| 摘要 |
PROBLEM TO BE SOLVED: To provide a tread mill and an in-water walking training device which have improved durability by eliminating a toothed structure.SOLUTION: A tread mill 2 is provided that comprises: a driving roller 20 which has a horizontal rotation axis, is driven by a drive source and in which a surface of the driving roller 20 is lined with rubber; an idle roller 21 which is disposed in parallel to the driving roller 20; and an endless annular belt 22 which is trained over the driving roller 20 and the idle roller 21 and on the upper surface of which a user can walk. In the tread mill, frictional force between the driving roller 20 whose surface is lined with the rubber and the endless annular belt 22 is increased, and the driving roller 20 can rotate the endless annular belt 22 without employing toothed structure, and the durability can be improved.SELECTED DRAWING: Figure 2 |
