公开(公告)号：US20190021243A1

公开(公告)日：2019-01-24

申请号：US16014598

申请日：2018-06-21

Applicant: MAKITA CORPORATION

Inventor： Shinsuke NAKA ,  Ryoji ZAMA

IPC: A01G20/47

Abstract: A power blower includes a power blower main body and a blower tube member. The main body takes in air through an air intake portion by rotation of a blower fan rotated by a motor and discharges the air from an air discharge portion. The blower tube member has an opening on a base end side through which air discharged from the air discharge portion of the main body flows in, and an opening on a tip end side from which the air which has flowed in, is blown out. When a plane perpendicular to an axis of the blower tube member is in contact with the opening at the tip end side of the blower tube member, blown-air passages are formed on opposite sides of contact portions of the opening at the tip end side of the blower tube member and the plane.

公开(公告)号：US20230340965A1

公开(公告)日：2023-10-26

申请号：US18300063

申请日：2023-04-13

Applicant: Makita Corporation

Inventor： Shinsuke NAKA ,  Ryoji ZAMA

IPC: F04D29/58 ,  F04D25/06 ,  F04D19/00 ,  F04D29/54

CPC classification number: F04D29/584 ,  F04D25/06 ,  F04D19/002 ,  F04D29/541

Abstract: A blower may include an airflow pipe disposed between an inlet and an outlet, an axial flow fan including a hub and a plurality of blades, a drive shaft, an electric motor, a motor housing, a diffuser cone, a first vent defined on the diffuser cone, and a second vent defined between the hub and the motor housing. An airflow path in which air flows from the inlet to the outlet is defined in the airflow pipe. A circulation path in which the air flows from the first vent to the second vent is defined in the airflow pipe. When a circumferential end of the second vent on the inlet side is a first end and a circumferential end of the second vent on the outlet side is a second end, an outer diameter of the first end is larger than an outer diameter of the second end.

公开(公告)号：US20150366424A1

公开(公告)日：2015-12-24

申请号：US14744403

申请日：2015-06-19

Applicant: MAKITA CORPORATION

Inventor： Shinsuke NAKA ,  Tomonobu NASHIMOTO ,  Yoshinori SHIBATA

IPC: A47L9/08 ,  B05B1/34 ,  B05B1/00

CPC classification number: B05B1/34 ,  A01G20/47 ,  E01H1/0809

Abstract: A nozzle pipe is to be coupled to a distal open end of an air blow-off tube of a blower apparatus for regulating the profile of an airflow blown out from the blow-off tube. The nozzle pipe comprises an outer tubular member and an inner tubular member coaxially disposed within the outer tubular member. The inner tubular member has a circumferential wall formed with apertures allowing air passage therethrough. The outer tubular member and the inner tubular member provides a first space therebetween to form a first air passage, while the inner tubular member provides a second space therein to form a second air passage. A plurality of rectifier fins are disposed inward from the outer tubular member, standing radially and extending longitudinally, and spaced apart circumferentially from each other. The fins extend inclined at an angle with reference to the longitudinal central axis of the tubular members.

Abstract translation: 喷嘴管将被连接到鼓风机装置的排气管的远端开口端，用于调节从吹出管吹出的气流的轮廓。 喷嘴管包括外部管状构件和同轴地设置在外部管状构件内部的内部管状构件。 内管状构件具有形成有允许空气通过其中的孔的圆周壁。 外部管状构件和内部管状构件在其间提供第一空间以形成第一空气通道，而内部管状构件在其中提供第二空间以形成第二空气通道。 多个整流器翅片从外部管状构件向内设置，径向放置并纵向延伸并且彼此周向间隔开。 鳍片相对于管状构件的纵向中心轴线以一定角度倾斜延伸。

公开(公告)号：US20210088050A1

公开(公告)日：2021-03-25

申请号：US17029530

申请日：2020-09-23

Applicant: Makita Corporation

Inventor： Shinsuke NAKA

IPC: F04D25/06 ,  A01G20/47 ,  F04D17/16

Abstract: A blower may include a plurality of batteries; a centrifugal fan configured to change a flow direction of air from a first direction extending along the rotation axis to a radially outward direction of the rotation axis; a volute casing including a discharge port and configured to guide the air from the centrifugal fan along a circumferential direction of the rotation axis to the discharge port; and a main grip disposed radially outward of the rotation axis and outside of the volute casing and configured to be gripped by an operator. A central axis of the main grip may extend along a reference plane perpendicular to the rotation axis. A distance from the reference plane to a center of gravity of the blower may be less than or equal to 1.5 times a width of the main grip.

公开(公告)号：US20230337600A1

公开(公告)日：2023-10-26

申请号：US18300029

申请日：2023-04-13

Applicant: MAKITA CORPORATION

Inventor： Shinsuke NAKA ,  Ryoji ZAMA

IPC: A01G20/47 ,  H02K5/08 ,  H02K5/20 ,  H02K9/06 ,  H02K11/33 ,  F04D19/00 ,  F04D25/06

CPC classification number: A01G20/47 ,  H02K5/08 ,  H02K5/207 ,  H02K9/06 ,  H02K11/33 ,  F04D19/002 ,  F04D25/06 ,  H02K2211/03

Abstract: A blower may include an inlet, an outlet, an airflow pipe disposed between the inlet and the outlet, a fan disposed in the airflow pipe, an electric motor disposed in the airflow pipe and configured to drive the fan, a motor housing that is disposed in the airflow pipe and houses the electric motor, and a control unit configured to control the electric motor. The control unit includes a control board configured to control the electric motor and a casing that houses the control board. The airflow pipe may include an exposure hole connecting inside of the airflow pipe to outside of the airflow pipe such that the inside and the outside are in communication in a radial direction. The casing may be attached to the airflow pipe such that at least part of the casing covers an entirety of the exposure hole from outside in the radial direction.

公开(公告)号：US20210148372A1

公开(公告)日：2021-05-20

申请号：US17085664

申请日：2020-10-30

Applicant: Makita Corporation

Inventor： Shinsuke NAKA ,  Ryoji ZAMA

IPC: F04D25/08 ,  F04D29/42 ,  F04D29/44

Abstract: A blower may include a motor; a centrifugal fan configured to rotate with rotation of the motor; a casing configured to guide air from a suction port to a discharge port; a trigger configured to be pressed; and a control board configured to control rotation of the motor. The control board may include a normal mode and a low speed mode. In the normal mode, the control board may be configured to adjust a rotation speed of the motor in accordance with a degree by which the trigger is pressed. In the low speed mode, the control board may be configured to adjust the rotation speed of the motor to a target rotation speed, wherein the target rotation speed is lower than a maximum rotation speed of the motor that is achieved when the degree by which the trigger is pressed is a maximum degree in the normal mode.

公开(公告)号：US20190301164A1

公开(公告)日：2019-10-03

申请号：US16283054

申请日：2019-02-22

Applicant: MAKITA CORPORATION

Inventor： Shinsuke NAKA ,  Ryoji ZAMA

IPC: E04D13/076

Abstract: A blower reduces debris blown toward an operator when air is jetted from a distal end of a blower pipe. A blower includes a blower body and a blower pipe. The blower body includes an impeller drivable to rotate by a prime mover, and a casing accommodating the impeller. The casing includes an air inlet and an air outlet. The blower pipe includes a basal end coupled to the air outlet, a distal end from which air ejected through the air outlet is jetted, and a peripheral wall having one or more openings.