Dust-proof structure for a linear motion actuator

Details Dust-proof structure for a linear motion actuator Dust-proof structure for a linear motion actuator

1994-04-13

1997-01-28

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

310 88, 74566, H02K 510

Patent

active

055980430

ABSTRACT:
A linear motion actuator of the present invention is provided with a casing including slits extending axially, a carriage being axially movable along guide rails within the casing, the carriage including driven member mounting portions protruded outside through the slits for mounting a driven member, a plurality of seal bands fastened to the driven member mounting portions of the carriage for sealing openings of the slits regardless of the location of the carriage when the seal bands are moved along the slits, and a driving device for driving the carriage to move along the guide rails. The linear motion actuator with a dust-proof function has no need of passing the seal bands through the carriage, so that the carriage have a solid and simple structure of high rigidity without the abnormal shifting motion of the seal bands.

REFERENCES:
patent: 4545290 (1985-10-01), Lieberman
patent: 4552031 (1985-11-01), Barbagli

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