AU2018202495B2

AU2018202495B2 - Bracket for fastening of supply lines or the like to a wall

Info

Publication number: AU2018202495B2
Application number: AU2018202495A
Authority: AU
Inventors: Dirk Albartus; Regina Michalik; Viktor Mihajlov; Paulus van de Schoor
Original assignee: Leviat GmbH
Current assignee: Leviat GmbH
Priority date: 2017-04-10
Filing date: 2018-04-09
Publication date: 2023-11-09
Anticipated expiration: 2038-04-09
Also published as: AU2018202495A1; EP3388690B1; EP3388690A1

Abstract

A bracket (1) for the fastening of supply lines or the like to a wall, especially the wall (2) of the pipes of a tunnel, possesses a fastening part (3) for the fastening to the wall (2) and a support arm (4) held on the fastening part (3). The support arm (4) is mounted on the fastening part (3) on a swivel joint (5), able to swivel about a swivel axis (10). The bracket (1) has a fixation device (11) for the fixation of the support arm (4) on the fastening part (3) in different rotary positions. The fixation device (11) comprises a fastening bolt (12), which protrudes through at least one opening (20) of the support arm (4) and at least one oblong hole (13) of the fastening part (3). A simple design results when the fixation device (11) comprises a disk (17) with an opening (36), wherein the fastening bolt (12) protrudes through the opening (36) and wherein the disk (17) has toothed elements (18, 48), which mesh with mating toothed elements (16, 46) on the fastening part (3). (Fig. 2) 14 Fig! 24 it 34 25 r3 29 26 32 25~3 133 17 ~~12 6 2

Description

Fig!24

it

34

25 r3

29 26 32

25~3

133

17 ~~12 6 2

Bracket for fastening of supply lines or the like to a wall

[0001] This disclosure relates to a bracket for fastening of supply lines or the like to a wall.

[0002] Various designs of brackets for the supporting of cables and/or pipelines are known from DE 73 06 928 U, comprising an angle-shaped fastening part and a support arm which can swivel on the fastening part and be mounted with fixation. In another embodiment, intermeshing toothings are arranged on the fastening part and support arm. Both the support arm and the

fastening part are therefore relatively costly to produce.

[0003] It is against this background that the present disclosure was developed.

[0004] In one aspect, there is provided a bracket for the fastening of supply lines or the like to a wall, wherein the bracket comprises a fastening part for fastening the bracket to the wall and a support arm mounted on the fastening part, wherein the support arm is mounted on the fastening

part by a swivel joint, so as to be pivotable about a swivel axis, wherein the bracket has a fixation device for fixing the support arm to the fastening part in different rotary positions, wherein the fixation device comprises a fastening bolt, which protrudes through at least one opening of the support arm and at least one oblong hole of the fastening part, wherein that the fixation device comprises at least one disk with an opening, through which the fastening bolt protrudes, and wherein the disk has toothed elements, which mesh with mating toothed elements on the fastening part.

[0005] In one form, the fixation device comprises at least one disk with an opening, through which the fastening bolt protrudes, wherein the disk has toothed elements, which mesh with mating toothed elements on the fastening part. Thanks to the formation of the toothed elements on the disk, the support arm itself is easy to fabricate. The toothed elements and mating toothed elements are able to transmit large forces. A form-fitting fixation of the support arm on the fastening part is achieved. Thanks to the oblong hole, through which the fastening bolt of the fixation device protrudes, an almost continual adjustment of the swivel position of the support arm relative to the fastening part is possible.

[0006] In one form, only a single oblong hole is provided for all swivel positions. In this way, the fastening bolt always protrudes through the same oblong hole, and the arrangement can be delivered in the preassembled state. During installation, it is only necessary to tighten the fastening bolt firmly in the desired position, so that the expense of lining up and fixing the bracket in the desired position is very slight.

[0007] Advantageously, the support arm is a girder with constant cross section. In one form, the support arm is formed by a profile cut to the desired length. In one form, the support arm has a smooth surface. The form-fitting fixation of the support arm with respect to the fastening part can occur via the disk, so that the support arm itself can have a simple construction. Because the support arm is formed as a girder with constant cross section, an adapting of the desired cantilever length of the support arm is possible in simple fashion. The support arm advantageously has two openings extending entirely through the support arm, namely, one opening for the fastening bolt and one opening for a bearing bolt of the swivel joint.

[0008] A high stability of the support arm can be achieved in simple fashion if the support arm has a U-shaped cross section. Preferably, the fastening bolt protrudes through both legs of the U shaped cross section. In especially preferred form, the U-shaped cross section is open at the top in the installed position, so that supply lines or the like can be positioned or fixed to the support arm by fastening means engaging with the support arm.

[0009] In one form, the fastening part also has a U-shaped cross section with two side sections and a back piece extending between the side sections. The support arm preferably engages between the two side sections of the fastening part. The mounting of the support arm on both sides produces a simple and stable configuration. Preferably, both side sections of the fastenings part possess an oblong hole and mating toothed elements. In this way, the tooth height for the transmittal of the desired forces can be kept relatively low and hence the pitch of the toothing can be correspondingly small, so that a very slight distance results between two possible neighboring positions of the support arm.

[0010] In one configuration, the fastening bolt and a bearing bolt of the swivel joint are identical in design. Advantageously, the oblong hole extends at least partly on the side of the swivel axis away from the free end of the support arm. The height of the fastening part can therefore decrease in the direction of the side away from the back piece. The back piece of the fastening part is preferably relatively tall, so that a good fastening of the fastening part to the wall is made possible.

[0011] A low structural height is achieved when the swivel axis of the swivel joint and the center axis of the fastening bolt lie in a common plane, which runs parallel to the longitudinal center axis of the support arm. The swivel axis of the swivel joint advantageously coincides with the center axis of the bearing bolt. In especially preferred configuration, the longitudinal center axis of the support arm lies in the plane subtended by the center axis of the fastening bolt and the swivel axis. In a preferred configuration, the oblong hole extends on both sides of the plane. In this way, the support arm can be tilted in both directions with respect to the fastening part, so that the orientation of the support arm in space is maintained independently of the inclination of the wall. A rotating of the arrangement by 1800 about an axis perpendicular to the wall and a necessary remounting of the support arm with respect to the fastening part need not be done. Preferably, the oblong hole is preferably shaped symmetrical to the plane. In an especially preferred configuration, the oblong hole runs in an arc about the swivel axis. In this way, the width of the oblong hole in the abutment area of the disk can be constant for every position of the support arm. However, it may also be provided that the oblong hole is configured as a straight oblong hole, so that the position of the center axis of the fastening bolt transversely to the longitudinal direction of the oblong hole changes according to the position of the support arm.

[0012] Advantageously, the support arm can swivel relative to the fastening part about a swivel angle of at least 60°. In particular, a swivel angle of at least 90, preferably of at least 110° is provided.

[0013] In one form, it is proposed that the toothed elements are arranged on at least one end face of the disk and mesh with mating toothed elements on at least one lengthwise side of the oblong hole. In this way, the disk can be arranged at least partly in the oblong hole, so that a slight lateral design size of the fastening part and especially of the entire bracket results. Preferably, the toothed elements are arranged on the radially outward situated lengthwise side of the oblong hole, relative to the swivel axis. Thanks to the greater distance from the swivel axis, the leverage is increased, so that relatively large forces can be transmitted already by a toothing with low height. In preferred configuration, the radially inward situated lengthwise side of the oblong hole is untoothed. However, it can also be provided that both the radially outward situated lengthwise side and the radially inward situated lengthwise side of the oblong hole have toothed elements.

[0014] In an alternative form, it is advantageously proposed that the toothed elements are formed on a flat side of the disk and mesh with mating toothed elements on the outer side of the fastening part. Thanks to the arrangement of the toothed elements on the flat side of the disk and the arrangement of the mating toothed elements on the outer side of the fastening part, a larger surface can be utilized for the toothed elements and the mating toothed elements. Thanks to the arrangement on the flat side, the fabrication can be simplified. The flat side of the disk is advantageously the side of the disk which lies perpendicular to the center axis of the fastening bolt.

[0015] Sample embodiments of the disclosure shall be explained below with the aid of the drawings. There are shown:

Fig. 1 a schematic representation of the arrangement of brackets on a wall,

Fig. 2 a side view of a bracket according to the invention,

Fig. 3 a cross section along line III-III in Fig. 2,

Fig. 4 a view in the direction of arrow IV in Fig. 2,

Fig. 5 a side view of the fastening part of the bracket,

Fig. 6 a cross section along line VI-VI in Fig. 5,

Fig. 7 a side view of the disk of the bracket,

Fig. 8 a cross section along line VIII-VIII in Fig. 7,

Fig. 9 a perspective representation of a sample embodiment of a bracket,

Fig. 10 the fastening part of the bracket of Fig. 9 in perspective representation,

Fig. 11 and Fig. 12 perspective representations of the bracket of Fig. 9 in different orientations.

