TWI701180B - A washer and a steering mechanism having the same - Google Patents

Abstract

A washer is configured to a headset assembly and a fork stem. An inner annular surface of the washer and an outer circumferential surface of the fork stem are disposed face-to-face. The headset assembly includes a cover portion and a bearing assembly, the washer is configured between the cover portion and the bearing assembly. The washer is adapted for freely rotatably sleeving to the fork stem. A hardness of the washer is less than a hardness of the fork stem. A steering mechanism has the washer mentioned above.

Description

Spacer and bicycle steering mechanism including the spacer

The invention relates to a gasket and a bicycle steering mechanism sheet including the gasket.

In general, the smoothness of the steering of the bicycle handle depends on the structure of the headset. The prior art headset is set in a front fork steering tube, and the headset is set between a head tube and a handle riser. The headset includes an upper fixing component, a lower fixing component and a fastener . The upper fixing component has a first abutting portion capable of abutting against the handle riser along an axial direction; the lower fixing component has a second abutting portion capable of abutting against the head tube along the axial direction; the The second abutting portion may include a spacer and a dust-proof member; the clamping member can adjustably press against at least one of the upper and lower fixing components. However, during operation, the spacer of the prior art will continuously wear the front fork steering tube, and even cause the front fork steering tube to break, resulting in a short service life.

Therefore, it is necessary to provide a novel and progressive gasket and a bicycle steering mechanism including the gasket to solve the above-mentioned problems.

The main purpose of the present invention is to provide a gasket and a bicycle steering mechanism including the gasket, which can prevent damage to the front fork stem, thereby prolonging the service life.

In order to achieve the above-mentioned object, the present invention provides a gasket which is provided on a front headset and sleeved on a front fork standpipe, an inner ring surface of the gasket and an outer peripheral surface of the front fork standpipe face each other The headset headset includes a cover and a bearing assembly. The spacer is provided between the cover and the bearing assembly. The spacer can rotate freely relative to the front fork standpipe. The hardness is less than that of the front fork standpipe; wherein the front fork standpipe extends in an axial direction, the cover, the bearing assembly and the gasket are arranged in the axial direction, and the gasket is sandwiched between the cover and Between the bearing components.

In order to achieve the above objective, the present invention further provides a bicycle steering mechanism, the bicycle steering mechanism includes the above-mentioned gasket, the bicycle steering mechanism further includes a front headset, which is sleeved on a front fork standpipe and is arranged at Between a front tube and a handle riser, the front headset includes a cover for sleeved on the front fork standpipe and a bearing assembly for sleeved on the front fork standpipe. The cover can be used with The handle riser abuts against each other along the axial direction, the gasket is provided between the cover and the bearing assembly, the gasket is provided between the cover and the support, and one end surface of the cover is connected to The face-to-face end faces of the head tube do not touch each other.

In order to achieve the above objective, the present invention further provides a bicycle steering mechanism. The bicycle steering mechanism includes the spacer as described above. The bicycle steering mechanism further includes a front fork standpipe for passing through a head tube of the headset. And the gasket, the Shore Hardness of the front fork standpipe is greater than D 60.00.

1: Gasket

11: inner ring wall

12: Outer ring wall

2: Headset headset

21: Lid

22: Bearing components

221: Bearing

222: Support

23: Extension

24: Arrival

3: Fork standpipe

4: Head tube

41: Housing Department

42: side block

43: ring groove

44: Room

5: handle standpipe

D1: Spacing

L1: axial

Figure 1 is an exploded perspective view of a preferred embodiment of the present invention.

Figure 2 is a perspective view of a preferred embodiment of the present invention.

Figure 3 is a partial cross-sectional view of a preferred embodiment of the present invention.

