TWI836634B - Bicycle brake lever - Google Patents

Abstract

A bicycle brake lever includes a main body, a lever, a movable component, a switch assembly and a position adjustment component. The main body includes a tank, a piston and a link. The piston is movably located in the tank, and an end of the link is connected to the piston. The lever is pivotally disposed on the tank and connected to another end of the link. The movable component is connected to the link. The switch assembly includes a switch, the switch is movably disposed on the tank and corresponds to the movable component. The lever is configured to move the movable component via the link for activating the switch. The position adjustment component is configured to move the switch relative to the tank so as to adjust a position of the switch relative to the movable component.

Description

bicycle brake handle

The present invention relates to a brake handle, in particular to a bicycle brake handle.

The bicycle market has been booming in recent years. Whether it is high-end racing bicycles or mass-market bicycles used as a means of transportation and leisure, they are all popular among consumers. This has prompted manufacturers to pay more attention to users' demands for bicycle functions and continuously improve and enhance the body materials and equipment functions.

Currently, bicycle manufacturers usually install a switch on the brake handlebar, so that when the brake handlebar lever is operated, the switch is triggered to control bicycle devices, such as lighting the brake lights or disabling the motor that outputs the power for the bicycle to move forward. However, the position of the switch cannot be adjusted, so the stroke of the operating lever to trigger the switch cannot be adjusted according to the user's habits. Therefore, current bicycle developers are working hard to solve the above-mentioned problem.

The present invention provides a bicycle brake handle, which allows the stroke of operating the pull rod trigger switch to be adjusted according to the user's habits.

An embodiment of the present invention discloses a bicycle brake handle, which includes a body, a brake lever, a linkage component, a switch component and a position adjustment component. The body includes a cylinder, a piston and a connecting rod. The piston is movably located in the cylinder, and one end of the connecting rod is connected to the piston. The brake lever is pivoted on the cylinder and connected to the other end of the connecting rod. The linkage is connected to the connecting rod. The switch assembly includes a switch, which is movably disposed on the cylinder and corresponds to the linkage member. The brake lever is used to drive the linkage through the connecting rod to trigger the switch. The position adjusting member is used to drive the switch to move relative to the cylinder, and to adjust the position of the switch relative to the linking member.

Another embodiment of the present invention discloses a bicycle brake handle, including a body, a brake lever, a linkage member and a switch assembly. The body includes a cylinder, a piston and a connecting rod. The piston is movably located in the cylinder, and one end of the connecting rod is connected to the piston. The brake lever is pivoted on the cylinder and connected to the other end of the connecting rod. The linking part includes a pivot part, a connection part and a trigger part. The connection part and the trigger part are respectively connected to different sides of the pivot part. The pivot part is pivoted on the cylinder body, and the connection part is connected to the connecting rod. The switch assembly is arranged on the cylinder body and corresponds to the triggering part of the linkage member. The brake lever is used to drive the linkage member to pivot through the connecting rod, so that the triggering part of the linkage member triggers the switch assembly.

Another embodiment of the present invention discloses a bicycle brake handle, which includes a body, a brake lever, a grip adjustment member, a linkage and a switch assembly. The body includes a cylinder, a piston and a connecting rod. The piston is movably disposed in the cylinder, and one end of the connecting rod is connected to the piston. The brake lever is pivoted on the cylinder. The grip adjustment member is rotatably disposed on the brake lever and connected to the other end of the connecting rod. The grip adjustment member is used to adjust an initial position of the brake lever. The linkage is connected to the connecting rod. The switch assembly is disposed on the cylinder and corresponds to the linkage. The brake lever is used to drive the linkage through the grip adjustment member and the connecting rod, so that the linkage triggers the switch assembly.

Yet another embodiment of the present invention discloses a bicycle brake handle, including a body, a brake lever, a trigger and a switch assembly. The body includes a cylinder, a piston and a connecting rod. The piston is movably located in the cylinder, and one end of the connecting rod is connected to the piston. The brake lever is pivoted on the cylinder body. The other end of the connecting rod is pivoted to the brake lever through a trigger piece, and the trigger piece has a trigger portion. The switch component is arranged on the brake lever and corresponds to the triggering part of the triggering member. The connecting rod is used to drive the trigger member to pivot during the operation of the brake lever, so that the trigger part of the trigger member triggers the switch assembly.

According to the bicycle brake handle disclosed in the above embodiment, the switch is movably arranged on the cylinder and corresponds to the linkage member, and the position adjustment member is used to drive the switch to move relative to the cylinder, allowing the user to operate the position adjustment member Adjust the position of the switch relative to the linkage to allow the stroke of the brake lever to trigger the switch to meet the user's habits.

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

Please refer to Figures 1 to 3. Figure 1 is a three-dimensional schematic diagram of a bicycle brake handle disclosed according to the first embodiment of the present invention. Figure 2 is an exploded schematic diagram of Figure 1. Figure 3 is a cross-sectional schematic diagram of Figure 1.

In this embodiment, the bicycle brake handle 1 is installed on a handle 2 . The bicycle brake handle 1 includes a body 10 , a brake lever 20 , a linkage member 30 , a switch assembly 40 and a position adjustment member 50 . In addition, the bicycle brake handle 1 may also include a pivot 60 , a grip adjustment member 70 , a biasing member 90 and a fastener 100 .

The body 10 includes a cylinder 11 , a piston 12 and a connecting rod 13 . In addition, the body 10 may also include a blocking piece 14, a buckle 15, a biasing member 16 and a clamp 17.

The cylinder body 11 may have an oil storage chamber 111, a connecting hole 112, a pressurizing chamber 113 and an oil outlet hole 114. The oil storage chamber 111 is connected to the pressurizing chamber 113 through the connecting hole 112, and the oil outlet hole 114 is connected to the pressurizing chamber 113. The oil outlet hole 114 is used to be connected to a brake caliper (not shown) through an oil pipe (not shown). The piston 12 is movably positioned in the pressurizing chamber 113. The baffle 14 and the retaining ring 15 are installed at the opening 1131 of the pressurizing chamber 113, and the retaining ring 15 is farther from the piston 12 than the baffle 14. The baffle 14 may have a through hole 141. The connecting rod 13 may have a first spherical assembly portion 131 and a second spherical assembly portion 132 opposite to each other. The connecting rod 13 is inserted into the through hole 141 of the baffle 14, and the first spherical assembly portion 131 of the connecting rod 13 is located in the pressurizing chamber 113 and mounted on the piston 12. The outer diameter of the first spherical assembly portion 131 of the connecting rod 13 is larger than the hole diameter of the through hole 141 of the baffle 14, so that the baffle 14 can block the first spherical assembly portion 131 of the connecting rod 13 to prevent the first spherical assembly portion 131 of the connecting rod 13 from escaping from the pressurizing chamber 113. The biasing member 16 is, for example, a compression spring. The biasing member 16 is disposed in the pressurizing chamber 113, and two opposite ends of the biasing member 16 respectively abut against the groove bottom surface 1132 of the pressurizing chamber 113 that is opposite to the opening 1131. The biasing member 16 is used to apply a force to the piston 12 to move toward the opening 1131 of the pressurizing chamber 113, so that when no other force is applied to the piston 12, the first spherical assembly portion 131 of the connecting rod 13 abuts against the baffle 14. The clamp 17 includes, for example, a first clamp arm 171, a second clamp arm 172, and a locking member 173. The first clamp arm 171 is connected to the cylinder body 11 in an integral manner, for example. The second clamp arm 172 is pivoted on the first clamp arm 171 . The locking member 173 passes through the second clamp arm 172 and is locked to the first clamp arm 171 , so that the first clamp arm 171 and the second clamp arm 172 clamp the handlebar 2 together.

Next, please refer to FIG. 2 to FIG. 4 , FIG. 4 is a cross-sectional schematic diagram of FIG. 1 from another viewing angle.

The brake rod 20 is pivoted to the cylinder body 11 through the pivot 60. The brake rod 20 may have two assembly holes 21 and a through hole 22, and the two assembly holes 21 and the through hole 22 are respectively located on the opposite sides of the brake rod 20, wherein the two assembly holes 21 are opposite to each other. The grip adjustment member 70 includes an adjustment portion 71 and a transmission portion 72. The adjustment portion 71 is, for example, integrally connected to the second spherical assembly portion 132 of the connecting rod 13. The opposite ends of the transmission portion 72 are rotatably disposed in the two assembly holes 21 of the brake rod 20.

In this embodiment, the adjustment part 71 has an external thread structure 711 and a tool hole 712, and the transmission part 72 has a screw hole 721. The external thread structure 711 of the adjustment part 71 is screwed into the screw hole 721 of the transmission part 72. The through hole 22 of the brake lever 20 reveals the tool hole 712 of the adjustment part 71. The tool hole 712 of the adjustment part 71 is matched with an Allen wrench (not shown), for example. The tool hole 712 of the adjustment part 71 is used for inserting an Allen wrench, and can be driven by the Allen wrench to rotate relative to the transmission part 72, thereby adjusting the distance between the transmission part 72 and one end of the connecting rod 13 connected to the piston 12 (i.e., the first spherical assembly part 131), which will be described in detail later.

