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US 12,544,904 B2Granted
Hand tool with replaceable handle
AssigneeMilwaukee Electric Tool Corporation
InventorLucas M. Schmidt
Life of this patent
Estimating the term…
Abstract
A tool, such as a hammer including a handle configured to be replaceable is shown. In one embodiment, the handle includes a grip insert coupled to the shaft of the hammer and an outer grip surrounding the grip insert. In another embodiment, the hammer includes a shaft with a pair of opposing channels. The handle includes a grip insert with a pair of corresponding projections to couple to the pair of opposing channels and an outer grip surrounding the grip insert.
Claims16
A hammer comprising:
- a head including a striking portion;
- a shaft rigidly coupled to the head and extending along a longitudinal axis of the hammer;
- and
- a replaceable handle removably couplable to the shaft, the replaceable handle comprising:
- a grip insert coupled to the shaft;
- a grip coupled to and at least partially surrounding the grip insert;
- and
- a fastener securing the replaceable handle to the shaft, the fastener extending along the longitudinal axis of the hammer, wherein the grip extends past a distal end of the fastener;
- wherein a radially outward facing outer surface of the shaft engages the grip insert to resist rotation of the replaceable handle relative to the shaft during use of the hammer;
- and
- wherein a shape of a cross-section of the shaft taken perpendicular to a longitudinal axis of the shaft is octagonal such that the shaft resists rotation of the grip and the grip insert relative to the shaft during use.
8 more elements
A hammer comprising:
- a head;
- a shaft rigidly coupled to the head and extending along a longitudinal axis of the hammer;
- a replaceable handle coupled to the shaft, the replaceable handle comprising:
- a grip insert coupled to the shaft, the grip insert comprising:
- a first end;
- and
- a second end;
- wherein the first end is positioned between the head and the second end;
- and
- a grip coupled to the grip insert and surrounding the second end of the grip insert;
- and
- a fastener extending through the shaft and the second end of the grip insert to couple the replaceable handle to the shaft, the fastener comprising a longitudinal axis extending along the longitudinal axis of the hammer;
- wherein the grip provides a compressive force on the grip insert such that the replaceable handle securely engages with the shaft;
- and
- wherein a shape of a cross-section of the shaft taken perpendicular to a longitudinal axis of the shaft is polygonal such that the shaft resists rotation of the of the grip and the grip insert relative to the shaft during use.
12 more elements
A hammer comprising:
- a head;
- a shaft coupled to the head and extending along a longitudinal axis of the hammer;
- and
- a replaceable handle coupled to the shaft, the replaceable handle comprising:
- a grip insert coupled to the shaft, the grip insert comprising:
- a first end;
- and
- a second end;
- wherein the first end is positioned between the head and the second end;
- and
- a grip coupled to the grip insert;
- and
- a fastener, the fastener extending through the second end of the grip insert along the longitudinal axis of the hammer to securely couple the replaceable handle to the shaft, wherein the grip extends beyond an outermost portion of the fastener;
- wherein the shaft is a polygonal prism and an outer surface of the shaft engages the grip insert to resist rotation of the replaceable handle relative to the shaft.
11 more elements
Dependencies are inferred from the claim text.