| 摘要 |
<p>A belt-typed belly exerciser includes a flexible circular tube configured to surround and fasten a belly and a waist of a user; a rotating bar having an arch shape and installed over a predetermined region in the tube; a pair of driving motors installed in the tube and connected to both ends of the rotating bar to rotate the rotating bar; and a plurality of bearings interposed between the tube and the rotating bar.</p> |
