EP1293633B1 - Türschliesser - Google Patents

Türschliesser Download PDF

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Publication number
EP1293633B1
EP1293633B1 EP02020109A EP02020109A EP1293633B1 EP 1293633 B1 EP1293633 B1 EP 1293633B1 EP 02020109 A EP02020109 A EP 02020109A EP 02020109 A EP02020109 A EP 02020109A EP 1293633 B1 EP1293633 B1 EP 1293633B1
Authority
EP
European Patent Office
Prior art keywords
valve
valve body
piston
door closer
bore
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.)
Expired - Lifetime
Application number
EP02020109A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1293633A2 (de
EP1293633A3 (de
Inventor
Rudi Feucht
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.)
Geze GmbH
Original Assignee
Geze GmbH
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 Geze GmbH filed Critical Geze GmbH
Publication of EP1293633A2 publication Critical patent/EP1293633A2/de
Publication of EP1293633A3 publication Critical patent/EP1293633A3/de
Application granted granted Critical
Publication of EP1293633B1 publication Critical patent/EP1293633B1/de
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
    • 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 according to the preamble of patent claim 1.
  • the door closer has a housing in which a piston is guided linearly displaceable.
  • a designed as a closing spring mechanical energy storage acts for the automatic closing of the door leaf on a trained as a closer shaft output member to which a force-transmitting linkage is connected.
  • a hydraulic damping device causes a muted closing of the door leaf, wherein the housing interior is filled with a damping medium and the piston the housing interior liquid-tightly divided into two housing chambers.
  • the damping medium now flows through an unillustrated damping valve, which is arranged, for example, in an overflow channel extending in the housing, out of the now smaller housing chamber into the other housing chamber.
  • the door can be "overpressed” during the closing process, ie it can be moved manually faster in the closing direction, as it actually provides the damping device.
  • a large overpressure of the only slightly compressible damping medium arises in the housing chamber, which shrinks when it closes.
  • a pressure relief valve is arranged in the piston, which is effective at a certain pressure of the damping medium and allows the drainage of the damping medium in the other housing chamber.
  • An embodiment of the DE 198 08 292 A1 shows a separate arrangement of overflow valve and pressure relief valve in the piston. This embodiment is time-consuming and expensive to manufacture, as in the piston several holes must be introduced and the valves are mounted separately.
  • Another embodiment of the DE 198 08 292 A1 shows a piston with a frontally mounted on the piston cap-shaped molding in which a combined valve (combination of check valve and pressure relief valve) is arranged.
  • this embodiment is time-consuming and expensive to manufacture, since the production and assembly of a separate molding for receiving the valve is required and the piston for the assembly of the molding must be pretreated (twisting the piston to create a smaller cross-section in the region of the molding , additional hole to prevent rotation).
  • the invention has for its object to provide a door closer with pressure relief valve, which is simple and inexpensive to produce.
  • the valve body has locking tongues, which cooperate latching with the piston bore; This leads to a serious simplification of the assembly and significantly reduces the manufacturing costs.
  • valve can be completely preassembled outside the piston: A valve insert can be inserted in the valve body after inserting the valve cone and a spring be inserted, wherein the connection between the valve core and the valve body may be formed as a latching connection. This also simplifies assembly and leads to a further reduction in manufacturing costs.
  • the pre-assembled valve is finally inserted in a very simple manner, namely latching into the piston bore.
  • the valve can also be modular: It can be provided to cover all applications, a single, uniformly designed valve body.
  • various, adapted to the particular application parts in particular different valve inserts and / or different springs and / or different valve cone, can be used.
  • the springs may be designed to have different lengths depending on the response pressure of the pressure relief valve, wherein a suitable valve insert may be provided for each spring length. Due to this modular design of the valve, the manufacturing costs, in particular tool and / or storage costs can be further reduced.
  • valve body e.g. the valve body, the valve core and / or the valve plug
  • plastic injection molding
  • the in FIG. 1 shown door closer 1 has a housing 2 with a linearly displaceably guided therein piston 3.
  • the piston 3 is provided in its interior with a toothing 8, in which the gear 9 of the housing 2 of the door closer 1 rotatably mounted closer shaft 10 meshes.
