| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction clutch by which power transmission can be reliably effected even at low temperatures to increase coefficient of friction, and torque fluctuation caused by temperature variation is reduced. SOLUTION: A pressure plate 21 is pressed against a carbon disc 16 by being urged by a diaphragm spring 22. The carbon disc 16 is pressed against a frictional face 43 of a flywheel 2, the torque of the flywheel 2 is transmitted by means of the carbon disc 16 and a hub 15 to a rotary shaft 3. The frictional faces 40, 41 of the flywheel 2 and the pressure plate 21 are made up respectively of cutting-worked faces to increase frictional connection force with the pressure plate 21. The frictional faces 40, 41 are formed to have rough surfaces by cutting at a feed pitch of 0.2-0.5 mm, and have spiral cutting traces. COPYRIGHT: (C)2007,JPO&INPIT
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