Scaffolding tube of scaffolding, and scaffolding element.
Abstract
The invention relates to a scaffolding pipe (10) of a structural scaffolding system having a pipe axis (A), which extends from a first end of the axial pipe (12) to a second opposite end of the axial pipe (14), a receiving portion (16) that is provided on the first end of the axial pipe (12) and an insert portion (18) that is provided on the second end of the axial pipe (14), and which has a reduced cross section, in comparison with the receiving portion (16) and ends with a radial shoulder (22) that forms a support face (24) that is directed towards the insertion portion (18), the inner diameter (d1, i) of the receiving portion (16), larger than the outside diameter (d2, a) of the insertion portion (18), such that an adjacent scaffold pipe (10) having an identical insertion portion (18), can be inserted into the receiving portion (16). The receiving portion (16) at the first end of the axial pipe (12) has precisely a positioning groove (26) that is interrupted or continuous in a peripheral direction and, which reduces the inner diameter (d1, i) of the receiving portion (16) and which defines the minimum inner diameter (d1, i, min) of the receiving portion (16). Alternatively or in addition, a pipe wall (34) of the scaffolding pipe (10) has at the first end of the axial pipe (12), a maximum wall thickness (Smax) and, on the other hand, a thickness smaller wall (s).

Term
7.8 yearsleft in the term
Expires 22 July 2034.
- Priority
- Filed
- Granted
- Today
- Expires
16 claims: 8 independent, 8 dependent
- 1Tubería de andamios de un sistema estructural de andamios, que tiene:un eje de tubería A, el cual se extiende desde un primer extremo de la tubería axial a un segundo extremo de tubería opuesto, una porción receptora, la cual está provista sobre el primer extremo axial de la tubería, y una porción de inserción, la cual está provista sobre el segundo extremo de la tubería axial, y la cual tiene una sección transversal reducida, en comparación con la porción receptora y termina con un hombro radial que forma una cara de soporte anular que está dirigida hacia la porción de inserción, siendo el diámetro interior di,i de la porción receptora mayor que el diámetro exterior d 2 , a de la porción de inserción, de modo tal que la tubería adyacente de andamios que tiene una porción de inserción idéntica pueda ser insertada en la porción receptora, caracterizada porque la tubería de andamios es producida en un trozo y una pared de tubería de la tubería de andamios tiene un primer extremo de la tubería axial, un grosor máximo de pared S max y, por otra parte, un grosor de pared más pequeño s.
- 2La tubería de andamios de conformidad con la reivindicación 1, caracterizada porque lo siguiente se aplica al grosor máximo de pared S max en el primer extremo axial de la tubería:1.2*s S max f 2*s, en particular S max ~ 1.5*s.
- 3La tubería de andamios de conformidad con la reivindicación 1 o reivindicación 2, caracterizada porque un diámetro exterior di, a de la tubería de andamios en el primer extremo axial de la tubería, corresponde de manera substancial a un diámetro exterior di, a de la porción receptora.
- 4La tubería de andamios de conformidad con cualquiera de las reivindicaciones anteriores, caracterizada porque la tubería de andamios tiene en el primer extremo axial de la tubería, una porción engrosada en la cual la pared de la tubería está engrosada en una forma substancialmente como cuña, desde el grosor de pared más pequeño s al grosor de pared máximo S max .
- 5La tubería de andamios de conformidad con la reivindicación 4, caracterizada porque la porción engrosada tiene una dimensión axial L A , en donde:s < L A < 5*s, en particular L A « 2.5*s.
- 6La tubería de andamios de conformidad con cualquiera de la reivindicaciones anteriores, caracterizada porque la porción receptora en el primer extremo de la tubería axial tiene precisamente una ranura de posicionamiento que es interrumpida o continua en una dirección periférica y, la cual reduce el diámetro interior di,i de la porción receptora y define el diámetro mínimo interior di,i, m i n de la porción receptora.
- 7La tubería de andamios de conformidad con la reivindicación 6, caracterizada porque la porción de inserción tiene desde el segundo extremo de la tubería axial al hombro radial, una longitud de inserción axial L E , un espacio axial Xp de la ranura de posicionamiento desde el primer extremo de la tubería axial siendo más pequeño que un tercero, en particular más pequeño que un quinto, de la longitud de inserción axial L E .
- 8La tubería de andamios de conformidad con la reivindicación 6 o reivindicación 7, caracterizada porque un espacio axial Xp de la ranura de posicionamiento desde el primer extremo de la tubería axial, es más pequeño que el diámetro interior di,i de la porción receptora.
- 9La tubería de andamios de conformidad con cualquiera de las reivindicaciones 6 a 8, caracterizada porque la porción receptora tiene una ranura, la cual es interrumpida o continua en una dirección periférica, teniendo esta ranura, un espacio axial más grande X N con respecto al primer extremo de la tubería axial que la ranura de posicionamiento y que define un diámetro interior di,i,N, al cual se aplica lo siguiente:di,i, m i n < di, i(N < di zi .
- 10La tubería de andamios de conformidad con la reivindicación 9, caracterizada porque la porción de inserción, desde el segundo extremo de la tubería axial al hombro radial, tiene una longitud de inserción axial L E , aplicando lo siguiente a un espacio axial X N de la ranura con respecto al primer extremo de la tubería axial:0.5*L E < X N < L e , en particular X N ® 0.8*L E .
