WO2023118942A1 - Système et procédé de fixation d'éléments constitués de différents matériaux - Google Patents

Système et procédé de fixation d'éléments constitués de différents matériaux Download PDF

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Publication number
WO2023118942A1
WO2023118942A1 PCT/IB2021/062233 IB2021062233W WO2023118942A1 WO 2023118942 A1 WO2023118942 A1 WO 2023118942A1 IB 2021062233 W IB2021062233 W IB 2021062233W WO 2023118942 A1 WO2023118942 A1 WO 2023118942A1
Authority
WO
WIPO (PCT)
Prior art keywords
elements
fixing
shank
metal material
plastic material
Prior art date
Application number
PCT/IB2021/062233
Other languages
English (en)
Inventor
Simone GALIARDI
Original Assignee
Alga S.R.L.
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 Alga S.R.L. filed Critical Alga S.R.L.
Priority to PCT/IB2021/062233 priority Critical patent/WO2023118942A1/fr
Publication of WO2023118942A1 publication Critical patent/WO2023118942A1/fr

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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/304—Joining through openings in an intermediate part of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing

Definitions

  • the present invention concerns a fixation system specifically designed for fixing elements or parts of elements made of different materials, e.g. for fixing an element made of a plastic material to an element made of a metal material.
  • the invention further relates to a method for fixing elements or parts of elements made of different materials using the inventive fixation system.
  • the system and method of the present invention can solve the problems of the systems and methods of the prior art, and namely afford simple and effective fixation, do not require large working spaces, optimize fixation times, avoid the aesthetically unappealing use of glues, and address material compatibility issues.
  • Such assemblies are known to be obtained by means of mechanical fasteners, which are fairly quick to use and may also be quite accurate, but are generally aesthetically unpleasant, because they are visible from the outside.
  • Mechanical fasteners also generally require the formation of visible holes, required for insertion of the fastening means, possibly consisting of common screws, rivets, threaded metal inserts, etc.
  • gluing requires positioning, aligning and bonding using doublesided adhesive tapes, or chemical products, such as glues or mastics, which may have reasonable bonding times, but are quite often ineffective for instant fixation and/or for long- lasting bonding strength, especially under mechanical stresses.
  • the elements to be fixed are made of different materials
  • an assessment is required on the compatibility of the fixation system and method with the materials of the elements to be fixed. This namely includes an assessment of the type of metal that forms the metal elements, any protective coating in use, e.g. the type of paint, if any, whether or not a zinc coating is provided, etc. and an assessment of the materials of the plastic elements, which may be highly heterogeneous, each with different peculiarities.
  • the purpose of the present invention is to provide a system and a method for fixing elements or parts of elements made of different materials that can overcome the drawbacks of prior art systems and methods.
  • one object of the present invention is to provide a system for fixing elements or parts of elements made of different materials that is inexpensive, easy to manufacture and quick to use, has industrial applicability and can achieve better aesthetic results as compared with the systems of the prior art.
  • a further object of the present invention is to provide a method for fixing elements or parts of elements made of different materials that is inexpensive and quick to implement, affords effective fixation both in terms of strength and stability of the fixation and in terms of aesthetic impact.
  • Figure 1 shows a perspective view of a fixing element that is part of the fixation system of the present invention
  • Figure 2 shows a sectional view of the fixing element of Figure 1;
  • Figure 3 shows a cross-sectional view of a fixing element of the present invention according to a second embodiment
  • Figure 4 shows a view of an assembly step with the fixation system of the present invention
  • Figure 5 shows an additional assembly step with the system of the present invention in which a plurality of metal elements are fixed by means of a plurality of fixing elements to a plastic element.
  • the fixation system of the present invention for fixing elements or parts of elements 20, 30 made of different materials, namely for fixing an element made of a plastic material 30 to an element made of a metal material 20, comprises a fixing element 10 having a T- shaped cross section, as namely shown by way of example in Figures 1 and 2.
  • said fixing element 10 advantageously comprises a larger head portion 11, connected to a smaller shank 12.
  • the position of the head portion 11 is symmetrical about the shank 12, the fixing element 10 being symmetrical on a sectional plane that passes through the center axis.
  • said fixing element 10 is preferably configured with a disk-shaped head portion 11, connected to a cylindrical shank 12 , therefore the symmetry of the fixing element 10 is a cylindrical symmetry about a vertical center axis.
  • said disk-shaped head portion 11 will have a first diameter dl greater than the second diameter d2 of the cylindrical shank 12.
  • Said fixing element 10 is advantageously made of a plastic material, and will be more preferably made of the same material as the plastic element 30 to be fixed to the metal element 20.
  • at least the shank 12 of said fixing element 10 will be made of the same plastic material as the plastic element 30.
  • the metal parts 20 to be fixed are generally formed with holes 21 for insertion of fixing elements, otherwise such holes will be formed ad hoc.
  • the shanks 12 of said fixing elements 10 are inserted into said holes 21 formed in said metal part 20.
  • said shank 12 of said fixing element 10 will have a length, i.e. an axial extent equal to or slightly less than the thickness of the metal sheet.
  • said head portion 11 may advantageously have varying shapes, thicknesses, and dimensions as appropriate according to the applications. In the preferred disk configuration, said head portion 11 may have varying diameters dl and thicknesses, to avoid interference and provide the mechanical conditions for a fixation strength surface.
  • the fixation system and method for fixing elements 20, 30 or parts of elements made of different materials also affords the possibility of joining together multiple fixing elements 10 at said head portion 11 of each element, to provide a multiple fixing element 10' comprising a single extended head portion 11’ conforming in shape to the profile of the elements 20, 30 to be connected, from which a plurality of shanks 12 extends, for quick optimized positioning and instant fixation of a plurality of shanks 12 within a corresponding plurality of holes 21 formed in said metal elements 20.
  • the fixation method of the present invention provides fusion welding of the shanks 12 of said fixing elements 10, 10' to the plastic element 30. Since said fixing elements 10, 10', or at least the shanks 12 of said fixing elements, are made of the same material as the plastic element 30 with which it has to be connected, such welding is optimal.
  • the fixation method of the present invention which uses said fixing elements 10, 10', may further comprise a step of bonding the elements 20, 30 made of different materials using glues or mastics, to achieve a greater overall fixation strength and/or to fill any gaps that may remain between said elements 20, 30 as a result of complex profiles and/or surfaces that are not perfectly smooth.
  • the system and method for fixing elements or parts of elements 20, 30 made of different materials according to the present invention provides a novel, cost-effective and industrially applicable solution to the problems of prior art systems, while affording improved fixation, also in aesthetic terms, as compared with prior art gluing solutions.
  • the system and method for fixing elements or parts of elements 20, 30 made of different materials according to the present invention avoids the need for repeated handling of the components, and hence the need for a larger working space, and reduces fixation times, by no longer requiring the use of temporary locking means, such as grippers and clamps, for gluing, which not exclude the risk of undesired displacements or offsets when gluing and during glue curing due to the viscosity of the glue and the weight of the components.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)