[0016] Fig. 1 shows schematically the arrangement of brackets 1on a wall 2. The wall 2 is preferably the wall of the pipes of a tunnel. Supply lines, such as electrical lines in the form of cables or supply lines in the form of pipelines are usually fastened to such a curved tunnel wall. Each bracket has a support arm 4, which is fixed to the wall 2 by a fastening part 3. In order to arrange the supply lines on the support arm 4, the support arm 4 must be oriented horizontally. Due to the curvature of the wall 2, the support arm 4 can swivel relative to the fastening part 3 for this purpose.

[0017] Fig. 2 shows the detailed construction of the bracket 1. The support arm 4 is mounted on the fastening part 3 by a swivel joint 5 able to swivel about a swivel axis 10. The swivel joint 5 comprises a bearing bolt 6, which protrudes through the fastening part 3 and the support arm 4. A fixation device 11 is provided for the fixation of the support arm 4 in different swivel positions. The fixation device 11 comprises a fastening bolt 12, which protrudes through a disk 17. The disk 17 engages at least partly with an oblong hole 13 of the fastening part 3. In the sample embodiment, the disk 17 is arranged far inside the oblong hole 13. The oblong hole 13 has a first lengthwise side 14 and a second lengthwise side 15, which bound the oblong hole 13. The lengthwise side 14 is situated at a greater distance from the swivel axis 10 than the lengthwise side 15. The disk 17 possesses toothed elements 18 which mesh with mating toothed elements 16 of the first lengthwise side 14 of the oblong hole 13. In this way, the disk 17 is held in the fixed state in the oblong hole 13 by form fit in the lengthwise direction of the oblong hole 13. The fastening bolt 12 holds the disk 17 in the oblong hole 13 and makes sure that the disk 17 cannot slip sideways out from the oblong hole 13. When the fastening bolt 12 is released, the disk can be adjusted in the oblong hole 13 in the lengthwise direction of the oblong hole 13. As is also shown by Fig. 2, the oblong hole 13 runs in an arc about the swivel axis 10. The support arm 4 has a free end 37, which protrudes away from the wall 2 (Fig. 1) and from the fastening part 3. The disk 17 and the free end 37 are situated at opposite sides of the swivel axis 10. The distance from the free end 37 to the swivel axis 10 is larger by a multiple than the distance from the fastening bolt 12 to the swivel axis 10.

[0018] In Fig. 2 the two end positions 17' and 17" of the disk 17 are indicated by broken line. Between the two end positions 17' and 17" the support arm 4 can swivel about a swivel angle a. The swivel angle a is advantageously at least 60°, especially at least 90. In a preferred configuration, the swivel angle a is at least 110. In this way, the bracket 1 can be flexibly installed on the wall 2 in various positions.

[0019] The distance between neighboring toothed elements 14 and the distance between neighboring mating toothed elements 18 is comparatively small each time. The swivel angle a about which the support arm 4 is swiveled between neighboring positions of the support arm 4 is therefore likewise comparatively small, so that an almost continual adjustment of the swivel position of the support arm 4 is possible. The swivel angle a between neighboring possible positions of the support arm 4 is advantageously less than 10, especially less than 5°, preferably less than 30.

[0020] The fastening bolt 12 protrudes through an opening 36 of the disk 17, shown in Fig. 3. The diameter of the opening 36 is only slightly larger than the outer diameter d of the fastening bolt 12. A change in the position of the disk 17 in the oblong hole 13 produces a swiveling of the support arm 4 on account of the movement of the fastening bolt 12. In this way, the support arm 4 can be fixed in various swivel positions on the fastening part 3 by the fastening bolt 12 and the disk 17.

[0021] Fig. 2 shows the support arm 4 in a middle position, in which the support arm 4 is oriented perpendicular to a back piece 25 of the fastening part 3 which is to be arranged on the wall 2. The support arm 4 has a longitudinal center axis 35, subtending a plane 34 with the swivel axis 10. As shown by Fig. 21, the center axis 33 of the fastening bolt 12 also lies in the plane 34. The center axis 33 and a center axis 32 of the bearing bolt 6, shown in Fig. 3, lie in the same plane 34. The center axis 32 coincides with the swivel axis 10 in the sample embodiment.

