TWI823710B - Bearing component of bicycle head pipe set and bicycle head pipe set with the same - Google Patents

Abstract

The present invention relates a bearing for bicycle head pipe set having an outer ring, a bearing, and an inner ring. The bearing is rotatably arranged between the outer ring and inner ring. A plurality of limit protrusions, mounted on the inner periphery of the outer ring, are separated at a specific angle. And a plurality of positioning protrusion, mounted on the inner ring, can abut against the limit protrusion on the outer ring. Thus, a bearing that can limit the rotation angle of a handle vertical pipe relative to a head pipe is formed.

Description

Bearing components of bicycle head tube sets and bicycle head tube sets having such bearing components

The present invention relates to a bearing, in particular to a bearing that can limit the rotation angle of a bicycle standpipe relative to a head tube.

The head tube of an existing bicycle is used for a handlebar riser to rotatably pass through it. A handle is provided at the top of the handlebar riser, and the bottom end is connected to the front fork tube. Thus, when the cyclist turns the handle, the handlebar riser and the front fork tube can be moved. The fork tube rotates relative to the head tube to turn the bicycle in order to control the direction of travel of the bicycle. In order to make the relative rotation between the handle stand tube and the head tube smooth, a set of handlebars on the handle stand tube will be provided at both ends of the head tube. Bearings, but most of the existing bearings are ball bearings. Although the existing ball bearings can allow the handlebar riser to rotate smoothly relative to the head tube, they do not have the function of limiting the rotation angle of the handlebar riser relative to the headtube, especially when used as bicycle handlebars. When the rotation angle is too large, it is easy to cause unstable driving or even accidents such as crashing. Therefore, there is a need for further improvement of the existing head tube assembly.

Therefore, in order to improve the deficiencies in the structure and use of the existing bicycle head tube set, the inventor has conducted continuous research and experiments and developed an invention that can improve the existing deficiencies.

The main purpose of the present invention is to provide a bearing for a bicycle head tube set, which can limit the rotatable angle of the handlebar vertical tube relative to the head tube, so as to avoid accidents caused by excessive steering of the bicycle faucet, and thereby improve bicycle riding. For the purpose of safety.

In order to achieve the above object, the present invention mainly provides a bearing component of a bicycle head tube assembly, which includes an outer ring, a bearing and a positioning ring. The bearing is arranged between the outer ring and the positioning ring. A plurality of limiting protrusions spaced at specific angles are protruding from the inner periphery of the outer ring, and at least one positioning protrusion that can abut against the limiting protrusions on the outer ring is protruded from the positioning ring.

The bearing assembly of the bicycle head tube assembly, wherein the bearing includes an inner ring and an outer ring that can rotate relatively, and the inner ring and the outer ring of the bearing are respectively interlocked with the positioning ring and the outer ring. .

In the bearing assembly of the bicycle head tube assembly, a plurality of buckle grooves are concavely formed on the inner circumferential surface of the bearing inner ring, and a plurality of buckle pieces are provided on the positioning ring to respectively lock with the buckle grooves. ; The outer peripheral surface of the bearing outer ring is concavely formed with a plurality of outer ring buckle grooves, and the outer ring is provided with a plurality of outer ring buckle pieces that are respectively locked with the outer ring buckle grooves.

In the bearing component of the bicycle head tube assembly, at least one outer ring positioning portion is protruding from the outer ring, or at least one inner ring positioning portion is protruding from the positioning ring.

In the bearing assembly of the bicycle head tube assembly, each bearing assembly includes an outer ring, a bearing and a positioning ring, and the bearing is rotatably disposed between the outer ring and the positioning ring. In addition, a plurality of limiting protrusions spaced at specific angles are protruding from the inner periphery of the outer ring, and at least one positioning protrusion that can abut against the limiting protrusions on the outer ring is protruded from the positioning ring. .

The invention also provides a bicycle head tube assembly, which includes a head tube and at least one bearing assembly, wherein each bearing assembly includes an outer ring, a bearing and a positioning ring, and the bearing is rotatably It is arranged between the outer ring and the positioning ring, and is protruding on the inner periphery of the outer ring. There are a plurality of limiting protrusions spaced at specific angles, and the positioning ring is provided with at least one positioning protrusion that can abut against the limiting protrusions on the outer ring.

In the bicycle head tube set, the bearing includes an inner ring and an outer ring that can relatively rotate. The inner ring and the outer ring of the bearing are respectively engaged with the positioning ring and the outer ring.

In the bicycle head tube set, a plurality of buckle grooves are concavely formed on the inner circumferential surface of the inner ring of the bearing, and a plurality of buckle pieces are provided on the positioning ring to respectively lock with the buckle grooves; the bearing The outer peripheral surface of the outer ring is concavely formed with a plurality of outer ring buckle grooves, and the outer ring is provided with a plurality of outer ring buckle pieces that are respectively locked with the outer ring buckle grooves.

The bicycle head tube set has at least one outer ring positioning portion protruding from the outer ring of each bearing, and at least one positioning portion on the inner wall of the head tube that can be concave and convex with each other. The engaging positioning part.

In the bicycle head tube assembly, each bearing component is sleeved on a handlebar vertical tube, in which at least one inner ring positioning portion is protruding from the positioning ring of each bearing component, and is further provided with an inner ring positioning portion on the outer wall of the handlebar vertical tube. At least one standpipe positioning portion can engage with the inner ring positioning portion on the positioning ring concavely and convexly.

Through the above technical means, the present invention can limit the angle at which the handlebar riser can rotate relative to the head tube through the mutual abutment of the positioning convex portion on the positioning ring and the limiting convex portion on the outer ring, thereby preventing the bicycle faucet from rotating. If the angle is too large, accidents such as crashes may occur, in order to improve the safety of bicycle riding.

10: Head tube

12: Positioning Department

20:Bearin component

22:Outer ring

221: Outer ring buckle

222: Limiting convex part

224: Outer ring positioning part

25:Pelin

251: Outer ring buckle groove

252:Buckle

26: Positioning circle

261: Inner ring positioning part

262: Positioning convex part

264:Buckle groove

30: Handle riser

32: Standpipe positioning part

Figure 1 is a three-dimensional appearance view of the combination of the head tube assembly and the front fork tube of the present invention.

Figure 2 is an exploded perspective view of the head tube assembly of the present invention.

Figure 3 is an exploded three-dimensional view of the bearing of the present invention.

Figure 4 is a bottom view of the bearing of the present invention.

Figure 5 is a bottom view of the bearing of the present invention with a limited rotation angle.

The present invention mainly provides a bicycle head tube assembly. Please refer to Figures 1 and 2 together. It can be seen from the figures that the head tube assembly of the present invention is mainly used for a handlebar riser 30 to rotatably penetrate therein. The head tube assembly mainly includes a head tube 10 and at least one bearing assembly 20 , where the number of bearing assemblies 20 is one or two. When the number of bearing assemblies 20 is two, they are respectively arranged on the head tube 10 The top and bottom ends of the handlebar 30 are sleeved on the bearing assembly 20, whereby the bearing assembly 20 can be used to smoothly rotate the handlebar riser 30 relative to the head tube 10 to change the direction of travel of the bicycle.

Please also refer to Figures 2 and 3. The bearing assembly 20 of the present invention mainly includes an outer ring 22, a bearing 25 and a positioning ring 26. The outer ring 22 and the inner wall of the head tube 10 cannot rotate relative to each other. The positioning ring 26 and the outer wall of the handle riser 30 are coupled to each other in a non-rotatable manner. The bearing 25 can be a common bearing on the market, having an inner ring and an outer ring that can relatively rotate, and the bearing 25 is disposed between the outer ring 22 and the positioning ring 26 . A plurality of limiting protrusions 222 spaced at specific angles are protruding from the inner periphery of the outer ring 22 , and at least one protruding part 222 is protruded from the positioning ring 26 to offset the limiting protrusions 222 on the outer ring 22 . The positioning protrusion 262 depends on it.

