Harvesting header having timed double sickle toothed belt drive

Details Harvesting header having timed double sickle toothed belt drive Harvesting header having timed double sickle toothed belt drive

1987-07-14

1989-03-28

Weiss, John

Harvesters

Cutting

Cutter members

56296, 56 116, 474 63, 474205, A01D 3400

Patent

active

048152650

ABSTRACT:
Sprockets of a toothed belt drive for a double sickle harvesting header are carefully aligned relative to each other and to the toothed belt so that the belt can be twisted about its longitudinal axis during advancement along a closed loop path of travel in order to translate rotary motion about a first axis to rotary motion about a second axis which is inclined relative to the first axis. The toothed belt has semicylindrical teeth, and two idler pulleys contact a return portion of the belt to insure that the same are maintained in parallelism with grooves formed in sprockets of the mechanism in order to avoid imposition of side thrusts on the belt or undue wear on the teeth. The toothed belt reciprocates both sickles of the harvesting header in synchronous, timed fashion along directions opposite to each other so that vibrations which would otherwise be established by non-synchronous movement of the sickles are significantly dampened.

REFERENCES:
patent: 150655 (1874-05-01), Danfee
patent: 1301026 (1919-04-01), Yeaton
patent: 2691421 (1954-10-01), Swanson
patent: 2718790 (1955-09-01), Hughey
patent: 3546864 (1970-12-01), White
patent: 3941003 (1976-03-01), Garrison et al.
patent: 4246742 (1981-01-01), Clark et al.
patent: 4642071 (1987-02-01), Botton
patent: 4679999 (1987-07-01), Wetzel

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