EP0341376B1 - Roof ventilation pipe - Google Patents

Roof ventilation pipe Download PDF

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Publication number
EP0341376B1
EP0341376B1 EP89102092A EP89102092A EP0341376B1 EP 0341376 B1 EP0341376 B1 EP 0341376B1 EP 89102092 A EP89102092 A EP 89102092A EP 89102092 A EP89102092 A EP 89102092A EP 0341376 B1 EP0341376 B1 EP 0341376B1
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EP
European Patent Office
Prior art keywords
ventilation pipe
roof ventilation
pipe according
covering cap
extend
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89102092A
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German (de)
French (fr)
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EP0341376A3 (en
EP0341376A2 (en
Inventor
Johannes Holtgreve
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HANS KLOBER KG
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HANS KLOBER KG
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Publication of EP0341376A2 publication Critical patent/EP0341376A2/en
Publication of EP0341376A3 publication Critical patent/EP0341376A3/en
Application granted granted Critical
Publication of EP0341376B1 publication Critical patent/EP0341376B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/02Roof ventilation

Definitions

  • the invention relates to a roof ventilation pipe according to the preamble of claim 1.
  • the object of the invention is to design a generic roof ventilation pipe in a simple and durable manner independent of tolerance.
  • the rest and support area are spatially separated.
  • the support / latching which is effected at different parts and places results in a better distribution of the holding forces.
  • the projections can be optimally designed according to their function, this also from the choice of material.
  • the corresponding premise applies to the support fingers.
  • the procedure is concretely such that a central projection of the cover cap engages positively in the interior of an annular rung and support fingers extend from the underside of the cover cap, which are supported on at least one outer annular rung arranged concentrically thereto. Locking is therefore concentrated in a central area.
  • the central projection is designed as a slotted sleeve at the end.
  • the shape of the sleeve brings not only the material savings that are interesting again today, but also high flexibility with the thinnest possible sleeve wall.
  • the only end slot divides the projection into a dowel-like area and an anchoring area.
  • the former like the support fingers, is rooted in a depression arranged in the cover cap bottom.
  • the dome practically formed from a stepped wall area of the ceiling of the cover cap can also have a certain membrane-like deflecting capacity by reducing the thickness of its wall, so that even clamping forces can be applied in relation to the projection in the sense of an even rotationally securing bracing of the cover cap on the lattice structure of the roof ventilation pipe .
  • the outermost support fingers are less or not included in this axial, central resilience. For stabilizing as well as visual-visual reasons, it proves to be advantageous that radially directed channels extend from the dome, which extend into the outer wall of the cover cap.
  • a corresponding lattice structure also results with regard to the roof ventilation pipe, namely by proceeding in this regard in such a way that the pipe end has lattice openings extending into the pipe jacket wall, which are formed by vertical rungs, which emanate from an outermost circular rung and open into the jacket wall.
  • the coherent, circumferential wall of the tube is thus converted into a large number of radially oriented wall sections. This leads to a favorable, directed air flow behavior (lamellae), whereby by a measure such that the grille openings are covered by the jacket wall of the cover cap, no driving rain or driving snow, leaves etc.
  • the vertical rungs start below the upper edge of the outermost circular rungs.
  • the corresponding plane offset leaves the lattice structure in an exposed position.
  • the circular rungs are connected by three radial rungs.
  • This expedient Radial rungs lying in the same angular distribution lead to an extremely stable lattice network.
  • the support fingers are placed on the outermost circular ring rung and are arranged in a uniform angular distribution. The larger cross-sectional length of the support fingers is expediently in the radial direction, that is to say in a crossing assignment to the said circular ring rung.
  • the roof ventilation pipe 1 passing through the roof formwork of a house is covered on the mouth side by a cover cap 2 (FIG. 7).
  • the latter can be assigned by means of the supported plug-in locking connection. It can be a reversible type of connection.
  • Push-fit locking and support are implemented at different points using different parts.
  • the locking means are located in the center of the roof ventilation pipe 1, that is, in the longitudinal central axis x-x. It is a central, cylindrical projection 4. The latter is molded onto the cap 4. Its axial length is shorter than the jacket wall 5 of the cover cap 2.
  • the latching anchoring of the projection 4 takes place in the center of a lattice structure G at the upper pipe end of the roof ventilation pipe 1, specifically in the interior of an inner circular ring rung 6. It is cylindrical in shape.
  • the lower end wall 6 'of the inner circular ring 6 is gripped by the steep flank 7' of a locking lug 7.
  • each of the four latching lugs 7 has a chamfer which promotes the plug-in / latching connection 7 ⁇ owns.
  • the cross slit which can be clearly seen from FIG. 6, has an overall width running in the circumferential direction, which allows the locking lugs 7 to be bundled up to below the clear cross section of the inner circular ring rung 6.
  • the steep flank 7 'of each locking lug 7 extends horizontally, that is, parallel to the plane of the end edge 6' of the circular rung.
  • the cross slots are designated by 8. Their axial length, starting from the free end of the projection, is dimensioned so that the slot bottom ends within the circular ring rung 6 (see FIG. 6). In this way, a portion that can no longer be reduced in cross section is retained as a cylinder journal inside.
  • the sleeve cavity extends to the level of the inner side 9 of the cover cap 2.
  • the support means are decentralized. They consist of freely protruding support fingers 10 starting from the underside of the covering cap 2. A total of four such support fingers 10 are realized, in fact in the same angular distribution. The spatial assignment in relation to the cross slots 8 is such that they are flush with them.
  • the support fingers 10 are, seen in cross section, rectangular shape. The longer side of the rectangle runs approximately in the radial. As can be clearly seen in FIG. 7, the narrow sides of the support fingers converge in the direction of the lattice structure G.
  • the support abutment here forms at least one outer annular ring 11.
  • the latter extends concentrically to the inner circular ring 6.
  • the annular peripheral end face 11 'of the circular ring 11 is crossed by the corresponding underside 10' of the supporting fingers 10. This underside is larger in area than the thickness of the circular ring rung 11 measured in this radial.
  • the latter is of relatively low height and merges into a top surface 14 of the cover cap 2 via a cylindrical ring wall 13 which is concentrically aligned with the jacket wall 5 of the cover cap 2.
  • the wall W forming the floor or the deck of the dome 12 can be made thinner, so that it creates a kind of flexible membrane. This allows the centrally located projection 4 even under axial tension by the steep flank 7 'of the locking lugs 7 ends slightly from the end face 6' in the basic position, so that by exerting a compressive force in the direction of arrow P with a corresponding axial displacement of the barb-like Projection 4 snaps behind the end face 6 '.
  • the support fingers 10 arranged more in the edge region of the dome 12 are practically not included, i. H. relocatable.
  • radially directed channels 15 extend from the dome 12, or respectively the outside of the ring wall 13, arranged on the upper side 14. These even run over the convexly rounded edge between top 14 and jacket wall 5 into the latter. Between the individual channels 15 there remain webs 16, which are connected by way of concave rounded channel sections 17. At the level of these channel sections 17, the casing wall 5 forms a projection 18 which can be seen in FIG. 6. The wall thickness is kept the same in both regions, except for the parts which have approximately twice the material accumulation due to the radial webs 16. The relevant area is extremely stable.
  • the pipe end has lattice openings 18 extending into the pipe jacket wall.
  • the latter are delimited by vertical rungs 19, which emanate from the outermost circular ring rung 11 and open into said jacket wall of the roof ventilation pipe 1. Accordingly, the connection of the lattice structure G is also extremely stable.
  • the wall thickness of the ventilation pipe 1 corresponds to the thickness of the vertical rungs 19. While the transition region on the pipe side between the radially oriented vertical rungs 19 is rounded concavely, the inversely directed ends of the vertical rungs 19 go bluntly into the outer surface of the outermost one Annular ring 11 over.
  • the convex curve has the reference number 20.
  • the lattice openings 18 are overlapped like a bell edge by the jacket wall 5 of the cover cap 2 which extends concentrically in front of it.
  • An overlapping assignment is expediently implemented (cf. FIG. 7).
  • the vertical rungs 19 start below the upper edge 11 ′ of the outermost circular rungs 11. In relation to the abutment, this results in a plateau-like projection.
  • central circular ring rung 21 Between the innermost circular ring rung 6 and the outermost circular ring rung 11 there is also a central circular ring rung 21. This also runs concentrically with the rotationally symmetrically adjacent circular ring rungs 6, 11. These are connected to one another via radial rungs 22. A total of three such radial rungs are realized. The latter have the same angular spacing from one another and are in alignment with a vertical rung 19 which is attached to the outside and 24 of which are provided.
  • the lower end of the roof ventilation pipe 1 can have a screw thread following a flange, this for fastening with a final pipe part arranged in a joint (not shown in more detail).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Tents Or Canopies (AREA)

