KR101353720B1 - A Caliper for Breaking System - Google Patents

Abstract

The present invention relates to a caliper for a braking device, the configuration of which is formed in a space therein, a housing in which the hydraulic cylinders facing each other are formed in two upper and lower stages on each side wall of the space, and each of the hydraulic cylinders And a first oil passage connecting the piston which is inserted and slid, a pair of hydraulic cylinders corresponding to the upper end, and a second oil channel connecting the pair of hydraulic cylinders corresponding to the lower end. It features.

Description

Caliper for Breaking System {A Caliper for Breaking System}

The present invention relates to a caliper for a braking device, and more particularly to a caliper for a braking device used for a disc brake.

The brake system of the vehicle is an important device used to decelerate or stop the driving vehicle. In general, a friction brake is used to convert the kinetic energy of the vehicle using friction force into thermal energy and release it into the atmosphere to brake. have.

Braking device operating mechanisms are mechanical using rod or wire and hydraulic using hydraulic type. In general, foot brake adopts hydraulic type. These hydraulic brakes have a disc type and a drum type in structure, but in recent years, as a vehicle is speeded up, a disc brake type which has less deterioration in braking force due to heat dissipation and heat deformation is adopted. The disc brake is braked by pads provided on both sides of the brake disc that rotate with the wheel.

The part of the body outside the pad is called a caliper. The caliper has a piston and an oil passage so as to obtain a braking force by pushing the piston toward the pad by pressure of oil generated in the master cylinder.

However, the conventional wire welding apparatus has the following problems.

When the piston operates in the caliper, oil is simultaneously supplied by one flow path. If the flow path is damaged, the piston does not operate and there is a problem in that the brake device malfunctions.

The present invention is to solve the problems of the prior art as described above, to provide a caliper for a braking device that the piston operates safely even if one flow path is damaged.

According to a feature of the present invention for achieving the above object, the braking device caliper of the present invention, the space is formed inside, both sides of the space of the hydraulic cylinder facing each other are formed in the upper and lower two stage housing And a second oil passage connecting the pistons inserted and sliding to the respective hydraulic cylinders, the first oil passage connecting the pair of hydraulic cylinders at the upper end, and the other pair of hydraulic cylinders corresponding to the lower end. It may comprise an oil channel.

The brake caliper according to the present invention has the following effects.

Two pairs of pistons for driving the respective pads on both sides of the disk, and a separate flow path to control each pair to operate and to operate the other pair of pistons using another flow path even if one flow path is broken There is an effect of increasing the stability and reliability of the braking device.

1 is a cross-sectional view showing a caliper for a braking device according to the present invention.

Hereinafter, a preferred embodiment of a caliper for a braking device according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the brake caliper of the present invention has a space S formed therein, and hydraulic cylinders 20 facing each other are formed in two upper and lower stages on both side walls of the space S. A first oil passage 42 connecting the housing 10, the piston 30 inserted and sliding in the respective hydraulic cylinders 20, and the pair of hydraulic cylinders 20 corresponding to the upper end, respectively; It may be configured to include a second oil passage 44 for connecting the remaining pair of the hydraulic cylinder 20 of the lower end.

First, the braking device caliper of the present invention is provided with a housing 10 constituting the body of the caliper. The housing is preferably made of a metal material for durability, and as shown in FIG. 1, a space S is formed therein.

The housing 10 has a space S formed therein, and both side walls corresponding to both sides are formed. The left side may be referred to as the first side wall 12, and the right side may be divided into the second side wall 14.

A disc wheel (not shown) is provided in the space S between the first side wall 12 and the second side wall 14, and is braked by a brake pad driven by the piston 30 to be described below. It can be configured to be made.

Hydraulic cylinders 20 are provided on the first side wall 12 and the second side wall 14, respectively. The hydraulic cylinder 20 serves to provide power so that the brake pad 50 contacts and is spaced apart from the disk wheel by causing the piston 30 to be described below to move by hydraulic pressure.

Four hydraulic cylinders 20 may be provided, the first hydraulic cylinder 22 on the top of the first side wall 12, the second hydraulic cylinder 24 on the top of the second side wall 14, the first side wall ( 12) may be divided into a third hydraulic cylinder 26 at the bottom, and a fourth hydraulic cylinder 28 at the bottom of the second side wall 14.

Each hydraulic cylinder 20 may be provided with a piston 30, as shown in Figure 1, the first hydraulic cylinder 22, the first piston 32, the second hydraulic cylinder 24 In the second piston 34, the third hydraulic cylinder 26 may be provided with a third piston 36, and the fourth hydraulic cylinder 28 may be provided with a fourth piston 38.

A first oil passage 42 is provided in the first hydraulic cylinder 22 and the second hydraulic cylinder 24. The first oil passage 42 has the same distance from the first oil inlet 46 to the first hydraulic cylinder 22 and the second hydraulic cylinder 24, so that the first piston 32 and the The second piston 34 may be driven in the same manner.

