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公开(公告)号：US11607780B2
公开(公告)日：2023-03-21
申请号：US16966795
申请日：2019-02-07
Applicant: MAKITA CORPORATION
Inventor： Hiroki Ikuta , Shogo Tominaga
Abstract: A work tool includes a housing, a spindle, a motor, a power-transmitting mechanism and a restricting member. The power-transmitting mechanism includes a sun member, a ring member, a carrier member and a planetary roller. One of the sun member and the ring member is configured to move together with the spindle in the front-rear direction relative to the other of the sun member and the ring member. The power-transmitting mechanism is configured to transmit power of the motor to the spindle when the sun member and the ring member relatively move toward each other in response to rearward movement of the spindle and the planetary roller gets into frictional contact with the sun member and the ring member. The restricting member is configured to restrict the planetary roller from moving in the front-rear direction relative to the housing.
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公开(公告)号：US20230079761A1
公开(公告)日：2023-03-16
申请号：US17799827
申请日：2020-12-16
Applicant: MAKITA CORPORATION
Inventor： Akira MIZUTANI , Ryosuke OTANI , Fumiyoshi SAITO
Abstract: An electric power tool. The electric power tool may include: a motor; a control device configured to control the motor; a power transmission mechanism connected to the motor; a housing that houses the motor, the control device and the power transmission mechanism; an end tool holder connected to the power transmission mechanism; an accessory configured to be detachably attached to the housing; and a detector configured to detect whether the accessory is attached or not. The detector may include: a link member configured to move with respect to the housing according to the accessory being attached or detached; a magnet fixed in position with respect to one of the link member and the housing; and a magnetic sensor fixed in position with respect to another of the link member and the housing.
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公开(公告)号：US20230075030A1
公开(公告)日：2023-03-09
申请号：US17897624
申请日：2022-08-29
Applicant: MAKITA CORPORATION
Inventor： Yuki KAWAI , Naoya ASAMI
Abstract: A blower in one aspect of the present disclosure includes: a housing including a first discharge port; a motor in the housing; a fan in the housing; an attachment fitting portion; and a motor drive circuit. The attachment fitting portion is configured to detachably attach, to the first discharge port, an attachment including a second discharge port. The motor drive circuit (i) delivers a designated power to the motor and (ii) performs a constant power control that maintains a magnitude of an electric power delivered to the motor at a magnitude of the designated power.
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公开(公告)号：US20230071190A1
公开(公告)日：2023-03-09
申请号：US17899363
申请日：2022-08-30
Applicant: MAKITA CORPORATION
Inventor： Yuki KAWAI , Naoya ASAMI
Abstract: A blower in one aspect of the present disclosure includes: a housing including a suction port and a discharge port; a motor in the housing; a fan in the housing; a motor drive circuit; and a control circuit. The control circuit detects an insufficient airflow from the suction port to the discharge port based on an operation parameter. The operation parameter is associated with an operation of the motor.
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公开(公告)号：US11597068B2
公开(公告)日：2023-03-07
申请号：US17473054
申请日：2021-09-13
Applicant: MAKITA CORPORATION
Inventor： Kiyonobu Yoshikane , Hajime Takeuchi , Yoshiro Tada , Masanori Furusawa , Masao Miwa , Shinji Onoda , Yoshitaka Machida
Abstract: A power tool (100) comprises a motor (110) operably driving a tool bit (119), a tool body (101) housing the motor (110), a handle (109) coupled to the tool body (101), and at least two battery mount parts (160 A, 160B) defined on the handle (109) and/or the tool body (101). Each of the battery mount parts (160 A, 160B) comprises a battery engaging part (161) configured to detachably engage with battery packs (170 A, 170B) by sliding the battery packs (170 A, 170B) relative to the battery engaging part (161) in a direction perpendicular to the longitudinal direction of the tool bit (119). In a state in which at least one of the battery packs (170 A, 170B) is mounted on at least one of the battery mount parts (160 A, 160B), a length of the mounted battery in a driving axis extending direction is shorter than a length of the mounted battery in a cross direction.
