Sewing machine tab and sewing machine

FIELD: textile, paper.

SUBSTANCE: sewing machine tab according to invention comprises the following components: part (44) for tab installation and fixation to pressing rod (14) of sewing machine; pressing part (46) for pressing of sewn item, when sewing needle (12) pierces; and slot (46) for direction of row (9) of zipper (8) elements by means of insertion of some elements in it. Besides sewing machine comprises the following components: rotary bracket (47), which is retained by part (44) for installation of tab with the possibility of rotation relative to part (44) and swings in vertical plane parallel to line (28) of sewing in process of sewing; and spring-loading facility (52) located between part (44) for installation of tab and rotary bracket (47) to spring-load rotary bracket (47) to sewn item relative to part (44) for tab installation.

EFFECT: invention provides for the fact that row (9) of zipper elements (8) may be directed, both when sewing needle (12) pierces and when seam is formed, so that thick cloth (6) and hidden zipper (8), which are difficult to sew to each other, may be accurately positioned and sewn to each other.

10 cl, 18 dwg

 

The technical field

The present invention relates to a presser foot of the sewing machine, which is used in the sewing machine, the presser foot of the sewing machine includes a lower feed teeth located on the side of the bottom surface of the needle plate of the sewing machine, and the upper input node, which is located on the side of the upper surface of the needle plate of the sewing machine and moves in connection with the lower feed teeth, and sewing machine performs the stapling operation when the supply of stitched products, compression of stitched products above and below the lower feed teeth and the upper feed roller, and relates to a sewing machine containing a sewing device.

Background of invention

In the renowned foot sewing machine for sewing a hidden zipper formed a pair of guide grooves opposing each other across an intermediate separation portion in the longitudinal direction in the Central part on the back holding the tape portion of the fastener and the hole for the needle is located in a relatively front end portion in the Central part presses the tape part. The lower end surface of the intermediate separation portion formed relatively lower than that presses the tape surface on the back surface presses the tape part, and the intermediate time is Lialina part passes forward from the front end presses the tape part, or sign on the side of the front end of the guide groove is formed with an extension in the form of a bell. In particular, relative to the foot sewing machine, for example, in published patent application of Japan No. 54-54462 (Patent document 1) has been proposed foot sewing machine for sewing a hidden zipper that is forming the extended portion extended in the direction of height and in the width direction in the front end portion of the intermediate separating part.

The upper part of the tongue, tinutul in U-shape hidden zipper, raise your fingers when hidden zipper sew to sew the item when using the foot sewing machine described in Patent document 1, and then inserted into the guide groove, and thus, the operation of the sewing begins. In this case, according to this patent document, the sewing operation is performed with the lower surface of the extended part formed in the front terminal part of the intermediate separation portion, clamping narisawa tape fasteners. Thus, the fastener elements can be introduced into the guide groove. In addition, according to this patent document, even in space, excluding elements of the zipper, or in part, in which there is a top end stop formed by p which means the collapse of the fastener element, made of thermoplastic resin, by means of ultrasonic processing, the fastener elements can be stably introduced into the guide groove.

Thus, the presser foot of the sewing machine described in Patent document 1 makes it possible to prevent problems, consisting in the fact that the intermediate separation portion presses the tape part slides on the upper part of the space part with the pull-tab zipper or thin upper stopper, formed by the collapse of the fastener elements, at the beginning of sewing a hidden zipper, and the zipper slipping out of the guide groove, thereby disrupting the stability of sewing.

For example, published application utility model Japan No. 5-74474 (patent document 2) describes the upper input node sewing machine containing banana means for podpruzhineny upper feed teeth to the needle plate and the means for regulating pressure to control the pressure of the compression between the upper and lower feed teeth by regulating power podpruzhineny banana means for fixing the pressure of the compression and power supply for sewn products.

According to the upper supply node sewing machine described in Patent document 2, can be applied to the fixed pressure of the compression and power under the Chi for sewn products and you can perfectly follow the changes in the thickness of the sewn product. As a consequence, there may be obtained the excellent quality of stitched products without any failures, such as the deviation of sewing or tissue damage.

Patent document 1: published patent application Japan 54-54462.

Patent document 2: published utility model application Japan No. 5-74474.

Description of the invention

Problems to be solved by the invention of

When you sew the zipper to the fabric of the tape fastener and sewn fabric piece impose on each other, and imposed sewn product serves in the position of the lower needle for stitching. However, if the tape fasteners are attached to a thick sewn product, such as a thick fabric or leather, including material for car seats, when using the foot sewing machine described in Patent document 1, the fabric and the tape fasteners cannot be reliably fed to the position of the lowering of the needles, because the fabric is thick, and therefore, the provisions of the fabric and the tape fasteners are rejected. Therefore, may fail, which consists in the fact that the seam or the position of the line sewing unstable, and this proposal may be inadequate as a foot sewing machine for thick fabrics.

In particular, when sew the so-called hidden zipper for that is about, to hide some elements of the zipper or seam, there is a gap between the edges of the right and left edge parts of the fastening elements, bent in U-shape when the fastener elements after sewing are connected to each other. Thus, strict management for sewing by narrowing the interval between the adjacent fastener elements and a line of sewing, to the extent possible to eliminate the visibility of fastener elements on the outside. However, the presser foot of the sewing machine described in Patent document 1, is primarily intended for fine fabrics. Therefore, strict control of the interval between adjacent fastener elements and a line of sewing is difficult, particularly where the thickness of the fabric changes when you sew the curved part or parts with tissue overlay. This point should be improved for sewing thick fabrics.

As a way of sewing thick fabrics are available way vertical filing tissue by actuating the foot of the sewing machine and the use of external clamping means and the lower feed teeth as a comprehensive way. However, in the case of the method of supplying the foot sewing machine, external clamping means and the lower feed teeth temporarily leave the fabric when applying the fabric. Thus, the number of elements of the fastener cannot napravliati the guiding groove continuously, and thus, the interval between the adjacent fastener elements and a line of sewing strictly impossible to control.

The present invention has been achieved to solve the problems related to the prior art, and the aim of the present invention to provide a foot sewing machine in which the fabric is pressed with a predetermined pressing force, when the sewing needle pierces, and clamping force during the perforation is removed when the joint is formed, for forming a seam by means of lifting the sewing needle to the relative movement of the fabric, the presser foot of the sewing machine is able to send a number of elements of the zipper into the groove direction of the elements and during perforation, and during the formation of a seam, even for hidden zippers, and sewing the machine is equipped with a presser foot of the sewing machine.

