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US 5,181,412 AGranted
Apparatus bending hollow profiles into spacer frames for insulating glass
OwnerPeter Lisecinventor
Life of this patent
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Abstract
Apparatus for bending hollow profiles 3 into spacer frames for insulating glass panes, the hollow profile 3 being advanced by a gripper 2 displaceable along a conveyor 4. The magnitude of the stepwise advance of the hollow profile 3 corresponds to the lengths of the legs of the spacer frame to be made. A pickup 6 on the gripper 2 measures precisely each stepwise advance.
Claims8
In apparatus for bending hollow polygonal profiles (3) into spacer frames for insulating glass panes, comprising a bending system (8, 9) and a conveyor (4) to move the hollow profile (3);
- the improvement comprising only a single gripper (2) in said apparatus, said single gripper being adapted to be releasably secured to the hollow profile (3) and which both moves by a pre-selected distance parallel to the conveyor (4) and releases the hollow profile (3) during a bending operation, whereby said single gripper (2) grips the hollow profile (3) not only during advance of the hollow profile into a bending position but also during the onset of bending, and an incremental pickup (6) disposed on said apparatus for measuring said pre-selected distance of displacement of said single gripper (2).
Dependencies are inferred from the claim text.