A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a fall prevention hook which enhances the safety and efficiency of concrete form demolition work after the construction of a concrete slab, and can be inexpensively manufactured.SOLUTION: This fall prevention hook 1 is composed of a steel-made rod-shaped member 2 in which a locking part 2a is formed so as to be orthogonally bent at its tip side, and a male screw part 2b is formed at a base end side, and a synthetic resin-made cap 3 which is screwed to one end of the rod-shaped member 2. The cap 3 is composed of a columnar shaft body 4 in which a screw hole 4a into which a male screw part 2b of the rod-shaped member 2 is screwed is formed in an axial direction, a flange 5 which is arranged at an end part at a side at which the screw hole 4a of the shaft body 4 is not formed so as to be orthogonal to the axial direction, and a tapered rib 6 which is formed in a wedge shape in a side view, and arranged at an external peripheral face of the shaft body 4.SELECTED DRAWING: Figure 1
【課題】コンクリートスラブ施工後における型枠解体作業の安全性と効率を高めるとともに安価に製造することが可能な落下防止フックを提供する。【解決手段】本発明の落下防止フック１は、先端側を直角に折り曲げるようにして係止部２ａが形成されるとともに、基端側に雄ネジ部２ｂが形成された鋼製の棒状部材２と、この棒状部材２の一端に螺着される合成樹脂製のキャップ３からなる。キャップ３は、棒状部材２の雄ネジ部２ｂが螺入されるネジ孔４ａが軸方向に設けられた円柱状の軸体４と、この軸体４のネジ孔４ａが設けられていない側の端部に軸方向と直交するように設けられるフランジ５と、側面視楔状に形成されて軸体４の外周面に設けられるテーパーリブ６からなる。【選択図】図１
PROBLEM TO BE SOLVED: To provide a fall prevention hook which enhances the safety and efficiency of concrete form demolition work after the construction of a concrete slab, and can be inexpensively manufactured.SOLUTION: This fall prevention hook 1 is composed of a steel-made rod-shaped member 2 in which a locking part 2a is formed so as to be orthogonally bent at its tip side, and a male screw part 2b is formed at a base end side, and a synthetic resin-made cap 3 which is screwed to one end of the rod-shaped member 2. The cap 3 is composed of a columnar shaft body 4 in which a screw hole 4a into which a male screw part 2b of the rod-shaped member 2 is screwed is formed in an axial direction, a flange 5 which is arranged at an end part at a side at which the screw hole 4a of the shaft body 4 is not formed so as to be orthogonal to the axial direction, and a tapered rib 6 which is formed in a wedge shape in a side view, and arranged at an external peripheral face of the shaft body 4.SELECTED DRAWING: Figure 1
【課題】コンクリートスラブ施工後における型枠解体作業の安全性と効率を高めるとともに安価に製造することが可能な落下防止フックを提供する。【解決手段】本発明の落下防止フック１は、先端側を直角に折り曲げるようにして係止部２ａが形成されるとともに、基端側に雄ネジ部２ｂが形成された鋼製の棒状部材２と、この棒状部材２の一端に螺着される合成樹脂製のキャップ３からなる。キャップ３は、棒状部材２の雄ネジ部２ｂが螺入されるネジ孔４ａが軸方向に設けられた円柱状の軸体４と、この軸体４のネジ孔４ａが設けられていない側の端部に軸方向と直交するように設けられるフランジ５と、側面視楔状に形成されて軸体４の外周面に設けられるテーパーリブ６からなる。【選択図】図１
FALL PREVENTION HOOK
落下防止フック
NAKAMURA MAKOTO (author)
2017-07-06
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
Automatic detachable safety hook and fall prevention method using the same
European Patent Office | 2021