LOCK DEVICE FOR PARKING BRAKE

摘要

PROBLEM TO BE SOLVED: To provide a lock device for a parking brake can maintaining a speed change mode in a state of a power supply not being supplied during off of starting and preventing discharge of a battery.

SOLUTION: The lock device for a parking brake includes: a parking lever; a parking lever spring for providing restoring force to the parking lever; a cylinder formed with an oil hole; a piston rod connected to the parking lever; a piston having a piston body provided inside the cylinder and movable along the longitudinal direction of the cylinder by supply or discharge of oil through the oil hole; a solenoid valve; and a lock mechanism for releasing locking of the piston when the power source is applied to the solenoid valve and locking the piston when the power supply applied to the solenoid valve is released.

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