Figure 4 is a partial enlarged view of Figure 3.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to Figures 1 to 4, which show a preferred embodiment of the present invention, the gasket 1 of the present invention, which is provided in a headset 2 and sleeved in a front fork standpipe 3, the gasket 1 An inner ring surface and an outer peripheral surface of the front fork standpipe 3 are arranged to face each other. The headset 2 includes a cover 21 and a bearing assembly 22. The gasket 1 is provided on the cover 21 and the training Between the forest components 22, the washer 1 can freely rotate relative to the front fork riser 3, and the hardness of the washer 1 is less than that of the front fork riser 3; wherein, the front fork riser 3 extends in an axial direction L1 , The cover 21, the bearing assembly 22, and the spacer 1 are arranged toward the axial direction L1, and the spacer 1 is sandwiched between the cover 21 and the bearing assembly 22; thereby, the spacer is prevented The piece 1 damages the front fork standpipe 3 and prolongs the service life.

In this embodiment, the gasket 1 is a plastic gasket; the gasket 1 at least includes polyethylene terephthalate (PET) or polycarbonate (PC) to achieve lighter weight and lower weight Cost, and can prevent damage to the front fork standpipe 3; in detail, the gasket 1 includes polyethylene terephthalate (PET), which has sufficient hardness and good chemical stability.

The gasket 1 is a transparent gasket, which can improve the convenience of use.

The Shore Hardness of the gasket 1 ranges from D 60.00 to D 100.00. Preferably, the Shore Hardness of the gasket 1 is D 87.00, which provides support with proper hardness without damaging the front fork standpipe 3, and has good durability.

The thickness of the gasket 1 ranges from 0.10 mm to 0.60 mm, and the pad height is provided to facilitate fine adjustment of the height.

The gasket 1 is an elastically deformable ring piece, which is beneficial to deform and restore the original state. The gasket 1 includes an inner ring wall 11 and an outer ring wall 12, and the distance between the inner ring wall 11 and the outer ring wall 12 is less than 6.50mm, which can be installed and positioned stably; the inner diameter size range of the gasket 1 is 28.50mm to 29.50mm, so that the washer 1 can rotate relative to the front fork standpipe 3 without damaging the front fork standpipe 3; in this embodiment, the washer 1 can be contacted with the front fork standpipe 3 . The specific gravity of the gasket 1 is less than 2.00 g/cm ³ to achieve lightweight.

The present invention also provides a bicycle steering mechanism, which includes the spacer 1 as described above, and the bicycle steering mechanism further includes the front fork standpipe 3 and the front headset 2.

The front fork riser 3 is used to pass through a head tube 4 of the front headset 2 and the gasket 1, and the Shore Hardness of the front fork riser 3 is greater than D 60.00. The front headset 2 is for sleeved on the front fork riser 3 and between the front pipe 4 and a handle riser 5. The front headset 2 includes the cover for sleeved on the front fork riser 3 21 and the bearing assembly 22 for sleeved on the front fork riser 3, the cover 21 is capable of abutting against the handle riser 5 along the axial direction L1, and one end surface of the cover 21 is connected to the front The end faces of the tube 4 facing each other do not touch each other.

Specifically, the head tube 4 includes a supporting portion 41. One end of the supporting portion 41 is provided with a vertically extending side block 42. The bearing assembly 22 is provided on the supporting portion 41. The distance D1 between the end (top edge) and the end (bottom edge) of the cover 21 facing each other is equal to the thickness of the gasket, so that the end of the side stop 42 and the end of the cover 21 are not mutually exclusive. In contact, the gap formed between the end of the side block 42 and the end of the cover 21 facing each other can be adjusted in size through the gasket 1. In this embodiment, the bearing portion 41 is provided with an annular groove 43, so that the bearing assembly 22 can be directly arranged in the annular groove 43, and the side stop section 42 is supported on a radial direction of the bearing assembly 22 One side.

