公开(公告)号：US12186880B2

公开(公告)日：2025-01-07

申请号：US18000948

申请日：2021-06-10

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jeffrey S. Holly ,  Jacob N. Zimmerman ,  James C. Sitter ,  David A Bierdeman ,  Andrew R. Schauer ,  You Gen Liu

IPC: B25F5/02 ,  B25F1/02 ,  B25F3/00 ,  B25F5/00

Abstract: An oscillating power tool includes an outer housing, and an inner housing positioned within the outer housing. A motor and a drive mechanism are supported by the inner housing. The drive mechanism includes an output shaft that is rotational in an oscillating manner and that defines an output axis. A damping element is positioned between the inner housing and the outer housing through which the inner housing is mounted to the outer housing, thereby attenuating vibration transmitted to the outer housing from the inner housing. An over-travel limit member is positioned between the inner housing and the outer housing. In response to relative movement between the inner housing and the outer housing while the power tool is in use, the limit member is configured to prevent direct contact between the inner housing and the outer housing, inhibiting vibration produced by the motor and/or drive mechanism from bypassing the damping element.

公开(公告)号：US11951601B2

公开(公告)日：2024-04-09

申请号：US17584060

申请日：2022-01-25

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Beth E. Cholst ,  Troy C. Thorson ,  Jacob P. Schneider ,  Mackenzie J. Nick ,  Nathan Bandy ,  David A Bierdeman ,  Travis W. Leathrum ,  Mitchell T. Neuhoff ,  Mark C. Hughes ,  David C. Graf ,  Marcus Wechselberger

IPC: B25C1/06 ,  B25C1/04

CPC classification number: B25C1/047 ,  B25C1/041 ,  B25C1/06

Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a bottom-dead-center (BDC) position for driving a fastener into a workpiece and a drive unit for providing torque to move the driver blade from the BDC position toward the TDC position. A rotary lifter is engageable with the driver blade and configured to receive torque from the drive unit for returning the driver blade from the BDC position toward the TDC position. The lifter has a body, a drive pin coupled to the body, and a roller positioned on the drive pin. The roller includes an engagement section configured to receive an end portion of a tooth of the driver blade. The lifter includes a means for aligning the engagement section with the end portion of the tooth on the driver blade to facilitate meshing between the end portion and the roller.