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    CHISEL HAMMER
    21.
    发明申请
    CHISEL HAMMER 有权

    公开(公告)号：US20220371172A1

    公开(公告)日：2022-11-24

    申请号：US17749703

    申请日：2022-05-20

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Troy C. Thorson ,  Beth E. Cholst ,  Matthew C. Cassabaum ,  Taylor Crabb

    IPC: B25D17/06 ,  B25D11/04

    Abstract: The present disclosure is directed to a power tool adapted to impart axial impacts to a tool bit. The power tool includes a housing, an electric motor, and a barrel. The power tool also includes a reciprocation drive assembly coupled to the electric motor and configured to convert torque from the electric motor to reciprocating motion of a piston that is received within the barrel for reciprocation therein. The power tool further includes a striker received within the barrel for reciprocation in response to reciprocation of the piston, and an anvil received within the barrel between the striker and the tool bit. The anvil is configured to communicate axial impacts to the tool bit in response to reciprocation of the striker. The anvil defines an opening and an inner bore that communicates with the opening, and the inner bore at least partially receives a shank of the tool bit.

    RECIPROCATING SAW
    23.
    发明申请
    RECIPROCATING SAW 有权

    公开(公告)号：US20210170509A1

    公开(公告)日：2021-06-10

    申请号：US17117878

    申请日：2020-12-10

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Beth E. Cholst ,  Troy C. Thorson ,  Matthew R. Bailey ,  Keith Boulanger

    IPC: B23D51/16 ,  B23D49/16

    Abstract: A reciprocating saw includes a housing, a motor, and a drive assembly. The motor is positioned within the housing and includes a stator assembly with a stator body and a rotor assembly with a motor shaft and a rotor ring that surrounds the stator body. The rotor assembly is rotatable relative to the stator assembly about a motor axis. The drive assembly is positioned within the housing and coupled to the motor. The drive assembly includes a spindle configured to reciprocate along a tool axis that is perpendicular to the motor axis.

    RECIPROCATING SAW
    24.
    发明申请
    RECIPROCATING SAW 审中-公开

    公开(公告)号：US20200222996A1

    公开(公告)日：2020-07-16

    申请号：US16744431

    申请日：2020-01-16

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Beth E. Cholst ,  Troy C. Thorson

    IPC: B23D51/16 ,  B23D49/16

    Abstract: A reciprocating saw including a motor defining a motor axis, the motor including a front end and a back end, the front end including a front face defining a first vertical plane, and the back end including a rear face defining a second vertical plane parallel to the first vertical plane. The reciprocating saw also includes a dual-eccentric scotch yoke mechanism coupled to the motor. The scotch yoke mechanism includes a spindle driven to reciprocate relative to the motor along a spindle axis parallel to the motor axis, the spindle including a rear end nearest to the motor. The scotch yoke mechanism also includes a counterweight driven to reciprocate relative to the motor. The spindle is arranged above the motor. As the spindle reciprocates forward and backward, the rear end extends into a space defined between the first and second vertical planes.

    Lifter mechanism for a powered fastener driver
    29.
    发明授权
    Lifter mechanism for a powered fastener driver 有权

    公开(公告)号：US11618145B2

    公开(公告)日：2023-04-04

    申请号：US17154389

    申请日：2021-01-21

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： David A. Bierdeman ,  Mackenzie J. Nick ,  Beth E. Cholst ,  Troy C. Thorson ,  Nathan Bandy ,  Jacob P. Schneider

    IPC: B25C1/04 ,  B25C1/06

    Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a driven or 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. The drive unit includes an output shaft. The powered fastener driver also includes a rotary lifter engageable with the driver blade. The lifter is configured to receive torque from the drive unit in a first rotational direction for returning the driver blade from the BDC position toward the TDC position. The powered fastener driver further includes a kickout arrangement located between the lifter and the output shaft. The kickout arrangement is configured to permit limited rotation of the lifter relative to the output shaft between a first position and a second position.

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