EP0068963A1 - Automatischer Türschliesser mit eingebauter Bremse - Google Patents

Automatischer Türschliesser mit eingebauter Bremse Download PDF

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Publication number
EP0068963A1
EP0068963A1 EP82401076A EP82401076A EP0068963A1 EP 0068963 A1 EP0068963 A1 EP 0068963A1 EP 82401076 A EP82401076 A EP 82401076A EP 82401076 A EP82401076 A EP 82401076A EP 0068963 A1 EP0068963 A1 EP 0068963A1
Authority
EP
European Patent Office
Prior art keywords
piston
door closer
bladder
housing
closer according
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.)
Withdrawn
Application number
EP82401076A
Other languages
English (en)
French (fr)
Inventor
Gérard Saigne
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.)
Paumellerie Electrique SA
Original Assignee
Paumellerie Electrique SA
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 Paumellerie Electrique SA filed Critical Paumellerie Electrique SA
Publication of EP0068963A1 publication Critical patent/EP0068963A1/de
Withdrawn legal-status Critical Current

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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
    • E05F3/102—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 rack-and-pinion transmission between driving shaft and piston within the closer housing
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E05Y2201/474—Compression springs
    • 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

Definitions

  • the door closers currently used consist of two arms which are hinged together and intended to be hinged, one on the leaf, the other on the door frame, and one of which is associated with a closing device.
  • automatic Different types of closing devices have been produced, but they all generally include a piston movable inside a housing containing oil, and connected to the arm by a rack and pinion system, or similar.
  • a spring pushes the piston, and consequently the arm, towards the closed position but this movement is braked by the pressure of the oil in the housing, a constricted passage limiting the circulation of the oil in this direction.
  • the object of the present invention is to remedy this by providing a door closer which no longer requires the use of precise parts, the problems posed by sealing being practically eliminated.
  • the object of this invention is in fact a door closer, the closing device of which comprises, opposite the spring, a bladder containing a viscous gum, deformable but incompressible, placed in a hollow piston resiliently returned to an adjustment position.
  • the gum contained in the bladder is a visco-elastic elastomer gum, based on silicone.
  • a visco-elastic elastomer gum based on silicone.
  • Such an eraser the viscosity of which is variable and which reacts suddenly under the action of an impact such as that of the piston pushed back by the spring, first ensures a significant absorption of energy then, once again become fluid and viscous, but always incompressible, ensures regular braking of the piston. The safety and efficiency of the device are thus improved.
  • the door closer object of the invention has two arms, respectively 1 and 2, which are hinged together at 3.
  • the first arm, 1, preferably has an adjustable length and carries at its end free an axis 4 allowing its articulated mounting, for example as in the embodiment shown, on the frame 5 of the door.
  • the second arm 2 is itself fixed to a device 6 for closing the door carried, in this embodiment, by the leaf 7 of the latter.
  • the arm 2 is secured at its end to an axis 8 which passes through it but also passes right through, a housing 10 of the closure device 6. Inside this housing 10 the axis 8 is integral with a toothed pinion 12, engaged with a rack 14 carried by a cylindrical pinion 16 coaxial with the housing 10. The rod 18 of this piston 16 is guided in a cylindrical sleeve 20 integral with the end wall 21 of the housing 10. Furthermore a spring 22 mounted between the wall 21 and the cylinder 16 tends to move apart the latter and push it towards the opposite end of the housing 10.
  • the displacement of the piston 16 is further guided by a relatively thick sheath, 24, which is fixed in the housing 10 and has a recess 25 allowing the passage of the axis 8 and the pinion 12.
  • the sheath 24 At its end opposite the spring 22 the sheath 24 has a recess 26 forming between it and the housing 10 an annular space 28 in which the side wall of a hollow piston 30, of large diameter, can slide.
  • the piston 30 is guided by the internal wall of the housing 10 and also provides centering of the end of the central sleeve 32, which is also fitted onto an annular projection 34 carried by the end wall 36 of the housing 10.
  • the sleeve 32 has an external shoulder 38 and a spring 40, pressing against this shoulder, tends to push the piston 30 towards the sheath 24.
  • the sleeve 32 being hollow carries at its internal end the nozzle 42 for filling a bladder 44 placed inside the piston 30 and filled with a viscous and incompressible fluid 46.
  • the end piece 42 is closed by a tight screw 43, while the annular projection 34 of the wall 36 which carries the sleeve 32 is closed by an adjustment screw 48, integral with a control button 50.
  • the screw adjustment 48 is in abutment against the sleeve 32 and Thus determines the position of the filling nozzle 42, that is to say of the bladder 44 relative to the sheath 24.
  • the viscous fluid 46 contained in the bladder 44 is preferably a visco-elastic elastomer gum, and in particular a non-crosslinked silicone gum, having a consistency of viscosity in a wide temperature range and a high energy absorption capacity.
  • this gum can be added with different components, so as to vary its viscosity according to the type of door closer to be produced. It is for example possible to add to the gum industrial glycerin, white oleic acid or any other product.
  • the bladder 44 is made of a waterproof material, resistant to repeated deformation at various temperatures, such as a fluorocarbon or other elastomer.
  • the spring 22 pushes the piston 16 in the direction of the bladder 44, so that the rack 14 causes a rotation in opposite direction of the axis 8 of articulation of the arm 2.
  • the piston 16 then abuts abruptly against the central projection of the bladder 44, the contents of which it forces back towards the end piece 42. Then the viscous fluid 44 is incompressible, the continued movement of the piston 16 simultaneously repels the bladder 44 and the piston 30 against the action of the spring 40, in the direction of the opposite end wall 36.
  • the fluid 44 is viscous and the piston 30 having a diameter significantly greater than that of the piston 16, the latter is gradually braked and then ready to stop.
  • the viscous gum 46 is a visco-elastic silicone gum capable of hardening suddenly under the effect of an impact
  • the assembly formed by the bladder 44 and the viscous gum 46 absorbs a very large amount of energy from the piston 16 and stops it practically for an extremely short instant, of the order of a few tenths of a second.
  • the visco-elastic rubber 46 however quickly becomes viscous and fluid again, so that further movement of the piston 16 under the action of the pinion 12 is possible, although considerably hampered by the need to move the entire rubber as well as the piston 30 against the action of the spring 40.
  • the closing device is then in its rest position, that is to say that the bladder 44 has returned to its initial position.
  • the device is ready to be used again.
  • the only fluid used is the rubber contained in the bladder 44.
  • the only sealing device required is therefore that which is placed between the filling nozzle 42 and the screw 43 for closing this nozzle.
  • the other members simply need to move easily relative to each other and can easily be manufactured with relatively large tolerances. Consequently, the housing 10, as well as the members it contains, can be made of plastic material having a good coefficient of friction.
  • the housing 10 is made of polyamide or polyester, while the piston 30 which slides in this housing is made of a polyacetal.
  • these organs can also be manufactured in metal, for example aluminum or zinc alloy (Zanak), no further machining being necessary.
  • the housing 10 is preferably constituted by a single piece and is simply open at its end.
  • the wall 36 which supports the adjustment screw 48 is then constituted by a removable cap fixed to the wall of the housing 10, for example by a bayonet system.
  • the device can thus be dismantled at any time to be checked and maintained. It is also possible at any time to modify its setting and to have access to the interior of the bladder 44, either for the purpose of filling, or for the purpose of modifying the viscous product contained in this bladder, and thus adjusting the braking intensity which is linked to the viscosity of the rubber, and / or ensuring a take-up of the clearances and wear.
  • This provides an inexpensive production device, the operation of which is safe and reliable, and which is particularly resistant to wear and fatigue.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP82401076A 1981-06-23 1982-06-14 Automatischer Türschliesser mit eingebauter Bremse Withdrawn EP0068963A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8112274 1981-06-23
FR8112274A FR2508089A1 (fr) 1981-06-23 1981-06-23 Ferme-porte automatique a moyens de freinage incorpores

