EP0654568B1 - Prefabricated staircase construction for a flight of stairs - Google Patents

Prefabricated staircase construction for a flight of stairs Download PDF

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Publication number
EP0654568B1
EP0654568B1 EP94118277A EP94118277A EP0654568B1 EP 0654568 B1 EP0654568 B1 EP 0654568B1 EP 94118277 A EP94118277 A EP 94118277A EP 94118277 A EP94118277 A EP 94118277A EP 0654568 B1 EP0654568 B1 EP 0654568B1
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EP
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Prior art keywords
sleeves
supporting
sections
support
pipe sections
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EP94118277A
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German (de)
French (fr)
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EP0654568A1 (en
Inventor
Herbert Ernst
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/022Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/035Stairways consisting of a plurality of assembled modular parts without further support

Definitions

  • the present invention relates to a support structure for a flight of stairs suitable for a stair run, which has at least one spar and is formed from a plurality of strung together, connected to one another and staggered support elements, on the one hand from the support of a step plate serving horizontal support bars and on the other hand consist of two connecting struts connecting each other, designed as pipe pieces, sleeves or the like.
  • the horizontal support bars and the vertical support struts are braced together by means of vertical support bolts acting as tie rods and passing through the support supports, and the inner diameter of the pipe pieces, sleeves or the like ... Are larger than the outer diameter of the support bolts.
  • the support supports each have vertical bores, through which the aforementioned support bolts then extend. Since these props are made of solid material, they are not only very expensive, but also have a high weight. Due to the large number of these props, the weight of the entire support structure is also quite large.
  • the object of this invention is now to be able to easily adapt this supporting structure, which is made of both metal and wood, together with its associated tread plates to the existing building conditions and dimensions.
  • the pipe sections or sleeves can be laterally displaced within the clear width of the supporting structure in relation to the supporting bolts passing through them in such a way that they assume an eccentric position with respect to the central axis of these supporting bolts and the neighboring ones on the outer shells of these tubular pieces or Sleeves adjacent tread plates can thus each take a position adapted to the intended staircase.
  • a preferred embodiment according to the invention is characterized in that the pipe pieces, the sleeves or the like are composed of parts glued together.
  • the use of such glued wood is particularly advantageous in that it prevents any cracking of the wood from the outset.
  • Each of the sections expediently extends only over a sector of the circumference of these pipe sections or sleeves, these sections then being able to be connected to one another again by tongue and groove.
  • These pipe pieces or sleeves can then be composed of 12 sections each.
  • the straight staircase shown in FIGS. 1 and 2 has a single-beam support structure 1, on the horizontal support bars 2 made of wood, a step plate 3, which is only shown in broken lines, is to be placed on each.
  • the horizontal support bars 2 are arranged in a row in a step-like manner, with each horizontal support bar 2 with its underside 4 being supported on the upper side 6 of the horizontal support bar 2 underneath via a sleeve 5 serving as a support and also made of wood.
  • support bolts 7 made of steel, serving as tie rods, each consisting of a round material, on the upper end faces of which a head plate designated 8 is screwed or welded, which is snug and flush in one in the top 6 of the support beam 2 machined cylindrical recess 9 engages.
  • the support bolt 7 is also assigned a clamping screw 10, the shaft 11 of which engages in a threaded bore 12 machined in the lower end face of the support bolt 7 and whose head 13 is supported by a washer 14 on the underside 4 of the support arm 2 in question.
  • the sleeve 5 As far as the sleeve 5 mentioned above is concerned, it is composed of 12 individual sections 15 with a trapezoidal cross section. A particularly high section modulus of this sleeve 5 can be achieved in that its inner diameter d is approximately twice as large as the diameter a of the supporting bolt 7 and thus between the supporting bolt 7 and the inner casing 16 of the sleeve 5 a cavity 17 with an annular cross section remains free. Should it be necessary in the case of special construction conditions or dimensions, this annular cavity 17 also allows this sleeve 5 to be offset eccentrically with respect to the support bolt 7 extending through it, as is shown schematically in FIG. 3, for example. In this case, the tread plate 3 resting on the support bar 2 is also shown, the rear edge 31 of which rests on the outer jacket 32 of the sleeve 5.
  • a continuous tubular body is first to be made, from which the sleeves 5 required in each case can then easily be cut to a length of about 16 cm to 19 cm at the construction site.
  • a cylindrical recess 18 is formed, similar to a bowl, whose diameter b is only slightly larger than the outer diameter D of the sleeve 5.
  • this recess 18 forms a secure fit for the sleeve edge 19 inserted into it, which is thus supported on the inner edge 20 of this recess 18.
  • a correspondingly dimensioned annular groove 21 is provided, how such is incorporated, for example, in the manner shown in FIGS. 4 and 5 in both the bottom 4 and the top 6 of the upper support beam 2. This annular groove 21 also results in a secure fit of the sleeve edge 19 engaging in this.
  • FIG. 6 shows, on an enlarged scale, a partial view of the sleeve 5 composed of several partial pieces 15.
  • all partial pieces 15 have a groove 22 and an associated tongue 23, each of which fits snugly into the groove 22 of the adjacent partial piece 15.
  • a sleeve 5 with this tongue and groove construction is characterized by a particular stiffness.
  • this support structure 1 according to the invention is provided for a straight staircase 24, the same components being identified again by the same reference numerals.
  • this support structure 1 is also suitable for a quarter turn 25 with the radius R, as shown in FIG. 8.
  • a cantilever arm 27 connecting the support structure 1 to an adjacent wall 26 and shown in section in FIG. 1 is additionally provided.
  • the end 28 of the associated support bolt 7 projects beyond the lower surface 4 of the support beam 2 and through an upper bore 29 into the hollow profile of the cantilever arm 27.
  • the previously mentioned clamping screw 10 is likewise provided, the shaft 11 of which extends through a bore 30 opposite the bore 29 and is screwed into a similar threaded bore 12 of the support bolt 7.

Abstract

Figure 1 shows a sectional view of a single-string load-bearing structure 1 which is suitable for a flight of stairs and exhibits a multiplicity of horizontal load-bearing strings 2 which are arranged in the form of steps one behind the other in a row and are supported on one another by a sleeve 5 in each case. As connecting element, use is made, in this arrangement, of load-bearing bolts 7 which act as tie rods and of which the shanks 11 engage through bores 6a, located in the load-bearing strings 2, and the sleeves 5 and are braced by means of screws 10. The external diameter a of said load-bearing-bolt shanks 11 is, in this arrangement, smaller than the internal diameter d of the sleeves 5, such that the latter can be displaced in the radial direction with respect to the load-bearing-bolt shanks 11. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine für einen Treppenlauf geeignete Tragkonstruktion für einen Treppenlauf, die mindestens einen Holm aufweist und aus einer Vielzahl aneinandergereihter, mit einander verbundener und stufenweise zu einander versetzter Tragelemente gebildet ist, die einerseits aus der Auflage jeweils einer Trittplatte dienenden horizontalen Tragholmen und andererseits aus jeweils zwei diese Tragholme miteinander verbindenden, als Rohrstücke, Hülsen od. dgl. ausgebildeten Tragstützen bestehen, wobei die horizontalen Tragholme und die vertikalen Tragstützen mittels vertikaler, als Zuganker wirkender und durch die Tragstützen hindurchgreifender Tragbolzen miteinander verspannt und die Innendurchmesser der Rohrstücke, Hülsen od. dgl. größer als die Außendurchmesser der Tragbolzen sind.The present invention relates to a support structure for a flight of stairs suitable for a stair run, which has at least one spar and is formed from a plurality of strung together, connected to one another and staggered support elements, on the one hand from the support of a step plate serving horizontal support bars and on the other hand consist of two connecting struts connecting each other, designed as pipe pieces, sleeves or the like. The horizontal support bars and the vertical support struts are braced together by means of vertical support bolts acting as tie rods and passing through the support supports, and the inner diameter of the pipe pieces, sleeves or the like ... Are larger than the outer diameter of the support bolts.

