| 摘要 |
PURPOSE: To improve durability and the frictional coefficient by attaching to a clutch plate the fiber which constitutes the skelton of an wet type frictional member so as to be set with a specific angle in the standard direction, with respect to the frictional direction of the clutch plate. CONSTITUTION: A virtual circle (p) is drawn in the intermediate part of the inside diameter D1 and the outside diameter D2 of a clutch 4. The tangential line of the supposed line (p) is drawn at the crossing point O between the supposed circle (p) and the line R in the radial direction of a clutch plate 13. On the outside diameter D2 side of the tangential line (t) of the supposed line (p), the revolution direction M of the clutch plate 13 is set at 180 deg. with respect to the crossing point O, and the frictional direction is set at 0 deg.. As for the fiber which constitutes the skelton of the orientation manufactured paper, the degree of orientation in±20% or less from the vertical direction to the standard direction showing the direction for forming the orientation manufactured paper is set to 20-65%. Further, when the fiber is oriented within a range of 90-135 deg. with respect to the revolution direction, the lubricating oil is removed by the centrifugal force along the oriented fiber. Accordingly, the dynamic frictional coefficient can be improved, and the durability of the clutch plate can be improved.
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