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. 05, 2015
Filed:
May. 23, 2012
Souichirou Sumida, Wako, JP;
Shuji Ichijo, Wako, JP;
Toru Yagasaki, Wako, JP;
Yukio Yuzawa, Saitama, JP;
Kazuhiko Isoe, Saitama, JP;
Souichirou Sumida, Wako, JP;
Shuji Ichijo, Wako, JP;
Toru Yagasaki, Wako, JP;
Yukio Yuzawa, Saitama, JP;
Kazuhiko Isoe, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
G-Tekt Corporation, Saitama-shi, JP;
Abstract
An oil hole penetrating through a partition wall of a pulley cover of a continuously variable transmission is formed in a direction perpendicular to an axis of the pulley cover. The pulley cover, having first and second hydraulic oil chambers through which a movable pulley half of a pulley of the continuously variable transmission is biased toward a fixed pulley half thereof, is manufactured in the step of machining a metal sheet. The manufacturing step includes a first step of press-forming the annular partition wall of the pulley cover, a second step of opening the oil hole in the partition wall, the oil hole allowing communication between the first and second hydraulic oil chambers, and a third step of press-forming the peripheral wall of the second hydraulic oil chamber at an outer side, in a radial direction, of the partition wall.