ES2231036A1 - Stanchion - Google Patents

Stanchion

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Publication number
ES2231036A1
ES2231036A1 ES200302547A ES200302547A ES2231036A1 ES 2231036 A1 ES2231036 A1 ES 2231036A1 ES 200302547 A ES200302547 A ES 200302547A ES 200302547 A ES200302547 A ES 200302547A ES 2231036 A1 ES2231036 A1 ES 2231036A1
Authority
ES
Spain
Prior art keywords
inner tube
tube
strut
hole
stop block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES200302547A
Other languages
Spanish (es)
Other versions
ES2231036B1 (en
Inventor
Pedro Xammar Bove
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Encofrados J Alsina SA
Original Assignee
Encofrados J Alsina SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Encofrados J Alsina SA filed Critical Encofrados J Alsina SA
Priority to ES200302547A priority Critical patent/ES2231036B1/en
Priority to RU2006113746/03A priority patent/RU2348775C2/en
Priority to CNB2004800316206A priority patent/CN100432357C/en
Priority to EP04791388A priority patent/EP1693534A1/en
Priority to PCT/ES2004/000469 priority patent/WO2005042879A1/en
Priority to US10/577,851 priority patent/US20070164184A1/en
Publication of ES2231036A1 publication Critical patent/ES2231036A1/en
Application granted granted Critical
Publication of ES2231036B1 publication Critical patent/ES2231036B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00Shores or struts; Chocks
    • E04G25/04Shores or struts; Chocks telescopic
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements

Abstract

Prop, extendable by means of the removal of an inner tube coaxially disposed in an outer base tube, equipped with a safety device which prevents the complete separation of both tubes and which comprises connection means between the tubes, which prevent their separation but allow the movement of the lower end of the inner tube between two fixed points, the first of which is disposed on the inside of the base tube, as the second point is determined by the length of said connection means, since the connection means are composed of a thin and elongated connection element, such as a rod, a cable or similar, disposed lengthways on the inside of the base tube, with one end attached thereto and with the opposite end inserted into the inner tube, equipped with a stop block which prevents its removal from the inner tube.

Description

Puntal.Strut.

Sector técnico de la invenciónTechnical sector of the invention

La invención se refiere a un puntal, particularmente aplicable a encofrados, extensible mediante la extracción de un tubo interior dispuesto coaxial en un tubo base exterior esencialmente vertical.The invention relates to a strut, particularly applicable to formwork, extensible by extraction of an inner tube arranged coaxially in a base tube essentially vertical exterior.

Antecedentes de la invenciónBackground of the invention

Los puntales son soportes verticales regulables en altura, utilizados habitualmente en la construcción, constituidos por un tubo base exterior vertical, provisto en su extremo inferior de un pie de apoyo, y de un tubo interior, que es extraíble más o menos del tubo base, adaptando la longitud del puntal a la distancia entre las superficies o elementos a soportar por el puntal. Por lo general, el tubo interior está dotado también en su extremo exterior de un apoyo, configurado a modo de plataforma horizontal, para que el peso a soportar por el puntal se reparta sobre una superficie mayor.The struts are adjustable vertical supports in height, commonly used in construction, constituted by a vertical outer base tube, provided in its lower end of a support foot, and an inner tube, which is removable more or less from the base tube, adapting the length of the strut to the distance between the surfaces or elements to support by the prop. In general, the inner tube is also equipped at its outer end of a support, configured as a horizontal platform, so that the weight to be supported by the strut is Distribute over a larger area.

Los puntales están provistos de unos medios de fijación que permiten fijar la posición del tubo interior, una vez que éste se ha extraído lo suficiente del tubo base. Cuando los medios de fijación no están operativos, el tubo interior desliza libremente por dentro del tubo base. En tales circunstancias, es posible la extracción total del tubo interior.The struts are provided with means of fixing that allow to fix the position of the inner tube, once that it has been sufficiently removed from the base tube. When the fixing means are not operative, the inner tube slides freely inside the base tube. In such circumstances, it is possible the total extraction of the inner tube.

