To provide a door closing device capable of reducing noise generated in releasing a locked state in which the movement of a door body is regulated.SOLUTION: A lock device 30 of this door closing device 100 includes a lock pin 31 (a pin member) for regulating movement of door bodies (A, B) by being engaged with an engagement body 27 (a door body fixing part) fixed to the door bodies (A, B), and a pin holding member 32 for moving integrally with the lock pin 31. Also, the lock device 30 includes a solenoid 33 (a shaft drive part) for moving a shaft 33a to press the pin holding member 32, and moving the pin holding member 32 in a direction of separating from an engagement position between the lock pin 31 and the engagement body 27. Also, the lock device 30 includes a buffer part 40 for relaxing shock due to a collision between components included in the lock device 30 when a locked state of the door bodies (A, B) is released due to the movement of the lock pin 31 in the separation direction.SELECTED DRAWING: Figure 1

    【課題】戸体の移動が規制されている施錠状態を解除する際に発生する騒音を低減することが可能な戸閉装置を提供する。【解決手段】この戸閉装置100のロック装置30は、戸体(A、B)に固定される係合体27(戸体固定部)と係合することにより戸体(A、B)の移動を規制するロックピン31(ピン部材)と、ロックピン31と一体的に移動するピン保持部材32と、を含む。また、ロック装置30は、シャフト33aを移動させてピン保持部材32を押圧し、ロックピン31と係合体27との係合位置から離間する方向にピン保持部材32を移動させるソレノイド33(シャフト駆動部)を含む。また、ロック装置30は、ロックピン31が上記離間方向に移動されることに伴って戸体(A、B)の施錠状態が解除される際に、ロック装置30に含まれる部品同士の衝突による衝撃を緩和する緩衝部40を含む。【選択図】図1


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    Title :

    DOOR CLOSING DEVICE


    Additional title:

    戸閉装置


    Contributors:

    Publication date :

    2021-09-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / E05B LOCKS , Schlösser / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung



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