초록 ▼

A master cylinder for braking of reduced size and complexity and a method of making a master cylinder. The master cylinder includes a sub-tank for supplying working oil for braking, the sub-tank being integrally connected to a master cylinder main body. A first port and a second port are formed clos

A master cylinder for braking of reduced size and complexity and a method of making a master cylinder. The master cylinder includes a sub-tank for supplying working oil for braking, the sub-tank being integrally connected to a master cylinder main body. A first port and a second port are formed close to one another in a partition wall separating the master cylinder main body from the sub-tank. The sub-tank has a first opening and a second opening. The axes of the first and second ports in the partition wall pass through the first opening in the sub-tank, which allows tools to be inserted through the first opening to form both ports.

대표청구항 ▼

1. A master cylinder for braking attached to a portion of a motorcycle body frame, having a size relatively small compared to the motorcycle body frame, and comprising:a main body, the main body including a master cylinder chamber for receiving a piston and having a longitudinal axis inclined rearwa

1. A master cylinder for braking attached to a portion of a motorcycle body frame, having a size relatively small compared to the motorcycle body frame, and comprising:a main body, the main body including a master cylinder chamber for receiving a piston and having a longitudinal axis inclined rearwardly from a vertical position; a sub-tank connected to an upper rear side of the main body, the sub-tank being displaced upwardly relative to the main body and having a reservoir chamber; a longitudinal axis substantially parallel to the longitudinal axis of the main body; and a partition wall between the main body and the sub-tank, the partition wall including a first port and a second port, the first and second ports providing fluid communication between the master cylinder chamber and the reservoir chamber, wherein the sub-tank is connected to the main body to supply working oil to the main body for braking, wherein the longitudinal axis of a union bolt which connects the end of a brake hose to the master cylinder is shifted in a direction opposed to the side on which the sub-tank is integrally provided on the master cylinder main body.