POWER TOOL - Koki Holdings Co., Ltd.

Title:

POWER TOOL

Document Type and Number:

Japanese Patent JP2022168014

Kind Code:

A

Abstract:

To provide a power tool with high dust resistance.SOLUTION: A power tool comprises: a housing 2; a motor 3 supported in the housing 2; a plunger 7 supported in the housing 2 and receiving driving force of the motor 3 and driving, an annular member 923 and an O-ring 924 enclosing an outer peripheral surface of the plunger 7 and sealing the outer peripheral surface of the plunger 7; and a holding part supported by the housing 2, enclosing the annular member 923 and the O-ring 924 and supporting the annular member 923 and the O-ring 924 so that they contact the outer peripheral surface of the plunger 7 while storing lubrication oil. The lubrication oil is supplied between the O-ring 924 and the outer peripheral surface of the plunger 7 when the O-ring 924 presses at least a part of the holding part along with the driving of the plunger 7.SELECTED DRAWING: Figure 6

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Inventors:

Ryosuke Nakano
Jinichi Yokoyama

Application Number:

JP2022139542A

Publication Date:

November 04, 2022

Filing Date:

September 01, 2022

Export Citation:

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Assignee:

Koki Holdings Co., Ltd.

International Classes:

B27G3/00; B23D49/16; B23D51/00; B25F5/00; B27B19/09

Attorney, Agent or Firm:

Kazuhiro Kitazawa
Shin Koizumi
Teppei Fukumoto
Yoshie Kim

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