EP3211153B1 - Step for stairway and spiral staircase - Google Patents
Step for stairway and spiral staircase Download PDFInfo
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- EP3211153B1 EP3211153B1 EP16170820.1A EP16170820A EP3211153B1 EP 3211153 B1 EP3211153 B1 EP 3211153B1 EP 16170820 A EP16170820 A EP 16170820A EP 3211153 B1 EP3211153 B1 EP 3211153B1
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- sections
- section
- holes
- side sections
- bent
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/112—Treads of metal or with an upper layer of metal
Definitions
- the invention relates to a step for a staircase according to claim 1 or 2, a spiral staircase according to claim 5 and to a blank for the step for a spiral staircase according to claim 15. It is known to make steps for stairs made of metal, for example, relatively stiff sheet metal. It is also known to attach steps made of sheet metal via a welding attachment to a support structure.
- the support structure may be formed by a part of the building or by cheeks, which are fastened to the building part and which in turn form a fastening possibility for the steps.
- the support structure may also be formed by a frame or the like.
- the document DE 202 14 211 U1 discloses a step for a staircase according to the preamble of claim 1.
- the invention has for its object to provide a step for a staircase of sheet material, which can be easily and inexpensively manufacture and assemble.
- This object is solved by the features of claim 1 or 2.
- this is folded from a flat sheet metal blank to a U- or C-shaped profile.
- Such a profile has a tread portion with a front and a rear folded side and folded end portions.
- the side portions or the end portions have tabs at the ends which are bendable against the inside or outside of the adjacent end portion or side portion.
- the tabs and the end sections or side sections have holes that lie one above the other when bending the tabs for a screw fastening to inner and outer holding means for the stairs.
- the tread is set under tension by the side portions and / or end portions folded by less than 90 ° and bent by subsequent deformation to about 90 ° are.
- a plastic deformation takes place in the edge area.
- the subsequent deformation is substantially elastic and therefore suitable for building up a clamping state.
- the tabs on the side portions or end portions, which in turn bent tabs on the side portions or end portions are brought under tension with their holes to the holes in the end portions or side sections in accordance and held by screws in the aligned holes under tension. In this way, the stages can take a higher load. Alternatively, at the same load, the blanks of sheet material may be made thinner.
- the invention is of course also applicable to steps for a spiral staircase or spiral staircase.
- the step is formed from a flat sheet metal blank into a U-shaped or C-shaped profile having front and rear side portions bent from the trapezoidal tread surface, an outer end portion bent from the tread surface and two inner end portions bent from the tread surface, which are formed by tabs of the side sections.
- the inner and outer flaps and the outer end portion have holes, the tread surface being similarly tensioned, as explained in connection with claim 1.
- the profile of the stage according to the invention formed in this way is also able to cope with high loads and has the advantage that the sheet metal blank can be relatively thin, which reduces the economic outlay.
- a welding of the stage according to the invention is not required, because a simple screw fastening can be provided.
- the stage according to the invention can be advantageously used both for straight and spiral staircases.
- the tread is preferably rectangular.
- the tread may be trapezoidal with a larger width outside and a smaller width inside.
- pedestal for the described stairs can equally be performed according to the invention, if they have the same or similar profile.
- the material is preferably aluminum or steel, in particular stainless steel into consideration.
- the peculiarity of a spiral staircase is that it has an internal, central spindle support, e.g. can be formed by a tube around which a helical railing with handrail is guided.
- the steps are located between the spindle support and the outer railing, depending on the arrangement of the spiral staircase, whether the steps are fixed to posts of the railing or to a cheek at the level of the steps or otherwise.
- the invention also relates to a spiral staircase and a step for this, as it is usable for free-standing spiral staircases. Freestanding spiral staircases are used e.g. needed in wind turbines. It should be avoided if possible to tie the outside stairs to the towers, so that the statics tight for the towers is not affected.
- the steps according to the invention can be delivered prefabricated to the construction site or finally formed at the construction site.
- the profile of the stage according to the invention formed in this way is relatively firm against bending forces as they occur when using the stage.
- a relatively thin sheet metal blank can be used for the formation of the stage.
- the attachment of the stage by means of screw fasteners, whereby welding is superfluous.
- the spindle support is formed as a tube with circular or polygonal cross-section. Preferably, a circular cross section is used.
- the steps are preferably bolted to the outside with two successive posts of a railing, whereby each post following a post is connected by means of superimposed screw fasteners with adjacent steps. Except for the lowest step, all steps are bolted to the outside with two posts, with one post also holding the next higher or next lower level. In this way, a post of the next level also takes on a one-step load.
- the side portions have inwardly folded flange portions.
- the outer end portion bears against the ends of the flange portions. This limits deformation of this end portion to the inside.
- the inner end edge of the tread portion is adapted to the contour of the spindle support, e.g. rounded if the column has a circular cross-section.
- the flange sections if provided, preferably abut on the spindle support and have a shape adapted to the contour of the spindle support, for example, they are also rounded.
- an embodiment of the invention provides that the screw fastening is arranged on the spindle support in the upper half of the end section or the fastening lugs.
