A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TELESCOPIC LADDERS
The present invention relates to a telescopic ladder comprising a at least a top section, a bottom section, and at least one intermediate section, each section comprising a pair of parallel, laterally spaced stiles and a single tier of rungs extending between and interconnecting stiles, wherein the stiles of the top and intermediate sections being telescopically received in the stiles of the bottom section, with the tiers of rungs of the top and intermediate sections being arranged in parallel with each other and with the tier of rungs of the bottom section, wherein the bottom section comprises at least two rungs connected to stiles, wherein the rungs are horizontally spaced apart with a distance X from each other when in extended stage; the at least one intermediate section comprising stiles having a length Y and at least one rung that positioned at the upper end of the stiles; and a third section having a length Z and at least one rung positioned at the upper end of the stiles that area telescopically connected to the stiles of the at least one intermediate section, wherein length y is at least 600 mm, measured from the last rung of the bottom section to the first rung of the intermediate section when fully extended.
TELESCOPIC LADDERS
The present invention relates to a telescopic ladder comprising a at least a top section, a bottom section, and at least one intermediate section, each section comprising a pair of parallel, laterally spaced stiles and a single tier of rungs extending between and interconnecting stiles, wherein the stiles of the top and intermediate sections being telescopically received in the stiles of the bottom section, with the tiers of rungs of the top and intermediate sections being arranged in parallel with each other and with the tier of rungs of the bottom section, wherein the bottom section comprises at least two rungs connected to stiles, wherein the rungs are horizontally spaced apart with a distance X from each other when in extended stage; the at least one intermediate section comprising stiles having a length Y and at least one rung that positioned at the upper end of the stiles; and a third section having a length Z and at least one rung positioned at the upper end of the stiles that area telescopically connected to the stiles of the at least one intermediate section, wherein length y is at least 600 mm, measured from the last rung of the bottom section to the first rung of the intermediate section when fully extended.
TELESCOPIC LADDERS
AUSZIEHBARE LEITERN
ÉCHELLES TÉLESCOPIQUES
HOGERVORST MAARTEN BERTUS (author) / NIESSEN HERBERT-JAN (author)
2020-03-04
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern