Woven belt shock absorber to suppress impact load
FIELD: textile, paper.
SUBSTANCE: invention relates to improvement of woven belt shock absorbers to suppress impact load by absorption of kinetic energy in case of high-speed loading. Woven belt shock absorber for suppression of impact load comprises two background layers arranged by weaving of warp and weft threads, and connecting warp threads embedded serially into each of layers to form cells between them. Section of weft thread forming in changeover from one background layer into the other has length more than length of section from connecting warp threads between background layers. All specified sections of weft thread are arranged at least at one lateral side of belt and form sagging weft pieces free of warp threads and changing from layer into layer, protruding over belt width and forming stitch edge similar to fringe.
EFFECT: increased uniformity of braking force, which provides for reliability of operation.
2 cl, 4 dwg
The invention relates to improvements in woven tape absorbers for damping impact load due to the absorption of kinetic energy at high speed loading. Such shock absorbers are used in safety belt builders, installers high-altitude, treetop and mountain climbers, suspensions parachute lines, including those used in the dropping of heavy equipment, brake grid devices for emergency stopping of vehicles and aircraft carrier-based aircraft, tow ropes and other devices operating in the conditions of occurrence of sudden shock loads that require repayment of the kinetic energy at a level that prevents or greatly reduces the chance of injury to human or mechanical damage technical objects.
In the prior art woven tape absorbers for damping impact load, the principle of which is based on providing successive destruction of the elements connecting the bearing (power) tape, conditionally divided into four basic types.
The first type are woven tape absorbers, representing at least two folded carrier tape, stitched sewing threads across tapes. In such absorbers destructible connecting elements of load-bearing tapes are sewing CTE is key. The technology of manufacture of this type of shock absorbers requires special sewing equipment, matching sewing thread and sewing mode, reducing the possibility of excision put power strips when flashing. The prior art dampers of the type described reflect the following, the most typical earlier patented invention (foreign patents and copyright certificates of the USSR):
Pat. UK No. 407838, 1934; U.S. Pat. UK No. 2292782, 1996; U.S. Pat. Germany No. 4005563, 1991; U.S. Pat. U.S. No. 1935339, 1933; U.S. Pat. U.S. No. 3937407, 1976; U.S. Pat. U.S. No. 3804698, 1974; U.S. Pat. U.S. No. 3074760, 1963; U.S. Pat. U.S. No. 4100996, 1978; U.S. Pat. U.S. No. 3444957, 1969; U.S. Pat. U.S. No. 5174410, 1992; U.S. Pat. Canada No. 2480609, 2006; international publication WO 0247764, 2002; U.S. Pat. Japan No. 40-49978, 1992.
The second type consists of textile absorbers, in which instead of stitching using a separate connecting elements connecting carrier tapes according to the type of the node, tightening the belt or harness from tearing or slipping along the tape during application to the ends of the tapes power load, Pat. France No. 2851924, 2004, or form a stacked-in loop power tapes looped elastic areas, lengthening under load, Pat. U.S. No. 6085802, 2000.
The third type are first developed in the USSR woven absorbers, representing two teletone looped tape loop which employees torn elements, consequently povezani between a type of knitted weave, auth. mon. The USSR №1147412, 1985; ed. mon. The USSR №1194428, 1985; ed. mon. The USSR №2023071, 1994. Woven absorbers of this type do not have the disadvantages sewn together, so as not to have torn sewing stitches, also provide damping of shock loads on the estimated thresholds of load application, but require manual connection of stitches with knitting needles.
The fourth type consists of woven textile absorbers, power (bearing) of the tape which are interconnected in the process of weaving the overall torn when the application loads, the warp threads that extend from a tape in the tape (from layer to layer), ed. mon. The USSR №937558, 1982; ed. mon. The USSR №1607829, 1990; ed. mon. The USSR №1172954, 1985; U.S. Pat. Japan No. 58-220845, 1983. These sources the technical nature relevant and are the most similar analogues to the claimed invention, as torn elements in each of them serve the warp threads, forming in the process of weaving together with bearing strips single woven piece. Manufacturing technology telnetting damper on the principle of weaving coupons representing repeated along the length of the strip semi-finished products of a given shape, the most productive and provides only the subsequent cutting down from the loom long tape to separate the coupons and the stitching on the edges of the cut pieces of leprosy mounting, thus obtained ready-to-use textile absorber.