- the screw fastening is at the beginning of the upper third of the end portion or the fastening portions.
- the bolt provided for the screw fastening is subjected to tension when a step is loaded while the lower portion of the end portion of the step is pressed against the spindle support.
- the stage of the invention can be used for a variety of uses of spiral staircases.
- the step is preformed from a flat sheet metal blank by bending and then finish formed by turning on about the end and / or side sections to 90 ° to create the tension on the tread. This can be done before it is brought to the construction site. Alternatively, the final molding can be done at the construction site. At the construction site, it is only necessary to fasten the step by means of screws in the manner described above. Elaborate welding accounts. In particular, when welding sheet metal parts very easily the risk of warping, which may not be guaranteed the security of the spiral staircase.
- the end portions can also be folded by less than 90 ° in order then to be bent by further bending by about 90 ° relative to the tread surface 102.
- tabs 112-116 connected, which are free from end portions 120 by a cut.
- the end sections 120, 122 are adjoined by flange sections 124, 126, which in turn are folded by 90 ° relative to the end sections 120, 122.
- the tabs 112-118 have holes 128.
- the end portions 120, 122 have holes 130 in the end portion.
- the flange portions are outboard 124, 126 on the flange portions 106, 108 or inside underneath.
- Fig. 2 is a perspective view of a small part of a cantilevered spiral staircase shown schematically.
- the steps are connected at the inner end to a spindle support 62, for example a tube of circular cross-section. Externally, the steps 60 are attached to posts 70 and 71, respectively, of an indicated helical railing which circumferentially surrounds the spindle support 62.
- a handrail 63 of the railing is supported in the lower end of a handrail 65, which is placed on a solid surface or attached to this.
- the entire staircase construction is supported by four supports fixed to the ground, allowing the spiral staircase to be cantilevered.
- the attachment of the supports 67 should not continue to be discribed. They are arranged at an angle of 90 ° around the spiral staircase.
- Side sections 16, 18 adjoin the tread surface 12 and are folded around lines 20 and 22, respectively, with respect to the tread surface.
- the lines 20, 22 are merely geometric.
- a processing of the blank 10 is not required for the fold.
- narrow flange sections close 24, 26, which are folded over edge lines 28, 30 relative to the side portions 16, 18.
- the side sections 16, 18 are also slightly trapezoidal, but with narrowing to the outer end.
- an outer end portion 32 connects, which is opposite the tread surface 12 via a crease line 34 by about 90 ° with respect to the tread surface 12 is bendable.
- a flange 36 connects, which is approximately 90 ° with respect to the end portion 32 can be folded.
- the end portion 32 has holes 33.
- tabs 40, 42 are provided, which are each provided with a hole 44.
- tab-shaped mounting lugs 46, 48 are provided, which can be bent around a Kantline 50 and 52 relative to the side portions 16, 18 by approximately 90 °. As in Fig. 1 to recognize the Kant lines 50, 52 relative to the end edge of the side portions 16, 18 offset slightly inwards. In addition, a cut is provided over the length of the offset, so that the edges of the side portions 16, 18 project slightly beyond the attachment lugs 46, 48 when folding the attachment lugs 46, 48. These are also provided with a hole 50.
- the attachment lug 46 also has a tab 54, which will be discussed in more detail below.
- the side portions 16, 18 are first folded by less than 90 ° about the lines 20, 22, for example by 80 °. Subsequently, by further elastic deformation work, the bending of the side sections 16, 18 up to about 90 °, so that the in turn bent tabs 40, 42 are aligned with their holes 44 with the holes 33 of the end portion 33. Through the aligned holes 33, 44 can with Help a screw or a pin that will be maintained in this way on the tread 12 voltage. This is maintained by the matching holes 50 of the mounting lugs 46, 48, through which a screw is inserted through for attachment to a spindle support.
- the inner end edge of the tread 12 is rounded in a circular arc, as shown at 56.
- the end edges of the flange portions 24, 26, designated 58, are also rounded to the same radius as the end edge 56. The meaning of this rounding will be explained below.
- step 60 If the crop is after Fig. 3 bent in the manner described results in a plan view and side view of a step 60 according to the FIGS. 4 and 5 , This results in the cross section of the step 60, a C-shaped profile. It can also be seen that the step 60 at the inner end of the tubular spindle support 62 of the spiral staircase after Fig. 2
- the fastening lugs 46, 48 are arranged overlapping each other, wherein the holes 50 are aligned with each other for receiving the screw bolt 64.
- the outer mounting lug 56 against the Spindle support 62 on.
- the rounded end edges 58 of the flange portions 24, 26 abut against the spindle support 64 as well Fig. 5 to recognize hinted.
- the rounded end edge 56 bears against the spindle support 62.
- the bolt 64 is located at the beginning of the upper third of the height of the step. It is therefore charged under stress of the discharging stage 60 substantially to train. The pressure load takes place in the lower region of the end region of the step 60.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Description
Die Erfindung bezieht sich auf eine Stufe für eine Treppe nach Anspruch 1 oder 2, eine Spindeltreppe nach Anspruch 5 und auf einen Zuschnitt für die Stufe für eine Spindeltreppe nach Anspruch 15.
