Honda Motor Co., Ltd.

Nobuhiro Asai

Koji Saito

Takashi Yoshida

Satoshi Kaneko

Satoru Uchiumi

Fumio Sato

Daisuke Koshino

Satoshi Kanbayashi

Toshiya Hirata

Masahiko Masuzaki

Masaharu Kitafuji

Tsuyoshi Kubota

A manufacturing apparatus, of a grinding stone which is manufactured by attaching abrasive grains respectively having polyhedral shapes in which mutually opposed surfaces are parallel to each other to a base member, is provided with: an abrasive grains classifying apparatus adapted to classify the abrasive grains based on sizes of the abrasive grains defined by face-to-face distances between the mutually opposed surfaces; and an attaching apparatus adapted to attach the abrasive grains classified by the abrasive grains classifying apparatus to the base member. The attaching apparatus is provided with: a template which is disposed above the base member to be movable with respect to the base member and formed with a guide hole through which the classified abrasive grains pass; a vibration generator connected to the template or the base member and adapted to apply a vibration to the abrasive grains passing through the template; and an electrolytic deposition bath adapted to electrolytic deposit the abrasive grains passing through the template.

Grinding stone, manufacturing method of grinding stone, and manufacturing apparatus of grinding stone

A method includes a grinding step of forming the shape of a contact surface, a grooving step of roughening the shaped contact surface to form grooves therein, and a contact surface lapping step of lapping the contact surface having the grooves with a lapping film to form oil grooves for holding a lubricant oil. The surface roughness of the contact surface is such that the maximum height roughness Rz is 4 &#x3bc;m or less, the mean length RSm of the roughness profile elements is 30 to 60 &#x3bc;m, the skewness Rsk of the roughness profile is &#x2212;2.7 to &#x2212;0.6 (no unit), the reduced peak height Rpk is 0.09 &#x3bc;m or less, and the reduced valley depth Rvk is 0.4 to 1.3 &#x3bc;m.

Method for producing pulley for belt-type continuously variable transmission

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Tochigi, Japan

Nobuhiro Asai