公开(公告)号：US12290892B2

公开(公告)日：2025-05-06

申请号：US18517311

申请日：2023-11-22

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Hiroki Takesashi

IPC: B23Q11/00 ,  B23Q11/12 ,  B25B21/02

Abstract: An impact tool includes a housing, an impact mechanism unit, a motor, and a dust collection fan. The housing is configured to mount a dust collection attachment. The impact mechanism unit is disposed inside the housing. The impact mechanism unit has a front end to which a tool bit is mounted and an impact element that reciprocates. The impact mechanism unit is configured to impact the tool bit by the impact element. The motor is disposed such that a rotation shaft of the motor intersects with an impact axis direction of the impact mechanism unit inside the housing. The dust collection fan is disposed on the rotation shaft. The dust collection fan is disposed below the motor.

公开(公告)号：US12257684B2

公开(公告)日：2025-03-25

申请号：US17986369

申请日：2022-11-14

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Yoshitaka Machida ,  Hitoshi Iida ,  Kazuki Nakagawa

IPC: B25D16/00 ,  B25D11/06 ,  B25D11/10 ,  B25D17/24

Abstract: A power tool, such as a rotary hammer, includes a housing, an output shaft for mounting a tool accessary and a motor having a motor shaft that generates a rotational output for rotating and linearly hammering the output shaft. The rotational output of the motor shaft is coupled to the output shaft via a driving mechanism that includes a hammer mechanism. An intervening member is axially movable relative to the motor shaft and is operably coupled between the motor shaft and the hammer mechanism. The hammer mechanism and the output shaft are supported by a movable support that is axially movable relative to the housing. Because the output shaft and the driving mechanism are movable relative to the motor and the housing, which preferably includes handle, via the intervening member and the movable support during hammering operations, vibration generated during hammering operations can be dampened before reaching the housing.

公开(公告)号：US11897109B2

公开(公告)日：2024-02-13

申请号：US17575776

申请日：2022-01-14

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Mizuki Yamamoto

IPC: B25D17/04

CPC classification number: B25D17/043 ,  B25D2211/068 ,  B25D2250/345 ,  B25D2250/371

Abstract: An objective is to provide a technique to securely protect the striking tool even when the striking tool inadvertently falls down. A striking tool including a rotating shaft relatively rotatably connect a main body with a handle, a first elastic member reducing transmitting of vibration from the main body to the handle in a case that the handle relatively rotates to the main body, wherein the handle includes a battery mounting portion to which battery to drive the motor is attachable and the handle is arranged to relatively move to the main body across the rotating shaft, and an adjuster such that the relative movement amount of the handle to the main body in a predetermined direction is adjusted to be larger than the relative movement amount in a direction other than the predetermined direction.

公开(公告)号：US11794324B2

公开(公告)日：2023-10-24

申请号：US16830375

申请日：2020-03-26

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Yoshitaka Machida ,  Hitoshi Iida

IPC: B25D11/00 ,  B25D16/00 ,  B25D17/20 ,  B23Q11/00

CPC classification number: B25D11/005 ,  B23Q11/0046 ,  B23Q11/0071 ,  B25D16/00 ,  B25D17/20 ,  B25D2216/0023 ,  B25D2217/0057 ,  B25D2250/095 ,  B25D2250/221

Abstract: A dust collecting system includes a power tool and a dust collector. The power tool includes at least one battery-mounting part, a first motor, a driving mechanism and a body housing. The at least one battery-mounting part is each configured to removably receive a battery. The first motor is configured to operate with electric power supplied from the battery. The driving mechanism is configured to drive the tool accessory by power of the first motor. The body housing houses the first motor and the driving mechanism. The dust collecting system includes a control device configured to control operation of at least one of the power tool and the dust collector according to a state of the whole dust collecting system.

公开(公告)号：US11318596B2

公开(公告)日：2022-05-03

申请号：US17072444

申请日：2020-10-16

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Yusuke Takano

IPC: B25D11/06 ,  B25D11/10 ,  B25D16/00 ,  B25D17/24

Abstract: A power tool includes a motor having a motor shaft, a first intermediate shaft, and a second intermediate shaft extending in parallel to the first intermediate shaft. An output shaft removably holds a tool accessory and has a driving axis extending in parallel to the first and second intermediate shafts. A motion-converting mechanism converts rotation of the first intermediate shaft to linearly hammer the tool accessory. A rotation-transmitting mechanism transmits rotation of the second intermediate shaft to rotate the output shaft. A rotational axis of the motor shaft intersects, or is skewed relative to, the driving axis. A pair of first gears, e.g., bevel gears, operably couples the motor shaft to a first one of the first and second intermediate shafts. A pair of second gears operably couples the first one of the first and second intermediate shafts to a second one of the first and second intermediate shafts.

公开(公告)号：US10512997B2

公开(公告)日：2019-12-24

申请号：US15845204

申请日：2017-12-18

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane

IPC: B23Q11/00 ,  B23B47/34

Abstract: A dust collector for an electric power tool includes a main body case, a tubular sliding portion, and a dust collection portion. The main body case is mountable to an electric power tool. The tubular sliding portion is disposed on the main body case. The sliding portion includes a nozzle on a front end thereof. The nozzle includes a suction opening. The dust collection portion is configured to accumulate dust suctioned from the nozzle. The sliding portion includes a guided portion supported by a guiding portion disposed on the main body case. The guided portion is supported slidably in a front-rear direction, and the guiding portion and the guided portion are disposed in a region on a half side with respect to a line on a cross section passing through a center of the sliding portion.

公开(公告)号：US20180200852A1

公开(公告)日：2018-07-19

申请号：US15845204

申请日：2017-12-18

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane

IPC: B23Q11/00 ,  B23B39/00

CPC classification number: B23Q11/0046 ,  B23B47/34 ,  B23B2260/058 ,  Y10T408/50

Abstract: A dust collector for an electric power tool includes a main body case, a tubular sliding portion, and a dust collection portion. The main body case is mountable to an electric power tool. The tubular sliding portion is disposed on the main body case. The sliding portion includes a nozzle on a front end thereof. The nozzle includes a suction opening. The dust collection portion is configured to accumulate dust suctioned from the nozzle. The sliding portion includes a guided portion supported by a guiding portion disposed on the main body case. The guided portion is supported slidably in a front-rear direction, and the guiding portion and the guided portion are disposed in a region on a half side with respect to a line on a cross section passing through a center of the sliding portion.

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：US12023790B2

公开(公告)日：2024-07-02

申请号：US17951412

申请日：2022-09-23

Applicant: MAKITA CORPORATION

Inventor： Kazusa Fukuda ,  Masaya Nagao ,  Kiyonobu Yoshikane ,  Toshiro Hirayama

IPC: B25C1/04

CPC classification number: B25C1/041 ,  B25C1/047

Abstract: A driving tool comprises a cylinder extending in an up-down direction and a piston that moves downward within the cylinder due to a compressed gas to drive a driving member. The driving tool further comprises a main body housing that houses the cylinder and a grip extending rearward from a rear surface of the main body housing. The driving tool further comprises an upper chamber that is provided above the cylinder and communicates with the cylinder. The driving tool further comprises an air chamber that extends downward from the upper chamber and that extends only in an area on a right or left side of the main body housing with respect to both an axis center of the cylinder and an axis center of the grip.

公开(公告)号：US11981005B2

公开(公告)日：2024-05-14

申请号：US17953420

申请日：2022-09-27

Applicant: MAKITA CORPORATION

Inventor： Shun Kuriki ,  Masaya Nagao ,  Kiyonobu Yoshikane ,  Toshiro Hirayama

IPC: B25C1/04 ,  B25C1/06

CPC classification number: B25C1/047 ,  B25C1/06

Abstract: A rotary shaft is spline coupled to a carrier of a final-stage planetary gear mechanism. A bearing for supporting the rotary shaft is arranged on an outer circumferential side of the carrier. The bearing and the carrier are arranged so as to overlap in a direction perpendicular to a motor axis.