APPARATUS FOR BLOCKING THE POWER OF COILLESS CLUTCH

摘要

PURPOSE: A power transmission blocking device of a coilless clutch is provided to enable a coilless clutch to be recycled and to reduce the maintenance cost since a blocking member rotates and blocks a power transmission line even if the overload beyond a torque limit is applied to an air conditioning device. CONSTITUTION: A power transmission blocking device of a coilless clutch comprises a pulley(20), a hub(10), a plurality of blocking members(40) and a disc(30). The pulley is connected to a rotary shaft of an internal combustion engine through a belt or a chain and rotates at the same time. The hub is held in the inner space of the pulley and the rotary shaft of an air conditioning device is connected to the hub. The disc is mounted on the hub and the circumferential surface of the disc makes contact with the inner circumferential surface of the pulley. The blocking members are mounted on the outer surface of the pulley and are connected to the disc in a sill hanging manner. The blocking members selectively disconnect the pulley and the power transmission line of the disc.