EP0296957A2 - Self-erecting telescoping mast - Google Patents

Self-erecting telescoping mast Download PDF

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Publication number
EP0296957A2
EP0296957A2 EP88401540A EP88401540A EP0296957A2 EP 0296957 A2 EP0296957 A2 EP 0296957A2 EP 88401540 A EP88401540 A EP 88401540A EP 88401540 A EP88401540 A EP 88401540A EP 0296957 A2 EP0296957 A2 EP 0296957A2
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EP
European Patent Office
Prior art keywords
trailer
mast
elements
self
lower element
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Granted
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EP88401540A
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German (de)
French (fr)
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EP0296957B1 (en
EP0296957A3 (en
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Roger André Guenin
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Individual
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Priority to AT88401540T priority Critical patent/ATE80197T1/en
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Publication of EP0296957A3 publication Critical patent/EP0296957A3/en
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Publication of EP0296957B1 publication Critical patent/EP0296957B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
    • E04H12/182—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic telescopic

Definitions

  • the present invention relates to a self-lifting telescopic mast mounted on a trailer and intended in particular, but not exclusively, for the establishment of temporary civil or military radio links.
  • Self-lifting masts carried on a self-towing trailer are known, in particular from FR-A-2 422 792. They consist of elements of decreasing section from bottom to top whose relative movement is controlled by cables, a cylinder being disposed inside the lower element, so as to raise the second element, this elevation of the second element resulting in the deployment of the pylon under the action of the cables passing over pulleys.
  • the lower element rests on the ground and a triangulation ensures the stability of the deployed pylon. This triangulation requires the installation of shrouds which requires a long installation time often incompatible with the needs of the service.
  • Other pylons of this type are described in patents FR-A-1 357 031, FR-A-1 545 379 and US-A-3 047 107.
  • the object of the present invention is to remedy these drawbacks and to make it possible to obtain a compact folded structure which can be erected quickly and without tools by a single man, in a reduced time compared to that required by the installation of the self-propelled prior art elevators.
  • the self-lifting telescopic mast mounted on a self-towing trailer comprising telescopic elements of decreasing section from bottom to top, a tilting cylinder of the lower element, and at least one lifting cylinder inside the basic element, is characterized in that it comprises semi-automatic spikes, pivotally mounted on axes carried by the trailer.
  • the struts provide stability and level of the mast, which in some cases achieves sufficient triangulation on the ground.
  • the pylon works completely in console and the pylon foot no longer touches the ground.
  • the bracons whose weight can be for example 200 kg, require for their positioning, an effort of approximately 30 kg which can be provided by a single man.
  • the double tilting cylinder works in thrust.
  • the telescopic elements are elements with triangular cross-section with double members.
  • the actual erection time of the pylon at 30 meters can be, for example, 1.5 minutes, all of the positioning operations lasting approximately ten minutes.
  • the trailer designated by the reference 1 carries a telescopic pylon 2 consisting of elements 2a, 2b, 2c, 2d, 2e, 2f.
  • the mast supports for example a parabolic antenna 3, the head load can be arbitrary with a limit of 350 kgs, for example.
  • the element 2a rests on the trailer 1. It has a frame 4 carried by two wheels 5. It rests on the ground, on the one hand by a shoe 6 and on the other hand by two struts 7 in triangulated profile. , pivotally mounted each around an axis 8 inclined relative to the vertical. Thus, after deployment, they automatically come into contact with the ground. The end of the struts 7 rests on the ground by pads 9.
  • each of the coils comprises, coiled, a guy 11 whose one end is connected to the upper part of the upper element 2f.
  • a third coil 10 is mounted on the boom of the chassis 4 of the trailer. After deployment of the bracons, these form, with the arrow, a substantially equilateral triangle.
  • the mast does not rest on the ground, but is carried by the chassis 4 of the trailer which, itself, rests on the ground by the pad 6 and by the pads 9 (including one only appears in Figure 1).
  • Guy lines 12 remain at a fixed position on the mast, whether it is unfolded or folded, without any tools for their tension, this tension being adjustable by hand by tensioners 13.
  • the three automatic reels 10 can be detached from the struts and from the trailer support to be fixed at a distance of approximately 15 meters from the trailer. At this time, mast stability is ensured for winds of up to 160 km / hour. It was necessary, in the known pylons, to use a much higher number of coils, for example 13, to obtain the same stability.
  • Figure 2 is shown the telescopic mast in the folded and tilted position on the trailer 1.
  • shrouds 11 have been folded over the reels 10, the arrangement of the pulleys 14 allowing keep the shrouds in their throats, without having to fix them.
  • the lower element 2a of the pylon is pivotally mounted about an axis 15, this pivoting being obtained by action on two hydraulic cylinders 16 of which only one appears in the figure. Said jacks work in thrust whereas, originally, the lower element was pulled to make it tilt.
  • FIG. 4 represents a detailed view of the mast in the erection position, and it can be seen in this figure, that the elements of the mast 2 are constituted by lattice beams in order to reduce the wind resistance and the weight, these beams having a triangular section. In each corner of the section are arranged two parallel uprights 17, 18, serving as a guide for the upper element, so that each of the elements is guided over its entire height, rigorously, which avoids the possibility of overlapping during erection or during the redeployment of the mast.
  • the operating mode of a mast is as follows. Firstly, the antenna 3 and the aerials are mounted, before the assembly tilts, that is to say on the ground. Then, the opening of the semi-automatic bracons ensures the leveling and the stability of the whole. The arms are then locked and tensioned. The tilting of the lower element 2a by the preferably hydraulic jacks 16, controlled from a station located either in the towing vehicle or on the trailer. The mast can then be raised by the lifting cylinder (not shown) and the guy lines 11 remain either attached to the trailer and to the struts, or are moved away from the latter by means of the coils 10 in the event of bad weather. The head load can reach 350 kg and the set up is very quick and for example, one man can erect and stay the mast in about 10 minutes.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Road Signs Or Road Markings (AREA)
  • Support Of Aerials (AREA)
  • Accessories Of Cameras (AREA)
  • Jib Cranes (AREA)
  • Details Of Aerials (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

Self-erecting telescoping mast carried by a trailer (1). According to the invention, two braces (7) are articulated to the frame (4) about inclined axes (8), the lower element (2a) of the mast being supported by the trailer. Applications: increase in the stability and reduction in the assembly time. <IMAGE>

Description

La présente invention a pour objet un mât télescopique auto-élévateur monté sur remorque et destiné en particulier, mais non exclusivement, à l'établissement de liaisons hertziennes temporaires civiles ou militaires.The present invention relates to a self-lifting telescopic mast mounted on a trailer and intended in particular, but not exclusively, for the establishment of temporary civil or military radio links.

Des mâts auto-élévateurs portés sur une remorque auto-tractée sont connus, notamment par FR-A-2 422 792. Ils sont constitués par des éléments de section décroissante du bas vers le haut dont le déplacement relatif est commandé par des câbles, un vérin étant disposé à l'intérieur de l'élément inférieur, de façon à élever le second élément, cette élévation du second élément se traduisant par le déploiement du pylône sous l'action des câbles passant sur des poulies. En position d'érection ou de déploiement, l'élément inférieur repose sur le sol et une triangulation permet d'assurer la stabilité du pylône déployé. Cette triangulation requiert la pose de haubans ce qui nécessite un temps d'installation important souvent incompatible avec les nécessités du service. D'autres pylônes de ce type sont décrits dans les brevets FR-A-1 357 031, FR-A-1 545 379 et US-A-3 047 107.Self-lifting masts carried on a self-towing trailer are known, in particular from FR-A-2 422 792. They consist of elements of decreasing section from bottom to top whose relative movement is controlled by cables, a cylinder being disposed inside the lower element, so as to raise the second element, this elevation of the second element resulting in the deployment of the pylon under the action of the cables passing over pulleys. In the erection or deployment position, the lower element rests on the ground and a triangulation ensures the stability of the deployed pylon. This triangulation requires the installation of shrouds which requires a long installation time often incompatible with the needs of the service. Other pylons of this type are described in patents FR-A-1 357 031, FR-A-1 545 379 and US-A-3 047 107.

La présente invention a pour objet de remédier à ces inconvénients et de permettre d'obtenir une structure repliée compacte pouvant être érigée rapidement et sans outillage par un seul homme, dans un temps reduit par rapport à celui nécessité par l'installation des pylônes auto-élévateurs selon la technique antérieure.The object of the present invention is to remedy these drawbacks and to make it possible to obtain a compact folded structure which can be erected quickly and without tools by a single man, in a reduced time compared to that required by the installation of the self-propelled prior art elevators.

Selon la présente invention, le mât télescopique auto-élévateur monté sur une remorque auto-tractée, comprenant des éléments télescopiques de section décroissante du bas vers le haut, un vérin de basculement de l'élément inférieur, et au moins un vérin d'élévation à l'intérieur de l'élément de base, est caractérisé en ce qu'il comprend des bracons semi-automatiques, montés pivotants sur des axes portés par la remorque.According to the present invention, the self-lifting telescopic mast mounted on a self-towing trailer, comprising telescopic elements of decreasing section from bottom to top, a tilting cylinder of the lower element, and at least one lifting cylinder inside the basic element, is characterized in that it comprises semi-automatic spikes, pivotally mounted on axes carried by the trailer.

Les bracons assurent la stabilité et le niveau du mât, ce qui réalise, dans certains cas, une triangulation au sol suffisante. De plus, le pylône travaille complètement en console et le pied pylône ne touche plus le sol.The struts provide stability and level of the mast, which in some cases achieves sufficient triangulation on the ground. In addition, the pylon works completely in console and the pylon foot no longer touches the ground.

Ainsi, les bracons dont le poids peut être par exemple de 200 kg, nécessitent pour leur mise en position, un effort de 30 kg environ qui peut être fourni par un seul homme.Thus, the bracons whose weight can be for example 200 kg, require for their positioning, an effort of approximately 30 kg which can be provided by a single man.

Selon une autre caractéristique de l'invention, le double vérin de basculement travaille en poussée.According to another characteristic of the invention, the double tilting cylinder works in thrust.

Selon une autre caractéristique de l'invention, les éléments télescopiques sont des éléments à section triangulaire croisillonnés à double membrure. Ainsi, le guidage des léments les uns sur les autres est assuré sur toute la hauteur. Le temps d'érection proprement dit du pylône à 30 mètres, peut être par exemple de 1 minute et demie, l'ensemble des opérations de positionnement durant environ dix minutes.According to another characteristic of the invention, the telescopic elements are elements with triangular cross-section with double members. Thus, the guiding of the elements on each other is ensured over the entire height. The actual erection time of the pylon at 30 meters can be, for example, 1.5 minutes, all of the positioning operations lasting approximately ten minutes.

D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description qui va suivre d'un mode particulier de réalisation, donné uniquement à titre d'exemple non limitatif, en regard des dessins qui représentent :

  • - la figure.1, une vue en perspective d'un mât déployé ;
  • - la figure 2, une vue en perspective du mât replié sur sa remorque ;
  • - la figure 3, une vue de détail du basculement de l'élément inférieur ;
  • - la figure 4, une vue de détail montrant la double membrure des éléments ;
  • - la figure 5, une vue du pied de mât déployé.
Other characteristics and advantages of the present invention will appear during the following description of a particular embodiment, given solely by way of nonlimiting example, with reference to the drawings which represent:
  • - Figure.1, a perspective view of a deployed mast;
  • - Figure 2, a perspective view of the mast folded on its trailer;
  • - Figure 3, a detailed view of the tilting of the lower element;
  • - Figure 4, a detail view showing the double frame of the elements;
  • - Figure 5, a view of the mast foot deployed.

Sur les figures 1 et 5, la remorque désignée par la référence 1, porte un pylône télescopique 2 constitué d'éléments 2a, 2b, 2c, 2d, 2e, 2f. Le mât supporte par exemple une antenne parabolique 3, la charge de tête pouvant être quelconque avec une limite de 350 kgs, par exemple. L'élément 2a repose sur la remorque 1. Celle-ci présente, un bâti 4 porté par deux roues 5. Elle repose sur le sol, d'une part par un patin 6 et d'autre part par deux bracons 7 en profilé triangulé, montés pivotants chacun autour d'un axe 8 incliné par rapport à la verticale. Ainsi, après déploiement, ils viennent automatiquement en contact avec le sol. L'extrémité des bracons 7 repose sur le sol par des patins 9. Les patins supportent des bobines automatiques 10, avantageusement du type décrit dans le brevet n° 86 01558 portant les haubans 11. Comme décrit dans ce brevet, chacune des bobines comporte, enroulé, un hauban 11 dont une extrémité est reliée à la partie supérieure de l'élément supérieur 2f. Une troisième bobine 10 est montée sur la flèche du châssis 4 de la remorque. Après déploiement des bracons, ceux-ci forment, avec la flèche, un triangle sensiblement équilatéral.In Figures 1 and 5, the trailer designated by the reference 1, carries a telescopic pylon 2 consisting of elements 2a, 2b, 2c, 2d, 2e, 2f. The mast supports for example a parabolic antenna 3, the head load can be arbitrary with a limit of 350 kgs, for example. The element 2a rests on the trailer 1. It has a frame 4 carried by two wheels 5. It rests on the ground, on the one hand by a shoe 6 and on the other hand by two struts 7 in triangulated profile. , pivotally mounted each around an axis 8 inclined relative to the vertical. Thus, after deployment, they automatically come into contact with the ground. The end of the struts 7 rests on the ground by pads 9. The pads support automatic coils 10, advantageously of the type described in patent n ° 86 01 558 carrying the shrouds 11. As described in this patent, each of the coils comprises, coiled, a guy 11 whose one end is connected to the upper part of the upper element 2f. A third coil 10 is mounted on the boom of the chassis 4 of the trailer. After deployment of the bracons, these form, with the arrow, a substantially equilateral triangle.

