Pressing machine with die cushion device

Details Pressing machine with die cushion device Pressing machine with die cushion device

2011-06-14

2011-06-14

Ekiert, Teresa M (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S453130, C100S269180, C100S918000

Reexamination Certificate

active

07958765

ABSTRACT:
A pressing machine1includes: a bed6on which a die-cushion device10is provided; and a bolster51provided on the bed6. The bed6has an inner space61in which a die-cushion pad13of the die-cushion device10is lifted up and down. A supporting portion63penetrating the die-cushion pad13in a lifting direction and supporting a lower surface of the bolster51via a carrier52is provided in the inner space61. With this arrangement, since the bolster51is supported by the supporting portion63, the bolster51can be prevented from being flexed during a press forming operation, whereby a highly accurate press forming operation can be realized. In addition, since the supporting portion63penetrates the die-cushion pad13, unlike conventional arrangements, the die-cushion pad13does not need to be divided, whereby a complication of the arrangement can be avoided.

REFERENCES:
patent: 1670551 (1928-05-01), Rode
patent: 1779093 (1930-10-01), Haverbeck
patent: 5419169 (1995-05-01), Kirii
patent: 5471861 (1995-12-01), Kirii
patent: 5540073 (1996-07-01), Kirii
patent: 5660074 (1997-08-01), Kaji
patent: 6101861 (2000-08-01), VanderZee et al.
patent: 2004/0094046 (2004-05-01), Aoshima et al.
patent: 5-285557 (1993-11-01), None
patent: 6-142996 (1994-05-01), None
patent: 6-312225 (1994-11-01), None
patent: 7-100552 (1995-04-01), None
patent: 7-185692 (1995-07-01), None
patent: 8-1247 (1996-01-01), None
patent: 10-85863 (1998-04-01), None
patent: 10-166072 (1998-06-01), None
patent: 10-166191 (1998-06-01), None
patent: 10-202327 (1998-08-01), None
patent: 2002-501834 (2002-01-01), None
patent: WO 99/38675 (1999-08-01), None
Japanese Office Action dated Nov. 16, 2010 (and English translation thereof) in counterpart Japanese Application No. 2005-006794.

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