Apparatus for driving a curtain

Details Apparatus for driving a curtain Apparatus for driving a curtain

1988-03-04

1989-06-13

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Linear

160331, H02K 4100, A47H 502

Patent

active

048395447

ABSTRACT:
A driving apparatus of a curtain includes a field portion disposed in a curtain rail containing a curved portion. The field portion includes a yoke and a magnet group having magnetic poles disposed along the yoke alternately so that adjacent poles are different from each other and which is preferably formed of a flexible rubber magnet. There is provided a movable portion guided on the curtain rail movably and including a core base opposed to the magnet group, a plurality of cores project from the core base toward the magnet group and are integrally formed in the core base and coils are wound on a plurality of cores. Further, a commutator which switches the polarity for the movable portion is provided to form a linear motor and thereby the polarity of a dc power source for energizing the commutator is switched so that the curtain attached, at an end thereof, to the movable portion is moved along the curtain rail in one direction and the opposite direction to open and close the curtain.

REFERENCES:
patent: 4023057 (1977-05-01), Meckling
patent: 4315171 (1982-02-01), Schaeffer
patent: 4623807 (1987-11-01), Nakamura
patent: 4662424 (1987-05-01), Busselman et al.

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