DE2740071C3 - Verfahren zum Verbinden von Bauteilen von Scheinwerfern oder Leuchten für Kraftfahrzeuge - Google Patents

Verfahren zum Verbinden von Bauteilen von Scheinwerfern oder Leuchten für Kraftfahrzeuge

Info

Publication number
DE2740071C3
DE2740071C3 DE2740071A DE2740071A DE2740071C3 DE 2740071 C3 DE2740071 C3 DE 2740071C3 DE 2740071 A DE2740071 A DE 2740071A DE 2740071 A DE2740071 A DE 2740071A DE 2740071 C3 DE2740071 C3 DE 2740071C3
Authority
DE
Germany
Prior art keywords
insert part
component
metal
thermoplastic material
headlights
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
Application number
DE2740071A
Other languages
English (en)
Other versions
DE2740071A1 (de
DE2740071B2 (de
Inventor
Olivier Paris Puyplat
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.)
Cibie Projecteurs SA
Original Assignee
Cibie Projecteurs 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 Cibie Projecteurs SA filed Critical Cibie Projecteurs SA
Publication of DE2740071A1 publication Critical patent/DE2740071A1/de
Publication of DE2740071B2 publication Critical patent/DE2740071B2/de
Application granted granted Critical
Publication of DE2740071C3 publication Critical patent/DE2740071C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3424—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding said at least a single wire having the form of a coil spring
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/362—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3624—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising at least a single wire, e.g. in the form of a winding said at least a single wire having the form of a coil spring
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • 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
    • 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
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/73—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 characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • 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
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • 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
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/71—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 characterised by the composition of the plastics material of 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
    • 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
    • B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
    • B29C66/7465—Glass
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/08—Transition metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/747—Lightning equipment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249922—Embodying intertwined or helical component[s]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249923—Including interlaminar mechanical fastener

