Sickle drive with resonant spring on the nondriven end of the si

Details Sickle drive with resonant spring on the nondriven end of the si Sickle drive with resonant spring on the nondriven end of the si

1981-07-02

1983-09-06

Marcene, Gene

Harvesters

Cutting

Cutter members

56296, 56257, 74 60, 188378, A01D 5502, F16H 2300

Patent

active

044021747

ABSTRACT:
In order to provide a high cutting speed for a crop-cutting harvester (11), a torsion bar (101) is connected to the nondriven end of a crop-cutting sickle (28). The torsion bar (101) is connected to the sickle (28) by a lever (111 or 211) pivoting on the axis of the torsion bar. Counterweights (94, 131) may be added to adjust the resonant frequency, and hence, the resonant cutting speed. The use of a torsion bar on the nondriven end of the sickle, and none on the driven end, is believed to provide a high speed resonant sickle drive in which peak sickle forces are reduced.

REFERENCES:
patent: 273341 (1883-03-01), Blood
patent: 280902 (1883-07-01), Blood
patent: 2109085 (1938-02-01), Chilstrom
patent: 2724983 (1955-11-01), O'Conner
patent: 3112652 (1963-12-01), Freeborn
patent: 3148492 (1964-09-01), Naor
patent: 3538690 (1970-11-01), Hinks et al.
patent: 3624990 (1971-12-01), Sinder et al.
patent: 3796104 (1974-03-01), Templeton
patent: 4342186 (1982-08-01), Stikeleather
patent: 4342187 (1982-08-01), Shupert

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