Drum brake

Details Drum brake Drum brake

1991-02-27

1992-07-28

Peters, Jr., Joseph F.

Brakes

Wheel

Transversely movable

188325, 188 78, F16D 5100

Patent

active

051334305

ABSTRACT:
A drum brake includes a pair of brake shoes which are provided such that when expanded, they are forced against a brake drum to generate a braking force, a strut which is received in notches formed in the respective webs of the brake shoes so as to extend therebetween, a parking lever which is rotatably supported on either one of the brake shoes such that when rotated, it engages the strut to expand the brake shoes, and a coil spring which is loaded between the strut and the notch formed in the web of the other brake shoe to bias the strut toward the first brake shoe. The notch in the web that is engaged with the strut includes a first notch portion that is formed by cutting the outer peripheral portion of the web and a second notch portion that is formed by further cutting the web at the bottom of the first notch portion at the approximately central portion thereof in the direction of the width of the notch. The strut is engaged with a surface of the web defining the bottom of the second notch portion and one end of the coil spring is engaged with another surface of the web defining the bottom of the first notch portion. Accordingly, the coil spring will not contact the edges of the web due to backlash of the strut, so that the coil spring is prevented from being broken.

REFERENCES:
patent: 3162273 (1960-05-01), Burnett
patent: 4344512 (1982-08-01), Woo

Affiliated with

Also associated with

Rating

Drum brake does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drum brake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drum brake will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1682776