- 11La tubería de andamios de conformidad con cualquiera de las reivindicaciones anteriores, caracterizada porque la tubería de andamios tiene, entre la porción receptora y la porción de inserción, una región intermedia en la cual la tubería de andamios, preferiblemente tiene el mismo diámetro exterior di, a que en la porción receptora.
- 12La tubería de andamios de cofnormidad con la reivindicación 11, caracterizada porque la región intermedia tiene adyacente al hombro radial, una porción de expansión, en la cual la tubería de andamios se expande en forma radial hacia el hombro radial.
- 13La tubería de andamios de conformidad con cualquiera de las reivindicaciones anteriores, caracterizada porque la cara de soporte anular tiene un diámetro exterior d 3 , a que es más grande que el diámetro exterior d 1/a de la porción receptora.
- 14La tubería de andamios de conformidad con cualquiera de las reivindicaciones anteriores, caracterizada porque la porción de inserción adyacente al hombro radial tiene una contracción que se extiende en la dirección periférica, de modo tal que la cara de soporte caracterizada porque la porción de inserción se ahusa hacia el segundo extremo de la tubería axial y forma una porción de introducción ahusada.
- 1516. La tubería de andamios de conformidad con cualquiera de las reivindicaciones anteriores, caracterizada porque la tubería de andamios es parte de un sistema operacional de andamios y, el grosor de pared s de la tubería de andamios es un máximo de 3.2 mm, en particular, aproximadamente 2.7 mm, o es parte de un sistema de andamios con soporte de carga y el grosor de cualquiera de las reivindicaciones anteriores y un portador transversal que está ajustado en forma segura a la tubería de andamios, estando el portador transversal preferiblemente dispuesto en forma perpendicular en relación con la tubería de andamios en la porción receptora o, sobre una región intermedia de la tubería de andamios.
- 1618. El elemento de andamios de conformidad con la reivindicación 17, caracterizado porque se proveen dos 5 tuberías de andamios de conformidad con cualquiera de las reivindicaciones 1 a 16, las cuales están conectadas una con la otra por medio del, por lo menos, un portador transversal, de modo tal de formar un elemento de marco del sistema estructural de andamios.
Independent claims16
118 paragraphs in 6 sections, as filed
DIVISIONAL SUB-DIRECTOR OF PATENT FUND EXAMINATION OF MECHANICAL, ELECTRICAL AND INDUSTRIAL DESIGNS AND USEFUL MODELS
<img file="MX367448B_D0001.tif" />
PEDRO DAVID FRAGOSO LÓPEZ
Original string:
PEDRO DAVID FRAGOSO LQPEZ | 00001000000405457619 | Administration Service
Tax | 1052 || MX / 2019/73073 | MX / a / 2016/001214 | PCT patent title | 1220 | RRGO | Page (s) | AIM2DUk1 kKcm2PNNbR3VAvwOL74 =
Digital stamp:
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PIPE OF AHDAMIOS OF A STRUCTURAL SYSTEM OF ANDAMIOS AND ELEMENTO DE ANDAMIOS
FIELD OF THE INVENTION
The invention relates to a scaffolding pipe of a structural scaffolding system having a pipe shaft extending from a first end of the axial pipe to a second opposite end of the axial pipe, a receiving portion that is provided on the first end of the axial pipe and an insertion portion that is provided on the second end of the axial pipe and which has a reduced cross section compared to the receiving portion and, It ends with a radial shoulder that forms an annular support face that is directed towards the insertion portion, the inner diameter of the receiving portion being greater than the outer diameter of the insertion portion, such that an adjacent scaffold pipe which has an identical insertion portion, can be inserted into the receiving portion. Moreover, the invention also relates to a scaffolding element having such scaffolding pipe.
BACKGROUND OF THE INVENTION
Structural scaffolding systems are constructed, for example, as operational scaffolding systems or scaffolding load support systems. Scaffolding pipes are conventionally used in frame elements of a scaffolding structural system, in particular in scaffolding operational systems, and as individual posts when scaffolding load support systems are constructed. In frame scaffolding systems, two parallel scaffolding pipes are connected to at least one transverse carrier, particularly welded. The frame elements then adjust with each other, so that the extreme heights of the scaffolding can be produced. However, scaffolding pipes are also constructed as individual rods. The principle of such structural scaffolding systems is substantially always the same. At an axial end of the scaffolding pipe, it has a reduced cross section that forms the so-called insertion portion. On the opposite side, the receiving portion, the insertion portion of the adjacent scaffold pipe can then be inserted, or vice versa. The insertion portion and the receiving portion have radial play with respect to one another, in order to facilitate insertion. However, this radial clearance is disadvantageous with respect to the stability of the scaffolding system, because the upper scaffold pipe can be easily tilted relative to the lower scaffold pipe. In order to reduce the maximum angle of inclination, it is known that it provides the complete receiving portion with axial longitudinal grooves that are formed by means of plastic deformation and which are peripherally separated from each other. Therefore, the radial play is reduced. However, this advantage comes at the expense of the disadvantage that the insertion of the scaffolding pipes from one into the other is no longer as easily possible and the pipes get stuck or lean more easily during the construction or disassembly of the scaffolding, in particular when one scaffolding pipe of one frame element is inserted significantly before the other scaffolding pipe of the frame element.
