| 摘要 |
FIELD: construction.SUBSTANCE: circular stairs comprises steps having a horizontal element. Each horizontal element comprises front and rear ends. According to the invention, the step additionally comprises two vertical elements arranged at the angle to horizontal elements. The first vertical element is connected to the front end of the horizontal element and is installed as resting against the horizontal element of the previous step along with motion up the stairs with a gap between the specified first vertical element and the second vertical element of the previous step. The second vertical element is connected to the rear end of the horizontal element and is installed as resting against the horizontal element of the next step along with motion up the stairs with a gap between the second vertical element and the first vertical element of the next step along with motion.EFFECT: increased convenience.5 cl, 9 dwg |
