| 摘要 |
1. Device for holding plate materials on the tables (18) of a sawing machine, in particular for the final cutting of the plate materials, including a supporting mechanism (3) subjected to a vertical movement through a jack (178), characterized in that it possesses a relay mechanism (4) fitted with a transverse pressure bar (8) that covers the entire length of the tables (18) of the sawing machine and each end (17) of which has a vertical support (19) fitted with bearings (34, 35) provide with a bushing (38, 39), with this transverse pressure bar (8) subjected to a vertical movement brought about by motor means that consist of one jack (78) at least, the bottom end (79) of which is fitted solidly to a sole (49) attached to the table (18) downward from the saw-blade and of which the end (87) of the piston (88) is secured solidly to a crossbar (89) fitted itself solidly to the vertical supports (19) and co-operating with the latter via means of transmission that consist of a guide axle (44), the bottom end (45) of which is secured solidly to the sole (49), with this axle (44) having a centerline (90) situated close to the narrow edge (91) of the sole (49) in order to bring the pressure bar (8) of the relay mechanism (4) as close as possible to the supporting mechanism (3), being fitted with a rack (64), along which travels a toothed pinion (69) and with a transverse axle (72) that has, at each end, the toothed pinion (69), with this transverse axle (72) held by bearings (92) fitted solidly to the pressure bar (8) and by vertical consoles (75) secured solidly to the bearings (34, 35), ensuring for the two ends (17) of the pressure bar (8) an identical vertical displacement. |
