TWM602520U - Quick-release mechanism of bicycle with simplified structure - Google Patents

Abstract

This creation is about a bicycle quick release mechanism, which includes a spindle and a handle. One end of the spindle is integrally formed with a first engaging portion and a shoulder portion, which cooperate with each other to fix the spindle to the bicycle. The handle has a sleeve and a handle connected to the sleeve. The sleeve is sleeved on one end of the mandrel. When the handle is in the engaged position, the sleeve is engaged with the first engaging part of the mandrel so that the handle cannot be rotated. The clamping part enables the handle to be rotated at will to adjust the angle of the handle. In this way, the bicycle quick release mechanism of this invention can simplify the structure and reduce the volume.

Description

Bicycle quick release mechanism capable of simplifying structure

This creation is related to a quick-release mechanism for bicycle wheels, especially a bicycle quick-release mechanism that can simplify the structure and reduce the volume.

In recent years, with changes in usage, the design of bicycles has begun to focus on the design of quick-release mechanisms, allowing riders to easily and quickly remove components such as the front and rear wheels, so that the bicycle can be placed in a car or public transportation. After reaching the fixed point, you can easily and quickly reassemble the disassembled components. In other words, the setting of the quick release mechanism allows the bicycle to be used in more diverse ways. However, the quick release mechanism disclosed in US 2015/0054254 has the problem of too many components, not only the assembly is troublesome, but the overall structure is also more complicated, so There is still room for improvement in structure.

The main purpose of this creation is to provide a bicycle quick disassembly mechanism with simple structure, convenient assembly, reduced volume, and good positioning effect.

In order to achieve the above-mentioned main purpose, the bicycle quick release mechanism of this creation includes a spindle and a handle. The mandrel has a first end and a second end. The outer peripheral surface of the first end is integrally formed with a first engaging portion and a shoulder adjacent to the first engaging portion. They cooperate with each other to fix the spindle to the bicycle; the handle has a sleeve and a handle connected to the sleeve, and when the handle is in the engaged position, the sleeve is clamped to the first engagement of the spindle Part, so that the handle cannot rotate relative to the spindle. When the handle is pulled out to the rotating position, the sleeve is separated from the first engaging part of the spindle, so that the handle can rotate relative to the spindle. Then you can adjust the angle of the handle.

It can be seen from the above that the handle of the handle can be adjusted to an appropriate angle according to actual needs, so as to avoid collisions or hooks with foreign objects and accidents of rollover or loose wheels. When adjusting, first pull out the handle to the rotating position until the handle is adjusted to a proper angle, and then push the handle inward to the engagement position, so that the sleeve and the handle are snapped together. Complete the positioning of the handle. In other words, the quick release mechanism of this creation utilizes the integrated structural design of the mandrel, which is not only easy to assemble, but also can effectively simplify the structure and reduce the volume, and then allow the handle to rotate freely when the handle is pulled out to the rotating position To adjust the angle of the handle, and in addition, it has a good positioning effect when the handle is pushed inward to the engaged position, and the overall operation is quite easy.

Preferably, the inner peripheral surface of the sleeve is integrally formed with a second engaging portion, and when the handle is in the engaged position, the second engaging portion of the sleeve is snapped on the mandrel The first engaging portion prevents the handle from rotating relative to the spindle. When the handle is located at the rotating position, the second engaging portion of the sleeve is separated from the first engaging portion of the spindle, so that the handle can be relatively The spindle rotates.

Preferably, an end cap is sleeved on the first end of the mandrel, and the end cap has a stopper. When the handle is in the rotating position, the second engaging portion of the sleeve abuts against the end cap The stopper makes the sleeve pass through the stopper of the end cap as a stop point when the sleeve is pulled out to prevent it from falling out.

Preferably, a positioning unit is provided between the handle and the sleeve, and the positioning unit restricts the movement of the handle between the engagement position and the rotation position.

Preferably, the first end of the spindle has a radial perforation, the positioning unit has at least one ball and an elastic member, the ball is arranged in the radial perforation of the spindle, and when the handle is at the engagement position At this time, the ball partially protrudes from the radial perforation of the mandrel and abuts against the inner peripheral surface of the sleeve to provide a positioning effect on the handle. When the handle is at the rotating position, the ball is affected by the sleeve. The inner peripheral surface of the cylinder is squeezed and retracted into the radial perforation of the mandrel, and the elastic member abuts the ball to provide elastic force to push the ball in the direction of the sleeve.

