| 摘要 |
943,140. Strap fastenings. CLEARWAY COUPLINGS Ltd. Oct. 10, 1962 [Nov. 21, 1961], No. 41567/61. Heading E2A. A strap fastening comprises a first belt attachment member 11, which is adapted to be secured to one belt end 14 and a second belt attachment member 16 which is provided with an aperture through which the first member can be passed and which is adapted at one end to be secured to another belt end the other end of the second member being provided on each lateral side with a projection 18 which extends into the aperture and which is arranged on either of two opposite faces to engage the rear face of the first member 11 when the latter is assembled to the second member regardless of the direction on which the first member is passed through the second member, means being provided for preventing passage of the first belt attachment member through the aperture on the second belt attachment member if the first member is presented to the second member in a manner such that the front face of the first member is adjacent to the projections of the second member. As shown, the member 11 is formed on each of its two lateral sides with an undercut portion 15 which engage the projections 18 of the member 16 as the member 11 is turned to lie in the position shown. Co-operating projections 19 on the member 11 and a bar 20 on the member 16 prevent complete engagement of the members when the belt associated with member 11 is twisted through an odd number of half turns. This is achieved, in another arrangement Figs. 3 and 4 (not shown) by means of a flange which projects from the rear face of member 11, the width of the flange being less than the distance between projections 18 and the overall thickness of the member 11 in the region of the flange larger than the distance between the bar 20 and the projections 18. In another arrangement Figs. 5-7 (not shown), complete engagement of the members is prevented by a pair of side flanges on the member 11 which co-operate with recesses formed in the member 16. In a further arrangement, Figs. 8-10 (not shown), side flanges on the member 11 are inclined to the plane thereof and co-operate with recesses formed in the projections 18. In any of the arrangements described the second member may be provided with a side slot for a further strap. |
