PITTS AND FITTINGS FOR CALCADO WITH PITOES

摘要

PCT No. PCT/GB91/00475 Sec. 371 Date Sep. 28, 1992 Sec. 102(e) Date Sep. 28, 1992 PCT Filed Mar. 27, 1991 PCT Pub. No. WO91/15131 PCT Pub. Date Oct. 17, 1991.In a stud and socket combination for studded footwear, a moulded plastics socket (1) provides a threaded axial hole (5) bounded by an inner ring (9). A co-axial outer ring (10) is radially separated from the inner ring to leave an annular space (11). A plastics stud moulding (19) comprises an externally threaded sleeve (21) which can be screwed into the socket hole and a co-axial ring (26) which is spaced radially outwards from the sleeve to slide over the inner socket ring (9) and enter the annular space (11) when the stud and socket are assembled. Four part-cylindrical webs (29) project axially from the ring (26) into the space (11) and provide four axially-extending locking ribs (28) at 90 DEG intervals which project radially outwards from the ring. On the inner surface of the outer ring (10) of the socket are formed four corresponding formations providing recesses (15) to receive the ribs (28). Each recess is bordered on one side by a lead-in ramp (16) and on the other side by a stop block (17). When the stud is screwed into the socket the projections ride over the ramps in turn, offering increasing resistance to rotation successively, until finally the projections engage the stop blocks (17) to prevent further rotation.