Title:
BRAKE DISK ROTOR
Document Type and Number:
Japanese Patent JP3777811
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress brake squeaks and groaning sounds effectively.
SOLUTION: This brake disc rotor is provided with a plurality of fins 3A and 3B arranged approx. in the radial direction of a rotor between opposing slide plates 1 and 2 and ventilation holes 4 with inner and outer ends in the rotor radial direction opened between the two slide plates 1 and 2 and between adjoining fins 3A and 3B. The fins 3A, 3B are grouped in sets S each including two long fin 3A, two short fin 3B, disposed alternately with long fin 3A and short fin 3B, with one of the long fins 3A furnished at the periphery with an expansion part 5 expanded in the width direction. The sets S are arranged periodically in the rotor circumferential direction, and the total number of fins is set to 4×2n, where (n) represents the order of the diameteric nodal mode.
Inventors:
Mitsuhiro Doi
Takashi Matsubara
Tsutomu Hamabe
Masahiro Kubota
Takashi Matsubara
Tsutomu Hamabe
Masahiro Kubota
Application Number:
JP21439398A
Publication Date:
May 24, 2006
Filing Date:
July 29, 1998
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F16D65/12; F16D65/00; (IPC1-7): F16D65/12
Domestic Patent References:
| JP9280278A | ||||
| JP5001734A | ||||
| JP2062434A | ||||
| JP1126433U | ||||
| JP6012846U | ||||
| JP60010935U | ||||
| JP7269613A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu