TWI710496B - Bicycle brake assembly - Google Patents

Abstract

A bicycle brake assembly is configured to be disposed on a bicycle wheel. The bicycle brake assembly includes a fork, a movable arm and at least one brake pad. The fork has two pivot portions opposite to each other. The bicycle wheel is configured to be disposed on the pivot portions of the fork and be rotatable with respect to the fork along a central line of the pivot portions of the fork. The movable arm is pivotably disposed on the fork, and a pivot axis of the movable arm is parallel to the central line of the pivot portions of the fork. The brake pad is disposed on the movable arm and is configured to be in contact with the bicycle wheel.

Description

Bicycle brake components

The invention relates to a brake assembly, in particular a bicycle brake assembly.

In recent years, the bicycle market has developed vigorously. Whether it is a high-end racing bicycle or a popular bicycle used as a means of transportation and entertainment, it has been favored by consumers, prompting manufacturers to pay more attention to the needs of users for bicycle functions. Car body materials, equipment and functions are continuously improved and refined.

The braking methods of bicycles can be roughly divided into disc brakes and wheel brakes. The disc brake system brakes the bicycle by clamping the disc arranged on the wheel, while the wheel brake system brakes the bicycle by clamping the wheel directly by the caliper. In terms of wheel brakes, currently bicycles are more commonly used with C-clamp brakes. In the C-type clamp brake configuration, the pivot axis of the two clamp arms that are pivotally connected is perpendicular to the rotation axis of the wheel, and the two clamp arms are pulled by a cable connected to the brake handle to drive the two clamp arms respectively. The brake pads are close to each other to clamp the wheel. However, the force arm formed by the position where the cable pulls the second clamping arm is shorter than the resistance arm formed by the second brake pad clamping the wheel, so the process of the user pressing the brake handle to brake the wheel is more laborious.

The present invention is to provide a bicycle brake assembly, so as to solve the problem that the C-clamp brake configuration described in the prior art is more laborious in use.

A bicycle brake assembly disclosed in an embodiment of the present invention is suitable for a wheel and includes a fork tube, a rocker arm and at least one brake pad. The fork tube has two opposite pivoting parts. The wheel is arranged on the two pivotal parts of the fork tube, and the center line of the two pivotal parts of the fork tube can be rotated relative to the fork tube. The rocker arm is pivoted on the fork tube, and the pivot axis of the rocker arm is used to be parallel to the center line of the two pivoting parts. The brake pads are arranged on the rocker arm and used to contact the wheels.

Another embodiment of the present invention discloses a bicycle brake assembly suitable for a wheel and includes a fork tube, a rocker arm and two brake pads. The fork tube has two opposite pivoting parts. The wheel is arranged on the two pivotal parts of the fork tube, and the center line of the two pivotal parts of the fork tube can be rotated relative to the fork tube. The rocker arm is pivoted on the fork tube. The two brake plates are respectively arranged on two opposite sides of the rocker arm and used to contact the wheels. When the rocker arm pivots relative to the fork tube, the distance between the two brake pads remains unchanged.

Another embodiment of the present invention discloses a bicycle brake assembly suitable for a wheel and includes a fork tube, a rocker arm and two brake pads. The fork tube has two opposite pivoting parts, and the wheel is used to be arranged on the two pivoting parts of the fork tube. The rocker arm includes two arm parts, the two arm parts are respectively pivoted on two opposite sides of the fork tube, and the pivot axis of the two arm parts forms an obtuse angle. The two brake plates are respectively arranged on the two arms. The rocker arm can pivot between a release position and a braking position. When the rocker arm is in the release position, the two brake pads are separated by a first minimum distance. When the rocker arm is in the braking position, the two brake pads are separated by a second minimum distance that is less than the first minimum distance.

A bicycle brake assembly disclosed in yet another embodiment of the present invention is adapted to be pivoted on a wheel of a fork tube, and includes a rocker arm and at least one brake pad. The rocker arm is used to pivot on the fork tube, and the pivot axis of the rocker arm is used to be parallel to the rotation axis of the wheel. The brake pads are arranged on the rocker arm and used to contact the wheels.

