DE202010015425U1 - Carrier unit and fastening element for fixing the carrier unit - Google Patents

Abstract

Carrier unit (2) having at least one fastening element (1) for fixing the carrier unit (2) in a recess (51) of a wall (50), wherein the fastening element (1) has at least one leg (20) which extends in its longitudinal extension from the Carrier unit (2) projects outwardly and in the direction of the support unit (2) and vice versa elastically deformable, characterized in that the leg (20) in the longitudinal direction in the direction of its free end a continuation (30) having at least a first projection (31), which is adapted to be biased towards the support unit (2), and at least one second protrusion (32), which protrudes at least in the length of the first projection (31) and is suitable behind and / or into the wall (50) and / or engage, so that the carrier unit (2) within the recess (51) by means of the projections (31, 32) is fixed at least in a direction perpendicular to the wall (50).

Description

The invention relates to a carrier unit and a fastening element for fixing the carrier unit in a recess of a wall or plate.

There are known fastening devices by means of which carrier units, equipment inserts or other components can be fixed by screwing or clipping into a recess of a wall or plate.

The DE 195 15 365 C1 describes a device for biasing and holding a device insert in a worktop cutout in which a first leg of the device is locked to the device insert and a second leg engages behind or under the worktop and is biased by a screw.

The DE 15 40 180 A1 describes a mounting device for a use of equipment in kitchen panels, in which an angular retaining clip engages behind or under a plate and the retaining clip is biased and locked by means of a arranged on the device insert surface with detents.

The DE 37 09 970 A1 describes an elongated spring band strip which is used for locking a housing within a wall recess in a groove on the side wall of the housing such that an elastic projection is formed, which engages for locking behind the end face.

The DE 201 13 154 U1 describes a vehicle interior module, which is held for producing an electrical contact by means of a retaining lug and detent springs within a recess of a wall panel, wherein the detent springs are electrically conductive for power transmission.

Object of the present invention is to provide an improved fastening device by means of which a support unit in a recess of a wall, regardless of the wall thickness, can be used and locked in a relatively simple manner.

According to the invention this object is achieved by a carrier unit with the features of the main claim and a fastener with the features of the independent claim. Advantageous embodiments and further developments of the invention are listed in the respective subclaims.

The carrier unit with at least one fastening element for fixing the carrier unit in a recess of a wall, wherein the fastening element has at least one leg which protrudes in its longitudinal extent from the carrier unit to the outside and in the direction of the carrier unit and vice versa is elastically deformable, provides in that the leg has a continuation in the longitudinal direction in the direction of its free end, with at least one first projection which is suitable to be prestressed in the direction of the carrier unit, and at least one second projection, which protrudes at least in the length from the first projection, and suitable is to engage behind the wall and / or in the wall and / or engage, so that the carrier unit is defined within the recess by means of the projections at least in a direction perpendicular to the wall.

It is inventively provided that when inserting the carrier unit in the recess of the wall of the legs of the fastening unit fixed to the carrier unit projecting from the carrier unit such that the leg rests against a disposed within the recess end face of the wall and from the front side in the direction of the Carrier unit is biased. The leg preferably protrudes outward from a lateral boundary of the carrier unit. In the mounted state of the carrier unit in the recess, the leg is preferably located with at least a first projection on the end face of the wall, preferably in a region between the wall and the carrier unit. The first projection of the leg is biased from the front side, that a clamping effect between the wall and the carrier unit is generated, by means of which the carrier unit is held within the recess. It is provided to arrange at least two fastening elements opposite or offset from one another on the carrier unit, so that no additional locking device or screwing the device is necessary for a secure fit due to the clamping effect of the carrier unit within the recess. The leg of the fastening element has at least one second projection, which preferably has a length configuration which is smaller than the first projection and is suitable for grasping behind or in the end face or wall. The second projection acts as a barb by the engagement behind the wall and prevents loosening or movement of the carrier unit against the mounting direction. The mounting direction is preferably a direction perpendicular to the wall. Preferably, the latching or engaging behind the second projection, as soon as the carrier unit is completely inserted into the recess of the wall.

