EP2312065B1 - Telescopic water outlet - Google Patents

Telescopic water outlet Download PDF

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Publication number
EP2312065B1
EP2312065B1 EP10014520.0A EP10014520A EP2312065B1 EP 2312065 B1 EP2312065 B1 EP 2312065B1 EP 10014520 A EP10014520 A EP 10014520A EP 2312065 B1 EP2312065 B1 EP 2312065B1
Authority
EP
European Patent Office
Prior art keywords
pipe
water outlet
inner pipe
head
tube
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.)
Not-in-force
Application number
EP10014520.0A
Other languages
German (de)
French (fr)
Other versions
EP2312065A1 (en
Inventor
Wolf-Dieter Lacher
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.)
Neoperl GmbH
Original Assignee
Neoperl 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
Priority claimed from DE200710008537 external-priority patent/DE102007008537B4/en
Application filed by Neoperl GmbH filed Critical Neoperl GmbH
Publication of EP2312065A1 publication Critical patent/EP2312065A1/en
Application granted granted Critical
Publication of EP2312065B1 publication Critical patent/EP2312065B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/04Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0404Constructional or functional features of the spout
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/04Water-basin installations specially adapted to wash-basins or baths
    • E03C2001/0414Water-basin installations specially adapted to wash-basins or baths allowing different orientations of the spout or the outlet nozzle
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/04Water-basin installations specially adapted to wash-basins or baths
    • E03C2001/0417Water-basin installations specially adapted to wash-basins or baths having space-saving features, e.g. retractable, demountable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/9464Faucets and spouts

Definitions

  • the invention relates to a telescopic water outlet with an inner tube configured as a flow tube and an outer tube designed as an outflow tube, which surrounds the inner tube at a distance to form an annular jacket space, wherein a telescopability of the water outlet by means of a braking or blocking device can be delayed or prevented.
  • a telescopic water outlet of the type mentioned which has a telescopic by a stroke Aushnerohr Oberssystem.
  • the effluent piping system of the prior art water spout has a flow tube held on the body of the fitting and an outflow tube longitudinally movable with respect to the flow tube, one being an inner tube and the other an outer tube.
  • the inner tube has a closed tube end and a radial passage in a distance corresponding to at least the stroke from the closed tube end. Through the radial passage, an interior of the inner tube is permanently connected to a jacket space of constant volume, which is limited by the inner tube and the outer tube.
  • a water outlet which is movable under the pressure of the incoming water from lying in the working surface standby position in the vertical direction in a lying above the working surface outlet position.
  • the previously known water outlet has a trapped in the work surface Hydraulic cylinder, which passes through an outlet pipe, which carries at its upper end of the pipe, the outlet opening.
  • a reciprocating piston is provided, in which a pressure relief valve is integrated. While the outlet pipe can already be extended out of the work surface at a reduced pressure of the incoming water against its own weight serving as restoring force, the inflowing water can flow out of the outlet opening under an increased water pressure.
  • a water spout with an extendable and possibly pivotable outlet pipe which is formed by a feed pipe and this telescopically cross, displaceable and rotatable drain pipe.
  • a clamping nut is screwed on the inner tube end of the drain pipe, which also serves to Ausziehbegrenzung.
  • This clamping nut is designed as a union nut and has at its end facing the inlet to a radial confiscation.
  • a corrugated pipe guide ring is inserted.
  • the corrugated tube guide ring is preferably made of plastic, optionally made of hard rubber.
  • this braking device which is formed by the collection of the clamping nut and the outer end side edge of the corrugated pipe guide ring, serves the user to change the mobility of the known water outlet, an activation of the braking device by the operating water outlet itself is not possible.
  • a water outlet which is vertically movable between a lower position in which the water outlet opening is the level of the carrier top side, and an upper use position, in the. the water outlet opening is located at a greater distance above the level of the working plane.
  • the known water outlet has to an outlet pipe, which is guided vertically displaceable with a straight pipe section in a carrier held in the working plane.
  • a locking device is provided, which is formed of merge into one another guide grooves and engaging in the guide grooves grub screw. Even with this known water outlet is not a telescopic water outlet -, but rather the outlet pipe of EP 0 712 964 A1 previously known water outlet only in the vertical direction above the working plane.
  • the water outlet according to the invention to a braking or blocking device, which delays or even prevents telescoping of the water outlet and thus a relative movement between the inner and outer tube, ie a pushing together or a divergence of the outlet pipe system.
  • the braking or blocking device used according to the invention has at least one held on the inner or outer tube brake element that is movable or deformable by a change in pressure in the annular jacket space and / or by changing the relative position of the inner and outer tubes in the radial direction or transverse direction, that at least one brake element acts on the inner tube or a standpipe rigidly connected to a fitting body.
  • this braking or blocking device can be activated by a pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tubes.
  • the inner and outer tubes formed as circular pipe sections, any relative movement between the inner and outer tube and thus also a rotational movement is delayed or prevented by the braking or blocking device.
  • the invention provides that the at least one brake element with a frontal or peripheral inclined surface acts on a ramp, and if the brake element and its associated bevel by a Pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tube experience a relative movement, such that the braking element moves or deforms in the radial direction or in the transverse direction.
  • annular brake piston is displaceably guided between the inner and outer tube, which has at least one bevel on its outer or inner circumference.
  • this brake piston undergoes a relative movement in the longitudinal direction of the outlet pipe system by an increase in pressure in the annular jacket space and / or by retraction of the inner pipe into the outer pipe, this longitudinal movement is converted by means of the ramp into a movement of the braking element in the radial direction or in the transverse direction.
  • the brake does not act in a pressureless state, which is easier to align by the user.
  • the displacement force is limited, since at positively controlled displacement of the outer tube, that at least one brake element is also pressed over an inclined surface to the outside, the radial force effect is ultimately limited by the friction and sliding conditions on the inner seal of the brake piston to the inner tube, so that from the time of sliding friction between the brake piston and inner tube no additional radial forces are transmitted to the standpipe.
  • the components of the braking or blocking device are connected to one another in a simple manner when the outer tube has at least one through opening which passes through a braking element, and if the brake element has on its facing the inner tube end or peripheral side which has a ramp on the brake piston acting inclined surface and with its opposite, outwardly facing end or peripheral side cooperates with a, the outer tube embracing standpipe.
  • the at least one brake element is held in the insertion opening of the outer tube.
  • With its pointing to the inner tube and designed as an inclined surface end face or peripheral side of the brake element engages in the ramp on the brake piston, which is thereby slidably connected to the outer and the inner tube along inclined surface and ramp.
  • the brake piston at the same time also forms the fitting end of the annular jacket space, it is advantageous if the brake piston is sealed relative to the inner tube or to the outer tube by means of at least one mechanical seal.
  • a particularly simple and reduced to only a few components embodiment provides that the brake element is circular and can be expanded in the radial direction by a pressure change in the annular jacket space and / or by changing the relative position of the inner and outer tubes.
  • the brake element is made of elastic material.
  • a firm hold of the telescopic water outlet is favored when the outer tube is slidably guided in the standpipe.
  • Preferred embodiments provide that at the outlet end of the water outlet a shower head and / or a jet regulator is provided.
