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US 5,165,317 AGranted
Multi-use apparatus for the control of portable power tools
OwnerBrian D. Findlayinventor
Life of this patent
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OwnerBrian D. Findlayinventor
Estimating the term…
A portable machine tool device (1) which may be transported in knocked down form in a substantially flat case. In assembled form the device (1) includes a support frame (8) and a swinging parallelogram linkage frame (9) which pivots about a rear edge of the support frame (8) and can be locked in any radial orientation by clamp (20) at the front edge of the support frame (8). The front edge of the support frame (8) includes a rectangular protractor scale (28) which reads off the radial angle of the frame (9) relative to the central position of the support frame (8). A machine tool is secured and independently locked or allowed to slide longitudinally and transversely in a carriage (38) which itself can longitudinally slide along or be locked to the upper rails (31) or the frame (9). The frame (9) itself can be rigidly locked to or slide at a constant radial direction, relative to the support frame (8). The height of the machine tool held in holder (38) above the support frame (8) is controlled by turning handle (35) connected to threaded bar (34) so as to alter the angle of the end plate (33) relative to the lower rails (30) of the frame (9).
A machine tool device including a workpiece support frame adapted to support a workpiece in a working plane, a machine tool support frame adapted to support an attached machine tool for relative longitudinal sliding movement parallel to the working plane, said machine tool support frame including a parallelogram linkage frame having a top portion providing said longitudinal sliding movement of said machine tool, a bottom portion being pivotally attached to the workpiece support frame about a pivot point at a first side of said workpiece support frame so that said machine tool support frame can be swung about the pivot point within the working plane, two end portions linking together, and maintaining parallel, the top portion and the bottom portion, and a height control screw mechanism connected to two parts of the parallelogram linkage frame by two screwdriven variably separate mechanism parts so as to adjustably set and fix the distance between the top and bottom portions.
Dependencies are inferred from the claim text.