| 摘要 |
PROBLEM TO BE SOLVED: To surely discharge friction powder from a multiple disc clutch mechanism. SOLUTION: In the friction powder countermeasure mechanism for dry multiple disc clutch mechanism in an automatic transmission of a hybrid structure configured so that transmission/non-transmission of rotation is switched between an input shaft 1 to which rotation of an engine is input and a rotor 2 of a motor through the dry multiple disc clutch mechanism 30 constituted by alternately laminating a drive plate 31 and a driven plate 32 in an axial direction, a driven plate support section 27 having a spline 271 for fitting in and supporting the driven plate 32 formed on the inner periphery thereof is disposed on the rotor 2 in a fixed manner, on the radial inside of a magnet support portion 25 of the rotor 2, with a gap 28 between an inner circumferential surface 251 of the magnet support portion 25 and an outer circumferential surface 27a of the driven plate support portion 27. The driven plate support portion 27 includes a communicating portion 273 which allows the radial inside and outside of the driven plate support section 27 to communicate each other, and an inclined zone 29 is provided on an inner circumferential surface 251 of the magnet support section 25. COPYRIGHT: (C)2011,JPO&INPIT
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