| 摘要 |
An apparatus for supporting and retaining in position a curved sheet (5) which is to be subjected to a machining operation comprising a plurality of support devices (6) spaced apart at regular intervals on a support plate (7), which support devices are positionable at predetermined locations to support and retain the sheet (5), wherein each support device (6) comprises a sliding support member (10) positionable against a contact member, the support member having means (12) capable of adhering to a sheet (5) pivotally mounted thereon, and control means (31) for controlling the pivotal movement of the adhesion means (12) so as to bring the sheet (5) into contact with the positioned support member (6) and to hold the sheet in position to permit machining to take place.
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