Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HANDRAIL FOR MANHOLE
PROBLEM TO BE SOLVED: To provide a handrail for a manhole which does not require to modify the manhole and also can be easily handled.SOLUTION: A handrail for a manhole includes: an engaging part 22 engaged with a step 102 of a manhole 100; a contact part 23 in contact with an internal surface 101a of a hole body 101 in a state where the engaging part 22 is engaged with the step 102; a handrail part 21 extending upward in a state where the contact part 23 is contacted with the internal surface 101a of the hole body 101 while the engaging part 22 is engaged with the step 102; and a chain lever hoist 3 keeping the upright state of the handrail part 21 after pressurizing the contact part 23 onto the internal surface 101a of the hole body 101 by pulling up the handrail part 21 in a state where an eyebolt 33 is screwed into a bolthole 103 of the manhole 100 by connecting a first hook 31 with the handrail part 21.
【課題】 マンホールの改造が不要で、しかも、取り扱いが容易なマンホール用手摺りを提供する。【解決手段】 マンホール１００のステップ１０２に係合する係合部２２と、係合部２２がステップ１０２に係合した状態で、ホール本体１０１の内壁面１０１ａに当接する当接部２３と、係合部２２がステップ１０２に係合して当接部２３がホール本体１０１の内壁面１０１ａに当接した状態で、上方に延びる手摺り部２１と、第１のフック３１が手摺り部２１に接続されアイボルト３３がマンホール１００のボルト穴１０３に螺合した状態で、手摺り部２１を引き寄せることで当接部２３をホール本体１０１の内壁面１０１ａに押圧させて、手摺り部２１の直立状態を保持するチェーンレバーホイスト３と、を備える。【選択図】 図１
HANDRAIL FOR MANHOLE
PROBLEM TO BE SOLVED: To provide a handrail for a manhole which does not require to modify the manhole and also can be easily handled.SOLUTION: A handrail for a manhole includes: an engaging part 22 engaged with a step 102 of a manhole 100; a contact part 23 in contact with an internal surface 101a of a hole body 101 in a state where the engaging part 22 is engaged with the step 102; a handrail part 21 extending upward in a state where the contact part 23 is contacted with the internal surface 101a of the hole body 101 while the engaging part 22 is engaged with the step 102; and a chain lever hoist 3 keeping the upright state of the handrail part 21 after pressurizing the contact part 23 onto the internal surface 101a of the hole body 101 by pulling up the handrail part 21 in a state where an eyebolt 33 is screwed into a bolthole 103 of the manhole 100 by connecting a first hook 31 with the handrail part 21.
【課題】 マンホールの改造が不要で、しかも、取り扱いが容易なマンホール用手摺りを提供する。【解決手段】 マンホール１００のステップ１０２に係合する係合部２２と、係合部２２がステップ１０２に係合した状態で、ホール本体１０１の内壁面１０１ａに当接する当接部２３と、係合部２２がステップ１０２に係合して当接部２３がホール本体１０１の内壁面１０１ａに当接した状態で、上方に延びる手摺り部２１と、第１のフック３１が手摺り部２１に接続されアイボルト３３がマンホール１００のボルト穴１０３に螺合した状態で、手摺り部２１を引き寄せることで当接部２３をホール本体１０１の内壁面１０１ａに押圧させて、手摺り部２１の直立状態を保持するチェーンレバーホイスト３と、を備える。【選択図】 図１
HANDRAIL FOR MANHOLE
マンホール用手摺り
RYONO SEIJI (Autor:in) / ISHITANI NAOKI (Autor:in)
16.11.2015
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Sliding type roof manhole cover plate and handrail linkage device and working method
| Europäisches Patentamt | 2023