Tools for problem solving

The first basic construction of the foot sewing machine corresponding to the present invention, for achieving the above goals is a foot sewing machine, comprising: a portion for mounting foot for attachment to the pressure rod of the sewing machine; push the part that moves up and down together with the part to install the legs, for compression sewn products, when the sewing needle pierces; and a groove for directing elements that PE is elsaelsa up/down with respect to the part to install the feet to several elements of the zipper with the inserted number of elements, this presser foot of the sewing machine also includes: a swing arm, which has a groove for directing elements and held part for mounting feet can be rotated relative to the part to install the legs so that it swings in a vertical plane parallel to the line of sewing during sewing; and banana means located between the part to install the legs and swivel bracket for podpruzhineny swivel bracket to sewn product relative to the part to install the legs, for holding the spacing between adjacent elements and a line of sewing the zipper, and banana tool podruzamevaet swivel bracket to sewn product, whereby part of the groove for directing element directs the part of a number of elements, even if the presser foot of the sewing machine is in any position from the upper position and lower position.

With this design, it is preferable that the groove direction of the elements in the foot sewing machine is designed so that it includes a groove, which has parallel side surfaces located so that it is open to sewn product. In addition, in the case of sewing a hidden zipper, preferably, the opening groove for directing elements has zavarajivayushiy elements of h the e l e C which raises a number of items hidden zipper and wraps around the edge to attach the elements forming the bent U-shaped, up to an angle more than 90 degrees, and zavorajivajushaja elements part is located on the input end of the groove for directing elements.

Preferably, the push portion formed in part of the swivel bracket, and, in addition, a sewing machine, preferably, contains a hole for the needle, through which must pass the sewing needle, and the hole for the needle is located in the cover part, and a part of the exhaust elements to avoid landing in a range of elements, in this part for removal of elements is located in a groove to guide elements on the rear side pishevaya part relative to the hole for the needle.

With the above construction, preferably, the presser foot of the sewing machine, corresponding to the invention, also includes a sliding surface which is in contact with the surface of the sewn product, when the part is for setting foot raised, and the swing arm rotates in the direction of the sewn product due to the action of banana means, and the sliding surface is located in front of the swivel bracket. In addition, preferably, the presser foot of the sewing machine also has an angled surface, to the which tilted up relative to the bottom surface of the swivel bracket on the front end of the sliding surfaces, and zavorajivajushaja part, preferably formed on the side surface of sliding in the front inclined part. In addition, the width of the sliding surface, preferably set smaller than the width of the pressure part. The rear inclined part which performs motion for sewn product, preferably located in the rear part of the push part of the foot sewing machine. Additionally, banana means for podpruzhineny swivel bracket to sewn product relative to the part to install the legs can be made of elastic material, composed of a compression spring, leaf spring or the like.

The second basic design that meets the present invention is a sewing machine including a presser foot of a sewing machine, comprising: a portion for mounting foot for attachment to the pressure rod of the sewing machine; push the part that moves up and down together with the part to install the legs, for compression sewn products, when the sewing needle pierces; and a groove for guiding elements, which moves up/down with respect to the part to install the feet to several elements of the zipper together with a number of elements inserted into it, and presser foot of the sewing machine, in addition, contains: turning krons the Ein, which has a groove for directing elements and held part for mounting feet can be rotated relative to the part to install the legs in such a way that it can swing in a vertical plane parallel to the line of sewing during sewing; and banana means located between the part to install the legs and swivel bracket for podpruzhineny swivel bracket to sewn product relative to the part to install the legs to maintain the spacing between adjacent elements and a line of sewing the zipper, and banana tool is located between the part to install the legs and swivel bracket for podpruzhineny swivel bracket to sewn product with respect to part for installation paws.

The effects of the invention

Foot sewing machine, corresponding to the present invention, has the first basic structure. Thus, when the sewing needle for sewing under the so-called comprehensive way of presenting and actuate the sewing needle through the fabric, compressed lower the feed teeth and push part of the foot of the sewing machine when the supply of tissue, simultaneously passes through the fabric, the number of elements sent to the groove direction of the elements of the foot sewing machine so that its spacing relative activities is but a sewing needle set for end-to-end holding a sewing needle. When forming the filing of the weld operation fasten the cloth on the side of the sewing machine is carried out by external compression pressure means and the needle plate and installing a sewing needle, lower feed teeth and push part of the foot sewing machine away from fabrics made in the usual way. However, according to the present invention, a swing arm is tilted downward in the forward direction, even when the installation part of the foot sewing machine is raised, so that at least part of the groove for directing elements may be held in contact with a number of fastener elements. When the push rod is then lowered, can be prevented failure, consisting in the fact that a number of items slipping out of the groove for directing elements and destroyed the push part. Thus, even if the push rod is in any position that is raised during the sewing or omitted, the number of elements of the zipper still goes at least part of the groove for directing items to save the interval between the line sewing and a number of fastener elements. Thus, the number of elements can be sent continuously groove for directions even complex injection method, according to which the presser foot of the sewing machine is raised and lowered. Therefore, even when tastes who have to sew thick fabric, place near the coupling heads of the fastener elements may be sewn stably, thereby preventing the violation of sewing.

When the sewing needle is actuated to pierce when you sew under the so-called method of vertical filing when casting a sewing needle to pierce tissue, compressed needle plate and the push part of the foot sewing machine, for fixation of the tissue relative to the main body of the sewing machine, essentially the entire surface of the groove for directing elements foot sewing machine comes in contact with a number of fastener elements to set the interval relative to the sewing needle when sewing needle pierces the fabric. When forming part of the feeding the weld is made, the installation operation of the sewing needle and push part of the foot sewing machine with the assignment from the fabric, feeding the fabric through compression, external pressure tool and lower the feed teeth. In this case, even if the installation part of the foot sewing machine leaves fabric clutch with a sewing needle, a swing arm bends downwards in the forward direction. Therefore, the number of elements can remain seated in the groove for directing elements. Thus, even when formed part of the filing joint, a groove for directing elements still sends a number of elements so that h is about a number of items never slipping out of the groove for guiding elements, and the interval between the position of the sewing and a number of elements can be specified. Thus, some elements may still be directed groove for directing elements in spite of the way with a vertical feed, whereby the presser foot of the sewing machine is raised and lowered. Therefore, even if the zipper to sew thick fabric, near the part of the head gear elements of the zipper can be sewn stably, thereby preventing the violation of sewing.

With the formation of a groove for directing elements having parallel side surfaces, open to sewn product, a groove for directing elements in the presser foot of the sewing machine, the number of elements can be directed through a guide groove with a predetermined shape, thereby allowing to set the interval between the position of the sewing and a number of elements. In addition, in the case with a hidden zipper formed in U-shape, due to the use of zavorajivaiushe elements part in the input end of the groove for directing elements the number of elements rises so that the edge portion to attach the ribbon elements of a fastener formed in a curved U-shaped, folded up to an angle more than 90 degrees. Therefore, the belt buckle hidden zipper, which can be difficult to sew, can be placed t is a rule even on a thick cloth and sewn.

Part of the exhaust elements to avoid planting a number of elements formed on the rear side pishevaya part relative to the sewing needle, which passes through the sewing needle. Accordingly, the number of elements after sewing can be released from the groove for directing elements to facilitate sewing the curved part, even if the push portion formed in part of the swivel bracket. Thus, even if the tape fasteners are attached to a thick fabric along the curve, it can be sewn easily and accurately.

The front part of the swivel bracket has a sliding surface which is in contact with the surface of the sewn product, when the swing arm rotates in the direction of the sewn product action banana funds after clamping force at the time when the needle passes through, is removed. Thus, the sliding between adjacent elements and a groove for directing elements when formed part for supplying weld is improved, thus preventing the violation of the step of sewing and bending of the joint. In addition, there is an inclined surface that is inclined upward relative to the bottom surface of the swivel bracket, and a front inclined portion, which performs the movement sewn product, is located on the front end on top of the spine slip. Thus, the fabric is fed reliably, even if the thickness of the sewn products increases during the action, thus preventing the violation of sewing. Because it is formed zavorajivajushaja element part, the part of the groove for directing elements continues to direct the guide elements, even when formed part of the submission of the seam, so that the number of elements never slipping out of the groove for directing elements, when the presser foot of the sewing machine is raised. Thus, the interval between the position of the sewing and a number of items during sewing with the lowered presser foot of the sewing machine is set accurately. By setting the width of the sliding surface, smaller than the width of the cover part, thereby to avoid interference with the needle plate of the sewing machine or with the lower feed teeth, you can prevent damage to the sliding surface. Thus, the violation of sewing due to damage to the sliding surface can be prevented.

Thanks to the use of the rear inclined part, which performs the movement sewn product, on the rear end of the push part of the foot sewing machine, the fabric can be fed to the push part exactly, even if the fabric is stitched operation feed back. The sewing operation feed back can be performed without binding, even is if sew fabric, having different thickness. If an elastic material, such as a compression spring or a plate spring, is taken as banana means for podpruzhineny swivel bracket to sewn product relative to the part to install the legs, a mechanism that matches the groove for directing elements with a number of elements that can be implemented in a compact configuration.

When the presser foot of the sewing machine, corresponding to the present invention, having the axis of the hinge that holds the swing arm including a groove for guiding elements can be rotated in a vertical plane parallel to the line of sewing, and banana means for podpruzhineny groove for directing items to sewn product used in the sewing machine, essentially the entire surface of the groove for directing elements in the sewing machine comes in contact with a number of elements, when the sewing needle pierces, so that the sewing needle can pierce with spaced relative to the sewing needle. When the push portion of the foot sewing machine is set away from the fabric and moves relative to the tissue to form part of a filing joint, swivel arm swings downward in the forward direction for holding groove for directing elements in contact with a number of elements. Thus, when cachepolicy seam formed the groove for directing elements continues to send a number of elements, thus setting the interval between the position of the sewing and a number of elements. Thus, even when sew thick fabric or a fastener, a violation of sewing can be prevented.

Brief description of drawings

Figure 1 is a perspective view of a part near the lowered position of the needle in the sewing machine with foot sewing machine according to the first variant implementation of the present invention.

Figure 2 is a perspective view with a spatial separation of the parts of the foot sewing machine according to the first variant embodiment of the invention.

Figure 3 is a sectional view of a part near the lowered position of the needle in the state in which the sewing needle and presser foot of the sewing machine is omitted.

4 is a view in cross section of a part near the lowered position of the needle in the state in which the sewing needle and presser foot of the sewing machine is raised.

5 is a view showing the cross section along the line V-V cross-section near the lowered position of the needle shown in figure 3.

6 is a view showing the cross section of the part near the lowered position of the needle when conventional zipper is stitched to the fabric.

Fig.7 is a view showing the state in which the zipper shown in Fig.6, sewn to a thick fabric, and the fabric is curled around the sewn part for education other sewn part.

Phi is .8 - a table showing bronirovanie according to a comprehensive method of supplying the tissue by actuating the foot sewing machine, an outer pressure means, a sewing needle and lower the feed teeth, comprehensive way.

Figure 9 is a table showing bronirovanie according to the way the vertical feed fabric through actuation of the external pressure means and the lower feed teeth.

Figure 10 - timing diagram, schematically showing a vertical movement and a reciprocating movement of the respective components with the set of coordinates of the abscissa as the angle of the spindle relative to bronirovania integrated injection method shown in Fig.

11 is a timing chart schematically showing a vertical movement and a reciprocating movement of the respective nodes with the set of coordinates of the abscissa as the angle of the spindle relative to bronirovania according to the way the vertical feed is shown in Fig.9.

Fig is a perspective view with a spatial separation of the parts of the foot sewing machine according to the second variant of implementation of the present invention, includes a front inclined portion in which the front end of the foot sewing machine is tilted up, and the rear inclined part, in which the rear portion is inclined upward.

Fig is a perspective view l the CRP sewing machine, shown in Fig, when viewed from below.

Fig is a sectional view of a part near the lowered position of the sewing needle, in which the part is for setting foot raised and the sliding surface slides on the surface of the zipper to form part of the submission of the joint.

Fig - foot sewing machine when viewed from the front line of sewing or a view showing the cross-section made along the line XV-XV in Fig.

Fig is a sectional view of the swivel bracket foot sewing machine, made according to line XVI-XVI in Fig.

Fig is a perspective view with a spatial separation of the parts of the foot sewing machine according to the third variant of implementation of the present invention, includes a rotating bobble head on the front end of the swivel bracket.

Fig - side view of the foot of the sewing machine when viewed from the side of the line of sewing, showing the cross-section of the zipper, fabric, needle plate and lower the feed teeth.

Fig is a perspective view showing a fourth variant of implementation of the present invention, includes a rotating roller head on the front end of the swivel bracket.

Description reference positions

6 - Cloth.

8, 108 - zipper.

9, 109 - Number of elements.

10 - Sewing the node.

12 - Sewing needle.

14 - Push rod.

16 - External clamping means.

22 - The intermediate clamping means.

24 - Top pressure node.

26 - the Needle plate.

28 - Line sewing.

40, 140, 240, 340, 440 - presser Foot of the sewing machine.

42, 142, 242, 342, 386, 486 - the Groove for directing elements.

43 Mounting hole.

44 - Part for mounting tabs.

45 - Mounting screw.

46, 246, 346, 446 - Push part.

47, 147, 247, 347, 447 - Swivel bracket.

48 - hole for the needle.

50, 382, 482 - Axis hinge.

53 - Reliance.

54 - Reliance.

56 is a Nest of springs.

52 is a compression Spring.

57 - Rear stopper.

58 - Lower the feed teeth.

59 is a Front stopper.

60, 260, 360 - slip Surface.

128, 129 - Sewn part.

262 - Inclined surface.

263 - Front inclined part.

264 - Rear inclined part.

270 Part for removal of elements.

380 - Bobble head.

383, 384 - Reliance.

480 - Roller head.

B - Interval.

E - Distance.

H1, H2, H3 - Length.

L - feed Direction of the fabric.

The best option of carrying out the invention

Next will be described typical embodiments of the presser feet of the sewing machine according to the present invention with particular reference to the accompanying drawings. In the following embodiments of the invention will be described two drive system that is integrated actuator, in which the presser foot of the sewing machine and a sewing needle do return atno-and-forth motion in the direction of the stitching when you move up/down, and external clamping means moves upward/downward, and means for supplying up/down, in which the presser foot of the sewing machine and the sewing needle is moved up/down, and an external clamping means is moved up/down while making a reciprocating motion in the direction of sewing, because the design of the foot sewing machines, sewing needles and external clamping means essentially the same.

Figure 1 shows a perspective view of a portion near a position with the lowered needle in a sewing machine provided with a presser foot of the sewing machine according to the first variant implementation of the present invention. This variant embodiment of the invention shows a specific example of sewing a hidden zipper 8 (sewn products) to a thick fabric 6 (sewn product) using a sewing machine. The fabric 6 is, for example, fabric for car seat or thick material, such as leather. One end of the hidden zipper roll 8 in the U-shaped, and spiral-shaped element 9 attached to the side edge of the tape fasteners, folded in U-shape. In the embodiment of the invention shown in figure 1, the image of the sewing thread to use when sewing omitted.

Sewing the node 10 of the sewing machine shown in figure 1, contains a push rod 14, which is vizitsa vertically in connection with the movements forward/backward and up/down of the sewing needle 12, the 40 foot sewing machine, which is attached to the pressure rod 14 and comes in contact with sewn product before sewing needle 12 for compression sewn products, when the sewing needle 12 pierces, and external clamping means 16, which moves essentially vertically in the opposite direction to the movement of the sewing needle 12 or 40 feet sewing machine for compression sewn products, when the joint is formed with a sewn product, not pressed by the presser foot 40 of the sewing machine. As shown in figure 1, the push rod 14 and the foot 40 of the sewing machine are intermediate clamping means 22, which presses around the sharp part of the sewn product. The intermediate clamping means 22 and the external clamping means 16 comprise connectors part, which provides cross-linking the movement of the sewing needle by moving up and down alternately, and the top push the node 24 for formation of a seam. Needle plate 26, which presses the sewn product and has an aperture providing a passage through it of the sewing needle 12, and a hole, which allows the protrusion of the lower feed unit (not shown) for compression sewn products bottom, below the upper pressure node 24.

Figure 2 shows a perspective view with a spatial separation of the child is her legs 40 of the sewing machine, relevant to the present invention. As shown in figure 2, the foot 40 of the sewing machine includes: part 44 for mounting tabs for attaching the legs 40 of the sewing machine to the pressure rod 14 by inserting the tabs 40 of the sewing machine in the mounting hole 43 to the pressure rod 14 of the sewing machine and the torque split clamp by rotating the fastening screw 45; clamp portion 46 for compression sewn products with a specified pressing force to pierce when the sewing needle 12 pierces; the groove 42 for guiding elements for guiding the passage of the elements 9 zipper; axis 50 of the hinge that holds the swing arm 47 vertically with respect to part 44 for install the legs, that is, holds the swivel bracket can be rotated in a plane parallel to and perpendicular to the line 28 sewing; and a pressure spring 52 (banana medium) for podpruzhineny groove 42 for directing items to sewn product. Opening for the introduction of a number of 9 items hidden fastener into the groove 42 for directing elements contains zavarajivayushiy element part, which raises a number of 9 elements, bending them into a U-shape, and wraps it up to an angle more than 90 degrees. Although in the embodiment of the invention shown in figure 2, the groove 42 for directing element is in turn signals the m bracket 47, while the formed hole 48 for the needle, which ensures the passage of the sewing needle 12 through it, and push the part 46, the push portion 46 may be located on part 44 to install the legs, which is not swinging.

Assuming that the closer in the feed direction of the fabric is the front and what is back, bearing 53 and a bearing 54 for holding the axis of the hinge 50 are located in the upper part on the rear end of the swivel bracket 47 and the lower part of the rear end part 44 for mounting pads, respectively. Due to the implementation of the legs 40 of the sewing machine thus swivel bracket 47 is free to swing around the axis 50 of the hinge with respect to part 44 for mounting tabs. A hole 48 for the needle, which penetrates through the swivel bracket 47 in the vertical direction, is located in the intermediate part between the front end and the rear end of the swivel bracket 47, and in addition, the compression spring 52 (banana tool) is installed in the slot 56, located between the hole 48 for the needle and the axis 50 of the hinge. The spring 52 is located between the compression surface on the underside of the rear end part 44 to install the legs and the upper surface of the swivel bracket 47 to podpruzhineny swivel bracket 47 down, so that the swivel bracket 47 having a groove 42 for directing element is in, rotates around the axis 50 of the hinge, even if part 44 to install the legs raised. As a consequence, the opening of the groove 42 for directing elements may be held in contact with a number of 9 elements. This can prevent the slipping of a number of 9 items from the groove 42 for directing elements and the destruction of the push part 46, when the push rod 14 is lowered. Thus, even if the push rod 14 is raised, or the push rod 14 is lowered, the groove 42 for directing elements continues to send a number of 9 elements of a fastener to maintain the interval between the position of the sewing and next 9 items clasp.

Although in the embodiment of the invention shown in figure 2, as banana means denoted by the compression spring 52 to podpruzhineny groove 42 for directing items to sew product, instead of the spring 52 compression can be used tension spring, plate spring, resin and other elastic material. Due to the location of the banana means, such as spring 52 compression, between the hole 48 for the needle and the axis 50 of the hinge, as shown in figure 2, can be obtained by a mechanism that continues to engage the range of 9 items with a groove 42 for directing elements.

Next, with reference to figure 3 and 4 will be described movement of the legs 40 of the sewing machine when sewing fabric 6 with rytoj zipper 8.

Figure 3 shows a sectional view of a part near the lowered position of the needle when sewing needle 12 and 40 foot sewing machine is omitted. Figure 4 shows a sectional view of a part near the lowered position of the needle when sewing needle 12 and 40 foot sewing machine is raised. Embodiments of the invention shown in figure 3 and 4 relate to a method of stitching using integrated injection method using actuate the legs 40 of the sewing machine, external clamping means 16, a sewing needle 12 and the lower feed teeth 58 in an integrated manner. Nodes that already described with reference to figures 1 and 2, is shown with the same reference positions, and their description is omitted.

When the fabric 6 and the hidden zipper 8 are attached to each other according to the integrated injection method using a sewing machine, shown in figure 1, hidden zipper 8 is placed on the surface F of the fabric on the bent edge part, which is part of the sewn products from fabric 6. With a number of elements 9 hidden zipper 8, passing through the groove 42 for directing elements, begin sewing by rotation of the spindle of the sewing machine. Then, at a time when the push rod 14 is lowered to the side of the sewn product, the lower the feed teeth 58 are raised so that the foot 40 of the sewing machine and lower the feed teeth 58 SG is thought the zipper 8 and the fabric 6 with a predetermined clamping force on the top and bottom. After that, the sewing needle 12 is lowered to the formation of a seam, as shown in figure 3.

A variant of the invention, is shown in figure 3, shows how to sew with a comprehensive submission, indicating the state in which the sewing needle 12 pierces, when the sewn product is compressed by 40 foot sewing machine and lower the feed teeth 58, and the fabric 6 is served by moving the tabs 40 of the sewing machine, the lower the feed teeth 58 and a sewing needle 12. As shown in figure 3, the front brakes 59 (see figure 4) swivel bracket 47 is in contact with the part 44 to set the tabs to block further swing swivel bracket 47 in a clockwise direction, so that the push portion 46 of the legs 40 of the sewing machine presses sewn product of clamping force, when the sewing needle pierces.

Then, when the spindle of the sewing machine rotates the source drive (not shown) from the state shown in figure 3, the sewing needle 12 is lifted, freeing the zipper 8 and fabric 6. Then the push rod 14 is raised, removing the clamping force of the legs 40 of the sewing machine. By lowering the lower feed teeth 58 at the time when the push rod 14 is raised, lower the feed teeth 58 are mounted away from the sewn products. External clamping means 16 is lowered at the time when prig the occupying force is removed, for compression sewn products to the needle plate 26. By promoting the tabs 40 of the sewing machine when installing the lower feed teeth 58 and a sewing needle 12 away from the sewn products, in the direction indicated by the position M, the foot 40 of the sewing machine and sew products are moved relative to each other for feeding the weld. The condition for formation of a seam at this time is shown in figure 4.

In the state in which the sewing needle 12 mounted away from the sewn products, as shown in figure 4, i.e. to the formation of the seam, swivel bracket 47 podrazumevaetsya to sewn product force of the spring 52 is compressed. Since the swing arm 47 is made so that it can rotate freely around the axis 50 of the hinge relative to the part 44 to install the legs, swivel bracket 47 remains in a state of forward tilt. In this state, the surface 60 of the slide, located on the front bottom surface of the swivel bracket 47 moves in the direction M shown in figure 4, while maintaining contact with the surface of the sewn product. Since the opening of the groove 42 for directing elements contains zavarajivayushiy elements part for lifting range of 9 elements to form bent in U-shape and wrapping it up to an angle more than 90 degrees along the entire length N1, number 9 items hidden tastes and can be raised even in a state in which the swing arm 47 is tilted forward as shown in figure 4. Even when the push rod 14 is lowered so that the rear end of the swivel bracket 47 is in contact with a number of 9 items, range of 9 items again mates with the side of the rear end of the groove 42 for directing elements with the side of the front end of the groove 42 for directing elements, specified as a criterion. Thus, failure, consisting in the fact that the number of 9 elements that are difficult to sew because it is formed in U-shape can be clamped to the push part 46, which moves relative to the sewn products can be excluded.

As shown in figure 4, the magnitude of the swing swivel bracket 47 is limited because the surface 60 of the slide comes into contact with the sewn product. In addition, even if the part 44 to install paws raised, the upper surface of the swivel bracket 47 is equipped with a rear stopper 57, which is in contact with the lower surface part 44 to install the feet, to block rotation of the swivel bracket 47 counterclockwise more than a given value of the swing.

The push rod 14 is lowered to the side of the sewn product again from the state shown in figure 4, so that the 40 foot sewing machine presses sewn product primaudaye. Due to the rise of external clamping means 16 of clamping force external clamping means 16 is removed, so that the state shown in figure 3, is restored to the formation of sharp parts. By repeating the series of operations sewn product is fed in the direction L to form a line 28 sewing.

Next, with reference to figure 5 will be described in the form of the cross section of the groove 42 for directing elements. Figure 5 shows a view showing the cross-section, running along the line V-V, the part near the lowered position of the needle shown in figure 3.

As shown in figure 5, the groove 42 for directing elements, which is open to sewn product has parallel side surfaces A, A', which compresses the range of 9 items to their destinations. In the embodiment of the invention shown in figure 5, the groove 42 for directing elements specifies the interval B between the position of the buckle for a number of 9 elements and the position of the sewing for sewing concealed zipper 8 to thick fabric 6. A groove 42 for directing element directs a number of 9 elements by compression to stabilize the interval B between the position of the sewing and a number of 9 elements, thus preventing the violation of sewing.

When a hidden zipper 8 is stitched to the fabric 6, the interval B between the position of the buckle for a number elementov and position of sewing, preferably, should be as small as possible to prevent the visibility from outside the range of 9 items after sewing. In addition, the interval B, preferably, should be stable. Thus, the groove 42 for directing elements, shown in figure 5, sends a series of 9 items hidden fasteners so that the number of elements wrapped up to an angle more than 90 degrees, thus reducing the interval B. In this case, preferably, the angle θ of the groove 42 for directing elements, shown in figure 5, is approximately 80 degrees.

Next, with reference to 6 will be described another variant form in cross-section of the groove 42 for directing elements. Figure 6 shows a sectional view of a part near the lowered position of the needle, showing the same portion as the cross-section shown in figure 5. Although figure 5 shows a 40 foot sewing machine for sewing a hidden zipper 8 to fabric 6, figure 6 shows the form in the section tabs 140 sewing machine for sewing a conventional zipper 108 to fabric 6.

As shown in Fig.6, the groove 142 for sending items in the swivel bracket 147 has parallel side surfaces C, C', to which adjoins a number of 109 elements of ordinary zipper 108. In the embodiment of the invention, shown in Fig.6, the groove 142 for directing elements specifies the interval D between adjacent 109 elements and put the eat sewing for sewing zipper 108 to a thick fabric 6. Since the groove 142 for directing element directs a number of 109 elements by compression therefore, the interval D between the position of the sewing and near 109 elements can be stabilized to prevent violations of sewing.

7 shows the state in which the zipper 108 sew thick fabric 6 when using the swivel bracket 147, shown in Fig.6.

7 shows the state in which the zipper 108 sew thick fabric 6 through the sewn portion 128 when using the swivel bracket 147, shown in Fig.6, and the fabric 6 is curled around the sewn portion 128, and sew through the sewn portion 129. The bottom surface 7 is the front surface of the fabric 6, and the upper surface is the rear surface of the fabric 6. Even if the fabric 6 is thick, the distance E between the end surface of a number of 109 elements and the line of fold of fabric 6 may be permanent due to the sewing of the zipper 108 to fabric 6 by means of the rotary bracket 147 having a groove 142 for directing elements.

Next will be described the actions of the foot sewing machine, external clamping means, a sewing needle and lower the feed teeth in each of the feed method in a vertical position and comprehensive way of submission.

On Fig presents a table showing bronirovanie according to the SNO comprehensive method of supplying the tissue by actuating the foot of the sewing machine, external clamping means, a sewing needle and lower the feed teeth. Appropriate feed direction for lifting, lowering, return and supply represent the direction shown in figure 4.

According to a comprehensive way of supply, as shown in Fig, at a time when the push rod 14 is lowered to the side of the sewn products from the state shown in figure 4, the lower feed teeth 58 are raised so that the foot 40 of the sewing machine and lower the feed teeth 58 compress the zipper 8 and cloth 6 on the top and bottom with power compression. After that, the sewing needle 12 is lowered for forming peelable side for the seam, as shown in figure 3. At this time, the 40 foot sewing machine, lower the feed teeth 58 and the sewing needle 12 are moved synchronously in the direction L shown in figure 3, for supplying the tissue.

