Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1984-04-13
1985-05-28
Marcus, Stephen
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 7544, B65H 1702
Patent
active
045195544
ABSTRACT:
This invention relates to a device for driving a horizontal sheltering awning having one end adapted to be rolled on a first winding shaft and another end adapted to be connected through flexible straps to another winding shaft on which these straps can be rolled up. Each winding shaft is adapted to be driven by a separate motor. A fixed portion of each motor case encloses a retarder cooperating with a unidirectional driving device of which the two sections are disposed on a rotary movable element and on the output shaft of the corresponding motor, on which the rotary movable element is pivoted, respectively. The two sections of the eddy-current type retarder are disposed the one on the outer periphery of the rotary movable element and the other inside the fixed case, respectively. The first section consists of a copper socket and the other of permanent magnets. Each unidirectional driving device is so oriented as to provide the angular coupling between its two sections only when the corresponding windings shaft is rotatably driven not by its motor but by the motor of the other winding shaft via the awning and the flexible straps. The eddy-current type retarder of this driven winding shaft is then operative.
REFERENCES:
patent: 2325885 (1943-08-01), Serrurier
patent: 2603678 (1952-07-01), Helmer
patent: 2993660 (1961-07-01), Parks
patent: 3806061 (1974-04-01), Kollar et al.
patent: 3975652 (1976-08-01), Hammond
patent: 4225098 (1980-09-01), Henkler et al.
patent: 4444363 (1984-04-01), Jacquel et al.
Dieupart Michel
Dussoliet Jacques
Marcus Stephen
Peters Leo J.
Somfy
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