公开(公告)号：US20240246212A1

公开(公告)日：2024-07-25

申请号：US18541199

申请日：2023-12-15

Applicant: Makita Corporation

Inventor： Kiyonobu Yoshikane ,  Shun Kuriki

IPC: B25C1/04 ,  B25C1/00

CPC classification number: B25C1/047 ,  B25C1/005 ,  B25C1/008 ,  B25C1/06

Abstract: An engaging portion of a driver has an engaging portion front surface coplanar with a striking portion front surface and an engaging portion rear surface coplanar with a striking portion rear surface. The engaging portion has an engagement surface that is parallel to a rotation axis of a lifter.

公开(公告)号：US12151350B2

公开(公告)日：2024-11-26

申请号：US18304410

申请日：2023-04-21

Applicant: MAKITA CORPORATION

Inventor： Masaya Nagao ,  Norikazu Baba ,  Shun Kuriki ,  Kazusa Fukuda

IPC: B25C1/04 ,  B25C1/06

Abstract: An elastic member is disposed between an internal gear of a gear train and a gear housing. A force is applied to the gear train when a lift mechanism is activated. The force is received and absorbed by the elastic member, thereby reducing the amount of force received by the gear housing.

公开(公告)号：US11759928B2

公开(公告)日：2023-09-19

申请号：US17725757

申请日：2022-04-21

Applicant: MAKITA CORPORATION

Inventor： Shun Kuriki ,  Norikazu Baba

IPC: B25C1/04 ,  B25C1/00

CPC classification number: B25C1/047 ,  B25C1/008

Abstract: A driving tool comprises a displacement allowing mechanism that allows a wheel to be displaced in a radial direction of a rotation shaft. The driving tool further comprises a displacement restricting mechanism that restricts the wheel from being displaced in the radial direction of the rotation shaft. When a driver is to start being moved upwards by an engagement of a first engagement portion with an engaged portion by rotation of the wheel, a displacement restriction state of the wheel caused by the displacement restricting mechanism is released, allowing an entirety of the wheel to be displaceable in the radial direction of the rotation shaft due to the displacement allowing mechanism.

公开(公告)号：US11667020B2

公开(公告)日：2023-06-06

申请号：US17386672

申请日：2021-07-28

Applicant: MAKITA CORPORATION

Inventor： Shun Kuriki ,  Yukiyasu Okouchi ,  Yoshitaka Akiba ,  Norikazu Baba

IPC: B25C1/04 ,  B25C1/06

CPC classification number: B25C1/047 ,  B25C1/06

Abstract: In a driving tool, during and/or after a driving operation has been completed, a restriction member is retained in an on-position by a cam. An energizing switch is retained in an on-state by an actuation portion of the restriction member. Because of this configuration, if a trigger is released during and/or after the driving operation has been completed, an electric motor continues to be activated, which causes a driver to return to a standby position.

公开(公告)号：US12251807B2

公开(公告)日：2025-03-18

申请号：US18141718

申请日：2023-05-01

Applicant: MAKITA CORPORATION

Inventor： Norikazu Baba ,  Shun Kuriki ,  Kazusa Fukuda ,  Masaya Nagao

IPC: B25C1/04 ,  B25C1/06

Abstract: A driving tool includes a piston configured to move in a driving direction due to gas pressure, and a driver configured to move integrally with the piston to strike a fastener. The driver includes a plurality of rack teeth formed along a driving direction. The driving tool includes a wheel having a plurality of engaging portions to engage the plurality of rack teeth at its outer circumference. The driver is moved in a counter-driving direction as the wheel rotates. The plurality of engaging portions of the wheel includes at least one advancing/retracting engaging portion configured to move with respect to a shaft member of the wheel. The driver has a tooth groove between adjacent rack teeth of the plurality of rack teeth. One tooth groove is configured to receive the advancing/retracting engaging portion and has a depth deeper than at least one other tooth groove.

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.

公开(公告)号：US11904447B2

公开(公告)日：2024-02-20

申请号：US17946512

申请日：2022-09-16

Applicant: MAKITA CORPORATION

Inventor： Norikazu Baba ,  Shun Kuriki ,  Kiyonobu Yoshikane

IPC: B25C1/04 ,  B25C1/06 ,  B25D9/04

CPC classification number: B25C1/047 ,  B25D9/04 ,  B25C1/06 ,  B25D2250/381

Abstract: A driving tool includes a piston, a driver, and a lift mechanism. The piston moves in a driving direction by a pressure of a gas. The driver extends from the piston and includes a plurality of engaged portions. The lift mechanism moves the driver in a direction opposite to the driving direction. The lift mechanism includes a rotation shaft, a wheel, a plurality of engaging portions, and a supporting member. The wheel rotates integrally with the rotation shaft. Each of the plurality of engaging portions may engage an engaged portion. The supporting member supports the wheel so the wheel is allowed to move between an initial position and an eccentric position in a radial direction of the rotation shaft.