Title:
SEAL INSTALLING STRUCTURE FOR CLUTCH
Document Type and Number:
Japanese Patent JP2017227234
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To mitigate a stress of an outer circumferential diaphragm acting against an inner circumferential end part through its repetitive deformation and improve durability of the outer circumferential diaphragm.SOLUTION: There are provided an outer ring 20 and an inner ring 21; a middle ring 30 arranged between the outer ring 20 and the inner ring 21; an outer circumferential side diaphragm 60 of a rubber elastic body connecting between the outer ring 20 and the middle ring 30; and an inner circumferential side diaphragm 70 of the rubber elastic body connecting between the middle ring 30 and the inner ring 21. A piston 83 comprises a piston base part 83a for transmitting a stroke of the piston 83 to the middle ring 30 and a piston top part 83b connected to this piston base part 83a to depress a clutch plate. The middle ring 30 comprises a middle ring outer circumferential part 40 having an adhering part 41 adhered in buried state to an inner circumferential end part 62 of the outer circumferential side diaphragm 60 and a part 42 to be fixed that is held between an outer circumferential part of the piston base part 83a and an outer circumferential part of the piston top part 83b; and a middle ring inner circumferential part 50 fixed to the piston base part 83a and/or the piston top part 83b.SELECTED DRAWING: Figure 3
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Inventors:
HASEGAWA MASAYA
OKABE HITOSHI
INOUE MITSUAKI
OKABE HITOSHI
INOUE MITSUAKI
Application Number:
JP2016122254A
Publication Date:
December 28, 2017
Filing Date:
June 21, 2016
Export Citation:
Assignee:
NOK CORP
International Classes:
F16J3/02; F16D25/12
Attorney, Agent or Firm:
Yoichi Nomoto
Kiriyama Dai
Kiriyama Dai