Portable Or Hand Tool Patents (Class 310/50)
  • Patent number: 12151659
    Abstract: An electric drive for an electrohydraulic brake system, having a housing and a stator-rotor unit received by the housing. The stator-rotor unit has a stator with an arrangement of a plurality of magnetizable, pole-forming stator teeth. The stator teeth are subdivided into separate tooth pairs inserted into the housing. Each of the tooth pairs is wrapped with its own common metal wire forming a part of the coil, the two wire ends of which are electrically contacted with a separate housing insert made of plastic, which is joined to the housing and thereby covers the stator-rotor unit. The individual stator teeth are braced against one another in the housing while lying on one another and are braced against the housing.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: November 26, 2024
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventor: Jan Weimar
  • Patent number: 12138753
    Abstract: An impact tool (1) includes: a motor (6) having a rotor (27) that is rotatable about a rotational axis (AX); a spindle (8) disposed forward of the stator and rotating when the rotor rotates; an anvil (10) having at least a portion disposed forward of the spindle and mounting a bit (300); a hammer (47), which rotatably impacts the anvil; and a housing (2), which has a motor-housing part (21) that houses the motor. The maximum tightening torque is 140 N·m or more. Overall length (La), which is the distance—in the front-rear direction parallel to the rotational axis—between a rear-end portion of the motor-housing part and a front-end portion of the anvil, is 100 mm or less. Center height Hc, which is the distance in the up-down direction between the rotational axis and an upper-end portion of the motor-housing part, is 29 mm or less.
    Type: Grant
    Filed: May 30, 2023
    Date of Patent: November 12, 2024
    Assignee: MAKITA CORPORATION
    Inventors: Kazuma Aoki, Tomoro Aoyama
  • Patent number: 12068639
    Abstract: A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core having a cylindrical body, a permanent magnet ring mounted on an outer surface of the cylindrical body with no intermediate adhesive therebetween, and metal sleeve securely fitted outside the permanent magnet ring. The metal sleeve includes a flange extending radially inwardly that covers an axial end of the permanent magnet ring and is bonded to the rotor core to secure the permanent magnet ring to the rotor core.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: August 20, 2024
    Assignee: Black & Decker Inc.
    Inventors: Changxing Lu, Abraham Sanchez, Tong Zheng, Fulong Liu, Yeli Gu, David J. Smith, Shailesh P. Waikar
  • Patent number: 12059790
    Abstract: A working machine may include: a fan configured to generate an air flow inside a first space; a control unit disposed inside the first space; a partition wall separating the first space from a second space; a first aperture communicating the first space with the second space; and a rib extending from the partition wall and forming an air passage in which the air flow passes, wherein the air passage is positioned between the control unit and the rib. The control unit may include a case housing a circuit board. The control unit may include a first surface facing the rib. In a first direction perpendicular to the first surface, the rib and the first surface may at least partially overlap with each other. A distance between the rib and the first surface may be smaller than a thickness of the case in the first direction.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: August 13, 2024
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Ito, Norihiro Ushio, Akira Ojima, Yoshiaki Kashino
  • Patent number: 12046979
    Abstract: A motor includes a stator, a rotor, and a bearing holder. The rotor is disposed inside the stator. The rotor rotates with respect to the stator. The bearing holder holds a bearing of the rotor. The stator includes a plurality of coils, a plurality of teeth, and a coupling portion. Around the plurality of teeth, the plurality of coils are respectively arranged via an insulator. The coupling portion is located closer to the rotor than the plurality of coils are. The coupling portion couples at least some adjacent ones of the plurality of teeth. The bearing holder is positioned within a plane intersecting at right angles with a rotational axis of the rotor by coming into contact with either respective inner peripheral tips of the plurality of teeth or the coupling portion.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: July 23, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Akito Nakamura
  • Patent number: 12011818
    Abstract: An electric tool is provided which enables preventing adherence to a rotor core of dust, such as iron powder, that has entered a motor. The electric tool includes a cylindrical motor housing 10 accommodating and supporting the motor, and a cooling fan attached to a rotation shaft of the motor, and cools the motor by flowing air generated by the cooling fan toward the back or front of the motor housing 10, wherein a fan guide 50 guiding cooling air is provided in front of an insulator 35 of a stator 30 of the motor. The fan guide 50 includes a first cylindrical part 51 which covers a rotation space of the cooling fan, a guide surface 53, and a second cylinder 55 which extends backward from the guide surface 53, wherein a labyrinth space 39 is formed by the insulator 35 and the second cylinder 55. By providing the labyrinth space 39, it is possible to block the flow of cooling air from the outer peripheral side of the stator 30 to an opening 53a.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 18, 2024
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Ken Miyazawa, Ryo Suzuki
  • Patent number: 11984772
    Abstract: The present disclosure discloses a support device and a working machine arranged with the support device. The support device is configured to support an operating machine and includes: a telescopic member retractable in a length direction; an operating section mounting member connected to a first end of the telescopic member; and a power supply control member connected to a second end of the telescopic member, the first end and the second end being opposite to each other along the length direction; wherein the operating section mounting member is arranged with a plug-in interface; the power supply control member is configured to provide a power supply to the plug-in interface; the power supply control member includes a primary controller for controlling conduction of the power supply and a secondary controller for controlling activation of the operating machine.
