EP0169104B1 - Device for raising a mast, and mast for this device - Google Patents

Device for raising a mast, and mast for this device Download PDF

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Publication number
EP0169104B1
EP0169104B1 EP85401144A EP85401144A EP0169104B1 EP 0169104 B1 EP0169104 B1 EP 0169104B1 EP 85401144 A EP85401144 A EP 85401144A EP 85401144 A EP85401144 A EP 85401144A EP 0169104 B1 EP0169104 B1 EP 0169104B1
Authority
EP
European Patent Office
Prior art keywords
mast
lever
base
pin
shoe
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.)
Expired
Application number
EP85401144A
Other languages
German (de)
French (fr)
Other versions
EP0169104A1 (en
Inventor
Jean Paul Perek
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.)
Laboratoire D'etudes Et De Recherches Chimiques Lerc Sa
Original Assignee
Laboratoire D'etudes Et De Recherches Chimiques Lerc 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 Laboratoire D'etudes Et De Recherches Chimiques Lerc Sa filed Critical Laboratoire D'etudes Et De Recherches Chimiques Lerc Sa
Priority to AT85401144T priority Critical patent/ATE28848T1/en
Publication of EP0169104A1 publication Critical patent/EP0169104A1/en
Application granted granted Critical
Publication of EP0169104B1 publication Critical patent/EP0169104B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
    • 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
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like

Definitions

  • the invention relates to a mast lifting device and to the mast raised using such a device.
  • the mast is first lying on the ground to be equipped with antennas and guy cables.
  • this arm is generally provided at its lower end with a simple yoke which covers the mast or its base laterally and the yoke of its shoe anchored to the ground to benefit from the axis of articulation of this base when accompanying the mast during its tilting.
  • the mast Under the combined effect of the tensile force and the weight of the antennas associated with its top, the mast undergoes a deformation which can even, given its intensity, become permanent, or even lead to its rupture.
  • a result which the invention aims to obtain is a device of the aforementioned type, which facilitates the lifting of a mast by preventing any permanent deformation liable to be imparted to it by the load which it supports.
  • Another result which the invention aims to obtain is a device of the aforementioned type, to which it is simple to fix the cables connected to the mast and to the winch.
  • the subject of the invention is a lifting device of the aforementioned type, in particular characterized in that it comprises means for folding the lever around an axis which is orthogonal to the axis of articulation of the base. of the said lever.
  • a mast 1 is first of all lying on the ground to be equipped with its antenna 3 and to be associated with the articulation axis 4 of a yoke 5 carried by a shoe 6 anchored on the ground 2.
  • At least one cable 7, 8 which, by one end 9, 10, is fixed at a certain distance from the base of the mast and which, by its other end 11, 12, is fixed in head 13 of a lever arm 14 perpendicular to the axis of the mast and the base of which has a yoke 15 covering the mast laterally so as to articulate with it around the axis 4 of the yoke 5 of the shoe 6 so as to be able to be immobilized relative to the mast.
  • the lever is not operated by hand but by a traction means such as a winch 16 which, with its cable 17 is interposed between the head 13 of the lever 14 and a point 18 for anchoring to the ground located in the extension axial of the mast and the side of its base.
  • a traction means such as a winch 16 which, with its cable 17 is interposed between the head 13 of the lever 14 and a point 18 for anchoring to the ground located in the extension axial of the mast and the side of its base.
  • the actuation of the winch 16 then calls the lever which, by the cables 7, 8, gradually raises the mast.
  • the latter is provided with means 19, 20, 21 for folding the lever 14 around an axis 20 which is orthogonal to the axis 4 of articulation of the base of the said lever 14.
  • the arm 23 can, during assembly, fold back towards the ground, laterally to the mast 1 which facilitates access to the head of the lever.
  • this fixing will be done with a slight tension.
  • the orthogonal axis 20 is located at a sufficient distance from the axis 4 of articulation on the shoe 6. Therefore, before lifting the mast, raising the lever 14 moves its head away from its base, which will stretch the cable connecting the head of the mast and will automatically accentuate or cause the pre-bending of the mast (Figure 6).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Aerials (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Soil Working Implements (AREA)
  • Earth Drilling (AREA)

Abstract

The invention relates to a device for raising a mast from a ground lowered position to a raised position at which it is supported on a base. The lower end of the mast is supported on the base by a connecting link comprising an upper fork and a lower fork joined by a link. The lower fork is fixed relative to the mast, but can be articulated with the mast about a mast-raising axis. The upper fork of the connecting link is connected to the lower part of an arm of a lever along a folding axis which axis is orthogonal to the mast-raising axis.

Description

L'invention se rapporte à un dispositif de relevage d'un mât et au mât relevé à l'aide d'un tel dispositif.The invention relates to a mast lifting device and to the mast raised using such a device.

Elle se rapporte également aux mâts pourvus de ce dispositif.It also relates to masts provided with this device.

Elle s'applique plus particulièrement mais non exclusivement aux mâts d'antennes émettrices et/ou réceptrices provisoires utilisées à des fins tant militaires que civiles.It applies more particularly but not exclusively to the masts of transmitting and / or provisional receiving antennas used for both military and civil purposes.

Pour disposer d'antennes provisoires, transportables et de mise en oeuvre facile et rapide, on utilise de plus en plus pour les supporter des mâts légers en matériau composite, tel des fibres associées à une résine.To have temporary antennas, transportable and easy and quick to use, it is increasingly used to support light masts of composite material, such as fibers associated with a resin.

Lors de leur utilisations, ils sont maintenus verticaux par un haubanage.When in use, they are kept vertical by a guy line.

Sur les lieux d'utilisation, le mât est tout d'abord couché au sol pour être équipé des antennes et des cables de haubanage.At the places of use, the mast is first lying on the ground to be equipped with antennas and guy cables.

Pour pouvoir être relevé, celui-ci est classiquement pourvu, d'une part, d'une embase articulée autour d'un axe horizontal traversant la dite embase et d'un sabot ancré dans le sol et, d'autre part, d'au moins un cable fixé près de la tête du mât et sur lequel depuis la base de ce mât, on exerce une traction.To be able to be raised, it is conventionally provided, on the one hand, with a base articulated around a horizontal axis passing through said base and with a shoe anchored in the ground and, on the other hand, at least one cable fixed near the head of the mast and on which from the base of this mast is exerted a traction.

Cependant, au début du levage, le cordage est sensiblement parallèle au mât et, de ce fait, pour obtenir un couple suffisant au levage, il faut exercer une force de traction très importante. Pour remédier à cet inconvénient, perpendiculairement à l'axe du mât et dans son plan de basculement, on associe a son embase un bras de levier à l'extrémité supérieure duquel on fixe, d'une part, l'une des extrémités du cable dont l'autre extrémité est fixée sensiblement à mi hauteur du mât et, d'autre part, l'une des extrémités d'un cable dont l'autre extrémité est saisie par un moyen de traction tel un treuil.However, at the start of lifting, the rope is substantially parallel to the mast and, therefore, to obtain sufficient torque when lifting, it is necessary to exert a very large pulling force. To overcome this drawback, perpendicular to the axis of the mast and in its tilting plane, there is associated with its base a lever arm at the upper end of which one fixes, on the one hand, one of the ends of the cable the other end of which is fixed approximately halfway up the mast and, on the other hand, one of the ends of a cable, the other end of which is gripped by a traction means such as a winch.

Pour être associé à l'embase du mât, ce bras est généralement pourvu à son extrémité basse d'une simple chape qui coiffe latéralement le mât ou son embase et la chape de son sabot ancré au sol pour bénéficier de l'axe d'articulation de cette embase lors de son accompagnement du mât pendant son basculement.To be associated with the base of the mast, this arm is generally provided at its lower end with a simple yoke which covers the mast or its base laterally and the yoke of its shoe anchored to the ground to benefit from the axis of articulation of this base when accompanying the mast during its tilting.

