DE202022102147U1 - Elastic bearing for supporting a component on a horizontal edge of a fastening hole - Google Patents

Abstract

Elastic bearing (1) for vertically and horizontally supporting a component on a horizontally extending fastening edge (4) of a fastening hole (3), the elastic bearing having
- a frame (5) made of plastic (6) for positive insertion from above into the fastening hole (3),
- an elastomer spring (10) inserted or to be inserted into the frame (5) from above with a vertically aligned receiving bushing (13),
- a bearing core (14) inserted or to be inserted into the receiving socket from above and
- a safety hood (22) to be fastened from below to the bearing core (14), the safety hood (22) being dimensioned to cover the fastening hole (3) and parts of the frame (5) reaching downwards through there, and the safety hood ( 22) has an upwardly directed stop edge (29) with a stop buffer (30) made of elastomeric material, the horizontal dimensions of which are larger by a circumferential projection than the hole dimensions of the fastening hole (3).

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates to an elastic bearing for vertically and horizontally supporting a component on a horizontally extending fastening edge of a fastening hole. In particular, the invention relates to an elastic bearing for supporting a cooling module on the body of a motor vehicle.

STATE OF THE ART

From the DE 10 2010 005 763 A1 a bearing for a cooling module of an internal combustion engine of a motor vehicle with a vehicle frame is known, which can be fixed to the vehicle frame, with a section of the vehicle frame being integrated into the bearing. The bearing has a U-shaped first section. A rubber element is arranged between the first section and the section of the vehicle frame and is connected to the first section by means of vulcanization. A screw of a fastening device extends through through holes in the two legs of the U-shaped first section and the intermediate section of the vehicle frame. A second section of the bearing is designed to fix the bearing to the cooling module. To attach the cooling module to the vehicle frame, the cooling module with the first section of the bearing must be pushed linearly onto the section of the vehicle frame, with the through holes being aligned with one another.

From the DE 10 2017 117 142 A1 is a cooling module bearing for a motor vehicle cooling module with a frame designed for mounting on the body, a spring arrangement made of elastomeric material enclosed by the frame in a main extension plane and connected to the frame, and a bearing bush supported by the spring arrangement within the frame. The bearing bush has a recess that is open in the transverse direction to the main extension plane for receiving a non-round bearing pin of the cooling module. At both ends of its recess, the bearing bush has support surfaces running along the main extension plane and arranged around the recess for counter surfaces of the bearing pin that run transversely to the transverse direction, via which transverse forces in the transverse direction can be transferred from the bearing pin to the bearing bush. The spring arrangement is designed to elastically support the transverse forces transmitted to the bearing bush. The spring arrangement has two lower spring struts which extend away from the bearing bush in a V-shape and two upper spring struts which extend diametrically apart from an upper extension of the bearing bush. A mounting hook and a mounting extension extending along an opening direction of the mounting hook are formed on the outer circumference of the frame, with a fastening hole running transversely through the mounting extension in the main extension plane. The mounting extension, designed as a hollow profile, is reinforced by a cross brace in the area of the fastening hole. A total of four such cooling module bearings are snapped onto laterally aligned bearing bolts at the four corners of the vehicle cooling module. Then the vehicle cooling module bearing is attached to the body of the motor vehicle using the mounting hooks and secured there using fastening screws that pass through the fastening holes. Hanging must be carried out in the linear direction of the mounting hooks and the mounting holes in the mounting extensions must be aligned with corresponding mounting holes in the body.

OBJECT OF THE INVENTION

The invention is based on the object of providing an elastic bearing which is suitable for softly elastically supporting a cooling module bearing on a body of a motor vehicle and thereby enables the cooling module to be easily mounted on the body.

SOLUTION

The object of the invention is achieved according to the invention with the features of the independent protection claims. Further preferred embodiments according to the invention can be found in the dependent claims.

DESCRIPTION OF THE INVENTION

An elastic bearing according to the invention for vertically and horizontally supporting a component on a horizontally extending fastening edge of a fastening hole has a frame made of plastic for positive insertion from above into the fastening hole, an elastomer spring inserted or to be inserted from above into the frame with a vertically aligned receiving bush, one of bearing core inserted or to be inserted into the receiving socket at the top and a safety cover to be attached to the bearing core from below. The safety cover is dimensioned so that it covers the fastening hole and parts of the frame that reach downwards through it. Furthermore, the safety hood has an upwardly directed stop edge with a stop buffer made of elastomeric material, the horizontal dimensions of which are larger than the hole dimensions of the fastening hole by a circumferential projection.

