公开(公告)号：US20220213903A1

公开(公告)日：2022-07-07

申请号：US17568897

申请日：2022-01-05

Applicant: Makita Corporation

Inventor： Masaki SAKURAGI ,  Atsushi Yamamoto ,  Shinpei Inagawa

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

Abstract: A blower may include a fan, a casing including a discharge port and housing the fan, and a nozzle attachable to the discharge port. The nozzle may include a nozzle tube in which air flows, and a plate member disposed within the nozzle tube. A rear end surface of the plate member may be inclined to a flow direction in which air flows within the nozzle tube.

公开(公告)号：US20170259359A1

公开(公告)日：2017-09-14

申请号：US15450091

申请日：2017-03-06

Applicant: MAKITA CORPORATION

Inventor： Hideki KACHI ,  Koji HANEDA ,  Masaki SAKURAGI

IPC: B23D57/02

CPC classification number: B23D57/023 ,  B27B17/0033

Abstract: Disclosed is a chainsaw capable of making it less likely that vibrations due to driving of an electric motor and a endless movement of a saw chain are transmitted to a worker, thereby enabling the worker to become less likely to be fatigued even in work using the chainsaw. The chainsaw includes an electric motor provided inside a body casing; a guide bar provided in a front portion of the body casing in such a manner as to protrude forwardly; a saw chain provided around an outer periphery of the guide bar in an endlessly movable manner, and configured to be endlessly moved along the outer periphery of the guide bar under driving of the electric motor; a handle section provided with respect to the body casing, and configured to be gripped by a worker; and an anti-vibration member interposed between the body casing and the handle section.

公开(公告)号：US20130276314A1

公开(公告)日：2013-10-24

申请号：US13859911

申请日：2013-04-10

Applicant: MAKITA CORPORATION

Inventor： Ko FUKUNAGA ,  Masaki SAKURAGI ,  Atsushi YAMAMOTO ,  Minoru YAMAMOTO

IPC: A01D34/90 ,  A01D34/412

CPC classification number: A01D34/905 ,  A01D34/412 ,  A01D34/4165 ,  F16C27/066 ,  F16C2310/00

Abstract: A work apparatus includes a drive motor, a tool head including a tool frame, a bearing, a tool shaft and a rotary tool, a frame tube with the proximal end connected to the drive motor and the distal end connected to the tool head, and a drive shaft rotatably inserted through the frame tube for transmitting the rotation of the drive motor to the rotary tool. The rotary tool is accommodated within the tool frame and is rotatable on the tool shaft, when driven by the drive shaft. The tool shaft is journaled by the bearing which is elastically supported by a flexible elastic member disposed coaxially around the bearing and interposed between the bearing and the connection of the tool frame or the frame tube. Undesirable vibrations caused by the rotation of the rotary tool will be effectively hindered from being transmitted to the frame tube.

Abstract translation: 工作装置包括驱动马达，包括工具框架的工具头，轴承，工具轴和旋转工具，具有连接到驱动马达的近端的框架管和连接到工具头的远端，以及 驱动轴可旋转地插入通过框架管，用于将驱动马达的旋转传递到旋转工具。 旋转工具容纳在工具框架内，并且当由驱动轴驱动时可旋转工具轴上。 工具轴由轴承支承，该轴承由同轴地布置在轴承周围的柔性弹性构件弹性地支撑，并且插入在轴承和工具框架或框架管的连接之间。 由旋转工具的旋转引起的不良振动将被有效地阻止传递到框架管。