The linking member 30 includes a pivoting portion 31, a connecting portion 32 and a triggering portion 33. The pivoting portion 31 of the linking member 30 is also pivoted to the cylinder body 11 through the pivot 60. The connecting portion 32 and the triggering portion 33 are respectively connected to opposite sides of the pivoting portion 31. The connecting portion 32 has an assembly through groove 321. The second spherical assembly portion 132 of the connecting rod 13 is rotatably mounted on the assembly through groove 321 of the linking member 30. The biasing member 90 is, for example, a compression spring, and opposite ends of the biasing member 90 abut against the connecting portion 32 of the linking member 30 and the brake lever 20, respectively. The biasing member 90 is used to force the inner wall surface 322 of the assembly through groove 321 of the connecting portion 32 to press against the second spherical assembly portion 132 of the connecting rod 13, so as to position the connecting member 30 on the connecting rod 13 and eliminate the gap between the transmission portion 72 and the assembly hole 21 and the gap between the outer thread structure 711 of the adjustment portion 71 and the inner thread structure 722 in the screw hole 721 of the transmission portion 72.

It should be noted that the biasing member 90 is an optional component. If the inner wall surface 322 of the assembly through groove 321 of the connecting portion 32 has sufficient force against the second spherical assembly portion 132 of the connecting rod 13 , and there is no gap between the transmission portion 72 and the assembly hole 21 , and there is no gap outside the adjustment portion 71 There is no gap between the threaded structure 711 and the internal threaded structure 722 in the screw hole 721 of the transmission part 72, and the biasing member 90 can be omitted.

In this embodiment, the cylinder body 11 may further have a receiving groove 115 and a screw hole 116 connected to each other. The switch assembly 40 includes a switch 41. In addition, the switch assembly 40 may further include a housing 42, a switch seat 43, a pivot 44 and a biasing member 45.

The housing 42 is installed in the receiving groove 115 of the cylinder 11. The fastener 100 is, for example, a screw, which is screwed into the screw hole 116 of the cylinder 11 and presses the housing 42, so that the housing 42 is fixed to the receiving groove 115. It should be noted that the housing 42 of the switch assembly 40 is not limited to being fixed to the cylinder 11 by the fastener 100. In other embodiments, the switch assembly can be fixed to the cylinder by other methods (such as tightening or bonding).

The housing 42 of the switch assembly 40 has a screw hole 421. The switch seat 43 includes a pivot portion 431, a first abutting portion 432 and a second abutting portion 433. The pivot portion 431 of the switch seat 43 is pivoted to the housing 42 through a pivot shaft 44. The first abutting portion 432 and the second abutting portion 433 protrude from opposite sides of the pivot portion 431, and the first abutting portion 432 corresponds to the screw hole 421 of the housing 42. The biasing member 45 is, for example, a compression spring, and opposite ends of the biasing member 45 abut against the second abutting portion 433 and the housing 42, respectively. The position adjusting member 50 is, for example, a screw, which has, for example, a tool hole 51 matching a hexagonal wrench. The position adjustment member 50 is screwed into the screw hole 421 of the housing 42 and abuts against the first abutting portion 432 of the switch base 43. The switch 41 is disposed on the surface of the second abutting portion 433 of the switch base 43 that is opposite to the biasing member 45 and corresponds to the triggering portion 33 of the linkage member 30. The biasing member 45 is used to apply a force to the switch base 43 to pivot in one direction, and to make the first abutting portion 432 of the switch base 43 abut against the position adjustment member 50 when no other external force acts on the switch base 43.

Next, please refer to FIG. 5 , which is a schematic cross-sectional view of the brake lever in FIG. 4 after being operated.

During the process of pressing the brake lever 20, the brake lever 20 drives the connecting rod 13 through the transmission part 72 and the adjusting part 71 of the grip adjustment member 70, so that the connecting rod 13 drives the piston 12 to move toward the oil outlet hole 114 to generate oil pressure. to actuate the brake calipers to brake the wheels. During the movement of the connecting rod 13 , the connecting rod 13 will also drive the linking member 30 to pivot, so that the triggering portion 33 of the linking member 30 triggers the switch 41 .

Next, please refer to Figure 6 and Figure 7. FIG. 6 is a schematic plan view of the bicycle brake handle and electronic control assembly of FIG. 1 . FIG. 7 is a block diagram of the switch and electronic control components of the bicycle brake handle shown in FIG. 6 .