Publications (1)

Publication Number Publication Date
EP0068963A1 true EP0068963A1 (de) 1983-01-05

Family

ID=9259769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401076A Withdrawn EP0068963A1 (de) 1981-06-23 1982-06-14 Automatischer Türschliesser mit eingebauter Bremse

Country Status (3)

Country Link
US (1) US4455708A (de)
EP (1) EP0068963A1 (de)
FR (1) FR2508089A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020090A1 (de) * 1994-01-19 1995-07-27 Gretsch-Unitas Gmbh Türschliesser
DE4002889C5 (de) * 1990-02-01 2005-11-10 Geze Gmbh Türschließer
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847946A (en) * 1988-03-24 1989-07-18 Sam Kyong Hardware Co., Ltd. Hydraulic door closer
GB9418662D0 (en) * 1994-09-16 1994-11-02 Xcalibre Equipment Ltd Pneumatic system and device
US6330902B1 (en) * 2000-07-31 2001-12-18 Chang Than Chen Length adjustable foldable door assembly
JP4697704B2 (ja) * 2005-02-02 2011-06-08 日本発條株式会社 スライドロック装置
AT510375B1 (de) * 2010-08-27 2018-06-15 Blum Gmbh Julius Möbeldämpfer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688150A (en) * 1946-05-27 1954-09-07 Roussel Georges Henri Variable volume chamber
FR1440242A (fr) * 1964-05-25 1966-05-27 Ferme-porte

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL105048C (de) * 1957-02-06
US3259937A (en) * 1963-09-30 1966-07-12 Kotikov Nicholas Hydraulic door closer
US4115897A (en) * 1977-10-11 1978-09-26 Eaton Corporation Zero force hold open door closer
DE2924311A1 (de) * 1979-06-15 1980-12-18 Dorma Baubeschlag Selbsttaetiger tuerschliesser

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688150A (en) * 1946-05-27 1954-09-07 Roussel Georges Henri Variable volume chamber
FR1440242A (fr) * 1964-05-25 1966-05-27 Ferme-porte

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002889C5 (de) * 1990-02-01 2005-11-10 Geze Gmbh Türschließer
WO1995020090A1 (de) * 1994-01-19 1995-07-27 Gretsch-Unitas Gmbh Türschliesser
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US9121217B1 (en) 2001-07-13 2015-09-01 Steven M. Hoffberg Intelligent door restraint
US9995076B1 (en) 2001-07-13 2018-06-12 Steven M. Hoffberg Intelligent door restraint

Also Published As

Publication number Publication date
FR2508089B1 (de) 1983-11-18
US4455708A (en) 1984-06-26
FR2508089A1 (fr) 1982-12-24

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19830701

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Withdrawal date: 19850304

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Inventor name: SAIGNE, GERARD