Chassis component for a motorcycle

Abstract

Chassis component with - a component housing (2) which encloses a component housing interior (3) extending in an axial direction (x) and is provided with a component housing opening (4) provided at an axial end of the component housing interior (3), - a joint (6) which has a joint housing (7) introduced into the component housing interior (3) and a joint inner part (8) movably mounted therein, characterized by - a bearing (11) provided in the component housing interior (3), by means of which the joint housing (7) is mounted in the component housing interior (3) so as to be rotatable about an axis of rotation (12) extending in the axial direction (x) relative to the component housing (2), and - a radial shaft sealing ring (13) which is introduced into the component housing interior (3), surrounds the joint housing (7) and is arranged in the axial direction (x) above the bearing (11), which seals the joint housing (7) against the component housing (2) in the region of the component housing opening (4), and - a protective ring (14) surrounding the joint (6), arranged in the axial direction (x) above the radial shaft sealing ring (13) and covering the latter, which is fastened to the component housing (2).

Description

[0001] The invention relates to a chassis component, in particular for a motorcycle, comprising a component housing which encloses a component housing interior extending in an axial direction and is provided with a component housing opening provided at an axial end of the component housing interior, a joint which has a joint housing introduced into the component housing interior and a joint inner part movably mounted therein.

[0002] Such a chassis component is known from the generic document DE 10 2019 130 169 A1.

[0003] From DE 37 08 580 A1, a chassis component is also known with a component housing which encloses a component housing interior extending in an axial direction and is provided with a component housing opening provided at an axial end of the component housing interior, and with a bearing provided in the component housing interior, by means of which bearing the joint housing is mounted in the component housing interior so as to be rotatable about an axis of rotation extending in the axial direction relative to the component housing.

[0004] In the chassis component mentioned above, leaks can occur in the area of ​​the radial shaft seal during operation, for example, while riding a motorcycle with the chassis component, in rain and / or due to spray, especially when the joint housing is rotated relative to the component housing. If such a leak occurs, water, possibly together with other contaminants, can penetrate into the interior of the component housing and cause damage.

[0005] Based on this, the invention is based in particular on the object of being able to prevent the penetration of water into the interior of the component housing.

[0006] This object is achieved according to the invention by a chassis component according to claim 1. Preferred developments of the invention are given in the subclaims and in the following description.

[0007] A chassis component, in particular for a motorcycle, comprising a component housing which encloses a component housing interior extending in an axial direction and is provided with a component housing opening provided at one axial end of the component housing interior, a joint which has a joint housing introduced into the component housing interior and a joint inner part movably mounted therein, a bearing provided in the component housing interior, by means of which the joint housing is mounted in the component housing interior so as to be rotatable about an axis of rotation extending in the axial direction relative to the component housing, and a radial shaft sealing ring introduced into the component housing interior, surrounding the joint housing and arranged in the axial direction above the bearing, which seals the joint housing relative to the component housing in the region of the component housing opening,is further developed according to the invention in particular by a protective ring which surrounds the joint, is arranged in the axial direction above the radial shaft sealing ring and covers the latter, in particular axially, and is fastened to the component housing.

[0008] The protective ring can reduce the risk of water penetrating the interior of the component housing due to rain or spray during operation of the chassis component, especially when riding a motorcycle with the chassis component.

[0009] One or any direction extending transversely to the axial direction and / or transversely to the axis of rotation is referred to in particular as a radial direction. A direction extending around the axis of rotation is preferably referred to as a circumferential direction. The term "at least one" also includes, in particular, the meaning of "one" or "exactly one."

[0010] The bearing is, in particular, a pivot bearing. The bearing is preferably a rolling bearing. For example, the bearing is a ball bearing. The bearing is preferably installed in the interior of the component housing. The bearing advantageously surrounds the joint housing.

[0011] The bearing preferably extends circumferentially around the joint housing. The radial shaft seal preferably extends circumferentially around the joint housing. The protective ring advantageously surrounds the joint housing. In particular, the protective ring extends circumferentially around the joint and / or the joint housing.

