公开(公告)号：US20240159058A1

公开(公告)日：2024-05-16

申请号：US18445600

申请日：2023-11-09

申请人： COM 3 Inc.

发明人： James Todd

IPC分类号： E04F11/06

CPC分类号： E04F11/062

摘要： A laterally collapsible staircase with first and second side rails has a number of advantages compared to prior structures. A leveling screw is connected to the second side rail bottom surface to adjust the position of the stairs when deployed to insure that the stairs are horizontal. The second rail has a top side edge extending between its top and bottom and a recessed area extends along the second rail top side edge allowing a user's fingers to grip the rail to facilitate its movement between laterally collapsed and deployed positions. At least one permanent magnet is connected to the second side rail inner surface capable of interacting with another aligned permanent magnet mounted in a wall to help maintain the second side rail in a laterally collapsed position until intentionally moved. Pre-calibrated gas struts eliminate racking, jiggle, and bounce of the staircase.