EP3448702A1 - Bande squelette pourvue d'un moyen de renforcement - Google Patents

Bande squelette pourvue d'un moyen de renforcement

Info

Publication number
EP3448702A1
EP3448702A1 EP17725515.5A EP17725515A EP3448702A1 EP 3448702 A1 EP3448702 A1 EP 3448702A1 EP 17725515 A EP17725515 A EP 17725515A EP 3448702 A1 EP3448702 A1 EP 3448702A1
Authority
EP
European Patent Office
Prior art keywords
strip
scaffolding
slots
reinforcing means
metal strip
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.)
Withdrawn
Application number
EP17725515.5A
Other languages
German (de)
English (en)
Inventor
Hanno GELLRICH
Christian Nutz
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.)
Lwb Steinl & CoKg GmbH
Original Assignee
Lwb Steinl & CoKg 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 Lwb Steinl & CoKg GmbH filed Critical Lwb Steinl & CoKg GmbH
Publication of EP3448702A1 publication Critical patent/EP3448702A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00—Sealing arrangements
    • B60J10/15—Sealing arrangements characterised by the material
    • B60J10/18—Sealing arrangements characterised by the material provided with reinforcements or inserts

Definitions

  • the present invention relates to a deformable scaffold strip which is used as an insert for ornamental or sealing strips of flexible material, in particular for rubber and / or non-plastic clamping profiles.
  • the present invention relates to an improvement of the scaffolding strip and a method for producing such a scaffolding strip.
  • Scaffold bands that are used as reinforcing insert for decorative or sealing strips made of rubber or plastic are known, for example from DE 10 2010 019 458 AI.
  • Such scaffolding bands usually have a metal strip with slots which are introduced by punching or cutting with subsequent stretching in the metal strip.
  • the scaffolding bands are often wound as so-called endless belts on spools with several kilometers of winding length.
  • endless bands a plurality of individual band sections can be joined together, in particular by the ends of the band sections being welded together at a connection point. This is usually done before making the slots, sometimes after.
  • Partially full bands solid bands, i.e. bands without slots) are also processed.
  • the scaffolding strips can be bent into a profile and encased in an extrusion process with plastic and / or rubber.
  • the present invention is therefore based on the object, a skeleton tape as an insert for decorative or sealing strips of flexible material, in particular for rubber and / or Kunststoffklemmprofile provide, which has an improved further processing.
  • the dependent claims are directed to further aspects of the invention.
  • the inventors have found that the joint has a not inconsiderable influence on the susceptibility to scaffolding strip breakage, especially when it is formed as a weld. In tensile tests, it has been found that pieces of tape of the scaffolding band in the region of a connection point may have a significantly lower tensile strength than pieces of tape away from such a connection point.
  • the invention according to a first aspect relates to a deformable scaffold strip as an insert for ornamental or sealing strips of flexible material, in particular for rubber and / or plastic clamping profiles, wherein the scaffold strip preferably comprises a metal strip having a first strip section and a second strip section, which are connected to each other at a connection point.
  • the framework also has a reinforcing agent, element or substance. The reinforcing means is preferably not provided along the entire framework band, but in sections in the region of the connection point (s) and / or other weak points of the band.
  • the reinforcing means extend at most 20%, at most 50% or at most 100% longer than the heat affected zone in the longitudinal direction of the tape.
  • the reinforcing means may be selected to extend at most 20 mm, at most 15 mm, or at most 10 mm in the longitudinal direction of the band. It may extend at least 5 mm or at least 10 mm in the longitudinal direction of the band.
  • the connection point or the connection points may in particular be welds.
  • the scaffold strip according to the invention is preferably a semi-finished product for the production of ornamental or sealing strips or profile strips.
  • the scaffolding can provide a clamping force of the trim or sealing strips or moldings.
  • the metal strip is further processed into a scaffolding strip which preferably has a plurality of central slots arranged transversely to the longitudinal direction of the scaffolding strip and / or a plurality of edge slots which are directed inward transversely to the longitudinal direction of the scaffolding strip from both edges.
