| 摘要 |
There is described a hinged structure comprising two supports and one or more hinges hinging the supports together so that they are parallel and closely adjacent, the or each hinge comprising two hinge members, each hinge member being made of resilient strip material, each hinge member being S-shaped, passing partially round each support and together with the other hinge member forming a letter chi or FIG. 8 configuration as seen in a direction along the supports, wherein a releasable catch is provided for holding the supports in a predetermined relative angular position, the catch comprising two cam members each associated with a respective suport and the two being resiliently urged into engagement and so shaped and arranged that rotation away from the said predetermined relative angular position of the supports urges the cam members apart against the resilient urging. |
