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. 15, 2009
Filed:
Oct. 12, 2006
Hiroaki Tsuzuki, Toyota, JP;
Takumi Uno, Toyota, JP;
Toshiro Takeshima, Toyota, JP;
Toyoda Iron Works Co., Ltd., Aichi-ken, JP;
Abstract
A parking brake operating apparatus (), comprises (a) a supporting member () disposed integral with a vehicle, (b) an operating member () disposed in the supporting member to pivot about a first axis, and actuates a parking brake by a braking operation from an initial position thereof, (c) a ratchet () having many engaging teeth () formed along an arc centering on the first axis, and disposed in the supporting member integrally therewith, and (d) a pawl () disposed in the operating member, riding over the many engaging teeth during the braking operation of the operating member, and engaging with the teeth in the brake actuating position of the operating member to prevent returning pivotal movement of the operating member toward the initial position side for maintaining an actuating state of the parking brake. In such parking brake operating apparatus, (e) a first engaging tooth () in the many engaging teeth of the ratchet over which the pawl rides first during the braking operation of the operating member from the initial position is determined higher in a height than other engaging teeth ().