Device for converting rotary motion to axial motion and a method

Details Device for converting rotary motion to axial motion and a method Device for converting rotary motion to axial motion and a method

1974-12-17

1976-06-29

Love, John J.

Cutlery

308189R, 308199, F16C 1904

Patent

active

039662802

ABSTRACT:
This invention concerns an apparatus for the conversion of a rotary motion into an axial motion, said apparatus comprising a number of rolling bearings having larger inner diameter than the outer diameter of a shaft, which extends through the bearings in such a manner that the bearings exert radial forces on the shaft, the vectorial sum of said forces being equal to zero. Each bearing is supported in a recess in one of two or more jaws, said recesses being arranged so that the axis of each bearing is inclined relatively to the axis of the shaft in such a way that each bearing will roll along a helical line on the surface of the shaft. The jaws are totated in common and the jaws are provided with clamping means adapted for increasing the radial forces against the shaft in response to the axial load on the shaft.

REFERENCES:
patent: 2940322 (1960-06-01), Uhing
patent: 3789678 (1974-02-01), Gartner

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