A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
KEY HOLE STRUCTURE FOR UNDERFLOOR INSPECTION HOLE
PROBLEM TO BE SOLVED: To provide a key hole structure that effectively prevents loss of keys and penetration of dust and others into the key hole.SOLUTION: A key hole structure comprises a locking member disposed on the lid of an underfloor inspection hole and a key member for locking and unlocking the locking member. The locking member has inner threads and comprises a tubular body of which an end is fixed on the lid plate of the underfloor inspection hole and a covering screw fitted on the inner threads of the tubular body and is movable inside the tubular body in the axial direction. The key member comprises an actuation rod having an outer screw on the outer peripheral surface at an end, to be fitted with the inner threads of the tubular body, and a handle disposed on the other end of the actuation rod. A concave fitting part of a prescribed shape is formed on either the end face at the open end side of the tubular body of the covering screw of the locking member or the end face of the actuation rod of the key member, while a convex fitting part is formed on the other end, to be fitted detachably with the concave fitting part.
【課題】鍵の紛失や鍵穴への塵埃などの侵入を効果的に回避できる鍵穴構造を提供する。【解決手段】床下点検口の蓋に設けられる施錠部材と、この施錠部材を鎖錠、解錠するための鍵部材とから構成される。施錠部材は、その内部に内ネジを有し、一端を床下点検口の蓋の蓋板に固着された筒状の筒体と、筒体の内ネジに螺合して筒体内を軸方向へ移動可能な塞ぎネジとから構成される。鍵部材は、その一端の外周面に筒体の内ネジに螺合する外ネジを有する棒状の作動桿と、作動桿の他端に設けられた取っ手とから構成される。施錠部材の塞ぎネジの筒体の開放端側に位置する端面および鍵部材の作動桿の前記一端の端面の一方には、所定の形状に形成された凹状嵌合部が設けられ、他方の端面には、凸状嵌合部と係脱自在に嵌合するように形成された凸状嵌合部が設けられる。【選択図】図３
KEY HOLE STRUCTURE FOR UNDERFLOOR INSPECTION HOLE
PROBLEM TO BE SOLVED: To provide a key hole structure that effectively prevents loss of keys and penetration of dust and others into the key hole.SOLUTION: A key hole structure comprises a locking member disposed on the lid of an underfloor inspection hole and a key member for locking and unlocking the locking member. The locking member has inner threads and comprises a tubular body of which an end is fixed on the lid plate of the underfloor inspection hole and a covering screw fitted on the inner threads of the tubular body and is movable inside the tubular body in the axial direction. The key member comprises an actuation rod having an outer screw on the outer peripheral surface at an end, to be fitted with the inner threads of the tubular body, and a handle disposed on the other end of the actuation rod. A concave fitting part of a prescribed shape is formed on either the end face at the open end side of the tubular body of the covering screw of the locking member or the end face of the actuation rod of the key member, while a convex fitting part is formed on the other end, to be fitted detachably with the concave fitting part.
【課題】鍵の紛失や鍵穴への塵埃などの侵入を効果的に回避できる鍵穴構造を提供する。【解決手段】床下点検口の蓋に設けられる施錠部材と、この施錠部材を鎖錠、解錠するための鍵部材とから構成される。施錠部材は、その内部に内ネジを有し、一端を床下点検口の蓋の蓋板に固着された筒状の筒体と、筒体の内ネジに螺合して筒体内を軸方向へ移動可能な塞ぎネジとから構成される。鍵部材は、その一端の外周面に筒体の内ネジに螺合する外ネジを有する棒状の作動桿と、作動桿の他端に設けられた取っ手とから構成される。施錠部材の塞ぎネジの筒体の開放端側に位置する端面および鍵部材の作動桿の前記一端の端面の一方には、所定の形状に形成された凹状嵌合部が設けられ、他方の端面には、凸状嵌合部と係脱自在に嵌合するように形成された凸状嵌合部が設けられる。【選択図】図３
KEY HOLE STRUCTURE FOR UNDERFLOOR INSPECTION HOLE
床下点検口の鍵穴構造
SHIBATA NORIKUNI (author)
2015-08-24
Patent
Electronic Resource
Japanese
UNDERFLOOR REINFORCEMENT METHOD AND UNDERFLOOR REINFORCEMENT STRUCTURE
| European Patent Office | 2023