  • a shower spray can be individually adapted to the size of the user.
  • the telescopic water outlet can also be used advantageously on a kitchen sink and can make there a flexible water hose dispensed as a tap outlet.
  • the kitchen shower designed as a so-called duo-shower, which is located between a shower and a water jet function can be adjusted, it may be advantageous if the water outlet is optionally switchable between the shower function and the jet function formed by a jet regulator.
  • the inner tube carries at its arranged in the outer tube Stirnend Scheme an inner tube head with the outer tube slidably radially on the inner circumference annular flange, and if the inner tube head has at least one flow opening at its annular flange and at its head circumference at least one opening in the annular mantle flow opening ,
  • the inner tube of the water outlet according to the invention may have an inner tube head at its front end region arranged in the outer tube, which carries an annular flange which displaceably engages the outer tube on the inner circumference side.
  • the outer tube is thus guided displaceably on the annular flange provided on the inner tube head.
  • at least one opening in the tube interior of the outer tube flow opening is provided at the annular flange of the inner tube head
  • the inner tube at its head circumference at least one in the annular jacket space opening flow opening.
  • the comparatively easily produced inner tube head is able to close the inner tube at its front end region arranged in the outer tube and at the same time to create both the at least one flow opening opening in the annular jacket space and the flow opening provided between annular jacket space and outer tube interior.
  • the production cost is additionally reduced if the inner tube head can be produced as a separate and connectable to the inner tube component.
  • the inner tube head is designed as a separate component that can be connected to the inner tube, the inner tube and possibly also the outer tube can be produced from simple tube sections.
  • the inner tube head is particularly easy stirnend substance fixed to the inner tube when the inner tube head has a connectable to the inner tube connecting pin, which is sleeve-shaped and pushed onto the inner tube Stirnend Scheme, or which is insertable into the tube interior of the inner tube Stirnend ceremoniess.
  • a preferred embodiment which limits a plurality of flow-through openings provides that the connecting pin is crown-shaped with a plurality of distributed over the circumference of the connecting pin arranged and open towards the free end of the journal end flow-through.
  • the water outlet according to the invention at the outlet end of its outer tube has a limited for example by a jet regulator or a shower head or the like in the open outlet flow outlet end face
  • this side of the provided on the inner tube head ring flange in the ring jacket space on the one hand and beyond this Ring flange in the tube interior of the outer tube on the other hand set different water pressures, which lead to an undesirable relative displacement between the inner tube and outer tube.
  • a hydraulic force imbalance is further exacerbated if, for example, the standard provided jet regulator is inadvertently replaced with a jet regulator of another flow class or if the provided as attachment screen or as a jet disintegrator hole surfaces of the jet regulator calcify or otherwise pollute.
  • a telescopic water outlet 1 is shown in its essential components, which has a designed as a flow tube inner tube 2 and provided as an outflow tube outer tube 3.
  • the outer tube 3 surrounds the inner tube 2 at a distance to form a water-conducting annular jacket space 4.
  • the inner tube 2 is closed at its front end region arranged in the outer tube 3 and has a plurality of throughflow openings 5 opening out in the annular jacket space 4 on the tube circumference side.
  • the annular jacket space 4 is connected at its outlet end face via a plurality of flow openings 6 with the tube interior 7 of the outer tube 3; At its opposite end face of the annular jacket space 4 by one, the outer tube 3 and the inner tube 2 slidably acted upon mechanical seal 8, 9 sealed.
  • the inner tube 2 has at its, in the outer tube 3 arranged Stirnend Scheme an inner tube head 10 with an outer tube 3 on the inner peripheral side slidably acting on the annular flange 11.
  • This inner tube head has at its annular flange 11, the flow openings 6, while at its head circumference opening into the annular mantle space 4 through-flow openings 5 are provided.
  • the outer tube 3 is thus guided displaceably on the annular flange 11 provided on the inner tube head 10.
  • the comparatively easy to produce inner tube head 10 is able to close the inner tube 2 at its arranged in the outer tube 3 Stirnend Scheme and at the same time to create both the at least one opening in the annular jacket 4 flow opening 5, as well as between the annular jacket space 4 and outer tube interior 7 provided flow opening 6 , Since the inner tube head 10 can optionally also be produced as a separate component which can be connected to the inner tube 2, the inner tube 2 and the outer tube 3 can be produced, for example, from simple tube sections which are preferably circular in cross section.
  • the water outlet 1 at the outlet end 12 of its outer tube 3 has a, for example, by a jet regulator 13 or a shower head or the like in the open outlet limited Auslaufstirn simulation, can this side of the provided on the inner tube head 10 Ringflansches 11 in the annular space 4 on the one hand and beyond this annular flange 11 in the tube interior 7 of the outer tube 3 on the other hand set different water pressures, which lead to an undesirable relative displacement between inner tube 2 and outer tube 3.
  • a hydraulic power imbalance is still amplified, for example, if the standard provided jet regulator 13 is inadvertently replaced with a jet regulator of another flow class or if provided as a front screen or as a beam splitter hole surfaces of the jet regulator 13 calcify or otherwise pollute.
  • the telescopic water outlet 1 shown here therefore has a braking or blocking device 14, by means of which the telescoping of the water outlet 1 can be delayed or prevented and in particular counteracts an unintentional retraction or extension of the water outlet 1.
  • the braking or blocking device 14 is activated by an increase in pressure in the annular jacket space 4 and / or by retraction of the inner tube 2 in the outer tube 3.
  • the braking or blocking device 14 has at least one brake element 15, which is held here on the outer tube 3.
  • the brake element 15 is movable in the radial direction, that the at least one brake element 15, a rigidly connected to a fitting body and the outer tube 3 in sections encompassing standpipe 17th on the inner peripheral side acted upon by such a frictional engagement that both longitudinal movements and rotational movements between the inner and outer tubes 2, 3 are delayed or prevented.
  • the at least one brake element 15 has a frontal or peripheral oblique surface 18, which acts on a ramp 19.
  • This ramp 19 is disposed on an annular brake piston 20 which is guided in the annular jacket space 4 between the inner and outer tubes 2, 3 slidably.
  • the brake piston 20 experiences by an increase in pressure in the annular jacket space 4 and / or by retraction of the inner tube 2 in the outer tube 3, a longitudinal movement of the outer peripheral side arranged ramp 19 on the inclined surface 18 on the brake element 15th transferred and converted into a radial movement of the at least one brake element 15.
  • the brake element 15 can act on the inner circumference of the standpipe 17 in such a frictionally engaged manner that, until further notice, a relative movement between the inner and outer tubes 2, 3 is delayed or prevented.
  • the outer tube 3 has at least one insertion opening 21 which passes through the at least one brake element 15. While the brake element 15 on its facing the inner tube 2 end or peripheral side has the inclined surface 18, the brake element 15 acts with its opposite, outwardly facing end or peripheral side with the outer tube 3 embracing standpipe 17 together.
  • the sliding ring seals 8, 9 are provided, which on the outer or inner circumference of the ring-shaped and the inner tube 2 embracing brake piston 20 each in an annular groove are arranged.
  • the brake element 15 may be circular and be expandable by a pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tubes 2, 3 in the radial direction or in the transverse direction. But it is also possible that - as here - on the brake piston 20 a plurality, preferably spaced apart at equal intervals brake elements 15 are provided.
  • a circular brake element may be made of elastic material to after each braking or locking operation to achieve a release of the braking or blocking device 14 and a return movement of the brake element 15.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Domestic Plumbing Installations (AREA)
  • Joints Allowing Movement (AREA)
  • Nozzles (AREA)
  • Pipe Accessories (AREA)

