CN206664840U - Master cylinder for the improvement of coupling brake system - Google Patents

Abstract

The utility model includes a cylinder body, one first rocking arm, one second rocking arm, a first brake lever and a positive stops on a kind of master cylinder of the improvement for coupling brake system, the master cylinder.Cylinder body is built with hydraulic oil and is installed with a piston, and in the recessed storage tank in cylinder body side, to house positive stops.First rocking arm, the second rocking arm and first brake lever are articulated on cylinder body respectively, form a linked component, to adjust oil pressure change to control the brake power of brake callipers.Wherein, when the second rocking arm is contradicted to stop block, which limit the maximum pivotal displacement amount of the second rocking arm.Thereby, even if brake oil pipe occurs damaged, the normal start of another second braking mechanism can be still maintained, effectively avoids brake system that comprehensive failure conditions occur.

Description

Modified brake master cylinder for linked brake system

technical field

The utility model relates to an improved brake master cylinder used in a linkage brake system, in particular to an improved brake master cylinder which can prevent failure of linkage brakes.

Background technique

Please refer to FIG. 6 and FIG. 7 , which are respectively the configuration diagram of the existing linkage brake system and the sectional view of the existing brake master cylinder. As shown in the figure, Japanese Patent Laid-Open No. 2016-013770 discloses a design of a brake master cylinder that can be used in a linkage brake system. The brake master cylinder 9 is equipped with a brake lever and can be operated to push the first rocker arm. 912 moves the piston 911 to produce a change in oil pressure, which is supplied from the brake oil pipe 96 to the brake caliper 92b to generate braking force. The brake master cylinder 9 can also use the brake linkage wire 919 to drive the second rocker arm 913 to rotate, so that the second rocker arm 913 Driving the first rocker arm 912 can also cause the displacement of the piston 911 to generate an oil pressure that is supplied from the brake oil pipe 96 to the brake caliper 92b to generate braking force.

In addition, the operating principle of the existing linkage brake system is as follows. The second brake lever 924 transmits the applied force to a linkage brake mechanism 918 through a connecting piece 925, and there is an accommodating portion 918a therein for One end of the balance piece 918b is connected to the second brake lever 924 by a connecting piece 925, and the other end is connected to a brake wire 97 and a brake linkage wire 919 respectively. , so as to drive the braking system of the front and rear wheels respectively. Wherein, the brake wire 97 is connected to a second brake mechanism 93, so that the second brake mechanism 93 can generate a braking force; in addition, the brake linkage wire 919 directly drives the linkage member in the brake master cylinder 9, so that the brake caliper 92b can also generate braking force to clamp the brake disc 92a at the same time, so that the first brake mechanism 92 can achieve the effect of linked brake.

However, even when parts are damaged in order to prevent interlocking brakes, the vehicle can safely stop the vehicle through the rider. Therefore, considerable protective measures must be taken at the brake master cylinder 9 to prevent, for example, when the brake oil pipe 96 is damaged, Also can make the second braking mechanism 93 still can keep actuating, therefore the second rocking arm 913 of brake master cylinder 9 must be provided with limiting function, must limit the actuating range of the second rocking arm 913 within the reasonable actuating range , and the brake master cylinder 9 of the prior art can be used in other car models or linkage systems in order to facilitate the adjustment of the second rocker arm 913, so the second rocker arm 913 is provided with a rotation method to reach the second rocker arm 913 restricts the adjusting bolt 922 device of the actuation area, so that the adjusting bolt 922 can interfere with the cylinder body 90 when actuating, so that the second brake mechanism 93 is not damaged and becomes invalid.

Although the adjustment bolt 922 that uses the rotation method to achieve the adjustment function can conveniently reduce the number of manufacturers’ control over the general product category, it is set in an adjustment method in the design with safety concerns, and the adjustment device is often accessible to the rider. position, it is easy for the rider to have the opportunity to adjust it arbitrarily. Once the original factory setting is adjusted arbitrarily, the rider will be exposed to the state of brake failure at any time.

