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

Claim 8:
9. In combination, a brake back plate and an electric parking brake device,
the back plate comprising a main plate body having a through-hole formed therein, and a connecting tube portion that surrounds the through-hole and protrudes integrally from a rear surface of the main plate body,
the electric parking brake device comprising:
an actuator having an actuator case,
a brake cable operatively attached to the actuator, and
a mounting tube disposed between the actuator case and the connecting tube portion, the mounting tube comprising, in a mentioned order from one end of the connecting tube portion, a small-diameter tube portion having a first diameter, an annular step portion, and a large-diameter tube portion which is formed coaxially and integrally with the small-diameter tube and has a second diameter greater than the first diameter, the annular step portion disposed between and interconnecting the large-diameter tube portion and the small-diameter tube portion, wherein the small-diameter portion has a joint portion at one end in an axial direction, and
wherein the large-diameter tube portion has an open end, and the actuator case is inserted into and engaged with the large-diameter portion from the open end, and
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;
the locking recess is formed so as to pass through an inner surface and an outer surface of the peripheral wall 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.