    Type: Grant
    Filed: August 14, 2023
    Date of Patent: May 14, 2024
    Assignee: Jinyun Mailin Tools Co., Ltd
    Inventors: Quanyu Hu, Huahua Lu
  • Patent number: 11958158
    Abstract: An electric tool includes a housing; a brushless motor, housed in the housing; an output shaft configured to hold a tip tool; a switching circuit controlling the brushless motor; a circuit board; a case, accommodating the circuit board, the case is filled with a resin, wherein the resin covers at least a part of the circuit board; the housing includes a motor housing element and a cover element covering at least a part of the case. The motor housing element includes a motor housing part accommodating the brushless motor, and a fixing part, configured to fix the case to the motor housing by the fixing part abutting the case.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: April 16, 2024
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Yuuki Takeda, Hironori Sakai
  • Patent number: 11777359
    Abstract: An electric work machine includes a smaller motor. An electric work machine includes a motor and a housing accommodating the motor. The motor includes a stator and a rotor rotatable about a rotation axis. The stator includes a stator core, an insulator fixed to the stator core, a plurality of coils fixed to the insulator, and a terminal connected to each of the plurality of coils. The housing includes at least one first tab in contact with at least a part of a surface of the stator. The at least one first tab is at the same position as at least a part of the terminal in an axial direction parallel to the rotation axis.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: October 3, 2023
    Assignee: MAKITA CORPORATION
    Inventor: Fuminari Fujii
  • Patent number: 11757331
    Abstract: A power tool includes a brushless motor that has a stator including a tubular stator core, a rotor disposed in the tubular stator core, first and second electrically insulating members affixed to opposite ends of the stator core and a plurality of coils. A sensor-circuit board is supported by the first electrically insulating member. The first electrically insulating member is bounded by a first plane perpendicular to the rotational axis and a second plane perpendicular to the rotational axis, and the sensor-circuit board is located between the first plane and the second plane.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: September 12, 2023
    Assignee: MAKITA CORPORATION
    Inventors: Akira Niwa, Kei Kouda
  • Patent number: 11689082
    Abstract: A power tool including an electric motor is provided. The tool includes a substantially disc-shaped printed circuit board (PCB), power switches mounted on the PCB; magnetic sensors mounted on the PCB facing the motor; a heat sink in thermal communication with the power switches disposed between the PCB and the electric motor; and a molded casing structurally securing the heat sink relative to the PCB. The molded casing includes a center opening, at least one first opening provided at a first radial distance from the center opening arranged to receive the magnetic sensors therein, and at least one second opening provided at a second radial distance from the center opening arranged to securely receive the heat sink therein.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: June 27, 2023
    Assignee: Black & Decker Inc.
    Inventors: Madhur M. Purohit, Joshua M. Lewis, Marcell E. Coates, Michael D. Grove, Victor A. Dorado
  • Patent number: 11652429
    Abstract: A microcomputer stores an offset correction value for correcting an offset of a detected current along with a pulse shift for each of a detected current of a maximum phase to which power is supplied for the longest time among three phases and a detected current of a minimum phase to which power is supplied for the shortest time among the three phases, and corrects the detected current of each of the phases with use of the stored offset correction values for the detected current of the maximum phase and the detected current of the minimum phase.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: May 16, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kazuya Watanabe, Yoshitaka Sugiyama
  • Patent number: 11646639
    Abstract: A vibration driver drill as an electric power tool includes a brushless motor that includes a rotor and a sensor circuit board that detects a rotation of the rotor. The rotor includes a tubular rotor core and four permanent magnets held in the rotor core so as to extend in an axial direction of the rotor core. The sensor circuit board is adjacent to a front-end part (first end portion) of the rotor core. The rotor core is provided with a recessed groove on a side surface outward between the mutually adjacent permanent magnets. The recessed groove extends from the front-end part in the axial direction of the rotor core without reaching a rear-end part (second end portion) facing the front-end part.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: May 9, 2023
    Assignee: MAKITA CORPORATION
    Inventor: Kiyoshi Aoyama
  • Patent number: 11621613
    Abstract: The present invention relates to an electric motor and an electric tool equipped with the electric motor. The electric motor includes a rotor, a stator, a coil module wound around the stator, a Hall unit and a wiring circuit unit. The Hall unit includes a Hall circuit board disposed around a rotating shaft of the rotor, and a Hall module for sensing rotation of the rotor. The wiring circuit unit is independent of the Hall circuit board and includes a three-phase power source interface. The wiring circuit unit electrically connects coils of the coil module to the power source interfaces respectively by groups. By separately disposing the Hall unit and the wiring circuit unit independently, a volume of the Hall circuit board can be reduced, and an area blocking an airflow path of a heat dissipation unit can be reduced, so heat dissipation effect of the electric motor and the electric tool can be improved.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: April 4, 2023
    Assignee: TECHWAY INDUSTRIAL CO., LTD.
    Inventors: Fu-Hsiang Chung, Hong Fang Chen, Wei-Ting Chen, Wei-Lin Hsu
  • Patent number: 11489407
    Abstract: Provided is an electrically powered tool having an improved sensor substrate mounting structure, the electrically powered tool being configured so that a brushless type motor is axially contained in a cylindrical housing. The electrically powered tool has: a cylindrical housing for axially containing a motor; a control unit for controlling the motor; and a sensor substrate having mounted thereon a plurality of position detecting elements for detecting the rotational position of a rotor. The sensor substrate is gripped between the insulator of the motor and the housing and held on the housing side when axially mounting the motor. The sensor substrate is annularly shaped and has formed at the center thereof a through-hole through which a bearing for the motor is passed. The portion of the sensor substrate, on which a Hall IC is mounted, is provided with a synthetic resin cover member for protecting the Hall IC against dust.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 1, 2022
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Ryo Suzuki, Ken Miyazawa
  • Patent number: 11462967
    Abstract: An electric work machine, such as a lawn mower includes a motor case (22) fixed inside a main-body housing (10). A brushless motor (21) is housed inside the motor case (22) and includes a stator (23) having a stator core (40), coils (45), and upper and lower insulators (42, 43), and a rotor (24) disposed inward of the stator (23) and having a rotary shaft (25). A spindle (17) is driven by the rotary shaft (25). The motor case (22) holds the stator (23) and axially supports the rotary shaft (25) via bearings (68, 76). One or more insulating members, such as an insulating cap (67) and/or a resin layer (78), provide electrical insulation between the stator core (40) and the rotary shaft (25).
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: October 4, 2022
    Assignee: MAKITA CORPORATION
    Inventors: Kei Kouda, Hideki Abe
  • Patent number: 11444512
    Abstract: An electronic module is provided for a power tool having an electric motor. The module includes a module housing having a radial portion and a cylindrical portion extending from the radial portion away from the electric motor and defining an open end, a printed circuit board (PCB) received within the module housing through the open end thereof, power switches mounted on the PCB, and magnetic sensors mounted on the PCB facing the motor substantially equidistantly from a center of the PCB. The module housing includes openings disposed in the radial portion angularly around a center of the module housing to receive the magnetic sensors therein to allow the magnetic sensors to magnetically interface with the electric motor.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: September 13, 2022
    Assignee: Black & Decker Inc.
    Inventors: Madhur M. Purohit, Joshua M. Lewis, Marcell E. Coates, Michael D. Grove, Victor A. Dorado
  • Patent number: 11437900
    Abstract: An outer-rotor brushless direct-current (BLDC) motor is provided including a stator core having an aperture extending therethrough, a stator mount including an elongated cylindrical member projecting into the aperture of the stator core, an outer rotor, and a rotor mount including an outer rim arranged to couple to the outer rotor and an inner body supporting an outer race of a motor bearing. A piloting pin is provided including a rear portion received within the hollow portion of the elongated cylindrical member of the stator mount and a front portion received within the inner race of the motor bearing.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: September 6, 2022
    Assignee: Black & Decker Inc.
    Inventors: Ross A. Billings, Evan M. Cain, Jarrett A. Dunston, Timothy W. French, Robert S. Gehret, Michael R. Marjomaa, Scott M. Rudolph, Gale A. Heslop
  • Patent number: 11355983
    Abstract: A stator (25; 25A) includes an insulator (28, 29) held on a stator core (27), coils (30) wound around the insulator and on the stator core, fusing terminals (50) held by the insulator and connected to the coils, and a short-circuiting member (32) having first, second and third sheet-metal members (68A-68C) that are respectively connectable to the fusing terminals by virtue of the short-circuiting member being detachably attached to the insulator by screws (75, 76).
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 7, 2022
    Assignee: MAKITA CORPORATION
    Inventor: Akira Naito
  • Patent number: 11283326
    Abstract: The disclosure relates to an actuator module at least consisting of an electrical machine and an application module. The electrical machine consists of a stator and a rotor, the rotor is slidably mounted directly on the stator, and the stator and the rotor are surrounded with plastic at least in the region of the inner bearing face. The plastic coating of the cylindrical rotor outer face has structures which extend as a spiral continuously over the height of the rotor.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 22, 2022
    Assignee: Hanon Systems Bad Homburg GmbH
    Inventor: Daniel Schleicher
  • Patent number: 11251676
    Abstract: A brushless motor includes a stator assembly including a generally-cylindrical stator body having a center bore, teeth extending from the stator body towards the center bore and defining slots in between, and windings wound around the teeth; and a rotor assembly rotatably received within the center bore and includes a rotor shaft and a generally-cylindrical rotor body. The motor further includes at least one rotor bearing mounted on the rotor shaft, and at least one bearing support member supporting the rotor bearing. The bearing support member includes a radial body forming a bearing pocket for receiving the rotor bearing therein, and axial post inserts received within the slots of the stator assembly between adjacent sets of windings and in contact with an inner curved surface of the stator body to support the rotor bearing with respect to the stator assembly along a center axis of the center bore.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 15, 2022
    Assignee: Black & Decker Inc.
    Inventors: Colin M. Crosby, Merritt J. Tennison, Ryan F. Schroeder, Jarrett A. Dunston, David J. Smith, Barak N. Gohn, Andrew M. Palich, Justin H. Ayers
  • Patent number: 11241781
    Abstract: A power tool is provided including a tool housing including a motor housing and a handle portion; a battery receptacle disposed at an end of the handle portion opposite the motor housing, the battery receptacle being configured to receive a battery pack having a maximum voltage of at least 60 V; and a brushless DC (BLDC) motor including an electronically-commutated stator assembly and a rotor assembly magnetically interacting with the rotor assembly to rotate with respect to the stator assembly, the stator assembly comprising a stator lamination stack sized to be received within the motor housing having a circumference of approximately 140 to approximately 190 mm. The motor produces a maximum power output of at least 1600 watts for driving an output shaft at a maximum torque of at least 30 inch-pounds and a maximum speed of at least 8000 rotations-per-minute.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: February 8, 2022
    Assignee: Black & Decker Inc.
    Inventors: Joseph P. Kelleher, William F. Gallagher, Craig A. Oktavec, David J. Smith, Jarrett A. Dunston
  • Patent number: 11245306
    Abstract: A brushless motor includes a stator assembly including a generally-cylindrical stator body having a center bore, teeth extending from the stator body towards the center bore and defining slots in between, and windings wound around the teeth; and a rotor assembly rotatably received within the center bore and includes a rotor shaft and a generally-cylindrical rotor body. The motor further includes at least one rotor bearing mounted on the rotor shaft, and at least one bearing support member supporting the rotor bearing. The bearing support member includes a radial body forming a bearing pocket for receiving the rotor bearing therein, and axial post inserts received within the slots of the stator assembly between adjacent sets of windings and in contact with an inner curved surface of the stator body to support the rotor bearing with respect to the stator assembly along a center axis of the center bore.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 8, 2022
    Assignee: Black & Decker Inc.
    Inventors: Colin M. Crosby, Merritt J. Tennison, Ryan F. Schroeder, Jarrett A. Dunston, David J. Smith, Barak N. Gohn, Andrew M. Palich, Justin H. Ayers
  • Patent number: 11219980
    Abstract: An angle grinder includes a housing, an output shaft, and a motor. The motor includes a stator assembly, a rotor assembly including a motor shaft configured to rotate about a first axis, a commutator, and a carbon brush. The commutator includes a bushing, configured to connect the commutator to the motor shaft, a plurality of commutator segments, sequentially distributed in a circumferential direction around the first axis and arranged around the bushing, and an insulating member, configured to bond the bushing and the plurality of commutator segments so as to constitute a whole.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: January 11, 2022
    Assignee: Nanjing Chevron Industry Co., Ltd.
