Mechanism for selectively converting a continuous rotary movemen

Details Mechanism for selectively converting a continuous rotary movemen Mechanism for selectively converting a continuous rotary movemen

1983-10-25

1986-07-29

Tapolcai, William E.

Machine element or mechanism

Mechanical movements

Oscillating to oscillating

F16H 2144

Patent

active

046025189

ABSTRACT:
The invention relates to a mechanism for selectively converting a continuous rotary movement in apparatus such as a high-speed-printing machine to a phase-related single pivoting movement of a control lever, with that single control movement following by an immediate reset to the initial position regardless of the time of activation of the mechanism. An entrainment lever supported on a supporting pin is coupled by means such as an excentric drive to the continuous rotary movement of the machine to generate a continuous pitching movement. A control lever is mounted for rotation on the same support pin and mounts a bistable mechanism (tensioning lever, pawl 3, tensioning spring 21) which in its first stable condition allows the entrainment lever to oscillate freely and which can assume its second stable condition when entrainment lever is in a dead center position, causing an engagement surface to be offered to the entrainment lever with the range of its pivoting movement. Control lever is spring-biased towards entrainment lever by return spring, and the control movement of control lever causes said bistable mechanism to be reset to its first stable condition by means of a reset lever.

REFERENCES:
patent: 3048045 (1962-08-01), Ryck et al.
patent: 4023423 (1977-05-01), Johne et al.
patent: 4271872 (1981-06-01), Pfarrwaller

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