Mechanism for converting oscillatory rotation of input shaft to

Details Mechanism for converting oscillatory rotation of input shaft to Mechanism for converting oscillatory rotation of input shaft to

1993-10-08

1994-10-11

Laub, David W.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to intermittent unidirectional...

74143, 74435, F16H 2702, F16H 5517

Patent

active

053536592

ABSTRACT:
A mechanism is disclosed for converting oscillatory rotation of an input shaft to unidirectional rotation of an output shaft. An input shaft journalled to a frame is rotatable about an input axis, over a range of rotational positions, between a forward limit and a reverse limit. An output shaft journalled to the frame is rotatable about an output axis, which is normal to the input axis. Three bevel gears are employed, namely a first gear coupled to the input shaft, a second gear coupled to the input shaft and spaced axially from the first gear, and a third gear coupled to the output shaft. The bevel teeth of the three gears are arranged in peripheral arrays covering cover less than one half of the entire periphery of each gear, so that the bevel teeth of the third gear intermesh only with the bevel teeth of the first gear whenever the input shaft rotates from the reverse limit toward the forward limit, and so that the bevel teeth of the third gear intermesh only with the bevel teeth of the second gear whenever the input shaft rotates from the forward limit toward the reverse limit.

REFERENCES:
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patent: 319513 (1885-06-01), Schulze-Berge
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patent: 4825512 (1989-05-01), Tremper et al.
patent: 4862759 (1989-09-01), Trevelyan et al.
patent: 5136888 (1992-08-01), Nix
Pictorial Handbook of Technical Devices, Chemical Publishing Co., Inc. (1971) pp. 60 and 61-Grafstein et al.

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