| US 7,370,743 B2 | ||
| Power transmitting apparatus | ||
| Makoto Kataoka, Shizuoka (Japan); Satoru Kashiwagi, Shizuoka (Japan); and Shunichi Itou, Shizuoka (Japan) | ||
| Assigned to Kabushiki Kaisha F.C.C., (Japan) | ||
| Filed on Nov. 08, 2005, as Appl. No. 11/269,191. | ||
| Claims priority of application No. 2004-325288 (JP), filed on Nov. 09, 2004. | ||
| Prior Publication US 2006/0096829 A1, May 11, 2006 | ||
| Int. Cl. F16D 13/54 (2006.01) | ||
| U.S. Cl. 192—70.23 [192/93 A; 192/96] | 5 Claims |
| 1. A power transmitting apparatus comprising:
a clutch housing rotatable together with an input member having a plurality of driving clutch plates;
a clutch member connected to an output member having a plurality of driven clutch plates alternately arranged between the
driving clutch plates of the clutch housing;
a rotational force inputted to the input member can be transmitted to or cut-off from the output member via pressure-contact
or release between the driving clutch plates and driven clutch plates;
said clutch member includes pressure-contact assisting cams, when a transmission condition of rotational force inputted to
the input member to the output member is achieved, said assisting cams increasing the pressure-contacting force between the
driving clutch plates and driven clutch plates, said clutch member also including back-torque limiting cams, when the rotational
speed of the output member exceeded that of the input member, said torque limiting cams releasing the connection between the
driving clutch plates and the driven clutch plates, and a gradient angle of the back-torque limiting cams is formed larger
than a gradient angle (α1) of the pressure-contact assisting cams.
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