Patent · US Expired

Friction drive for rotary to linear motion

US5197343A · kind A · utility

1Cited by
4References
4Claims
0Family size

Inventor

Key dates

Filing dateNov 13, 1991
Grant dateMar 30, 1993
Priority date—
Expiry dateNov 13, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/18568
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.