Patents Assigned to Makita Corporation
  • Publication number: 20220314419
    Abstract: A work tool switches smoothly between operational modes and has a lever member that is easily joined. The work tool includes an operation member, a lever member, and a switching member. The lever member is swingable about a support shaft in response to an operation on the operation member and is swingable with the support shaft placed through the lever member. The lever member has an elongated hole through which the support shaft is placed. The elongated hole extends along the lever member. The switching member is linked with a swing of the lever member to move linearly.
    Type: Application
    Filed: March 16, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Takeshi Kamiya
  • Publication number: 20220314418
    Abstract: A power tool includes a reducer that has a small size in an axial direction and is highly durable, although including a transmission mechanism. The power tool includes a motor, a reducer that reduces rotation from the motor, and an actuator to be actuated by the rotation reduced by the reducer. The reducer includes at least two stages of internal gears aligned in an axial direction, a preceding planetary gear and a succeeding planetary gear adjacent to each other in the axial direction to revolve within the internal gears, and at least two stages of carriers aligned in the axial direction. A carrier of the carriers supports the preceding planetary gear and the succeeding planetary gear radially overlapping each other with a single pin.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Takeshi KAMIYA
  • Publication number: 20220314414
    Abstract: Two balls can reliably retract for smooth insertion of a tip tool into a tool holder. A hammer drill includes a tool holder, two balls in reception holes in the tool holder, a guide washer urging the balls forward in the reception holes with a coil spring, a pressure ring adjacent to a front of the guide washer, and an operation sleeve allowing the pressure ring to move backward and forward between locked and unlocked positions of the two balls. The guide washer includes, on its front surface, a projection toward the pressure ring to cause, with the pressure ring at the locked position, the guide washer to be inclined with respect to an axis of the tool holder for a first ball to move more backward than a second ball.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Kiyonobu YOSHIKANE, Mizuki YAMAMOTO
  • Publication number: 20220314411
    Abstract: A reducer appropriately selects from three or more variable speeds to match multiple operational modes. An impact driver includes a motor, a reducer that reduces rotation from the motor to select from three or more variable speeds, a plurality of actuators to be actuated by the rotation reduced by the reducer, and a switcher that selects, from the plurality of actuators, a specific actuator to be actuated in a predetermined operational mode. The switcher causes the reducer to cooperate with the selected specific actuator and actuates the reducer at a predetermined variable speed of the three of more variable speeds corresponding to the predetermined operational mode of the selected specific actuator.
    Type: Application
    Filed: March 16, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Takeshi KAMIYA
  • Publication number: 20220314413
    Abstract: An impact tool includes a motor, a driving mechanism, a tool body, an elastically-connected part elastically connected to the tool body to be movable at least in a front-rear direction relative to the tool body, a detecting mechanism configured to detect pressing of a tool accessory against a workpiece, and a control part configured to control driving of the motor based on a detection result of the detecting mechanism. The detecting mechanism includes a movable member that is provided in one of the tool body and the elastically-connected part and configured to be moved by relative movement of the other of the tool body and the elastically-connected part in the front-rear direction, and a detector that is provided in the one of the tool body and the elastically-connected part and configured to detect rearward pressing of the tool accessory by detecting movement of the movable member.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Masanori FURUSAWA, Kanako HIRONO, Kei WATANABE
  • Publication number: 20220313043
    Abstract: A cleaning machine may include: a drive shaft; a rotation transmitting mechanism configured to transmit rotation of the drive shaft; a brush attaching member configured to rotate about a rotation axis; a clutch mechanism coupling the rotation transmitting mechanism with the brush attaching member; a brush attached to the brush attaching member; and a brush moving mechanism configured to move the brush attaching member between an adjacent position adjacent to a working plane and a distant position distanced from the working plane. The clutch mechanism may be configured to transmit the rotation from the rotation transmitting mechanism to the brush attaching member when the brush attaching member is at the adjacent position and cut off transmission of the rotation from the rotation transmitting mechanism to the brush attaching member when the brush attaching member is at the distant position.
