Bearing system for a bicycle comprising a bearing system

Abstract

Disclosed is a bearing system (34, 72, 100) for a bicycle (1) comprising a bicycle frame (2), wherein the bearing system (34, 72, 100) forms a rotary joint of a wheel suspension and has at least one inner ring (36, 84, 102) and at least one outer ring (38, 76, 108) comprising a bearing element (40, 80, 82) arranged therebetween. According to the invention, the inner ring (36, 84, 102) forms a pre-assembled assembly together with the outer ring (38, 76, 108) and the bearing element (40, 80, 82). Also disclosed is a bicycle (1) comprising such a bearing system (34, 72, 100).

Description

[0001] Description

[0002] Storage system for a bicycle and bicycle with storage system end of invention t ; inung according to the preamble . • s 1 as well as a Fa ■ it of a dera ; »n La ■' ..Ordnung according to the preamble of claim 19.

[0003] Front wheel and rear suspensions for bicycles and e-bikes are known from the prior art, enabling a wheel to adapt to the ground conditions. These suspensions use wheels, dampers, and

[0004] Verbindu: lern, which together form a joint mechanism, enabling the movement and motion of a wheel.

[0005] Numerous options are available for such high-level suspensions.

[0006] •men known, which are in kinematics u. The best-known designs are I ' iker-

[0007] Rear triangle (Sj lower triangle), Twin-Link-Hi »au and

[0008] Four-bar rear suspension (H nk or fauxbar rear suspension).

[0009] In the single-pivot rear suspension, a ring connects the rear axle, the rear axle and the damper.

[0010] According to the Twin-Link rear suspension, the H: bau is attached to the Hau .ment t by means of zips. . The Däi can be connected directly to the swingarm or via rocker arms.

[0011] At the far •'• cer- or k-

[0012] The rear suspension is designed with a pivot point at the axle end of the chainstay. In a Horst-Link rear suspension, the rear axle is mounted to the chainstay. In a Fauxbar four-bar linkage, the rear axle is attached to the chainstay and the pivot point to the seatstay.

[0013] In addition to spring forks, multi-link systems are also known for front wheel suspension, whose linkages are connected by means of swivel joints.

[0014] A disadvantage of well-known wheel suspensions is their bearing systems, specifically pivot bearings, which utilize a multitude of custom components and are therefore complex to assemble. These bearing systems are usually custom designs by the respective manufacturer. A significant drawback is that the large number of individual bearing components, such as special washers and bolts from the frame manufacturer, leads to an accumulation of tolerances. This makes quality control complex. Customer spare parts for all bicycle models must be kept in stock for several years. Due to the non-standardized components, specific spare parts must be used for each model, making inventory management costly. The only standard components are usually the ball bearings.

[0015] The invention is therefore based on the objective of providing a novel bearing system for a bicycle that can be manufactured advantageously, as well as a bicycle with an improved bearing system.

[0016] This problem is solved by a bearing system with the feature combination of claim 1 and by means of a bicycle according to claim 19.

[0017] A bearing system according to the invention for a bicycle with a bicycle frame forms a pivot joint of a wheel suspension and has at least one inner ring and an outer ring with a bearing element arranged between them. According to the invention, the inner ring together with the outer ring and the bearing element forms a pre-assembled assembly. It is advantageous that the pre-assembled assembly, including seals, bushings, etc., is already separated from the frame. It has also proven advantageous if the inner ring together with the outer ring, the bearing element, and at least one bearing element forms a pre-assembled assembly.

[0018] According to a preferred embodiment of the

[0019] The invention comprises a ring with at least one external thread. The external thread serves for connection to a bicycle component, particularly preferably for screwing into a pivot joint of the bicycle. Due to the external thread, the mounted component can be attached to the bicycle frame and / or a

[0020] Frame component, such as the rear section, can be screwed in. The production of a bearing fit and the assembly is not straightforward. Another advantage is the simplified manufacturing process due to the...

[0021] external thread of the: an internal thread is to be provided in the so that a high-level i of a

[0022] The internal through-hole for the press fit of the La is omitted. Furthermore, the ng of the I ms can be determined using standard sc.

[0023] It is particularly advantageous if the . is used as standard.

[0024] U ihrt is . In an alternative version, the pre-assembled bearing system is integrated into the bearing housing: ar .

[0025] According to another embodiment, the pre-assembled bearing system can be glued into the bearing housing.

[0026] The bearing system is designed as an integrated standard rotary bearing unit with spacers, possibly additional seals and mounting interfaces.

[0027] The main feature of the bearing system is that the bearing manufacturer connects the inner parts with the rolling or sliding bearing and can therefore guarantee tighter tolerances at the contact zone, such as the width inside a fork, so that only a pre-made element needs to be installed during frame assembly ( ^nen principle ).

[0028] In summary, Erfindere smäß enables a simplification of the framework, procurement, assembly, warehousing and customer service.

[0029] A pivot joint is particularly preferred, at least as a joint in a bearing arrangement of a fully suspended bicycle. The bicycle can be designed without motor assistance or as an e-bike.

[0030] According to a preferred embodiment of the bearing system, the wheel suspension is a rear suspension. The rear suspension can preferably be designed as a single-pivot rear suspension, a twin-link rear suspension, or, more preferably, as a four-bar linkage, such as a Horst-link or fauxbar rear suspension.

[0031] The bearing system is preferably part of the main bearing, the Horst-Link bearing, the rear suspension rocker arm bearing and / or the rocker arm bearing.

[0032] Alternatively or additionally, the bearing system of the wheel suspension is a pre-tensioning system, preferably a Mehj jr-front suspension. Advantages of the

[0033] L ; ns correspond to 1 ei which

[0034] Rear suspension.

[0035] . and mo: . i has proven advantageous if the le ' as a rmiges cartridge . is .

[0036] In a preferred embodiment of the bearing system, the inner ring has at least one internal thread. The internal thread allows for the mounting of bicycle components preferably using ground screws.

[0037] [According to invention, it is advantageous] r if that

[0038] The outer ring of a rolling bearing is the bearing surface. The rolling bearing is preferably designed as a radial bearing in ball or roller bearing design. The components are in particular the ball and / or

[0039] Ro 11 en el entente des Wällagers . In a preferred version of the invention, the external thread is an M26x1 thread. Alternatively or additionally, a

[0040] A n sein . According to a further embodiment, it is advantageous if the external thread is formed on the outer ring of a sliding bearing .

[0041] Preferably, the outer ring is provided with a mounting interface next to the external thread, which forms a surface for a tool.

[0042] In an embodiment according to the invention, the tool section of the outer ring is designed as a shaft profile driver for receiving a corresponding tool.

[0043] According to an advantageous embodiment of the L is, the inner ring is formed in at least two parts.

[0044] In a design where the inner part is injection molded into the inner ring, the bearing system can be formed in one piece.

[0045] The inner ring preferably has an outer part and an inner part. The outer part and the inner part can be connected along a common longitudinal axis. Preferably, the inner part is pressed into the outer part. The assembly of the inner ring thus designed is preferably carried out at the bearing manufacturer. The bearing system manufacturer, for example, the bicycle manufacturer or a bicycle repair shop, then assembles the already pre-assembled bearing system.

[0046] In a preferred embodiment of the bearing system, the inner part of the inner ring has an internal thread. The internal thread is preferably continuous. According to a preferred design specification, an M6 thread is used.

[0047] The internal thread allows at least one screw to be inserted. In a preferred design, a screw can be inserted into each side of the internal thread.

[0048] Preferably, at least one bearing, be a rolling or sliding bearing, is arranged on the inner ring. The W is preferably represented as Ku.

[0049] A two-row L-shaped bearing can preferably be used here. Alternatively, two single-row ball bearings could be arranged adjacent to each other.

[0050] According to a particularly preferred embodiment of the is, the outer and inner parts of the inner ring each have a ring collar for the i ung or .