Description

Die Erfindung bezieht sich auf ein Dachentlüftungsrohr gemäß Oberbegriff des Anspruchs 1.The invention relates to a roof ventilation pipe according to the preamble of claim 1.

Bei einem markterhältlichen Dachentlüftungsrohr dieser Art gehen von der Decke der Abdeckkappe drei gleichwinklig beabstandete Vorsprünge aus. Sie sitzen in Randnähe und untergreifen eine periphere Ringrippe der mündungsseitigen Gitterstruktur des Dachentlüftungsrohres. Die Abstützung erfolgt über den Vorsprüngen gleich angeformte Leisten. Im Querschnitt gesehen liegt so ein T-Profil des Vorsprungschaftes vor. Die eigentliche Abstützung bildet das nach unten gerichtete Stirnende des Steges. Die diesbezügliche Ausgestaltung ist nachteilig, da die dem Schaft der Vorsprünge angeformten Stege die zuordnungswichtige Federungsfähigkeit dämpfen. Es kommt daher zu einem recht harten Rastverhalten, was ungünstigstenfalls sogar zu einem Abbrechen der Gegenrastmittel, sprich Ringrippe, der Gitterstruktur führen kann. Wird ein größerer Toleranzbereich zugrundegelgt, kann dies bei Sturm zu einem Abheben der Abdeckkappe führen mit der Konsequenz einer Personen- bzw. Sachbeschädigung.In a roof ventilation pipe of this type which is available on the market, three projections which are spaced at equal angles start from the ceiling of the cover cap. They sit near the edge and engage under a peripheral ring rib of the mouth-side lattice structure of the roof ventilation pipe. The support is provided via the protrusions of the same shape. Seen in cross section, there is a T-profile of the projection shaft. The actual support is the downward end of the web. The configuration in this regard is disadvantageous since the webs molded onto the shaft of the projections dampen the resilience that is important for the assignment. This results in a very hard latching behavior, which in the worst case can even lead to the counter-latching means, ie ring rib, breaking off the lattice structure. If a larger tolerance range is taken as a basis, this can lead to a lifting of the cover cap in the event of a storm, with the consequence of personal injury or property damage.

Aufgabe der Erfindung ist es, ein gattungsgemäßes Dachentlüftungsrohr in einfacher und haltbarer Weise toleranzunabhängiger auszubilden.The object of the invention is to design a generic roof ventilation pipe in a simple and durable manner independent of tolerance.

Gelöst ist diese Aufgabe durch die im Anspruch 1 angegebene Erfindung.This object is achieved by the invention specified in claim 1.

Die Unteransprüche sind vorteilhafte Weiterbildungen des erfindungsgemäßen Dachentlüftungsrohres.The subclaims are advantageous developments of the roof ventilation pipe according to the invention.

Zufolge solcher Ausgestaltung ist ein gattungsgemäßes Dachentlüftungsrohr von erhöhtem Gebrauchs- und Sicherheitswert erzielt: Rast- und Stützbereich sind räumlich getrennt. Die entsprechend an unterschiedlichen Teilen und Stellen bewirkte Abstützung/Verrastung bringt eine bessere Verteilung der Haltekräfte. Außerdem lassen sich die Vorsprünge ihrer Funktion entsprechend optimal gestalten, dies auch von der Materialwahl her. Für die Stützfinger gilt die entsprechende Prämisse. In vorteilhafter Weise ist dabei konkret so vorgegangen, daß ein zentraler Vorsprung der Abdeckkappe formschlüssig in das Innere einer Kreisring-Sprosse eingreift und von der Abdeckkappen-Unterseite Stützfinger ausgehen, die sich auf mindestens einer weiter außenliegenden, konzentrisch dazu angeordneten Kreisringsprosse abstützen. Das Verrasten konzentriert sich also auf einen zentralen Bereich. Der Montierende muß nicht -wie beim beschriebenen Vorläufer- seine Aufmerksamkeit aus das korrekte Verrasten dreier, weit voneinander stehender Raststellen beobachten bzw. kontrollieren. Die nun völlig freistehenden Stützfinger lassen sich auch formtechnisch besser beherrschen. Ihre weiter außenliegende Lage führt zu einer ausgewogenen, keine besondere Zuordnungsaufmerksamkeit erfolgenden, quasi automatischen Abstützung der Abdeckkappe an der mündungsseitigen Gitterstruktur. Formtechnisch und stabilisatorisch erweist es sich sodann weiter als vorteilhaft, daß der zentrale Vorsprung als endseitig geschlitzte Hülse gestaltet ist. Die Hülsenform als solche bringt nicht nur die heute durchaus wieder interessante Materialersparnis, sondern auch hohe Flexibilität bei trotzdem dünnstmöglicher Hülsenwandung. Die nur endseitige Schlitzung teilt den Vorsprung in einen paßstiftartigen Bereich und einen Verankerungsbereich auf.As a result of such a configuration, a generic roof ventilation pipe of increased utility and safety value is achieved: the rest and support area are spatially separated. The support / latching which is effected at different parts and places results in a better distribution of the holding forces. In addition, the projections can be optimally designed according to their function, this also from the choice of material. The corresponding premise applies to the support fingers. In an advantageous manner, the procedure is concretely such that a central projection of the cover cap engages positively in the interior of an annular rung and support fingers extend from the underside of the cover cap, which are supported on at least one outer annular rung arranged concentrically thereto. Locking is therefore concentrated in a central area. The assembler does not have to - as with the predecessor described - observe or control his attention from the correct locking of three, widely spaced rest points. The now completely free-standing support fingers can also be better mastered in terms of shape. Their more distant position leads to a balanced, almost automatic assignment of the quasi-automatic support of the cover cap on the mouth-side lattice structure. In terms of shape and stabilization, it then turns out to be advantageous that the central projection is designed as a slotted sleeve at the end. The shape of the sleeve as such brings not only the material savings that are interesting again today, but also high flexibility with the thinnest possible sleeve wall. The only end slot divides the projection into a dowel-like area and an anchoring area.

Ersterer wurzelt gemäß vorteilhafter Weiterbildung, wie auch die Stützfinger, in einer im Abdeckkappen-Boden angeordneten Senke. Diese bildet auf der Oberseite der Abdeckkappe einen Dom. Der praktisch aus einem abgesetzten Wandungsbereich der Decke der Abdeckkappe gebildete Dom kann durch Dickenreduzierung seiner Wandung auch eine gewisse, membranartige Durchbiegefähigkeit besitzen, so daß in Bezug auf den Vorsprung sogar Klemmkräfte aufgebracht werden können im Sinne einer sogar drehsichernden Verspannung der Abdeckkappe an der Gitterstruktur des Dachentlüftungsrohres. In diese axiale, zentrale Federfähigkeit sind die weiter außenliegenden Stützfinger weniger bzw. gar nicht einbezogen. Aus stabilisatorischen wie auch optisch-visuellen Gründen erweist es sich als vorteilhaft, daß vom Dom radial gerichtete Rinnen ausgehen, die bis in die Mantelwand der Abdeckkappe reichen. Die entsprechende Verrippung schafft trotz erheblicher Dünnwandigkeit des Abdeckkappenmateriales stabile Verhältnisse in diesem Randbereich. Eine entsprechene Gitterstruktur ergibt sich auch in Bezug auf das Dachentlüftungsrohr, indem nämlich diesbezüglich so vorgegangen wird, daß das Rohrende bis in die Rohrmantelwand reichende Gitterdurchbrüche besitzt, die von Vertikalsprossen gebildet werden, welche von einer äußersten kreisringsprosse hochkantstehend ausgehen und in die Mantelwand einmünden. Die zusammenhängende, umlaufende Wandung des Rohres setzt sich so in eine Vielzahl radial orientierter Wandungspartien um. Das führt zu einem günstigen, gerichteten Luftströmungsverhalten (Lamellen), wobei durch eine Maßnahme dahingehend, daß die Gitterdurchbrüche von der Mantelwand der Abdeckkappe überfangen sind, kein Schlagregen bzw. Treibschnee, Laub etc. in das mündungsseitige Ende der sich in einen Teilbereich der Mantelwand des Rohres fortsetzenden Gitterstruktur eindringen kann. Von Vorteil ist es diesbezüglich ferner, daß die Vertikalsprossen unterhalb der Oberkante der äußersten Kreisringsprosse ansetzen. Der entsprechende Ebenenversatz läßt der Gitterstruktur eine exponierte Lage. Verbunden sind die Kreisringsprossen durch drei Radialsprossen. Diese zweckmäßig in gleicher Winkelverteilung liegenden Radialsprossen führen zu einem äußerst stabilen Gitterungsverbund. Endlich besteht ein vorteilhaftes Merkmal noch darin, daß die Stützfinger auf der äußersten Kreisringsprosse aufsetzen und in gleichmäßiger Winkelverteilung angeordnet sind. Die größere Querschnittslänge der Stützfinger liegt dabei zweckmäßig in der Radialen, also in kreuzender Zuordnung zur besagten Kreisringsprosse.According to an advantageous development, the former, like the support fingers, is rooted in a depression arranged in the cover cap bottom. This forms a dome on the top of the cover cap. The dome practically formed from a stepped wall area of the ceiling of the cover cap can also have a certain membrane-like deflecting capacity by reducing the thickness of its wall, so that even clamping forces can be applied in relation to the projection in the sense of an even rotationally securing bracing of the cover cap on the lattice structure of the roof ventilation pipe . The outermost support fingers are less or not included in this axial, central resilience. For stabilizing as well as visual-visual reasons, it proves to be advantageous that radially directed channels extend from the dome, which extend into the outer wall of the cover cap. The corresponding ribbing creates stable conditions in this edge region despite the considerable thin walls of the cover material. A corresponding lattice structure also results with regard to the roof ventilation pipe, namely by proceeding in this regard in such a way that the pipe end has lattice openings extending into the pipe jacket wall, which are formed by vertical rungs, which emanate from an outermost circular rung and open into the jacket wall. The coherent, circumferential wall of the tube is thus converted into a large number of radially oriented wall sections. This leads to a favorable, directed air flow behavior (lamellae), whereby by a measure such that the grille openings are covered by the jacket wall of the cover cap, no driving rain or driving snow, leaves etc. in the mouth-side end of the part of the jacket wall of the Tube penetrating lattice structure can penetrate. In this regard, it is also advantageous that the vertical rungs start below the upper edge of the outermost circular rungs. The corresponding plane offset leaves the lattice structure in an exposed position. The circular rungs are connected by three radial rungs. This expedient Radial rungs lying in the same angular distribution lead to an extremely stable lattice network. Finally, an advantageous feature is that the support fingers are placed on the outermost circular ring rung and are arranged in a uniform angular distribution. The larger cross-sectional length of the support fingers is expediently in the radial direction, that is to say in a crossing assignment to the said circular ring rung.

Der Gegenstand der Erfindung ist nachstehend anhand eines zeichnerisch veranschaulichten Ausführungsbeispieles näher erläutert. Es zeigt

Fig. 1
das erfindungsgemäße Dachentlüftungsrohr in Seitenansicht, ohne Abdeckkappe,
Fig. 2
die Unteransicht hierzu,
Fig. 3
die Draufsicht auf das Dachentlüftungsrohr,
Fig. 4
die zugehörige Abdeckkappe in Einzeldarstellung, und zwar in Seitenansicht, vergrößert,
Fig. 5
die Draufsicht hierzu,
Fig. 6
die Innenansicht der Abdeckkappe und
Fig. 7
einen Vertikalschnitt durch das mit der Abdeckkappe bestückte Dachentlüftungsrohr.
The subject matter of the invention is explained in more detail below on the basis of an illustrative embodiment. It shows
Fig. 1
the roof ventilation pipe according to the invention in side view, without cover cap,
Fig. 2
the bottom view of this,
Fig. 3
the top view of the roof ventilation pipe,
Fig. 4
the associated cover cap in individual representation, namely in a side view, enlarged,
Fig. 5
the top view of this,
Fig. 6
the inside view of the cap and
Fig. 7
a vertical section through the roof ventilation pipe equipped with the cover cap.

Das die Dachschalung eines Hauses durchsetzende Dachentlüftungsrohr 1 ist mündungsseitig von einer Abdeckkappe 2 überfangen (Fig. 7). Letztere ist im Wege der abgestützten Steck-Rastverbindung zuordbar. Es kann sich um eine reversible Art der Verbindung handeln.The roof ventilation pipe 1 passing through the roof formwork of a house is covered on the mouth side by a cover cap 2 (FIG. 7). The latter can be assigned by means of the supported plug-in locking connection. It can be a reversible type of connection.

Zwischen der überfangenden Abdeckkappe 2 und dem mündungsseitigen Ende des Entlüftungsrohres 1 befindet sich aus den strömungstechnischen Erfordernissen eine allseitige Beabstandung, bezeichnet mit 3.Between the overlapping cover cap 2 and the mouth-side end of the vent pipe 1, there is a spacing on all sides, denoted by 3, based on the fluidic requirements.

Steckverrastung und Abstützung sind an unterschiedlichen Stellen über unterschiedliche Teile realisiert. Die die Verrastung bringenden Mittel befinden sich im Zentrum des Dachentlüftungsrohres 1, also in der Längsmittelachse x-x gelegen. Es handelt sich dabei um einen zentralen, zylindrischen Vorsprung 4. Letzterer ist der Kappe 4 angeformt. Seine axiale Länge ist kürzer als die Mantelwand 5 der Abdeckkappe 2.Push-fit locking and support are implemented at different points using different parts. The locking means are located in the center of the roof ventilation pipe 1, that is, in the longitudinal central axis x-x. It is a central, cylindrical projection 4. The latter is molded onto the cap 4. Its axial length is shorter than the jacket wall 5 of the cover cap 2.

Die rastende Verankerung des Vorsprunges 4 geschieht im Zentrum einer Gitterstruktur G am oberen Rohrende des Dachentlüftungrohres 1, und zwar formschlüssig im Inneren einer inneren Kreisringsprosse 6. Sie ist zylindrischer Gestalt. Der untere Stirnwand 6′ der inneren Kreisringsprosse 6 wird von der steilen Flanke 7′ einer Rastnase 7 untergriffen.The latching anchoring of the projection 4 takes place in the center of a lattice structure G at the upper pipe end of the roof ventilation pipe 1, specifically in the interior of an inner circular ring rung 6. It is cylindrical in shape. The lower end wall 6 'of the inner circular ring 6 is gripped by the steep flank 7' of a locking lug 7.

Zufolge endseitiger Kreuzschlitzung des als Hülse gestalteten Vorsprungs 4 liegen insgesamt vier Rastnasen 7 vor, deren nach auswärts gerichteter Rücken spitzwinklig zur Längsmittelachse x-x verläuft, nach unten hin also eine konische Zuspitzung aufweist, so daß jede der vier Rastnasen 7 eine die Steck/Rastverbindung begünstigende Auflaufschräge 7˝ besitzt.As a result of cross-slitting at the end of the projection 4 designed as a sleeve, there are a total of four latching lugs 7, the outward-facing back of which extends at an acute angle to the longitudinal central axis xx, that is to say has a conical taper towards the bottom, so that each of the four latching lugs 7 has a chamfer which promotes the plug-in / latching connection 7˝ owns.

Die aus Fig. 6 deutlich erkennbare Kreuzschlitzung besitzt insgesamt eine in Umfangsrichtung verlaufende Breite, die ein Bündeln der Rastnasen 7 bis unter den lichten Querschnitt der inneren Kreisringsprosse 6 erlaubt. Die steile Flanke 7′ einer jeden Rastnase 7 erstreckt sich horizontal verlaufend, also parallel zur Ebene des Stirnrandes 6′ der Kreisringsprosse. Die Kreuzschlitze sind mit 8 bezeichnet. Ihre axiale Länge, vom freien Ende des Vorsprunges ausgehend, ist so bemessen, daß der Schlitzgrund innerhalb der Kreisringprosse 6 endet (vergl. Fig. 6). Auf diese Weise bleibt ein nicht mehr querschnittsreduzierbarer Anteil als Zylinderzapfen im Inneren erhalten.The cross slit, which can be clearly seen from FIG. 6, has an overall width running in the circumferential direction, which allows the locking lugs 7 to be bundled up to below the clear cross section of the inner circular ring rung 6. The steep flank 7 'of each locking lug 7 extends horizontally, that is, parallel to the plane of the end edge 6' of the circular rung. The cross slots are designated by 8. Their axial length, starting from the free end of the projection, is dimensioned so that the slot bottom ends within the circular ring rung 6 (see FIG. 6). In this way, a portion that can no longer be reduced in cross section is retained as a cylinder journal inside.

