Tilt cylinder bearing

Abstract

Tilting cylinder bearing (2), comprising a bearing core (4) through which a longitudinal axis (Z) extends, a carrier ring (6) which is arranged on the outer circumference of the bearing core (4) and is mounted on the bearing core (4) so ​​as to be rotatable in the circumferential direction (U), an elastomer ring (8) which is arranged on the outer circumference of the carrier ring (6) and is fixedly connected to the carrier ring (6), two axial stop rings (9) which are arranged axially on both sides of the carrier ring (6), characterized in that the elastomer ring (8) forms two fixing rings (82) and a receptacle (84) for a receiving eye (100), wherein the fixing rings (82) axially delimit the receptacle (84), and the axial stop rings (9) have an overlap (AO) in the axial direction (A) with the receptacle (84).

Description

[0001] The invention relates to a tilt cylinder bearing according to claim 1.

[0002] Tipper cylinder bearings are designed to make a truck cab tiltable. Tipper cylinder bearings represent the bearing point at the cab-side end of a tipper cylinder. Current tipper cylinder bearings typically include a central elastomer body that is laterally guided.

[0003] However, these systems lack an axial end stop for high loads and therefore sometimes fail prematurely. Furthermore, conventional bearings are subjected to large torsional displacements, which lead to torsional slippage between the bearing core and the elastomer body. As a result, fretting wear and even premature failure can be observed in practice.

[0004] Common tilt cylinder bearings also sometimes feature an outer sleeve that is either vulcanized to the elastomer body. A cavity in the elastomer body arranged radially within the outer sleeve can therefore only be created if the tilt cylinder bearing is split transversely. However, this requires multiple components and a complex manufacturing process. Alternatively, the outer sleeve is not vulcanized to the elastomer body but pressed on. While this eliminates the need for splitting, this carries the risk of the tilt cylinder bearing axially moving out of the outer sleeve.

[0005] Document CN 1 04 827 840 A defines a bushing with an inner lining tube surrounded by a second lining tube, over which an outer layer sleeve is guided. The latter two have self-lubricating properties. The outer layer sleeve is rotatably mounted on the lining tube and is in turn surrounded and connected to a flexible sleeve.

[0006] DE 198 20 773 C2 describes a spherical plain bearing in which a rubber layer is vulcanized onto the outer cylinder surface of an outer tube. This outer tube is, in turn, mounted on an inner tube. These tubes are held in place by frictional engagement, preventing rotation up to a certain breakaway torque.

[0007] German Patent Application DE 26 23 870 A1 discloses an elastic control arm bearing, in which two inner bushing halves can be clamped relative to the steering eye and to each other by means of clamping sleeves. An elastic intermediate layer is provided between the steering eye and the inner bushings, through which a sheet metal part penetrates, to which the intermediate layer is vulcanized.

[0008] The object of the invention is therefore to provide a tilt cylinder bearing which is better designed with regard to the above-mentioned aspects.

[0009] Main features of the invention are defined in the characterizing part of claim 1. Embodiments are the subject of claims 2 to 10.

[0010] According to the invention, a tilt cylinder bearing is therefore proposed, comprising a bearing core through which a longitudinal axis extends, a carrier ring which is arranged on the outer circumference of the bearing core and is mounted on the bearing core so as to be rotatable in the circumferential direction, an elastomer ring which is arranged on the outer circumference of the carrier ring and is firmly connected to the carrier ring, two axial stop rings which are arranged axially on both sides of the carrier ring, wherein the elastomer ring forms two fixing rings and a receptacle for a receptacle eye, wherein the fixing rings axially delimit the receptacle, and the axial stop rings have an overlap in the axial direction with the receptacle.

[0011] The carrier ring supports the elastomer ring. The combination of the rotatably mounted carrier ring, the elastomer locking rings arranged on both sides of the carrier ring mount, and the axial stop rings overlapping on both sides of the locking rings creates a tilt cylinder bearing that reliably absorbs high axial forces and provides a defined sliding function in a surprisingly cost-effective and functional manner.

[0012] A plain bearing between the bearing core and the support ring allows the bearing core and support ring to rotate freely relative to each other. This allows the bearing core, with its firmly attached components, to rotate around its longitudinal axis relative to a mounting eye. The tilt cylinder bearing can be secured in a mounting eye, for example, in a driver's cab, using the mounting.

[0013] The inner circumferential surface of the carrier ring forms a sliding surface for its bearing support, allowing rotation, on the bearing core. The end faces of the carrier ring each form an axial sliding surface for its bearing support, allowing rotation, on the axial stop rings. This allows the axial stop rings to simultaneously support the carrier ring, reducing the number of components and creating a compact bearing.

[0014] The axial stop rings form axial limits for the receptacle or the receptacle eye arranged therein. They serve to secure the receptacle eye. Each axial stop ring can have a contact surface for the adjacent fixing ring on its side facing a transverse center plane of the tilt cylinder bearing. This contact surface can run parallel to the transverse center plane. It is conceivable for the entire side of the axial stop ring facing the transverse center plane to run parallel to the transverse center plane, preferably continuously and flat. This makes it possible to create a compact bearing. The axial stop rings can be arranged at the axial ends of the bearing core, for example in the force flow of the screw connection. This enables secure fixing of the axial stop rings and an overall compact or narrow tilt cylinder bearing. The axial stop rings can have a larger outer diameter than the bearing core.This allows the bearing core to be designed compactly to save installation space.

[0015] To prevent axial displacement of the receiving eyelet, the receiving eyelet can be located directly within the elastomer ring; the mount serves this purpose. To ensure axial guidance of the receiving eyelet, the elastomer ring features locking rings located axially on both sides of the mount and thus of the receiving eyelet. These locking rings also serve as elastomer axial stop buffers and to minimize noise.

[0016] The locking rings can be arranged axially between the support and one of the axial stop rings (preferably directly) and extend radially into the overlap. The locking rings can each have an axial clearance to the adjacent axial stop ring or can rest directly against it or after cardanic bearing deflection.

[0017] The axial clearance prevents tribological wear of the locating rings due to friction with the axial stop rings under torsional loads. The locating rings can extend in the radial direction.

[0018] The bearing core may have a bearing core sliding surface on its outer circumference, which supports the carrier ring in a sliding manner. The carrier ring may have a radial carrier ring sliding surface, via which it is mounted on the bearing core. The bearing core sliding surface and the radial carrier ring sliding surface can slide against each other.

[0019] According to a conceivable refinement of the tilt cylinder bearing, the axial stop rings can project radially beyond the elastomeric locating rings. The locating rings are thus set back from the axial stop rings in the radial direction. This provides the locating rings with an axial contact surface across their entire radial extent, enabling a defined contact. Furthermore, when the locating rings are subjected to axial loading, the elastomer is squeezed away from the corresponding axial stop ring, resulting in it being displaced along a surface in a way that protects the material and is not pushed over an outer radial edge of the axial stop ring, which places a material load on it.

[0020] According to a further development of the tilt cylinder bearing, the carrier ring can be a plastic carrier ring. This allows the geometry of the carrier ring to be designed cost-effectively. Furthermore, the elastomer ring can be reliably vulcanized. The plastic carrier ring can be made of a thermosetting or thermoplastic material, for example.

[0021] According to a further development of the tilt cylinder bearing, the carrier ring can contain a sliding modifier. This allows the material properties to be specifically tailored to the rotatable bearing on the bearing core. The sliding modifier can be present in the material or compound of the carrier ring, for example, compounded into the base polymer. The sliding modifier can reduce the sliding friction between the bearing core sliding surface and the radial carrier ring sliding surface. The sliding modifier serves at least to reduce tribological wear between the carrier ring and the bearing core. Additives such as PTFE, molybdenum disulfite, graphite, and / or silicone oils incorporated into the material or compound can serve as sliding modifiers. Alternatively or additionally, the sliding modifier can comprise non-abrasive fibers, which also serve as fiber reinforcement.For example, the material or compound can also contain carbon nanofibers, carbon fibers that have both a tribology-reducing and strength-enhancing effect, and / or aramid fibers as reinforcing fibers.

[0022] According to a further development of the tilt cylinder bearing, the bearing core sliding surface of the bearing core can have or form a sliding friction reduction layer. The sliding modifier can reduce the sliding friction between the bearing core sliding surface and the radial carrier ring sliding surface. The sliding friction reduction layer can form the bearing core sliding surface and / or be arranged on the outer circumference of the bearing core, preferably continuously in the circumferential direction. Thus, the sliding bearing is independent of the orientation of the components. The sliding friction reduction layer can comprise, for example, a sliding varnish or a powder coating. It may also be possible for the carrier ring compound to comprise cost-effective glass fibers for reinforcement, without significant tribological wear being expected.

