GB2441893B - Damped door closer comprising spring, piston and piston valve mechanism with spring seal member - Google Patents

Damped door closer comprising spring, piston and piston valve mechanism with spring seal member

Info

Publication number
GB2441893B
GB2441893B GB0718101A GB0718101A GB2441893B GB 2441893 B GB2441893 B GB 2441893B GB 0718101 A GB0718101 A GB 0718101A GB 0718101 A GB0718101 A GB 0718101A GB 2441893 B GB2441893 B GB 2441893B
Authority
GB
United Kingdom
Prior art keywords
seal member
annular seal
annular
piston
housing
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
GB0718101A
Other versions
GB2441893A (en
GB0718101D0 (en
Inventor
Mark Richard Hesketh
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 GB0718101A priority Critical patent/GB2441893B/en
Priority claimed from GB0413602A external-priority patent/GB2415227B/en
Publication of GB0718101D0 publication Critical patent/GB0718101D0/en
Publication of GB2441893A publication Critical patent/GB2441893A/en
Application granted granted Critical
Publication of GB2441893B publication Critical patent/GB2441893B/en
Anticipated expiration legal-status Critical
Active legal-status Critical Current

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
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • 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—Type of wing
    • E05Y2900/132—Doors

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

A door closer comprises a housing for fitting into a door, a tension member extending longitudinally within the central bore of the housing and extending outwardly of the housing through an opening, a movable body within the housing adapted for longitudinal movement within the central bore, the movable body being connected to the tension member, a helical compression spring and a hydraulic damping assembly. A valve mechanism of the piston comprises a boss 104 fitted to a piston shaft and defining an annular sealing face. An annular seal member 106 is disposed for longitudinal sliding motion on a channel member120 located within a circumferentially inner surface of the annular seal member 106, the seal member 106 having an annular end sealing surface for sealing engagement with the annular sealing face of the boss 104 and a circumferentially outer surface of the annular seal member 106 providing a sealing engagement with the movable body, the channel member 120 having at least one longitudinal channel 122 therein communicating between opposite sides of the annular seal member, and a biasing element biasing the annular seal member towards the annular seal face of the boss.
GB0718101A 2004-06-17 2004-06-17 Damped door closer comprising spring, piston and piston valve mechanism with spring seal member Active GB2441893B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0718101A GB2441893B (en) 2004-06-17 2004-06-17 Damped door closer comprising spring, piston and piston valve mechanism with spring seal member

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0718101A GB2441893B (en) 2004-06-17 2004-06-17 Damped door closer comprising spring, piston and piston valve mechanism with spring seal member
GB0413602A GB2415227B (en) 2004-06-17 2004-06-17 Door closer

Publications (3)

Publication Number Publication Date
GB0718101D0 GB0718101D0 (en) 2007-10-24
GB2441893A GB2441893A (en) 2008-03-19
GB2441893B true GB2441893B (en) 2008-10-15

Family

ID=38659091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0718101A Active GB2441893B (en) 2004-06-17 2004-06-17 Damped door closer comprising spring, piston and piston valve mechanism with spring seal member

Country Status (1)

Country Link
GB (1) GB2441893B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474878B (en) 2009-10-30 2012-07-18 Astra Door Controls Ltd Valve mechanism for a hydraulic door and fitting tool for fitting the door
GB2486251B (en) 2010-12-09 2014-02-12 Astra Door Controls Ltd Door closer
CN102587776A (en) * 2012-03-07 2012-07-18 卫德义 Ring groove type heavy-damping micropore hydraulic damper
CN104775704B (en) * 2015-04-27 2016-09-07 姬志刚 A kind of stealthy door closer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052622A (en) * 1979-06-15 1981-01-28 Dorma Baubeschlag Door closer
US4263694A (en) * 1977-11-21 1981-04-28 Dorma-Baubeschlag Gmbh & Co. Kg Door closer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263694A (en) * 1977-11-21 1981-04-28 Dorma-Baubeschlag Gmbh & Co. Kg Door closer
GB2052622A (en) * 1979-06-15 1981-01-28 Dorma Baubeschlag Door closer

Also Published As

Publication number Publication date
GB2441893A (en) 2008-03-19
GB0718101D0 (en) 2007-10-24

Similar Documents

Publication Publication Date Title
US8052557B2 (en) Hydraulic auto-tensioner with double seal ring
MX2012005059A (en) Door closer.
GB2437530B (en) Fitting tool for a concealed door closer
KR102425730B1 (en) Pump unit for conveying fuel, preferably diesel fuel, to an internal combustion engine
ATE462057T1 (en) DOOR CLOSER
KR960705122A (en) DOOR CLOSERS AND DAMPERS PRIMARILY FOR DOOR CLOSERS
JP5086171B2 (en) Hydraulic auto tensioner
JP5365800B2 (en) Cylinder device
GB2441893B (en) Damped door closer comprising spring, piston and piston valve mechanism with spring seal member
KR930021975A (en) Automatic tensioner for simultaneous electric belt
JP4435757B2 (en) Chain tensioner mounting device
CN112469920B (en) Improvements in dampers
US9360076B2 (en) Dampers
KR102040485B1 (en) Structure for protecting piston deformation of floor hinge
JPH10141453A (en) Hydraulic auto tensioner
KR20200014996A (en) Door closer
JP5926002B2 (en) Chain tensioner
JP2006226504A (en) Chain tensioner
WO2009149587A1 (en) Door closer systems and methods
JP2007010130A (en) Hydraulic auto tensioner and tension adjusting device for belt
KR20090008461U (en) Midway Stop Spring
JP2006292019A (en) Hydraulic automatic tensioner
KR20200014999A (en) Door closer
WO2008087900A1 (en) Automatic tensioner
JP2007303644A (en) Hydraulic automatic tensioner