| 摘要 |
A stand includes a holding frame and a plurality of spaced apart leg units. Each leg unit includes an upper leg having an upper end connected securely to the holding frame and a lower end, and a lower leg having an upper end pivoted to the upper leg adjacent to the lower end of the upper leg so as to be rotatable between a folded position, in which the lower legs are disposed in a storage space defined by the upper legs, and in which the lower ends of the upper legs can be seated on a supporting surface, and an extended position, in which lower ends of the lower legs are disposed at an elevation below the lower ends of the upper legs, and in which the lower ends of the lower legs can be seated on the supporting surface.
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