BRIEF DESCRIPTION OF THE INVENTION
Therefore, the objective of the invention is to provide a scaffolding pipe that allows the rapid and simple construction and disassembly of a structural scaffolding system with a high degree of scaffold stability.
This objective is achieved in accordance with the invention by a scaffolding pipe of the type mentioned in the introduction, a pipe wall of the scaffolding pipe having at the first end of the axial pipe, a maximum wall thickness S<sub>max</sub> and on the other hand, that is, in all other areas, a smaller wall thickness s. This radially expanded thickened pipe wall at the first end of the axial pipe increases the contact face between the front side of the scaffold pipe, whose side is formed by the thickened portion, and the adjacent support face on the radial shoulder of an additional scaffolding pipe inserted. In this case, the contact face also forms, in the case of a relative displacement of the pipes that are inserted into each other, a wide annular face that is continuous in a peripheral direction. Consequently, in the case of a material requirement that is only increased by a minimum amount, a more uniform pressure distribution and lower surface pressures occur at the first end of the axial pipe.
On the other hand, the front face of the receiving portion can be displaced in relation to the radial shoulder support face in the foregoing matter, such that the contact face is reduced, whereby the pipes on the front side are attached at higher loads and, consequently, have a lower load bearing capacity and can be plastically deformed more easily.
In a preferred method, the thickness of the pipe wall at the first end of the axial pipe is carried out by means of an annoying deformation of the scaffolding pipe, which leads to a plastic expansion of the pipe wall in a radial direction
Preferably, the following applies to the maximum wall thickness S<sub>max</sub> at the first end of the axial pipe: 1.2 * s <S<sub>max</sub> <2 * s, in particular S<sub>max</sub> "1.5 * s, where s designates the substantially constant wall thickness of the scaffold pipe outside the thickness of the pipe wall at the first end of the axial pipe. In a particularly preferred manner, an outer diameter of the scaffolding pipe at the first axial end corresponds substantially to the outer diameter of the receiving portion. In other words, this means that the first end of the axial pipe expands radially inward, while a radial outer side of the scaffold pipe in the region of the first end of the axial pipe, remains substantially cylindrical, in particular circular -cylindrical. Therefore, the thickened pipe wall not only provides a large front face, but also ensures contact that is as extensive as possible, between this front face and the support face of the inserted scaffolding pipe.
At the first end of the axial pipe of the scaffolding pipe, a thickened portion is preferably provided, in which the wall of the pipe is thickened substantially as a wedge from the smallest wall thickness s, to the maximum thickness of wall S<sub>ma</sub>x
In particular, the thickened portion may have an axial dimension L<sub>TO</sub>, where: s <L<sub>TO</sub> <5 * s, in particular L<sub>TO</sub> 2.5 * s, where s again designates the substantially constant wall thickness of the scaffold pipe outside the thickened portion of the pipe wall, at the first end of the axial pipe.
The aforementioned objective is also achieved in accordance with the invention by a scaffolding pipe of the type mentioned in the introduction, in which the receiving portion at the first end of the axial pipe has precisely a positioning groove that is interrupted or continuous in a peripheral direction and, which reduces the inner diameter di, i of the receiving portion and defines the minimum inner diameter di, i,<sub>m</sub>i<sub>n</sub> of the receiving portion.
The invention provides an excellent compromise between the small radial clearance and the simple insertion of adjacent scaffolding pipes, one inside the other. Due to the positioning groove formed, the receiving portion has at the first end of the axial pipe, a minimum inside diameter, which significantly reduces the radial clearance with respect to conventional shapeless scaffolding pipes. However, the receiving portion again has, axially current under the positioning groove toward the radial shoulder, an inner diameter that increases with respect to the minimum inner diameter, such that the scaffold pipe to be inserted, can still be tilted to a significant degree after the tip of the insertion portion has just left the region of the positioning groove. Because scaffolding pipes that are intended to be inserted into each other at the beginning of the insertion operation can be inclined with respect to the other in a very simple way and to a significant degree, the undesirable clogging or inclination of the pipes of scaffolding, it is substantially impossible. However, the deeper the tip of the insertion portion, that is, the second end of the axial pipe, penetrates the receiving portion, the larger the space that is also between the two faces of the contact point that is produce, that is, on the one hand, the face of the point of contact between the tip of the insertion portion and the inner side of the receiving portion and, on the other hand, the face of the contact point between the positioning groove and the adjacent region of the insertion portion. As the axial space between the faces of the contact point increases, the angle of inclination allowed by the radial play at the tip of the insertion portion becomes smaller and smaller.
Because the radial positioning of the inserted scaffolding pipe is simply carried out by means of a single positioning groove, the radial clearance, that is, an opening between the outer diameter of the insertion portion and the minimum inner diameter of the receiving portion defined by the positioning groove can be reduced with respect to conventional structural scaffolding systems, without the complexity of the assembly or disassembly of the structural system of scaffolding, which is increasingly significant. This is because precisely the positioning groove first allows a significant degree of inclination when two scaffolding pipes are inserted into each other, in order to ensure the cozy construction of the assembly and disassembly of the scaffolding structural system, even with Little radial play. In the assembled state of the scaffolding pipes, the small radial clearance then acts advantageously on the stability and load bearing capacity of the scaffolding structural system.
