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. 27, 1982
Filed:
Nov. 26, 1979
Tsutomu Chuwman, Toyota, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
An anti-rusting structure of an adjust mechanism in a drum brake, which mechanism functions to compensate stroke increasing of the brake system due to wearing of the brake shoes, for preventing production of rust between an adjust bolt and an adjust nut by means of a skillful water proof device by facilitating the greasing between the two members of the adjust mechanism. In a portion of the adjust bolt where external thread (male screw) is formed, at least one lengthwise groove is axially formed, the length of which groove is determined such that the adjust bolt may not be pushed out by compressed air between the two members, even when the adjust bolt is threaded into the adjust nut by a predetermined amount of length, with sufficient grease being spread between the two members.