The closest of these analogues is the invention described in the ed. mon. The USSR №1172954 and selected as the prototype for most of the matching essential attributes. In the prototype when using woven tapes made on odnozadachnoy the loom, the absorption of the kinetic energy is not only due to the destruction of connective main thread, but due to the destruction of indigenous weft threads on the site of transition from one background layer to another. If the length of this section is equal to or less than the length of the area formed by connecting the main threads in the transition from one background layer to another, the weft thread can be loaded and break down sooner than the area of connection of the main threads of this cell. Therefore, the loading of this weft yarn occurs at the site of the background layer to its maximum loading. Therefore, the weft thread can quite easily stand out from the background layer, which in its width, and, therefore, reduce its carrying capacity, and may result in uneven braking effort.
The objective of the invention is to remedy these disadvantages and provide a technical result as increasing the uniformity of effort is Imogene due to the discrete redistribution application tearing efforts to the warp and weft threads with the increase in the carrying capacity of the background layer by eliminating the ease of pulling the weft yarn from the background layer and tightening its width under the influence of the power load.
The task and the technical result is achieved by the fact that in the woven tape absorber for damping impact load that contains two background layer, performed by the interweaving of indigenous primary and weft threads, and connecting the main thread, earned sequentially in each of the layers with the formation between cells, the site of root filling thread formed at the transition from one background layer to another, has a length greater than the length of the site from the main connective threads between the two background layers, all of these areas indigenous weft yarns located in at least one lateral side of the ribbon and form passing from layer to layer sagging and free from warp weft drawing, projecting beyond the width of the tape and forming a similar looped fringe edge. Plot the root filling thread formed at the transition from one layer to another, may consist of two indigenous weft threads, and formed their hinge edge may be located on both sides of the tape or alternate along the length of the different sides of the tape in a checkerboard pattern. The essential characteristics of the shock absorber provides increased energy consumption and reliability of the shock absorber in the manufacture of woven tape on the od of chelnochno loom.
When the site root filling thread formed at the transition from one background layer to another, has a length greater than the length of the section from the junction of the main threads in the transition from one background layer to another, then this section of the weft yarn in the form of relatively sagging broaches (looped behrampada edge) starts to be loaded after filling and destroyed at least one transition area connecting the basics from one background layer to another. Therefore, if, for example, the braking force dampening device 300 kgf, the destruction of the weft yarn will occur when the area of the background layer will be loaded up to 300 kgs. Under this condition the weft thread will be firmly clamped in the background layer with effort, excluding its uncontrolled stretching and contraction of the width of the background layer of the tape, which, in turn, significantly improves the reliability and uniformity of braking effort when working cushioning device.
Using the above opportunity durable fastening of the weft yarn in the background layer in the process damping device, it seems promising to use this technique to increase the intensity of the device due to the simultaneous loading and fracture more weft threads. This m what should be achieved, if the section of the weft yarn, which is formed at the transition from one background layer to another, consists of at least two indigenous weft threads.
On figa) and (b) schematically shows a side view of the woven belt shock absorber;
on figa) and (b) is a longitudinal section of a woven tape of the shock absorber;
figure 3 - side view (end) hand woven shock absorber;
figure 4 - diagram of the damping load from the extension.
In woven tape damper position 1 marked background layers, 2 - connecting the main thread; 3 - indigenous weft threads and plot in the transition from one background layer to another. From figure 1 it is obvious that if the site root weft yarn 3 more section 2 connecting the main filaments formed in the transition from one background layer to another (figa), when the loading of the shock absorber force F section 2 of the connector main thread will collapse sooner than will be supplied 3 phase weft yarn. Therefore, the site root weft yarn 3 will be loaded when the background layers in their location will have a maximum load, providing a strong pinching the weft yarn, excluding its uncontrolled stretching (figa).
On figa) and (b) shows a longitudinal section of woven tapes of the absorber, where 1 - background layers; 2 - connecting the main thread; 3 - radical filling the thread and the site of her formed at the transition from one background layer to another. As can be seen from tiga, plot indigenous weft yarn 3 consists of one thread and PIGB - two. Thus, when the number of indigenous weft threads in this area can significantly increase the braking force when the work of the cushioning device and, consequently, increase its intensity.
If section 3 root filling thread will be of length two or more times the site 2 from the junction of the main threads that technologically it is possible, sections 3 indigenous weft threads will be loaded after filling and destroyed at least two phase 2 of the connector main thread. This chart load-elongation" operation shock absorbing device will have the appearance shown in figure 3. Such a smooth output cushioning device at the rated load, of course, is always preferable.
Figure 3 shows the view from the side (face) hand woven absorber, where a and B - background layers of woven tape, 2 - connecting suspend the main thread, 3 - torn areas of indigenous weft threads formed in the transition from one background layer to another and forming sagging and free from warp weft drawing, projecting beyond the width of the tape and forming such BA the Roma hinge edge.
Woven belt shock absorber for damping impact load works on the principle of their counterparts. When a load is applied to the ends of the tape (the background layer) stress rupture sequentially transmitted to torn areas of main and weft threads, starts consecutive rupture of the filaments and the value of the initial force (load) smoothly increases to a given level as the damping of the kinetic energy, as illustrated in figure 4 a diagram of the damping load from the extension.
Samples woven belt shock absorber for damping impact load produced on the loom brand t-2-60 equipped semisopochnoi carriage with electronic control that allows you to produce tapes with repeats on a duck to 15000. For the manufacture of shock absorbers used nylon thread 93,5 Tex ×2.
Tests of this model shock absorber was carried out according to GOST 12.4.222-99, which is an authentic European standard EN 355-92: metal a weight of 100 kg is dropped from a height of 4 m, the braking Force when the shock absorber should not exceed 6 kN, and the braking distance should not exceed 1.75 m, i.e. a safety area should not exceed 5,75 m
The prototype woven belt shock absorber when the test showed the following results:
- load when braking cargo was 4.1 kN;
- tormoznoy path when the absorber was 1.1 m
Analysis of the test results allows to conclude the following:
1. With increasing braking force to up to 6 kN estimated braking distance should be 0,8-0,9 m
2. The braking force of 6.0 kN can afford to use a safety belt with a halyard length greater than 2 m, set by the standard, or allow the use of a safety belt with a new shock absorber workers weighing more than 100 kg
1. Woven belt shock absorber for damping impact load that contains two background layer, performed by the interweaving of indigenous primary and weft threads, and connecting the main thread, earned sequentially in each of the layers with the formation between cells, characterized in that the plot of root filling thread formed at the transition from one background layer to another, has a length greater than the length of the site from the main connective threads between the two background layers, all of these areas indigenous weft yarns located in at least one lateral side of the ribbon and form passing from layer to layer sagging and free from warp weft drawing, projecting beyond the width of the tape and forming a similar looped fringe edge.
2. Woven belt shock absorber according to claim 1, characterized in that the plot of root filling thread formed at the transition from one layer to another,may consist of two indigenous weft threads, and formed their hinge edge may be located on both sides of the tape or alternate along the length of the different sides of the tape in a checkerboard pattern.
FIELD: automotive industry.
SUBSTANCE: invention relates to automotive industry, particularly to car body. Proposed body with power absorbing element comprises tubular section produced by roller forming from steel band. Edges of the latter are welded together to arrange welded seam in concave camber (9a) of aforesaid tubular section. Tubular section lengthwise end is fitted in the body tubular part open end.
EFFECT: higher reliability, simple mounting, smaller sizes and lower costs.
9 cl, 11 dwg
SUBSTANCE: plastic shock absorber contains parallel bases and pre-bent deformable rods arranged there between, uniformly along the circumference. The rods are made up of rectilinear and smaller-length pre-bent sections with smooth transition on bents. The rod rectilinear ends are fixed at the shock absorber parallel bases. The pre-bent rod sections are arranged in the matrix chutes bent to mate the rod bent shape. The matrix has the bearing surfaces and through holes, axial or peripheral, parallel to the shock absorber axis and enclosing the bearing inserts by their surfaces.
EFFECT: multiple use of plastic shock absorber recovering initial shape after rods deformation and higher efficiency of specific load at dynamic loading.
2 cl, 8 dwg
FIELD: engineering industry.
SUBSTANCE: device consists of the internal and external tubular profiles connected in the upper part with plug, executed in the form of the sleeve. Vibration isolator is executed in the form of a twisted spring with a flange. Viscoelastic envelope is set in a clearance between tubular profiles and connected mainly by method of hot vulcanization to the sleeve, spring and flange. Spring is connected fixed to the sleeve and flange by means of the screw grooves executed on them and fixed in junctions with them by fixing elements which are connected mainly by a method of hot vulcanization to a viscoelastic envelope.
