| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it possible to obtain effects intended by a user in just proportion by making it possible to make a twisting angle and a twisting speed or others stable and constant when doing a twisting exercise of a waist. <P>SOLUTION: An automatic twister has a base portion 2, a rotary plate 3 held rotatably in forward and rearward directions on the base portion 2, formed in a space on which the user can get on, and whose upper face is inclined in one direction relative to the installation face G, and a repetition driving portion 4 repeatedly turning the rotary plate 3 in forward and rearward directions within a predetermined angle, the repetition driving portion 4 has a electric motor 30 and a power converting portion 31 taking out forward and rearward repeating turning movement from the rotational driving of the electric motor 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
