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公开(公告)号：US11975423B2
公开(公告)日：2024-05-07
申请号：US17439428
申请日：2020-04-10
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta , Ryo Imuta
Abstract: A screw-tightening tool includes a housing, a spindle, a motor, and a power-transmitting mechanism including a sun member, a ring member, a carrier member and a planetary roller. The power-transmitting mechanism is configured such that, when the ring member moves rearward to be closer to the sun member in response to rearward movement of the spindle, the planetary roller transmits power of the motor to the spindle owing to frictional force between the planetary roller and each of a first tapered surface of the sun member and a second tapered surface of the ring member. The sun member is configured to move from a first position to a second position, which is forward of the first position, when the frictional force reaches a threshold, and to move from the second position to the first position when the frictional force falls below the threshold.
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公开(公告)号：US10569393B2
公开(公告)日：2020-02-25
申请号：US15891696
申请日：2018-02-08
Applicant: MAKITA CORPORATION
Inventor： Yosuke Naoi , Takashi Nakane , Hiroki Ikuta
Abstract: An attachment includes a planetary reducer, a reaction force receiving member, and a universal joint. The planetary reducer has a first output shaft and a second output shaft connectable to a socket. The reaction force receiving member is connected to the first output shaft and has an arm part for contact with an external contact object. The universal joint has an input-side end part connectable to a final output shaft of a fastening tool and an output-side end part connected to the planetary reducer. The reaction force receiving member is configured to rotate integrally with the first output shaft in a direction opposite to the second output shaft by a reaction force caused by rotation of the socket. The universal joint is configured to transmit the torque inputted from the final output shaft via the input-side end part, to the planetary reducer via the output-side end part.
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公开(公告)号：US10315300B2
公开(公告)日：2019-06-11
申请号：US15148339
申请日：2016-05-06
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta , Ken Yamauchi , Takamasa Hanai , Masao Miwa , Tomohiro Ukai , Shusaku Wakatsuki , Akihiro Ito
Abstract: A dust collection device, that collects dust particles generated by an impact tool, has a feature that enables the attachment of the device to the impact tool, which is not provided with an attachment section for the device. The dust collection device has a tool body and an auxiliary handle, attached removably to the tool body, and is attached to an electric hammer that, in the lengthwise direction, linearly operates a tool bit mounted to the tip region of the tool body, and collects dust generated by the electric hammer. The dust collection device has: a dust collection unit that has a dust intake port at the tip; a dust collection hose, connected to the dust collection unit, for transferring dust to the downstream side; and a hose-holding unit that holds the dust collection hose. The hose-holding unit can be attached to and removed from the auxiliary handle.
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公开(公告)号：US10046452B2
公开(公告)日：2018-08-14
申请号：US14835228
申请日：2015-08-25
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta
IPC: B25F5/00
Abstract: It is an object to provide a novel technique for releasing an intervening member of a driving member. A representative screwdriver is provided with a motor and a driving mechanism. The driving mechanism has a spindle, a lock sleeve, rollers, a driving gear, a retainer and a spring receiver. When driven with the rollers held between the lock sleeve and the driving gear, the spindle is rotated in a normal direction. The lock sleeve has an inclined part and the retainer has an inclined part. The lock sleeve and the retainer move with respect to each other in the axial direction and the circumferential direction by sliding contact between the inclined parts. This relative movement in the circumferential direction is utilized to release the holding of the rollers.
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公开(公告)号：US09358664B2
公开(公告)日：2016-06-07
申请号：US13710772
申请日：2012-12-11
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta
CPC classification number: B24B55/052 , B24B23/028
Abstract: A grinder includes a body having an annular portion, a wheel cover which is attachable to the annular portion, and a wheel cover holding member which holds the wheel cover. The wheel cover has a cylindrical portion which is attachable to the annular portion. The wheel cover holding member has a slide member and a pressing portion which moves the slide member. The pressing portion switches a state between an engagement state in which the slide member is engaged with the cylindrical portion and a disengagement state in which the slide member is disengaged with the cylindrical portion by moving the slide member. The pressing member moves on a second line which is parallelly offset from a first line passing the center of the annular portion in a predetermined direction.
Abstract translation: 研磨机包括具有环形部分的主体，可附接到环形部分的轮盖，以及保持轮罩的轮盖保持部件。 轮罩具有可附接到环形部分的圆柱形部分。 轮盖保持构件具有滑动构件和使滑动构件移动的按压部。 按压部分通过移动滑动构件而在滑动构件与圆柱形部分接合的接合状态和滑动构件与圆柱形部分脱离的分离状态之间切换状态。 按压构件在与通过环形部分的中心的第一线沿预定方向平行地偏移的第二线上移动。
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Patent Agency Ranking
公开(公告)号：US11590626B2
公开(公告)日：2023-02-28
申请号：US16624066
申请日：2018-06-12
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta
IPC: B24B23/02
Abstract: A work tool includes a motor, a tool-mounting part, a rotary shaft, a rotating member, a switch, an operation member and a lock mechanism. The rotating member is held rotatably around a rotation axis of the rotary shaft and configured to transmit torque to and from the rotary shaft while being allowed to rotate relative to the rotary shaft. The rotating member is configured to rotate together with the rotary shaft by action of transmitting the torque when the operation member is moved from the OFF position to the ON position and the lock mechanism allows the rotating member to rotate, and configured to apply a braking force to the rotary shaft by action of transmitting the torque when the operation member is moved from the ON position to the OFF position and the lock mechanism non-rotatably locks the rotating member.
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公开(公告)号：US11504764B2
公开(公告)日：2022-11-22
申请号：US17342032
申请日：2021-06-08
Applicant: MAKITA CORPORATION
Inventor： Toshihito Yabunaka , Hiroki Ikuta , Koichi Yakabe , Takao Kuroyanagi
Abstract: A fastening tool includes a motor, a fastening mechanism, a tool body and a main handle. The motor includes a motor body and a motor shaft. The fastening mechanism is configured to fasten workpieces via a fastener by pulling a pin of the fastener rearward relative to a tubular part of the fastener along a driving axis defining a front-rear direction of the fastening tool. The tool body houses the motor and the fastening mechanism. The main handle extends in a direction crossing the driving axis and connected to the tool body such that the main handle and the tool body together form an annular part. A rotational axis of the motor shaft extends parallel to the driving axis. A portion of the main handle is located in a rear space extending behind the motor body.
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公开(公告)号：US11325180B2
公开(公告)日：2022-05-10
申请号：US17343229
申请日：2021-06-09
Applicant: MAKITA CORPORATION
Inventor： Toshihito Yabunaka , Hiroki Ikuta
Abstract: A fastening tool includes a tool body, an anvil, a pin-gripping part, a motor, a rotation member, a moving member, a gear part and a receiving member. The rotation member is configured to be rotationally driven around the driving axis. The moving member is coupled to the pin-gripping part and engaged with the rotation member. The moving member is configured to move along a driving axis defining a front-rear direction, in response to rotational driving of the rotation member. The gear part is shaped like a flange projecting radially outward from an outer peripheral surface of the rotation member, and has gear teeth on an outer circumference thereof. The receiving member is disposed rearward of the gear part and configured to receive, via a rear surface of the gear part, a rearward reaction force applied to the rotation member when the pin-gripping part moves frontward.
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公开(公告)号：US11065674B2
公开(公告)日：2021-07-20
申请号：US16465130
申请日：2017-11-24
Applicant: MAKITA CORPORATION
Inventor： Yuki Kawai , Michisada Yabuguchi , Hiroki Ikuta , Toshihito Yabunaka
Abstract: A fastening tool includes a fastener-abutment part, a pin-gripping part, a motor, a driving mechanism, an input-accepting part and a motor-control part. The fastener-abutment part is configured to abut on a cylindrical part of a fastener. The pin-gripping part is configured to grip a portion of a pin of the fastener. The driving mechanism is configured to be driven by power of the motor to move the pin-gripping part rearward along a driving axis relative to the fastener-abutment part, thereby fastening a workpiece via the fastener. The input-accepting part is configured to accept setting information for a control condition of the motor inputted via an operation part configured to be externally operated by a user. The motor-control part is configured to control operation of the driving mechanism by controlling driving of the motor according to the control condition based on the setting information accepted by the input-accepting part.
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公开(公告)号：US10994325B2
公开(公告)日：2021-05-04
申请号：US16472924
申请日：2017-12-19
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta , Toshihito Yabunaka , Takao Kuroyanagi
Abstract: A fastening tool configured to fasten a workpiece via a multi-piece swage type fastener including a pin and a collar includes an anvil, a pin-gripping part, a driving mechanism, an electric motor, a control part and a housing. The driving mechanism is configured to move the pin-gripping part relative to the anvil in a first direction along an axis so as to cause the anvil to press the collar engaged with a shaft part of the pin in a second direction and in a radially inward direction. An operation mode of the driving mechanism can be selectively switched between a plurality of operation modes including a first mode, in which a process of fastening the workpiece is completed based on a state of the fastener, and a second mode, in which the process of fastening the workpiece is completed based on a driving state of the motor.
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