Utility model content

The main purpose of this utility model is to provide an improved brake master cylinder for the interlocking brake system. The brake master cylinder can be set by the limit stopper, so that even if the brake oil pipe is damaged, it can still maintain the other brake cylinder. - Normal operation of the second brake mechanism. In addition, through the setting method of the present invention, in addition to being applicable to various types of vehicles, it is also possible to avoid any contact adjustment by the rider, so that the linkage brake system is exposed to the brakes at any time. in a failed state.

In order to achieve the above purpose, the utility model is an improved brake master cylinder used in a linkage brake system. The linkage brake system includes a second brake lever, a brake master cylinder, a linkage brake mechanism and a brake linkage wire. It is used to jointly control a first brake mechanism and a second brake mechanism, wherein the brake master cylinder includes a cylinder block, a first rocker arm, a second rocker arm, a first brake lever and a limit stop stopper. Hydraulic oil is installed in the cylinder body and a piston is accommodated, and a housing groove is recessed on the side of the cylinder body. The first rocker arm is pivotally connected to the cylinder body and has a first pushing part for pushing the piston. The two rocker arms are pivotally connected to the cylinder body and have a second pushing portion for pushing the first rocker arm. The first brake lever is pivotally connected to the cylinder body and has a protruding portion for pushing the first rocker arm. In this way, through the interlocking relationship between the first rocker arm, the second rocker arm and the first brake lever, the piston in the cylinder can be pushed to generate a displacement, and then oil pressure changes can be provided to control the brake calipers to generate braking force. In addition, the limit stopper of the brake master cylinder includes a stop block, which is accommodated in the accommodating groove, wherein, when the second rocker arm touches the stop block, it limits the maximum limit of the second rocker arm. The amount of pivotal displacement enables the interlocking brake mechanism to maintain the normal operation of the second brake mechanism, thereby avoiding a comprehensive failure of the brake system. Through the above design, the utility model can avoid the excessive displacement of the second rocker arm due to the breakage of the brake oil pipe, etc., so that the linkage brake mechanism cannot play its role, and the brake system of the other wheel is damaged.

The above-mentioned limit stopper may also include a spring, which respectively abuts against the cylinder body and the second rocker arm, provides the restoring force of the second rocker arm after being linked, and acts as a spring when the second rocker arm contacts the stop block. buffer components.

The above-mentioned stop block can have at least one size length, and a stop block of a specific size can be selected selectively. In this way, for the brake master cylinders of different models, the most suitable size and length of the stop block can be selected during assembly, so that it has sufficient interference effect and can truly play the stop function.

The first brake lever, the first rocker arm and the second rocker arm can pivot coaxially. In this way, the above-mentioned first brake lever, first rocker arm and second rocker arm can be pivoted and driven along the same axis, which reduces the influence of size matching or tolerance among the components and achieves a better linkage effect.

One end of the above-mentioned second rocker arm can be connected with a brake linkage wire. Thus, in the brake linkage system of the present invention, the second rocker arm is controlled by the brake linkage wire to pivot and act as a communication bridge between the front and rear wheel brake systems.

The interlocking brake mechanism may further include a balance piece, which is used for interlocking control of the second brake lever, the first brake mechanism and the second brake mechanism, so as to respectively drive the brake systems of the front and rear wheels.

In addition, the present model may also include another improved brake master cylinder for the linkage brake system. The linkage brake system includes a second brake lever, a brake master cylinder, a linkage brake mechanism and a brake linkage wire , for interlocking control of a first brake mechanism and a second brake mechanism, wherein the brake master cylinder includes: a cylinder block, a rocker arm, a first brake lever and a limit stopper. The cylinder is equipped with hydraulic oil and accommodates a piston, and a housing groove is recessed on the side of the cylinder. The rocker arm is pivotally connected to the cylinder and has a pushing part for pushing the piston. The first brake lever pivots Connected to the cylinder body, it has a protruding part for pushing the piston. Thereby, through the interlocking relationship between the above-mentioned rocker arm and the first brake lever, the piston in the cylinder can be pushed to generate a displacement, and then oil pressure changes are provided to control the brake caliper to generate a braking force. In addition, the limit stopper includes a stop block, which is accommodated in the accommodating groove, wherein, when the rocker arm touches the stop block, it limits the maximum pivotal displacement of the rocker arm, so that the linkage The braking mechanism can maintain the normal operation of the second braking mechanism, so as to avoid comprehensive failure of the braking system.

