DE102008020880A1 - Joint connection for housing of e.g. front headlight, of motor vehicle, has sealant attached between joint sections, designed as hot fusion adhesive and applied at one of joint sections such that sealant remains at joint section - Google Patents
Joint connection for housing of e.g. front headlight, of motor vehicle, has sealant attached between joint sections, designed as hot fusion adhesive and applied at one of joint sections such that sealant remains at joint section Download PDFInfo
- Publication number
- DE102008020880A1 DE102008020880A1 DE102008020880A DE102008020880A DE102008020880A1 DE 102008020880 A1 DE102008020880 A1 DE 102008020880A1 DE 102008020880 A DE102008020880 A DE 102008020880A DE 102008020880 A DE102008020880 A DE 102008020880A DE 102008020880 A1 DE102008020880 A1 DE 102008020880A1
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- Germany
- Prior art keywords
- joining
- housing
- sealant
- joint
- closure element
- 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.)
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Classifications
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- 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
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- 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
- B29C65/40—Applying molten plastics, e.g. hot melt
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- 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
- B29C65/76—Making non-permanent or releasable joints
-
- 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
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
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- 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
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
- B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
- F21S43/51—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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- 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
- B29C66/73921—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 characterised by the materials of both parts being thermoplastics
-
- 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
- B29C66/7394—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 thermoset
- B29C66/73941—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 thermoset characterised by the materials of both parts being thermosets
-
- 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
Abstract
Description
Die vorliegende Erfindung betrifft eine Fügeverbindung für ein Gehäuse, insbesondere für das Gehäuse einer Beleuchtungseinrichtung wie ein Frontscheinwerfer eines Kraftfahrzeugs, eine Heckleuchte, eine Signal-, Markierungs- oder Funktionsleuchte oder eines elektronischen Gerätes und dergleichen, wobei das Gehäuse wenigstens eine Öffnung aufweist, die mit einem Verschlusselement wiederlösbar verschlossen ist, wobei zwischen den durch das Gehäuse und das Verschlusselement gebildeten Fügepartnern eine Dichtmasse eingebracht ist.The The present invention relates to a joint for a housing, in particular for the housing a lighting device such as a headlight of a motor vehicle, a tail lamp, a signal, marking or function light or an electronic device and the like, wherein the housing has at least one opening, the closed with a closure element releasably closed is, between between the housing and the closure element formed joining partners a sealant is introduced.
Die Fügeverbindung zwischen dem Gehäuse und einem Verschlusselement ist häufig dauerhaft druck- und mediendicht auszuführen. Die Öffnungen innerhalb des Gehäuses dienen häufig zu Servicezwecken, beispielsweise zum Austausch des Leuchtmittels. Jedoch kann die Öffnung innerhalb des Gehäuses auch verstanden werden als Fügegeometrie zu einem weiteren Gehäuseteil, das folglich durch das Verschlusselement gebildet werden kann. Beispielsweise bei Rückleuchten von Kraftfahrzeugen ist ein transparenter Deckel erforderlich, wobei rückseitig ein aus einem nicht durchsichtigen Kunststoff gebildeter zweiter Teil mit dem transparenten vorderen Teil dauerhaft druck- und mediendicht verschlossen werden muss. Neben Anwendungsbereichen zum Bau von Scheinwerfern, die im Sinne der vorliegenden Erfindung sämtliche Beleuchtungseinrichtungen für ein Kraftfahrzeug umfassen, können auch elektronische Komponenten und Abdeckkappen mit einem Verschlusselement verschlossen werden.The Joint connection between the housing and a Closure element is often permanently pressure- and media-tight perform. The openings within the housing They are often used for service purposes, such as exchanges of the bulb. However, the opening within the Housing also be understood as joining geometry a further housing part, which consequently by the closure element can be formed. For example, in taillights of Motor vehicles require a transparent lid, where the back of a non-transparent plastic educated second part with the transparent front part permanently and media-tight must be closed. In addition to application areas for Construction of headlamps, in accordance with the present invention all Comprise lighting devices for a motor vehicle, can also use electronic components and caps be closed with a closure element.
