EP0328917A1 - Ferme-porte - Google Patents

Ferme-porte Download PDF

Info

Publication number
EP0328917A1
EP0328917A1 EP89101415A EP89101415A EP0328917A1 EP 0328917 A1 EP0328917 A1 EP 0328917A1 EP 89101415 A EP89101415 A EP 89101415A EP 89101415 A EP89101415 A EP 89101415A EP 0328917 A1 EP0328917 A1 EP 0328917A1
Authority
EP
European Patent Office
Prior art keywords
valve
door
door closer
overflow valve
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.)
Granted
Application number
EP89101415A
Other languages
German (de)
English (en)
Other versions
EP0328917B1 (fr
Inventor
Gerhard SCHRÖDER
Dieter Mauckner
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.)
Gretsch Unitas GmbH
Gretsch Unitas GmbH Baubeschlaege
Original Assignee
Gretsch Unitas GmbH
Gretsch Unitas GmbH Baubeschlaege
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 Gretsch Unitas GmbH, Gretsch Unitas GmbH Baubeschlaege filed Critical Gretsch Unitas GmbH
Publication of EP0328917A1 publication Critical patent/EP0328917A1/fr
Application granted granted Critical
Publication of EP0328917B1 publication Critical patent/EP0328917B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E05F3/12—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
    • 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
    • E05Y2201/20—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
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/499—Spring tensioners; Tension sensors
    • 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 invention relates to a door closer with a rotary member, the movement of which can be converted into a displacement movement of a piston rod, the piston rod carrying at least one damping piston being displaceable against the force of at least one return compression spring when the door is opened, with at least one spring-loaded locking member Overflow valve in the damping piston, which hydraulically connects a front hydraulic chamber located between the damping piston and a housing base with a rear hydraulic chamber located behind the piston, the front and rear hydraulic chamber also being hydraulically connected via at least one throttle channel and at least one throttle valve.
  • Such door closers are in a variety of designs as well Floor closer and also known as overhead door closer. As a rule, they are filled with a hydraulic fluid that flows from one cylinder chamber to the other when the damping piston is moved.
  • the flow also takes place in the opposite direction.
  • the door In the case of a floor door closer, the door is firmly connected to the rotary link, while in the case of an overhead door closer a linkage is coupled to the rotary link, which connects the door closer to the door with a fixed door frame.
  • the hydraulic fluid when opening the door must be able to flow very quickly from one cylinder chamber to the other, more precisely, from the rear to the front hydraulic chamber.
  • the return compression spring or compression springs is then tensioned in a known manner. If a locking device for the open door is missing or has not yet been activated, the return compression spring pushes the piston back into its original position. Now the hydraulic medium must flow from the front hydraulic space to the rear hydraulic space. In order for the closing movement to take place slowly, the hydraulic medium must take a different flow path. In this flow path or possibly also several flow paths there is one or each throttle element, preferably a throttle valve.
  • throttle device is not shown and precisely described.
  • the throttle valves and their associated channels can be provided, for example, in the manner known from DE-GM 85 26 660.
  • the object of the invention is to develop a door closer of the type described above so that its overflow valve can meet the requirements mentioned and it is nevertheless characterized by a simple and compact and preferably also easy to assemble design.
  • the invention proposes that the door closer is designed according to the preamble of claim 1 in accordance with the characterizing part of this claim.
  • Its overflow valve is designed as a combination valve and is not only characterized by its simple design, but also by its particular robustness. It can be built relatively compact and installed relatively easily.
  • the opening of the overflow path or the overflow valve at the beginning of the closing end movement of the door takes place in a controlled manner in the desired manner, because the closure of the overflow valve strikes the facing end of the overrun member.
  • the valve closure member thus remains stationary while the valve housing of the overflow valve moves further by the intended amount.
  • the load spring of the valve closure member is then tensioned.
  • the loading spring of the closure member strives to move the latter into the closed position as soon as the damping piston has moved a movement corresponding to the closing end movement, but it is kept open via the overflow valve due to the hydraulic connection between the front and the rear hydraulic chamber.
  • the damping piston is moved during the opening movement of the door, an excess pressure is created in the rear hydraulic chamber, which keeps the closing element open.
  • This pressure must pass through a suitable channel from the rear hydraulic chamber into the valve chamber which serves as the inflow chamber when the medium flows from the rear hydraulic chamber into the front hydraulic chamber be directed. Via the valve seat, the medium then passes from this inflow space into the outflow space of the valve, which is formed by the front hydraulic space when the door is opened.
  • the flow path through the overflow valve is flowed through in the opposite direction when the opened door is forced shut by a user.
  • an overpressure is formed in the front hydraulic chamber, which opens the closure member against the force of its closing spring.
  • the medium can now flow from the front hydraulic chamber via the valve seat and the channel of the overflow valve to the rear hydraulic chamber.
  • the overflow valve closes and the further closing movement then takes place exclusively via the throttle device with at least one throttle valve and at least one throttle channel.
  • a further development of the invention provides that the closure member of the overflow valve is provided with at least one overflow channel which hydraulically connects the rear hydraulic chamber with the valve chamber forming the outflow chamber of the overflow valve when the valve flows from the front to the rear hydraulic chamber.
  • the Üverströmkanal extends essentially in the longitudinal direction of the closure member or in the direction of displacement, but it may be necessary that it runs curved or angled.
  • Another variant of the invention is characterized in that the overrun member passes through the valve seat of the overflow valve when the door is closed.
  • a concentric arrangement is particularly expedient here.
  • a further embodiment of the invention consists in that the overrun member is mounted in a sealed, displaceable and fixable manner in the housing base.
  • the need for an adjustability of the angle for the final closing movement of the door can thereby be remedied. It is expedient to use a bolt with a tapered run-on end.