The above summary and the following detailed description are exemplary in order to further illustrate the patent scope of the present utility model. Other purposes and advantages of the present utility model will be described in the following descriptions and illustrations.

Description of drawings

Fig. 1 is a configuration diagram of the linkage braking system of the first embodiment of the present invention.

Fig. 2 is a partial cross-sectional view of the interlocking brake system of the first embodiment of the present invention.

Fig. 3 is a schematic diagram of the operation of the linked brake system and the brake master cylinder of the first embodiment of the present invention.

FIG. 4 is another schematic diagram of the linkage brake system and the brake master cylinder of the first embodiment of the present invention.

Fig. 5 is a configuration diagram of the linkage braking system of the second embodiment of the present invention.

Fig. 6 is a configuration diagram of an existing linkage braking system.

Fig. 7 is the sectional view of existing brake master cylinder.

【Symbol Description】

1,51,9 Brake master cylinder 10,510 1st brake lever

10e,510e Protrusion 11,911 Piston

12,912 The first rocker arm 121 The first push part

13,913 Second rocker arm 13e Second push part

14,90 cylinder block 141 receiving tank

17 pivot 18,918 linkage brake mechanism

18a, 918a Receptacle 18b, 918b Balancer

19,919 Brake linkage wire 2,92 First brake mechanism

2a,92a Brake Disc 2b,92b Brake Caliper

23 spring 24,924 second brake lever

25,925 Connector 3,93 Second brake mechanism

4 Limit stop 41 Stop block

513 rocker arm 513e push part

6,96 Brake hose 7,97 Brake wire

922 Adjusting bolt

detailed description

In order to facilitate those of ordinary skill in the art to understand and realize the utility model, the embodiments of the utility model are now described in conjunction with the accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , which are respectively a configuration diagram and a partial cross-sectional view of the linkage brake system according to the first embodiment of the present invention. The figure shows a linkage brake system, which mainly includes a first brake lever 10, a second brake lever 24, a brake master cylinder 1, a linkage brake mechanism 18 and a brake linkage wire 19 for linkage Dynamically control a first braking mechanism 2 and a second braking mechanism 3. In this embodiment, for convenience of description, the first brake mechanism 2 is a disc brake mechanism, and the second brake mechanism 3 is a drum brake mechanism, but it is not limited thereto. The first brake mechanism 2 and the second brake mechanism The brake mechanism 3 is not limited to a specific brake mechanism, which can be different forms of a disc brake mechanism or a drum brake mechanism.

In this embodiment, the second brake lever 24 transmits the applied force to a linkage brake mechanism 18 through a connecting piece 25, and there is an accommodating portion 18a therein for accommodating a balance piece 18b capable of translating and sliding. One end of the balancer 18b is connected to the second brake lever 24 by a connecting piece 25, and the other end is connected to a brake wire 7 and a brake linkage wire 19 respectively, so as to drive the brakes of the front and rear wheels respectively. system. Wherein, the brake wire 7 is connected to a second brake mechanism 3, so that the second brake mechanism 3 can generate a braking force; in addition, the brake linkage wire 19 directly drives the linkage member in the brake master cylinder 1, so that the brake caliper 2b can also generate braking force to clamp the brake disc 2a at the same time, so that the first brake mechanism 2 can achieve the effect of linked braking.

On the other hand, the brake master cylinder 1 used in the present invention mainly includes a cylinder body 14 , a first rocker arm 12 , a second rocker arm 13 , a limit stopper 4 and the above-mentioned first brake lever 10 . Hydraulic oil is housed in the cylinder 14 and a piston 11 is accommodated therein, and the piston 11 can send out the hydraulic oil and establish oil pressure. In this embodiment, the first brake lever 10 , the first rocker arm 12 , and the second rocker arm 13 are pivoted on the cylinder body 14 through the pivot 17 at the same time, so the three can pivot coaxially through the pivot 17 Rotation, so as to reduce the impact of size matching or tolerance between components, and achieve better linkage effect. Wherein, the first rocker arm 12 has a first pushing portion 121, which can push the piston 11 to move through rotation; the first brake lever 10 has a protruding portion 10e, which can push the first rocker arm 12 through the rotation of the brake lever 10; The second rocker arm 13 has a second pushing portion 13 e, which can push the first rocker arm 12 through the rotation of the second rocker arm 13 . In this way, in addition to pressing the first brake lever 10 to drive the first rocker arm 12 to push the piston 11 to move, the rider can also press the second brake lever 24 to make the brake linkage wire 19 pull the second rocker arm 13 Rotate, and then push the first rocker arm 12, the above two ways can make the brake master cylinder 1 generate an oil pressure from the brake oil pipe 6 to supply to the brake caliper 2b, so that the first brake mechanism 2 can achieve the braking effect.

