Honda Giken Kogyo Kabushiki Kaisha

Tomotsugu Takahashi

Yoshiharu Watabe

Yuji Narusaki

Takehisa Kimura

Katsuyuki Nakajima

Masao Nitta

Hiroaki Yamagishi

Yoriyuki Watanabe

Toru Nagakura

Masahiko Yamauchi

An apparatus for correcting the circumferential length of a metal ring has a drive rollerand a driven rollerpositionable closely to each other for training a metal ring W therearound, and a correcting rollerdisposed between the drive rollerand the driven roller. The apparatus also has a first displacement applying unit for displacing the drive rollerand the driven rolleraway from each other when the metal ring W is trained around the drive roller, the driven roller, and the correcting roller. The apparatus further includes spacersfor spacing the drive rollerand the driven rollera predetermined distance from each other when the drive rollerand the driven rollerare released from being displaced, a second displacement applying unitfor displacing the correcting rollerin a direction perpendicular to the direction in which the drive rollerand the driven rollerare displaced and also to extend the metal ring W, thereby to correct the circumferential length of the metal ring W, and a third displacement applying unitfor displacing the drive rollerand the driven rollertoward each other when the drive roller, the driven roller, and the correcting rollerare released from being displaced by the first and second displacement applying units

Device for correcting circumferential length of metal ring

A drum slicing apparatus is capable of highly accurately and efficiently slicing a drum made of a thin metal sheet which is relatively highly flexible. The drum slicing apparatus has a support shaft rotatable about its own axis, a cylindrical drum holder supported on the support shaft for holding the drum by pressing engagement with an inner circumferential surface of the drum over an entire length thereof, and a slicing device having slicing edges for slicing the drum into the metal rings by engaging and cutting into the drum at predetermined cutting positions thereon while the drum is being rotated by the support shaft through the drum holder.

Cutting device for sheet metal drum

A laminated ring is manufactured by severing a cylindrical drum, which comprises a sheet of maraging steel with welded opposite ends, into a plurality of rings of predetermined width, rolling the rings to a predetermined target circumferential length, correcting circumferential lengths of the rings, aging and nitriding the rings, and laminating the rings into a laminated ring for transmitting power in a continuously variable transmission. A load applied to a circumferential edge of each of the rolled rings and a load applied to another circumferential edge thereof are measured while supporting an inner circumferential surface of the ring and applying a tensile load in a direction to expand the ring. The difference between circumferential lengths of the circumferential edges of the ring is detected based on the difference between the loads applied to the circumferential edges when the difference between the loads is maximum.

Method of manufacturing laminated ring and apparatus for measuring circumferential length difference of ring in such method

Growing community of inventors

Sayama, Japan

Tomotsugu Takahashi