Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To provide a handrail-cum-hook fitting for a ladder of a simple structure that enhances safety and appearance, and a lifting ladder for a bunk bed and others that uses the handrail-cum-hook fitting.SOLUTION: A handrail-cum-hook fitting for a ladder has: a handrail formation part 2 fitted on one end side of a pair of side plates 21 of the ladder, in such a way to extend linearly along a longitudinal direction of the side plate 21 and leaving a prescribed clearance from a front edge surface 21f of the side plate 21; a fitting surface 5 that comes in contact with the front edge surface 21f of the side plate 21 and is formed integrally with the handrail formation part 2, having a curved part 4 in between, the curved part being formed continuously at a bottom end of the handrail formation part 2; a lower connecting part 3 from which a nut 6 for positioning and bolt screwing protrudes for fixing on the fitting surface 5; and a horizontal extension part 9 formed integrally with the handrail formation part 2 and extending rearward in a horizontal direction, with a curved part 4 extended at a top end of the handrail formation part 2 in between. An end of the horizontal extension part 9 is bent downward in a hook shape to form a hook part 10, and includes an upper connecting part 7 at an intermediate part of the horizontal extension part 9 in a lengthwise direction, provided with a locking bolt insertion hole 11.
【課題】簡易な構造で、安全性が向上し、しかも美観の良い梯子用の手摺兼引掛金具およびその金具を用いた２段ベッド等の昇降用梯子を提供すること。【解決手段】梯子の一対の側板２１の一端側に、側板２１の前縁面２１ｆと所定の間隔をあけて、側板２１の長さ方向に直線状に延びるように取り付けられる手摺形成部２と、手摺形成部２と一体に形成されており、手摺形成部２の下端に形成された湾曲部４を介して連成されていて、側板２１の前縁面２１ｆと当接する取付面５を有する。取付面５に位置決め兼ボルト螺合用のナット６が突設して固定されている下連結部３と、手摺形成部２と一体に形成されており、手摺形成部２の上端に延設された湾曲部４を介して水平方向後方側へ延びる水平延長部９を有する。水平延長部９の先端は鉤形に下方へ曲成されて引掛部１０が形成されており、水平延長部９の長さ方向途中部に係止ボルト挿通孔１１を備える上連結部７を含む。【選択図】図１
PROBLEM TO BE SOLVED: To provide a handrail-cum-hook fitting for a ladder of a simple structure that enhances safety and appearance, and a lifting ladder for a bunk bed and others that uses the handrail-cum-hook fitting.SOLUTION: A handrail-cum-hook fitting for a ladder has: a handrail formation part 2 fitted on one end side of a pair of side plates 21 of the ladder, in such a way to extend linearly along a longitudinal direction of the side plate 21 and leaving a prescribed clearance from a front edge surface 21f of the side plate 21; a fitting surface 5 that comes in contact with the front edge surface 21f of the side plate 21 and is formed integrally with the handrail formation part 2, having a curved part 4 in between, the curved part being formed continuously at a bottom end of the handrail formation part 2; a lower connecting part 3 from which a nut 6 for positioning and bolt screwing protrudes for fixing on the fitting surface 5; and a horizontal extension part 9 formed integrally with the handrail formation part 2 and extending rearward in a horizontal direction, with a curved part 4 extended at a top end of the handrail formation part 2 in between. An end of the horizontal extension part 9 is bent downward in a hook shape to form a hook part 10, and includes an upper connecting part 7 at an intermediate part of the horizontal extension part 9 in a lengthwise direction, provided with a locking bolt insertion hole 11.
【課題】簡易な構造で、安全性が向上し、しかも美観の良い梯子用の手摺兼引掛金具およびその金具を用いた２段ベッド等の昇降用梯子を提供すること。【解決手段】梯子の一対の側板２１の一端側に、側板２１の前縁面２１ｆと所定の間隔をあけて、側板２１の長さ方向に直線状に延びるように取り付けられる手摺形成部２と、手摺形成部２と一体に形成されており、手摺形成部２の下端に形成された湾曲部４を介して連成されていて、側板２１の前縁面２１ｆと当接する取付面５を有する。取付面５に位置決め兼ボルト螺合用のナット６が突設して固定されている下連結部３と、手摺形成部２と一体に形成されており、手摺形成部２の上端に延設された湾曲部４を介して水平方向後方側へ延びる水平延長部９を有する。水平延長部９の先端は鉤形に下方へ曲成されて引掛部１０が形成されており、水平延長部９の長さ方向途中部に係止ボルト挿通孔１１を備える上連結部７を含む。【選択図】図１
HANDRAIL-CUM-HOOK FITTING FOR LADDER
梯子用の手摺兼引掛金具
KAMEI HIROKI (Autor:in)
12.01.2016
Patent
Elektronische Ressource
Japanisch