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Title:
FRICTION PLATE FOR FRICTION TYPE COUPLING
Document Type and Number:
Japanese Patent JPH09126257
Kind Code:
A
Abstract:

To obtain a friction plate for a friction type coupling which has its friction coefficient less fluctuate with time by making the ratio of a friction area with respect to the whole area of a friction plate, which is the total of the friction area and the non-contacting area, to be less than 60% and 10% for optimum.

A friction plate 1 consists of a non-contacting area formed by carving out a recessed area 1b of fan-shaped flat cross section on the surface of the friction plate 1, whose cross section is a hollow ring shape, so as to pass through the inner and outer circumferential surfaces, and also a friction area 1a whose plane shape is rectangle and protrusion is extended radiately as effected by the recessed area 1b. At this time, the total area ratio of a friction contacting area of the protruding part (for example, 1a) is made less than 60%, perferably less than 10% with respect to the total area of friction plates 1 to 6 (for example, 1a plus 1b). Thus friction powder produced between the friction plates is easily discharged to the non-contacting area and, as a result, it is deemed that it is because element involving fluctuation of friction force of the friction powder intervening between the friction plates reduces and enables and torque fluctuation to be lessened.


Inventors:
Tamura, Hideki
KO, Satoru
Application Number:
JP1995000302214
Publication Date:
May 13, 1997
Filing Date:
October 27, 1995
Export Citation:
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Assignee:
SHINKO ELECTRIC CO LTD
International Classes:
F16D69/00; F16D59/02; F16D65/12; F16D65/14; (IPC1-7): F16D69/00
Attorney, Agent or Firm:
後藤 武夫 (外2名)



 
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