EP0114377B1 - Procédé d'opération d'un mât télescopique ainsi qu'un mât approprié pour la mise en oeuvre du procédé - Google Patents

Procédé d'opération d'un mât télescopique ainsi qu'un mât approprié pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0114377B1
EP0114377B1 EP83112964A EP83112964A EP0114377B1 EP 0114377 B1 EP0114377 B1 EP 0114377B1 EP 83112964 A EP83112964 A EP 83112964A EP 83112964 A EP83112964 A EP 83112964A EP 0114377 B1 EP0114377 B1 EP 0114377B1
Authority
EP
European Patent Office
Prior art keywords
mast
iii
plenum chambers
telescopic
individual
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
EP83112964A
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German (de)
English (en)
Other versions
EP0114377A1 (fr
Inventor
Wolfgang Thieme
Franz-Dieter Ing. Grad. Mangold
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.)
BIG LIFT Maschinenbau- und Vertriebs GmbH
Original Assignee
BIG LIFT Maschinenbau- und Vertriebs GmbH
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 BIG LIFT Maschinenbau- und Vertriebs GmbH filed Critical BIG LIFT Maschinenbau- und Vertriebs GmbH
Priority to AT83112964T priority Critical patent/ATE23027T1/de
Publication of EP0114377A1 publication Critical patent/EP0114377A1/fr
Application granted granted Critical
Publication of EP0114377B1 publication Critical patent/EP0114377B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • German utility model 7629017 has made a pneumatic, adjustable mast known, the trains of which are formed from two telescopic tubes and are each closed at the bottom by an open piston equipped with air ducts.
  • the air ducts through the individual pistons form interchangeable orifices of different cross-sections, through which the time sequence of the lifting and lowering movements can be influenced.
  • the mast levels can be at about the same time, d. H. can be extended or retracted in a continuous relationship to one another or step by step with short, accelerated path overshoots.
  • This document calls an inflatable bellows, made of flexible, airtight material, which carries a headlight platform in its end position.
  • US-A 2 369 534 describes a mast which is pulled up in sections by means of two lifting columns arranged axially parallel to it on a base plate, over the hooks associated with each section with hanging gear, by means of ropes guided over rollers and anchored in the end position.
  • the mast does not correspond to the concept described at the beginning and cannot be regarded as a mobile, operational antenna mast.
  • the solution to this problem according to the invention provides that the compressed air is passed in parallel or in an independent, adjustable order into the volume chambers, each consisting of at least two telescopic tubes that are guided one inside the other, via valves, that the piston of the following chamber, or the end cover of the end telescopic tube, closes the individual Telescopic pulls of the volume chambers arranged below each other pulls apart so that the pressure in the individual volume chambers arranged one above the other is adjusted from bottom to top, falling in stages, so that the minimum height of the individual pressure stages is determined in each case by the residual weight of the telescopic cables which are assigned to each other, Piston rings and limit stops each formed volume chambers are determined when the mast is in the extended position, and that the return stroke of the mast into the starting position or in intermediate positions by opening or opening and closing the individual valves assigned to volume chambers.
  • the setting of Intermediate positions are particularly important for the uppermost volume chamber, since it facilitates the alignment of the antenna.
  • the independent feeding of the compressed air into the individual volume chambers in an adjustable order ensures that the entire mast does not collapse suddenly in the event of leaks in the individual telescopic cables or in the event of valve damage, but that the damage remains restricted to only one chamber and is temporarily caused by additional feeding in a chamber is usually taken into account and can be repaired on a case-by-case basis. This applies in particular to bullet damage.
  • Extending the mast according to the pull-out method described reduces the demands on the guidance of the telescopic parts into one another, since any tilting effects, for example due to wind load, are compensated for more easily in pulling operation than in printing operation.
  • the adjustment of the mast height in intermediate stages is possible without restriction in practice; reference is made to the preliminary remark.
  • the volume chambers be extended one after the other from bottom to top, and after the end of a single hoist - before initiating the next hoist - the end position corresponding to the stop limits is secured by bracing to the installation level.
  • a mast training which is particularly suitable for carrying out this operating method assumes that the separate air supply and execution into or from the individual chambers takes place via valves which open via feed lines in the foot part or in the region thereof.
  • the stretch dimension at least corresponds to the dimension of the lifting height of the first volume chamber or the sum of the lifting heights of the overall upstream volume chambers.
  • the stretchable lines can be, for example, folded pressure hoses.
  • the stretchable lines required for supplying the compressed air to the volume chambers are arranged outside the volume chambers underneath.
  • the stretchable lines are coiled or zigzag-shaped hose or elastic pipes, which have the characteristic of a tension spring.
  • the stretchable lines can each be hose lines of sufficient stretching length, which can be arranged in any way within each chamber.
  • the stretchable lines are separate telescopic cables formed from pipes, each with a sufficient stretching length.
  • the individual telescopic cables are mutually designed, secured against rotation, and that the mast is preferably made of light metal telescopic cables in the interest of high mobility.
  • the mast 1 consists of the mast members 2.1, 2.2 and 2.3, these corresponding to the volume chambers I, 11 and 111 formed from two telescopic tubes Ib / lc, Ilb / llc, Illb / lllc.
  • the telescopic tube Ib is closed at the bottom by the foot part la and its height by the inward direction impact limit le determined, the through opening corresponding to the diameter of the telescopic tube Ic through the stop limit le.
  • the piston IIa carrying the telescopic tube IIb is displaceably arranged and the height of the telescopic tube Ilb is determined by the stop limitation Ile.
  • the telescopic tube Ilc In the telescopic tube Ilb, the telescopic tube Ilc is delimited and guided at the bottom, while the length of the telescopic tube Ilc is determined by the limit stop Ilf.
  • the telescopic tube IIc is guided by the piston ring Ild.
  • the telescopic tube IIIb is displaceably guided by the piston Illa, the length of which is determined by the limit stop Ille.
  • the telescopic tube IIIc is guided through the piston ring IIId, this tube forming the mast tip to which a cable link 3.2 is attached.
  • the volume chamber II is fed and pulled apart by the valve 1.2 and the feed line 1.2.1 via the hose coil 11.2 and the open passage IIg arranged in the piston Ila.
  • Another hose coil III.3 which is connected via the valve 1.3 and via the supply line 1.3.1 of the air supply, leads through the closed, further passage IIh through the volume chamber II and through the passage IIIg arranged in the lilac and causes the shipment thereof Volume chamber III formed from IIIb and IIIc into its end position.
  • the volume chambers I, II and III are extended one after the other, whereby in the end position of each mast link 2.1, 2.2 and 2.3, before pulling out the next telescopic hoist, the end position is braced with the flat surface by means of ropes or chains using ropes or chains 2.11, 2.21 and 2.31 will.
  • an internal mast tensioning system is also provided.
  • the last telescopic tube IIIc in the case of this example, is connected to three fold-out cantilevers 3.1 provided with rope linkages, and between these, the rope linkage at the mast tip 3.2 and the rope linkages at the mast base 3.3, tensioning mechanisms 3 are formed.
  • the mast 1 is tensioned in itself, essentially axially directed, regardless of its fixation to the formation.
  • volume chambers I, II and III forming the individual mast members 2.1, 2.2 and 2.3 can be actuated independently, but as a rule the individual volume chambers are extended one after the other from bottom to top and in their respective end positions are secured to the formation by means of guy lines 2.11, 2.21 and 2.31.
  • the pressure in the individual volume chambers I, II and III is set to decrease in stages from bottom to top, the minimum height of the pressure stages being determined in each case by the residual weight of the downstream telescopic cables.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
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  • Actuator (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Blast Furnaces (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (10)