[0012] The component housing is preferably provided with a component housing base, in particular provided at another axial end of the component housing interior. Advantageously, the component housing opening is located opposite the component housing base, in particular in the axial direction, preferably at a distance.

[0013] Preferably, the joint and / or the joint housing and / or the inner joint part extends, in particular in the axial direction, through the component housing opening out of the component housing and / or out of the component housing interior. For example, the joint and / or the joint housing and / or the inner joint part extends in a direction facing away from the component housing base through the component housing opening out of the component housing and / or out of the component housing interior. The component housing is preferably made of metal, in particular of aluminum or a ferrous material such as steel.

[0014] The joint housing preferably encloses a joint housing interior extending in the axial direction and is preferably provided with a joint housing opening provided at one axial end of the joint housing interior. Preferably, the inner joint part is movably and / or slidably mounted in the joint housing interior. Advantageously, a bearing shell is introduced into the joint housing interior, in which bearing shell the inner joint part is movably and / or slidably mounted. In particular, the inner joint part is thereby movably mounted in the joint housing. Preferably, the inner joint part extends, in particular in the axial direction, through the joint housing opening out of the joint housing and / or out of the joint housing interior. The inner joint part is preferably a ball stud provided with a joint ball, which is movably and / or slidably mounted with its joint ball in the joint housing and / or in the bearing shell.The bearing shell is advantageously a spherical shell. The joint is, in particular, a ball joint. The joint housing is preferably made of metal, in particular aluminum or a ferrous material such as steel. The inner joint part is preferably made of metal, in particular aluminum or a ferrous material such as steel. The bearing shell is advantageously made of plastic, for example, a thermoplastic.

[0015] Preferably, a sealing bellows which surrounds the inner joint part is connected, in particular firmly, to the joint housing and extends from the joint housing to the inner joint part. The sealing bellows preferably bears, in particular sealingly, against the inner joint part, advantageously with a sealing bellows end on the inner joint part side. The sealing bellows is advantageously made of an elastomer, such as rubber. In particular, the sealing bellows surrounds the joint housing opening. The sealing bellows preferably bears, in particular sealingly, against the joint housing, advantageously with a sealing bellows end on the joint housing side. The sealing bellows preferably engages, advantageously with one or its sealing bellows end on the joint housing side, in a bellows groove which is introduced into the joint housing and in particular surrounds the inner joint part and / or the joint housing opening and is preferably open in the axial direction. The bellows groove is advantageously annular.In particular, the bellows groove surrounds the axis of rotation.

[0016] Preferably, the protective ring is arranged outside the interior of the component housing. Preferably, the protective ring is attached to the component housing by frictional engagement, form-fitting engagement, and / or by material bonding, such as by gluing.

[0017] According to an advantageous embodiment, the protective ring has an outer wall region extending in the axial direction and surrounding the rotation axis, and a cover region extending radially inward from the outer wall region transversely to the axial direction, in particular annular and / or surrounding the rotation axis. Thus, the radial shaft seal is protected by the protective ring from the axial top and from the radial outside.

[0018] The outer wall region preferably extends away from the cover region in a direction facing the component housing and / or the joint housing. The cover region is preferably spaced apart, particularly axially, from the radial shaft seal. Advantageously, the outer wall region merges into the cover region. In particular, the transition from the outer wall region to the cover region is rounded and / or curved.

[0019] The protective ring is preferably attached to the component housing by the outer wall region. The protective ring is preferably attached to the component housing by the outer wall region in a frictionally engaged and / or positively engaged and / or materially bonded manner. The radial shaft seal is advantageously arranged in the axial direction between the bearing and the cover region. For example, the radial shaft seal is covered by the cover region, in particular axially.

[0020] According to a first advantageous variant, the component housing has an edge region surrounding the component housing opening, which edge region is in particular surrounded by the outer wall region. Advantageously, the outer wall region bears, in particular radially, against the edge region. For example, the outer wall region is preferably firmly connected to the edge region. The edge region can thus be used, for example, to fasten the protective ring. For example, the outer wall region is frictionally and / or positively and / or materially connected to the edge region. Preferably, the outer wall region sits firmly on the edge region. Preferably, the outer wall region sits frictionally and / or positively and / or materially on the edge region. For example, the edge region extends in the axial direction.

[0021] The outer wall region preferably has an inner circumferential surface that abuts against an outer circumferential surface of the edge region, for example, in a frictional manner. In particular, the protective ring and / or the outer wall region is thereby firmly connected to the component housing. The outer circumferential surface of the edge region is preferably straight or extends straight, in particular in the axial direction. Advantageously, the inner circumferential surface of the outer wall region is straight or extends straight, in particular in the axial direction.

[0022] In the prior art, the outer circumferential surface of the edge region is, for example, concavely curved, so that the outer wall region of the protective ring would in particular not find any hold on this outer circumferential surface. According to a second advantageous variant, the component housing has a protective ring groove extending in the axial direction and surrounding the component housing opening, into which the outer wall region is engaged, in particular partially and / or with an axial end region facing away from the cover region. Preferably, the outer wall region and / or the protective ring is thereby firmly connected to the component housing. The protective ring groove can thus be used, for example, to fasten the protective ring. Preferably, the outer wall region sits firmly in the protective ring groove. Preferably, the outer wall region sits frictionally and / or positively and / or materially in the protective ring groove.

[0023] According to an advantageous development, the protective ring has an inner wall region extending in the axial direction, surrounding the axis of rotation, and spaced from the outer wall region, into which the cover region preferably merges at its inner circumference. In particular, the radial shaft seal is thus also protected radially from the inside by the protective ring.

[0024] Preferably, the inner wall region extends away from the cover region in a direction facing the component housing and / or the joint housing. Preferably, the inner wall region extends away from the cover region in the same direction as the outer wall region.

[0025] Preferably, the transition from the cover area to the inner wall area is rounded and / or curved. This avoids sharp edges that could, for example, damage the sealing bellows.

[0026] Preferably, the inner wall region, in particular with its axial end facing away from the cover region, is spaced from the joint housing. For example, the inner wall region, in particular with its axial end facing away from the cover region, extends up to or approximately up to the bellows groove and / or up to or approximately up to an annular wall of the joint housing that radially outwardly delimits the bellows groove. For example, the inner wall region is S-shaped, in particular in longitudinal section.

[0027] Advantageously, the outer wall region and the cover region define a protective ring interior, particularly annular, that is open toward the radial shaft seal. Preferably, the inner wall region also defines the protective ring interior.

[0028] According to an advantageous embodiment, radial openings are provided in the outer wall region, preferably toward the protective ring interior, which are arranged in particular around the joint, preferably at a distance from one another. Water, for example, which has entered the protective ring interior and / or a region between the protective ring and the radial shaft seal can flow outward through the openings. The openings are preferably evenly distributed around the joint and / or the rotational axis. The openings are preferably open toward an axial end of the outer wall region facing away from the cover region.

[0029] The protective ring is preferably made of metal, in particular aluminum or a ferrous material such as steel. For example, the protective ring is made of stainless steel. Preferably, the protective ring is made of stainless steel. Alternatively, the protective ring is made of plastic, for example.

[0030] According to an advantageous further development, the chassis component is provided with two sleeves, preferably extending in or approximately in the axial direction, which are spaced apart from one another transversely to the axial direction and are firmly connected to one another by the component housing, which in particular bridges the distance between the sleeves.

[0031] The chassis component is preferably a sliding tube bridge, in particular for a motorcycle.

[0032] The invention is described below using preferred embodiments with reference to the drawing. In the drawing: Fig. 1 a perspective view of a central region of a chassis component according to a first embodiment, Fig. 2 shows a part of a longitudinal section through the chassis component according to the first embodiment, Fig. 3 shows a longitudinal section through the chassis component according to the first embodiment, wherein a Fig. 1 and Fig. 2 visible protective ring was omitted, Fig. 4 a perspective view of a central region of a chassis component according to a second embodiment, Fig. 5 shows a part of a longitudinal section through the chassis component according to the second embodiment and Fig. 6 shows a longitudinal section through the chassis component according to the second embodiment, wherein a Fig. 4 and Fig. 5 visible protective ring was omitted.

