Bending apparatus

Details Bending apparatus Bending apparatus

2005-03-28

2010-10-26

Jones, David B (Department: 3725)

Metal deforming

With use of control means energized in response to activator...

Sensing tool or tool-linked part

C072S031100, C072S031110, C072S389300, C072S389600, C072S446000, C100S257000, C029S753000

Reexamination Certificate

active

07818985

ABSTRACT:
A bending apparatus is provided with a ram start-up device so as to be movable in a lateral direction. A controller moves the ram start-up device to a point in front of positioning points of abutments corresponding to points of selected edges of a workpiece. The bending apparatus includes a foreign object detector that detects the entry of a foreign object into a region of movement of the ram start-up device. A controller prevents the ram start-up device from moving when the entry of the foreign object is detected.

REFERENCES:
patent: 4074350 (1978-02-01), Roch et al.
patent: 4166370 (1979-09-01), Goodman
patent: 4170134 (1979-10-01), Nathan
patent: 4831862 (1989-05-01), Ohashi et al.
patent: 7007530 (2006-03-01), Koyama et al.
patent: 2006/0162408 (2006-07-01), Niwa et al.
patent: 9-295057 (1997-11-01), None
patent: 2000-351018 (2000-12-01), None
patent: 2004-058070 (2004-02-01), None
English Language Abstract of JP 2000-351018.
English Language Abstract of JP 2004-058070.
English Language Abstract of JP 9-295057.

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