A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PORTABLE LADDER WITH A STAND OFF DEVICE
The invention relates to an A-frame ladder, comprising a first telescopic ladder assembly and a second telescopic ladder assembly that are hingedly connected such that the second ladder assembly is pivotal about a hinge axis relative to the first ladder assembly between a straight configuration and an A- configuration. The second ladder assembly, at a top end thereof, is hingedly connected to stand off arms, such that the hinge axis is in line with the stile members of the second ladder assembly, and the hinge axis, in a longitudinal direction of the ladder assemblies, is spaced relative to a top rung of the first ladder assembly at a first pivot distance, and is spaced relative to a top rung of the second ladder assembly at a second pivot distance, wherein the second pivot distance is smaller than the first pivot distance.
PORTABLE LADDER WITH A STAND OFF DEVICE
The invention relates to an A-frame ladder, comprising a first telescopic ladder assembly and a second telescopic ladder assembly that are hingedly connected such that the second ladder assembly is pivotal about a hinge axis relative to the first ladder assembly between a straight configuration and an A- configuration. The second ladder assembly, at a top end thereof, is hingedly connected to stand off arms, such that the hinge axis is in line with the stile members of the second ladder assembly, and the hinge axis, in a longitudinal direction of the ladder assemblies, is spaced relative to a top rung of the first ladder assembly at a first pivot distance, and is spaced relative to a top rung of the second ladder assembly at a second pivot distance, wherein the second pivot distance is smaller than the first pivot distance.
PORTABLE LADDER WITH A STAND OFF DEVICE
TRAGBARE LEITER MIT EINER ABSTANDSVORRICHTUNG
ÉCHELLE PORTABLE COMPORTANT UN DISPOSITIF DE RECUL
LAMPE CASPAR BERNARD (author) / HOOIVELD MARCEL CORNELIS (author)
2024-07-31
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern