公开(公告)号：US09435126B2

公开(公告)日：2016-09-06

申请号：US13790429

申请日：2013-03-08

申请人： FAKRO PP Sp. z o.o

发明人： Boguslaw Kasinski ,  Bartlomiej Mos

IPC分类号： E04F11/06

CPC分类号： E04F11/064 ,  E04F11/06

摘要： There is provided folding stairs having three segments of ladder stairs connected to one another with hinges. The first segment of stairs is connected with an articulated joint to a door frame using hinge holders fitted on the inside wall of the door frame, such that, during unfolding of these stairs rotation axle of the first segment of stairs does not change its position against the door frame. A flap is suspended to the first segment of stairs with at least two pairs of connecting rods, which together with the first segment of stairs and the flap form four-bar linkage.

摘要翻译： 提供了折叠楼梯，其具有通过铰链彼此连接的梯级楼梯的三段。 楼梯的第一段通过铰链保持器与门框架连接到门框上，铰链保持件安装在门框的内壁上，使得在第一段楼梯的这些楼梯旋转轴的展开期间，不会改变其位置 门框。 翼片悬挂在具有至少两对连​​杆的楼梯的第一段上，其连同第一段楼梯和翼片形成四杆连杆。