EP1167651B1 - Method for the design and construction of cantilever staircases - Google Patents

Method for the design and construction of cantilever staircases Download PDF

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Publication number
EP1167651B1
EP1167651B1 EP01113239A EP01113239A EP1167651B1 EP 1167651 B1 EP1167651 B1 EP 1167651B1 EP 01113239 A EP01113239 A EP 01113239A EP 01113239 A EP01113239 A EP 01113239A EP 1167651 B1 EP1167651 B1 EP 1167651B1
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EP
European Patent Office
Prior art keywords
plates
steps
stone
building wall
prefabricated
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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
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EP01113239A
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German (de)
French (fr)
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EP1167651A3 (en
EP1167651A2 (en
EP1167651B9 (en
Inventor
Salvatore Ceravolo
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CERAVOLO, ROSA INGEBORG
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Ceravolo Salvatore
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Publication of EP1167651A2 publication Critical patent/EP1167651A2/en
Publication of EP1167651A3 publication Critical patent/EP1167651A3/en
Publication of EP1167651B1 publication Critical patent/EP1167651B1/en
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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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/104Treads
    • E04F11/116Treads of stone, concrete or like material or with an upper layer of stone or stone like material, e.g. ceramics, concrete; of glass or with an upper layer of glass

Definitions

  • the present invention is a method for the planning and construction of at least partially coiled cantilevered stairs from prefabricated panels and bolted connecting rods, wherein the plates already have prefabricated openings for the connecting rods.
  • At least partially coiled cantilevered stairs made of prefabricated plates and screwed connecting rods are known. These stairs are offered in certain given dimensions and sizes. It is therefore necessary to set these dimensions already in the planning of the house and to comply with the shell. Subsequent deviations from this are not possible.
  • blind holes are present, which are undercut, and in which in a sleeve-shaped intermediate lining made of plastic, an internal thread is present, in which the connecting bolts are screwed, wherein the Intermediate feed is cut in the longitudinal direction and at least one of the threads is conical.
  • the object of the present invention has been made on the one hand to simplify the process for planning and construction of self-supporting stairs from prefabricated panels and screwed connecting rods, but also to make more flexible, not only in terms of dimensions, but also with respect to the insertable plate materials, said However, plates made of natural stone, artificial stone or ceramic are preferred.
  • the invention has been made the task of designing partially coiled cantilevered stairs made of prefabricated panels and bolted connecting rods visually appealing and possibly even give the appearance and technical advantages of concreted on-site coiled staircases with coverings of natural stone, artificial stone or ceramic, this Both for new buildings as well as for the renovation of old buildings should be possible.
  • a method for planning and construction of locally concreted spiral staircases with coverings of natural stone and artificial stone is known from DE 196 15 079 A1 of the applicant and inventor.
  • This method is not applicable in the manner described there for the planning and construction of at least partially coiled cantilevered stairs made of prefabricated panels and screwed connecting rods, the plates already have prefabricated openings for the connecting rods.
  • the coiled parts each consist of a four- to six-stage module which can be combined in any arrangement with modules for straight steps, wherein the dimensions of the plates in the coiled part are selected such that in that the prefabricated panels are smoothly cut at the inwardly facing end of the same width such that the uppermost and lowermost steps as well as the respective succeeding steps are mirror images of the imaginary ideal running line are such that the module of the coiled portion in the plan view is approximately a square, an inwardly facing corner is rounded round.
  • the plates used preferably consist of two plates, which are glued together by means of a woven or flow layer. This increases the stability and also allows the screwing with the stair bolt in a blind hole, so that this screw is covered at least from above and thus no longer visible.
  • connecting rods can be housed optically in or behind a shock, so that significant disadvantages of the previously known cantilevered stairs can be avoided.
  • a particularly preferred embodiment of such a shock consists of a sandwich in which a rigid foam layer is located between two plates, which in turn natural stone, artificial stone or ceramic can be used.
  • the averted from the building wall end of the shock may in turn have a decorative cover layer, so that the connecting rods in the finished stairs are no longer visible or recognizable.
  • thin sound insulating layers may be present between the plates and the joints.
  • an air gap or a sound-absorbing layer should be present.
  • FIG. 1 shows, in plan view, a staircase planned and constructed according to the invention, in which the helix is produced by 90 ° from six steps. In front, behind and in between, steps can be planned and installed.
  • Figure 2 shows a perspective view of this staircase, in which the connecting rods are installed in a shock, so that they are no longer recognizable from the outside. This shock also prevents the draft between the steps, which may be desirable in particular between the basement and the other floors.
  • the panels are made of the same material at the top and bottom and have the same surface finish, they can be used in both left-hand and right-hand staircases.
  • the lowest and highest plates of the spiral are interchangeable. Only the middle two of the six-stage version need be dimensioned differently, but can be used in the case of left-hand spiraling and right-hand spiraling. Together with the straight plates, it is therefore possible to build the stairs from only five different sized parts and to vary as desired.
  • Figure 3 shows the example of a dimensioning of such plates. From this it can be seen that for both-sided usability, the plates B1 and B12 and B5 and B8 are the same size and only the plates B2, B11, B3 and B4 must be dimensioned differently.
  • the inventive method leads not only to the planning and construction to the desired simplifications while maintaining flexibility, but also allows optimal use of materials used such as natural stone or artificial stone.
  • materials used such as natural stone or artificial stone.
  • ceramic plates it is also possible to avoid waste completely, since the plates can be shaped accordingly before the fire.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)

Abstract

To plan and erect free-standing stairs, at least partially in a spiral, they are composed of prefabricated steps with prepared holes and screw bonding rods, the curved stair sections in a 4-6 step module are combined with straight stair modules. The dimensions of the stair components are calculated to give the required stair shape at the center, start and end of the modules. The steps, in standard sizes, are cut smoothly so that the bottom and top steps, and the following steps have an identical mirror image, so that when viewed in plan the assembled module is a cube with an inner corner cut round.

Description

Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Planung und zum Bau von zumindest teilweise gewendelten freitragenden Treppen aus vorgefertigen Platten und verschraubbaren Verbindungsstäben, wobei die Platten bereits vorgefertigte Öffnungen für die Verbindungsstäbe aufweisen.The present invention is a method for the planning and construction of at least partially coiled cantilevered stairs from prefabricated panels and bolted connecting rods, wherein the plates already have prefabricated openings for the connecting rods.

Zumindest teilweise gewendelte freitragende Treppen aus vorgefertigten Platten und verschraubbaren Verbindungsstäben sind bekannt. Diese Treppen werden in bestimmten vorgegebenen Dimensionen und Größen angeboten. Es ist somit nötig, bereits bei der Planung des Hauses diese Dimensionen festzulegen und beim Rohbau einzuhalten. Nachträgliche Abweichungen hiervon sind nicht möglich.At least partially coiled cantilevered stairs made of prefabricated plates and screwed connecting rods are known. These stairs are offered in certain given dimensions and sizes. It is therefore necessary to set these dimensions already in the planning of the house and to comply with the shell. Subsequent deviations from this are not possible.

Aus dem DE-U-79 10 176 ist eine spezielle Verbindung zwischen Treppenstufen bekannt, bei welcher Sacklöcher vorhanden sind, die hinterschnitten sind, und in denen in einem hülsenförmigen Zwischenfutter aus Kunststoff ein Innengewinde vorhanden ist, in welches die Verbindungsbolzen eingeschraubt werden, wobei das Zwischenfutter in Längsrichtung aufgeschnitten ist und mindestens eines der Gewinde konisch ausgebildet ist.From DE-U-79 10 176 a special connection between steps is known in which blind holes are present, which are undercut, and in which in a sleeve-shaped intermediate lining made of plastic, an internal thread is present, in which the connecting bolts are screwed, wherein the Intermediate feed is cut in the longitudinal direction and at least one of the threads is conical.

Zum Verbinden der Stufen freitragender Treppen werden weiterhin von der Firma Thumm & Co. Bolzen angeboten, welche nach dem Verschrauben durch Dämmplättchen abgedeckt werden. Diese Abdeckungen werden in verschiedenen Ausgestaltungen angeboten wie vernickelt, verchromt, Mattnickel, Mattchrom, vergoldet, Edelstahl oder RAL-Farben. Mit diesen Bolzen ist es möglich, individuell für jeweilige Häuser zugeschnittene Platten zu verschrauben. Wegen ihrer generellen baurechtlichen Zulassung können diese Treppenbolzen universell eingesetzt werden.To connect the steps of cantilevered stairs are still offered by the company Thumm & Co. bolt, which are covered after screwing by Dämmplättchen. These covers are available in various designs such as nickel plated, chrome plated, matt nickel, matt chrome, gold plated, stainless steel or RAL colors. With these bolts It is possible to screw individually tailored panels for each house. Because of their general building permit, these stair bolts can be used universally.

Die Erfindung hat sich die Aufgabe gestellt, einerseits das Verfahren zur Planung und zum Bau von freitragenden Treppen aus vorgefertigten Platten und verschraubbaren Verbindungsstäben zu vereinfachen, aber auch flexibler zu gestalten, und zwar nicht nur bezüglich der Dimensionen, sondern auch bezüglich der einsetzbaren Plattenmaterialien, wobei jedoch Platten aus Naturstein, Kunststein oder Keramik bevorzugt sind.The object of the present invention has been made on the one hand to simplify the process for planning and construction of self-supporting stairs from prefabricated panels and screwed connecting rods, but also to make more flexible, not only in terms of dimensions, but also with respect to the insertable plate materials, said However, plates made of natural stone, artificial stone or ceramic are preferred.

Weiterhin hat sich die Erfindung die Aufgabe gestellt, teilweise gewendelte freitragende Treppen aus vorgefertigten Platten und verschraubbaren Verbindungsstäben optisch ansprechender auszugestalten und gegebenenfalls sogar das Aussehen und die technischen Vorteile von vor Ort betonierten gewendelten Treppenläufen mit Belägen aus Naturstein, Kunststein oder Keramik zu geben, wobei dies sowohl für Neubauten als auch für die Sanierung von Altbauten möglich sein soll.Furthermore, the invention has been made the task of designing partially coiled cantilevered stairs made of prefabricated panels and bolted connecting rods visually appealing and possibly even give the appearance and technical advantages of concreted on-site coiled staircases with coverings of natural stone, artificial stone or ceramic, this Both for new buildings as well as for the renovation of old buildings should be possible.

Ein Verfahren zur Planung und zum Bau von vor Ort betonierten gewendelten Treppenläufen mit Belägen aus Naturstein und Kunststein ist bekannt aus der DE 196 15 079 A1 des Anmelders und Erfinders.A method for planning and construction of locally concreted spiral staircases with coverings of natural stone and artificial stone is known from DE 196 15 079 A1 of the applicant and inventor.

Dieses Verfahren ist in der dort beschriebenen Art nicht einsetzbar zur Planung und zum Bau von zumindest teilweise gewendelten freitragenden Treppen aus vorgefertigten Platten und verschraubbaren Verbindungsstäben, wobei die Platten bereits vorgefertigte Öffnungen für die Verbindungsstäbe aufweisen.This method is not applicable in the manner described there for the planning and construction of at least partially coiled cantilevered stairs made of prefabricated panels and screwed connecting rods, the plates already have prefabricated openings for the connecting rods.

Die oben genannten Aufgaben werden jetzt dadurch gelöst, dass die gewendelten Teile jeweils aus einem vier- bis sechsstufigen Modul bestehen, welches in beliebiger Anordnung kombinierbar ist mit Modulen für gerade Stufen, wobei die Abmessungen der Platten im gewendelten Teil so gewählt sind, dass die fiktive ideale Lauflinie annähernd in der Mitte des Anfangs und des Endes des gewendelten Moduls liegt, wobei die vorgefertigten Platten an dem nach innen weisenden Ende in gleicher Breite dergestalt glatt abgeschnitten sind, dass die oberste und unterste Stufe sowie die jeweils folgenden Stufen spiegelbildlich gleich sind, so dass das Modul des gewendelten Teils in der Aufsicht annähernd ein Quadrat ist, dessen eine nach innen weisenden Ecke rundlich angeschnitten ist.The abovementioned objects are now achieved in that the coiled parts each consist of a four- to six-stage module which can be combined in any arrangement with modules for straight steps, wherein the dimensions of the plates in the coiled part are selected such that in that the prefabricated panels are smoothly cut at the inwardly facing end of the same width such that the uppermost and lowermost steps as well as the respective succeeding steps are mirror images of the imaginary ideal running line are such that the module of the coiled portion in the plan view is approximately a square, an inwardly facing corner is rounded round.

