公开(公告)号：US20210299843A1

公开(公告)日：2021-09-30

申请号：US17346800

申请日：2021-06-14

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jonathan E. Abbott ,  Timothy R. Obermann ,  John S. Dey, IV ,  Benjamin R. Suhr ,  Richard A. Ryer ,  Maxwell L. Merget ,  Douglas R. Fieldbinder

IPC: B25F5/00 ,  B25D16/00 ,  H02K7/00 ,  H02K11/21 ,  B25F5/02 ,  B25B21/02 ,  H02K7/14

Abstract: Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool, and an orientation sensor configured to measure an orientation of the housing. The power tool includes an electronic processor coupled to a switching network and a trigger. To implement the kickback control, the electronic processor is configured to receive measurements of the angular velocity of the housing, receive measurements of the orientation of the housing, determine a binding condition of the power tool based on the measurements of the angular velocity and the measurements of orientation, and control the switching network to cease driving of the brushless DC motor.

公开(公告)号：US20210229258A1

公开(公告)日：2021-07-29

申请号：US17231524

申请日：2021-04-15

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jonathan E. Abbott ,  Timothy R. Obermann ,  John S. Dey, IV ,  Benjamin R. Suhr ,  Richard A. Ryer ,  Maxwell L. Merget ,  Douglas R. Fieldbinder

IPC: B25F5/00 ,  B25F5/02 ,  H02K7/14 ,  H02K7/00 ,  H02K11/21 ,  B25D16/00 ,  B25B21/02

Abstract: Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool about the rotational axis. The power tool includes an electronic processor coupled to the switching network and the movement sensor and configured to implement kickback control of the power tool. To implement the kickback control, the electronic processor is configured to control the switching network to drive the brushless DC motor, receive measurements of the angular velocity of the housing of the power tool from the movement sensor, determine that a plurality of the measurements of the angular velocity of the housing of the power tool exceed a rotation speed threshold, and control the switching network to cease driving of the brushless DC motor in response to determining that the plurality of the measurements of the angular velocity exceed the rotation speed threshold.

公开(公告)号：US11072058B2

公开(公告)日：2021-07-27

申请号：US16201111

申请日：2018-11-27

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Andrew R. Wyler ,  Nathan T. Armstrong ,  Jason D. Thurner ,  Troy C. Thorson ,  John S. Scott ,  Jeremy R. Ebner ,  Daniel R. Garces ,  Ryan A. Dedrickson ,  Luke J. Skinner ,  Benjamin R. Suhr

IPC: B25C1/06 ,  B25C1/04

Abstract: A gas spring-powered fastener driver including a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter operable to move the driver blade from the driven position to the ready position, a transmission for providing torque to the lifter, a first clutch mechanism permitting a transfer of torque to an output shaft of the transmission in a single rotational direction, and a second clutch mechanism limiting an amount of torque transferred to the transmission output shaft and the lifter.

公开(公告)号：US10173310B2

公开(公告)日：2019-01-08

申请号：US15017291

申请日：2016-02-05

Applicant: Milwaukee Electric Tool Corporation

Inventor： Andrew R. Wyler ,  Nathan T. Armstrong ,  Jason D. Thurner ,  Troy C. Thorson ,  John S. Scott ,  Jeremy R. Ebner ,  Daniel R. Garces ,  Ryan Allen Dedrickson ,  Luke J. Skinner ,  Benjamin R. Suhr

IPC: B25C1/06 ,  B25C1/04

Abstract: A gas spring-powered fastener driver including a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter operable to move the driver blade from the driven position to the ready position, a transmission for providing torque to the lifter, a first clutch mechanism permitting a transfer of torque to an output shaft of the transmission in a single rotational direction, and a second clutch mechanism limiting an amount of torque transferred to the transmission output shaft and the lifter.