Importance

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Abstract

A cordless router motor unit has a metal barrel and a plastic battery housing. A DC motor is housed inside of the barrel and drives an output shaft and up to a 1/2' collet chuck. The battery housing holds a power switch and is fastened to the barrel. A battery is releasably attached to the battery housing through a sliding engagement in a direction normal to the longitudinal axis of the motor unit. When the battery is in its locked position relative to the battery housing, the center of gravity of the battery is balanced over the output shaft. The power switch is positioned radially from the DC motor and below the battery so that the router motor unit has a low center of gravity. The battery provides at least 18V and the maximum power output of the DC motor is at least 5/8 hp. The barrel can be sized to engage with a router base which also engages with a corded router motor unit.

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First Claim