EP2518251A2 - Ferme-porte - Google Patents

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Publication number
EP2518251A2
EP2518251A2 EP12165459A EP12165459A EP2518251A2 EP 2518251 A2 EP2518251 A2 EP 2518251A2 EP 12165459 A EP12165459 A EP 12165459A EP 12165459 A EP12165459 A EP 12165459A EP 2518251 A2 EP2518251 A2 EP 2518251A2
Authority
EP
European Patent Office
Prior art keywords
piston rod
door closer
housing
piston
seal
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Withdrawn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
EP12165459A
Other languages
German (de)
English (en)
Other versions
EP2518251A3 (fr
Inventor
Thorsten Bantle
Benjamin Wörner
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 EP2518251A2 publication Critical patent/EP2518251A2/fr
Publication of EP2518251A3 publication Critical patent/EP2518251A3/fr
Withdrawn legal-status Critical Current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
    • E05F3/12—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
    • E05F3/104—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 cam-and-slide 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
    • E05Y2201/499—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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/704—Worm wheels
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/10—Additional functions
    • E05Y2800/12—Sealing
    • 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 claim 1.
  • the DE 34 11 189 A1 discloses an automatic door closer with a detachable with a door wing output shaft which is rotatable from a closed position in both directions and within the housing with a Hubkurvenin form fit between rollers of a longitudinally movable carriage, to which a memory forming spring arrangement and the piston of a hydraulic damping device attack.
  • the interior of the door closer housing is divided into two separate by the piston pressure medium spaces.
  • the pressure medium spaces are connected to each other by separate channels, each with a closable throttle valve to flow out of the pressure medium from the shrinking when closing the door pressure chamber and a piston arranged in the opening movement of the door opening check valve.
  • the separate channels are alternately blocked and released by a piston displaceable by the spool, wherein in each channel a pressure medium spaces, if necessary, connecting safety valve is connected.
  • the stroke end position of the spool is adjustable with respect to the piston, whereby the transition of two different damping regions of the closing movement is adjustable.
  • the door closer has no device for damping the opening movement.
  • the invention has for its object to form a door closer with a device for an opening loss. It is a further object of the invention to avoid a reduction of the efficiency at the beginning of the opening movement of the door.
  • the position of the piston of a door closer is directly related to the opening angle of the door, since the output shaft of the door closer via a gear assembly, for example with a cam, is connected to the piston, wherein the rotational movement of the output shaft of the gear assembly is converted into a sliding movement of the piston , and vice versa.
  • a gear assembly for example with a cam
  • the piston position causes an opening or closing of a transfer channel, which activates the opening damping.
  • a transfer channel which activates the opening damping.
  • the hydraulic fluid in the door closer can flow only in the case of a movement of the piston in the opening direction via an externally adjustable throttle valve for the opening damping arranged in the housing of the door closer.
  • the dampening of the door prevents the door from slamming against, for example, a wall, a piece of furniture or the like, thereby preventing damage to both the door panel and the wall or furniture.
  • the starting point of the opening damping is only from a certain door opening angle to initially open the door undamped.
  • this seal the Achsraums only immediately before the onset of damping, and thus immediately before the onset of pressure rise in the spring chamber, activated by a piston rod seal is brought into operative position by the movement of the piston rod, the axis space against the Spring chamber seals.
  • the door closer 1 comprises a housing 2, in which a cam disc 3 is arranged non-rotatably on an axle 4 which forms the output shaft of the door closer 1 and is rotatably mounted in the housing 2.
  • a slidable along the door closer 1 slide 5 is further provided, which at one end has a rotatably mounted roller 6, which cooperates with the contour of the cam 3.
  • a piston rod 7 is fixed, which has a piston 8 at its end facing away from the carriage 5 end.
  • the piston 8 is sealed in the formed in this area as a cylindrical bore housing 2 against the inner wall, so that on the one hand of the piston 8, a spring chamber 12 is formed.
  • the bore in the housing 2 is closed at the end with a closure cap 13, whereby a piston chamber 14 is formed between the piston 8 and the closure cap 13.
  • the interior of the housing 2 is filled in a known manner with hydraulic fluid, so that in the spring chamber 12 and the piston chamber 14 is hydraulic fluid.
  • the spring chamber 12 is followed by a likewise filled with the hydraulic fluid Achsraum 15, in which the above-described parts of the output shaft, such as cam 3, axis 4 with carriage 5 and roller 6 are arranged, which in a door closer 1 according to the prior art Spring chamber is not sealed.
  • a compression spring 9 is arranged, which is supported on the piston 8 and on a spring plate 10.
  • the spring plate 10 is operatively connected to a Sch thoroughlyverstell till 11, which allows a displacement of the spring plate 10 with respect to the piston 8 by rotating an accessible from outside the housing 2 spindle 23, whereby the compression spring 9 can be biased to the closing force of the door closer 1 on to adapt to different door weights.
  • the spindle 23 engages in a pinion 24, which is penetrated by the piston rod 7.
  • the pinion 24 has a threaded extension 25, wherein the opposite to the housing 2 against Turning secured spring plate 10 along the extension of the extension 25 is adjustable.
  • FIG. 2a to 3b is, in part as a section, in each case a vertical section through the door closer 1 according to FIG. 1 shown.
  • the required in a known manner to influence the opening and closing behavior of the door closer 1 overflow 16, 16a, 16b, 20, 20a, 20b, check valves 17, 21 a, 21 b and throttle valves 18, 19, 22, in the wall of the housing 2 are shown in the figures schematically outside of the housing, since they lie in other sectional planes of the housing 2.
