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    • 3. 发明申请
    • AN IMPROVED COLLAPSIBLE LADDER
    • 改进的可折叠梯子
    • WO2012004333A1
    • 2012-01-12
    • PCT/EP2011/061481
    • 2011-07-07
    • TELESTEPS ABHOLMBERG, Marcus
    • HOLMBERG, Marcus
    • E06C1/22E06C1/12
    • E06C1/125E06C7/06
    • A collapsible ladder (100), comprises a number of tube portions (210, 220, 310, 320) having various diameters and being telescopically insertable into one another. The upper end of a first tube portion (210, 310) is connected to one end of a ladder step (230, 330) and the other end of the ladder step (230, 330) is fastened to an upper end of a second tube portion (220, 320) having the same diameter as the first tube portion (210, 310). The first (210, 310) and second tube portions (220, 320) and the ladder step (230, 330) form a ladder section (200, 300), the tube sections of which being insertable into an adjacent ladder section comprising tube portions having a larger diameter, wherein the ladder sections may be mutually interlocked by interaction between pins (280) located in the ladder steps (230, 330) and openings provided in the tube portions of a neighboring ladder section. The pin (280) of a lowest ladder section (200) may be withdrawn from interaction with its respective opening in the tube portions (310, 320) of the neighboring ladder section (300) by manipulating a foot control (250) located below a low ladder step (240) of the lowest ladder section (200) and being arranged to be maneuvered by a foot of a user of the ladder (100).
    • 可折叠的梯子(100)包括具有各种直径并且可伸缩地彼此插入的多个管部分(210,220,310,320)。 第一管部分(210,310)的上端连接到梯子台阶(230,330)的一端,并且梯子台阶(230,330)的另一端紧固到第二管部分的上端 部分(220,320)具有与第一管部分(210,310)相同的直径。 第一(210,310)和第二管部分(220,320)和梯子台阶(230,330)形成梯形部分(200,300),其管部分可插入相邻的梯形部分,其包括管部分 具有较大的直径,其中梯形部分可以通过位于梯子台阶(230,330)中的销(280)与设置在相邻梯形部分的管部分中的开口之间的相互作用相互互锁。 最下层梯形部分(200)的销钉(280)可以通过操纵位于相邻梯子部分(300)的管部分(310,320)内的相应开口与相应梯形部分(300)的管部分 并且被布置成由梯子(100)的使用者的脚操纵。