In this embodiment, the switch 41 is, for example, matched with an electric control assembly 3. The electric control assembly 3 includes, for example, a housing 200, a circuit board 300, a microcontroller 400, a wireless communicator 500, a connector 600, a motion sensor 700, and a power supply 800. The housing 200 is disposed in the cylinder 11, the circuit board 300 is disposed in the housing 200, and the microcontroller 400, the wireless communicator 500, the connector 600, the motion sensor 700, and the power supply 800 are, for example, all disposed on the same surface of the circuit board 300. The microcontroller 400 has a processing unit 410, a memory unit 420, and a display unit 430. The memory unit 420 and the display unit 430 are electrically connected to the processing unit 410. The switch 41, the wireless communicator 500, the connector 600, the motion sensor 700 and the power supply 800 are all electrically connected to the processing unit 410.

In this embodiment, the wireless communicator 500 performs wireless communication with a central control system (not shown) of the bicycle, for example. For example, the bicycle is an electric-assisted bicycle, and the central control system controls a motor (not shown) that provides forward power. After the switch 41 is triggered by the trigger part 33 of the linkage 30, the switch 41 will send a signal to the processing unit 410 of the microcontroller 400, and then the processing unit 410 of the microcontroller 400 will cause the wireless communicator 500 to send a signal to the central control unit of the bicycle. system, causing the central control system to fail the motor. In this way, when the brake lever 20 is pressed to actuate the brake caliper to brake the wheel, the motor will not continue to output power, so the braking effect can be avoided.

In this embodiment, the central control system of the bicycle controls not only the motor but also the transmission (not shown). The connector 600 is used to electrically connect to an expansion switch 4 through a cable (not shown), and the expansion switch 4 is, for example, a shift switch for controlling the transmission shift, and is, for example, disposed on the first clamping arm 171 of the clamp 17. When the expansion switch 4 is triggered, the expansion switch 4 transmits a shift signal to the processing unit 410 of the microcontroller 400, and then the processing unit 410 of the microcontroller 400 instructs the wireless communicator 500 to send the shift signal to the central control system, and then the central control system instructs the transmission to shift.

It should be noted that the processing unit 410 of the microcontroller 400 is not limited to causing the wireless communicator 500 to send a shift signal to the central control system, and then the central control system causes the transmission to shift. In other embodiments, the microcontroller can cause the wireless communicator to directly send a shift signal to the transmission to allow the transmission to shift.

In addition, the connector 600 is not limited to being electrically connected to the expansion switch 4. In other embodiments, the connector can be electrically connected to an external power source or an electronic device (such as a turn signal, an electric dropper seat post, or an electronically controlled shock absorber).

In this embodiment, the motion sensor 700 is, for example, an acceleration sensor (G-sensor), and the motion sensor 700 is used to sense whether the bicycle is moving. The display unit 430 is, for example, an LED lamp. When the motion sensor 700 senses that the bicycle is moving, the processing unit 410 causes the display unit 430 to light up to indicate that the electronic control component 3 is currently in an awakened state. When the motion sensor 700 senses that the bicycle is not moving, the processing unit 410 turns off the display unit 430 to indicate that the electronic control component 3 is currently in a dormant power-saving state.

Next, please refer to FIG. 8 , which is a schematic cross-sectional view of the brake lever in FIG. 4 after its position has been adjusted.

In this embodiment, the grip adjustment member 70 can adjust the initial position of the brake lever 20 before it is pressed. Specifically, the hexagonal wrench can be inserted into the tool hole 712 of the adjustment part 71, and then the hexagonal wrench can be rotated, and with the cooperation of the external thread structure 711 of the adjustment part 71 and the internal thread structure 722 of the screw hole 721 of the transmission part 72 , so that the distance between the transmission part 72 and the first spherical assembly part 131 of the connecting rod 13 gradually decreases, thereby causing the end of the brake lever 20 away from the cylinder 11 to gradually approach the handlebar 2 along the direction D1.

On the contrary, by rotating the hexagonal wrench in the opposite direction, the distance between the transmission portion 72 and the first spherical assembly portion 131 of the connecting rod 13 can be gradually increased, thereby making the end of the brake rod 20 away from the cylinder body 11 gradually away from the handlebar 2 in the opposite direction of the direction D1.

In this way, through the combination of the adjustment part 71 and the transmission part 72 of the grip adjustment member 70, the initial position of the brake lever 20 before being pressed can be adjusted to meet the habits of different users.