Es ist bekannt, Stufen für Treppen aus Metall zu fertigen, beispielsweise aus relativ steifem Blech. Es ist außerdem bekannt, aus Blech bestehende Stufen über eine Schweißbefestigung an einer Haltekonstruktion zu befestigen. Die Haltekonstruktion kann von einem Gebäudeteil gebildet werden bzw. von Wangen, die am Gebäudeteil befestigt sind und die ihrerseits eine Befestigungsmöglichkeit für die Stufen bilden. Die Haltekonstruktion kann auch von einem Gestell oder dergleichen gebildet sein.The invention relates to a step for a staircase according to
It is known to make steps for stairs made of metal, for example, relatively stiff sheet metal. It is also known to attach steps made of sheet metal via a welding attachment to a support structure. The support structure may be formed by a part of the building or by cheeks, which are fastened to the building part and which in turn form a fastening possibility for the steps. The support structure may also be formed by a frame or the like.
Das Dokument
Der Erfindung liegt die Aufgabe zugrunde, eine Stufe für eine Treppe aus Blechmaterial zu schaffen, welche sich einfach und wenig aufwendig herstellen und montieren lässt.
Diese Aufgabe wird durch die Merkmale von Anspruch 1 oder 2 gelöst.
Bei der erfindungsgemäßen Stufe ist diese aus einem flachen Blechzuschnitt zu einem U- oder C-förmigen Profil gekantet. Ein derartiges Profil weist einen Trittflächenabschnitt auf mit einer vorderen und einer hinteren abgekanteten Seite und abgekanteten Endabschnitten. Die Seitenabschnitte oder die Endabschnitte weisen an den Enden Laschen auf, die gegen die Innen- oder Außenseite des benachbarten Endabschnitts oder Seitenabschnitts abbiegbar sind. Die Laschen und die Endabschnitte bzw. Seitenabschnitte weisen Löcher auf, die beim Abbiegen der Laschen jeweils übereinanderliegen für eine Schraubbefestigung an inneren und äußeren Haltemitteln für die Treppe. Erfindungswesentlich ist, dass die Trittfläche unter Zugspannung gesetzt ist, indem die Seitenabschnitte und/oder Endabschnitte um weniger als 90° abgekantet und durch nachträgliche Verformung auf etwa 90° abgebogen sind. Bei der Abkantung findet im Kantenbereich eine plastische Verformung statt. Die anschließende Verformung ist im Wesentlichen elastisch und daher geeignet, einen Spannenzustand aufzubauen. Die Laschen an den Seitenabschnitten oder Endabschnitten, die ihrerseits abgebogenen Laschen an den Seitenabschnitten oder Endabschnitten sind unter Spannung mit ihren Löchern zu den Löchern in den Endabschnitten bzw. Seitenabschnitten in Übereinstimmung gebracht und durch Schrauben in den ausgerichteten Löchern unter Spannung gehalten. Auf diese Weise können die Stufen eine höhere Belastung aufnehmen. Alternativ können bei der gleichen Belastung die Zuschnitte aus Blechmaterial dünner ausgeführt werden.The invention has for its object to provide a step for a staircase of sheet material, which can be easily and inexpensively manufacture and assemble.
This object is solved by the features of
In the stage according to the invention this is folded from a flat sheet metal blank to a U- or C-shaped profile. Such a profile has a tread portion with a front and a rear folded side and folded end portions. The side portions or the end portions have tabs at the ends which are bendable against the inside or outside of the adjacent end portion or side portion. The tabs and the end sections or side sections have holes that lie one above the other when bending the tabs for a screw fastening to inner and outer holding means for the stairs. Essential to the invention is that the tread is set under tension by the side portions and / or end portions folded by less than 90 ° and bent by subsequent deformation to about 90 ° are. When bending, a plastic deformation takes place in the edge area. The subsequent deformation is substantially elastic and therefore suitable for building up a clamping state. The tabs on the side portions or end portions, which in turn bent tabs on the side portions or end portions are brought under tension with their holes to the holes in the end portions or side sections in accordance and held by screws in the aligned holes under tension. In this way, the stages can take a higher load. Alternatively, at the same load, the blanks of sheet material may be made thinner.
