A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LADDER CONNECTION STRUCTURE, LADDER, AND CONNECTED LADDER
To provide a ladder connection structure, ladders, and a connected ladder capable of sufficiently preventing dislocation and bend of columns to each other without reducing workability at the time of assembly.SOLUTION: A connection back plate 13 in a cross-sectional view orthogonal to a longitudinal direction of a connection structure U is bent to form a convex shape to sides of back plates 43, 53 and gaps between an outer surface of a connection side plate 14 and inner surfaces of side plates 44, 54, before the connection back plate 13 is fastened on the back plates 43, 53. Deformation of the connection back plate 13 in a cross-sectional view orthogonal to a longitudinal direction in a state the connection back plate 13 is fastened on the back plates 43, 53, in a linear shaped along the back plates 43, 53 allows the outer surface of the connection side plate 14 abuts the inner surfaces of the side plates 44, 54.SELECTED DRAWING: Figure 3
【課題】組立時の作業性の低下を招くことなく、支柱同士のずれや曲がりを充分に防止することが可能となる、梯子の連結構造、梯子、及び、連梯子を提供する。【解決手段】連結構造Ｕは、連結背板１３が背板４３・５３に締結される前において、長手方向に直交する断面視で連結背板１３は背板４３・５３の側に凸形状となるように湾曲して形成されるとともに、連結側板１４の外面と側板４４・５４の内面との間に間隙が形成され、連結背板１３が背板４３・５３に締結された状態において、長手方向に直交する断面視で連結背板１３が背板４３・５３に沿った直線形状に変形されることにより、連結側板１４の外面は側板４４・５４の内面に当接する。【選択図】図３
LADDER CONNECTION STRUCTURE, LADDER, AND CONNECTED LADDER
To provide a ladder connection structure, ladders, and a connected ladder capable of sufficiently preventing dislocation and bend of columns to each other without reducing workability at the time of assembly.SOLUTION: A connection back plate 13 in a cross-sectional view orthogonal to a longitudinal direction of a connection structure U is bent to form a convex shape to sides of back plates 43, 53 and gaps between an outer surface of a connection side plate 14 and inner surfaces of side plates 44, 54, before the connection back plate 13 is fastened on the back plates 43, 53. Deformation of the connection back plate 13 in a cross-sectional view orthogonal to a longitudinal direction in a state the connection back plate 13 is fastened on the back plates 43, 53, in a linear shaped along the back plates 43, 53 allows the outer surface of the connection side plate 14 abuts the inner surfaces of the side plates 44, 54.SELECTED DRAWING: Figure 3
【課題】組立時の作業性の低下を招くことなく、支柱同士のずれや曲がりを充分に防止することが可能となる、梯子の連結構造、梯子、及び、連梯子を提供する。【解決手段】連結構造Ｕは、連結背板１３が背板４３・５３に締結される前において、長手方向に直交する断面視で連結背板１３は背板４３・５３の側に凸形状となるように湾曲して形成されるとともに、連結側板１４の外面と側板４４・５４の内面との間に間隙が形成され、連結背板１３が背板４３・５３に締結された状態において、長手方向に直交する断面視で連結背板１３が背板４３・５３に沿った直線形状に変形されることにより、連結側板１４の外面は側板４４・５４の内面に当接する。【選択図】図３
LADDER CONNECTION STRUCTURE, LADDER, AND CONNECTED LADDER
梯子の連結構造、梯子、及び、連梯子
IZUMI KOJI (author)
2021-05-06
Patent
Electronic Resource
Japanese
IPC:
E06C
LADDERS
,
Leitern