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:
Sep. 23, 1980
Filed:
Sep. 28, 1978
John L Turak, South Bend, IN (US);
The Bendix Corporation, Southfield, MI (US);
Abstract
A drum brake includes a backing plate with an anchor for pivotally engaging one end of a pair of brake shoes. A hydraulic actuator is engageable with the other end of the pair of brake shoes and is operable to move the pair of brake shoes from a rest position to a braking position. An extendible strut extends between the pair of brake shoes to limit the retraction of the pair of brake shoes upon termination of a braking application. A lever is pivitally coupled to one of the brake shoes and a pawl is pivotally coupled to the other brake shoe. The pawl and lever are releasably interlocked with their respective brake shoes via hooks which are received in slanted slots or openings. A resilient member cooperates with the pawl to retain the latter in engagement with the extendible member and also cooperates with the pair of brake shoes to urge the same into engagement with the hydraulic actuator. The extendible member engages the pair of brake shoes at an intermediate portion and the pivotal coupling between thelever and one brake shoe and the pawl and other brake shoe is disposed at a location between the intermediate portion and the other end of each brake shoe.