A bicycle brake assembly disclosed in yet another embodiment of the present invention is adapted to be pivoted on a wheel of a fork tube and includes a rocker arm and two brake pads. The rocker arm includes two arms. Each arm includes a pivot part, a connecting part and a joining part, and the pivot part of each arm is connected to the joining part through the connecting part. The two connecting parts are combined, and the two pivoting parts are respectively used for pivoting on two opposite sides of the fork pipe, so that the rocker arm can swing in a direction opposite to the rotation direction of the wheel. The two brake plates are respectively arranged on the two connecting parts, and are respectively located between the pivotal part and the joint part of one of the arm parts.

According to the bicycle brake assembly of the above-mentioned embodiment, by pivoting the rocker arm to the fork tube, the pivot axis of the rocker arm is parallel to the center line of the two pivotal joints. During the pivoting of the rocker arm relative to the fork tube, one of the two brake plates The distance remains the same, or the pivot axis of the two arms of the rocker arm is set at an obtuse angle, so that the bicycle brake assembly becomes a rocker type brake configuration, and the user can save effort in the process of braking the wheel.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention and provide a further explanation of the scope of the patent application of the present invention.

Please refer to Figure 1 to Figure 4. Fig. 1 is a perspective view of a bicycle brake assembly and wheels according to a first embodiment of the present invention. Figure 2 is an exploded schematic diagram of Figure 1. Fig. 3 is a schematic side view of Fig. 1. Fig. 4 is a schematic cross-sectional view of Fig. 1.

In this embodiment, the bicycle brake assembly 1 is used to be installed on a wheel 2. The bicycle brake assembly 1 includes a fork tube 10, a rocker arm 20 and two brake pads 30. In addition, in this embodiment or other embodiments, the bicycle brake assembly 1 may further include a driving cable 40 and an elastic member 50.

The fork tube 10 is, for example, a front fork tube of a bicycle. The fork pipe 10 has two opposite pipe portions 11, and the two pipe portions 11 each have a pivoting portion 111. The wheel 2 is used to be arranged at the two pivotal portions 111 of the fork tube 10. The two pivoting parts 111 of the fork tube 10 have the same centerline C, and the wheel 2 can rotate relative to the fork tube 10 with the centerline C of the two pivoting parts 111 of the fork tube 10 as an axis. In other words, the center line C of the two pivoting portions 111 is the rotation axis of the wheel 2.

The rocker 20 includes two arm portions 21, and each arm portion 21 includes a pivot portion 211, a connecting portion 212 and a joining portion 213. In each arm portion 21, the pivot portion 211 is connected to the coupling portion 213 through the connecting portion 212. The two coupling parts 213 are fixed by screw locking, for example, and the two pivoting parts 211 are respectively pivoted on the two tube parts 11 of the fork tube 10 and located between the two tube parts 11. That is to say, the two pivotal portions 211 of the two arm portions 21 are pivoted on the two opposite inner side surfaces of the two pipe portions 11 of the fork pipe 10 respectively. The pivot axis P of the two pivoting parts 211 is coaxial, and the pivot axis P of the two pivoting parts 211 is parallel to the center line C of the two pivoting parts 111. In this way, the integral rocker arm 20 can swing in a direction opposite to the rotation direction of the wheel 2 (clockwise or counterclockwise as shown in FIG. 3). The two connecting portions 212 each have an adjusting long slot 2121, and the extending direction of the two adjusting long slots 2121 is perpendicular to the pivot axis P of the two pivoting portions 211.

