[go: up one dir, main page]

EP0203857B1 - Poteau, notamment pour supporter des lignes électriques ou téléphoniques - Google Patents

Poteau, notamment pour supporter des lignes électriques ou téléphoniques Download PDF

Info

Publication number
EP0203857B1
EP0203857B1 EP86401076A EP86401076A EP0203857B1 EP 0203857 B1 EP0203857 B1 EP 0203857B1 EP 86401076 A EP86401076 A EP 86401076A EP 86401076 A EP86401076 A EP 86401076A EP 0203857 B1 EP0203857 B1 EP 0203857B1
Authority
EP
European Patent Office
Prior art keywords
wall
post
fibres
walls
connecting means
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
EP86401076A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0203857A1 (fr
Inventor
Pierre Bourrieres
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.)
Manufacture dAppareillage Electrique de Cahors SA
Original Assignee
Manufacture dAppareillage Electrique de Cahors 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 Manufacture dAppareillage Electrique de Cahors SA filed Critical Manufacture dAppareillage Electrique de Cahors SA
Priority to AT86401076T priority Critical patent/ATE58407T1/de
Publication of EP0203857A1 publication Critical patent/EP0203857A1/fr
Application granted granted Critical
Publication of EP0203857B1 publication Critical patent/EP0203857B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E04H12/02—Structures made of specified materials

Definitions

  • the present invention relates to a pole, in particular for supporting electrical or telephone lines.
  • a composite post comprising a hollow longitudinal interior space surrounded by a shell which comprises a substantially rigid internal wall of synthetic resin reinforced with fibers, a certain number of rods. steel arranged longitudinally and distributed around the internal wall, these rods themselves being surrounded by a substantially rigid external wall made of synthetic resin reinforced with fibers, while a filler material keeps the rods in place between the two walls.
  • the object of the invention is to propose a tubular post composed essentially of plastic material which can be very particularly light, taking into account the load in bending-compression which it can withstand.
  • the pole in particular for supporting electrical or telephone lines, comprising a hollow longitudinal interior space surrounded by a shell comprising a substantially rigid internal wall comprising longitudinal fibers embedded in a mass of plastic material, this internal wall being even surrounded at a certain radial distance by an external wall comprising fibers extending in a substantially circumferential direction, connecting means being provided between the external and internal walls, is characterized in that the internal wall is produced by pultrusion and in that the longitudinal fibers of the internal wall are thus prestressed in tension within the plastic.
  • the connecting means ensure that the two walls cannot deform independently of one another, so that the shell locally has, in each sector of its periphery, a relatively large moment of inertia.
  • the weakness of the local moment of inertia which, despite the large value of the total moment of inertia, allows known metal tubular posts to bend under relatively low loads.
  • the substantially circumferential fibers prevent the outer wall from bursting, especially when the post is working in compression and in torsion (twisting). Flexion is a combination of traction and compression.
  • the longitudinal fibers prestressed in tension give each generating line of the post a great resistance to traction. They do not resist, on the other hand, not particularly to compression, but the outer shell with circumferential fibers plays in this respect a hooping role, transmitted to the internal wall by the connecting means arranged between the two walls.
  • the post shown in FIG. 1 comprises a cylindrical shell 1, of circular profile, surrounding a longitudinal internal hollow space 2.
  • the lower end of the post is planted, that is to say embedded, in the ground 3.
  • This kind of pole carries for example telephone or electric lines. It thus supports its own weight, the weight of the lines, and horizontal forces due for example to the wind or to the mechanical tension in the lines when they follow a non-rectilinear path in the horizontal plane. This results in horizontal forces F1 applied to the pole in the vicinity of its upper end, and vertical forces Fh generally spaced from the axis of the pole.
  • This type of loading, in flexion-compression, tends very strongly to make the post bend just above its embedding.
  • the shell 1 of the post comprises a substantially rigid internal wall 4 adjacent to the space 2 and an external wall 6 which surrounds the internal wall 4 at a certain radial distance from the latter.
  • the two walls 4, 6 are connected by a connecting means 7 which adheres firmly to each of them and therefore prevents one from deforming independently of the other.
  • the connecting means 7 is a filling material such as foam or felt.
  • each of the walls 4 and 6 is made of plastic material containing reinforcing fibers extending in the longitudinal direction of the post.
  • the walls 4 and 6 are obtained by the pultrusion process, that is to say a process of the extrusion type in which the product by the reinforcing fibers is pulled out of the extruder to keep the reinforcing fibers their orientation during extrusion.
  • the outer wall 6 contains fibers arranged in any order 11, some therefore being oriented in a substantially tangential direction and forming an angle with the longitudinal axis 12 (Figure 1) of the post.
  • some of the fibers 11 extend in a substantially circumferential direction.
  • the two walls 4 and 6 are made in one piece with the connecting means 7. It is indeed envisaged according to the invention to form a felt tube in the pultrusion machine, to guide this felt tube in the axis of the orifice of the pultrusion machine, and to carry out the pultrusion by pulling on the assembly formed by the two walls 4 and 6 between which the felt tube 7 is interposed. This gives very good adhesion. between each face of the felt tube and the adjacent wall 4 or 6 because the plastic material permeates the surface of the felt during extrusion.
  • the longitudinal fibers are guided by coaxial layers to be assigned to one or the other wall, and even to be distributed in the thickness of each wall. It is therefore possible to selectively introduce into the outer wall 6, the fibers in any order 11, by placing them between the longitudinal fibers intended for the outer wall.
  • the connecting means 7 is a foam
  • the two walls 4 and 6 can be produced independently of one another, then position the wall 4 in the wall 6 and inject the foam between the two walls.
  • the foam will be chosen for its qualities of adhesion to the plastic of the walls 4 and 6 and of good resistance to shear stresses.
  • the inner wall 4 and the connecting means 7 are unchanged.
  • the outer wall 6 is constituted by a filament winding produced in the circumferential direction around the connecting means 7.
  • the filament winding consists in winding on a body of multi-fiber wicks impregnated with resin.
  • the connecting means 7 are constituted by bridges 8 connecting the two walls 4, 6.
  • the bridges 8 are ribs extending axially over the entire length of the post.
  • the two walls 4 and 6 are integral with the ribs 8.
  • the whole is made of plastic reinforced with fibers extending in the longitudinal direction of the post. This one-piece structure can be obtained in a single operation by pultrusion.
  • the outer wall 6 also contains, substantially at mid-thickness and over its entire periphery, a fiberglass fabric 13. Due to its nature of fabric, the fiber fabric 13 necessarily comprises fibers extending tangentially forming an angle with the axis of the post. The tissue 13 is introduced into the extruder, by positioning relative to the longitudinal fibers.
  • the internal wall 4 is made in one piece with the ribs 8, of plastic material reinforced with longitudinal fibers, the whole obtained by pultrusion as in FIGS. 6 and 7.
  • the external wall 6 is constituted by a filament winding bearing on the tops of the ribs 8.
  • the external wall 6 has a polygonal profile whose vertices coincide with the tops of the ribs 8.
  • the walls 4, 6 can be extremely thin and the connecting means 7 very light, either because of their low density (felt or foam), or because of the hollows left between them (ribs 8). But in all cases, the local moment of inertia of the beam is considerably increased.
  • local moment of inertia we mean the moment of inertia of a part of the circumference of the beam profile, for example the part enclosed in the rectangle 9 in FIG. 3. It is more precisely the moment of inertia around axis 11 of greatest weakness which is considered.
  • moment of inertia of a part of the profile we designate the moment of inertia of this part independently of the support which can be given to it by the rest of the profile.
  • the moment of inertia of the profile part such as 9 around the axis 11 is much greater than the moment of inertia of a corresponding part of a single-walled tube of equivalent weight. Thanks to this increase in the local moment of inertia at each point of the periphery of the profile, the initial deformation which is necessary in the compressed region of a beam cannot occur for the buckling to take place.
  • the invention can be implemented with walls 4, 6 produced by a process other than pultrusion.
  • a material of the felt or foam type can be provided in the circumferential spaces between the ribs 8.
  • the tangential fibers could be made with the fabric of Figures 6 and 7.
  • the fibers in any order of Figures 1 to 3 could be used to make the tangential fibers of the embodiment according to Figures 6 and 7.
  • provision could also be made in the two embodiments (FIGS. 1 to 3, 6 and 7) to produce the tangential fibers by filament winding surrounding an extruded wall which could then only contain longitudinal fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Insulated Conductors (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Moulding By Coating Moulds (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Refuse-Collection Vehicles (AREA)
  • Control Of El Displays (AREA)
  • Laminated Bodies (AREA)
  • Communication Cables (AREA)
  • Waveguide Aerials (AREA)
  • Road Signs Or Road Markings (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Details Of Indoor Wiring (AREA)
  • Telephone Set Structure (AREA)
  • Telephone Function (AREA)
EP86401076A 1985-05-28 1986-05-22 Poteau, notamment pour supporter des lignes électriques ou téléphoniques Expired - Lifetime EP0203857B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86401076T ATE58407T1 (de) 1985-05-28 1986-05-22 Mast, insbesondere zum tragen von elektrischen oder telefonischen leitungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8507953A FR2582706B1 (fr) 1985-05-28 1985-05-28 Poteau, notamment pour supporter des lignes electriques ou telephoniques
FR8507953 1985-05-28

Publications (2)

Publication Number Publication Date
EP0203857A1 EP0203857A1 (fr) 1986-12-03
EP0203857B1 true EP0203857B1 (fr) 1990-11-14

Family

ID=9319592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401076A Expired - Lifetime EP0203857B1 (fr) 1985-05-28 1986-05-22 Poteau, notamment pour supporter des lignes électriques ou téléphoniques

Country Status (9)

Country Link
EP (1) EP0203857B1 (no)
JP (1) JPS61277780A (no)
CN (1) CN86103634A (no)
AT (1) ATE58407T1 (no)
DE (2) DE3675581D1 (no)
ES (1) ES296792Y (no)
FI (1) FI862237A (no)
FR (1) FR2582706B1 (no)
NO (1) NO162877C (no)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2111724A1 (en) * 1993-12-17 1995-06-18 Raymond Wayne Gillard Scaffold system
FR2714409B1 (fr) * 1993-12-23 1996-03-15 Cogidev Structure porteuse pouvant être utilisée comme poteau ou poutre.
DE69912255T2 (de) 1998-03-19 2004-08-12 Paul W. Mascouche Fournier Aufbau für einen leitungsmast
FR2871215B1 (fr) * 2004-06-04 2007-08-17 Epsilon Composite Sarl Sarl Procede de fabrication d'un tube en materiau composite de grande raideur, et tube obtenu
WO2006005323A1 (de) * 2004-07-09 2006-01-19 Krupp Stahlbau Hannover Gmbh Rohrförmige struktur und verfahren zu ihrer errichtung
WO2009009425A2 (en) * 2007-07-09 2009-01-15 Scott Ryan Support pole structure and method of manufacture
US8192572B2 (en) * 2008-04-25 2012-06-05 General Electric Company Composite wind turbine tower and a method for fabricating same
GB2491854A (en) * 2011-06-14 2012-12-19 Stephen Howard A post containing loose material for limiting collision damage
CN102705180A (zh) * 2012-06-25 2012-10-03 济南轨道交通装备有限责任公司 一种复合材料风电塔筒
CN104240771B (zh) * 2014-10-11 2016-08-31 安吉安宁生物科技有限公司 一种杀虫灯的抗灾害支架结构
NO20160271A1 (no) * 2016-02-16 2016-11-04 Comrod As Anordning og fremgangsmåte for innfesting og oppretting av en komposittmast.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB812414A (en) * 1954-12-24 1959-04-22 Gar Wood Ind Inc Supporting members such as telephone poles
US4007075A (en) * 1973-12-10 1977-02-08 Cascade Pole Company Method of making a fiberglass pole
GB2074213B (en) * 1980-04-17 1983-11-30 Hepworth Plastics Ltd Poles and posts
DE3242161A1 (de) * 1982-11-13 1984-05-17 Hans 8100 Garmisch-Partenkirchen Langmatz Wartungsfreier kunststoffmast fuer leuchten, verkehrsampeln, verkehrsschilder und dgl.