Die Erfindung ist naturgemäß auch anwendbar auf Stufen für eine Wendeltreppe bzw. Spindeltreppe. Die Stufe ist aus einem flachen Blechzuschnitt zu einem im Querschnitt U- oder C-förmigen Profil geformt, das einen vorderen und einen hinteren von der trapezförmigen Trittfläche abgebogenen Seitenabschnitt, einen äußeren von der Trittfläche abgebogenen Endabschnitt und zwei von der Trittfläche abgebogene innere Endabschnitte aufweist, die von Laschen der Seitenabschnitte gebildet sind. Die inneren und äußeren Laschen und der äußere Endabschnitt weisen Löcher auf, wobei die Trittfläche in gleicher Weise unter Spannung gesetzt ist, wie dies in Verbindung mit Anspruch 1 erläutert ist.The invention is of course also applicable to steps for a spiral staircase or spiral staircase. The step is formed from a flat sheet metal blank into a U-shaped or C-shaped profile having front and rear side portions bent from the trapezoidal tread surface, an outer end portion bent from the tread surface and two inner end portions bent from the tread surface, which are formed by tabs of the side sections. The inner and outer flaps and the outer end portion have holes, the tread surface being similarly tensioned, as explained in connection with
Das auf diese Weise gebildete Profil der erfindungsgemäßen Stufe ist auch hohen Belastungen gewachsen und hat den Vorteil, dass der Blechzuschnitt relativ dünn sein kann, was den wirtschaftlichen Aufwand reduziert. Ein Verschweißen der erfindungsgemäßen Stufe ist nicht erforderlich, weil eine einfache Schraubbefestigung vorgesehen werden kann.The profile of the stage according to the invention formed in this way is also able to cope with high loads and has the advantage that the sheet metal blank can be relatively thin, which reduces the economic outlay. A welding of the stage according to the invention is not required, because a simple screw fastening can be provided.
Die erfindungsgemäße Stufe kann sowohl für gerade als auch für Wendeltreppen vorteilhaft eingesetzt werden. Bei geraden Treppen ist die Trittfläche vorzugsweise rechteckig. Bei Wendeltreppen kann die Trittfläche trapezförmig sein mit einer größeren Breite außen und einer kleineren Breite innen.The stage according to the invention can be advantageously used both for straight and spiral staircases. For straight stairs, the tread is preferably rectangular. In spiral staircases, the tread may be trapezoidal with a larger width outside and a smaller width inside.
Es versteht sich, dass Podest für die beschriebenen Treppen gleichermaßen erfindungsgemäß ausgeführt werden können, wenn sie ein gleiches oder ähnliches Profil aufweisen.It is understood that pedestal for the described stairs can equally be performed according to the invention, if they have the same or similar profile.
Als Material kommt vorzugsweise Aluminium oder Stahl, insbesondere Edelstahl in Betracht.The material is preferably aluminum or steel, in particular stainless steel into consideration.
Die Besonderheit bei einer Spindeltreppe ist, dass sie eine innere, mittige Spindelstütze aufweist, die z.B. von einem Rohr gebildet werden kann, um die herum ein wendelförmiges Geländer mit Handlauf geführt ist. Die Stufen befinden sich zwischen Spindelstütze und äußerem Geländer, wobei es von der Anordnung der Spindeltreppe abhängt, ob die Stufen an Pfosten des Geländers oder an einer Wange in Höhe der Stufen oder auf andere Weise befestigt werden. Die Erfindung bezieht sich auch auf eine Spindeltreppe und eine Stufe für diese, wie sie für freistehende Spindeltreppen verwendbar ist. Freistehende Spindeltreppen werden z.B. benötigt bei Windenergieanlagen. Es soll nach Möglichkeit vermieden werden, die außenliegenden Treppen an den Türmen anzubinden, damit die für die Türme eng ausgelegte Statik nicht beeinträchtigt wird. Erfindungsgemäß ist die Spindeltreppe mit Stufen versehen, wie sie in den Ansprüchen 1 und 2 gekennzeichnet sind. Die Stufen können innen abgekantete Flanschabschnitte aufweisen, die an die Seitenwandabschnitte bzw. Endabschnitte angeformt sind, um die Stabilität zu erhöhen. Die Schrauben, mit denen die gegeneinander verspannten Abschnitte der Stufe gehalten sind, können gleichzeitig die Schraubverbindung zur Befestigung der Stufe an den Haltemitteln dienen.The peculiarity of a spiral staircase is that it has an internal, central spindle support, e.g. can be formed by a tube around which a helical railing with handrail is guided. The steps are located between the spindle support and the outer railing, depending on the arrangement of the spiral staircase, whether the steps are fixed to posts of the railing or to a cheek at the level of the steps or otherwise. The invention also relates to a spiral staircase and a step for this, as it is usable for free-standing spiral staircases. Freestanding spiral staircases are used e.g. needed in wind turbines. It should be avoided if possible to tie the outside stairs to the towers, so that the statics tight for the towers is not affected. According to the invention, the spiral staircase is provided with steps as indicated in
Die erfindungsgemäßen Stufen können vorgefertigt zur Baustelle geliefert werden oder an der Baustelle endgültig geformt werden.The steps according to the invention can be delivered prefabricated to the construction site or finally formed at the construction site.
Das auf diese Weise gebildete Profil der erfindungsgemäßen Stufe ist gegenüber Biegekräften, wie sie bei Benutzung der Stufe auftreten, relativ fest. Dadurch kann ein verhältnismäßig dünner Blechzuschnitt für die Ausbildung der Stufe verwendet werden. Vorteilhaft ist ferner die Anbringung der Stufe mittels Schraubbefestigungen, wodurch ein Verschweißen überflüssig wird. Nach einer Ausgestaltung der Erfindung ist die Spindelstütze als Rohr mit Kreis- oder Vielkantquerschnitt gebildet. Vorzugsweise wird ein Kreisquerschnitt verwendet.The profile of the stage according to the invention formed in this way is relatively firm against bending forces as they occur when using the stage. As a result, a relatively thin sheet metal blank can be used for the formation of the stage. Also advantageous is the attachment of the stage by means of screw fasteners, whereby welding is superfluous. According to one embodiment of the invention, the spindle support is formed as a tube with circular or polygonal cross-section. Preferably, a circular cross section is used.