En ocasiones, y particularmente cuando se manipula el puntal y se invierte o inclina, respecto de su posición de trabajo normal, se puede producir la extracción completa de un modo casual o accidental del tubo interior, lo que puede ocasionar graves accidentes de trabajo.Sometimes, and particularly when manipulate the strut and invert or lean, with respect to its position of normal work, the complete extraction of a casual or accidental mode of the inner tube, which may cause serious accidents at work

Para evitar estas situaciones, se conocen puntales provistos de dispositivos de seguridad, que impiden la extracción completa del tubo interior del interior del tubo base.To avoid these situations, they are known props provided with safety devices, which prevent complete removal of the inner tube from the inside of the tube base.

Un ejemplo de realización está descrito en el documento ES 1031628 que hace referencia a un puntal con dispositivo imperdible del tubo interior, el cual incorpora en una zona próxima a su extremo inferior dos orificios, diametralmente opuestos, en los cuales se aloja una lengüeta, dispuesta transversalmente al tubo interior y de longitud ligeramente mayor al diámetro del tubo interior, de forma que sus extremos sobresalen por los citados orificios pero sin llegar a contactar con la pared interna del tubo exterior, habiéndose previsto la existencia de una arandela dispuesta externamente al tubo interior y con posibilidad de movimiento libre respecto del tubo en el interior de la tuerca de accionamiento, (que es la que en su movimiento, ascendente o descendente, arrastra el tubo interior para conseguir variar la longitud final del puntal), contando la citada arandela con un diámetro interior menor que la longitud de la lengüeta.An exemplary embodiment is described in the document ES 1031628 referring to a strut with captive device of the inner tube, which incorporates in a zone near its lower end two holes, diametrically opposite, in which a tongue is housed, arranged transversely to the inner tube and slightly longer than diameter of the inner tube, so that its ends protrude through the aforementioned holes but without contacting the wall internal of the outer tube, the existence of a washer arranged externally to the inner tube and with possibility free movement with respect to the tube inside the nut of actuation, (which is the one in its movement, ascending or descending, drag the inner tube to change the final length of the strut), counting said washer with a inner diameter less than the length of the tongue.

Otras realizaciones también comprenden topes interiores, solidarios del tubo interior, destinados a topar con salientes de diferentes formas o dimensiones dispuestos, también solidarios, en el tubo base.Other embodiments also include stops. interior, integral to the inner tube, intended to run into protrusions of different shapes or dimensions arranged, also solidarity, in the base tube.

Los dispositivos de seguridad conocidos no permiten la extracción total del tubo interior, pero el desmontaje de este último no resulta fácil. Además, tampoco permiten que ambos tubos permanezcan unidos cuando el tubo interior está totalmente extraído del interior del tubo base, lo que evitaría las situaciones de riesgo pero permitiría acceder al extremo inferior del tubo interior.Known security devices do not they allow the total extraction of the inner tube, but the disassembly The latter is not easy. Also, they don't allow both tubes remain attached when the inner tube is fully extracted from inside the base tube, which would avoid situations  risk but would allow access to the lower end of the tube inside.

Se hace notar pues la falta de un puntal con dispositivo de seguridad, que permita la fácil separación de ambos tubos cuando sea necesario y el acceso al extremo inferior del tubo interior, con la extracción completa del tubo interior, sin que exista una separación completa entre ambos tubos, garantizando la seguridad y evitando una separación accidental no deseada.It is noted therefore the lack of a prop with safety device, which allows easy separation of both tubes when necessary and access to the lower end of the tube inside, with the complete extraction of the inner tube, without there is a complete separation between both tubes, guaranteeing the safety and avoiding unwanted accidental separation.

Explicación de la invenciónExplanation of the invention.

El puntal de la invención es extensible, mediante la extracción de un tubo interior dispuesto coaxial en un tubo base exterior, y comprende unos medios de fijación de la posición de dicho tubo interior respecto del tubo exterior base, así como un dispositivo de seguridad que impide la separación total de ambos tubos cuando los medios de fijación están inoperativos.The strut of the invention is extensible, by the extraction of an inner tube arranged coaxial in a base tube exterior, and comprises means for fixing the position of said inner tube with respect to the outer base tube, as well as a safety device that prevents the total separation of both tubes when the fixing means are inoperative.

En esencia, el puntal se caracteriza porque el dispositivo de seguridad comprende unos medios de enlace entre ambos tubos, que impiden su separación pero permiten el desplazamiento del extremo interior del tubo interior entre dos puntos fijos, de los que el primer punto está dispuesto en el interior del tubo base exterior, en tanto que el segundo punto viene determinado por la longitud de dichos medios de enlace.In essence, the strut is characterized because the security device comprises means of connection between both tubes, which prevent their separation but allow displacement of the inner end of the inner tube between two fixed points, of which the first point is arranged in the inside the outer base tube, while the second point is determined by the length of said linking means.

Según una realización preferida, los medios de enlace están constituidos por un elemento de unión delgado y alargado, tal como una varilla, un cable o similar, longitudinalmente dispuesto en el interior del tubo base exterior, estando el primer extremo del elemento de unión fijado amoviblemente en un extremo del citado tubo exterior, mientras que el extremo contrario, introducido en el tubo interior, está provisto de un bloque de tope que impide su extracción del tubo interior al topar contra un elemento retenedor solidario del extremo interior del tubo interior, impidiendo la salida del bloque de tope del interior del tubo interno.According to a preferred embodiment, the means of link are made up of a thin junction element and elongated, such as a rod, a cable or the like, longitudinally arranged inside the outer base tube, the first end of the connecting element being removably fixed at one end of said outer tube, while the end opposite, inserted into the inner tube, it is provided with a stop block that prevents its removal from the inner tube when bumping against a retaining element integral with the inner end of the inner tube, preventing the exit of the inner stop block of the inner tube.

Según otra característica de la invención, el elemento retenedor está formado por una tapa, la cual está provista de un orificio pasante cuyo diámetro es menor que el del bloque de tope, por lo que permite el paso a su través del elemento de unión pero impide el paso del bloque de tope.According to another feature of the invention, the retaining element is formed by a cover, which is provided of a through hole whose diameter is smaller than that of the block of stop, so it allows the passage through the joint element but prevents the passage of the stop block.

Según otro aspecto de la invención, el tubo interior está provisto de un segundo orificio pasante en un lateral, adyacente al orificio de la tapa, preferentemente de sección igual a la del bloque de tope y comunicado con dicho orificio de la tapa mediante una ranura, de anchura sensiblemente superior a la del elemento de unión.According to another aspect of the invention, the tube interior is provided with a second through hole in a lateral, adjacent to the hole of the lid, preferably of section equal to that of the stop block and communicated with said hole of the lid by means of a groove, of width substantially superior to that of the connecting element.

Breve descripción de los dibujosBrief description of the drawings

En los dibujos adjuntos se ilustra, a título de ejemplo no limitativo, un modo de realización preferido del puntal objeto de la invención. En dichos dibujos:The attached drawings illustrate, by way of non-limiting example, a preferred embodiment of the strut object of the invention. In these drawings:

La Fig. 1, es una vista en alzado y en sección del puntal objeto de la invención, en posición normal;Fig. 1 is an elevation and sectional view. of the strut object of the invention, in normal position;

la Fig. 2, es una vista en alzado y en sección del puntal objeto de la invención, en posición invertida y extendido;Fig. 2, is an elevation and sectional view of the strut object of the invention, in an inverted position and extended;

la Fig. 3, es una vista en detalle del extremo inferior del tubo interior del puntal;Fig. 3, is a detailed view of the end bottom of the inner tube of the strut;

la Fig. 4, es una vista en detalle del elemento de unión de ambos tubos y del bloque de tope dispuesto en uno de sus extremos; yFig. 4, is a detail view of the element of union of both tubes and the stop block arranged in one of its extremes; Y

La Fig.5, es una vista en detalle del extremo más inferior del tubo base y de la fijación amovible del extremo de la varilla al citado tubo base.Fig. 5, is a detailed view of the most extreme bottom of the base tube and the removable fixing of the end of the rod to said base tube.

Descripción detallada de los dibujosDetailed description of the drawings

El puntal 1 de las Figs. 1 y 2 está formado por dos tubos, un primer tubo base exterior 3 y un segundo tubo interior 2, deslizable por el interior del tubo base 3 de manera que puede ser extraído del mismo en mayor o menor medida según la longitud que se desee para el puntal.The strut 1 of Figs. 1 and 2 is formed by two tubes, a first outer base tube 3 and a second tube inside 2, sliding inside the base tube 3 so which can be extracted from it to a greater or lesser extent according to the desired length for the strut.

En dichas figuras no se han representado los medios de fijación de ambos tubos 2 y 3, que permiten fijarlos una vez se ha dotado al puntal 1 de la longitud deseada para su utilización.In these figures the fixing means of both tubes 2 and 3, which allow fixing them a once the strut 1 has been provided with the desired length for its utilization.

La Fig. 1, que representa el puntal 1 en posición no extendida, muestra que en el interior del tubo base 3 están dispuestos los medios de enlace 12, constituidos por una varilla que hace las funciones de enlace entre los dos tubos 2 y 3. La varilla 12 está acoplada amoviblemente al extremo 17 inferior del tubo base 3. A tal efecto, la varilla 12 está provista en su extremo de una anilla de sujeción 13, la cual está atravesada por un pasador 14 que atraviesa el tubo base 3 y que está sujeto a éste mediante tornillos 15 o cualquier otro método conocido.Fig. 1, which represents the strut 1 in position not extended, shows that inside the base tube 3 are arranged the link means 12, constituted by a rod which acts as a link between the two tubes 2 and 3. The rod 12 is removably coupled to the lower end 17 of the base tube 3. For this purpose, the rod 12 is provided at its end of a clamping ring 13, which is crossed by a pin 14 that crosses the base tube 3 and which is attached to it by screws 15 or any other known method.

Alternativamente al sistema representado en las Figs. 1 y 2, el inventor ha previsto otros tipos de fijación del extremo de la varilla 12 al extremo más inferior 17 del tubo base 3. Un ejemplo de dichos sistemas se representa en la Fig. 5, en la que se puede apreciar que la varilla 12 está dotada en su extremo acoplable de un ensanchamiento 20 y que el extremo inferior del tubo base 3 está provisto de un soporte inferior 19, dotado a su vez de una porción central elevada provista de un orificio pasante 22, a través del cual se introduce el extremo de la varilla 12 hasta la citada zona de ensanchamiento 20, que bloquea el paso de la varilla 12 a través del orificio pasante 22.Alternatively to the system represented in the Figs. 1 and 2, the inventor has foreseen other types of fixing of the end of rod 12 to lower end 17 of base tube 3. An example of such systems is depicted in Fig. 5, in the that it can be seen that the rod 12 is provided at its end attachable from a widening 20 and that the lower end of the tube base 3 is provided with a lower support 19, in turn provided with a raised central portion provided with a through hole 22, a through which rod end 12 is introduced until the said widening zone 20, which blocks the passage of the rod 12 through the through hole 22.

En la Fig. 5, el extremo 23 de la varilla 12 que sobresale del orificio pasante 22 está dotado de una rosca externa en la que se enrosca una tuerca 21 o similar, fijándose de este modo la varilla 12 al tubo base. Cabe decir que también se contemplan otros tipos de fijación para el extremo de la varilla 12 al soporte 19, tales como la soldadura, el remachado o simplemente la deformación del extremo de la varilla 12 que sobresale del orificio pasante 22.In Fig. 5, the end 23 of the rod 12 which protruding from the through hole 22 is provided with an external thread in which a nut 21 or similar is screwed, fixing this mode the rod 12 to the base tube. It is possible to say that also contemplate other types of fixation for rod end 12 to support 19, such as welding, riveting or simply the deformation of the end of the rod 12 protruding from the through hole 22.

En cualquier caso, la varilla 12 queda dispuesta longitudinalmente en el interior del puntal 1 y atraviesa la tapa 8 del extremo inferior 7 del tubo interior 2 por el orificio pasante 9 (Fig. 4).In any case, the rod 12 is arranged longitudinally inside the strut 1 and goes through the lid 8 of the lower end 7 of the inner tube 2 through the through hole 9 (Fig. 4).

En el extremo 18 contrario al que está fijado al tubo base 3, la varilla 12 está provista de un bloque de tope 6, que tal y como indica la Fig. 1, queda dispuesto dentro del tubo interior 2.At the opposite end 18 to the one attached to the base tube 3, the rod 12 is provided with a stop block 6, which, as indicated in Fig. 1, is arranged inside the tube interior 2.

Si se invierte el puntal 1 respecto de su posición de trabajo normal, el tubo 2 puede deslizarse por el interior del tubo base 3, en la dirección que indica la flecha 16 de la Fig. 2, hasta que la tapa 8 topa con el citado bloque de tope 6, pues el tamaño de éste es superior al diámetro del orificio pasante 9 de la tapa 8. En este punto el tubo interior 2 no puede desplazarse más en sentido hacia fuera. Esta situación se representa en la Fig. 2.If strut 1 is reversed with respect to its normal working position, tube 2 can slide through the inside the base tube 3, in the direction indicated by arrow 16 of Fig. 2, until the lid 8 meets the said stop block 6, since the size of the latter is larger than the diameter of the hole through 9 of cover 8. At this point the inner tube 2 cannot scroll more outward. This situation is depicted in Fig. 2.

Para amortiguar el impacto del bloque de tope 6 en la tapa 8, está provisto dotar al bloque de tope de un elemento amortiguador, tal como una goma o similar, o realizar el mismo bloque de tope 6 a partir de un material que absorba parte del impacto.To cushion the impact of the stop block 6 in the cover 8, it is provided to provide the stop block with an element shock absorber, such as a rubber or similar, or perform the same stop block 6 from a material that absorbs part of the impact.

Según sea la longitud de la varilla 12 y el tubo interior 2, éste estará totalmente extraído o no del tubo base 3 cuando el bloque de tope 6 detenga el deslizamiento del tubo interior 2 al topar con la tapa 8 del extremo inferior 7 del mismo. Así pues, si la varilla 12 es suficientemente larga, el tubo 2 podrá ser extraído totalmente del tubo base 3 pero permanecerán unidos por la varilla 12 y el bloque de tope 6. Por el contrario, si la varilla 12 es más corta que el tubo base 3, el tubo interior 2 no podrá ser extraído en su totalidad del tubo base 3.Depending on the length of the rod 12 and the tube inside 2, it will be totally or not completely removed from the base tube 3 when the stop block 6 stops the sliding of the tube inside 2 when bumping the cover 8 of the lower end 7 thereof. Thus, if the rod 12 is long enough, the tube 2 may  be completely removed from base tube 3 but will remain attached by rod 12 and stop block 6. On the contrary, if the rod 12 is shorter than the base tube 3, the inner tube 2 does not It may be completely removed from the base tube 3.

Las Figs. 3 y 4 muestran en detalle el extremo de la varilla 12, provista de un bloque de tope 6, y del extremo inferior 7 del tubo interior 2, respectivamente.Figs. 3 and 4 show in detail the end of the rod 12, provided with a stop block 6, and the end bottom 7 of inner tube 2, respectively.

En el caso de que la tapa 8 no sea extraíble, para facilitar el montaje del puntal 1 el tubo interior 2 está provisto de un segundo orificio pasante 10, de contorno igual al del bloque de tope 6, a través del cual dicho tope 6 puede introducirse en el interior del tubo interior 2. El segundo orificio pasante 10 está comunicado con el orificio pasante 9 de la tapa 8 mediante una ranura 11, que permite disponer el tubo interior y la varilla 12 en línea una vez introducido el bloque de tope 6 en el tubo interior 2 por el orificio pasante 10, de modo que el tubo interior pueda ser introducido en el tubo base. La misma operación pero a la inversa debe realizarse en el caso de querer separar la varilla 12 del tubo interior 2 y sacar el bloque de tope 6 del interior del tubo interior 2.In case the cover 8 is not removable, to facilitate the assembly of the strut 1 the inner tube 2 is provided with a second through hole 10, of contour equal to of the stop block 6, through which said stop 6 can fit inside the inner tube 2. The second hole through 10 is connected to the through hole 9 of the cover 8 through a slot 11, which allows the inner tube and the rod 12 in line once the stop block 6 is inserted in the inner tube 2 through the through hole 10, so that the tube inside can be introduced into the base tube. The same operation but conversely it must be done in case you want to separate the rod 12 of inner tube 2 and remove stop block 6 from inside of inner tube 2.

