A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To make it possible to regulate an operation member of a ladder body which is at an upper side position in a lock releasing direction when a ladder takes an extended state.SOLUTION: A ladder available as a stepladder in which a pair of ladder bodies 2 are configured to take a stepladder state and a ladder-extended state. Each of the ladder bodies 2 includes: a pair of left and right elastic bodies 5; crosspiece members 6 arranged in a multi-stage manner; a lock mechanism 7 for fixing an insertion body 9 to a mantle 8 at an extended position; operation means 93 having an operation member 69 that causes each lock mechanism 7 to move up and down for its lock operation and lock release operation. The operation member 69 is extended from the vicinity of the lower crosspiece member 6 to the vicinity of the upper crosspiece member 6, the upper part of the operation member 69 is provided with an operation part 70 to which a force for moving the operation member 69 up and down is applied, and the upper ladder body 2 in the ladder-extended state is provided with stopper means 201 for preventing the movement of the operation member 69 for unlocking the lock mechanism 7.SELECTED DRAWING: Figure 1
【課題】 展開梯子姿勢時に上側になる梯子体の操作部材をロック解除方向に移動するのを規制できるようにする。【解決手段】 一対の梯子体２が脚立姿勢と展開梯子姿勢とになる梯子兼用脚立において、梯子体２は、左右一対の伸縮体５と、多段の桟部材６と、挿入体９を伸縮した位置で外套体８に対して固定するロック機構７と、各ロック機構７を上下動によりロック動作及びロック解除動作させる操作部材６９を有する操作手段９３とが備えられている。操作部材６９は下方の桟部材６近傍から上方の桟部材６近傍まで延設されていて、操作部材６９の上部に操作部材６９を上下動させるための力が加えられる操作部７０が設けられており、展開梯子姿勢時に上側になる梯子体２には、ロック機構７をロック解除させる操作部材６９の移動を阻止するストッパ手段２０１が設けられている。【選択図】図１
To make it possible to regulate an operation member of a ladder body which is at an upper side position in a lock releasing direction when a ladder takes an extended state.SOLUTION: A ladder available as a stepladder in which a pair of ladder bodies 2 are configured to take a stepladder state and a ladder-extended state. Each of the ladder bodies 2 includes: a pair of left and right elastic bodies 5; crosspiece members 6 arranged in a multi-stage manner; a lock mechanism 7 for fixing an insertion body 9 to a mantle 8 at an extended position; operation means 93 having an operation member 69 that causes each lock mechanism 7 to move up and down for its lock operation and lock release operation. The operation member 69 is extended from the vicinity of the lower crosspiece member 6 to the vicinity of the upper crosspiece member 6, the upper part of the operation member 69 is provided with an operation part 70 to which a force for moving the operation member 69 up and down is applied, and the upper ladder body 2 in the ladder-extended state is provided with stopper means 201 for preventing the movement of the operation member 69 for unlocking the lock mechanism 7.SELECTED DRAWING: Figure 1
【課題】 展開梯子姿勢時に上側になる梯子体の操作部材をロック解除方向に移動するのを規制できるようにする。【解決手段】 一対の梯子体２が脚立姿勢と展開梯子姿勢とになる梯子兼用脚立において、梯子体２は、左右一対の伸縮体５と、多段の桟部材６と、挿入体９を伸縮した位置で外套体８に対して固定するロック機構７と、各ロック機構７を上下動によりロック動作及びロック解除動作させる操作部材６９を有する操作手段９３とが備えられている。操作部材６９は下方の桟部材６近傍から上方の桟部材６近傍まで延設されていて、操作部材６９の上部に操作部材６９を上下動させるための力が加えられる操作部７０が設けられており、展開梯子姿勢時に上側になる梯子体２には、ロック機構７をロック解除させる操作部材６９の移動を阻止するストッパ手段２０１が設けられている。【選択図】図１
LADDER AVAILABLE AS STEPLADDER
梯子兼用脚立
ARATA YUKITO (author)
2021-01-14
Patent
Electronic Resource
Japanese
IPC:
E06C
LADDERS
,
Leitern
TELESCOPIC LOCKING MECHANISM OF TELESCOPIC LEG DEVICE IN LADDER AVAILABLE AS STEPLADDER
| European Patent Office | 2019