Electricity: motive power systems – Electric motor with nonmotor driving means – Manual driving means
Patent
1981-03-27
1983-11-22
Weldon, Ulysses
Electricity: motive power systems
Electric motor with nonmotor driving means
Manual driving means
318266, 318466, 192138, 160166R, H02K 700
Patent
active
044171854
ABSTRACT:
This driving system for roll-up shades, blinds, rolling shutters or the like is applicable to tubular winding tubes of the shade or the like and comprises an electric motor having its shaft coupled to the tube, and an emergency manual control mechanism in the form of a worm and wheel gearing adapted, in case of failure in the supply of electric current, to drive at the same speed the tubular casing of the electric motor and the winding tube, without causing any misadjustment of the automatic stop device; for this purpose, a particularly compact kinematic connection is provided and comprises a first toothed ring rigid with the winding tube and connected through adequate kinematic means including a pinion rotatably mounted inside a drive wheel to a second toothed ring disposed on the opposite face of this wheel and connected via a toothed wheel to cam members incorporated in the automatic stop means.
REFERENCES:
patent: 2231778 (1941-02-01), Swanson
patent: 3355149 (1967-11-01), Wiegelmann et al.
patent: 3559024 (1971-01-01), Mardev
patent: 3603372 (1971-09-01), Dietzsch
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Somfy
Weldon Ulysses
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