Bei einer durch die deutsche Offenlegungsschrift 36 24 151 bekanntgewordenen Ausführungsform einer solchen Tragkonstruktion weisen die Tragstützen jeweils vertikale Bohrungen auf, durch die dann die zuvor erwähnten Tragbolzen hindurchgreifen. Da diese Tragstützen dabei aus Vollmaterial bestehen, sind diese nicht nur sehr teuer, sondern weisen auch ein hohes Eigengewicht auf. Infolge der Vielzahl dieses Tragstützen ist somit auch das Eigengewicht der ganzen Tragkonstruktion recht groß.In one embodiment of such a support structure, which has become known from German published patent application 36 24 151, the support supports each have vertical bores, through which the aforementioned support bolts then extend. Since these props are made of solid material, they are not only very expensive, but also have a high weight. Due to the large number of these props, the weight of the entire support structure is also quite large.

Durch die deutsche Offenlegungsschrift 33 36 829 ist es ferner vorbekannt, die Tragstützen jeweils als Rohrstücke, Hülsen od. dgl. auszubilden, deren Innendurchmesser größer ist als der Außendurchmesser der durch diese hindurchgreifen Tragbolzen. Hierdurch ist das Widerstandsmoment dieser Rohrstücke und Hülsen sehr hoch, wodurch es wieder möglich ist, die Wandstärke dieser Tragstützen zu reduzieren, ohne etwa die Tragkraft derselben zu schwächen.Through the German laid-open specification 33 36 829 it is also previously known to design the support supports each as tubular pieces, sleeves or the like, the inside diameter of which is greater than the outside diameter of the support bolts which pass through them. As a result, the section modulus of these pipe sections and sleeves is very high, which makes it possible again to reduce the wall thickness of these support supports without weakening the load-bearing capacity thereof.

Aufgabe dieser Erfindung ist es nunmehr, diese sowohl aus Metall als auch aus Holz bestehende Tragkonstruktion zusammen mit deren zugehörigen Trittplatten ohne weiteres den jeweils bestehenden Baubedingungen und Bauabmessungen anpaßen zu können.The object of this invention is now to be able to easily adapt this supporting structure, which is made of both metal and wood, together with its associated tread plates to the existing building conditions and dimensions.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Rohrstücke, Hülsen od.dgl. mindestens teilweise gegenüber den durch sie hindurchgreifenden Tragbolzen seitlich versetzt und gegenüber der Mittelachse dieser Tragbolzen exzentrisch angeordnet sind.This object is achieved in that the pipe pieces, sleeves or the like. are at least partially offset laterally with respect to the support bolts passing through them and are arranged eccentrically with respect to the central axis of these support bolts.

Bei dieser Bauart lassen sich beim Aufbau der Tragkonstruktion deren Rohrstücke oder Hülsen somit innerhalb deren lichter Weite derart gegenüber den durch sie hindurch greifenden Tragbolzen seitlich versetzen, daß sie gegenüber der Mittelachse dieser Tragbolzen eine exzentrische Lage einnehmen und die benachbarten, an den Außenmänteln dieser Rohrstücke oder Hülsen anliegenden Trittplatten somit jeweils eine dem vorgesehenden Treppenlauf angepaßte Lage einnehmen können.With this type of construction, the pipe sections or sleeves can be laterally displaced within the clear width of the supporting structure in relation to the supporting bolts passing through them in such a way that they assume an eccentric position with respect to the central axis of these supporting bolts and the neighboring ones on the outer shells of these tubular pieces or Sleeves adjacent tread plates can thus each take a position adapted to the intended staircase.

Eine zu bevorzugende Ausführungsform zeichnet sich erfindungsgemäß dadurch aus, daß die Rohrstücke, die Hülsen od. dgl. aus miteinander verleimten Teilstücken zusammengesetzt sind. Die Verwendung von einem solchen verleimten Holz ist dabei insofern besonders vorteilhaft, als hierdurch von vornherein jede eventuelle Rißbildung des Holzes unterbunden wird.A preferred embodiment according to the invention is characterized in that the pipe pieces, the sleeves or the like are composed of parts glued together. The use of such glued wood is particularly advantageous in that it prevents any cracking of the wood from the outset.

Zweckmäßig erstreckt sich jedes der Teilstücke nur über einen Sektor des Umfanges dieser Rohrstücke oder Hülsen, wobei diese Teilstücke dann selbst wieder durch Nut und Feder miteinander verbunden sein können. Auch können diese Rohrstücke oder Hülsen dann aus jeweils 12 Teilstücken zusammengesetzt sein.Each of the sections expediently extends only over a sector of the circumference of these pipe sections or sleeves, these sections then being able to be connected to one another again by tongue and groove. These pipe pieces or sleeves can then be composed of 12 sections each.

Weitere Einzelheiten dieser Erfindung ergeben sich aus der folgenden Beschreibung einen beispielsweisen, aus Holz gefertigten Ausführungsform sowie den sich hieran anschließenden Ansprüchen.Further details of this invention emerge from the following description of an exemplary embodiment made of wood and the claims appended hereto.

Es zeigen:

Fig. 1
einen Längsschnitt der Tragkonstruktion,
Fig. 2
einen Querschnitt gemäß der Linie 2 - 2,
Fig. 3
eine Variante zur Fig. 2,
Fig. 4
einen der Fig. 1 entsprechenden Längsschnitt einer Variante,
Fig. 5
einen Querschnitt gemäß der Linie 5 - 5,
Fig. 6
eine Teilansicht der Stützhülse in vergrößertem Maßstab,
Fig. 7
eine Stirnansicht der Tragkonstruktion mit auf dieser aufgelegten Trittplatten,
Fig. 8
die Draufsicht einer Viertel-Wendelung der Tragkonstruktion ebenfalls mit aufgelegten Trittplatten und
Fig. 9
einen Ausschnitt aus der Fig. 8 in vergrößertem Maßstab.
Show it:
Fig. 1
a longitudinal section of the supporting structure,
Fig. 2
a cross section along the line 2 - 2,
Fig. 3
a variant of Fig. 2,
Fig. 4
1 corresponding longitudinal section of a variant,
Fig. 5
a cross section along the line 5 - 5,
Fig. 6
a partial view of the support sleeve on an enlarged scale,
Fig. 7
an end view of the supporting structure with tread plates placed on it,
Fig. 8
the top view of a quarter-turn of the supporting structure also with the step plates and
Fig. 9
a section of Fig. 8 on an enlarged scale.

Der in den Fig. 1 und 2 dargestellte geradlinige Treppenlauf weist eine einholmige Tragkonstruktion 1 auf, auf deren aus Holz bestehenden horizontalen Tragholmen 2 jeweils eine nur gestrichelt dargetellte Trittplatte 3 aufzulegen ist. Die horizontalen Tragholme 2 sind dabei in einer Reihe hintereinander stufenförmig angeordnet, wobei sich jeder horizontale Tragholm 2 mit seiner Unterseite 4 über eine als Tragstütze dienende und ebenfalls aus Holz gefertigt Hülse 5 auf der Oberseite 6 des darunter befindlichen horizontalen Tragholmes 2 abstützt.The straight staircase shown in FIGS. 1 and 2 has a single-beam support structure 1, on the horizontal support bars 2 made of wood, a step plate 3, which is only shown in broken lines, is to be placed on each. The horizontal support bars 2 are arranged in a row in a step-like manner, with each horizontal support bar 2 with its underside 4 being supported on the upper side 6 of the horizontal support bar 2 underneath via a sleeve 5 serving as a support and also made of wood.

Verbunden sind diese horizontalen Tragholme 2 durch aus Stahl gefertigte, als Zuganker dienende Tragbolzen 7, die jeweils aus einem Rundmaterial bestehen, an deren oberen Stirnseiten eine mit 8 bezeichnete Kopfscheibe angeschraubt oder angeschweißt ist, die satt und bündig in einer in der Oberseite 6 des Tragholmes 2 eingearbeiteten zylindrischen Ausnehmung 9 eingreift. Dem Tragbolzen 7 ist zudem noch jeweils eine Spannschraube 10 zugeordnet, deren Schaft 11 in eine in der unteren Stirnseite des Tragbolzens 7 eingearbeitete Gewindebohrung 12 eingreift und deren Kopf 13 sich über eine Unterlegscheibe 14 an der Unterseite 4 des betreffenden Tragholmes 2 abstützt.These horizontal support beams 2 are connected by support bolts 7 made of steel, serving as tie rods, each consisting of a round material, on the upper end faces of which a head plate designated 8 is screwed or welded, which is snug and flush in one in the top 6 of the support beam 2 machined cylindrical recess 9 engages. The support bolt 7 is also assigned a clamping screw 10, the shaft 11 of which engages in a threaded bore 12 machined in the lower end face of the support bolt 7 and whose head 13 is supported by a washer 14 on the underside 4 of the support arm 2 in question.

