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A platform for research: civil engineering, architecture and urbanism
FALLING OBJECT PROTECTIVE APPARATUS
To provide a falling object protective apparatus allowing an elevation angle of surface material to be simply changed even for one personnel work.SOLUTION: An engaging pin 34 having a lateral shaft part projected at least with a length penetrating through a chin resting material connection member 32 in right and left directions is attached on a base end part of a chin resting material 24. A guide groove 36 extending in a vertical direction and capable of passing the shaft part of the engaging pin 34 is formed in a chin resting material connection plate 32a, and at a plurality of predetermined height positions in the guide groove 36, engaging grooves 38 for elevation angle adjustment extending obliquely forward and downward are formed to allow the shaft part of the engaging pin 34 to be engaged with an edge of a deep bottom part of each of the engaging pins 38 so as to correspond to movement of a position of the base end part of the chin resting material 24 in accordance with a plurality of predetermined elevation angles of a diagonal member 14. The engaging groove 38 is formed such that a sharp angle R1 made with a shaft line L1 along a front edge of the guide groove 36 and a contour line L2 of an upper edge of the engaging groove 38 is formed smaller than a sharp angle R2 made with the shaft line L1 along the front edge of the guide groove 36 and a contour line L3 of a lower edge of the engaging groove 38.SELECTED DRAWING: Figure 2
【課題】一人作業でも簡単に面材の仰角を変更することができるアサガオ装置を提供する。【解決手段】頬杖材２４の基端部には、少なくとも頬杖材連結部材３２を左右方向に貫く長さにて突出した水平な軸部を有する係合ピン３４が取り付けられる。頬杖材連結プレート３２ａには、上下方向に延び且つ係合ピン３４の軸部を通し得る幅の案内溝３６が形成され、その案内溝３６における所定の複数の高さ位置には、斜め前下方に延びた仰角調節用の係止溝３８が形成されており、斜材１４の所定の複数の仰角に応じて頬杖材２４の基端部の位置が上下方向に移動するのに合わせて、係合ピン３４の軸部を各係止溝３８の奥底部の縁によって係止し得るようになされている。係止溝３８は、案内溝３６の前縁に沿う軸線Ｌ１と係止溝３８の上縁の外形線Ｌ２とが成す鋭角Ｒ１の大きさが、案内溝３６の前縁に沿う軸線Ｌ１と係止溝３８の下縁の外形線Ｌ３とが成す鋭角Ｒ２の大きさよりも小さくなるように形成される。【選択図】図２
FALLING OBJECT PROTECTIVE APPARATUS
To provide a falling object protective apparatus allowing an elevation angle of surface material to be simply changed even for one personnel work.SOLUTION: An engaging pin 34 having a lateral shaft part projected at least with a length penetrating through a chin resting material connection member 32 in right and left directions is attached on a base end part of a chin resting material 24. A guide groove 36 extending in a vertical direction and capable of passing the shaft part of the engaging pin 34 is formed in a chin resting material connection plate 32a, and at a plurality of predetermined height positions in the guide groove 36, engaging grooves 38 for elevation angle adjustment extending obliquely forward and downward are formed to allow the shaft part of the engaging pin 34 to be engaged with an edge of a deep bottom part of each of the engaging pins 38 so as to correspond to movement of a position of the base end part of the chin resting material 24 in accordance with a plurality of predetermined elevation angles of a diagonal member 14. The engaging groove 38 is formed such that a sharp angle R1 made with a shaft line L1 along a front edge of the guide groove 36 and a contour line L2 of an upper edge of the engaging groove 38 is formed smaller than a sharp angle R2 made with the shaft line L1 along the front edge of the guide groove 36 and a contour line L3 of a lower edge of the engaging groove 38.SELECTED DRAWING: Figure 2
【課題】一人作業でも簡単に面材の仰角を変更することができるアサガオ装置を提供する。【解決手段】頬杖材２４の基端部には、少なくとも頬杖材連結部材３２を左右方向に貫く長さにて突出した水平な軸部を有する係合ピン３４が取り付けられる。頬杖材連結プレート３２ａには、上下方向に延び且つ係合ピン３４の軸部を通し得る幅の案内溝３６が形成され、その案内溝３６における所定の複数の高さ位置には、斜め前下方に延びた仰角調節用の係止溝３８が形成されており、斜材１４の所定の複数の仰角に応じて頬杖材２４の基端部の位置が上下方向に移動するのに合わせて、係合ピン３４の軸部を各係止溝３８の奥底部の縁によって係止し得るようになされている。係止溝３８は、案内溝３６の前縁に沿う軸線Ｌ１と係止溝３８の上縁の外形線Ｌ２とが成す鋭角Ｒ１の大きさが、案内溝３６の前縁に沿う軸線Ｌ１と係止溝３８の下縁の外形線Ｌ３とが成す鋭角Ｒ２の大きさよりも小さくなるように形成される。【選択図】図２
FALLING OBJECT PROTECTIVE APPARATUS
アサガオ装置
NAKANO RYUJI (author) / HANAGURI KOJI (author)
2023-12-13
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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