Nippon Steel Chemical Co., Ltd.

Other

Hiroshi Aida

Ryohei Hazawa

Yutaka Kitamura

Takashi Kinoshita

Hisanori Kato

Haruhiko Yoshizaki

Shoichi Hamada

Takamitsu Hosoyama

A one-way clutch therein which comprises an inner diameter side member fixed to an end of a rotary shaft, an outer diameter side member disposed around the inner diameter side member, a one-way clutch disposed between a middle part in the axial direction on the outer peripheral surface of the inner diameter side member and a middle part in the axial direction on the inner peripheral surface of the outer diameter side member, and a pair of support bearings disposed between the outer peripheral surface of the inner diameter side member and the inner peripheral surface of the outer diameter side member at a position to pinch this one-way clutch from the both sides thereof in the axial direction for allowing a relative rotation between the inner diameter side member and the outer diameter side member while supporting a radial load applied on this outer diameter side member.

Rotation transmitting device incorporating one-way clutch therein

Injection molding method for preventing formation of surface defects and

When injection-molding a molten thermoplastic resin into a molding having different thicknesses, a void inducing member is set in a cavity corresponding to heavy sections. Then gas pressure is applied passing through a gas passageway to a tip end of the void inducing member, thus forming a void nucleus in the resin adjacent to the tip end of the void inducing member. The void nucleus develops to a void by shrinking force of the resin as the molten resin cools.

Mold for injection molding a thermoplastic part free from sink marks

Injection molding method for manufacturing a thermoplastic part free

An expansion injection molding die having a plate forming the die cavity, a backup plate, a core plate, ejector pins inserted through the backup plate and the core plate for separating the molded products from the die cavity, and a gas introducing passage communicating with the pressurized gas source for introducing gas into the die cavity. The plate that has holes through which the ejector pins are injected are formed with hollow portions. In each of the hollow portions, a guide ring is installed so that it is freely movable at least two-dimensionally. A sealing member is installed in an expanded hole portion in the guide ring so that it is in sliding contact with the ejector pin.

Expansion injection molding die

Growing community of inventors

Kanagawa-ken, Japan

Hiroshi Aida