Torque stick and wrench
AssigneeMilwaukee Electric Tool Corporation
InventorBrian J. Doyle
Life of this patent
Estimating the term…
Abstract
A torque stick and torque wrench combination is provided that allows attachment of the torque stick to an impact tool to quickly fasten a nut or lug to an approximate desired torque. The operator can attach a torque wrench to an aperture of the torque stick to complete the fastening operation and achieve higher accuracy on the applied torque than a torque stick alone. In this way, the combination torque stick and torque wrench enable a greater degree of accuracy on the fastener's torque. The operator can also complete the fastening process without disassembling the connection of the torque stick from the lug.
Claims10
A torque stick, comprising:
- an elongated shaft, the elongated shaft comprising a flex region and extending along a longitudinal axis from a first end to a second end opposite the first end;
- a socket at the first end of the elongated shaft that is configured to couple to a rotary tool;
- an impact tool attachment at the second end of the elongated shaft that couples to a fastener;
- a torquing aperture along the elongated shaft between the first end and the second end, the torquing aperture configured to receive a wrench within the torquing aperture of the torque stick;
- and
- a dynamic torque specification based on a thickness and an elastic modulus of the elongated shaft, wherein the dynamic torque specification indicates an applied dynamic torque limit under dynamic impact load;
- wherein, when the torque stick is under a dynamic impact load from the rotary tool above the dynamic torque specification, the flex region of the elongated shaft deflects such that a portion of the dynamic impact load is absorbed by the torque stick and the torque applied by the impact tool attachment is less than or equal to the dynamic torque specification.
Dependencies are inferred from the claim text.