| 摘要 |
A vehicle braking system is disclosed in which the brakes are hydraulically actuated by the conventional master cylinder and optionally may be mechanically actuated by the usual lever arrangement. A valve is disposed in the fluid conduit interconnecting the master cylinder and the brake and the master cylinder reservoir. The valve is responsive to actuation of the mechanical actuator to shift from a first position preventing communication to the reservoir to a second position preventing communication from the master cylinder into the valve and venting the brakes to the reservoir. |