The two brake pads 30 are respectively disposed on the two connecting portions 212. In this embodiment, the two brake pads 30 have the same structure, and the two brake pads 30 are arranged on the two connecting portions 212 in the same manner. Therefore, only the configuration of one of the brake pads 30 on one of the connecting portions 212 will be described in detail below. The brake pad 30 is disposed in the long adjusting slot 2121 of the connecting portion 212 and located between the connecting portion 213 and the pivoting portion 211. Furthermore, the brake pad 30 includes a wear portion 31 and a coupling column portion 32 connected to each other, and the bicycle brake assembly 1 may further include a collar 60 and a coupling member 70. The collar 60 is sleeved on the coupling column portion 32 of the brake pad 30. The coupling column portion 32 passes through the long adjustment groove 2121 of the coupling portion 212, and the wear portion 31 and the collar 60 of the brake pad 30 are located between the two coupling portions 212, and the collar 60 is closer to the coupling column portion 32 than the wear portion 31 Pierced connecting portion 212. The coupling column portion 32 has, for example, an external thread 321, and the coupling member 70 has, for example, an internal thread 71. The internal thread 71 of the coupling member 70 is coupled with the external thread 321 of the coupling column portion 32, and the connecting portion 212 is sandwiched between the collar 60 and the coupling member 70. In this embodiment, the distance T between the wear parts 31 of the two brake pads 30 is, for example, equal to the width W of the wheel frame 3 of the wheel 2, and the wear parts 31 of the two brake pads 30 are used to clamp the wheel frame 3 of the wheel 2. .

In this embodiment, the connecting portion 212 is provided with the adjusting slot 2121, so that the distance between the brake pad 30 and the pivot axis P of the pivoting portion 211 can be adjusted according to the type of the wheel 2. In detail, if the wheel is a mountain bike wheel, because the wheel diameter of the wheel is small, the brake pad 30 needs to be arranged at the position of the adjustment slot 2121 closer to the pivot axis P of the pivot portion 211, so as to brake The sheet 30 can be clamped to the rim of the wheel. On the other hand, if the wheel is a road vehicle wheel, the brake pad 30 needs to be arranged at a position farther away from the pivot axis P of the pivot portion 211 due to the larger diameter of the wheel.

In this embodiment, the fork tube 10 further has a through hole 12, the drive cable 40 is inserted through the through hole 12 of the fork tube 10, and one end of the drive cable 40 is fixed between the two joint portions 213 of the rocker arm 20 and drives The other end of the cable 40 is connected to the brake handle (not shown) of the bicycle. The elastic member 50 is, for example, a spring. The elastic member 50 is sleeved on the driving cable 40, one end of the elastic member 50 is fixed between the two joining parts 213, and the other end of the elastic member 50 is fixed to the fork tube 10. The elastic member 50 is used for exerting a force for the two connecting portions 213 to move away from the fork tube 10.

In this embodiment, the rocker arm 20 can pivot between a release position and a braking position. As shown in Figures 3 and 4, when the rocker arm 20 is in the release position, the wear part 31 of the two brake pads 30 is closer to the center line C of the second pivot part 111 of the fork tube 10 than the rim 3 of the wheel 2, and is different from The rim 3 of the wheel 2 keeps a distance. At this time, the wheels 2 are in a state where they are not braked.

When the brake handle is pressed, the brake handle pulls the drive cable 40, which drives the rocker arm 20 to move toward the braking position and compress the elastic member 50. During the movement of the rocker arm 20, the wear parts 31 of the two brake pads 30 gradually approach the wheel frame 3 of the wheel 2, and the distance between the wear parts 31 of the two brake pads 30 remains unchanged. Next, please refer to FIGS. 5 and 6. FIG. 5 is a schematic side view of the rocker arm of FIG. 3 in the braking position. Fig. 6 is a schematic cross-sectional view of the rocker arm of Fig. 4 in a braking position. When the rocker arm 20 is in the braking position, the wheel frame 3 of the wheel 2 will be caught between the wear parts 31 of the two brake pads 30 and be clamped by the wear parts 31 of the second brake pads 30 to brake the wheel 2.

In this embodiment, the distance T between the wear parts 31 of the two brake pads 30 is not limited to the width W of the rim 3 of the wheel 2. In other embodiments, the distance between the wear parts of the two brake pads may be slightly smaller than the width of the wheel frame. In this configuration, the wear part of the two brake pads can be made of a flexible material, and when the rocker arm is in the braking position, the wear part of the two brake pads is slightly deformed, so that the wheel frame can be locked into the two. Between the worn parts of the brake pads, the wheels are braked.

