ELECTRIC PARKING BRAKE APPARATUS

摘要

The present invention relates to an electric parking brake apparatus. According to an embodiment of the present invention, a worm shaft is formed with a first protrusion, a rotating member is formed with a second protrusion, and after the rotating member rotates by a preset rotation angle, the first protrusion of the worm shaft contacts the second protrusion of the rotating member so that the worm shaft cannot rotate any more, thereby preventing a gear jam due to over-release of the rotating member.

主权项

1. An electric parking brake apparatus comprising:
a worm shaft coupled to a motor shaft and formed with first gear teeth on an outer peripheral surface thereof and a first protrusion on the outer peripheral surface thereof on a side of the motor shaft; and a rotating member formed on an outer peripheral surface thereof with second gear teeth engaged with the first gear teeth to rotate about a hinge according to rotation of the worm shaft, and on the outer peripheral surface thereof with a second protrusion that contacts the first protrusion to restrict the rotation of the worm shaft such that the rotating member does not rotate any more after rotating about the hinge by a predetermined angle.