[0051] Covering the storage area. The ring collar of the inner part is preferably used for the outer part.

[0052] This defines the position when pressing together the inner and outer parts. The inner collar of the

[0053] I ■ is preferably slightly shortened. It is therefore the case that sealing elements facing the bearing are present in the area of ​​the ring binder. The outer and inner parts can be multi-part or single-level and fitted with sealing elements. This can be manufactured as an injection-molded part.

[0054] This is particularly advantageous when used on the nk, preferably screwed into a male fork part. The ring collar of the outer ring forms a defined contact position on the outer surface of the male part, limiting the insertion depth.

[0055] Fork part made of .

[0056] In one embodiment according to the invention, the male fork section with a screwed-in bearing system can be inserted into the female fork section and fixed by means of at least one fastening screw. Preferably, a fastening screw is screwed into the bearing system on both sides. The annular collars of the inner ring form a defined contact surface for the fork legs.

[0057] Alternatively, the inner ring is designed with a spacer element to accommodate a fastening screw.

[0058] In a bearing system according to the invention for a rocker pivot point, the bearing is preferably assigned to the rocker arm or the rocker, since this reduces the number of parts and simultaneously increases the flexibility with regard to support width (available installation space).

[0059] In a design of the bearing system with a plain bearing, the external thread is preferably formed on an outer ring of a plain bearing. In this variant, the bearing element is preferably the plain bearing's bushings. The plain bearing preferably has an inner ring consisting of at least two parts, an outer ring, and two bushings, each of which has an annular flange on its outer side and is arranged between the inner and outer rings. One inner ring part is preferably provided with an annular flange that forms a contact surface for the flange of a first bushing. The second inner ring part is preferably approximately disc-shaped, can be slid onto the first inner ring part, and forms a contact surface for the flange area of ​​the second bushing. The bushings can be identical and are reversed relative to each other.The outer ring is preferably provided at both end sections with a stepped reduction for flush reception of the ring flanges of the rings. A die is arranged on the ring flange of the first inner ring section and on the disc-shaped second inner ring section, i.e., on the end sections. The width of the sealing ring preferably corresponds approximately to the width of the ring flange.

[0060] A bicycle according to the invention has a bicycle frame and at least one bearing system, wherein the bearing system is a wheel suspension and at least one bearing system.

[0061] The inner ring and the outer ring have an outer ring with a bearing element arranged z'> en i. According to the invention, the inner ring together with the outer ring and the bearing element forms a pre-assembled assembly.

[0062] Our preferred expressions are the subject of the sayings.

[0063] Preferred embodiments of the present invention are explained in more detail below with reference to the accompanying drawings. The drawings show, in detail:

[0064] Figure 1 shows a side view of a bicycle according to the invention in the area of ​​the bicycle frame;

[0065] Figure 2 shows a sectional view of the bicycle rear triangle with bearing system in the area of ​​the Horst-Link bearing arrangement;

[0066] Figure 3 is a sectional view of the bearing system; Figure 4 is a perspective view of the bearing system without the protective ring;

[0067] Figure 5 shows a side view of the storage system without

[0068] Protective ring;

[0069] Figure 6 is a perspective view of the

[0070] Bearing system with protective ring;

[0071] Figure 7 shows a side view of the bearing system with protective ring;

[0072] Figure 8 shows a sectional view of the bicycle rear triangle with bearing system in the area of ​​the Horst-Link bearing arrangement;

[0073] Figure 9 shows a sectional view of the bearing system made of

[0074] Figure 8 in the area of ​​the Horst-Link bearing arrangement and

[0075] Figure 10 shows a sectional view of a variant of a bearing system of a main bearing.

[0076] Figure 1 shows a side view of a bicycle 1 designed according to the invention as an e-bike or electric bicycle with bottom bracket drive, based on a bicycle frame 2, with top tube 4, down tube 6, seat tube 8 and head tube 10, as well as a four-bar linkage or Horst-link rear triangle 12. Further components of the bicycle 1 are not shown for the sake of simplicity. The bicycle 1 is designed as a full-suspension bicycle 1 with a schematically indicated rear shock absorber 14. The rear triangle 12 is connected to the bicycle frame 2 via a main bearing arrangement 16 and is provided with a Horst-link bearing arrangement 18. The rear shock absorber 14 is connected to the rear triangle 12 via a rocker arm 20.

[0077] The rocker arm 20 is connected to the seat tube 8 by means of a rocker arm bearing assembly 22 and to the rear triangle 12 via a rear triangle bearing assembly 24. The Horst-Link bearing assembly 18 is provided between the chainstays 26 and the axle ends 28 of the chainstays 26. The rear axle 30 is mounted to the seat stays 32.

[0078] According to Figure 2, which shows a sectional view of the rear structure 12 in the area of ​​the Horst-Link bearing arrangement 18, a bearing system 34 according to the invention uses an inner ring 36 and an outer ring 38 with bearing elements 40 arranged between them. The inner ring 36 together with the outer ring 38 and the bearing element 40 forms a pre-assembled assembly.

[0079] As can be seen in particular from Figure 3, which shows a sectional view of the bearing system 34, and from Figures 4 to 7, which show perspective and sectional views of the bearing system 34, the outer ring 38 has an external thread 42. The external thread 42 is used for screwing into the axle ends 28 (male fork part, see Figure 2). Due to its design as a cylindrical cartridge bearing, the bearing system 34 can be screwed in as a fully assembled unit. Pressing is not required. The bearing system 34 is designed as a standardized universal bearing system.

[0080] The inner ring 36 is provided with a continuous internal thread 44. The external thread 42 is an M26x1 thread on an outer ring 38 of a rolling bearing designed as a double-row ball bearing 46. The outer ring, next to the external thread 42, is provided with an M >d ' interface 48, which forms a gripping surface for a tool. The assembly interface 48 (assembly drive) is designed as a shaft profile driver for receiving a suitable screwdriving tool. A protective ring 49 is slid onto the assembly interface 48, as shown in Figures 3, 6, and 7, to protect it from contamination. The protective ring 49 has a chamfer and an external inclined surface.

[0081] The inner ring 36 of the bearing system 34 is designed in two parts. The inner ring 36 has an outer part 50 and an inner part 52. The outer part 50 and the inner part 52 can be connected along a common longitudinal axis 54. The inner part 52 is inserted into the outer part 50. Assembly of the bearing system 34 as described above takes place at the bearing manufacturer. The inner part 52 of the inner ring 36 is provided with the internal thread 44. The internal thread 44 is designed as a machined thread. As shown in Figure 2, a fastening screw 56 is screwed into each side of the inner ring 36, passing through the legs 58, 60 of the K ' t nstribe 26.

[0082] The outer part 50 and the inner part 52 of the inner ring 36 each have an annular flange 62, 64 for lateral support and / or covering of the bearing area. The annular flange 62 of the inner part 52 serves as a lateral contact surface for the outer part 50. This ensures precise positioning when pressing together the inner and outer parts 50, 52. An inner flange 66 of the inner part 52 is slightly axially shortened compared to the outer part 50. Sealing elements 70 facing the ball bearing 46 are provided in the area of ​​the annular flange 62 and the annular flange 64.

[0083] According to Figure 2, the male Ga 28 with screwed-in bearing system 34 into the strut 26

[0084] (female fork,] 1 ) insertable and pivotably fixed by means of the screws 56. The ring flanges 62, 64 of the inner ring 36 form a fork for the fork legs.

[0085] According to the direction of a 1 ms

[0086] 72 with based on a Sch j in

[0087] The area of ​​the Horst-Link bearing arrangement is shown, as well as Figure 9, which is a section of the bearing element 72. The external thread 74 is on an outer ring 7 (5 of an it). The bearing element is located at the sliding bushing 82 c.

