Linear motion to rotary motion converter

Details Linear motion to rotary motion converter Linear motion to rotary motion converter

1997-06-10

1998-10-13

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Oscillation or reciprocation to intermittent unidirectional...

74813R, 74813L, F16H 2702

Patent

active

058195866

ABSTRACT:
A linear motion to rotary motion converter. A moving cam carrier reciprocates with respect to a rotating turntable having a plurality of fingers, preferably roller bearings, secured to and extending from the turntable parallel to the axis of rotation of the turntable and radially spaced from the axis. The number of rollers extending from the turntable determine the number of indexed stop positions of the turntable. The cam carrier has two movable cams and also has two retaining members that are attached to the cam carrier and respectively spaced from the movable cams so as to define channels, between the respective pairs of movable cams and retaining members, through which the roller bearing fingers of the turntable are constrained to move. The curvature and shape of the channels determines the velocity profile of the turntable as the cam carrier reciprocates. The invention also has lock positions at either end of the reciprocating cam carrier's movement in which the turntable is locked from rotation in either direction.

REFERENCES:
patent: 2021030 (1935-11-01), Swahnberg
patent: 3085452 (1963-04-01), Thompson
patent: 3120134 (1964-02-01), Sweeney
patent: 3161070 (1964-12-01), Venables, III
patent: 3924527 (1975-12-01), Shenoha et al.
patent: 4377953 (1983-03-01), Hagen
patent: 4428256 (1984-01-01), Ida et al.
patent: 4771646 (1988-09-01), Ruggier et al.

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