Honda Motor Co., Ltd.

Seiichi Minegishi

Yoshiharu Watabe

Toru Yagasaki

Katsuyuki Nakajima

Hideaki Aoyama

Yuichi Nagao

Yasuo Watanabe

Masaomi Saruyama

Yoshiyuki Minowa

Fumitaka Haga

Tetsuo Suzuki

Takeshi Yoshimura

Shinichi Kuriyama

Masashi Takagaki

Tsutomu Maruyama

Provided are a conveying jig, a method of manufacturing the conveying jig, and a method of heat-treating metal rings using the conveying jig. The conveying jig is provided with a base and ten holding shafts raised from the base. Ridges and grooves are alternatively provided in the side wall of each holding shaft. The metal rings are held in position by being engaged in the grooves in the holding shafts. The space enclosed within the holding shafts is communicated with the atmosphere, and this allows, when the metal rings held by the conveying jig are subjected to heat treatment in a heat treatment furnace, an atmospheric gas to circulate in the space enclosed within the holding shafts.

Conveying jig, method of manufacturing conveying jig, and method of heat-treating metal rings using conveying jig

There are disclosed a method and device for polishing a metal ring, which is capable of polishing a side edge of the metal ring without performing barrel polishing or polishing by grinding stones. Subsequently to a projecting step of projecting a metal ring W by clearing means, a first brush polishing step of polishing one edge of the metal ring W by a polishing brushis performed. Subsequently, an inverting step of inverting the metal ring W whose one edge is polished by the first brush polishing step is inverted by the inverting meansis performed. Subsequently, a second brush polishing step of polishing the other edge of the metal ring W which is inverted by the inverting step by the polishing brushis performed. Moreover, a clearing step of clearing the metal ring whose other edge is polished by the second brush polishing step by clearing meansis performed.

Method and device for polishing endless belt metal rings for continuously variable transmission

A circumferential length correcting method for a metal ring including: a circumferential length measuring step of passing the metal ring around a driving roller and a driven roller, displacing the driving roller and the driven roller away from each other, and measuring the actual circumferential length of the ring under tension; and a circumferential length correcting step of correcting the circumferential length of the ring by displacing a circumferential length correcting roller by a predetermined distance in a direction in which the metal ring is extended. The method is capable of imparting an appropriate arc shape to the metal ring while correcting the circumferential length to fall within an appropriate value range. Before the circumferential length correcting step, the method includes an arc-shape imparting step of displacing an arc-shape imparting roller, which has an arc-shaped circumference and is positioned inside a metal ring, by a predetermined distance in a direction in which the metal ring is extended, thereby imparting an arc shape conforming to the shape of the circumference of the arc-shape imparting roller to the metal ring.

Circumferential length correcting method and apparatus for metal ring

Growing community of inventors

Sakado, Japan

Seiichi Minegishi