Die Hülsenhöhlung reicht bis auf Höhe der Deckeninnenseite 9 der Abdeckkappe 2.The sleeve cavity extends to the level of the inner side 9 of the cover cap 2.

Die Abstützmittel liegen dezentral. Sie bestehen aus von der Unterseite der Abdeckkappe 2 ausgehenden, frei vorstehenden Stützfingern 10. Insgesamt sind vier solcher Stützfinger 10 realisiert, und zwar in gleicher Winkelverteilung. Die räumliche Zuordnung in Bezug auf die Kreuzschlitze 8 ist so, daß sie mit diesen fluchten. Die Stützfinger 10 sind, im Querschnitt gesehen, rechteckiger Gestalt. Die längere Rechteckseite verläuft etwa in der Radialen. Wie Fig. 7 deutlich entnehmbar, nehmen die Schmalseiten der Stützfinger in Richtung der Gitterstruktur G konvergierenden Verlauf.The support means are decentralized. They consist of freely protruding support fingers 10 starting from the underside of the covering cap 2. A total of four such support fingers 10 are realized, in fact in the same angular distribution. The spatial assignment in relation to the cross slots 8 is such that they are flush with them. The support fingers 10 are, seen in cross section, rectangular shape. The longer side of the rectangle runs approximately in the radial. As can be clearly seen in FIG. 7, the narrow sides of the support fingers converge in the direction of the lattice structure G.

Das Stützwider lager bildet hier mindestens eine weiter außenliegende Kreisringprosse 11. Letztere erstreckt sich konzentrisch zur inneren Kreisringsprosse 6. Die ringförmig umlaufende Stirnfläche 11′ der Kreisringsprosse 11 wird von der korrespondierenden Unterseite 10′ der Stützfinger 10 kreuzend überfangen. Diese Unterseite ist flächengrößer als die in dieser Radialen gemessene Dicke der Kreisringsprosse 11.The support abutment here forms at least one outer annular ring 11. The latter extends concentrically to the inner circular ring 6. The annular peripheral end face 11 'of the circular ring 11 is crossed by the corresponding underside 10' of the supporting fingers 10. This underside is larger in area than the thickness of the circular ring rung 11 measured in this radial.

Vorsprung 4 und Stützfinger 10 gehen unter Berücksichtigung der gewählten Topfform der Abdeckkappe 2 von einer an deren Boden angeordneten Senke aus, welche aber unter Berücksichtigung der Benutzungszuordnung an der Oberseite der Abdeckkappe einen Dom 12 bildet. Letzterer ist von relative geringer Höhe und geht über eine konzentrisch zur Mantelwand 5 der Abdekkcappe 2 ausgerichtete, zylindrische Ringwand 13 in die Oberseite 14 der Abdeckkappe 2 über.The projection 4 and the supporting fingers 10, taking into account the selected pot shape of the cover cap 2, proceed from a depression arranged on the bottom thereof, which, however, forms a dome 12 on the upper side of the cover cap, taking into account the usage assignment. The latter is of relatively low height and merges into a top surface 14 of the cover cap 2 via a cylindrical ring wall 13 which is concentrically aligned with the jacket wall 5 of the cover cap 2.

Die den Boden oder die Deck des Domes 12 formende Wandung W kann dünnwandiger gesteltet sein, so daß sie eine Art durchbiegbare Membran schafft. Dadurch läßt sich der zentral angeordnete Vorsprung 4 sogar unter axialer Spannung halten, indem in Grundstellung die steile Flanke 7′ der Rastnasen 7 geringfügig von der Stirnfläche 6′ endet, so daß durch Ausübung einer Druckkraft in Richtung des Pfeiles P unter entsprechend axialer Verlagerung der widerhakenartige Vorsprung 4 hinter die Stirnfläche 6′ schnäppert. Die dabei mehr im Randbereich des Domes 12 angeordneten Stützfinger 10 sind dabei praktisch nicht einbezogen, d. h. verlagerbar.The wall W forming the floor or the deck of the dome 12 can be made thinner, so that it creates a kind of flexible membrane. This allows the centrally located projection 4 even under axial tension by the steep flank 7 'of the locking lugs 7 ends slightly from the end face 6' in the basic position, so that by exerting a compressive force in the direction of arrow P with a corresponding axial displacement of the barb-like Projection 4 snaps behind the end face 6 '. The support fingers 10 arranged more in the edge region of the dome 12 are practically not included, i. H. relocatable.

