RU2398138C2 - Combination of assembly and loop elements for fastening loop element to frame or flap - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: combination of assembly element and loop element for fastening loop element to frame or flap contains attachment part secured to frame or flap. A threaded extension rotating around its lengthwise axis is positioned on the attachment part. On the loop element there is made a threaded orifice responsive to the threaded extension for screwing it in. The threaded extension is fixed on the attachment part in the direction of lengthwise axis and is screwed into the threaded orifice upon fixing the attachment part to the frame or flap.

EFFECT: increased reliability of fastening and simplified adjustment of loop element with frame.

15 cl, 21 dwg

Description

The invention relates to a combination of a mounting element for fixing fittings, in particular, hinged elements to a frame or sash, with a fastening part being attached to the frame or sash.

From DE 20218699 U1, a device is known for attaching hardware elements to a multi-chamber profile of a frame or sash. It has a mounting screw and a fixing screw, and the mounting screw contains an external thread of such a length that allows it to pass through several walls of the profile with hollow chambers when screwing. At the rear end in the direction of screwing, the mounting screw has a support flange. In addition, an internal thread is provided at the rear end into which a fixing screw is screwed. To fix the hardware element, the fixing screw is screwed into the hollow chamber profile until the support collar reaches the outer wall of the profile. Then, the hardware element is superimposed, which should have a center hole corresponding to the outer circumference of the support flange, after which it is fixed by screwing the fastening screw into the internal thread.

Although the specified device provides reliable fastening of the hardware element, including when installing frames or flaps on hollow chamber profiles, due to the application of holding forces to several profile walls, the drawback is that to align the hardware element in the perpendicular direction relative to the surface fastening the frame or sash requires additional operations, resulting in increased production costs associated with the hardware element.

EP 149437 A2 discloses a device for attaching a door or window frame to a wall structure. It contains a screw with a threaded sleeve that is rotatably attached to the screw, but is fixed in the axial direction. For rotational fastening, the screw and the threaded sleeve comprise internal hexagonal recesses, the internal hexagon of the threaded sleeve having a larger internal cross section than the internal hexagon of the screw, so that the screw can be rotationally driven independently of the threaded sleeve. An external thread is provided on a portion of the length of the threaded sleeve with the same pitch as the screw thread.

The frame is mounted in such a way that, with the help of a wrench, which simultaneously engages with two internal hexagonal recesses both in the wall and in the frame, a screw with a threaded sleeve is screwed in until the free end of the sleeve having a recessed head fits against the frame . To regulate (adjust) the frame on the wall, the screw can be screwed further into the wall or turned out of it with the help of a rotary tool that engages only in its internal hexagon.

Therefore, the object of the invention is to provide a combination of a mounting element and a hinge element for fastening the hinge elements to the frame or sash, by means of which, on the one hand, the hinge element can be reliably fastened to the frame or sash, and on the other hand, a simple fitting of the hinge element to frame, in particular to the sash.

This problem is solved according to the mounting element presented in claim 1 of the claims.

Due to the fact that a threaded extension is provided on the mounting part of the mounting element, rotatably mounted about its longitudinal axis and fixed in the direction of the longitudinal axis, only a threaded hole is additionally made for the threaded extension for the fitting element, into which the threaded extension is screwed after installation of the fastening parts on the frame or sash. Then, alignment of the fitting element in the perpendicular direction with respect to the fastening surface can be carried out by turning the threaded extension until the fitting element occupies the desired position.

This technically simple solution is based on the unexpected conclusion that for a firm fit of fittings, in particular hinged elements on a frame or sash, they do not need to fit on the mounting surface of the frame or sash. The frictional forces produced by the holding forces between the thread of the threaded hole in the fitting element and the thread of the thread extension do not allow the thread extension to rotate independently, which could lead to a displacement of the position of the fitting element.

In principle, the threaded extension can be structurally performed by any method, for example, as a threaded head mounted on the fastening part by means of a rivet connection. However, the most preferred embodiment is to perform a threaded extension containing an appropriately positioned threaded sleeve in order to take on the most significant holding forces.

In this case, the threaded sleeve is preferably mounted with a mounting protrusion provided on the mounting part.

Additional mounting elements between the mounting protrusion and the threaded sleeve can be discarded if the mounting protrusion has a round outer cross section, and the threaded sleeve is a round inner cross section corresponding to the indicated diameter of the outer cross section.

Axial threaded fixation, i.e. in the direction of its longitudinal axis, can be carried out constructively again by any method, for example, by means of a rivet passing through the center of the threaded sleeve, which engages with the mounting protrusion. However, it is most preferable to provide between the mounting part and the mounting protrusion a portion whose diameter is less than the diameter of the mounting protrusion. This section can be made in the form of an annular groove.

In a preferred embodiment, a flanging provided on the threaded sleeve extends into this portion. It has been experimentally established that in this embodiment, on the one hand, the threaded sleeve has a fairly rigid fixation on the mounting protrusion in the axial direction, on the other hand, fixing can be technically simple, in particular, by pressing the threaded sleeve body into this section after it nozzles by means of a suitable crimping tool.

