25-06-2015 дата публикации
Номер: KR1020150070653A
Принадлежит:
In a braking drag deduction type brake device of the present invention, a caliper (1), including an electromagnet (20-1), exchanging gravitation and repulsion with a permanent magnet (20-1) fixed in a piston (7) through the direction switch of power supply, and a fixed sensor (31-1) which is fixed to the piston (7) and detects a fall of signal intensity for an increase in the intensity of current supplied to the electromagnet (20-1) when a distance with the fixing sensor (31-1) increases, is included. Thus, strong repulsion is formed by applying repulsion to the piston with oil pressure when braking is performed, and the reduction of braking drag is performed with a quick return to an initial position using gravitation when the piston returns, and especially, as a movement distance of the piston is always kept constant by applying the repulsion, strengthened as much as an increase in pad abrasion, braking drag torque is hardly changed even after the endurance progress of the pad. COPYRIGHT ...
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