The elastic bearing according to the invention is designed to cooperate with a simple fastening hole, more specifically its horizontally extending fastening edge. The assembly is essentially carried out by positively inserting the plastic frame from above into the mounting hole. With the frame, which is supported from above and inside on the fastening edge, the bearing core inserted into the receiving bushing of the elastomer spring and the component attached to it are already supported vertically and horizontally. The safety cover attached to the bearing core from below prevents this support from being lost. By abutting the fastening edge from below with its stop edge at a distance from the fastening hole, the safety hood prevents both the bearing core from being pulled out of the elastomeric spring and the elastomeric spring from the frame as well as the frame from being pulled out of the fastening hole. The safety hood is struck in a buffered manner via the stop buffer made of elastomeric material, distributed over the comparatively long course of the stop edge and at a distance from the projection to the fastening hole. In this way, local overstressing of the material, including the fastening edge, is prevented. In other words, the fastening hole can be provided, for example, in a comparatively thin holding plate, without this holding plate being overstressed even during impulse-like upward accelerations of the bearing core. The safety cover also shields the fastening hole and the elastic bearing mounted in it from the bottom and thus protects it from contamination, for example.

If the frame of the bearing according to the invention has guide surfaces that converge downward in a funnel shape and end on an outer circumference of the frame with the hole dimensions of the fastening hole, inserting the frame from above into the fastening hole is simplified. This applies not only to a vertical insertion of the frame from above into the fastening hole, but also to an insertion starting obliquely from above, in which the frame reaches its horizontal end position in the fastening hole through a superimposed or subsequent pivoting movement.

The frame typically has a downward-facing circumferential stop surface for striking the fastening edge from above. Vertical forces on the bearing core are supported on the fastening edge via this stop surface.

Furthermore, the frame can have locking projections for engaging under the fastening edge. With the help of these locking projections, the frame inserted into the fastening hole is automatically secured to the fastening edge. In the elastic bearing according to the invention, the locking projections are at least not solely intended to secure the frame in the fastening hole against upward pull-out forces. Rather, this happens with the help of the safety cover. Accordingly, the locking projections can be designed according to other criteria, for example for easy locking and/or tolerance compensation with regard to the height of the fastening edge.

The safety hood can have a central through hole. Then a fastening screw can be screwed through the through hole from below into a vertical fastening hole in the bearing core in order to fasten the safety cover to the bearing core. The length of the fastening hole or the length of the engaging shaft of the fastening screw, the shape of the thread of the fastening screw and the dimensions of the head of the fastening screw can ensure that a resilient fastening of the locking screw to the bearing core is achieved. Specifically, the fastening screw can have a self-tapping external thread with which it is screwed into an initially threadless hole in the plastic bearing core.

The safety hood can be made of plastic like the frame of the elastic bearing according to the invention. If necessary, this can be a reinforced, in particular a fiber-reinforced, plastic.

The stop buffer made of elastomeric material can be connected in a material and/or form-fitting manner to the upward-facing stop edge of the safety hood. In particular, the stop buffer made of elastomeric material can be molded onto the upwardly directed stop edge and chemically bonded. This can be done in 2K technology.

In principle, the elastomer spring can also be molded onto the frame of the elastic bearing according to the invention and chemically bonded. However, it is preferred if the elastomer spring is an initially separately manufactured component that is then locked with the frame in a mutual positive and frictional connection. In this way, there is greater scope for design in the spatial shape of the elastomer spring, and the overall manufacturing costs of the elastic bearing according to the invention are cheaper. In addition, the Elastic bearing according to the invention does not generate any major forces that could cause the elastomer spring to come undesirably loose from the frame.

The elastomeric spring can have spring arms and a spring frame, the spring arms extending obliquely downwards from the receiving bushing to the spring frame in different directions. The spring frame can be supported on the frame both horizontally and vertically.

In a preferred use of the elastic bearing according to the invention, two elastic bearings according to the invention are used for vertically and horizontally supporting a cooling module on horizontally extending fastening edges of two fastening holes spaced apart from one another in a transverse direction in retaining plates of a body of a motor vehicle. The cooling module with the frame of the elastic bearings attached to it via the bearing cores and the elastomer springs is pivoted about the transverse direction into the fastening holes. The safety covers are then attached to the bearing cores from below. Typically, the elastic bearings according to the invention form two lower support points for the cooling module. Additional upper support points can be formed by other elastic bearings.

Advantageous developments of the invention result from the protection claims, the description and the drawings.

The advantages of features and combinations of several features mentioned in the description are merely examples and can have an alternative or cumulative effect without the advantages necessarily having to be achieved by embodiments according to the invention.

With regard to the disclosure content - not the scope of protection - of the original application documents and the utility model, the following applies: Further features can be found in the drawings - in particular the geometries shown and the relative dimensions of several components to one another as well as their relative arrangement and operative connection. The combination of features of different embodiments of the invention or of features of different protection claims is also possible, deviating from the selected relationships of the protection claims, and is hereby suggested. This also applies to features that are shown in separate drawings or are mentioned in their description. These features can also be combined with features of different protection claims. Likewise, features listed in the protection claims may be omitted for further embodiments of the invention, but this does not apply to the independent protection claims of the registered utility model.