Abstract

The telescopic water outlet (1) has an interior pipe (2) formed as a through pipe and an external pipe (3) formed as a discharge pipe. The interior pipe carries an interior pipe head (10) having an annular flange (11) that acts on the external pipe in a displaceable manner at the end face region disposed in the external pipe. The interior pipe head has a flow opening (6) on the annular flange and the flow through opening (5) ending in the annular casing space (4) on the head circumference.

Description

Die Erfindung betrifft einen teleskopierbaren Wasserauslauf mit einem als Durchflussrohr ausgestalteten Innenrohr und einem als Ausflussrohr ausgebildeten Außenrohr, welches das Innenrohr mit Abstand unter Bildung eines Ringmantelraumes umgreift, wobei eine Teleskopierbarkeit des Wasserauslaufs mittels einer Brems- oder Blockiereinrichtung verzögerbar oder verhinderbar ist.The invention relates to a telescopic water outlet with an inner tube configured as a flow tube and an outer tube designed as an outflow tube, which surrounds the inner tube at a distance to form an annular jacket space, wherein a telescopability of the water outlet by means of a braking or blocking device can be delayed or prevented.

Aus der EP 1 707 692 A1 ist ein teleskopierbarer Wasserauslauf der eingangs erwähnten Art bekannt, der ein um einen Hub teleskopierbares Ausflussrohrleitungssystem hat. Das Ausflussrohrleitungssystem des vorbekannten Wasserauslaufs weist ein am Armaturengrundkörper gehaltenes Durchflussrohr und ein bezüglich dem Durchflussrohr längsbewegliches Ausflussrohr auf, wobei das eine ein Innenrohr und das andere ein Außenrohr ist. Das Innenrohr weist ein verschlossenes Rohrende und in einem mindestens dem Hub entsprechenden Abstand vom verschlossenen Rohrende einen radialen Durchlass auf. Durch den radialen Durchlass ist ein Inneres des Innenrohrs dauernd mit einem Mantelraum konstanten Volumens verbunden, welcher durch das Innenrohr und das Außenrohr begrenzt ist. Da der vom Wasser durchflossene Mantelraum beim Auseinanderziehen oder Zusammenstoßen des teleskopierbaren Wasserauslaufs ein konstantes Volumen aufweist, fließt - bei geschlossener, im Armaturengrundkörper angeordneter Steuerpatrone - beim Zusammenstoßen kein Wasser aus einer Wasserausflussöffnung der Sanitärarmatur aus und beim Auseinanderziehen wird weder Luft noch Wasser beziehungsweise ein Feststoff in das Ausflussrohrleitungssystem durch die Wasserausflussöffnung eingesaugt. Allerdings ist die maximal mögliche Auszugslänge des vorbekannten teleskopierbaren Wasserauslaufs stets kleiner als die Hälfte der Baulänge seines ineinandergeschobenen Ausflussrohrleitungssystems. In dem Ausflussrohrleitungssystem des vorbekannten Wasserauslaufs wirken keinerlei unterschiedliche hydraulische Kräfte, die in der Lage wären, das Ausflussrohr zu bewegen, - jedoch kann sich eine unerwünschte Längsbewegung des Ausflussrohres einstellen, wenn die Achse der Ausflussrichtung und die Bewegungsrichtung der Armatur parallel sind und wenn deshalb beim Wasseraustritt ein Rückstoß des Ausflussrohres erfolgt. Der aus EP 1 707 692 A1 vorbekannte Wasserauslauf weist einen komplexen und nur mit erheblichen Aufwand herstellbaren Innenaufbau auf und ist auf einen konstruktiv angepassten Armaturengrundkörper angewiesen, dessen Wasserführung zum Ausflussrohrleitungssystem passen muss. Da somit eine nachträgliche Montage des vorbekannten Wasserauslaufs an eine bereits vorhandene Armatur nicht möglich ist, sind die Einsatzmöglichkeiten für den aus EP 1 707 692 A1 vorbekannten Wasserauslauf zusätzlich begrenzt.From the EP 1 707 692 A1 a telescopic water outlet of the type mentioned is known, which has a telescopic by a stroke Ausflussrohrleitungssystem. The effluent piping system of the prior art water spout has a flow tube held on the body of the fitting and an outflow tube longitudinally movable with respect to the flow tube, one being an inner tube and the other an outer tube. The inner tube has a closed tube end and a radial passage in a distance corresponding to at least the stroke from the closed tube end. Through the radial passage, an interior of the inner tube is permanently connected to a jacket space of constant volume, which is limited by the inner tube and the outer tube. Because of the water flowing through the jacket space when pulling apart or colliding the telescopic water outlet has a constant volume, flows - with closed, arranged in the fitting body control cartridge - collision no water from a Wasserausflussöffnung the sanitary fitting and pulling apart is sucked neither air nor water or a solid in the Ausflussrohrleitungssystem through the Wasserausflussöffnung. However, the maximum possible extension length of the known telescopic water outlet is always smaller than half the length of its nested Ausflussrohrleitungssystems. In the Ausflussrohrleitungssystem the prior art water spout no different hydraulic forces that would be able to move the spout, but may be an unwanted longitudinal movement of the spout set when the axis of the outflow direction and the direction of movement of the valve are parallel and therefore when Water outlet a recoil of the spout takes place. The out EP 1 707 692 A1 Previously known water outlet has a complex and only with considerable effort producible internal structure and is dependent on a structurally adapted fitting body, the water supply has to fit the Ausflussrohrleitungssystem. Since thus a subsequent installation of the known water outlet to an existing valve is not possible, the possible uses for the EP 1 707 692 A1 previously known water outlet additionally limited.

Aus der US 2007/0169472 A1 ist bereits ein Wasserauslauf vorbekannt, der unter dem Druck des zuströmenden Wassers von einer in der Arbeitsfläche liegenden Bereitschaftsstellung in vertikaler Richtung in eine oberhalb der Arbeitsfläche liegende Auslaufstellung bewegbar ist. Der vorbekannte Wasserauslauf weist dazu einen in die Arbeitsfläche eingeschlossenen Hydraulikzylinder auf, den ein Auslaufrohr durchsetzt, das an seinem oberen Rohrende die Auslauföffnung trägt. In dem zwischen Hydraulikzylinder und Auslaufrohr verbleibenden Ringmantelraum ist ein Hubkolben vorgesehen, in den ein Druckentlastungsventil integriert ist. Während sich das Auslaufrohr bei einem verminderten Druck des zuströmenden Wassers gegen sein als Rückstellkraft dienendes Eigengewicht bereits aus der Arbeitsfläche ausfahren lässt, kann das zuströmende Wasser unter einem demgegenüber gesteigerten Wasserdruck aus der Auslauföffnung ausfließen. Bei dem vorbekannten Wasserauslauf handelt es sich jedoch nicht um einen gattungsgemäßen teleskopierbaren Wasserauslauf, - viel-mehr ist das Auslaufrohr des vorbekannten Wasserauflaufs nur in vertikaler Richtung aus der Arbeitsfläche verfahrbar. Dabei wird die Vertikalbewegung des Auslaufrohres durch einen entsprechenden Kraftausgleich zwischen dem Druck des zuströmenden Wassers einerseits und dem Gewicht des Auslaufrohres anderseits gesteuert, weshalb auf eine Brems- oder Blockiereinrichtung verzichtet werden kann.From the US 2007/0169472 A1 already a water outlet is already known, which is movable under the pressure of the incoming water from lying in the working surface standby position in the vertical direction in a lying above the working surface outlet position. The previously known water outlet has a trapped in the work surface Hydraulic cylinder, which passes through an outlet pipe, which carries at its upper end of the pipe, the outlet opening. In the remaining between the hydraulic cylinder and the outlet tube annular jacket space a reciprocating piston is provided, in which a pressure relief valve is integrated. While the outlet pipe can already be extended out of the work surface at a reduced pressure of the incoming water against its own weight serving as restoring force, the inflowing water can flow out of the outlet opening under an increased water pressure. In the known water outlet, however, is not a generic telescopic water outlet, - much more is the outlet pipe of the known water casserole only in the vertical direction from the working surface movable. The vertical movement of the outlet pipe is controlled by a corresponding force balance between the pressure of the inflowing water on the one hand and the weight of the outlet pipe on the other hand, which is why it is possible to dispense with a braking or blocking device.

Aus der DE 38 20 837 A1 kennt man bereits einen Wasserauslauf mit einem ausziehbaren und gegebenenfalls schwenkbaren Auslaufrohr, das durch ein Zulaufrohr und ein dieses teleskopartig übergreifendes, verschieb- und verdrehbares Ablaufrohr gebildet ist. Zur Führung des Ablaufrohres auf dem Zulaufrohr ist am inneren Rohrende des Ablaufrohres eine Spannmutter aufgeschraubt, die auch zur Ausziehbegrenzung dient. Diese Spannmutter ist als Überwurfmutter ausgebildet und weist an ihrem dem Zulauf zugewandten Ende eine radiale Einziehung auf. Zwischen dieser Einziehung und dem inneren Ende des Ablaufrohres ist ein Wellrohr-Führungsring eingesetzt. Durch die wellige Ausführung des Führungsringes sind Luftdurchtrittskanäle geschaffen, durch die von außen her auch in diesem Führungsbereich Luft in den Ringspaltkanal zwischen den Rohren eintreten kann. Die Einziehung der Spannmutter ist mit einer die Außenstirnseitenkante des Wellrohr-Führungsringes beaufschlagenden Anfasung versehen, durch die der Führungsring durch unterschiedliches Anziehen der Spannmutter mehr oder weniger gegen das Zulaufrohr gepresst werden kann. Dadurch kann die Gängigkeit der Schiebe- bzw. Drehbewegung zwischen den beiden Rohren beeinflusst werden. Der Wellrohr-Führungsring besteht vorzugsweise aus Kunststoff, gegebenenfalls aus Hartgummi. Diese Bremseinrichtung, die durch die Einziehung der Spannmutter und die Außenstirnseitenkante des Wellrohr-Führungsringes gebildet ist, dient zwar dem Anwender zur Veränderung der Gängigkeit des vorbekannten Wasserauslaufs, -eine Aktivierung der Bremseinrichtung durch den in Betrieb befindlichen Wasserauslauf selbst ist jedoch nicht möglich.From the DE 38 20 837 A1 already known a water spout with an extendable and possibly pivotable outlet pipe, which is formed by a feed pipe and this telescopically cross, displaceable and rotatable drain pipe. To guide the drain pipe on the inlet pipe a clamping nut is screwed on the inner tube end of the drain pipe, which also serves to Ausziehbegrenzung. This clamping nut is designed as a union nut and has at its end facing the inlet to a radial confiscation. Between this collection and the inner end of the drain pipe, a corrugated pipe guide ring is inserted. Due to the wavy design of the guide ring air passageways are created by the air in the annular gap between the channel through the outside of this guide area Pipes can enter. The collection of the clamping nut is provided with a the outer end side edge of the corrugated pipe guide ring acting chamfering through which the guide ring can be pressed by different tightening the clamping nut more or less against the inlet pipe. As a result, the mobility of the sliding or rotational movement between the two tubes can be influenced. The corrugated tube guide ring is preferably made of plastic, optionally made of hard rubber. Although this braking device, which is formed by the collection of the clamping nut and the outer end side edge of the corrugated pipe guide ring, serves the user to change the mobility of the known water outlet, an activation of the braking device by the operating water outlet itself is not possible.