[0022] In the sample embodiment, the oblong hole 13 is formed symmetrical to the plane 34. The support arm 4 can thereby be swiveled up or down each time by half the swivel angle a, starting from the middle position shown in Fig. 2. The orientation of the support arm 4 in space is maintained without having to remount the support arm 4 on the fastening part 3.

[0023] As Fig. 3 shows, the fastening part 3 has a U-shaped cross section with two side sections 26 and 27, extending roughly perpendicular away from the back piece 25 and the wall 2. The side sections 26 and 27 each have an oblong hole 13 and an opening 7 situated at a greater distance from the back piece 25. The bearing bolt 6 protrudes through the openings 7 in the two side sections 26 and 27. The bearing bolt 6 is formed as a screw in the sample embodiment and is secured by a nut 28 screwed onto the bearing bolt 6. A washer 9 is arranged between the head of the bearing bolt 6 or the nut 28 and the side sections 26 and 27, respectively. The support arm

4 is likewise U-shaped in the sample embodiment and possesses two legs 21 and 22, arranged perpendicular to a back piece 23 joining the legs 21 and 22. The legs 21 and 22 each have an opening 8. The bearing bolt 6 protrudes through the two openings 7 of the fastening part 3 and through the two openings 8 which are formed in two legs 21 and 22 of the support arm 4.

[0024] As Fig. 3 shows, two disks 17 are provided in the sample embodiment, each of which is arranged in an oblong hole 13 of one of the side sections 26 and 27. In the sample embodiment, the disks 17 are only slightly thicker than the side sections 26 and 27, so that the disks 17 project only slightly beyond the side sections 26 and 27. The distance between the side sections 26 and 27 corresponds approximately to the width e of the support arm 4, measured parallel to the swivel axis 10. As a result, the support arm 4 is arranged with slight play between the side sections 26 and 27. Thanks to the U-shaped configuration of the fastening part 3, the side sections 26 and 27 can be pressed firmly against the support arm 4 by the bearing bolt 6, so that the support arm 4 is clamped between the side sections 26 and 27 and cannot move in the direction of the swivel axis 10 relative to the fastening part 3.

[0025] As Fig. 3 shows, the fastening bolt 12 is likewise formed as a screw. The fastening bolt is screwed into a nut 29 on the side of the fastening part 3 situated opposite the head of the fastening bolt 12. A washer 9 is arranged between the nut 29 or the head of the fastening bolt 12 and the respective adjacent disk 17. The support arm 4 has an opening 20 in each leg 21, 22, through which the fastening bolt 12 is led. As also shown in Fig. 3, the bearing bolt 6 and the fastening bolt 12 are led with slight play in the openings 7 and 8 as well as the openings 20 and 36.

[0026] The fastening bolt 12 holds the disk 17 in the oblong hole 13 and makes sure that the disk 17 cannot slip sideways out from the oblong hole 13. Using the fastening bolt 12 and the disk 17, the support arm 4 can be fixed in various swivel positions on the fastening device 3.

[0027] As Fig. 4 shows, the support arm 4 has a roughly U-shaped cross section, which is formed by the back piece 23 and the legs 21 and 22 extending on either side of the back piece 23. The legs 21 and 22 have lengthwise sides 24 facing away from the back piece 23, at which the legs 21 and 22 are recurved inwardly. In this way, a slot 40 with reduced width is formed between the lengthwise sides 24. Fastening elements can engage with the slot 40 and be fixed behind the lengthwise sides 24. In this way, the support arm 4 can be used directly for the fixation of holding elements for supply lines. Due to the fact that the orientation of the support arm 4 is maintained both in event of an upward inclination of the support arm 4 from the middle position and a downward inclination of the support arm 4 from the middle position, this is possible regardless of the position of the fastening part 3 on a vaulted tunnel wall.

[0028] As Fig. 4 also shows, the back piece 25 of the fastening part 3 has fastening openings 30 and 31. In the sample embodiment, the fastening openings 30 and 31 are formed as oblong holes, with the fastening opening 30 running in the longitudinal direction of the back piece 25 and the fastening opening 31 running transversely to this. As Fig. 4 also shows, one fastening opening 30 is situated above the plane 34 and the other fastening opening 31 below the plane 34. This results in a comparatively large distance between the fastening openings 30 and 31, resulting in high stability for the fastening to the wall 2.