Wie den Fig. 4 und 5 entnehmbar, gehen vom Dom 12, respektive der Außenseite der Ringwand 13, auf der Oberseite 14 angeordnet, radial gerichtete Rinnen 15 aus. Diese laufen sogar über die konvex gerundete Randkante zwischen Oberseite 14 und Mantelwand 5 bis in letztere hinein. Zwischen den einzelnen Rinnen 15 verbleiben Stege 16, welche über konkav gerundete Rinnenabschnitte 17 in Verbindung stehen. Auf Höhe dieser Rinnenabschnitte 17 bildet die Mantelwand 5 einen aus Fig. 6 ersichtlichen Versprung 18. Die Wandungsdikke ist in beiden Bereichen gleich gehalten, bis auf die Partien, die durch die Radialstege 16 die etwa doppelte Materialanhäufung aufweisen. Der diesbezügliche Bereich fällt äußerst stabil aus.As can be seen in FIGS. 4 and 5, radially directed channels 15 extend from the dome 12, or respectively the outside of the ring wall 13, arranged on the upper side 14. These even run over the convexly rounded edge between top 14 and jacket wall 5 into the latter. Between the individual channels 15 there remain webs 16, which are connected by way of concave rounded channel sections 17. At the level of these channel sections 17, the casing wall 5 forms a projection 18 which can be seen in FIG. 6. The wall thickness is kept the same in both regions, except for the parts which have approximately twice the material accumulation due to the radial webs 16. The relevant area is extremely stable.

Das Rohrende besitzt bis in die Rohrmantelwand reichende Gitterdurchbrüche 18. Letztere sind von Vertikalsprossen 19 begrenzt, welche von der äußersten Kreisringsprosse 11 hochkantstehend ausgehen und in die besagte Mantelwand des Dachentlüftungsrohres 1 einmünden. Entsprechend fällt die Anbindung der Gitterstruktur G ebenfalls äußerst stabil aus. Die Wandungsdicke des Lüftungsrohres 1 entspricht der Dicke der Vertikalsprossen 19. Während der rohrseitige Übergangsbereich zwischen den radial ausgerichteten Vertikalsprossen 19 konkav gerundet ist, gehen die invers gerichteten Enden der Vertikalsprossen 19 stumpf in die Mantelfläche der äußersten Kreisringsprosse 11 über. Die konvave Rundung trägt das Bezugszeichen 20.The pipe end has lattice openings 18 extending into the pipe jacket wall. The latter are delimited by vertical rungs 19, which emanate from the outermost circular ring rung 11 and open into said jacket wall of the roof ventilation pipe 1. Accordingly, the connection of the lattice structure G is also extremely stable. The wall thickness of the ventilation pipe 1 corresponds to the thickness of the vertical rungs 19. While the transition region on the pipe side between the radially oriented vertical rungs 19 is rounded concavely, the inversely directed ends of the vertical rungs 19 go bluntly into the outer surface of the outermost one Annular ring 11 over. The convex curve has the reference number 20.

Wie Fig. 7 entnehmbar, sind die Gitterdurchbrüche 18 von der davor sich konzentrisch erstreckenden Mantelwand 5 der Abdeckkappe 2 glockenrandartig überfangen. Zweckmäßig wird eine überlappende Zuordnung realisiert (vergl. Fig. 7). Oberseitig setzen die Vertikalsprossen 19 unterhalb der Oberkante 11' der äußersten Kreisringsprosse 11 an. Bezogen auf das Widerlager ergibt sich so ein plateauartiger Überstand.As can be seen in FIG. 7, the lattice openings 18 are overlapped like a bell edge by the jacket wall 5 of the cover cap 2 which extends concentrically in front of it. An overlapping assignment is expediently implemented (cf. FIG. 7). The vertical rungs 19 start below the upper edge 11 ′ of the outermost circular rungs 11. In relation to the abutment, this results in a plateau-like projection.

Zwischen der innersten Kreisringsprosse 6 und der äußersten Kreisringsprosse 11 liegt noch eine mittlere Kreisringsprosse 21. Auch diese verläuft konzentrisch zu den rotationssymmetrisch benachbarten Kreisringsprossen 6, 11. Untereinander sind diese verbunden über Radialsprossen 22. Insgesamt sind drei solcher Radialsprossen realisiert. Letztere nehmen gleiche Winkelabstände zueinander ein und stehen fluchtend zu je einer außenseitig ansetzenden Vertikalsprosse 19, von denen insgesamt 24 vorgesehen sind.Between the innermost circular ring rung 6 and the outermost circular ring rung 11 there is also a central circular ring rung 21. This also runs concentrically with the rotationally symmetrically adjacent circular ring rungs 6, 11. These are connected to one another via radial rungs 22. A total of three such radial rungs are realized. The latter have the same angular spacing from one another and are in alignment with a vertical rung 19 which is attached to the outside and 24 of which are provided.

Das untere Ende des Dachentlüftungsrohres 1 kann im Anschluß an einen Flansch Schraubgewinde aufweisen, dies zur Befestigung mit einem abschließenden, in einem Gelenk angeordneten Rohrteil (nicht näher dargestellt).The lower end of the roof ventilation pipe 1 can have a screw thread following a flange, this for fastening with a final pipe part arranged in a joint (not shown in more detail).

