公开(公告)号：US20230191502A1

公开(公告)日：2023-06-22

申请号：US17986337

申请日：2022-11-14

申请人： MAKITA CORPORATION

发明人： Tomoro AOYAMA ,  Takeshi KAMIYA

IPC分类号： B23B31/107 ,  B23B31/22

CPC分类号： B23B31/107 ,  B23B31/22

摘要： To reduce size increase, an impact tool includes a motor, a spindle located frontward from the motor, rotatable by the motor, and having a support hole extending rearward from a front end of the spindle, a hammer supported by the spindle, a ball between the spindle and the hammer, and an anvil received in the support hole and strikable by the hammer in a rotation direction. The anvil has a rear end located rearward from the ball.

公开(公告)号：US20220314411A1

公开(公告)日：2022-10-06

申请号：US17695965

申请日：2022-03-16

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25D16/00 ,  B25B21/02

摘要： 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.

公开(公告)号：US20190319563A1

公开(公告)日：2019-10-17

申请号：US16379893

申请日：2019-04-10

申请人： MAKITA CORPORATION

发明人： Itsuku KATO ,  Katsuna HAYASHI ,  Kouichi TAKEDA ,  Hidenori NAGASAKA ,  Takeshi KAMIYA

IPC分类号： H02P6/28 ,  B25F5/00 ,  B23B45/00 ,  B23B45/02

摘要： An electric power tool may include a three-phase brushless motor configured to drive a tool, a gear reducer provided between the motor and the tool. The gear reducer is configured to selectively change a reduction ratio from the motor to the tool between a first reduction ratio and a second reduction ratio. The electric power tool may further include a motor controller configured to drive the motor with rectangular waves. The motor controller is configured to selectively change a conduction angle of each rectangular wave between at least a first conduction angle and a second conduction angle.

公开(公告)号：US20230191566A1

公开(公告)日：2023-06-22

申请号：US17988075

申请日：2022-11-16

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25B21/02

CPC分类号： B25B21/02

摘要： To reduce size increase, an impact tool includes a motor, a spindle located frontward from the motor and rotatable by the motor, an inner hammer supported by the spindle, an outer hammer surrounding the inner hammer and rotatable together with the inner hammer, an anvil strikable by the inner hammer in a rotation direction, a hammer case accommodating the inner hammer and the outer hammer, and a bearing held in the hammer case and supporting the outer hammer in a rotatable manner.

公开(公告)号：US20220314417A1

公开(公告)日：2022-10-06

申请号：US17694822

申请日：2022-03-15

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25F5/00

摘要： 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.

公开(公告)号：US20200238483A1

公开(公告)日：2020-07-30

申请号：US16728094

申请日：2019-12-27

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25B21/02

摘要： A power tool allows mode switching and clutch operation torque switching using a single ring. An electric vibration driver drill includes an internal gear that meshes with planetary gears, an internal gear lock pin that moves forward relative to the internal gear to lock the internal gear, a first vibration cam fixed to a spindle, a second vibration cam that rubs against the first vibration cam and rotate relative to a gear housing, a vibration switch lever that moves forward relative to the second vibration cam to lock the second vibration cam in a nonrotatable manner, and an annular change ring that switches between forward movement and rearward movement of the internal gear lock pins and switches between forward movement and rearward movement of the vibration switch lever.

公开(公告)号：US20150174753A1

公开(公告)日：2015-06-25

申请号：US14581316

申请日：2014-12-23

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25F5/02 ,  B23B45/00

CPC分类号： B25F5/026 ,  B25F5/008 ,  B25F5/02 ,  Y10T16/4713

摘要： An auxiliary handle (10) comprises a first clamp member (21), a second clamp member (31), an operation rod (40) and a grip (50). By rotation of the operation rod (40), the first clamp member (21) is moved toward a distal end of the operation rod (40), and at the same time, the second clamp member (31) is moved toward a base end of the operation rod (40). Accordingly, the first clamp member (21) and the second clamp member (31) are moved to be close to each other. As a result, an auxiliary handle attachable part (140) of a screw driver (100) is clamped by the first clamp member (21) and the second clamp member (31), and thereby the auxiliary handle (10) is attached to the screw driver (100).

摘要翻译： 辅助把手（10）包括第一夹紧构件（21），第二夹紧构件（31），操作杆（40）和把手（50）。 通过操作杆（40）的旋转，第一夹紧构件（21）向操作杆（40）的前端移动，同时第二夹紧构件（31）向基端 的操作杆（40）。 因此，第一夹紧构件（21）和第二夹紧构件（31）移动成彼此靠近。 结果，螺丝刀（100）的辅助把手可附接部件（140）由第一夹紧部件（21）和第二夹紧部件（31）夹紧，辅助手柄（10）附接到 螺丝刀（100）。

公开(公告)号：US20240326205A1

公开(公告)日：2024-10-03

申请号：US18613290

申请日：2024-03-22

申请人： MAKITA CORPORATION

发明人： Kazunori KINOSHITA ,  Takeshi KAMIYA ,  Yumiko NODA

IPC分类号： B25B21/02 ,  B25B23/00 ,  B25F5/02

CPC分类号： B25B21/026 ,  B25B23/0035 ,  B25F5/02

摘要： An impact wrench includes: a brushless motor comprising a stator and a rotor, which rotates relative to the stator, an impact mechanism, which is rotated by the rotor, an anvil, which is impacted by the impact mechanism; and one or more battery-mounting parts, on which one or more battery packs is (are respectively) mounted. The maximum fastening torque of the anvil is 3,200 N·m or more.

公开(公告)号：US20230191565A1

公开(公告)日：2023-06-22

申请号：US17981569

申请日：2022-11-07

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25B21/02

CPC分类号： B25B21/02 ,  B25F5/001

摘要： To reduce size increase, an impact tool includes a motor, a spindle located frontward from the motor and rotatable by the motor, a hammer supported by the spindle, an anvil strikable by the hammer in a rotation direction and having an insertion hole extending rearward from a front end of the anvil, a locking member supported by the anvil and movable to a locking position for locking a tip tool placed in the insertion hole and to an unlocking position for unlocking the tip tool, and a bit sleeve surrounding the anvil. The bit sleeve is movable to a movement-restricting position for restricting radially outward movement of the locking member and to a movement-permitting position for permitting radially outward movement of the locking member. The bit sleeve is at least partly between the hammer and the anvil in a radial direction.

公开(公告)号：US20220314418A1

公开(公告)日：2022-10-06

申请号：US17694858

申请日：2022-03-15

申请人： MAKITA CORPORATION

发明人： Takeshi KAMIYA

IPC分类号： B25F5/00

摘要： 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.