Um eine dauerhaft druck- und mediendichte Verbindung zwischen dem Gehäuse und dem Verschlusselement zu schaffen, sind Dichtwerkstoffe wie Gummidichtungen, EPDM-Schaumdichtungen, Moosgummidichtungen oder geschäumtes Polyurethan bekannt. Nachteilhaft sind jedoch die vergleichsweise hohen notwendigen Klemmkräfte zur Erzeugung einer ausreichenden Dichtwirkung, mit der die Fügepartner aufeinander gedrückt werden müssen. Die mit den genannten Werkstoffen hergestellten Dichtstellen weisen keine eigene Dichtigkeit aus sich heraus auf, sondern erreichen erst über eine mechanisch aufgebrachte, dauerhaft anliegende Schließkraft, im Folgenden als Dichtkraft bezeichnet, eine Dichtigkeit, wobei die mechanische Dichtkraft den Dichtwerkstoff zwischen den Füge- bzw. Dichtpartnern hält.Around a permanently pressure- and media-tight connection between the housing and the closure element are sealing materials such as rubber seals, EPDM foam gaskets, sponge rubber gaskets or foamed Polyurethane known. However, the disadvantages are the comparatively high necessary clamping forces to produce a sufficient Sealing effect with which the joining partners pressed on each other Need to become. Made with the materials mentioned Seals do not have their own tightness on their own, but reach only via a mechanically applied, permanently applied closing force, hereinafter referred to as sealing force denotes a tightness, wherein the mechanical sealing force the Holding sealing material between the joining or sealing partners.
Aus
der
Das
mechanische Verhalten sowie die chemische Zusammensetzung eines
derartigen Heißschmelzklebstoffes ist der
Es ist folglich die Aufgabe der vorliegenden Erfindung, eine Fügeverbindung für ein Gehäuse vorzuschlagen, bei dem ein wiederholtes Lösen der Fügeverbindung zwischen dem Verschlusselement und der Öffnung des Gehäuses ermöglicht ist, wobei die Anwendung neuartiger Fügestoffe die genannten Nachteile herkömmlicher Dichtelemente überwindet.It is therefore the object of the present invention, a joint connection to propose for a housing in which a repeated Release the joint connection between the closure element and the opening of the housing allows is, wherein the application of novel joining substances, the disadvantages mentioned overcomes conventional sealing elements.
Diese Aufgabe wird ausgehend von einer Fügeverbindung für ein Gehäuse gemäß dem Oberbegriff des Anspruches 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.These Task is based on a joint connection for a housing according to the preamble of Claim 1 solved in conjunction with the characterizing features. Advantageous developments of the invention are in the dependent Claims specified.
Die Erfindung schließt die technische Lehre ein, dass die Dichtmasse als Heißschmelzklebstoff ausgebildet ist und an einem der Fügepartner derart aufgebracht ist, dass die Dichtmasse beim Lösen der Verbindung an diesem Fügepartner verbleibt.The The invention includes the technical teaching that the sealant is designed as a hot melt adhesive and at one of Joining partner is applied so that the sealant when loosening the connection to this joining partner remains.
Die Verwendung von Heißschmelzklebstoffen zur Herstellung einer wiederlösbaren Fügeverbindung für ein Gehäuse gemäß der im Oberbegriff genannten Art zum Abdichten eines zugeordneten Verschlusselementes ist bislang nicht bekannt. Insbesondere der Austausch herkömmlicher Dichtsysteme, wie Gummidichtungen, EPDM-Schaumdichtungen oder Moosgummidichtungen durch einen Heißschmelzklebstoff ermöglicht die Überwindung der eingangs genannten Nachteile. Zu nennen sind insbesondere die nicht weiter erforderliche Aufbringung hoher Anpresskräfte zur Abdichtung gegen die herkömmlichen Dichtwerkstoffe, da ein Heißschmelzklebstoff aufgrund seiner Materialeigenschaften bereits aus sich heraus eine Dichtigkeit bereitstellt, sobald der Heißschmelzklebstoff mit den Fügepartnern in Kontakt gebracht ist. Klemmelemente wie Spangen, Schnappverbinder, Federdrähte oder gar Schraubverbindungen sind im derzeitigen Stand der Technik üblichen Umfang bzw. der Dimensionierung nicht erforderlich, um die notwendige dauerhaft druck- und mediendichte Verbindung zwischen den beiden Fügepartnern zu gewährleisten.The use of hot-melt adhesives for producing a detachable joint connection for a housing according to the type mentioned in the preamble for sealing an associated Ver Final element is not yet known. In particular, the replacement of conventional sealing systems, such as rubber seals, EPDM foam seals or sponge rubber seals by a hot melt adhesive allows overcoming the disadvantages mentioned above. Particularly noteworthy are the application of high contact forces for sealing against the conventional sealing materials, since a hot melt adhesive already provides a seal on its own due to its material properties as soon as the hot melt adhesive is brought into contact with the joining partners. Clamping elements such as clips, snap connectors, spring wires or even screw are customary in the current state of the art scope or dimensioning not required to ensure the necessary permanently pressure and media-tight connection between the two joining partners.
