Device for manufacturing a shutter link for a multi-link overhea

Details Device for manufacturing a shutter link for a multi-link overhea Device for manufacturing a shutter link for a multi-link overhea

1983-08-11

1985-08-27

Moon, Charlie T.

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

29779, 29788, 264 465, B21B 1500, B21D 3903, B23P 2304, B23P 2500

Patent

active

045369291

ABSTRACT:
A shutter link (1) for a multi-link overhead shutter or roller blind comprises two sheet metal sheets (7, 8) formed with a cavity (3) between them. The cavity is filled with a heat insulative compound (4) and hinge formations (5, 6) are provided along the longitudinal side of the sheets. Slots (9) are formed along the length of each shutter link on one wide side thereof. The slots are bridged by narrow webs (11) defined by slot interruptions and flanges are provided along the slots on their side facing the cavity with notches (15) formed adjacent to the bending lines and extending parallel to the slots.

REFERENCES:
patent: 1352656 (1920-09-01), Cahill
patent: 3004324 (1961-10-01), Macomber
patent: 3511301 (1970-05-01), Graham et al.
patent: 3547603 (1970-12-01), Bragman
patent: 3929949 (1975-12-01), Day et al.
patent: 3968561 (1976-07-01), Oakes et al.
patent: 4162571 (1979-07-01), Horvay

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