| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wet type multiple disk clutch of high operating precision by reducing the generation of drag resistance at the time of lifting a clutch engagement. <P>SOLUTION: A plurality of concave portions 18a are formed in a circular ring plate 18. The concave portions 18a is provided with a pitch which is different from a circular arc disk frictional radial oil groove which is composed of multiple disk clutch together with the circular ring plate 18. Accordingly, it is not necessary that an assembling phase of the circular arc disk and the circular ring plate 18 is severely controlled and some of the plurality of concave portions 18a are positioned out of the radial oil groove of the frictional material. In the concave portions 18a inside out of the radial oil groove of the frictional material, the lubricating oil is sealed when the circular arc disk and the circular ring plate 18 stick each other. Then, upon releasing of the clutch engagement, the lubricating oil sealed in the concave portions 18a stimulates to estrange the circular arc disk and the circular ring plate 18. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