When the brake handle is released, the drive cable 40 is no longer affected by the brake handle. At this time, the elastic force of the compressed elastic member 50 is released, and the rocker arm 20 is moved from the braking position to the releasing position. In this way, the rotation of the wheel 2 is not hindered.

In this embodiment, as shown in FIGS. 5 and 6, by pivoting the rocker arm 20 on the fork tube 10, the pivot axis P of the rocker arm 20 is parallel to the center line C of the two pivoting portions 111 (the wheel 2 The rotation axis), and the distance between the two brake pads 30 remains unchanged during the pivoting of the rocker arm 20 relative to the fork tube 10, so that the bicycle brake assembly 1 becomes a rocker arm brake configuration. Moreover, in the rocker arm brake configuration, the force arm A1 formed by the drive cable 40 driving the rocker arm 20 to pivot is larger than the resistance arm A2 formed by the two brake plates 30 clamping the wheel 2, so the user can The process of pressing the brake handle to brake the wheel 2 saves effort.

The aforementioned rocker arm 20 includes two arm portions 21, but it is not limited. In other embodiments, the rocker arm may have only one arm. Under such a configuration, the number of brake pads of the bicycle brake assembly can be one.

In addition, the aforementioned fork tube 10 is a front fork tube of a bicycle, but it is not limited thereto. Please refer to FIG. 7. FIG. 7 is a perspective view of a bicycle brake assembly and a wheel according to a second embodiment of the present invention. In the bicycle brake assembly 1a of this embodiment, the fork tube 10a is the rear fork tube of the bicycle, and other components are similar to the foregoing embodiment, so no further description is given.

Next, please refer to Figures 8 to 10. Fig. 8 is an exploded schematic view of a bicycle brake assembly and wheels according to a third embodiment of the present invention. Fig. 9 is a schematic side view of the bicycle brake assembly and wheels of Fig. 8. 10 is a schematic cross-sectional view of the bicycle brake assembly and wheels of FIG. 8.

In this embodiment, the bicycle brake assembly 1b is used to be installed on a wheel 2. The bicycle brake assembly 1b includes a fork tube 10b, a rocker arm 20b, and two brake pads 30b. In addition, in this embodiment or other embodiments, the bicycle brake assembly 1b may further include a driving cable 40b and an elastic member 50b.

The fork tube 10b is, for example, a front fork tube of a bicycle. The fork tube 10b has two opposite tube portions 11b, and the two tube portions 11b each have a pivoting portion 111b. The wheel 2 is used to be arranged on the two pivotal portions 111b of the fork tube 10b.

The rocker arm 20b includes two arm portions 21b and 22b. The arm 21b includes a pivotal portion 211b, a connecting portion 212b, and a connecting portion 213b, and the arm 22b includes a pivotal portion 221b, a connecting portion 222b, and a connecting portion 223b. The pivot portion 211b is connected to the coupling portion 213b through the connecting portion 212b, and the pivot portion 221b is connected to the coupling portion 223b through the connecting portion 222b. The two pivoting portions 211b and 221b are respectively pivoted on the second pipe portion 11b of the fork pipe 10b and located between the two pipe portions 11b. The coupling portion 213b of the arm portion 21b has an assembly hole 2131b, and the coupling portion 223b of the arm portion 22b can be movably inserted into the assembly hole 2131b of the arm portion 21b. In this embodiment, the pivot axis P1 of the pivot portion 211b and the pivot axis P2 of the pivot portion 221b form an obtuse angle θ, so that the two connecting portions 212b and 222b can be mutually pivoted during the pivoting of the integral rocker arm 20b. Close or stay away. The connecting portion 212b has an adjusting long slot 2121b, the connecting portion 222b has an adjusting long slot 2221b, and the extending directions of the two adjusting long slots 2121b, 2221b are perpendicular to the pivot axes P1, P2 of the two pivoting portions 211b, 221b, respectively.