In addition, a second oil passage 44 is provided in the third hydraulic cylinder 26 and the fourth hydraulic cylinder 28. The second oil passage 44 is configured at the same distance from the second oil inlet passage 48 to the third hydraulic cylinder 26 and the fourth hydraulic cylinder 28, and the third piston 36 The fourth piston 38 may be driven in the same manner.

This is because, when the second oil channel 44 is not operated in the first oil channel 42 and the second oil channel 44, the first piston 32 and the first piston 32 are formed by the first oil channel 42. This allows the two pistons 34 to be driven so that the brake pads 50 to be described below are brought into contact with and braked at the same pressure on both sides of the disc wheel. Of course, the opposite is true.

Meanwhile, a first brake pad 52 may be provided at the front end of the first piston 32 and the third piston 36. The first brake pad 52 may contact and be spaced apart from the disc wheel according to the driving of the first piston 32 and the third piston 36 to control braking of the disc wheel.

In addition, a second brake pad 54 may be provided at the front end of the third piston 36 and the fourth piston 38. The second brake pads 54 may be contacted and spaced apart from the disk wheel according to the driving of the second piston 34 and the fourth piston 38 to control braking of the disk wheel.

Cutting grooves 52a and 54a may be provided in the first brake pad 52 and the second brake pad 54. As shown in FIG. 1, the cutting grooves 52a and 54a may be provided at the center of the first brake pad 52 and the second brake pad 54. This is to allow heat generated by the frictional force between the brake pads 52 and 54 and the disc wheel to be discharged to the outside through the cutouts 52a and 54a.

In addition, when only one pair of pistons of the pair of the first piston 32 and the second piston 34 and the pair of the third piston 36 and the fourth piston 38 operates, the brake pad ( 52, 54) is bent so that even a part of the brake pad is concentrated pressure is applied to the disc wheel to generate a strong braking force.

Hereinafter, the operation of the brake caliper for braking device according to the present invention having the configuration as described above will be described in detail.

When the braking device is operated, the same amount of oil is supplied to the first oil inlet 46 and the second oil inlet 48, respectively. At this time, the oil introduced through the first oil inlet 46 is supplied to the first cylinder 22 and the second cylinder 24 through the first oil channel 42 to respectively the first piston 32 and the second cylinder. The pistons 34 are driven at equal intervals to move the second brake pads 52.

In addition, the oil introduced through the second oil inlet 48 is supplied to the third cylinder 26 and the fourth cylinder 28 through the second oil channel 44 to respectively form the third piston 36 and the fourth cylinder. The pistons 38 are driven at equal intervals to move the second brake pads 54.

On the other hand, when the first oil passage 42 or the first oil inlet 46 is damaged, the oil flowing through the second oil inlet 48 is the third piston 36 through the second oil passage 44 And the fourth piston 38 are driven at the same interval so that the first and second brake pads 52 and 54 are equally moved in the direction of the disc wheel.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

10: housing 12: first side wall
14: second side wall 20: cylinder
22: first cylinder 24: second cylinder
26: 3rd cylinder 28: 4th cylinder
30: piston 32: first piston
34: second piston 36: third piston
38: fourth piston 42: first oil euro
44: 2nd oil euro 46: 1st oil inlet
48: second oil inlet 50: brake pad
52: first brake pad 54: second brake pad

Claims (3)

A housing having a space formed therein, and a housing having hydraulic cylinders facing each other at two upper and lower sides on both side walls of the space;
Pistons respectively inserted into the hydraulic cylinders and slid;
A first oil passage connecting the corresponding pair of hydraulic cylinders of the upper end; And,
And a second oil flow passage connecting the corresponding remaining pair of hydraulic cylinders of the lower end.
A pair of first hydraulic cylinders and a second hydraulic cylinder facing each other at an upper end of the hydraulic cylinders;
A pair of third and fourth hydraulic cylinders facing each other at the lower end of the hydraulic cylinders;
A first piston provided in the first hydraulic cylinder;
A second piston provided in the second hydraulic cylinder;
A third piston provided in the third hydraulic cylinder;
And a fourth piston provided in the fourth hydraulic cylinder.
The first oil passage, the distance from the first oil inlet, the oil flows from the outside to the first hydraulic cylinder and the second hydraulic cylinder is formed equal,
The second oil passage has the same distance from the second oil inlet, through which oil flows from the outside, to the third hydraulic cylinder and the fourth hydraulic cylinder, so that the first piston and the second piston are the same. Driving at intervals, wherein the second oil passage drives the third piston and the fourth piston, and the piston operates even when oil is not introduced into any one of the first oil passage and the second oil passage. Caliper for braking device. delete The method of claim 1,
A first brake pad provided at front ends of the first piston and the third piston;
A second brake pad provided at the front end of the second piston and the fourth piston;
It is configured to include more
Calibrator for a braking device, characterized in that the incision groove is formed in the center of one or more brake pads of the first brake pad and the second brake pad.

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