Die Anwendung des Heißschmelzklebstoffes kann auf die verschiedensten Anwendungsbereiche erweitert werden, wobei insbesondere ein Scheinwerfer einen feuchtigkeitsdichten Innenraum zur Aufnahme empfindlicher optischer oder sonstiger elektronischer Geräte aufweist, so dass die Verwendung eines Heißschmelzklebstoffes zum wiederlösbaren Verschließen von Verschlusselementen gegen Öffnungen, die im Gehäuse eingebracht sind, besondere Vorteile bietet. Insbesondere kann vorgesehen sein, dass die Dichtmasse derart in eine der beiden Fügepartner eingebracht ist, dass diese beim Lösen der Verbindung in diesem Fügepartner verbleibt. Wird die Verbindung hergestellt, so ergibt sich zumeist eine geschlossene Dichtkontur zwischen der Öffnung im Scheinwerfergehäuse und dem darauf aufgebrachten Verschlusselement. Ist die Dichtmasse in einem der beiden Fügepartner derart aufgenommen, dass der andere Fügepartner von der Dichtmasse getrennt werden kann, so kann die Dichtmasse in Form des Heißschmelzklebstoffes im übrigen Fügepartner verbleiben. Eine vollständige Trennung des Heißschmelzklebstoffes von beiden Fügepartnern ist nicht weiter erforderlich.The Application of the hot melt adhesive can vary widely Be extended applications, in particular a headlight a moisture-proof interior for recording more sensitive having optical or other electronic devices, so that the use of a hot melt adhesive for releasable closing of closure elements against openings made in the housing, offers special advantages. In particular, it can be provided that introduced the sealant in one of the two joining partners is that this when releasing the connection in this joining partner remains. If the connection is made, it usually results a closed sealing contour between the opening in the headlight housing and the closure element applied thereto. Is the sealant recorded in one of the two joining partners in such a way that the other joining partners are separated from the sealant can, so the sealant in the form of hot melt adhesive remain in the remaining joint partner. A complete Separation of the hot melt adhesive from both joining partners is not required anymore.
Der Fügepartner, in dem die Dichtmasse nach dem Lösen der Verbindung verbleibt, kann durch das Verschlusselement gebildet werden. Die Dichtmasse kann in einem U-förmigen Dichtbett aufgenommen sein, wobei das U-förmige Dichtbett am Rand des Verschlusselementes ausgebildet ist. Das Verschlusselement kann einen Deckel oder eine Verschlusskappe bilden, die in Richtung zur Öffnung des Scheinwerfergehäuses ein umlaufendes Dichtbett aufweist, in das der Heißschmelzklebstoff zum dauerhaften Verbleib eingebracht ist. Alternativ kann der Fügepartner, in dem die Dichtmasse nach dem Lösen der Verbindung verbleibt, durch das Gehäuse selbst gebildet sein, wobei das U-förmige Dichtbett am Rand der Öffnung ausgebildet ist. Folglich verbleibt der Heißschmelzklebstoff im Dichtbett des Gehäuses, auch wenn das Verschlusselement von der Öffnung im Gehäuse entfernt wird.Of the Joining partner, in which the sealant after loosening the connection remains can be formed by the closure element become. The sealant can in a U-shaped sealing bed be included, with the U-shaped sealing bed on the edge the closure element is formed. The closure element can form a lid or cap that faces towards the opening the headlight housing has a circumferential sealing bed, in which the hot melt adhesive for permanent whereabouts is introduced. Alternatively, the joining partner, in the the sealant remains after releasing the connection, be formed by the housing itself, the U-shaped Density bed is formed at the edge of the opening. consequently the hot-melt adhesive remains in the sealing bed of the housing, even if the closure element from the opening in the housing Will get removed.