Die verwendeten Platten bestehen vorzugsweise aus jeweils zwei Platten, die mittels einer Gewebe- oder Fließschicht miteinander verklebt sind. Dies erhöht die Stabilität und ermöglicht darüber hinaus die Verschraubung mit den Treppenbolzen in einem Sackloch, so dass diese Verschraubung zumindest von oben abgedeckt und somit nicht mehr sichtbar ist.The plates used preferably consist of two plates, which are glued together by means of a woven or flow layer. This increases the stability and also allows the screwing with the stair bolt in a blind hole, so that this screw is covered at least from above and thus no longer visible.

Weiterhin können die Verbindungsstäbe optisch in oder hinter einem Stoß untergebracht werden, so dass wesentliche Nachteile der bisher bekannten freitragenden Treppen vermieden werden können. Eine besonders bevorzugte Ausführungsform eines derartigen Stoßes besteht aus einem Sandwich, in welchem sich eine Hartschaumschicht zwischen zwei Platten befindet, wobei wiederum Naturstein, Kunststein oder Keramik zur Anwendung kommen kann.Furthermore, the connecting rods can be housed optically in or behind a shock, so that significant disadvantages of the previously known cantilevered stairs can be avoided. A particularly preferred embodiment of such a shock consists of a sandwich in which a rigid foam layer is located between two plates, which in turn natural stone, artificial stone or ceramic can be used.

Das von der Gebäudewand abgewendete Ende des Stoßes kann dabei wiederum eine dekorative Abdeckschicht aufweisen, so dass die Verbindungsstäbe bei der fertigen Treppe überhaupt nicht mehr sichtbar oder erkennbar sind.The averted from the building wall end of the shock may in turn have a decorative cover layer, so that the connecting rods in the finished stairs are no longer visible or recognizable.

Zur weiteren Unterdrückung des Trittschalls können zwischen den Platten und den Stößen jeweils dünne schalldämmende Schichten vorhanden sein. Darüber hinaus sollte vorzugsweise zwischen den Platten und der Gebäudewand sowie gegebenenfalls zwischen den Stößen und der Gebäudewand ein Luftspalt oder eine schalldämmende Schicht vorhanden sein.To further suppress the impact sound thin sound insulating layers may be present between the plates and the joints. In addition, preferably between the plates and the building wall and optionally between the joints and the building wall an air gap or a sound-absorbing layer should be present.

Schließlich ist es möglich, die gesamte von der Gebäudewand abgewendete Seite der Treppe mit einer dekorativen Platte abzudecken und sogar die gesamte Unterseite der Treppe mit einer dekorativen Deckschicht zu verkleiden, so dass optisch der Eindruck entsteht, dass es sich um eine vor Ort betonierte gewendelte Treppe handele. Das erfindungsgemäße Verfahren zur Planung und zum Bau von freitragenden Treppen ist somit sehr flexibel und variabel ausgestaltungsfähig und ermöglicht dem Architekten und Bauherrn eine sehr individuelle Gestaltung. Trotzdem lässt sich Planung und Bau dieser teilweise gewendelten freitragenden Treppen in starkem Maße rationalisieren, da mit relativ wenigen vorgefertigten und gleichdimensionierten Platten mit bereits vorgefertigten Öffnungen die teilweise gewendelte freitragende Treppe gefertigt werden kann, da diese Module in beliebiger Anordnung kombinierbar sind mit Modulen für gerade Stufen. Es kann somit aus wenigen typisierten Teilen eine teilweise gewendelte freitragende Treppe gebaut werden bei variabler Dimensionierung und variabler Stockwerkhöhe.Finally, it is possible to avert the entire of the building wall Cover the side of the stairs with a decorative plate and even to cover the entire bottom of the stairs with a decorative top layer, so that visually creates the impression that it is a spiral staircase concreted on site. The inventive method for planning and construction of self-supporting stairs is thus very flexible and variable ausgestaltungsfähig and allows the architect and builder a very individual design. Nevertheless, planning and construction of these partially coiled cantilevered stairs can be rationalized to a great extent, since with relatively few prefabricated and equally dimensioned panels with pre-fabricated openings, the partially coiled cantilevered staircase can be made, since these modules can be combined in any arrangement with modules for straight steps , It can thus be built from a few typified parts a partially coiled self-supporting staircase with variable dimensions and variable floor height.

