초록 ▼

A main body containing an electric motor reciprocally driving a rigid longitudinal extension which is frictionally suspended within a graspable sleeve may be held to guide a selected abrasive tool head coupled to the front end of the extension. Power may be supplied by a battery, rechargeable or rep

A main body containing an electric motor reciprocally driving a rigid longitudinal extension which is frictionally suspended within a graspable sleeve may be held to guide a selected abrasive tool head coupled to the front end of the extension. Power may be supplied by a battery, rechargeable or replaceable, or by alternating current through a cord. A vacuum connected to a sanding head having a porous pad backed by an airtight manifold and attachable to the main body may run on alternating current or a battery. The sleeve may be connected to the main body to provide a continuous uninterrupted exterior. The speed may be varied with use of a variable resistor. An appropriate length stroke is obtained with a sufficiently large diameter driven disc pivotally connected to the extension with a rigid link arm. The tool may be used for powered sanding, scraping, or scrubbing with a wire brush, a bristle brush or an absorbent pad. Other tasks such as filing, polishing, hoeing, et cetera, in which reciprocating abrasive work is performed can be similarly powered with attachment of an appropriate tool head.

대표청구항 ▼

[ What is claimed is:] [1.] An extended reciprocating tool, intended to drive any tool head adapted to perform any type of abrasive action including but not restricted to sanding, scraping, and scrubbing in a reciprocating stroke displacement, said extended reciprocating tool comprising:a graspable

[ What is claimed is:] [1.] An extended reciprocating tool, intended to drive any tool head adapted to perform any type of abrasive action including but not restricted to sanding, scraping, and scrubbing in a reciprocating stroke displacement, said extended reciprocating tool comprising:a graspable main body containing an electric motor, a power supply, a graspable sleeve, a rigid longitudinal extension, frictional suspension means, and a coupling;said graspable sleeve comprising a rigid longitudinal structure possessing a longitudinal interior through which said rigid longitudinal extension extends longitudinally;said rigid longitudinal extension possessing a rear end mechanically linked to said electric motor such that operation of said electric motor exerts a reciprocating drive upon said rear end of said rigid longitudinal extension;said frictional suspension means frictionally suspending said rigid longitudinal extension within said graspable sleeve such that reciprocal longitudinal displacement of said rigid longitudinal extension with respect to said graspable sleeve without direct contact between said rigid longitudinal extension and said graspable sleeve is facilitated;said rigid longitudinal extension possessing a front end terminating in said coupling, said coupling providing mechanical attachment of an abrasive tool head to said front end of said rigid longitudinal extension;operation of said electric motor within said graspable main body thereby causing reciprocation of said rigid longitudinal extension with respect to said graspable sleeve which may be grasped by one hand and held immobile with respect to the reciprocating rigid longitudinal extension;whereby mechanical attachment of a selected abrasive tool head upon said front end of said rigid longitudinal extension with said coupling, grasping of said main body with one hand, grasping of said sleeve with another hand, and operation of said electric motor effects powered reciprocal displacement of said tool head in a manner which is readily guided in the performance of a selected abrasive task at a remove from said main body.