Conformément à une caractéristique de l'invention, le mât ne repose pas sur le sol, mais est porté par le châssis 4 de la remorque qui, lui-même, repose sur le sol par le patin 6 et par les patins 9 (dont un seul apparaît sur la figure 1). Des haubans 12 restent à poste fixe sur le mât, qu'il soit déplié ou replié, sans aucun outillage pour leur tension, cette tension pouvant être réglée à la main par des tendeurs 13.According to a characteristic of the invention, the mast does not rest on the ground, but is carried by the chassis 4 of the trailer which, itself, rests on the ground by the pad 6 and by the pads 9 (including one only appears in Figure 1). Guy lines 12 remain at a fixed position on the mast, whether it is unfolded or folded, without any tools for their tension, this tension being adjustable by hand by tensioners 13.

Selon le mode d'exploitation, les trois bobines automatiques 10 peuvent être désolidarisées des bracons et du support de la remorque pour être fixées à une distance d'environ 15 mètres de la remorque. A ce moment, la stabilité du mât est assurée pour des vents pouvant aller jusqu'à 160 km/heure. Il fallait, dans les pylônes connus, utiliser un nombre bien supérieur de bobines, et par exemple 13, pour obtenir la même stabilité.According to the operating mode, the three automatic reels 10 can be detached from the struts and from the trailer support to be fixed at a distance of approximately 15 meters from the trailer. At this time, mast stability is ensured for winds of up to 160 km / hour. It was necessary, in the known pylons, to use a much higher number of coils, for example 13, to obtain the same stability.

Sur la figure 2 est représenté le mât télescopique en position repliée et basculée sur la remorque 1. On y retrouve les éléments précédemment décrits et l'on voit que les haubans 11 ont été repliés sur les bobines 10, la disposition des poulies 14 permettant de garder les haubans dans leur gorge, sans avoir à les fixer.In Figure 2 is shown the telescopic mast in the folded and tilted position on the trailer 1. There are the elements described above and we see that the shrouds 11 have been folded over the reels 10, the arrangement of the pulleys 14 allowing keep the shrouds in their throats, without having to fix them.

Comme celà apparaît plus en détail sur la figure 3, l'élément inférieur 2a du pylône est monté pivotant autour d'un axe 15, ce pivotement étant obtenu par action sur deux vérins hydrauliques 16 dont un seul apparaît sur la figure. Lesdits vérins travaillent en poussée alors que, primitivement, on tirait sur l'élément inférieur pour le faire basculer.As shown in more detail in Figure 3, the lower element 2a of the pylon is pivotally mounted about an axis 15, this pivoting being obtained by action on two hydraulic cylinders 16 of which only one appears in the figure. Said jacks work in thrust whereas, originally, the lower element was pulled to make it tilt.

La figure 4 représente une vue de détail du mât en position d'érection, et l'on voit sur cette figure, que les éléments du mât 2 sont constitués par des poutres en treillis afin de diminuer la résistance au vent et le poids, ces poutres présentant une section triangulaire. Dans chaque angle de la section sont disposés deux montants parallèles 17, 18, servant de guidage à l'élément supérieur, de manière à ce que chacun des éléments soit guidé sur toute sa hauteur, rigoureusement, ce qui évite la possibilité de coïncement lors de l'érection ou lors du redéploiement du mât.FIG. 4 represents a detailed view of the mast in the erection position, and it can be seen in this figure, that the elements of the mast 2 are constituted by lattice beams in order to reduce the wind resistance and the weight, these beams having a triangular section. In each corner of the section are arranged two parallel uprights 17, 18, serving as a guide for the upper element, so that each of the elements is guided over its entire height, rigorously, which avoids the possibility of overlapping during erection or during the redeployment of the mast.

