| 摘要 |
<p>The present invention relates to a new arrangement of steps for dismountable stairs, intended to the industry of fabrication of stairs or staircases, and is characterized in that the configuration of the resultant stair is obtained by nesting U-shaped modules (1, 2, 3) (Fig. 1) which are similar in height, and joined together by means of conventional bolts (12) and nuts (13), fixed through holes (11, 11'), till a predetermined height is obtained. The steps, once dismounted, may be superimposed on top of each other and held together by means of an elongate member provided with a handle portion (Fig. 5). It could also be possible to join two similar and independent sections of ladders by nesting an auxiliary part at the top of each ladder section in order to obtain a reverse V-shaped stair or step-ladder.</p> |
