Title:
DRUM BRAKE DEVICE
Document Type and Number:
Japanese Patent JP2014132181
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To adopt a common brake lining, restrain increase of the number of components, and avoid a risk of wrong assembly by pressurizing an L-side brake shoe and a T-side brake shoe to a brake drum with a large force to generate a high braking force, and uniformly abrading both of the brake shoes.SOLUTION: The drum brake device 100 according to the present invention includes: a cylindrical brake drum 110; a pair of brake shoes 130, 130' pressurized to an inner periphery 110A of the brake drum 110; and a cam 150 rotated around a rotary driving shaft 151 to drive a tip side of each brake shoe to be enlarged. A characteristic of the cam 150 is made different on a side for driving the brake shoe 130' on a leading side from that on a side for driving the brake shoe 130 on a trailing side.
Inventors:
OGAWA ETSURO
Application Number:
JP2013000477A
Publication Date:
July 17, 2014
Filing Date:
January 07, 2013
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
F16D51/22; F16D65/14; F16D65/22
Domestic Patent References:
| JPS4736067A | ||||
| JPS4946023B1 | 1974-12-07 | |||
| JPS502791B1 | 1975-01-29 |
Foreign References:
| US4260042A | 1981-04-07 |
Attorney, Agent or Firm:
Kiyohiko Susumu