公开(公告)号：EP0092568B1

公开(公告)日：1986-05-28

申请号：EP82903350.5

申请日：1982-11-01

申请人： Midland Produktion

发明人： Lundh, Jöran

IPC分类号： E04F11/04

CPC分类号： E04F11/064

摘要： Foldable or retractable ladder, especially for use at an opening in the ceiling, for example, to an upper storey such as an attic in a building or the like, which ladder comprises a plurality of sections (11, 12, 13) arranged in operative position of the ladder, in such a manner, that the upper section (13) of the ladder by hinge members (15) is pivotally attached to a frame (14) for the door opening, and the folding-down movement of the ladder is limited by a toggle joint arrangement (16, 17) attached to the upper section (13) of the ladder. The toggle joint arrangement consists of two toggle joints attached to each side of the frame and, respectively, each side rail of the ladder and interconnected at the ladder by means of an axle (18) extending in parallel with the runs.

公开(公告)号：EP0137812B1

公开(公告)日：1987-07-22

申请号：EP84900901.4

申请日：1984-02-09

申请人： Midland Produktion

发明人： LUNDH, Jöran

IPC分类号： E06B1/56 ,  E06B5/02

CPC分类号： E06B1/6053 ,  E06B1/6015 ,  E06B5/01

摘要： Method and device for facilitating the mounting of a frame member (1) in an opening in a wall or ceiling. According to the invention, at leat on one side of the opening or on the frame (1) at least one member (3) is attached, which projects to rigid abutment to the frame and, respectively, opening, and is resilient in the direction to its attachment side. It is hereby prevented that the frame slides out of the opening while the frame is being mounted permanently.