[0033] From the Fig. 1 to 3 show different views and partial views of a chassis component 1 according to a first embodiment. The chassis component 1 comprises a component housing 2, which encloses a component housing interior 3 extending in an axial direction x and is provided with a component housing opening 4 provided at one axial end of the component housing interior. Furthermore, the component housing 2 is provided with a component housing base 5, opposite which the component housing opening 4 is spaced apart in the axial direction x.

[0034] The chassis component 1 further comprises a joint 6, which has a joint housing 7 inserted into the component housing interior 3 and an inner joint part 8 in the form of a ball stud movably mounted therein. In particular, the inner joint part 8 comprises a joint ball 9, by means of which the inner joint part 8 is movably mounted in the joint housing 7 with the interposition of a bearing shell 10.

[0035] A bearing 11 in the form of a rolling bearing is introduced into the component housing interior 3, surrounding the joint housing 7, by means of which the joint housing 7 is rotatably mounted in the component housing interior 3 about a rotation axis 12 running in the axial direction x relative to the component housing 2. Furthermore, a radial shaft seal 13 is introduced into the component housing interior 3, surrounding the joint housing 7 and arranged in the axial direction x above the bearing 11, which seals the joint housing 7 relative to the component housing 2 in the region of the component housing opening 4.

[0036] The chassis component 1 comprises a protective ring 14 which surrounds the joint 6, is arranged in the axial direction x above the radial shaft sealing ring 13 and covers the latter, and is fastened to the component housing 2. The protective ring 14, which is arranged outside the component housing interior 3, has an outer wall region 15 extending in the axial direction x and surrounding the axis of rotation 12, and a cover region 16 extending radially inward from this region transversely to the axial direction x and surrounding the axis of rotation 12. The outer wall region 15 extends away from the cover region 16 in a direction facing the component housing 2. Furthermore, the protective ring 14 has an inner wall region 17 which extends in the axial direction x, surrounds the axis of rotation 12, and is surrounded by the outer wall region 15 at a distance, into which the cover region 16 merges at its inner circumference.The inner wall region 17 extends in particular in the same direction away from the cover region 16 as the outer wall region 15. Radial openings 18 are provided in the outer wall region 15, which are arranged at a distance from one another around the joint 6 and are preferably open towards an axial end of the outer wall region 15 facing away from the cover region 16.

[0037] The component housing 2 has an edge region 19 surrounding the component housing opening 4, which edge region is surrounded by the outer wall region 15. An inner peripheral surface 26 of the outer wall region 15 frictionally engages an outer peripheral surface 20 of the edge region 19, which is straight in the axial direction x, so that the outer wall region 15 sits firmly on the edge region 19. The transition from the cover region 16 to the inner wall region 17 is curved, thus avoiding a sharp edge that could damage a sealing bellows 21 of the joint 6.

[0038] The sealing bellows 21 surrounds the inner joint part 8, is connected to the joint housing 7, and extends from the joint housing 7 to the inner joint part 8. Furthermore, the sealing bellows 21 engages with a sealing bellows end on the joint housing side into a bellows groove 22 formed in the joint housing 7 and surrounding the inner joint part 8, which is delimited radially outwardly by an annular wall 23 of the joint housing 7. The inner wall region 17 preferably extends, with its end facing away from the cover region 16, to or approximately to the bellows groove 22 or annular wall 23. For example, the inner wall region 17 is S-shaped.

[0039] The chassis component 1 comprises two sleeves 24 extending in or approximately in the axial direction x, which are spaced apart from one another transversely to the axial direction x and are firmly connected to one another by the component housing 2. In particular, the chassis component 1 forms a sliding tube bridge for a motorcycle.

[0040] From the Fig. 4 to 6 show different views and partial views of a chassis component 1 according to a second embodiment, wherein features identical or similar to the first embodiment are designated by the same reference numerals as in the first embodiment.

[0041] In contrast to the first embodiment, the component housing 2 according to the second embodiment has a protective ring groove 25 extending in the axial direction x and surrounding the component housing opening 4, into which the outer wall region 15 of the protective ring 14 is engaged with an end region facing away from the cover region 16 of the protective ring 14, so that the outer wall region 15 sits firmly in the protective ring groove 25, in particular by frictional engagement.