In one embodiment of the scaffolding pipe, the insertion portion has from the second end of the axial pipe to the radial shoulder, an axial insertion length, an axial space of the positioning groove from the first end of the axial pipe which is less than a third, in particular, smaller than a fifth, of the axial insertion length.
Moreover, the axial space of the positioning groove from the first end of the axial pipe can also be smaller than the inside diameter of the receiving portion. Due to the axial arrangement of the positioning groove very close to the first end of the axial pipe, at the beginning of the insertion operation, the inclination of the scaffolding pipes is easily possible for simple assembly or disassembly. At the same time, in the together-joined state, the scaffolding pipes are fixed with each other with little radial play, as a result of the proximity of the positioning groove with respect to the first end of the axial pipe, and consequently to the support face of the scaffolding pipe. This adjustment with little play near the support face leads to high axial load bearing capacity and stability of the scaffold pipe connection.
In another embodiment of the scaffolding pipe, the receiving portion has a groove that is interrupted or continuous in a peripheral direction, this groove having a larger axial space with respect to the first end of the axial pipe than the positioning groove and defining a inner diameter d<sub>1 (i</sub>,<sub>N</sub> to which the following applies: say, i,<sub>m</sub>i<sub>n</sub> <say, i,<sub>N</sub> <say, i. Because of this groove that is provided in addition to the positioning groove, at the end of the insertion operation of two scaffolding pipes, specifically when the tip of the insertion portion of a scaffold pipe, reaches the groove in the receiving portion of the other scaffolding pipe, a possible angle of inclination of the two scaffolding pipes in relation to one another, is reduced. This increases the stability and load bearing capacity of the scaffolding assembled structural system, however, it has hardly any effect on the ease of assembly during the construction or disassembly of the scaffolding structural system, because the reduction of the angle of inclination It is only evident at the end of the insertion operation and in the inserted state. It should be emphasized that the insertion portion of the scaffolding pipe inserted in the region of the positioning groove has a smaller radial clearance than in the optional groove additionally provided.
The insertion portion of the scaffolding pipe has, in this case, from the second end of the axial pipe to the radial shoulder, an axial insertion length L<sub>AND</sub>, applying the following, preferably to an axial space X<sub>N</sub> of the groove with respect to the first end of the axial pipe: 0.5 * L<sub>AND</sub> <X<sub>n</sub> <L<sub>AND</sub>in particular X<sub>N</sub> * 0.8 * L<sub>AND</sub>. The reduction of the angle of inclination, therefore, is carried out only at the end of the insertion operation, so that the easy-to-assemble construction of the scaffolding structural system is strongly influenced. Moreover, the longest possible axial space between the positioning groove and the additional groove is particularly advantageous with respect to the greatest possible reduction of the angle of inclination.
<td></td><td>In other</td><td>modality</td><td>, the</td><td>pipeline</td><td>from</td><td>scaffolding has</td>
<td>between</td><td>Serving</td><td>receiver</td><td>and the</td><td>portion</td><td>from</td><td>insertion</td>
<td>region</td><td colspan="2">intermediate in the</td><td>which one</td><td colspan="3">scaffolding pipe</td>
preferably it has the same outside diameter di,<sub>to</sub> and the same way as in the receiving portion. This intermediate region is used for the longitudinal construction of the scaffolding pipe. While the receiving portion has the same axial length as the insertion portion, the required axial length of the scaffolding pipe can be achieved through the intermediate region.
The intermediate region may have adjacent to the axial shoulder, in particular an expansion portion, in which the scaffolding pipe expands radially towards the radial shoulder. An enlarged support face is then produced on the radial shoulder of the scaffolding pipe, therefore it is ensured that the front face in the first axial pipe of the adjusted scaffolding pipe is always completely with a load support.
In particular, the annular support face of the scaffolding pipe can have an outer diameter d3,<sub>to </sub>which is larger than the outer diameter di,<sub>to</sub> of the receiving portion.
In another embodiment of the scaffolding pipe, the insertion portion adjacent to the radial shoulder has a contraction that extends in the peripheral direction, such that the annular support face has an inner diameter ds, which is smaller than the outer diameter d2, a of the insertion portion.
Preferably, the insertion portion tapers towards the second axial end of the scaffold pipe and forms a tapered insertion portion. This tapered insertion portion is produced, for example, by deformation of the plastic tubing and facilitates the insertion of the insertion portion into the receiving portion of an additional scaffold tubing, because the region of the insertion portion to be introduced, that is, the second end of the axial pipe, forms a type of tip.
The wall thickness of the scaffolding pipe is preferably a maximum of 3.2 mm with an operational scaffolding system, in particular 2.7 mm. This is a particularly small wall thickness for a scaffolding pipe, which accordingly has an advantageous effect on the weight of this. The small wall thickness can occur due to the stability of the foot pipe or the scaffolding structural system is secured by means of the positioning groove and / or the thickened pipe wall at the first end of the axial pipe of the scaffolding pipe. Due to the smaller wall thickness of the scaffolding pipe, the weight is maintained, which in turn facilitates the construction and disassembly of the scaffolding structural system. The same also applies to load bearing scaffolding systems, which currently have conventional wall thicknesses of at least 3.2 mm. This wall thickness can be reduced in particular to approximately 2.9 mm, or alternatively they remain unchanged, whereby the capacity of the scaffold load support is significantly increased.