Le mode d'exploitation d'un mât selon l'invention est le suivant. Dans un premier temps on monte l'antenne 3 et les aériens, avant basculement de l'ensemble, c'est-à-dire au sol. Puis, l'ouverture des bracons semi-automatiques assure la mise en niveau et la stabilité de l'ensemble. Les bracons sont alors verrouillés et mis en tension. Le basculement de l'élément inférieur 2a par les vérins 16 de préférence hydrauliques, commandés d'un poste situé soit dans le véhicule tracteur, soit sur la remorque. Le mât peut alors être élevé par le vérin de levage (non représenté) et les haubans 11 restent soit attachés à la remorque et aux bracons, soit sont éloignés de celle-ci grâce aux bobines 10 en cas d'intempéries. La charge en tête peut atteindre 350 kg et la mise en place est très rapide et par exemple, un seul homme peut ériger et haubanner le mât en 10 minutes environ.The operating mode of a mast according to the invention is as follows. Firstly, the antenna 3 and the aerials are mounted, before the assembly tilts, that is to say on the ground. Then, the opening of the semi-automatic bracons ensures the leveling and the stability of the whole. The arms are then locked and tensioned. The tilting of the lower element 2a by the preferably hydraulic jacks 16, controlled from a station located either in the towing vehicle or on the trailer. The mast can then be raised by the lifting cylinder (not shown) and the guy lines 11 remain either attached to the trailer and to the struts, or are moved away from the latter by means of the coils 10 in the event of bad weather. The head load can reach 350 kg and the set up is very quick and for example, one man can erect and stay the mast in about 10 minutes.

Claims (5)

1. Mât télescopique auto-élévateur comprenant des éléments télescopiques de section décroissante du bas vers le haut, au moins un vérin de basculement de l'élément inférieur et au moins un vérin d'élévation, intérieur à l'élément de base, les éléments étant reliés entre eux par des câbles passant sur des poulies, portés par une remorque, caractérisé en ce que la remorque (1) est munie de deux bracons (7) montés pivotants autour d'axes (8) inclinés par rapport à la verticale.1. Self-lifting telescopic mast comprising telescopic elements of decreasing section from bottom to top, at least one tilting cylinder for the lower element and at least one lifting cylinder, inside the basic element, the elements being interconnected by cables passing over pulleys, carried by a trailer, characterized in that the trailer (1) is provided with two struts (7) pivotally mounted around axes (8) inclined relative to the vertical. 2. Mât selon la revendication 1, caractérisé en ce que l'élément inférieur (2a) est porté par le châssis (4) de la remorque formant console.2. Mast according to claim 1, characterized in that the lower element (2a) is carried by the chassis (4) of the trailer forming a console. 3. Mât selon l'une des revendications 1 ou 2, caractérisé en ce que des bobines automatiques (10) sont montées de manière amovible sur les bracons (7) et sur la flèche du châssis (4) de la remorque (1).3. Mast according to one of claims 1 or 2, characterized in that automatic coils (10) are removably mounted on the struts (7) and on the boom of the chassis (4) of the trailer (1). 4. Mât selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments (2a à 2f) sont constitués par des treillis dans chacun des angles desquels sont prévues deux membrures (17, 18) servant de guidage à l'élément supérieur.4. Mast according to any one of the preceding claims, characterized in that the elements (2a to 2f) consist of trellis in each of the angles of which are provided two frames (17, 18) serving as a guide for the upper element . 5. Mât selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément inférieur (2a) est monté pivotant autour d'un axe (15) sur le châssis (4) de la remorque et est manoeuvré en poussée par deux vérins hydrauliques (16).5. Mast according to any one of the preceding claims, characterized in that the lower element (2a) is pivotally mounted about an axis (15) on the chassis (4) of the trailer and is maneuvered in thrust by two hydraulic cylinders (16).
EP88401540A 1987-06-22 1988-06-21 Self-erecting telescoping mast Expired - Lifetime EP0296957B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401540T ATE80197T1 (en) 1987-06-22 1988-06-21 SELF-ERECTING TELESCOPIC MAST.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8708703 1987-06-22
FR8708703A FR2616830B1 (en) 1987-06-22 1987-06-22 SELF-LIFTING TELESCOPIC MAST

Publications (3)

