公开(公告)号：US12109677B2

公开(公告)日：2024-10-08

申请号：US17845572

申请日：2022-06-21

Applicant: MAKITA CORPORATION

Inventor： Koji Takahagi ,  Yuta Araki

IPC: B25F5/02 ,  B25B21/00 ,  B25F5/00 ,  H02K7/14

CPC classification number: B25F5/02 ,  B25B21/00 ,  B25F5/001 ,  H02K7/145

Abstract: A driver drill allows smooth change of the drive conditions of a motor. The driver drill includes a motor, an output unit located frontward from the motor and rotatable with a rotational force from the motor, a trigger lever operable to activate the motor, a forward-reverse switch lever operable to change a rotation direction of the motor, a first operation member operable to change a drive condition of the motor, a second operation member located upward from the first operation member and operable to change the drive condition of the motor, and a controller that sets the drive condition of the motor in response to an operation on at least one of the first operation member or the second operation member.

公开(公告)号：US11890730B2

公开(公告)日：2024-02-06

申请号：US17806163

申请日：2022-06-09

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki ,  Akira Ito

IPC: B25B23/14 ,  B25B23/147 ,  B25B21/02 ,  B25D16/00 ,  B25B21/00

CPC classification number: B25B23/1475 ,  B25B21/007 ,  B25B21/023 ,  B25D16/006 ,  B25D2216/0084

Abstract: A driver drill includes a motor housing that holds an electric motor, an axis of rotation of a rotor of the electric motor extending in a front-rear direction of the driver drill, a grip housing having an upper end connected to a lower part of the motor housing and an enlarged-part housing connected to a lower end of the grip housing and spaced from the motor housing in an up-down direction of the driver drill that is perpendicular to the front-rear direction. A torque setting of the driver drill is changeable, and the driver drill is changeable between a setting unlocked state in which the torque setting is changeable and a setting locked state in which the torque setting is not changeable.

公开(公告)号：US12122031B2

公开(公告)日：2024-10-22

申请号：US17952510

申请日：2022-09-26

Applicant: MAKITA CORPORATION

Inventor： Yukiko Eba ,  Yuta Araki

IPC: B25F5/00 ,  B25B21/00

CPC classification number: B25F5/001 ,  B25B21/00

Abstract: An electric work machine reduces damage to its components under a greater load on a spindle. An electric work machine includes a motor, a planetary gear assembly rotatable with a rotational force from the motor and including a carrier having a hole having an inner surface including two carrier flat surfaces, a spindle including a rear portion received in the hole and having an outer surface including two spindle flat surfaces, and a spindle locking assembly that transmits a rotational force in one direction from the carrier to the spindle and including a lock cam surrounding the spindle frontward from a front surface of the carrier and rotatable together with the spindle, a lock ring surrounding the lock cam, and a plurality of cylindrical members between the lock cam and the lock ring.

公开(公告)号：US11673240B2

公开(公告)日：2023-06-13

申请号：US16935758

申请日：2020-07-22

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki ,  Motohiro Omura ,  Akira Ito

IPC: B25B21/00 ,  B25B23/147 ,  B25F5/00

CPC classification number: B25B21/008 ,  B25B23/147 ,  B25F5/001

Abstract: A driver-drill (1) includes: a controller (32), which stops rotation of a brushless motor (9) when a torque applied to a spindle (26) reaches a prescribed clutch-actuation torque; and a dial (65), which is capable of specifying, to the controller (32), the setting of the prescribed clutch-actuation torque within a prescribed high-low range of values. In the controller (32), a relationship between clutch-actuation torques and each value in the high-low range is set such that, in a first range in which the values are low, changes in the clutch-actuation torques are the same in the low-speed mode and in the high-speed mode and such that, in a second range outside of the first range, the clutch-actuation torques in the low-speed mode are higher than in the high-speed mode.

