| 摘要 |
An air cushion for exercise in accordance with the present invention has a bladder (10) and a ballast stay (15) accommodated inside the bladder (10). The bladder (10) has a flat bottom (11) and a bulge top (12). The ballast stay (15) is thermally welded to the bottom (11) to stiffen the bottom (11) to make the air cushion stably placed on the ground. Combining the bladder (10) and ballast stay (15) in one piece makes the configuration of the air cushion simple and also simplifies the manufacturing process to reduce product cost of the air cushion.
|
