ACTUATOR OF ELECTRIC PARKING BRAKE AND BRAKE CALIPER FOR AUTOMOTIVE VEHICLE AS ONE BODY WITH TWO-STAGE PLANETARY GEAR INTO A MODULE

摘要

PURPOSE: A car caliper integrated electronic parking brake actuator in which 2 shift planetary gear is modulated and which is applied is provided to have the braking power for efficiently controlling the parking brake by inducing the reduction of the friction noise between the gears. CONSTITUTION: A car caliper integrated electronic parking brake actuator in which 2 shift planetary gear is modulated and which is applied comprise a driving unit(10), a relay gear(20), a driving gear(30), and a planetary gear box housing(60). The driving unit is remotely controlled. The relay gear is engaged and rotated with a driving unit pinion(11) of the driving unit. The relay gear relatively has much number of gears with the driving pinion in order to diminish the number of the rotation. The driving gear is engaged and rotated in the relay pinion(21) of the relay gear. The driving gear relatively has much number of gears with the relay pinion in order to diminish the number of the rotation. The planetary gear box housing is transmitted the torque through the first sun gear(31) integrally formed with the driving gear.