Aus der EP 0 712 964 A1 kennt man bereits einen Wasserauslauf, der zwischen einer unteren Stellung, in welcher die Wasserauslauföffnung dem Niveau der Trägeroberseite unmittelbar benachbart ist, und einer oberen Gebrauchsstellung vertikal verfahrbar ist, in der. sich die Wasserauslauföffnung in einem größeren Abstand über dem Niveau der Arbeitsebene befindet. Der vorbekannte Wasserauslauf hat dazu ein Auslaufrohr, das mit einem geraden Rohrabschnitt in einem in der Arbeitsebene gehaltenen Träger vertikal verschieblich geführt ist. Um das Auslaufrohr in seinen Funktionsstellungen zu halten, ist eine Arretiervorrichtung vorgesehen, die aus ineinander übergehenden Führungsnuten und einer in die Führungsnuten eingreifenden Madenschraube gebildet ist. Auch bei diesem vorbekannten Wasserauslauf handelt es sich jedoch nicht um einen teleskopierbaren Wasserauslauf -, vielmehr ist das Auslaufrohr des aus EP 0 712 964 A1 vorbekannten Wasserauslaufs nur in vertikaler Richtung über der Arbeitsebene verfahrbar.From the EP 0 712 964 A1 already known a water outlet, which is vertically movable between a lower position in which the water outlet opening is the level of the carrier top side, and an upper use position, in the. the water outlet opening is located at a greater distance above the level of the working plane. The known water outlet has to an outlet pipe, which is guided vertically displaceable with a straight pipe section in a carrier held in the working plane. In order to keep the outlet pipe in its functional positions, a locking device is provided, which is formed of merge into one another guide grooves and engaging in the guide grooves grub screw. Even with this known water outlet is not a telescopic water outlet -, but rather the outlet pipe of EP 0 712 964 A1 previously known water outlet only in the vertical direction above the working plane.

Es besteht daher insbesondere die Aufgabe, einen Wasserauslauf der eingangs erwähnten Art zu schaffen, der mit vergleichsweise geringem Aufwand herstellbar ist und der die Nachteile des vorbekannten Standes der Technik vermeidet, ohne dessen Vorzüge vermissen zu lassen.There is therefore a particular object to provide a water spout of the type mentioned, which can be produced with relatively little effort and avoids the disadvantages of the prior art, without sacrificing its merits.

Eine erfindungsgemäße Lösung dieser Aufgabe besteht bei dem Wasserauslauf der eingangs erwähnten Art in den Merkmalen des geltenden Patentanspruches 1.An inventive solution to this problem is the water outlet of the type mentioned in the features of the valid claim 1.

Gemäß diesem Lösungsvorschlag weist der erfindungsgemäße Wasserauslauf eine Brems- oder Blockiereinrichtung auf, die eine Teleskopierbarkeit des Wasserauslaufs und damit eine Relativbewegung zwischen Innen- und Außenrohr, d.h. ein Zusammenschieben oder ein Auseinanderlaufen des Auslaufrohrleitungssystems verzögert oder gar verhindert. Die erfindungsgemäß verwendete Brems- oder Blockiereinrichtung hat zumindest ein am Innen- oder Außenrohr gehaltenes Bremselement, das durch eine Druckveränderung im Ringmantelraum und/oder durch eine Veränderung der Relativposition von Innen- und Außenrohr in radialer Richtung oder Querrichtung derart bewegbar oder verformbar ist, dass das zumindest eine Bremselement das Innenrohr oder ein, mit einem Armaturengrundkörper starr verbundenes Standrohr beaufschlagt. Damit ist diese Brems- oder Blockiereinrichtung durch eine Druckveränderung im Ringmantelraum und/oder durch eine Veränderung der Relativposition von Innen- und Außenrohr aktivierbar. Sind das Innen- und das Außenrohr als kreisrunde Rohrabschnitte ausgebildet, wird durch die Brems- oder Blockiereinrichtung jedwede Relativbewegung zwischen Innen- und Außenrohr und somit auch eine Drehbewegung verzögert oder verhindert.According to this proposed solution, the water outlet according to the invention to a braking or blocking device, which delays or even prevents telescoping of the water outlet and thus a relative movement between the inner and outer tube, ie a pushing together or a divergence of the outlet pipe system. The braking or blocking device used according to the invention has at least one held on the inner or outer tube brake element that is movable or deformable by a change in pressure in the annular jacket space and / or by changing the relative position of the inner and outer tubes in the radial direction or transverse direction, that at least one brake element acts on the inner tube or a standpipe rigidly connected to a fitting body. Thus, this braking or blocking device can be activated by a pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tubes. Are the inner and outer tubes formed as circular pipe sections, any relative movement between the inner and outer tube and thus also a rotational movement is delayed or prevented by the braking or blocking device.

Um mit Hilfe des zumindest einen Bremselementes eine ausreichende Bremswirkung zu erzielen und das Bremselement aktivieren zu können, ist erfindungsgemäß vorgesehen, dass das zumindest eine Bremselement mit einer stirn- oder umfangsseitigen Schrägfläche eine Auflaufschräge beaufschlagt, und wenn das Bremselement und die ihm zugeordnete Auflaufschräge durch eine Druckveränderung im Ringmantelraum und/oder durch eine Veränderung der Relativposition von Innen- und Außenrohr eine Relativbewegung erfahren, derart, dass sich das Bremselement in radialer Richtung oder in Querrichtung bewegt oder verformt.In order to achieve a sufficient braking effect and to activate the brake element with the aid of the at least one brake element, the invention provides that the at least one brake element with a frontal or peripheral inclined surface acts on a ramp, and if the brake element and its associated bevel by a Pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tube experience a relative movement, such that the braking element moves or deforms in the radial direction or in the transverse direction.

Dabei ist zwischen Innen- und Außenrohr ein ringförmiger Bremskolben verschieblich geführt, der an seinem Außen- oder Innenumfang zumindest eine Auflaufschräge hat. Sobald dieser Bremskolben durch eine Druckerhöhung im Ringmantelraum und/oder durch ein Einfahren des Innenrohrs in das Außenrohr eine Relativbewegung in Längsrichtung des Auslaufrohrleitungssystems erfährt, wird diese Längsbewegung mittels der Auflaufschräge in eine Bewegung des Bremselementes in radialer Richtung oder in Querrichtung umgesetzt.In this case, an annular brake piston is displaceably guided between the inner and outer tube, which has at least one bevel on its outer or inner circumference. As soon as this brake piston undergoes a relative movement in the longitudinal direction of the outlet pipe system by an increase in pressure in the annular jacket space and / or by retraction of the inner pipe into the outer pipe, this longitudinal movement is converted by means of the ramp into a movement of the braking element in the radial direction or in the transverse direction.

Bei einer axialen oder radialen Verschiebung des Außenrohrs durch den Benutzer, beispielsweise verursacht durch manuelle Anpassung der Höhe oder der Umfangsposition des Auslaufteils des Teleskop-Rohrs, wirkt die Bremse in drucklosem Zustand nicht, was einer einfacheren Ausrichtung durch den Benutzer entgegen kommt.In an axial or radial displacement of the outer tube by the user, for example caused by manual adjustment of the height or the circumferential position of the outlet part of the telescopic tube, the brake does not act in a pressureless state, which is easier to align by the user.

Während des Betriebes ist eine manuell aufgebrachte RelativBewegung zwischen Außen- und Innenrohr dennoch möglich, wenngleich auch mit erhöhtem Kraftaufwand, da die Bremswirkung, die sich aufgrund der unterdrückten Längsbewegung zwischen Außenrohr und Innenrohr aufgrund unterschiedlicher Drücke und Wirkflächen ergibt, überwunden werden muss.During operation, a manually applied RelativBewegung between the outer and inner tube is still possible, albeit with increased effort, since the braking effect due to the suppressed longitudinal movement between Outer tube and inner tube results due to different pressures and effective surfaces, must be overcome.

Die Verschiebekraft ist jedoch begrenzt, da bei zwangsgesteuerter Verschiebung des Außenrohrs, dass mindestens eine Bremselement zwar ebenfalls über eine schräge Fläche nach Außen gedrückt wird, die radiale Kraftwirkung aber letztlich durch die Reib- und Gleitverhältnisse an der Innendichtung des Bremskolbens zum Innenrohr hin begrenzt wird, so dass ab dem Zeitpunkt der Gleitreibung zwischen Bremskolben und Innenrohr keine zusätzlichen Radialkräfte auf das Standrohr übertragen werden.However, the displacement force is limited, since at positively controlled displacement of the outer tube, that at least one brake element is also pressed over an inclined surface to the outside, the radial force effect is ultimately limited by the friction and sliding conditions on the inner seal of the brake piston to the inner tube, so that from the time of sliding friction between the brake piston and inner tube no additional radial forces are transmitted to the standpipe.

Die Bestandteile der Brems- oder Blockiereinrichtung werden auf einfache Weise miteinander verbunden, wenn das Außenrohr zumindest eine Durchstecköffnung hat, die ein Bremselement durchsetzt, und wenn das Bremselement an seiner zum Innenrohr weisenden Stirn- oder Umfangsseite die eine Auflaufschräge am Bremskolben beaufschlagende Schrägfläche aufweist und mit seiner gegenüberliegenden, nach außen weisenden Stirn- oder Umfangsseite mit einem, das Außenrohr umgreifenden Standrohr zusammenwirkt. Damit ist das zumindest eine Bremselement in der Durchstecköffnung des Außenrohres gehalten. Mit seiner zum Innenrohr weisenden und als Schrägfläche ausgebildeten Stirn- oder Umfangsseite greift das Bremselement in die Auflaufschräge am Bremskolben ein, der dadurch mit dem Außen- und dem Innenrohr entlang von Schrägfläche und Auflaufschräge verschieblich verbunden ist. Durch eine Druckveränderung im Ringmantelraum und/oder durch eine Veränderung der Relativposition von Innen- und Außenrohr wird der Bremskolben geringfügig in Längsrichtung des Auslaufrohrleitungssystems bewegt. Diese Längsbewegung des Bremskolbens wird von dessen Auflaufschräge auf die Schrägfläche des zumindest einen Bremselementes übertragen, das dadurch eine Bewegung in radialer Richtung oder in Querrichtung zum Standrohr erfährt. Dabei legt sich das zumindest eine Bremselement derart an das Standrohr an, dass eine Teleskopierbarkeit des Wasserauslaufs mittels der Brems- oder Blockiereinrichtung verzögerbar oder verhinderbar ist.The components of the braking or blocking device are connected to one another in a simple manner when the outer tube has at least one through opening which passes through a braking element, and if the brake element has on its facing the inner tube end or peripheral side which has a ramp on the brake piston acting inclined surface and with its opposite, outwardly facing end or peripheral side cooperates with a, the outer tube embracing standpipe. Thus, the at least one brake element is held in the insertion opening of the outer tube. With its pointing to the inner tube and designed as an inclined surface end face or peripheral side of the brake element engages in the ramp on the brake piston, which is thereby slidably connected to the outer and the inner tube along inclined surface and ramp. By a pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tubes of the brake piston is slightly moved in the longitudinal direction of the outlet piping system. This longitudinal movement of the brake piston is transmitted from the ramp to the inclined surface of the at least one brake element, which thereby undergoes a movement in the radial direction or in the transverse direction to the standpipe. In this case, the at least one brake element attaches to the standpipe in such a way that a telescoping of the water outlet can be delayed or prevented by means of the braking or blocking device.

Sofern der Bremskolben gleichzeitig auch den armaturenseitigen Abschluss des Ringmantelraums bildet, ist es vorteilhaft, wenn der Bremskolben gegenüber dem Innenrohr oder gegenüber dem Außenrohr mittels zumindest einer Gleitringdichtung abgedichtet ist.If the brake piston at the same time also forms the fitting end of the annular jacket space, it is advantageous if the brake piston is sealed relative to the inner tube or to the outer tube by means of at least one mechanical seal.

Eine besonders einfache und auf nur wenige Bestandteile reduzierte Ausführungsform sieht vor, dass das Bremselement kreisförmig ausgebildet und durch eine Druckveränderung im Ringmantelraum und/oder durch eine Veränderung der Relativposition von Innen- und Außenrohr in radialer Richtung aufweitbar ist.A particularly simple and reduced to only a few components embodiment provides that the brake element is circular and can be expanded in the radial direction by a pressure change in the annular jacket space and / or by changing the relative position of the inner and outer tubes.

Um die Bremswirkung möglichst vollständig zu lösen und dazu eine Rückstellbewegung des Bremselements durchzuführen, ist es vorteilhaft, wenn das Bremselement aus elastischem Material hergestellt ist.In order to solve the braking effect as completely as possible and to perform a return movement of the braking element, it is advantageous if the brake element is made of elastic material.

Ein fester Halt des teleskopierbaren Wasserauslaufs wird begünstigt, wenn das Außenrohr im Standrohr verschieblich geführt ist.A firm hold of the telescopic water outlet is favored when the outer tube is slidably guided in the standpipe.

Bevorzugte Ausführungsbeispiele sehen vor, dass am Auslaufende des Wasserauslaufs ein Brausekopf und/oder ein Strahlregler vorgesehen ist. Mit Hilfe des teleskopierbaren Wasserauslaufs kann eine Duschbrause individuell an die Größe des Benutzers angepasst werden. Der teleskopierbare Wasserauslauf ist aber auch an einem Küchenbecken vorteilhaft einsetzbar und kann dort einen flexiblen Wasserschlauch als Armaturenauslauf entbehrlich machen. Ist die Küchenbrause als sogenannte Duo-Brause ausgestaltet, die zwischen einer Brause- und einer Wasserstrahlfunktion eingestellbar ist, kann es vorteilhaft sein, wenn der Wasserauslauf wahlweise zwischen der Brausefunktion und der durch einen Strahlregler geformten Strahlfunktion umschaltbar ist.Preferred embodiments provide that at the outlet end of the water outlet a shower head and / or a jet regulator is provided. With the aid of the telescopic water outlet, a shower spray can be individually adapted to the size of the user. The telescopic water outlet can also be used advantageously on a kitchen sink and can make there a flexible water hose dispensed as a tap outlet. Is the kitchen shower designed as a so-called duo-shower, which is located between a shower and a water jet function can be adjusted, it may be advantageous if the water outlet is optionally switchable between the shower function and the jet function formed by a jet regulator.

Üblicherweise ergeben sich in den zwei Strahlarten Strahl/Brause unterschiedliche hydraulische Widerstände und somit unterschiedliche Durchflüsse. Der dadurch induzierte unterschiedliche Druckabfall innerhalb der Teleskopeinheit würde bei einem System ohne Bremseinrichtung dazu führen, dass aufgrund einer Verschiebung des Kräftegleichgewichts das zuvor in Ruhe befindliche System außer Gleichgewicht gerät, was dazu führt, dass sich der Teleskopauslauf selbstständig ausstreckt oder zusammenzieht, was unerwünscht ist. Dies wird durch die erfindungsgemäß vorgesehene Bremseinrichtung unterbunden.Usually arise in the two spray jet / spray different hydraulic resistances and thus different flow rates. The resulting differential pressure drop within the telescope unit would result in a system without braking device that due to a shift in the balance of power, the previously at rest system gets out of balance, which causes the telescopic spout automatically extends or contracts, which is undesirable. This is prevented by the inventively provided braking device.

Vorteilhaft ist es, wenn das Innenrohr an seinem im Außenrohr angeordneten Stirnendbereich einen Innenrohr-Kopf mit einem das Außenrohr innenumfangsseitig verschieblich beaufschlagenden Ringflansch trägt, und wenn der Innenrohr-Kopf an seinem Ringflansch wenigstens eine Durchflussöffnung und an seinem Kopfumfang zumindest eine im Ringmantelraum mündende Durchströmöffnung aufweist.It is advantageous if the inner tube carries at its arranged in the outer tube Stirnendbereich an inner tube head with the outer tube slidably radially on the inner circumference annular flange, and if the inner tube head has at least one flow opening at its annular flange and at its head circumference at least one opening in the annular mantle flow opening ,

Das Innenrohr des erfindungsgemäßen Wasserauslaufs kann an seinem im Außenrohr angeordneten Stirnendbereich einen Innenrohr-Kopf aufweisen, der einen das Außenrohr innenumfangsseitig verschieblich beaufschlagenden Ringflansch trägt. Das Außenrohr ist somit an dem am Innenrohr-Kopf vorgesehenen Ringflansch verschieblich geführt. Während am Ringflansch des Innenrohr-Kopfes wenigstens eine im Rohrinneren des Außenrohres mündende Durchflussöffnung vorgesehen ist, weist das Innenrohr an seinem Kopfumfang zumindest eine im Ringmantelraum mündende Durchströmöffnung auf. Der vergleichsweise einfach herstellbare Innenrohr-Kopf vermag das Innenrohr an seinem im Außenrohr angeordneten Stirnendbereich zu verschließen und gleichzeitig sowohl die zumindest eine, im Ringmantelraum mündende Durchströmöffnung als auch die zwischen Ringmantelraum und Außenrohr-Innenraum vorgesehene Durchflussöffnung zu schaffen.The inner tube of the water outlet according to the invention may have an inner tube head at its front end region arranged in the outer tube, which carries an annular flange which displaceably engages the outer tube on the inner circumference side. The outer tube is thus guided displaceably on the annular flange provided on the inner tube head. While at least one opening in the tube interior of the outer tube flow opening is provided at the annular flange of the inner tube head, the inner tube at its head circumference at least one in the annular jacket space opening flow opening. The comparatively easily produced inner tube head is able to close the inner tube at its front end region arranged in the outer tube and at the same time to create both the at least one flow opening opening in the annular jacket space and the flow opening provided between annular jacket space and outer tube interior.

Dabei wird der Herstellungsaufwand noch zusätzlich reduziert, wenn der Innenrohr-Kopf als separates und mit dem Innenrohr verbindbares Bauteil herstellbar ist.In this case, the production cost is additionally reduced if the inner tube head can be produced as a separate and connectable to the inner tube component.

Ist der Innenrohr-Kopf als separates und mit dem Innenrohr verbindbares Bauteil ausgestaltet, können das Innenrohr und gegebenenfalls auch das Außenrohr aus einfachen Rohrabschnitten hergestellt werden. Dabei ist der Innenrohr-Kopf besonders einfach stirnendseitig am Innenrohr fixierbar, wenn der Innenrohr-Kopf einen mit dem Innenrohr verbindbaren Verbindungszapfen hat, der hülsenförmig ausgebildet und auf dem Innenrohr-Stirnendbereich aufschiebbar ist, oder der in das Rohrinnere des Innenrohr-Stirnendbereichs einführbar ist.If the inner tube head is designed as a separate component that can be connected to the inner tube, the inner tube and possibly also the outer tube can be produced from simple tube sections. In this case, the inner tube head is particularly easy stirnendseitig fixed to the inner tube when the inner tube head has a connectable to the inner tube connecting pin, which is sleeve-shaped and pushed onto the inner tube Stirnendbereich, or which is insertable into the tube interior of the inner tube Stirnendbereichs.

Dabei sieht eine bevorzugte Ausführungsform, die mehrere Durchströmöffnungen begrenzt, vor, dass der Verbindungszapfen kronenförmig mit mehreren, über den Umfang des Verbindungszapfens verteilt angeordneten und zum freien Zapfenstirnende hin offenen Durchströmöffnungen ausgestaltet ist.In this case, a preferred embodiment which limits a plurality of flow-through openings, provides that the connecting pin is crown-shaped with a plurality of distributed over the circumference of the connecting pin arranged and open towards the free end of the journal end flow-through.

Insbesondere wenn der erfindungsgemäße Wasserauslauf am Auslaufende seines Außenrohres eine beispielsweise durch einen Strahlregler oder einen Brausekopf oder dergleichen im lichten Auslaufquerschnitt begrenzte Auslaufstirnfläche hat, können sich diesseits des am Innenrohrkopf vorgesehenen Ringflansches im Ringmantelraum einerseits und jenseits dieses Ringflansches im Rohrinneren des Außenrohres andererseits unterschiedliche Wasserdrücke einstellen, die zu einer unerwünschten Relativverschiebung zwischen Innenrohr und Außenrohr führen. Ein hydraulisches Kräfte-Ungleichgewicht wird noch verstärkt, wenn beispielsweise der serienmäßig vorgesehene Strahlregler unbeabsichtigt gegen einen Strahlregler einer anderen Durchflussklasse ausgetauscht wird oder wenn die als Vorsatzsieb oder als Strahlzerleger vorgesehenen Lochflächen des Strahlreglers verkalken oder sonst wie verschmutzen.In particular, when the water outlet according to the invention at the outlet end of its outer tube has a limited for example by a jet regulator or a shower head or the like in the open outlet flow outlet end face, can this side of the provided on the inner tube head ring flange in the ring jacket space on the one hand and beyond this Ring flange in the tube interior of the outer tube on the other hand set different water pressures, which lead to an undesirable relative displacement between the inner tube and outer tube. A hydraulic force imbalance is further exacerbated if, for example, the standard provided jet regulator is inadvertently replaced with a jet regulator of another flow class or if the provided as attachment screen or as a jet disintegrator hole surfaces of the jet regulator calcify or otherwise pollute.

Weitere Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung eines erfindungsgemäßen Ausführungsbeispieles in Verbindung mit den Ansprüchen sowie der Zeichnung.Further features of the invention will become apparent from the following description of an embodiment of the invention in conjunction with the claims and the drawings.

Es zeigt:

Fig. 1
einen teleskopierbaren Wasserauslauf in einem Längsschnitt, wobei der Wasserauslauf ein als Durchflussrohr ausgestaltetes Innenrohr sowie ein als Ausflussrohr vorgesehenes Außenrohr hat, zwischen denen eine Bremseinrichtung wirksam ist,
Fig. 2
einen Teilbereich des in Fig. 1 gezeigten Wasserauslaufs in einer Explosionsdarstellung,
Fig.3
in einem Längsschnitt das Innen- und das Außenrohr des in Fig. 1 und 2 gezeigten Wasserauslaufs im Bereich der Bremseinrichtung,
Fig. 4
das Innen- und das Außenrohr des in den Fig. 1 bis 3 wiedergegebenen Wasserauslaufs in einem Querschnitt in Schnittebene IV - IV aus Fig. 3,
Fig. 5
das Innenrohr des in Fig. 1 bis 4 gezeigten Wasserauslaufs in einer perspektivischen Teilansicht,
Fig. 6
das Innenrohr aus Fig. 5 in einem Längsschnitt,
Fig. 7
die beiden kreissegmentförmigen Bremselemente der für den Wasserauslauf gemäß den Fig. 1 bis 6 bestimmten Bremseinrichtung, und
Fig. 8
die in einer gemeinsamen Schnittebene in Längsrichtung etwa hälftig aufgeschnitten dargestellten Bremselemente aus Fig. 7.
It shows:
Fig. 1
a telescopic water outlet in a longitudinal section, wherein the water outlet has an inner tube designed as a flow tube and an outer tube provided as an outlet tube, between which a braking device is effective,
Fig. 2
a section of the in Fig. 1 shown water outlet in an exploded view,
Figure 3
in a longitudinal section, the inner and the outer tube of in Fig. 1 and 2 shown water outlet in the area of the braking device,
Fig. 4
the inner and the outer tube of the in Fig. 1 to 3 reproduced water spout in a cross section in section plane IV - IV Fig. 3 .
Fig. 5
the inner tube of the in Fig. 1 to 4 shown water spout in a partial perspective view,
Fig. 6
the inner tube off Fig. 5 in a longitudinal section,
Fig. 7
the two circular segment-shaped brake elements for the water outlet according to the Fig. 1 to 6 certain braking device, and
Fig. 8
the braking elements shown cut in half in the longitudinal direction in a common sectional plane from Fig. 7 ,

In den Fig. 1 bis 8 ist ein teleskopierbarer Wasserauslauf 1 in seinen wesentlichen Bestandteilen dargestellt, der ein als Durchflussrohr ausgestaltetes Innenrohr 2 sowie ein als Ausflussrohr vorgesehenes Außenrohr 3 hat. Das Außenrohr 3 umgreift das Innenrohr 2 mit Abstand unter Bildung eines wasserführenden Ringmantelraumes 4. Das Innenrohr 2 ist an seinem im Außenrohr 3 angeordneten Stirnendbereich geschlossen und weist rohrumfangsseitig mehrere, im Ringmantelraum 4 mündende Durchströmöffnungen 5 auf. Der Ringmantelraum 4 ist an seinem auslaufseitigen Stirnende über mehrere Durchflussöffnungen 6 mit dem Rohrinneren 7 des Außenrohres 3 verbunden; an seinem abgewandten Stirnende ist der Ringmantelraum 4 durch jeweils eine, das Außenrohr 3 beziehungsweise das Innenrohr 2 verschieblich beaufschlagende Gleitringdichtung 8, 9 abgedichtet.In the Fig. 1 to 8 a telescopic water outlet 1 is shown in its essential components, which has a designed as a flow tube inner tube 2 and provided as an outflow tube outer tube 3. The outer tube 3 surrounds the inner tube 2 at a distance to form a water-conducting annular jacket space 4. The inner tube 2 is closed at its front end region arranged in the outer tube 3 and has a plurality of throughflow openings 5 opening out in the annular jacket space 4 on the tube circumference side. The annular jacket space 4 is connected at its outlet end face via a plurality of flow openings 6 with the tube interior 7 of the outer tube 3; At its opposite end face of the annular jacket space 4 by one, the outer tube 3 and the inner tube 2 slidably acted upon mechanical seal 8, 9 sealed.

