Title:
HYDRAULIC DEVICE FOR DRUM BRAKE
Document Type and Number:
Japanese Patent JP2018197552
Kind Code:
A
Abstract:
To provide a hydraulic device for a drum brake capable of disposing a water-proof or dust-proof boot of a cylinder body at low costs.SOLUTION: A wheel cylinder (hydraulic device for drum brake) 10 includes a cylinder main body 48 composed of a cylinder body 70 and an annular groove formation member 72. Press-fitting portions 70b for press-fitting the annular groove formation member 72 are respectively formed on both side end faces 70a of the cylinder body 70, a flange 72a is formed on one end portion of the annular groove formation member 72, and the other end portion of the annular groove formation member 72 is press-fitted to the press-fitting portion 70b. Further a second annular groove 72b for fitting an outer peripheral-side fitting portion 52b of a boot 52, is formed between a flange 72a of the annular groove formation member 72 and an end face 70a of the cylinder body 70 provided with the press-fitting portion 70b. Thus the cylinder main body 48 can reduce a cutting work range.SELECTED DRAWING: Figure 2
Inventors:
ABE SEIJI
Application Number:
JP2017101225A
Publication Date:
December 13, 2018
Filing Date:
May 22, 2017
Export Citation:
Assignee:
HOSEI BRAKE IND
International Classes:
F16D65/00; F16D65/22; F16J3/04; F16J15/52
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda