Bending device for a tubular member

Details Bending device for a tubular member Bending device for a tubular member

2011-07-19

2011-07-19

Sullivan, Debra M (Department: 3725)

Metal deforming

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

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

C072S159000

Reexamination Certificate

active

07980108

ABSTRACT:
A bending device for a tubular member includes a bending tool which is rotatable about an axis. The bending tool includes a circumferential recess and is split transversely to the axis to form a first tool member and a second tool member. Extending tangentially to the recess and partly embracing the tubular member is a plate-shaped wiper die which has a receiving channel. A non-rotatable disc-shaped support tab is securely fixed to the wiper die and projects between the first and second tool members. The support tab has a circumferential cradle which is configured to match a contour of the tubular member and to merge into the receiving channel of the wiper die in a tangential and smooth manner. An outer clamping jaw is jointly pivotable with the bending tool, and a trough-shaped resistance member is placed in opposition to the wiper die and movable longitudinally along the receiving channel.

REFERENCES:
patent: 1238941 (1917-09-01), Reynders
patent: 3118488 (1964-01-01), Barnhill et al.
patent: 4563891 (1986-01-01), Schwarze
patent: 5142895 (1992-09-01), Schuchert
patent: 201 18 444 (2002-02-01), None

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