[0023] According to a further development of the tilt cylinder bearing, the elastomer ring can be constructed in one or two pieces. The one-piece elastomer ring is cost-effective to manufacture and requires a low-complexity vulcanization tool cavity. Furthermore, it is possible to coat a radial stop ring with an elastomer layer, thereby specifically adjusting the stop progression. The two-piece elastomer ring can comprise two unconnected elastomer pieces. This increases design freedom, as less of the carrier ring's surface can be covered with elastomer. Areas of the carrier ring can then be exposed or uncovered, for example, the radial stop ring. This can be designed, in particular, on the radial outer circumference with respect to the radial stop ring, which means that no elastomer is in the radial load path of the bearing.This also prevents damage to the elastomer from high radial loads, thus ensuring more consistent bearing properties. Furthermore, a two-piece elastomer ring can be designed more compactly, for example, in terms of its outer diameter.

[0024] According to a conceivable further development of the tilt cylinder bearing, the elastomer ring can be centered relative to a transverse center plane of the tilt cylinder bearing. This allows a symmetrical force flow to be realized in the tilt cylinder bearing.

[0025] According to a further development of the tilt cylinder bearing, the elastomer ring can be designed without an outer sleeve or can be uncovered on the outer circumference. The elastomer ring thus has no outer sleeve on its outer circumference. It is free on its outer circumference, so that no outer sleeve is interposed between it and a receiving eye. Eliminating an outer sleeve, which the elastomer ring would otherwise be adjacent to on the inner circumference, simplifies the production of the tilt cylinder bearing and is cost-effective, especially if the elastomer ring forms a groove on its outer circumference.

[0026] According to a conceivable further development of the tilt cylinder bearing, the elastomeric mount can be designed to directly accommodate a mounting eyelet. This allows the mounting eyelet to directly contact the elastomer ring.

[0027] According to a further development of the tilt cylinder bearing, the elastomer ring can form a groove on its outer circumference. Under radial load, the elastomer material of the elastomer ring can deflect into the groove. This extends the service life of the elastomer ring. The groove can also define a radial adjustment path or radial free travel for the receiving eye. This allows the tilt cylinder bearing to better decouple even the smallest radial movements, since load is introduced only via the lateral elastomer rings and not via the radial stop ring. This makes the bearing soft even under small deflections. This has acoustic advantages with regard to the transmission of even the smallest vibrations. The groove base can have / form a radial stop or be formed by a radial stop ring. The groove also enables the elastomer ring to act as a spring.

[0028] According to a conceivable further development of the tilt cylinder bearing, the groove can be formed between the fixing rings and / or open outward in the radial direction. This allows the receiving eye to be arranged in the receiving element and cover the groove in the radial direction, creating a hollow space.

[0029] According to a conceivable refinement of the tilt cylinder bearing, the groove walls can be tilted or curved relative to the transverse center plane. The groove walls can form an angle between 30° and 60° with the transverse center plane. This tilted configuration promotes progressive spring behavior and increases the service life of the elastomer.

[0030] According to a conceivable refinement of the tilt cylinder bearing, the groove walls can be spaced closer to the transverse center plane in the axial direction than the locating rings. This allows the elastomer ring to form an elastomer shoulder between each locating ring and the corresponding groove wall, which can support the receiving eye. The elastomer shoulders can each have an outer circumferential surface that, viewed longitudinally, runs parallel to the longitudinal axis.

[0031] According to a conceivable further development of the tilt cylinder bearing, the elastomer ring can be made of natural rubber or compact polyurethane. Conventional tilt cylinder bearings typically use elastomer rings made of microcellular urethane (MCU), which is obtained from petroleum in several intermediate steps. Such elastomer rings are therefore not sufficiently sustainable and also do not have a sufficient service life. Natural rubber, on the other hand, enables a long service life. Compact polyurethane is known for its particularly low abrasion, which makes it suitable for elastomer rings subject to friction or at risk of friction. Axial forces can be superimposed on torsion on the locating rings, subjecting them to corresponding tribological stress between the receiving eye and the axial stop ring.