Preferably, the number of the radial perforation and the number of the balls can be increased to two. In the case of two balls, the two ends of the elastic member respectively abut against one of the balls.

Preferably, the mandrel has a shaft hole that penetrates the first end and the second end and communicates with the radial through hole, so that the mandrel can be reduced in weight while maintaining sufficient strength.

Preferably, the outer peripheral surface of the first end of the mandrel has an external thread, the end cap has an internal screw hole, and the internal screw hole of the end cap is provided on the external thread of the first end of the mandrel to facilitate Assembly.

Preferably, an elastic washer is sleeved on the outer peripheral surface of the end cap, and the elastic washer abuts against the inner peripheral surface of the sleeve, so as to reduce the occurrence between the two when the sleeve moves relative to the mandrel. Surface wear.

Preferably, a gasket is sleeved on the first end of the mandrel, and the gasket abuts against the shoulder of the mandrel and is located on two opposite sides of the shoulder with the sleeve, so that the mandrel is assembled in When the front (rear) fork is used, the spacer can increase the stability.

Preferably, the outer peripheral surface of the second end of the mandrel has an external thread, and the mandrel is assembled into the corresponding screw hole of the front (rear) fork through the outer thread of the second end.

Preferably, when the sleeve is in the engaged position, the second engaging portion of the sleeve abuts against the shoulder of the mandrel, so that when the sleeve is pushed inwardly, it can act through the shoulder of the mandrel. Stop point.

Preferably, the first engaging portion of the mandrel and the second engaging portion of the sleeve are both polygonal, so that the two can be engaged with each other.

The detailed structure, characteristics, assembly or use of the quick release mechanism provided by this creation will be described in the detailed description of the subsequent implementation. However, those with ordinary knowledge in the field of creation should be able to understand that these detailed descriptions and specific embodiments listed in the implementation of this creation are only used to illustrate the creation and are not intended to limit the scope of patent applications for this creation.

The applicant first explains here that throughout the specification, including the following embodiments and claims in the scope of the patent application, the nouns related to directionality are based on the directions in the drawings. Secondly, in the following embodiments and drawings, the same element numbers represent the same or similar elements or structural features.

Please refer to FIGS. 1 and 2, the bicycle quick release mechanism 10 of the present invention includes a spindle 20, a handle 30, an end cover 40, and a positioning unit 50.

The mandrel 20 is processed in an integrated manner. As shown in Fig. 2, the mandrel 20 has a first end 21 and a second end 26. The outer peripheral surface of the first end 21 has a first external thread 22 and a first external thread 22 in sequence from the outside to the inside. An engaging portion 23 and a shoulder portion 24. The first end 21 has two radial through holes 25 opposite to each other between the first external thread 22 and the first engaging portion 23. As for the outer peripheral surface of the second end 26, It has a second external thread 27 for assembly with the corresponding screw hole (not shown in the figure) of the front (rear) fork, whereby the mandrel 20 can use the shoulder 24 and the second external thread 27 to cooperate with each other And fixed to the bicycle. In addition, the first end 21 of the mandrel 20 is sleeved with a washer 29 made of metal material. The washer 29 abuts between the shoulder 24 of the mandrel 20 and the front (rear) fork, so that the mandrel 20 When assembled to the front (rear) fork, the spacer 29 increases stability. As shown in Figures 2 and 3, the mandrel 20 further has a shaft hole 28. The shaft hole 28 penetrates the first end 21 and the second end 26 and communicates with two radial through holes 25 at the same time. , So that the mandrel 20 can achieve the effect of reducing weight while maintaining sufficient strength.

The handle 30 has a sleeve 31 and a handle 32 connected to the sleeve 31. The sleeve 31 is integrally formed on the inner peripheral surface to form a second engaging portion 33 in a 24-sided shape. The handle 30 is sleeved on the first end 21 of the mandrel 20 by a sleeve 31 and can move between the meshing position P1 shown in FIG. 3 and the rotating position P2 shown in FIG. 4 along the axial direction of the mandrel 20 , When the handle 30 is in the engagement position P1 as shown in FIG. 3, the second engaging portion 33 of the sleeve 31 is engaged with the first engaging portion 23 of the spindle 20 on the one hand, so that the sleeve 31 cannot be opposed to the spindle 20 rotates, and on the other hand, it abuts against the shoulder 24 of the mandrel 20, so that when the sleeve 31 is pushed inward, it passes through the shoulder 24 of the mandrel 20 as a stopping point; when the handle 30 is rotated as shown in Figure 4 At the position P2, the second engaging portion 33 of the sleeve 31 is separated from the first engaging portion 23 of the spindle 20, so that the sleeve 31 can rotate freely relative to the spindle 20.

An inner screw hole 41 is machined into the end cover 40 in an integral manner. The end cover 40 is arranged in the sleeve 31 of the handle 30 and the inner screw hole 41 is set on the first external thread 22 of the spindle 20. The inner end surface has a stopper 42. When the handle 30 is at the rotating position P2 as shown in FIG. 4, the stopper 42 of the end cap 40 blocks the second engaging portion 33 of the sleeve 31 from passing through, so that the sleeve 31 When being pulled outward, the stop portion 42 of the end cover 40 serves as a stop point to prevent the sleeve 31 from falling out. In addition, an elastic washer 43 made of plastic or rubber is sleeved on the outer peripheral surface of the end cap 40. The elastic washer 43 abuts against the inner peripheral surface of the sleeve 31 to reduce the difference between the sleeve 31 and the two when moving. Surface wear caused by the time.

The positioning unit 50 has two balls 51 (actually, at least one is sufficient) and an elastic member 52 (here, a compression spring is taken as an example). The two balls 51 are arranged in the two radial holes 25 of the spindle 20. The elastic member 52 passes through the shaft hole 28 and presses against the two balls 51 with its two ends to provide elastic force to push the two balls 51 toward the sleeve. Push in the direction of 31. Thereby, when the handle 30 is located at the engaging position P1 as shown in FIG. 3, the two balls 51 partially protrude from the two radial through holes 25 and simultaneously abut against the inner peripheral surface of the sleeve 31. When the handle 30 is positioned as At the rotation position P2 shown in FIG. 4, the two balls 51 are simultaneously squeezed by the second engaging portion 33 of the sleeve 31 and retract into the two radial through holes 25. With the positioning effect provided by the positioning unit 50 on the sleeve 31, the handle 30 will not be accidentally moved from the engaged position P1 to the rotating position P2 due to the impact of road vibration or other external force factors.

It can be seen from the above that when the angle of the handle 32 is to be adjusted, firstly, the handle 30 is pulled out to the rotation position P2 shown in FIG. 4 by overcoming the elastic force exerted by the elastic member 52 on the two balls 51, forcing the two balls 51 to retreat Into the two radial perforations 25 of the mandrel 20, the elastic member 52 will be compressed by the two balls 51 at this time to accumulate the elastic restoring force, and then the sleeve 31 can be rotated to adjust the angle of the handle 32 to avoid gripping When the handle 32 collides with a foreign object or catches, the vehicle rolls over or the wheel loosens accidentally, until the handle 32 is adjusted to a proper angle, then the handle 30 is pushed inward to the engagement position P1 as shown in Fig. 5. On the one hand The second engaging portion 33 of the sleeve 31 is engaged with the first engaging portion 23 of the spindle 20 again, on the other hand, the elastic restoring force released by the elastic member 52 is used to force the two balls 51 to abut the sleeve 31 In this way, the positioning of the handle 30 is completed.

In summary, the quick release mechanism 10 of the present creation utilizes the integrated structure design of the spindle 20, which can achieve the effects of easy assembly, simplified structure and reduced volume, and allows gripping when the handle 30 is pulled out to the rotation position P2 The handle 32 can be rotated freely so as to adjust the angle of the handle 32, and then has a good positioning effect when the handle 30 is pushed inward to the engaging position P1, and the operation is quite simple and convenient.

10: Quick release mechanism 20: Mandrel 21: first end 22: The first external thread 23: The first engagement part 24: Shoulder 25: Radial perforation 26: second end 27: second external thread 28: Shaft hole 29: Gasket 30: handle 31: sleeve 32: Grip 33: The second engaging part P1: meshing position P2: Rotation position 40: end cap 41: Internal screw hole 42: stop 43: Elastic washer 50: positioning unit 51: Ball 52: Elastic

Figure 1 is a three-dimensional view of the quick release mechanism created. Figure 2 is a three-dimensional exploded view of the quick release mechanism created. Figure 3 is a cross-sectional view of the quick release mechanism created, mainly showing that the sleeve is in the engaged position. Figure 4 is similar to Figure 3, mainly showing that the sleeve is in a rotating position. Fig. 5 is similar to Fig. 3, mainly showing that the sleeve is in the engaged position and the handle rotates at a predetermined angle relative to the spindle.