According to the invention, a first and a second section are formed on the first projection, wherein the first section preferably has an inclination both with respect to the leg and with respect to the second section. The first section lies in the assembled state of Carrier unit within the recess on the end face of the wall and is biased by this so that slipping or loosening of the support unit is prevented at least against the mounting direction. The second section preferably has an inclination relative to the first section, which allows slipping from the front or behind behind the wall of the first projection to be prevented. It is provided to fasten the carrier unit preferably in a recess of an interior lining of a motor vehicle, wherein the interior lining may have different wall thicknesses. Depending on the wall thickness of the leg or the first projection is biased by the end face of the wall within the recess more or less in the direction of the carrier unit, so that the first projection is higher or lower on the front side. The smaller the wall thickness, the closer the contact point between the first projection and the end side lies in the direction of the free end of the first projection. The first projection therefore according to the invention has a sufficiently large length to be biased even with walls with very small wall thicknesses.

The second projection preferably has an inclination relative to the leg in the direction of the carrier unit. The inclination of the second protrusion is less pronounced with respect to the inclination of the first protrusion, so that the second protrusion protrudes from the first protrusion in the inclination. In another embodiment of the invention, the second projection with respect to the leg has no inclination, but is formed as a continuation of the leg. According to the invention, the second projection has a smaller length formation than the first projection. The projection of the second projection with respect to the first projection in length and inclination allows the second projection engages behind the wall when inserting the carrier unit in the recess, so that a movement of the carrier unit is blocked against the mounting direction. Depending on the embodiment of the invention, a gripping behind the second projection on walls of different wall thickness is possible. The second projections are inventively sufficiently short and designed to be inclined in order to reach behind the wall even with walls with a large wall thickness. This makes it possible to bias the carrier unit by means of the fastener in recesses of walls of different wall thickness and set.

In one embodiment of the invention, a slot, slot or slot is formed on the carrier unit, which is preferably arranged on a side wall of the carrier unit and extends into the carrier unit. Within the drawer a receiving device is preferably arranged, in which engages a holding device of the fastening element. For this purpose, the fastening element preferably has a leg which is suitable for being pushed into the insert of the carrier unit and fixed by means of the holding device. It is envisaged to lock the fastening element within the insert, preferably by means of a latching hook, a spring or another element, preferably in a form-fitting manner against being pulled out or sliding out.

The support unit according to the invention has a laterally outwardly, preferably parallel to the wall projecting edge, which preferably has a greater dimension than the recess of the wall, so that upon insertion of the carrier unit in the recess, the edge rests against the wall and another insertion or falling through the carrier unit is prevented in or through the recess. The support unit is thus fixed on the one hand by means of the protruding edge, which rests at least partially on a front side of the wall, and on the other hand by means of the projections of the fastening element engaging in or behind the wall.

The carrier unit is preferably cylindrical. This makes it possible to produce the recess in the wall easily and inexpensively, for example by drilling.

The fastening element for fixing to the carrier unit, wherein the fastening element is constructed as an L-shaped body with a first leg and a second leg and the legs are elastically deformable to each other, provides that at least on the second leg in the longitudinal direction in the direction of its free Finally, a continuation is formed with at least a first projection and at least one second projection, wherein at least the first projection relative to the second leg has a slope and the second projection is the first projection in length and slope.

It is inventively provided that the first and second legs are preferably formed flat and angular to each other and approximately in the middle of the longitudinal extent of the fastening element in a deflection, preferably a rounding or a kink, are interconnected. It is envisaged that the first and the second leg are resilient to each other. This makes it possible, when mounting a carrier unit equipped with the fastening element, to elastically deform or prestress the second leg projecting from the carrier unit onto the first leg or onto the carrier unit. In the relaxed state, the fastener between the legs preferably at an angle of more than 90 °. This allows a sufficiently large way to bias the second leg to the first leg. The legs each have preferably at their longitudinally extending ends holding or locking means by means of which the first leg on the support unit and the second leg on the front side within the recess can be fixed. The second leg has according to the invention in the longitudinal extent at its end flat and inclined projections or webs, wherein in one embodiment of the invention, two of these projections are formed on the outer sides of the leg in the form of barbs and a projection on the inner surface of the leg in shape a support surface is formed. The second projection is preferably the length and inclination of the first projection back to engage in the mounted state of the carrier unit within the recess behind the wall.

