Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CLOSING TOOL FOR ENGAGING HOLE OF COVER OPENING TOOL IN MANHOLE COVER
To provide a closing tool for an engaging hole of a cover opening tool in a manhole cover which can be mounted on the cover even when the engaging hole of the cover opening tool is small.SOLUTION: A body 2 of a closing tool 1 includes: an umbrella part 21 brought into close contact with an upper surface of a manhole cover 101; and an insertion part 22 inserted into an engaging hole 102. A screw shaft 3 vertically penetrates through the body 2, and enables rotary operation from an upper end. A nut member 4 is screwed with the screw shaft 3 in a mechanism holding space 23, and is vertically movable between a lower non-lock position and an upper lock position by rotation of the nut member. A lock member 5 is held so as to be non-rotatable around the screw shaft 3 between a pair of vertical guide planes 23 of the mechanism holding space 23, so as to be rotatable around a pivot pin 41, and so as to be rotatably up and down around a rotation fulcrum P, can penetrate through the engaging hole 102 when the nut member 4 is positioned at the non-lock position, and projects to an outer peripheral side of the insertion part 22 and prevents take-out from the cover 101 when being positioned at the lock position.SELECTED DRAWING: Figure 7
【課題】開蓋操作具の係合孔が小さくても、蓋に装着することができる開蓋操作具係合孔の閉塞具を提供する。【解決手段】閉塞具１の本体２は、マンホール蓋１０１の上面に密着する傘部２１と、係合孔１０２に挿入される挿入部２２とを具備する。ねじ軸３は、本体２を上下に貫通し、上端から回転操作可能である。ナット部材４は、 機構保持空間２３内でねじ軸３に螺合され、それの回転で下方の非ロック位置と上方のロック位置との間を上下動可能である。ロック部材５は、機構保持空間２３の一対の垂直ガイド平面２３ａ間に、ねじ軸３周りに回転不能、枢ピン４１周りに回動自在、回転支点Ｐ周りに起伏回動可能に保持され、ナット部材４が非ロック位置にあるとき係合孔１０２を通過可能、ロック位置にあるとき挿入部２２の外周側へ突出して蓋１０１からの抜き取りを阻止する。【選択図】図７
CLOSING TOOL FOR ENGAGING HOLE OF COVER OPENING TOOL IN MANHOLE COVER
To provide a closing tool for an engaging hole of a cover opening tool in a manhole cover which can be mounted on the cover even when the engaging hole of the cover opening tool is small.SOLUTION: A body 2 of a closing tool 1 includes: an umbrella part 21 brought into close contact with an upper surface of a manhole cover 101; and an insertion part 22 inserted into an engaging hole 102. A screw shaft 3 vertically penetrates through the body 2, and enables rotary operation from an upper end. A nut member 4 is screwed with the screw shaft 3 in a mechanism holding space 23, and is vertically movable between a lower non-lock position and an upper lock position by rotation of the nut member. A lock member 5 is held so as to be non-rotatable around the screw shaft 3 between a pair of vertical guide planes 23 of the mechanism holding space 23, so as to be rotatable around a pivot pin 41, and so as to be rotatably up and down around a rotation fulcrum P, can penetrate through the engaging hole 102 when the nut member 4 is positioned at the non-lock position, and projects to an outer peripheral side of the insertion part 22 and prevents take-out from the cover 101 when being positioned at the lock position.SELECTED DRAWING: Figure 7
【課題】開蓋操作具の係合孔が小さくても、蓋に装着することができる開蓋操作具係合孔の閉塞具を提供する。【解決手段】閉塞具１の本体２は、マンホール蓋１０１の上面に密着する傘部２１と、係合孔１０２に挿入される挿入部２２とを具備する。ねじ軸３は、本体２を上下に貫通し、上端から回転操作可能である。ナット部材４は、 機構保持空間２３内でねじ軸３に螺合され、それの回転で下方の非ロック位置と上方のロック位置との間を上下動可能である。ロック部材５は、機構保持空間２３の一対の垂直ガイド平面２３ａ間に、ねじ軸３周りに回転不能、枢ピン４１周りに回動自在、回転支点Ｐ周りに起伏回動可能に保持され、ナット部材４が非ロック位置にあるとき係合孔１０２を通過可能、ロック位置にあるとき挿入部２２の外周側へ突出して蓋１０１からの抜き取りを阻止する。【選択図】図７
CLOSING TOOL FOR ENGAGING HOLE OF COVER OPENING TOOL IN MANHOLE COVER
マンホール蓋の開蓋操作具係合孔の閉塞具
MIZUGUCHI KEIICHI (Autor:in)
20.04.2023
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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