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1. 发明授权

EP0092568B1 FOLDABLE OR RETRACTABLE LADDER FOR MOUNTING IN A CEILING 无效
标题翻译：用于安装在天花板上的可折叠或可折叠的梯子
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.

2. 发明授权

EP0137812B1 DEVICE FOR FACILITATING THE MOUNTING OF A FRAME MEMBER IN A WALL OR CEILING OPENING 无效
标题翻译：用于促进墙壁或屋顶开放中的框架构件的安装的装置
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.

3. 发明专利

DE3464943D1 DEVICE FOR FACILITATING THE MOUNTING OF A FRAME MEMBER IN A WALL OR CEILING OPENING 未知
公开(公告)号：DE3464943D1
公开(公告)日：1987-08-27
申请号：DE3464943
申请日：1984-02-09
申请人： MIDLAND PRODUKTION
发明人： LUNDH JORAN
IPC分类号： E06B1/60 , E06B5/01 , E06B1/56 , E06B5/02

5. 发明专利

SE447589B 未知
公开(公告)号：SE447589B
公开(公告)日：1986-11-24
申请号：SE8106488
申请日：1981-11-03
申请人： MIDLAND PRODUKTION
发明人： LUNDH J
IPC分类号： E04F11/06 , E04F11/04
摘要： PCT No. PCT/SE82/00360 Sec. 371 Date Jun. 22, 1983 Sec. 102(e) Date Jun. 22, 1983 PCT Filed Nov. 1, 1982 PCT Pub. No. WO83/01638 PCT Pub. Date May 11, 1983.The invention relates to a foldable or retractable ladder, especially for use at an opening in the ceiling, for example, to an upper story 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.

6. 发明专利

DE3271434D1 FOLDABLE OR RETRACTABLE LADDER FOR MOUNTING IN A CEILING 未知
公开(公告)号：DE3271434D1
公开(公告)日：1986-07-03
申请号：DE3271434
申请日：1982-11-01
申请人： MIDLAND PRODUKTION
发明人： LUNDH JORAN
IPC分类号： E04F11/06 , E04F11/04
摘要： PCT No. PCT/SE82/00360 Sec. 371 Date Jun. 22, 1983 Sec. 102(e) Date Jun. 22, 1983 PCT Filed Nov. 1, 1982 PCT Pub. No. WO83/01638 PCT Pub. Date May 11, 1983.The invention relates to a foldable or retractable ladder, especially for use at an opening in the ceiling, for example, to an upper story 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.

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