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US 11,992,921 B2Granted
Impact wrench having dynamically tuned drive components and method thereof
AssigneeIngersoll-Rand Industrial U.S., Inc.
InventorsMark T. McClung, Timothy R. Cooper, Warren A. Seith
Life of this patent
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Abstract
The present invention provides methods and systems an impact wrench having dynamically tuned drive components, such as an anvil/socket combination, and related methodology for dynamically tuning the drive components in view of inertia displacement, as well as stiffness between coupled components, and with regard to impact timing associated with clearance gaps between the component parts.
Claims20
A power tool assembly comprising:
- a housing configured to house a motor;
- a drive system including:
- a hammer assembly, the hammer assembly including a hammer being driven by the motor;
- an anvil having an anvil jaw, the anvil jaw being periodically engaged by the hammer as the hammer is being driven, the anvil further including:
- a supporting flange connected to the anvil jaw, wherein the supporting flange supports the anvil jaw, and
- a socket engagement portion integral to the anvil located opposite the anvil jaw, the socket engagement portion having a cylindrical wall forming a generally cylindrical open cavity;
- and
- a socket having a generally cylindrical first end and a second end, the socket first end having a first diameter and defining an anvil engagement portion configured to be removably fitted directly into the open cavity of the socket engagement portion, the socket second end having a second diameter configured to receive a fastener opposite the anvil engagement portion;
- wherein a total inertia of the drive system is split between the inertia of the hammer, the inertia of the anvil, and the inertia of the socket.
6 more elements
A drive system of an impact wrench comprising:
- a hammer assembly, the hammer assembly having a hammer being driven by the motor;
- an anvil having an anvil jaw, the anvil jaw being periodically engaged by the hammer as the hammer is being driven, the anvil further including:
- a supporting flange connected to the anvil jaw, wherein the supporting flange supports and strengthens the anvil jaw, and
- a socket engagement portion integral to the anvil located opposite the anvil jaw, the socket engagement portion having a cylindrical wall forming a generally cylindrical open cavity;
- and
- a socket having a generally cylindrical first end and a second end, the socket first end having a first diameter and defining an anvil engagement portion configured to be removably fitted directly into the open cavity of the socket engagement portion,
- the socket second end having a second diameter configured to receive a fastener opposite the anvil engagement portion;
- and
- wherein the total inertia of the drive system is divided between the inertia of the hammer, the inertia of the anvil, and the inertia of the socket.
6 more elements
Dependencies are inferred from the claim text.