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:
May. 22, 2001
Filed:
May. 01, 2000
Seiji Asai, Okazaki, JP;
Yasushi Kobayashi, Nagoya, JP;
Nisshinbo Industries, Inc., Tokyo, JP;
Abstract
A drum device is provided that functions as a very stable leading-trailing (LT) type when the service brake is applied, and as a highly effective duo-servo (DS) type with very little fluctuation in stroke when the parking brake is applied, in which strange noises are not generated, and any impact load is not applied to any of the components, thus enabling a lighter device. A shoe clearance adjustment device (,), adjacent to a service brake actuator (,) is suspended between the two brake shoes (,). A parking brake actuator (,) is adjacent to an anchor (,). The middle segment of a long link (,) is pivotable in the middle of the one brake shoe (,). The ends of the link are functionally engaged with the shoe clearance adjustment device (,) and the parking brake actuator (,), respectively. The parking brake actuator (,) is equipped with a stroke adjustment device.