[0032] According to a further development of the tilt cylinder bearing, the carrier ring can have or form a radial stop ring on its outer circumference. The radial stop ring serves as radial overload protection for the receiving eye. This allows high radial forces to be reliably absorbed by the radial stop ring. The radial stop ring can be centered relative to the transverse center plane. The radial stop ring can extend in the radial direction.

[0033] According to a conceivable further development of the tilt cylinder bearing, the radial stop ring can be formed between the fixing rings. This allows it to be positioned centrally relative to the receiving eye.

[0034] According to a conceivable refinement of the tilt cylinder bearing, the carrier ring can be cylindrical on its outer circumference in the area that is radially aligned with the support. Thus, it is free of radial stoppage, at least in this area. This can reduce the radial space requirement. Cylindrical can mean with a constant diameter.

[0035] According to a conceivable further development of the tilt cylinder bearing, the radial area between the carrier ring and the receptacle, or between the carrier ring and the receptacle and the groove, can be filled, preferably completely, with the elastomer ring. This advantageously fills the available installation space there with resilient material.

[0036] According to a conceivable further development of the tilt cylinder bearing, the radial stop ring can be set back from the receptacle in the radial direction. In the unloaded state (without external force), the receptacle eyelet thus does not rest against the radial stop ring. In the assembled position (tilt cylinder bearing inserted in the receptacle eyelet), a clearance can thus be formed between the outer circumferential stop surface of the radial stop ring and the inner circumferential contact surface of the receptacle eyelet. The clearance can lead through the groove or the cavity. In the radially loaded state, the elastomer ring is therefore compressed first, and only then does the receptacle eyelet come into direct contact with the radial stop ring.

[0037] According to a conceivable refinement of the tilt cylinder bearing, the outer peripheral stop surface of the radial stop ring can form the groove base. This allows for a compact design and a progressive radial stiffness profile, and the radial stop ring can be directly exposed to the receiving eye. Alternatively, the radial stop ring can be elastomer-coated on its outer peripheral side.

[0038] According to a further development of the tilt cylinder bearing, the elastomer ring can form an elastomer layer on the outer circumference of the radial stop ring. This buffers the radial stop ring with elastomer, resulting in lower impact noise.

[0039] According to a conceivable further development of the tilt cylinder bearing, the elastomer layer can have a radial thickness of no more than 2 mm. Due to its thin design, it is particularly resilient to high radial forces and durable.

[0040] According to a further development of the tilt cylinder bearing, the axial stop rings can be in contact with or attached to the bearing core on the outer circumference and / or on the end face of the bearing core. The respective contact or attachment can be exclusive.

[0041] With the outer peripheral arrangement, particularly with the exclusively outer peripheral arrangement, of the axial stop rings, a narrow tilt cylinder bearing can be created; it has a small axial extension. Axial forces can be transmitted directly to adjacent fixing flanges. With the end-face arrangement, particularly with the exclusively end-face arrangement, the bearing core can be designed to be short. The bearing core and carrier ring can, for example, have identical axial extensions. The end-face arrangement can also result in a narrow tilt cylinder bearing. With the combined outer peripheral and end-face arrangement of the axial stop rings, a tilt cylinder bearing can be created that reliably absorbs radial forces from the receiving eye and transmits them to the bearing core and / or directly to adjacent fixing flanges. The fixing flanges can be part of the driver's cab.The tilt cylinder bearing can be mounted between the fixing flanges.

[0042] According to a conceivable further development of the tilt cylinder bearing, the axial stop rings can be arranged in the axial force flow. This applies, for example, to a front-end arrangement of the axial stop rings. Especially when arranged in the axial force flow, they can serve as axial limits for the axial securing of the receiving eye.

[0043] According to a conceivable development of the tilt cylinder bearing, the axial stop rings can support the carrier ring in an axially sliding manner. The carrier ring is thus guided between and by the axial stop rings. This reduces the number of components, as a component specifically designed for the axial support of the carrier ring can be omitted. The axial stop rings can each have an axial stop ring sliding surface facing the carrier ring and supporting the carrier ring in a sliding manner. The carrier ring can have an axial carrier ring sliding surface on each axial side, via which it is supported on the axial stop rings. The axial stop ring sliding surface and the axial carrier ring sliding surface can slide against one another.