The features mentioned in the protection claims and the description are to be understood in terms of their number in such a way that exactly this number or a larger number than the number mentioned is present, without the need for an explicit use of the adverb “at least”. For example, when we talk about an element, this should be understood to mean that there is exactly one element, two elements or more elements. The features listed in the protection claims can be supplemented by further features or can be the only features that the subject of the respective protection claim has.

The reference symbols contained in the protection claims do not represent a restriction on the scope of the objects protected by the protection claims. They merely serve the purpose of making the protection claims easier to understand.

BRIEF DESCRIPTION OF THE FIGURES

• 1 ist eine Explosionszeichnung eines erfindungsgemäßen elastischen Lagers zusammen mit einem ein Befestigungsloch für das elastische Lager aufweisenden Halteblech.
• 2 ist eine Ansicht von oben auf das an dem Halteblech montierte elastische Lager gemäß 1.
• 3 ist ein Vertikalschnitt durch das montierte elastische Lager längs einer in 2 eingezeichneten Schnittlinie A-A, wobei eine in 1 dargestellte Befestigungsschraube weggelassen ist, und
• 4 ist ein Vertikalschnitt durch das montierte elastische Lager längs einer in 2 eingezeichneten Schnittlinie B-B, wobei auch hier die in 1 dargestellte Befestigungsschraube weggelassen ist.

The invention is further explained and described below using preferred exemplary embodiments shown in the figures.

• 1 is an exploded view of an elastic bearing according to the invention together with a retaining plate having a fastening hole for the elastic bearing.
• 2 is a view from above of the elastic bearing mounted on the retaining plate 1 .
• 3 is a vertical section through the mounted elastic bearing along an in 2 drawn section line AA, whereby one in 1 Fastening screw shown is omitted, and
• 4 is a vertical section through the mounted elastic bearing along an in 2 marked cutting line BB, whereby here too the in 1 Fastening screw shown is omitted.

FIGURE DESCRIPTION

That in the 1 until 4 Elastic bearing 1 shown in different representations is intended for mounting on a holding plate 2. The holding plate 2 can be part of a body of a motor vehicle, on which a cooling module is softly elastic via the elastic bearing 1 is supported. For mounting the elastic bearing 1, the holding plate 2 has a fastening hole 3 with a circumferential, horizontally oriented fastening edge 4. The elastic bearing 1 is supported vertically and horizontally on the fastening edge 4. For this purpose, the elastic bearing 1 has a frame 5 made of plastic 6, which is inserted from above into the fastening hole 3 in a form-fitting manner. The fact that the frame 5 is inserted into the fastening hole 3 in a form-fitting manner means that the inserted frame 5 rests against the fastening edge 4 from the inside with an outer circumference 7, rests on the fastening edge 4 from above with a downward-directed stop surface 8 and has locking projections 9 engages under the fastening edge 4 and snaps into place. An elastomer spring 10 is inserted into the frame 5 in a form-fitting and non-positive manner, i.e. in particular also snapped into place. For this purpose, the elastomer spring 10 has horizontally aligned projections 11 which snap into openings 12 in the frame 5. The elastomeric spring 10 comprises a receiving bushing 13 of a substantially rectangular free horizontal cross section for receiving a bearing core 14. The receiving bushing 13 is elastically supported vertically and horizontally on the spring frame 15 via spring arms 16 which run obliquely downwards to a spring frame 15. The projections 11 are formed on the closed spring frame 15. The bearing core 14 is inserted from above into the receiving bushing 13 and locked in the receiving bushing 13 by projections 17, which narrow the free cross section of the receiving bushing 13, engaging in notches 18 in the bearing core 14. The bearing core 14 ends with a fastening plate 19, which rests on top of the receiving bushing 13 and has the fastening holes 20 for fastening to a component to be supported via the elastic bearing. This component can be the cooling module. The component with the attached bearing core 14, the attached elastomer spring 10 and the frame 5 snapped onto it can easily be attached to the holding plate 2 by aligning the frame 5 laterally with respect to the fastening edge 4 by guide surfaces 21 that converge downwards in a funnel shape until its outer circumference 7 rests against the fastening edge 4 from the inside and the locking projections 9 snap into place under the fastening edge. Inserting the frame 5 from above into the fastening hole 3 does not have to be done exactly vertically. Rather, the frame 5 and thus also the component to which the frame 5 is attached via the elastomer spring 10 and the bearing core 18 can be pivoted into the fastening hole 3 about a horizontal transverse axis. In order to secure the assembled elastic bearing 1 on the holding plate 2, a safety hood 22 is provided, which is fastened to the bearing core 4 from below, ie from below the holding plate 2. For this purpose, a fastening screw 23, which extends through a central through hole 24 in the safety hood 22, is screwed into the bearing core 13. The fastening screw 23 has an external thread 25, which itself intersects an internal thread in a fastening hole 26 in the bearing core 14. A relative rotation of the safety hood 22 relative to the bearing core 14 around the through hole 24 is prevented by extensions 27 of the bearing core, which engage in recesses 28 in the safety hood. The safety hood 22 has an upwardly directed stop edge 29, which abuts the holding plate 2 from below via a stop buffer 30 made of elastomeric material and protrudes over the fastening hole 3 via a lateral projection. The safety hood 22 closes the elastic bearing downwards towards the holding plate 2. However, when the bearing core 14 is loaded downwards by the mass of the supported component, the stop buffer 30 has one in the 3 and 4 free vertical distance from the holding plate 2, not shown. Only when the bearing core 14 moves upward relative to the holding plate 2 does the stop edge 29 abut the holding plate 2 via the stop buffer 30. This large-area stop means that even large forces can be safely supported on the holding plate 2. This reliably prevents the bearing core 14 from being unintentionally pulled out of the receiving bushing 13 or the elastomer spring 10 from the frame 5 or the frame 5 from the fastening hole 3.