The invention further comprises a scaffolding element comprising at least one aforementioned scaffolding pipe and a transverse carrier that is securely fitted to the scaffolding pipe, the transverse carrier being preferably arranged and secured perpendicularly relative to the scaffolding pipe over the receiving portion or, in an intermediate region of the scaffolding pipe. The at least one transverse carrier with load support is preferably arranged on the receiving portion or on the intermediate region, because this is the stabilizing region of the scaffolding pipe according to the invention. For example, such a scaffold element can be an angled element that is used to expand the operative face during the construction of the scaffold, or a frame element.
In particular, the scaffolding element may comprise two of the aforementioned scaffolding pipes, which are connected to each other by means of at least one transverse carrier, in order to form a framework element of the structural system of scaffolding A frame element that is constructed in this way, is usually known as an element H or an element T and is used during the construction of scaffolding, in order to form the side walls of the structural system of scaffolds in a fast and efficient manner.
Other features and advantages of the invention will be appreciated from the following description of the
<td>modalities</td><td>preferred and with</td><td>reference to the figures,</td><td>in</td>
<td>which:</td><td></td><td></td><td></td>
<td></td><td colspan="2">BRIEF DESCRIPTION OF THE FIGURES</td><td></td>
<td> -</td><td>Fig. 1 is</td><td>a longitudinal section</td><td>to</td>
<td>through</td><td>two pipes of</td><td>scaffolding according to</td><td>the</td>
<td>invention,</td><td>which are</td><td>inserted one inside</td><td>the</td>
another, according to the first modality;
Fig. 2 is a detailed cutout of Fig.
in the region of a first end of the axial pipe;
Fig. 3 is a longitudinal section through two scaffolding pipes according to the invention, which are inserted into each other according to a second embodiment;
Fig. 4 is a detailed cutout of Fig.
in the region of a first end of the axial pipe;
<td></td><td> -</td><td>Fig</td><td> . 5</td><td>is a</td><td>view</td><td>in perspective of</td><td>a</td>
<td>element</td><td>from</td><td>scaffold</td><td>from</td><td>agreement</td><td colspan="2">with the invention, with</td><td>two</td>
<td>pipelines</td><td>from</td><td>scaffolding</td><td>from</td><td>agreement</td><td>with the</td><td>invention; Y</td><td></td>
<td></td><td> -</td><td>Fig</td><td> . 6</td><td>is a</td><td>view</td><td>in perspective of</td><td>a</td>
<td>pipeline</td><td>from</td><td>scaffolding</td><td>from</td><td colspan="2">compliance <</td><td>with the invention,</td><td>in</td>
This case for a modular scaffolding system.
DETAILED DESCRIPTION OF THE INVENTION
Figures 1 to 4 show the scaffolding pipes 10 for a scaffolding structural system, whose pipes can be constructed as rods or members of a scaffold element, for example, a frame element shown below. Each scaffolding pipe 10 comprises a pipe axis A that extends from a first end of the axial pipe 12 to a second opposite end of the axial pipe 14, a receiving portion 16 that is provided on the first end of the axial pipe 12 and an insertion portion 18 that is provided on the second end of the axial pipe 14 and that has a smaller outer cross-section than the remaining portions of the scaffold pipe 10.
An inside diameter di, i of the receiving portion 16 is larger than an outside diameter d2,<sub>to</sub> of the insertion portion 18, such that an adjacent scaffold pipe 10 having an identical insertion portion 18, can be inserted into the receiving portion 16.
An intermediate region 20 connects the receiving portion 16 to the insertion portion 18, preferably joining the intermediate region 20 in a continuous manner with the same geometry and the same dimensions in the receiving portion 16.
The intermediate region 20 is integrally connected to the insertion portion 18 by means of a
<td>radial shoulder 22</td><td>. The</td><td>radial shoulder</td><td> 22</td><td>have</td><td>one side</td><td>from</td>
<td>support 24, the</td><td>which one</td><td>is directed</td><td colspan="2">to the</td><td>portion</td><td>from</td>
<td>insert 18 and</td><td colspan="2">which acts as</td><td>a</td><td>stop</td><td>when</td><td>two</td>
<td colspan="2">scaffolding pipes</td><td colspan="2">10 are inserted</td><td colspan="2">one inside</td><td>the</td>
<td>other.</td><td></td><td></td><td></td><td></td><td></td><td></td>
<td>All the</td><td colspan="2">scaffolding pipe</td><td> 10</td><td colspan="3">is preferably</td>
<td>produced in a</td><td>shape</td><td>integral from</td><td>a</td><td colspan="3">metal pipe,</td>
and the various portions are simply formed by means of the plastic deformation of the scaffolding pipe 10.
