EP0235013B1 - Radome pliant - Google Patents

Radome pliant Download PDF

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Publication number
EP0235013B1
EP0235013B1 EP87400246A EP87400246A EP0235013B1 EP 0235013 B1 EP0235013 B1 EP 0235013B1 EP 87400246 A EP87400246 A EP 87400246A EP 87400246 A EP87400246 A EP 87400246A EP 0235013 B1 EP0235013 B1 EP 0235013B1
Authority
EP
European Patent Office
Prior art keywords
radome
bows
auxiliary
pivoting
principal
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 - Lifetime
Application number
EP87400246A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0235013A1 (fr
Inventor
Alain Bonneau
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.)
D'ETUDES TECHNIQUES ET D'ENTREPRISES GENER Ste
Original Assignee
SODETEG
D'ETUDES TECHNIQUES ET D'ENTREPRISES GENERALES SODETEG Ste
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 SODETEG, D'ETUDES TECHNIQUES ET D'ENTREPRISES GENERALES SODETEG Ste filed Critical SODETEG
Priority to AT87400246T priority Critical patent/ATE51669T1/de
Publication of EP0235013A1 publication Critical patent/EP0235013A1/fr
Application granted granted Critical
Publication of EP0235013B1 publication Critical patent/EP0235013B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • 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
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/34—Supporting means, e.g. frames
    • E04H15/36—Supporting means, e.g. frames arch-shaped type
    • E04H15/38—Supporting means, e.g. frames arch-shaped type expansible, e.g. extensible in a fan type manner
    • 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
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/203—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework supported by a non-inflatable structure or framework
    • 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
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/204—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework made from contiguous inflatable tubes