The two brake pads 30b are respectively disposed at the two connecting portions 212b and 222b. In this embodiment, the two brake pads 30b have the same structure, and the two brake pads 30b are arranged on the two connecting portions 212b and 222b in the same manner. Therefore, only the configuration of one of the brake pads 30b on the connecting portion 212b will be described in detail below. The brake pad 30 is disposed in the long adjusting slot 2121b of the connecting portion 212b, and is located between the coupling portion 213b and the pivoting portion 211b. Furthermore, the brake pad 30b includes a wear portion 31b and a coupling column portion 32b that are connected, and the bicycle brake assembly 1b further includes a collar 60b and a coupling member 70b. The collar 60b is sleeved on the coupling column portion 32b of the brake pad 30b. The coupling column portion 32b passes through the long adjusting groove 2121b of the connecting portion 212b, and the wear portion 31b of the brake pad 30b and the collar 60b are located between the two connecting portions 212b, 222b, and the collar 60b is closer to the coupling column portion than the wear portion 31b The connecting portion 212b penetrated by 32b. The coupling column portion 32b has, for example, an external thread 321b, and the coupling member 70b has, for example, an internal thread 71b. The internal thread 71b of the coupling member 70b is coupled with the external thread 321b of the coupling column portion 32b, and the connecting portion 212b is sandwiched between the collar 60b and the coupling member 70b. In this embodiment, the wear part 31b of the two brake pads 30b is used to clamp the rim 3 of the wheel 2.

In this embodiment, the connecting portions 212b, 222b are provided with the adjustment slots 2121b, 2221b, so that the distance between the two brake pads 30b and the pivot axes P1, P2 of the two pivoting portions 211b, 221b can be adjusted. Adjust according to the type of wheel 2. In detail, if the wheel is a mountain bike wheel, because the wheel diameter of the wheel is small, the brake pads 30b need to be arranged in the adjustment slots 2121b, 2221b, respectively, which are closer to the pivot axis P1 of the pivoting portions 211b, 221b. The position of P2 is such that the brake pad 30b can be clamped to the rim of the wheel. On the other hand, if the wheel is a road vehicle wheel, the brake pads 30b need to be arranged in the adjustment slots 2121b, 2221b farther away from the pivot axes P1, P2 of the pivot joints 211b, 221b due to the larger diameter of the wheel. s position.

In this embodiment, the fork tube 10b further has a perforation 12b, and the drive cable 40b passes through the perforation 12b of the fork tube 10b. One end of the drive cable 40b is fixed to the joint portion 213b of the rocker arm 20b, and the other end of the drive cable 40b is connected to the brake handle (not shown) of the bicycle. The elastic member 50b is, for example, a spring. The elastic member 50b is sleeved on the driving cable 40b, one end of the elastic member 50b is connected to the coupling portion 213b, and the other end of the elastic member 50b is fixed to the fork tube 10b. The elastic member 50b is used for applying force to the joint 213b to move away from the fork tube 10b.

In this embodiment, the rocker arm 20b can pivot between a release position and a braking position. As shown in Figures 9 and 10, when the rocker arm 20b is in the release position, the wear part 31b of the two brake pads 30b is closer to the second pivot part 111b of the fork tube 10b than the wheel frame 3 of the wheel 2, and is connected to the wheel of the wheel 2 The frame 3 maintains a distance, and the wear parts 31b of the two brake pads 30b are separated by a first minimum distance D1. At this time, the wheels 2 are in a state where they are not braked.

When the brake handle is pressed, the brake handle pulls the drive cable 40b, and drives the rocker arm 20b to move toward the braking position and compress the elastic member 50b. During the movement of the rocker arm 20b, the wear portion 31b of the second brake pad 30b gradually approaches the rim 3 of the wheel 2, and the two connecting portions 212b, 222b gradually approach each other, so that the distance between the wear portion 31b of the second brake pad 30b Gradually shortened. Next, please refer to Figure 11 and Figure 12. Fig. 11 is a schematic side view of the rocker arm of Fig. 9 in a braking position. Figure 12 is a schematic cross-sectional view of the rocker arm of Figure 10 in a braking position. When the rocker arm 20b is in the braking position, the wear parts 31b of the two brake pads 30b are separated by a second minimum distance D2 that is less than the first minimum distance D1, and the rim 3 of the wheel 2 will be located on the wear part of the second brake pads 30b Between 31b and clamped by the wear part 31b of the two brake pads 30b, the wheel 2 is braked.

