EP0443278B1 - Procédé de fabrication d'une armature métallique pour profilés en une matière synthétique résiliente - Google Patents

Procédé de fabrication d'une armature métallique pour profilés en une matière synthétique résiliente Download PDF

Info

Publication number
EP0443278B1
EP0443278B1 EP19900400480 EP90400480A EP0443278B1 EP 0443278 B1 EP0443278 B1 EP 0443278B1 EP 19900400480 EP19900400480 EP 19900400480 EP 90400480 A EP90400480 A EP 90400480A EP 0443278 B1 EP0443278 B1 EP 0443278B1
Authority
EP
European Patent Office
Prior art keywords
strip
phase
strips
contiguous
axis
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
EP19900400480
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0443278A1 (fr
Inventor
François Mesnel
Gérard Mesnel
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.)
Mesnel SA
Original Assignee
Mesnel 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 Mesnel SA filed Critical Mesnel SA
Priority to DE1990602226 priority Critical patent/DE69002226T2/de
Publication of EP0443278A1 publication Critical patent/EP0443278A1/fr
Application granted granted Critical
Publication of EP0443278B1 publication Critical patent/EP0443278B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal

Definitions

  • the present invention relates to a method of manufacturing a metal frame for profiles of a resilient synthetic material, for example of elastomer or plastomer, according to the preamble of claim 1.
  • sealing elements are used on a very large scale comprising a clamp part, which covers a flange or a rebate of the body, and a sealing member integral with the forming part. pliers. It can also be used alone, to protect rebates or as a decorative element. This clamp can also serve as a support for a body that is distinctly attractive.
  • this clamp usually has a U-shaped cross section and it has a metal frame, generally made of steel or aluminum, onto which a polymer such as plasticized polyvinyl chloride or vulcanized rubber has been extruded.
  • Lips of this polymer protrude on the internal faces of the branches of the U in the direction of the opposite branch, in order to ensure the attachment of the clamp on the flange or on the rebate of which it is integral.
  • DE-A-2 801 082 on which the preamble of claim 1 is based, relates to a metal frame made up of adjoining strips by attachment points arranged in two parallel strips. These strips are first deformed in the manner of louvers, as shown in Figure 1 of this document, then they are flattened and stretched.
  • GB-A-2067 105 describes an armature of equally different shape and there is no stretching phase proper, the stretching resulting from the passage between rollers 5 a -5 b of a particular type (see figures 8 and 9). There is also no deformation of the slats and straightening thereof.
  • the shape of the reinforcement described is also different and it is produced by a process which does not include phases of deformation of the tongues, of straightening of the latter and of work hardening. the stretched strip.
  • the strip is subjected to an additional work hardening operation, by compressing more significantly, following at least two parallel ribbons arranged symmetrically with respect to the longitudinal axis, the lateral parts extending the contiguous parallelograms. formed of lamellae.
  • the first phase of cutting and stamping the strip can be carried out easily by devices that are usual in the art.
  • the third phase, or stretching phase, could lead to a very significant elongation of the strip, of the order of 45%.
  • the final work hardening phase can finally be carried out using a train of rollers compressing the strip along its entire surface. This work hardening could lead to a reduction in the thickness of the strip of the order of 25%.
  • the reinforcement thus produced allows, for equal performance, to achieve a serious saving of metal, since the elongation phase combined with the hardening phase results in a gain of metal which can reach 50% per unit. length.
  • Figure 4 is a perspective view, partially cut away, of an elastomer profile equipped with a metal frame produced by a method according to the invention.
  • FIGS. 1 a , 1 b and 1 c of the drawings show the profile produced, by simultaneous cutting and stamping, from a continuous rectilinear metal strip, not shown.
  • the starting strip is made of mild steel, cold rolled, the breaking strength of which is around 520 ⁇ 40 megapascals.
  • This strip is cut, perpendicular to its longitudinal axis of symmetry II, so as to define there lamellae 1, perpendicular to the axis of symmetry II of the strip and adjoining two by two to the adjoining lamellae, alternately at a connection point 2 arranged along axis II, and along two points 3, arranged symmetrically along lines II-II parallel to the axis of symmetry II, near the lateral edge of the strip.
  • the adjoining lamellae 1 are separated from each other, on either side of the plane of origin of the strip, on the one hand, at the level of axis II and, in the opposite direction, at their level.
  • the deformed strip resulting from this first operation is then flattened using a train of rollers, in order to obtain the profile illustrated by FIGS. 2 a and 2 b , where it can be seen that the strips 1 joined at locations 3 define in the central part of the strip of substantially regular parallelograms, which extend laterally by ends of divergent branches.
  • the first two operations result in a slight work hardening of the metal strip.
  • the metal strip thus treated can then be folded back to form a frame 4 of U-section, as shown in FIG. 4, which is sheathed by extrusion of a layer 5 of an elastomer to produce a profile forming a clamp, suitable for example to cover a flange of an automobile body, which differs from the usual profiles by increased flexibility and a large return force in position on a support.
  • FIG. 4 a distinction is made between the locations 3 where the strip has undergone additional work hardening laterally along two parallel strips arranged symmetrically with respect to its axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)
  • Springs (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP19900400480 1989-01-19 1990-02-21 Procédé de fabrication d'une armature métallique pour profilés en une matière synthétique résiliente Expired - Lifetime EP0443278B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1990602226 DE69002226T2 (de) 1990-02-21 1990-02-21 Verfahren zum Herstellen einer metallischen Armatur für Profile in biegsamem synthetischem Material.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8900614A FR2641719B1 (fr) 1989-01-19 1989-01-19 Procede de fabrication d'une armature metallique pour profiles en une matiere synthetique resiliente

