Jtekt Corporation

Toyoda Koki Kabushiki Kaisha

Toyota Jidosha Kabusiiiki Kaisiia

Toyota Jidosha Kabushiki Kaisha

Yutaka Inada

Hiroaki Suzuki

Akira Yamashita

Koji Nishi

Kazushi Numazaki

Eiji Okawachi

Kazuhisa Sugiyama

Katsuhiko Takeuchi

Yoshinori Imoto

Hideki Iwai

Tomohisa Katou

A valve main unit, in which a high pressure valve is to be provided, includes a channel for hydrogen gas. An internal surface of the channel is constituted by an oxidation layer formed by performing anodizing on an aluminum-based alloy. The oxidation layer of the channel is formed by performing the anodizing under a condition in which the oxidation layer with a thickness of 8 &#x3bc;m or less is formed at an external surface of the valve main unit, the external surface having an opening communicating with the channel.

Valve main unit and method of manufacturing the same

A valve device includes a wire channel through which wires are routed from the inside of a gas tank to the outside of the gas tank, and a hermetic connector in which a sealing member is provided around wire pins that constitute part of the wires is provided in the wire channel. In addition, the wire channel has multiple (two) bent portions formed on the outer side of the hermetic connector. When pulling force acts on the wires from the outside, stress concentration portions are formed in the wires at these bent portions.

Valve device

A machine tool includes X-axis, Y-axis, and Z-axis moving units for producing relative movements between a tool and a workpiece; a C-axis drive unit for rotating the workpiece about a C-axis parallel to the Z-axis; and a B-axis turning unit for turning the tool about a B-axis parallel to the Y-axis. The tool is disposed in such a manner that a machining point of the tool coincides with the B-axis. The moving units, the drive unit, and the turning unit are controlled in such a manner that a work point of the workpiece coincides with the machining point of the tool. The bed is formed through casting and has a hollow structure and a hole as cast; and a cover is provided to cover the hole as cast in order to close the interior of the bed.

Machine tool and bed structure thereof

Growing community of inventors

Kariya, Japan

Yutaka Inada