PROBLEM TO BE SOLVED: To provide a device which maintains airtightness by blocking a clearance even if a pressure difference is generated at the inside and outside of a car due to air pressure control, and a door is extruded to the inside or outside of the car.SOLUTION: A car door airtight device comprises: a rotatable airtight mechanism body 26; a pressing airtight member 27; energization means 34; an airtight plate 28; a rod 30 extending to a vertical direction with respect to a rotating shaft 25; an engagement roller 31; and an inclined cam 32 arranged at a door 12. When the engagement roller 31 and the inclined cam 32 are engaged with each other, the airtight mechanism body 26 rotates with the rotating shaft 25 as a center, and makes the pressing airtight member 27 contact with the door 12. Distances from the rotating shaft 25 up to the engagement roller 31 and the pressing airtight member 32 are set so that a distance from the pressing airtight member 32 becomes longer than a distance from the engagement roller 31. When the engagement roller 31 contacts with the inclined cam 32, and inside air pressure in the car becomes higher than outside air pressure at the outside of the car, an orientation of a force to be applied is made to coincide with a direction in which the door is pressed by the in-car air pressure.SELECTED DRAWING: Figure 4
【課題】 隙間を塞ぎ、気圧制御で乗りかご内外に気圧差が生じ、ドアがかご内外どちらに押し出されても、気密性を維持する装置の提供。【解決手段】 回転可能な気密機構ボディ26と、押込み気密部材27と、付勢手段34と、気密板28と、回転軸25に対して垂直な方向に延伸するロッド30と、係合ローラ31と、ドア12に設けられた傾斜カム32とを備え、係合ローラ31と傾斜カム32が係合すると、気密機構ボディ26は回転軸25を中心に回転して押込み気密部材27をドア12に接触させ、係合ローラ31及び押込み気密部材32の回転軸25からの距離は係合ローラ31より押込み気密部材32のほうが大きくなるように設けられ、係合ローラ31が傾斜カム32と接触し加えられる力の向きが、乗りかご内の圧力が乗りかご外の圧力より高くなった際に、かご内気圧によりドアを押圧する方向と同一方向とした。【選択図】図4
CAR DOOR AIRTIGHT DEVICE AND ELEVATOR DEVICE
乗りかごドア気密装置及びエレベーター装置
2016-05-09
Patent
Elektronische Ressource
Japanisch
IPC: | B66B Aufzüge , ELEVATORS |