Was nun die zuvor schon erwähnte Hülse 5 betrifft, so ist diese aus 12 einzelnen Teilstücken 15 mit einem trapezartigen Querschnitt zusammengesetzt. Ein besonders hohes Widerstandsmoment dieser Hülse 5 läßt sich dabei dadurch erreichen, daß deren Innendurchmesser d etwa doppelt so groß ist wie der Durchmesser a des Tragbolzens 7 und somit zwischen diesem Tragbolzen 7 und dem Innenmantel 16 der Hülse 5 ein im Querschnitt ringförmiger Hohlraum 17 freibleibt. Sollte es bei besonderen Baubedingungen oder auch Bauabmessungen erforderlich sein, so erlaubt dieser ringförmige Hohlraum 17 auch ein exzentrisches Versetzen dieser Hülse 5 gegenüber dem durch diese hindurchgreifenden Tragbolzen 7, wie dieses beispielsweise schematisch in der Fig.3 dargestellt ist. In diesem Fall ist auch noch die auf dem Tragholm 2 aufliegende Trittplatte 3 dargestellt, die mit ihrer Hinterkante 31 an dem Außenmantel 32 der Hülse 5 anliegt.As far as the sleeve 5 mentioned above is concerned, it is composed of 12 individual sections 15 with a trapezoidal cross section. A particularly high section modulus of this sleeve 5 can be achieved in that its inner diameter d is approximately twice as large as the diameter a of the supporting bolt 7 and thus between the supporting bolt 7 and the inner casing 16 of the sleeve 5 a cavity 17 with an annular cross section remains free. Should it be necessary in the case of special construction conditions or dimensions, this annular cavity 17 also allows this sleeve 5 to be offset eccentrically with respect to the support bolt 7 extending through it, as is shown schematically in FIG. 3, for example. In this case, the tread plate 3 resting on the support bar 2 is also shown, the rear edge 31 of which rests on the outer jacket 32 of the sleeve 5.

Zur Herstellung dieser Hülsen 5 ist zunächst ein durchgehender Rohrkörper anzufertigen, von dem dann auf der Baustelle leicht die jeweils benötigten Hülsen 5 mit einer Länge von etwa 16 cm bis 19 cm abgelängt werden können.To produce these sleeves 5, a continuous tubular body is first to be made, from which the sleeves 5 required in each case can then easily be cut to a length of about 16 cm to 19 cm at the construction site.

Bei einer in den Fig. 4 und 5 gezeigten Variante ist in der Oberseite 6 des unteren horizontalen Tragholmes 2 eine ähnlich einem Napf ausgebildete zylinderische Ausnehmung 18 eingearbeitet, deren Durchmesser b nur wenig größer als der Außendurchmesser D der Hülse 5 ist. Damit aber bildet diese Ausnehmung 18 einen sicheren Sitz für den in sie eingesetzten Hülsenrand 19, der sich so an dem Innenrand 20 dieser Ausnehmung 18 abstützt. Eine andere Möglichkeit besteht auch darin, daß statt dieser Ausnehmung 18 eine entsprechend bemessene Ringnut 21 vorgesehen ist, wie eine solche beispielsweise in der in den Fig. 4 und 5 dargestellten Weise sowohl in der Unterseite 4 als auch der Oberseite 6 des oberen Tragholmes 2 eingearbeitet ist. Auch diese Ringnut 21 bewirkt wieder einen sicheren Sitz des in diese eingreifenden Hülsenrandes 19.In a variant shown in FIGS. 4 and 5, in the upper side 6 of the lower horizontal support bar 2, a cylindrical recess 18 is formed, similar to a bowl, whose diameter b is only slightly larger than the outer diameter D of the sleeve 5. However, this means that this recess 18 forms a secure fit for the sleeve edge 19 inserted into it, which is thus supported on the inner edge 20 of this recess 18. Another possibility is that instead of this recess 18, a correspondingly dimensioned annular groove 21 is provided, how such is incorporated, for example, in the manner shown in FIGS. 4 and 5 in both the bottom 4 and the top 6 of the upper support beam 2. This annular groove 21 also results in a secure fit of the sleeve edge 19 engaging in this.