Die Stufen werden außen vorzugsweise mit zwei aufeinanderfolgenden Pfosten eines Geländers verschraubt, wodurch jeder einem Pfosten folgende weitere Pfosten mittels jeweils übereinanderliegenden Schraubbefestigungen mit benachbarten Stufen verbunden ist. Bis auf die unterste Stufe sind alle Stufen jeweils mit zwei Pfosten außen verschraubt, wobei der eine Pfosten auch die nächsthöhere bzw. nächsttiefere Stufe hält. Auf diese Weise übernimmt auch ein Pfosten der nächsten Stufe eine auf eine Stufe treffende Belastung.The steps are preferably bolted to the outside with two successive posts of a railing, whereby each post following a post is connected by means of superimposed screw fasteners with adjacent steps. Except for the lowest step, all steps are bolted to the outside with two posts, with one post also holding the next higher or next lower level. In this way, a post of the next level also takes on a one-step load.
Bei einem C-förmigen Querschnitt weisen die Seitenabschnitte nach innen gekantete Flanschabschnitte auf. Vorzugsweise liegt der äußere Endabschnitt gegen die Enden der Flanschabschnitte an. Dadurch wird eine Verformung dieses Endabschnitts nach innen begrenzt.In a C-shaped cross-section, the side portions have inwardly folded flange portions. Preferably, the outer end portion bears against the ends of the flange portions. This limits deformation of this end portion to the inside.
Nach einer weiteren Ausgestaltung der Erfindung ist die innere Endkante des Trittflächenabschnitts an die Kontur der Spindelstütze angepasst, z.B. gerundet, wenn die Stütze einen Kreisquerschnitt aufweist. Auch die Flanschabschnitte, falls sie vorgesehen sind, liegen vorzugsweise an der Spindelstütze an und haben ein der Kontur der Spindelstütze angepasste Form, beispielsweise sind sie ebenfalls gerundet.According to a further embodiment of the invention, the inner end edge of the tread portion is adapted to the contour of the spindle support, e.g. rounded if the column has a circular cross-section. The flange sections, if provided, preferably abut on the spindle support and have a shape adapted to the contour of the spindle support, for example, they are also rounded.
Um eine Sicherheit gegen das Aufbiegen der Stufe bei Belastung weiterhin entgegenzuwirken, sieht eine Ausgestaltung der Erfindung vor, dass eine Lasche an einem Befestigungsansatz vorgesehen ist, die gegen die Außenseite eines Seitenabschnitts gekantet wird. Alternativ kann vorgesehen werden, dass der außenliegende Befestigungsansatz durch Ausstanzung eine Zunge oder dergleichen aufweist, die in eine ausgerichtete Öffnung des anderen Befestigungsansatzes eingebogen wird.In order to continue to counteract a security against the bending of the step under load, an embodiment of the invention provides that a tab is provided on a fastening lug which bears against the outside of a side section is folded. Alternatively it can be provided that the outer attachment lug has by punching a tongue or the like, which is inflected into an aligned opening of the other attachment lug.
Bei der erfindungsgemäßen Spindeltreppe sind die Stufen im Wesentlichen über die Anbindung an die Spindelstütze gehalten. Die Stufen kragen somit von der Spindelstütze fort. Daher ist die Schraubbefestigung an der Spindelstütze ein wichtiges Konstruktionsmerkmal. Bezüglich der Schraubbefestigung sieht eine Ausgestaltung der Erfindung vor, dass die Schraubbefestigung an der Spindelstütze in der oberen Hälfte des Endabschnitts bzw. der Befestigungsansätze angeordnet ist. Vorzugsweise liegt die Schraubbefestigung am Anfang des oberen Drittels des Endabschnitts bzw. der Befestigungsabschnitte. Der für die Schraubbefestigung vorgesehene Bolzen wird auf Zug belastet, wenn eine Stufe belastet wird, während der untere Bereich des Endabschnitts der Stufe gegen die Spindelstütze gedrückt wird.In the spiral staircase according to the invention, the steps are held substantially via the connection to the spindle support. The steps thus collar away from the spindle support. Therefore, the screw attachment to the spindle support is an important design feature. With regard to the screw fastening, an embodiment of the invention provides that the screw fastening is arranged on the spindle support in the upper half of the end section or the fastening lugs. Preferably, the screw fastening is at the beginning of the upper third of the end portion or the fastening portions. The bolt provided for the screw fastening is subjected to tension when a step is loaded while the lower portion of the end portion of the step is pressed against the spindle support.
Die erfindungsgemäße Stufe kann für die verschiedensten Einsätze von Spindeltreppen verwendet werden. Die Stufe wird aus einem flachen Blechzuschnitt durch Abkantung vorgeformt und anschließend fertiggeformt durch Abbiegen auf etwa der End- und/oder Seitenabschnitte auf 90°, um die Spannung an der Trittfläche zu erzeugen. Dies kann geschehen, bevor sie zur Baustelle gebracht wird. Alternativ kann das Fertigformen an der Baustelle erfolgen. An der Baustelle ist lediglich erforderlich, die Stufe mit Hilfe von Schrauben in der oben beschriebenen Art und Weise zu befestigen. Aufwendige Schweißarbeiten entfallen. Insbesondere besteht beim Verschweißen von Blechteilen sehr leicht die Gefahr des Verziehens, wodurch möglicherweise die Sicherheit für die Spindeltreppe nicht mehr gewährleistet ist.The stage of the invention can be used for a variety of uses of spiral staircases. The step is preformed from a flat sheet metal blank by bending and then finish formed by turning on about the end and / or side sections to 90 ° to create the tension on the tread. This can be done before it is brought to the construction site. Alternatively, the final molding can be done at the construction site. At the construction site, it is only necessary to fasten the step by means of screws in the manner described above. Elaborate welding accounts. In particular, when welding sheet metal parts very easily the risk of warping, which may not be guaranteed the security of the spiral staircase.
Die Erfindung soll nachfolgend anhand von Zeichnungen näher erläutert werden.
- Fig. 1
- zeigt die Draufsicht auf einen Zuschnitt aus Blechmaterial für eine erfindungsgemäße Stufe.
- Fig. 2
- zeigt perspektivisch einen kleinen Ausschnitt aus einer erfindungsgemäßen Spindeltreppe.
- Fig. 3
- zeigt die Draufsicht auf einen Zuschnitt aus Blechmaterial für die erfindungsgemäße Stufe.
- Fig. 4
- zeigt eine erfindungsgemäße Stufe, die aus dem Blechzuschnitt nach
Fig. 3 gekantet ist und die innen an einer rohrförmigen Spindelstütze und außen an Pfosten eines Geländers befestigt ist. - Fig. 5
- zeigt die Seitenansicht der Stufe nach
Fig. 4 . - Fig. 6
- zeigt vergrößert die Anbringung der Stufe an einer Spindelstütze gemäß
Fig. 4 .
- Fig. 1
- shows the top view of a blank of sheet material for a stage according to the invention.
- Fig. 2
- shows in perspective a small section of a spiral staircase according to the invention.
- Fig. 3
- shows the top view of a blank of sheet material for the stage according to the invention.
- Fig. 4
- shows a stage according to the invention, from the sheet metal blank after
Fig. 3 folded and the inside of a tubular spindle support and outside is attached to posts of a railing. - Fig. 5
- shows the side view of the step
Fig. 4 , - Fig. 6
- shows enlarged the attachment of the step to a spindle support according to
Fig. 4 ,
In
Da die endgültige Abbiegung der Seitenabschnitte 104, 106 um einen Winkel von annähernd 90° gegenüber der Trittfläche 102 unter Aufbringen einer Biegekraft erfolgt, wird auf die Trittfläche 102 eine Spannung in Querrichtung zur Trittfläche 102 erzeugt, die durch die Schrauben, die durch die Löcher 128, 130 gesteckt sind, aufrecht erhalten wird. Auf diese Weise wird die Tragfähigkeit der mit dem Zuschnitt nach
In
Wie man aus
Zwischen den Pfosten 70, 71 sind Bleche 73 nahe den Stufen 60 angeordnet. Sie dienen der Sicherheit. Sie sollen verhindern, dass der Benutzer mit dem Fuß nach außen tritt oder rutscht.Between the
An die Trittfläche 12 schließen sich Seitenabschnitte 16, 18 an, die um Linien 20 bzw. 22 gegenüber der Trittfläche abgekantet werden. Die Linien 20, 22 sind lediglich geometrisch. Eine Bearbeitung des Zuschnitts 10 ist für die Abkantung nicht erforderlich. An die Seitenabschnitte 16, 18 schließen sich schmale Flanschabschnitte 24, 26 an, die über Kantlinien 28, 30 gegenüber den Seitenabschnitten 16, 18 abgekantet werden. Die Seitenabschnitte 16, 18 sind ebenfalls leicht trapezförmig, wobei jedoch eine Verschmälerung zum äußeren Ende vorgesehen ist.
An das äußere Ende des Trittflächenabschnitts 12 schließt sich ein äußerer Endabschnitt 32 an, der gegenüber der Trittfläche 12 über eine Kantlinie 34 um etwa 90° gegenüber der Trittfläche 12 abbiegbar ist. An den Endabschnitt 32 schließt sich ein Flanschabschnitt 36 an, der um annähernd 90° gegenüber dem Endabschnitt 32 abkantbar ist. Der Endabschnitt 32 weist Löcher 33 auf.At the outer end of the
In Verlängerung der Seitenabschnitte 16, 18 sind Laschen 40, 42 vorgesehen, die jeweils mit einem Loch 44 versehen sind.In extension of the
In Verlängerung des inneren Endes der Seitenabschnitte 16, 18 sind laschenförmige Befestigungsansätze 46, 48 vorgesehen, die um eine Kantlinie 50 bzw. 52 gegenüber den Seitenabschnitten 16, 18 um annähernd 90° abkantbar sind. Wie in
Bei der Verformung des Zuschnitts 10 nach
Die innere Endkante der Trittfläche 12 ist kreisbogenförmig gerundet, wie bei 56 dargestellt. Die Endkanten der Flanschabschnitte 24, 26, die mit 58 bezeichnet sind, sind ebenfalls mit dem gleichen Radius wie die Endkante 56 gerundet. Der Sinn dieser Rundung wird weiter unten noch erläutert.The inner end edge of the
Wird der Zuschnitt nach
Die Lasche 54 (
Die Anbringung des rechten Endes der Stufe 60 an den Pfosten 65 der Spindeltreppe nach
In Fig. 7 ist die Anbringung der Stufe 60 an der rohrförmigen Spindelstütze 62 näher dargestellt. Der Schraubenbolzen 64 weist einen Kopf 76 auf, der außen an der Spindelstütze anliegt. Der Schraubenbolzen 64 erstreckt sich durch entsprechende Löcher in der Spindelstütze 62 und durch die Löcher 50 in den Befestigungsansätzen 46, 48 in das Innere der Stufe 60. Auf den Gewindeabschnitt des Schraubenbolzens 64 ist eine Mutter 78 geschraubt, wobei zwischen Mutter 78 und den einander überlappenden Befestigungsansätzen 46, 48 eine dicke Widerlagescheibe 80 angeordnet ist. Der Schraubenbolzen 64 ist von einer Stützhülse 82 umgeben, die sich am rechten Ende gegen die innere Wandung der Spindelstütze 62 abstützt und mit ihrem rechten Ende durch das entsprechende Loch in der Wandung der Spindelstütze 62 hindurcherstreckt in Anlage gegen einen Flansch 84 des Bolzenkopfes 76. Wird der Schraubenbolzen angezogen, wird die Stufe 60 mit großer Kraft gegen die zugekehrte Wandung der Spindelstütze 62 angezogen. Die Stützhülse 62 verhindert jedoch eine Verformung der Spindelstütze. Da bei einer Spindeltreppe eine Reihe von Stufen vorgesehen ist, die in relativ geringem Abstand in der beschriebenen Art und Weise an der Spindelstütze 62 befestigt werden, bilden die jeweiligen Stützenhülsen eine wirksame innere Abstützung der Spindelstütze gegenüber die äußere Belastung. Dies hat zur Folge, dass die Wandung der Spindelstütze 62 relativ dünn und im Durchmesser klein ausgelegt werden kann, was den Materialeinsatz für die Spindeltreppe beträchtlich reduziert.In Fig. 7, the attachment of the
Wie sich aus
Claims (15)
- A step for a stairway, wherein the step is shaped into a U- or C-shaped profile made of a flat sheet metal blank (100) made of sheet metal material with a walking surface section (102), a front and a rear bent side section (104, 106) and bent end sections (120, 122), wherein the end sections (120, 122) or respectively side sections (104, 106) have holes (130) for a screw fastening on inner and outer holding means for a stairway, characterized in that the side sections (104, 106) and/or the end sections (120, 122) have buttstraps (112-118) on the ends, which are bendable against the inside or outside of the adjacent end section or side section and the buttstraps (112-118) have holes (128) for a screw fastening on inner and outer holding means for a stairway, wherein the walking surface is tensioned in that the side sections and/or end sections are beveled by less than 90° and are bent to approximately 90° by subsequent elastic deformation and the in turn bent buttstraps on the side sections or end sections are brought into conformity tensioned with their holes (128) to the holes (130) in the end sections or respectively side sections and are held tensioned in the aligned holes with screws.
- A step for a spiral staircase, in particular a newel staircase, characterized in that the step (60) made of a flat sheet metal blank is shaped into a U- or C-shaped profile in cross-section, which has a front and a rear side section (16, 18) bent away from the trapezoidal walking surface (12), an outer end section (32) bent away from the walking surface and two inner end sections bent away from the walking surface, which are formed by inner buttstraps (46, 48) of the side sections, wherein the front and rear side sections (16, 18) each have an outer buttstrap (40, 42), wherein the inner and outer buttstraps (46, 48; 40, 42) and the outer end section (32) have holes (50; 44; 33), wherein the walking surface is tensioned in that the side sections and/or the end sections are beveled by less than 90° and are subsequently bent to approximately 90° and the in turn bent buttstraps (46, 48; 40, 42) on the side sections or end sections are brought into conformity tensioned with their holes to the holes in the end sections or respectively side sections and are held tensioned in the aligned holes with screws.
- The step according to claim 1 or 2, characterized in that the screws simultaneously serve to fasten the step on inner and/or outer holding means.
