Switch mechanism

Details Switch mechanism Switch mechanism

1995-11-01

1998-03-10

Jones, Eugenia

Cutlery

Cutting tools

Plural cooperating blades

30216, 30381, 192131R, 200 4317, 200321, A01G 3053, F16P 318, B26B 1902

Patent

active

057247374

ABSTRACT:
A manual tool is driven by an electric motor, and has a primary handle and a secondary handle arranged at a distance from each other. A switch is situated in the manual tool and can only be switched on by the simultaneous actuation of two contact mechanisms, one arranged in each handle, the motor being switched off when grip on either handle is released. The tool further comprises an initiating device in the form of a safety interlock mechanism which is adapted to prevent actuation of the switch, unless the safety interlock mechanism is actuated prior to actuation of the contact mechanism arranged in the primary handle. The switching mechanism is particularly suitable for a hedge clipper or chainsaw, especially a cordless tool.

REFERENCES:
patent: 2182018 (1939-12-01), Eickman
patent: 4207675 (1980-06-01), Causey et al.
patent: 4381037 (1983-04-01), Cuneo
patent: 4569431 (1986-02-01), Roeker
patent: 4900881 (1990-02-01), Fischer
patent: 5076411 (1991-12-01), Kramer et al.
patent: 5145044 (1992-09-01), Kramer et al.
patent: 5150523 (1992-09-01), McCurry
patent: 5369236 (1994-11-01), Nickels, Jr.

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