En el caso de que la varilla 12 fuese más larga que el tubo base 3, para garantizar que el bloque de tope 6 no pueda salir del interior del tubo interior 2 una vez éste se halle totalmente extraído del tubo base 3, puede dotarse al bloque de tope 6 de una sección de contorno poligonal, coincidente con el contorno del segundo orificio pasante 10 del lateral del tubo interior, de manera que el bloque de tope 6 sólo se podría sacar del tubo interior 2 a través del orificio 10, disponiendo la varilla 12 en posición perpendicular respecto del tubo interior 2, lo que resulta prácticamente imposible que se produzca casualmente o por accidente. Naturalmente, lo mismo ocurriría si la longitud del bloque de tope 6 es mayor que el diámetro del orificio 10.In case the rod 12 was longer than the base tube 3, to ensure that the stop block 6 does not can leave the inside of the inner tube 2 once it is found completely removed from the base tube 3, the block can be provided stop 6 of a polygonal contour section, coinciding with the contour of the second through hole 10 on the side of the tube inside, so that the stop block 6 could only be removed of the inner tube 2 through the hole 10, arranging the rod 12 perpendicular to the inner tube 2, which is almost impossible to happen casually or by accident. Naturally, the same would happen if the length of the  stop block 6 is larger than the diameter of the hole 10.

En el momento del montaje del puntal 1 y para facilitar la introducción de la varilla 12 por un extremo del tubo 2 y a través del orificio pasante 9 del extremo contrario, se ha previsto dotar al tubo 2, en la zona próxima al orifico pasante 9, de un estrechamiento gradual en el sentido hacia afuera de su sección interior, a modo de cuello o embudo, para que el extremo inferior de la varilla 12 sea dirigido hacia el orificio pasante 9. Dicha configuración a modo de embudo también se puede realizar en el tubo base 3, cerca del orificio pasante 22, si existe.When mounting strut 1 and for facilitate the introduction of the rod 12 by one end of the tube 2 and through the through hole 9 of the opposite end, planned to provide tube 2, in the area next to the through hole 9, of a gradual narrowing in the outward direction of your inner section, by way of neck or funnel, so that the end Bottom of the rod 12 is directed towards the through hole 9. This funnel configuration can also be done in the base tube 3, near the through hole 22, if it exists.

Claims (4)

