A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a fire door locking device that can reduce the installation cost of a fire door and reliably close the fire door in the event of a fire.SOLUTION: A fire door locking device includes a door stopper 10, an adsorbed portion 20, an adsorbing member 30, a locking member 40, biasing means 50, and support means 60. The door stopper 10 is brought into contact with the fire door 1 when the opening angle of the fire door 1 becomes a predetermined angle α. The adsorbed portion 20 is provided on the door stopper 10 and includes a ferromagnetic material 21. The adsorbing member 30 includes a magnet and adsorbs onto the adsorbed portion 20. The locking member 40 causes the adsorbing member 30 to engage with the fire door 1. The biasing means 50 biases the locking member 40 toward the disengaged position. The support means 60 includes a thermal fuse and supports the locking member 40 in the engaged position against the force from the biasing means 50 when the ambient temperature is equal to or lower than a predetermined temperature.SELECTED DRAWING: Figure 2
【課題】防火扉の設置コストを抑えることができるとともに、火災発生時に、防火扉を確実に閉じることができる防火扉の係止装置を提供する。【解決手段】防火扉の係止装置は、ドアストッパ１０と、被吸着部２０と、吸着部材３０と、係止部材４０と、付勢手段５０と、支持手段６０とを具備する。ドアストッパ１０は、防火扉１の開度が所定角度αとなったときに防火扉１と当接する。被吸着部２０は、ドアストッパ１０に設けられ、強磁性体２１を含む。吸着部材３０は、磁石を含み、被吸着部２０に吸着する。係止部材４０は、吸着部材３０を防火扉１に係止する。付勢手段５０は、係止部材４０を非係合位置に向かって付勢する。支持手段６０は、温度ヒューズを含み、環境温度が所定温度以下であるとき、付勢手段５０の付勢力に抗して、係止部材４０を係合位置に支持する。【選択図】図２
To provide a fire door locking device that can reduce the installation cost of a fire door and reliably close the fire door in the event of a fire.SOLUTION: A fire door locking device includes a door stopper 10, an adsorbed portion 20, an adsorbing member 30, a locking member 40, biasing means 50, and support means 60. The door stopper 10 is brought into contact with the fire door 1 when the opening angle of the fire door 1 becomes a predetermined angle α. The adsorbed portion 20 is provided on the door stopper 10 and includes a ferromagnetic material 21. The adsorbing member 30 includes a magnet and adsorbs onto the adsorbed portion 20. The locking member 40 causes the adsorbing member 30 to engage with the fire door 1. The biasing means 50 biases the locking member 40 toward the disengaged position. The support means 60 includes a thermal fuse and supports the locking member 40 in the engaged position against the force from the biasing means 50 when the ambient temperature is equal to or lower than a predetermined temperature.SELECTED DRAWING: Figure 2
【課題】防火扉の設置コストを抑えることができるとともに、火災発生時に、防火扉を確実に閉じることができる防火扉の係止装置を提供する。【解決手段】防火扉の係止装置は、ドアストッパ１０と、被吸着部２０と、吸着部材３０と、係止部材４０と、付勢手段５０と、支持手段６０とを具備する。ドアストッパ１０は、防火扉１の開度が所定角度αとなったときに防火扉１と当接する。被吸着部２０は、ドアストッパ１０に設けられ、強磁性体２１を含む。吸着部材３０は、磁石を含み、被吸着部２０に吸着する。係止部材４０は、吸着部材３０を防火扉１に係止する。付勢手段５０は、係止部材４０を非係合位置に向かって付勢する。支持手段６０は、温度ヒューズを含み、環境温度が所定温度以下であるとき、付勢手段５０の付勢力に抗して、係止部材４０を係合位置に支持する。【選択図】図２
FIRE DOOR LOCKING DEVICE
防火扉の係止装置
TAGAWA TOSHIKAZU (author)
2022-05-31
Patent
Electronic Resource
Japanese
IPC:
E05B
LOCKS
,
Schlösser
/
A62C
FIRE-FIGHTING
,
Feuerbekämpfung
/
E05C
Riegel oder Feststellvorrichtungen für Flügel, insbesondere für Türen oder Fenster
,
BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
/
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung