公开(公告)号：US10155304B2

公开(公告)日：2018-12-18

申请号：US15459789

申请日：2017-03-15

Applicant: MAKITA CORPORATION

Inventor： Miyabi Ito ,  Ryunosuke Kumagai ,  Shin Sugiura ,  Akira Mizutani ,  Takahiro Kawakami

IPC: B24B23/02 ,  B25F5/02 ,  H02J7/00

Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.

公开(公告)号：US09463565B2

公开(公告)日：2016-10-11

申请号：US14208698

申请日：2014-03-13

Applicant: MAKITA CORPORATION

Inventor： Hidenori Nagasaka ,  Ryunosuke Kumagai

IPC: B25F5/02

CPC classification number: B25F5/02

Abstract: The present invention provides a rechargeable electric tool in which a battery pack detachably mounted to a mounting part, which is formed lower than an opening provided at a housing, wherein a seal member is held in the housing to seal between the opening and the battery pack mounted to the mounting part. A projection projecting toward the opening side is provided at the seal member, and a passing hole that penetrates the projection and the seal member and allows a lead line connecting an electric component accommodated on the opening side in the housing to the battery pack to pass therethrough is formed.

Abstract translation: 本发明提供了一种可再充电电动工具，其中可拆卸地安装到安装部分上的电池组件，该电池组件形成在比设置在壳体处的开口低的位置，其中密封构件被保持在壳体中以在开口和电池组之间进行密封 安装到安装部件上。 在密封构件上设置有朝向开口侧突出的突起，并且穿过突起和密封构件的通孔，并且允许将容纳在壳体中的开口侧的电气部件与电池组连接的引线通过 形成了。

公开(公告)号：US11192223B2

公开(公告)日：2021-12-07

申请号：US16491731

申请日：2017-12-18

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Tokuo Hirabayashi ,  Tomoyuki Kondo

IPC: B25B21/02 ,  B25B19/00

Abstract: An impact tool (1; 1A) includes a spindle (12) rotated by a motor (10) and a hammer (70) held by the spindle. The hammer is designed to impact an anvil (14) in a rotational direction. A case (8) houses the hammer. A first bearing (78A) and a second bearing (78B) are held in the case and arranged along the axial direction. The first bearing and the second bearing directly hold the anvil in a rotatable manner.

公开(公告)号：US11045926B2

公开(公告)日：2021-06-29

申请号：US16244356

申请日：2019-01-10

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Tokuo Hirabayashi ,  Hidenori Nagasaka ,  Manabu Sugimoto

IPC: B25F5/00 ,  B25B21/02 ,  B25F5/02 ,  B25B23/14 ,  B25D11/04

Abstract: An impact driver or impact tool includes a motor, a motor housing that houses the motor, a grip housing integrally provided with the motor housing, a hammer case is disposed frontward of the motor housing, a spindle rotated by the motor, a hammer housed inside the hammer case and configured to be rotated by the spindle, and an anvil housed inside the hammer case which anvil is configured to be impacted by the hammer. In this impact driver, a length from a rear end of the motor housing to a front end of the anvil (i.e., the front-rear length of a main body) is less than 128 mm.

公开(公告)号：US10994404B2

公开(公告)日：2021-05-04

申请号：US16185991

申请日：2018-11-09

Applicant: MAKITA CORPORATION

Inventor： Miyabi Ito ,  Ryunosuke Kumagai ,  Shin Sugiura ,  Akira Mizutani ,  Takahiro Kawakami

IPC: B24B23/02 ,  B25F5/02 ,  H02J7/00

Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.

公开(公告)号：US10967496B2

公开(公告)日：2021-04-06

申请号：US16241352

申请日：2019-01-07

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Tokuo Hirabayashi

IPC: B25D17/26 ,  B25B21/02 ,  B25D11/04

Abstract: An impact driver includes a motor, a spindle rotated by the motor, a hammer that is movable forward and rearward with respect to the spindle and that has an inner peripheral portion facing the spindle, and an anvil struck in a rotational direction by the hammer. A grease supply path is provided to supply grease to the inner peripheral portion of the hammer.