Sous l'effet combiné de l'effort de traction et du poids des antennes associées à son sommet, le mât subit une déformation qui peut même, vue son intensité, devenir permanente, voire même conduire à sa rupture.Under the combined effect of the tensile force and the weight of the antennas associated with its top, the mast undergoes a deformation which can even, given its intensity, become permanent, or even lead to its rupture.

Par ailleurs, pour être efficace, un tel bras de levier doit avoir une longueur importante de l'ordre de plusieurs mètres, ce qui, malheureusement, reportant très haut le sommet du bras, rend mal aisé la fixation tant du cable relié au mât que celui relié au treuil.Furthermore, to be effective, such a lever arm must have a significant length of the order of several meters, which, unfortunately, deferring the top of the arm very high, makes it difficult to fix both the cable connected to the mast and the one connected to the winch.

Un résultat que l'invention vise à obtenir est un dispositif du type précité, qui facilite le relevage d'un mât en prévenant toute déformation permanente susceptible de lui être imprimée par la charge qu'il supporte.A result which the invention aims to obtain is a device of the aforementioned type, which facilitates the lifting of a mast by preventing any permanent deformation liable to be imparted to it by the load which it supports.

Un autre résultat que l'invention vise à obtenir est un dispositif du type précité, auquel il est simple de fixer les cables reliés au mât et au treuil.Another result which the invention aims to obtain is a device of the aforementioned type, to which it is simple to fix the cables connected to the mast and to the winch.

A cet effet, l'invention a pour objet un dispositif de relevage du type précité, notamment caractérisé en ce qu'il comprend des moyens de repliage du levier autour d'un axe qui est orthogonal à l'axe d'articulation de la base du dit levier.To this end, the subject of the invention is a lifting device of the aforementioned type, in particular characterized in that it comprises means for folding the lever around an axis which is orthogonal to the axis of articulation of the base. of the said lever.

Elle a également pour objet le mât pourvu de ce dispositif.It also relates to the mast provided with this device.

Elle sera bien comprise à l'aide de la description ci-après faite, à titre d'exemple non limitatif, en regard du dessin ci-annexé qui représente schématiquement:

  • - figure 1: vu en perspective, un mât relevé au moyen du dispositif de l'invention,
  • - figure 2: une vue de détail du dispositif,
  • - figures 3, 4 et 5: le mât couché au sol avant son précintrage en vues respectivement de dessus, de face et de profil,
  • - figures 6 et 7: le mât couché après son précintrage en vues respectivement de face et de profil.
It will be clearly understood with the aid of the description below, given by way of nonlimiting example, with reference to the attached drawing which schematically represents:
  • - Figure 1: seen in perspective, a mast raised using the device of the invention,
  • FIG. 2: a detailed view of the device,
  • - Figures 3, 4 and 5: the mast lying on the ground before pre-bending in top, front and side views respectively,
  • - Figures 6 and 7: the mast lying after pre-bending in front and side views respectively.

En se reportant au dessin, on voit qu'un mât 1 est tout d'abord couché au sol pour être équipé de son antenne 3 et être associé à l'axe d'articulation 4 d'une chape 5 portée par un sabot 6 ancré au sol 2.Referring to the drawing, we see that a mast 1 is first of all lying on the ground to be equipped with its antenna 3 and to be associated with the articulation axis 4 of a yoke 5 carried by a shoe 6 anchored on the ground 2.

Pour le relevage du mât, on agit sur au moins un cable 7, 8 qui, par une extrémité 9, 10, est fixé à une certaine distance de la base du mât et qui, par son autre extrémité 11, 12, est fixé en tête 13 d'un bras de levier 14 perpendiculaire à l'axe du mât et dont la base présente une chape 15 coiffant latéralement le mât pour s'articuler avec lui autour de l'axe 4 de la chape 5 du sabot 6 de manière à pouvoir être immobilisé par rapport au mât.For lifting the mast, one acts on at least one cable 7, 8 which, by one end 9, 10, is fixed at a certain distance from the base of the mast and which, by its other end 11, 12, is fixed in head 13 of a lever arm 14 perpendicular to the axis of the mast and the base of which has a yoke 15 covering the mast laterally so as to articulate with it around the axis 4 of the yoke 5 of the shoe 6 so as to be able to be immobilized relative to the mast.