Die weitere Fig. 6 zeigt in vergrößertem Maßstab eine Teilansicht der aus mehreren Teilstücken 15 zusammengesetzten Hülse 5. In diesem Fall weisen alle Teilstücke 15 eine Nut 22 und eine zugehörige Feder 23 auf, die jeweils satt in die Nut 22 des benachbarten Teilstückes 15 eingreift. Eine Hülse 5 mit dieser Feder/Nut-Konstruktion zeichnet sich dabei durch eine besondere Steifigkeit aus.The further FIG. 6 shows, on an enlarged scale, a partial view of the sleeve 5 composed of several partial pieces 15. In this case, all partial pieces 15 have a groove 22 and an associated tongue 23, each of which fits snugly into the groove 22 of the adjacent partial piece 15. A sleeve 5 with this tongue and groove construction is characterized by a particular stiffness.

Gemäß der Fig. 7 ist diese erfingungsgemäße Tragkonstruktion 1 für einen geradlinigen Treppenlauf 24 vorgesehen, wobei die gleichen Bauteile wieder durch die gleichen Bezugszeichen gekennzeichnet sind.According to FIG. 7, this support structure 1 according to the invention is provided for a straight staircase 24, the same components being identified again by the same reference numerals.

Diese Tragkonstruktion 1 ist aber ebenso auch für eine Viertel-Wendelung 25 mit dem Radius R geeignet, wie dieses die Fig. 8 zeigt. In diesem zweiten Fall ist zusätzlich noch ein die Tragkonstruktion 1 mit einer benachbarten Wand 26 verbindender, in der Fig. 1 im Schnitt dargestellter Kragarm 27 vorgesehen. Hierbei ragt das Ende 28 des zugehörigen Tragbolzens 7 über die Unterfläche 4 des Tragholmes 2 hinaus und durch eine obere Bohrung 29 in das Hohlprofil des Kragarmes 27 hinein. Zur Verbindung dieses Kragarmes 27 mit dem Tragbolzen 7 ist desgleichen die schon zuvor erwähnte Spannschraube 10 vorgesehen, deren Schaft 11 durch eine der Bohrung 29 gegenüberstehende Bohrung 30 hindurchgreift und in eine gleichartige Gewindebohrung 12 des Tragbolzens 7 eingeschraubt ist.However, this support structure 1 is also suitable for a quarter turn 25 with the radius R, as shown in FIG. 8. In this second case, a cantilever arm 27 connecting the support structure 1 to an adjacent wall 26 and shown in section in FIG. 1 is additionally provided. Here, the end 28 of the associated support bolt 7 projects beyond the lower surface 4 of the support beam 2 and through an upper bore 29 into the hollow profile of the cantilever arm 27. For the connection of this cantilever arm 27 to the support bolt 7, the previously mentioned clamping screw 10 is likewise provided, the shaft 11 of which extends through a bore 30 opposite the bore 29 and is screwed into a similar threaded bore 12 of the support bolt 7.

Bei einer solchen Viertel-Wendelung 25 ist die Anordnung der Trittplatten 3 jeweils von den auf der Ganglinie G in den gleichen Abständen c befindlichen Punkten P abhängig, wobei die schrägstehenden Vorderkanten 31 dieser Trittplatten 3 jeweils um das Maß e über die Hinterkanten 31 der darunter befindlichen Trittplatte 3 vorstehen müssen. Infolge der Schrägstellung dieser Plattenkanten 31 ergeben sich unterschiedliche Abstände f gegenüber den benachbarten Tragbolzen 7. Sollen nun bereits vorgefertigte Trittplatten 3 verwendet werden, so lassen sich diese unterschiedlichen Abstände f dadurch ausgleichen, daß die als Anlage für die hinteren Plattenkanten 31 dienenden Hülsen 5 gegenüber den Tragbolzen 7 seitlich und damit exzentrisch versetzt werden, wie dieses bereits oben schon erwähnt und auch in den Fig. 8 und 9 dargestellt ist.In such a quarter-turn 25, the arrangement of the tread plates 3 is dependent on the points P located on the line G at the same distances c, the inclined front edges 31 of these tread plates 3 in each case by the dimension e over the rear edges 31 of the ones below Footplate 3 must protrude. As a result of the inclined position of these plate edges 31, there are different distances f from the adjacent support bolts 7. If prefabricated tread plates 3 are now to be used, these different distances f can be compensated for by the fact that the sleeves 5 serving as an attachment for the rear plate edges 31 are opposite the ones Support bolts 7 are laterally and thus offset eccentrically, as already mentioned above and is also shown in FIGS. 8 and 9.

