EP4180608B1 - Ferme-porte - Google Patents

Ferme-porte Download PDF

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Publication number
EP4180608B1
EP4180608B1 EP22205204.5A EP22205204A EP4180608B1 EP 4180608 B1 EP4180608 B1 EP 4180608B1 EP 22205204 A EP22205204 A EP 22205204A EP 4180608 B1 EP4180608 B1 EP 4180608B1
Authority
EP
European Patent Office
Prior art keywords
locking body
valve
piston
drive
door closer
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
EP22205204.5A
Other languages
German (de)
English (en)
Other versions
EP4180608A1 (fr
Inventor
Vladimir Pugin
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 Baubeschlaege
Original Assignee
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.)
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Publication of EP4180608A1 publication Critical patent/EP4180608A1/fr
Application granted granted Critical
Publication of EP4180608B1 publication Critical patent/EP4180608B1/fr
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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
    • E05F3/104—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
    • 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
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/236—Actuation thereof by automatically acting means using force or torque
    • 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
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • 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
    • E05Y2800/26—Form or shape
    • 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 the features of the preamble of claim 1.
  • Door closers of the type mentioned are known from the prior art, for example DE 20 2012 003 928 U1 . With such a door closer, it is possible to operate a door leaf so that it can be moved into the closed position starting from different opening angles.
  • the valves arranged in the damping pistons and drive pistons are important for the function of the door closer, to be able to reliably move a door leaf into the closed position, and for safety (overload situations). These are used to regulate the fluid flow between part of the with the fluid (e.g. a hydraulic oil) filled interior and another part of the interior of the door closer.
  • the overload valves on the drive piston and damping piston serve to reduce or avoid overload situations so that damage to the door closer can be prevented. If the design of the overload valves is simplified, there is often a risk of malfunctions, for example due to leaks.
  • the WO2019/076746 discloses a door closer with an overload valve.
  • the invention is based on the object of specifying a door closer with structurally simple yet reliably operating overload valves.
  • the invention solves this problem by a door closer with the features of claim 1.
  • the door closer is set up and/or intended to operate a leaf of a door, a window or the like.
  • the door closer has a closer shaft and a cam disc connected in a rotationally fixed manner to the closer shaft, the cam disc interacting, in particular via a drive contour, with a drive device comprising a drive piston and, in particular via a damping contour, with a damping device comprising a damping piston.
  • the drive piston and/or the damping piston each has/have an overload valve.
  • the overload valve each has a valve channel extending along a channel axis (formed in the relevant piston, ie in the drive piston or in the damping piston), a blocking body and a sealing seat.
  • the locking body is in accommodated in a locking body receiving section in the valve channel and rests against the sealing seat in a particularly sealing manner when the overload valve is closed.
  • the valve channel has an n-angular cross section (inner cross section) with n ⁇ 3 at least in the locking body receiving section, preferably along the entire valve channel.
  • the locking body is spherical or cylindrical. In other words, the locking body can be designed as a ball or rotating part or as a cylinder, in particular as a vertical circular cylinder.
  • the proposed design makes it possible to achieve precise positioning of the locking body relative to the sealing seat or the valve opening, whereby the cross sections of the locking body (spherical or cylindrical) and the locking body receiving section or the valve channel (n-angular with n ⁇ 3) are the same differ from each other, sufficient outflow openings remain in the corner areas of the n-angular cross section.
  • This is a particularly simple design that even allows the use of standard bodies, for example a ball.
  • the locking body is in particular matched to the locking body receiving section in such a way that the locking body can move in the valve channel along the locking body section, in particular can roll along the channel axis. This allows a so-called “Halo", as occurs with barrier bodies that cannot roll along the channel axis, can be avoided.
  • the blocking body can rest on at least two inner surfaces of the n-angular cross section of the blocking body receiving section or of the valve channel.
  • the locking body can be dimensioned such that the locking body is guided in the locking body receiving section orthogonally to the channel axis or laterally without play.
  • the blocking body is therefore axially movable along the channel axis, for example by rolling, but does not experience any lateral play. Due to the lack of lateral play, the locking body always lies centered on the sealing seat. This contributes to a reliable seal when the overload valve is closed.
