| 摘要 |
PURPOSE:To provide a small-sized and light electromagnetic clutch and to improve magnetic efficiency by connecting an inside support member coupled to a driven rotary shaft to an outside support member having a polar moving piece fixed at a surface thereof confronting with an input rotor through a buffer element to form an output rotor. CONSTITUTION:Outside and inside support members 4, 5 having an outward projecting portion 5b and an inward projecting portion 4c are manufactured in one body using an aluminium alloy by casting or forging. Rubber buffer elements 8a', 8a'' are vulcanized and joined between the inward and outward projecting portions 4c, 5b. Subsequently, a coupling portion connecting both support members 4, 5 is removed and separated to form a buffer element assembly, and separately inside and outside polar moving pieces 3, 2 are formed by blanking a soft steel plate to be fitted to a guide portion of the outside support member 4. Further, a hub 6 connecting a driven shaft 51 is fitted to the inside of the buffer element assembly to form a rotor 1. Accordingly, magnetic efficiency is excellent, and a small-sized and light electromagnetic clutch can be provided to improve productivity.
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