公开(公告)号：US11298763B2

公开(公告)日：2022-04-12

申请号：US16159230

申请日：2018-10-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Taylor Crabb ,  Josh Adams ,  Brian Wattenbach ,  Scott R. Fischer

IPC: B23D59/00 ,  B23D45/04 ,  B23D47/02 ,  B27B5/29

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and an upper blade guard covering an upper portion of the saw blade. The miter saw also includes a cut line indicator coupled to the upper blade guard. The cut line indicator includes a light source, a cover positioned between the saw blade and the light source, a housing in which the light source is positioned, a rib coupled to one of the cover or the housing, and a first slot defined in the other of the cover or the housing. The cover includes a second slot through which light from the light source passes to illuminate opposite sides of the saw blade and a work piece supported upon the base assembly, thereby casting a shadow of the saw blade onto the work piece. The rib is receivable within the first slot to align the second slot with the saw blade.

公开(公告)号：US10464148B2

公开(公告)日：2019-11-05

申请号：US15410359

申请日：2017-01-19

Applicant: Milwaukee Electric Tool Corporation

Inventor： Brian Wattenbach ,  Jeffrey Holly ,  Benjamin Ludy ,  Roger D. Neitzell ,  Thomas R. Bednar

IPC: B23D49/10 ,  B23D51/16 ,  F16J15/3232 ,  B23D49/16

Abstract: A reciprocating saw includes a housing assembly, a motor, and a drive mechanism. The drive mechanism includes a gear coupled to and driven by a pinion of the motor for rotation about a first axis. The gear is vertically-oriented within the housing assembly and has an outer periphery. The drive mechanism also includes a spindle reciprocatable relative to the housing assembly, a connecting rod having a first end coupled to the gear and a second end coupled to the spindle to transmit rotation of the gear into reciprocation of the spindle, and a counterweight rotatably coupled to the housing assembly for rotation about the first axis within the outer periphery of the gear. The counterweight is also coupled to the first end of the connecting rod such that the counterweight is moved in a substantially opposite direction than the spindle to counterbalance reciprocation of the spindle.

公开(公告)号：US11192195B2

公开(公告)日：2021-12-07

申请号：US16159217

申请日：2018-10-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Taylor Crabb ,  Josh Adams ,  Brian Wattenbach ,  Scott R. Fischer

IPC: B23D45/04 ,  B23D47/02 ,  B23D59/00 ,  B27B5/29

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and a lower blade guard covering a lower portion of the saw blade. The miter saw also includes a linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly. The linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade.

公开(公告)号：US20190091779A1

公开(公告)日：2019-03-28

申请号：US16159217

申请日：2018-10-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Taylor Crabb ,  Josh Adams ,  Brian Wattenbach ,  Scott Fischer

IPC: B23D45/04 ,  B23D59/00 ,  B23D47/02

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and a lower blade guard covering a lower portion of the saw blade. The miter saw also includes a linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly. The linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade.

公开(公告)号：US20160243631A1

公开(公告)日：2016-08-25

申请号：US15053733

申请日：2016-02-25

Applicant: Milwaukee Electric Tool Corporation

Inventor： Mike Brewster ,  Taylor Crabb ,  Josh Adams ,  Steven Cunningham ,  David Rose ,  Daryl S. Richards ,  Jeffrey S. Holly ,  Brian Wattenbach ,  Scott R. Fischer

IPC: B23D45/04 ,  B23D59/00 ,  B23D47/02

CPC classification number: B23D45/048 ,  B23D47/02 ,  B23D47/025 ,  B23D59/003 ,  B27B5/29 ,  B27G19/02

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw arm, a brushless motor supported by the saw arm, and power electronics positioned outside the motor for supplying power to the motor. The power electronics are coupled to a structural component of the miter saw to utilize the entire mass of the structural component as a heat sink to dissipate heat generated by the power electronics.

Abstract translation: 斜切锯包括基座组件和可枢转地联接到基座组件的锯单元。 锯单元包括锯臂，由锯臂支撑的无刷电动机和位于马达外部的电力电子器件，用于向马达供电。 功率电子器件耦合到斜切锯的结构部件，以利用结构部件的整个质量作为散热器来散发由电力电子器件产生的热量。

公开(公告)号：US12257639B2

公开(公告)日：2025-03-25

申请号：US17512895

申请日：2021-10-28

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Taylor Crabb ,  Josh Adams ,  Brian Wattenbach ,  Scott R. Fischer

IPC: B23D59/00 ,  B23D45/04 ,  B23D47/02 ,  B27B5/29 ,  B27G19/02

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and a lower blade guard covering a lower portion of the saw blade. The miter saw also includes a linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly. The linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade.