[0029] Fig. 5 shows the specific configuration of the fastening part 3. As Fig. 5 shows, the oblong hole 13 extends by an angle P about the swivel axis 10. The swivel axis 10 is the center axis of the opening 7. The angle P is larger than the swivel angle a, since the disk 17 engages with the oblong hole 13. The oblong hole 13 has a width a. The radially inward lengthwise side is formed smooth in the sample embodiment. However, it may also be provided that the lengthwise side 15 also has mating toothed elements 16.

[0030] As Fig. 5 shows, the fastening part 3 has a roughly triangular shape on the side away from the back piece 25. In the region of the opening 7, the height of the fastening part 3 is reduced, measured perpendicular to the plane 34 (Fig. 2).

[0031] Fig. 6 shows the U-shaped form of the fastening part 3 and the arrangement of the oblong holes 13 and the openings 7. The two openings 7 and the two oblong holes 13 are arranged each time congruently in the side sections 26 and 27.

[0032] Fig. 7 and 8 show the disk 17. The disk 17 may be formed as a circular ring segment. The disk 17 has a radially outward end face 38, on which the toothed elements 18 are disposed. The opposite, radially inward end face 39 is formed smooth. The width b of the disk 17 measured between the end faces 38 and 39 is only slightly less than the width a of the oblong hole 13. Advantageously, the widths a and b are designed to be equal or as a clearance within the bounds of the usual manufacturing tolerances. In this way, the disk 17 is led tightly in the oblong hole 13, and the result is a precise, especially a positioning of the support arm 4 almost free of play.

[0033] As Fig. 8 shows, the opening 36 has a diameter c. The diameter c is attuned to the diameter d (Fig. 3) of the fastening bolt 12. The diameter c is only slightly larger than the diameter b, so that the fastening bolt 12 is held with slight play in the opening 36.

[0034] Fig. 9 to 12 show another sample embodiment of a bracket 1. The bracket 1 comprises a fastening part 3 as well as a support arm 4. The same reference numbers designate corresponding elements in all the figures. The support arm 4 is fixed by a bearing bolt 6 and a fastening bolt 12 on the fastening part 3. For the fixation of the support arm 4 in various swivel positions, disks 47 are arranged on both side sections 26 and 27. However, the disks 47 do not engage with the oblong holes 13, but instead lie against outer sides 45 of the side sections 26 and 27. The disks 47 each have a flat side 49, situated facing the side sections 26 and 27. The center axis 33 runs through the flat sides 49. On the flat sides 49 through which the fastening bolt 12 protrudes there are arranged toothed elements 48, which extend into mating toothed elements 46 on the outer sides 45 of the side sections 26 and 27. In the sample embodiment, the mating toothed elements 46 are formed with constant width and extend on both sides of the oblong hole 13. The lateral position of the disk 47 in the mating toothed elements changes on account of the curved shape of the oblong holes 13 when the support arm 4 is swiveled.

[0035] As Fig. 9 also shows, fastening elements 44 also protrude through the back piece 25. The fastening elements 44 can be formed, for example, as hammerhead or hook head screws and protrude into a fastening rail arranged on the wall 2 (Fig. 1). This makes possible a simple fixation of the fastening part 3 on the wall 2. As Fig. 10 shows, the back piece 25 of the fastening part 3 in the sample embodiment of Fig. 9 to 12 has a continuous oblong hole 50, through which the fastening elements 44 protrude.

[0036] Fig. 10 shows the two side sections 26 and 27 and the oblong holes 13 and openings 7 formed in the side sections 26 and 27.

[0037] Fig. 11 and 12 show the bracket 1 in different swivel positions of the support arm. Fig. 11 shows the bracket 1 in the downward swiveled end position of the support arm 4, and Fig. 12 shows the bracket 1 in the upward swiveled end position of the support arm 4. As Fig. 11 and 12 show, the slot 40 of the support arm 4 is oriented upward in both orientations, so that fastening elements for the positioning and/or fixation of supply lines on the support arm 4 can be led through the slot 40.

[0038] In both sample embodiments the support arm 4 is formed as a girder with constant cross section. The support arm 4 for example can be cut to length from a rolled profile. The surface of the support arm 4 is preferably smooth and has no profiling, toothing, or the like. In this way, the support arm 4 can be easily fabricated. Both the fastening bolt 12 and the bearing bolt 6 each protrude through an opening 7 or an oblong hole 13 of the side sections 26 and 27 of the fastening part 3 and through an opening 8, 20 of the support arm 4. The fastening bolt 12 and the bearing bolt 6 are formed identical in the sample embodiments.