  • These slots are preferably produced by roll cutting.
  • a pattern of thin cuts is first introduced by means of a tool, wherein the slots are formed by a subsequent stretching of the tape.
  • the slots can also be produced in another method, for example in a stamping method.
  • the reinforcing agent is preferably introduced into at least one of the slots and / or preferably extends across at least one of the slots.
  • the reinforcing means is therefore preferably provided only after the production of the slots on the metal strip, ie preferably not immediately after the joining of the first and the second band section.
  • the reinforcing agent is applied to the metal strip and / or introduced into the slot (s).
  • the reinforcement may be applied to the joint and extend over the weld, for example.
  • the metal strip is preferably made of an aluminum alloy or steel.
  • the reinforcement according to the invention has proved to be particularly advantageous, particularly in the case of aluminum strips, because a particularly good improvement in the reduced tensile strength in the region of the weld could be achieved with these tapes.
  • the reinforcing means is preferably made of one or more materials other than the material of the metal strip.
  • the first band portion and the second band portion are preferably connected by means of a weld, for example via a TIG weld. Under certain circumstances, however, other connection techniques can be used, such as spot welding. A spot weld is particularly suitable when band sections are to be connected at a later time in the production process (in particular after the slits have been made).
  • the weld may extend obliquely to the longitudinal direction of the scaffolding strip, for example at an angle of 90 ° to 60 °, 90 ° to 70 °, 90 ° to 80 °, 90 ° to 85 °, 85 ° to 65 ° or 70 ° to 80 ° (eg about 90 ° or about 75 °) to the longitudinal direction.
  • the reinforcing agent of the scaffolding strip according to the invention is preferably formed such that the tensile strength in the region of the weld is approximately equal to the tensile strength of a non-welded region of the scaffold strip.
  • the tensile strength in the region of the reinforced weld may also differ from the tensile strength in the unwelded region of the skeleton strip and be for example at most 20%, at most 10%, at most 5% or at most 2% less than the tensile strength of the non-welded region of the skeleton strip.
  • the tensile strength may even be higher than that in the non-welded area of the scaffolding strip.
  • the tensile strength of the scaffold strip in the region of the weld and the tensile strength of the non-welded metal strip area can preferably be determined in each case by a tensile test on a scaffold or metal strip piece of 500 mm length at a constant travel speed of 100 mm / min.
  • the tensile test can be carried out according to DIN EN 10002-1.
  • the force-displacement curve can be recorded and the maximum force of the tensile test can be regarded as its tensile strength.
  • the reinforcing means preferably at least partially or even completely equalizes the weakening of the metal strip in the area of the weld (which, according to the inventors' findings, can be up to about 30%).
  • the reinforcing agent may in particular be designed such that the tensile strength of a scaffold strip piece with a reinforced by means of Verstärkungsmititteis weld against the tensile strength of a piece of scaffolding strip with a corresponding, non-reinforced weld (each measured on a piece of tape 500 mm in length at a travel speed of 100 mm / min) is increased by at least 20%, at least 30% or at least 40%.
  • the reinforcing agent is preferably formed so that the thickness of the skeleton strip in the region of the reinforcing agent is not substantially increased.
  • the reinforcing means may be formed such that the thickness of the framework strip in this area is at most 25%, at most 20%, at most 15% or at most 10% greater than the thickness of the rest of the framework strip or as the thickness of the metal strip itself.
  • the reinforcing agent may comprise, for example, a film applied to the skeleton tape and / or be formed by such a film.
  • a foil are understood to mean single or multilayer films or laminates. These are preferably made of plastics and may optionally be transparent. However, films with or made of metallic materials may also be used under certain circumstances. Suitable, for example, is a PET film which can be applied, for example, as a composite with a polyurethane heat-sealable film as an adhesive.
