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:
Aug. 06, 2013
Filed:
Nov. 02, 2009
Toru Takenaka, Saitama, JP;
Makoto Hirano, Saitama, JP;
Hideharu Izumi, Saitama, JP;
Kazuya Kuwabara, Saitama, JP;
Taiji Koyama, Saitama, JP;
Shinichiro Kobashi, Saitama, JP;
Hiroshi Gomi, Saitama, JP;
Masao Sasaki, Saitama, JP;
Toru Takenaka, Saitama, JP;
Makoto Hirano, Saitama, JP;
Hideharu Izumi, Saitama, JP;
Kazuya Kuwabara, Saitama, JP;
Taiji Koyama, Saitama, JP;
Shinichiro Kobashi, Saitama, JP;
Hiroshi Gomi, Saitama, JP;
Masao Sasaki, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In a friction drive device comprising first free rollers and second free rollers contacting each other at the outer circumferential surfaces thereof to frictionally transmit power from the second free rollers to the first free rollers, in order to minimize the slippage between the first and second free rollers, minimize the power loss and cause the first free rollers to move as designed, an outer peripheral part of each first free roller defining an outer circumferential surface thereof has a different stiffness from that of an outer peripheral part of each second free roller defining an outer circumferential surface thereof.