Vertically retractable door system for a stamping press

Details Vertically retractable door system for a stamping press Vertically retractable door system for a stamping press

2005-08-23

2005-08-23

Redman, Jerry (Department: 3634)

Presses

Safety device

Barrier type

C100S345000, C049S213000

Reexamination Certificate

active

06931987

ABSTRACT:
A vertically retractable door system for a stamping press includes a pair of vertical mounting plates having generally vertical opposing door guide channels with inwardly curved lower portions. A door with windows extends between the plates and includes support blocks enclosing bushings supporting rollers within the guide channels. Spring biased locking pins extend through a pair of the bushings into selectable vertically spaced holes within the mounting plates, and a rotatable latch handle is supported by the door and is connected to the locking pins by a drum and cable system for retracting the pins. The mounting plates have removable blocks within recesses extending from the channels to facilitate easy removal of the door, and enclosed counterweights are connected by cables and pulleys to the door to facilitate manual movement of the door between an upper retracted position and a lower closed position sloping downwardly and inwardly towards the press.

REFERENCES:
patent: 3531895 (1970-10-01), Appell
patent: 4039060 (1977-08-01), Williams et al.
patent: 4162878 (1979-07-01), Puglisi et al.
patent: 5050943 (1991-09-01), Barnett
patent: 5271183 (1993-12-01), Hahn et al.
patent: 6244412 (2001-06-01), Schmitz
patent: 3401332 (1985-07-01), None

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