| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wet multi-disc frictional engaging device for improving heat resistance of a clutch part by preventing the partial presence of a heating part caused in a frictional engaging process, when a friction surface of the whole plates contacts on the whole engaging surface by uniform bearing pressure by bringing a load action position of the plates on the piston side and the opposite side of a piston to the central vicinity. <P>SOLUTION: This wet multi-disc frictional engaging device has a clutch part composed of an internal teeth plate having a friction material on at least one surface in the axial direction and an external teeth plate alternately arranged in the axial direction with the internal teeth plate, and the piston for applying pressing force for engaging the internal teeth plate with the external teeth plate to the clutch part. A load action part acting on the clutch part is arranged on both sides in the axial direction of the clutch part. A contact part of contacting the load action part with the clutch part is positioned in a predetermined range of about 20% of a width in the radial direction of a frictional engaging part in the outer diameter direction from a central position of the frictional engaging part and about 20% of a width in the radial direction of the frictional engaging part in the inner diameter direction. A width in the radial direction of the contact part is set to about 10% or less of the width in the radial direction of the frictional engaging part. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