  • a further development of the invention provides that the overrun member at its end facing away from the overflow valve has an approach engaging in a control groove of an adjusting member, the control groove converting an adjusting movement of the adjusting member into a displacement movement of the overrun member.
  • This displacement movement runs in the same direction as that of the valve closure member.
  • the overrun member is displaced towards the control valve and away from the control valve with a counter-rotating movement.
  • this value is specified as a fixed value.
  • a particularly preferred embodiment of the invention is characterized in that the adjusting member is a rotating member mounted in the housing base, the axis of rotation of which runs parallel to the longitudinal axis of the essentially bolt-like outlet member, the adjusting member being provided with a helical control groove into which a thickened head of a control attachment of the Adjusting member engages.
  • the control approach can consist, for example, of this thickened head and, in particular, a central retaining pin.
  • the adjusting member is provided with an externally accessible receptacle for an adjusting tool, in particular with a screwdriver slot. This means that the end closing movement of the door can be easily adjusted by every buyer of this door closer.
  • the exemplary embodiment is an overhead door closer, but the invention is not restricted to this.
  • a damping piston 2 and a spring piston 3 can be pushed back and forth in the direction of the double arrow 4 in a cylinder housing 1. They are rigidly connected to one another via a piston rod 5 with a rack 6. Those of a pinion 7 engage in the teeth of the rack. The pinion shaft is led outwards, and the door to be closed is connected to it in a rotationally fixed manner.
  • the piston-rack unit is displaced by turning the pinion 7, for example in the direction of arrow 8, from left to right, as a result of which two concentrically arranged restoring compression springs 9 and 10, which are supported at one end on the spring piston, are tensioned. These springs rest against a spring plate 11, which is located in the area of the free end of a spring cover 12.
  • the cylinder housing 1 is tightly closed by a plug-like housing base 13. It is screwed in and sealed against the cylinder housing by means of a sealing ring 14.
  • a front hydraulic chamber 15 is defined by the housing base 13 and the damping piston 2 and the cylinder housing 1.
  • a rear hydraulic chamber 16 extends from the damping piston 2 to the bottom of the spring cover 12. It receives both the piston rod 5 and the spring piston 3 and the return compression springs 9, 10. Because the rear hydraulic chamber 16 becomes smaller when the front hydraulic chamber 15 is enlarged, the medium located in the latter, in particular hydraulic oil, must be able to flow past and / or through the spring piston 3.
  • a symbolically drawn valve unit 17 can be installed in the spring piston 3. Otherwise, the damping piston 2, the spring piston 3 and the piston rod 5 could be viewed together as a single piston of the door closer provided with a recess, the pinion 7 projecting into this recess.
  • the spring cover 12 forms part of the door closer housing, and it is connected to the cylinder housing 1 at this point via a thread 18 and a corresponding seal.
  • Fig. 1 shows the piston or pistons 2 and 3 in their initial displacement position with the door closed. If the latter is opened, as mentioned, this leads to a rotation of the pinion in the direction of arrow 8 and to a displacement movement of the pistons 2 and 3 in the direction of arrow 19. Not only are the springs 9 and 10 tensioned, but also oil is extracted pressed out the rear hydraulic chamber 16 and transported into the front hydraulic chamber 15.
  • Correspondingly dimensioned cross sections allow a rapid overflow from space 16 into space 15.
  • the medium flows through an overflow channel 20 of a closure member 21 of an overflow valve 22.
  • it runs centrally to the geometric axis of the closure member 21 or overflow valve 22, while its left part runs obliquely to this.
  • This has to do with the fact that the closure member 21 has a ball 24 directly interacting with the valve seat at its end associated with the valve seat 23.
  • the central part of the overflow channel consists of two parts, because the valve closure member 21 is itself made up of two elements.
  • the larger element 25 receives the ball 24 and the angular channel, while the smaller element 26 has only one central channel piece and is connected to the larger one via a thread 27.
  • valve travel Both consist of a shaft with an outer collar each.
  • a sealing ring in particular an O-ring 28, is let into the outer collar of the larger element 25. It seals against a bore in the valve housing 29. This is screwed into the damping piston 2.
  • the threaded connection is designated 30.
  • a sealing ring at the transition from the shaft to the outer collar of the sleeve-shaped housing 29 bears the reference number 31.
  • a support disk 32 is inserted for one end of a load spring 32, the other end of which is supported on the outer collar of the larger element 25. It also enables assembly.
  • the support disc 32 can be held in place by flanging, and it takes the waistband of the small one Elements 26.
  • a central bore at the left end of the valve housing 29 in FIG. 2 forms the valve seat 23 mentioned on the inside, and it is penetrated from the outside in by the pin-like end 35 of an overrun member 34.
  • the loading spring 33 is then tensioned or tensioned more than in the closed position of the valve 22.
  • the valve seat 23 moves in the direction of the closure member or ball 24. In fact, however, it migrates the ball 24 or the closure member 21 due to the force of the spring 33 against the valve seat 23.
  • the closing angle from which the door closes unthrottled can now be set within a predetermined range.
  • the ramp member 34 is coupled to an adjusting member 36. 2, it is rotatably and immovably mounted in the housing base 13.
  • a snap ring 38 engages in mutually opposite grooves of the housing base and the adjusting member 36.
  • the latter is equipped with a helical control groove 39, in which a thickened head 40 of a control shoulder 41 engages at the left end of the ramp member 34 in FIG. 2.
  • the control lug 41 consists of a thin, central shaft.
  • the setting member 36 is equipped with a receptacle 42 accessible from the outside for an adjusting tool, in particular with a slot, cross slot or hexagon socket.
  • a receptacle 42 accessible from the outside for an adjusting tool, in particular with a slot, cross slot or hexagon socket.
  • the adjusting member 36 is displaced in the direction of arrow 43 or in the opposite direction and thus an earlier or later opening of the overflow valve 22.
  • the overrun member 34 is opposite its sliding bore in the housing base 13 by means of a sealing ring , in particular an O-ring 44, sealed. It can also be seen from Fig. 2 that the axis of rotation of the adjusting member 36 runs parallel to the axis of displacement of the overrun member 34 and the valve closure member 21, but is laterally offset from this axis.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP89101415A 1988-02-13 1989-01-27 Ferme-porte Expired - Lifetime EP0328917B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8801898U DE8801898U1 (de) 1988-02-13 1988-02-13 Türschließer
DE8801898U 1988-02-13