    Type: Application
    Filed: March 10, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Kenta MORIMOTO, Takuo ARAKAWA
  • Publication number: 20220313042
    Abstract: A cleaning machine may include: a first brush including a first brush shaft and a first brush body held by the first brush shaft; a second brush including a second brush shaft and a second brush body held on the second brush shaft; a first brush attaching member having a first shape, wherein one end of the first brush shaft is detachably attached to the first brush attaching member; and a second brush attaching member having a second shape, wherein one end of the second brush shaft is detachably attached to the second brush attaching member. The one end of the first brush shaft may have a first corresponding shape that corresponds to the first shape. The one end of the second brush shaft may have a second corresponding shape that corresponds to the second shape. Other end of the first brush shaft may have the second corresponding shape.
    Type: Application
    Filed: March 10, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Takuo ARAKAWA, Kenta MORIMOTO
  • Publication number: 20220314417
    Abstract: A power tool with a small size in an axial direction includes a reducer allowing smooth and stable switching between variable speeds. The power tool includes a motor, a reducer that reduces rotation from the motor, and an actuator actuated by the rotation reduced by the reducer. The reducer includes a preceding internal gear in a preceding stage, a succeeding internal gear in a succeeding stage, an engagement member radially outward from the internal gears and switchable between a first position to restrict rotation of the preceding internal gear and a second position to restrict rotation of the succeeding internal gear, planetary gears that revolve within the internal gears, carriers supporting the planetary gears, and an operation unit to switch the engagement member selectively to the first position or the second position.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Takeshi KAMIYA
  • Publication number: 20220312681
    Abstract: A gardening trimmer may include: a first blade; a facing member overlapping with the first blade in a second direction perpendicular to a first direction; and a suppressing structure. Grease may be applied to at least a part of a conversion mechanism. The first blade may include: a plurality of first slots; and a plurality of pairs of first connecting portions, wherein each pair of the first connecting portions is disposed at opposite ends of corresponding one of the first slots in a third direction perpendicular to the first and second directions. The suppressing structure may be configured to suppress the grease from moving toward a front end of the first blade in the first direction. The suppressing structure may be disposed on the facing member at a position facing at least one pair of in the second direction when the first blade reciprocates relative to the facing member.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Tomoyuki KUTSUNA, Mikihiro KITAHARA
  • Patent number: 11458610
    Abstract: Rotation of a spindle relative to a first cam is reduced. A power tool includes a spindle to receive a tip tool and rotatable about a rotation axis, and a vibration mechanism that vibrates the spindle in an axial direction. The spindle has an outer surface including, in a cross section orthogonal to the rotation axis, a first portion at a first distance from the rotation axis, and a second portion at a second distance from the rotation axis. The vibration mechanism includes a first cam surrounding the spindle, and a second cam located behind and in contact with the first cam.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: October 4, 2022
    Assignee: MAKITA CORPORATION
    Inventor: Takeshi Kamiya
  • Patent number: 11463027
    Abstract: An electric working machine in one aspect of the present disclosure includes a motor and a controller. The motor is configured to be electrically coupled to a battery pack and to be driven with electric power from the battery pack. The controller is configured to acquire an internal resistance information of the battery pack and to change control of the motor based on the internal resistance information acquired.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 4, 2022
    Assignee: MAKITA CORPORATION
    Inventor: Yoshitaka Ichikawa
  • 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: 11459763
    Abstract: A blower reduces debris blown toward an operator when air is jetted from a distal end of a blower pipe. A blower includes a blower body and a blower pipe. The blower body includes an impeller drivable to rotate by a prime mover, and a casing accommodating the impeller. The casing includes an air inlet and an air outlet. The blower pipe includes a basal end coupled to the air outlet, a distal end from which air ejected through the air outlet is jetted, and a peripheral wall having one or more openings.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: October 4, 2022
    Assignee: MAKITA CORPORATION
    Inventors: Shinsuke Naka, Ryoji Zama
  • Publication number: 20220305625
    Abstract: An impact tool has a smaller diameter in its portion around a front end of an anvil. The impact tool includes a motor, a hammer rotatable by the motor, an anvil having a tool hole to receive a tip tool and being strikable by the hammer in a rotation direction and having a ball hole, a ball movable, through the ball hole, between an entered position at which the ball is at least partially inside the tool hole and a retracted position at which the ball is outside the tool hole, and at least one button operable to move the ball radially.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Yasuhito KAWAI
