Drive mechanism for fully-automatic opening and closing of a sli

Details Drive mechanism for fully-automatic opening and closing of a sli Drive mechanism for fully-automatic opening and closing of a sli

1985-11-29

1987-10-13

Downey, Kenneth

Movable or removable closures

With means to vary opening span or speed during movement

49362, 49118, 49370, E05F 1500

Patent

active

046989382

ABSTRACT:
A drive mechanism for full-automatic opening and closing of a sliding door comprises two drive mechanisms for supplying different moving speeds to the door. A main motor for the higher speed drives a worm-gear spindle, a low-power motor for the lower speed drives a profiled bar. A gear wheel moving on the worm-gear spindle and a pinion slideably mounted on the profiled bar mesh with each other and are contained in a sliding carriage guiding the sliding door via a latch. The selective or common drive of both motors results in various combinations and enables an adaptation to the requirements for variable door speeds. The drive mechanism is of simple design, relatively cheap and does not require trained service personnel.

REFERENCES:
patent: 2673316 (1954-03-01), Doeg et al.
patent: 3834081 (1974-09-01), Catlett
patent: 4067144 (1978-01-01), Ogishi
patent: 4304071 (1981-12-01), Obrecht

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