Gemäß einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Fügeverbindung weist die Öffnung im Gehäuse einen umlaufenden Fügesteg auf, der sich zum Verschließen der Öffnung in das U-förmige Dichtbett im Verschlusselement hinein erstreckt. Der umlaufende Fügesteg ist an dem Fügepartner angebracht, der dem Fügepartner gegenüber steht, an dem das U-förmige Dichtbett ausgebildet ist. Folglich kann auch das Verschlusselement einen umlaufenden Fügesteg aufweisen, sofern am Rand der Öffnung am Gehäuse das U-förmige Dichtbett ausgebildet ist. Werden die beiden Fügepartner miteinander gefügt, so ragt der umlaufende Fügesteg in das U-förmige Dichtbett hinein. Folglich umschließt der Heißschmelzklebstoff den umlaufenden Fügesteg ebenfalls U-förmig, so dass eine druck- und mediendichte Verbindung zwischen dem U-förmigen Dichtbett und dem umlaufenden Fügesteg erzeugt wird.According to one further advantageous embodiment of the invention Joint connection has the opening in the housing a circumferential joint that closes the opening in the U-shaped sealing bed in the closure element inside extends. The circumferential joint is at the joining partner attached, which faces the joint partner, where the U-shaped sealing bed is formed. consequently can also the closure element has a circumferential joint provided that at the edge of the opening on the housing the U-shaped sealing bed is formed. Be the two Joining partners joined together, the peripheral joint protrudes into the U-shaped sealing bed. Consequently encloses the hot melt adhesive the circumferential joint also U-shaped, so that a pressure and media density Connection between the U-shaped sealing bed and the circulating Joint is generated.
Um einen manuellen Zugang zur Dichtmasse zu schaffen, kann das U-förmige Dichtbett im Bereich wenigstens eines der Schenkel der U-Form eine Aussparung aufweisen. Der manuelle Zugang zur Dichtmasse kann erforderlich sein, um diese von einem der beiden Fügepartner zu lösen. Dabei bietet sich eine Aussparung in einem der beiden Schenkel des U-förmigen Dichtbettes an. Betrachtet man das Dichtbett im Querschnitt, so ergeben sich ein innenliegender und ein außenliegender Schenkel, zwischen denen der Heißschmelzklebstoff aufgenommen ist. Vorzugsweise ist die Aussparung im außenseitig umlaufenden Schenkel des U-förmigen Dichtbettes eingebracht, um eine manuelle Zugänglichkeit zur Dichtmasse auch im gefügten Zustand des Verschlusselementes am Gehäuse zu ermöglichen. Muss die Fügeverbindung zwischen dem Verschlusselement und der Öffnung im Gehäuse gelöst werden, so kann der Heißschmelzklebstoff von dem Fügepartner lokal abgelöst werden, an dem der Heißschmelzklebstoff nach Trennung der Fügeverbindung nicht haften bleibt. Ist beispielsweise das U-förmige Dichtbett am Verschlusselement ausgebildet, so verbleibt der Heißschmelzklebstoff auch nach Trennung der Fügeverbindung am Verschlusselement haften. Ist im äußeren umlaufenden Bereich des U-förmigen Dichtbettes eine Aussparung eingebracht, so kann der Heißschmelzklebstoff lokal vom umlaufenden Fügesteg am Rand der Öffnung des Gehäuses abgelöst werden.Around To create a manual access to the sealant, the U-shaped Density bed in the area of at least one of the legs of the U-shape a Have recess. Manual access to the sealant may be required to be solved by one of the two joining partners. This offers a recess in one of the two legs of the U-shaped sealing bed. Looking at the sealing bed in cross-section, this results in an internal and an external Thighs between which the hot melt adhesive was added is. Preferably, the recess in the outer circumferential Leg of the U-shaped sealing bed introduced to a manual accessibility to the sealant also in the joined Condition of the closure element to allow the housing. Got to the joint connection between the closure element and the opening dissolved in the housing, so can the hot melt adhesive be detached from the joining partner locally the hot melt adhesive after separation of the joint does not stick. For example, is the U-shaped sealing bed formed on the closure element, the hot melt adhesive remains even after separation of the joint connection on the closure element be liable. Is in the outer circumferential area of the U-shaped sealing bed a recess introduced, so The hot melt adhesive can be applied locally from the surrounding joint detached at the edge of the opening of the housing become.