  • Publication number: 20220305634
    Abstract: A portable power tool comprises a tool accessory, a drive mechanism, a housing and a grip having a rotating axis. The grip comprises grip portion having a first face and a second face. The grip portion is formed in a rotation asymmetric shape to the rotating axis. The grip is attachable to the housing with respect to a rotating angle around the rotating axis at a first angle and a second angle. When the grip is viewed in the rotating axis extending direction, the position of the first surface and the position of the second surface in the circumferential direction around the rotating axis in a case that the rotating angle is at the first angle are different from the position of the first surface and the position of the second surface in the circumferential direction around the rotating axis in a case that the rotating angle is at the second angle.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Tomoki TAKATA, Takuji KIMURA, Atsushi KANOU
  • Publication number: 20220305575
    Abstract: A reciprocating cutting tool reduces dispersion of dust. The reciprocating cutting tool includes a reciprocation converter drivable by a motor, a rod-like slider connected to the reciprocation converter to be reciprocable, a blade holder at the front end of the slider to hold a blade, a power transmission housing housing the reciprocation converter and allowing the slider to protrude from its front end, a cover outward from the power transmission housing, and a fan rotatable together with a rotor in the motor. A first passage of cooling air from the fan is defined between the power transmission housing and the cover. The first passage branches into a second passage toward the blade holder and a third passage not toward the blade holder.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Tomohiro UKAI, Shoichi ISHIKAWA
  • Publication number: 20220311107
    Abstract: A battery pack may be configured to be attached to and detached from an electric device including device-side terminals. The battery pack may include a battery cell, a circuit board electrically connected to the battery cell, and battery-side terminals electrically connected to the circuit board, and configured to be electrically connected to the device-side terminals by contacting the device-side terminals. The battery-side terminals may include a positive power terminal and a negative power terminal, and at least one signal terminal. The positive power terminal may be plated with a first metal on its surface. One of the at least one signal terminal may be plated with a second metal on its surface. The first metal may be a pure metal except for Ag or an alloy not containing Ag. The second metal may be a pure metal that is a noble metal or a noble metal alloy.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Hideyuki TAGA
  • Publication number: 20220305508
    Abstract: An electric blower is configured to blow air. The blower includes a body configured such that a sprayer attachment is attachable thereto. The body is configured to be carried integrally with the sprayer attachment with the sprayer attachment attached to the body. The sprayer attachment includes a container, a nozzle and a liquid supply passage. The container is configured to store a liquid. The nozzle has a discharge opening. The liquid supply passage is connected to the container and the nozzle to lead the liquid.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Fumitoshi NUMATA
  • Publication number: 20220305577
    Abstract: A reciprocating cutting tool switches stably between the on and off states of orbital action or between the degrees of orbital action. The reciprocating cutting tool includes a rod-like slider reciprocable in a front-rear direction, a blade holder at the front end of the slider, an orbital unit that causes the blade holder to perform orbital action vertically in response to reciprocation of the slider, and an orbital switcher that switches between orbital modes operable by the orbital unit. The orbital switcher includes a lever body extending laterally. The lever body includes a first flat surface to support the slider indirectly. The first support flat surface includes a first portion frontward from a lateral central axis of the lever body and a second portion rearward from the central axis.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Yuta YAMASHITA, Tomohiro UKAI
  • Publication number: 20220311082
    Abstract: A battery pack may include a plurality of battery cells, a cell holder which holds the plurality of battery cells, and a casing which houses the cell holder. Each of the plurality of battery cells may have a substantially cylindrical shape and have a longitudinal direction in a front-rear direction. The plurality of battery cells may be arranged side by side in a left-right direction and an up-down direction. The cell holder may include an inner air supply opening which is defined in a surface facing the plurality of battery cells in a first direction orthogonal to the front-rear direction and an inner exhaust opening which is defined in a surface facing the plurality of battery cells in the front-rear direction. The casing may include an outer air supply opening and an outer exhaust opening which is defined in a surface facing the inner exhaust opening of the cell holder.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventor: Hideyuki TAGA