Abstract: A screw attachment (10, 10?, 10?) disposed around a fastening piece (17) secured to a main fastening body (25a), the screw attachment sandwiched between a head (17b) of the fastening piece and a securing object (22) 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 (12, 13) 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.

Abstract: A screw attachment (10, 10?, 10?) disposed around a fastening piece (17) secured to a main fastening body (25a), the screw attachment sandwiched between a head (17b) of the fastening piece and a securing object (22) 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 (12, 13) 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.

Abstract: 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.

Abstract: 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 4 disposed at an end of a shaft 3 and having a diameter greater than that at the end of the shaft 3, a washer 2 disposed at the end of the shaft 3, and made of a shape-memory member having an outer diameter before heating greater than a diameter of the head 4 and being contractible in a radial direction with the application of heat, and a washer holder formed along a circumferential direction on a circumference at the end of the shaft 3, for holding the washer 2 contracted in the radial direction with the application of the heat.

Abstract: A screw attachment (10, 10′, 10″) disposed around a fastening piece (17) secured to a main fastening body (25a), the screw attachment sandwiched between a head (17b) of the fastening piece and a securing object (22) 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 (12, 13) 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.