| 摘要 |
A picture frame fixing (15,15,16) for use in conjunction with a fastener (17,32) having a shank (18,34) and an enlarged head (19,35), the fixing (14,15,16) having therein a keyhole-shaped slot (21,51) comprising a large diameter portion (22,52) dimensioned to permit passage therethrough of the head (19,3 5) of the associated fastener (17,32), a narrower portion (23,53) dimensioned t o receive the shank (18,34) of the fastener (17,32) but narrower than the head (19,35) of the fastener (17,32), and, intermediate the enlarged (22,52) and narrower (23,53) portions of the slot (21,51) a narrow neck region (24,54) t he width of which is less than the corresponding dimension of the shank (18,34) of the associated fastener (17,32) such that during relative movement of the fixing (14,15,16) and the fastener (17,32) resilient deformation permits the shank (18,34) to pass through the narrow neck (24,54) to achieve a snap-fit in sai d narrower portion (23,53) of said keyhole-shaped slot (21,51).
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