A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a step width expander which can be removably attached to a lifting device having a plurality of steps between columns such as ladders, stepladder, and tripods, can be attached to steps of different lengths and which can be stably operated regardless of where on the step surface.SOLUTION: The present invention comprises a first step 20 which has a substantially rectangular step plate portion, a pair of side plate portions extending substantially vertically downward from both long sides of the step plate portion, and a pair of projecting pieces extending in the direction approaching each other substantially perpendicularly from extending lower sides of the pair of side plate portions, a first abutment support 21 provided at an end of the first step 20 in the longitudinal direction, a second step 30 slidable in the longitudinal direction inside the first step 20, a second abutment support 31 provided at an end of the second step 30 in the longitudinal direction, and sliding locking means 40 for locking the sliding of the first step 20 and the second step 30 relative to each other.SELECTED DRAWING: Figure 1
【課題】梯子、脚立や三脚等の支柱間に複数の踏桟を有する昇降器具に着脱自在に取り付けられ、長さの異なる踏桟にも取り付け可能で、踏面のどの場所に乗っても安定して作業ができる踏桟幅拡張器具を提供すること。【解決手段】略矩形状の踏板部と、前記踏板部の両長辺からそれぞれ略垂直下方に延出する１対の側板部と、前記１対の側板部の延出下辺からそれぞれ略垂直に互いに近接する方向に延出する１対の突片部と、を有する第１踏台２０と、前記第１踏台２０の長手方向の端部に設けられた第１当接支持部２１と、前記第１踏台２０の内部を長手方向に摺動自在な第２踏台３０と、前記第２踏台３０の長手方向の端部に設けられた第２当接支持部３１と、前記第１踏台２０及び前記第２踏台３０の相互の摺動を係止する摺動係止手段４０と、を具備する。【選択図】図１
To provide a step width expander which can be removably attached to a lifting device having a plurality of steps between columns such as ladders, stepladder, and tripods, can be attached to steps of different lengths and which can be stably operated regardless of where on the step surface.SOLUTION: The present invention comprises a first step 20 which has a substantially rectangular step plate portion, a pair of side plate portions extending substantially vertically downward from both long sides of the step plate portion, and a pair of projecting pieces extending in the direction approaching each other substantially perpendicularly from extending lower sides of the pair of side plate portions, a first abutment support 21 provided at an end of the first step 20 in the longitudinal direction, a second step 30 slidable in the longitudinal direction inside the first step 20, a second abutment support 31 provided at an end of the second step 30 in the longitudinal direction, and sliding locking means 40 for locking the sliding of the first step 20 and the second step 30 relative to each other.SELECTED DRAWING: Figure 1
【課題】梯子、脚立や三脚等の支柱間に複数の踏桟を有する昇降器具に着脱自在に取り付けられ、長さの異なる踏桟にも取り付け可能で、踏面のどの場所に乗っても安定して作業ができる踏桟幅拡張器具を提供すること。【解決手段】略矩形状の踏板部と、前記踏板部の両長辺からそれぞれ略垂直下方に延出する１対の側板部と、前記１対の側板部の延出下辺からそれぞれ略垂直に互いに近接する方向に延出する１対の突片部と、を有する第１踏台２０と、前記第１踏台２０の長手方向の端部に設けられた第１当接支持部２１と、前記第１踏台２０の内部を長手方向に摺動自在な第２踏台３０と、前記第２踏台３０の長手方向の端部に設けられた第２当接支持部３１と、前記第１踏台２０及び前記第２踏台３０の相互の摺動を係止する摺動係止手段４０と、を具備する。【選択図】図１
STEP WIDTH EXPANDER
踏桟幅拡張器具
OKUDA TOSHIO (author)
2019-05-23
Patent
Electronic Resource
Japanese
IPC:
E06C
LADDERS
,
Leitern
Untersuchungen zur Gasvorwärmung mit einem Gas-Expander/Luft-Verdichter-Expander-System
| Tema Archive | 2007