Friction drive for rotary to linear motion

Details Friction drive for rotary to linear motion Friction drive for rotary to linear motion

1991-11-13

1993-03-30

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

100160, 100171, 271274, F16H 1310

Patent

active

051973430

ABSTRACT:
A driven member has flat parallel top and bottom surfaces over at least a portion of its length. A motor actuated drive roller is mounted between two parallel, spaced side plates between which the driven member reciprocates and bears against the driven member. Back-up rollers engage the drive roller to prevent the pinion from backing away from the driven member. A spring-mounted pressure roller bears against the side of the driven member directly opposite the drive roller. As the motor turns the drive roller, the latter frictionally engages the driven member and causes the latter to move linearly without the backlash characteristic of rack and pinion mechanisms.

REFERENCES:
patent: 1442838 (1923-01-01), West
patent: 4378709 (1983-04-01), Chitayat
patent: 4444069 (1984-04-01), Dangschat
patent: 4539854 (1985-09-01), Bradshaw et al.

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