  • the film is preferably not more than 0.2 mm, not more than 0.15 mm, not more than 0.1 mm, not more than 0.08 mm, not more than 0.05 mm, or not more than 0.025 mm thick.
  • a PET film with 5 to 20 ⁇ or 10 to 15 ⁇ thickness can be used.
  • the film is preferably formed so that it can be glued in the region of the weld on at least one side of the metal strip.
  • the film is preferably equipped with an activatable adhesive. It may, for example, be a heat-activatable film. UV curing and / or chemical activation are also possible.
  • the film can be applied to the metal strip on one or both sides.
  • a one-sided application of the film is to realize particularly advantageous for manufacturing reasons. The one-sided application already leads to a sufficient increase in the tensile strength for many applications.
  • the reinforcing agent is applied to the side of the scaffolding strip, which forms the inside of the profile when further processed into a profile.
  • a first portion of the film is applied to the first band portion.
  • a second portion of the film is preferably applied to the second band portion.
  • the film extends at least partially over the weld, in particular at least partially over the weld.
  • the film may extend over an area having at least one, at least two or at least three slots (e.g., successive center slots) in the longitudinal direction of the skeleton.
  • the scaffolding strip according to the invention can preferably be bent into a U-shaped or V-shaped profile.
  • a U-shaped or V-shaped profile for example, several cascaded profiled sets are used in which the skeleton band is clamped between opposing rollers and bent successively.
  • the reinforcing agent preferably has an extensibility of at least 5%, at least 10%, or even at least 20%. This is advantageous since the framework band is optionally further stretched in such profiling sets.
  • the reinforcing means may be provided (optionally) primarily or even exclusively in a central area of the scaffolding strip.
  • This middle region may extend over at least 10%, at least 20%, at least 30% or at least 40% of the width of the framework, preferably over a maximum of 50%, a maximum of 40% or a maximum of 30% of the width of the framework.
  • At least one or both of the edge regions of the scaffolding strip can be recessed, whereby these edge regions preferably extend inwards transversely to the longitudinal direction of the scaffolding strip from the respective edge, for example over at least 10%, at least 25% or at least 35% of the width of the scaffolding strip. It is assumed that such a removal of the edge regions can be advantageous, in particular when using a foil applied to the metal strip as a reinforcing agent.
  • the reinforcing means will not be damaged if, when bent into a U-shaped or V-shaped profile due to the arrangement of the rollers in the edge regions of the scaffolding band to a greater abrasion or even scraping should come.
  • the reinforcing means may also extend over the entire width of the metal strip or even only in its edge regions, so that under certain circumstances, the central region may be recessed.
  • the scaffold strip according to the invention may alternatively or in addition to the film as reinforcement means comprise an adhesive (such as a curable adhesive) which is introduced in the region of the weld in one or more of the slots of the metal strip and this or at least partially fills.
  • the slotted area is at least partially bridged with the adhesive.
  • at least some or all of the center and edge slots surrounding the weld are partially or even completely filled with the adhesive.
  • the center slots can be completely filled.
  • the adhesive may be at least partially or fully cured.
  • a UV-curable adhesive is preferably used. In principle, however, also come 2-component adhesives or heat-curing adhesives.
  • an adhesive which has a relatively high viscosity at room temperature.
  • the adhesive is preferably introduced into the slots such that the top and / or bottom of the metal band remain substantially free of adhesive.
  • the adhesive may be removed after insertion into the slots of the top and / or bottom of the metal strip. This has the advantage that unintentional contamination of further metal strip areas and / or of the machines is prevented.
  • the invention relates to a method for producing a scaffolding strip, in particular a reinforced scaffolding strip of the type described above.
  • the method preferably comprises providing a metal strip having a first band portion and a second band portion, wherein the band portions are interconnected at a connection point , As well as reinforcing the metal strip in the region of the joint by a reinforcing agent.