公开(公告)号：US11305406B2

公开(公告)日：2022-04-19

申请号：US16793302

申请日：2020-02-18

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki ,  Hidenori Nagasaka ,  Manabu Sugimoto

IPC: B25B21/02 ,  B25D16/00

Abstract: A power tool, such as a hammer driver-drill (1), includes a spindle (26) that is axially and rotatable supported inside a metal gear case (41). A first cam (83) is affixed to the spindle so as to rotate therewith and is housed in the gear case (41). A second cam (84) is disposed around spindle such that it is rotatable separately with respect to the spindle and can be brought into contact with the first cam. Hammer-switching levers (95) are movable relative to the gear case between an advanced position, at which rotation of the second cam is restricted (blocked), and a retracted position, at which the rotational restriction on the second cam is released. Receiving members (89) are respectively interposed between the gear case and the hammer-switching levers and are configured to absorb vibration generated when a hammering operation is being performed using the power tool.

公开(公告)号：US12097604B2

公开(公告)日：2024-09-24

申请号：US17795398

申请日：2021-03-02

Applicant: MAKITA CORPORATION

Inventor： Takeshi Kamiya ,  Koji Takahagi ,  Tomohiko Imae ,  Jun Ueda ,  Yuta Araki ,  Hidenori Nagasaka

IPC: B25F5/00 ,  B25F5/02

CPC classification number: B25F5/026

Abstract: A power tool receives a reaction force with an auxiliary handle attached to the power tool. An auxiliary handle attachable to a power tool includes a first arm, a second arm that fastens, together with the first arm, at least a part of the power tool located between the first arm and the second arm, a handle, a grip sensor that detects the handle being gripped with the first arm and the second arm fastening at least the part of the power tool in between, and a signal output unit that outputs, to the power tool, a grip signal indicating that the handle is gripped based on a detection signal from the grip sensor.

公开(公告)号：US11951605B2

公开(公告)日：2024-04-09

申请号：US18090203

申请日：2022-12-28

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki

IPC: B25F5/00 ,  B25F5/02 ,  B25F3/00 ,  H02P3/06

CPC classification number: B25F5/02 ,  B25F3/00 ,  H02P3/06

Abstract: An adapter is configured to be removably mounted to a rotary tool, the rotary tool having a battery mounting part configured such that a battery can be removably mounted thereto and an output shaft that is rotationally driven by power supply from the battery mounted to the battery mounting part. The adapter has a housing, a first mounting part that is formed on the housing and configured to be removably mounted to the battery mounting part, a second mounting part that is formed on the housing and configured such that the battery can be removably mounted thereto, and a detection part that is configured to detect the moving state of the adapter in at least one direction.

公开(公告)号：US11911881B2

公开(公告)日：2024-02-27

申请号：US18140717

申请日：2023-04-28

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki ,  Motohiro Omura ,  Akira Ito

IPC: B25B21/00 ,  B25F5/00 ,  B25B23/147

CPC classification number: B25B21/008 ,  B25B23/147 ,  B25F5/001

Abstract: A rotary tool includes a motor having an axis of rotation extending in a forward-rearward direction of the rotary tool. A grip part is located below the axis of rotation in an up-down direction that is perpendicular to the forward-rearward direction. A planet gear is configured to be driven by the motor. An internal gear meshes with the planet gear and is movable in the forward-rearward direction to change a speed. A sun gear meshes with the planet gear, and an output shaft is configured to be rotationally driven by the sun gear. A sensor is configured to detect the forward-rearward movement of the internal gear, the sensor being disposed downward of the sun gear in the up-down direction.

公开(公告)号：US11420310B2

公开(公告)日：2022-08-23

申请号：US16722595

申请日：2019-12-20

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki ,  Akira Ito

IPC: B23B23/00 ,  B25B23/147 ,  B25B21/02 ,  B25D16/00 ,  B25B21/00

Abstract: A power tool, such as a hammer driver-drill (1), includes: a motor (8); a motor housing (7A) that holds the motor (8); a grip housing (7B) connected to the motor housing (7A); a battery mount housing or enlarged-part housing (7C) connected to the grip housing (7B); and a dial (24) that is provided in the enlarged-part housing (7C) such that it is rotatable about a dial shaft (29). A threshold for stopping the motor (8) is settable by rotating the dial (24).

公开(公告)号：USD937063S1

公开(公告)日：2021-11-30

申请号：US29728583

申请日：2020-03-19

Applicant: MAKITA CORPORATION

Designer： Tomonori Kawase ,  Yuta Araki