TW201714784A - Hydraulic time differential brake device - Google Patents

Abstract

A hydraulic time differential brake device includes a main pump means, a transmission pump means and a time differential pump means, wherein the transmission pump means is provided with a transmission piston interlocking directly with a main piston of the main pump means, and the time differential pump means is provided with a time differential piston spaced apart from the main piston by a traveling distance in such a manner that when the main pump means launches a brake operation, the transmission pump means directly outputs a direct brake oil pressure to activate a first brake, and the time differential pump means will output a delayed brake oil pressure to activate a second brake in a predetermined time difference.

Description

Hydraulic time difference brake device

The present invention relates to a brake control device, and more particularly to a hydraulic time difference brake device.

In the brake control of various vehicles such as automobiles, locomotives, bicycles, etc., there is often a need to perform brake control with sequential output, which is intended to cause a time difference between the braking actions of different tires, so that the vehicle has a brake on the brakes. The ideal performance of smoother and more stable.

Taking the bicycle brake control as an example, the bicycle braking device of the general bicycle presses the brake handle by the rider to drive the brake device to brake the front and rear wheels of the bicycle. Usually, one brake handle of the bicycle is correspondingly driven to drive a brake, the right brake handle is a brake that controls the rear wheel, and the left brake handle is linked to the brake that controls the front wheel. In order to complete the braking of the bicycle while maintaining a stable and stable state, it is usually necessary to drive the brake of the rear wheel and then the brake of the front wheel. However, in the event of a critical situation, accidental manipulation of the brakes of the front and rear wheels is inevitable, resulting in accidents such as bicycle overturning or slipping.

Accordingly, it is an object of the present invention to provide a hydraulic time difference braking device capable of causing different tires of a vehicle to perform a braking operation with a time difference.

The technical means for solving the problems of the prior art provides a hydraulic type time difference braking device, comprising: a master pump mechanism having a master pump chamber, a master pump piston, and a main pump chamber connected thereto a first input tube and a second input tube, wherein the main pump piston is disposed in the main pump chamber and slides with a pressure change in the main pump chamber, the first input tube and the second input The tube is configured to be pressurized by inputting hydraulic oil into the total pump chamber by operation of a first brake operating member and a second brake operating member, respectively, and the master pump piston is pressed to slide along a pressure output direction. a moving pump mechanism having a linkage pump chamber, a linkage pump piston, and a first output tube connected to the linkage pump chamber, the linkage pump piston being disposed in the linkage pump chamber and directly linked to The master cylinder piston pressurizes the linkage pump chamber as the master cylinder piston slides along the pressure output direction, so that the linkage pump chamber outputs hydraulic oil from the first outlet tube, providing as a direct Brake the car and drive the first a brake device; and a time difference pump mechanism having a time difference pump chamber, a time difference pump piston, and a second output tube connected to the time difference pump chamber, the time difference pump piston being disposed in the time difference pump chamber, and the The time difference pump piston is spaced apart from the master pump piston by a stroke distance in the pressure output direction before the master cylinder piston is uncompressed, and the master cylinder piston is slid along the pressure output direction after the stroke distance Pushing the time difference pump piston to slip, and pressurizing the time difference pump chamber, so that the time difference pump chamber outputs hydraulic oil from the second output tube, and provides a second brake device as a time difference brake hydraulic pressure and a time difference driving, wherein The interlocking pump chamber and the time difference pump chamber are arranged such that a ratio of a chamber radius of the interlocking pump chamber to a chamber radius of the time difference pump chamber has a predetermined chamber radius ratio, and the time difference is made The brake oil pressure and the direct brake oil pressure have a predetermined brake oil pressure ratio corresponding to the chamber radius ratio.

In an embodiment of the invention, the linked pump chamber and the time difference pump chamber have different chamber radii.

In an embodiment of the invention, the chamber radius of the time difference pump chamber is greater than the chamber radius of the linkage pump chamber, such that the time difference brake oil pressure is greater than the direct brake oil pressure.