Furthermore, the side of the cylinder body 14 of the present utility model is provided with an accommodating groove 141, in which a limit stopper 4 is housed. In this embodiment, the limit stopper 4 includes a stop Block 41 and a spring 23, but not limited thereto, can also be a combined application of the stop block and other mechanisms. The length of the stop block 41 can be designed according to the collocation of the interlocking system, so that the actuating stroke of the second rocker arm 13 can be properly interfered. In this way, the utility model can select the most suitable size and length of the stop block 41 when assembling the brake master cylinder 1 of different models, so that it has sufficient interference effect and can truly play the stop function.

Next, please refer to FIG. 3 and FIG. 4 , which are schematic diagrams of the linkage brake system and the brake master cylinder and another schematic diagram of the operation of the first embodiment of the present invention. As shown in Figure 3, when the rider presses the first brake lever 10, it drives the first rocker arm 12 to move against the piston 11 through the protruding part 10e, and the brake master cylinder 1 will generate an oil pressure from the brake oil pipe 6 to the The brake caliper 2b enables the first brake mechanism 2 to achieve a braking effect. On the other hand, as shown in Figure 4, when the rider presses the second brake lever 24, the balance piece 18b will pull the brake wire 7 and the brake linkage wire 19 at the same time, and transmit the applied force to the first brake wire of the front and rear wheels respectively. A brake mechanism 2 and a second brake mechanism 3 . Wherein, under normal conditions, the limit stopper 4 is only used to limit the maximum pivotal displacement of the second rocker arm 13 when the second brake lever 24 is pressed, and the second rocker arm 13 is connected by the spring 23 . The restoring force after action is used as a buffer assembly when the second rocker arm 13 is in contact with the stop block 41 .

However, when the first brake oil pipe 6 leaks oil or other abnormal conditions, because the cylinder 14 has lost oil pressure to support the thrust of the piston 11, the brake linkage wire 19 will easily pull the second rocker arm 13 at this time. , so that the spring 23 is compressed, and at the same time, the second rocker arm 13 is bumped against the stop block 41 of the limit stopper 4, which limits the maximum pivotal displacement of the second rocker arm 13, and also makes the balance member The two ends of 18b (the connecting end of the brake linkage wire 19 and the connecting end of the brake wire 7) can be kept in a state of force balance without eccentric inclination, so that the brake oil pipe 6 can be maintained in the state of oil leakage. The normal operation of the second braking mechanism 3 avoids the comprehensive failure of the braking system. In addition, through the above-mentioned design method, when the vehicle is assembled, by changing the size and length of the stop block 41, the brake master cylinder 1 can be easily adapted to other models. Or it will not cause abnormal linkage system due to misadjustment.

Please refer to FIG. 5 , which is a configuration diagram of the linkage braking system of the second embodiment of the present invention. As shown in the figure, the structural features of the interlocking brake system of this embodiment are roughly consistent with those of the first embodiment. The main difference is that the brake master cylinder 51 of the second embodiment only uses a single rocker arm 513, and the first brake The lever 510 can directly push the piston, so the connections and actuation methods of the various components will be slightly different from those of the first embodiment.