Definitions

  • the present invention relates to a folding radome intended for the protection of materials of relatively large dimensions such as telescopes, radars, telecommunications antennas ... and possibly military, industrial or sports installations against bad weather.
  • the window or opening which allows free communication with the external atmosphere usually comprises a fixed position or orientation, most often difficult to modify or even practically non-modifiable without rendering, in an expensive manner , mobile their installation itself.
  • radomes are often either radomes with a fixed metal frame or inflatable radomes without a metal frame. Radomes with a fixed metal frame are radomes provided with a solid fixed metal frame mounted on a rigid base and covered with a flexible impermeable envelope. These known radomes are resistant to bad weather and strong wind thanks to their solid metal frame.
  • the aim of the present invention is to avoid these drawbacks and makes it possible to produce an economical folding radome having a relatively simple, light structure, resistant to bad weather and strong winds, easy to be transported and installed, partially or totally retractable as desired, when use of the equipment it provides protection.
  • a weather protection radome having a rigid folding frame and an inflatable flexible cover formed of one or more parts, is characterized in that, to prevent any pocket formation, following an accidental localized deflation, this cover is made of double wall, and compartmentalized in spindles with lenticular cross section, independent of each other, and inflatable.
  • a radome, object of the invention is applicable to any scientific, military, industrial or sports installation.
  • a folding radome 1 according to an illustrated exemplary embodiment of the invention comprises a rigid folding frame 2 and a flexible cover or envelope 3 defining a part of a volume of revolution such as a portion of a sphere or an ellipsoid .
  • the folding radome 1 has a substantially hemispherical shape.
  • the component elements of a hemispherical folding radome 1 are applicable to the folding radomes of the invention having a shape of part of another volume of revolution.
  • the rigid folding frame 2 comprises (FIGS. 1, 2, 3) on the one hand two main arches 4, 5, and preferably one or more secondary arches 6, 7, 8, 9 pivoting at their ends around the horizontal axes respectively vertically and laterally offset in two diametrically opposite pivot supports 10, 11 (FIG. 5) and on the other hand in a direction orthogonal to these main and secondary arches one or preferably two auxiliary arches 12, 13 pivoting each at their ends around the horizontal axes which are located in two opposite articulation supports 14, 15 and 16, 17 at a height greater than those of the pivot axes of the main arches 4 and 5.
  • the main arches 4 , 5 secondary 6, 7, 8, 9 and auxiliary 12, 13 respectively take positions represented in figure 3 or partially represented in broken lines in l a figure 5.
  • the main, secondary and auxiliary arches are superimposed and respectively take positions partially shown in solid lines in FIG. 5.
  • the auxiliary arches 12 and 13 are thus respectively above the others main and secondary hoops.
  • the floor 19 of this radome 1 and the platform 20 surrounding the latter (FIG. 1) are constructed so as to have an identical level and equal to or greater than that of these auxiliary arches 12 and 13 in their retracting positions partially shown in FIG. 5.
  • the pivoting supports 10 and 11 are then fixed in a trench or slot circular 21 hollowed out or formed in the platform 20.
  • the main hoops 4, 5 and secondary 6, 7, 8, 9 are stored in this trench 21 when the radome 1 is fully opened while the two auxiliary hoops 12 and 13 are respectively housed in the trenches or slots 22, 23 formed in this platform 20.
  • the two auxiliary poles 12 and 13 which guide the movement of the main and secondary poles are reduced to a single auxiliary pole.
  • the flexible cover or envelope 3 of the folding radome 1 consists of two parts 24 and 25 (FIG. 2) each covering an area substantially equal to that of half of a hemisphere.
  • Each of the parts 24 and 25 is fixed by a first of its edges in the trench 21 against the floor 19 and by its second edge to one of the two main poles 4, 5 while its central zone is fixed to the secondary poles 6 , 7 or 8.9.
  • Each of the parts 24, 25 of the flexible cover or envelope 3 forms (FIG. 4) a double wall assembly, compartmentalized in inflatable spindles 26, independent, that is to say not communicable with one another by their side walls, and having a lenticular cross-section, in other words substantially elliptical.
  • These spindles with lenticular section 26 inflatable under a predetermined pressure play the role of inflatable multi-beams and allow the flexible cover 3 to remain alone in hemispherical shape and to offer good wind resistance, even without the rigid folding frame 2.
  • the folding radome 1 thanks to a cover 3 to spindles with lenticular section 26 has the advantage of having a folding frame 2 lighter than the fixed structure of the known radome. This advantage helps to facilitate the installation of the folding radome 1 in places that are difficult to access by means of land transport using wheels or chains.
  • Certain known radomes include a cover or a flexible wall in which cylindrical tubes are formed and inflated to stiffen or serve as beams for holding this wall or cover in position.
  • the surface tension of the cover or wall of the radome is broken along the place occupied by this tube inflated and a pocket can form, because the surface of the material forming the cylindrical envelope of the deflated tube is always greater than that occupying its diameter and this difference in dimensions is not absorbed or compensated by any available traction exerting on this cover or wall, the other cylindrical tubes being already inflated to its predetermined maximum degree.
  • the neighboring lenticular spindles 26 more or less round off and instantly create a traction on the cover 3 at the location of the deflated spindle so as to maintain constantly cover 3 in tension and avoid any disadvantageous formation of pocket or flaccid part therein, creating areas of weakness in wind resistance.
  • the lenticular shape thus gives the swollen spindles 26 a constantly available power of traction on the covering zones 3 which surround them and allows these spindles 26 to maintain uniformity of tension over the entire surface of this covering 3.
