GB2452574B - Door closer - Google Patents

Door closer

Info

Publication number
GB2452574B
GB2452574B GB0717619A GB0717619A GB2452574B GB 2452574 B GB2452574 B GB 2452574B GB 0717619 A GB0717619 A GB 0717619A GB 0717619 A GB0717619 A GB 0717619A GB 2452574 B GB2452574 B GB 2452574B
Authority
GB
United Kingdom
Prior art keywords
fluid
housing
plunger
door
mounting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB0717619A
Other versions
GB0717619D0 (en
GB2452574A (en
Inventor
Alister Peter Reid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Astra Door Controls Ltd
Original Assignee
Astra Door Controls Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Astra Door Controls Ltd filed Critical Astra Door Controls Ltd
Priority to GB0717619A priority Critical patent/GB2452574B/en
Publication of GB0717619D0 publication Critical patent/GB0717619D0/en
Priority to PCT/GB2008/003055 priority patent/WO2009034310A1/en
Publication of GB2452574A publication Critical patent/GB2452574A/en
Application granted granted Critical
Publication of GB2452574B publication Critical patent/GB2452574B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/108—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with piston rod protruding from the closer housing; Telescoping closers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/252—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors

Abstract

A door closer for mounting between a door leaf and a door frame, the door closer comprising: an elongate housing 2 for mounting in one of the door leaf or door frame, a plunger 6 disposed in and movable along the housing 2, a biasing element 4, which may be a helical compression spring, disposed in the housing 2 and biasing the plunger 6 inwardly of the housing 2, and a tension member 14 having a first end 16 connected to the plunger 6 and a second end 20 connected to an anchor element assembly 24, the anchor element assembly comprising a mounting member 20, for mounting in the other of the door leaf or door frame, and a hydraulic damper 50 for damping the movement of the plunger 6 within the housing 2, the hydraulic damper 50 comprising a hydraulic fluid selected from a glycol-based fluid or a silicone-base fluid since their viscosity is less susceptible to changes in operating temperature. The hydraulic fluid is preferably a glycol-based brake fluid such as DOT 3, 4, or 5.1 as used in automobiles. The door closer is not limited to glycol-based or silicone-based fluids, in which case the hydraulic damper further comprises a restrictor valve having a threaded adjuster pin 52, including a needle valve member 55, which can be screwed in and out to adjust the flow of fluid in the damper; the needle valve 55 has a tapered surface at angle of less than 1 degree, alternatively it may have an angle of no greater than 2.5 degrees if a fluid having a viscosity in the range 750cP to 2000cP at minus 40 degrees centigrade is used.
GB0717619A 2007-09-10 2007-09-10 Door closer Active GB2452574B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0717619A GB2452574B (en) 2007-09-10 2007-09-10 Door closer
PCT/GB2008/003055 WO2009034310A1 (en) 2007-09-10 2008-09-08 Door closer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0717619A GB2452574B (en) 2007-09-10 2007-09-10 Door closer

Publications (3)

Publication Number Publication Date
GB0717619D0 GB0717619D0 (en) 2007-10-17
GB2452574A GB2452574A (en) 2009-03-11
GB2452574B true GB2452574B (en) 2012-08-08

Family

ID=38640540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0717619A Active GB2452574B (en) 2007-09-10 2007-09-10 Door closer

Country Status (2)

Country Link
GB (1) GB2452574B (en)
WO (1) WO2009034310A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022975A1 (en) * 2009-05-28 2010-12-02 Dorma Gmbh + Co. Kg Valve of a hydraulic door operator
GB2486249A (en) * 2010-12-09 2012-06-13 Astra Door Controls Ltd Door closer with hydraulic damper

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949625A (en) * 1956-02-21 1960-08-23 Hubert A Guyer Door closer
US3143757A (en) * 1961-05-12 1964-08-11 Ideal Brass Works Inc Hydraulic door closer
GB1263666A (en) * 1970-03-31 1972-02-16 Ammus Sytytin Oy Door closer for mounting in a door frame or a door
US3680171A (en) * 1970-11-23 1972-08-01 Wright Products Hydraulic door closer
EP0332426A1 (en) * 1988-03-10 1989-09-13 Reilor Limited Door closer
EP0470724A1 (en) * 1990-08-09 1992-02-12 Reilor Limited Improvements in or relating to door closers
EP0562460A1 (en) * 1992-03-23 1993-09-29 Paul Schmid Door closer with throttle valve for fluids with thermostatic throttling for compensation of fluid viscosity changing caused by temperature fluctuation
WO2005124079A2 (en) * 2004-06-17 2005-12-29 Astra Door Controls Ltd Door closer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731648A (en) * 1952-09-19 1955-06-08 Keller And Knappich G M B H Door-closing device
CA2147584C (en) * 1994-04-25 2001-08-14 Rex H. Lasson Door closer for the non-fire side of a fire-door safety installation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949625A (en) * 1956-02-21 1960-08-23 Hubert A Guyer Door closer
US3143757A (en) * 1961-05-12 1964-08-11 Ideal Brass Works Inc Hydraulic door closer
GB1263666A (en) * 1970-03-31 1972-02-16 Ammus Sytytin Oy Door closer for mounting in a door frame or a door
US3680171A (en) * 1970-11-23 1972-08-01 Wright Products Hydraulic door closer
EP0332426A1 (en) * 1988-03-10 1989-09-13 Reilor Limited Door closer
EP0470724A1 (en) * 1990-08-09 1992-02-12 Reilor Limited Improvements in or relating to door closers
EP0562460A1 (en) * 1992-03-23 1993-09-29 Paul Schmid Door closer with throttle valve for fluids with thermostatic throttling for compensation of fluid viscosity changing caused by temperature fluctuation
WO2005124079A2 (en) * 2004-06-17 2005-12-29 Astra Door Controls Ltd Door closer

Also Published As

Publication number Publication date
WO2009034310A1 (en) 2009-03-19
GB0717619D0 (en) 2007-10-17
GB2452574A (en) 2009-03-11

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