In a first, preferred embodiment of the mounting element according to the invention, the fastening part has a fastening elongation.

Said mounting extension is preferably provided with an external thread made self-tapping. In this case, the mounting element is suitable, for example, for adjustable fastening of the fitting element to the hollow chamber profile of the frame or sash, provided that the external thread has a length sufficient to pass through several walls of the hollow chamber profile.

Most preferred is an improved form of the invention, in accordance with which the mounting extension at its free end contains a drill tip. This form of execution is most preferred when the mounting element is provided for the adjustable fastening of the fittings to a massive frame, for example, of wood or for thick-walled profiles made of plastic or metal. In particular, for thick-walled metal profiles, in which, in this case, an additional threaded hole must be pre-made, the proposed mounting element is suitable if the external thread is machine, for example, metric.

In principle, the extension can be carried out in any way that provides a sufficiently strong fit to create holding forces in the frame or sash. For installation on a hollow profile, the specified extension can be, in particular, made in the form of a rivet or spacer element, and the latter option is also suitable for installing a mounting extension in the hole of a massive frame or sash.

In another structural embodiment of the mounting element according to the invention, the fastening part comprises a fastening element, which, as is known from the prior art, can be inserted into the hollow profile chamber or installed in the groove of a massive frame or sash with fixation therein.

The drawings show examples of mounting elements according to the invention, where:

figa is a first embodiment of the invention, a side view;

figb - presented on figa example of execution, a perspective view;

figs - an example of implementation according to figa and fig.1b in disassembled form, in perspective;

figa-2c is a second exemplary embodiment according to the view shown in figa-1c;

figa-3c is a third exemplary embodiment according to the view shown in figa-1c;

figa-4c is a fourth exemplary embodiment according to the view presented on figa-1c;

figa-5c is a fifth exemplary embodiment according to the view shown in figa-1c, however, Fig.5a shows a complete longitudinal section;

figa-6c is a sixth embodiment according to the views shown in figa-1c;

figa-7c is a seventh embodiment of the mounting element according to the invention depicted in figa-1c, together with a schematically shown hinge element and a hollow profile of the frame or sash.

The mounting element, indicated in figure 1 as a whole under the number 100, contains a fastening part 1 made in the form of a threaded extension 2 having a self-tapping external thread 3 obtained by knurling. The length of the threaded extension 2 is calculated so that the threaded extension 2 passes through several walls of the chamber profile not shown in the drawing, with the provision, as is known from the prior art, of the holding forces in these walls.

To facilitate screwing the fastening part 1 into pre-prepared holes in the profile walls, the open end portion of the threaded extension shown on the left side of the drawing is made to converge smoothly onto a cone.

At the opposite end of the conical section of the end of the mounting part 1 is made as a single unit with her installation ledge 4. It has a cylindrical shape.

Between the mounting protrusion 4 and the mounting part 1, a portion 5 is provided whose diameter is less than the diameter of the mounting protrusion 4. The portion 5 is formed by an annular groove 6.

At the end 7 of the mounting protrusion 4, in the center of the longitudinal axis S, means 8 are provided for using the rotary tool to enable the fastening part 1 to be screwed into the holes provided for this in the profile walls by means of the indicated rotary tool.

On the mounting tab 4 is a threaded extension

11, made in the form of a threaded sleeve 9 having a metric external thread 10, with the possibility of rotation around the longitudinal axis S. At the end shown in the drawing to the right, facing away from the threaded extension 2, the threaded sleeve 9 has a closed end 12, in which means are also made 13 for use with a rotary tool.

As can be seen, in particular, from figa, the edge section 14 of the threaded sleeve 9 located at a certain distance from the end 12 is bent inward, forming a flange included in the portion 5 formed by the annular groove 6 and fixing the threaded sleeve 9 in the direction of the longitudinal axis S.

Describing further the forms of the invention shown in FIGS. 2-7, it is necessary to dwell in detail only on the differences of the corresponding embodiment from that shown in FIG. 1. Corresponding operations and structural elements are designated according to their purpose by a hundred-fold number of the corresponding execution form, for example, for the second execution form it is increased to 200 times the value.

In the embodiment of FIG. 2 shown in FIG. 2, the thread extension 202 is shorter than in the mounting member 100 and has a machine metric thread. In addition, the diameter of the threaded extension 202 is less than the diameter of the mounting protrusion 204. Section 205 is formed by a threaded portion between the threaded extension 202 and the mounting protrusion 204.

The mounting element 200 is suitable, in particular, for mounting fittings on thick-walled or massive frames or sashes made of a material that allows the internal threading to be provided in addition to the external thread 203 of the thread extension 202 and which, in particular, can be metal.

In the third embodiment shown in FIG. 3, the mounting element 300 has a threaded extension 302 provided with a self-tapping external thread 303 and a drill bit 315. This embodiment makes it possible to install the mounting element without first drilling mounting holes in materials that allow drilling through drill tip 315.