Généralement, le levier n'est pas manoeuvré à la main mais par un moyen de traction tel un treuil 16 qui, avec son cable 17 est intercalé entre la tête 13 du levier 14 et un point 18 d'ancrage au sol situé dans le prolongement axial du mât et du côté de sa base.Generally, the lever is not operated by hand but by a traction means such as a winch 16 which, with its cable 17 is interposed between the head 13 of the lever 14 and a point 18 for anchoring to the ground located in the extension axial of the mast and the side of its base.

L'actionnement du treuil 16 appelle alors le levier qui, par les cables 7, 8, relève progressivement le mât.The actuation of the winch 16 then calls the lever which, by the cables 7, 8, gradually raises the mast.

Pour faciliter l'accès en tête du levier 14, celui-ci est pourvu de moyens 19, 20, 21 de repliage du levier 14 autour d'un axe 20 qui est orthogonal à l'axe 4 d'articulation de la base du dit levier 14.To facilitate access to the head of the lever 14, the latter is provided with means 19, 20, 21 for folding the lever 14 around an axis 20 which is orthogonal to the axis 4 of articulation of the base of the said lever 14.

Ces moyens 19 à 21 scindent alors le levier en deux parties 22, 23 dont, d'une part, forme une embase 22 dont une extrémité porte la chape 15 s'articulant sur le sabot et l'autre une chape 19 portant l'axe 20 de repliage et, d'autre part, un bras 23 dont la base porte une pièce 21 traversée par l'axe de repliage et dont la tête reçoit le cable relié au mât et, s'il y a, celui relié au moyen de traction.These means 19 to 21 then split the lever into two parts 22, 23 of which, on the one hand, forms a base 22 of which one end carries the yoke 15 articulated on the shoe and the other a yoke 19 carrying the axis 20 of folding and, on the other hand, an arm 23 whose base carries a part 21 crossed by the folding axis and whose head receives the cable connected to the mast and, if there is, that connected by means of traction.

De ce fait, le bras 23 peut, lors du montage, se replier vers le sol, latéralement au mât 1 ce qui facilite l'accès à la tête du levier.Therefore, the arm 23 can, during assembly, fold back towards the ground, laterally to the mast 1 which facilitates access to the head of the lever.

De préférence, cette fixation se fera avec une légère tension.Preferably, this fixing will be done with a slight tension.

Pour éviter que, sous l'effet combiné de la traction et du poids, le mât fléchisse dangereusement, l'axe orthogonal 20 est situé à une distance suffisante de l'axe 4 d'articulation sur le sabot 6. De ce fait, avant relevage du mât, le redressement du levier 14 éloigne sa tête de sa base, ce qui tendera le cable reliant la tête du mât et accentuera ou provoquera automatiquement le précintrage du mât (figure 6).To avoid that, under the combined effect of traction and weight, the mast bends dangerously, the orthogonal axis 20 is located at a sufficient distance from the axis 4 of articulation on the shoe 6. Therefore, before lifting the mast, raising the lever 14 moves its head away from its base, which will stretch the cable connecting the head of the mast and will automatically accentuate or cause the pre-bending of the mast (Figure 6).

Claims (4)

