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US 4,055,893 AGranted
Saber saw control handle
AssigneeNone recorded
InventorLeo C. Saxe
Life of this patent
Estimating the term…
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AssigneeNone recorded
InventorLeo C. Saxe
Estimating the term…
A control handle for saber saws for turning the saw about the axis of reciprocation of the saw using a rotating handle having its axis parallel to the work surface and perpendicular to the axis of reciprocation of the saw blade. The control handle is the main handle for manipulating the saw and is mechanically linked to the saber saw blade to permit the saw blade to be guided by rotation of the handle. A transversely extending shaft parallel to the work surface is also linked to the saber saw blade and has knobs on its opposite ends so that the blade may be guided therewith.
A saber saw including a motor housing, a drive housing, a motor in the motor housing, a saber saw blade shaft mounted for reciprocation in the drive housing, means on the lower end of the saw shaft for securing a saber saw blade thereto, means extending from the motor housing to the drive housing for vertically reciprocating the saw shaft and saber saw blade secured thereto, said last mentioned means comprising a spur gear rotated by the gear on the end of the shaft of the motor, the spur gear causing a single eccentric drive pin mated therewith to impart vertical reciprocal motion to the saw shaft through a bushing and a coupling, a handle having its axis substantially parallel to the work surface and substantially perpendicular to the axis of reciprocation of the saw shaft, a transverse shaft extending through said drive housing, and means in the drive housing for linking both said handle and said transverse shaft to the reciprocating saber saw shaft to rotate the saw shaft upon rotation of said handle or said transverse shaft or both.
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
Pad sawing devices: with means to adjust the guide plate or with means to adjust the plane in which the saw blade moves
Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts ; Carrying or…:…
Planing
Term ended 1 Nov 1994 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to saber saw blade control mechanisms for guiding the blade.
The guiding handle mechanism of the present saber saw blade control includes a handle having its axis perpendicular to the axis of the blade reciprocation and mounted for rotation. The handle is linked to the blade mounting so that rotation of the handle about it axis causes rotation of the blade about the axis of reciprocation so as to guide the blade through the work.
The primary object of the invention is to provide a saber saw blade guide control in which the manipulating handle can be turned about its axis to turn the blade about the axis of reciprocation.
FIG. 1 is a side elevation of the invention;
FIG. 2 is a top plan view of the invention;
FIG. 3 is a vertical sectional view taken along the line 3--3 of FIG. 2 looking in the direction of the arrows;
Referring now to the drawings in detail wherein like reference characters indicate like parts throughout the several figures, the reference numeral 10 indicates generally a saber saw constructed in accordance with the invention.
The saber saw 10 includes a motor housing 11 having a base plate 12 secured thereto for engaging the work. A drive housing 13 is secured to one end of the motor housing 11 and a motor drive shaft 14 extends from a motor 15 in the housing 11 into the housing 13.
A vertically reciprocating shaft 16 is mounted in a bushing 17 at the lower end of the housing 13, a bushing 18 spaced thereabove and an upper bushing 19 also mounted in the housing 13 supporting the shaft 16 for vertical movement. A saw blade 20 is secured in the lower end of the shaft 16 by a screw 21.