AGGREGATE WAREHOUSE

Description

[0001] The invention relates to an assembly mount for a motor vehicle assembly, comprising an inner part, an elastomeric support body in which the inner part is embedded, and an outer part which surrounds the support body.

[0002] An assembly mount of the type mentioned above serves to support a motor vehicle assembly, such as an internal combustion engine, a transmission, or an electric motor, on a vehicle body. Furthermore, an assembly mount increases driving comfort by isolating the vibrations generated by the assembly and dampening road surface excitations.

[0003] Classic engine mounts consist of an inner part that can be connected to the vehicle engine, an elastomeric support body that acts as an insulating and damping element, and an outer part. The outer part can be an outer sleeve, which can be constructed from multiple parts.

[0004] For example, DE 10 2005 058 632 A1 discloses a round bearing comprising an inner bush, an elastomeric bearing element and an outer bush, the outer bush consisting of two halves which are clipped together at their ends.

[0005] To limit the movement of the inner part relative to the outer part, it is common practice to provide stops. This increases the service life of the elastomer support body and thus of the assembly mount.

[0006] DE 11 2013 004 246 T5 discloses a rubber bushing comprising an inner shaft element and intermediate rings connected to each other via a rubber body. The rubber body is connected to an outer cylindrical element that is split in half and comprises a pair of cylinders. The pair of cylinders are connected to each other via fitting projections and fitting holes. To limit the movement of the inner shaft element, stop elements connected to the shaft element are provided.

[0007] Furthermore, DE 10 2015 016 454 A1 discloses an elastic bearing with an elastomer metal element comprising a dimensionally stable inner bearing core and a hollow cylindrical outer shell, the outer shell being formed from two shell halves. Both shell halves have longitudinal gap edges and axially offset tongues that slide under the other shell half when the outer shell is pressed into a tubular bearing housing to create preload, so that the longitudinal gap edges abut each other. Spherical elastomer stops are firmly adhered to the inner bearing core, limiting movement of the elastomer metal element relative to the outer shell.

[0008] EP 1 628 040 A1 discloses a hydraulically damping bearing comprising an anchoring element in an elastic support body. A bearing housing surrounds the support body circumferentially, and a bearing cap is arranged at the end face of the support body. An outer ring is embedded in the support body. The bearing cap is clipped to the outer ring, and the bearing housing is flanged around the edge of the bearing cap.

[0009] DE 10 2004 051 112 B3 discloses a bearing for fastening and supporting a piston rod. It comprises an inner part for the axial end of the damper's piston rod. The inner part is surrounded by an elastomeric bearing body, in which an outer part with snap-in lugs on the outer circumference is received. The outer part is clipped into a housing by means of its snap-in lugs, which is arranged on the outer circumference of the elastomeric bearing body.

[0010] For the aforementioned bearings, the space required for the stops is insufficient to meet the technical requirements regarding damping and stop characteristics. Externally mounted stops also have the disadvantage that mounting is difficult and process-intensive. Furthermore, additional components result in additional costs.

[0011] The invention is based on the object of creating an aggregate bearing that provides sufficient installation space for the integration of stops and is also cost-effective.

[0012] This object is achieved by an aggregate bearing having the features of claim 1. Advantageous embodiments of the aggregate bearing are the subject of the dependent claims.

[0013] The assembly mount according to the invention for a motor vehicle assembly comprises an inner part, an elastomeric support body in which the inner part is embedded, and an outer part which surrounds the support body, wherein the outer part comprises a first part and a second part which are clipped to at least one fastening element connected to the support body.

[0014] Joining the two parts creates a geometry that encloses the support body, creating an undercut and thus an overlap. This overlap can be used as a stop. Since the stops do not require additional installation space or additional costly components, the installation space requirements can be easily met. Furthermore, clipping the two parts together with the fastening element enables easy attachment of the two parts to the support body. Furthermore, clipping the two parts together creates a cost-effective means of securing them during transport.

[0015] Advantageously, the parts have contact surfaces through which they are in contact with one another. Furthermore, the outer part is advantageously designed as an outer sleeve. Furthermore, the support body advantageously has at least one support spring to which the fastening element is attached. Furthermore, the support body can have two fastening elements. Thus, the support body can have two support springs, with a fastening element attached to each support spring.

[0016] In an advantageous embodiment, at least one of the parts has at least one stop on an inner circumferential surface facing the support body. As a result, the internal stops are integrated into the existing components, so that no additional installation space or additional components that incur additional costs are required. The stop can be designed as a shoulder protruding from the inner circumferential surface. Furthermore, the stop can be designed as a recess introduced into the part, which protrudes radially inward from the inner circumferential surface. Preferably, the at least one stop is created during manufacture of the part, for example by forming the part or during injection molding of the part. Advantageously, the at least one part can have multiple stops. Furthermore, each of the parts advantageously has at least one stop on an inner circumferential surface facing the support body.

