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公开(公告)号：US20220097219A1
公开(公告)日：2022-03-31
申请号：US17386672
申请日：2021-07-28
Applicant: MAKITA CORPORATION
Inventor： Shun KURIKI , Yukiyasu OKOUCHI , Yoshitaka AKIBA , Norikazu BABA
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.
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公开(公告)号：US20230364763A1
公开(公告)日：2023-11-16
申请号：US18304410
申请日：2023-04-21
Applicant: MAKITA CORPORATION
Inventor： Masaya NAGAO , Norikazu BABA , Shun KURIKI , Kazusa FUKUDA
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.
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公开(公告)号：US20240300081A1
公开(公告)日：2024-09-12
申请号：US18406313
申请日：2024-01-08
Applicant: MAKITA CORPORATION
Inventor： Norikazu BABA , Shun KURIKI , Kiyonobu YOSHIKANE , Toshiya MURAKAMI
IPC: B25C1/18
Abstract: A lock member is slidably provided in a pusher that pushes driven members in a feed direction. An engaging portion of the lock member engages a locking portion of a contact arm to restrict an ON operation of the contact arm. The lock member is relatively retracted against a lock biasing member when the engaging portion is pressed against the contact arm.
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公开(公告)号：US20230364762A1
公开(公告)日：2023-11-16
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
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.
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公开(公告)号：US20230125450A1
公开(公告)日：2023-04-27
申请号：US17953420
申请日：2022-09-27
Applicant: MAKITA CORPORATION
Inventor： Shun KURIKI , Masaya NAGAO , Kiyonobu YOSHIKANE , Toshiro HIRAYAMA
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.
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Patent Agency Ranking
公开(公告)号：US20240051103A1
公开(公告)日：2024-02-15
申请号：US18220361
申请日：2023-07-11
Applicant: MAKITA CORPORATION
Inventor： Shun KURIKI , Kiyonobu YOSHIKANE , Masaya NAGAO
IPC: B25C1/04
Abstract: A driving tool for improving shock absorbability and durability of a tubular damper, the driving tool comprising a cylinder and a piston that moves inside the cylinder owing to a gas pressure. The driving tool further comprises a driver main body to drive a driving member by moving integrally with the piston, and a lift mechanism having a wheel for the driver main body to return to original position. The driver main body is arranged such that a width center line of the driver main body is offset in a direction away from the lift mechanism with respect to a width center line of the piston.
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公开(公告)号：US20220371169A1
公开(公告)日：2022-11-24
申请号：US17725757
申请日：2022-04-21
Applicant: MAKITA CORPORATION
Inventor： Shun KURIKI , Norikazu BABA
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.
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公开(公告)号：US20240300079A1
公开(公告)日：2024-09-12
申请号：US18593090
申请日：2024-03-01
Applicant: MAKITA CORPORATION
Inventor： Kiyonobu YOSHIKANE , Shun KURIKI , Makito TERAMOTO
Abstract: A driving tool includes a driver moving along a driving passage and a lift mechanism for moving the driver. The driving tool includes a pusher and an idling strike prevention mechanism interlocking with a position of the pusher. The pusher pushes a driving member from a side opposite to a first end surface of a tool main body such that the driving member contacts a tip end of the driver at a standby position. When the driver moves from the standby position to a top dead center, the pusher supplies the driving member to the driving passage. After that, the driver moves downward to a driving position to drive the driving member. When no driving member is left, the idling strike prevention mechanism restricts activation of the driving tool in interlocking with the pusher such that the pusher moves to an activation restriction on a side of the driving passage.
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公开(公告)号：US20230364761A1
公开(公告)日：2023-11-16
申请号：US18122795
申请日：2023-03-17
Applicant: MAKITA CORPORATION
Inventor： Norikazu BABA , Shun KURIKI , Kazusa FUKUDA , Masaya NAGAO
IPC: B25C1/04
CPC classification number: B25C1/047
Abstract: A preceding engaging portion preceding a last engaging portion has a smaller diameter or is positioned further inward than the last engaging portion. Because of this configuration, an engagement of the preceding engaging portion with respect to a last engaged portion becomes more easily disengageable in comparison to the last engaging portions. When the preceding engaging portion disengages from the last engaged portion, the driver moves downward to a standby position. Accordingly, an engagement of the engaging portions with the engaged portions can be properly corrected, such that the last engaging portion engages the last engaged portion at the standby position.
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公开(公告)号：US20230126083A1
公开(公告)日：2023-04-27
申请号：US17946512
申请日：2022-09-16
Applicant: MAKITA CORPORATION
Inventor： Norikazu BABA , Shun KURIKI , Kiyonobu YOSHIKANE
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.
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