| 摘要 |
PROBLEM TO BE SOLVED: To overcome the disadvantages of a massage machine such as the lost-motion massage and lost-motion padding above the shoulder position, and operator's impossibility of reaching the position of a user's shoulder by adapting the amount of projection of an operating element from the backrest surface and the position in the shoulder length direction to the shape of the back of a user. SOLUTION: In the back, the shape of a curve in the shoulder length direction and the shape of a curve in the posterior waist length direction are specified, whereby the shape of a user's back is recognized to specify the moving locus of the treating element 5 adapted for the shape. COPYRIGHT: (C)2004,JPO
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