  • a closing spring designed as a helical compression spring 7 is arranged in the left housing chamber 6 and acted upon - on the housing, for example on the left housing closure not shown here - supporting the piston 3 in the illustrated right position. This position corresponds to the closed position of the door leaf, which is connected to the closer shaft 10 of the door closer 1 via a force-transmitting linkage, such as scissor arm or sliding arm, or directly.
  • the piston 3 moves - actuated by the rotation of the closer shaft 10 in a clockwise direction - to the left, wherein the closing spring 7 is compressed.
  • the damping medium displaced from the left-hand housing chamber 6 flows through the left-hand piston bore 13 into the piston interior 5 and further through the valve 15 arranged in the region of the right-hand end side of the piston 3 in the right-hand piston bore 14, the structure and mode of operation of which are described in detail in the following figures , in the right housing chamber. 4
  • the compressed closing spring urges the piston 3 to the right; the closer shaft 10 is in this case counterclockwise turned so that the connected door is moved to its closed position. Since the valve 15 is closed at the now existing in the right housing chamber 4 overpressure, the damping medium flows through a overflow channel, not shown here, which also contains a valve, not shown, to ensure the closing damping, damped in the left housing chamber 6 and in the piston interior 5. This ensures that the door does not close abruptly, but is transferred damped in its closed position.
  • the damping medium now standing under greater overpressure is removed from the right-hand housing chamber 6 through the valve 15 into the piston interior 5.
  • the valve 15 is designed so that it opens only at a relatively large pressure in the right housing chamber 6, which arises when manually overpressing the door leaf, while it is closed during the normal damped closing operation of the door leaf.
  • FIG. 2 shows a section of the piston 3 in the region of its right front side.
  • the valve body 18 of a valve 15 designed as a combination valve is arranged in a frontal piston bore 14.
  • a valve insert 25 is arranged within the valve body 18.
  • a supported in the valve insert 25, designed as a helical compression spring spring 27 acts on a linearly displaceable poppet 24 against a present in the right end of the valve body 18 bore 23.
  • the valve insert 25 also has on its left front side a bore 28 to the piston interior 5.
  • the valve body 18 of the valve 15 is disposed linearly displaceable within the piston bore 14.
  • the figure shows the valve body 18 in its left end position.
  • a fluid-tight attached to the valve body 18, designed as a ring seal seal 19 is located in this end position of the valve body 18 close to a countersink 16 of the piston bore 14 at.
  • the valve body 18 assumes this position in the overpressure of the damping medium in the right-hand housing chamber 4 which arises during the damped closing operation. That under pressure standing damping medium urged by the bore 23 of the valve body 18 against the spring-loaded valve cone 24.
  • valve cone 24 When manually overpressing the door leaf in the closing direction of the overpressure of the damping medium exceeds the force of the spring 27; the valve cone 24 deviates to the left and gives the bore 23 for flowing through the damping medium in the direction of the bore 28 in the valve insert 25 and thus to the piston interior 5 free.
  • the seal 19 can optionally be compressed more or less.
  • the valve body 18 is formed so that it abuts against the countersink 16 of the piston bore 14 at very high pressure in the right housing chamber 4.
  • a filter disk 22 is arranged in the valve body 18, which receives the foreign body possibly present in the flow-through damping medium.
  • valve body 18 To the right, the displacement movement of the valve body 18 is limited by locking tongues 20, which engage in a recess 17 of the piston bore 14.
  • the valve body 18 assumes this position at positive pressure in the piston interior 5.
  • the seal 19 is no longer in contact with the countersink 16 of the piston bore 14 in this position of the valve body 18, the damping medium from the piston interior 5 by the in FIG. 4 shown channels flow unattenuated in the right housing chamber 4.
  • the door connected to the door closer 1 door can thus be opened undamped against the force of the closing ßerbfeder.
  • valve 15 works identically as described in the previous embodiment. Modified over the previous embodiment, the attachment of the valve core 25 in the valve body 18.
  • the valve body 18 has recesses 21, in which latching cams 26 of the valve insert 25 latchingly engage.
  • FIG. 4 a cross section through the valve body 18 is shown.
  • the valve body 18, which is actually round in cross section, has flattenings 29 which form channels with a flow cross section 30 with the inner wall of the piston bore 14. These channels are traversed by flowing from the piston interior 5 in the right housing chamber 4 damping medium.