In an embodiment of the invention, the interlocking pump mechanism further includes a first resetting member coupled to the linked pump piston, the first resetting member being configured to normally push the piston in a direction opposite to the pressure output direction Link the pump piston.

In an embodiment of the invention, the first reset member is a spring.

In an embodiment of the invention, the time difference pump mechanism further includes a second reset member coupled to the time difference pump piston, the second reset member being configured to normally push the piston in a direction opposite to the pressure output direction. Time difference pump piston.

In an embodiment of the invention, the second reset member is a spring.

In an embodiment of the invention, the main pump chamber, the linked pump chamber, and the time difference pump chamber are integrally connected chambers.

In an embodiment of the invention, the first brake device used by the linkage pump mechanism is a rear wheel brake device, and the second brake device used by the time difference pump mechanism is a front wheel brake device.

Through the technical means adopted by the present invention, the present invention can control different tires to perform the braking action with time difference, so that the vehicle has a smoother and stable ideal performance on the brake. For example, when the present invention is applied to a bicycle, it is possible to effectively avoid the accident that the bicycle is overturned due to premature wheeling of the front wheel or sudden stop of the two wheels, or the rider is moved away from the vehicle body by inertial motion. When the present invention is applied to automobiles and locomotives, it is also possible to perform corresponding time difference braking control in accordance with the respective vehicle types to achieve a smooth and stable braking. In addition, in the embodiment of the present invention, the ratio of the ratio of the ratio of the output of the brake oil is changed by adjusting the radius ratio between each chamber (the linkage pump chamber and the time difference pump chamber), thereby realizing the application to different tires. The control of the brake force.

Hereinafter, embodiments of the present invention will be described with reference to Figs. 1 to 3 . This description is not intended to limit the embodiments of the invention, but is an embodiment of the invention.

As shown in FIG. 1, a hydraulic type time difference braking device 100 according to an embodiment of the present invention includes: a master pump mechanism 1 having a master pump chamber 10, a master pump piston 11, and a connection to the total a first input pipe 101 and a second input pipe 102 of the pump chamber 10, the master pump piston 11 is disposed in the main pump chamber 10 and slips as the pressure in the main pump chamber 10 changes. The first input pipe 101 and the second input pipe 102 are disposed to be charged by the hydraulic brake oil H in the main pump chamber 10 by the operation of a first brake operating member L1 and a second brake operating member L2, respectively. Pressing, the master pump piston 11 is pressed and slidably moved in a pressure output direction D; a linkage pump mechanism 2 has a linkage pump chamber 20, a linkage pump piston 21, and a linkage pump chamber a first output pipe 201 of the chamber 20, the interlocking pump piston 21 is disposed in the interlocking pump chamber 20 and directly coupled to the master pump piston 11, and slides along the pressure output direction D along with the master pump piston 11 The interlocking pump chamber 20 is pressurized to cause the interlocking pump chamber 20 to output hydraulic oil from the first output pipe 201. a first brake device B1 is driven by a direct brake oil pressure P1; and a time difference pump mechanism 3 having a time difference pump chamber 30, a time difference pump piston 31, and a second output connected to the time difference pump chamber 30. a tube 301, the time difference pump piston 31 is disposed in the time difference pump chamber 30, and the time difference pump piston 31 is before the master pump piston 11 is uncompressed and the master pump piston 11 is in the pressure output direction D. A stroke distance D _T is spaced apart, and the master cylinder piston 11 is slid in the pressure output direction D by the stroke distance D _T to push the time difference pump piston 31 to slip, and the time difference pump chamber 30 is pressurized. The time difference pump chamber 30 outputs hydraulic oil from the second output pipe 301 to provide a second brake B2 as a time difference brake hydraulic pressure P2 and a time difference.