In this embodiment, since the baffle 14 blocks the first spherical connecting portion 131 of the connecting rod 13, when the adjusting portion 71 of the grip adjustment member 70 is rotated, the adjusting portion 71 and the adjusting portion 71 are integrally connected to each other. The connecting rod 13 can only rotate and not translate along the axial direction. Therefore, even if the second spherical assembly portion 132 of the connecting rod 13 is installed in the assembly through groove 321 of the connecting portion 32 of the linking member 30 , the connecting rod 13 will not move along the direction relative to the connecting portion 32 of the linking member 30 during the rotation. Axial translation will not drive the linkage 30 to pivot. Therefore, the rotation of the connecting rod 13 will not cause the position of the triggering portion 33 of the linking member 30 to change relative to the switch 41, but can maintain the stroke of the triggering portion 33 of the linking member 30 to trigger the switch 41.

It should be noted that the adjustment portion 71 of the grip distance adjustment member 70 is not limited to being integrally formed and connected to the connecting rod 13 . In other embodiments, the grip adjustment member may be fixed to the connecting rod by snapping or welding.

In addition, the through hole 22 of the brake lever 20 exposing the tool hole 712 of the adjustment portion 71 is an optional structure. In other embodiments, the brake lever may have no holes and the adjustment part may have no tool holes. Under such a configuration, a structure matching the open-end wrench can be formed on the connecting rod, so that the open-end wrench can directly rotate the connecting rod and drive the adjustment portion of the grip distance adjustment member.

It should be noted that the assembly structure between the connecting rod 13 and the connecting portion 32 of the linking member 30 is not intended to limit the present invention. As long as the connecting rod is assembled at the connecting part of the linking part and can drive the linking part to pivot and rotate relative to the linking part, the assembly structure between the connecting rod and the connecting part of the linking part can be any suitable structure.

It should be noted that the grip adjustment member 70 is an optional component. If there is no need to adjust the initial position of the brake lever 20, the grip adjustment member 70 can be omitted.

Next, please refer to FIG. 9 , which is a schematic cross-sectional view of the switch in FIG. 4 after its position has been adjusted.

In this embodiment, the position adjustment member 50 can adjust the position of the switch 41 relative to the trigger portion 33 of the linkage member 30 . Specifically, an Allen wrench can be inserted into the tool hole 51 of the position adjustment member 50 , and then the Allen wrench can be rotated so that the position adjustment member 50 goes deeper into the screw hole 421 , and the first resisting portion 432 of the switch base 43 is pushed in the direction D2 pivots to move the switch 41 away from the triggering portion 33 of the linkage 30 . As a result, the brake lever 20 needs to be pressed for more strokes before the switch 41 can be triggered through the trigger portion 33 of the linkage 30 .

On the contrary, by rotating the hexagonal wrench in the opposite direction, the position adjustment member 50 moves away from the first abutment portion 432 of the switch seat 43, and the biasing member 45 pushes the second abutment portion 433 of the switch seat 43 to pivot in the opposite direction of the direction D2, so that the switch 41 is close to the trigger portion 33 of the linkage member 30. In this way, the stroke of pressing the brake lever 20 to trigger the switch 41 can be reduced.

In this embodiment, the switch 41 is movably arranged on the cylinder body 11 via the housing 42 and the pivotable switch seat 43, and the position adjustment member 50 is used to drive the switch seat 43 and the switch 41 thereon to move relative to the cylinder body 11. The user can adjust the position of the switch 41 relative to the linkage 30 by operating the position adjustment member 50 to allow the stroke of operating the brake rod 20 to trigger the switch 41 to meet the user's habits.

It should be noted that the housing 42 and the switch base 43 of the switch assembly 40 are optional components. In other embodiments, the switch assembly can be without a housing and a switch base, and the switch can be directly pivoted on the cylinder body and can be relatively movable relative to the cylinder body.

In addition, the structure of the linkage 30 is not intended to limit the present invention. As long as the linkage can be driven by the connecting rod and trigger the switch when the brake lever drives the connecting rod, the linkage can be of any suitable structural style.

Next, please refer to FIG. 10 , which is a schematic side view of a bicycle brake handle and an electronic control assembly according to a second embodiment of the present invention.

The bicycle brake handle 1 of this embodiment is the same as the bicycle brake handle 1 described above with reference to Figures 1 to 4. Therefore, the bicycle brake handle 1 of this embodiment is the same as the bicycle brake handle 1 described above with reference to Figures 1 to 4. 1 uses the same component symbol. The electronic control component 3a matched with the switch 41 in this embodiment is similar to the electronic control component 3 described above with reference to Figures 6 and 7. The main differences between the two are microcontrollers, wireless communicators, connectors, and motion sensors. The settings of the controller and power supply are different, so the following mainly explains these differences.

