| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch mechanism for reducing drag torque by a simple structure. SOLUTION: The clutch mechanism 1 includes a fly wheel 12 arranged in a crankshaft 11, a clutch disk 14 arranged in an input shaft 13 relatively rotationally to the fly wheel 12, and a pressure plate 17 pressing the clutch disk 14 to the fly wheel 12. In the fly wheel 12, an air flow port 34, which communicates a jetting port 32 opened in a frictional engagement face 31 with an introduction port 33 opened on the inside diameter side beyond the frictional engagement face 31, is formed inside. An air flow port 44 communicating a jetting port 42 opened in a frictional engagement face 41 with an introduction port 43 opened on the inside diameter side beyond the frictional engagement face 41 is formed inside a pressure plate 17. COPYRIGHT: (C)2011,JPO&INPIT
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