  • the overflow channels 16, 16a, 16b, 20, 20a, 20b open as shown in the associated spaces in the housing 2 and allow an overflow of the hydraulic fluid depending on the direction of movement of the piston 8 and thus the flow direction of the hydraulic fluid.
  • a check valve 17 is provided, wherein in the overflow 16a, a throttle valve 18 for the closing damping and in the overflow 16b, a throttle valve 19 are arranged for the final impact. This is a controlled overflow of the hydraulic fluid between the enlarging spring chamber 12 and the decreasing piston chamber 14 is given in the closing direction.
  • a likewise branching overflow channel 20 is provided, wherein in the overflow 20a, a check valve 21 a and a throttle valve 22 are arranged for the opening damping, thereby influencing the overflow of the hydraulic fluid in the opening direction of the decreasing spring chamber 12 in the enlarging piston chamber fourteenth given is.
  • the other overflow channel 20b connects the piston chamber 14 and the spring chamber 12 directly without a throttle valve and bridges the overflow channel 20a with the throttle valve 22 for the opening damping.
  • a check valve 21 b is further arranged, which blocks the overflow passage 20b during the closing movement, in order not to bridge the action of the throttle valves 18, 19 for the closing damping or the final impact.
  • This overflow channel 20b opens, in the initial position of the piston 8, close to the piston 8 in the spring chamber 12 and is closed by the piston 8 during its movement in the opening direction.
  • the position of the junction of the overflow 20b in the spring chamber 12 determines the point of application of the opening loss.
  • Due to the throttle valve 22 is formed when opening, wherein the piston 8 is moved against the compression spring 9, a pressure in the spring chamber 12 and the adjoining axle housing 15. Since a pressure increase in the axle housing 15 is not desired to a simpler sealing of the bearing of the output shaft To be able to choose housing 2 to the outside, is provided at least during the increase in pressure in the spring chamber 12, a seal between the spring chamber and the axle housing 15. However, a seal, in particular the piston rod 7, deteriorates the efficiency due to the friction between the seal and the piston rod 7, which at least at the beginning of the opening movement, i. at small door opening angles, it is to be avoided to allow easy opening of the door.
  • the sealing of the piston rod 7 therefore takes place at least shortly before the opening damping by closing the mouth of the overflow 20b in the spring chamber 12 by the piston 8 is effective, whereby the efficiency of the door closer 1 remains unabated up to this door opening angle.
  • the Fig. 2a to 2d show a first embodiment of a region-wise sealing of the piston rod 7 depending on the door opening angle and the position of the associated with this piston.
  • 8 Fig. 2a shows the door closer 1 in its initial position with the door closed
  • the Fig. 2b the area of the seal of the piston rod 7 in the cut-enlarged shows.
  • the closing force adjustment 11 is arranged, which adjoins an axle space seal 26 in the region of the pinion 24 to the housing 2 out.
  • a connection between the spring chamber 12 and the Achsraum 15 is along the piston rod 7 through the pinion 24 with its extension 25.
  • the piston rod 7 To seal the piston rod 7 is in the bore in the pinion 14, which is penetrated by the piston rod, an annular piston rod seal 27 in one Groove 29 arranged.
  • the piston rod 7 has a taper 28 which is in the starting position of the door closer 1 in the region of the piston rod seal 27, whereby this is not applied to the piston rod 7 and thus no seal takes place ,
  • the taper 28 has a certain longitudinal extent along the piston rod 7, so that during an opening movement in which the piston rod 7 moves in the figure to the right, the piston rod 7 is initially free, ie without being in contact with the piston rod seal 27 moved, which advantageously no friction between the piston rod seal 27 and the piston rod 7, which could reduce the efficiency of the door closer 1.
  • the piston rod 7 is sealed by the provided with a run-on slope taper 28 in the outer diameter of the piston rod 7 passes, whereby the piston rod seal 27 sealingly comes into contact with the piston rod 7 in its operative position, as in the Figures 2c and 2d is shown.
  • the mouth of the overflow channel 20b is advantageously located immediately in front of the right-moving piston 8, wherein the region of the taper 28 has just passed the piston rod seal 27 and this sealingly rests on the piston rod 7.
  • FIGS. 3a, 3b is another embodiment of a seal of the piston rod 7 depending on the door opening angle corresponding to FIGS. 2a . 2c shown in the neckline, the Fig. 3a the starting position of the door closer 1 with the door closed and the Fig. 3b shows the position at which the sealing of the piston rod has just been done after using the opening damping.
  • the closing force adjustment 11 is arranged between the spring chamber 12 and the axle chamber 15, which adjoins an axle space seal 26 in the region of the pinion 24 to the housing 2 out.
  • the connection between the spring chamber 12 and the Achsraum 15 is also along the piston rod 7 through the pinion 24 with its extension 25 therethrough.
  • a groove 29 is likewise provided, in which the annular piston rod seal 27 is arranged.
  • the piston rod seal 27 is outside the range of the pinion 24 with the extension 25 of the closing force adjustment 11. Moves the piston rod 7 due to the door opening movement in the figure to the right
  • the seal between the spring chamber 12 and the axle chamber 15 is made by the piston rod seal 27 on the piston rod 7 against the bore in the closing force adjustment 11 and in the extension 25th
  • the arrangement for sealing the spring chamber 12 with respect to the axle space 15 can also be provided between the piston rod 7 and the housing 2, for example at the taper of the housing 2 in the region of the axle space seal 26, which can then be omitted. It can instead of the closing force adjustment 11 another receiving element, which is penetrated by the piston rod 7, be arranged, which is used for sealing.
  • the invention is not limited to a seal in the region of the closing force adjustment 11. It is thus also possible to form a door closer 1, which has no closing force adjustment 11, with the inventive door opening angle-dependent seal between the spring chamber 12 and the axle chamber 15.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Fluid-Damping Devices (AREA)
EP12165459.4A 2011-04-29 2012-04-25 Ferme-porte Withdrawn EP2518251A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011017794A DE102011017794B4 (de) 2011-04-29 2011-04-29 Türschließer