In this embodiment, the electronic control component 3a also includes a housing 200a, a circuit board 300a, a microcontroller 400a, a wireless communicator 500a, a connector 600a, a motion sensor 700a and a power supply 800a. The housing 200a is disposed on the cylinder 11, and the circuit board 300a is located in the housing 200a. The circuit board 300a has an upper surface 310a and a lower surface 320a. The upper surface 310a is further away from the cylinder 11 than the lower surface 320a. The microcontroller 400a and the motion sensor 700a are disposed on the lower surface 320a of the circuit board 300a, and the wireless communicator 500a, the connector 600a and the power supply 800a are disposed on the upper surface 310a of the circuit board 300a.

Next, please refer to Figure 11 to Figure 13. Figure 11 is a schematic three-dimensional view of a bicycle brake handle according to the third embodiment of the present invention. FIG. 12 is an exploded schematic diagram of FIG. 11 . FIG. 13 is a schematic cross-sectional view of FIG. 11 .

In this embodiment, the bicycle brake handle 1b includes a body 10b, a brake lever 20b, a trigger 30b and a switch assembly 40b. In addition, the bicycle brake handle 1b may also include a pivot 50b.

The body 10b includes a cylinder 11b, a piston 12b and a connecting rod 13b. In addition, the body 10b may also include a blocking piece 14b, a buckle 15b and a biasing member 16b.

The cylinder 11b may have an oil storage chamber 111b, a communication hole 112b, a pressurizing chamber 113b and an oil outlet hole 114b. The oil storage chamber 111b is connected to the pressurizing chamber 113b through the communication hole 112b, and the oil outlet hole 114b is connected to the pressurizing chamber 113b. The oil outlet hole 114b is used to communicate with the brake caliper (not shown) through an oil pipe (not shown). Piston 12b is movably located within pressurization chamber 113b. The baffle 14b and the retaining ring 15b are installed at the opening 1131b of the pressurized chamber 113b, and the retaining ring 15b is further away from the piston 12b than the baffle 14b. The baffle 14b has a through hole 141b. The connecting rod 13b may have an opposite spherical connecting part 131b and a rod-shaped connecting part 132b. The connecting rod 13b passes through the through hole 141b of the baffle 14b, and the spherical connecting portion 131b of the connecting rod 13b is located in the pressurizing chamber 113b and installed on the piston 12b. The outer diameter of the spherical connecting portion 131b of the connecting rod 13b is larger than the hole diameter of the through hole 141b of the blocking piece 14b, so that the blocking piece 14b can block the spherical connecting portion 131b of the connecting rod 13b to prevent the spherical connecting portion of the connecting rod 13b from being connected. 131b is detached from the pressurized chamber 113b. The biasing member 16b is, for example, a compression spring. The biasing member 16b is disposed in the pressurizing chamber 113b, and the opposite ends of the biasing member 16b respectively abut against the groove bottom surface 1132b of the pressurizing chamber 113b relative to the opening 1131b. The biasing member 16b is used to impart force to the piston 12b to move toward the opening 1131b of the pressurizing chamber 113b.

The brake lever 20b is pivoted to the cylinder 11b through the pivot shaft 50b. The brake lever 20b may have a through hole 21b and two assembly holes 22b. The two assembly holes 22b are respectively located on opposite sides of the through hole 21b and are connected to the through hole 21b. The opposite ends of the trigger member 30b are rotatably provided in the two assembly holes 22b of the brake lever 20b.

In this embodiment, the rod-shaped assembly portion 132b of the connecting rod 13b has an external thread structure 1321b, and the trigger 30b may have a screw hole 31b. The external thread structure 1321b of the rod-shaped assembly portion 132b of the connecting rod 13b is screwed into the screw hole 31b of the trigger 30b, so that one end of the connecting rod 13b is pivoted on the brake rod 20b through the trigger 30b.

In this embodiment, the triggering member 30b also has a triggering part 32b, and the triggering part 32b is a cam structure. The switch assembly 40b is disposed in the through hole 21b of the brake lever 20b and corresponds to the trigger portion 32b of the trigger member 30b.

Next, please refer to FIG. 14 , which is a cross-sectional view of the brake lever of FIG. 13 after being operated.

During the process of pressing the brake lever 20b, the brake lever 20b will drive the connecting rod 13b, so that the connecting rod 13b drives the piston 12b to move toward the oil outlet hole 114b to generate oil pressure to activate the brake caliper to brake the wheel. During the movement of the connecting rod 13b, the connecting rod 13b will also drive the triggering part 30b to rotate, so that the triggering part 32b of the triggering part 30b triggers the switch assembly 40b, and as described in the previous embodiment, the motor (not shown) that provides the forward power of the bicycle is (pictured) is invalid. In this way, when the brake lever 20 is pressed to actuate the brake caliper to brake the wheel, the motor will not continue to output power, so the braking effect can be avoided.