In the present embodiment, the hydraulic time difference braking device 100 is applied to a braking system of a bicycle (not shown). The first brake operating member L1 to which the first input pipe 101 is connected is the right brake hydraulic pressure handle of the bicycle, and the second brake operating member L2 connected to the second input pipe 102 is the left brake hydraulic pressure of the bicycle. The first brake device B1 to which the first output pipe 201 is connected is the rear wheel brake of the bicycle, and the second brake device B2 to which the second output pipe 301 is connected is the front wheel brake of the bicycle. Of course, the present invention is not limited thereto, and the hydraulic time difference braking device 100 may also be connected to the brake operating member and the brake device of the vehicle in other correspondences to be applied to different vehicles.

Next, the detailed structure and operation mode of the hydraulic time difference braking device 100 of the present invention will be described with reference to Figs. 1 to 3 .

As shown in FIG. 1 , the main pump chamber 10 of the main pump mechanism 1 is connected to the first brake operating member L1 and the second brake operating member through the first input pipe 101 and the second input pipe 102 respectively. L2, whereby the hydraulic brake oil H enters the main pump chamber 10 regardless of whether the first brake operating member L1 or the second brake operating member L2 is operated (pressing the hydraulic handle), thereby pushing the master cylinder piston 11 (Fig. 2). With this structure, the user's mishandling problem can be completely solved without changing the original braking system structure of the vehicle.

As shown in FIG. 2, when the master cylinder piston 11 is pushed and slidably moved in the pressure output direction D, the interlocking pump piston 21 follows the master cylinder piston by direct linkage with the master cylinder piston 11. Sliding motion along the pressure output direction D together. Therefore, the sliding movement of the interlocking pump piston 21 in the pressure output direction D causes the volume of the interlocking pump chamber 20 to become smaller and the pressure to rise, and the first brake tube B1 is directly braked through the first output pipe 201. The oil pressure P1 drives the first brake B1. Thereby, for example, the rear wheel of the bicycle is immediately started to brake. Incidentally, there are many ways of achieving direct linkage between the interlocking pump piston 21 and the master cylinder piston 11, for example, by arranging the interlocking pump piston 21 and the master cylinder piston 11 to maintain mutual abutment, When the master cylinder piston 11 is slidably moved in the pressure output direction D, the linked pump piston 21 is pushed. For another example, by integrally connecting the linked pump piston 21 and the master pump piston 11, the master cylinder piston 11 and the interlocking pump piston 21 are integrally moved.

As shown in FIG. 2, after the master cylinder piston 11 continues to be pushed and the stroke distance D _T is slipped, the master cylinder piston 11 abuts against the time difference pump piston 31, so that the time difference pump piston 31 will follow. By the push of the master cylinder piston 11, it is slidably moved along the pressure output direction D together with the master cylinder piston 11. Therefore, the sliding movement of the time difference pump piston 31 along the pressure output direction D makes the volume of the time difference pump chamber 30 smaller and the pressure rise, and the second brake pipe 301 provides a time difference brake to the second brake device B2. The oil pressure P2 drives the second brake B2. Thereby, it is possible to make a time difference between the output of the time difference brake hydraulic pressure P2 and the output of the direct brake hydraulic pressure P1, and for example, the front wheel of the bicycle starts to brake after the bicycle rear wheel starts to brake for a while.

As shown in FIGS. 1 to 3, the interlocking pump chamber 20 and the time difference pump chamber 30 are disposed such that the chamber radius r2 of the interlocking pump chamber 20 and the chamber of the time difference pump chamber 30 are provided. Having a predetermined chamber radius ratio between the radii r3, and having a predetermined brake oil pressure ratio, that is, oil, between the time difference brake oil pressure P2 and the direct brake oil pressure P1 corresponding to the chamber radius ratio Pressure size ratio. In the present embodiment, the linked pump chamber 20 and the time difference pump chamber 30 have different chamber radii, and the chamber radius r3 of the time difference pump chamber 30 is greater than the chamber radius of the linked pump chamber 20. R2, the time difference brake hydraulic pressure P2 is greater than the direct brake hydraulic pressure P1. Thereby, for example, the front wheel braking speed (motion speed) of the bicycle is faster than the rear wheel braking speed, so that it is possible to achieve a larger braking force for the front wheel that starts the braking later than the rear wheel that starts the braking earlier.

