| 摘要 |
PCT No. PCT/IT85/00030 Sec. 371 Date Apr. 29, 1986 Sec. 102(e) Date Apr. 29, 1986 PCT Filed Aug. 28, 1985 PCT Pub. No. WO86/01546 PCT Pub. Date Mar. 13, 1986.Device for aligning automatically the contours of two plies to be sewed one upon the other, consisting of three superimposed blades (1,2,3) hinged to one another at one end by means of a cross pin (4) so as to generally form a double pliers. From the pin (4) onwards the device comprises :elastic means (7) which can be calibrated and tending to press the blade (2) against the blade (1) and the blade (3) against the blade (2); means (8) to vary the angular opening between the blades (1,2,3), means (9) to adjust the maximum and minimum angular opening between the blades (1,2,3), abuting means (28a,28b,28c) to define the alignment position of the contours of the plies (T,t) to be sewed and means to bring the plies to the alignment on an air pad or by friction. |
