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:
Dec. 06, 2022
Filed:
Aug. 23, 2019
Unipres Corporation, Yokohama, JP;
Jatco Ltd, Fuji, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Nobuhiko Furuya, Fuji, JP;
Ryuta Mori, Fuji, JP;
Mitsuyoshi Tako, Fuji, JP;
Daisuke Nakahara, Fuji, JP;
Koshi Asao, Fuji, JP;
Daisuke Usui, Fuji, JP;
Takumi Watanabe, Fuji, JP;
Yasuhiro Ishikawa, Fuji, JP;
Abstract
The present invention relates to a lock-up clutch of a torque converter. A cover () is separated to a pilot () and includes an opening (-) for installing the pilot (). Before assembling a clutch driving portion such as a piston, a separator, drive plates, a seal ring, and driven plates, to the pilot (), rivets () are press-fitted into the pilot (), the cover () is abutted to respective head portions of the rivets (), and the pilot () is installed in the cover () and is fixed to the cover () by welding. Thereafter, the piston, the drive plates and the driven plates are disposed between the separator and the cover (), the seal ring is contact with the separator, the separator is press-fitted into projection ends of the rivets (), and then projection portions (-) of the rivets () are crimped.