A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEP LADDER, WIDENING STRUCTURE FOR LADDER BODY, AND MANUFACTURING METHOD FOR LADDER BODY
PROBLEM TO BE SOLVED: To provide even more convenient and compact step ladder, expansion leg structure for a ladder body, and manufacturing method for the expansion leg.SOLUTION: A step ladder includes a laterally oriented tubular fixing tube fixed between a pair of support posts on right and left of a ladder body, a tubular first expansion/contraction tube housed in the fixing tube from an opening of the fixing tube, the first expansion/contraction tube expanding from and contracting into the opening, and a tubular second expansion/contraction tube housed in the fixing tube from the other opening of the fixing tube, the second expansion/contraction tube expanding from and contracting into the other opening. The step ladder has the first expansion/contraction tube and the second expansion/contraction tube nested and overlapped with each other inside the fixing tube, at least partially of the first expansion/contraction tube and the second expansion/contraction tube.SELECTED DRAWING: Figure 2
【課題】より使い勝手がよくコンパクトな脚立、梯子体の伸縮脚構造、および、伸縮脚の製造方法を提供する。【解決手段】梯子体の左右一対の支柱の間に左右に配向して固定された管状の固定管と、前記固定管の一方の開口から管内に収容され当該一方の開口から伸縮自在の管状の第１伸縮管と、前記固定管の他方の開口から管内に収容され当該他方の開口から伸縮自在の管状の第２伸縮管と、を備え、前記第１伸縮管と前記第２伸縮管は、前記固定管内において、これら前記第１伸縮管と前記第２伸縮管の少なくとも一部が互いに入れ子状に重複した状態で収容可能であることを特徴とする脚立。【選択図】図２
STEP LADDER, WIDENING STRUCTURE FOR LADDER BODY, AND MANUFACTURING METHOD FOR LADDER BODY
PROBLEM TO BE SOLVED: To provide even more convenient and compact step ladder, expansion leg structure for a ladder body, and manufacturing method for the expansion leg.SOLUTION: A step ladder includes a laterally oriented tubular fixing tube fixed between a pair of support posts on right and left of a ladder body, a tubular first expansion/contraction tube housed in the fixing tube from an opening of the fixing tube, the first expansion/contraction tube expanding from and contracting into the opening, and a tubular second expansion/contraction tube housed in the fixing tube from the other opening of the fixing tube, the second expansion/contraction tube expanding from and contracting into the other opening. The step ladder has the first expansion/contraction tube and the second expansion/contraction tube nested and overlapped with each other inside the fixing tube, at least partially of the first expansion/contraction tube and the second expansion/contraction tube.SELECTED DRAWING: Figure 2
【課題】より使い勝手がよくコンパクトな脚立、梯子体の伸縮脚構造、および、伸縮脚の製造方法を提供する。【解決手段】梯子体の左右一対の支柱の間に左右に配向して固定された管状の固定管と、前記固定管の一方の開口から管内に収容され当該一方の開口から伸縮自在の管状の第１伸縮管と、前記固定管の他方の開口から管内に収容され当該他方の開口から伸縮自在の管状の第２伸縮管と、を備え、前記第１伸縮管と前記第２伸縮管は、前記固定管内において、これら前記第１伸縮管と前記第２伸縮管の少なくとも一部が互いに入れ子状に重複した状態で収容可能であることを特徴とする脚立。【選択図】図２
STEP LADDER, WIDENING STRUCTURE FOR LADDER BODY, AND MANUFACTURING METHOD FOR LADDER BODY
脚立、梯子体の拡幅構造、および、梯子体の製造方法
NAKAO KIMIYO (author) / NAKAO MOTOHIRO (author)
2016-05-16
Patent
Electronic Resource
Japanese
IPC:
E06C
LADDERS
,
Leitern
| European Patent Office | 2016