When the brake handle is released, the drive cable 40b is no longer affected by the brake handle. At this time, the elastic force of the compressed elastic member 50b is released, and the rocker arm 20b is moved from the braking position to the releasing position. In this way, the rotation of the wheel 2 is not hindered.

In this embodiment, as shown in FIGS. 11 and 12, the two arm portions 21b, 22b of the rocker arm 20b are pivoted on the fork tube 10b, and the pivot axis P1 of the two arm portions 21b, 22b of the rocker arm 20 , P2 is set at an obtuse angle θ (as shown in Figure 10), so that the bicycle brake assembly 1b becomes a rocker arm brake configuration, and in the rocker arm brake configuration, the drive cable 40b drives the integral rocker arm 20b to pivot. The force arm A3 formed is larger than the resistance arm A4 formed by the two brake pads 30b clamping the wheel 2, so that the user can save effort in the process of pressing the brake handle to brake the wheel 2.

In this embodiment, one end of the drive cable 40b is not limited to the joint portion 213b fixed to the rocker arm 20b. In other embodiments, one end of the drive cable may be fixed to the joint portion 223b of the rocker arm 20b. In addition, one end of the elastic member 50b is not limited to be connected to the coupling portion 213b. In other embodiments, one end of the elastic member may be connected to the coupling portion 223b.

In this embodiment, the driving cable 40b and the elastic member 50b are connected to the coupling portion 213b, but it is not limited thereto. In other embodiments, the driving cable and the elastic member may be connected to the coupling portion 223b.

In the above embodiment, the bicycle brake assembly includes the arrangement of the fork tube, which is not intended to limit the present invention. In other embodiments, the bicycle brake assembly may have no fork tube.

According to the bicycle brake assembly of the above-mentioned embodiment, by pivoting the rocker arm to the fork tube, the pivot axis of the rocker arm is parallel to the center line of the two pivotal joints. During the pivoting of the rocker arm relative to the fork tube, one of the two brake plates The distance remains the same, or the pivot axis of the two arms of the rocker arm is set at an obtuse angle, so that the bicycle brake assembly becomes a rocker type brake configuration, and the user can save effort in the process of braking the wheel.

Although the present invention is disclosed in the foregoing embodiments as described above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for inventions shall be determined by the scope of patent applications attached to this specification.

1, 1a, 1b: bicycle brake components 2: wheel 3: Wheel frame 10, 10a, 10b: fork tube 11, 11b: pipe department 12, 12b: perforation 111, 111b: pivot part 20, 20b: rocker arm 21, 21b, 22b: arm 211, 211b, 221b: pivot part 212, 212b, 222b: connecting part 2121, 2121b, 2221b: Adjust the long groove 213, 213b, 223b: joint 2131b: Assembly hole 30, 30b: Brake pads 31, 31b: Wear part 32, 32b: Combined column 321, 321b: external thread 40, 40b: drive cable 50, 50b: elastic parts 60, 60b: collar 70, 70b: Combination 71, 71b: internal thread C: Centerline P, P1, P2: axis T: distance W: width A1, A3: force arm A2, A4: Resistance arm θ: Obtuse angle D1: The first minimum distance D2: Second smallest distance

Fig. 1 is a perspective view of a bicycle brake assembly and wheels according to a first embodiment of the present invention. Figure 2 is an exploded schematic diagram of Figure 1. Fig. 3 is a schematic side view of Fig. 1. Fig. 4 is a schematic cross-sectional view of Fig. 1. Figure 5 is a schematic side view of the rocker arm of Figure 3 in a braking position. Fig. 6 is a schematic cross-sectional view of the rocker arm of Fig. 4 in a braking position. Fig. 7 is a perspective view of a bicycle brake assembly and wheels according to a second embodiment of the present invention. Fig. 8 is an exploded schematic view of a bicycle brake assembly and wheels according to a third embodiment of the present invention. Fig. 9 is a schematic side view of the bicycle brake assembly and wheels of Fig. 8. 10 is a schematic cross-sectional view of the bicycle brake assembly and wheels of FIG. 8. Fig. 11 is a schematic side view of the rocker arm of Fig. 9 in a braking position. Figure 12 is a schematic cross-sectional view of the rocker arm of Figure 10 in a braking position.

