公开(公告)号：US20040017119A1

公开(公告)日：2004-01-29

申请号：US10449331

申请日：2003-05-29

Applicant: Makita Corporation ,  Kofu Meidensya Electric Mfg. Co., Inc. ,  Makita Corporation

Inventor： Hirokatsu Yamamoto ,  Simoru Otogao

IPC: H02K011/00 ,  H02K009/00

CPC classification number: H02K29/08 ,  H02K9/06

Abstract: It is an object of the present teachings to provide a technique that rationalizes the structure of the brushless motor so as to save space in the power tool. According to the present teachings, a representative brushless motor utilized in a power tool may comprise a stator, a rotor and a cooling fan. The brushless motor is disposed within the power tool. The brushless motor is adapted to supply driving current to the stator to drive a tool bit of the power tool by rotating the rotor. The cooling fan is molded of a magnetic or conductive material so that the cooling fan also serves as a rotating position detector that detects the rotating position of the rotor with respect to the stator. Because the cooling fan may also have a function of rotating position detector of the rotor, the inner space of the power tool can be rationalized.

Abstract translation: 本发明的目的是提供一种使无刷电动机的结构合理化以便节省电动工具空间的技术。 根据本教导，在动力工具中使用的代表性的无刷电动机可以包括定子，转子和冷却风扇。 无刷电动机设置在动力工具内。 无刷电动机适于通过旋转转子向定子提供驱动电流以驱动电动工具的工具头。 冷却风扇由磁性或导电材料模制而成，使得冷却风扇也用作检测转子相对于定子的旋转位置的旋转位置检测器。 因为冷却风扇也可以具有旋转位置检测器的功能，因此可以使电动工具的内部空间合理化。

公开(公告)号：US20250162116A1

公开(公告)日：2025-05-22

申请号：US18923937

申请日：2024-10-23

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Toshiya Murakami

IPC: B25C1/04 ,  B25F5/00

Abstract: A driving tool includes a driver, and a piston connected to the driver. The piston and the driver are housed within a cylinder such that the piston slidably moves within the cylinder by gas active pressure. The cylinder is positioned in an adjoining arear of an axis line of the piston. The cylinder is made of iron. Accordingly, a weight in the adjoining arear of the axis line of the piston is more than a cylinder made of aluminum or resin. Because of the large weight in the adjoining area of the axis line of the piston, a reaction force against a movement of the piston and a driving of the driver can be effectively restrained.

公开(公告)号：USD1074364S1

公开(公告)日：2025-05-13

申请号：US29869633

申请日：2023-01-05

Applicant: MAKITA CORPORATION

Designer： Tatsuya Kobayashi ,  Takuma Niiyama

公开(公告)号：US20250135624A1

公开(公告)日：2025-05-01

申请号：US18904211

申请日：2024-10-02

Applicant: MAKITA CORPORATION

Inventor： Masaya NAGAO ,  Norikazu BABA

IPC: B25F5/00 ,  H01M50/242 ,  H01M50/247

Abstract: A battery holder supported by a main body housing so as to be displaceable in an up-down direction has a main body extension, a holder lower portion at a lower part, and a terminal supported by the battery holder so as to be displaceable in the up-down direction. The battery holder has a first elastic body interposed between the main body housing and the battery holder, a second elastic body interposed between the battery holder and the terminal, and a third elastic body interposed between the holder lower portion and the main body housing. The first to third elastic bodies absorb impacts in the event of a drop, thereby reducing damage to the battery.

公开(公告)号：US12284952B2

公开(公告)日：2025-04-29

申请号：US17876061

申请日：2022-07-28

Applicant: MAKITA CORPORATION

Inventor： Satoshi Takahashi ,  Akira Shimizu

IPC: A01G3/053 ,  B25F5/02

Abstract: A working machine may include: a working part; a prime mover configured to drive the working part; a housing supporting the working part; a handle attached to the housing such that the handle is rotatable about a rotation axis with respect to the housing and configured to be grasped by a user; and an elastic member arranged between the housing and the handle. The housing may comprise a first surface. The handle may include a second surface that faces the first surface in a rotation axis direction with an interval therebetween. The elastic member may be arranged between the first surface and the second surface.

公开(公告)号：US20250121484A1

公开(公告)日：2025-04-17

申请号：US18669767

申请日：2024-05-21

Applicant: MAKITA CORPORATION

Inventor： Nobuyuki HOSHIYAMA ,  Masaya NAGAO

IPC: B25F5/02 ,  B25F5/00

Abstract: A driving tool has a tool body, a driver that moves downward to strike a driven member, a grip extending rearward from the tool body, a battery mounting section provided at a rear part of the grip to which a battery can be attached, a motor housing extending rearward from the tool body below the grip and accommodating an electric motor that moves the driver, and a controller arranged below the electric motor to control an operation of the electric motor.

公开(公告)号：USD1071418S1

公开(公告)日：2025-04-15

申请号：US29829892

申请日：2022-03-08

Applicant: MAKITA CORPORATION

Designer： Hiroto Nishiguchi ,  Xing Xu ,  Yu Wang

公开(公告)号：US20250118983A1

公开(公告)日：2025-04-10

申请号：US18836394

申请日：2023-02-14

Applicant: MAKITA CORPORATION

Inventor： Mamoru SAKAI ,  Masaya MIZUTANI ,  Makoto ITO

IPC: H02J7/06 ,  H02J7/00

Abstract: A charging adapter includes a first coupler, a second coupler, a power delivery path, an arithmetic circuit, and a transmission circuit. The first coupler is detachably coupled to a power delivery adapter. The power delivery adapter outputs a DC voltage. The second coupler is detachably coupled to a battery pack. The power delivery path electrically couples the first coupler to the second coupler. The arithmetic circuit calculates a control parameter of the power delivery adapter based on a state of the battery pack coupled to the second coupler. The transmission circuit transmits the calculated control parameter to the power delivery adapter through the first coupler.

公开(公告)号：US20250117019A1

公开(公告)日：2025-04-10

申请号：US18907994

申请日：2024-10-07

Applicant: MAKITA CORPORATION

Inventor： Tatsuya YOSHIKAWA ,  Hirokatsu YAMAMOTO

IPC: G05D1/435

Abstract: A working robot may include a robot body, a movement unit, a working unit supported by the robot body, a height adjustment unit configured to change a height level of the working unit relative to the robot body, and a control unit. The control unit may be configured to execute an autonomous operation including a working process of causing the working unit to work while moving the robot body by the movement unit and a height adjustment process of causing the height adjustment unit to adjust the height level of the working unit relative to the robot body in multiple steps. The working robot may be configured to be switched between a first state in which the control unit executes the height adjustment process in the autonomous operation and a second state in which the control unit does not execute the height adjustment process in the autonomous operation.

公开(公告)号：US20250114922A1

公开(公告)日：2025-04-10

申请号：US18903036

申请日：2024-10-01

Applicant: MAKITA CORPORATION

Inventor： Yasuhito KAWAI

IPC: B25B21/02

Abstract: An impact tool (1) includes: a motor (6); a spindle (8) rotated by the motor; a spindle groove (8D) formed in the spindle; a ball (48) held in the spindle groove; a hammer (47) supported on the spindle via the ball; a spring (49, 50), which biases the hammer forward; and an anvil (10) configured to be impacted by the hammer in a rotational direction. The depth of the spindle groove (8D) differs in accordance with the location thereof in an axial direction of the spindle.