| 摘要 |
PROBLEM TO BE SOLVED: To prevent deformation and eccentricity of feed screws and provide a stable operation of therapeutic elements by a simple constitution in a parallel link mechanism type massage device. SOLUTION: This massage device 1 is provided with: the left/right therapeutic elements 2 abutting on a human body M and executing a massage; drive parts 3 for actuating the therapeutic elements 2; the feed screws 4 rotated by being engaged with the respective drive parts 3; feed nuts 5 threadedly engaged with the respective feed screws 4 and fed along the length direction of the feed screws 4; and a connecting mechanism engaged with the therapeutic elements 2 and the feed nuts, transmitting the movements of the feed nuts 5 to the therapeutic elements and moving the therapeutic elements 2 in the vertical, horizontal and extracting/retracting directions. The feed screws 4 are disposed in the vertical direction Z, the drive parts 3 are disposed thereunder, the both ends of the respective feed screws 4 are supported to bearing parts 6 and 7 having an alignment mechanism for aligning the eccentricity of the feed screws 4. The alignment mechanism suppresses the deformation of the respective feed screws and twisting with the feed nuts to realize the smooth movement of the therapeutic elements 2. COPYRIGHT: (C)2008,JPO&INPIT
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