Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention consists of a ladder (1) provided with a special form of ladder feet (3) or a special form of lower horizontal element (2) for ladders with or without a horizontal element on the underside, which ensure that the contact point of the ladder with the ground surface is displaced to the rear, so that the ladder is much less likely to slip, and the invention can also be applied on a sloping roof wherein the protruding ladder feet can rest on a horizontal portion, for instance a tile batten. The same effect is obtained by making the lower horizontal element of the ladder pivotable relative to the main plane of the ladder, whereby the support points also come to lie at a distance from the main plane of the ladder.
The invention consists of a ladder (1) provided with a special form of ladder feet (3) or a special form of lower horizontal element (2) for ladders with or without a horizontal element on the underside, which ensure that the contact point of the ladder with the ground surface is displaced to the rear, so that the ladder is much less likely to slip, and the invention can also be applied on a sloping roof wherein the protruding ladder feet can rest on a horizontal portion, for instance a tile batten. The same effect is obtained by making the lower horizontal element of the ladder pivotable relative to the main plane of the ladder, whereby the support points also come to lie at a distance from the main plane of the ladder.
GRIP LADDER
GRIFFLEITER
ÉCHELLE DE PRÉHENSION
FLEDDERUS WILLEM (Autor:in)
16.03.2016
Patent
Elektronische Ressource
Englisch
IPC:
E06C
LADDERS
,
Leitern
Foldable hand grip system of ladder for inspection of basement structure
| Europäisches Patentamt | 2024