In den anliegenden Figuren sind bevorzugte Ausführungsformen der freitragenden Treppe dargestellt. Figur 1 zeigt in der Aufsicht eine erfindungsgemäß geplante und gebaute Treppe, in welcher die Wendelung um 90° aus sechs Stufen hergestellt ist. Davor, dahinter und dazwischen können gerade Stufen mit eingeplant und eingebaut werden.In the accompanying figures preferred embodiments of the self-supporting staircase are shown. FIG. 1 shows, in plan view, a staircase planned and constructed according to the invention, in which the helix is produced by 90 ° from six steps. In front, behind and in between, steps can be planned and installed.

Figur 2 zeigt eine perspektivische Darstellung dieser Treppe, bei welcher die Verbindungsstäbe eingebaut sind in einem Stoß, so dass sie von außen nicht mehr erkennbar sind. Dieser Stoß verhindert auch den Luftzug zwischen den Treppenstufen, was insbesondere zwischen dem Kellergeschoss und den übrigen Geschossen erwünscht sein kann.Figure 2 shows a perspective view of this staircase, in which the connecting rods are installed in a shock, so that they are no longer recognizable from the outside. This shock also prevents the draft between the steps, which may be desirable in particular between the basement and the other floors.

Insofern die Platten oben und unten aus gleichem Material bestehen und eine gleiche Oberflächenbearbeitung aufweisen, können sie sowohl bei linksgewendelten als auch rechtsgewendelten Treppen zum Einsatz kommen. Dabei sind die jeweils untersten und obersten Platten der Wendelung austauschbar. Nur die beiden mittleren der sechsstufigen Ausführung müssen anders dimensioniert sein, können aber bei Linkswendelung und Rechtswendelung zum Einsatz kommen. Zusammen mit den geraden Platten besteht somit die Möglichkeit, die Treppen aus nur fünf verschieden dimensionierten Teilen zu bauen und dabei beliebig zu variieren.Insofar as the panels are made of the same material at the top and bottom and have the same surface finish, they can be used in both left-hand and right-hand staircases. The lowest and highest plates of the spiral are interchangeable. Only the middle two of the six-stage version need be dimensioned differently, but can be used in the case of left-hand spiraling and right-hand spiraling. Together with the straight plates, it is therefore possible to build the stairs from only five different sized parts and to vary as desired.

Figur 3 zeigt das Beispiel einer Dimensionierung derartiger Platten. Hieraus ist erkennbar, dass bei beidseitiger Benutzbarkeit die Platten B1 und B12 sowie B5 und B8 gleich dimensioniert sind und nur die Platten B2, B11, B3 und B4 verschieden dimensioniert werden müssen.Figure 3 shows the example of a dimensioning of such plates. From this it can be seen that for both-sided usability, the plates B1 and B12 and B5 and B8 are the same size and only the plates B2, B11, B3 and B4 must be dimensioned differently.