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Patent Agency Ranking
公开(公告)号：US20230041828A1
公开(公告)日：2023-02-09
申请号：US17876061
申请日：2022-07-28
Applicant: MAKITA CORPORATION
Inventor： Satoshi TAKAHASHI , Akira SHIMIZU
IPC: A01G3/053
Abstract: A working machine may include: a working part; a prime mover configured to drive the working part; a housing supporting the working part; a handle attached to the housing such that the handle is rotatable about a rotation axis with respect to the housing and configured to be grasped by a user; and an elastic member arranged between the housing and the handle. The housing may comprise a first surface. The handle may include a second surface that faces the first surface in a rotation axis direction with an interval therebetween. The elastic member may be arranged between the first surface and the second surface.
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公开(公告)号：US11575339B2
公开(公告)日：2023-02-07
申请号：US17836021
申请日：2022-06-09
Applicant: MAKITA CORPORATION
Inventor： Junichi Katayama , Hitoshi Suzuki
Abstract: One aspect of the present disclosure is a power-supply apparatus to supply an electric power to an electric working machine including a trigger switch, a motor, and a tool. The power-supply apparatus includes a connection detector, a trigger detector, and a signal outputter. In response to (i) the connection detector detecting connection of the electric working machine to the power-supply apparatus, and also to (ii) the trigger detector detecting an ON state of the trigger switch, the signal outputter outputs, to the electric working machine, a discharge prohibition signal prohibiting supply of the electric power to the motor, until an OFF state of the trigger switch is detected once by the trigger detector.
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148.发明授权公开(公告)号：US11571099B2
公开(公告)日：2023-02-07
申请号：US17130964
申请日：2020-12-22
Applicant: MAKITA CORPORATION
Inventor： Hitoshi Suzuki , Yuki Kawai , Itsuku Kato , Yasutaka Hotta
Abstract: An interlocking adapter in one aspect of the present disclosure includes a current path, an electric load, a switch, and a controller. The controller turns on and off the switch in synchronization with a change of an alternating-current voltage received from an electric outlet of an electric apparatus in response to reception of an interlocking command signal from a working machine so as to supply a load current from the electric outlet to the electric load. The controller turns on and off the switch at a specified ratio of a time every ½ cycle of the alternating-current voltage.
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公开(公告)号：US20230036348A1
公开(公告)日：2023-02-02
申请号：US17811124
申请日：2022-07-07
Applicant: MAKITA CORPORATION
Inventor： Ding ZHAO
IPC: B25B21/02
Abstract: A power tool includes: a motor having a rotor, which rotates about a motor rotational axis extending in a front-rear direction; an output part, which is disposed more forward than the motor and is rotated in response to rotation of the rotor; a housing including: a motor-housing part, which houses the motor; a grip part, which extends downward from the motor-housing part; a battery-holding part, which is connected to a lower-end portion of the grip part; a control circuit board, which is housed in the housing; and an operation-and-display part, which is disposed at a rear portion of the housing and is electrically connected to the control circuit board.
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公开(公告)号：US11565396B2
公开(公告)日：2023-01-31
申请号：US16981648
申请日：2019-03-08
Applicant: MAKITA CORPORATION
Inventor： Kiyonobu Yoshikane , Shuchun Wang
Abstract: A coupling member for an electric power tool is provided. The coupling member can keep a hanging member being held, even when a holding portion of the tool for holding the hanging member breaks. A coupling member for an electric power tool is configured to hook a hanging member to an electric power tool main body and can fasten the electric power tool main body therein, when one of its parts opens or closes. Further, this coupling member can be attached to the electric power tool main body with the electric power tool main body fastened therein or removed therefrom. Further, the hanging member can be hooked to the coupling member.
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