公开(公告)号：US20200224732A1

公开(公告)日：2020-07-16

申请号：US16624628

申请日：2018-05-10

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Masatoshi MIYAGAWA ,  Hiromi FUJIWARA ,  Naofumi INOUE

IPC: F16D13/74 ,  F16D13/64 ,  F16D65/12 ,  F16D13/72

Abstract: Provided is a wet friction plate capable of further reducing drag torque. A wet friction plate 200 is configured to include an oil groove 203 and a friction material 210 on a flat plate annular core metal 201. The friction material 210 is formed with ride-on sides 214a, 214b and a ride-on groove 215. The ride-on sides 214a and 214b respectively extend linearly between an inner peripheral edge portion 211 formed on an inner side in a radial direction of the core metal 201 and two circumferential end portions 213a, 213b respectively extending in the radial direction at both end portions in a circumferential direction of the core metal 201. The ride-on groove 215 extends in a concave shape toward an outer side in the radial direction of the core metal 201 at a central portion of the inner peripheral edge portion 211 in the circumferential direction of the core metal 201. Further, the ride-on sides 214a and 214b are respectively formed to extend in a direction away from an imaginary oil groove center line L from the circumferential end portions 213a and 213b toward the inner peripheral edge portion 211.