[0044] According to a conceivable further development of the tilt cylinder bearing, the axial stop rings can form, by means of their overlap, axial stops on both sides for the support or a support eye that can be arranged therein. The adjacent arrangement of the axial stop rings and support allows for effective axial limitation of the support eye.

[0045] The tilt cylinder bearing can be designed to be attached to a truck cab. For this purpose, the cab can have fixing flanges that can be firmly connected to the cab. The tilt cylinder bearing can be mounted between the fixing flanges. The bearing core and the axial stop rings can, for example, be firmly connected to the fixing flanges, whereas the carrier ring and the elastomer ring can rotate around their longitudinal axes relative to the fixing flanges.

[0046] The tipping cylinder bearing can be designed to be attached to a tipping cylinder of a truck. For this purpose, the tipping cylinder can have a receiving eyelet. The tipping cylinder bearing can be inserted into the receiving eyelet; the receiving eyelet engages the receptacle of the elastomer ring. Thus, the tipping cylinder bearing can connect a truck cab to a tipping cylinder of a truck.

[0047] The elastomer ring can be vulcanized onto the carrier ring or injection-molded using 2K technology. This creates a permanent, material-tight connection between the carrier ring and elastomer ring. The elastomer ring can have a shorter axial extension than the carrier ring. This prevents frictional wear on the elastomer ring caused by axial forces, for example, due to friction on the axial stop rings. Viewed longitudinally, the axial end faces of the elastomer ring can each have a tilted or curved profile relative to the transverse center plane. This can create the axial clearance. This also allows the respective locating ring to fit smoothly or gradually against the corresponding axial stop ring under axial load. Likewise, slight cardan movements of the tilt cylinder bearing are possible without the axial clearance being locally closed and contact occurring between the axial stop ring and the locating ring.The tilted end faces can form an angle between 1° and 20° with the transverse center plane. The curved end faces can extend in the direction of the transverse center plane. Each locking ring can form a contact surface for the receiving eye on its side facing the transverse center plane and a contact surface for the adjacent axial stop ring on its side facing away from the transverse center plane. This allows for the formation of a compact elastomer ring.

[0048] The bearing core can be formed as a single piece. This reduces the number of components and costs. The bearing core can be a hollow cylinder and / or have an axial through-bore. This allows it to be penetrated by a fastening device, such as a screw or bolt, and secured, for example, to fixing flanges. The bearing core can have an axial extension that corresponds at most to the outer distance of the axial stop rings. This creates a compact bearing with a small width. The bearing core can form a contact surface on both sides axially for a fixing flange of a driver's cab. The bearing core can therefore bear directly against the fixing flanges and be fixed between them, preferably in a torsion-proof manner.

[0049] The carrier ring can be constructed in one piece, i.e., from a single piece. This serves to reduce component size and costs. The carrier ring can be completely cylindrical on the inner circumference and either completely cylindrical on the outer circumference or also completely cylindrical on both sides of the radial stop ring. Furthermore, the carrier ring can have draft angles at least partially on the inner circumference, which leads to improved gimbal clearance. The simple geometry reduces manufacturing costs and component complexity.

[0050] The axial stop rings can each form a contact surface for a fixing flange of a driver's cab on their end face facing away from the transverse center plane. Each axial stop ring can therefore bear directly against a fixing flange and thus be fixed, preferably in a torsion-proof manner. This also serves to advantageously position the axial stop rings in the axial force flow. The axial stop rings can be pressed onto the bearing core, thereby reducing the axial installation space required. The axial stop rings can cover the axial end faces of the bearing core, preferably completely. This allows the bearing core to be supported in the axial direction on the axial stop rings. This also serves to advantageously position the axial stop rings in the axial force flow.

[0051] It should be noted that the tilt cylinder bearing and in particular the elastomer ring are generally described in an unloaded state (without external force). Explicit reference may be made to load cases and resulting changes in the position or shape of components. It should also be noted that the tilt cylinder bearing is generally described in a pre-assembled state (prior to assembly). Explicit reference may be made to the assembly position. The assembly position is understood to mean a location of the tilt cylinder bearing in which the tilt cylinder bearing is fixed at or in its intended operational location. The tilt cylinder bearing can be pressed into a receiving structure, for example a receiving eye, and screwed between fixing flanges. It should also be noted that the components described herein are generally disclosed as separate components.Integral designs may be explicitly indicated.