    Inventors: Cheng Zhang, Chungui Zou, Guoliang Shi, Junmin Fu
  • Patent number: 11179787
    Abstract: A cutting machine reduces cost increase associated with production equipment and has design flexibility for different types of batteries. A cutting machine for cutting a workpiece includes a cutting machine body including a cutting blade, a motor that drives the cutting blade, and a motor housing accommodating the motor, and an adapter including a body holder attached to the cutting machine body and a battery holder in which a battery to power the motor is installable.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 23, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Yuto Yoshida, Goh Yamamura
  • Patent number: 11122936
    Abstract: A hand-crank operated food processor includes a container with a removeable lid. The lid incorporates a number of gears that are operable by the hand crank to cause a drive shaft to spin, imparting a rotational force to a food processing implement such as a blade or a paddle carried on the drive shaft. The crank can be inserted into any one of a plurality of attachment points such that rotation of the crank handle in a selected attachment point will rotate the gears, and therefore the drive shaft, at a different rotational speed as compared to the rotational speed achieved at a different one of the plurality of attachment points at the same input speed from the crank.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: September 21, 2021
    Assignee: Progressive International Corporation
    Inventor: Joseph Kent
  • Patent number: 11117234
    Abstract: A power tool includes a housing, a motor positioned substantially within the housing, a drive mechanism supported by the housing and coupled to the motor, a battery pack electrically coupled to the motor, and an isolation system. The isolation system includes an interface member positioned substantially within the housing. The interface member receives a portion of the battery pack to electrically couple the battery pack to the motor. The isolation system also includes a plurality of isolators coupled between the housing and the interface member to isolate the battery pack from the housing during operation of the power tool.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: September 14, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Troy C. Thorson, Jeffrey M. Wackwitz, Andrew J. Weber
  • Patent number: 11052531
    Abstract: A device for accommodating at least one battery on a power tool, in particular a circular saw, including a receiving plate for detachably holding the at least one battery, including at least one contact device for connecting the battery to the power tool, and a double hinge device having a first and a second rotation axis, the first rotation axis being positioned on a housing of the power tool, and the second rotation axis being positioned on the receiving plate, so that the receiving plate is reversibly pivotable around the first and the second rotation axis relative to the housing between a first and a second position.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: July 6, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Konstantin Baxivanelis, Tobias Koeniger
  • Patent number: 11052530
    Abstract: Provided is an electric work machine that can suppress a temperature increase of a component controlling an electric motor. The electric work machine including a brushless motor that operates a tip tool includes a rectification circuit that converts a voltage to be applied to the brushless motor from an alternating current voltage to a direct current voltage, and a switching circuit that controls the brushless motor, and the rectification circuit is arranged upstream of the switching circuit in a circulation path of the air that cools the rectification circuit and the switching circuit.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 6, 2021
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Akira Matsushita, Tomomasa Nishikawa, Yuta Noguchi, Kuniaki Kanbe, Shingo Yamazaki
  • Patent number: 11045938
    Abstract: Several means 71, 72, 73, 74, and 75 are provided for restricting a relative displacement in a separating direction of half-split housings 50L, 50R. At one or more of several screw-connection parts 60 of the left and right half-split housings 50L, 50R, a press-fitting protrusion 71a is provided in an insertion hole 62a of a boss-receiving part 62 into which a screw-boss part 61 is inserted. By press-fitting the screw-boss part 61 to the boss-receiving part 62, a separation resistance may be introduced between the left and right half-split housings 50L, 50R.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 29, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Junichi Iwakami, Shin Nakamura, Akira Mizutani, Takafumi Kotsuji
  • Patent number: 11027406
    Abstract: The hand machine tool according to the invention has an integrated tool or a tool holder 2 to receive a tool 4. An electric motor 5 serves to drive the tool 4 or the tool holder 2. A battery pack 18 for supplying power to the electric motor 5 can be pushed into a guide 23 in a first direction. A plurality of electrical contacts 31 for contacting counter contacts 32 of the battery pack 18 are disposed in a contact holder 36. Wires 40, which are connected in each case to one of the electrical contacts 31, have cores which extend in a wave-like manner in the first direction 28 adjacent to the electrical counter contact 32.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: June 8, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Helmut Burger, Thomas Thanner, Rene Richter
  • Patent number: 11007632
    Abstract: A power tool includes a motor, a switch, a housing, a switching member and a holding member. The housing is a hollow body formed by a first housing part and a second housing part connected with the first housing part. The first housing part has a through hole. The switching member is connected to the switch and includes an operation part exposed outside through the through hole so as to be movable in a specified direction in response to a user's manual operation. The switching member is configured to turn the switch on and off by linearly moving in the specified direction. The holding member is supported by at least one of the first housing part and the second housing part within the housing and configured to hold the switching member between the holding member and the first housing part so as to be linearly movable in the specified direction.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: May 18, 2021
    Assignee: MAKITA CORPORATION
    Inventor: Yonosuke Aoki
  • Patent number: 10960509
    Abstract: An illustrative embodiment of the present disclosure provides hand-held power tool which includes a housing, a motor, and an output spindle. The housing supports a motor having a rotor configured to rotate when the motor is supplied with power. The output spindle protrudes from an output end of the housing, and is functionally coupled to the rotor such that the output spindle rotates in response to a rotation of the rotor. The housing also supports at least one electrical accessory that is connectable to an external power connector located on the housing.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 30, 2021
    Assignee: Ingersoll-Rand Industrial U.S., Inc.
    Inventors: Sean C. Ely, Jason Christopher Bartoszek, Thomas S. Dougherty, Kevin Heinrichs, Douglas Fornell Leavitt, Dennis Naksen, Warren A. Seith, Joshua Odell Johnson, Pinhua Xie, Timothy Richard Cooper
  • Patent number: 10931167
    Abstract: A power tool including a housing, a controller within the housing, and a brushless motor within the housing and controlled by the controller. The brushless motor includes a stator assembly, a rotor core, and a rotor enclosure. The stator assembly includes a stator core having stator laminations defining a stack length in an axial direction. The rotor enclosure includes a front end cap provided on a first side of the rotor core having a front bearing holder; and a rear end cap provided on a second side of the rotor core. The brushless motor further includes a fan, a front bearing, and a rear bearing. The front bearing holder and the fan define a bearing-to-fan length in the axial direction between axial ends of the front bearing holder and the fan, wherein a difference between the bearing-to-fan length and the stack length is less than 23.5 millimeters.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: February 23, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Andrew T. Beyerl, Keith Boulanger, Alex Huber, William A. Elger, Jeffrey M. Wackwitz
  • Patent number: 10848034
    Abstract: An electronic module is provided for a power tool having an electric motor. The electronic module includes a printed circuit board (PCB) being substantially disc-shaped; power switches mounted on the PCB forming an inverter bridge circuit for driving the electric motor; a controller mounted on the PCB and configured to control a switching operation of the power switches; positional sensors mounted on the PCB substantially equidistantly from a center of the PCB within the control portion and in communication with the controller to provide positional signals related to a rotational position of the electric motor to the controller; and a module housing arranged to receive the PCB therein. The module housing includes a planar portion in parallel to the PCB and openings disposed in the planar portion angularly around a center of the module housing to receive the positional sensors therein.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 24, 2020
    Assignee: Black & Decker Inc.