  • a combination of a rigid folding frame 2, a flexible cover 3 with inflatable lenticular spindles 26 and an internal pressure created substantially equal to the dynamic pressure of a wind with predetermined characteristics makes it possible to give this folding radome 1 even better mechanical resistance to this wind, with respect to a combination of a frame 2 and a cover 3 with inflatable lenticular spindles 26 described in a previous paragraph, and excellent safety Operating.
  • the lenticular spindles 26 always keep the cover 3 in tension and thereby reduce or eliminate the vulnerability of the installation.
  • the internal wall is pressed against the external wall under the effect of the internal pressure and / or the traction exerted by the neighboring spindles which more or less round off and thus plug or seal this tear, which makes it possible to avoid any aggravation of this incident.
  • the systems for inflating the lenticular spindles 26 and for creating internal pressure in the radome 1 are systems of known types which are not described in detail below.
  • the folding frame 2 is preferably made of a known material such as a metal, a metal alloy or a composite synthetic material, mechanically resistant, light and little or not vulnerable to corrosion.
  • the flexible cover 3 is preferably made of a mechanically resistant, waterproof fabric such as that provided with a polyester support covered with a coating based on polyvinyl chloride.
  • the folding radome 1 can have a diameter of fifty meters or more and a height of thirty meters or more.
  • the main hoops 4, 5 and secondary 6, 7, 8, 9 are made of a material chosen from profiles, angles and tubes shaped and provided with holes for their fixing by screws or bolts to the cover 3.
  • the cover 3 can be reinforced at their points of attachment to the arches of the frame 2, by known reinforcing elements such as plates, washers, etc.
  • the auxiliary poles 12, 13 are, in the example illustrated (FIGS. 6, 7, 8, 9) constituted by sections of metal or of a resistant metal alloy, little or not vulnerable to corrosion, having a cross section at E ( Figure 9) each defining two parallel sliding tracks 30a, 30b or 31a, 31b respectively for two of the four identical carriages 32a, 32b or 33a, 33 b of a closing actuating system and opening the flexible cover 3 of the radome 1.
  • Each of the sliding tracks 30 or 31 preferably has a cross section in the shape of a C. The ends of the arches 12 and 13 rotate around the horizontal axes such as 34 in FIG.
  • the auxiliary roll bar 13 comprises the same structure as that of the roll bar 12 and pivoting systems 35, 36 37, 38 and synchronization systems 39, 40, 41, 42 identical to those of this auxiliary roll bar 12 described above.
  • Each 32a, 32b, 33a, 33b of the carriages of a pair of carriages 32, 33 which slide respectively in the channels 30 and 31 of an auxiliary arch 12 or 13, comprises ( Figures 8,9) a body 44 provided of rollers 45 and guide rollers 46 resting on the bottom and side walls of these tracks, and surmounted by an attachment support 47 on which is fixed a corresponding main hoop 4 or 5.
  • Each of the trolleys 32a, 32b is respectively drawn firstly in one direction by one or more pull cables 48a, 48 b of a drive system comprising ( Figures 8, 10), a drum 49a, 49 b storage traction rope 48a, 48b, the pulleys 50a, 50b, a geared motor 51a, 51b, and secondly in an opposite direction, by one or more return cables 52a, 52 b of a winding system comprising (figures 8, 10, 11) a drum 53a, 53 b of the guide pulleys 54a, 54 b, a geared motor 55a, 55 b for driving the drum 53a, 53 b, and means to counterweight 56a, 56b ensuring good voltage booster cables 52a, 52b and pulling 48a, 48 b.
  • the main poles 4 and 5 are also respectively fixed to the fixing holders 33a carriages and 33 b of the auxiliary ARCAU 13 ( Figure 10). Synchronization in a pivoting of each of the main arches 4 and 5 by geared motors 51 a and 61 or 51 b and 61 is carried out by a system comprising dynamo-speedmeters 65a or 65 b and 66a or 66 b mounted on the shaft of the corresponding geared motors 51 a or 51 b and 61 a or 61 b of which one 51 a or 51 b is controlled or piloted, a comparator 67a or 67 b of the data emitted by these dynamotachymetrics 65a or 65 b and 66a or 66 b , an amplifier 68a or 68 b of the output signal of this comparator and a speed variator 69a or 69 b which receives a control signal emitted by this amplifier 68a or 68 b , and corrects the speed
  • a synchronization of winding of the return cables 52a and 62a or 52 b and 62 b of the carriages 32a and 33a or 32 b and 33 b by the corresponding geared motors 55 is carried out by a system similar to that which regulates the geared motors 51 a and 61a ( Figure 10).
  • the main arches 4 and 5 preferably include one or more locking devices 70 which allow them to be connected and block the closing of the folding radome 1.
  • This locking device 70 comprises for example on the one hand a substantially rectangular cleat 71, integral with the first of the two main arches shown in broken lines and pivoting about an axis perpendicular to the plane of its body under the control of a motor 72, and on the other share a rectangular opening 73 formed in the second 4 of these main arches for the passage of this cleat 71, and provided in its longitudinal edges with rising risers 74, 75, shown in broken lines.
  • the material protected by this radome is completely free to be in communication with the outside atmosphere.
  • the retracted radome 1 does not interfere with the equipment from the point of view of vision, transmission or reception and does not create electrical, magnetic or light disturbances, provides effective protection against bad weather and resists strong winds with great operational safety, that radomes of known types do not have all these characteristics.
  • the folding radome 1 comprises a light structure facilitating its installation, and a simple operation which facilitates its use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Inorganic Insulating Materials (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Tents Or Canopies (AREA)
  • Superstructure Of Vehicle (AREA)
  • Seal Device For Vehicle (AREA)
  • Outer Garments And Coats (AREA)
EP87400246A 1986-02-07 1987-02-03 Radome pliant Expired - Lifetime EP0235013B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87400246T ATE51669T1 (de) 1986-02-07 1987-02-03 Zusammenfaltbare radarkuppel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8601723 1986-02-07
FR8601723A FR2594157B1 (fr) 1986-02-07 1986-02-07 Radome pliant.