REFERENCE SYMBOL LIST

1

Elastic bearing

2

retaining plate

3

mounting hole

4

Fastening edge

5

Frame

6

plastic

7

Outer circumference

8th

stop surface

9

locking projection

10

Elastomer spring

11

head Start

12

opening

13

Recording socket

14

Bearing core

15

Spring frame

16

Spring arm

17

head Start

18

Nut

19

mounting plate

20

mounting hole

21

guide surface

22

Safety cover

23

Fastening screw

24

through hole

25

External thread

26

mounting hole

27

appendage

28

recess

29

Stop edge

30

Stop buffer

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was 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 102010005763 A1 [0002]
• DE 102017117142 A1 [0003]

Claims (11)

Elastic bearing (1) for vertically and horizontally supporting a component on a horizontally extending fastening edge (4) of a fastening hole (3), the elastic bearing having - a frame (5) made of plastic (6) for positive insertion from above into the fastening hole (3), - an elastomer spring (10) inserted or to be inserted into the frame (5) from above with a vertically aligned receiving bushing (13), - a bearing core (14) inserted or to be inserted into the receiving socket from above and - a safety hood (22) to be fastened from below to the bearing core (14), the safety hood (22) being dimensioned to cover the fastening hole (3) and parts of the frame (5) reaching downwards through there, and the safety hood ( 22) has an upwardly directed stop edge (29) with a stop buffer (30) made of elastomeric material, the horizontal dimensions of which are larger by a circumferential projection than the hole dimensions of the fastening hole (3). Elastic bearing (1) after Claim 1 , characterized in that the frame (5) has guide surfaces (21) which converge downwards in a funnel shape and which end on an outer circumference (7) of the frame (5) with the hole dimensions. Elastic bearing (1) after Claim 1 or 2 , characterized in that the frame (5) has a downward-facing circumferential stop surface (8) for striking the fastening edge (4) from above. Elastic bearing (1) according to one of the preceding claims, characterized in that the frame (5) has locking projections (9) for engaging under the fastening edge (4). Elastic bearing (1) according to one of the preceding claims, characterized in that the safety hood (22) has a central through hole (24) and that there is a fastening screw (23) which can be screwed in through the through hole (24) from below vertical fastening hole (26) is formed in the bearing core (14). Elastic bearing (1) according to one of the preceding claims, characterized in that the safety hood (22) is made of optionally fiber-reinforced plastic. Elastic bearing (1) according to one of the preceding claims, characterized in that the stop buffer (30) made of elastomeric material is connected to the upwardly directed stop edge (29) in a material and/or form-fitting manner. Elastic bearing (1) according to one of the preceding claims, characterized in that the elastomer spring (10) and the frame (5) are designed to lock into a mutual positive and frictional connection. Elastic bearing (1) according to one of the preceding claims, characterized in that the bearing core (14) and the receiving bush (13) are designed to lock into a mutual positive and frictional connection. Elastic bearing (1) according to one of the preceding claims, characterized in that the elastomer spring (10) has spring arms (16) and a spring frame (15), the spring arms (16) sloping downwards in different directions from the receiving bushing (13). to the spring frame (15). Use of two elastic bearings according to one of the preceding claims for vertically and horizontally supporting a cooling module on horizontally extending fastening edges (4) of two fastening holes (3) spaced apart in a transverse direction in retaining plates (2) of a body of a motor vehicle, the cooling module being connected to the The frame (5) of the elastic bearings (1) attached to it via the bearing cores (14) and the elastomer springs (10) is pivoted about the transverse direction into the fastening holes (3) and the safety hoods (22) are then attached to the bearing cores (14) from below. be attached.

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