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Torsion spring door closing apparatus
A torsion spring door closing apparatus for automatically closing doors with minimal hardware includes a torsion spring having a central coiled portion and a pair of arms. The coiled portion is configured to fit around a shaft of a hinge pin of a door hinge. The pair of arms comprises a hook arm and a catch arm each extending from the coiled portion. The pair of arms moves between a closed position and an open position and the torsion spring is biased towards the open position. When a door opens and squeezes the pair of arms towards the closed position they rebound to force the door to close again. A hook end of the hook is selectively engageable with a catch end of the catch arm to secure the torsion spring in the closed position and disengage the apparatus.
Torsion spring door closing apparatus
A torsion spring door closing apparatus for automatically closing doors with minimal hardware includes a torsion spring having a central coiled portion and a pair of arms. The coiled portion is configured to fit around a shaft of a hinge pin of a door hinge. The pair of arms comprises a hook arm and a catch arm each extending from the coiled portion. The pair of arms moves between a closed position and an open position and the torsion spring is biased towards the open position. When a door opens and squeezes the pair of arms towards the closed position they rebound to force the door to close again. A hook end of the hook is selectively engageable with a catch end of the catch arm to secure the torsion spring in the closed position and disengage the apparatus.
Torsion spring door closing apparatus
TENNESSEE LEONARD (author)
2021-06-29
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
DOOR OPENING/CLOSING DETECTION APPARATUS AND DOOR OPENING/CLOSING APPARATUS
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