Rolling shutter and shutter drive

Details Rolling shutter and shutter drive Rolling shutter and shutter drive

1995-04-25

1996-12-24

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

160183, 160310, E06B 908

Patent

active

055865925

ABSTRACT:
A rolling shutter includes a plurality of elongated shutter elements each having a plurality of alternate ribs and valleys formed on each side thereof is pivotally coupled by a plurality of link elements interleaved between the shutter elements. The shutter element and link array thus formed includes a repeated subset combination of coupling links and shutter elements which facilitate the pivotal motion of a shutter element pair about a common link to form a reinforcing portion of the shutter element array. A tractor drive mechanism includes a plurality of drive belts having engaging teeth for coupling to the alternate ribs and valleys of the shutter elements to provide positive drive force in either direction. A spring-biased take-up roll is supported in proximity to the tractor drive to receive the portion of the shutter element array withdrawn into the tractor drive.

REFERENCES:
patent: 3173475 (1965-03-01), Wegner
patent: 3989084 (1976-11-01), Inamura et al.
patent: 4294302 (1981-10-01), Ricke
patent: 4725000 (1988-02-01), Deziel
patent: 4747441 (1988-05-01), Apolzer et al.
patent: 4795206 (1989-01-01), Adams
patent: 5469905 (1995-11-01), McKinney et al.

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