Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1996-07-16
1998-08-18
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
74 22A, F16H 2140
Patent
active
057944776
ABSTRACT:
A transmission apparatus capable of mono-direction and dual-direction power transmission. It includes a mono-direction gear engageable with the output gear, a transversely slidable platform and an alternate dual-rotation actuating assembly. The alternate dual-rotation assembly includes a link having a first end, which is pivotally affixed to a third gear via a pin spaced apart from a center axis of the third gear, and a second end which is slidable on the vertical side wall of the platform; and a roller held in a roller seat which is slidably contacted by a compression spring. The link further includes first and second sides, the first side of the link having a teeth rack which is engageable with the output gear and the second side of the link is in contact with the roller. When the platform is moved transversely in one direction, the mono-direction gear engages with the third gear thus allowing the driving gear to transmit force in only one direction to the output spindle via the reducing gear set and the third gear. On the other hand, when the platform is moved transversely in an opposite direction, the mono-direction gear is disengaged from the output gear, and the teeth rack is engaged with the output gear through the roller and the compression spring thus enabling the output spindle to rotate alternately in both clockwise and counter-clockwise directions through the rotation of the pin on the third gear driven by the reducing gear set and driving gear.
REFERENCES:
patent: 1557126 (1925-10-01), Wilcox
patent: 2190572 (1940-02-01), Schottenberg
patent: 2526976 (1950-10-01), Smith
patent: 2560000 (1951-07-01), Sacchini
Herrmann Allan D.
Liauh W. Wayne
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