The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1984
Filed:
Jan. 28, 1982
Vlad Marianu, Ffm.-Griesheim, DE;
ITT Industries, Inc., New York, NY (US);
Abstract
A spot-type disc brake unit which cooperates with a brake disc when in use to form a disc brake includes a brake shoe carrier member and at least one brake shoe carried by the carrier member for axial movement toward and away from the brake disc, and with freedom of limited circumferential displacement upon entrainment of the brake shoe by the brake disc during the braking operation. The brake shoe includes a lining having a friction surface facing toward the brake disc and a backing plate rigid with the lining and having a backing surface facing away from the brake disc, as well as disc entry and disc exit, substantially circumferentially facing, end surfaces. A braking-force bell crank lever is arranged at least at the disc exit end surface of the backing plate. The lever has a first lever arm which extends into the path of circumferential displacement of the brake shoe, and a second lever arm which extends into juxtaposition with a selected region of the backing surface to apply an additional augmenting axial force to the brake shoe at such region. The lever has a fulcrum portion which engages an engagement surface of the carrier member to constitute a pivot axis for the lever therewith during the braking operation. Upon termination of the braking operation, the lever is attracted by a spring to the backing plate to compensate for the diminishment of the thickness of the lining attributable to the wear of the latter.