  • n ⁇ 3 and n ⁇ 8 can contribute (3 ⁇ n ⁇ 8).
  • the inner surfaces of the valve channel provide sufficient contact surfaces for the blocking body, with sufficient outflow openings remaining in the corner areas.
  • valve channel can have a square cross section at least in the blocking body receiving section, preferably along the entire valve channel. This promotes flexibility with regard to the selection of locking bodies, since both spherical and cylindrical locking bodies can be guided using the square cross section.
  • the spherical locking body (ball) can rest on the four inner surfaces of the locking body receiving section or the valve channel.
  • the cylindrical locking body can rest on two opposing inner surfaces of the locking body receiving section or the valve channel if it is designed to be free of lateral play.
  • the blocking body receiving section or the valve channel has a square cross section, the corner regions between adjacent inner surfaces are designed as 90° angles. This maximizes the free cross section of the outflow openings.
  • the blocking body receiving section or the valve channel has a square cross section
  • optional roundings (“grooves”) can be formed in the corner regions between adjacent inner surfaces. This reduces the notch effect that occurs in the corner areas.
  • the production of the locking body receiving section or the valve channel can be simplified, for example by using milling tools with a larger diameter.
  • the length of the locking body receiving section along the channel axis can be dimensioned such that the locking body is displaced from the sealing seat (closed state of the overload valve) in the locking body receiving section by a distance of 0.6 mm to 1.3 mm (millimeters). (open state of the overload valve). This releases a sufficient opening cross-section between the sealing seat and the blocking body on the overload valve, so that the fluid contained in the interior of the door closer (e.g. an oil) can flow through the overload valve.
  • the fluid contained in the interior of the door closer e.g. an oil
  • the sealing seat can be formed by a shoulder in the valve channel, through which the cross section of the valve channel is reduced in relation to the locking body receiving section. This means you can use simple means Sealing seat can be formed.
  • the internal dimension or the internal diameter of the valve channel at the shoulder can be smaller than the external dimensions, for example the diameter, of the locking body.
  • the side edges of the locking body receiving section at the end of the locking body receiving section facing away from the sealing seat can be shaped, in particular embossed, in such a way that the cross section of the valve channel on the side edges is reduced in relation to the cross section of the locking body receiving section.
  • This makes it possible to form a structurally simple stop with which the displacement of the locking body away from the sealing seat can be limited.
  • a captive protection can be achieved for the locking body.
  • the cross section of the valve channel is reduced at the side edges in relation to the cross section of the locking body receiving section in particular in such a way that the locking body cannot get out of the locking body receiving section at the end facing away from the sealing seat.
  • the drive piston can face a pressure chamber on the drive side with its piston crown and/or the damping piston can face a pressure chamber on the damping side with its piston crown.
  • the opening direction of the overload valve of the drive piston faces the drive-side pressure chamber (valve opens towards the drive-side pressure chamber).
  • the opening direction of the overload valve of the damping piston faces the pressure chamber on the damping side (valve opens towards the pressure chamber on the damping side). This means that an excess pressure prevailing in the interior, in particular between the damping piston and the drive piston be reduced to the pressure chamber on the damping side or to the pressure chamber on the drive side.
  • the closer shaft is arranged in particular between the drive piston and damping piston (in a so-called “gear space"), with the piston crown of the drive piston and the piston crown of the damping piston each facing away from the closer shaft.
  • the overload valves can each open towards the drive-side pressure chamber or the damping-side pressure chamber. This makes it possible to relieve pressure in the gearbox compartment.
  • the drive piston and/or the damping piston can each have a control valve that is preloaded, in particular spring-loaded, in the closed position, the control valve being arranged in a further valve channel (formed in the piston in question, i.e. in the drive piston or in the damping piston) and on Piston crown opens out, wherein the control valve has an opening direction that faces away from the piston crown.
  • the control valve(s) open away from the piston crown and thus towards the transmission chamber.
  • the control valves each allow fluid (e.g. an oil) to flow back from the drive-side pressure chamber or from the damping-side pressure chamber into the transmission chamber.
