公开(公告)号：US12157218B2

公开(公告)日：2024-12-03

申请号：US18233483

申请日：2023-08-14

Applicant: MAKITA CORPORATION

Inventor： Kihiro Kusumoto ,  Kenji Abe

IPC: B25F5/00 ,  B25F5/02

Abstract: A power tool includes a motor including a stator and a rotor rotatable relative to the stator about a rotation axis, a gear drivable in response to rotation of the rotor, a motor compartment accommodating the motor, a rear cover covering a rear opening in the motor compartment, a gear case accommodating the gear and covering a front opening in the motor compartment, a first screw fastening the rear cover and the motor compartment together, and a second screw fastening the motor compartment and the gear case together, and at a different position from the first screw in a plane orthogonal to the rotation axis.

公开(公告)号：US09855614B2

公开(公告)日：2018-01-02

申请号：US14309323

申请日：2014-06-19

Applicant: MAKITA CORPORATION

Inventor： Toshiyuki Kani ,  Fumihide Sugita ,  Kenji Abe

IPC: B23D49/16 ,  B23D51/02

CPC classification number: B23D49/162 ,  B23D51/02

Abstract: A jigsaw includes a main body having a grasping part configured to be grasped by a user, a blade projecting downwardly from a front part of the main body and configured to reciprocate up and down, and a base coupled to a lower part of the main body and configured to make contact with a workpiece. A rear end of a contact surface that is configured to make contact with the workpiece is located at a position that coincides with or is rearward of the rear end of the grasping part.

公开(公告)号：US09573207B2

公开(公告)日：2017-02-21

申请号：US14256399

申请日：2014-04-18

Applicant: MAKITA CORPORATION

Inventor： Fumihide Sugita ,  Toshiyuki Kani ,  Kenji Abe ,  Kenta Niwa

IPC: B23D49/16 ,  B23D51/16

CPC classification number: B23D49/16 ,  B23D49/162 ,  B23D51/16

Abstract: A jigsaw includes a motor, a rod having a blade attached thereto, a power transmission portion that converts rotation transmitted from the motor to vertical movement of the rod to vertically move the blade, and a counterweight that moves vertically in a direction of the vertical movement of the rod outside a range of the vertical, movement of the rod and the blade. At least a part of the counterweight is disposed so as to cross an extended line of a trajectory of the vertical movement of the rod. The counterweight moves vertically independently of the vertical movement of the rod which is produced by the power transmission portion.

Abstract translation: 拼图包括电动机，具有附接到其上的刀片的杆，将从电动机传递的旋转转换成垂直运动以垂直移动刀片的动力传递部分，以及沿垂直方向垂直移动的配重 的杆在垂直方向的范围内，杆和刀片的运动。 配重的至少一部分被设置成穿过杆的垂直运动的轨迹的延伸线。 该配重与由动力传递部产生的杆的垂直运动垂直地移动。

公开(公告)号：US09475140B2

公开(公告)日：2016-10-25

申请号：US14259901

申请日：2014-04-23

Applicant: MAKITA CORPORATION

Inventor： Sho Kume ,  Kenji Abe

IPC: B23D59/00 ,  B27B9/00 ,  B23D45/16

CPC classification number: B23D59/006 ,  B23D45/16 ,  B23D59/00 ,  B27B9/00

Abstract: A wind shielding portion is provided in a front side of an exhaust port for cooling air from a motor such that it crosses over a lateral width with respect to a cutting direction. The cooling air which is blown to the wind shielding portion is effectively blown through a ventilation portion having a small ventilating resistance force and towards a marking line guide. Even when the cutting device main body is set at an incline, the cooling air is blown to the wind shielding portion, and is effectively blown through the ventilation portion to the marking line guide.

Abstract translation: 风挡屏蔽部分设置在排气口的前侧，用于冷却来自电动机的空气，使得其相对于切割方向跨越横向宽度。 被吹送到挡风部的冷却空气通过具有小的通风阻力的通气部分朝向标记线引导件被有效地吹送。 即使当切割装置主体设置为倾斜时，冷却空气也被吹送到挡风部分，并且有效地通过通风部分吹送到标记线引导件。

公开(公告)号：US09364906B2

公开(公告)日：2016-06-14

申请号：US14155358

申请日：2014-01-15

Applicant: MAKITA CORPORATION

Inventor： Kenji Abe ,  Masayoshi Okumi ,  Hidenori Nagasaka ,  Motohiro Omura ,  Masaaki Fukumoto ,  Kenji Shibata ,  Nobuyasu Furui ,  Masanori Higashi ,  Kiyoshi Aoyama

