Interchangeable electric motor for powered garden implements
OwnerJohn Arthur Notaras, Angelo Lambrinos Notarasinventors
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Abstract
An electric motor sub-assembly with a gear train or drive train and clutch, which replaces a conventional internal combustion engine unit including its conventional clutch. The speed increase or decrease of the gear train is selected so that irrespective of whether an induction or universal electric motor is used, the speed of the clutch substantially replicates the speed of the conventional internal combustion engine clutch. As a consequence, a wide range of implement frames can accept either the internal combustion engine unit or the electric motor sub-assembly to create differently powered implements with a maximum of commonality of parts.
Claims9
A garden implement comprising a tiller, cultivator, trimmer, brush cutter, hedger, lawn edger or the like, said garden implement having a frame and a rotatable member mounted on said frame for rotation relative thereto, an internal combustion engine unit having an output shaft and being mountable on said frame, and an electric motor sub-assembly mountable on said frame;
- said garden implement normally being powered by said internal combustion engine unit;
- said electric motor sub-assembly comprising an electric motor having a motor output shaft, a drive train connected with said shaft and including a gear train and a clutch;
- said gear train being selected to convert the speed of rotation of said electric motor output shaft to the substantially equivalent speed of rotation of said internal combustion engine output shaft;
- a housing for said sub-assembly;
- said electric motor, drive train and electric motor shaft being mounted in said housing;
- and both said housing and said internal combustion engine unit having a corresponding attachment means to permit said electric motor sub-assembly to be connected with said frame in lieu of said internal combustion engine unit, and to permit said internal combustion engine unit to be connected to said frame in lieu of said electric motor sub-assembly.
Dependencies are inferred from the claim text.