| 摘要 |
<p>The present invention relates to a hydraulic safety brake apparatus for a bicycle, and if a front wheel brake lever is pulled, a rear wheel brake is operated at the same time to prevent a safety accident such as a bicycle rollover or the like due the operation of only the front wheel brake. The hydraulic safety brake apparatus for a bicycle comprises: a front wheel hydraulic path transmitting a pressure generated by the working of the front wheel brake lever to the front wheel brake; a rear wheel hydraulic path formed to be spaced from the front wheel hydraulic path, transmitting the pressure generated by the working of a rear wheel brake lever to the rear wheel brake; a piston formed in close contact with a piston working path interconnecting the front wheel hydraulic path and the rear wheel hydraulic path, being elastically moved to the rear wheel hydraulic path by the working pressure of the front wheel brake lever; and a switching pin opening and closing the piston working path in order to regulate the working pressure of the front wheel brake lever transmitted to the piston on the outside of a safety actuator. In a state of opening the switching pin where the front wheel brake lever is only operated, the pressure of the front wheel hydraulic path is transmitted to the rear wheel hydraulic path by the operation of the piston.</p> |
