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A platform for research: civil engineering, architecture and urbanism
Adjustable door-closer
A door closer with a first 5 and second 7 chamber in communication via a first valve. A moveable piston 9 changes the volume of the first chamber between a door open position (maximum volume), and a door closed position (minimum volume) and the piston is biased towards the door closed position by a resilient biasing member, e.g. a spring (15 Fig 2). The first valve 11 allows fluid to move between the first and second chambers across the entire range of door open to door closed positions and the fluid flow rate through the first valve is adjustable e.g. via a control screw. Preferably there is a second “door speed valve” 16 and third “latch control valve” 17 corresponding to two further flow paths which only act over a certain amount of movement of the door such that at times only the first valve works, or the first, second and third valves work, or the first and second valves work. This allows the door to move at different speeds as it closes – faster over the majority of it range but then slower as it closes to allow it to latch and not slam shut.
Adjustable door-closer
A door closer with a first 5 and second 7 chamber in communication via a first valve. A moveable piston 9 changes the volume of the first chamber between a door open position (maximum volume), and a door closed position (minimum volume) and the piston is biased towards the door closed position by a resilient biasing member, e.g. a spring (15 Fig 2). The first valve 11 allows fluid to move between the first and second chambers across the entire range of door open to door closed positions and the fluid flow rate through the first valve is adjustable e.g. via a control screw. Preferably there is a second “door speed valve” 16 and third “latch control valve” 17 corresponding to two further flow paths which only act over a certain amount of movement of the door such that at times only the first valve works, or the first, second and third valves work, or the first and second valves work. This allows the door to move at different speeds as it closes – faster over the majority of it range but then slower as it closes to allow it to latch and not slam shut.
Adjustable door-closer
STUART LESLIE NORCOTT (author) / SIMON GIBBS (author) / BRUCE PATRICK MCCARTHY (author)
2023-06-14
Patent
Electronic Resource
English
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