EFFECT: development of operation possibilities; support of adaptability to manufacture of a product.
FIELD: mechanical engineering.
SUBSTANCE: impact damping apparatus has plastically deformed rod-like member connected to supporting members positioned respectively on object to be protected and protective object. Plastically deformed rod-like member is passed through openings provided through supporting members. Supporting members connected to object to be protected and supporting members connected to protective object are positioned lengthwise of plastically deformed rod-like member in next-but-one arrangement. Plastically deformed rod-like member is formed as set of joined links which are connected with one another so that upon application of impact force adjacent links move relative to one another along central axis of plastically deformed rod-like member. Adjacent supporting members are equally spaced from one another.
EFFECT: increased efficiency by optimized force characteristics.
11 cl, 9 dwg
FIELD: mechanical engineering; shipbuilding.
SUBSTANCE: invention is designed for flexible fastening of equipment and instruments of ships and it can be used in other industries where antishock effective protection of equipment from external vibrations and shocks should be provided. Proposed rubber-metal shock absorber contains base, rod, two support rubber bushings, fluoroplastic gasket installed between rod and support rubber bushings, thrust rubber bushings and steel plates. Moreover, shock absorber contains fluoroplastic gaskets installed between steel plates and between upper and lower faces of intermediate housing or foot of equipment and which are pressed-in into equipment foot or hole intermediate housing. Shock absorber includes also protective polyurethane ring polyurethane washers installed and pressed-to in base. Invention provides effective protection of equipment from external vibrations and shocks, prevents transmission of natural sound vibrations of equipment to foundation and surrounding structures, ensures strength and long service life of shock absorbers and forecasting of their parameters over all axes and in time, limits displacement of equipment relative to foundation at ship rolling and at impact loads, provides possibility of simple ceiling and deck fastening of equipment with designed inner prevention of breaking off of equipment from place in case of damage of rubber parts.
EFFECT: improved protection of equipment.
1 tbl, 2 dwg
FIELD: mechanical engineering.
SUBSTANCE: proposed tie-rod has bar (2) with connecting members (3, 4) at each end; its geometric axis passes through both connecting members (3, 4). Bar (2) is provided with safety zone (5)in form of reduced cross section between first section (6) of bar (2) coupled with first connecting member (3) and second section (7) of bar (2) coupled with second connecting member (4). Safety zone(5) is broken when force of tension applied to tie-rod exceeds the preset threshold magnitude; it is provided with devices (10, 11, 14) for making two sections (6, 7) of bar (2) nondetachable in case of breaking of safety zone (5). Thus, parts to be connected remain intact in case of excessive tensile force and connection of parts is ensured after breakdown of tie-rod.
EFFECT: enhanced efficiency and reliability.
7 cl, 5 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to protection devices of vehicles in case of collision and it can be used as front and rear bumpers of different passenger cars, microbuses and other vehicles. Proposed buffer connected to vehicle carrying structure includes outer skin to which layer of elastic material is connected, and support surface in form of preset-curvature U-shaped section to outer surface of which energy absorbing devices are connected, being uniformly spaced relative to each other and including, each, definite number of interconnected energy absorbing members, each being mirror reflection of the and made integral from section of round metal rod and including base, bridge, strut, additional bridge and additional strut arranged in relatively perpendicular planes. Bases of energy absorbing devices are connected to support surface, all bridges being torsion bars, are arranged vertically, struts are arranged horizontally and unitied by guide plates, additional struts are arranged horizontally and connected to plates of movable bases. Struts and additional struts of energy-absorbing devices of left-hand and right-hand halves of buffer are pointed outwards relative to support surface and are arranged at definite angles in different directions from middle to edges of buffer. Buffer contains central shock-absorbing device including two hollow bent leaf springs made integral and connected to support surface and bent plate connected to said springs. Leaf springs are arranged at edges of buffer, being connected to support surface and extreme energy absorbing devices. Solid foamed material blocks and parts are arranged in spaces between energy absorbing devices and leaf-springs.
EFFECT: simple design, high absorbing capacity, considerable stroke and stable shock absorbing characteristics which can be set within wide limits with possibility of reuse of construction and complete restoration of preset characteristics.