  • FIG. 1 A door closer is shown, which is designated overall by the reference number 10.
  • the door closer 10 is used to operate, in particular to close, a leaf of a door (not shown).
  • the door closer 10 has a door closer housing 12, which extends essentially along a door closer axis 14.
  • the door closer housing 12 is closed at its side ends by means of closure covers 16, 18. Furthermore, the door closer housing 12 is filled with a fluid, for example a hydraulic oil (not shown in detail).
  • the door closer 10 has a closer shaft 20, which is arranged in a gear room 22 of the door closer 12.
  • the closer shaft 20 extends along a Closer shaft axis 24, which is preferably oriented orthogonally to the door closer axis 14.
  • the closer shaft 20 is rotatably mounted on the door closer housing 12 about the closer shaft axis 24.
  • the closer shaft 20 has a cam disk 26 which is connected to the closer shaft 20 in a rotationally fixed manner.
  • the cam 26 in turn has a drive contour 28 and a damping contour 30.
  • the closer shaft 20 has engagement sections 36 protruding from the door closer housing 12 at its output-side ends, which are designed as a polygon, for example as a square.
  • the closer shaft 20 can be coupled to a leaf of a door via the attack sections 36 by means of a closer linkage (not shown).
  • the closer linkage can, for example, be guided in a leaf-side slide rail.
  • the door closer 10 also includes a drive device 38, which is arranged between the closer shaft 20 and a first (drive-side) closure cover 16 in the door closer housing 12 (in Fig.1 right).
  • the drive device 38 has a drive piston 40 (spring piston) which is slidably guided on the inner wall of the door closer housing 12 along the door closer axis 14 along the double arrow 44.
  • the drive piston 40 is arranged on the closer shaft side.
  • the drive piston 40 and the first closure cover 16 are spaced apart from one another along the door closer axis 14 arranged and, together with the door closer housing 12, delimit a drive-side pressure chamber 46.
  • Valve channels are formed in the drive piston 40, via which the drive-side pressure chamber 46 can be fluidly connected to the gearbox chamber 22. This will be described further below.
  • a spring 48 in particular a compression spring, is arranged in the drive-side pressure chamber 46.
  • a further spring 50 in particular a compression spring, can be arranged in the drive-side pressure chamber 46, which is connected in parallel to the spring 48.
  • the further spring 50 is arranged radially within the spring 48.
  • the spring 48 is supported relative to the drive-side closure cover 16 via a spring plate 52 and the further spring 50 via a threaded section 54.
  • the drive piston 40 and its drive roller 56 (cf. Fig.3b, 3d ) in the direction of the closer shaft 20, so that the drive roller 56 always rests on the drive contour 28.
  • the door closer 10 further comprises a damping device 60 (cf. Fig.1 ), which is arranged between the closer shaft 20 and a second (damping side) closure cover 18 in the door closer housing 12 (in Fig.1 Left).
  • a damping device 60 cf. Fig.1
  • the door closer 10 further comprises a damping device 60 (cf. Fig.1 ), which is arranged between the closer shaft 20 and a second (damping side) closure cover 18 in the door closer housing 12 (in Fig.1 Left).
  • the damping device 60 has a damping piston 62, which is slidably guided on the inner wall of the door closer housing 12 along the door closer axis 14 along the double arrow 44.
  • a Damping-side pressure chamber 64 is arranged, which extends between the second closure cap 18 and the damping piston 62.
  • Valve channels are formed in the damping piston 62, via which the damping-side pressure chamber 64 can be fluidly connected to the gear chamber 22. This will be described further below.
  • the damping device 60 also has a tracking spring 66.
  • the tracking spring 66 is preferably arranged on the second (damping side) closure cover 18 and tensioned between the closure cover 18 and the damping piston 62.
  • the damping piston 62 and its damping roller 68 (cf. Fig.2b, 2d ) in the direction of the closer shaft 20, so that the damping roller 68 always rests on the damping contour 30.
  • the damping piston 62 is described in more detail below (cf. Fig.2a to 2d ).
