| 摘要 |
PCT No. PCT/FI94/00410 Sec. 371 Date Jun. 18, 1996 Sec. 102(e) Date Jun. 18, 1996 PCT Filed Sep. 16, 1994 PCT Pub. No. WO95/07779 PCT Pub. Date Mar. 23, 1995A folding press is disclosed having a frame supported by a fixed base; a fixed beam and a ram beam supported by the frame, the ram beam being movable relative to the fixed beam; a pair of folding blades attached to the beams for folding a sheet of metal; and manipulation means for grasping the sheet of metal and introducing the sheet of metal between the folding blades, the manipulation means being attached to the ram beam. The folding blades are so disposed as to produce a horizontal working stroke relative to the fixed base, and the manipulation means comprises a plurality of arm members rotatable in relation to each other. In operation, the manipulation means grasps a sheet of material and introduces it between the blades while maintaining the sheet of material in a substantially vertical position relative to the fixed base, thereby minimizing folding errors caused by a horizontal disposition of the sheet of material. |