  • the metal strip preferably has a plurality of central slots arranged transversely to the longitudinal direction of the skeleton band and / or a plurality of edge slots which are directed inward transversely to the longitudinal direction of the metal band from both edges.
  • the method may, for example, have a roll cutting and / or punching step.
  • the introduction of the slots takes place, in particular when using the roll cutting method, preferably before reinforcing the metal strip.
  • the reinforcing agent can then be applied to the metal strip and / or introduced into the slots.
  • the method according to the invention can also have a welding step, in which the band sections are connected to one another, for example via a weld seam.
  • the welding step preferably takes place before the insertion of the slots.
  • the invention thus provides various possibilities for improving the further processibility of scaffolding strips.
  • the reinforcing agents according to the invention make it possible to ensure sufficient tensile strength for further processing steps, even in the case of very light and / or thin framework straps.
  • FIG. 1A is a schematic perspective view of a scaffolding strip according to the invention according to a first embodiment
  • FIG. Fig. 1B is a schematic plan view of the skeleton tape of Figure 1 A;
  • FIG. 2A is a schematic perspective view of a scaffolding strip according to the invention according to a further embodiment
  • Fig. 2B is a schematic plan view of the skeleton tape of Figure 2A.
  • FIGS. 1A and 1B show a skeletal band 1 according to a first embodiment.
  • the skeletal band 1 has a first metal band portion 1A and a second metal band portion 1B.
  • the metal strip sections 1A, 1B are connected by a weld seam 9, indicated as a dashed line, which is preferably a TIG weld seam. After welding, the metal strip was provided with a plurality of center slots 4 in a central area 7 and a plurality of edge slots 5 in the edge areas 6.
  • the weld 9 was provided after producing the middle and edge slots 4, 5 on the top 2 of the scaffolding strip 1 with a film 10 as a reinforcing agent.
  • the film can be applied to the metal strip by means of a heat-activatable adhesive film and / or a heat-activatable adhesive film.
  • the film may, for example, have a thickness of 5 to 20 ⁇ m or 10 to 15 ⁇ m, although the film may also be thicker if the further processing of the skeleton tape permits this.
  • the adhesive film may comprise a polyurethane adhesive (e.g., a solventless polyurethane adhesive) which may be activated at a functional temperature.
  • the underside (not visible in the figures), no film is provided in the illustrated embodiment.
  • the underside is additionally provided with such a film 10.
  • the film 10 extends in the embodiment of Figures 1A and 1B over an area with two central slots 4, wherein the film could also extend further or less far in the longitudinal direction of the scaffolding strip 1 as needed.
  • the film 10 shown also extends in the central region 7, in the illustrated embodiment, without completely cover the center slots 4. However, it will be apparent to those skilled in the art from the disclosure of the present invention that, if desired, further or less extensive extension of the film in the transverse direction of the metal strip is possible.
  • the edge regions 6 no film 10 is provided. This has the advantage that the risk of peeling or tearing of the film 10 during the bending of the scaffolding strip 1 is reduced.
  • the recess of the edge regions 6 is optional.
  • FIGS. 2A and 2B show a scaffolding strip 1 according to the invention according to a second embodiment, in which the metal strip has been reinforced in the region of the weld 9 by the introduction and curing of an adhesive 20 in the middle and edge slots 4, 5, for example with UV-curing adhesive ,
  • the bond 21 in the edge region 6 partially fills the edge slots 5 and the bond 23 in the middle region 7 Middle slots 4 completely off.
  • the adhesive 20 is preferably removed from the upper side 2 and / or the (non-visible) underside of the metal strip before or after curing or the slots are preferably filled so that the adhesive 20 not even on the top and bottom of the metal strip is distributed.
  • the reinforcing means of the embodiments of FIGS. 1A, 1B and 2A, 2B can also be combined, for example by first applying adhesive 20 in the center and / or edge slots 4, 5 in the region of the weld seam 9 and then additionally applying the metal strip the application of a film 10 is enhanced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