[0017] In an advantageous embodiment, the at least one fastening element has at least one pair of projections, wherein a first projection engages in a recess in the first part and a second projection engages in a recess in the second part in order to clip the parts to the fastening element. This creates a simple and cost-effective snap-in or clip-on connection which secures the parts to the support body. Advantageously, the projections are rigid and the parts are elastic. To clip the parts to the fastening element, the parts deflect elastically so that the projections snap into the recesses and protrude from them and / or can engage behind them. Furthermore, the recesses are advantageously designed as openings. As a result, the projections protrude from the recesses.

[0018] In an advantageous embodiment, the at least one fastening element has a pair of opposing first projections and a pair of opposing second projections, wherein the first projections engage in recesses in the first part and the second projections engage in recesses in the second part in order to clip the two parts to the fastening element. This creates a secure attachment of the parts to the support body. Preferably, the first projections or the second projections lie on an axis that is orthogonal to a longitudinal axis of the assembly mount. Furthermore, the recesses of each part advantageously lie opposite one another. Advantageously, the recesses of each part lie on an axis that is orthogonal to a longitudinal axis of the assembly mount. Furthermore, the recesses are advantageously designed as openings. As a result, the projections protrude from the recesses.

[0019] In an advantageous embodiment, each projection has a chamfer for insertion into the recess. This facilitates assembly of the parts. The chamfer is advantageously designed as a tapered slope in cross-section. As a result, the projections are formed as obliquely flattened webs.

[0020] In an advantageous embodiment, the at least one fastening element has at least one centering element that engages in recesses in the parts with a form-fitting fit. This centers the two half-shells relative to one another during assembly. It is also ensured that the support body always assumes the correct position within the parts. The centering element is preferably arranged between a first projection and a second projection. Furthermore, the fastening element advantageously has two opposing centering elements, such that a first centering element is arranged between a first projection and a second projection and a second centering element is arranged opposite one another between a first projection and a second projection. In an advantageous embodiment, the centering element is designed as a web extending between the first projection and the second projection in the longitudinal direction of the assembly mount.Furthermore, the recesses advantageously form an opening in the clipped state into which the centering element engages in a form-fitting manner.

[0021] In an advantageous embodiment, each of the parts has a positive-locking connecting element and a corresponding receptacle for the connecting element. This creates a secure positive-locking connection between the two parts, effectively preventing the parts from slipping during transport. In an advantageous embodiment, the connecting element is designed as a pin element protruding from the part, and the receptacle is designed as a blind hole formed in the part, into which the pin element can be inserted. Furthermore, the connecting element and the corresponding receptacle are advantageously arranged on a contact surface of the part.

[0022] In an advantageous embodiment, a recess is formed in the inner circumferential surface of each part, into which the fastening element rests in a form-fitting manner when clipped together. This allows the support body to be fixed in a precise position between the two parts. The recess advantageously corresponds to a contour of the fastening element.

[0023] In an advantageous embodiment, the parts are designed as half-shells and are connected to each other at opposing contact surfaces. The horizontal division of the outer part into two half-shell-shaped parts completely surrounds the support body. In an advantageous embodiment, each half-shell surrounds half of the support body.

[0024] In an advantageous embodiment, the at least one fastening element is connected to the support body in a form-fitting, force-fitting, and / or material-fitting manner. This ensures a secure and sufficient attachment of the fastening element to the support body and thus a secure hold of the two parts on the support body. The fastening element can be pressed onto the support body and / or glued to the support body. Furthermore, the elastomer of the support body can be injection-molded or vulcanized onto the fastening element.

[0025] In an advantageous embodiment, the fastening element is a ring element.

[0026] In an advantageous embodiment, the fastening element and / or the parts are made of plastic. This makes the assembly mount lightweight and also cost-effective to manufacture. Furthermore, the fastening element and / or the parts can be made of fiber-reinforced plastic. Furthermore, the fastening element and / or the parts can be made of metal, or the fastening element can be made of metal and the parts can be made of plastic. Alternatively, the fastening element can be made of plastic and the parts can be made of metal.

[0027] The assembly mount and other features and advantages are explained in more detail below using exemplary embodiments, which are schematically illustrated in the figures. Here: Fig. 1 a perspective view of an assembly bearing according to a first embodiment with two non-clipped half-shells; Fig. 2 a section along the line II-II of Fig. 1without inner part; Fig. 3 an enlarged view of section III from Fig. 2 ; Fig. 4 a perspective view of the aggregate bearing with clipped half shells; Fig. 5 a section through the aggregate bearing along the line IV-IV of Fig. 4 without inner part; Fig. 6 an enlarged view of section VI of Fig. 5 ; Fig. 7 a section along the line VII-VII in Fig. 4 ; Fig. 8 a perspective view of an assembly bearing according to a second embodiment with two non-clipped half-shells; Fig. 9 a section along the line IX-IX of Fig. 8 ; Fig. 10 an enlarged view of section X of Fig. 9 ; Fig. 11 a perspective view of the assembly bearing according to the second embodiment with clipped half shells; Fig. 12 a section along the line XII-XII of Fig. 11 ; Fig. 13 an enlarged view of section XIII in Fig. 12; and Fig. 14 a section along the line XIV-XIV in Fig. 11 .

[0028] In the Figures 1 to 7 An assembly mount 10 according to a first embodiment is shown, which serves to mount a motor vehicle assembly (not shown), such as an internal combustion engine, a transmission, or an electric motor, on a vehicle body (not shown). The assembly mount 10 isolates the vibrations generated by the motor vehicle assembly and also dampens road surface excitations.

[0029] As can be seen from a summary of the Figures 1 , 4 and 7 As can be seen, the assembly bearing 10 has an inner part 12, an elastomeric support body 14 in which the inner part 12 is embedded, and an outer part 16 which surrounds the support body 14.

[0030] The inner part 12 is made of metal and has a through-opening 18 into which a support arm or bolt (not shown) can be inserted in order to connect the assembly bearing 10 to a motor vehicle assembly.

[0031] As particularly in Fig. 7 As can be seen, the elastomeric support body 18 surrounds the inner part 12, wherein the support body 14 is integrally connected to the inner part 12, in particular by injection molding and / or vulcanization. The support body 18 has a first support spring 20, which protrudes from the inner part 12 in the radial direction R.

[0032] The outer part 16 is designed as an outer sleeve and has a first part 22 and a second part 24, which according to the Figures 1, 2 , and 5are formed as half-shells 26 and are connected to each other at opposing contact surfaces 54. The two half-shells 26 are made of plastic, in particular fiber-reinforced plastic, but can also be made of metal. Each of the half-shells 26 surrounds the support body 14 by half.

[0033] For fastening the two half-shells 26 to the support body 14, the latter has a fastening element 28 in the form of a ring element 30, which is connected to the first support spring 20 in a form-fitting, force-fitting and / or material-fitting manner.

[0034] As particularly in the Figures 2 and 3As can be seen, the ring element 30 is connected to an outer side 32 of the first support spring 20, or the ring element 30 surrounds the outer circumference of the first support spring 20. The ring element 30 can be pressed onto the outer side 32 of the first support spring 20 and / or integrally connected thereto, for example by gluing, by inserting the fastening element 28 into an injection mold and subsequently injecting the elastomer of the support body 18, or by a two-component injection molding process.

[0035] The two half-shells 26 are clipped to the support body 14, in particular to the fastening element 28, as can be seen from a summary of the Figures 1, 2, 3 , 4, 5 and 6 is evident.

[0036] For this purpose, the fastening element 28 has a pair of projections 34, 36 which engage in corresponding recesses 38 of the half-shells 26 or extend through the recesses 38.

[0037] As particularly in Fig. 2 As can be seen, the fastening element 28 has a pair of opposing first projections 34 and a pair of opposing second projections 26, wherein the first projections 34 engage in recesses 38 of the first part 22, and the second projections 36 engage in recesses 38 of the second part 24. As a result, the two half-shells 26 are clipped to the fastening element 28. During assembly of the two half-shells 26, the half-shells 26 are elastically deflected so that the projections 34, 36 can be inserted into the recesses 38.

[0038] As particularly in Fig. 3 As can be seen, each projection 34, 36 has an insertion bevel 40 which facilitates the insertion of the projections 34, 36 into the recesses 38.

[0039] Between a first projection 34 and a second projection 36, the fastening element 28 has a centering element 42, which is designed as a web 44 extending in the longitudinal direction L of the assembly bearing. The centering element 42 engages in a form-fitting manner in an opening 48, which is formed by two opposing recesses 46 of the half-shells 26, as shown in the Figures 4, 5 and 6 can be seen. The centering element 42 serves to center the two half-shells 26 relative to each other and also to position the support body 14 between the two half-shells 26.

[0040] As further stated in the Figures 1 and 7As can be seen, each of the half-shells 26 also has a positive-locking connecting element 50 and a corresponding receptacle 52 for the connecting element 50. The connecting element 50 is designed as a pin element 56 protruding from the contact surface 54, and the receptacle 52 is designed as a blind hole 58 formed in the contact surface 54, into which the pin element 56 engages.

