Wood sanding, grass and wood cutting electric drill attachment device

• US 4,317,282 A
• Filed: 06/30/1980
• Issued: 03/02/1982
• Est. Priority Date: 06/30/1980
• Status: Expired due to Term

• Current Assignee: Paul D. Pace
• Original Assignee: Paul D. Pace
• Inventors: Pace, Paul D.
• Primary Examiner(s): Bilinsky, Z. R.
• Application Number:
  US06/164,180
• Time in Patent Office: 610 Days
• Field of Search: 408/20, 30/122, 30/500, 30/210, 173/170, 144/134 D, 144/136 C, 403/349, 51/170 EB
• US Class Current: 30/122
• CPC Class Codes: A01D 34/412 having rotating cutters
• CPC Class Codes: B24B 23/06 with abrasive belts, e.g. with endless travelling belts; Accessories therefor
• CPC Class Codes: B25F 3/00 Associations of tools for different working operations with one portable power-drive means; Adapters therefor
• CPC Class Codes: Y10T 408/31 Convertible cutting means

Abstract

An attachment for a conventional portable electric drill, so as to serve for sanding wood, cutting grass or cutting wood; the attachment supporting either a frame having a pair of rollers around which an endless sanding belt is driven, the attachment otherwise supporting a base holding a rotatable circular saw blade, and the attachment still otherwise holding a frame having a rotatable shaft on which a grass cutting blade is mounted and enclosed under a protective shield.

Claims

1. A wood sanding, grass and wood cutting electric drill attachment device comprising a pair of side panels for mounting to an electric drill, each of said side panels having a first right-angled portion for projection forwardly of a drill when said side panels are mounted to a drill, said right-angled protion comprising a slot formed therethrough;

a belt fastening means for fastening said first portions of said side panels to a drill, said belt fastening means extending through each said slot, and fastens said side panels to a drill by enveloping the circumference of a drill at an optimal location;

an elongated housing mounted between and within said second elongated portions of said pair of side panels;

means for securing said housing therein;

a main shaft rotatably mounted in said housing, said housing having bearing means positioned therein for rotatably supporting said main shaft, said main shaft having a first end projecting outwardly beyond a first end of said housing adjacent said first right-angled portions, said first end of said main shaft being receivably mounted in a chuck of a drill, and a second end projecting substantially beyond the other end of said housing away from said first right-angled portions;

a truncated conically-shaped hood member having bearing means mounted therein;

said bearing means of said hood member rotatably supporting said second end of said main shaft, said hood member having its truncated portion positioned adjacent to said other end of said housing and flares outwardly therefrom away from said housing and said side panels, said hood member defining as angled attachment surface at the base thereof of elliptical cross-section whereby special attachment for cutting and sanding may be connected to a power drill for operation thereby.

2. The device according to claim 1, further comprising a grass cutting accessory, said grass cutting accessory comprising a housing having a flared shield;

a grass cutting circular saw mounted rotatably in said shield, said flared shield having a notch formed on a circumferential portion thereof through which a portion of said circular saw projects for cutting purposes;

said housing further comprising main body portion having a first surface integrally connected with said flared shield and a second canted surface, said second canted surface having an angle of inclination equal to the angle of inclination of the flared base of said hood member;

a shaft rotatably mounted in said housing having a first end connected to said circular saw at the axial center thereof, and a second end remote from said first end and projecting beyond said canted surface for mating engagement with said second end of said main shaft;

said housing further comprising bearing means for rotatably supporting said shaft;

said second end of said main shaft being formed with a splined opening and said second end of said shaft being formed with a splined outer surface for matingly engaging each other; and

means for securing said canted surface to said hood member.

3. The device according to claim 1, further comprising a wood cutting accessory, said wood cutting accessory comprising a circular plate member having a plurality of holes for attaching said plate member to said hood member at the flared base of said hood member, said plate member having an elongated slot formed along a portion thereof removed from the center thereof;

a circular saw mounted rotatably in said plate member through said elongated slot such that a portion of said saw projects above the top surface of said plate member and a portion thereof projects below the bottom surface of said plate member, said portion thereof projects below the bottom surface of said plate member, said portion of said saw projecting below said bottom surface of said plate member constituting the cutting location of the saw;

bracket means for mounting said saw on said plate member, and a secondary shaft rotatably mounted in said bracket means rotatably mounting said circular saw;

a gear box mounted on the top surface of said plate member having a first gear connected to said secondary shaft at the end thereof remote from said bracket means, and a second gear in meshing engagement with said first gear;

a tertiary shaft having said second gear affixed at one end thereof and having another end remote from said gear box and having a splined outer surface, said tertiary shaft projecting an acute angle relative to the plane containing the top surface of said plate member;

said second end of said main shaft having a splined opening for matingly receiving said splined outer surface of said another end of tertiary shaft.

4. The device according to claim 1, further comprising a wood sanding accessory, said wood sanding accessory comprising a frame rotatably mounting thereon a pair of spaced rollers;

an endless belt enveloping said pair of rollers by which wood may be sanded;

a pair of gear wheels, one of said gear wheels being mounted to one of said pair of rollers to rotate therewith, and the other of said pair of gear wheels having a shaft extending from the axial center thereof said shaft having at its free end a first bevel gear for rotation therewith;

a connecting shaft having a first end having a second end projecting through said frame and projecting from the planar surface of said frame at an acute angle, to allow for forward positioning of said acute angle to allow for forward positioning of said accessory relative to said hood member to facilitate movement of the accessory along an article it is sanding;

said frame further having means for securing said accessory to said hood member.