Telesteps Ab

Bioprocess Control Sweden Ab

Jens Bernhardsson

Ulrik Gejervall

Stina Karlsson

Henrik Edvardsson

Niklas Ekstrand

Carl-Johan Nelson

Magnus Göransson

Jacob Elander

A ladder tube () for use in a ladder section of a collapsible ladder () is provided. The collapsible ladder comprises several ladder sections (-), where each ladder section comprises two ladder tubes () arranged parallel to each other and interconnected by a rung () to form the respective ladder section, and where each ladder tube () is telescopically inserted into a ladder tube () of a lower section to form the collapsible ladder (). The ladder tube () is characterized in that it has a cross-sectional shape comprising at least one straight section () which at each end is connected at an angle larger than 90 degrees to at least one additional section () of the cross-sectional shape.

Ladder tube for a collapsible ladder

A rung for use in a ladder section of a collapsible ladder () is provided. The collapsible ladder comprises several ladder sections (-), where each ladder section comprises two ladder tubes () arranged parallel to each other and interconnected by the rung () to form the respective ladder section, and where each ladder tube () is telescopically inserted into a ladder tube () of a lower ladder section to form the collapsible ladder (), the rung () comprising a main section (), a first bracket section () and a second bracket section (), wherein the first and second bracket sections () are arranged at each end of the rung () to receive the respective ladder tube (). The rung () is characterized in that the main section () and the first and second bracket sections () are provided as an integrated unit.

Growing community of inventors

Tranås, Sweden

Jens Bernhardsson