Schließlich ist es auch noch zweckmäßig, wenn die vorderen und auch hinteren Stirnkanten 33 der Tragholme 2 abgerundet sind.Finally, it is also expedient if the front and rear end edges 33 of the support bars 2 are rounded.

Claims (5)

  1. Supporting structure for a flight, with at least one capping piece and formed of many adjacent, interconnected and stepwise staggered supporting members which on one hand consist of the support of the horizontal supporting capping pieces used as step plate and on the other hand consists of two of the carrying supports each interconnecting these supporting capping pieces and which are formed as pipe sections, sleeves or the like, while the horizontal supporting capping pieces and the vertical carrying supports are braced by means of vertical supporting studs acting as tie rod and gripping through the carrying supports; the inside diameters of the pipe sections, sleeves or the like are larger than the outside diameters of the supporting studs
    characterized in that
    the pipe sections, sleeves or the like are at least partially staggered laterally opposite the supporting studs (7) gripping through them and are arranged eccentrically opposite the center line of these supporting studs (7).
  2. Supporting structure acc. to claim 1, characterized in that the pipe sections, sleeves (5) and the like are made of timber and are composed of bonded sections (15).
  3. Supporting structure acc. to claim 1 and/or 2,
    characterized in that
    each of the sections (15) extend across a sector of the circumference of the pipe sections or sleeves (5).
  4. Supporting structure acc. to claim 2 and/or 3,
    characterized in that
    the sections (15) are connected by tongue-and-groove joints (22/23).
  5. Supporting structure acc. to claims 2 to 4,
    characterized in that
    pipe sections, sleeves (5) or the like are composed of 12 sections (15) each.
EP94118277A 1993-11-23 1994-11-21 Prefabricated staircase construction for a flight of stairs Expired - Lifetime EP0654568B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9317878U 1993-11-23
DE9317878U DE9317878U1 (en) 1993-11-23 1993-11-23 Supporting structure for a flight of stairs

Publications (2)

Publication Number Publication Date
EP0654568A1 EP0654568A1 (en) 1995-05-24
EP0654568B1 true EP0654568B1 (en) 1997-09-03

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EP94118277A Expired - Lifetime EP0654568B1 (en) 1993-11-23 1994-11-21 Prefabricated staircase construction for a flight of stairs

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AT (1) ATE157731T1 (en)
DE (2) DE9317878U1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1923522A1 (en) * 2006-11-14 2008-05-21 M. Clément Léonard Noel Crasson Step for staircases, method of joining such steps and thus manufactured stairs

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1683613C3 (en) * 1967-11-02 1974-07-11 Freder 2931 Bredehorn Stuckenbrok Support structure for a straight and / or spiral flight of stairs
DE1800814A1 (en) * 1968-10-03 1970-06-04 Bauzubehoer Vertriebsgesellsch Stair component, especially for stairs to be built according to the modular principle
DE2623523A1 (en) * 1976-05-26 1977-12-15 Zimmermann Erich Metal bar staircase support structure - has horizontal rectangular and cylindrical tubes supported by threaded spacers
DE2735335A1 (en) * 1977-08-05 1979-02-15 Helmut Rheindorf Staircase with cantilevered metal steps - has steps vertically and laterally adjustable between top and bottom landings
DE2737168A1 (en) * 1977-08-18 1979-02-22 Beate Mertens Saddle staircase unit assembled step - has ribs in cast aluminium alloy box centre and support wing pieces
DE3336829A1 (en) * 1983-10-10 1985-04-25 Marmor-Eckart Inhaber Fer. Eckart, 6418 Hünfeld Single-leg staircase
DE3624151A1 (en) * 1986-07-17 1988-01-21 Herbert Ernst Load-bearing structure for a flight of stairs

Also Published As

Publication number Publication date
ATE157731T1 (en) 1997-09-15
EP0654568A1 (en) 1995-05-24
DE9317878U1 (en) 1994-12-22
DE59403958D1 (en) 1997-10-09

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