公开(公告)号：US10821577B2

公开(公告)日：2020-11-03

申请号：US15880728

申请日：2018-01-26

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Akira Tomonaga ,  Kazuya Arakawa

IPC: B25F5/00 ,  B25B21/02 ,  B25F5/02 ,  B25D11/10 ,  B25D11/04 ,  F16H3/54

Abstract: A power tool includes a motor disposed in a motor housing, a handle extending downward from the motor housing, a main switch provided on the handle and configured to switch the motor ON and OFF, and a state-changing operation part located on a lower portion of the motor housing or on an upper-end portion of the handle. The state-changing operation part is located upward of the main switch and is configured to effect a change of a rotational state of the motor, other than a direction of rotation of the motor, or an illumination level of a light.

公开(公告)号：US09630310B2

公开(公告)日：2017-04-25

申请号：US14807291

申请日：2015-07-23

Applicant: MAKITA CORPORATION

Inventor： Miyabi Ito ,  Ryunosuke Kumagai ,  Shin Sugiura ,  Akira Mizutani ,  Takahiro Kawakami

IPC: B25F5/02 ,  B24B23/00 ,  H02J7/00

CPC classification number: B25F5/02 ,  B24B23/028 ,  H02J7/00 ,  H02J7/0013 ,  H02J7/0045 ,  H02J7/0063

Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.

公开(公告)号：US20150158157A1

公开(公告)日：2015-06-11

申请号：US14405285

申请日：2013-05-31

Applicant: MAKITA CORPORATION

Inventor： Tokuo Hirabayashi ,  Ryunosuke Kumagai ,  Takeshi Nishimiya ,  Goshi Ishikawa ,  Takuya Kusakawa

IPC: B25B23/00 ,  B25B21/00

CPC classification number: B25B23/0064 ,  B25B21/00

Abstract: An electric power tool to tighten a screw while drilling a hole with the screw in a tightening-target-object includes a motor as a drive source. A motor control unit controls the motor such that the rotation number of the motor is a rotation number according to specifics of an operation input received by an operation receiving unit with a preset maximum rotation number as an upper limit. At a start-up of the motor, the maximum rotation number is set to a first maximum rotation number. When it is detected that a hole has been drilled in the tightening-target-object with the screw after the start-up of the motor, the maximum rotation number is set to a second maximum rotation number lower than the first maximum rotation number. The second maximum rotation number is set according to a material thickness so as to become lower as the material thickness is smaller.

Abstract translation: 用于在紧固目标物体中用螺钉钻孔时拧紧螺钉的电动工具包括电动机作为驱动源。 电动机控制单元控制电动机，使得电动机的转数根据由预设的最大转数作为上限的操作接收单元所接收的操作输入的细节而为旋转数。 在马达启动时，最大转数被设定为第一最大转数。 当检测到在电动机起动之后用螺钉在紧固目标物体中钻孔时，最大转数被设定为低于第一最大转数的第二最大转数。 第二最大转数根据材料厚度设定为随着材料厚度变小而变低。

公开(公告)号：US12220791B2

公开(公告)日：2025-02-11

申请号：US18409099

申请日：2024-01-10

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Tokuo Hirabayashi ,  Hidenori Nagasaka ,  Manabu Sugimoto

IPC: B25B21/02 ,  B25F5/00 ,  B25F5/02 ,  B25B23/14 ,  B25D11/04

Abstract: An impact tool includes a brushless motor having a rotor extending in a front-rear direction and disposed in a motor housing constituted by left, right and rear motor housings. A battery pack is disposed below the motor housing in an up-down direction. A plurality of first screws extend in a left-right direction and fix the left motor housing to the right motor housing. A plurality of second screws extend in the front-rear direction and fix the rear motor housing to the left and right motor housings. A fan is disposed between the rotor and the rear motor housing, a grip housing is disposed downward of the motor housing, and a planetary gear mechanism is disposed frontward of the motor. A spindle is disposed frontward of the planetary gear mechanism, a hammer is disposed on an outer circumference of the spindle, and an anvil is disposed frontward of the hammer.