Machine element or mechanism – Mechanical movements – Rotary to intermittent unidirectional motion
Patent
1980-08-21
1983-04-05
Dorner, Kenneth
Machine element or mechanism
Mechanical movements
Rotary to intermittent unidirectional motion
74123, 74836, 74822, 74571M, F16H 2904, B23Q 1700
Patent
active
043787070
ABSTRACT:
An indexing apparatus operated by a unidirectionally rotating drive shaft. The drive shaft and a driven member are rotatingly supported by a base in a spaced apart manner. An interconnecting link extends between the drive shaft and the driven member and is pivotally pinned in an offset manner at a first end to the drive shaft. A second end of the interconnecting link is pivotally pinned in an offset manner to the driven member. When the drive shaft rotates it oscillates the driven member in opposite first and second directions through an arc. A releasable engaging device carried by the driven member releasably engages an index member rotatably carried by the base. The releasable engaging device engages the index member during oscillation of the driven member in a first direction, and a timed locking means operated in timed relation to the rotation of the drive shaft selectively engages the index member locking it against rotation in the second direction and releasing the index member for rotation during oscillation of the driven member in the first direction. An arc adjusting device is provided to vary the arc through which the driven member oscillates.
REFERENCES:
patent: 276292 (1883-04-01), Seymour
patent: 2437530 (1948-03-01), Hoopes
patent: 3103825 (1963-09-01), Bryant
patent: 3135402 (1964-06-01), McCanse
Dorner Kenneth
Jackson Machine Products
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