Das Innenrohr 2 weist an seinem, im Außenrohr 3 angeordneten Stirnendbereich einen Innenrohr-Kopf 10 mit einem das Außenrohr 3 innenumfangsseitig verschieblich beaufschlagenden Ringflansch 11 auf. Dieser Innenrohrkopf weist an seinem Ringflansch 11 die Durchflussöffnungen 6 auf, während an seinem Kopfumfang die im Ringmantelraum 4 mündenden Durchströmöffnungen 5 vorgesehen sind. Das Außenrohr 3 ist somit an dem am Innenrohr-Kopf 10 vorgesehenen Ringflansch 11 verschieblich geführt. Der vergleichsweise einfach herstellbare Innenrohr-Kopf 10 vermag das Innenrohr 2 an seinem im Außenrohr 3 angeordneten Stirnendbereich zu verschließen und gleichzeitig sowohl die zumindest eine im Ringmantelraum 4 mündende Durchströmöffnung 5, als auch die zwischen Ringmantelraum 4 und Außenrohr-Innenraum 7 vorgesehene Durchflussöffnung 6 zu schaffen. Da der Innenrohr-Kopf 10 gegebenenfalls auch als separates und mit dem Innenrohr 2 verbindbares Bauteil herstellbar ist, können das Innenrohr 2 und das Außenrohr 3 beispielsweise aus einfachen und im Querschnitt vorzugsweise kreisrunden Rohrabschnitten hergestellt sein.The inner tube 2 has at its, in the outer tube 3 arranged Stirnendbereich an inner tube head 10 with an outer tube 3 on the inner peripheral side slidably acting on the annular flange 11. This inner tube head has at its annular flange 11, the flow openings 6, while at its head circumference opening into the annular mantle space 4 through-flow openings 5 are provided. The outer tube 3 is thus guided displaceably on the annular flange 11 provided on the inner tube head 10. The comparatively easy to produce inner tube head 10 is able to close the inner tube 2 at its arranged in the outer tube 3 Stirnendbereich and at the same time to create both the at least one opening in the annular jacket 4 flow opening 5, as well as between the annular jacket space 4 and outer tube interior 7 provided flow opening 6 , Since the inner tube head 10 can optionally also be produced as a separate component which can be connected to the inner tube 2, the inner tube 2 and the outer tube 3 can be produced, for example, from simple tube sections which are preferably circular in cross section.

Da der Wasserauslauf 1 am Auslaufende 12 seines Außenrohres 3 eine, beispielsweise durch einen Strahlregler 13 oder einen Brausekopf oder dergleichen, im lichten Auslaufquerschnitt begrenzte Auslaufstirnfläche hat, können sich diesseits des am Innenrohr-Kopf 10 vorgesehenen Ringflansches 11 im Ringmantelraum 4 einerseits und jenseits dieses Ringflansches 11 im Rohrinneren 7 des Außenrohres 3 andererseits unterschiedliche Wasserdrücke einstellen, die zu einer unerwünschten Relativverschiebung zwischen Innenrohr 2 und Außenrohr 3 führen. Ein hydraulisches Kräfte-Ungleichgewicht wird noch verstärkt, wenn beispielsweise der serienmäßig vorgesehene Strahlregler 13 unbeabsichtigt gegen einen Strahlregler einer anderen Durchflussklasse ausgetauscht wird oder wenn die als Vorsatzsieb oder als Strahlzerleger vorgesehenen Lochflächen des Strahlreglers 13 verkalken oder sonst wie verschmutzen. Der hier dargestellte teleskopierbare Wasserauslauf 1 weist daher eine Brems- oder Blockiereinrichtung 14 auf, mittels der die Teleskopierbarkeit des Wasserauslaufs 1 verzögerbar oder verhinderbar ist und die insbesondere einem unbeabsichtigten Ein- oder Ausfahren des Wasserauslaufs 1 entgegenwirkt. Die Brems- oder Blockiereinrichtung 14 ist dazu durch eine Druckerhöhung im Ringmantelraum 4 und/oder durch ein Einfahren des Innenrohrs 2 in das Außenrohr 3 aktivierbar.Since the water outlet 1 at the outlet end 12 of its outer tube 3 has a, for example, by a jet regulator 13 or a shower head or the like in the open outlet limited Auslaufstirnfläche, can this side of the provided on the inner tube head 10 Ringflansches 11 in the annular space 4 on the one hand and beyond this annular flange 11 in the tube interior 7 of the outer tube 3 on the other hand set different water pressures, which lead to an undesirable relative displacement between inner tube 2 and outer tube 3. A hydraulic power imbalance is still amplified, for example, if the standard provided jet regulator 13 is inadvertently replaced with a jet regulator of another flow class or if provided as a front screen or as a beam splitter hole surfaces of the jet regulator 13 calcify or otherwise pollute. The telescopic water outlet 1 shown here therefore has a braking or blocking device 14, by means of which the telescoping of the water outlet 1 can be delayed or prevented and in particular counteracts an unintentional retraction or extension of the water outlet 1. The braking or blocking device 14 is activated by an increase in pressure in the annular jacket space 4 and / or by retraction of the inner tube 2 in the outer tube 3.

Die Brems- oder Blockiereinrichtung 14 weist zumindest ein Bremselement 15 auf, das hier am Außenrohr 3 gehalten ist. Durch eine Druckerhöhung im Ringmantelraum 4 und/oder durch ein Einfahren des Innenrohrs 2 in das Außenrohr 3 ist das Bremselement 15 derart in radialer Richtung bewegbar, dass das zumindest eine Bremselement 15 ein, mit einem Armaturengrundkörper starr verbundenes und das Außenrohr 3 abschnittsweise umgreifendes Standrohr 17 innenumfangsseitig derart reibschlüssig beaufschlagt, dass sowohl Längsbewegungen als auch Drehbewegungen zwischen Innen- und Außenrohr 2, 3 verzögert oder verhindert werden. Dabei weist das zumindest eine Bremselement 15 eine stirn- oder umfangsseitige Schrägfläche 18 auf, die eine Auflaufschräge 19 beaufschlagt. Diese Auflaufschräge 19 ist an einem ringförmigen Bremskolben 20 angeordnet, der im Ringmantelraum 4 zwischen Innen- und Außenrohr 2, 3 verschieblich geführt ist. Der Bremskolben 20 erfährt durch eine Druckerhöhung im Ringmantelraum 4 und/oder durch ein Einfahren des Innenrohrs 2 in das Außenrohr 3 eine Längsbewegung, die von der außenumfangsseitig angeordneten Auflaufschräge 19 auf die Schrägfläche 18 am Bremselement 15 übertragen und in eine Radialbewegung des zumindest einen Bremselementes 15 umgesetzt wird. Durch diese Radialbewegung vermag das Bremselement 15 den Innenumfang des Standrohres 17 derart reibschlüssig zu beaufschlagen, dass bis auf weiteres eine Relativbewegung zwischen Innen- und Außenrohr 2, 3 verzögert oder verhindert wird.The braking or blocking device 14 has at least one brake element 15, which is held here on the outer tube 3. By an increase in pressure in the annular jacket space 4 and / or by a retraction of the inner tube 2 in the outer tube 3, the brake element 15 is movable in the radial direction, that the at least one brake element 15, a rigidly connected to a fitting body and the outer tube 3 in sections encompassing standpipe 17th on the inner peripheral side acted upon by such a frictional engagement that both longitudinal movements and rotational movements between the inner and outer tubes 2, 3 are delayed or prevented. In this case, the at least one brake element 15 has a frontal or peripheral oblique surface 18, which acts on a ramp 19. This ramp 19 is disposed on an annular brake piston 20 which is guided in the annular jacket space 4 between the inner and outer tubes 2, 3 slidably. The brake piston 20 experiences by an increase in pressure in the annular jacket space 4 and / or by retraction of the inner tube 2 in the outer tube 3, a longitudinal movement of the outer peripheral side arranged ramp 19 on the inclined surface 18 on the brake element 15th transferred and converted into a radial movement of the at least one brake element 15. As a result of this radial movement, the brake element 15 can act on the inner circumference of the standpipe 17 in such a frictionally engaged manner that, until further notice, a relative movement between the inner and outer tubes 2, 3 is delayed or prevented.