Publications (2)

Publication Number Publication Date
EP0328917A1 true EP0328917A1 (fr) 1989-08-23
EP0328917B1 EP0328917B1 (fr) 1990-11-28

Family

ID=6820667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101415A Expired - Lifetime EP0328917B1 (fr) 1988-02-13 1989-01-27 Ferme-porte

Country Status (2)

Country Link
EP (1) EP0328917B1 (fr)
DE (2) DE8801898U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293633A2 (fr) * 2001-09-13 2003-03-19 GEZE GmbH Ferme-porte

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012100924A1 (de) * 2012-02-06 2013-08-08 Dorma Gmbh + Co. Kg Türbetätiger mit mehrteiligem Gehäuseaufbau
EP2924216B1 (fr) 2014-03-24 2017-05-03 Gretsch-Unitas GmbH Baubeschläge Ferme-porte
IT202100011669A1 (it) * 2021-05-06 2022-11-06 Colcom Group S R L Cerniera per la movimentazione girevole di una porta, un’anta o similare

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1965805A (en) * 1931-12-24 1934-07-10 David E Riggins Doorcheck
DE1149271B (de) * 1960-09-05 1963-05-22 Schuermann & Co Heinz Teleskoptuerschliesser
DE1759450A1 (de) * 1968-05-02 1971-06-03 Ver Baubeschlag Gretsch Co Obenliegender Tuerschliesser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1965805A (en) * 1931-12-24 1934-07-10 David E Riggins Doorcheck
DE1149271B (de) * 1960-09-05 1963-05-22 Schuermann & Co Heinz Teleskoptuerschliesser
DE1759450A1 (de) * 1968-05-02 1971-06-03 Ver Baubeschlag Gretsch Co Obenliegender Tuerschliesser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293633A2 (fr) * 2001-09-13 2003-03-19 GEZE GmbH Ferme-porte
EP1293633A3 (fr) * 2001-09-13 2006-01-25 GEZE GmbH Ferme-porte

Also Published As

Publication number Publication date
DE58900027D1 (en) 1991-01-10
EP0328917B1 (fr) 1990-11-28
DE8801898U1 (de) 1988-03-24

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