公开(公告)号：US20220305631A1

公开(公告)日：2022-09-29

申请号：US17838629

申请日：2022-06-13

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Troy C. Thorson ,  Matthew J. Mergener ,  John S. Dey, IV ,  Toby Lichtensteiger ,  Jacob P. Schneider ,  Trent Sheffield

IPC: B25B23/147 ,  B25B21/00 ,  B25B23/14

Abstract: A transducer assembly for use in a power tool including a housing, a motor, an output shaft that drives a workpiece about a central axis, and a transmission. The transducer assembly includes a transducer positioned between the motor and the transmission. The transducer including an inner hub being rotationally affixed to the housing, an outer rim affixed to a rotatable component of the transmission, a plurality of webs extending radially outward from the inner hub to the outer rim, and a sensor affixed to each of the webs for detecting strain of each of the webs in response to a reaction torque applied to the transmission from the output shaft. A width of each of the webs gradually tapers from at least one of the outer rim or the inner hub toward a midpoint of each of the webs in a direction perpendicular to the central axis.

公开(公告)号：US10357871B2

公开(公告)日：2019-07-23

申请号：US15138962

申请日：2016-04-26

Applicant: Milwaukee Electric Tool Corporation

Inventor： Troy C. Thorson ,  Matthew J. Mergener ,  John S. Dey, IV ,  Toby Lichtensteiger ,  Jacob P. Schneider ,  Trent Sheffield

IPC: B25B23/147 ,  B25B23/14 ,  B25B21/00

Abstract: A transducer assembly for use in a power tool includes a bracket affixed to a housing of the power tool and a protrusion having an arcuate outer periphery. The protrusion is offset from a central axis of the bracket and extends from the bracket in a direction parallel with the central axis. The transducer assembly also includes a transducer having an inner hub with an aperture through which a distal end of the protrusion is received. The arcuate outer periphery of the protrusion is in substantially line contact with a wall segment at least partially defining the aperture. The transducer also includes an outer rim affixed to a ring gear of the power tool, a flexible web interconnecting the inner hub to the rim, and a sensor affixed to the flexible web for detecting strain of the flexible web in response to a reaction torque applied to the ring gear.

公开(公告)号：US20240399546A1

公开(公告)日：2024-12-05

申请号：US18800288

申请日：2024-08-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Troy C. Thorson ,  Matthew J. Mergener ,  John S. Dey, IV ,  Toby Lichtensteiger ,  Jacob P. Schneider ,  Trent Sheffield

IPC: B25B23/147 ,  B25B21/00 ,  B25B23/14

Abstract: A rotary power tool may include a main housing, a motor positioned within the main housing, a handle extending from the main housing, a trigger that is configured to activate the motor when depressed, and a control board disposed within the handle and including a microcontroller (MCU), a first Hall sensor, and a second Hall sensor. The trigger includes a trigger body, a holder fixed to the main housing, the trigger body being movable relative to the holder along a longitudinal axis, an arm fixed to the trigger body and having a magnet holder that receives a magnet, and a spring for biasing the trigger body away from the holder. The first Hall sensor and the second Hall sensor are configured to detect depression of the trigger and emit signals to the MCU for controlling operation of the motor.

公开(公告)号：US12059778B2

公开(公告)日：2024-08-13

申请号：US17838629

申请日：2022-06-13

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Troy C. Thorson ,  Matthew J. Mergener ,  John S. Dey, IV ,  Toby Lichtensteiger ,  Jacob P. Schneider ,  Trent Sheffield

IPC: B25B23/147 ,  B25B21/00 ,  B25B23/14

CPC classification number: B25B23/147 ,  B25B21/00 ,  B25B23/141

Abstract: A transducer assembly for use in a power tool including a housing, a motor, an output shaft that drives a workpiece about a central axis, and a transmission. The transducer assembly includes a transducer positioned between the motor and the transmission. The transducer including an inner hub being rotationally affixed to the housing, an outer rim affixed to a rotatable component of the transmission, a plurality of webs extending radially outward from the inner hub to the outer rim, and a sensor affixed to each of the webs for detecting strain of each of the webs in response to a reaction torque applied to the transmission from the output shaft. A width of each of the webs gradually tapers from at least one of the outer rim or the inner hub toward a midpoint of each of the webs in a direction perpendicular to the central axis.

公开(公告)号：US20190283222A1

公开(公告)日：2019-09-19

申请号：US16433288

申请日：2019-06-06

Applicant: Milwaukee Electric Tool Corporation

Inventor： Troy C. Thorson ,  Matthew J. Mergener ,  John S. Dey, IV ,  Toby Lichtensteiger ,  Jacob P. Schneider ,  Trent Sheffield

IPC: B25B23/147 ,  B25B23/14 ,  B25B21/00

Abstract: A rotary power tool comprises a motor, an output shaft that receives torque from the motor, a clutch positioned between the motor and the output shaft for selectively engaging the output shaft to the motor, and a transducer for detecting an amount of torque transferred through the clutch to the output shaft. The clutch is capable of being actuated from a first mode in which the output shaft is engaged to the motor, to a second mode in which the output shaft is disengaged from the motor, in response to feedback from the transducer of the detected amount of torque transferred through the clutch.

公开(公告)号：US20160318165A1

公开(公告)日：2016-11-03

申请号：US15138962

申请日：2016-04-26

Applicant: Milwaukee Electric Tool Corporation

Inventor： Troy C. Thorson ,  Matthew J. Mergener ,  John S. Dey, IV ,  Toby Lichtensteiger ,  Jacob P. Schneider ,  Trent Sheffield ,  Jeffrey M. Wackwitz

IPC: B25B23/147 ,  B25B21/00 ,  G01L3/10 ,  B25B23/14

CPC classification number: B25B23/147 ,  B25B21/00 ,  B25B23/141

Abstract: A transducer assembly for use in a power tool includes a bracket affixed to a housing of the power tool and a protrusion having an arcuate outer periphery. The protrusion is offset from a central axis of the bracket and extends from the bracket in a direction parallel with the central axis. The transducer assembly also includes a transducer having an inner hub with an aperture through which a distal end of the protrusion is received. The arcuate outer periphery of the protrusion is in substantially line contact with a wall segment at least partially defining the aperture. The transducer also includes an outer rim affixed to a ring gear of the power tool, a flexible web interconnecting the inner hub to the rim, and a sensor affixed to the flexible web for detecting strain of the flexible web in response to a reaction torque applied to the ring gear.

Abstract translation: 用于电动工具的换能器组件包括固定在动力工具的壳体上的支架和具有弧形外周边的突起。 突起从支架的中心轴线偏移，并从支架沿平行于中心轴线的方向延伸。 换能器组件还包括具有内部毂的换能器，内部毂具有孔，突出部的远端通过该孔被接收。 突起的弓形外周与至少部分地限定孔的壁段基本上线接触。 传感器还包括固定到动力工具的环形齿轮的外缘，将内轮毂与轮辋相互连接的柔性腹板，以及固定到柔性腹板上的传感器，用于响应于施加的反作用扭矩来检测挠性腹板的应变 到齿圈。