    Inventors: Madhur M. Purohit, Joshua M. Lewis, Marcell E. Coates, Michael D. Grove, Victor A. Dorado
  • Patent number: 10836019
    Abstract: In order to provide an impact work machine capable of preventing oil leakage and cooling a power transmission apparatus, an impact work machine transmitting power of an electric motor 16 including an output shaft extending in an axis A1 direction to an anvil includes: a housing including a motor case accommodating the electric motor, and a grip extending from the motor case; a speed reducer and an impact mechanism 96 each transmitting power of the electric motor to the anvil; a hammer case located forward of the motor case and nonrotatable relative to the motor case; an extension portion provided on the housing and extending from the motor case toward the hammer case so as to cover at least part of the hammer case; and a passage provided between the hammer case and the extension portion and through which air passes.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: November 17, 2020
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Akira Matsushita, Takuhiro Murakami, Tomomasa Nishikawa, Junichi Toukairin, Shota Takeuchi
  • Patent number: 10821821
    Abstract: A vehicle transaxle includes a housing, an electric machine stator, a plurality of mounting plates, and a first set of fasteners. The housing has internal walls that define a cavity and an access opening to the cavity. The electric machine stator is disposed within the cavity between a first of the internal walls and the opening. The plurality of mounting plates secures a first longitudinal end of the stator to the housing proximate the opening. Each fastener of the first set of fasteners extends through one of the mounting plates, through the stator, and engages the first of the internal walls to secure a second longitudinal end of the stator to the first of the internal walls.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: November 3, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Siraj Siddiqui, Cyrille Goldstein, Michael Coury, William David Guarino
  • Patent number: 10797560
    Abstract: A vehicle transmission includes a housing, an electric machine, a bracket, and a plurality of fasteners. The housing has internal rear and internal side walls that define a cavity. The electric machine stator and the bracket are disposed within the cavity. The bracket has a metallic inner ring and an elastomer outer ring. The elastomer outer ring engages the internal side wall. The electric machine stator is disposed between the bracket and the internal rear wall. The plurality of fasteners extends through the metallic inner ring, through the stator, and engages the rear internal wall to secure the stator to the housing.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 6, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Siraj Siddiqui, Cyrille Goldstein, William David Guarino, Michael Coury
  • Patent number: 10792138
    Abstract: Provided is a cleaning device for personal cleaning and care, comprising a cleaning device housing detachably connected to a handle housing, a bracket for supporting the cleaning device, a cleaning element carrier and cleaning elements distributed on the cleaning element carrier, a passive assembly, and a cleaning device transducer.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 6, 2020
    Assignee: Shanghai Shift Electrics Co., Ltd.
    Inventors: Xiaoguo Dai, Zhenwu Xu, Ling Dai
  • Patent number: 10742093
    Abstract: A temperature sensor 1 according to the present invention includes a first coil element 11 and a second coil element 12 both serving as a part of a coil of an electric apparatus, an element main body 53 that includes a thermosensitive body 54 detecting temperature of the first coil element 11 and temperature of the second coil element 12 and a pair of extraction wires 56 and 56 connected to the thermosensitive body 54, and a housing 25 that includes an electric insulating resin material and is configured to house and hold the first coil element 11, the second coil element 12, and the element main body 53.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: August 11, 2020
    Assignee: SHIBAURA ELECTRONICS CO., LTD.
    Inventors: Takamasa Yoshihara, Michiru Takemura, Masanori Kirihara
  • Patent number: 10717182
    Abstract: An angle grinder includes a housing formed with a handle, a clamping device for mounting a grinding disk, an output shaft for driving the clamping device to rotate, a brushless motor being provided with a motor shaft, a transmission mechanism for transmitting power between the motor shaft and the output shaft, and a circuit board assembly for providing electricity to the brushless motor. The clamping device is disposed outside of the housing and connected with the output shaft. The output shaft is at least partially disposed inside of the housing and connected with the transmission mechanism. The brushless motor is arranged between the transmission mechanism and the circuit board assembly in a direction substantially parallel to the motor shaft, and the motor shaft is disposed along a direction substantially perpendicular to the output shaft.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 21, 2020
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Liang Chen, Wei Wei, Hongwei Wang
  • Patent number: 10682753
    Abstract: An electric power tool from starting unintentionally by the user, stopping a locked-on state in an unintentional situation by the user, as well as enhances the theft suppressing effect of the electric power tool. The present invention relates to a starting system including an electric power tool and a glove as a wearable device a user puts on. Only when a use permission signal is received from the glove the user puts on, the operational state of the electric power tool changes to a start standby state whereby electrical functions of the tool can then be utilized, and only in the start standby state, the electric power tool is configured to start by an on-operation thereof.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 16, 2020
    Assignee: MAKITA CORPORATION
    Inventor: Fumitoshi Numata
  • Patent number: 10666117
    Abstract: An interference suppression system, a drive having such a suppression system, and a handheld power tool having such a drive, the interference suppression system including a core, the core having exactly one first through-opening, one second through-opening, and one third through-opening, a first segment of a first connecting line of the drive being situated in the first through-opening, a second segment of a second connecting line of the drive being situated in the second through-opening, and a third segment of a third connecting line of the drive being situated in the third through-opening.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 26, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Joachim Heizmann
