JPS60575B2 - disc brake device - Google Patents

Abstract

PURPOSE:To prevent any trouble due to the damage of a casing, by integrating a master cylinder etc. in a caliper body and coupling the master cylinder to a brake operating member.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention primarily relates to a disc brake device for motorcycles and other two-wheeled vehicles.

Conventionally, this type of device has a caliper cylinder that receives pressure oil as the master cylinder operates in response to a brake lever, brake pedal, or other brake operator, and a caliper cylinder that is pushed by the pressure oil in the cylinder and moves toward the closing side. There is a type of caliper in which a pair of left and right pads on both outside sides of a brake disc are installed inside the caliper body. Generally, the caliper cylinder is located in a separate position above the main body and is connected to the caliper cylinder in the main body via a relatively long brake hose. In addition, the master cylinder and oil reservoir require a relatively large amount of space for their installation;
Furthermore, there are other inconveniences such as troublesome installation work.

The object of the present invention is to provide a device that does not have the above disadvantages, and is designed to provide a caliper cylinder that receives pressurized oil in response to the operation of a master cylinder that responds to brake levers, brake pedals, and other brake operating elements. , a type in which a pair of left and right pads on both sides of a brake disc that are pushed by the oil in the cylinder to close each other are provided in the caliper body, the master cylinder and the oil flowing therein. The caliper is characterized in that a reservoir is disposed within the caliper body, the brake operating element is provided separately from the caliper body, and the piston within the master cylinder is connected to the brake operating element via a brake wire or the like.

An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawings, reference numeral 1 indicates a body frame of a motorcycle or other vehicle, and the body frame 1 is fixed on the rear wheel and has a brake disc 2.
It also has a caliper body 4 supported on the shaft 3 of the wheel, and the caliper body 4 has a torque that extends in front of it. It is supported by the vehicle body frame 1 via the pad 5. In the drawings, reference numeral 6 indicates a brake pedal and other brake operating elements located at the front. The caliper body 4 has a caliper cylinder 8 inside which pressure oil is guided by the operation of the master cylinder 7 that responds to the brake operator 6, and a caliper cylinder 8 that is pushed by the pressure oil in the cylinder 8 and moves toward the closing side. It has a pair of left and right pads 9, 9, and is not particularly different from the conventional one.

According to the present invention, the above-mentioned master cylinder 7 is arranged in the above-mentioned caliper body 4 together with the oil reservoir 10 that extends thereto.

In this case, the master cylinder 7, the gear IJ cylinder 8, the master cylinder 7, and the oil reservoir 10 are connected to the main body 4.
In addition, the master cylinder 7 has a pressure piston 13 in its interior, as is known per se, which piston 13 in its forward position is connected to the main body. 4 and a brake wire 15 extending forward from the lever 14. To explain its operation, when the brake operator 6 is operated, the pressure piston 13 is pushed by the brake wire 15 and the bar 14, causing the master cylinder 7 to operate, causing pressure to be generated in the caliper cylinder 8. The oil is guided and the pads 9, 9 are pushed by the oil and the pads 9, 9 are moved toward the closing side, thereby compressing the brake disc 2 and applying braking to the wheels, and is not much different from the conventional one.

In this way, according to the present invention, the master cylinder and the oil reservoir connected to the master cylinder are incorporated into the caliper body together with the caliper cylinder and others, so that they are integrated into one body.
This is connected to the outside brake operator via a brake wire or the like, which eliminates the use of a brake hose in conventional systems and eliminates failures due to damage to the hose.Furthermore, the master cylinder and oil reservoir can be This eliminates the above-mentioned disadvantages of the conventional caliper provided separately from the caliper body, and has the advantage of simplifying assembly and downsizing the entire caliper.

[Brief explanation of the drawing]

FIG. 1 is a partially removed side view of one example of the device of the present invention, and FIGS. 2 and 3 are enlarged sectional views of each portion thereof. 1... Vehicle body frame 2... Brake disc, 4... Caliper body, 6... Brake operator, 7... Master cylinder, 8... Caliper cylinder, 9... Pad "10
...Oil reservoir, 13...Pressure piston, 15...Brake wire. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. A caliper cylinder that receives pressure oil in response to the operation of a master cylinder that responds to brake operations such as the brake lever, brake pedal, etc., and a brake disc that is pushed by the pressure oil in the cylinder and moves toward the closing side. In a type in which a pair of right and left parts on both outer sides are installed in the caliper main body, the master cylinder and an oil reservoir connected thereto are installed in the caliper main body, and the brake operator is isolated from the master cylinder. A disc brake device characterized in that the piston in the master cylinder is connected to the brake operator via a brake wire or the like.