公开(公告)号：US11833640B2

公开(公告)日：2023-12-05

申请号：US17955140

申请日：2022-09-28

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami ,  Hideharu Muto ,  Ryosuke Otani

IPC: B24B47/00 ,  B24B47/26 ,  B24B23/02 ,  B24B47/12 ,  B25F5/00

CPC classification number: B24B47/26 ,  B24B23/02 ,  B24B47/12 ,  B25F5/008

Abstract: A grinder includes a brake mechanism, a switch lever, and a slide bar. In the grinder, an interlocking mechanism configured to interlock the brake mechanism with the switch lever includes a link member that is interposed between the switch lever and the slide bar, that moves the slide bar to the forward position at the push-in position of the switch lever, and that moves the slide bar to the retraction position at the initial position of the switch lever.

公开(公告)号：US11744419B2

公开(公告)日：2023-09-05

申请号：US17330907

申请日：2021-05-26

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami

IPC: A47L9/00 ,  A47L9/28 ,  A47L9/22 ,  A47L5/24

CPC classification number: A47L9/0081 ,  A47L5/24 ,  A47L9/22 ,  A47L9/2842

Abstract: A cleaner reduces noise. The cleaner includes a motor assembly including a motor and a fan rotatable about a rotation axis with a rotational force generated by the motor, a cover surrounding the motor assembly, a guide that guides air from the fan at least partially to an outer surface of the cover, and a rib assembly that guides the air guided by the guide at least partially in a circumferential direction about the rotation axis along the outer surface of the cover.

公开(公告)号：US11484986B2

公开(公告)日：2022-11-01

申请号：US16468508

申请日：2017-11-20

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami ,  Hideharu Muto ,  Ryosuke Otani

IPC: B24B47/00 ,  B24B47/26 ,  B24B23/02 ,  B24B47/12 ,  B25F5/00

Abstract: A grinder includes a brake mechanism, a switch lever, and a slide bar. In the grinder, an interlocking mechanism configured to interlock the brake mechanism with the switch lever includes a link member that is interposed between the switch lever and the slide bar, that moves the slide bar to the forward position at the push-in position of the switch lever, and that moves the slide bar to the retraction position at the initial position of the switch lever.

公开(公告)号：US10556319B2

公开(公告)日：2020-02-11

申请号：US15258098

申请日：2016-09-07

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami ,  Hideharu Muto ,  Naoki Soeda ,  Ryosuke Otani

IPC: B24B55/05 ,  B24B23/02

Abstract: A grinder includes a motor, a housing, a spindle and a cover. The spindle protrudes downward from the housing, is driven by the motor, and thereby rotates. The cover at least partially covers a tool accessory mounted on the spindle. The cover includes a first cover part and a second cover part. The first cover part is fixed to the housing and at least partially covers the tool accessory from above. The second cover part is held such that it is capable of moving relative to the first cover part. The grinder is configured such that the area of the tool accessory covered by the cover changes in accordance with the relative movement.

公开(公告)号：USD935710S1

公开(公告)日：2021-11-09

申请号：US29696138

申请日：2019-06-25

Applicant: MAKITA CORPORATION

Designer： Kento Nakamura ,  Junichi Iwakami

公开(公告)号：US11045938B2

公开(公告)日：2021-06-29

申请号：US15418112

申请日：2017-01-27

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami ,  Shin Nakamura ,  Akira Mizutani ,  Takafumi Kotsuji

IPC: B25F5/02 ,  B25F5/00 ,  B24B23/04 ,  B24B27/08 ,  B27B19/00

Abstract: Several means 71, 72, 73, 74, and 75 are provided for restricting a relative displacement in a separating direction of half-split housings 50L, 50R. At one or more of several screw-connection parts 60 of the left and right half-split housings 50L, 50R, a press-fitting protrusion 71a is provided in an insertion hole 62a of a boss-receiving part 62 into which a screw-boss part 61 is inserted. By press-fitting the screw-boss part 61 to the boss-receiving part 62, a separation resistance may be introduced between the left and right half-split housings 50L, 50R.

公开(公告)号：US11653802B2

公开(公告)日：2023-05-23

申请号：US17408743

申请日：2021-08-23

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami ,  Yuta Kawai

IPC: A47L9/00 ,  A47L5/24 ,  F04D29/66 ,  A47L9/02 ,  A47L5/22

CPC classification number: A47L9/0081 ,  A47L5/22 ,  A47L5/24 ,  A47L9/02 ,  F04D29/66 ,  F04D29/661 ,  F04D29/663 ,  F04D29/668

Abstract: A cleaner reduces noise. The cleaner includes a motor, a fan including a number Z of blades and rotatable at a rotational speed N, indicating revolutions per minute, about a rotation axis by the motor, a cover having an inlet located frontward from the fan, and a number V of ribs located in the inlet. The ribs extend in a radial direction from the rotation axis and are arranged in a circumferential direction about the rotation axis. The fan is rotatable to produce noise having a frequency fNZ of 20,000 Hz or higher, and fNZ=(m−k×V)×N/60 and m=n×Z+k×V, where n is an order, m is an integer, and k is an integer.

公开(公告)号：US11647884B2

公开(公告)日：2023-05-16

申请号：US16512564

申请日：2019-07-16

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami

IPC: A47L9/28 ,  A47L5/24 ,  A47L9/32

CPC classification number: A47L9/2863 ,  A47L5/24 ,  A47L9/322

Abstract: A cleaner includes a main body, a handle, a first switch member, and a second switch member. The main body generates a suction force to suck in dust with air by a motor. The handle is to be held by a user. The first switch member is disposed movably on the handle and switches between supplying and not supplying power to the motor by being moved. The second switch member is disposed movably on the handle and, by being moved, moves the first switch member so as to switch between supplying and not supplying power to the motor.

公开(公告)号：USD985866S1

公开(公告)日：2023-05-09

申请号：US29796084

申请日：2021-06-22

Applicant: MAKITA CORPORATION

Designer： Yota Kumagai ,  Junichi Iwakami

Abstract: FIG. 1 is a front perspective view of an electric vacuum cleaner body showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a right side elevational view thereof; and,
FIG. 9 is a front perspective view of the electric vacuum cleaner body in accordance with our new design illustrating a state in which environmental structures (a battery and a nozzle) are attached to the electric vacuum cleaner body.
The broken lines in the drawings illustrate the environmental structures or portions of the electric vacuum cleaner body which form no part of the claimed design.

公开(公告)号：US11191405B2

公开(公告)日：2021-12-07

申请号：US16782217

申请日：2020-02-05

Applicant: MAKITA CORPORATION

Inventor： Junichi Iwakami ,  Takayuki Tahara

IPC: A47L9/22 ,  A47L5/24 ,  A47L9/28

Abstract: A vacuum cleaner (1; 1B) includes a housing (2; 100) that houses a fan (7) and a motor (8), which generates power that rotates the fan (7); one or more air-exhaust ports (10), which is provided in at least a portion of the housing (2; 100); and a sound-absorbing member (33) having a through hole (33). The sound-absorbing member (33) is disposed in an interior space of the housing (2; 100) so as to face the air-exhaust port(s) (10).