Die Ablösung dient als Trennungsinitialisierung, auf die folgend die Trennung des umlaufenden Steges aus der Dichtmasse im Dichtbett weitergeführt werden kann.The Replacement serves as a separation initialization following the following the separation of the circumferential ridge of the sealant in the sealing bed can be continued.
Dabei muss lediglich eine Trennungskraft auf das Verschlusselement aufgebracht werden, um den umlaufenden Fügesteg in der Öffnung des Gehäuses aus dem Heißschmelzklebstoff zu lösen. Die Ablösung erfolgt dabei rückstandsfrei, wobei der Ablösevorgang einem Schälvorgang entspricht. Folglich kann das Verschlusselement nicht in einer einfachen Hubbewegung aus der Öffnung des Gehäuses herausgezogen werden, sondern die Trennung der Fügeverbindung erfolgt entsprechend dem umlaufenden Fügesteg kontinuierlich. Durch Aufbringen einer länger anhaltenden, kontinuierlich wirkenden Trennungskraft und einer seitlichen Abkippbewegung des Verschlusselementes kann dieses aus der Öffnung des Gehäuses gelöst werden. Dabei ist die Schälgeschwindigkeit der Dichtmasse vom zu trennenden Fügepartner zu beachten. Diese sollte nicht überschritten werden, um sicherzustellen, dass der Heißschmelzklebstoff im U-förmigen Dichtbett verbleibt.there only a separation force must be applied to the closure element be to the circumferential joint in the opening of the housing from the hot melt adhesive to solve. The replacement takes place without residue, with the detachment process corresponds to a peeling process. Consequently, the closure element can not in a simple lifting movement be pulled out of the opening of the housing, but the separation of the joint connection is carried out accordingly the circumferential joint continuously. By applying a longer-lasting, continuously acting separation force and a lateral tilting movement of the closure element can this detached from the opening of the housing become. Here is the peeling speed of the sealant to be observed by the joint partner to be separated. This should be not be exceeded to ensure that the Hot melt adhesive remains in the U-shaped sealing bed.
Die Materialien der Fügepartner können sowohl aus der Gruppe der thermoplastischen oder duroplastischen Kunststoffe bestehen, wobei auch Materialien aus der Gruppe der Keramiken oder der Metalle, umfassend ein Stahlwerkstoff oder ein Nichteisenmetall, möglich sind. Ferner kann die Oberfläche mindestens eines der beiden Fügepartner eine Beschichtung aufweisen, wobei insbesondere metallische Werkstoffe bevorzugt beschichtet ausgeführt sind. Unabhängig von dem Material sowohl des Gehäuses als auch des Verschlusselementes kann ein erfindungsgemäßer Heißschmelzklebstoff Verwendung finden, da die Adhäsionseigenschaften einer derartigen Klebeverbindung über einen weiten Werkstoffbereich in hinreichendem Maße gegeben sind.The Materials of the joining partners can both from the group of thermoplastic or thermosetting plastics There are also materials from the group of ceramics or the metals comprising a steel material or a non-ferrous metal, possible are. Furthermore, the surface can be at least one of the two joining partners have a coating, in particular metallic materials preferably coated are executed. Regardless of the material both the housing as well as the closure element may be an inventive Hot melt adhesive can be used as the adhesion properties Such an adhesive bond over a wide range of materials are given to a sufficient extent.
Eine weitere Ausführungsform der erfindungsgemäßen Fügeverbindung kann ein Initiatorelement aufweisen, das zur lokal begrenzten Trennung zwischen der Dichtmasse und einem der beiden Fügepartner dient. Das Initiatorelement kann eine Art Hebelelement darstellen, das mit einer Hebelbewegung die Verbindung des umlaufenden Fügesteges innerhalb des U-förmigen Dichtbettes vom Heißschmelzklebstoff trennt. Die Trennung durch das Initiatorelement erfolgt nur lokal begrenzt, wobei die vollständige Trennung der beiden Fügepartner durch eine manuell fortgeführte Schalung des Heißschmelzklebstoffes vom umlaufenden Fügesteg erfolgt.A another embodiment of the invention Joining compound may include an initiator element that for localized separation between the sealant and a serves the two joining partners. The initiator element may be a Represent type lever element, the connection with a lever movement of the circumferential joint within the U-shaped Separate sealing bed from the hot melt adhesive. The separation by the initiator element is only limited locally, the full Separation of the two joining partners by a manually continued Forming of the hot-melt adhesive from the circumferential joint he follows.