As shown in FIG. 1 to FIG. 3, in the embodiment, the interlocking pump mechanism 2 further includes a first resetting member 22 connected to the linked pump piston 21, and the first resetting member 22 is set to be normally oriented toward one. Conversely, the interlocking pump piston 21 is urged in the direction of the pressure output direction D, so that the interlocking pump piston 21 is returned to the position before the slip (i.e., the position shown in Fig. 1) when it is not subjected to other external force. The first reset member 22 can be a spring, and the linked pump piston 21 is pushed by the elastic force.

Similarly, in the present embodiment, the time difference pump mechanism 3 further includes a second reset member 32 coupled to the time difference pump piston 31. The second reset member 32 is disposed normally opposite to the pressure output direction D. The time difference pump piston 31 is urged such that the time difference pump piston 31 is returned to the position before the slip (i.e., the position shown in Fig. 1) when it is not subjected to other external force. The second reset member 32 can be a spring, and the time difference pump piston 31 is pushed by the elastic force.

As shown in FIGS. 1 to 3, preferably, the main pump chamber 10, the interlocking pump chamber 20, and the time difference pump chamber 30 are integrally connected chambers. In detail, the main pump chamber 10, the linked pump chamber 20 and the time difference pump chamber 30 are in a single space in a single housing 4, and are separated by a piston and a blocking wall. In the embodiment, the chamber radius r1 of the main pump chamber 10 is substantially equal to the sum of the chamber radius r2 of the interlocking pump chamber 20 and the chamber radius r3 of the time difference pump chamber 30. With such a structure of the integrally connected chamber, the overall volume of the hydraulic time difference braking device 100 can be made smaller, and the overall structural reliability can be improved by reducing the connection between the members.

With the above configuration, the hydraulic time difference braking device 100 of the present invention can control different tires to perform a braking operation with a time difference, so that the vehicle has a smoother and stable ideal performance on the brake. For example, when the present invention is applied to a bicycle, it is possible to effectively avoid the accident that the bicycle is overturned due to premature wheeling of the front wheel or sudden stop of the two wheels, or the rider is moved away from the vehicle body by inertial motion. When the present invention is applied to automobiles and locomotives, it is also possible to perform corresponding time difference braking control in accordance with the respective vehicle types to achieve a smooth and stable braking.

The above description and description are only illustrative of the preferred embodiments of the present invention, and those of ordinary skill in the art can make other modifications in accordance with the scope of the invention as defined below and the description above, but such modifications should still be It is within the scope of the invention to the invention of the invention.

100‧‧‧Hydraulic time difference brake device
1‧‧‧Main pump mechanism
10‧‧‧Master pump chamber
101‧‧‧First input tube
102‧‧‧Second input tube
11‧‧‧Master pump piston
2‧‧‧ linkage pump mechanism
20‧‧‧ linkage pump chamber
201‧‧‧First output tube
21‧‧‧Continuous pump piston
22‧‧‧First reset
3‧‧‧Time difference pump mechanism
30‧‧‧Time difference pump chamber
301‧‧‧Second output tube
31‧‧‧Time difference pump piston
32‧‧‧Second reset
4‧‧‧Shell
B1‧‧‧First brake
B2‧‧‧Second brake
D‧‧‧pressure output direction
D _T ‧‧‧Travel distance
H‧‧‧Hydraulic oil
L1‧‧‧First brake operating parts
L2‧‧‧Second brake operating parts
P1‧‧‧Direct brake hydraulic pressure
P2‧‧‧hours brake oil pressure
R1‧‧‧ chamber radius
R2‧‧‧ chamber radius
R3‧‧‧ chamber radius

[Fig. 1] is a schematic view showing a hydraulic type time difference braking device according to an embodiment of the present invention; [Figs. 2 and 3] are schematic views showing the continuous operation of the hydraulic type time difference braking device of Fig. 1; .

