| 摘要 |
PROBLEM TO BE SOLVED: To provide a massaging device allowing a massager to massage with fixed strength regardless of undulation on the upper half of a human back side. SOLUTION: An extensible air cylinder 16 is installed between the front surface 13 of the moving table 5 of the massaging device 1 and the massager 14 provided by projecting from there. An air feeding device 23 is connected to the cylinder 16 and a fixed pressure valve 21 is installed between them. When the massager 14 is pressed by the human back to contract the cylinder 16, air pressure inside of the cylinder 16 is raised. At this time, the valve 21 is opened to discharge air to outside. In addition, when the massager is projected to the side of the back to extend the cylinder 16, air pressure inside of the cylinder 16 is lowered. At this time, the device 23 is operated to always keep air pressure inside of the cylinder 16 like this way.
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