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公开(公告)号：US20170326660A1
公开(公告)日：2017-11-16
申请号：US15486575
申请日：2017-04-13
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
CPC classification number: B23D59/002 , B23D45/16 , B27B9/04
Abstract: A pressing member is rotatably supported by a fixing screw shaft via a ball bearing. The pressing member is made of synthetic resin and is larger in diameter compared to that of the fixing screw shaft. A connection bar is pressed by the pressing member by fastening the fixing screw shaft, and the position of the connection bar is thereby fixed. Because the pressing member has a large diameter, a dent is not generated on the connection bar. Furthermore, because the pressing member is not rotated in the fixed position, the position of the connection bar is not offset, enhancing the ability of fixing the connection bar with precise adjustment.
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公开(公告)号：US20210016428A1
公开(公告)日：2021-01-21
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：US20200215678A1
公开(公告)日：2020-07-09
申请号：US16705660
申请日：2019-12-06
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
Abstract: The durability of a reduction mechanism is improved. An impact wrench includes a brushless motor, a sun gear rotatable by the brushless motor, a planetary gear meshing with the sun gear, an internal gear meshing with the planetary gear and having a first recess on an outer circumference, a gear case holding the internal gear and having a second recess on an inner circumference, a spindle holding the planetary gear, and a pin disposed in the first recess and in the second recess.
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公开(公告)号：US20180236574A1
公开(公告)日：2018-08-23
申请号：US15899398
申请日：2018-02-20
Applicant: MAKITA CORPORATION
Inventor： Sho KUME , Hirotomo INAYOSHI , Tatsuo NAKASHIMA , Tsutomu NAITO , Kenji NOSE
CPC classification number: B23D59/006 , B23Q11/0046 , B23Q11/0071
Abstract: A dust collection nozzle 60 extends from the front of a fixing cover 14 parallel to a base 2 below an upper end of an electric motor 25. Heavy and large cutting dust can be immediately collected from an area relatively close to a cutting position C of a portable cutting device 1 cutting a workpiece W immediately after dust is generated due to the cutting, which can in turn improve dust collection efficiency of a dust collection device to which the dust collection nozzle 60 is attached.
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公开(公告)号：US20200217412A1
公开(公告)日：2020-07-09
申请号：US16704119
申请日：2019-12-05
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
Abstract: A spindle is radially and axially compact. An impact wrench includes a motor, a sun gear rotatable by the motor, a planetary gear meshing with the sun gear, an internal gear meshing with the planetary gear, a gear case holding the internal gear, a spindle holding the planetary gear, and a first bearing located between the gear case and the spindle, and supporting the spindle on an outer circumference and the gear case on an inner circumference.
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Patent Agency Ranking
公开(公告)号：US20190143555A1
公开(公告)日：2019-05-16
申请号：US16176957
申请日：2018-10-31
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
Abstract: A controller 50 is disposed to the front relative to a rotation shaft 11d of an electric motor 11 above a base 2, so as to be tilted in the up-to-down direction as it extends frontward.
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公开(公告)号：US20150266201A1
公开(公告)日：2015-09-24
申请号：US14657470
申请日：2015-03-13
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA
Abstract: A portable cutting device may include a device body, a base and a hook. The device body may include a rotary cutter, a motor, a reduction mechanism coupled to the motor for rotating the rotary cutter, an accommodation portion for accommodating the reduction mechanism, and a fixed cover for covering the rotary cutter. The reduction mechanism may include an output shaft. The fixed cover may include a wall portion extending in a direction that is not parallel to the axial direction of the output shaft. The base may have an upper surface and a lower surface and may support the device body on an upper side of the upper surface. The hook may be attached to the wall portion of the fixed cover.
Abstract translation: 便携式切割装置可以包括装置主体，底座和钩子。 装置主体可以包括旋转切割器，马达，联接到马达的用于旋转旋转切割器的减速机构，用于容纳减速机构的容纳部分和用于覆盖旋转切割器的固定盖。 减速机构可以包括输出轴。 固定盖可以包括在不平行于输出轴的轴向的方向上延伸的壁部。 基座可以具有上表面和下表面，并且可以在上表面的上侧支撑装置主体。 钩可以附接到固定盖的壁部。
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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：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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公开(公告)号：US20210001418A1
公开(公告)日：2021-01-07
申请号：US16969445
申请日：2019-02-19
Applicant: MAKITA CORPORATION
Inventor： Tatsuo NAKASHIMA , Kenji NOSE , Takuji KIMURA
Abstract: A suspending member, such as a tether strap or the like, may by connected to improve convenience for an operator. The function of the suspending member shall be reliably performed by clearly notifying the user when the connecting part for connecting the suspending member is damaged. A ring-shaped notification member is incorporated in a connecting part for connecting the suspending member. The suspending member is inserted into both of a connecting hole in a connecting part and a notification member so as to be connected. When an end of a handle portion breaks due to long-term use, the notification member is pulled out such that the damage of the connecting part is notified.
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