Publications (2)

Publication Number Publication Date
EP2518251A2 true EP2518251A2 (fr) 2012-10-31
EP2518251A3 EP2518251A3 (fr) 2014-12-10

Family

ID=46045835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12165459.4A Withdrawn EP2518251A3 (fr) 2011-04-29 2012-04-25 Ferme-porte

Country Status (2)

Country Link
EP (1) EP2518251A3 (fr)
DE (1) DE102011017794B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966250A4 (fr) * 2013-03-04 2016-10-12 Ryobi Ltd Dispositif de fermeture de porte
IT202300003252A1 (it) * 2023-02-24 2024-08-24 Ol Mi S R L Cerniera per la movimentazione girevole di una porta, un’anta o similare
WO2024176186A1 (fr) * 2023-02-24 2024-08-29 Ol.Mi S.R.L. Charnière pour le mouvement rotatif d'une porte, d'un battant ou similaire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411189A1 (de) 1984-03-27 1985-10-10 Dorma-Baubeschlag Gmbh & Co Kg, 5828 Ennepetal Selbsttaetiger tuerschliesser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449789A (en) * 1966-10-03 1969-06-17 Norris Industries Door closer and check
DE8524727U1 (de) * 1985-08-16 1986-12-18 Gretsch-Unitas GmbH Baubeschläge, 7257 Ditzingen Türschließer
KR940000715A (ko) * 1992-06-08 1994-01-03 이문현 개량형 플로우 힌지

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411189A1 (de) 1984-03-27 1985-10-10 Dorma-Baubeschlag Gmbh & Co Kg, 5828 Ennepetal Selbsttaetiger tuerschliesser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966250A4 (fr) * 2013-03-04 2016-10-12 Ryobi Ltd Dispositif de fermeture de porte
IT202300003252A1 (it) * 2023-02-24 2024-08-24 Ol Mi S R L Cerniera per la movimentazione girevole di una porta, un’anta o similare
WO2024176186A1 (fr) * 2023-02-24 2024-08-29 Ol.Mi S.R.L. Charnière pour le mouvement rotatif d'une porte, d'un battant ou similaire

Also Published As

Publication number Publication date
EP2518251A3 (fr) 2014-12-10
DE102011017794A1 (de) 2012-10-31
DE102011017794B4 (de) 2013-01-31

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