A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FLOATATION PREVENTING DEVICE FOR UNDERGROUND STRUCTURE RECEIVING FRAME
PROBLEM TO BE SOLVED: To prevent floatation of an iron manhole cover along with a receiving frame, when pressure raised due to torrential rain and other reasons is exerted on the receiving frame of the iron manhole cover that is not fastened to a manhole frame body.SOLUTION: A floatation preventing device prevents floatation of a receiving frame that receives an iron cover installed above a manhole frame body by fastening the receiving frame with the manhole frame body, and includes: an anchor member 17 disposed on an inner surface of the manhole frame body and having a screw part; a downward engaging part 19 disposed on an inner surface of the receiving frame; a fastening member 20 having a part to be engaged with the engaging part in an upper part, and having a vertically long hole positioned at the position of the anchor member when the engaged part is engaged with the engaging part; a tightening member 24 having a screw part to be screwed with the anchor member, the tightening member fixing the fastening member to the manhole frame body by being screwed to the anchor member; and a washer 25 interposed between the fastening member and the tightening member, and having vertical displacement preventing means at a part in contact with the fastening member.SELECTED DRAWING: Figure 1
【課題】マンホールの躯体本体に締結されないマンホール鉄蓋の受枠に、集中豪雨等による圧力上昇が作用したときに、マンホール鉄蓋が受枠ごと浮上してしまうのを防止する。【解決手段】マンホールの躯体本体と、その上位に設置されている、鉄蓋を受け止める受枠とを締結することによって受枠の浮上を防止する装置について、マンホールの躯体本体の内側面に設けられた、ネジ部を有するアンカー部材１７と、受枠の内側面に設けられた下方への係合部１９と、上記係合部と係合する相手部を上部に有し、相手部を係合部に係合させたときにアンカー部材の位置に上下方向の長孔が位置する締結部材２０と、アンカー部材と螺合するネジ部を有し、アンカー部材との螺合によって締結部材をマンホールの躯体本体に固定する緊締部材２４と、締結部材と緊締部材の間に介在し、締結部材との接触部分における上下のずれ防止手段を備えたワッシャー２５とを具備して構成する。【選択図】 図１
FLOATATION PREVENTING DEVICE FOR UNDERGROUND STRUCTURE RECEIVING FRAME
PROBLEM TO BE SOLVED: To prevent floatation of an iron manhole cover along with a receiving frame, when pressure raised due to torrential rain and other reasons is exerted on the receiving frame of the iron manhole cover that is not fastened to a manhole frame body.SOLUTION: A floatation preventing device prevents floatation of a receiving frame that receives an iron cover installed above a manhole frame body by fastening the receiving frame with the manhole frame body, and includes: an anchor member 17 disposed on an inner surface of the manhole frame body and having a screw part; a downward engaging part 19 disposed on an inner surface of the receiving frame; a fastening member 20 having a part to be engaged with the engaging part in an upper part, and having a vertically long hole positioned at the position of the anchor member when the engaged part is engaged with the engaging part; a tightening member 24 having a screw part to be screwed with the anchor member, the tightening member fixing the fastening member to the manhole frame body by being screwed to the anchor member; and a washer 25 interposed between the fastening member and the tightening member, and having vertical displacement preventing means at a part in contact with the fastening member.SELECTED DRAWING: Figure 1
【課題】マンホールの躯体本体に締結されないマンホール鉄蓋の受枠に、集中豪雨等による圧力上昇が作用したときに、マンホール鉄蓋が受枠ごと浮上してしまうのを防止する。【解決手段】マンホールの躯体本体と、その上位に設置されている、鉄蓋を受け止める受枠とを締結することによって受枠の浮上を防止する装置について、マンホールの躯体本体の内側面に設けられた、ネジ部を有するアンカー部材１７と、受枠の内側面に設けられた下方への係合部１９と、上記係合部と係合する相手部を上部に有し、相手部を係合部に係合させたときにアンカー部材の位置に上下方向の長孔が位置する締結部材２０と、アンカー部材と螺合するネジ部を有し、アンカー部材との螺合によって締結部材をマンホールの躯体本体に固定する緊締部材２４と、締結部材と緊締部材の間に介在し、締結部材との接触部分における上下のずれ防止手段を備えたワッシャー２５とを具備して構成する。【選択図】 図１
FLOATATION PREVENTING DEVICE FOR UNDERGROUND STRUCTURE RECEIVING FRAME
地下構造物用受枠の浮上防止装置
INOUE TAKASHI (author)
2016-07-21
Patent
Electronic Resource
Japanese
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