Also Published As

Publication number Publication date
DE3675581D1 (de) 1990-12-20
JPS61277780A (ja) 1986-12-08
NO162877B (no) 1989-11-20
NO862037L (no) 1986-12-01
ES296792U (es) 1988-01-16
FI862237A0 (fi) 1986-05-27
ES296792Y (es) 1988-09-16
CN86103634A (zh) 1986-11-26
NO162877C (no) 1990-02-28
FR2582706A1 (fr) 1986-12-05
FR2582706B1 (fr) 1989-09-01
EP0203857A1 (fr) 1986-12-03
DE203857T1 (de) 1987-03-19
FI862237A (fi) 1986-11-29
ATE58407T1 (de) 1990-11-15

Similar Documents

Publication Publication Date Title
EP0172093B1 (fr) Eléments de structure en béton comprimé et dispositif pour les fabriquer
EP0203857B1 (fr) Poteau, notamment pour supporter des lignes électriques ou téléphoniques
EP2504176B1 (fr) Roue composite, notamment pour un cycle, et procede de fabrication d'une telle roue
EP2193930B1 (fr) Roue à rayons
CA2792524C (fr) Procede de realisation en continu d'une piece de liaison en materiau composite
EP0335781B1 (fr) Corps à structure composite pour joint de transmission et son procédé de réalisation
EP1015301B1 (fr) Pivot de fourche de bicyclette, et fourche de bicyclette equipee d'un tel pivot
FR2746867A1 (fr) Assemblage entre des barres ou des tubes en materiaux composites renforces par des fibres
FR2756605A1 (fr) Conduite flexible a tube interne metallique ondule etanche au gaz
FR2574752A1 (fr) Pale pour rotor d'helicoptere en materiau composite multilongeron a caissons de torsion et son procede de fabrication
CA1263161A (fr) Support de cables pour poteau electrique
FR2933030A1 (fr) Roue a rayons laces, notamment pour un cycle, et procede de fabrication d'une telle roue
EP1798429B1 (fr) Bielle a tube en un materiau composite et procede de fabrication d'une telle bielle
EP1044827A1 (fr) Rayon réalisé en matériau composite pour une roue, et roue de bicyclette équipée desdits rayons
FR2917666A1 (fr) Roue a rayon demontable en materiau composite
FR2672880A1 (fr) Bobine de conditionnement de conducteur.
FR2645070A3 (fr) Elements de structure en materiau composite a pieces extremes de fixation, en metal et son procede de fabrication
EP0081834B1 (fr) Ski du type à noyau à structure allégée et son procédé de fabrication
FR2915710A1 (fr) Rayon en metal et matiere composite pour une roue a rayons.
EP0872357A1 (fr) Ame d'un rayon pour roue à rayons, rayon et roue de bicyclette
FR2956422A1 (fr) Poutrelle metallique pour la fabrication de planchers.
EP1201271A1 (fr) Cadre de raquette
FR2564635A1 (fr) Armure de traction pour cables, et cable pour usage sous-marin muni d'une telle armure
FR2752769A1 (fr) Panneau composite renforce notamment pour l'ancrage d'une piece, vehicule automobile equipe de ce panneau et son procede de fabrication
FR2834307A1 (fr) Barriere de securite pour voies de circulation de vehicules comprenant une lisse formee d'une ame interieure et d'une enveloppe exterieure

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19860526

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE FR GB IT LU NL SE

TCAT At: translation of patent claims filed
ITCL It: translation for ep claims filed

Representative=s name: BARZANO' E ZANARDO ROMA S.P.A.

TCNL Nl: translation of patent claims filed
DET De: translation of patent claims
17Q First examination report despatched

Effective date: 19880121

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 58407

Country of ref document: AT

Date of ref document: 19901115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3675581

Country of ref document: DE

Date of ref document: 19901220

ITTA It: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19930512

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930531

Year of fee payment: 8

Ref country code: LU

Payment date: 19930531

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930702

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930726

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940522

Ref country code: AT

Effective date: 19940522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19940531

BERE Be: lapsed

Owner name: MANUFACTURE D'APPAREILLAGE ELECTRIQUE DE CAHORS

Effective date: 19940531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
EAL Se: european patent in force in sweden

Ref document number: 86401076.4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990510

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19990528

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000523

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000522

EUG Se: european patent has lapsed

Ref document number: 86401076.4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020531

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050522