Abstract

La présente invention concerne un système de fixation permettant de fixer des éléments ou des parties d'éléments constitués de matériaux différents, permettant par exemple de fixer un élément en matière plastique à un élément en matériau métallique. L'invention concerne en outre un procédé permettant de fixer des éléments ou des parties d'éléments, constitués de matériaux différents, au moyen du système de fixation de l'invention. Le système de fixation de l'invention comprend un ou plusieurs éléments de fixation (10, 10') présentant une section transversale en T, et comprenant une partie tête plus grande reliée à au moins une tige plus petite. Au moins la tige (12) de chaque élément, parmi le ou les éléments de fixation, est constituée de la même matière plastique que l'élément en matière plastique (30) auquel ledit élément de fixation (10) doit fixer ledit élément en matériau métallique (20).
PCT/IB2021/062233 2021-12-23 2021-12-23 Système et procédé de fixation d'éléments constitués de différents matériaux WO2023118942A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/062233 WO2023118942A1 (fr) 2021-12-23 2021-12-23 Système et procédé de fixation d'éléments constitués de différents matériaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/062233 WO2023118942A1 (fr) 2021-12-23 2021-12-23 Système et procédé de fixation d'éléments constitués de différents matériaux

Publications (1)

Publication Number Publication Date
WO2023118942A1 true WO2023118942A1 (fr) 2023-06-29

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ID=80168275

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/062233 WO2023118942A1 (fr) 2021-12-23 2021-12-23 Système et procédé de fixation d'éléments constitués de différents matériaux

Country Status (1)

Country Link
WO (1) WO2023118942A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130122246A1 (en) * 2011-11-11 2013-05-16 GM Global Technology Operations LLC Structural members and methods of making a structural joint
CN105690739A (zh) * 2016-03-22 2016-06-22 天津大学 一种使金属和塑料良好连接的超声波塑料铆焊方法
US20170057005A1 (en) * 2015-08-27 2017-03-02 GM Global Technology Operations LLC Method of joining multiple components and an assembly thereof
DE102019114832A1 (de) * 2019-06-03 2020-12-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Fügeelement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130122246A1 (en) * 2011-11-11 2013-05-16 GM Global Technology Operations LLC Structural members and methods of making a structural joint
US20170057005A1 (en) * 2015-08-27 2017-03-02 GM Global Technology Operations LLC Method of joining multiple components and an assembly thereof
CN105690739A (zh) * 2016-03-22 2016-06-22 天津大学 一种使金属和塑料良好连接的超声波塑料铆焊方法
DE102019114832A1 (de) * 2019-06-03 2020-12-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Fügeelement

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