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US 12,752,411 B2Granted
Adapter for rotary hammer
AssigneeMilwaukee Electric Tool Corporation
InventorJacob J. Konieczka
Life of this patent
Estimating the term…
Abstract
A rotary hammer includes a housing having a chuck, an anvil moveable axially within the housing, an adapter removably coupled to the chuck. The adapter includes an input shaft that receives axial force from the anvil and a drill bit configured to impact a workpiece. The input shaft defines an input axis, and the drill bit defines an output axis, the input axis being spaced from the output axis.
Claims13
A rotary hammer comprising:
- a housing including a chuck;
- an anvil moveable axially within the housing;
- and
- an adapter removably coupled to the chuck, the adapter including
- an adapter housing,
- an input shaft being axially movable relative to the adapter housing and having a first end and a second end opposite the first end, the first end extending outwardly from the adapter housing to receive axial force from the anvil, the second end configured to transmit the axial force from the anvil to the adapter housing, and
- a drill bit extending outwardly from the adapter housing and configured to impact a workpiece, wherein axial motion of the input shaft is imparted onto the adapter housing through the second end of the input shaft, and wherein the adapter housing imparts the axial motion onto the drill bit,
- wherein the input shaft defines an input axis, the drill bit defines an output axis, and the input axis is spaced from the output axis.
5 more elements
An adapter for use with a power tool, the adapter comprising:
- a housing;
- an input shaft extending from the housing, the input shaft defining a first end, a second end opposite the first end, and an input axis extending between the first end and the second end, the first end spaced apart from the housing and configured to be inserted into the power tool such that the input shaft is coupled to the power tool via a chuck of the power tool to receive impacts from the power tool;
- and
- a drill bit having a first end and a second end opposite the first end, the first end contacting the housing, the second end extending from the housing, the drill bit defining an output axis and configured to receive the impacts from the input shaft,
- wherein the input axis is spaced apart from and parallel with the output axis,
- wherein the housing transmits the impacts received by the input shaft to the first end of the drill bit,
- wherein the input shaft includes a first portion extending from the first end toward the second end and a second portion extending from the first portion to the second end, the first portion positioned outside the housing and the second portion positioned within the housing, the first portion is longer than the second portion, and
- wherein a length of the first portion is longer than a length of the housing.
5 more elements
An adapter for use with a power tool, the adapter comprising:
- a housing having an output opening;
- an input shaft extending from the housing, the input shaft defining a first end, a second end opposite the first end, and an input axis extending between the first end and the second end, the first end spaced apart from the housing and configured to be inserted into the power tool such that the input shaft is coupled to the power tool via a chuck of the power tool to receive axial impacts and rotary motion from the power tool;
- and
- a gear mechanism positioned within the housing, the gear mechanism including an input gear coupled to the input shaft and an output gear positioned proximate the output opening, the output gear having a bore configured to receive a drill bit such that the drill bit extends outwardly from the housing through the output opening, the output gear defining an output axis that is spaced apart from and parallel with the input axis,
- wherein the housing is configured to transmit the axial impacts from the power tool to the drill bit, and wherein the gear mechanism is configured to transmit rotary motion from the power tool to the drill bit,
- wherein the input shaft includes a first portion extending from the first end toward the second end and a second portion extending from the first portion to the second end, the first portion positioned outside the housing and the second portion positioned within the housing, the first portion is longer than the second portion, and
- wherein a length of the first portion is longer than a length of the housing.
4 more elements
Dependencies are inferred from the claim text.