Claims (10)

  1. Roof ventilation pipe (1) with a grid structure (G) on the opening side formed at least partially by bars extending in a ring shape, and with a covering cap (2) located thereabove which is latched to the upper pipe end by downwardly oriented projections, characterised in that a central projection (4) of the covering cap (2) engages in the interior of a ring bar (6) in form-locking relationship, and from the lower side of the covering cap extend supporting fingers (10) which are supported on at least one ring bar (11) located further out and arranged concentrically thereto.
  2. Roof ventilation pipe according to claim 1, characterised in that the central projection (4) is designed as a sleeve slotted at the end.
  3. Roof ventilation pipe according to one or more of the preceding claims, characterised in that the central projection (4) and the supporting fingers (10) extend from a depression arranged in the top of the covering cap.
  4. Roof ventilation pipe according to claim 3, characterised in that the region of the depression forms a dome (12) on the upper side (14) of the covering cap (2).
  5. Roof ventilation pipe according to claim 4, characterised in that radially oriented channels (15) extend from the dome (12) and into the peripheral wall (5) of the covering cap (2).
  6. Roof ventilation pipe according to one or more of the preceding claims, characterised in that the upper pipe end has grid apertures (18) which extend into the peripheral wall of the pipe and which are formed by vertical bars (19) which extend uprightly from an outermost ring bar (11) and lead into the peripheral wall of the pipe.
  7. Roof ventilation pipe according to claim 6, characterised in that the grid apertures (18) are covered by the peripheral wall (5) of the covering cap (2).
  8. Roof ventilation pipe according to claim 6 or 7, characterised in that the vertical bars (19) start beneath the upper edge (11') of the outermost ring bar (11).
  9. Roof ventilation pipe according to one or more of the preceding claims, characterised by three ring bars (6, 11, 21) and three radial bars (22).
  10. Roof ventilation pipe according to one or more of the preceding claims, characterised in that the supporting fingers (10) contact the outermost ring bar (11) and are arranged in uniform angular distribution.
EP89102092A 1988-05-07 1989-02-08 Roof ventilation pipe Expired - Lifetime EP0341376B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8806101U 1988-05-07
DE8806101U DE8806101U1 (en) 1988-05-07 1988-05-07 Roof ventilation pipe

Publications (3)

Publication Number Publication Date
EP0341376A2 EP0341376A2 (en) 1989-11-15
EP0341376A3 EP0341376A3 (en) 1991-10-02
EP0341376B1 true EP0341376B1 (en) 1992-12-02

Family

ID=6823842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102092A Expired - Lifetime EP0341376B1 (en) 1988-05-07 1989-02-08 Roof ventilation pipe

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US (1) US4955167A (en)
EP (1) EP0341376B1 (en)
DE (2) DE8806101U1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8813239U1 (en) * 1988-10-21 1990-02-15 Klöber, Johannes, 5828 Ennepetal Roof covering panel
US5369413A (en) * 1993-07-02 1994-11-29 Hazeltine Corp. Q equalization in dual-element end-fire array antennas
DE9412522U1 (en) * 1994-08-03 1995-12-07 Klöber, Johannes, 58256 Ennepetal Roof ventilation pipe
US5876276A (en) * 1997-09-12 1999-03-02 Arbucci; Christopher B. Collapsible chimney cap
US5897434A (en) * 1997-10-24 1999-04-27 Arbucci; Christopher B. Chimney cap hood
GB2338057B (en) * 1998-06-05 2002-08-28 Ultraframe Uk Ltd Improvements in glazed roofs
US6022269A (en) * 1999-04-27 2000-02-08 Christopher Arbucci Stackable chimney cap
US6244006B1 (en) * 1999-09-08 2001-06-12 Richard Shue Vent pipe cover protective device
DE20313900U1 (en) * 2003-09-04 2003-12-18 Blau Kunststofftechnik Zweigniederlassung Der Tesma Europa Gmbh Lids, especially fuel caps
DE102009043172A1 (en) * 2009-09-26 2011-06-16 Monier Roofing Components Gmbh Roof tile with opening
US10663192B2 (en) 2013-01-04 2020-05-26 Fleming Vaughn Carroll Vertical vent stack cap
US9416986B2 (en) 2013-06-24 2016-08-16 The Rectorseal Corporation Valve for roof vent
US9534392B2 (en) * 2014-02-24 2017-01-03 Liberty Diversified International, Inc. Telescoping pipe boot
US10024477B2 (en) * 2016-06-08 2018-07-17 Larry A. Villella Anti-ice buildup system for roof vent pipes
PL432822A1 (en) * 2020-02-03 2021-08-09 Wirplast - Więcek Spółka Jawna Positioning element

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Publication number Priority date Publication date Assignee Title
US510884A (en) * 1893-12-19 Cap for sewer and other pipes
US1549813A (en) * 1921-03-31 1925-08-18 Gottlieb Burger Indermuhle Head for chimneys, smoke pipes, and the like
US1490186A (en) * 1922-01-06 1924-04-15 Rowe Walter Eddie Dustproof breather
US3892169A (en) * 1974-02-26 1975-07-01 Frank R Jarnot Readily installed vent for flexible cover panel
AU5874980A (en) * 1979-06-22 1981-01-08 Gaf Corporation Roof vent
US4399743A (en) * 1981-10-15 1983-08-23 Plastic Oddities, Inc. Vent pipe cap
DE8710070U1 (en) * 1987-07-23 1987-10-22 Schnorr, Marin, 6729 Hatzenbühl Over-roof ventilation device

Also Published As

Publication number Publication date
EP0341376A3 (en) 1991-10-02
US4955167A (en) 1990-09-11
DE8806101U1 (en) 1989-09-07
DE58902853D1 (en) 1993-01-14
EP0341376A2 (en) 1989-11-15

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