[0052] Further features, details, and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. They show: Fig. 1 a longitudinal sectional view of a tilt cylinder bearing in the assembled position; Fig. 2 a longitudinal sectional view of another tilt cylinder bearing in assembly position; Fig. 3 a longitudinal sectional view of another tilt cylinder bearing in assembly position; Fig. 4 a longitudinal sectional view of another tilt cylinder bearing in assembly position and Fig. 5 a longitudinal sectional view of another tilt cylinder bearing in assembly position.

[0053] In the figures, identical or corresponding elements are each designated by the same reference numerals and are therefore not described again unless expedient. Features already described are not described again to avoid repetition and are applicable to all elements with identical or corresponding reference numerals, unless explicitly excluded. The disclosures contained in the entire description are analogously transferable to identical parts with identical reference numerals or identical component designations. The positional information chosen in the description, such as top, bottom, side, etc., also relates to the directly described or illustrated figure and, in the event of a change in position, is to be transferred analogously to the new position.Furthermore, individual features or combinations of features from the different embodiments shown and described can represent independent, inventive or inventive solutions.

[0054] Fig. 1 shows a tilt cylinder bearing 2 in the assembled position between a receiving eye 100 and fixing flanges 102 on both sides. The receiving eye 100 can be attached to a tilt cylinder, the fixing flanges 102 can be attached to a driver's cab of a truck.

[0055] The tilt cylinder bearing 2 comprises a bearing core 4, through which a longitudinal axis Z extends in the axial direction A. A radial direction R is perpendicular to the longitudinal axis Z, and a circumferential direction U runs around the longitudinal axis Z. The tilt cylinder bearing 2 has a central transverse center plane Q. The bearing core 4 is one-piece and designed as a hollow cylinder. It has an axial through-bore 41 through which a fastening means can engage in order to fasten the tilt cylinder bearing 2 to the fixing flanges 102. The bearing core 4 has an axial extension which corresponds at most to the outer distance of the axial stop rings 9. In Fig. 1, this axial extension is shorter than the outer distance of the axial stop rings 9. The bearing core 4 has an outer peripheral bearing core sliding surface 42, which slidingly supports a carrier ring 6. The bearing core sliding surface 42 can be or include a sliding friction reduction layer 44.

[0056] The tilt cylinder bearing 2 also comprises a carrier ring 6, which is arranged on the outer circumference of the bearing core 4 and is mounted on the bearing core 4 for rotation in the circumferential direction U. The carrier ring 6 is a plastic carrier ring containing a sliding modifier. The inner circumferential surface of the carrier ring 6 forms a sliding surface or a radial carrier ring sliding surface 62 for its mounting on the bearing core 4. The bearing core sliding surface 42 and the radial carrier ring sliding surface 62 can slide against one another - a sliding bearing is formed. The end faces of the carrier ring 6 on both sides each form a sliding surface or axial carrier ring sliding surface 68 for its mounting on the axial stop rings 9 or their axial stop ring sliding surfaces 92. A sliding bearing is also formed here. The carrier ring 6 forms a radial stop ring 66 on its outer circumference, wherein the radial stop ring 66 is arranged centered to the transverse center plane Q.The radial stop ring 66 is also formed between two elastomeric fixing rings 82. The radial stop ring 66 extends in the radial direction R. However, the radial stop ring 66 protrudes in the radial direction R relative to a receptacle 84. Thus, in the illustrated assembly position, an air gap is formed between the outer peripheral stop surface of the radial stop ring 66 and the inner peripheral contact surface of the receptacle eye 100. The air gap extends through a groove 86 and also through a cavity defined by the receptacle eye 100. The carrier ring 6 is formed in one piece. It is continuously cylindrical on the inner peripheral side and also continuously cylindrical on both sides of the radial stop ring 66 on the outer peripheral side.

