Title:
BRAKE DISC
Document Type and Number:
Japanese Patent JP2020159543
Kind Code:
A
Abstract:
To improve thermal dispersion performance in braking and to reduce stress occurring in a brake disc due to frictional heat during braking.SOLUTION: A brake disc is provided with: a doughnut-shaped disc-like plate part 1a having a sliding surface on a front surface side; a plurality of bolt fastening fin parts 2 that are projected on the back surface of the plate part 1a so as to extend radially at intervals from each other, and are fastened to wheels 20 by inserting a fastening bolt 21 into a bolt insertion hole 2a provided in the middle in a longitudinal direction; and a rib part 4 connecting the bolt fastening fin part 2 with the adjacent bolt fastening fin part 2 and extending in a circumferential direction. The rib part 4 is formed so that a width direction center of the rib part 4 viewed in a radial direction is arranged within a range of 19 mm radially inward from the center of the bolt insertion hole 2a and within a range of 21 mm radially outward from the center of the bolt insertion hole 2a.SELECTED DRAWING: Figure 3
Inventors:
NAKANO KATSUHIRO
TANIDA YUKIO
HARADA HISANORI
TANIDA YUKIO
HARADA HISANORI
Application Number:
JP2019063070A
Publication Date:
October 01, 2020
Filing Date:
March 28, 2019
Export Citation:
Assignee:
KURIMOTO LTD
International Classes:
F16D65/12; B61H5/00
Domestic Patent References:
| JP2007205428A | 2007-08-16 |
Foreign References:
| WO2010071169A1 | 2010-06-24 |
Attorney, Agent or Firm:
Maeda patent office