| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sealing type coupling of satisfactory productivity, and durability, capable of preventing an internal pressure from rising. SOLUTION: This coupling comprises a rotating member 3 having oil filled therein, a connection member 5 disposed at the axial part of the rotating member 3, a main clutch and a controller clutch disposed between both members 3 and 5, an electromagnet 19 disposed on the outside of the rotating member 3 and engaging the control clutch 9, a ball cam 13 converting an engagement torque of the control clutch 9 to a thrust force, and a pressure plate 15 receiving a thrust force to press and engage the main clutch 7. The inside of the coupling is sealed. In this case, an axially passing hollow hole 41 is provided in the connection shaft 5, and pressure regulating means 50 to regulate the pressure inside the coupling is provided in the hollow hole 41.</p> |
