Upper tool and upper tool holding device for press brake

Details Upper tool and upper tool holding device for press brake Upper tool and upper tool holding device for press brake

1995-10-18

1997-07-01

Jones, David

Metal deforming

Tool and/or tool holder

Having unitary tool-face

723893, 72462, B21D 3704

Patent

active

056426429

ABSTRACT:
An upper tool for a press brake is removably attachable to an upper tool holding device mounted on an upper table of the press brake. The upper tool includes a mounting portion and a projection portion, both adjacent a first end of the upper tool, a work processing portion adjacent a second end of the upper tool, a clamping surface and a sliding surface, extending divergingly from the projection portion, and a contact surface extending substantially perpendicular to the sliding surface. The clamping surface extends along the length of the upper tool beyond the contact surface.

REFERENCES:
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patent: 4993255 (1991-02-01), Treillet
patent: 5022256 (1991-06-01), van der Muelen
patent: 5065610 (1991-11-01), Yonezawa
patent: 5245854 (1993-09-01), Bruggink et al.
patent: 5507170 (1996-04-01), Kawano
patent: 5511407 (1996-04-01), Kawano
patent: 5513514 (1996-05-01), Kawano
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Japanese Patent Abstract, vol. 12, No. 145 (M693).
English Language Abstract of JP 62-267019.
European Search Reports and Annexes.
Patent Abstracts of Japan, vol. 18, No. 227 (M-1597) of Apr. 25, 1994 and JP No. 06-023436.
Patent Abstracts of Japan, vol. 8, No. 146 (M-307) of Jul. 7, 1984 and Japanese Patent Document No. 59-042124.

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