20: Mandrel

21: first end

22: The first external thread

23: The first engagement part

24: Shoulder

25: Radial perforation

26: second end

27: second external thread

28: Shaft hole

29: Gasket

30: handle

31: sleeve

32: Grip

33: The second engaging part

40: end cap

41: Internal screw hole

42: stop

43: elastic washer

50: positioning unit

51: Ball

52: Elastic

Claims (12)

A bicycle quick release mechanism, including: A mandrel has a first end and a second end. The outer peripheral surface of the first end integrally forms a first engaging portion and a shoulder adjacent to the first engaging portion. An outer thread is integrally formed on the outer peripheral surface, and the shoulder of the first end and the outer thread of the second end cooperate with each other to fix the spindle to the bicycle; and A handle having a sleeve and a handle connected to the sleeve, the handle is sleeved on the first end of the mandrel with the sleeve and can be at an engagement position and a rotation position along the axis of the mandrel When the handle is located in the engaged position, the sleeve is clamped to the first engaging portion of the spindle, so that the handle cannot rotate relative to the spindle. When the handle is in the rotating position At this time, the sleeve is separated from the first engaging portion of the spindle, so that the handle can rotate freely relative to the spindle. The bicycle quick release mechanism according to claim 1, wherein the inner peripheral surface of the sleeve integrally forms a second engaging portion, and when the handle is located at the engaging position, the second engaging portion of the sleeve engages The first engaging portion connected to the spindle, when the handle is located at the rotating position, the second engaging portion of the sleeve is separated from the first engaging portion of the spindle. The bicycle quick release mechanism according to claim 2, which further includes an end cover provided on the first end of the spindle and having a stopper. When the handle is located at the rotating position, the sleeve The second engaging portion abuts against the stopping portion of the end cap. The bicycle quick release mechanism according to any one of claims 1 to 3, wherein a positioning unit is provided between the handle and the sleeve, and the positioning unit restricts the handle from moving between the engagement position and the rotation position . The bicycle quick release mechanism according to claim 4, wherein the first end of the spindle has a radial perforation, the positioning unit has at least one ball and an elastic member, and the at least one ball is arranged on the diameter of the spindle Inwardly of the perforation, when the handle is in the engaged position, the at least one ball partially protrudes from the radial perforation of the mandrel and abuts against the inner peripheral surface of the sleeve. When the handle is in the rotating position, the At least one ball is squeezed by the inner peripheral surface of the sleeve and retreats into the radial perforation of the mandrel, and the elastic member abuts against the at least one ball to provide elastic force for the at least one ball to the sleeve Push in the direction of the top. The bicycle quick release mechanism according to claim 5, wherein the first end of the spindle has two radial holes, the positioning unit has two balls, and each ball is arranged in one of the radial holes, and the elasticity The two ends of the piece press against the ball respectively. The bicycle quick release mechanism according to claim 5, wherein the spindle has a shaft hole, the shaft hole penetrates the first end and the second end and communicates with the radial hole. The bicycle quick release mechanism of claim 3, wherein the outer peripheral surface of the first end of the spindle is integrally formed with an external thread, the end cover is integrally formed with an inner screw hole, and the inner screw hole of the end cover is provided The external thread on the first end of the mandrel. The bicycle quick release mechanism according to claim 3, wherein an elastic washer is sleeved on the outer peripheral surface of the end cap, and the elastic washer abuts against the inner peripheral surface of the sleeve. The bicycle quick release mechanism according to claim 2, wherein when the sleeve is in the engaged position, the second engaging portion of the sleeve abuts against the shoulder of the spindle. The bicycle quick release mechanism according to claim 2, wherein the first engaging portion of the spindle and the second engaging portion of the sleeve are both polygonal. The bicycle quick release mechanism according to claim 1, wherein a gasket is sleeved on the first end of the spindle, and the gasket abuts against the shoulder of the spindle and is located on the two sides of the shoulder with the sleeve. Opposite side.

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