Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three section extension ladder and method
An extension ladder including a base section having two side rails with rungs spanning horizontally between them. The extension ladder including an intermediate fly section having two side rails with rungs spanning horizontally between them. The intermediate fly section slidably attached to the base section. The extension ladder including a top fly section having two side rails with rungs spanning horizontally between them, the top fly section sliding attached to the intermediate fly section with the intermediate fly section disposed between the base and the top fly section. The extension ladder including a handle having a first strap portion attached to the base section having a first buckle portion, and a second strap portion attached to the top fly section having a second buckle portion that engages with the first buckle portion when the base section, intermediate fly section and top fly section are in a folded state. A method of moving an extension ladder.
Three section extension ladder and method
An extension ladder including a base section having two side rails with rungs spanning horizontally between them. The extension ladder including an intermediate fly section having two side rails with rungs spanning horizontally between them. The intermediate fly section slidably attached to the base section. The extension ladder including a top fly section having two side rails with rungs spanning horizontally between them, the top fly section sliding attached to the intermediate fly section with the intermediate fly section disposed between the base and the top fly section. The extension ladder including a handle having a first strap portion attached to the base section having a first buckle portion, and a second strap portion attached to the top fly section having a second buckle portion that engages with the first buckle portion when the base section, intermediate fly section and top fly section are in a folded state. A method of moving an extension ladder.
Three section extension ladder and method
GEALY PRESTON L (Autor:in) / MCINTIRE KEVIN L (Autor:in) / BEGGS ROBERT D (Autor:in)
29.03.2022
Patent
Elektronische Ressource
Englisch
IPC:
E06C
LADDERS
,
Leitern
Multi-section carbon fiber fire-fighting extension ladder
| Europäisches Patentamt | 2021