Sharp Kabushiki Kaisha Corporation

Nec Tokin Corporation

Tokai University Educational System

Union Seimitsu Co., Ltd.

Yoshio Shindoh

Kazuo Sugiyama

Masanobu Tanigawa

Kazunari Yoshida

Tadashi Tashima

Hideo Takaara

Yu Kagami

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

There is provided a fastening component and an appliance having a fastening structure, in which the appliance can be readily disassembled without detaching the fastening component from a structural body. The fastening component is constituted of a head disposed at an end of a shaft, a washer disposed at an end portion of the shaft, and made of a shape-memory member being contractible in a radial direction with the application of heat, and a washer holder formed around an outer circumference of the shaft. The washer holder includes a washer container having a diameter smaller than an inner diameter of the washer when contracted due to application of heat, and a washer locker formed adjacently to the washer container at an end of the washer container opposite to the head and having a diameter greater than the inner diameter of the washer when contracted due to the application of heat.

Fastening component and appliance

Growing community of inventors

Osaka, Japan

Yoshio Shindoh