Linear guide apparatus

Details Linear guide apparatus Linear guide apparatus

1990-10-23

1992-04-21

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

310 13, 318135, 318 38, H02K 4102

Patent

active

051071576

ABSTRACT:
A linear guide apparatus comprises a fixed body; a movable body movable on the fixed body in a predetermined direction; a retainer disposed between the fixed and movable bodies, for rotatably supporting rolling bodies brought into contact with the fixed and movable bodies; a first rack provided on the fixed body in the predetermined direction; a second rack provided on the movable body in the predetermined direction; a third rack provided on the retainer in the predetermined direction; a first pinion in mesh with the first and third racks, respectively; and a second pinion in mesh with the second rack. The first and second pinions are coupled integrally and coaxially with respect to each other and disposed rotatably and slidably in the predetermined direction. Further, a pitch diameter of the second pinion is three times larger than that of the first pinion. Therefore, the relative positional relationship the fixed body, the movable body and the retainer can be securely maintained, and thus the movable body can be precisely moved relative to the fixed body via the retainer in the predetermined direction.

REFERENCES:
patent: 4594520 (1986-06-01), Miwa et al.
patent: 4661730 (1987-04-01), Maruyama et al.
patent: 4742255 (1988-05-01), Nakagawa et al.
patent: 4864170 (1989-09-01), Eguchi
patent: 4879482 (1989-11-01), Murofushi
patent: 4918264 (1990-04-01), Yamamoto et al.

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