[0057] The tilt cylinder bearing 2 further comprises an outer sleeve-free elastomer ring 8, which is arranged on the outer circumference of the carrier ring 6 and is firmly connected to the carrier ring 6. The elastomer ring 8 is vulcanized to the carrier ring 6 and in the Fig. 1 and Fig. 3 is designed in two parts. The elastomer ring 8 has a shorter axial extent than the carrier ring 6. The elastomer ring 8 forms the two fixing rings 82 which extend in the radial direction R. The elastomer ring 8 also forms the receptacle 84 for the receiving eye 100, wherein the fixing rings 82 axially delimit the receptacle 84 and the receiving eye 100 is located directly in the receptacle 84. The fixing rings 82 are each arranged in the axial direction A directly between the receptacle 84 and one of the axial stop rings 9. Each fixing ring 82 can form a contact surface for the receiving eye 100 on its side facing the transverse center plane Q and a contact surface for the adjacent axial stop ring 9 on its side facing away from the transverse center plane Q. In addition, the fixing rings 82 protrude in the radial direction R into an overlap AO. The fixing rings 82 each have an axial clearance L to the adjacent axial stop ring 9.The elastomer ring 8 forms the outer peripheral groove 86. The groove 86 is formed between the fixing rings 82 and is open outwards in the radial direction R. This allows the receiving eye 100 to be arranged in the receptacle 84 and to cover the groove 86 in the radial direction R to delimit the cavity. The groove 86 comprises groove walls 87 formed by the elastomer ring 8 and a groove base formed by the radial stop ring 66 or its outer peripheral stop surface. The groove walls 87 are tilted with respect to the transverse center plane Q and are at a shorter distance from the transverse center plane Q in the axial direction A than the fixing rings 82. An elastomer shoulder 89 is formed by the elastomer body 8 between each groove wall 87 and the corresponding fixing ring 82. The elastomer shoulders 89 each have an outer peripheral surface which, viewed longitudinally, runs parallel to the longitudinal axis Z.The axial end faces of the elastomer ring 8 are each tilted relative to the transverse center plane Q. This allows the axial air space L to be formed.

[0058] The tilt cylinder bearing 2 further comprises the two axial stop rings 9, which are arranged axially on both sides of the carrier ring 6 and at the axial ends of the bearing core 4. The axial stop rings 9 have an overlap AO in the axial direction A with the receptacle 84 in order to form axial stops on both sides for the receptacle 84 or the receiving eye 100 arranged therein. The axial stop rings 9 form axial limits for the receptacle 84 or the receiving eye 100 arranged therein. Each axial stop ring 9 has a contact surface for the adjacent fixing ring 82 on its side facing the transverse center plane Q. The entire side of the axial stop ring 9 facing the transverse center plane Q runs continuously parallel and flat to the transverse center plane Q. Therefore, the contact surface for the adjacent fixing ring 82 also runs parallel to the transverse center plane Q. The axial stop rings 9 project beyond the elastomer fixing rings 82 in the radial direction R.The axial stop rings 9 are arranged on the outer circumference and end face of the bearing core 4. The axial stop rings 9 are pressed onto the outer circumferential surface of the bearing core 4. The axial stop rings 9 are arranged in the axial force flow. The axial stop rings 9 support the carrier ring 6 in an axially sliding manner by means of axial stop ring sliding surfaces 92, which each face the carrier ring 6 and its axial carrier ring sliding surfaces 68. The axial stop rings 9 each form a contact surface for a fixing flange 102 on their end face facing away from the transverse center plane Q. The axial stop rings 9 also completely cover the axial end faces of the bearing core 4. The bearing core 4 does not bear against the fixing flanges 102.

[0059] Fig. 2 shows a further embodiment of the tilt cylinder bearing 2 in the assembled position. To avoid repetition, Fig. 2 only the differences to Fig. 1. Features already described but not repeated again shall be deemed to be disclosed and described. The elastomer ring 8 is now constructed in one piece and forms an elastomer layer 88 on the outer circumference of the radial stop ring 66. The groove base is therefore formed by the elastomer layer 88, which is supported behind the radial stop ring 66 in the radial direction R.

[0060] Fig. 3 shows a further embodiment of the tilt cylinder bearing 2 in the assembled position. To avoid repetition, Fig. 3 only the differences to Fig. 1. Features already described but not repeated again shall be deemed to be disclosed and described. It is evident that the two axial stop rings 9 are now arranged exclusively on the outer circumference of the bearing core 4. The bearing core 4 has contact surfaces for the fixing flanges 102 on both axial sides of its end faces. Fig. 3, the axial extension of the bearing core 4 is equal to the outer distance of the axial stop rings 9.

