A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a gate opening/closing device which can make a gate body ascend/descend without providing a mechanism whose angle changes three-dimensionally in looseness detection means.SOLUTION: A gate opening/closing device includes: driving means rotating a drum wound with a wire which is bridged to a gate body side sheave, to make a gate body ascend/descend; and looseness detection means 14 detecting looseness of the wire based on a load generated on the wire. The looseness detection means 14 comprises: a moving body 55 moving upwardly in a longer direction of a region J between the gate body side sheave of the wire and the looseness detection means 14 by looseness generated in the wire; a detection portion 58 detecting movement of the moving body 55; a force applying portion 48 applying an upward force in the longer direction of the region J of the wire to the moving body 55; and a support mechanism 60 supporting the moving body 55 and the force applying portion 48. A position of the moving body 55 in a rotation axis of the gate body side sheave is equal to that of the gate body side sheave. The support mechanism 60 rotates together with the moving body 55 and the force applying portion 48 around a rotation axis Q parallel to the rotation axis P of the gate body side sheave.SELECTED DRAWING: Figure 4
【課題】緩み検出手段に３次元的に角度変化する機構を設けずに門体の昇降を可能とする門開閉装置を提供する。【解決手段】門体側シーブに掛け渡されたワイヤが巻き付けられたドラムを回転させて門体を昇降させる駆動手段と、ワイヤに生じている負荷を基にワイヤの緩みを検出する緩み検出手段１４とを有する門開閉装置において、緩み検出手段１４は、ワイヤに緩みが生じることで、ワイヤの門体側シーブ及び緩み検出手段１４間の領域Ｊの長手方向上向きに移動する移動体５５と、移動体５５の移動を検知する検知部５８と、移動体５５にワイヤの領域Ｊの長手方向上向きの力を作用させる力付与部４８と、移動体５５及び力付与部４８を支持する支持機構６０とを備え、移動体５５は、門体側シーブの回転軸方向の位置が門体側シーブと等しく、支持機構６０は、門体側シーブの回転軸Ｐに平行な回転軸Ｑを中心に移動体５５及び力付与部４８と共に回転する。【選択図】図４
To provide a gate opening/closing device which can make a gate body ascend/descend without providing a mechanism whose angle changes three-dimensionally in looseness detection means.SOLUTION: A gate opening/closing device includes: driving means rotating a drum wound with a wire which is bridged to a gate body side sheave, to make a gate body ascend/descend; and looseness detection means 14 detecting looseness of the wire based on a load generated on the wire. The looseness detection means 14 comprises: a moving body 55 moving upwardly in a longer direction of a region J between the gate body side sheave of the wire and the looseness detection means 14 by looseness generated in the wire; a detection portion 58 detecting movement of the moving body 55; a force applying portion 48 applying an upward force in the longer direction of the region J of the wire to the moving body 55; and a support mechanism 60 supporting the moving body 55 and the force applying portion 48. A position of the moving body 55 in a rotation axis of the gate body side sheave is equal to that of the gate body side sheave. The support mechanism 60 rotates together with the moving body 55 and the force applying portion 48 around a rotation axis Q parallel to the rotation axis P of the gate body side sheave.SELECTED DRAWING: Figure 4
【課題】緩み検出手段に３次元的に角度変化する機構を設けずに門体の昇降を可能とする門開閉装置を提供する。【解決手段】門体側シーブに掛け渡されたワイヤが巻き付けられたドラムを回転させて門体を昇降させる駆動手段と、ワイヤに生じている負荷を基にワイヤの緩みを検出する緩み検出手段１４とを有する門開閉装置において、緩み検出手段１４は、ワイヤに緩みが生じることで、ワイヤの門体側シーブ及び緩み検出手段１４間の領域Ｊの長手方向上向きに移動する移動体５５と、移動体５５の移動を検知する検知部５８と、移動体５５にワイヤの領域Ｊの長手方向上向きの力を作用させる力付与部４８と、移動体５５及び力付与部４８を支持する支持機構６０とを備え、移動体５５は、門体側シーブの回転軸方向の位置が門体側シーブと等しく、支持機構６０は、門体側シーブの回転軸Ｐに平行な回転軸Ｑを中心に移動体５５及び力付与部４８と共に回転する。【選択図】図４
GATE OPENING/CLOSING DEVICE
門開閉装置
MAEDA TORU (author)
2021-05-20
Patent
Electronic Resource
Japanese
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