Publication Number Publication Date
EP0296957A2 true EP0296957A2 (en) 1988-12-28
EP0296957A3 EP0296957A3 (en) 1989-06-07
EP0296957B1 EP0296957B1 (en) 1992-09-02

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Application Number Title Priority Date Filing Date
EP88401540A Expired - Lifetime EP0296957B1 (en) 1987-06-22 1988-06-21 Self-erecting telescoping mast

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EP (1) EP0296957B1 (en)
AT (1) ATE80197T1 (en)
DE (1) DE3874236T2 (en)
ES (1) ES2035335T3 (en)
FR (1) FR2616830B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942537A (en) * 1988-12-15 1990-07-17 Fiber Materials, Inc. System for assembling and disassembling a mast
AT395627B (en) * 1989-10-17 1993-02-25 Waagner Biro Ag Extensible system
EP1028482A2 (en) 1999-02-11 2000-08-16 Patria Vehicles Oy Telescopic mast system
FR2850695A1 (en) * 2003-02-04 2004-08-06 Jean Louis Castelli Foldable antenna mast for use in hertzian relay installation, has detachable support block with three horizontal legs and configured to integrate two conical split rings, where support enable post to be folded along six distinct axes
WO2015032495A3 (en) * 2013-09-04 2015-05-07 Peter Kelemen Jacket for a wind turbine and method for the production of said jacket
CN108661409A (en) * 2018-07-05 2018-10-16 广东电网有限责任公司 Anti-reversing device and electric pole

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001606A (en) * 2010-11-25 2011-04-06 甘肃省电力公司兰州超高压输变电公司 Insulating lifting device

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Publication number Priority date Publication date Assignee Title
US1325053A (en) * 1919-12-16 Telescoping tower
GB760067A (en) * 1954-06-08 1956-10-31 Eagle Eng Co Ltd Improvements in or connected with telescopically extensible towers
DE1559301B1 (en) * 1963-07-15 1970-10-01 Ver Flugtechnische Werke Telescopic mast
FR2422792A1 (en) * 1978-04-14 1979-11-09 Icpp Self-elevating radio mast - has telescopic lattice structure pivoting about trailer for extension by winch-operated cable hoist
FR2476727A2 (en) * 1979-07-30 1981-08-28 Icpp Automatically raised mobile pylon on trailer - has battery operated hydraulic pump providing fluid pressure in jack to raise telescopic sections

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325053A (en) * 1919-12-16 Telescoping tower
GB760067A (en) * 1954-06-08 1956-10-31 Eagle Eng Co Ltd Improvements in or connected with telescopically extensible towers
DE1559301B1 (en) * 1963-07-15 1970-10-01 Ver Flugtechnische Werke Telescopic mast
FR2422792A1 (en) * 1978-04-14 1979-11-09 Icpp Self-elevating radio mast - has telescopic lattice structure pivoting about trailer for extension by winch-operated cable hoist
FR2476727A2 (en) * 1979-07-30 1981-08-28 Icpp Automatically raised mobile pylon on trailer - has battery operated hydraulic pump providing fluid pressure in jack to raise telescopic sections

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942537A (en) * 1988-12-15 1990-07-17 Fiber Materials, Inc. System for assembling and disassembling a mast
AT395627B (en) * 1989-10-17 1993-02-25 Waagner Biro Ag Extensible system
EP1028482A2 (en) 1999-02-11 2000-08-16 Patria Vehicles Oy Telescopic mast system
EP1028482A3 (en) * 1999-02-11 2002-02-20 Patria Vehicles Oy Telescopic mast system
FR2850695A1 (en) * 2003-02-04 2004-08-06 Jean Louis Castelli Foldable antenna mast for use in hertzian relay installation, has detachable support block with three horizontal legs and configured to integrate two conical split rings, where support enable post to be folded along six distinct axes
WO2015032495A3 (en) * 2013-09-04 2015-05-07 Peter Kelemen Jacket for a wind turbine and method for the production of said jacket
CN108661409A (en) * 2018-07-05 2018-10-16 广东电网有限责任公司 Anti-reversing device and electric pole

Also Published As

Publication number Publication date
DE3874236D1 (en) 1992-10-08
ATE80197T1 (en) 1992-09-15
FR2616830A1 (en) 1988-12-23
ES2035335T3 (en) 1993-04-16
FR2616830B1 (en) 1993-06-18
EP0296957B1 (en) 1992-09-02
DE3874236T2 (en) 1993-04-01
EP0296957A3 (en) 1989-06-07

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