1. Puntal (1), particularmente aplicable a encofrados, extensible mediante la extracción de un tubo interior (2) dispuesto coaxial en un tubo base exterior (3), que comprende unos medios de fijación de la posición de dicho tubo interior respecto del tubo exterior base y de un dispositivo de seguridad que impide la separación total de ambos tubos cuando los medios de fijación están inoperativos, caracterizado porque el dispositivo de seguridad comprende unos medios de enlace (12) entre ambos tubos, que impiden su separación pero permiten el desplazamiento del extremo inferior (7) del tubo interior (2) entre dos puntos fijos, de los que el primer punto está dispuesto en el interior del tubo base exterior (3), en tanto que el segundo punto viene determinado por la longitud de dichos medios de enlace.1. Strut (1), particularly applicable to formwork, extensible by extracting an inner tube (2) arranged coaxially in an outer base tube (3), which comprises means for fixing the position of said inner tube with respect to the tube outer base and a safety device that prevents the total separation of both tubes when the fixing means are inoperative, characterized in that the security device comprises means of connection (12) between both tubes, which prevent their separation but allow displacement of the lower end (7) of the inner tube (2) between two fixed points, of which the first point is arranged inside the outer base tube (3), while the second point is determined by the length of said means of link. 2. Puntal (1) según la reivindicación 1, caracterizado porque los medios de enlace (12) están constituidos por un elemento de unión delgado y alargado, tal como una varilla, un cable o similar, longitudinalmente dispuesto en el interior del tubo base exterior (3), estando el primer extremo (17) del elemento de unión fijado amoviblemente en un extremo del citado tubo exterior (3) mientras que el extremo contrario (18), introducido en el tubo interior (2), está provisto de un bloque de tope (6) que impide su extracción del tubo interior al topar contra un elemento retenedor solidario del extremo inferior (7) del tubo interior, impidiendo la salida del bloque de tope (6) del interior del tubo interno.2. Strut (1) according to claim 1, characterized in that the connecting means (12) are constituted by a thin and elongated connecting element, such as a rod, a cable or the like, longitudinally arranged inside the outer base tube (3), the first end (17) of the connecting element removably fixed at one end of said outer tube (3) while the opposite end (18), inserted into the inner tube (2), is provided with a block of stop (6) that prevents its extraction from the inner tube when it bumps against a retaining element integral with the lower end (7) of the inner tube, preventing the exit of the stop block (6) from inside the inner tube. 3. Puntal (1) según la reivindicación 2, caracterizado porque el elemento retenedor está formado por una tapa (8), la cual está provista de un orificio pasante (9) cuyo diámetro es menor que el del bloque de tope (6), por lo que permite el paso a su través del elemento de unión (12) pero impide el paso del bloque de tope (6).3. Strut (1) according to claim 2, characterized in that the retaining element is formed by a cover (8), which is provided with a through hole (9) whose diameter is smaller than that of the stop block (6), whereby it allows the passage through the connecting element (12) but prevents the passage of the stop block (6). 4. Puntal (1) según las reivindicaciones 2 ó 3, caracterizado porque el tubo interior (2) está provisto de un segundo orificio pasante (10) en un lateral, adyacente al orificio (9) de la tapa (8), preferentemente de sección igual a la del bloque de tope (6) y comunicado con dicho orificio de la tapa mediante una ranura (11), de anchura sensiblemente superior a la del elemento de unión (12).4. Strut (1) according to claims 2 or 3, characterized in that the inner tube (2) is provided with a second through hole (10) on one side, adjacent to the hole (9) of the cover (8), preferably of section equal to that of the stop block (6) and communicated with said hole of the cover by means of a groove (11), of a width substantially greater than that of the connecting element (12).
ES200302547A 2003-10-31 2003-10-31 STRUT. Expired - Fee Related ES2231036B1 (en)

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ES200302547A ES2231036B1 (en) 2003-10-31 2003-10-31 STRUT.
RU2006113746/03A RU2348775C2 (en) 2003-10-31 2004-10-27 Stand
CNB2004800316206A CN100432357C (en) 2003-10-31 2004-10-27 Stanchion
EP04791388A EP1693534A1 (en) 2003-10-31 2004-10-27 Stanchion
PCT/ES2004/000469 WO2005042879A1 (en) 2003-10-31 2004-10-27 Stanchion
US10/577,851 US20070164184A1 (en) 2003-10-31 2004-10-27 Prop

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US7950615B2 (en) * 2009-03-30 2011-05-31 Jung-Wen Lu Press-fit extendable support rod
ES2398886B1 (en) * 2011-05-23 2013-10-17 Diego M. DEL CASTILLO GÓMEZ TUBULAR ELEMENT SETTING SYSTEM.
US20170002538A1 (en) * 2015-06-30 2017-01-05 Trinity Shoring Products, Inc. System and Method for a Telescopic Strut
CN106121273A (en) * 2016-06-17 2016-11-16 哈尔滨金玉科技开发有限公司 A kind of building-supporting device
CN106013841A (en) * 2016-06-17 2016-10-12 哈尔滨金玉科技开发有限公司 Building bearing column
CN106088664A (en) * 2016-06-17 2016-11-09 哈尔滨金玉科技开发有限公司 A kind of adjustable building bearing post
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WO2005042879A1 (en) 2005-05-12
ES2231036B1 (en) 2006-07-01
CN1875158A (en) 2006-12-06
US20070164184A1 (en) 2007-07-19
RU2006113746A (en) 2007-12-10
RU2348775C2 (en) 2009-03-10
CN100432357C (en) 2008-11-12
EP1693534A1 (en) 2006-08-23

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