发明名称 Self-locking stabiliser for step ladder or scaffolding
摘要 The invention relates to a device for improving the stability of a step ladder 1 or the like and is of the type comprising at least one movable stabilising foot 5 capable of being locked when set on the ground. The stabilising foot 5 comprises a bent tube 6 whose free end 7 reaches down to the ground and a collar 9 fixed to the other end 8 of the bent tube 6 where it slides on a vertical post 2 of the step ladder 1. The collar 9 can be locked by friction on the vertical post 2 when the free end 7 is set on the ground. The stabilising foot 5 is secured in the rest position on a member 3a, 3b of the step ladder 1 by a stud 11a, 11b engaging with the free end 7 of the bent tube 6. In the working position the stabilising foot 5 is secured in a predetermined horizontal direction. <IMAGE>
申请公布号 FR2648995(A1) 申请公布日期 1991.01.04
申请号 FR19890008642 申请日期 1989.06.28
申请人 RETOTUB 发明人 MICHEL PENIN
分类号 E04G1/24;E04G5/02 主分类号 E04G1/24
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