Milwaukee Electric Tool Corporation

Braden A Roberts

Jacob Paul Schneider

Evan Brown

Zachary J Geschke

Benjamin J Farley

Anthony E Breitbach

John S Dev, Iv

Matthew W Roeber

Eric A Lembach

Nathan P Sievers

Iv John S Dey

An anvil for an impact tool including an impact receiving portion at an end of the anvil, the impact receiving portion including a lug having an impact receiving surface that receives impact from a hammer of the rotary power tool, a shank portion extending from the impact receiving portion, a drive portion located at an end of the shank portion opposite from the impact receiving portion, the drive portion including a plurality of drive surfaces configured to engage a tool bit, and a hardened layer formed on at least one of the drive portion or the impact receiving surface, the hardened layer having a higher hardness than a remaining portion of the anvil. The hardened layer is formed by a heating process.

Impact tool anvil and method of manufacture

An impact tool including a housing, a motor supported within the housing, a camshaft configured to be rotated by the motor, a hammer supported on the camshaft and configured to reciprocate along the camshaft, and an anvil configured to receive intermittent torque application from the hammer, the anvil including an impact receiving portion having a plurality of anvil lugs, a driving end portion opposite the impact receiving portion, the driving end portion configured to be coupled to a tool element, and a stress reducer formed in the impact receiving portion. The hammer is configured to reciprocate along the camshaft and impart rotational impacts to the plurality of anvil lugs, and the stress reducer is configured to dissipate stresses in the impact receiving portion caused by impacts from the hammer.

Impact tool and anvil

A rotary impact tool includes a motor housing, an electric motor supported in the motor housing, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece. The drive assembly includes an anvil including an anvil lug and a hammer that is both rotationally and axially movable relative to the anvil. The hammer includes a hammer lug for imparting the consecutive rotational impacts upon the anvil lug. The rotary impact tool further comprises a printed circuit board assembly including a sensor that is configured to detect rotation of the anvil. The printed circuit board assembly is spaced from the anvil to define an axial gap therebetween.

Rotary impact tool

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Brookfield, WI, United States of America

Braden A Roberts