Patent ID: 8763764
Filing Date: 2014-07-01
Classification: B60T,F16H

Abstract:
1. A locking apparatus for a parking brake comprising: a parking lever; a parking lever spring applying a restoring force to the parking lever; a cylinder including an oil hole formed therein; a piston comprising a piston rod connected to the parking lever and a piston main body disposed within the cylinder, and the piston movable along a length direction of the cylinder according to supplying or releasing of oil through the oil hole; a solenoid valve; and a locking unit disposed within the cylinder for unlocking the piston when the solenoid valve is supplied with electric power and for locking the piston when the solenoid valve is not supplied with electric power; wherein the locking unit comprises: wherein a stepped portion is formed to the piston main body for the protrusion to be selectively locked thereto.