IPC: H02K7/14 ,  B23D47/12 ,  B24B23/02 ,  B24B47/12 ,  B25F5/02

CPC classification number: B23D47/12 ,  B24B23/02 ,  B24B47/12 ,  B25F5/008 ,  B25F5/02

Abstract: A hand-held power tool includes a motor having a stator and a rotor, the motor being configured to rotate the rotor at a speed of at least 40,000 rpm, an output shaft directly driven by the rotor, a tool accessory shaft configured to support a tool accessory, and a two-stage speed reducing transmission operably connecting the output shaft to the tool accessory shaft. The two-stage speed reducing transmission is configured to drive the tool accessory shaft at a rate less than the rotor speed, for example, at a rate less than or equal to 37.5% of the rotor speed.

Abstract translation: 一种手持电动工具包括具有定子和转子的电动机，所述电动机构造成以至少40,000rpm的转速旋转所述转子，由所述转子直接驱动的输出轴;工具附件轴， 工具附件，以及将输出轴与工具附件轴可操作地连接的两级减速传动装置。 两级减速传动装置构造成以小于转子速度的速度驱动工具附件轴，例如以小于或等于转子速度的37.5％的速率。

公开(公告)号：US11738441B2

公开(公告)日：2023-08-29

申请号：US17144207

申请日：2021-01-08

Applicant: MAKITA CORPORATION

Inventor： Kihiro Kusumoto ,  Kenji Abe

IPC: B25F5/00 ,  B25F5/02

CPC classification number: B25F5/008 ,  B25F5/001 ,  B25F5/02

Abstract: A power tool includes a motor including a stator and a rotor rotatable relative to the stator about a rotation axis, a gear drivable in response to rotation of the rotor, a motor compartment accommodating the motor, a rear cover covering a rear opening in the motor compartment, a gear case accommodating the gear and covering a front opening in the motor compartment, a first screw fastening the rear cover and the motor compartment together, and a second screw fastening the motor compartment and the gear case together, and at a different position from the first screw in a plane orthogonal to the rotation axis.

公开(公告)号：US10974372B2

公开(公告)日：2021-04-13

申请号：US16251425

申请日：2019-01-18

Applicant: MAKITA CORPORATION

Inventor： Haruki Tejima ,  Tomoyuki Kondo ,  Kenji Abe ,  Koji Tsukamoto

IPC: B25B21/02 ,  B25B19/00

Abstract: An impact driver includes a hammer that is rotated by a motor and an anvil configured to be struck by the hammer to rotate the anvil about a rotational axis. A hammer case houses the hammer. Two or more bearings are provided inside the hammer case and support the anvil. To inhibit vibration of the anvil during operation, the bearings may be differing types, such as a regular ball bearing and an angular contact ball bearing, and/or the bearings may have different inner and/or outer diameters. A contact member, such as an O-ring, may be disposed in an insertion hole of the anvil to reduce vibrations that are transmitted to the tool bit.

公开(公告)号：US09776338B2

公开(公告)日：2017-10-03

申请号：US14164128

申请日：2014-01-24

Applicant: MAKITA CORPORATION

Inventor： Kenji Abe ,  Yusuke Hirata ,  Tatsuya Nagahama

IPC: B26B7/00 ,  B27B19/14 ,  B27B9/04 ,  B26D7/06 ,  B26F3/00 ,  B27B5/38 ,  B23Q11/12 ,  H02K9/06 ,  H02K7/106 ,  H02K7/14 ,  B25F5/00

CPC classification number: B27B5/38 ,  B23Q11/126 ,  B25F5/001 ,  B25F5/008 ,  H02K7/106 ,  H02K7/145 ,  H02K9/06 ,  H02K11/0094

Abstract: A power tool, for example, a portable circular saw, includes a fan, a motor configured to rotate the fan, an output part or shaft driven by the motor, a motor housing that houses the motor, a grip housing connected to the motor housing, a trigger associated with the grip housing, and a brake member configured to brake a rotation of the motor, the brake member being mounted inside the grip housing. The brake member may be a resistive element of a rheostatic braking system. The housing and fan are configured such that cooling air is directed to cool the brake member.

公开(公告)号：USD699088S1

公开(公告)日：2014-02-11

申请号：US29465895

申请日：2013-09-03

Applicant: Makita Corporation

Designer： Kenji Abe ,  Shinsuke Okuda