| US 7,461,531 B2 | ||
| Press plant and a method and use for it with a pressure cell and a divisible tray | ||
| Keijo Hellgren, Västerås (Sweden) | ||
| Assigned to Avure Technologies AB, Vasteras (Sweden) | ||
| Appl. No. 10/415,244 PCT Filed Nov. 23, 2001, PCT No. PCT/SE01/02594 § 371(c)(1), (2), (4) Date Oct. 21, 2003, PCT Pub. No. WO02/43888, PCT Pub. Date Jun. 06, 2002. |
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| Claims priority of application No. 0004370 (SE), filed on Nov. 28, 2000. | ||
| Prior Publication US 2004/0050263 A1, Mar. 18, 2004 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B21D 22/10 (2006.01) | ||
| U.S. Cl. 72—63 [72/60; 72/455] | 24 Claims |
| 1. A press plant, comprising:
a pressure cell-type press adapted for sheet metal forming, the press including a force-absorbing press body enclosing a press
chamber; and
a tray device configured to be positioned within the press chamber, the tray device being adapted to hold a forming tool and
defining a space to receive a workpiece, said tray device comprising a tray plate and a tray frame, the tray frame being adapted
to independently withstand loads applied during a pressing operation, the tray device being divisible into at least an annular
upper part and a lower part.
|