| 摘要 |
PROBLEM TO BE SOLVED: To achieve structure capable of easily performing folding and unfolding, and capable of sufficiently securing a height size in an unfolded state.SOLUTION: An upper leg body 18 is rotatably supported on an upper plate part using a first pivot as the center, and a lower leg body 19 is rotatably supported near a lower end of the upper leg body 18 using a second pivot 24 as the center. A stopper 20 to which upward elastic force is applied by a spring 11b is arranged in an upper end of the lower leg body 19. Thereby, when a folding leg 1b is unfolded, the upper leg body 18 and the lower leg body 19 can be engaged without operating the stopper 20. On the other hand, when the folding leg 1b is folded, the upper leg body 18 and the lower leg body 19 can be easily disengaged by operating the stopper 20. |
