| 摘要 |
The improved design of the teeter totter apparatus will allow individuals of varying weight to manually make adjustments to the beam by offsetting it upon its tripod support structure in order to balance themselves. By applying vertical force, the users will be able to create an up and down rocking motion. At the same time, the users will be able to exert a horizontal force to move the apparatus in a horizontal rotational plane around the upstanding support structure. This will induce a vertical and horizontal motion. The combination of these parts are the backbone of the overall structure and are the key to the design of the apparatus.
|
