Title:
WORK MACHINE
Document Type and Number:
Japanese Patent JP2023051583
Kind Code:
A
Abstract:
To provide a work machine capable of securing a long life.SOLUTION: A brush 11 has a high resistance part 12 and a low resistance part 13. In the brush 11, a notched part 11a is disposed on the high resistance part 12. The brush 11 has a rectangular cross-sectional shape formed with the notched part 11a by chamfering one of corner parts. The notched part 11a forms an inclined surface inclined to a rotating direction of a motor 6. A cylindrical part 16 has an inclined part 16a as an engagement part engaging with the notched part 11a. The cylindrical part 16 is configured so that the brush 11 can be attached/detached at a relative position where the notched part 11a and the inclined part 16a engage with each other. In the brush 11 held by a holder 15 in the state where the inclined part 16a and the notched part 11a engage with each other, the low resistance part 13 is positioned, with respect to the high resistance part 12, on an upstream side in the rotating direction of the motor 6. In the rotating direction of the motor 6, the width of the low resistance part 13 is smaller than the width of the high resistance part 12.SELECTED DRAWING: Figure 8
Inventors:
TANIMOTO HIDEYUKI
YAMAGUCHI YUTO
YAMAGUCHI YUTO
Application Number:
JP2021162392A
Publication Date:
April 11, 2023
Filing Date:
September 30, 2021
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD
International Classes:
B25F5/00; B24B23/02; H02K13/00
Attorney, Agent or Firm:
Takashi Murai
Hiromi Murai
Hiromi Murai