  • the damping piston 62 has the above-mentioned damping roller 68, which is arranged in a corresponding recess 69 on the damping piston 62 and is arranged via axle sections 70 in axle receiving sections 72 and is rotatably mounted on the damping piston 62 about a roller axis 74.
  • the damping piston 62 On its circumference, the damping piston 62 has at least largely, preferably completely, circumferential sliding or guide rings 76. In addition, the damping piston 62 has a sealing arrangement 78 on its circumference, which is formed, for example, from an internal O-ring 80 and an external sealing ring 82.
  • the damping piston 62 also includes an overload valve 84.
  • the overload valve 84 has a valve channel 88 formed in the damping piston 62 and extending along a channel axis 86, a locking body 90 and a sealing seat 91. Via the valve channel 88 - if the locking body 90 does not rest on the sealing seat 91 - a flow connection can be established between the recess 69 and an area on the piston crown 93 of the damping piston 62.
  • the locking body 90 is accommodated in a locking body receiving section 92 in the valve channel 88 and lies sealingly against the sealing seat 91 when the overload valve 84 is closed.
  • the valve channel 88 has an n-shaped cross section (inner cross section) in the locking body receiving section 92.
  • n 4
  • the locking body receiving section 92 has a square cross section.
  • optional roundings 99 (“grooves”) are formed in the blocking body receiving section 92, for example.
  • the locking body 90 is spherical, therefore designed as a ball.
  • the locking body 90 is dimensioned such that the locking body 90 is guided without play in the locking body receiving section 92 orthogonally or laterally to the channel axis 86. In other words, the spherical locking body 90 rests on the four inner surfaces of the locking body receiving section 92 at corresponding contact points 97.
  • the length of the locking body receiving section 92 along the channel axis 86 is dimensioned such that the locking body 90 can be displaced from the sealing seat 91 (closed state of the overload valve 84) in the locking body receiving section 92 by a distance of 0.6mm to 1.3mm (open state of the overload valve 84).
  • the sealing seat 91 is formed by a shoulder 94 in the valve channel 88, through which the cross section of the valve channel 88 is reduced in relation to the locking body receiving section 92.
  • the side edges 95 of the locking body receiving section 92 at the end of the locking body receiving section 92 facing away from the sealing seat 91 are formed or embossed in such a way that the cross section of the valve channel 88 on the side edges 95 is reduced in relation to the cross section of the locking body receiving section 92. This limits the displacement of the locking body 90 away from the sealing seat 91 in the locking body receiving section 92.
  • the damping piston 62 faces the pressure chamber 64 on the damping side with its piston crown 93 (cf. Fig.1 ), whereby the opening direction of the overload valve 84 of the damping piston 62 faces the pressure chamber 64 on the damping side.
  • the overload valve 84 opens towards the pressure chamber 64 on the damping side when appropriate pressure is applied.
  • the damping piston 62 also has a control valve 96 which is preloaded in the closed position, in the example spring-loaded (cf. Fig.2b ).
  • the control valve 96 is arranged in a further valve channel 98 and opens at the piston crown 93, with the control valve 96 having an opening direction which faces away from the piston crown 93. In other words, the control valve 96 opens towards the gearbox chamber 22 when appropriate pressure is applied.
  • the drive piston 40 is described in more detail below (cf. Fig.3a to 3d ), which is designed largely analogously to the damping piston 62.
  • the drive piston 40 has the above-mentioned drive roller 56, which is arranged in a corresponding recess 100 on the drive piston 40 and is arranged via axle sections 102 in axle receiving sections 104 and is rotatably mounted on the drive piston 40 about a roller axis 106.
  • the drive piston 40 On its circumference, the drive piston 40 has at least largely, preferably completely, circumferential sliding or guide rings 108.
  • the drive piston 40 has a sealing arrangement 110 on its circumference, which is formed, for example, from an internal O-ring 112 and an external sealing ring 114.
  • the drive piston 40 also includes an overload valve 116.
  • the overload valve 116 has a valve channel 120 formed in the drive piston 40 and extending along a channel axis 118, a locking body 122 and a sealing seat 124. Via the valve channel 120 - if the locking body 122 does not rest on the sealing seat 124 - a flow connection can be established between the recess 100 and an area on the piston crown 126 of the drive piston 40.