Publications (2)

Publication Number Publication Date
EP0443278A1 EP0443278A1 (fr) 1991-08-28
EP0443278B1 true EP0443278B1 (fr) 1993-07-14

Family

ID=9377873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900400480 Expired - Lifetime EP0443278B1 (fr) 1989-01-19 1990-02-21 Procédé de fabrication d'une armature métallique pour profilés en une matière synthétique résiliente

Country Status (3)

Country Link
EP (1) EP0443278B1 (es)
ES (1) ES2019208A6 (es)
FR (1) FR2641719B1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2309185A (en) * 1996-01-16 1997-07-23 Draftex Ind Ltd Stress relief of metal strip

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1497405A (en) * 1975-10-31 1978-01-12 Bion & Co Ltd R Expanded perforated metal strip for reinforcing synthetic plastics material and a method for producing same
JPS5691931A (en) * 1979-12-27 1981-07-25 Toyoda Gosei Co Ltd Production of trim core material
GB2199066B (en) * 1986-12-16 1991-05-15 Silent Channel Prod Ltd A strip structure.

Also Published As

Publication number Publication date
FR2641719B1 (fr) 1994-09-09
FR2641719A1 (fr) 1990-07-20
ES2019208A6 (es) 1991-06-01
EP0443278A1 (fr) 1991-08-28

Similar Documents

Publication Publication Date Title
CA2027568C (fr) Tube flexible comportant au moins un element allonge de renfort ayant un profil en t
CA2487049C (fr) Procede de mise en place des elements d`un panneau auto-raidi en composite pre-impregne
FR2651728A1 (fr) Armature metallique pour bande ou joint d'etancheite utilisable, en particulier, dans l'industrie automobile.
CA2442913A1 (fr) Chenille a bande souple sans fin avec nappes de renforcement, en particulier pour vehicules tout terrain
EP1382102A1 (fr) Gaine de protection comportant une bande longitudinale en matiere souple et procede de fabrication d'une telle gaine
EP0443278B1 (fr) Procédé de fabrication d'une armature métallique pour profilés en une matière synthétique résiliente
EP0720826B1 (fr) Structure de revêtement pour sièges, apte à résister aux lacérations, et son procédé de fabrication
EP0663323A1 (fr) Enjoliveur en polymère
FR2585436A3 (fr) Organe arme en forme de gouttiere pour joncs d'etancheite, d'enjolivement et de guidage
FR2650648A1 (fr) Procede de fabrication d'une armature metallique pour profiles en une matiere synthetique resiliente
FR2686295A1 (fr) Element profile arme.
EP0568443B1 (fr) Armature pour joint et joint d'étanchéité comportant une telle armature
EP0456561B1 (fr) Armature pour profilé utilisable, en particulier, dans l'industrie automobile
FR2762264A1 (fr) Profile tubulaire a effet insonorisant ameliore et joint comportant un tel profile, pour encadrement d'ouvrant d'un vehicule automobile
FR2650871A1 (fr) Procede de fabrication d'une armature metallique pour profiles en une matiere synthetique resiliente
EP1044839A1 (fr) Armature à fil métallique pour profilé en élastomère ou en plastomère et son procédé de fabrication
FR2657292A1 (fr) Procede de fabrication d'un profile formant pince, a armature metallique gainee d'une matiere plastique, et profile ainsi obtenu.
FR2792232A1 (fr) Feuillard comportant une face cannelee, notamment pour la realisation d'armatures pour profiles en plastomere ou elastomere
FR3078039A1 (fr) Element d'habillage et/ou d'etancheite continu pour vehicule automobile comprenant deux parties profilees de profils respectifs differents et formant un angle
FR2726624A1 (fr) Armature interne pour joints d'etancheite
FR2824504A1 (fr) Procede de fabrication d'un profile formant pince, a armature metallique gainee d'un elastomere, dispositif de mise en oeuvre et profiles ainsi obtenus
EP0734904B1 (fr) Joint d'étanchéité et son procédé de fabrication
EP1586476A1 (fr) Nouveau profilé formant prince, en élastomère ou en plastomère, apte à coiffer une partie saillante d'une carrosserie d'un véhicule automobile
EP1060929B1 (fr) Nouvelle armature rigide pour profilé en élastomère ou plastomère et profilé équipé de cette armature.
BE650196A (es)

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19911204

17Q First examination report despatched

Effective date: 19920629

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

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

Effective date: 19930712

REF Corresponds to:

Ref document number: 69002226

Country of ref document: DE

Date of ref document: 19930819

ITF It: translation for a ep patent filed
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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: DE

Payment date: 20050208

Year of fee payment: 16

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

Ref country code: GB

Payment date: 20050214

Year of fee payment: 16

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: 20060221

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

Ref country code: IT

Payment date: 20060228

Year of fee payment: 17

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

Ref country code: DE

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

Effective date: 20060901

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

Effective date: 20060221

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

Effective date: 20070221