| 摘要 |
PROBLEM TO BE SOLVED: To use only a single kind of clutch for selectively transmitting motive power from a motor to an operation output part in spite of providing a plurality of operation output parts with different outputs to be required. SOLUTION: The output of the motor 1 is selectively transmitted to a plurality of operation output parts 2a-2d by which a massage operation and a moving operation, etc., are performed via the clutches 3a-3d in a massage machine. The clutches 3a-3d are constituted of electromagnetic driving type friction clutches and also the maximum power to be impressed on each clutch is made to be the one corresponding to the operation entity of the operation output parts to which each clutch transmits motive power. The maximum power to be impressed on the respective clutches is changed through the use of the friction clutches for performing connection by electromagnetic power so that force which is transmitted by the clutches is made to be the one corresponding to the operation output parts connected to the clutches.
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