Plate bending machines and methods

Details Plate bending machines and methods Plate bending machines and methods

2005-06-24

2008-08-26

Jones, David B (Department: 3725)

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Clamp is active metal-deforming element

C072S316000, C072S388000, C072S389300, C072S390400

Reexamination Certificate

active

07415857

ABSTRACT:
A step-by-step bending machine has a first movable bending member, a second cooperating adjustably fixed bending member, and a third central positionally fixed bending member on an opposite side of a plate to be bent from the first and second members and positioned between the first and second members. The second and third members hold the plate while the first member bends the plate against the third central member. The second member is positionally adjustable to accommodate thickness of the plate. The first member is positioned by cooperating pairs of positioning rams and is moved against the plate by parallel main rams.

REFERENCES:
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patent: 5901600 (1999-05-01), Decker
patent: 6185975 (2001-02-01), Nicoletti
patent: 6711927 (2004-03-01), Furuyama et al.

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