Das erfindungsgemäße Verfahren führt nicht nur bei der Planung und beim Bau zu den erwünschten Vereinfachungen bei Erhalt der Flexibilität, sondern ermöglicht auch eine optimale Nutzung der eingesetzten Materialien wie Naturstein oder Kunststein. Bei Verwendung von Platten aus Keramik ist es darüber hinaus möglich, Verschnitt völlig zu vermeiden, da die Platten schon vor dem Brand entsprechend geformt werden können.The inventive method leads not only to the planning and construction to the desired simplifications while maintaining flexibility, but also allows optimal use of materials used such as natural stone or artificial stone. When using ceramic plates, it is also possible to avoid waste completely, since the plates can be shaped accordingly before the fire.

Claims (9)

  1. A method for planning and constructing of at least partly wound self-supporting stairs of prefabricated plates of stone, artificial stone or ceramics and screwable connecting bars, the plates having prefabricated openings for the connecting bars, characterized in that the wound parts are each formed by a module of four to six steps adapted to be combined in any arrangement with modules of straight steps, the dimensions of the plates in the wound part being selected such that the imaginary ideal walking line is approximately on the centre of the beginning and the end of the wound module, the prefabricated plates being cut cleanly to the same width at their respective inward end such that the topmost and the lowermost as well as the respective following steps are mirror images of each other, so that the module of the wound part is almost a square in plan view, one of the inward directed corners thereof being cut roundly.
  2. The method of claim 1, characterized in that the plates are formed of two plates of stone, artificial stone or ceramics, glued together by means of a layer of woven or non-woven material.
  3. The method of claim 1 or 2, characterized in that the connecting bars are situated in or behind a face.
  4. The method of claim 3, characterized in that the face is a sandwich structure wherein a layer of rigid foam is provided between two plates of stone, artificial stone or ceramics.
  5. The method of claim 3 or 4, characterized in that the end of the face averted from the building wall has a decorative cover layer.
  6. The method of one of claims 2 to 5, characterized in that a thin sound-absorbing layer is provided between the plates and the faces, respectively.
  7. The method of one of claims 1 to 6, characterized in that an air gap or a sound-absorbing layer is provided between the plates and the building wall as well as between the faces and the building wall, if need be.
  8. The method of one of claims 2 to 7, characterized in that at least the side of the staircase averted from the building wall is covered by a decorative plate.
  9. The method of claim 8, characterized in that, in addition, the entire bottom side of the staircase is covered by a decorative cover layer.
EP01113239A 2000-06-29 2001-05-31 Method for the design and construction of cantilever staircases Expired - Lifetime EP1167651B9 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10031763 2000-06-29
DE10031763 2000-06-29

Publications (4)

Publication Number Publication Date
EP1167651A2 EP1167651A2 (en) 2002-01-02
EP1167651A3 EP1167651A3 (en) 2002-11-13
EP1167651B1 true EP1167651B1 (en) 2007-02-07
EP1167651B9 EP1167651B9 (en) 2007-09-12

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EP (1) EP1167651B9 (en)
AT (1) ATE353387T1 (en)
DE (1) DE50111998D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351477C (en) * 2005-04-08 2007-11-28 贵州大学 Integrally assembling staircase and method for fabricating same
DE102007020382A1 (en) * 2007-04-30 2008-11-13 Fritz Schauffele Faltwerktreppe and profile level for a folding staircase

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1683263A1 (en) * 1967-01-09 1969-11-06 A V Maltzahn & Co Prefabricated stair element
DE2364322A1 (en) * 1973-12-22 1975-06-26 Kenngott Kg CONSTRUCTIVELY SUPPORTING DESIGNERALLY SMALLER COMPONENT
DE7910176U1 (en) 1979-04-07 1979-08-30 Hinn, Manfred, 3564 Steffenberg STAIR LEVEL
DE3632081A1 (en) * 1986-09-20 1988-03-24 Wilfried Hamm Process for producing any required right-angled flights of stairs from standardised stairs
DE19615079C2 (en) 1996-04-17 2000-12-07 Salvatore Ceravolo Procedure for planning and building stairways

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Publication number Publication date
EP1167651A3 (en) 2002-11-13
EP1167651A2 (en) 2002-01-02
DE50111998D1 (en) 2007-03-22
EP1167651B9 (en) 2007-09-12
ATE353387T1 (en) 2007-02-15

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