Rotary-to-linear-motion converter

Details Rotary-to-linear-motion converter Rotary-to-linear-motion converter

1978-09-15

1980-05-20

Husar, C. J.

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

74198, 74 89, F16H 2116

Patent

active

042033284

ABSTRACT:
An adjustable pitch, zero backlash, rotary-to-linear-motion converter particularly adaptable for the precision positioning of linearly movable light weight mechanisms. The spherical bearing ends of three or more dumbbell-shaped rollers, in an interference fit between a rotatable shaft and the inner surface of a cylindrical sleeve, are partially enclosed in end cages which are clamped together but which may be adjusted so that the parallel roller axes are offset from the shaft axis whereby rotation of the shaft will provide rectilinear movement to the sleeve.

REFERENCES:
patent: 2940322 (1960-06-01), Uhing
patent: 3046801 (1962-07-01), Pravel
patent: 3081639 (1963-03-01), Hauptman
patent: 3272021 (1966-09-01), Weber
patent: 3572136 (1971-03-01), Stanley
patent: 3589202 (1971-06-01), Stanley
Design News, Feb. 16, 1968, (Article by Lars G. Soderholm).
Barry Wright Corp. brochure entitled "The Roh'lix System," Bulletin, No. 8.3E.
Amacoil Machinery, Inc. brochure entitled "Variable Pitch Uhing Patent Traverse."

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