VALVE FOR SELECTIVELY RETAINING BRAKE PRESSURE

摘要

An automobile brake device comprising a control valve for controlling the flow of a working medium between a master braking unit and a wheel braking unit, the control valve having a passage for the working medium to flow through and a plunger for selectively opening and closing the passage, the plunger being provided with a toggle lever and a spring to resiliently urge the plunger into a open or closed position, the toggle lever being operable by hand to open and close the passage for the working medium, so as to facilitate the braking and the releasing of the brakes of an automobile while driving on a slope.