| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a frictional plate and a frictional engagement device capable of suppressing generation of judder while keeping a suppression effect of a dragging phenomenon.SOLUTION: A frictional plate includes an annular core body 71, and frictional members 72 disposed on side surfaces 71a and 71b in the thickness direction, of the core body 71, the core body 71 has the waveform in which wave apex portions 71t and wave bottom portions 71s are alternately repeated in the thickness direction along the circumferential direction, and the frictional members 72t of the wave apex portions 71t of the core body 71 have relatively high porosity and relatively low elastic modulus with respect to the frictional members 72s of the wave bottom portions 71s of the core body 71.</p> |
