公开(公告)号：US20230356310A1

公开(公告)日：2023-11-09

申请号：US18139629

申请日：2023-04-26

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： John M. Jubeck ,  Andrew J. Weber ,  Jacob A. Edwards ,  Ryan D. Moorleghen ,  Matthew Leidel ,  Wu Fan

IPC: B23D51/16 ,  B23D49/16

CPC classification number: B23D51/16 ,  B23D49/16 ,  B23D59/006

Abstract: A jigsaw including a housing, a handle extending transverse from the housing in a direction of a handle axis, a battery selectively coupled to the handle, a foot plate coupled to the housing and configured to contact a workpiece, and a drive assembly powered by the battery. The drive assembly includes a motor, a fan, a transmission driven by the motor, and an output spindle driven by the transmission and coupled to a cutting blade. The jigsaw also includes a frame supported within the housing which supports the motor and the transmission. The frame includes a shroud surrounding at least a portion of the fan and an air chute in fluid communication with the shroud that together direct an airflow produced by the fan toward a cutting area adjacent the cutting blade. The jigsaw also includes a baffle that is selectively moveable into the air chute to redirect the airflow away from the cutting blade.

公开(公告)号：US20220226977A1

公开(公告)日：2022-07-21

申请号：US17579774

申请日：2022-01-20

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Coby A. Nettleton ,  Leonard F. Mikat-Stevens ,  Alex D. Servais ,  Eric R. Albrecht ,  Jacob N. Zimmerman ,  John M. Jubeck ,  Andrew R. Palm ,  Casey L. Bonath ,  Daniel J. Sheridan

IPC: B25C5/15 ,  B25C1/00 ,  B25C1/04 ,  B25C1/06 ,  B25C1/12 ,  B25C1/18 ,  B25C5/13

Abstract: A fastener driver includes a housing defining a head portion and a handle portion, a drive mechanism positioned within the housing, and a firing mechanism. The firing mechanism includes a primary guide member supported within the head portion of the housing, a secondary guide member spaced from the primary guide member and supported within the head portion of the housing, a piston slidable along the primary guide member and the secondary guide member, a driver blade attached to the piston and configured to be movable along a drive axis, and a biasing member configured to move the piston and the driver blade from a top dead center (TDC) position toward a bottom dead center (BDC) position. A lifter assembly is operated by the drive mechanism to return the piston and the driver blade towards the TDC position, against the bias of the biasing member.

公开(公告)号：US11878400B2

公开(公告)日：2024-01-23

申请号：US17579774

申请日：2022-01-20

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Coby A. Nettleton ,  Leonard F. Mikat-Stevens ,  Alex D. Servais ,  Eric R. Albrecht ,  Jacob N. Zimmerman ,  John M. Jubeck ,  Andrew R. Palm ,  Casey L. Bonath ,  Daniel J. Sheridan

IPC: B25C5/15 ,  B25C1/04 ,  B25C1/06 ,  B25C1/00 ,  B25C5/13 ,  B25C1/12 ,  B25C1/18

CPC classification number: B25C5/15 ,  B25C1/001 ,  B25C1/047 ,  B25C1/06 ,  B25C1/123 ,  B25C1/188 ,  B25C5/13

Abstract: A fastener driver includes a housing defining a head portion and a handle portion, a drive mechanism positioned within the housing, and a firing mechanism. The firing mechanism includes a primary guide member supported within the head portion of the housing, a secondary guide member spaced from the primary guide member and supported within the head portion of the housing, a piston slidable along the primary guide member and the secondary guide member, a driver blade attached to the piston and configured to be movable along a drive axis, and a biasing member configured to move the piston and the driver blade from a top dead center (TDC) position toward a bottom dead center (BDC) position. A lifter assembly is operated by the drive mechanism to return the piston and the driver blade towards the TDC position, against the bias of the biasing member.

公开(公告)号：US20250010388A1

公开(公告)日：2025-01-09

申请号：US18760178

申请日：2024-07-01

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： John M. Jubeck

IPC: B23D49/16

Abstract: A jigsaw including a housing, a handle extending transverse from the housing in a direction along a handle axis, a battery selectively coupled to the handle, a foot plate configured to contact a workpiece during a cutting operation, a drive assembly powered by the battery and including a motor, a transmission driven by the motor, an output spindle driven by the transmission and coupled to a saw blade. The jigsaw further includes a scotch yoke mechanism to convert a rotational motion of the transmission to a reciprocating motion of the output spindle and the saw blade generally along a vertical axis that is perpendicular to the handle axis, wherein the scotch yoke mechanism includes a bushing eccentrically mounted to a driven gear of the transmission. The bushing includes a spherical bearing surface received within a laterally extending slot of the output spindle for sliding movement therewith.