Bending machine

Details Bending machine Bending machine

2007-09-18

2007-09-18

Jones, David B. (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

By use of work-contacting wiper and moving, work-holding form

C072S159000, C072S385000

Reexamination Certificate

active

11254527

ABSTRACT:
A bending machine according to the present invention include: a first fixture member22for holding one end portion of a long work20; a second fixture member24for holding the other end portion of the work20; a rack30mounted on the first fixture member22so as to extend in longitudinal directions of the first fixture member22; a roll-shaped bending die21, mounted on the second fixture member24, for bending the work along the outer peripheral surface of the second fixture member; a pinion gear26which is coaxially connected to the bending die21via a shaft28and which engages the rack30; and a connecting member27for connecting the first fixture member22to the second fixture member24via the shaft28in a relatively rotatable state so that the pinion gear26is movable along the rack30while engaging the rack30.

REFERENCES:
patent: 4485658 (1984-12-01), Stewart et al.
patent: 4727738 (1988-03-01), Yogo
patent: 5937687 (1999-08-01), Bhandari et al.
patent: 6976378 (2005-12-01), Kobayashi
patent: 57-56114 (1982-04-01), None
patent: 2-17705 (1990-05-01), None
patent: 6-39220 (1994-05-01), None

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