Furthermore, at least one outer ring positioning portion 224 is protruding on the outer ring 22. As shown in the figure, the outer ring positioning portion 224 is a convex portion, and at least one outer ring positioning portion 224 is provided on the inner wall of the head tube 10. The positioning portion 12 can engage with the outer ring positioning portion 224 of the outer ring 22 concavely and convexly. The positioning portion 12 of the head tube 10 can be a positioning groove. Through the outer ring positioning portion 224 on the outer ring 22 and the head tube The relative concave and convex engagement of the positioning portion 12 on the inner wall of 10 not only allows the bearing assembly 20 to be firmly positioned relative to the head tube 10, but also prevents the outer ring 22 from being It will rotate relative to the head tube 10. In addition, the outer ring positioning portion 224 on the outer ring 22 can also be set as a positioning groove, and the positioning portion 12 provided on the inner wall of the head tube 10 can be a bump, or it can achieve The same concave and convex snap effect.

Furthermore, at least one inner ring positioning portion 261 is protruding from the positioning ring 26 , and the inner ring positioning portion 261 is a convex portion, and at least one spacer that can be connected with the positioning ring 26 is provided on the outer wall of the handle vertical tube 30 . The inner ring positioning portion 261 engages with the riser positioning portion 32 concavely and convexly. The vertical tube positioning portion 32 of the handle vertical tube 30 can be a positioning groove. Through the relative concave and convex engagement between the inner ring positioning portion 261 and the vertical tube positioning portion 32, the bearing assembly 20 can be stably positioned relative to the handle vertical tube 30. In addition, the positioning ring 26 can also be prevented from rotating relative to the handle riser 30. In addition, the inner ring positioning portion 261 on the positioning ring 26 can also be set as a positioning groove, and the riser provided on the outer wall of the handle riser 30 The positioning portion 32 can be a convex block, and can also achieve the same concave-convex engaging effect.

Preferably, the inner and outer rings of the bearing 25 and the positioning ring 26 and the outer ring 22 can be in a mutually engaged and combined relationship. For example, a plurality of buckles 252 are protrudingly formed on the inner circumferential surface of the inner ring of the bearing 25, and a plurality of buckle grooves are provided on the positioning ring 26 to respectively engage with the buckles 252 on the inner ring of the bearing 25. 264, through the mutual locking of the buckle piece 252 and the buckle groove 264, the positioning ring 26 and the inner ring of the bearing 25 can be combined with each other without rotating each other. Secondly, the buckle piece 252 can also be set at the positioning position as shown in Figure 3. ring 26, and a buckle groove 264 is provided on the inner ring of the bearing 25 so that the two can be combined with each other.

A plurality of outer ring buckling grooves 251 are concavely formed on the outer circumferential surface of the outer ring of the bearing 25, and a plurality of buckling grooves 251 are provided on the inner circumferential surface of the outer ring 22 to respectively engage with the outer ring buckling grooves 251 on the bearing 25. The outer ring buckle 221, through the mutual locking of the outer ring buckle 221 and the outer ring buckle groove 251, can make the outer ring 22 and the outer ring of the bearing 25 combined with each other without rotating each other. Secondly, the outer ring can also be The buckle piece 221 is provided on the outer ring of the bearing 25, and the outer ring buckle groove 251 is provided on the outer ring 22 so that the two can be combined with each other.

Please refer to Figure 4 and Figure 5 together. When the cyclist turns the handle on the handlebar riser 30 to turn the bicycle, the bearing 25 of the bearing assembly 20 and the concave and convex engagement with the inner ring of the bearing 25 The positioning ring 26 can be driven by the handle riser 30 to rotate relative to the outer ring 22 fixed in the head tube 10 When the positioning ring 26 rotates until the positioning protrusion 262 on the positioning ring 26 abuts the limiting protrusion 222 on the outer ring 22, the bearing 25 and the positioning ring 26 can stop relative to the outer ring 22. Rotate, thereby limiting the angle at which the handlebar riser 30 can rotate relative to the head tube 10 to prevent the handlebar riser 30 from rotating at an excessive angle relative to the headtube 10 to prevent accidents such as unstable driving or crashes, and thereby prevent accidents such as unstable driving or crashes. To improve the safety of bicycle riding.

