| 摘要 |
<p>PCT No. PCT/EP93/00715 Sec. 371 Date Sep. 2, 1993 Sec. 102(e) Date Sep. 2, 1993 PCT Filed Mar. 24, 1993 PCT Pub. No. WO93/18678 PCT Pub. Date Sep. 30, 1993.A snap fastener for securing shoe laces comprises two openings disposed diametrically to each other through which the shoe laces are passed. The openings extend longitudinally through the snap fastener when the latter is opened. An inner sleeve is in a larger outer sleeve such that it is longitudinally movable relative thereto. The inner sleeve accommodates an inner ring. When the pressure is exerted on the outer sleeve, the ring is made to rotate as the longitudinal movement is converted into a horizontal circular movement so that the shoe laces are immovably clamped by the snap fastener.</p> |
