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US 9,969,010 B2Granted
Hole saw drill guide
AssigneeRidge Tool Company
InventorsGlen R. Chartier, James Tunningley, Harald Krondorfer, Jörg Rosenthal
Life of this patent
Estimating the term…
Abstract
A hole saw drill guide is described. The drill guide can be used when drilling holes in pipe or tubes. The hole saw drill guide includes a guide tube base assembly and an arbor shaft assembly. The guide tube base assembly is chained or otherwise secured to a pipe. The arbor shaft assembly is removably engaged with the guide tube base assembly and during use of the device, rotates within a guide tube of the base.
Claims21
A hole saw drill guide comprising:
- a guide tube base assembly including a guide tube defining a distal edge, a hollow interior and a linear slot extending from the distal edge along at least a portion of the length of the guide tube;
- an arbor shaft assembly including a central shaft, an outer housing, a plurality of bearings for rotatably supporting the central shaft within the outer housing, and an outwardly projecting guide pin engaged with the outer housing;
- wherein the arbor shaft assembly is sized to be insertably received within the hollow interior of the guide tube and upon positioning the guide pin of the arbor shaft assembly within the slot defined by the guide tube, the central shaft of the arbor shaft assembly is rotatably supported within the guide tube of the guide tube base assembly while allowing linear displacement of the entire arbor shaft assembly relative to the guide tube base assembly, thereby coupling the outer housing of the arbor shaft assembly to the guide tube of the guide tube base assembly.
A hole saw drill guide comprising:
- a guide tube base assembly including a mounting base, a guide tube extending from the mounting base and defining a distal edge, a longitudinal axis, and endwall, a hollow interior and slot extending between the distal edge and the endwall along at least a portion of the length of the guide tube, the slot being parallel with the longitudinal axis;
- an arbor shaft assembly including a central shaft, an outer housing, a plurality of bearings for rotatably supporting the central shaft within the outer housing, and an outwardly projecting guide pin engaged with the outer housing;
- wherein the arbor shaft assembly is sized to be insertably received within the hollow interior of the guide tube and upon positioning the guide pin of the arbor shaft assembly within the slot defined by the guide tube, the central shaft of the arbor shaft assembly is rotatably supported within the guide tube of the guide tube base assembly,
- wherein the mounting base includes chain adjustment provisions that include a chain and an adjustment nut, such that rotation of the adjustment nut results in linear displacement of the chain to either lengthen or shorten the length of the chain and upon positioning and tightening the chain about a pipe or workpiece, the chain extends directly under a location at which a hole or aperture is to be formed.
1 more element
A hole saw drill guide comprising:
- a guide tube base assembly including a guide tube defining a hollow interior and an S-shaped slot extending along at least a portion of the length of the guide tube;
- an arbor shaft assembly including a central shaft, an outer housing, a plurality of bearings for rotatably supporting the central shaft within the outer housing, and an outwardly projecting guide pin engaged with the outer housing;
- wherein the arbor shaft assembly is sized to be insertably received within the hollow interior of the guide tube and upon positioning the guide pin of the arbor shaft assembly within the slot defined by the guide tube, the central shaft of the arbor shaft assembly is rotatably supported within the guide tube of the guide tube base assembly.
A hole saw drill guide comprising:
- a guide tube base assembly including a guide tube defining a distal edge, a hollow interior, a linear slot extending from the distal edge along at least a portion of the length of the guide tube, and at least one slot shoulder between the distal edge and the slot;
- an arbor shaft assembly including a central shaft, an outer housing, a plurality of bearings for rotatably supporting the central shaft within the outer housing, and an outwardly projecting guide pin engaged with the outer housing;
- wherein the arbor shaft assembly is sized to be insertably received within the hollow interior of the guide tube and upon positioning the guide pin of the arbor shaft assembly within the slot defined by the guide tube, the central shaft of the arbor shaft assembly is rotatably supported within the guide tube of the guide tube base assembly, thereby coupling the outer housing of the arbor shaft assembly to the guide tube of the guide tube base assembly.
Dependencies are inferred from the claim text.