[0039] Advantageously, the present disclosure provides a bracket for the fastening of supply lines or the like on a wall, which is easy to fabricate and at the same time possesses a great variability and bearing capacity.

[0040] The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that such prior art forms part of the common general knowledge.

[0041] It will be understood that the terms "comprise" and "include" and any of their derivatives (e.g. comprises, comprising, includes, including) as used in this specification, and the claims that follow, is to be taken to be inclusive of features to which the term refers, and is not meant to exclude the presence of any additional features unless otherwise stated or implied.

[0042] In some cases, a single embodiment may, for succinctness and/or to assist in understanding the scope of the disclosure, combine multiple features. It is to be understood that in such a case, these multiple features may be provided separately (in separate embodiments), or in any other suitable combination. Alternatively, where separate features are described in separate embodiments, these separate features may be combined into a single embodiment unless otherwise stated or implied. This also applies to the claims which can be recombined in any combination. That is a claim may be amended to include a feature defined in any other claim. Further a phrase referring to "at least one of' a list of items refers to any combination of those items, including single members. As an example, "at least one of: a, b, or c" is intended to cover: a, b, c, a-b, a-c, b-c, and a-b-c.

[0043] It will be appreciated by those skilled in the art that the disclosure is not restricted in its use to the particular application or applications described. Neither is the present disclosure restricted in its preferred embodiment with regard to the particular elements and/or features described or depicted herein. It will be appreciated that the disclosure is not limited to the embodiment or embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions without departing from the scope as set forth and defined by the following claims.

Claims

1. A bracket for the fastening of supply lines or the like to a wall, wherein the bracket comprises a fastening part for fastening the bracket to the wall and a support arm mounted on the fastening part, wherein the support arm is mounted on the fastening part by a swivel joint, so as to be pivotable about a swivel axis, wherein the bracket has a fixation device for fixing the support arm to the fastening part in different rotary positions, wherein the fixation device comprises a fastening bolt, which protrudes through at least one opening of the support arm and at least one oblong hole of the fastening part, wherein that thefixation device comprises at least one disk with an opening, through which the fastening bolt protrudes, and wherein the disk has toothed elements, which mesh with mating toothed elements on the fastening part.

2. The bracket as claimed in claim 1, wherein the support arm is a girder with constant cross section.

3. The bracket as claimed in claim 1 or 2, wherein the support arm has a smooth surface.

4. The bracket as claimed in one of claims 1 to 3, wherein the support arm has a U-shaped cross section and in that the fastening bolt protrudes through both legs of the U-shaped cross section.

5. The bracket as claimed in one of claims 1 to 4, wherein the fastening part has a U-shaped cross section with two side sections and a back piece extending between the side sections.

6. The bracket as claimed in claim 5, wherein both side sections of the fastenings part possess an oblong hole and mating toothed elements.

7. The bracket as claimed in one of claims 1 to 6, wherein the fastening bolt and a bearing bolt of the swivel joint are identical in design.

8. The bracket as claimed in one of claims I to 7, wherein the oblong hole extends at least partly on the side of the swivel axis away from the free end of the support arm.

9. The bracket as claimed in one of claims 1 to 8, wherein the swivel axis of the swivel joint and the center axis of the fastening bolt lie in a common plane, which runs parallel to the longitudinal center axis of the support arm.

10. The bracket as claimed in claim 9, wherein the oblong hole extends on both sides of the plane and is preferably shaped symmetrical to the plane.

11. The bracket as claimed in one of claims 1 to 10, wherein the oblong hole runs in an arc about the swivel axis.

12. The bracket as claimed in one of claims I to 11, wherein the support arm can swivel relative to the fastening part about a swivel angle of at least °, especially at least 90, advantageously at least 1100.

13. The bracket as claimed in one of claims 1 to 12, wherein the toothed elements are arranged on at least one end face of the disk and mesh with mating toothed elements on at least one lengthwise side of the oblong hole.

14. The bracket as claimed in claim 13, wherein the toothed elements are arranged on the radially outward situated lengthwise side of the oblong hole, relative to the swivel axis, and the radially inward situated lengthwise side of the oblong hole is untoothed.

15. The bracket as claimed in one of claims 1 to 12, wherein the toothed elements are formed on a flat side of the disk and mesh with mating toothed elements on the outer side of the fastening part.