1. A device for raising a mast (1) lying flat on the ground (2) to be fitted with its antenna (3) and to be associated with the hinge pin (4) of a fork joint (5) supported by a shoe (6) anchored to the ground (2), which device comprises a lever (14) substantially perpendicular to the pin of the mast and the base of which has a fork joint (15) covering the mast (1) laterally to pivot with it about the pin (4) of the fork joint (5) of the shoe (6) so as to be able to be immobilised relative to the mast, at least one cable (7, 8) which is fixed at one end (9, 10) at a certain distance from the base of the mast and which, at its other end (11, 12) is fixed to the head (13) of the lever (14), an optional traction means (16) such as a winch and its cable (7) interposed between the head (13) of the lever (14) and an anchorage point (18) in the ground, arranged in the axial extension of the mast and the side of the base, the device being characterised in that it comprises means (19, 20, 21) for folding the lever (14) about a pin (20) which is orthogonal to the hinge pin (4) of the base of the said lever (14).
2. A device according to claim 1, characterised in that the lever (14) is divided into two parts (22, 23), of which one is a projection (22) one end of which supports the fork joint (15) pivoting on the shoe and the other end a fork joint (19) supporting the folding pin, and the other is an arm (23) the base of which supports a member (21) tnrough which the folding pin passes and the head of which receives the cables.
3. A device according to claim 1 or 2, characterised in that the orthogonal pin (20) is located at a sufficient distance from the hinge pin (4) on the shoe (6).
4. A mast characterised in that it is associated with a device according to any one of claims 1 to 3.
EP85401144A 1984-06-18 1985-06-11 Device for raising a mast, and mast for this device Expired EP0169104B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401144T ATE28848T1 (en) 1984-06-18 1985-06-11 DEVICE FOR RAISING A MAST AND MAST RELATED TO THAT DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8410002A FR2565953B1 (en) 1984-06-18 1984-06-18 DEVICE FOR LIFTING A MAT AND A MAT LIFT USING THE SAME
FR8410002 1984-06-18

Publications (2)

Publication Number Publication Date
EP0169104A1 EP0169104A1 (en) 1986-01-22
EP0169104B1 true EP0169104B1 (en) 1987-08-12

Family

ID=9305409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401144A Expired EP0169104B1 (en) 1984-06-18 1985-06-11 Device for raising a mast, and mast for this device

Country Status (5)

Country Link
US (1) US4677444A (en)
EP (1) EP0169104B1 (en)
AT (1) ATE28848T1 (en)
DE (1) DE3560444D1 (en)
FR (1) FR2565953B1 (en)

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US5446472A (en) * 1993-11-30 1995-08-29 Winegard Company System for raising and lowering an antenna
US5828347A (en) * 1996-06-18 1998-10-27 Spacehab Inc. Universal communications system for space applications
GB2371410B (en) * 2001-01-20 2004-11-24 Mott Macdonald Ltd Antenna system
CA2615206A1 (en) * 2005-07-15 2007-01-25 Aat Inc. A gin pole device for raising and lowering a tower
US8813436B2 (en) * 2008-02-29 2014-08-26 National Oilwell Varco, L.P. Pinned structural connection using a pin and plug arrangement
US9441423B2 (en) 2008-02-29 2016-09-13 National Oilwell Varco, L.P. Drilling rig masts and methods of assembly and erection
WO2010033935A2 (en) * 2008-09-19 2010-03-25 Atlas Copco Drilling Solutions Llc Pivotable tower for angled drilling
KR100945561B1 (en) 2009-08-20 2010-03-08 조일전기공업 주식회사 Method and apparatus for constructing pole of tower-type facilities
US8130168B1 (en) * 2009-10-13 2012-03-06 Pds Electronics, Inc. Apparatus for raising and lowering an antena
GB2486226A (en) * 2010-12-07 2012-06-13 Francis & Lewis Internat Ltd Tower erected by hinging and base
US9091125B2 (en) 2012-01-16 2015-07-28 National Oilwell Varco, L.P. Collapsible substructure for a mobile drilling rig
WO2014120163A1 (en) * 2013-01-30 2014-08-07 Hewlett-Packard Development Company, L.P. Antenna support system
WO2020005173A1 (en) * 2018-06-26 2020-01-02 Sa-Ra Enerji Insaat Ticaret Ve Sanayi Anonim Sirketi Connection apparatus for mounting a guyed mast.

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US2512151A (en) * 1949-07-01 1950-06-20 Harrison Willis Clark Fishing rod holder
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Also Published As

Publication number Publication date
FR2565953B1 (en) 1986-10-03
DE3560444D1 (en) 1987-09-17
EP0169104A1 (en) 1986-01-22
US4677444A (en) 1987-06-30
FR2565953A1 (en) 1985-12-20
ATE28848T1 (en) 1987-08-15

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