TW201738140A - Hydraulic brake control device wherein a side thrust force is generated on a pressure cylinder to actuate a front wheel brake and a rear wheel brake in different timings - Google Patents

Abstract

A hydraulic brake control device mounted on a bicycle comprising a front wheel brake and a rear wheel brake; the hydraulic brake control device comprises a brake handle and at least one pressure cylinder; the brake handle is pivotally connected to the frame of the bicycle, and when the brake handle pivotally moves due to an external force, a side thrust force is generated on the at least one pressure cylinder to indirectly actuate the at least one pressure cylinder; the controlled at least one pressure cylinder will actuate the front wheel brake and the rear wheel brake to slow down the bicycle speed, wherein the timing for the actuation of the front wheel brake is later than the timing for the actuation of the rear wheel brake so as to improve the safety of the rider in riding the bicycle.

Description

Hydraulic brake control device

The invention relates to bicycles; in particular to a hydraulic brake control device for bicycle brakes.

According to the conventional brake control device for bicycles, the brake handles corresponding to the rear wheel brakes and the front wheel brakes are respectively mounted on the left and right side handshake bars on the front side of the bicycle. Therefore, when the rider wants to decelerate during the riding process, the rear wheel brake device and the front wheel brake device can be controlled by pressing the two brake handles, thereby driving the rear wheel brake device to inhibit the rear wheel rotation of the bicycle, and The front wheel brake is driven to suppress the front wheel rotation of the bicycle to slow down the speed of the bicycle and achieve the purpose of braking.

However, for a rider who is unfamiliar with the structural design of the bicycle, or who knows that the brake device corresponding to the second handlebar is a front or rear wheel rider, it is easy to confuse the correspondence between the handlebar and the braker during the ride, and When the rider faces a special environment, such as downhill, he should first pick up the rear wheel and then brake the front wheel to prevent the front wheel from being locked first by the brake, but it is not easy to cause the front wheel lock when the above action is implemented. Death caused the rollover. The reason for the blame is that the rider is not familiar with the configuration relationship between the handlebars and the brakes. Therefore, in the case of the handlebars on the left and right sides, it is easy to be confused, resulting in incorrect operation sequence, slipping lightly, and causing overturning. The safety of the rider.

Therefore, how to enable the public to safely and properly use the brake control device to control the bicycle to stop the accident in the process of riding the bicycle is one of the top topics in the industry today.

In view of the above, an object of the present invention is to provide a hydraulic brake control device that can synchronously control the operation of the rear wheel brake device and the front wheel brake device by pressing a single brake handle, and cause the rear wheel brake device to perform the brake action on the rear wheel. The timing is earlier than the timing of the front wheel brakes on the front wheels to improve the safety of the rider riding the bicycle.

In order to achieve the above object, the present invention provides a hydraulic brake control device mounted on a bicycle, the bicycle including a front wheel brake device and a rear wheel brake device; the hydraulic brake control device includes a brake handle and at least one a brake cylinder pivotally connected to the bicycle frame and pivoted by an external force; the at least one cylinder is driven by the brake handle to drive the front wheel brake and the rear wheel brake Actuation, wherein the timing of the front wheel brake performing the brake is after the rear wheel brake performs the brake.

The effect of the invention is to synchronously drive the front wheel brake device and the rear wheel brake device to be actuated by a single brake handle, and the rear wheel brake device can perform the braking action earlier than the front wheel brake device to improve the rider's operation. Safety during the brake process.

In order to explain the present invention more clearly, several preferred embodiments are described in detail with reference to the drawings. Referring to Fig. 1, there is shown a bicycle 1 using the hydraulic brake control device 100 of the first preferred embodiment of the present invention. The bicycle 1 includes a frame 2, a front wheel 3, a rear wheel 4, a front wheel brake 5 for suppressing the rotation of the front wheel 3, and a rear wheel brake 6 for suppressing the rotation of the rear wheel 4.

As shown in FIG. 2 and FIG. 3, the hydraulic brake control device 100 includes a brake handle 10, a control device 20, and at least one pressure cylinder controlled by the control device 20; the embodiment is implemented by two pressure cylinders. They are a first pressure cylinder 30 and a second pressure cylinder 40, respectively.