2 cl, 8 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to collision protective devices and it can be used as front and rear bumpers of different passenger cars, minibuses and other vehicles. proposed buffer to be connected to bearing structure of car has common outer sheathing and central and side sections whose support surfaces are connected to each other through connecting energy-absorbing devices with leaf springs. Main energy-absorbing devices are connected to support surfaces of sections being uniformly spaced and including definite number of interconnected absorbing mirror-like members. Each energy-absorbing member is made integral from section of round metal bar and provided with base, bridge and brace arranged in relatively perpendicular planes. Braces of main energy-absorbing devices are arranged horizontally, being connected to plates of movable bases made integral with leaf springs. Braces of main energy-absorbing devices of left-hand and right-hand parts of buffer are pointed to different sides, respectively, in directions from middle to edges of buffer. Buffer is furnished additionally with energy-absorbing devices made in similar manner, connected to bearing structure of car and interacting through braces with rear surface of corresponding side section of buffer.
EFFECT: high energy absorbing capacity and stability of shock absorbing characteristics with possibility of repeated use.
3 cl, 8 dwg
FIELD: mechanical engineering.
SUBSTANCE: shock-absorbing device comprises housing made of a closed chamber filled with deformable members. The deformable members are made of hollow unclosed members whose strength is less or equal to that of the housing and glass hollow microscopic spheres. The inner spaces of the closed chamber and hollow members are filler with the glass hollow microscopic spheres.
EFFECT: enhanced efficiency.
FIELD: transport engineering; automobile protection means.
SUBSTANCE: proposed bumper connected to load-bearing structure of automobile includes two sections arranged at a distance from each other and energy-absorbing device adjoining each other. Each energy-absorbing device consists of two interconnected energy-absorbing members, each being mirror image of the other and made as integral part from cut of round metal bar including base, additional base, near, additional and far bridges interconnected by main and additional braces and located in relatively perpendicular planes. Bases of energy-absorbing members are arranged vertically and connected to support surface, bridges of energy-absorbing members are arranged horizontally coaxially relative to each other, main and additional braces of energy-absorbing members of each section are arranged lower than support surface being inter connected by rigid plates. Each section of bumper is provided with guard made up of interconnected vertical and horizontal tubular members connected to additional bases of energy-absorbing devices and shock-absorbing devices connected to tubular members of guard and load-bearing structure of automobile and made integral of two leaf springs. Bumper includes outer sheathing with thinning sections to provide order destruction in preset places and elastic resilient members in form of cylinders connected to tubular members of guard.
EFFECT: simplified design, provision of high energy-absorbing properties and stability of shock absorbing, possibility of repeated use of structure.
3 cl; 6 dwg
FIELD: textile, paper.
SUBSTANCE: base made on the basis of huckaback weave of yarns comprising polyester and cotton or rayon fibers and antimicrobial polyester fiber with an average size of silver particles of 10-15 nm and obtained in a colloidal silver solution or a colloidal solution of silver and copper, with a ratio of polyester and antimicrobial polyester fibers 1:0.1-3.0, with the surface density of 70-240 g/m2 and a filling ratio of 0.65-1.44.
EFFECT: high air-, vapour permeability, water-yielding capacity while maintaining antimicrobial activity in the operation and expansion of range of textile materials.
1 cl, 3 tbl
FIELD: textile, paper.
SUBSTANCE: some of the main threads or weft threads include at least one protruding thread and two coloured yarns of different colours. The protruding thread has a lot of protruding sections made on the fabric surface. Both colored threads are located near and on both sides, respectively, from the protruding thread, at that both colored threads have many colored sites made, respectively, on the fabric surface. If you observe the fabric from different sight angles coloured sites interfere with a protruding site that provides a variety of changes of fabric colours within of eyeshot.
EFFECT: provision of colour changes within of eyeshot when observed from different sight angles or angles of cloth positions.
5 cl, 6 dwg
FIELD: textile, paper.
SUBSTANCE: fabric made in warp and weft of twisted strands of the combined mixture of polyparaphenylene terephtalamide fiber and cotton fiber. As polymer fibers spun yarns heat-resistant fiber or mixed fiber is additionally used at a ratio of the components of tissue in mass. parts: 10-90 mass parts of polymer fiber, and the rest (till 100 mass parts) is cotton fiber. Linear density of elementary fiber yarn is 0.08-0.66 tex. Linear density of the fabric is from 10 to 100 tex. The ratio of the density of warp and weft is 0.52-2.11. The fabric contains a twisted combination yarn of linear density 18.8-172.8 tex with a twist 25-480 twists/m, the in warp the number of threads per 10 cm is from 80 to 400 and in weft the number of threads per 10 cm is from 80 to 500. The fabric is made with general weave. Fabric is produced as a tape or cloth.
