Manually operated release and the spring operation type parking braking system which possesses the re-operation system

摘要

Manually operated release and it is the spring operation type parking braking system which possesses the re-operation system. The gearbox which is locked vis-a-vis the rear wall of the cylinder has had the manually operated crank. Passing by the cylinder and the gearbox, in order the push rod which extends, to supply brake force, it is concatenated. The collet of the screw attachment which encircles the spiral condition screw thread on the push rod, has had the tooth part whose it is possible to spread to radial pattern, with flexibiility. When the gearbox cranked was manipulated by hand, the push rod turns, the push rod moving to axial direction due to the interaction of the screw thread inside the collet and the screw thread on the push rod, the brake release or re-operates.