Bande squelette (1) déformable utilisée comme insert de filet décoratif ou de segment de flan, en matériau flexible, notamment pour des profilés de pincement en caoutchouc et/ou en plastique, comprenant une bande métallique présentant une première section (1A) et une deuxième section (1B), qui sont assemblées au niveau d'un point de liaison (9), la bande squelette (1) étant pourvue, dans la zone du point de liaison, d'un moyen de renforcement (10) aux fins d'augmentation de la stabilité.
EP17725515.5A 2016-04-27 2017-04-26 Bande squelette pourvue d'un moyen de renforcement Withdrawn EP3448702A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016005074.8A DE102016005074A1 (de) 2016-04-27 2016-04-27 Gerüstband mit Verstärkungsmittel
PCT/EP2017/059988 WO2017186817A1 (fr) 2016-04-27 2017-04-26 Bande squelette pourvue d'un moyen de renforcement

Publications (1)

Publication Number Publication Date
EP3448702A1 true EP3448702A1 (fr) 2019-03-06

Family

ID=58772534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17725515.5A Withdrawn EP3448702A1 (fr) 2016-04-27 2017-04-26 Bande squelette pourvue d'un moyen de renforcement

Country Status (7)

Country Link
US (1) US20190136979A1 (fr)
EP (1) EP3448702A1 (fr)
CN (1) CN109070712A (fr)
BR (1) BR112018070800A2 (fr)
CA (1) CA3019277A1 (fr)
DE (1) DE102016005074A1 (fr)
WO (1) WO2017186817A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020101975A1 (de) * 2020-01-28 2021-07-29 Bfc Fahrzeugteile Gmbh Metallband
DE202022100638U1 (de) 2022-02-03 2023-05-09 STG Stanztechnik GmbH & Co. KG Verstärkungsband für einen Formkörper aus einer spritzfähigen Formmasse sowie Formkörper mit einem derartigen Verstärkungsband
DE202022100637U1 (de) 2022-02-03 2023-05-05 STG Stanztechnik GmbH & Co. KG Verstärkungsband für einen Formkörper aus einer spritzfähigen Formmasse sowie Formkörper mit einem derartigen Verstärkungsband
DE202022101561U1 (de) 2022-03-24 2023-06-27 Bfc Fahrzeugteile Gmbh Metallband

Family Cites Families (18)

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US3533891A (en) * 1967-12-07 1970-10-13 Wallace R Puyear Jointed strips of sheet metal and method of making same
GB1551830A (en) * 1975-09-19 1979-09-05 Draftex Dev Ag Channel-shaped guiding sealing and finishing strips
GB2031499B (en) * 1978-10-14 1982-11-03 Draftex Dev Ag Glazing vehicle windscreens
FR2438536B1 (fr) * 1978-10-14 1983-06-24 Draftex Dev Ag
GB2115042B (en) * 1982-01-25 1985-05-30 Draftex Dev Ag Channel-shaped strips
DE3824698C2 (de) * 1987-07-20 1999-05-12 Fuji Photo Film Co Ltd Verfahren und Einrichtung zum Stoßverbinden von Metallbahnen oder -bändern
US4830898A (en) * 1987-12-16 1989-05-16 Sterling Engineered Products Inc. Extruded vinyl molding incorporating a stiffener
US5199142A (en) * 1991-09-04 1993-04-06 The Gem City Engineering Co. Production of expanded metal strip for reinforcing a resilient product
ES2114275T3 (es) * 1994-10-20 1998-05-16 Draftex Ind Ltd Refuerzo para tiras de obturacion, guia y guarnicion.
US6150003A (en) * 1997-09-19 2000-11-21 Schlegel Corporation Wire carrier with reduced elongation
US6761954B2 (en) * 2001-02-27 2004-07-13 Hauser International Group Reinforced flexible laminate sealing strip and method of manufacturing same
US6926787B2 (en) * 2002-02-13 2005-08-09 Bruce H. Hauser Method of manufacturing a reinforced flexible laminate sealing strip
JP4223446B2 (ja) * 2003-10-06 2009-02-12 西川ゴム工業株式会社 自動車用ウェザーストリップ
DE102005037182A1 (de) * 2005-08-06 2007-02-15 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zum Abkleben einer Bandverbindung und Klebebandapplikator
US8256823B2 (en) * 2007-03-14 2012-09-04 Tokai Kogyo Co., Ltd. Trim and core thereof, and method and apparatus for manufacturing trim and core
DE102010019458A1 (de) 2010-05-05 2011-11-10 Landshuter Werkzeugbau Alfred Steinl Gmbh & Co. Kg Metallband als Einlage für Profilleisten und Verfahren zur Herstellung eines Metallbandes
FR2960188B1 (fr) * 2010-05-20 2012-05-18 Hutchinson Armature thermoplastique pour profile d'etancheite ou d'enjoliveur de vehicule automobile, profile l'incorporant et procede de fabrication d'armatures

Also Published As

Publication number Publication date
BR112018070800A2 (pt) 2019-02-05
DE102016005074A1 (de) 2017-11-02
US20190136979A1 (en) 2019-05-09
CN109070712A (zh) 2018-12-21
CA3019277A1 (fr) 2017-11-02
WO2017186817A1 (fr) 2017-11-02

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