Um die Bestandteile der Brems- oder Blockiereinrichtung 14 miteinander zu verbinden, hat das Außenrohr 3 zumindest eine Durchstecköffnung 21, die das wenigstens eine Bremselement 15 durchsetzt. Während das Bremselement 15 an seiner zum Innenrohr 2 weisenden Stirn- oder Umfangsseite die Schrägefläche 18 aufweist, wirkt das Bremselement 15 mit seiner gegenüberliegenden, nach außen weisenden Stirn- oder Umfangsseite mit dem das Außenrohr 3 umgreifenden Standrohr 17 zusammen.In order to connect the components of the braking or blocking device 14 with each other, the outer tube 3 has at least one insertion opening 21 which passes through the at least one brake element 15. While the brake element 15 on its facing the inner tube 2 end or peripheral side has the inclined surface 18, the brake element 15 acts with its opposite, outwardly facing end or peripheral side with the outer tube 3 embracing standpipe 17 together.

Der Bremskolben 20 bildet hier den armaturenseitigen Abschluss des Ringmantelraumes 4. Um den Ringmantelraum 4 auch in diesem Bereich dicht zu verschließen, sind die Gleitringdichtungen 8, 9 vorgesehen, die am Außen- beziehungsweise Innenumfang des ringförmig ausgebildeten und das Innenrohr 2 umgreifenden Bremskolbens 20 jeweils in einer Ringnut angeordnet sind.In order to seal the annular jacket space 4 tight in this area, the sliding ring seals 8, 9 are provided, which on the outer or inner circumference of the ring-shaped and the inner tube 2 embracing brake piston 20 each in an annular groove are arranged.

Das Bremselement 15 kann kreisförmig ausgebildet und durch eine Druckveränderung im Ringmantelraum und/oder durch eine Veränderung der Relativposition von Innen- und Außenrohr 2, 3 in radialer Richtung oder in Querrichtung aufweitbar sein. Möglich ist aber auch, dass - wie hier - am Bremskolben 20 mehrere, vorzugsweise in gleichmäßigen Abständen voneinander beabstandete Bremselemente 15 vorgesehen sind. Insbesondere ein kreisförmiges Bremselement kann aus elastischem Material hergestellt sein, um nach jedem Brems- oder Blockiervorgang ein Lösen der Brems- oder Blockiereinrichtung 14 und eine Rückstellbewegung des Bremselementes 15 zu erreichen.The brake element 15 may be circular and be expandable by a pressure change in the annular jacket space and / or by a change in the relative position of the inner and outer tubes 2, 3 in the radial direction or in the transverse direction. But it is also possible that - as here - on the brake piston 20 a plurality, preferably spaced apart at equal intervals brake elements 15 are provided. In particular, a circular brake element may be made of elastic material to after each braking or locking operation to achieve a release of the braking or blocking device 14 and a return movement of the brake element 15.

Claims (11)

  1. Telescoping water outlet (1) having an inner pipe (2) formed as a through-flow pipe and an outer pipe (3) formed as an outflow pipe, said outer pipe (3) surrounding the inner pipe (2) at a spaced interval thus forming an annular surface space (4), wherein a telescoping capability of the water outlet (1) can be delayed or prevented by means of a braking or blocking device (14) which (14) comprises at least one braking element (15) which is held on the inner pipe (2) or outer pipe (3) and can be moved or deformed in the radial direction or in the transverse direction by a change in pressure in the annular surface space (4) and/or by a change in the relative position of the inner and outer pipes (2, 3) such that the at least one braking element (15) acts upon the inner pipe (2) or a stand pipe (17) which is rigidly connected to a main body (16) of a fitting, characterised in that the at least one braking element (15) acts upon a run-up slope (19) by means of a sloping surface (18) on the end face or circumference, wherein the braking element (15) and the run-up slope (19) associated therewith undergo a relative movement as a result of a change in pressure in the annular surface space (4) and/or as a result of a change in the relative position of the inner and outer pipes (2, 3) such that the braking element (15) moves or is deformed in the radial direction or in the transverse direction, wherein between the inner and outer pipes (2, 3) an annular brake piston (20) is displaceably guided and has the run-up slope (19) on its outer or inner circumference.
  2. Water outlet as claimed in claim 1, characterised in that the outer pipe (3) has at least one insertion opening (21) through which the at least one brake element (15) passes and in that the at least one brake element (15) comprises, on its end face or circumferential side facing towards the inner pipe (2), the sloping surface (18) which acts upon a run-up slope (19) on the brake piston (20), and cooperates by means of its opposite, outwardly facing end face or circumferential side with a stand pipe (17) which surrounds the outer pipe (3).
  3. Water outlet as claimed in claim 1 or 2, characterised in that the brake piston (20) is sealed with respect to the inner pipe (2) and/or with respect to the outer pipe (3) by means of at least one face seal (8, 9).
  4. Water outlet as claimed in claim 2 or 3, characterised in that the at least one brake element (15) is formed in a circular manner and can be radially widened as far as the standpipe (17) by means of a change in pressure in the annular surface space (4) and/or by means of a change in the relative position of the inner and outer pipes (2, 3).
  5. Water outlet as claimed in any one of claims 1 to 4, characterised in that the at least one brake element (15) is produced from elastic material.
  6. Water outlet as claimed in any one of claims 1 to 5, characterised in that the outer pipe (3) is displaceably guided in the standpipe (17).
  7. Water outlet as claimed in any one of claims 1 to 6, characterised in that a shower head and/or a flow regulator (13) is provided at the outlet end (12) of the water outlet (1).
  8. Water outlet as claimed in any one of claims 1 to 7, characterised in that the inner pipe (2) carries, on its end face region arranged in the outer pipe (3), an inner pipe head (10) having an annular flange (11) displaceably acting on the outer pipe (3) on the inner circumferential side, and in that the inner pipe head (10) comprises on its annular flange (11) at least one through-flow opening (6) and comprises on the circumference of its head at least one through-flow opening (5) issuing in the annular surface space (4).
  9. Water outlet as claimed in claim 8, characterised in that the inner pipe head (10) can be produced as a separate component which can be connected to the inner pipe (2).
  10. Water outlet as claimed in claim 8 or 9, characterised in that the inner pipe head (10) has a connecting spigot which can be connected to the inner pipe (2), is sleeve-shaped and can be pushed onto the end face region of the inner pipe, or can be inserted into the interior of the pipe of the end face region of the inner pipe.
  11. Water outlet as claimed in claim 10, characterised in that the connecting spigot is crown-shaped having a plurality of through-flow openings (5) which are arranged distributed over the circumference of the connecting spigot and are open towards the free end face of the spigot.
EP10014520.0A 2007-02-21 2007-11-16 Telescopic water outlet Not-in-force EP2312065B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710008537 DE102007008537B4 (en) 2007-02-21 2007-02-21 Telescopic water outlet
EP20070846628 EP2134906B1 (en) 2007-02-21 2007-11-16 Telescoping water outlet

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP07846628.1 Division 2007-11-16
EP20070846628 Division EP2134906B1 (en) 2007-02-21 2007-11-16 Telescoping water outlet

Publications (2)

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EP2312065A1 EP2312065A1 (en) 2011-04-20
EP2312065B1 true EP2312065B1 (en) 2016-07-06

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EP20070846628 Not-in-force EP2134906B1 (en) 2007-02-21 2007-11-16 Telescoping water outlet
EP10014520.0A Not-in-force EP2312065B1 (en) 2007-02-21 2007-11-16 Telescopic water outlet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20070846628 Not-in-force EP2134906B1 (en) 2007-02-21 2007-11-16 Telescoping water outlet

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US (1) US8230882B2 (en)
EP (2) EP2134906B1 (en)
AT (1) ATE493548T1 (en)
DE (1) DE502007006143D1 (en)
WO (1) WO2008101528A1 (en)

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Also Published As

Publication number Publication date
EP2312065A1 (en) 2011-04-20
ATE493548T1 (en) 2011-01-15
WO2008101528A1 (en) 2008-08-28
US20100116370A1 (en) 2010-05-13
DE502007006143D1 (en) 2011-02-10
EP2134906B1 (en) 2010-12-29
US8230882B2 (en) 2012-07-31
EP2134906A1 (en) 2009-12-23

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