Programmer

Details Programmer Programmer

1984-07-18

1986-01-28

Staab, Lawrence J.

Machine element or mechanism

Mechanical movements

Rotary to intermittent unidirectional motion

74568T, 200 38A, F16H 2912, H01H 4310

Patent

active

045663475

ABSTRACT:
A programmer comprising a cam unit which can be rotated manually in a first direction by a control shaft 23 able to occupy, under the action of a pawl device comprising a spring, any one of several equidistant stable angular stop positions spaced apart by the angular value of one step, before passing on each occasion through a limiting unstable intermediate angular position, after which this shaft is brought in a resilient manner by the pawl device towards the following stable angular stop position. A motor and drive transmission system are able, when controlled, to rotate the cam unit step by step in said first direction. The cam unit is connected to rotate with the control shaft, with an angular clearance less than the angle through which the shaft travels, between any one of its stable angular stop positions and the limiting unstable intermediate angular position which follows.

REFERENCES:
patent: 1919255 (1933-07-01), Porter
patent: 2536256 (1951-01-01), Berg
patent: 2805293 (1957-09-01), Daugherty
patent: 2913913 (1959-11-01), Weber
patent: 2984716 (1961-05-01), Timm et al.
patent: 3042762 (1962-07-01), Palladino
patent: 3597982 (1971-08-01), Julien-Davin
patent: 3627937 (1971-12-01), Swanke
patent: 4406953 (1983-09-01), Tanaka et al.

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