| 摘要 |
PURPOSE:To obtain a strong stop structure and a stable automatic stop function and to provide a comfortable feel by touch by making a pair of protuberances rise so as to protect the front half part and by providing a round bulge up to the periphery of the shoulder part of the slider body. CONSTITUTION:A pair of protuberances 4, 4 rise so as to protect a clasp 6 with a bulge. Consequently the clasp hardly receives direct impact caused by external force. Therefore strong automatic stop structure can be maintained, and as a result the automatic stop function can work in a stable condition. Besides at the front half part of an upper wing piece 2, a sleeve extends up to the periphery 1a of the shoulder or to the part adjacent thereto, forming a pair of protruberances 4, 4 having a round bulge. Therefore it has an appearance superior in design. Besides when touching either directly or indirectly the human skin, the feel by touch is very good without giving an uncomfortable feeling of physical disorder. |