In accordance with Figures 1 and 3, the receiving portion 16 has at the first end of the axial pipe 12, precisely a positioning groove 26, which is interrupted or continuous in the peripheral direction and which reduces the internal diameter d<sub>lzi</sub> of the receiving portion 16. A minimum inside diameter di, i,<sub>min</sub> of the receiving portion 16 is defined in this case, precisely and only by a positioning slot 26.
This minimum inside diameter di<sub>z</sub>i<sub>zm</sub>i<sub>n</sub> of the receiving portion 16 defined by the positioning groove 26 is only slightly larger than the outer diameter d2,<sub>to</sub> of the insertion portion 18, such that the two scaffold pipes 10 that have been joined in the region of the positioning groove 26, are connected in a radial direction in an almost playless manner. This connection of the scaffolding pipes 10 that are inserted into each other with little radial play, leads to a high degree of stability and load bearing capacity of the scaffolding structural system.
Because the receiving portion 16 only has a single positioning groove 26, which defines the minimum inside diameter di, i, min, at the beginning of the insertion operation of the two scaffolding pipes 10, a very high degree of inclination of the scaffolding pipes 10 it is still possible, despite the small radial clearance in the region of the positioning groove 26, so that a simple assembly and disassembly of the scaffolding structural system occurs.
In order to allow a particularly large angle of inclination at the beginning of the operation of insertion of the two scaffolding pipes 10 and to fix the scaffolding pipes 10 that have been inserted into each other in the region of the first one with the other end of the axial pipe 12 in the most radially possible way without play, it is advantageous for the positioning groove 26 to be arranged as close as possible to the first end of the axial pipe 12. However, the positioning groove 26 is separated so far from the first end of the axial pipe 12, that the radial outer diameter di,<sub>to</sub> of the receiving portion 16 is no longer reduced by the positioning groove 26. The diameter of an annular front face forming the support face at the first end of the axial pipe 12 is subsequently not reduced by the positioning groove 26, the which has a positive effect on the stability and load bearing capacity of the scaffolding structural system.
The insertion portion 18 has from the second end of the axial pipe 14 to the radial shoulder 22, an axial insertion length L<sub>AND</sub>, having been found to be particularly advantageous for an axial space X<sub>P</sub> of the positioning groove 26 from the first end of the axial pipe 12 to be smaller than a third, in particular, smaller than a fifth, of the length of the axial insert L<sub>AND</sub>. The insertion length L<sub>AND</sub> It is preferably in a range from about 150 mm to 250 mm.
With respect to the inner diameter di, i of the receiving portion 16, it has been found to be particularly advantageous for axial separation X<sub>P</sub> of the positioning groove 26 from the first end of the axial pipe 12, which is smaller than the inside diameter di, i of the receiving portion 16.
As illustrated in Figures 1 and 3, the receiving portion 16 has another slot 28, which is interrupted or continues in the peripheral direction, this slot having
<td>28 regarding</td><td>to the</td><td>first</td><td>extreme</td><td>from</td><td>The pipe</td><td>axial 12,</td>
<td colspan="2">an axial space</td><td>plus</td><td>big</td><td>Xn</td><td>that</td><td>slot</td>
<td>positioning</td><td> 26</td><td>Y,</td><td colspan="2">defining</td><td>also a</td><td>diameter</td>
<td>interior di, i,<sub>N</sub>,</td><td>in</td><td>where:</td><td>say i <sub>F</sub> min</td><td><d</td><td>Ι, ί, Ν <say, i.</td><td>In others</td>
In other words, this means that the optional groove 28 has a wider radial clearance with respect to the insertion portion 18 of an inserted scaffold pipe 10, than the positioning groove 26. The groove 28 serves only to reduce the angle of inclination at the end of the insertion operation and, in the state of union of the two scaffolding pipes 10, which has an advantageous effect on the stability and load bearing capacity of the structural system of the scaffold, however, which hardly has any disadvantageous effect on its ease of assembly.
A particularly large reduction in inclination angle can occur when the groove 28 in an axial direction is arranged with as much space as possible from the positioning groove 26. With respect to the length of the axial insert L<sub>AND</sub> of the insertion portion 18, it has been found to be particularly advantageous if the following applies to an axial space X<sub>N</sub> of slot 28 from the first end of axial pipe 12: 0.5 * L<sub>AND</sub> <X<sub>N</sub> <L<sub>AND</sub>in particular X<sub>N</sub> * 0.8 * L<sub>and</sub>.
The insertion portion 18 has a tapered free end. The cross section of the insertion portion 18 is reduced to such an extent that the outer diameter d<sub>2</sub>,<sub>to </sub>of the insertion portion 18 is smaller than the inside diameter di, i,<sub>m</sub>i<sub>n</sub> of the receiving portion 16 in the region of the positioning groove 26. Accordingly, it is ensured that the insertion portion 18 of a first scaffold pipe 10 can be inserted into the receiving portion 16 of a second identical scaffold pipe 10.
According to Figures 1 and 3, the insertion portion 18 of the scaffolding pipe 10 tapers in the direction towards the second end of the axial pipe 14 and forms a tapered insertion portion 30. The tapered insertion portion 30 is axially joined by a cylindrical introduction portion 32 having a substantially constant circular-cylindrical cross section.