[0061] Fig. 4 shows a further embodiment of the tilt cylinder bearing 2 in the assembled position. To avoid repetition, Fig. 4 only the differences to Fig. 1. Features already described but not repeated again shall be deemed to have been disclosed and described. The elastomer ring 8 is now constructed in one piece and forms an elastomer layer 88 on the outer circumference of the radial stop ring 66. The groove base is therefore formed by the elastomer layer 88, which is supported behind the radial stop ring 66 in the radial direction R. It is also evident that the two axial stop rings 9 are now arranged exclusively on the end face of the bearing core 4. The bearing core 4 and the carrier ring 6 have identical axial extensions.

[0062] Fig. 5 shows a further embodiment of the tilt cylinder bearing 2 in the assembled position. To avoid repetition, Fig. 5 only the differences to Fig.4. Features already described but not repeated again shall be deemed to have been disclosed and described. The carrier ring 6 no longer has a radial stop ring. Furthermore, the carrier ring 6 is cylindrical on its outer circumference in the area that is aligned with the receptacle 84 in the radial direction R. Rather, this volume is part of the elastomer ring 8. The radial space between the carrier ring 6 on the one hand and the receptacle 84 and the groove 86 on the other hand is completely filled by the elastomer ring 8.

[0063] The invention is not limited to one of the above-described embodiments, but can be modified in a variety of ways. All features and advantages apparent from the claims, the description, and the drawings, including structural details, spatial arrangements, and method steps, may be essential to the invention both individually and in a wide variety of combinations.

[0064] The scope of the invention includes all combinations of at least two of the features disclosed in the description, the claims and / or the figures.

[0065] To avoid repetition, features disclosed by the device should also be considered as disclosed by the method and claimable. Likewise, features disclosed by the method should also be considered as disclosed by the device and claimable. List of reference symbols 2 tilt cylinder bearings 4 bearing core 6 carrier ring 8 Elastomer ring 9 Axial stop ring 41 Axial through hole 42 Bearing core sliding surface 44 Sliding friction reduction layer 62 radial carrier ring sliding surface 66 Radial stop ring 68 axial carrier ring sliding surface 82 Fixing ring 84 recording 86 groove 87 groove wall 88 Elastomer layer 89 Elastomer shoulder 92 Axial stop ring sliding surface 100 recording eyes 102 Fixing flange A axial direction AO coverage L Axial air space Q transverse median plane R Radial direction U circumferential direction Z longitudinal axis

Claims

[1] Tilting cylinder bearing (2), comprising a bearing core (4) through which a longitudinal axis (Z) extends, a carrier ring (6) which is arranged on the outer circumference of the bearing core (4) and is rotatably mounted on the bearing core (4) in the circumferential direction (U), an elastomer ring (8) which is arranged on the outer circumference of the carrier ring (6) and is firmly connected to the carrier ring (6), two axial stop rings (9) which are arranged axially on both sides of the carrier ring (6), characterized by that the elastomer ring (8) forms two fixing rings (82) and a receptacle (84) for a receiving eye (100), wherein the fixing rings (82) axially delimit the receptacle (84), and the axial stop rings (9) have an overlap (AO) in the axial direction (A) with the receptacle (84). [2] Tilt cylinder bearing (2) according to claim 1, characterized by that the carrier ring (6) is a plastic carrier ring. [3] Tilt cylinder bearing (2) according to one of the preceding claims, characterized bythat the carrier ring (6) has a sliding modifier. [4] Tilt cylinder bearing (2) according to one of the preceding claims, characterized by that a bearing core sliding surface (42) of the bearing core (4) has or forms a sliding friction reducing layer (44). [5] Tilt cylinder bearing (2) according to one of the preceding claims, characterized by that the elastomer ring (8) is formed in one piece or in two pieces. [6] Tilt cylinder bearing (2) according to one of the preceding claims, characterized by that the elastomer ring (8) is designed without an outer sleeve. [7] Tilt cylinder bearing (2) according to one of the preceding claims, characterized by that the elastomer ring (8) forms an outer peripheral groove (86). [8] Tilt cylinder bearing (2) according to one of the preceding claims, characterized by that the carrier ring (6) has or forms a radial stop ring (66) on the outer circumference. [9] Tilt cylinder bearing (2) according to claim 8, characterized by that the elastomer ring (8) forms an elastomer layer (88) on the outer circumference of the radial stop ring (66). [10] Tilt cylinder bearing (2) according to one of the preceding claims, characterized by that the axial stop rings (9) rest or are fastened to the bearing core (4) on the outer circumference and / or the front side.

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