Title:
ディスクブレーキパッドの成形方法
Document Type and Number:
Japanese Patent JP6763688
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a molding method of a homogeneous disc brake pad having small density difference between a chamfering portion of a friction member of the disc brake pad and the other portion.SOLUTION: A molding method of a disc brake pad uses a mold assembly composed of a lower die, an upper die having a die hole for forming the outer peripheral shape of a friction member, a molding die for molding an upper end face of the friction member, and a molding die for forming a chamfering portion. A back plate is placed on the lower die, the upper die is placed on a desired position, a raw material composed of a composition of the friction member is charged into a cavity formed by a die hole of a press die and the back plate, the molding die to form the chamfering portion of the friction member is lowered, the raw material corresponding to a volume of a cutout formed by chamfering is made to flow to the center in advance, then the molding die for molding the upper end face of the friction member is lowered, and the raw material is thermally pressed and molded, thus the friction member provided with the chamfering portion on one end face of the back plate is integrally molded.SELECTED DRAWING: Figure 2
Inventors:
Toshimasa Watai
Hisashi Sakamoto
Akio Shirato
Hisashi Sakamoto
Akio Shirato
Application Number:
JP2016099659A
Publication Date:
September 30, 2020
Filing Date:
May 18, 2016
Export Citation:
Assignee:
Japan Brake Industrial Co., Ltd.
International Classes:
F16D69/04; B29C43/18; F16D69/00
Domestic Patent References:
| JP2004324763A | ||||
| JP2016173116A | ||||
| JP2015000429A |
Foreign References:
| KR1020110070833A |
Attorney, Agent or Firm:
Otani patent office
Michiko Daigo
Michiko Daigo