In the production variants of the scaffolding pipe 10 having such a tapered insertion portion 30, it should be ensured that the optional groove 28 in the joined state of two scaffold pipes 10, joins radially to the cylindrical introduction portion 32 and not to the tapered insertion portion 30, because otherwise the reduction of the angle of inclination does not occur, through the groove 28.
Moreover, the scaffolding pipe 10 has in the insertion portion 18, an opening 33 (see Figures 1 and 3), which is provided for a safety pin, which additionally ensures the connection after the two pipes of 10 scaffolds, have been joined. The receiving portion 16 has a corresponding opening 35, which is in alignment with the opening 33, so that the safety pin can be inserted through the two openings 33, 35.
In particular, with reference to the section details in Figures 2 and 4, it can be clearly seen that a pipe wall 34 of the scaffolding pipe 10 at the first end of the axial pipe 12 has a maximum wall thickness S<sub>max</sub> and also has a substantially constant smaller wall thickness s.
In the embodiments illustrated, the thickened portion of the pipe wall 34 at the first end of the axial pipe 12, was achieved by an annoying deformation of the scaffolding pipe 10 in a radially inward direction, such that the outer diameter d<sub>1 <a</sub> of the scaffolding pipe 10 in the first
<td>end of</td><td>the</td><td>pipeline</td><td>axial</td><td> 12,</td><td colspan="2">substantially</td>
<td>correspond</td><td>to the</td><td>diameter</td><td>Exterior</td><td><sup>d</sup>the</td><td>from</td><td>Serving</td>
<td>receiver</td><td> 16.</td><td>With the</td><td>exception</td><td>from</td><td>the</td><td>slot</td>
26 and slot positioning optionally provided
28, the receiving portion 16 therefore retains a substantially constant circular-cylindrical outer cross section.
In accordance with Figures 2 and 4, the scaffolding pipe 10 has at its first end of the axial pipe 12, a thickened portion 36, in which the pipe wall 34 is thickened in a substantially wedge-like manner, from the thickness smaller wall s, at maximum wall thickness S<sub>max</sub>, where the following applies to an axial dimension L<sub>to</sub> of thickened portion 36: s <L<sub>TO </sub><5 * s, in particular L<sub>TO</sub> "2 * s, where s designates (with the exception of thickened portion 36), the substantially constant wall thickness of the scaffolding pipe 10.
With respect to this wall thickness s of the scaffolding pipe 10, the following applies to the maximum wall thickness S<sub>max</sub> at the first end of the axial pipe 12: 1.2 * s ñ S<sub>max</sub> 2 * s, in particular S<sub>max</sub> «1.5 * s.
Figures 1 and 2 show scaffolding pipes according to a first embodiment, in which the insertion portion 18 adjacent to the radial shoulder 22 has a contraction 38, which extends in a peripheral direction, such that the face of annular support 24 has an inside diameter d<sub>3</sub>, which is smaller than the outer diameter d<sub>2</sub>,<sub>to</sub> of the insertion portion 18.
On the contrary, Figures 3 and 4 show the scaffolding pipes 10 according to a second embodiment, which is, however, very similar in terms of structure and function to the first embodiment, so that only the differences will be discussed. later.
In a modification of the first embodiment, these scaffolding pipes 10 according to Figures 3 and 4 have no contraction 38 that extends in a peripheral direction adjacent to the radial shoulder 22, such that the inside diameter d<sub>3 / i</sub> of the support face 24, substantially corresponds to the outer diameter d<sub>2</sub>,<sub>to</sub> of the insertion portion 18.
Instead, the annular support face 24 of the scaffolding pipe 10 according to Figures 3 and 4, unlike the first embodiment, has an outer diameter d<sub>3</sub>,<sub>to</sub> which is larger than the outer diameter di,<sub>to</sub> of the receiving portion 16.
This is achieved by the intermediate region 20 of the scaffolding pipe 10 adjacent to the radial shoulder 22 having a conical expansion portion 40, in which the scaffolding pipe 10 expands radially in the direction toward the radial shoulder 22.
With respect to the wall thickness s, the following applies to an expansion r of the expansion portion 40: 0.2 * s <r <s, in particular r «0.5 * s. Due to the radial expansion r of the intermediate region 20, it is ensured that, when the scaffolding pipes 10 are joined, an optionally expanded front face of the first end of the axial pipe 12 is always at a point of contact with the support face 24 over the entire surface area. Excessive surface pressure and non-uniform pressure distributions are thus substantially avoided.
Scaffolding pipes 10 in accordance with Figures 1 to 4 may also be provided with scaffolding elements. For example, these scaffolding elements are frame elements (see Figure 5) or angled elements, which in addition to the scaffolding pipe 10 have a transverse carrier 42 or a carrier that is constructed in another way. These carriers are welded to the scaffolding pipe (s) 10, in particular to the receiving portion 16 or the intermediate portion 20 thereof.
In the embodiment according to Figure 5, two scaffolding pipes 10 having different lengths are connected to each other by means of a transverse carrier 42, which is welded in each case, with a scaffolding element that is formed. Both scaffolding pipes 10 have, in this case, insertion portions 18, which are located on the same side and the corresponding receiving portions 16, at opposite ends thereof. An intermediate pipe may optionally be fitted in the shortest scaffolding pipe 10.
Alternatively, the scaffolding pipe 10 can also be used for an angled element, according to the invention.