1. Procédé d'opération d'un mât télescopique, en particulier d'un mât d'antenne, l'extension duquel est causée par l'air comprimé affluant à une pression finale préréglable dans des chambres de volume variable, et le retrait duquel dans la position de départ ou dans des positions intermédiaires est permis à cause de section transversale de passage réglable à vélocité réglable d'une soupape alimentaire séparé de l'alimentation de l'air comprimé, caractérisé en ce que
a) l'air comprimé est alimenté par l'intermédiaire des soupapes (1.1, 1.2, 1.3) en parallèle ou dans l'ordre indépendant et réglable dans les chambres à volume (I, II, III...) composées chaque fois au moins de deux tubes (Ib/Ic, IIb/IIc, IIIb/IIIc) télescopiques et s'emboîtant, que
b) le piston (IIa/IIIa) chaque fois limitant en bas, des chambres suite (Ib, IIb, Illb) ou le bouchon du tube final télescopique (IIIc) tire les structures télescopiques individuelles des chambres à volume (l, II, III...) disposées chaque fois là- dessous, que
c) la pression dans les chambres à volume (I, II, III...) individuelles superposées est réglée de bas en haut, tombant en gradins, que
d) les degrés de pression individuels dans leur niveau minimum chaque fois sont définis par le poids résiduel des chambres à volume (I, II, III...) chaque fois formées par les structures télescopiques associées l'un à l'autre, des anneaux à piston et des limites de butée en position étendue du mât (1), et que
e) le retrait du mât (1) dans la position de départ ou dans des positions intermédiaires est effectué en ouvrant ou en ouvrant et fermant des soupapes (1.1, 1.2, 1.3) associées aux chambres à volume individuelles (I, II, III...).
2. Procédé selon la revendication 1, caractérisé en ce que les chambres à volume (I, II, III...) étendues de bas en haut, après chaque exécution d'une course unique - avant l'initiation de la course prochaine -sont fixées dans leur position finale correspondante aux limites de butée (If, Ilf, Ille), relatif au plan d'installation, par l'intermédiaire des supports d'antenne (2.11, 2.21, 2.31).
3. Formation du mât pour la mise en oeuvre du procédé d'opération selon la revendication 1, caractérisée en ce que des conduites (11.2, 111.3) pour l'alimentation de l'air comprimé - vue de base (la) - à la seconde et chaque suivante chambre de volume (I, Il, III...) formée dans une manière communicante par des structures télescopiques (Ib/Ic, IIb/IIc, Illb/Illc...) sont pourvues dans ces chambres, les conduites étant isolées contre la (les) chambre(s) précédente(s), le degré d'extension desquelles correspondant au moins au degré du niveau de course de la première chambre à volume ou à la somme des niveaux de course des chambres entièrement disposées préalablement.
4. Formation selon la revendication 3, caractérisée en ce que les conduites extensibles requises pour l'alimentation de l'air comprimé aux chambres à volume sont pourvues extérieurement des chambres à volume disposées au-dessous de celles-ci.
5. Formation selon les revendications 1 et 4, caractérisée en ce que les conduites (11.2, III.3...) extensibles sont des tuyaux ou conduites flexibles sous forme d'hélice ou en zigzag ayant environ la caractéristique d'un ressort de traction.
6. Formation selon les revendications 3 et 4, caractérisée en ce que les conduites extensibles (11.2, 111.3) sont des tuyaux flexibles ayant chaque fois une longueur d'extension suffisante.
7. Formation selon les revendications 3 et 4, caractérisée en ce que les conduites extensibles (11.2, 111.3) sont des structures télescopiques formées par des tubes ayant chaque fois une longueur d'extension suffisante.
8. Formation du mât pour la mise en oeuvre du procédé d'opération selon les revendications 1 et 2, caractérisée en ce
qu'au moins trois bras en porte-à-faux (3, 1) sont articulés à la structure télescopique (Illb, Illc) dernière de la chambre à volume final formant le bout pointu du mât (1) dans une manière parallèle à l'axe de celle-ci, les bras en porte-à-faux en position étendue de cette structure télescopique (Illb, IIIc) étant ajustés par un maximum d'environ 90° à l'axe du mât et basculant en réponse à gravité, et que les extrémités articulées de ces bras (3.1), le câble articulé au bout pointu du mât (1) et les câbles articulés (3.3) dans la région de base du mât (1) sont reliés par l'intermédiaire des moyens de tension (3).
9. Formation selon la revendication 3, caractérisée en ce que les structures télescopiques (Ib/lc, IIb/IIc, IIIb/IIIc) individuelles sont formées sous forme résistante à la torsion.
10. Formation selon la revendication 3, caractérisée en ce que les structures télescopiques (Ib/lc, IIb/IIc, IIIb/IIIc) sont fabriquées de métal, préférablement de métal léger.
EP83112964A 1982-12-28 1983-12-22 Procédé d'opération d'un mât télescopique ainsi qu'un mât approprié pour la mise en oeuvre du procédé Expired EP0114377B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112964T ATE23027T1 (de) 1982-12-28 1983-12-22 Verfahren zum betrieb eines teleskopmastes sowie einen zur ausuebung dieses verfahrens geeigneten mast.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3248288 1982-12-28
DE3248288 1982-12-28

