Movable or removable closures – With operator for movably mounted closure – Closure-mounted drive
Patent
1997-07-22
1998-12-29
Redman, Jerry
Movable or removable closures
With operator for movably mounted closure
Closure-mounted drive
49360, 310 67R, E05F 1100
Patent
active
058528970
ABSTRACT:
A friction wheel door drive for a sliding door for lifts consisting of at least one rectilinearly or curvilinearly moved door leaf (1), which is suspended of guide rollers (3) and is guided at a guide (2) is presented. At least one of the guide rollers (3) is formed as a motor roller (3') moving the door leaf and in the form of an outside rotor motor. The motor may be either a direct current motor with permanent magnets in the outside rotor and electronic commutation or a polyphase induction motor with a laminated outside rotor having a short-circuited winding and a laminated inner stator with a polyphase alternating current winding. Force transmission between the motor roller (3') and a running roller (3") may be provided by a transmission (18), between motor roller (3') and running roller (3") is possible.
REFERENCES:
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patent: 1881017 (1932-10-01), Jacobson
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patent: 2303263 (1942-11-01), Fisher
patent: 2337430 (1943-12-01), Trombetta
patent: 3746902 (1973-07-01), Hetzel
patent: 3812928 (1974-05-01), Rockwell et al.
patent: 5172518 (1992-12-01), Yoshino
patent: 5301468 (1994-04-01), Kamezaki
Inventio AG
Redman Jerry
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