It can be seen from the above that various modifications and changes can be made without departing from the spirit of the present invention and the scope of the novel concepts, and the specific embodiments disclosed in the present invention are not intended to limit the present invention. This disclosure includes All modifications fall within the scope of the attached patent application.

20:Bearin component

22:Outer ring

221: Outer ring buckle

222: Limiting convex part

224: Outer ring positioning part

25:Pelin

251: Outer ring buckle groove

252:Buckle

26: Positioning circle

261: Inner ring positioning part

262: Positioning convex part

264:Buckle groove

Claims (8)

A bearing component of a bicycle head tube assembly, which includes an outer ring, a bearing and a positioning ring. The bearing is arranged between the outer ring and the positioning ring, and is protruding on the inner periphery of the outer ring. There are a plurality of limiting protrusions spaced at specific angles. The positioning ring is provided with at least one positioning protrusion that can abut against the limiting protrusion on the outer ring. The outer ring is provided with at least one protruding part. An outer ring positioning part, or at least one inner ring positioning part is protruding from the positioning ring. The bearing component of the bicycle head tube set as claimed in claim 1, wherein the bearing includes an inner ring and an outer ring that can relatively rotate, and the inner ring and the outer ring of the bearing are respectively connected with the positioning ring and the outer ring. The circles interlock. The bearing component of the bicycle head tube assembly as described in claim 2, wherein a plurality of buckle grooves are concavely formed on the inner circumferential surface of the bearing inner ring, and a plurality of buckle grooves are provided on the positioning ring to respectively engage with the buckle grooves. The outer peripheral surface of the bearing outer ring is concavely formed with a plurality of outer ring buckle grooves, and the outer ring is provided with a plurality of outer ring buckle pieces that are respectively buckled with the outer ring buckle grooves. A bicycle head tube assembly, which includes a head tube and at least one bearing assembly, wherein each bearing assembly includes an outer ring, a bearing and a retaining ring, and the bearing is rotatably arranged on the outer ring Between the ring and the positioning ring, there are a plurality of limiting protrusions spaced at specific angles on the inner periphery of the outer ring, and at least one limiting protrusion on the outer ring is protruding on the positioning ring. The positioning convex parts are against each other, and at least one outer ring positioning part is protruding on the outer ring of each bearing, and at least one positioning part on the outer ring is provided on the inner wall of the head tube, which can be concave and convex with each other. The engaging positioning part. The bicycle head tube set according to claim 4, wherein the bearing includes an inner ring and an outer ring that can rotate relatively, and the inner ring and the outer ring of the bearing are respectively interlocked with the positioning ring and the outer ring. . The bicycle head tube set according to claim 5, wherein a plurality of buckle grooves are concavely formed on the inner circumferential surface of the inner ring of the bearing, and a plurality of buckle pieces are provided on the positioning ring to respectively lock with the buckle grooves. ; The outer peripheral surface of the bearing outer ring is concavely formed with a plurality of outer ring buckle grooves, and the outer ring is provided with a plurality of outer ring buckle pieces that are respectively locked with the outer ring buckle grooves. As for the bicycle head tube set described in any one of claims 4 to 6, each bearing component is sleeved on a handlebar vertical tube, and at least one inner ring is protruding from the positioning ring of each bearing component The positioning part is further provided with at least one vertical pipe positioning part on the outer wall of the handle vertical pipe that can engage with the inner ring positioning part on the positioning ring concavely and convexly. As for the bicycle head tube set described in claim 7, each bearing is sleeved on a handle vertical tube, wherein at least one inner ring positioning portion is protruding from the positioning ring of each bearing component, and is located on the handle. The outer wall of the standpipe is provided with at least one standpipe positioning portion that can engage with the inner ring positioning portion on the positioning ring concavely and convexly.

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