Dowel for fixing in hollow and solid building materials

 

The invention relates to a dowel for fixing in hollow and solid building materials. Dowel for fixing in hollow and solid building materials contains passing in the longitudinal direction of the spacer plate, decompresses when screwing spacer screw into the dowel. The spacer plate on the rear end are connected hiltebrand end anchor, designed for insertion through him spacer screw, and on the front end - hiltebrand tip of the dowel intended for screwing the spacer screw. In addition, the spacer plates are interconnected passing through the periphery of the dowel stretchable material. The tip of the dowel has angled slots. One knee of the slots has a slope in the direction of the thread pitch spacer screw, and the other knee - lift in the opposite direction. In the spacer screw is easily screwed into the dowel, increases the reliability of mounting the torsion stiffness of the dowel. 6 C.p. f-crystals, 11 ill.

The invention relates to a dowel for fixing in hollow and solid building materials containing passing in the longitudinal direction of the spacer plate, decompresses philsoophy the end of the dowel, designed for insertion through him spacer screw, and on the front end - hiltebrand tip of the dowel intended for screwing the spacer screw. Under hollow building materials refers to, for example, hollow blocks or slabs, behind which there is a cavity. Under massive construction materials refer, for example, concrete, etc.,

Such anchors themselves are widely known. (See for example, DE 1450983 A, DE 3330277 A1, US 3236145). They are usually made of plastic and in the middle part in the longitudinal direction of the spacer plates, separated from each other by slots. On the rear end of the spacer plates are interconnected hiltebrand the end of the dowel, and the front - hiltebrand tip of the dowel. The spacer screw is inserted through hiltebrand the end of the dowel and screwed into the tip of the dowel. To secure the dowels in massive construction material dowel inserted into drilled in massive construction material of the hole and the dowel is screwed spacer screw. Spacer screw pushes the spacer plate, i.e., spacer screw pushes the spacer plate and ankaret due to this, the dowel into the drilled in massive stroitelnie hole so to hiltebrand the end was in hollow building material. Then through the end of the dowel impose spacer screw, is passed between the spacer plates and screwed into the tip of the dowel. By screwing in the tip of the dowel spacer screw moves in the direction of the end of the dowel, and the spacer plate opens. Known in themselves two possibilities of spreading. The first is that the spacer plate in the proximity of the tip of the dowel to the end of the dowel bowed outwards and back cover of hollow construction material flush. Another possibility is that by screwing spacer screw the tip of the dowel rotates relative to the end of the dowel, resulting in the spacer plates are twisted one relative to another and create a knot education, clinging behind hollow building material.

FR 2776722 A1 famous dowel for fixing in hollow and solid building materials containing passing in the longitudinal direction of the spacer plate, decompresses when screwing spacer screw into the dowel, and the spacer plate on the rear end are connected wilsonianism tip of the dowel, intended for screwing the spacer screw.

Well-known anchors inherent disadvantage of poor guide steps for screw spacer screw can by screwing out the side through the slots between the spacer plates. Another disadvantage of the known anchors is their small torsional rigidity, which by screwing spacer screw leads to an elastic twisting the tip of the dowel relative to the end of the dowel. When screwing spacer screw by hand elastic cranking the edge of the dowel relative to the end of the dowel is that when the screwdriver go to "intercept", the tip of the dowel together with wound into him spacer screw again rotates back. The consequence of this is that spacer screw badly screwed into the dowel by hand.

The basis of the invention lies in the task of eliminating the above-mentioned disadvantages.

This task in the dowel for fixing in hollow and solid building materials containing passing in the longitudinal direction of the spacer plate, decompresses when screwing spacer screw into the dowel, and the spacer plate on the rear end are connected hiltebrand the end of the dowel designed to Vvedenskaya spacer screw, according to the invention is solved in that the spacer plates are interconnected passing through the periphery of the dowel stretchable material, while the tip of the dowel has angled slots, with one knee slots has a slope in the direction of the thread pitch spacer screw, and the other knee - lift in the opposite direction. For elongation of the material can be made thin and/or in the direction of the periphery of the dowel - wave. In the manufacture of dowels of stretchable plastic material is predominantly a single unit with spacer plates and is, therefore, of the same plastic as the rest of the dowel. Stretchable material made in this case, preferably thin in the form of a plastic film. By connecting the spacer plates in the direction of the periphery of the dowel according to the invention takes the form of a sleeve, closed at the direction of the periphery in the area of the spacer plates. This is a good guiding action for spacer screw, and prevents the exit spacer screw from the dowels on the side between the spacer plates even when the transverse load on the spacer screw. Another advantage of the compounds of the spacer plates in n which gives primarily the advantage that the tip of the dowel by screwing spacer screw less rotates with it, making spacer screw better screwed into the tip of the dowel. In addition, increased torsional rigidity has the advantage that the tip of the dowel when the torque reduction, i.e., for example, when catching screwdriver, less turns back. Due to this spacer screw, in particular by screwing spacer screw by hand, easier screwed into the dowel. Additionally dowel according to the invention has the advantage that the torque when screwing spacer screw after the start of the brakes in the hollow construction material is not so greatly reduced. The known spacer dowels torque decreases sharply when the fixing anchors in hollow building material spacer plate begins to bend or twist around one another. Due to the increased stiffness of the dowel according to the invention, due to the coupling of the spacer plates in the direction of the periphery of this effect, at least, less.

The effect was a sharp decrease in torque when screwing the spacer screw is a disadvantage, because it evokes a feeling that if the first material.

The end of the dowel has a larger transverse dimension than the dowel in the area of the spacer plates and the edge of the dowel. This embodiment has as its goal the achievement of a good landing anchors in hollow building material or in the oven by placing dowels in drilled holes, essentially, only his hiltebrand end, while the rest of the dowel is in the cavity. The cross section of the end of the dowel has a sawtooth contour, and teeth vertices oriented in the direction of screwing the spacer screw. This means that the end of the dowel has a radial surface, from the outer edge of which the contour line of the end of the dowel goes towards the direction of screw spacer screw spiral inward until the next radial surface. The radial surface oriented, therefore, in the direction of screwing the spacer screw. They form in soft building materials similarity supports, vdavlivaya in building material and forming a fuse from turning, which rigidly holds the dowel in the construction material by screwing the spacer screw. Needless to say, the radial surface need not be oriented exactly radially. Wnie contour of the end of the dowel forms a reliable fuse from turning in soft building materials, because the placement of the dowel in the hole drilled in soft building materials, greater transverse size of the end of the dowel compacts construction material surrounding the end of the dowel area, so vdavlivaya in building material radial surfaces obtain a good fit in the building material.

The channel in the dowel for the spacer screw is inside the edge of the dowels cross-section differing from a circular shape. The channel for the screw has, therefore, inside the edge of the dowels in different directions different transverse dimensions. Also this measure is used to adjust the dowels of different diameters spacer screws.

The channel spacer screw, at least inside the edge of the dowel is made flat.

The channel spacer screw made sociopathy.

The channel spacer screw has a shape of two intersecting slots.

The invention is explained in more detail below with the help shown in the drawing of the sample, which are:

Fig.1 - dowel, according to the invention, in perspective;

Fig.2 - dowel of Fig.1 in side view;

Fig.3 - dowel of Fig.1 in axial section;

Fig.4 is a view of the dowel of Fig.1 with the rear end;

Fig.5 is a view of the dowel of Fig.1 end serebrjanny in Fig.1-3 dowel 10, according to the invention, made of plastic, it has approximately the shape of a sleeve. Dowel 10 has a channel 12 (Fig.3) spacer screw (Fig.1-3 not shown), which passes axially through the anchor 10 and conically tapers in two places.

In the rear part of the dowel 10 has hiltebrand end 14, and the front - gilbourne the edge 16 and the edge 16 of the dowel is connected in one piece with the end 14 of the dowel the two next to each other and passing in the longitudinal direction of the spacer plates 18. The spacer plate 18 form a spacer area 20 of the anchor 10, extending from the end 14 of the dowel until its tip 16. In the direction of the periphery of the spacer plate 18 is connected between a stretchable material 22. Stretchable material 22 consists of the same plastic as the rest of the dowel 10, stretchable material 22 is a single part of the dowel 10. Stretchable material 22 is made in the form of a thin film 22, which connects the spacer plate 18 between them in the direction of the periphery (see section spacer area 20 in Fig.7 and 8). Thin film 22 has a waviness in the direction of the periphery. Thin film 22 as due to its waviness, and due to its small thickness and elongation of n is ke thin film 22 may be torn.

Hiltebrand end 14 of the dowel has a larger transverse dimension or diameter than the tip 16 of the dowel and the dowel 10 in the spacer area 20, which in the drawing is, however, difficult to see. In addition, hiltebrand end 14 of the dowel has a sawtooth contour, as it is seen in Fig.6. The end 14 of the dowel has two opposite radial surface 24 facing the direction of screw spacer screw (Fig.1-3 not shown). To the outer edges of the radial surfaces 24 are adjacent contour lines or contour surface 26, which pass towards the direction of screw spacer screw spiral inward to the respectively opposite radial surface 24. The radial surface 24 serve to prevent turning of the anchor 10 into the drilled hole by screwing the spacer screw.

Between these radial surfaces 24 of the end 14 of the dowels are held in the longitudinal direction of the dowel safety edges 28 from turning. Safety edges 28 from turning have a sawtooth cross-section, pointing in the direction of screwing spacer screw surfaces also form a radial surface 30 of the dowel 10.

Gilbourne the tip 16 is e 16 dowels in two places opposite to each other, and on the edge 16 of the dowel at an axial distance from each other made a few (three) slots 32. Angular slots 32 have knee 36, 38, and knee 36 has a slope in the direction of the thread pitch spacer screw (Fig.1-3 not shown), and the other knee 38 - climbing in the opposite direction. The rise of lap 36 does not necessarily have to coincide with the pitch distance of the screw, the ascent is only in the same direction.

Channel 12 for the screw is in the area of the end 14 of the dowel approximately circular cross-section, it narrows in the spacer area 20 to the two intersecting slots (Fig.7, 8) and is on the edge 16 of the dowel slot shape (Fig.9). This provides a good fit of the channel 12 to the spacer screws of different diameters.

The function of the dowel 10, according to the invention, explained below using Fig.10 and 11. In Fig.10 shows the fastening of the object 40 on the construction material 42 in the form of a plate. The anchor 10 is inserted into the drilled within the construction material 42 hole. Because of the larger transverse dimension of the end 14 of the anchor this end of the 14th hole extends and strengthens while surrounding the end 14 of the dowel construction material. At the same time, the end 14 of the dowel its sawtooth contour (Fig.6) is pressed into a building material 42, and radial powergroup 44 together with him.

After insertion of the dowel 10 is provided with a drilled hole fixed object 40 keep on building material 42 in the form of a plate, spacer screw 44 is injected through the object 40 and screwed into the dowel 10. This thread 46 spacer screw 44 cut into the edge 16 of the dowel and is engaged with the knee 36 angular slots 32 with the rise in the same direction as the thread pitch spacer 46 of the screw 44. Knee 38 angular slots 32 with the rise in the opposite direction, provide axial extension of the tip 16 of the dowel, so that the axial distance between the slots 32 adapted to step the thread 46 of the screw. In combination with the flat on the tip 16 of the dowel sociopathy channel 12 for screw angular slots 32 cause a good fit of the tip 16 of the dowel diameter respectively used spacer screw, and also to step thread 46 of the screw.

When screwing in and tightening the securing screw 44 pulls the tip 16 of the dowel in the direction of the end 14 of the dowel, and the distance between tip 16 and the end 14 of the anchor is reduced. When this spacer plates 18 are twisted in the form of a knot around one another, so that the spacer plate 18 of the anchor 10 engage the back flush for building material 42 in the form of Plimsoll strength, for example in the drywall. Film 22 (Fig.1, 2, 7 and 8), connecting the spacer plate 18 in the direction of the periphery, causing high torsional stiffness of the dowel 10. Film 22 oppose turning of the edge 16 of the dowel relative to the end 14 of the dowel by screwing and tightening the spacer screw 44 and prevent due to this, in particular, rotation of the tip 16 of the dowel back when screwing spacer screw 44 from the hands of the screwdriver has to go to intercept. In addition, the film 22 to prevent sharp decrease in torque spacer screw 44 after the start twisting spacer plates 18 around one another. This reduction in torque would cause the feeling spacer screw 44 is pulled out of the anchor 10, or the last torn from a building material 42 and the bad Sankaran.

In Fig.11 shows the anchoring of the subject 40 in the massive construction material 48, such as concrete. Here the spacer dowel 10 is inserted in a known manner into the drilled in massive construction material of the hole. The object 40 is put to the surface of bulk material 48, spacer screw 44 is inserted through the object 40 and screwed into the dowel 10. Spacer screw 44 extends spacer plates 18 and lasting 18 do not prevent the thin film 22, connecting the spacer plate 18 in the direction of the periphery, because they are thin and are wavy and therefore tensile in the direction of the periphery. Thin film 22, which connect the spacer plate 18 in the spacer area 20 in the likeness of the sleeve, preventing the exit spacer screw 44 between the spacer plates 18 on the side of the channel 12 by screwing. This danger occurs without thin films 22, in particular, when the spacer screw 44 is loaded with the object 40 in the transverse direction. Flat sociopathy channel 12 for screw and angular slots 32 also provide a firm and unyielding massive construction material 48, such as concrete, screwing spacer screw 44 with a relatively low torque.

Claims

1. Dowel for fixing in hollow and solid building materials containing passing in the longitudinal direction of the spacer plate, decompresses when screwing spacer screw into the dowel, and the spacer plate on the rear end are connected hiltebrand end anchor, designed for insertion through him spacer screw, and on the front end - hiltebrand tip of the dowel, intended for using the Wallpapers passing through the periphery of the dowel stretchable material (22), thus the edge (16) of the dowel has angled slots (32), and one knee (36) of the slots (32) has a slope in the direction of the thread pitch spacer screw, and the other knee (38) - the rise in the opposite direction.

2. Dowel under item 1, characterized in that the end (14) of the dowel has a larger transverse dimension than the plug (10) in the area of spacer plates (18) and points (16) of the dowel.

3. Dowel under item 1, characterized in that the cross-section of end (14) of the dowel has a sawtooth contour, and teeth vertices oriented in the direction of screwing spacer screw (44).

4. Dowel under item 1, characterized in that the channel (12) in the anchor (10) for stud bolt (44) is inside the edge (16) of the dowel cross-section differing from a circular shape.

5. Dowel under item 1, characterized in that the channel (12) spacer screw (44), at least inside the edge (16) of the dowel is made flat.

6. Dowel under item 5, characterized in that the channel (12) spacer screw (44) is made sociopathy.

7. Dowel under item 4, characterized in that the channel (12) spacer screw (44) has the shape of two intersecting slots.

 

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