The fastening element is set according to the invention by means of the first leg on the carrier unit. The first leg of the fastener is preferably constructed to be complementary to a slot or slot on the carrier unit. In addition, a holding device is preferably formed on the first leg, so that the first leg is inserted into the slot or slot of the carrier unit and fixed by means of the holding device. The arrangement and fixing of the fastening element to the carrier unit takes place in such a way that the second leg of the carrier unit protrudes outwards in order to be biased in the direction of the carrier unit.

In one embodiment, the holding device is designed as a latching hook and engages within the insert preferably in a receiving device on the carrier unit, so that a release of the fastening element is prevented from the insertion of the carrier unit. The latching hook is preferably releasably engaged in the receiving device of the carrier unit. The latching hook preferably projects from a flat side of the first leg.

The formation of the projections as webs, tongues or noses is particularly advantageous for cost-effective production.

The fastener is constructed according to the invention of a material which is suitable to allow a suspension or elastic bending of the two legs to each other. Preferably, the fastener is constructed of plastic.

Hereinafter, an embodiment of the invention will be explained in more detail with reference to the accompanying figures. Show it:

1 - A schematic structure of the fastener;

2 A schematic representation of the carrier unit with mounted fastening elements;

3 A schematic representation of the mounting of the carrier unit on a recess of a wall;

4 - A schematic representation of the fastener in the assembled state of the carrier unit and

5 - A schematic representation of the fastener in the assembled state of the carrier unit with different wall thicknesses.

In the 1 is schematically the structure of the fastener 1 shown. The fastener 1 has a flat, L-shaped body and is by a deflection 15 in two thighs 10 . 20 divided. The first leg 10 has at its free end a rounded or tapered edge 11 on, an insertion of the fastener 1 into a slot or shaft 41 the carrier unit 2 facilitated. On the first leg 10 is a latching hook 12 formed from a side surface of the first leg 10 in the direction of the second leg 20 protrudes, leaving a flank of the latching hook 12 against the direction of the deflection 15 is trained. By means of the latching hook 12 it is possible the fastener 1 on the carrier unit 2 clipped in and set.

The second leg 20 is in the relaxed state by about 60 ° relative to the first leg 10 deflected. Another deflection 35 . 36 of the thigh 20 takes place in the area where the thigh 20 in three protrusions 31 . 32 passes. There are in longitudinal extension a centrally located first projection 31 as well as on the left and right outside of the thigh 20 in each case a second projection 32 educated. In the area of the transition from the fully formed leg 20 to the tabs 31 . 32 have the projections 31 . 32 one deflection each 35 . 36 on. The second projections 32 are opposite the first projection 31 less inclined, leaving the second protrusions 32 the first lead 31 stand back in the inclination. This allows the second protrusions 32 not in the assembled state on the front side 52 are supported, but behind the wall 50 grab and act as a barb, allowing a movement of the carrier unit 2 contrary to the mounting direction 70 is blocked. The second projections 32 facing the second leg 20 preferably an inclination 35 from about 40 ° in the direction of the first leg 10 up, the first lead 31 a tilt 36 from about 80 °.

The first advantage 31 has a first section 33 and a second section 34 on. The sections 33 . 34 are over a deflection 27 interconnected and have an inclination to each other. The second section 34 is outward, against the direction of the first leg 10 inclined. As a result, in the assembled state of the carrier unit is a sufficiently large support surface of the fastening element 1 opposite the front 52 the Wall 50 guaranteed. In addition, a slipping of the first projection 31 from the front side 52 prevented.

