Patent ID: 8635759

Claim:
A method for clamping a plate ( 1 ) on a sheet material support ( 3 ), said method comprising the steps of providing a pre-plate ( 8 ) and a counter-plate ( 4 ), said pre-plate ( 8 ) comprising a plurality of pin supporting elements ( 2 ) bearing, on the rear side thereof, a plurality of pins ( 6 ) for engagement each in a corresponding hole ( 7 ) of said counter-plate ( 4 ); wherein said pre-plate ( 8 ) includes a plurality of anchoring means ( 9 ) for temporarily anchoring said pin supporting elements ( 2 ) of said pre-plate ( 8 ) at a plurality of attachment points, the attachment points amongst said anchoring means ( 9 ) and supporting elements ( 2 ) being arranged on the rear side of said elements ( 2 ), said anchoring means ( 9 ) being further adapted to be removed from said pre-plate to allow said pins ( 6 ) to be exposed and configured to be inserted into said holes ( 7 ) of the counter-plate ( 4 ); removing said anchoring means ( 9 ) from said pre-plate, to expose said pins ( 6 ); clamping said plate ( 1 ) on said sheet material support ( 3 ) by engaging said pins ( 6 ) in said holes ( 7 ) of said counter-plate ( 4 ); wherein said sheet material support ( 3 ) is interposed between said plate ( 1 ) and said counter-plate ( 4 ).