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To provide a door closer capable of easily securing necessary closing force.SOLUTION: The door closer includes: a first spring 17 that deforms elastically when the door opens and restores to generate a closing force when the door closes; a second spring 18 that is placed separately from the first spring 17, and deforms elastically when the door opens and restores to generate a closing force when the door closes; and a third spring 19 that is placed separate from the first spring 17 and the second spring 18 and deforms elastically when the door opens, and restores when the door closes to generate a closing force. When the door opens, cams 13a and 13b elastically deform the first spring 17, and a piston 12 elastically deforms the second spring 18 and the third spring 19.SELECTED DRAWING: Figure 1
【課題】必要な閉じ力を容易に確保することができるドアクローザを提供する。【解決手段】扉が開くときに弾性変形し、扉が閉じるときに復元して閉じ力を発生する第一バネ17と、第一バネ17とは別に設けられ、扉が開くときに弾性変形し、扉が閉じるときに復元して閉じ力を発生させる第二バネ18と、第一バネ17及び第二バネ18とは別に設けられ、扉が開くときに弾性変形し、扉が閉じるときに復元して閉じ力を発生させる第三バネ19と、を備え、扉が開くときに、カム13a,13bが第一バネ17を弾性変形させ、ピストン12が第二バネ18と第三バネ19を弾性変形させる。【選択図】図1
To provide a door closer capable of easily securing necessary closing force.SOLUTION: The door closer includes: a first spring 17 that deforms elastically when the door opens and restores to generate a closing force when the door closes; a second spring 18 that is placed separately from the first spring 17, and deforms elastically when the door opens and restores to generate a closing force when the door closes; and a third spring 19 that is placed separate from the first spring 17 and the second spring 18 and deforms elastically when the door opens, and restores when the door closes to generate a closing force. When the door opens, cams 13a and 13b elastically deform the first spring 17, and a piston 12 elastically deforms the second spring 18 and the third spring 19.SELECTED DRAWING: Figure 1
【課題】必要な閉じ力を容易に確保することができるドアクローザを提供する。【解決手段】扉が開くときに弾性変形し、扉が閉じるときに復元して閉じ力を発生する第一バネ17と、第一バネ17とは別に設けられ、扉が開くときに弾性変形し、扉が閉じるときに復元して閉じ力を発生させる第二バネ18と、第一バネ17及び第二バネ18とは別に設けられ、扉が開くときに弾性変形し、扉が閉じるときに復元して閉じ力を発生させる第三バネ19と、を備え、扉が開くときに、カム13a,13bが第一バネ17を弾性変形させ、ピストン12が第二バネ18と第三バネ19を弾性変形させる。【選択図】図1
DOOR CLOSER
ドアクローザ
NAKAMAE TOMOHIRO (author)
2023-08-23
Patent
Electronic Resource
Japanese
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
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Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung