Anvil for an impact wrench
AssigneeMilwaukee Electric Tool Corporation
InventorsWei Chao Xu, Guang Hu
Life of this patent
Estimating the term…
Abstract
An anvil for use with an impact wrench includes a first end, a second end opposite the first end, a shank adjacent the first end, and a head adjacent the second end. The shank includes a diameter and an outer cylindrical surface that defines a longitudinal axis that extends centrally through the anvil between the first end and the second end. The head includes a plurality of planar faces and an outer cylindrical surface. The outer cylindrical surface defines a diameter of the head. A ratio between the diameter of the shank and the diameter of the head is between approximately 1:1 and approximately 1.35:1.
Claims20
An impact wrench comprising:
- a housing;
- a motor supported by the housing;
- an actuator operable to selectively energize the motor;
- a gear assembly coupled to the motor;
- and
- a drive assembly coupled to the gear assembly, the drive assembly operable to convert a continuous rotational force provided by the gear assembly to a striking rotational force;
- wherein the drive assembly includes an anvil to which the striking rotational force is applied, wherein the anvil comprises
- a first end,
- a second end opposite the first end,
- a shank proximate the first end, the shank having a diameter and an outer cylindrical surface that defines a longitudinal axis that extends centrally through the anvil between the first end and the second end, and
- a head proximate the second end, the head including a plurality of planar faces and an outer cylindrical surface, the outer cylindrical surface defining a diameter of the head;
- wherein a ratio between the diameter of the shank and the diameter of the head is between approximately 1:1 and approximately 1.35:1.
An anvil for use with an impact wrench, the anvil comprising:
- a first end;
- a second end opposite the first end;
- a shank proximate the first end, the shank having a diameter and an outer cylindrical surface that defines a longitudinal axis that extends centrally through the anvil between the first end and the second end;
- and
- a head proximate the second end, the head including a plurality of planar faces and an outer cylindrical surface, the outer cylindrical surface defining a diameter of the head;
- wherein a ratio between the diameter of the shank and the diameter of the head is between approximately 1:1 and approximately 1.35:1.
Dependencies are inferred from the claim text.