Landscapes

  • Fluid-Damping Devices (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP02020109A 2001-09-13 2002-09-07 Türschliesser Expired - Lifetime EP1293633B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145200 2001-09-13
DE10145200.4A DE10145200B4 (de) 2001-09-13 2001-09-13 Türschließer

Publications (3)

Publication Number Publication Date
EP1293633A2 EP1293633A2 (de) 2003-03-19
EP1293633A3 EP1293633A3 (de) 2006-01-25
EP1293633B1 true EP1293633B1 (de) 2008-07-23

Family

ID=7698939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020109A Expired - Lifetime EP1293633B1 (de) 2001-09-13 2002-09-07 Türschliesser

Country Status (6)

Country Link
EP (1) EP1293633B1 (zh)
CN (1) CN1250857C (zh)
AT (1) ATE402312T1 (zh)
DE (2) DE10145200B4 (zh)
ES (1) ES2305165T3 (zh)
PT (1) PT1293633E (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116915B (fi) 2004-12-08 2006-03-31 Abloy Oy Venttiili
DE102005030756B4 (de) 2005-06-29 2010-04-08 Geze Gmbh Ventil für einen Antrieb eines Flügels einer Tür oder eines Fensters
DE102009022975A1 (de) 2009-05-28 2010-12-02 Dorma Gmbh + Co. Kg Ventil einer hydraulischen Türbetätigungsvorrichtung
DE102011055317A1 (de) * 2011-11-14 2013-05-16 Dorma Gmbh + Co. Kg Kolben für eine Türschließvorrichtung
DE102013102336A1 (de) * 2013-03-08 2014-09-11 Dorma Gmbh + Co. Kommanditgesellschaft Überdruckventil für eine Türschließvorrichtung
JP6002070B2 (ja) * 2013-03-26 2016-10-05 リョービ株式会社 ドアクローザ
CN103306564B (zh) * 2013-06-25 2016-03-02 苏州市富尔达科技股份有限公司 闭门器
GB2577542B (en) * 2018-09-28 2021-11-03 Assa Abloy Ltd Door-closer
EP4053368A1 (en) * 2021-03-01 2022-09-07 dormakaba Deutschland GmbH Door actuator and door unit
DE102022210953A1 (de) * 2022-10-17 2024-04-18 Geze Gmbh Überdruckventil für einen Türantrieb

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124632A1 (en) * 1971-05-18 1972-11-30 Ver Baubeschlag Gretsch Co Piston sealing ring - esp of polyamide open with overlapping joint
DE2405265A1 (de) * 1974-02-04 1975-08-14 Ver Baubeschlag Gretsch Co Ansaugventil fuer einen tuerschliesser
FI62401C (fi) * 1976-12-13 1982-12-10 Waertsilae Oy Ab Doerrstaengare
GB2158148B (en) * 1984-04-27 1988-03-02 Jebron Ltd Door closer
DE8526660U1 (de) * 1985-09-18 1987-01-22 Gretsch-Unitas GmbH Baubeschläge, 7257 Ditzingen Türschließer
DE8801898U1 (de) * 1988-02-13 1988-03-24 Gretsch-Unitas GmbH Baubeschläge, 7257 Ditzingen Türschließer
IT1241880B (it) * 1990-07-20 1994-02-01 Mab Masellis S P A Chiudiporta con dispositivo interno, idrostatico, per il blocco della porta in posizione d'apertura.
DE19808292A1 (de) * 1998-02-27 1999-09-02 Geze Gmbh & Co Türschließer

Also Published As

Publication number Publication date
CN1407201A (zh) 2003-04-02
PT1293633E (pt) 2008-09-15
DE10145200A1 (de) 2003-04-10
EP1293633A2 (de) 2003-03-19
DE10145200B4 (de) 2015-09-10
CN1250857C (zh) 2006-04-12
ES2305165T3 (es) 2008-11-01
DE50212527D1 (de) 2008-09-04
ATE402312T1 (de) 2008-08-15
EP1293633A3 (de) 2006-01-25

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