Patent ID: 11867245
Assignee: HITACHI ASTEMO, LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An electric parking brake device in which an actuator case of an electric actuator capable of obtaining a parking brake state by pulling a brake cable linked to a parking brake lever is mounted to a back plate of a drum brake having the parking brake lever, wherein:
a through-hole through which the brake cable passes is formed in the back plate,
a connecting tube portion that surrounds the through-hole protrudes integrally from the back plate,
the actuator case is mounted to a mounting tube at certain axial and circumferential positions with respect to the mounting tube, the mounting tube having, at one end in an axial direction, a joint portion formed separately from the back plate, the joint portion joined to the connecting tube portion such that a relative circumferential position of the mounting tube with respect to the connecting tube portion can be selected,
and wherein the mounting tube comprises, in a mentioned order from one end of the connecting tube portion,
a small-diameter tube portion having the joint portion at the one end of the mounting tube,
an annular step portion,
and a large-diameter tube portion that is formed coaxially and integrally with the small-diameter tube portion via the annular step portion disposed therebetween, the large-diameter tube portion having an open end,
wherein the actuator case is inserted into and engaged with the large-diameter portion from the open end,
a locking recess is formed in at least one position of the mounting tube, the locking recess is formed by cutting a part in the circumferential direction of the large-diameter tube portion, and
the locking recess is formed so as to pass through an inner surface and an outer surface of a peripheral wall of the large-diameter tube portion.