| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of components and to make a massage unit small-sized. SOLUTION: A swing arm 15 provided with a treater 16 for treating a part to be treated is made swingable by a voice coil motor 5 as a linearly reciprocating driving part and a distance A from the center of a pin 19 which is the working point to the swing arm 15 of the voice coil motor 5 to the fulcrum 18 of the swing arm 15 is made shorter than the distance B from the center of the treater 16 to the fulcrum 18 of the swing arm. The swing arm provided with the treater is directly swung by the driving part, the number of the components is reduced, the treater is moved at a stroke larger than the stroke of the driving part, and the massage unit can be small-sized. COPYRIGHT: (C)2004,JPO
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