In this embodiment, the brake master cylinder 51 includes a cylinder body 14 , a rocker arm 513 , a first brake lever 510 and a limit stopper 23 . Wherein, the first brake lever 510 and the rocker arm 513 are pivoted on the cylinder body 14 through the pivot 17 at the same time, so they can pivot coaxially through the pivot 17 . In addition, the rocker arm 513 is pivotally connected to the cylinder body 14 and has a pushing portion 513e, which can push the piston (not shown) to move by rotating the rocker arm 513 . The first brake lever 510 is pivotally connected to the cylinder body 14 and has a protruding portion 510e, which can push the piston (not shown) to move by rotating the first brake lever 510 . In this way, in addition to directly pushing the piston to move by pressing the first brake lever 510, the rider can also press the second brake lever 24 to make the brake linkage wire 19 pull the rocker arm 513 to rotate, and then directly push the piston to move Both of the above two methods can make the brake master cylinder 51 generate an oil pressure from the brake oil pipe 6 to supply to the brake caliper 2b, so that the first brake mechanism 2 can achieve the braking effect. As for the other structural features of this embodiment are the same as those of the first embodiment, please refer to the description of the first embodiment, and will not repeat them here.

Although the utility model has been described by the embodiments, those of ordinary skill in the art know that, without departing from the spirit and essence of the utility model, the utility model can have many deformations and changes, and the scope of the utility model is defined by The appended claims are defined.

Claims (12)

1. An improved brake master cylinder for a linked brake system, characterized in that the linked brake system includes a second brake lever, a brake master cylinder, a linked brake mechanism and a brake linked wire, Used to jointly control a first brake mechanism and a second brake mechanism, the brake master cylinder includes: A cylinder, which is filled with hydraulic oil and accommodates a piston, and a receiving groove is recessed on the side of the cylinder; A first rocker arm, pivotally connected to the cylinder body, has a first pushing portion for pushing the piston; A second rocker arm is pivotally connected to the cylinder body and has a second pushing portion for pushing the first rocker arm; a first brake lever, pivotally connected to the cylinder body, has a protruding portion for pushing the first rocker arm; and A limiting stopper, including a stop block, is accommodated in the accommodating groove, wherein, when the second rocker arm abuts against the stop block, it limits the maximum pivoting of the second rocker arm The amount of displacement enables the interlocking brake mechanism to maintain the normal operation of the second brake mechanism and avoid a comprehensive failure of the brake system. 2. The improved brake master cylinder for a linked brake system as claimed in claim 1, wherein the limit stopper further comprises a spring. 3. The improved brake master cylinder for a linked brake system as claimed in claim 1, wherein the stop block has at least one size length, and the stop block of a specific size can be selectively selected. 4. The improved brake master cylinder for a linked brake system as claimed in claim 1, wherein the first brake lever, the first rocker arm and the second rocker arm pivot coaxially. 5. The improved brake master cylinder for a linked brake system according to claim 1, wherein one end of the second rocker arm is connected to a brake linked wire. 6. The improved brake master cylinder for a linked brake system as claimed in claim 1, wherein the linked brake mechanism further comprises a balance piece. 7. An improved brake master cylinder for a linked brake system, characterized in that the linked brake system includes a second brake lever, a brake master cylinder, a linked brake mechanism and a brake linked wire, Used to jointly control a first brake mechanism and a second brake mechanism, the brake master cylinder includes: A cylinder, which is filled with hydraulic oil and accommodates a piston, and a receiving groove is recessed on the side of the cylinder; a rocker arm, pivotally connected to the cylinder body, has a push portion for pushing the piston; a first brake lever, pivotally connected to the cylinder, has a protruding portion for pushing the piston; and A limit stopper, including a stop block, is accommodated in the accommodating groove, wherein, when the rocker arm touches the stop block, it limits the maximum pivotal displacement of the rocker arm, so that The interlocking brake mechanism can maintain the normal operation of the second brake mechanism and avoid comprehensive failure of the brake system. 8. The improved brake master cylinder for a linked brake system as claimed in claim 7, wherein the limit stopper further comprises a spring. 9. The improved brake master cylinder for a linked brake system as claimed in claim 7, wherein the stop block has at least one size length, and the stop block of a specific size can be selectively selected. 10 . The improved brake master cylinder for a linked brake system as claimed in claim 7 , wherein the first brake lever and the rocker arm are coaxially pivoted. 11 . 11. The improved brake master cylinder for a linked brake system as claimed in claim 7, wherein one end of the rocker arm is connected to a brake linked wire. 12. The improved brake master cylinder for a linked brake system as claimed in claim 7, wherein the linked brake mechanism further comprises a balance piece.