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:
Nov. 11, 2014
Filed:
Apr. 30, 2012
Augusto E. Barton, Palo Alto, CA (US);
William Randall Fong, Hayward, CA (US);
Gary Allen Pinkley, Union City, CA (US);
Edwin Marcum Pearce, Jr., San Francisco, CA (US);
Kunio Morisawa, Toyota, JP;
Kazunori Kaneko, Toyota, JP;
Koichi Tanaka, Okazaki, JP;
Augusto E. Barton, Palo Alto, CA (US);
William Randall Fong, Hayward, CA (US);
Gary Allen Pinkley, Union City, CA (US);
Edwin Marcum Pearce, Jr., San Francisco, CA (US);
Kunio Morisawa, Toyota, JP;
Kazunori Kaneko, Toyota, JP;
Koichi Tanaka, Okazaki, JP;
Tesla Motors, Inc., Palo Alto, CA (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);
Abstract
A park lock of a transmission, including a park gear; a park pawl rotating about a pawl shaft, the park pawl having a pawl portion locking the park gear, the park pawl including a cam contact portion; a park rod responsive to an operation of a controller, the park rod having a cam portion pressing the cam contact portion to have park pawl engage the park gear; a park sleeve receiving the cam portion and defining a first contact point providing a reactive force to the cam contact portion of the park pawl pressing against the cam portion at a second contact point; a pawl torsional spring biasing the park pawl towards disengagement; and a pawl stopper limiting the rotation of the park pawl wherein motions are constrained within a plane of the transmission and components are rotatingly disposed in parallel axis bores in one half of a transmission case.