1: Bicycle brake components

2: wheel

3: Wheel frame

10: Fork tube

11: Management Department

111: Pivot

20: rocker

30: Brake pads

40: drive cable

50: elastic parts

C: Centerline

P: axis

Claims (24)

A bicycle brake assembly suitable for a wheel, comprising: a fork tube having two opposite pivoting parts, the wheel is used to be arranged on the two pivoting parts of the fork tube, and the two pivoting parts of the fork tube The center line of the part rotates relative to the fork tube; a rocker arm is pivoted on the fork tube, and the pivot axis of the rocker arm is used to be parallel to the center line of the two pivot parts; and at least one brake plate is arranged on the The rocker arm is used to contact the wheel. For example, the bicycle brake assembly described in claim 1 further includes a drive cable, the rocker arm includes at least one pivotal portion, at least one connecting portion, and at least one coupling portion, and the at least one pivotal connection of the rocker arm The at least one connecting portion is connected to the at least one connecting portion through the at least one connecting portion, the at least one pivoting portion of the rocker arm is pivoted to the fork tube, and the at least one brake disc is disposed on the at least one connecting portion and located on the rocker arm Between the at least one pivoting portion and the at least one coupling portion, the drive cable is connected to the at least one coupling portion. For example, the bicycle brake assembly described in item 2 of the scope of patent application further includes an elastic member. The opposite ends of the elastic member are respectively connected to the fork tube and the joint portion, and the elastic member is used to apply the at least one joint portion toward the The force moving away from the fork tube. The bicycle brake assembly described in item 3 of the scope of patent application, wherein the elastic member is sleeved on the drive cable. According to the bicycle brake assembly described in item 2 of the scope of patent application, the fork tube further has a perforation, and the drive cable passes through the perforation of the fork tube. The bicycle brake assembly described in item 2 of the scope of patent application, wherein the at least one connecting portion of the rocker arm has an adjustment slot, and the extension direction of the adjustment slot is perpendicular to the rocker The pivot axis of the arm, the at least one brake plate is movably arranged in the adjusting slot of the at least one connecting portion, and the distance between the at least one brake plate and the pivot axis of the rocker arm can be adjusted. For the bicycle brake assembly described in item 1 of the scope of patent application, the number of the at least one brake pad is two, and the two brake pads are respectively arranged on two opposite sides of the rocker arm and used to contact the wheel, and when the rocking When the arm pivots relative to the fork tube, the distance between the two brake pads remains unchanged. The bicycle brake assembly described in item 1 of the scope of patent application, wherein the fork tube is a front fork tube or a rear fork tube of a bicycle. A bicycle brake assembly suitable for a wheel, comprising: a fork tube having two opposite pivoting parts, the wheel is used to be arranged on the two pivoting parts of the fork tube, and the two pivoting parts of the fork tube The center line of the part rotates relative to the fork tube; a rocker arm is pivoted to the fork tube; and two brake plates are respectively arranged on two opposite sides of the rocker arm and used to contact the wheel, and when the rocker arm is opposite to the When the fork pipe pivots, the distance between the two brake pads remains unchanged. For example, the bicycle brake assembly described in item 9 of the scope of patent application further includes a drive cable. The rocker arm includes two pivotal parts, two connecting parts and two coupling parts. The pivotal part of each rocker arm passes through the The connecting portion is connected to the connecting portion, the two pivoting portions of the rocker arm are pivoted on two opposite sides of the fork tube, the two brake plates are respectively disposed on the two connecting portions, and the drive cable is connected to the two connecting portions unit. For example, the bicycle brake assembly described in item 10 of the scope of patent application further includes an elastic member. The opposite ends of the elastic member are respectively connected to the fork tube and the two joint parts, and the elastic member is used to apply the two joint parts toward the The force moving away from the fork tube. The bicycle brake assembly described in item 11 of the scope of patent application, wherein the elastic member is sleeved on the drive cable. According to the bicycle brake assembly described in item 10 of the scope of patent application, the fork tube further has a perforation, and the drive cable passes through the perforation of the fork tube. For the bicycle brake assembly described in item 10 of the scope of patent application, each of the two connecting parts has an adjusting slot, the extension direction of the two adjusting slots is perpendicular to the pivot axis of the rocker arm, and the two brake pads can be respectively The distance between the two brake plates and the pivot axis of the rocker arm can be adjusted movably. The bicycle brake assembly described in item 9 of the scope of patent application, wherein the fork tube is a front fork tube or a rear fork tube of a bicycle. A bicycle brake assembly suitable for a wheel, comprising: a fork tube with two opposite pivot parts, the wheel is used to be arranged on the two pivot parts of the fork tube; a rocker arm including two arm parts, the Two arm parts are pivoted on two opposite sides of the fork tube, and the pivot axis of the two arm parts has an obtuse angle; and two brake plates are respectively provided on the two arms; wherein the rocker arm can be released Position and a braking position. When the rocker arm is in the release position, the two brake pads are separated by a first minimum distance. When the rocker arm is in the braking position, the two brake pads are separated A second minimum distance smaller than the first minimum distance. For example, the bicycle brake assembly described in item 16 of the scope of patent application further includes a drive cable. The two arm portions each include a pivoting portion, a connecting portion and a coupling portion. Each arm The pivotal portion of the arm portion is connected to the coupling portion through the connecting portion, the two pivotal portions of the two arm portions are respectively pivoted on two opposite sides of the fork tube, and the coupling portion of one of the arm portions is movable The coupling part coupled to the other arm part, the two brake plates are respectively disposed on the two coupling parts, and the driving cable is connected to one of the coupling parts. For example, the bicycle brake assembly described in item 17 of the scope of patent application further includes an elastic member. The opposite ends of the elastic member are respectively connected to one of the coupling part and the fork tube, and the elastic member is used to apply the rocker arm The force to move from the brake position to the release position. The bicycle brake assembly described in item 18 of the scope of patent application, wherein the elastic member is sleeved on the drive cable. For the bicycle brake assembly described in item 17 of the scope of patent application, the fork tube further has a perforation, and the driving cable passes through the perforation of the fork tube. For the bicycle brake assembly described in item 17 of the scope of patent application, each of the two connecting parts has an adjusting slot, the extension direction of the two adjusting slots is perpendicular to the pivot axis of the two arm parts, the two brake pads They are respectively movably arranged in the two adjusting long grooves, and the distance between the two brake plates and the pivot axis of the two arm parts can be adjusted respectively. The bicycle brake assembly described in item 16 of the scope of patent application, wherein the fork tube is a front fork tube or a rear fork tube of a bicycle. A bicycle brake assembly adapted to be pivoted on a wheel of a fork tube, comprising: a rocker arm for pivoting on the fork tube, and a pivot axis of the rocker arm to be parallel to the rotation axis of the wheel; And at least one brake plate is arranged on the rocker arm and used for contacting the wheel. A bicycle brake assembly, suitable for pivoting on a wheel of a fork tube, includes: a rocker arm including two arm parts, each arm part includes a pivot part, a connecting part and a joining part, each The pivot part of the arm is connected to the joint part through the joint part, the two joint parts are combined, and the two pivot parts are respectively used to pivot on two opposite sides of the fork tube, so that the rocker arm can be moved along Swing in a direction opposite to the direction of rotation of the wheel; and two brake plates are respectively arranged on the two connecting parts, and are respectively located between the pivot part and the connecting part of one of the arm parts.

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