Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Reexamination Certificate
2006-07-25
2006-07-25
Jones, David (Department: 3725)
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
C072S389300, C100S342000, C100S348000, C192S130000, C340S555000
Reexamination Certificate
active
07080534
ABSTRACT:
The present invention relates to a safety apparatus for a machine such as a press brake. The machine has a first and a second machine part which perform a working movement towards each other. The first machine part has a leading edge in the direction of movement, and the leading edge defines a plane of movement. The safety apparatus has a plurality of first light barriers which run with the first machine part during the working movement, with the light beams of the first light barriers extending parallel to the plane of movement and being distributed in the region of the plane of movement in such a way that they run in advance of the leading edge with an increasing distance as viewed in the direction of the working movement. Furthermore, there is a control unit which stops the working movement in response to the first light barriers. There is also a configuration device, by means of which selected ones from the first light barriers can be deactivated at least for the duration of the working movement.
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Harness & Dickey & Pierce P.L.C.
Jones David
Pilz GmbH & Co.
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