[0088] D . . 78 is designed with a 2-inch inner ring 84, the outer ring 76 and the nuts 80, 82, each having a ring collar 86, 88 on its end and arranged between the inner ring 84 and the outer ring 76. An inner ring with an internal thread 91 and a

[0089] Ringbund 92 provided, which is for the

[0090] Ringbund 88 of the ox 82 trains. The second

[0091] Inner ring part 94 is approximately enför . <t , auf den ersten Innenringteil 90 en< oben und bildet eine Arc die für den Ringbu der zweiten hse 80 aus . . i 80 , 82 sind identisch rt und werden spiegelverkehrt zueinander derart m mittig aneinander anliegen und eine gemeinsame :he ausbj Iden . Der Außenring 76 ist an beiden Endabschnitten mit einer ligen

[0092] The width is reduced to allow flush mounting of the ring flanges 86, 88 of the sliding bushings 80, 82. A sealing ring 96, 98 is arranged circumferentially on the ring flange 86 of the inner ring part 94, i.e., the free end sections. The width of the sealing rings 96, 98 corresponds approximately to the width of the ring flange 92 and the width of the second inner ring part 94, respectively. The outer ring 76 is provided with a threaded insert 95 in addition to the external thread 74.

[0093] According to Figure 10, which shows a variant of a main bearing system 100, the inner ring 102 is without threads but has a cylindrical cup-shaped mounting element 104 for the central reception of a fastening screw 106. The outer ring 108 is provided with an external thread 110 for screwing it to an internal thread of the chainstay 26. The rocker arm bearing can be designed in the same way as the main bearing. The second bearing side is designed accordingly.

[0094] A bearing system 34, 72, 100 for a bicycle 1 with a bicycle frame 2 is disclosed, wherein the bearing system 34, 72, 100 forms a pivot joint of a wheel suspension and has at least one inner ring 36, 84, and at least one outer ring 38, 76, 108 with a bearing element 40, 80, 82 arranged between them. According to the invention, the inner ring 36, 84, 102 together with the outer ring 38, 76, 108 and the bearing element 40, 80, 82 form a pre-assembled assembly. A bicycle 1 with such a bearing system 34, 72 is further disclosed. Reference numerals

[0095] 1 bicycle

[0096] 2 bicycle frames

[0097] 4 Top tube

[0098] 6 down tube

[0099] 8 seat tube

[0100] 10 Head tube

[0101] 12 Rear triangle

[0102] 14 Rear installation damper

[0103] 16 Main bearing arrangement

[0104] 18 Horst-Link storage arrangement

[0105] 20 deflection levers

[0106] 22 Deflection lever bearing arrangement

[0107] 24 Rear suspension bearing arrangement

[0108] 26 chainstay

[0109] 28 axle ends

[0110] 30 Rear axle

[0111] 32 Seat strut

[0112] 34 storage system

[0113] 36 inner ring

[0114] 38 Outer ring

[0115] 40 bearing element

[0116] 42 external threads

[0117] 44 internal threads

[0118] 46 ball bearings

[0119] 48 Mounting interface

[0120] 49 Protective ring

[0121] 50 Outdoor part

[0122] 52 Inner part

[0123] 54 Longitudinal axis

[0124] 56 Mounting screw

[0125] 58 thighs 60 thighs

[0126] 62 ring bundle

[0127] 64 ring bundle

[0128] 66 inner waistband.

