Combination level adjust and self-tensioning belt assembly for m

Harvesters – Motorized harvester – Including motorized vehicle causing transit of harvester

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Details

56 153, 56 158, 56 163, 56DIG22, A01D 3526

Patent

active

041021142

ABSTRACT:
An implement for a tractor is provided with a height adjusting mechanism, including a control lever swingable in a horizontal plane about a fixed vertical axis and operably coupled with an articulate linkage for translating the horizontal swinging of the lever to vertical movement of the implement without creating a force moment thereacross. The articulate linkage spans a pivotal coupling between the main frame of the implement and a mounting bracket secured to the tractor such that the linkage operates to swing the bracket and frame toward and away from one another causing the pivotal coupling to move up and down. A belt drive on the implement is maintained in constant, substantially uniform tension by a shiftable idler pulley operably coupled with the control lever for automatic belt-tension adjustment in response to raising and lowering of the implement.

REFERENCES:
patent: 2972850 (1961-02-01), Ariens et al.
patent: 3199276 (1965-08-01), Hahn
patent: 3680292 (1972-08-01), McCanse
patent: 3910016 (1975-10-01), Saiia et al.

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