Mobile garden appliance with motor drive for tool and wheels

Details Mobile garden appliance with motor drive for tool and wheels Mobile garden appliance with motor drive for tool and wheels

1993-07-09

1995-09-05

Melius, Terry Lee

Harvesters

Motorized harvester

With condition-responsive operation

56DIG4, 56DIG6, A01D 3476

Patent

active

054470196

ABSTRACT:
In a garden appliance provided with a traveling drive, the tools, for example a mowing tool, are driven by a motor which is also coupled to the drive wheels. Connected between the motor and drive wheels is a gear which reduces the speed of the drive wheels with increasing output requirement or increasing torque, and vice versa. As a result, it is, for example, effected that in the case of a high resistance to mowing the advance of the mower is less than in the case of a low resistance to mowing. A V-belt pulley gear with variable radii can be used as the gear, the axial adjustment of the V-belt pulley halves being effected as a function of the load torque. This setting can be performed against the action of return springs via helical threads which can be constructed, for example, in the form of a ball self-closure.

REFERENCES:
patent: 4078442 (1978-03-01), Bendall
patent: 4169392 (1979-10-01), McDonald
patent: 5191755 (1993-03-01), Gryspeerdt

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