The deflection 15 of the fastening element 1 allows together with the material properties of the fastener 1 a controlled elastic movement of the second leg 20 in the direction of the first leg 10 and vice versa. The deflection 15 is formed in the illustrated embodiment of the invention as a rounding and acts as a rotation axis for the elastic movement of the legs 10 . 20 to each other. The distractions 35 . 36 . 37 the projections 32 . 31 are preferably less elastic or even rigid.

In the 2 is a schematic representation of the carrier unit 2 with fasteners 1 shown attached to the carrier unit 2 are fixed. The carrier unit 2 is formed in this example as a cylindrical body and has at a circumferential side boundary 44 slots 41 as well as recording facilities 42 for inserting and fixing the fastening elements 1 on. There are three fasteners 1 encircling the carrier unit 2 established.

The second leg 20 of the fastener 1 is the carrier unit 2 laterally outwardly and is at least in the direction of the carrier unit 2 elastically deformable. In the assembled and relaxed state of the fastener 1 on the carrier unit 2 is the longitudinal extension end of the second protrusions 32 at least approximately parallel to the page boundary 44 aligned.

At a front or front side of the carrier unit 2 is an outwardly projecting edge 43 the carrier unit 2 arranged. The edge 43 according to the invention is both the side boundary 44 as well as the recess 51 above. As a result, during insertion and in the assembled state of the carrier unit 2 slipping or falling out of the carrier unit 2 from the recess 51 prevented. This is especially true in 4 clear. The edge 43 the carrier unit 2 is preferably formed such that the lower surface of the edge 43 , So the area in the direction of the fasteners 1 , flat or plane parallel to the wall 50 is applied. In addition, the edge 43 preferably formed thin-walled, so that the edge 43 the Wall 50 only slightly protruding.

The carrier unit 2 is preferably constructed of plastic and has an internal cavity or space, which is usable for receiving or locking of objects or devices not shown in the figures.

In the 3 is both the carrier unit 2 with the mounted fasteners 1 as well as a recess 51 a wall 50 shown, in which the carrier unit in the mounting direction 70 is to use. The carrier unit 2 is from the front of the wall 50 in the recess 51 introduced. When inserting the outwardly projecting second leg 20 the fasteners 1 from the front side 52 the Wall 50 in the direction of the carrier unit 2 biased against each other. Once on the second leg 20 arranged and opposite the first projection 31 shorter formed second projections 32 inside the recess 51 at the front 52 until behind the wall 50 slipped past, relax the second tabs 32 outwards and reach behind the front 52 or the wall 50 , The first advantage 31 remains on the other hand, from the front page 52 in the direction of the carrier unit 2 biased. In a best possible embodiment of the invention, the second projections engage 32 behind the wall 50 as soon as the edge 43 at the front of the wall 50 rests.

In a version like in 3 represented, is the recess 51 the Wall 50 round, with the recess 51 a paragraph 53 towards the wall 50 having. At the heel 53 is the diameter of the recess 51 increased. Paragraph 53 is particularly for easy disassembly of the carrier unit 2 from the recess 51 intended. This is the second leg 20 of the fastening element 1 in the paragraph area 53 with the help of a suitable tool in a relatively simple manner to the carrier unit 2 biased, so the barbs 32 the front side 52 or the paragraph 53 stand back in the direction of the carrier unit and the carrier unit 2 from the recess 51 is removable.

In the 4 is the fastener 1 in the assembled state of the carrier unit 2 shown schematically in a section. The fastener 1 is with the first leg 10 in one in the carrier unit 2 arranged slot 41 fully inserted, leaving the latching hook 12 of the first thigh 10 in a receiving device 42 the carrier unit 2 intervenes.

The deflection 15 of the fastening element 1 is outside the slot 41 freely movable arranged. The second leg 20 of the fastening element 1 lies with the first projection 31 at the front 52 the Wall 50 and is in the direction of the carrier unit 2 biased. The opposite to the first projection 31 shorter and less inclined formed second projections 32 stand the first lead 31 in the direction opposite to the carrier unit 2 in case of movement of the carrier unit 2 contrary to the mounting direction 70 in the form of barbs behind the wall 50 , allowing the carrier unit to slip out 2 contrary to the mounting direction 70 is prevented.