[0042] Furthermore, in contrast to the first embodiment, the outer peripheral surface 20 of the edge region 19 is concavely curved in the second embodiment, but this is only optional.

[0043] Apart from these differences, the second embodiment is identical to the first embodiment, so that for a further description of the second embodiment, reference is made to the description of the first embodiment. Reference symbol 1 chassis component 2 component housings 3 Component housing interior 4 Component housing opening 5 Component housing base 6 joint 7 Joint housing 8 inner joint part 9 joint ball 10 bearing shell 11 camps 12 axis of rotation 13 Radial shaft seal 14 Protective ring 15 Outer wall area of ​​the protective ring 16 Cover area of ​​the protective ring 17 Inner wall area of ​​the protective ring 18 Breakthrough in the exterior wall area 19 Marginal area 20 Outer peripheral surface of the edge area 21 Sealing bellows 22 Bellows nut 23 Ring wall 24 sleeve 25 protective ring groove 26 Inner peripheral surface of the outer wall area x axial direction

Claims

[1] Chassis component with - a component housing (2) which encloses a component housing interior (3) extending in an axial direction (x) and is provided with a component housing opening (4) provided at an axial end of the component housing interior (3), - a joint (6) which has a joint housing (7) inserted into the component housing interior (3) and an inner joint part (8) movably mounted therein, characterized by - a bearing (11) provided in the component housing interior (3), by means of which the joint housing (7) is mounted in the component housing interior (3) so as to be rotatable about an axis of rotation (12) extending in the axial direction (x) relative to the component housing (2), and - a radial shaft sealing ring (13) which is introduced into the component housing interior (3), surrounds the joint housing (7) and is arranged in the axial direction (x) above the bearing (11), which seals the joint housing (7) against the component housing (2) in the region of the component housing opening (4), and - a protective ring (14) surrounding the joint (6), arranged in the axial direction (x) above the radial shaft sealing ring (13) and covering the latter, which is fastened to the component housing (2). [2] Chassis component according to claim 1, characterized by that the protective ring (14) is arranged outside the component housing interior (3). [3] Chassis component according to claim 1 or 2, characterized bythat the protective ring (14) has an outer wall region (15) extending in the axial direction (x) and surrounding the axis of rotation (12), by means of which the protective ring (14) is fastened to the component housing (2), and a cover region (16) extending radially inward from the outer wall region (15) transversely to the axial direction (x) and surrounding the axis of rotation (12). [4] Chassis component according to claim 3, characterized by in that the component housing (2) has an edge region (19) surrounding the component housing opening (4), which edge region is surrounded by the outer wall region (15) which has an inner circumferential surface (26) lying against an outer circumferential surface (20) of the edge region (19) and is thus firmly connected to the component housing (2). [5] Chassis component according to claim 4, characterized by that the outer peripheral surface (20) of the edge region (19) runs straight in the axial direction (x). [6] Chassis component according to claim 3, characterized bythat the component housing (2) has a protective ring groove (25) extending in the axial direction (x) and surrounding the component housing opening (4), into which the outer wall region (15) is engaged and is thereby firmly connected to the component housing (2). [7] Chassis component according to one of claims 3 to 6, characterized by that the protective ring (14) has an inner wall region (17) extending in the axial direction (x), surrounding the axis of rotation (12) and surrounded at a distance from the outer wall region (15), into which the cover region (16) merges at its inner circumference. [8] Chassis component according to one of claims 3 to 7, characterized by that radial openings (18) are provided in the outer wall region (15), which are arranged at a distance from one another around the joint (6). [9] Chassis component according to one of the preceding claims, characterized by that the protective ring (14) is made of stainless steel. [10] Chassis component according to one of the preceding claims, characterized by that the joint (6) is a ball joint. [11] Chassis component according to one of the preceding claims, characterized by that the bearing (11) is a rolling bearing surrounding the joint housing (7). [12] Chassis component according to one of the preceding claims, characterized by two sleeves (24) which are spaced apart from one another transversely to the axial direction (x) and are firmly connected to one another by the component housing (2).

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