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Patent Searching and Data


Title:
FRICTION PAD ASSEMBLY AND MANUFACTURE OF THE SAME
Document Type and Number:
Japanese Patent JPS5831734
Kind Code:
A
Abstract:

PURPOSE: To produce a friction pad that makes a less braking noise, by forming a projection on the surface of a backing plate and a concave part in the undersurface thereof, applying a friction material to the surface, filling the undersurface with rubber, and molding them under pressure and heating.

CONSTITUTION: The backing plate 1 having the projection 3 on the surface is placed between a mold 4 and a table 5. In this case, a piece 6 of unvulcanized rubber is inserted in the concave part in the undersurface of the backing plate 1. A suitable amount of a raw material 7 for the friction pad is fed on the backing plate in the mold 4, is heated through the mold and the table, and is press molded by a pressing upper lever 8. Then the raw material for the friction pad is molded under pressure and heating into the friction pad 2, and at the same time the unvulcanized rubber piece 6 is deformed to be filled into the concave part of the backing plate, and also flowed between the backing plate 1 and the table 5 to be formed into a thin rubber layer 9.


Inventors:
YAMAMOTO MASACHIKA
Application Number:
JP12984781A
Publication Date:
February 24, 1983
Filing Date:
August 18, 1981
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
B29C43/00; B29B15/00; B29C43/02; B29C70/68; F16D65/00; F16D65/095; F16D69/04; (IPC1-7): F16D65/04; F16D69/00
Attorney, Agent or Firm:
Rio Tanaka