Then the sewing needle 12 is lifted from the state shown in figure 3, and is away from the zipper 8 and fabric 6. Then the push rod 14 is raised for removal of the clamping force with which the presser foot 40 sewing machine presses sewn product. At that time, when the push rod 14 is raised, lower the feed teeth 58 are lowered and released sewn product. At the same bronirovanii, when the clamping force is removed, the external clamping means 16 is lowered, so that the coming of the by product is compressed together with the needle plate 26. Thanks to the return of the tabs 40 of the sewing machine, the lower the feed teeth 58 and a sewing needle 12 from the state away from the sewn products (towards M) 40 foot sewing machine and sew products are moved relative to each other to form part of the submission of the joint. The state, which forms part of the flow of the weld, is shown in figure 4, in which the surface 60 of the slide 40 feet sewing machine glides over the surface of the zipper 8. By repeating a series of operations sewn product is served to the formation of the line 28 sewing.

Then will describe the steps foot sewing machine, external clamping means, a sewing needle and lower the feed teeth according to the method of vertical filing.

Figure 9 presents a table showing bronirovanie according to the way the vertical feed fabric through actuation of the external clamping means and the lower feed teeth, foot sewing machine, external clamping means, a sewing needle and lower the feed teeth. With appropriate direction for lifting, lowering, return and supply, shown in the table are the directions outlined in figure 4.

According to the method of the vertical feed, as shown in Fig.9, the lower the feed teeth 58 are raised when omitted external PR is imnam the tool 16, as shown in figure 4, to compress the zipper 8 and fabric 6 on the top and bottom. Then the 40 foot sewing machine rises, and while maintaining this state, the external clamping means 16 and the lower feed teeth 58 are served in the direction L (back) to form part of the submission of the joint. The condition at this point is a state in which the surface 60 of the slide 40 feet sewing machine glides over the surface of the zipper 8, as shown in figure 4.

After completion of the feeding sewn products 40 foot sewing machine is lowered for compression zipper 8 and fabric 6 to each other together with the needle plate 26 with power compression. Then, at a time when the external clamping means 16 is raised, lower the feed teeth 58 are omitted, and starts the operation of the promotion and then return for the next operation feed.

Then the sewing needle 12 is lowered for forming peelable side for seam. After the formation of the peelable part of the sewing needle 12 is lifted, while the external clamping means 16 is lowered. At the same time, lower the feed teeth 58 are raised to compress the zipper 8 and fabric 6 on the top and bottom, and then the 40 foot sewing machine is raised to start the next operation feed. By repeating a series of operations sewn product is supplied in series is in the direction L to form a line 28 sewing.

Figure 10 shows a time chart schematically showing a vertical movement and a reciprocating movement of the foot sewing machine, external clamping means, a sewing needle and lower the feed teeth with a set of coordinates of the abscissa as the angle of the spindle based on the table of bronirovania under the comprehensive way of presenting shown in Fig. Figure 11 shows the timing diagram, schematically indicating the vertical motion and reciprocating motion of the foot sewing machine, external clamping means, a sewing needle and lower the feed teeth with the axis of the abscissa of the sewing machine as the angle of the spindle based on the table of bronirovania according to the way the vertical feed is shown in Fig.9. Since the content of figure 10 and 11 is identical to the shown Fig and 9, their description is omitted.

Next will be described another variant implementation of the invention related to the shape of the foot sewing machine.

On Fig depicts a perspective view with a spatial separation of the parts, showing the foot 240 sewing machine according to the second variant of implementation of the present invention, includes a front inclined part 263, in which the front end of the legs 240 sewing machine is tilted up, and the rear inclined part 264, in which the rear end is tilted up. On Fig shows a perspective view (view on the managing XIII) feet 240 sewing machine, shown in Fig when viewed from below. Components having the same functions as shown in figure 2, is represented with the same reference positions and their description is omitted.

As shown in Fig, swivel bracket 247 feet 240 sewing machine includes: a push portion 246 located on the bottom surface of the swivel bracket 247, for compression sewn products with power compression when the sewing needle 12 pierces; the front inclined part 263, which has an angled surface 262, tilted upward in the forward direction relative to the pressure surface of the pressure part 246, and moves along the sewn product when it comes to sewing forward to sewn product; and the rear inclined part 264, which moves along the sewn product, when the sewn product is fed in the backward direction. In addition, the front inclined portion 263 includes: surface 260 of the slide, which acts on the anterior termination of the rotating bracket 247 in a convex shape; and a groove 242 for directions sarybayeva element, which is located on the side surface 260 of the slide and in which the number 9 items passes to its direction. In the embodiment of the invention shown in Fig, the inclined surface 262, which moves along the sewn product formed is lower than the protruding p is the surface 260 of the slide. Although this variant shows an example in which cover the surface of the push portion 246 and the inclined surface 262 is made flat, the present invention is not limited to a plane, and at least one push portion 246, the inclined surface 262, surface 360 of the slide and the rear inclined part 264 can be made with curved surface. In addition, the push portion 246, the inclined surface 262, the surface 360 of the slide and the rear inclined portion 264 can be formed in the same curved surface so that they are all continuous, and the direction and degree of curvature can be determined accordingly.

As shown in Fig, part 270 for removal of elements, which is extended in its width direction is in place, not colliding with a hole 48 for the needle on the backside pishevaya part relative to the openings 48 for the needle in the push part 246, to avoid being hit by a series of 9 elements. In modifications of the construction shown in Fig and 13, the width WS of the surface 260 of the slide, inclined and protruding from the front terminal portion of the swivel bracket 247 in convex form, is set smaller than the width WP of the pressure part 246.

Next, with reference to Fig will describe the steps of the front inclined part 263 and the rear inclined part 264.

On Fig depicted VI the section of the part near the lowered position of the needle, showing the state in which the raised sewing needle 12 and a part 44 to set the tabs 240 sewing machine, surface 260 of the slide, located on the front inclined part 263 of the swivel bracket 247, slides on the surface of the zipper 8 for forming part of the submission of the joint. Meanwhile, the components described with regard to figure 4 and 12, are assigned the same reference position and their description is omitted.

When part of the flow seam is formed, as shown in Fig, the spring 52 compression podruzamevaet swivel bracket 247 including a groove 242 for sending items to sewn product. Since the swing arm 247 is made so that it can rotate freely around the axis 50 of the hinge relative to the part 44 to install the legs, swivel bracket 247 moves in the direction M shown in Fig, so that the swivel bracket 247 stores the forward inclined state with the surface 260 of the slide, located on the front of the swivel bracket 247, remaining in contact with the surface of the sewn product.

In the embodiment of the invention shown in Fig, the front inclined portion 263 that performs the action of traffic on the sewn product, comes forward from the swivel bracket 247 when it comes to sewing forward to sewn product. PR is eating groove 242 to number 9 by passing through it a number of elements formed on the side surface 260 of the slide on the front end of the swivel bracket 247. The forward inclined portion 263 having an inclined surface 262, which is inclined upward in the forward direction relative to the pressure surface of the pressure part 246, comes forward from the swivel bracket 247 so that the segment H2, including the groove 242 for guiding elements and the input part may be set long. This allows the range of 9 items hidden zipper 8, sternotomy in U-shape to be reliably raised by direction over a long distance, thus preventing the crash, consisting in the fact that the number of 9 elements can be clamped to the push part 246. In addition, after the zipper 8 is sewn, can be sutured other fabric.

The use of the rear inclined part 264, which performs the action of traffic on the sewn product, facilitates the filing of fabric 6 to the pressure part 246, even when the fabric is sewn operation feed back. Even in the case of stapling tissue having different thicknesses, they can be sewn to each other by operation of the feed back without binding.

Next, with reference to Fig will be described the effect of the width WS of the surface 260 of the slide, is formed smaller than the width WP of the pressure part 246.

On Fig shows the view tabs 240 sewing machine when viewed from the front line of sewing or view showing the cross-section of the zipper 8, the fabric 6 and the needle p of the plates 26 in part, where the zipper 8 and the surface 260 of the slide come into contact with each other (a sectional view made along line XV-XV in Fig).

As shown in Fig, by setting the width WS protruding parts of the surface 260 of the slide less than the width WP of the pressure part 246, or smaller than the through hole WN in the needle plate 26, it is possible to prevent the failure, namely, that the surface of the surface 260 of the slide and the surface of the needle plate 26 may be damaged due to the fact that the upper surface of the surface 260 of the slide and the needle plate 26 grind in each other in the relative motion, even when no zipper 8 or cloth 6 are not located between the swivel bracket 247 and the needle plate 26, as at idle supply, at the stage before the zipper 8 and the fabric 6 will be sewn to each other, or at the stage after completion of the sewing together of the zipper 8 and fabric 6. Thus, the slip between the surface 260 of the slide/needle plate 26 and sewn product can be maintained in excellent condition for a long period to prevent the violation of sewing.

Next, with reference to Fig will be described the operation for the case when the push portion 246 formed in part of the swivel bracket 347, while part 270 to drain elementaryaged in the groove 242 to guide elements on the rear side pishevaya part relative to the openings 48 for the needle in the push part 246.

On Fig shows a sectional view of the swivel bracket 247 feet 240 sewing machine, made according to line XVI-XVI shown in Fig.

As shown in Fig, number 9 items after sewing can be bent in the direction of right and left through the application of part 270 for removal of elements to exclude the planting of a number of 9 elements in it on the back pishevaya part relative to the openings 48 for the needle, through which the sewing needle 12. Even if the zipper 8 to sew thick fabric 6, and, in addition, sew a curved section, the failure lies in the fact that the number of 9 elements may slip out of the groove 42 for directing elements may be excluded, while sewing the curved part can be easily performed. A groove 42 for directing elements having essentially the same width as the range of 9 elements, is formed between part 270 for removal of elements and a hole 48 for the needle to block direct interaction between the hole 48 for the needle and part 270 for removal of items. Such a design can be made stable sewing without rejecting the descending needle, and at the same time, the curved section can be sewn by bending the range of 9 items after sewing in the direction of the right and left.

Next, with reference to Fig will be described another variant of the design, the products of the swivel bracket foot sewing machine with links to Fig. On Fig shows a perspective view with a spatial separation of the parts, showing a third alternative implementation of the present invention, which also applied rotatable bobble head 380 on the front end of the swivel bracket 347, which is the 340 foot sewing machine.

As shown in Fig, 340 foot sewing machine contains: part 44 for mounting foot for attachment to the pressure rod 14 of the sewing machine; a push portion 346 for compression sewn products with a given clamping force, when the sewing needle 12 pierces; the grooves 342, 386 for directing element for directing a series of 9 elements by passing the number of elements in them; the axis 50 of the hinge that holds the swivel bracket 347 with the possibility of free rotation in a vertical plane parallel to the line of sewing with respect to part 44 to set the foot; and the axis 382 hinge that holds the swinging head 380 with the possibility of free rotation in a vertical plane parallel to the line of sewing relative to the swivel bracket 347. Bearing 383 and bearing 384, which support the axis of the hinge 382, located in the front end of the swivel bracket 347 and the rear end of the swinging head 380, respectively. As in the design shown in figure 2, the compression spring (not shown), which is actuat as banana means for podpruzhineny groove 342 for sending items to sew product, located behind the openings 48 for the needle in the swivel bracket 347 and behind the axle 50 of the hinge.

With this construction the legs 340 sewing machine swivel bracket 347 can swing around the axis 50 of the hinge relative to the part 44 to install the legs, and swinging the head 380 can swing around the axis 382 hinge relative to the swivel bracket 347.

Next, with reference to Fig will be described the operation of the tabs 340 sewing machine with rotating bobble head 380 on the front end of the swivel bracket 347.

On Fig shows the tabs 340 sewing machine when viewed from the side of the line of sewing or side views in cross section of the zipper 8, the fabric 6, the needle plate 26 and the lower feed teeth 58.

As shown in Fig, the slots 386, 342 for directing element for directing a series of 9 elements by passing them in a number of elements formed in the surface of the 360 slip bobble head 380 and part of the swivel bracket 347.

When part of the flow of a seam formed in the raised portion 44 to install the legs, swivel bracket 347 podrazumevaetsya compression spring (not shown) in the direction of the sewn product. Since the swing arm 347 is made so that it can be rotated around the axis 50 of the hinge relative to the part 44 to install the legs, swing arm 347 is moved to N. the Board M, shown in Fig, maintaining the condition of the slope ahead.

Since the oscillating cylinder 380, made in such a way that it can rotate around the axis 382 hinge located at the front end of the swivel bracket 347, surface 360 of the sliding swivel bracket 380 is moved in the direction M shown in Fig, maintaining contact with the surface of the sewn product. Zavorajivajushaja element part, which raises a number of 9 elements formed thereby in a curved U-shaped and wraps him up to an angle of 90 degrees, is located along the length H3 in the opening of the groove 386 direction of the elements formed in the surface of the 360 slip bobble head 380. Therefore, even if the swing arm 347 is tilted forward as shown in Fig, number 9 items hidden fasteners can be effectively raised. Thus, the number of 9 elements, formed in a U-shape can be effectively raised, thus preventing the failure lies in the fact that the number of 9 elements can be clamped to the push part 346, which is moving relative to the sewn products. In addition, even when the push rod 14 is omitted, it is possible to prevent the failure, namely, that the number of elements can slip out of the groove 342 for guiding elements and collapse pressure part. Thus, d is as if a hidden zipper 8 to sew thick fabric 6, violation of sewing can be prevented.

Next, with reference to Fig will be described another variant of the design of the swivel bracket foot sewing machine. On Fig depicts a perspective view showing a fourth variant of implementation of the present invention, in which the front end of the swivel bracket 447, which is the 440 foot sewing machine is a rotating roller head 480.

As shown in Fig, foot 440 sewing machine contains: part 44 for mounting foot for attachment to the pressure rod 14 of the sewing machine; a push portion 446, which presses on the sewn product with a given clamping force, when the sewing needle 12 pierces; the groove 486 for directing element for directing a number of elements of the zipper through the passage through it of a number of elements; the axis 50 of the hinge that holds the swing arm 47 can be rotated in a plane parallel to the line of sewing with respect to part 44 to set the foot; and the axis 482, which holds a roller head with the possibility 480 rotation in a plane parallel to the line of sewing relative to the swivel bracket 447. As in the design shown in figure 2, the compression spring (not shown), which acts as a banana means for podpruzhineny groove 486 direction ELEH the clients to sewn product, located behind the openings 48 for the needle in the swivel bracket 447 and behind the axle 50 of the hinge.

With this design the tabs 440 sewing machine swivel bracket 447 can swing around the axis 50 of the hinge relative to the part 44 to install the pads, and roller head 480 can rotate relative to the swivel bracket 447.

Next will be described the operation versions with rotating roller head 480 on the front end of the swivel bracket 447.

The circular surface of the roller head 480, shown in Fig, always comes in contact with the surface of the tape fastener of the zipper 8 before sewing, so that when formed part of the flow seam roller cylinder 480 is rolling on the zipper 8. In the circular surface of the roller head 480 formed groove 486 for directing elements, and the groove 486 for items up and wraps a number of 9 items, by bending it into a U-shape. Therefore, even when the rotary bracket 447 tilted forward, or sewn product is pressed with a force of compression, the number of 9 items hidden fasteners can be raised.

Meanwhile, the present invention is not limited to the above-described variants of the design, but, of course, can be modified in various ways within the framework of the claims. For example, part 270 to drain element which can be formed in a groove 42 for directing elements of the first variant of the invention, or inclined surface 262 can be formed completely flat.

Industrial application

When using foot sewing machine corresponding to the present invention, hidden zipper can be sewn to a thick material, such as cloth and leather.

1. Foot (40) sewing machine, comprising:
part (44) for mounting foot for attachment to the pressure rod (14) of the sewing machine;
a push portion (46), which moves up and down together with part (44) for mounting feet, for compression sewn products, when the sewing needle (12) pierce; and
the groove (42) for directing elements, which moves up/down with respect to the part (44) for mounting feet, for the direction of the series (9) elements of the zipper (8) with a number of the inserted elements, characterized in that it further comprises:
swivel bracket (47), which has a groove (42) for directing elements and held part (44) for mounting feet can be rotated with respect to part (44) for mounting the legs to swing in a vertical plane parallel to the line (28) sewing, during sewing; and
banana means (52)located between the part (44) for mounting feet and swivel bracket (47), for podpruzhineny swivel bracket (47) to the sewn product relative to h and (44) to install the legs, and banana means (52) podruzamevaet swivel bracket (47) to sewn product, whereby part of the groove (42) for directing element directs part of the series (9) elements, even if the leg (40) of the sewing machine is in any position from the upper position and lower position.

2. Presser foot of the sewing machine according to claim 1, characterized in that the groove (42) for directing element has parallel side surfaces, open to sewn product.

3. Presser foot of the sewing machine according to claim 2, characterized in that the opening of the groove (42) for directing elements has zavarajivayushiy element part, which covers the edge portion for attaching items hidden clasp, forming it into a curved U-shaped and wraps edge portion for attaching items up to 90°angle.

4. Presser foot of the sewing machine according to any one of claims 1 to 3, characterized in that the cover part (46) is formed in a part of the swivel bracket (47).

5. Presser foot of the sewing machine according to claim 4, characterized in that it also contains:
the opening (48) for the needle, through which the sewing needle (12), and the hole for the needle is located in the cover part, and
part (270) to remove the elements to avoid landing in range (9) elements located in the groove (242) to guide elements on the rear side pishevaya part relative to the hole at back the Oia (48) for the needle.

6. Presser foot of the sewing machine according to any one of claims 1 to 3, characterized in that it also contains:
inclined surface (262), which is tilted upwards relative to the bottom surface of the swivel bracket (47), on the front end of the swivel bracket (47); and
the front inclined part (263), which performs motion for sewn product.

7. Presser foot of the sewing machine according to claim 6, characterized in that
surface (60) of the slip that comes in contact with the surface of sewn products, when part (44) for setting foot raised, and swivel bracket (47) is rotated in the direction of the sewn product action banana means (52), located at the front of the swivel bracket (47), and the width of the surface (260) of the slip is set smaller than the width of the pressure part (246).

8. Presser foot of the sewing machine according to any one of claims 1 to 3, characterized in that the rear part of the push part (246) is a rear inclined portion (264), which performs motion for sewn product.

9. Presser foot of the sewing machine according to any one of claims 1 to 3, characterized in that it also contains an elastic material, on which a spring (52) compression leaf spring or a similar tool as banana means (52).

10. Sewing machine, characterized in that it includes foot (40) sewing machine, comprising:
part (44) sustenance feet to attach to the pressure rod (14) of the sewing machine;
a push portion (46), which moves up and down together with part (44) for mounting feet, for compression sewn products, when the sewing needle (12) pierce;
the groove (42) for directing elements, which moves up/down with respect to the part (44) for mounting feet, for the direction of the series (9) elements of the zipper (8) with a number of the inserted elements;
swivel bracket (47), which has a groove (42) for directing elements and held part (44) for mounting feet can be rotated with respect to part (44) for mounting the legs to swing in a vertical plane parallel to the line (28) sewing, during sewing; and
banana means (52)located between the part (44) for mounting feet and swivel bracket (47), for podpruzhineny swivel bracket (47) to the sewn product with respect to part (44) for mounting feet, and banana means (52) podruzamevaet swivel bracket (47) to sewn product, whereby part of the groove (42) for directing element directs part of the series (9) elements, even if the leg (40) of the sewing machine is in any position from the upper position and lower position.



 

Same patents:

FIELD: textile, paper.

SUBSTANCE: sewing machine tab according to invention comprises the following components: part (44) for tab installation and fixation to pressing rod (14) of sewing machine; pressing part (46) for pressing of sewn item, when sewing needle (12) pierces; and slot (46) for direction of row (9) of zipper (8) elements by means of insertion of some elements in it. Besides sewing machine comprises the following components: rotary bracket (47), which is retained by part (44) for installation of tab with the possibility of rotation relative to part (44) and swings in vertical plane parallel to line (28) of sewing in process of sewing; and spring-loading facility (52) located between part (44) for installation of tab and rotary bracket (47) to spring-load rotary bracket (47) to sewn item relative to part (44) for tab installation.

EFFECT: invention provides for the fact that row (9) of zipper elements (8) may be directed, both when sewing needle (12) pierces and when seam is formed, so that thick cloth (6) and hidden zipper (8), which are difficult to sew to each other, may be accurately positioned and sewn to each other.

10 cl, 18 dwg

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