Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A collapsible ladder assembly for mounting to a trailer comprises a ladder portion, a trailer mounting bracket, two extensible arms extending between connection with the ladder portion and connection with the trailer mounting bracket. The assembly has a first pivotal connection coupling the ladder portion to each of the two extensible arms a second pivotal connection coupling the ladder portion to each of the extensible arms, wherein an axis of the first pivotal connection is substantially normal to an axis of the second pivotal connection; and a third pivotal connection coupling each of the two extensible arms to the trailer mounting bracket.
A collapsible ladder assembly for mounting to a trailer comprises a ladder portion, a trailer mounting bracket, two extensible arms extending between connection with the ladder portion and connection with the trailer mounting bracket. The assembly has a first pivotal connection coupling the ladder portion to each of the two extensible arms a second pivotal connection coupling the ladder portion to each of the extensible arms, wherein an axis of the first pivotal connection is substantially normal to an axis of the second pivotal connection; and a third pivotal connection coupling each of the two extensible arms to the trailer mounting bracket.
Horizontal collapsing ladder
EBBENGA MARK (Autor:in)
28.03.2024
Patent
Elektronische Ressource
Englisch