In the embodiment shown in FIG. 4, the fastening part 401 is made in the form of a rod with a smooth surface and a conical end portion 416 converging. The fastening part 401 in the form of a rod is suitable, in particular, for permanent fixation of the mounting element 400, for example, by gluing , or for permanent fixation, for example, by crimping the fastening part in the form of a riveted connection.

5, an example embodiment of the invention has a fastening part 501 made in the form of a spacer 517. For this, the fastening part 501 has an axial longitudinal hole 518 and a slot from the end shown in the drawing to the left, and is also provided with a grooved surface 519 around the circumference .

To spread the mounting part 1 after it is placed in the holes provided for this purpose in the frame or wing, an expansion screw 520 is used, which is pressed into the longitudinal hole 518.

In the embodiment of FIG. 6 shown in FIG. 6, mounting protrusions 604 are provided on fastener 621, inserted in a known manner into hollow profile chambers and secured by fastening screws that are screwed into fastening screw holes 622, with screw sleeves 609 protruding from holes in the fastener the wall of the profile not shown.

The following is an explanation of another exemplary embodiment of a mounting element according to the invention, with reference to FIG. 7, which schematically shows a hollow profile H and a hinge element B. As can be seen, in particular in FIG. 7a, the mounting element 700 comprises a rivet nut 723, having an internal thread 724. The fastening part 701 of the mounting element 700 comprises an additional external thread 723. The rivet nut 723 is made in a known manner so that the screw extension is screwed in and tightened to the stop formed by the mounting protrusion 704, Odilo to be flattening, and with the terminal and its wall in the hollow profile H W, as is clear from Figure 7a.

The installation of the hinge element B is carried out in the same way as in the previously described execution forms 100-600, after the installation of the mounting element in the frame or sash and wrapping, after fitting the hinge element B, the threaded bushings 709 in the direction that the threaded bushings 709 are screwed into the corresponding threaded holes G loop element. As, in turn, follows from figa, the adjustment of the hinge element can be carried out by rotation of the threaded sleeve 709 in the direction symbolically shown by the double arrow P, perpendicular to the mounting surface.

Claims (15)

1. The combination of the mounting element and the hinge element (B) for attaching the hinge element (B) to the frame or sash, with the fastening part attached to the frame or sash (1, 201, 301, 401, 501, 601, 701), located on the fastening part (1, 201, 301, 401, 501, 601, 701) with the possibility of rotation around its longitudinal axis (S) with a threaded extension, and with a threaded hole (G) provided on the hinge element, made corresponding to the threaded extension to screw in the threaded extension characterized in that the threaded extension is installed on the mounting part (1, 201, 301, 401, 501, 601, 701) is fixed in the direction of the longitudinal axis (S) with the possibility of screwing into the threaded hole after attaching the fastening part to the frame or sash. 2. The combination according to claim 1, characterized in that the threaded extension contains a threaded sleeve (9, 209, 309, 409, 509, 609, 709). 3. The combination according to claim 2, characterized in that the threaded sleeve (9, 209, 309, 409, 509, 609, 709) is located on the installation ledge (4, 204, 304, 404, 504, 604, 704) provided on the mounting part. 4. The combination according to claim 3, characterized in that the mounting protrusion (4, 204, 304, 404, 504, 604, 704) has a circular outer cross section, and the threaded sleeve (9, 209, 309, 409, 509, 609 , 709) has a circular inner cross section corresponding to the indicated diameter of the outer cross section. 5. The combination according to claim 4, characterized in that a section is provided between the mounting part (1, 201, 301, 401, 501, 601, 701) and the installation projection (4, 204, 304, 404, 504, 604, 704) (5, 205, 305, 405, 505, 605, 705), the diameter of which is less than the diameter of the mounting protrusion (4, 204, 304, 404, 504, 604, 704). 6. The combination according to claim 5, characterized in that said section (5) contains an annular groove (6). 7. The combination according to claim 5 or 6, characterized in that the threaded sleeve (9, 209, 309, 409, 509, 609, 709) has an inwardly curved edge portion (14, 214, 314, 414, 514, 614, 714 ) that extends into the indicated area (5, 205, 305, 405, 505, 605, 705). 8. The combination according to claim 1, characterized in that the mounting part (1) contains a mounting extension. 9. The combination according to claim 8, characterized in that the mounting extension has an external thread (3, 203, 303, 703). 10. The combination according to claim 9, characterized in that the external thread (3, 303) is self-tapping. 11. The combination according to claim 10, characterized in that the mounting extension has at its open end a drill tip (315). 12. The combination according to claim 9, characterized in that the external thread (203, 703) is a machine thread. 13. The combination of claim 8, characterized in that the mounting extension is made in the form of a rivet. 14. The combination according to claim 8, characterized in that the mounting extension is made in the form of a spacer element (517). 15. The combination according to claim 1, characterized in that the fastening part (601) comprises a fastening element (621) configured to be inserted into the hollow profile and having fixing screw holes (622).

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