Harvesters – Motorized harvester – With selective control of drive means
Patent
1979-12-10
1981-09-22
Hafer, Robert A.
Harvesters
Motorized harvester
With selective control of drive means
192 17R, A01D 5518
Patent
active
042902568
ABSTRACT:
A throttle and brake control mechanism for a rotary lawnmower which is actuated by a single operating cable system. A centrifugal clutch interconnects the engine with the rotary blade of the lawnmower and the clutch includes an outer drum that is connected directly to the blade. On disengagement of the clutch at low throttle speeds, a brake acts to engage the clutch drum to stop free rotation of the drum and blade. The brake is released by an operating cable mechanism which interconnects a throttle operating lever mounted on the handle of the mower with the throttle on the engine. Movement of the operating lever from the idle position toward the full throttle position will initially release the brake from engagement with the clutch drum, and thereafter will operate the throttle to increase the engine speed, enabling the clutch to move to the engaged position to cause rotation of the blade.
REFERENCES:
patent: 4006528 (1977-02-01), Katsuya
patent: 4035994 (1977-07-01), Hoff
patent: 4044533 (1977-08-01), Wick
patent: 4141439 (1979-02-01), Lunde et al.
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