100‧‧‧Hydraulic time difference brake device

1‧‧‧Main pump mechanism

10‧‧‧Master pump chamber

101‧‧‧First input tube

102‧‧‧Second input tube

11‧‧‧Master pump piston

2‧‧‧ linkage pump mechanism

20‧‧‧ linkage pump chamber

201‧‧‧First output tube

21‧‧‧Continuous pump piston

22‧‧‧First reset

3‧‧‧Time difference pump mechanism

30‧‧‧Time difference pump chamber

301‧‧‧Second output tube

31‧‧‧Time difference pump piston

32‧‧‧Second reset

4‧‧‧Shell

B1‧‧‧First brake

B2‧‧‧Second brake

D _T ‧‧‧Travel distance

L1‧‧‧First brake operating parts

L2‧‧‧Second brake operating parts

R1‧‧‧ chamber radius

R2‧‧‧ chamber radius

R3‧‧‧ chamber radius

Claims (9)

A hydraulic pressure time brake device comprises: a master pump mechanism having a master pump chamber, a master pump piston, and a first input pipe and a second input pipe connected to the master pump chamber, the total a pump piston is disposed in the main pump chamber and slides with a pressure change in the main pump chamber, and the first input tube and the second input tube are disposed to receive a first brake operating member and a second The operation of the brake operating member is pressurized by inputting hydraulic oil into the main pump chamber, so that the main pump piston is pressed and slides along a pressure output direction; a linkage pump mechanism has a linkage pump chamber, a pump piston and a first output pipe connected to the interlocking pump chamber, the interlocking pump piston being disposed in the interlocking pump chamber and directly linked to the master pump piston, along with the total pump piston along the pressure Sliding movement in the output direction to pressurize the linkage pump chamber, such that the linkage pump chamber outputs hydraulic oil from the first output tube, providing a first brake device as a direct brake oil pressure; and a time difference pump mechanism With a time difference pump chamber, a time difference pump piston, and a second output tube connected to the time difference pump chamber, the time difference pump piston is disposed in the time difference pump chamber, and the time difference pump piston is before the main pump piston is uncompressed and slipped The master pump piston is spaced apart by a stroke distance in the pressure output direction, so that the master cylinder piston slides the stroke distance along the pressure output direction to push the time difference pump piston to slip, and pressurize the time difference pump chamber, Having the time difference pump chamber output hydraulic oil from the second output pipe, providing a second brake device as a time difference brake hydraulic pressure and a time difference, wherein the linkage pump chamber and the time difference pump chamber are configured to Between the chamber radius of the linkage pump chamber and the chamber radius of the time difference pump chamber, a predetermined chamber radius ratio is obtained, and the time difference brake oil pressure and the direct brake oil pressure correspond to the chamber radius It has a predetermined brake oil pressure ratio. The hydraulic pressure time brake device of claim 1, wherein the interlocking pump chamber and the time difference pump chamber have different chamber radii. The hydraulic pressure time difference braking device according to claim 1, wherein a chamber radius of the time difference pump chamber is larger than a chamber radius of the interlocking pump chamber, so that the time difference brake oil pressure is greater than the direct brake oil pressure. The hydraulic pressure time brake device according to claim 1, wherein the interlocking pump mechanism further comprises a first resetting member connected to the interlocking pump piston, the first resetting member being set to be normally opposite to the pressure output direction. The direction pushes the linked pump piston. The hydraulic pressure time brake device of claim 4, wherein the first reset member is a spring. The hydraulic pressure time brake device of claim 1, wherein the time difference pump mechanism further comprises a second reset member coupled to the time difference pump piston, the second reset member being set to be normally opposite to the pressure output direction. The direction pushes the jet pump piston. The hydraulic pressure time brake device according to claim 6, wherein the second reset member is a spring. The hydraulic pressure time brake device of claim 1, wherein the main pump chamber, the linked pump chamber, and the time difference pump chamber are integrally connected chambers. The hydraulic brake type brake device according to claim 1, wherein the first brake device used by the linkage pump mechanism is a rear wheel brake device, and the second brake device used by the time difference pump mechanism is For a front wheel brake.