EFFECT: improvement of operational characteristics of parts of friction while increasing resource exploitation; in the process of products use increase of vertical damping ability of alternating loads, improving the stability of the coefficient of friction when sliding on hardened steel as a counterface, and the possibility of reducing the intensity of linear wear of counterface material.
FIELD: textile, paper.
SUBSTANCE: combined satin weave glass-synthetic fabric of constructional purpose contains in its basis aramid yarns and glass fibers in weft. Between aramid and glass yarns multifilament conductive yarns are stacked, made from poly-ε-caprone-amide fibers coated with a continuous layer of conductive composite based on fluorinated polyolefin and carbon black taken in a weight ratio of 1:0.6 to 1:0.8. At that the weight ratio of poly-ε-caprone fibers and a layer of conductive composition is from 55:45 to 60:40. Proportion of multifilament conductive yarns and glass and aramid fibers is from 1:7 to 1:10.
EFFECT: increase of operational reliability and operational life of coil-winding products.
2 cl, 2 dwg, 2 tbl
FIELD: textile, paper.
SUBSTANCE: braided safety cord of threshold operation is arranged by plain weaving of background warp and weft threads, and additionally comprises at least two ruptured power-consuming groups of warp threads evenly distributed along its width. Additional power-consuming groups of warp threads consist of even number of textile threads identical in raw material composition and linear density of textile threads, which are arranged in pairs, and are woven with each other oppositely, forming woven elements of repp weaving with repeat length from 2 to 8 wefts. Threshold of cord operation is determined by the following formula: Pac=P1[1+0.9(n-1)], where Pac - threshold of actuation in kgf, P1 - total rupture load of one group of threads of additional warp in kgf, n - total number of groups of power consuming systems of various weaving warp threads. Total rupture load of background warp threads at least 20 times exceeds value of cord threshold operation. Full repeat of cord along warp equals doubled product of repeats in all systems of various weaving warp threads it contains. Weft weaving repeat equals least total multiple of weft repeats of all power-consuming systems of warp threads contained in cord.
EFFECT: invention provides for an insignificant displacement of secured body in case of threshold operation.
1 cl, 2 dwg
SUBSTANCE: invention can be used in making electromagnetic a camouflage garment, particularly in the infrared spectrum, as well as in garments for industrial purposes, specifically mobile shelter (tents) which provide comfortable microclimatic conditions. Material which reflects infrared radiation contains a textile base, a metallised and microporous membrane layer. The textile base used is polyester textile material with a water-repellent impregnation. The metallised layer is titanium nitrate and the microporous membrane layer is made from thermoplastic polyurethane resin and is placed between the textile base and the metallised layer. Titanium nitride is deposited on the microporous membrane layer on an atomic-molecular level in an amount of 1-2 g/m2, and the textile base may have a camouflage pattern.
EFFECT: high level of protection of a biological object owing to higher infrared radiation reflection power of the material.
2 cl, 3 dwg
FIELD: textile, paper.
SUBSTANCE: basic fabric design contains the following: at least 28 shoots (1…28) arranged in staggered order and forming 8 columns (C1…C8), containing alternately 4 and 3 shoots, at the same time shoots are arranged at 7 levels (N1…N7); at least 12 warp threads (A…L) arranged in at least 4 displaced parallel plans, at the same time each of these planes contains at least 3 parallel shoots, which follow a separate way from one plane to the other.
EFFECT: good resistance to exfoliation, impact strength and resistance to compression with good ability to deformation, and increased mechanical characteristics.
4 cl, 1 dwg
FIELD: textile industry.
SUBSTANCE: multiaxial fabric comprises multiaxial fabric base in the form of continuous loop wound along spiral, which is folded along the first crease edge and the second crease edge to form the first layer and the second layer. Specified main fabric comprises the first strip woven by specified method from threads of machine direction (MD threads) and threads of direction reverse to machine one (RMD threads), so that gap between one pair of adjacent MD threads differs from gap between other pair of adjacent MD threads or so that gap between one pair of adjacent RMD threads differs from gap between other pair of adjacent RMD threads.
EFFECT: invention provides for development of fabric having reduced interferential pattern and improved uniformity of dehydration.
22 cl, 23 dwg
FIELD: textile industry.