Likewise, with a wall 50 with smaller wall thickness, as in 5 illustrated, a secure abutment of the first and second projections 31 . 32 at the front 52 or behind the wall 50 guaranteed. The fastener 1 is over the thighs 10 . 20 preloaded and contrary to the mounting direction 70 blocked, the edge 43 on the wall 50 abuts and another movement of the carrier unit 2 prevented in mounting direction. The bias and inclination of the second protrusions 32 thus allow a safe investment of the projections 32 on the wall 50 and a secure holding the carrier unit 2 inside the recess 51 ,

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19515365 C1 [0003]
• DE 1540180 A1 [0004]
• DE 3709970 A1 [0005]
• DE 20113154 U1 [0006]

Claims (11)

Carrier unit ( 2 ) with at least one fastening element ( 1 ) for fixing the carrier unit ( 2 ) in a recess ( 51 ) a wall ( 50 ), wherein the fastener ( 1 ) at least one leg ( 20 ), which in its longitudinal extent from the carrier unit ( 2 ) protrudes outwards and in the direction of the carrier unit ( 2 ) and vice versa is elastically deformable, characterized in that the leg ( 20 ) in the longitudinal extension in the direction of its free end a continuation ( 30 ) having at least a first projection ( 31 ) which is suitable to move in the direction of the carrier unit ( 2 ) and at least one second projection ( 32 ), the first lead ( 31 ) protrudes at least in length and is suitable behind and / or in the wall ( 50 ) and / or engage, so that the carrier unit ( 2 ) within the recess ( 51 ) by means of the projections ( 31 . 32 ) at least in a direction perpendicular to the wall ( 50 ). Carrier unit according to claim 1, characterized in that the first projection ( 31 ) a first section ( 33 ) and a second section ( 34 ), wherein at least the first section ( 33 ) opposite the thigh ( 20 ) an inclination in the direction of the carrier unit ( 2 ) having. Carrier unit according to claim 1 or 2, characterized in that the second projection ( 32 ) opposite the thigh ( 20 ) has an inclination in the direction of the carrier unit, wherein the second projection ( 32 ) the first projection ( 31 ) stands back in inclination. Carrier unit according to any preceding claim, characterized in that on the carrier unit ( 2 ) at least one slot or slot ( 41 ) is formed, in which the fastening element ( 1 ). Carrier unit according to any preceding claim, characterized in that the carrier unit ( 2 ) one parallel to the wall ( 50 ) projecting edge ( 43 ) having. Carrier unit according to any preceding claim, characterized in that the carrier unit ( 2 ) is cylindrical. Fastening element ( 1 ) for fixing to a carrier unit ( 2 ) according to one of the preceding claims, wherein the fastening element ( 1 ) as an L-shaped body with a first leg ( 10 ) and a second leg ( 20 ) and the thighs ( 10 . 20 ) are mutually elastically deformable, characterized in that at least on the second leg ( 20 ) in the longitudinal extension in the direction of its free end a continuation ( 30 ) with at least a first projection ( 31 ) and at least a second projection ( 32 ) is formed, wherein at least the first projection ( 31 ) opposite the second leg ( 20 ) has a slope and the second projection ( 32 ) the first projection ( 31 ) stands back in length and inclination. Fastening element according to claim 7, characterized in that the first leg ( 10 ) a holding device ( 12 ), which is adapted to the fastener ( 1 ) on the carrier unit ( 2 ). Fastening element according to claim 7 or 8, characterized in that the holding device ( 12 ) is designed as a latching hook. Fastening element according to any preceding claim, characterized in that the projections ( 31 . 32 ) are constructed as webs, tongues or noses. Fastening element according to one of the preceding claims, characterized in that the fastening element ( 1 ) is constructed of spring steel or plastic.

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