[0129] 68 sealing element

[0130] 70 sealing element

[0131] 72 storage system

[0132] 74 external threads

[0133] 76 Outer ring

[0134] 78 plain bearings

[0135] 80 sliding bushing

[0136] 82 Sliding bushing

[0137] 84 inner ring

[0138] 86 ring bundle

[0139] 88 ring bundle

[0140] 90 Inner ring part

[0141] 91 internal thread

[0142] 92 ring bundle

[0143] 94 Inner ring part

[0144] 95 Mounting interface

[0145] 96 Sealing ring

[0146] 98 Sealing ring

[0147] 100 storage system

[0148] 102 inner ring

[0149] 104 spacer element

[0150] 106 B caube

[0151] 108 Outer ring

[0152] 110 external threads

Claims

Claims 1. Bearing system (34, 72, 100) for a bicycle (1) with a bicycle frame (2) , wherein the bearing system (34, 72, 100) forms a pivot joint of a wheel suspension and has at least one inner ring (36, 84, 102) and at least one outer ring (38, 76, 108) with a bearing element (40, 80, 82) arranged between them, characterized in that the inner ring (36, 84, 102) together with the outer ring (38, 76, 108) and the bearing element (40, 80, 82) forms a pre-assembled assembly.

2. Bearing system according to claim 1, wherein the inner ring (36, 84, 102) together with the outer ring (38, 76, 108) , the bearing element (40, 80, 82) and at least one sealing element (68, 70, 96, 98) forms the pre-assembled assembly.

3. Bearing system according to claim 1 or 2, wherein the outer ring (38, 76, 108) has at least one external thread (42, 74, 110).

4. Bearing system according to one of the preceding claims, wherein the wheel suspension is a rear wheel suspension.

5. Bearing system according to one of claims 1 to 3, wherein the wheel suspension is a front wheel suspension.

6. Bearing system according to one of the preceding claims, wherein the bearing system (34, 72, 100) is designed as a cartridge bearing.

7. Bearing system according to one of the preceding claims, wherein the inner ring (36, 84, 102) has at least one internal thread (44, 91).

8. Bearing system according to one of claims 3 to 7, wherein the external thread (42, 110) is formed on an outer ring (38, 108) of a rolling bearing (46).

9. Bearing system according to any one of the preceding claims 3 to 7, wherein the external thread (74) is formed on an outer ring (76) of a sliding bearing (78).

10. Bearing system according to one of claims 3 to 9, wherein the outer ring (38, 76) has a mounting interface (48, 95) in addition to the external thread (42, 74).

11. Bearing system according to claim 10, wherein the mounting interface (48) of the outer ring (38) is designed as a shaft profile driver.

12. Bearing system according to one of the preceding claims, wherein the inner ring (36, 84) is formed in at least two parts.

13. Bearing system according to one of the preceding claims, wherein the inner ring (36, 84) has an outer part (50, 94) and an inner part (52, 90).

14. Bearing system according to claim 13, wherein the inner part (52) of the inner ring (36, 84) has the internal thread (44, 91).

15. Bearing system according to one of the preceding claims, wherein bearings (46, 78) , preferably a rolling or Plain bearings, arranged on the inner ring 16. La em according to one of claims 13 to 15, wherein outer part (50, 94) and inner part (52, of the inner ring (36, 84) each have a ring bundle (64, 92) on .

17. . . according to claim 16, wherein in the area Ringbunds 64, 92) the ; applied sealing elements (68, 70, 96, 98) are provided.

18. : m according to one of the preceding claims, wherein the inner ring is equipped with a spacer element (104) for Recording of a .robbery (106) is carried out.

19. Bicycle with a bicycle frame (2) and at least one bearing system (72, 100), wherein the bearing system (34, 72, 100) a pivot joint of a wheel suspension and at least one inner ring (36, 84, and at least one Outer ring (38, 76, 108) with a . ient (40, 80, 82) arranged between them, characterized in that the inner ring (84, 102) together with the outer ring (38, 76, 108) and the bearing element (40, 80, 82) forms a premc ppe.

20. Bicycle according to claim 19, wherein the outer ring 76, 108) has at least external threads (42, 74, 110).

21. Bearing system according to claim 19 or 20, wherein the wheel suspension is a rear wheel suspension.

22. Bicycle according to one of claims 19 to 21, wherein the bearing system (34, 72) can be screwed into a male fork part of a bearing point.

23. Bicycle according to claim 22, wherein the male fork part with screwed-in bearing system (34, 72) can be inserted into the female fork part and fixed by means of at least one fastening screw.

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