[0041] As also in Fig. 1 As can be seen, a recess 62 is formed in an inner peripheral surface 60 of each half-shell 26, which recess corresponds to the contour of the fastening element 28 and in which the fastening element 28 rests in a form-fitting manner. As a result, the support body 14 is fixed in a precise position in the half-shells 26.

[0042] Each of the half-shells 26 has a stop 64 on the inner peripheral surface 60, which is spaced from the inner part 12 and limits the movements of the inner part 12 relative to the outer part 16, as shown in the Figures 1and 7 can be seen.

[0043] A second embodiment of the assembly bearing 10 is described below, wherein the same reference numerals are used for identical or functionally identical parts.

[0044] In the Figures 8 to 14 A second embodiment of the assembly bearing 10 is shown, which differs from the first embodiment in that the support body 14 has a second support spring 66, wherein each of the support springs 20, 66 is provided with a fastening element 28. For clipping the two half-shells 26 to the two fastening elements 28, each of the half-shells 26 has four recesses 38, into which the projections 34, 36 engage in the clipped state or through which the projections 34, 36 protrude, as shown in the Figures 11 to 13 is evident.

[0045] The stop 64 is formed in the present case as indentations 68 introduced into the half-shells 26, which protrude radially inward from the inner circumferential surface 60. As in Fig. 14 As can be seen, the indentations 68 are arranged between the two support springs 20, 66 when the half-shells 26 are clipped together.

[0046] As in Fig. 8 As can be seen, the half-shells 26 of the second embodiment do not have a positive-locking connecting element 50 and no corresponding receptacle 52 for the connecting element 50. However, it is also conceivable that the half-shells 26 according to the first embodiment have a positive-locking connecting element 50 and a corresponding receptacle 52 for the connecting element 50.

[0047] The assembly mount 10 is characterized by the outer part 16 formed from two half-shells 26, which are clipped together with a fastening element 28 connected to the support body 14. Joining the two half-shells 26 creates an enclosing geometry, which creates an undercut and thus an overlap that can be used as a stop 64. This allows for space-saving requirements to be met and additional components that incur additional costs to be avoided. List of reference symbols

[0048] 10Assembly bearing 12Inner part 14Support body 16Outer part 18Through opening 20First suspension spring 22First part 24Second part 26Half shell 28Fastening element 30Ring element 32Outer side 34First projection 36Second projection 38Recess 40Insertion bevel 42Centering element 44Web 46Recess 48Opening 50Connecting element 52Receptacle 54Contact surface 56Pin element 58Blind hole 60Inner circumferential surface 62Recess 64Stop 66Second suspension spring 68Recess RRadial direction LLongitudinal axis

Claims

1. Unit bearing (10) for a motor vehicle unit, comprising an inner part (12), an elastomeric support body (14) in which the inner part (12) is embedded, and an outer part (16) which surrounds the support body (14), wherein the outer part (16) comprises a first part (22) and a second part (24), characterised in that the first part (22) and the second part (24) are clipped together with at least one fastening element (28) connected to the support body (14).

2. Unit bearing (10) according to claim 1, characterised in that at least one of the parts (22, 24) has at least one stop (64) on an inner circumferential surface (60) facing the support body (14).

3. Unit bearing (10) according to claim 1 or 2, characterised in that the at least one fastening element (28) has at least one pair of projections (34, 36) , wherein a first projection (34) engages in a notch (38) of the first part (22) and a second projection (36) engages in a notch (38) of the second part (24) in order to clip the parts (22, 24) to the fastening element (28).

4. Unit bearing (10) according to claim 3, characterised in that each projection (34, 36) has an insertion chamfer (40) for insertion into the notch (38).

5. Unit bearing (10) according to one of the preceding claims, characterised in that the at least one fastening element (28) has at least one centring element (42) which engages positively in recesses (46) of the parts (22, 24).

6. Unit bearing (10) according to one of the preceding claims, characterised in that each of the parts (22, 24) has a form-fitting connecting element (50) and a corresponding receptacle (52) for the connecting element (50).

7. Unit bearing (10) according to one of the preceding claims, characterised in that a deepening (62) is formed in an inner circumferential surface (60) of each part (22, 24), into which the fastening element (28) fits positively in the clipped state.

8. Unit bearing (10) according to one of the preceding claims, characterised in that the parts (22, 24) are designed as half-shells (26) and are connected to each other at opposing contact surfaces (54).

9. Unit bearing (10) according to one of the preceding claims, characterised in that the at least one fastening element (28) is connected to the support body (14) in a form-fitting, force-fitting and / or material-fitting manner.

10. Unit bearing (10) according to one of the preceding claims, characterised in that the fastening element (28) is a ring element (30).

11. Unit bearing (10) according to one of the preceding claims, characterised in that the fastening element (28) and / or the parts (22, 24) are made of plastic.