Nissan Motor Company Limited

Jatco Corporation

Unipres Corporation

Yasuhiro Ishikawa

Takumi Watanabe

Nobuhiko Furuya

Mitsuyoshi Tako

Daisuke Nakahara

Koshi Asao

Ryuta Mori

Daisuke Usui

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.

Lock-up clutch for torque converter

A transmission includes: a torque converter; a transmission input shaft; a seal member sandwiched between the hollow shaft and the transmission input shaft; and a bush, the transmission input shaft including a large diameter portion abutted on the seal member, and a small diameter portion which is positioned on the tip end side of the large diameter portion, and which has a diameter smaller than a diameter of the large diameter portion, the seal member having a diameter larger than a diameter of the bush, and the small diameter portion having an axial length set to be longer than a length from an insertion inlet of the transmission input shaft of the bush to the seal member.

Transmission, and manufacturing method for same

Growing community of inventors

Fuji, Japan

Yasuhiro Ishikawa