| 摘要 |
A tumbling teaching and practice device includes a pair of side supports and a floor support. The floor support is hingedly affixed to be collapsible and thereby permit the device to be compacted for storage when not in use. The floor support includes a pair of hingedly affixed floor boards which are rotated against the sides when the device is collapsed and fit juxtaposed to one another when the device is expanded for use. In addition, a floor mat fits on top of the floor boards. The two side frames support a channel having a round member therein. A roller assembly is affixed to the round member to be able to easily travel laterally along the length of the device. Straps may bone attached from each roller assembly and are adapted to be affixed to a belt worn by the student using the device. The student may then be assisted in learning to do tumbling exercises by an instructor holding onto or feling the strap or the student may practice exercises already known by wearing the belt and adjusting the straps to be almost tight. Should the student fall or perform an exercise incorrectly the belt and straps would prevent the student from being injured by breaking dangerous falls to the ground.
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