The brake handle 10 is pivotally connected to the front frame 2 of the bicycle 1, and is pivoted by an external force (ie, the force of the rider's hand). The control device 20 is located between the brake handle 10, the first cylinder 30 and the second cylinder 40, and the control device 20 includes a connecting rod 22 and a connecting member 24. The two ends of the connecting rod 22 are defined as an active end 221 and a pivoting end 222. The working end 221 of the connecting rod 22 abuts against the brake handle 10; the pivoting of the connecting rod 22 The end 222 is pivotally connected to the connecting member 24.

The first cylinder 30 includes a first oil groove 32 and a first piston rod 34. The first oil groove 32 is connected to the front wheel brake device 5 through a first pipe 7; one end of the first piston rod 34 is pivotally connected to the connecting member 24 of the control device 20, so that the first piston rod 34 is movably inserted into the first oil groove 32 by the control device 20 . When the first piston rod 34 moves toward the first pipe 7, the oil in the first oil groove 32 and the first pipe 7 will be forced to flow in the direction of the front wheel brake 5, thereby driving the front wheel brake device. 5 action.

The second cylinder 40 includes a second oil groove 42 and a second piston rod 44. The second oil groove 42 is connected to the rear wheel brake device 6 through a second pipe 8; one end of the second piston rod 44 is pivotally connected to the connecting member 24 of the control device 20, so that the second piston The rod 44 is movably inserted into the second oil groove 42 by the control device 20. When the second piston rod 44 moves toward the second pipe 8, the oil in the second oil groove 42 and the second pipe 8 will be forced to flow in the direction of the rear wheel brake 6, thereby driving the rear wheel. The brake device 6 is actuated. In addition, in the present embodiment, the volume of the second oil groove 42 of the second cylinder 40 is equal to the volume of the first oil groove 32 of the first pressure cylinder 30.

The pivoting end 222 of the connecting rod 22 is defined to be a first distance S1 from the pivoting point of the connecting member 24 and the first piston rod 34. The pivoting end 222 is connected to the connecting member 24 and the second piston. The pivot point of the rod 44 is a second distance S2. The first distance S1 is greater than the second distance S2, and the ratio between the first distance S1 and the second distance S2 is 6:4. In other embodiments, the ratio between the two may be changed based on the first distance being greater than the second distance, for example, 7:3 or 8:2.

As shown in FIG. 4, the structural design between the first piston rod 34, the second piston rod 44 and the control device 20 of the hydraulic brake control device 100, that is, the volume of the second oil groove 42 and the first The volume of the oil groove 32 is equal, and the ratio of the first distance S1 to the second distance S2 is 6:4. When the rider presses the brake handle 10, the brake handle 10 pivoted through the force The side thrust generated by the connecting rod 22 and the connecting member 24 will pass between the first piston rod 34 and the second piston rod 44, and the side thrust is biased against the second piston rod 44 to make the second The piston rod 44 is pushed by the side thrust earlier than the first piston rod 34, and the oil in the second oil groove 42 is driven to the rear wheel brake device 6 to start the rear wheel brake device 6 to perform the braking action. After the brake handle 10 is continuously pressed, the first piston rod 34 is pushed to cause the oil in the first oil groove 32 to flow to the front wheel brake 5, thereby driving the front wheel brake device 5 to perform the braking action. In other words, the front wheel brake device 5 of the present embodiment will perform the braking action on the front wheel 3 during the braking operation of the rear wheel brake 6 on the rear wheel 4, instead of completing the rear wheel brake device 6 The action of the front wheel brake device 5 is activated only after the brake action.

The focus of this embodiment is to ensure that the front wheel brake device 5 and the rear wheel brake device 6 are simultaneously actuated by pressing a single brake handle 10, and when the brake handle 10 is pressed to perform the braking operation, the same can be ensured. The rear wheel brake device 6 first performs a braking action on the rear wheel 4, and then starts the front wheel brake device 5 to perform a braking action on the front wheel 3. Therefore, the rider who improves the corresponding relationship between the handlebar and the brake device may cause the front wheel 2 tire to be locked due to the wrong pressing of the brake handle, thereby causing the bicycle to roll over, thereby effectively improving the bicycle use of the rider. Security.

Referring to FIG. 5, a hydraulic brake control device 200 according to a second preferred embodiment of the present invention has substantially the same structure as that of the first embodiment, except that the control device 50 of the present embodiment is configured to The connecting rod 52 is fixed to a central portion of a connecting member 54, and the connecting member 54 is fixed to the first piston rod 62 of the first pressure cylinder 61 and the second piston rod 64 of the second pressure cylinder 63. Further, the volume of the first oil groove 65 of the first pressure cylinder 61 of the present embodiment is smaller than the volume of the second oil groove 66 of the second pressure cylinder 63.

When the brake handle 10 is pivoted by an external force, the brake handle 10 pushes the link 52 and transmits the one side thrust to the first piston rod 62 and the second piston rod 64 simultaneously through the connecting member 54. The first piston rod 62 and the second piston rod 64 are synchronously moved. Since the moving strokes of the first piston rod 62 and the second piston rod 64 are the same, the volume of the first oil groove 65 is smaller than the volume of the second oil groove 66, and the first pipe 7 and the second pipe 8 are The pipe diameter is the same, so that the oil velocity in the second pipe 8 is faster than the oil velocity in the first pipe 7, so that the rear wheel brake 6 is started first, and the front wheel brake 5 is immediately adjacent to The rear wheel brake 6 is behind.

Therefore, when the rider performs the deceleration operation by the hydraulic brake control device 200 of the second preferred embodiment of the present invention, the timing of the rear brake device 6 to start the brake operation is also performed earlier than the front wheel brake device 5 The timing is to improve the safety of the rider in the same manner as the foregoing embodiment.

Referring to FIG. 6 and FIG. 7 , a hydraulic brake control device 300 according to a third preferred embodiment of the present invention has substantially the same structure as that of the first embodiment, and the control device 70 of the present embodiment is different. The pivoting end 721 of the connecting rod 72 is pivotally connected to the central portion of the connecting member 74. In addition, the volume of the first oil groove 82 in the first cylinder 81 of the embodiment is greater than the number in the second cylinder 83. The volume of the two oil grooves 84.

When the brake handle 10 is pivoted by an external force, the control device 70 is pivotally connected to the first piston rod 85 and the second piston rod 86, and the hydraulic pressure in the first oil groove 82 is greater than the second oil groove. The hydraulic pressure in 84 will cause the second piston rod 86 to be easily pushed by the control device 70 than the first piston rod 85, so that the second piston rod 86 moves first, and the first piston rod 85 is followed by Moving, the oil in the second oil groove 84 flows to the rear wheel brake device 6 earlier, and then the rear wheel brake device 6 is started to perform the braking action earlier. Thereafter, the first piston rod 85 that is pushed later will drive the front wheel brake device 5 to perform the braking action during the braking operation of the rear wheel brake device 6, achieving the same effect as the foregoing two embodiments.

In addition, as shown in FIG. 8, the hydraulic brake control device 400 according to the fourth preferred embodiment of the present invention is different from the foregoing three embodiments in that the structure of the control device is not provided in this embodiment. And implemented in a single cylinder.

The cylinder 90 includes a piston rod 91 and an oil groove 92. The piston rod 91 is disposed in the oil groove 92, and an end of the piston rod 91 that does not enter the oil groove 92 abuts against the brake handle 10. The brake handle 10, which is pivoted by force, will directly push the piston rod 91 to move and press the oil body in the oil groove 92.

The pressure cylinder 90 is provided with two openings communicating with the oil groove 92. The two openings respectively provide a first oil pipe 7' and a second oil pipe 8', and the oil groove 92 is transmitted through the first oil pipe 7' and the front wheel brake. The device 5 is connected to and communicates with the rear wheel brake device 6 through the second oil pipe 8'. The position of the two openings is any one of the cylinders of the pressure cylinder 90 that can be conveniently combined with processing and assembly. The position of the first oil pipe 7' is larger than the pipe diameter of the second oil pipe 8'.

In this embodiment, since the first oil pipe 7' and the second oil pipe 8' are connected to the same oil groove 92, when the piston rod 91 is forced to move and pushes the oil body of the oil groove 92, it is taken from the oil groove 92. The amount of oil pushed into the first oil pipe 7' and the second oil pipe 8' will be the same, and further, since the pipe diameter of the first oil pipe 7' is larger than the pipe diameter of the second oil pipe 8', The oil velocity in the first conduit 7 is slower than the oil velocity in the second conduit 8, and the effect of driving the rear wheel brake 6 earlier than the front wheel brake 5 is achieved.

