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公开(公告)号：US11642772B2
公开(公告)日：2023-05-09
申请号：US16930639
申请日：2020-07-16
Applicant: MAKITA CORPORATION
Inventor： Tatsuo Nakashima
Abstract: A power tool (1), such as an impact wrench (1), includes: a brushless motor (8); a motor housing (7), which houses the brushless motor (8); an anvil (4), which is rotationally driven by the brushless motor (8) and disposed forward of the brushless motor (8); a handle (3), which is disposed downward of the motor housing (7); a battery-mount part (5), which is disposed downward of the handle (3); a battery pack (6), which is mounted on the battery-mount part (5) by being slid relative to the battery-holding housing (5); and a controller (70) for controlling the brushless motor (8). A switch panel (73) having at least one manipulatable button (73c) and at least one display part is provided downward of the handle (3) and is tilted such that the switch panel (73) is higher in the front.
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公开(公告)号：US20230137143A1
公开(公告)日：2023-05-04
申请号：US17969219
申请日：2022-10-19
Applicant: MAKITA CORPORATION
Inventor： Hideaki TAKANO , Hirofumi MIYAZATO
IPC: A47L9/00 , G10K11/178
Abstract: A work machine includes a housing. The housing at least partly houses a machine. The housing has an opening. The work machine includes a path leading into the housing from the opening. The work machine includes a controller and a speaker. The controller is configured to cause a speaker to output a control sound for reducing operating noise. The operating noise is generated in the housing by motion of the machine and propagates in the path from a source of the operating noise to the opening. The speaker is arranged so that the control sound propagates in the path with its wavefront parallel to a wavefront of the operating noise that propagates in the path.
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公开(公告)号：US20230121902A1
公开(公告)日：2023-04-20
申请号：US17938053
申请日：2022-10-05
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
Abstract: An impact tool (1) includes: a motor (10); an impact mechanism (15), which is rotatable about an output rotational axis (BX) and is driven by the motor; an anvil (16) having an anvil shaft (113) disposed forward of the impact mechanism; and at least one anvil projection (114) protruding radially outward from a rear-end portion of the anvil shaft and configured to be impacted by the impact mechanism in a rotational direction; a hammer case (6) housing the impact mechanism; a main-body housing (2) disposed rearward of, and fixed to, the hammer case; a grip housing (3) having at least a portion disposed rearward of the main-body housing, the grip housing being coupled to the main-body housing so as to be movable relative to the main-body housing; and at least one vibration-isolating member (138, 139) disposed between the main-body housing and the grip housing.
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公开(公告)号：US20230121653A1
公开(公告)日：2023-04-20
申请号：US17956080
申请日：2022-09-29
Applicant: MAKITA CORPORATION
Inventor： Hideaki TAKANO
IPC: A47L9/00 , G10K11/178
Abstract: A work machine includes microphones inside the housing. The microphones are configured to collect sound inside the housing, and output sound signals that are electrical signals corresponding to the collected sound. The sound includes an operating noise generated inside the housing due to motion of a machine. The microphones are arranged at different locations inside the housing. The work machine is configured to execute a process related to the operating noise based on the sound signals from the microphones.
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公开(公告)号：US20230117577A1
公开(公告)日：2023-04-20
申请号：US17938054
申请日：2022-10-05
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
Abstract: An impact tool (1) includes: a motor (10); an impact mechanism (115), which is rotatable about an output rotational axis (BX) and is operably driven by the motor; an anvil (16) having an anvil shaft (113) disposed forward of the impact mechanism, and a radially-outward-protruding anvil projection (114) that is impacted in a rotational direction by the impact mechanism; a hammer case (6) housing the impact mechanism; an anvil bearing (115) held by the hammer case and surrounding the anvil shaft; a first groove (121) formed on an outer-circumferential surface of the anvil shaft so as to encircle the output rotational axis; a second groove (122) formed on an inner-circumferential surface of the anvil bearing so as to encircle the output rotational axis; and a restraining member (123) having a first portion (124) disposed in the first groove, and a second portion (125) disposed in the second groove.
