Cope holder device

Details Cope holder device Cope holder device

2006-07-04

2006-07-04

Keith, Jack (Department: 3725)

Metal deforming

Tool and/or tool holder

Having unitary tool-face

C072S479000, C072S481100, C072S482910, C072S482940

Reexamination Certificate

active

07069766

ABSTRACT:
An upper die holder apparatus having a holder body has an upper die clamp supported to the holder body with a supporting point supporting the upper die clamp in a vicinity of a center in a vertical direction of the holder body. A clamping force applier is provided to the holder body for pressing an upper portion of the upper die clamp so that the upper die clamp clamps the upper die. A pressure receiver is provided to an upper portion of the upper die clamp. The pressure receiver, having a pressure sensing surface, is provided so that its advancing and retreating are adjusted to a pressing direction by the clamping force applier and the pressure receiver is provided so that an opening amount of the upper die clamp at the time of unclamping is freely selected between a plurality of stages.

REFERENCES:
patent: 5460027 (1995-10-01), Takahashi
patent: 5507170 (1996-04-01), Kawano
patent: 5511407 (1996-04-01), Kawano
patent: 5513514 (1996-05-01), Kawano
patent: 5619885 (1997-04-01), Kawano et al.
patent: 5642642 (1997-07-01), Kawano
patent: 5685191 (1997-11-01), Kawano et al.
patent: 5794486 (1998-08-01), Sugimoto et al.
patent: 682995 (1995-11-01), None
patent: 767015 (1997-04-01), None

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