  • the locking body 122 is accommodated in a locking body receiving section 128 in the valve channel 120 and lies sealingly against the sealing seat 124 when the overload valve 116 is closed.
  • the valve channel 120 has an n-shaped cross section (inner cross section) in the locking body receiving section 128.
  • n 4
  • the locking body receiving section 128 has a square cross section.
  • optional roundings 130 are formed in the blocking body receiving section 128, for example.
  • the locking body 122 is spherical, therefore designed as a ball.
  • the locking body 122 is dimensioned such that the locking body 122 is guided without play in the locking body receiving section 128 orthogonally or laterally to the channel axis 118. In other words, the spherical locking body 122 rests on the four inner surfaces of the locking body receiving section 128 at corresponding contact points 129.
  • the length of the locking body receiving section 128 along the channel axis 188 is dimensioned such that the locking body 122 can be displaced in the locking body receiving section 128 by a distance of 0.6mm to 1.3mm starting from the sealing seat 124 (closed state of the overload valve 116) (open state of the overload valve 116).
  • the sealing seat 124 is formed by a shoulder 131 in the valve channel 120, through which the cross section of the valve channel 120 is reduced in relation to the locking body receiving section 128.
  • Locking body receiving section 128 are formed or embossed in such a way that the cross section of the valve channel 120 at the side edges 132 is reduced in relation to the cross section of the locking body receiving section 128. This limits a displacement of the locking body 122 away from the sealing seat 124 in the locking body receiving section 128.
  • the drive piston 40 faces the drive-side pressure chamber 46 with its piston crown 126 (cf. Fig.1 ), wherein the opening direction of the overload valve 116 of the drive piston 40 faces the drive-side pressure chamber 46.
  • the overload valve 116 opens towards the drive-side pressure chamber 46 when appropriate pressure is applied.
  • the drive piston 40 also has a control valve 134 which is preloaded in the closed position, in the example spring-loaded (cf. Fig.3b ).
  • the control valve 134 is arranged in a further valve channel 136 and opens at the piston crown 126, the control valve 134 having an opening direction that faces away from the piston crown 126. In other words, the control valve 134 opens towards the gearbox chamber 22 when appropriate pressure is applied.
  • the square cross section of the locking body receiving section 92, 128 and the spherical locking body 90, 122 in the example enable precise positioning of the locking body 90, 122 relative to the sealing seat 91, 124 or to the valve opening, with sufficiently large outflow openings 89, 138 (space between Outer contour of the locking body and the inner contour of the locking body receiving section) remain for the fluid.

Landscapes

  • Fluid-Damping Devices (AREA)

Claims (9)

  1. Dispositif de fermeture de porte (10) pour actionner un battant d'une porte, d'une fenêtre ou similaire, avec un arbre de dispositif de fermeture (20) et une came (26) solidaire en rotation de l'arbre de dispositif de fermeture (20), dans lequel la came (26) coopère avec un dispositif d'entraînement (38) incluant un piston d'entraînement (40) et avec un dispositif d'amortissement (60) incluant un piston d'amortissement (62),
    dans lequel le piston d'entraînement (40) et/ou le piston d'amortissement (62) présentent respectivement une soupape de surcharge (84, 116), dans lequel la soupape de surcharge (84, 116) présente respectivement un canal de soupape (88, 120) s'étendant le long d'un axe de canal (86, 118), un corps de blocage (90, 122) et un siège d'étanchéité (91, 124), dans lequel le corps de blocage (90, 122) est reçu dans une section de réception de corps de blocage (92, 128) dans le canal de soupape (88, 120) et repose sur le siège d'étanchéité (91, 124) à l'état fermé de la soupape de surcharge (84, 116), caractérisé en ce que le canal de soupape (88, 120) présente au moins dans la section de réception de corps de blocage (92, 128), de préférence le long de l'ensemble du canal de soupape (88, 120), une section transversale à n angles avec n≥3, et en ce que le corps de blocage (90, 122) est de forme sphérique ou cylindrique.
