| 摘要 |
A mounting for a sheet (14) that has a bead (20) about its periphery includes frame members (22, 24) forming a rectangle with each frame member (22, 24) including mutually parallel multiple engagement surfaces (30) defined on ribs (28). An elongate retainer (36) includes an elongate flange (40) with an interlocking surface (42) which can selectively interlock with any one of the engagement surfaces (30) on the frame member (22, 24). Each of the frame members (22, 24) also has a frame rail (32) having a rail surface (34) that faces away from a retainer rail surface (46) on a rail (44) of the retainer (36). A tool (50) including pinch rollers (54, 56) squeezes the rail surfaces (34, 46) toward one another to place the sheet (14) held by the retainer (36) in tension while the interlocking surface (42) is engaged with the appropriate engagement surface (30).
|
