Lawn maintenance apparatus having a rotatable, key operated swit

Details Lawn maintenance apparatus having a rotatable, key operated swit Lawn maintenance apparatus having a rotatable, key operated swit

1998-01-13

2000-02-01

Pezzuto, Robert E.

Harvesters

Motorized harvester

With randomly-operative control of motor

56 167, A01D 3482

Patent

active

060189371

ABSTRACT:
An electric working machine having an electric motor and batteries for providing power to the motor is provided. Power for charging the batteries is provided to the working machine through a connector. A key member is provided which comprises a key body having one end for insertion into and removal from a switch, and an operation portion which is integrally or removably provided at the other end of the key body extending sideways from the key body. The connector is positioned to the side of the switch at a location where it is covered by the operating portion of the key member at a turned position of the key member when the switch is in a first state, such that the connection of the connector with an external power source is made impossible. Such arrangement ensures that a simple structure having a substantially reduced number of parts is used, to supply the electric power to the electric motor and it is impossible to charge the batteries when the switch is in one state, and it is impossible to supply the electric power to the electric motor and it is possible to charge the batteries when the switch is in another state. The switch can be switched from one state to the other state by a simple operation.

REFERENCES:
patent: 3696593 (1972-10-01), Thorud et al.
patent: 3982082 (1976-09-01), Thorud et al.
patent: 5085043 (1992-02-01), Hess et al.
patent: 5301494 (1994-04-01), Peot et al.
patent: 5819513 (1998-10-01), Braun et al.

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