  2. Dispositif de fermeture de porte (10) selon la revendication 1, caractérisé en ce que le corps de blocage (90, 122) est dimensionné de telle sorte que le corps de blocage (90, 122) est guidé sans jeu dans la section de réception de corps de blocage (92, 128) orthogonalement à l'axe de canal (86, 118).
  3. Dispositif de fermeture de porte (10) selon la revendication 1 ou 2, caractérisé en ce que dans la section transversale à n angles du canal de soupape (88, 120), n≥3 et n≤8 (3≤n≤8).
  4. Dispositif de fermeture de porte (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le canal de soupape (88, 120) présente une section transversale carrée au moins dans la section de réception du corps de blocage (92, 128), de préférence le long de l'ensemble du canal de soupape (88, 120).
  5. Dispositif de fermeture de porte (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la longueur de la section de réception de corps de blocage (92, 128) le long de l'axe de canal (86, 118) est dimensionnée de telle sorte que le corps de blocage (90, 122) peut être déplacé d'une distance de 0,6 mm à 1,3 mm à partir du siège d'étanchéité (91, 124) jusque dans la section de réception de corps de blocage (92, 128).
  6. Dispositif de fermeture de porte (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le siège d'étanchéité (91, 124) est réalisé par un épaulement (94, 130) dans le canal de soupape (88, 120), par l'intermédiaire duquel la section transversale du canal de soupape (88, 120) est réduite par rapport à la section de réception de corps de blocage (92, 128).
  7. Dispositif de fermeture de porte (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les bords latéraux (95, 132) de la section de réception de corps de blocage (92, 128) à l'extrémité de la section de réception de corps de blocage (92, 128) opposée au siège d'étanchéité (91, 124) sont mis en forme de telle sorte que la section transversale du canal de soupape (88, 120) au niveau des bords latéraux (95, 132) est réduite par rapport à la section transversale de la section de réception de corps de blocage (92, 128).
  8. Dispositif de fermeture de porte (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le piston d'entraînement (40) est tourné avec son fond de piston (93) vers une chambre de pression (46) côté entraînement et/ou le piston d'amortissement (62) est tourné avec son fond de piston (126) vers une chambre de pression (64) côté amortissement, dans lequel la direction d'ouverture de la soupape de surcharge (116) du piston d'entraînement (40) est tournée vers la chambre de pression (46) côté entraînement et/ou la direction d'ouverture de la soupape de surcharge (84) du piston d'amortissement (62) étant tournée vers la chambre de pression (64) côté amortissement.
  9. Dispositif de fermeture de porte (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le piston d'entraînement (40) et/ou le piston d'amortissement (62) présentent une soupape de régulation (96, 134) précontrainte en position de fermeture, en particulier précontrainte par ressort, dans lequel la soupape de régulation (96, 134) est agencée dans un canal de soupape supplémentaire (98, 136) et débouche sur le fond de piston (93, 126), dans lequel la soupape de régulation (96, 134) présente une direction d'ouverture opposée au fond de piston (93, 134).
EP22205204.5A 2021-11-15 2022-11-03 Ferme-porte Active EP4180608B1 (fr)

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GB1497220A (en) * 1976-05-19 1978-01-05 Wherton I Door closer
DE2816806C2 (de) * 1978-04-18 1984-12-13 Alfred Teves Gmbh, 6000 Frankfurt Ventil
DE3742213C2 (de) * 1987-12-12 1995-03-30 Dorma Gmbh & Co Kg Türschließer mit einer durch eine Federanordnung im Schließsinn belasteten Schließerwelle
DE202012003928U1 (de) 2012-04-18 2013-07-22 Gretsch-Unitas Gmbh Türschließer
DE102017124034A1 (de) * 2017-10-16 2019-04-18 Gretsch-Unitas GmbH Baubeschläge Schließvorrichtung zum Schließen eines Tür- oder Fensterflügels
DE102020108623A1 (de) 2020-03-27 2021-09-30 Gretsch-Unitas GmbH Baubeschläge Schließvorrichtung zum Schließen eines Tür- oder Fensterflügels

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DE102021129628A1 (de) 2023-05-17
EP4180608A1 (fr) 2023-05-17

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