| 摘要 |
1,146,568. Catches; stud and socket fastenings. TARWIL - ROSOFLEX. 3 May, 1967 [23 June, 1966], No. 20450/67. Headings E2A and E2B. A catch comprises a stud 2, formed with diverging, resilient tongues 19, and a socket 1, of flattened tubular form and having two pairs of cuts 11, 14 which provide shoulders 16 and resilient flaps 13. Upon fully inserting the stud into the socket, Fig. 5 (not shown), the outer ends 21 of the tongues 19 automatically engage in the recesses formed by cuts 11 within the shoulders 16, length 1, Fig. 1, being slightly less than length L. To release the catch, the flaps 13 are depressed in directions f 1 to move the tongues 19 towards one another, thus faciliating withdrawal of the stud. Loops form attachment member 6 and 18, which may alternatively take the form of clips, hooks or straps. Alternatively or additionally, rectangular apertures 7 in one socket wall may permit access to stitching holes 8 formed in the opposite wall, recessed portions 9 being formed to accommodate the threads attaching the socket to an item. Alternatively, a recess 10 may extend along almost the entire length of this opposite socket wall, or the side walls of the stud 1 may be recessed to accommodate threads: In a modification, Figs. 7 and 8 (not shown), the socket is formed with two pairs of flaps 13 and associated shoulders 16, the stud having either one or two pairs of diverging tongues. |