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Patent Agency Ranking
公开(公告)号：US11628553B2
公开(公告)日：2023-04-18
申请号：US17190115
申请日：2021-03-02
Applicant: MAKITA CORPORATION
Inventor： Yoshihiro Ito , Tomohiko Imae , Jun Ueda
Abstract: A power tool including a rear cover simplifies assembly. A driver drill includes a motor including a stator and a rotor rotatable relative to the stator, a motor housing accommodating the motor, being cylindrical, and including a left housing and a right housing being laterally separable, a grip connected to a lower portion of the motor housing, an output unit in front of the motor and driven by the motor, and a rear cover supporting a rear portion of the rotor and closing a rear portion of the motor housing. The rear cover is held and fastened between the left housing and the right housing.
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公开(公告)号：US20230114444A1
公开(公告)日：2023-04-13
申请号：US17914219
申请日：2021-04-15
Applicant: MAKITA CORPORATION
Inventor： Shinya MIZUTANI , Junichi MURAKAMI
Abstract: A charger may include: a casing including an air inlet and an air outlet; an inner wall extending from an inner surface of the casing and defining an accommodating space between the inner surface of the casing and the inner wall; and a centrifugal fan including an air feed port and disposed in the accommodating space. The air outlet may be disposed to face the air feed port. The air inlet may be disposed closer to the centrifugal fan than the inner wall is. In a direction of a rotation axis of the centrifugal fan, a width between the inner wall and the centrifugal fan may be less than or equal to 150% of a width of the centrifugal fan.
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公开(公告)号：US20230111417A1
公开(公告)日：2023-04-13
申请号：US17942675
申请日：2022-09-12
Applicant: MAKITA CORPORATION
Inventor： Isao YASUDA
IPC: H01M50/244 , H01M50/247 , H01M50/256 , H01M50/264 , H01M50/342
Abstract: A power supply device may include a body case, a first device-side engaging part disposed on the body case, a first output part disposed on the body case; and a device-side connector configured to be connected with a battery-side connector of a first battery unit. The body case may include a bottom surface, and an upper surface configured to allow the first battery unit to be placed thereon. The first device-side engaging part may be configured to be engaged with a first engaged part of the first battery unit. The first output part may be configured to output power supplied from the first battery unit to a first external apparatus different from the first battery unit.
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公开(公告)号：US20230101418A1
公开(公告)日：2023-03-30
申请号：US17954996
申请日：2022-09-28
Applicant: Makita Corporation
Inventor： Kohei OISHI , Tomoyuki Kutsuna
Abstract: A working machine may include: a conversion mechanism configured to convert motion of a prime mover; a first blade connected to the conversion mechanism; a second blade overlapping with the first blade in an up-down direction and facing a first facing surface of the first blade; a sealing member engaged with a first non-facing surface of the first blade that is opposite to the first facing surface, wherein the sealing member includes a first sealing surface facing the first non-facing surface in the up-down direction; and a cover member facing a second sealing surface of the sealing member that is opposite to the first sealing surface of the sealing member. The sealing member may be disposed forward of the conversion mechanism and configured to suppress the object cut with the first blade and the second blade from moving toward the conversion mechanism between the first blade and the cover member.
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公开(公告)号：US20230088100A1
公开(公告)日：2023-03-23
申请号：US17881107
申请日：2022-08-04
Applicant: MAKITA CORPORATION
Inventor： Masaki MURAKAMI
IPC: H01M50/264 , H01M50/256 , H01M50/247
Abstract: A strap is connectable to a battery pack without any specific portion for connection to the strap. A battery holder connects a strap to a battery pack detachably attachable to a tool body of a power tool. The battery holder includes a belt member that is detachably wound around an overall circumference of the battery pack, and a strap coupler to which the strap is detachably connectable.
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