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Verbinden von Bauteilen von Scheinwerfern oder Leuchten für Kraftfahrzeuge gemäß dem Oberbegriff des Patentanspruchs 1.
Bei der Herstellung von Scheinwerfern und verschiedenen anderen Leuchten für Kraftfahrzeuge ergibt sich die Notwendigkeit, ein Bauteil aus einem anorganischen Werkstoff wie z. B. Metall oder Glas mit einem zweiten Bauteil aus schlecht verklebbarem thermoplastischen Kunststoff, ζ. B. einem Polyolefin, zu verbinden. Dieses Verbindungsproblem tritt insbesondere dort auf, wo eine Abdeckscheibe aus Glas an einem Reflektor aus polyolefinhaltigem Werkstoff befestigt werden soll, die mit den derzeit verwendeten Klebstoffen nicht miteinander verklebt werden können. Bestenfalls lassen sich eine Frontabdeckscheibe aus Glas und ein Reflektor aus einem Polyolefin unter Verwendung hochentwickelter und somit teurer Klebstoffe zusammenfügen, jedoch ist eine derartige Verbindung von geringer Festigkeit gegenüber Schwindungen und Stößen, und dichtet den optischen Block nur sehr schlecht ab. Ferner sind derartige Klebstoffe, soweit sie überhaupt existieren, hitzehärtbare Harze, die nur langsam trocknen oder polymerisieren, was einen größeren Nachteil dann darstellt, wenn sie in einer verketteten Fertigungsanlage mit kurzen Taktzeiten Anwendung finden. Analoge Schwierigkeiten ergeben sich zum Beispiel beim Zusammenfügen eines Gehäuses oder Sockels aus thermoplastischem Kunststoff mit einer Trägcplatte
IQ aus Metall.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der im Oberbegriff des Patentanspruchs 1 beschriebenen Gattung zu schaffen, das es gestattet, ein Bauteil aus anorganischen Werkstoff mit einem Bauteil aus schlecht verklebbaren thermoplastischem Kunststoff ohne Verwendung von teurem Klebstoff mit hoher Festigkeit in kurzer Zeit dicht zu verbinden und mit dem sich beispielsweise Scheinwerfer für Kraftfahrzeuge erzielen lassen, bei denen die Fügung eine sehr gute
mechanische Festigkeit sowie eine sehr gute Dichtheit aufweist
Diese Aufgabe ist erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen des erfindungsgemäßen
Verfahrens sind in den Unteransprüchen beschrieben.
An Ausführungsbeispielen wird die Erfindung im folgenden anhand scbematischer Zeichnungen näher erläutert. Es zeigen
F i g. 1 bis 3 perspektivische Teilansichten eines
aufgeschnittenen optischen Blocks vor und nach dem Verbinden einer Frontabdeckscheibe mit einem Reflektor und
Fig.4 bis 6 perspektivische Teilansichten eines aufgeschnittenen Scheinwerfers für ein Kraftfahrzeug vor und nach dem Verbinden seines Gehäuses mit der Frontabdeckscheibe.
Der in F i g. 1 bis 3 dargestellte Reflektor 10 sowie das Gehäuse 30 gemäß Fig.4 bis 6 sind aus einem thermoplastischen Kunststoff auf Poivolefin-Basis her gestellt, beispielsweise aus Polydienen auf Isopren-Basis wie Polychlorisopren, Polychlorisopren-Butadien, Polyoxyisopren und Polythiooxyisopren, aus Polyvinylen wie die Polyvinylacetale, namentlich Polyvinylacetat und Polyvinylformal, wie Polymethyl-a-chloracrylat,
« Polymethylmethacrylat, Polyvinylacetat, aus Polyvinylhalogeniden wie nachchloriertem Polyvinylchlorid, Polyvinyltrifluorchlorid, sowie aus Polyvinyl-Kohlenwasserstoffen wie Polybutylen, Polyäthylen, Polymethylstyrol, Polystyrol, Polyvinylcarbazol etc, alles Werk- stoffe, die nicht in zufriedenstellender Weise mit einem anorganischen Werkstoff, wie z. B. Glas oder Metall, verklebt werden können.
Cei dem in F i g. 1 bis 3 dargestellten Beispiel wird der aus einem Polyvinyl hergestellte Reflektor 10 mit einer Frontabdeckscheibe 12 aus Glas verbunden.
Der Reflektor 10 endet in einem Flansch 14, der eine Verbindungsfläche 16 und einen dazu im wesentlichen rechtwinkligen Rand 18 hat Die Frontabdeckscheibe 12 endet in einem entsprechenden Kragen 20, dessen Anlagefläche 22 dazu bestimmt ist, mit der Verbindungsfläche 16 zusammenzuwirken.
Im Flansch 14 wird ein Ersatzteil 24 so verankert, daß es noch teilweise herausragt. In den dargestellten Beispielen ist das Einsatzteil 24 als Wendel aus Metall ausgebildet; die Wendelform 24 ist vorteilhaft, da sie bei gekrümmten Konturen leicht anzuwenden ist. Das Verankern des Einsatzteils 24 kann dadurch erleichtert sein, daß in der Verbindungsfläche 16 des Flansches 14
eine Nut 26 vorgesehen ist
Zum Verankern des wendeiförmigen Einsatzteils 24 aus Metall wird dieses während einer festgelegten Zeitdauer, z. B. durch elektrische Widerstandswirkung oder induktiv, gewärmt und mit einem bestimmten Druck in den durch die Erwärmung vorübergehend erweichenden thermoplastischen Werkstoff des Flansches 14 eingedrückt
Nach Beendigung dieser ersten Phase des Verfahrens ragt ein freier Verankerungsabschnitt des Einsatzteils 24 aus der Verbindungsteile 16 des Flansches 14 heraus.
Der Reflektor 10 und die Frontabdeckscheibe 12 werden sodann durch Auftragen einer Klebstoffschicht 28 miteinander verbunden. Die Klebstoffschicht 28 haftet einerseits am Kragen 20 der Frontabdeckscheibe 12 und umschließt andererseits den genannten freien Verankerungsabschnitt des Einsatzteils 24 vollständig. Dieser Klebevorgang bietet jetzt keinerlei Schwierigkeit mehr, da es Klebstoffe gibt, die anorganische Werkstoffe wie Glas zu kleben vermögen. Ein derartiger Klebstoff, beispielsweise Epoxidharz, haftet am Kragen 20 der Frontabdeckscheibe 12 einwandfrei und hält den freien Verankerungsabschnitt des Einsatzteils 24 gefangen, was nach dem Abbinden des Klebstoffs zum Entstehen einer mechanisch festen und dichten Verbindung zwischen dem Reflektor 10 und der Frontabdeckscheibe 12 führt
Der am Flansch 14 des Reflektors 10 ausgebildete Rand 18 verhindert das Überlaufen der Klebstoffschicht 28 und ermöglicht, daß diese den Kragen 20 zumindest teilweise umschließt, was zu einer noch haltbaren Verbindung führt
Das Verfahren kann auch, wie in Fig.4 bis 6 dargestellt, zum Verbinden eines Gehäuses 30 mit einer Frontabdeckscheibe 12 angewandt werden und wird in diesem Falle in exakt gleicher Weise wie vorstehend beschrieben durchgeführt.
Hierzu 2 Blatt Zeichnungen

