Die clamp mechanism for press machine

Details Die clamp mechanism for press machine Die clamp mechanism for press machine

2008-08-01

2010-11-02

Tolan, Edward (Department: 3725)

Metal deforming

Tool and/or tool holder

Having unitary tool-face

C072S448000, C072S481600, C072S482920

Reexamination Certificate

active

07823435

ABSTRACT:
A die clamp mechanism includes: a plunger that protrudes from a lower side of a carrier when the carrier on which a bolster is mounted is separated from a bed of a press machine and plunges into the lower side of the carrier when the carrier is grounded on the bed; a biasing member that biases the plunger downward; and an engaging member that engages a die with the bolster in accordance with an axial movement of the plunger when the plunger plunges into the lower side of the carrier.

REFERENCES:
patent: 4187713 (1980-02-01), Fellner
patent: 5000022 (1991-03-01), Shinkai et al.
patent: 5860315 (1999-01-01), Sawdon
patent: 6463839 (2002-10-01), Ohtsuka et al.
patent: 6483839 (2002-11-01), Gemar et al.
patent: 2002-331323 (2002-11-01), None
patent: 2004-136293 (2004-05-01), None
patent: 2004-268186 (2004-09-01), None

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