| 摘要 |
PROBLEM TO BE SOLVED: To provide a bicycle liquid pressure brake device in which a brake failure due to an increase in temperature of brake liquid is avoided.SOLUTION: This invention relates to a bicycle liquid pressure brake device 100 that is operated in such a way that when an operator holds a brake lever H, brake liquid flows from an oil supply part 1 in one direction to an oil chamber 22 of a liquid pressure cylinder part 2, a piston lever 21 at the liquid pressure cylinder part is pushed out due to an increased pressure in the oil chamber to a pushing-out position, a brake part 4 cooperates with the piston lever and moves to a braking position to be braked. When the operator releases the brake lever, the brake liquid flows in one direction from the oil chamber of the liquid pressure cylinder part to an oil storage tank 3, the piston lever is returned from the pushing-out position to a drawing-in position and the brake liquid flows in one direction from the oil storage tank to the oil supply part through the cycle check valve 311.SELECTED DRAWING: Figure 1 |