Publications (2)

Publication Number Publication Date
EP0114377A1 EP0114377A1 (fr) 1984-08-01
EP0114377B1 true EP0114377B1 (fr) 1986-10-22

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ID=6181958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112964A Expired EP0114377B1 (fr) 1982-12-28 1983-12-22 Procédé d'opération d'un mât télescopique ainsi qu'un mât approprié pour la mise en oeuvre du procédé

Country Status (3)

Country Link
EP (1) EP0114377B1 (fr)
AT (1) ATE23027T1 (fr)
DE (1) DE3367080D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8661744B2 (en) * 2007-04-16 2014-03-04 Falck Schmidt Defence Systems A/S Telescoping mast
CN105889167A (zh) * 2014-12-12 2016-08-24 唐维 自锁式多级液压油缸

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2406862B (en) * 2003-10-09 2007-08-01 Janile Ltd Extendible mast

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13648C (de) * J. GAST in Berlin, Greifswalderstrafse 22 Neuerungen an Eisenbahn Signalen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369534A (en) * 1943-05-29 1945-02-13 Cohen Harold Tower or mast
US2872904A (en) * 1953-05-18 1959-02-10 Beemt Jan H Van Den Telescoping mast
US2849011A (en) * 1957-09-26 1958-08-26 Birdair Structures Air inflated tower or the like
US3721054A (en) * 1971-09-07 1973-03-20 Bucyrus Erie Co Light weight telescoping boom
DE2626606A1 (de) * 1976-06-14 1977-12-22 Karl Zaengl Druckzylinder, insbesondere auch zur betaetigung von reifen-vulkanisierpressen
DE7629017U1 (de) * 1976-09-17 1977-04-07 Rupprecht, Walter, 6464 Linsengericht Teleskopantennenmast

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13648C (de) * J. GAST in Berlin, Greifswalderstrafse 22 Neuerungen an Eisenbahn Signalen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8661744B2 (en) * 2007-04-16 2014-03-04 Falck Schmidt Defence Systems A/S Telescoping mast
CN105889167A (zh) * 2014-12-12 2016-08-24 唐维 自锁式多级液压油缸

Also Published As

Publication number Publication date
DE3367080D1 (en) 1986-11-27
ATE23027T1 (de) 1986-11-15
EP0114377A1 (fr) 1984-08-01

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