Part of the thickened portion 36, the wall thickness s of the non-deformed scaffolding pipe 10 for an operational scaffolding system is a maximum of 3.2 mm, in particular approximately 2.7 mm, which is less than the wall thickness of Conventional scaffolding pipes. Consequently, the scaffolding pipes 10 according to the invention are lighter and, accordingly, have advantages in terms of handling.
Figure 5 illustrates a portion of an operational scaffolding system, which is arranged next to a construction site and where workers walk.
Alternatively, the scaffolding pipe 10 can also be part of a modular scaffolding system, as illustrated in Figure 6. Figure 6 specifically shows a scaffolding pipe 10, which is constructed as a carrier pipe and which , for example, transports a found for a roof. This scaffolding pipe 10 is also constructed as described above and illustrated with reference to Figures 1 to 4. Apart from the thickened portion 36, the wall thickness s of such scaffolding pipe 10 for scaffolding systems with load support is preferably between 2.7 mm and 3.2 mm, although this is not intended to be understood as limiting, and therefore is more smaller than the wall thickness of conventional pipes for scaffolding systems with load support.
The round safety plates 44, which are optionally provided and fitted to the scaffolding pipe 10, serve to secure the adjacent scaffold components.
List of reference numerals
<td> 10</td><td>Scaffolding pipes</td>
<td> 12</td><td>First axial end of pipe</td>
<td> 14</td><td>Second axial end of pipe</td>
<td> 16</td><td>Receiving Portion</td>
<td> 18</td><td>Insertion portion</td>
<td> 20</td><td>Intermediate region</td>
<td> 22</td><td>Shoulder</td>
<td></td><td>24 Support face 26 Positioning slot 28 Slot 30 Portion of tapered introduction</td>
<td> 5</td><td>32 Cylindrical introduction portion 33 Opening 34 Pipe Wall 35 Opening 36 Expansion Portion</td>
<td> 10</td><td>38 Contraction 40 Expansion Portion 42 Cross Carrier 44 Round Safety Plates</td>
CLAIMS
Contents6
5 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5
33 members in 23 offices
Priority claims7
| Document | Office | Kind | Date |
|---|---|---|---|
| 1020131083269 | Germany | – | |
| 102013108326 | Germany | A | |
| 102013108326 | Germany | A | |
| 2014065753 | European Patent Office (EPO) | W | |
| 2014065753 | European Patent Office (EPO) | W | |
| DE201310108326 | – | – | – |
| WO2014EP65753 | – | – | – |
Members33
| Document | Office | Kind | |
|---|---|---|---|
| CA2918177A1 | Canada | A1 | |
| DE102013108326A1 | Germany | A1 | |
| WO2015014676A1 | World Intellectual Property Organization (WIPO) | A1 | |
| SG11201510289YA | Singapore | A | |
| AR097036A1 | Argentina | A1 | |
| KR20160018728A | Republic of Korea | A | |
| AU2014298672A1 | Australia | A1 | |
| CN105408561A | China | A | |
| MX2016001214A | Mexico | A | |
| US2016153205A1 | United States of America | A1 | |
| EP3027826A1 | European Patent Office (EPO) | A1 | |
| AU2014298672B2 | Australia | B2 | |
| JP2016528408A | Japan | A | |
| HK1215963A1 | Hong Kong, China | A1 | |
| CL2016000264A1 | Chile | A1 | |
| ZA201508744B | South Africa | B | |
| UA113935C2 | Ukraine | C2 | |
| CN105408561B | China | B | |
| EP3027826B1 | European Patent Office (EPO) | B1 | |
| BR112015030603A2 | Brazil | A2 | |
| RU2016106306A | Russian Federation | A | |
| JP6211192B2 | Japan | B2 | |
| RU2633605C2 | Russian Federation | C2 | |
| DK3027826T3 | Denmark | T3 | |
| PT3027826T | Portugal | T | |
| ES2643367T3 | Spain | T3 | |
| NO3090026T3 | Norway | T3 | |
| KR101838823B1 | Republic of Korea | B1 | |
| US9920541B2 | United States of America | B2 | |
| PL3027826T3 | Poland | T3 | |
| CA2918177C | Canada | C | |
| MX367448BThis record | Mexico | B | |
| BR112015030603B1 | Brazil | B1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Grant or registrationFG | FG |
Numbers
- Publication
- 367448
- Publication, DOCDB
- 367448
- Publication, EPODOC
- MX367448
- Application
- 2016001214
- Application, DOCDB
- 2016001214
- Application, EPODOC
- MX2016001214
Titles2
- Spanish
- TUBERIA DE ANDAMIOS DE UN SISTEMA ESTRUCTURAL DE ANDAMIOS Y ELEMENTO DE ANDAMIOS.
- English
- ANDAMIOS PIPE OF A STRUCTURAL SYSTEM OF ANDAMIOS AND ELEMENTO DE ANDAMIOS.
Classification
- CPC, 9
- E04G1/06
- E04G7/301
- E04G1/14
- F16L19/02
- F16L13/04
- E04G7/30
- F16L19/025
- F16L13/16
- E04G7/20
- IPC, 4
- E04G1 06
- E04G1 14
- E04G7 20
- E04G7 30