  • Patent number: 10562107
    Abstract: A power tool includes: a motor; a fan driven by the motor and defining an axis and a radial direction; and a housing for accommodating the motor and the fan therein, the housing including: a peripheral wall formed with a ventilation hole; and a grid partly covering the ventilation hole, the ventilation hole being positioned adjacent to the fan and having a shape defined by a circumferential surface, the grid including at least one elongated portion extending in a longitudinal direction perpendicular to the radial direction, and a distance from the axis of the fan to the circumferential surface is different from a distance from the axis of the fan to one elongated portion in the radial direction of the fan.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: February 18, 2020
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Tetsuhiro Harada, Tomomasa Nishikawa, Yoshihiro Nakano, Hiroki Uchida
  • Patent number: 10501954
    Abstract: A sonic pool brush including a head assembly with a base having a plurality of electric motors/circuits mounted on an upper surface and a plurality of brush segments positioned in a row along the lower surface of the base. The brush segments connected one each to the electric motors/circuits, for oscillating motion of each individual brush segment when the plurality of electric motors/circuits are energized, each individual brush segment oscillating at a rate in the sonic range. A housing constructed to fit over the motors and engage the base in a waterproof arrangement and a source of electric power attachable to the plurality of electric motors/circuits for energizing the plurality of electric motors/circuits.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: December 10, 2019
    Inventor: Michael Andrew Collier
  • Patent number: 10486291
    Abstract: A power tool having a light source is provided. The power tool includes a light emitting diode and a thermally conductive housing that houses a movable component of the power tool, the thermally conductive housing including an integral portion that extends from the thermally conductive housing and is configured for thermally coupling with the light emitting diode. The integral portion of the thermally conductive housing is a heat sink for the heat generated by the light emitting diode, when the light emitting diode is thermally coupled to the integral portion of the thermally conductive housing.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: November 26, 2019
    Assignee: Ingersoll-Rand Company
    Inventor: Jason Christopher Bartoszek
  • Patent number: 10461603
    Abstract: The present invention relates to a fan motor support for HVAC systems of motor vehicles, comprising a two-part housing (15) having a second part (20) and a first part (20?), a flexible joint (30) connecting the first and second parts (20?, 20), a plurality of internal ribs (40) arranged inside the first and second parts (20?, 20) of the two-part housing (15), locking the motor radially, and at least one pair of projections (50) arranged inside the first and second parts (20?, 20) of the two-part housing (15), locking the motor axially.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 29, 2019
    Assignee: Valeo Systemes Thermiques
    Inventors: Renato Santomo, Arnaldo Vicentine, Daniel Antoniazzi
  • Patent number: 10454391
    Abstract: A hand-held power tool includes a housing with a handle, a transmission, a drive motor, a tool receiver, and a first switch unit. The transmission and drive motor are arranged in the housing, the transmission being configured to transmit a torque generated by the drive motor to the tool receiver, which is configured to rotate about a rotation axis. The first switch unit is configured to control the drive motor, and has a first switching element and a second switching element that are configured to operate the first switch unit and that enable an operator to influence various control variables of the drive motor. The second switching element is further configured to control a direction of the rotation of the drive motor, and upon actuation, execute a linear movement that is substantially parallel to the rotation axis.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 22, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Florian Bantle
  • Patent number: 10357301
    Abstract: A surgical instrument for applying a rotational force to a structural element during a surgical procedure. The instrument may be designed for increasing an input force to produce an enlarged output force adequate for fracturing an excess section of the elongated element from a remainder of the structural element. The instrument may include an input mechanism that receives an external rotational input force, a planetary gear system that multiples the input force, and an output mechanism that attaches to and delivers the multiplied rotational output force to the excess section of the structural element. The output mechanism may also be configured to capture the separated excess section. The instrument may include a housing and a handle for grasping and manipulating during the surgical procedure.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: July 23, 2019
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Bradley E. Steele, Thomas V. McGahan, Jacob R. Zimmerman
  • Patent number: 10348158
    Abstract: A power tool (1) includes a brushless motor (8) having a stator (9) and a rotor (10). The stator (9) includes: a tubular stator core (60); front and rear insulators (61, 62) fixed to the stator core; and coils (64), which are wound around a plurality of teeth (63) on the stator core. The rotor (10) includes: a rotor core (67) disposed within the stator; a rotary shaft (11) fixed to the rotor core; and one or more permanent magnets (68) fixed to the rotor core. A sensor-circuit board (65) detects the position(s) of the permanent magnet(s) and is fixed to the stator. One or more notched parts (91) is/are formed, in an outer circumference of the sensor-circuit board, between circumferentially-adjacent teeth in an axial direction of the stator. The notch part(s) allow(s) air for cooling the brushless motor to pass more easily through the interior of the stator.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 9, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Akira Niwa, Kei Kouda