A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To achieve that by folding a handrail with respect to a support and moving it downward, the front-rear dimension and the vertical dimension in an unused state can be made compact.SOLUTION: A ladder includes a ladder main body 5 in which left and right columns 3 are connected by a tread plate 4, and left and right handrails T connected to each of the left and right columns 3 via a support 6. Each of the left and right handrails has a support shaft portion 8 along the column and a grip portion 9 separated from the column. The support has a holder 11 that holds the support shaft portion so that it can rotate around the shaft center and move in the direction of the shaft center, and a lock member 12 penetrating through a holder hole 11a formed in the holder and a shaft hole P formed in the support shaft portion. The support shaft portion of the handrail is formed with a shaft hole during use in which the lock member is penetrated in a use state U where the handrail is erected forward from the column and the upper part of the handrail protrudes upward from the column, and an unused shaft hole Pf through which the lock member penetrates when the handrail is tilted along the ladder main body and moved downward from the used state.SELECTED DRAWING: Figure 1
【課題】手摺を支柱に対して折り畳みかつ下方移動することにより、不使用状態での前後寸法及び上下寸法をコンパクトにできる。【解決手段】左右支柱３を踏板４で連結した梯子本体５と、左右各支柱３に支持具６を介して連結した左右手摺Ｔとを有する。左右各手摺は、支柱に沿う支軸部８と、支柱から離れている把持部９とを有する。支持具は支軸部を軸心廻り回動可能にかつ軸心方向移動可能に保持するホルダ１１と、ホルダに形成したホルダ孔１１ａと支軸部に形成した軸孔Ｐとに貫通するロック部材１２とを有する。手摺の支軸部には、手摺を支柱から前方へ立設しかつその上部が支柱から上方へ突出した使用状態Ｕのときにロック部材が貫通される使用時軸孔と、手摺を梯子本体に沿うように倒しかつ使用状態から下方へ移動した不使用状態のときにロック部材が貫通される不使用時軸孔Ｐｆとを形成している。【選択図】図１
To achieve that by folding a handrail with respect to a support and moving it downward, the front-rear dimension and the vertical dimension in an unused state can be made compact.SOLUTION: A ladder includes a ladder main body 5 in which left and right columns 3 are connected by a tread plate 4, and left and right handrails T connected to each of the left and right columns 3 via a support 6. Each of the left and right handrails has a support shaft portion 8 along the column and a grip portion 9 separated from the column. The support has a holder 11 that holds the support shaft portion so that it can rotate around the shaft center and move in the direction of the shaft center, and a lock member 12 penetrating through a holder hole 11a formed in the holder and a shaft hole P formed in the support shaft portion. The support shaft portion of the handrail is formed with a shaft hole during use in which the lock member is penetrated in a use state U where the handrail is erected forward from the column and the upper part of the handrail protrudes upward from the column, and an unused shaft hole Pf through which the lock member penetrates when the handrail is tilted along the ladder main body and moved downward from the used state.SELECTED DRAWING: Figure 1
【課題】手摺を支柱に対して折り畳みかつ下方移動することにより、不使用状態での前後寸法及び上下寸法をコンパクトにできる。【解決手段】左右支柱３を踏板４で連結した梯子本体５と、左右各支柱３に支持具６を介して連結した左右手摺Ｔとを有する。左右各手摺は、支柱に沿う支軸部８と、支柱から離れている把持部９とを有する。支持具は支軸部を軸心廻り回動可能にかつ軸心方向移動可能に保持するホルダ１１と、ホルダに形成したホルダ孔１１ａと支軸部に形成した軸孔Ｐとに貫通するロック部材１２とを有する。手摺の支軸部には、手摺を支柱から前方へ立設しかつその上部が支柱から上方へ突出した使用状態Ｕのときにロック部材が貫通される使用時軸孔と、手摺を梯子本体に沿うように倒しかつ使用状態から下方へ移動した不使用状態のときにロック部材が貫通される不使用時軸孔Ｐｆとを形成している。【選択図】図１
LIFTING LADDER WITH HANDRAIL
手摺付き昇降梯子
ARATA YUKITO (author)
2021-09-16
Patent
Electronic Resource
Japanese
IPC:
E06C
LADDERS
,
Leitern