SUBSTANCE: ribbon is woven with at least one first (right) woof thread and at least one second (left) woof thread. Both woof threads at both sides of ribbon are entered into one and the same shed, are wrapped around woof holder to form reverse loops of woof thread, are held by woof holders substantially until replacement of shed, and then after replacement of shed are removed from holders of woof by reed and are attached to ribbon trimming.
EFFECT: development of belt ribbon with maximum transverse rigidity and soft edge parts.
24 cl, 19 dwg
FIELD: personal use articles.
SUBSTANCE: multilayer insole consists of upper woven layer facing foot, lower woven layer adjacent to inner side of shoes and middle layer between them, which is manufactured with number of middle layers, made by plain weave from flax threads each, consisting of horizontal and vertical layers, not more than 4. Besides vertical middle layer is connected to lower horizontal layer by weaving of common woof threads of lower horizontal layer and vertical middle layer with warp threads of lower horizontal layer and vertical middle layer, and with n-th horizontal middle layer as a result of weaving of common woof threads of n-th horizontal middle layer and vertical middle layer with warp threads of n-th horizontal middle layer and vertical middle layer. With upper horizontal layer - as a result of weaving of common woof threads of upper horizontal layer and vertical middle layer with warp threads of upper horizontal layer and vertical middle layer, so that upper layer facing foot in heel part has horizontal surface formed by 48 woof threads, 100 warp threads of upper layer and 100 warp threads of middle vertical layer. Curvilinear contour of part is formed by three rectangular ledges at inner side and three rectangular ledges at field side with t number of woof threads along height of vertical middle layer, where t is selected from 2 to 14; and from warp threads for each ledge in areas of bevels for inner and field sides of heel parts, where c=6, via b woof vertical layers. Where b=4 and a warp threads between inner and field sides of heel part, where a=76; and d woof vertical layers of field side of heel, waist and toe parts, where d=176. In toe part it has horizontal surface formed by 104 woof threads, 140 warp threads of upper layer and 140 warp threads of middle vertical layer. Curvilinear contour of part is formed by five rectangular ledges at inner side with s number of woof threads along height of vertical middle layer, where s is selected from 2 to 9; and with c, f, c, f warp threads for each ledge in area of bevel for field side of toe part, where c=6, f=12, via e, g, e, b of woof vertical layers, where e=8, g=12, b=4, and three rectangular ledges from warp threads for each ledge in area of bevel for inner side of toe part, where c=6, via b woof vertical layers, where b=4; and h warp threads between field and inner sides of toe part, where h-90, and i woof vertical layers of inner side of toe part and waist parts, where i=84 with s, r number of woof threads along height of vertical middle layer, where s is selected from 2 to 9, and r is selected from 2 to 10. In waist part there is a horizontal; surface made by 96 woof threads, 140 warp threads of upper layer and 140 warp threads of middle vertical layer, curvilinear contour of which is formed by three rectangular grooves at inner side with o, p, q, r number of woof threads along height of vertical middle layer, where o is selected from 2 to 13; p is selected from 2 to 12; q is selected from 2 to 11; r is selected from 2 to 10; and with f warp threads for each groove in area of bevel for inner side of waist part, where f=12 via j, k woof vertical layers, where j=16, k=24; and 1 woof vertical layers of inner side in waist and toe parts, where l=68, besides number of woof threads along height of vertical layer is not more than 14.
EFFECT: improved manufacturability of process as a result of simultaneous running of layers and their connection by method of single-shed figured dobby weaving in textile machinery with simultaneous increase of insole service life and adjustable elasticity of insole, which takes into account features of human foot structure in process of wearing.
3 cl, 5 dwg
FIELD: salvage equipment.
SUBSTANCE: proposed invention relates to methods for taking people down from buildings. Method consists in the fact that two flexible power elements are connected to each other by connecting elastic threads to form gap permanent in length between flexible power elements along whole length of flexible power elements. At the same time seam is arranged, parallel to each flexible power element, and all elastic threads are arranged in a single plane. Object is suspended onto free end of the first flexible power element, free end of the second power element is fixed in point, from where the first descent should start, several connecting elastic threads are stretched until broken, object is taken down. At the same time free end of the first flexible element is moved along surface of the second flexible power element.
EFFECT: emergency evacuation of cargo and people from high-elevation structures in case of fires or natural disasters.
8 cl, 5 dwg