Union Seimitsu Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Nec Tokin Corporation

Tokai University Educational System

Sanohatsu Co., Ltd.

Tadashi Tashima

Kazuo Sugiyama

Masanobu Tanigawa

Kazunari Yoshida

Hideo Takaara

Yoshio Shindoh

Masaki Nezu

Yu Kagami

Toshiyuki Nishimura

A head fixing mechanism includes a fixture fixed to a trunk portion and a coupling member which is threadably engaged with a fixture. The coupling member includes a main body which has a head portion that presses a head and a shaft portion that is threadably engaged with the fixture, and in which an axially extending insertion hole is formed, and an insertion member which is threadably engaged with the main body within the insertion hole. A bottom of the insertion hole is formed in the shaft portion, and in the shaft portion, a slit having a width smaller than the inside diameter of the insertion hole is formed, which divides the shaft portion in a circumferential direction. The insertion member is formed in a tapered shape, and the outside diameter of the leading end thereof is formed to be smaller than the width of the slit.

Head fixing mechanism of drum

A screw attachment (&#x2033;) disposed around a fastening piece () secured to a main fastening body (), the screw attachment sandwiched between a head () of the fastening piece and a securing object () so that the screw attachment bears a securing force of the fastening piece to press the securing object. The screw attachment includes a pair of arms () made of a shape restoring material. Each arm has a fore end, and the fore ends are joined to each other with an adhesive material that is softened when heated. The arms expands radially such that the screw attachment is released from the head of the fastening piece when heat or force is applied to the arms.

Screw attachment, fastening assembly having screw attachment, and process of releasing fastening assembly

Growing community of inventors

Kanagawa, Japan

Tadashi Tashima