- The step according to claim 1, characterized in that the side sections (104, 106) and/or end sections (120, 122) have inward-beveled flange sections (108, 110) or respectively (124, 126).
- A stairway, which has a central spiral support and an outer, helical guardrail with a post bearing a handrail, wherein the steps are fastened on the inside on the spiral support and on the outside on a holding means, characterized in that the step (60) is shaped into a U- or C-shaped profile made of a flat sheet metal blank (10), which has bent front and rear side sections and two separated inner end sections and an outer bent end section, wherein the steps are formed according to the claims 2 to 4.
- The stairway according to claim 5, characterized in that the overlapping buttstraps (46, 48) are fastened on the inner end of the side sections by means of a stud bolt (64) passing through the spiral support (62) and the aligned holes (50) of the buttstrap.
- The stairway according to claim 6, characterized in that the spiral support (62) is a tube with a circular or a multi-edged cross-section.
- The stairway according to one of claims 5 to 7, characterized in that the inner edge (56) of the walking surface section (12) is adjusted to the contour of the spiral support (62).
- The stairway according to one of claims 5 to 8, characterized inward-edged flange sections of the side sections (16, 18) have on the inner end an edge, which is adjusted to the contour of the spiral support (62).
- The stairway according to claim 8 or 9, characterized in that the inner edge of the walking surface section (12) and/or the inner edge of the beveled flange sections are rounded and rest against the rounding of a circular spiral tube.
- The stairway according to one of claim 5 to 10, characterized in that one of the inner buttstraps (46) has an appendage (54), which is edged against the outside of a side section (18).
- The stairway according to one of claims 5 to 11, characterized in that a relatively rigid plate (80) rests against the inner side of the inner-lying inner buttstrap (48), which forms a counter bearing for a nut (78) screwed on the stud bolt or the head of the stud bolt.
- The stairway according to one of claims 5 to 12, characterized in that the screw fastening on the spiral support (62) is arranged in the upper half of the end section or respectively the fastening appendages (46, 48).
- The stairway according to claim 13, characterized in that the screw fastening is arranged at the start of the upper third of the end section or respectively of the fastening appendages (46, 48).
- A blank made of sheet metal material for a step of a spiral staircase with- a trapezoidal walking surface section (12) continuously widening from inside to outside with an inner end edge (56)- bevelable, preferably trapezoidal side sections (16, 18) bordering both sides of the walking surface section (12)- respectively one buttstrap (40, 42) on the outer end of the side sections (16, 18) with a hole (44)- respectively one bevelable buttstrap-shaped fastening appendage (46, 48) on the inner end of the side sections (16, 18) with a hole (50)- an outer, bevelable end section (32) as a lengthening of the walking surface section (12) with holes (33), wherein- the holes (44; 33) in the buttstraps (40, 42) as well in the outer end section (32) are arranged such that they can be aligned with each other in the case of a deformation of the blank into a U-shaped profile with buttstraps (40, 42) bent towards the side sections, and the holes (50) in the buttstrap-shaped fastening appendages (46, 48) are arranged such that they can be aligned with each other in the case of a deformation of the blank into a U-shaped profile.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202016101029.2U DE202016101029U1 (en) | 2016-02-26 | 2016-02-26 | Step by step and spiral staircase |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3211153A1 EP3211153A1 (en) | 2017-08-30 |
EP3211153B1 true EP3211153B1 (en) | 2019-01-09 |
Family
ID=56072254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16170820.1A Not-in-force EP3211153B1 (en) | 2016-02-26 | 2016-05-23 | Step for stairway and spiral staircase |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3211153B1 (en) |
DE (1) | DE202016101029U1 (en) |
DK (1) | DK3211153T3 (en) |
ES (1) | ES2719526T3 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0734095Y2 (en) * | 1992-12-21 | 1995-08-02 | 株式会社園田製作所 | Stairs stairs |
US6318033B1 (en) * | 1999-05-13 | 2001-11-20 | Tread Ex, Inc. | Staircase, staircase repair device and methods of fabricating same |
DE20214211U1 (en) * | 2002-09-13 | 2003-01-16 | Graepel-STUV GmbH, 39615 Seehausen | Metallic step used in commercial areas, industrial plants, stairs, walkways and buildings comprises a surface and lateral edges rolled at the end |
EP2227599B1 (en) * | 2007-12-09 | 2017-08-02 | Saferack, LLC | A gangway and method for manufacturing same |
DE102013004743A1 (en) * | 2013-03-18 | 2014-09-18 | Werner Scholpp | Stair step made of metal |
-
2016
- 2016-02-26 DE DE202016101029.2U patent/DE202016101029U1/en active Active
- 2016-05-23 ES ES16170820T patent/ES2719526T3/en active Active
- 2016-05-23 EP EP16170820.1A patent/EP3211153B1/en not_active Not-in-force
- 2016-05-23 DK DK16170820.1T patent/DK3211153T3/en active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
DE202016101029U1 (en) | 2017-06-26 |
ES2719526T3 (en) | 2019-07-11 |
DK3211153T3 (en) | 2019-04-23 |
EP3211153A1 (en) | 2017-08-30 |
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