Publications (2)

Publication Number Publication Date
EP0235013A1 EP0235013A1 (fr) 1987-09-02
EP0235013B1 true EP0235013B1 (fr) 1990-04-04

Family

ID=9331931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400246A Expired - Lifetime EP0235013B1 (fr) 1986-02-07 1987-02-03 Radome pliant

Country Status (7)

Country Link
US (1) US4833837A (da)
EP (1) EP0235013B1 (da)
AT (1) ATE51669T1 (da)
DE (1) DE3762139D1 (da)
DK (1) DK57787A (da)
ES (1) ES2015303B3 (da)
FR (1) FR2594157B1 (da)

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US6718696B2 (en) 2001-01-23 2004-04-13 Uni-Systems, Llc Movable wall for stadium
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US6789360B2 (en) 2001-01-23 2004-09-14 Uni-Systems, Llc Retractable roof system for stadium
US6795753B2 (en) * 2002-09-10 2004-09-21 Andrew Corporation Compressor control module
US7520091B2 (en) * 2004-07-09 2009-04-21 Friedman Daniel B Adaptable roof system
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US20090121207A1 (en) * 2007-11-14 2009-05-14 James Patrick Bowerman Configurable enclosure
US8013802B2 (en) * 2008-12-01 2011-09-06 Lockheed Martin Corporation Portable radar fairing
KR101952461B1 (ko) 2010-12-14 2019-02-26 디에스엠 아이피 어셋츠 비.브이. 레이돔을 위한 물질 및 이의 제조 방법
US8950308B2 (en) * 2011-03-23 2015-02-10 Advanced Materials And Devices, Inc. Forward closure system
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RU150799U1 (ru) * 2013-01-10 2015-02-27 Тини Лав Лтд. Детский игровой центр
US9011196B2 (en) 2013-03-15 2015-04-21 Global Marketing Enterprise (Gme) Ltd. Developmental activity gym for babies
US9583823B2 (en) * 2013-06-27 2017-02-28 Commscope Technologies Llc Foldable radome
USD739555S1 (en) * 2014-03-20 2015-09-22 Rob McAlister Limited Folding structure for storage, shelter, and plant growing
US9493939B2 (en) * 2014-07-25 2016-11-15 South Industries, Inc. Airform for facilitating construction of a structure
USD774208S1 (en) * 2014-11-13 2016-12-13 Kt-Shelter Oy Shelter
US10307686B2 (en) * 2016-11-17 2019-06-04 Skip Hop, Inc. Activity gym
US20190106902A1 (en) * 2017-10-06 2019-04-11 Francisco Irizarry Automatically Retractable Vehicle Cover
WO2019121663A1 (en) 2017-12-22 2019-06-27 Dsm Ip Assets B.V. High performance polyethylene fibers composite fabric
WO2019121675A1 (en) 2017-12-22 2019-06-27 Dsm Ip Assets B.V. Method to produce a high performance polyethylene fibers composite fabric
FR3106440A1 (fr) * 2020-01-21 2021-07-23 E-Business Venture Structure de protection d'une antenne de communication vis a vis de son environnement
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CN112031166B (zh) * 2020-09-04 2022-06-21 中国科学院国家天文台 一种能完全铺平的开放式天文圆顶
ES2936384B2 (es) * 2021-09-16 2024-03-07 Gaptec 2011 S L Sistema de plegado y desplegado de hangares
USD1021141S1 (en) * 2021-09-29 2024-04-02 Christopher Fisher Goldblatt Domed structure
USD1087393S1 (en) * 2022-08-01 2025-08-05 Hyundai Motor Company Structure for mobility station
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CN117913523B (zh) * 2023-12-30 2024-09-17 扬州斯帕克实业有限公司 一种便携的透波雷达罩

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Also Published As

Publication number Publication date
ATE51669T1 (de) 1990-04-15
DK57787D0 (da) 1987-02-04
DE3762139D1 (de) 1990-05-10
EP0235013A1 (fr) 1987-09-02
DK57787A (da) 1987-08-08
ES2015303B3 (es) 1990-08-16
FR2594157B1 (fr) 1991-03-15
FR2594157A1 (fr) 1987-08-14
US4833837A (en) 1989-05-30

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