Flexible or portable closure – partition – or panel – Roll type – With brake or stop
Patent
1990-07-24
1992-03-31
Purol, David M.
Flexible or portable closure, partition, or panel
Roll type
With brake or stop
160305, 160392, E06B 956
Patent
active
050999060
ABSTRACT:
In the roller screen unit of the present invention, a clutch mechanism based on centrifugal effect using balls is provided with a ratchet member in which a cylindrical portion having notches between engaging grooves of a stator member and floating grooves of a rotator member, to perform stepwise operations of drawing/expanding, winding/housing and stopping the screen member. The roller screen unit of the present invention is provided with a braking mechanism having a top member, for controlling rotation of the rotator member during winding/housing of the screen member, centrifugally in contact with the inner peripheral surface of the rotator member. In addition, a connecting portion having side edge turnups or beads portion is provided at an end of the screen member and are engaged with groove provided in the longitudinal direction of the roller sleeve to simplify and facilitate to attach the screen member to the roller sleeve.
REFERENCES:
patent: 350656 (1886-10-01), Brooks
patent: 1898686 (1933-02-01), Rice
patent: 2547692 (1951-04-01), D'Azzo
patent: 2758526 (1956-08-01), McFadden
patent: 4250942 (1981-02-01), Dreher et al.
patent: 4305447 (1981-12-01), Persson
patent: 4345636 (1982-08-01), Fukuchi
patent: 4466475 (1984-08-01), Saito et al.
patent: 4681279 (1987-07-01), Nakamura
Chigusa Tomomichi
Tsuchida Osamu
Metaco Co., Ltd.
Purol David M.
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