Guide for the precise control of portable power tools
OwnerBernard J. Bessetteinventor
Life of this patent
Estimating the term…
Abstract
A tool trolley or guide for the precise control of hand held power tools such as a circular saw, saber saw, router or other portable power tool to guide the tool along a straight guide path. A chassis upon which the power tool is attached has a trolley like connection with a guide rail releasably secured to a work piece. The chassis has an opening through which the cutters of the tool extend. Tools are mounted on mounting plates which in turn are releasably mounted on the chassis.
Claims14
A portable guide mechanism for linearly guiding a hand held tool having a power driven cutter relative to a horizontally disposed work piece comprising:
- a linear guide rail having
- a flat bottom flange adapted to rest on and be releasably secured to said work piece and
- first and second parallel walls extending upwardly from laterally opposite sides of said flat bottom flange, said first and second walls being cylindrically shaped to present a pair of parallel guide tracks each having a 180° of upward facing surface and
- a chassis including
- a flat panel having
- a horizontal bottom surface adapted for sliding engagement with said work piece,
- a top surface adapted for securely mounting said hand held power driven cutting tool and
- an opening through which said cutter extends when cutting said work piece and
- a guide structure secured to one side of said chassis having a pair of horizontally spaced self lubricating plastic guide blocks spaced horizontally from one another in the linear direction of said guide rail, said blocks having a semi-circular surfaces complimentary to and slidingly engageable with said upward facing surfaces of said tracks to guide said chassis linearly during cutting of said work piece, said linear guide rail and said guide structure having a configuration permitting said chassis to be lowered onto said guide tracks and said work piece when initiating a cut in said workpiece other than at its periphery.
The portable guide mechanism of claim to 1 wherein said guide blocks are spaced from one another a sufficient distance to permit the lower part of a circular saw motor to be disposed there between when used with said guide mechanism to cut said work piece.
A portable guide mechanism for linearly guiding a hand held tool having a power driven cutter relative to a horizontally disposed work piece comprising:
- a linear guide rail having
- a flat bottom flange adapted to rest on and be releasably secured to said work piece and
- first and second parallel walls extending upwardly from laterally opposite sides, respectively, of said flat bottom flange, said parallel walls having cylindrically shaped tops presenting a pair of parallel tracks with 180° of upward facing surface,
- a chassis including
- a flat panel having
- a horizontal bottom surface adapted for sliding engagement with said work piece,
- a top surface adapted for securely mounting said hand held power driven cutting tool and
- an opening through which said cutter extends when cutting said work piece and
- a guide structure secured to one side of said chassis having a pair of horizontally spaced self lubricating guide blocks spaced horizontally from one another in the linear direction of said guide rail, said guide blocks having semicylindrical surfaces complementary to said cylindrical of said shaped tops, respectively, said guide blocks being engageable with said guide track to guide said chassis linearly during cutting of said work piece, said linear guide track and said guide structure having a configuration permitting said chassis to be lowered onto said guide track and said work piece when initiating a cut in said work piece other than at its periphery.
Dependencies are inferred from the claim text.