Adjustable-stroke crank apparatus

Details Adjustable-stroke crank apparatus Adjustable-stroke crank apparatus

1979-10-09

1981-06-09

Dorner, Kenneth

Machine element or mechanism

Elements

Cranks and wrist pins

74603, F16C 304

Patent

active

042717205

ABSTRACT:
An apparatus for adjusting the stroke length of a crank rod includes a pair of plates having adjoining broad faces mounted on one of the faces of a flywheel. A crankpin or other means is located on the exposed part of the outer plate for connection of the crank rod. One of the plates has a spline member which is located off center with respect to the flywheel axis. The other plate has a grooved portion mateable with the spline member. The outer plate is detachably connected to the inner one and may be rotated with respect thereto, and then re-connected to provide positive change of the stroke length of the crank rod.

REFERENCES:
patent: 421297 (1890-02-01), Mills
patent: 1779981 (1930-10-01), Nickerson
patent: 2256605 (1941-09-01), Bier
patent: 2668726 (1954-02-01), Stewart et al.
patent: 2838956 (1958-06-01), Schneider
patent: 3161067 (1964-12-01), Moller

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