Claims (7)

Patentansprüche:
1. Verfahren zum Verbinden von Bauteilen von Scheinwerfern oder Leuchten für Kraftfahrzeuge mittels eines Klebstoffs, wobei ein Bauteil aus anorganischem Werkstoff, z.B. Metall oder Glas, und ein anderes Bauteil aus schlecht verklebbarem thermoplastischem Kunststoff besteht, insbesondere zum Verkleben eines Reflektors oder eines Gehäuses mit einer Frontabdeckscheibe aus Silikatglas oder einer Trägerplatte aus Metall, dadurch gekennzeichnet, daß an dem Bauteil aus thermoplastischem Kunststoff (10,30) ein Einsatzteil (24) in der Verbindungsfläche (16) so verankert wird, daß es noch teilweise aus diesem Bauteil (10, 30) herausragt, und daß dann eine solche Klebstoffschicht (28) zwischen die Bauteile eingebracht wird, daß der herausragende Teil des Einsatzteils (24) vollständig innerhalb der Klebstoffschicht liegt.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Einsatzteil (24) aus Metall verwendet wird.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß als Einsatzteil (24) eine Wendel aus Metall verwendet wird.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in die Verbindungsfläche (16) des Bauteils (10; 30) aus thermoplastischem Werkstoff zum Positionieren des Einsatzteils (24) eine Nut (26) eingearbeitet wird.
5. Verfahret nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß >jm Verankern des Einsatzteils (24) dieses auf eine vorbestimmte Temperatur erwärmt und in das Bauteil aus thermoplastischem Kunststoff eingedrückt wird.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Erwärmung des metallischen Einsatzteils (24) durch Ausnutzen elektrischer Widerstandswirkung erzielt wird.
7. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das metallische Verbindungsstück (24) induktiv erwärmt wird.
DE2740071A 1976-09-08 1977-09-06 Verfahren zum Verbinden von Bauteilen von Scheinwerfern oder Leuchten für Kraftfahrzeuge Expired DE2740071C3 (de)

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ES462032A1 (es) 1978-06-01
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FR2364188B1 (de) 1979-07-06
BR7705954A (pt) 1978-06-20
US4106969A (en) 1978-08-15
JPS5335283A (en) 1978-04-01
AR215267A1 (es) 1979-09-28
DE2740071A1 (de) 1978-03-16
DE2740071B2 (de) 1978-08-10
YU198677A (en) 1982-05-31

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