High-speed, hand-held reciprocating method for cutting, carving, sawing, chiseling, filing, sanding, and engraving
First Claim
1. A powered reciprocating hand-held assembly for expanding the capabilities of power rotary tools with flex rotor shafts comprising a two-piece enclosure wherein a front one-piece enclosure serves to slidably enclose a reciprocating piece having a cylindrical shaft protrusion portion and a concave void protrusion portion, wherein an end of said cylindrical shaft protrusion portion receives a tool holder, wherein an end of said concave void protrusion portion having an integral cam follower, said front one-piece enclosure further serves to captivate a cylindrical single row radial bearing and serves to enclose a rotating piece and serves to mate with a rear one-piece enclosure;
- said cam follower connecting to said rotating piece, said cylindrical single row radial bearing being located juxtaposed to said concave void protrusion portion;
wherein a rear one-piece enclosure encloses a means for converting rotary motion to reciprocal motion and serves to enclose a portion of the rotating end of a hand piece of a flex rotor shaft and serves to be firmly affixed to a flex rotor shaft and serves to be installed and removed from a flex rotor shaft and serves to mate with a front one-piece enclosure, a means for securing one of a plurality of reciprocative cutting tools to said assembly, and a means for securing said assembly to said flex rotor shaft of a power rotary tool wherein the previously unavailable expanded capabilities include reciprocative cutting, carving, sawing, chiseling, filing, sanding, and engraving of wood, wood-based products, metals, and plastics and engineering resins whereby a knowledgeable user can perform more detailed work on delicate work pieces than is possible from using a power rotary tool having only rotary cutting attachments.
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Accused Products
Abstract
A high-speed, hand-held attachment for flex rotor shafts of power rotary tools, and also for direct attachment to power rotary tools without flex rotor shafts, that converts rotary motion to reciprocating motion for precision control of cutting, carving, sawing, chiseling, filing, sanding, and engraving on delicate work pieces. The attachment is one assembly comprising a one-piece front one-piece enclosure (20), a rear one-piece enclosure (30), a high-speed bearing (22), a one-piece rotating piece (40) with integral cam groove, a one-piece reciprocating piece (50) with an integral cam follower on one end and with its other, exposed end accomodating the attachment of a chuck or collet and with geometry to prevent rotation, and a thumbscrew (32). Rotating piece (40) attaches directly to the rotary power source and provides the cam action drive to reciprocating piece (50). Bearing (22) provides rotative support for the other end of rotating piece (40). Reciprocating piece (50) slidably mounts in front one-piece enclosure (20). Front one-piece enclosure (20) and rear one-piece enclosure (30) are attached to each other and maintain proper alignment for rotating piece (40), bearing (22), and reciprocating piece (50). Thumbscrew (32) secures the attachment to the flex rotor shaft of a power rotary tool. A tool holder/collet is attached to the exposed end of reciprocating piece (50) whereby numerous types of cutting tools may be utilized. Alternative versions of the rear one-piece enclosure, (30A) and (30B), described herein, allow for attachment directly to power rotary tools without flex rotor shafts. Alternative versions of the reciprocating piece, (50A), (50B), and (50C), and of the rotating piece, (40A), are also described herein.
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Citations
12 Claims
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1. A powered reciprocating hand-held assembly for expanding the capabilities of power rotary tools with flex rotor shafts comprising a two-piece enclosure wherein a front one-piece enclosure serves to slidably enclose a reciprocating piece having a cylindrical shaft protrusion portion and a concave void protrusion portion, wherein an end of said cylindrical shaft protrusion portion receives a tool holder, wherein an end of said concave void protrusion portion having an integral cam follower, said front one-piece enclosure further serves to captivate a cylindrical single row radial bearing and serves to enclose a rotating piece and serves to mate with a rear one-piece enclosure;
- said cam follower connecting to said rotating piece, said cylindrical single row radial bearing being located juxtaposed to said concave void protrusion portion;
wherein a rear one-piece enclosure encloses a means for converting rotary motion to reciprocal motion and serves to enclose a portion of the rotating end of a hand piece of a flex rotor shaft and serves to be firmly affixed to a flex rotor shaft and serves to be installed and removed from a flex rotor shaft and serves to mate with a front one-piece enclosure, a means for securing one of a plurality of reciprocative cutting tools to said assembly, and a means for securing said assembly to said flex rotor shaft of a power rotary tool wherein the previously unavailable expanded capabilities include reciprocative cutting, carving, sawing, chiseling, filing, sanding, and engraving of wood, wood-based products, metals, and plastics and engineering resins whereby a knowledgeable user can perform more detailed work on delicate work pieces than is possible from using a power rotary tool having only rotary cutting attachments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- said cam follower connecting to said rotating piece, said cylindrical single row radial bearing being located juxtaposed to said concave void protrusion portion;
Specification