Preferably, the bearing assembly 22 includes a bearing 221 and a support 222 arranged on the bearing 221. A chamber 44 is formed between the cover 21 and the bearing 221, and the cover 21 is provided with a shaft along the axis. An extension section 23 extending toward L1. The extension section 23 is provided with an abutting surface 24 that abuts against the gasket 1. The gasket 1 is sandwiched between the abutting surface 24 and the support 222, and the gasket 1 faces transversely The abutting surface 24 protrudes in the direction of the axial direction L1 and extends into the chamber 44. The pressure of the abutting surface 24 against the gasket 1 is large, so that the gasket 1 is partially deformed, so that the gasket 1 can be maintained. The distance from the front fork standpipe 3 is to prevent the shim 1 from radial displacement relative to the front fork standpipe 3.

In summary, the gasket of the present invention and the bicycle steering mechanism including the gasket can prevent the gasket from damaging the front fork when the bicycle steering mechanism is operated by the gasket having a hardness less than that of the front fork standpipe Standpipe and extend the service life.

1: Gasket

21: Lid

22: Bearing components

221: Bearing

222: Support

3: Fork standpipe

4: Head tube

41: Housing Department

43: ring groove

Claims (10)

A gasket is provided on a front headset and sleeved on a front fork standpipe. An inner ring surface of the gasket and an outer peripheral surface of the front fork standpipe are arranged to face each other. The front headset includes a cover Part and a bearing assembly, the spacer is provided between the cover part and the bearing assembly, the spacer can freely rotate relative to the front fork riser, the hardness of the spacer is less than the hardness of the front fork riser Wherein, the front fork standpipe extends toward an axial direction, the cover, the bearing assembly and the gasket are arranged toward the axial direction, and the spacer is sandwiched between the cover and the bearing assembly. The gasket according to claim 1, wherein the gasket is a plastic gasket. The gasket according to claim 2, wherein the gasket includes at least polyethylene terephthalate (PET) or polycarbonate (PC). The gasket according to claim 1, wherein the Shore Hardness of the gasket ranges from D 60.00 to D 100.00. The gasket according to claim 1, wherein the thickness of the gasket ranges from 0.10 mm to 0.60 mm. The gasket according to claim 3, wherein the thickness of the gasket is in the range of 0.10mm to 0.60mm; the gasket is a transparent gasket; the Shore Hardness of the gasket is D 87.00; the gasket The sheet is an elastically deformable ring sheet. The gasket includes an inner ring wall and an outer ring wall. The distance between the inner ring wall and the outer ring wall is less than 6.50mm; the inner diameter of the gasket ranges from 28.50mm To 29.50mm; the specific gravity of the gasket is less than 2.00g/cm ³ . A bicycle steering mechanism, comprising the spacer according to any one of claims 1 to 6, and the bicycle steering mechanism further comprising: A headset for sleeves on a front fork standpipe and between a front pipe and a handle riser. The headset includes a cover for sleeves on the fork standpipe and a sleeve for sleeves In the bearing assembly of the front fork standpipe, the cover can abut against the handle standpipe along the axial direction, and one end surface of the cover and the facing end surface of the head pipe do not contact each other. The bicycle steering mechanism according to claim 7, wherein the head tube includes a supporting portion, one end of the supporting portion is provided with a vertically extending side block section, the bearing assembly is provided on the supporting portion, and the side block section The distance between the end of the cover and the end of the cover facing each other is equal to the thickness of the gasket. The bicycle steering mechanism according to claim 7, wherein the bearing assembly includes a bearing and a support provided on the bearing, a chamber is formed between the cover and the bearing, and the cover is provided with a shaft along the axis An extension section extending toward the direction, the extension section is provided with an abutting surface against the gasket, the gasket is sandwiched between the abutting surface and the support, and the gasket protrudes in a direction transverse to the axial direction Reach the surface and extend into the chamber. A bicycle steering mechanism, comprising the gasket according to any one of claims 1 to 6, the bicycle steering mechanism further comprising: a front fork vertical tube for passing through a head tube of the front headset and the pad The Shore Hardness of the front fork standpipe is greater than D 60.00.

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