In addition, as shown in FIG. 9, the hydraulic brake control device 500 according to the fifth preferred embodiment of the present invention has substantially the same structure as the fourth embodiment, and is also implemented by a single cylinder, and the difference is the embodiment. Furthermore, a first regulating valve 93 is mounted on a first pipeline 7, and a second regulating valve 94 is mounted on a second conduit 8, and the diameter of the first conduit 7 is equal to the second conduit. The diameter of the road 8

The first regulating valve 93 is used to change the cross-sectional size of the partial first conduit 7, thereby adjusting the flow rate of the oil body through the first conduit 7, and the second regulating valve 94 is used to change the local second The cross-sectional size of the pipe 8 further adjusts the flow rate of the oil body through the second pipe 8; in this embodiment, the flow rate on the first pipe 7 is set to be smaller than the flow rate on the second pipe 8, so that The rear wheel brake 6 is activated earlier.

The structural design of the embodiment provides that the rider can also control the first regulating valve 93 and the second regulating valve 94 according to the riding preference to adjust the first pipeline 7 and the second pipeline 8 The flow rate is used to change the time difference between driving the front brake 5 and the rear brake 6 . In other embodiments, only one of the pipeline-mounted regulating valves may be selected to adjust only the flow rate in the pipeline.

Referring to FIG. 10, a hydraulic brake control device 600 according to a sixth preferred embodiment of the present invention has substantially the same structure as that of the fourth embodiment, except that the pressure cylinder 95 of the present embodiment has only one Opening, the opening provides a main pipe 9 connected to the oil groove 96, wherein the other end of the main pipe 9 is connected to the first pipe 7' and the second pipe 8', respectively, and the pipe of the first pipe 7' The diameter is larger than the diameter of the second conduit 8'.

In this way, the present embodiment can make the flow velocity in the first conduit 7' slower than the flow velocity in the second conduit 8' as in the foregoing fourth and fifth embodiments, so as to achieve the front wheel brake 5 The timing of performing the braking is the effect after the rear wheel brake 6 performs the braking. Moreover, since the pressure cylinder 95 is only provided with one opening, the embodiment of the two openings can reduce the processing procedure and increase the assembly speed, effectively reduce the overall cost of the hydraulic brake control device, and improve the consumer's Purchase Intention.

In addition, in other embodiments, the diameters of the first pipeline and the second pipeline connected to the main pipe may be equal, and a regulating valve is added to the first pipeline and the second pipeline to perform oil speed and oil quantity. Adjustments can also achieve the effects of the foregoing embodiments.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

[this invention]
100, 200, 300, 400, 500, 600‧‧‧ hydraulic brake control device
10‧‧‧煞车把手
20, 50, 70‧‧‧ control devices
22, 52, 72‧‧‧ linkage
221‧‧‧Action
222, 721‧‧‧ pivot
24, 54, 74‧‧‧ Connections
30, 61, 81‧‧‧ first pressure cylinder
32, 65, 82‧‧‧ first oil tank
34, 62, 85 first piston rod
40, 63, 83‧‧‧ second pressure cylinder
42, 66, 84‧‧‧ second oil tank
44, 64, 86‧‧‧second piston rod
90, 95‧‧‧ pressure cylinder
91‧‧‧ piston rod
92, 96‧‧‧ oil tank
93‧‧‧First regulating valve
94‧‧‧Second regulating valve
1‧‧‧Bicycle
2‧‧‧ frame
3‧‧‧ Front wheel
4‧‧‧ Rear wheel
5‧‧‧ Front wheel brake
6‧‧‧Rear wheel brake
7, 7'‧‧‧ first pipeline
8, 8'‧‧‧ second pipeline
9‧‧‧Supervisor

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing a bicycle including a hydraulic brake control device according to a first preferred embodiment of the present invention. 2 is a schematic view of a hydraulic brake control device according to a first preferred embodiment of the present invention. 3 is a partial enlarged view of FIG. 2, showing that the first distance is greater than the second distance. 4 is a schematic view of the first preferred embodiment, showing that the oscillating brake handle pushes the first piston rod and the second piston rod through the control device to move the second piston rod first, and the first piston rod moves backward. Figure 5 is a schematic view of a hydraulic brake control device according to a second preferred embodiment of the present invention. Figure 6 is a schematic view of a hydraulic brake control device according to a third preferred embodiment of the present invention. Figure 7 is a schematic view of a third preferred embodiment of the present invention, showing that the control device pushes the first piston rod and the second piston rod such that the second piston rod moves first, and the first piston rod moves rearward. Figure 8 is a schematic view of a hydraulic brake control device according to a fourth preferred embodiment of the present invention. Figure 9 is a schematic view of a hydraulic brake control device according to a fifth preferred embodiment of the present invention. Figure 10 is a schematic view of a hydraulic brake control device according to a sixth preferred embodiment of the present invention.

100‧‧‧Hydraulic brake control device

10‧‧‧煞车把手

20‧‧‧Control device

221‧‧‧Action

30‧‧‧First pressure cylinder

40‧‧‧Second pressure cylinder

5‧‧‧ Front wheel brake

6‧‧‧Rear wheel brake

7‧‧‧First line

8‧‧‧Second pipeline

Claims (10)

A hydraulic brake control device is mounted on a bicycle, the bicycle includes a front wheel brake device and a rear wheel brake device; the hydraulic brake control device comprises: a handlebar for pivoting to the frame of the bicycle Up and being pivoted by an external force; at least one pressure cylinder is driven by the handle of the brake to drive the front wheel brake and the rear wheel brake to act, wherein the timing of the front wheel brake performing the brake is thereafter After the rim car is executed. The hydraulic brake control device according to claim 1, wherein the number of the at least one pressure cylinder is two, which are respectively a first pressure cylinder and a second pressure cylinder; the first pressure cylinder includes a first oil groove and a a first piston rod, the first oil groove is connected to the front wheel brake, the first piston rod is movably inserted into the first oil groove by the brake handle; the second pressure cylinder includes a second oil groove And a second piston rod, the second oil groove is connected to the rear wheel brake, and the second piston rod is also driven by the brake handle to be movably inserted into the second oil groove. The hydraulic brake control device of claim 2, further comprising a control device, the control device comprising a connecting member pivotally connected to the first piston rod and the second piston rod, the pivoting brake handle of the connection The piece generates a side thrust that urges the front wheel brake to act through the first piston rod and urges the rear wheel brake to act through the second piston rod. The hydraulic brake control device of claim 3, wherein the control device comprises a connecting rod, the connecting rod has a pivoting end and an active end, the pivoting end is pivotally connected to the connecting member, and the pivoting a first distance from the pivoting point of the connecting member to the first piston rod, the pivoting end being a second distance from the pivoting point of the connecting member and the second piston rod, wherein the first distance The second distance is greater than the second distance so that the side thrust is biased against the second piston rod; the active end abuts the brake handle; wherein the volume of the first oil groove is equal to the volume of the second oil groove. The hydraulic brake control device according to claim 2, further comprising a control device, the control device comprising a connecting member fixed to the first piston rod and the second piston rod, the pivoting brake handle of the connection The piece generates a side thrust to drive the first piston rod and the second piston rod to move synchronously; wherein the volume of the first oil groove is smaller than the volume of the second oil groove. The hydraulic brake control device of claim 2, further comprising a control device; wherein the volume of the first oil groove is greater than the volume of the second oil groove, the control device includes a connecting member and the first piston rod and the first The two piston rods are pivotally connected, and the pivoting brake handle generates a side thrust on the connecting member, and the side thrust passes through a central position between the first piston rod and the second piston rod, so that the second piston rod first Moving, the first piston rod moves back. The hydraulic brake control device of claim 1, wherein the at least one pressure cylinder comprises an oil groove and a piston rod; the oil groove respectively communicates with the front wheel brake device and the rear wheel brake device; the piston rod is disposed in the oil groove Medium, and the handle of the brake is pushed and moved. The hydraulic brake control device of claim 7, further comprising a first conduit and a second conduit connected to the oil sump; the oil sump is in communication with the front wheel brake through the first conduit, and The second pipeline is in communication with the rear wheel brake, wherein the diameter of the first conduit is larger than the diameter of the second conduit. The hydraulic brake control device according to claim 7, comprising a first pipeline, a second pipeline, a first regulating valve mounted on the first pipeline, and a second regulating pipeline mounted on the second pipeline a second regulating valve; wherein the oil groove communicates with the front wheel brake device through the first pipe, and communicates with the rear wheel brake device through the second pipe; the pipe diameter of the first pipe is equal to the second pipe The pipe diameter of the road; the first regulating valve and the second regulating valve are respectively used to adjust the oil velocity passing through the first pipe and the second pipe. The hydraulic brake control device according to claim 8 includes a main pipe, the main pipe is connected to the oil groove at one end, and the other end of the main pipe is connected to the first pipe and the second pipe, respectively.