公开(公告)号：US20170129026A1

公开(公告)日：2017-05-11

申请号：US15410359

申请日：2017-01-19

Applicant: Milwaukee Electric Tool Corporation

Inventor： Brian Wattenbach ,  Jeffrey Holly ,  Benjamin Ludy ,  Roger D. Neitzell ,  Thomas R. Bednar

IPC: B23D51/16 ,  F16J15/3232 ,  B23D49/16

Abstract: A reciprocating saw includes a housing assembly, a motor, and a drive mechanism. The drive mechanism includes a gear coupled to and driven by a pinion of the motor for rotation about a first axis. The gear is vertically-oriented within the housing assembly and has an outer periphery. The drive mechanism also includes a spindle reciprocatable relative to the housing assembly, a connecting rod having a first end coupled to the gear and a second end coupled to the spindle to transmit rotation of the gear into reciprocation of the spindle, and a counterweight rotatably coupled to the housing assembly for rotation about the first axis within the outer periphery of the gear. The counterweight is also coupled to the first end of the connecting rod such that the counterweight is moved in a substantially opposite direction than the spindle to counterbalance reciprocation of the spindle.

公开(公告)号：US11919097B2

公开(公告)日：2024-03-05

申请号：US16589672

申请日：2019-10-01

Applicant: Milwaukee Electric Tool Corporation

Inventor： Brian Wattenbach ,  Jeffrey Holly ,  Benjamin Ludy ,  Roger D. Neitzell ,  Thomas R. Bednar

IPC: B23D51/16 ,  B23D49/10 ,  B23D49/16 ,  F16J15/3232

CPC classification number: B23D51/16 ,  B23D49/10 ,  B23D49/165 ,  F16J15/3232

Abstract: A reciprocating saw includes a housing assembly and a motor positioned within the housing assembly. The motor includes a pinion. A drive mechanism is positioned within the housing assembly and includes a gear driven by the pinion, a hub coupled to the gear, a spindle, and a connecting rod. A clutch assembly is coupled to the drive mechanism to selectively transmit drive force form the gear to the hub. The clutch assembly includes a first disk coupled to the gear, a second disk coupled to the hub, a biasing member, and a threaded fastener. The biasing member is positioned between the hub and the gear to bias the first and second disks into frictional engagement. The threaded fastener extends through the gear and threadably engages the hub to couple the hub to the gear. Tightening the threaded fastener pulls the hub toward the gear to preload the biasing member.

公开(公告)号：US20200030897A1

公开(公告)日：2020-01-30

申请号：US16589672

申请日：2019-10-01

Applicant: Milwaukee Electric Tool Corporation

Inventor： Brian Wattenbach ,  Jeffrey Holly ,  Benjamin Ludy ,  Roger D. Neitzell ,  Thomas R. Bednar

IPC: B23D51/16 ,  F16J15/3232 ,  B23D49/10 ,  B23D49/16

Abstract: A reciprocating saw includes a housing assembly and a motor positioned within the housing assembly. The motor includes a pinion. A drive mechanism is positioned within the housing assembly and includes a gear driven by the pinion, a hub coupled to the gear, a spindle, and a connecting rod. A clutch assembly is coupled to the drive mechanism to selectively transmit drive force form the gear to the hub. The clutch assembly includes a first disk coupled to the gear, a second disk coupled to the hub, a biasing member, and a threaded fastener. The biasing member is positioned between the hub and the gear to bias the first and second disks into frictional engagement. The threaded fastener extends through the gear and threadably engages the hub to couple the hub to the gear. Tightening the threaded fastener pulls the hub toward the gear to preload the biasing member.

公开(公告)号：US20190076940A1

公开(公告)日：2019-03-14

申请号：US16159230

申请日：2018-10-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Taylor Crabb ,  Josh Adams ,  Brian Wattenbach ,  Scott Fischer

IPC: B23D45/04 ,  B23D59/00 ,  B23D47/02

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and an upper blade guard covering an upper portion of the saw blade. The miter saw also includes a cut line indicator coupled to the upper blade guard. The cut line indicator includes a light source, a cover positioned between the saw blade and the light source, a housing in which the light source is positioned, a rib coupled to one of the cover or the housing, and a first slot defined in the other of the cover or the housing. The cover includes a second slot through which light from the light source passes to illuminate opposite sides of the saw blade and a work piece supported upon the base assembly, thereby casting a shadow of the saw blade onto the work piece. The rib is receivable within the first slot to align the second slot with the saw blade.