| 摘要 |
A slider (1) for a slide fastener is constituted by three members including a body (2), a pull tab (3) and a cover (4) for pull tab attachment, a concave fitting groove (11) capable of accommodating the lower end face of the cover (11) is provided on the upper surface of the body (2), a welding projection (25) to be protruded outward is provided in a part of the surface of the lower end face (21) of the cover (4) or a part of the bottom face of the fitting groove (11), and the welding projection (25) is welded integrally by ultrasonic processing in a state in which the body (2) formed of a resin and the cover (4) are caused to come in contact with each other by pressure such that a fused resin does not overflow from the fitting groove (11) to an external surface, resulting in the fabrication of a slider which can prevent a fused and solidified lump from being formed and can make a good appearance. <IMAGE> |