According to the bicycle brake handle disclosed in the above embodiment, the switch is movably arranged on the cylinder through the housing and the pivotable switch base, and the position adjustment member is used to drive the switch base and the switch on it relative to the cylinder. The movement allows the user to adjust the position of the switch relative to the linkage through the operating position adjustment member, so that the stroke of operating the brake lever trigger switch meets the user's habits.

In addition, by connecting the linkage to the connecting rod, the linkage can be driven by the connecting rod to trigger the switch while the brake rod drives the connecting rod and the piston to generate the oil pressure to actuate the brake caliper, so as to disable the motor that provides the power for the bicycle to move forward. Therefore, when the brake rod is pressed to actuate the brake caliper to brake the wheel, the motor will not continuously output power, so the braking effect can be avoided.

Furthermore, by driving the trigger member to pivot during the operation of the brake lever, the trigger member triggers the configuration of the switch assembly, which can, for example, disable the motor that provides the power for the bicycle to move forward. Therefore, during the process of pressing the brake lever to actuate the brake caliper to brake the wheel, the motor will not continue to output power, thereby avoiding affecting the braking effect.

On the other hand, through the combination of the adjustment part and the transmission part of the grip adjustment member, the initial position of the brake lever before it is pressed can be adjusted to suit the habits of different users.

Although the present invention has been disclosed in the foregoing preferred embodiments, they are not intended to limit the present invention. Anyone skilled in the similar art can make some modifications and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention is The scope of patent protection for an invention shall be determined by the scope of the patent application attached to this specification.

1,1b:Bicycle brake handle

2: Handlebars

3,3a:Electronic control components

4: Expansion switch

10,10b: Body

11,11b: Cylinder

111,111b: Oil storage chamber

112,112b: connecting hole

113,113b: Pressurization chamber

1131,1131b: Open

1132,1132b: Groove bottom

114,114b: Oil outlet

115: Accommodation tank

116:Screw hole

12,12b:piston

13,13b: connecting rod

131: First spherical assembly part

132: Second spherical assembly part

131b: Spherical assembly part

132b: Rod-shaped assembly part

1321b: External thread structure

14,14b: Baffle

141,141b: Perforation

15,15b: buckle

16,16b: Biasing element

17: Clamp

171:First clamping arm

172: Second clamp arm

173: Lock Firmware

20,20b:brake lever

21: Assembly hole

22:Perforation

21b:Through hole

22b: Assembly hole

30: Linking parts

31: Pivot joint

32: Connection

321: Assembly slot

322: Inner wall

33: Trigger

30b: Trigger

31b: screw hole

32b: Trigger part

40,40b: switch assembly

41: Switch

42: Shell

421: screw hole

43: Switch seat

431: Pivot joint

432:First contact part

433:Second abutment

44:Pivot

45: Biasing member

50: Position adjustment piece

51: Tool hole

50b: pivot

60:Pivot

70: Grip adjustment piece

71:Adjustment Department

711: External thread structure

712: Tool hole

72: Transmission

721:Screw hole

722: Internal thread structure

90: Bias piece

100: Fasteners

200,200a: Shell

300,300a: circuit board

310a: Upper surface

320a: lower surface

400,400a:Microcontroller

410: Processing unit

420: Memory unit

430:Display unit

500,500a: Wireless communicator

600,600a: Connector

700,700a: Motion sensor

800,800a: power supply

D1, D2: direction

FIG. 1 is a three-dimensional schematic diagram of a bicycle brake handle according to the first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1. FIG. 3 is a cross-sectional schematic diagram of FIG. 1. FIG. 4 is a cross-sectional schematic diagram of FIG. 1 from another viewing angle. FIG. 5 is a cross-sectional schematic diagram of the brake lever of FIG. 4 after being operated. FIG. 6 is a planar schematic diagram of the bicycle brake handle and the electronic control component of FIG. 1. FIG. 7 is a block schematic diagram of the switch and the electronic control component of the bicycle brake handle of FIG. 6. FIG. 8 is a cross-sectional schematic diagram of the brake lever of FIG. 4 after the position is adjusted. FIG. 9 is a cross-sectional schematic diagram of the switch of FIG. 4 after the position is adjusted. FIG. 10 is a side view schematic diagram of the bicycle brake handle and the electronic control component according to the second embodiment of the present invention. FIG. 11 is a three-dimensional schematic diagram of a bicycle brake handle disclosed in the third embodiment of the present invention. FIG. 12 is a decomposed schematic diagram of FIG. 11. FIG. 13 is a cross-sectional schematic diagram of FIG. 11. FIG. 14 is a cross-sectional schematic diagram of the brake lever of FIG. 13 after being operated.

