Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To provide a locking device for an iron manhole cover that can lock an iron cover and close a hand hook hole at the same time, improve the sealing performance between the iron cover and a small cover for the hand hook hole, and prevent rainwater from entering a pipe.SOLUTION: A locking device for an iron manhole cover consists of a lock body rotatably attached to a lower part of an iron cover fitted into a receiving frame, a hand hook hole formed in the iron cover, a small closing cover rotatably attached to the lock body for closing the hand hook hole, and a hook receiver formed in the receiving frame. When the iron cover is opened, the lock body rotates about a pivot support in a direction in which the hook is removed from the hook receiver as the small closing cover is lowered. The locking device comprises guide means for guiding the upward and downward movement of the small closing cover, and hand hook hole sealing means for sealing the hand hook hole when the hand hook hole is closed.SELECTED DRAWING: Figure 1
【課題】鉄蓋の施錠と手鉤孔の閉塞とが同時に行えると共に、鉄蓋と手鉤孔用小蓋との間の密閉性を高め、管路への雨水の侵入を防ぐことのできるマンホール用鉄蓋の施錠装置を提供する。【解決手段】受枠内に嵌め込まれる鉄蓋の下部に回動自在に取り付けられたロック本体と、前記鉄蓋に形成された手鉤孔と、前記ロック本体に回動自在に取り付けられた、前記手鉤孔を閉塞する閉塞用小蓋と、前記受枠に形成されたフック受けとからなり、前記鉄蓋の開放時、前記ロック本体は、前記閉塞用小蓋の下降に伴って前記軸支部を中心として前記フックが前記フック受けから外れる方向に回動する、マンホール用鉄蓋の施錠装置において、前記閉塞用小蓋の昇降をガイドするガイド手段と、前記手鉤孔の閉塞時、前記手鉤孔を密閉する手鉤孔用シール手段を備えることを特徴とする。【選択図】図１
To provide a locking device for an iron manhole cover that can lock an iron cover and close a hand hook hole at the same time, improve the sealing performance between the iron cover and a small cover for the hand hook hole, and prevent rainwater from entering a pipe.SOLUTION: A locking device for an iron manhole cover consists of a lock body rotatably attached to a lower part of an iron cover fitted into a receiving frame, a hand hook hole formed in the iron cover, a small closing cover rotatably attached to the lock body for closing the hand hook hole, and a hook receiver formed in the receiving frame. When the iron cover is opened, the lock body rotates about a pivot support in a direction in which the hook is removed from the hook receiver as the small closing cover is lowered. The locking device comprises guide means for guiding the upward and downward movement of the small closing cover, and hand hook hole sealing means for sealing the hand hook hole when the hand hook hole is closed.SELECTED DRAWING: Figure 1
【課題】鉄蓋の施錠と手鉤孔の閉塞とが同時に行えると共に、鉄蓋と手鉤孔用小蓋との間の密閉性を高め、管路への雨水の侵入を防ぐことのできるマンホール用鉄蓋の施錠装置を提供する。【解決手段】受枠内に嵌め込まれる鉄蓋の下部に回動自在に取り付けられたロック本体と、前記鉄蓋に形成された手鉤孔と、前記ロック本体に回動自在に取り付けられた、前記手鉤孔を閉塞する閉塞用小蓋と、前記受枠に形成されたフック受けとからなり、前記鉄蓋の開放時、前記ロック本体は、前記閉塞用小蓋の下降に伴って前記軸支部を中心として前記フックが前記フック受けから外れる方向に回動する、マンホール用鉄蓋の施錠装置において、前記閉塞用小蓋の昇降をガイドするガイド手段と、前記手鉤孔の閉塞時、前記手鉤孔を密閉する手鉤孔用シール手段を備えることを特徴とする。【選択図】図１
LOCKING DEVICE FOR IRON MANHOLE COVER
マンホール用鉄蓋の施錠装置
HATA NOBUYUKI (Autor:in)
08.02.2024
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
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