2: Handlebars

11:Cylinder block

113: Pressurized chamber

1131: Open your mouth

1132: Groove bottom

114:Oil outlet

12: Piston

13: Connecting rod

131: First spherical joint

132: Second spherical joint

14: Baffle

15: Buckle

16: Biasing element

20: Brake lever

22:Perforation

31: Joint

32:Connection part

321: Assembly slot

33: Triggering Department

41: switch

42: Shell

421:Screw hole

431: Joint

432: First abutment part

433: Second abutment part

44:Pivot

45:Biasing parts

50:Position adjustment parts

51: Tool hole

60:Pivot

70: Grip adjustment piece

71:Adjustment Department

711: External thread structure

712:Tool hole

72: Transmission unit

721:Screw hole

722: Internal thread structure

90: Biasing element

Claims (10)

A bicycle brake handle comprises: a body, comprising a cylinder, a piston and a connecting rod, wherein the piston is movably disposed in the cylinder, and one end of the connecting rod is connected to the piston; a brake rod pivotally disposed in the cylinder and connected to the other end of the connecting rod; a connecting piece connected to the connecting rod; a switch assembly, comprising a switch, which is movably disposed in the cylinder and corresponds to the connecting piece, and the brake rod is used to drive the connecting piece through the connecting rod to thereby triggering the switch; and a position adjusting member, used to drive the switch to move relative to the cylinder, and adjust the position of the switch relative to the linkage; wherein the switch assembly comprises a housing and a switch seat, the housing is mounted on the cylinder, the switch seat is pivoted on the housing, the switch is fixed to the switch seat, the housing has a screw hole, the screw hole corresponds to the switch seat, the position adjusting member is a screw, the position adjusting member is screwed into the screw hole and abuts against the switch seat. The bicycle brake handle according to claim 1, wherein the switch base includes a pivot portion, a first abutment portion and a second abutment portion, and the pivot portion of the switch base is pivotally mounted on the housing. , the first resisting part and the second resisting part respectively protrude from different sides of the pivot part, the screw hole corresponds to the first resisting part, and the position adjustment member abuts on the first resisting part. The switch assembly further includes a biasing member, with opposite ends of the biasing member respectively abutting the second supporting portion and the housing. The bicycle brake handle as described in claim 1 further includes a fastener, the cylinder body has a receiving groove and a screw hole connected to each other, the housing is installed in the receiving groove, the fastener is a screw, the fastener is screwed into the screw hole and presses the housing to fix the housing in the receiving groove. The bicycle brake handle according to claim 1, wherein the linking member includes a pivot part, a connection part and a trigger part, the connection part and the trigger part are respectively connected to different sides of the pivot part, and the The pivot portion is pivoted on the cylinder, and the connecting portion is connected to the connecting rod. The brake lever is used to drive the linking member to pivot through the connecting rod, so that the triggering portion of the linking member triggers the switch assembly. The bicycle brake handle as described in claim 1 further comprises a grip adjustment member, which is rotatably disposed on the brake lever and connected to the other end of the connecting rod, and the grip adjustment member is used to adjust an initial position of the brake lever. The bicycle brake handle according to claim 5, wherein the grip adjustment member includes an adjustment part and a transmission part, the adjustment part is fixed on an end of the connecting rod away from the piston, and the transmission part is rotatably disposed on the Brake rod, the adjustment part has an external thread structure, the transmission part has a screw hole, the external thread structure of the adjustment part screws into the screw hole of the transmission part, the adjustment part can rotate relative to the transmission part, and adjust The distance between the transmission part and one end of the connecting rod connected to the piston. A bicycle brake handle as described in claim 6, wherein the connecting rod is mounted on the connecting member so as not to be axially translatable relative to the connecting member. The bicycle brake handle according to claim 7 further includes a biasing member, the linkage member has an assembly through groove, the connecting rod has a spherical assembly part, and the spherical assembly part is rotatably installed on the The biasing member is provided in the assembly through slot of the linking member, and the biasing member is used to force the inner wall surface of the assembly through slot to press the spherical assembly portion. The bicycle brake handle according to claim 6, wherein the adjusting part is integrally connected to the connecting rod. The bicycle brake handle according to claim 6, wherein the brake lever has a through hole, the adjustment part has a tool hole, and the through hole exposes the tool hole of the adjustment part.

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