Gemäß einer weiteren vorteilhaften Ausführungsform ist das Verschlusselement mittels einer Gelenkverbindung schwenkbar am Gehäuse angeordnet, wobei die Aussparung und/oder das Initiatorelement an der der Gelenkverbindung abgewandten Seite des Verschlusselementes angeordnet ist. Schwenkbar angebrachte Verschlusselemente wie Kappen, Deckel oder dergleichen, die mit einer Gelenkverbindung am Gehäuse angebracht sind, weisen häufig an der der Gelenkverbindung gegenüberliegenden Seite eine Schnappverbindung oder ein Klammerelement auf, um das Verschlusselement gegen das Scheinwerfergehäuse zu drücken. Derartige Schnappverbinder, hebelartige Verschlusselemente und dergleichen können erfindungsgemäß als Initiatorelement verwendet werden, um zur Trennung des Heißschmelzklebstoffes vom umlaufenden Fügesteg durch eine hebelartige Einwirkung das Verschlusselement von der Öffnung im Gehäuse abzulösen. Insbesondere durch die Klapp- oder Schwenkbewegung des Verschlusselementes kann eine saubere Abschälung des Heißschmelzklebstoffes erfolgen, da die Trennung des Verschlusselementes durch eine Schwenkbewegung über dem Rand der Öffnung des Gehäuses eingeleitet wird.According to one Another advantageous embodiment is the closure element pivotally mounted on the housing by means of a hinge connection, wherein the recess and / or the initiator element at the articulation opposite side of the closure element is arranged. swiveling attached closure elements such as caps, lids or the like, which are attached to the housing with a hinge connection, often have the opposite of the hinge joint Side a snap connection or a clamp element to the Press locking element against the headlight housing. Such snap connectors, lever-like closure elements and the like can according to the invention as an initiator element used to separate the hot melt adhesive from the circumferential joint by a lever-like action the closure element from the opening in the housing replace. In particular, by the folding or pivoting movement of the Closure element can be a clean peel off the hot melt adhesive take place, since the separation of the closure element by a pivoting movement over initiated the edge of the opening of the housing becomes.
Die vorliegende Erfindung betrifft ferner ein Verfahren zum Lösen einer Fügeverbindung zwischen wenigstens zwei Fügepartnern, wobei der erste Fügepartner durch ein Gehäuse, insbesondere durch das Gehäuse einer Beleuchtungseinrichtung wie ein Frontscheinwerfer eines Kraftfahrzeugs, eines elektronischen Gerätes und dergleichen, gebildet ist, und wobei der zweite Fügepartner durch ein Verschlusselement zur Bildung eines lösbaren Verschlusses wenigstens einer Öffnung am Gehäuse gebildet ist, und wobei die Fügeverbindung eine Dichtmasse aufweist. Erfindungsgemäß wird die Dichtmasse durch einen Heißschmelzklebstoff gebildet und mittels einer Trennungsinitialisierung von einem der beiden Fügepartner lokal begrenzt getrennt, um eine vollständige Trennung zwischen dem Heißschmelzklebstoff und einem der Fügepartner einzuleiten.The The present invention further relates to a method for releasing a joint connection between at least two joining partners, wherein the first mating partner by a housing, in particular through the housing of a lighting device such as a headlight of a motor vehicle, an electronic Device and the like, is formed, and wherein the second Joining partner by a closure element to form a releasable closure of at least one opening is formed on the housing, and wherein the joint connection having a sealant. According to the invention the sealant formed by a hot melt adhesive and by means of a separation initialization of one of the two Joining partners locally limited separately to a complete Separation between the hot melt adhesive and one of the Initiate joining partner.
Mittels einer Trennungsinitialisierung von einem der beiden Fügepartner kann der Heißschmelzklebstoff lokal begrenzt abgetrennt werden, um eine vollständige Trennung zwischen dem Heißschmelzklebstoff und dem Fügepartner einzuleiten. Durch die Trennung wird eine Schälbewegung zwischen der Dichtmasse und einem der Fügepartner eingeleitet, wobei ferner eine einfache Ablösebewegung zwischen der Dichtmasse und einem der Fügepartner derart eingeleitet werden kann, bei der die Fügepartner entgegen ihrer Fügebewegung voneinander weg bewegt werden. Die Ablösbewegung, bei der entlang des umlaufenden Fügesteges der Heißschmelzklebstoff durch eine gleichmäßige Bewegung insgesamt getrennt wird, kann durch ein Initiatorelement unterstützt werden. Zwischen dem Gehäuse und dem Verschlusselement kann folglich wenigstens ein Schnappverbinder vorgesehen sein, der zugleich als Initiatorelement wirkt und mit dem die Ablösebewegung zwischen der Dichtmasse und einem der beiden Fügepartner eingeleitet wird.through a Trennungsinitialisierung of one of the two joining partners the hot melt adhesive can be separated locally limited Be sure to complete separation between the hot melt adhesive and the joining partner. By the separation will a peeling movement between the sealant and one of Joined joint, with further a simple detachment movement between the sealant and one of the joining partners in such a way can be initiated, in which the joining partners against their joining movement are moved away from each other. The detachment movement, in the along the circumferential joint of hot melt adhesive separated by a uniform movement altogether can be supported by an initiator element. Consequently, between the housing and the closure element be provided at least one snap connector, at the same time as an initiator element acts and with the the detachment movement between the sealant and one of the two joining partners is initiated.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt.Other, the invention improving measures will be described below together with the Description of a preferred embodiment of the invention with reference to the figures shown in more detail.
Es zeigen:It demonstrate:
Die Öffnung
Ferner
ist ein Initiatorelement
Die vorliegende Erfindung beschränkt sich in ihrer Ausführung nicht auf das vorstehend angegebene bevorzugte Ausführungsbeispiel. Vielmehr ist eine Anzahl von Varianten denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch macht.The The present invention is limited in its execution not to the preferred embodiment given above. Rather, a number of variants is conceivable, which of the illustrated Solution even with fundamentally different kind Designs makes use.
- 11
- Gehäusecasing
- 22
- Öffnungopening
- 33
- Verschlusselementclosure element
- 44
- Dichtmassesealant
- 55
- U-förmiges DichtbettU-shaped Density bed
- 66
- Fügestegjoining web
- 77
- Aussparungrecess
- 88th
- Initiatorelementinitiator element
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1312461 B1 [0004] - EP 1312461 B1 [0004]
- - EP 1108771 B1 [0005] - EP 1108771 B1 [0005]
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102008020880A DE102008020880A1 (en) | 2008-04-25 | 2008-04-25 | Joint connection for housing of e.g. front headlight, of motor vehicle, has sealant attached between joint sections, designed as hot fusion adhesive and applied at one of joint sections such that sealant remains at joint section |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008020880A DE102008020880A1 (en) | 2008-04-25 | 2008-04-25 | Joint connection for housing of e.g. front headlight, of motor vehicle, has sealant attached between joint sections, designed as hot fusion adhesive and applied at one of joint sections such that sealant remains at joint section |
Publications (1)
Publication Number | Publication Date |
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DE102008020880A1 true DE102008020880A1 (en) | 2009-10-29 |
Family
ID=41111792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102008020880A Withdrawn DE102008020880A1 (en) | 2008-04-25 | 2008-04-25 | Joint connection for housing of e.g. front headlight, of motor vehicle, has sealant attached between joint sections, designed as hot fusion adhesive and applied at one of joint sections such that sealant remains at joint section |
Country Status (1)
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DE (1) | DE102008020880A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625796A (en) * | 1969-09-15 | 1971-12-07 | Gen Motors Corp | Method of making a motor vehicle lamp assembly |
DE8109310U1 (en) * | 1981-03-30 | 1981-11-12 | Vulkan Werk für Industrie- und Außenbeleuchtung GmbH, 5000 Köln | "TUB MOUNT FOR A LAMP, IN PARTICULAR BOX LAMP" |
DE19515207A1 (en) * | 1994-04-26 | 1995-11-02 | Koito Mfg Co Ltd | Vehicle lighting unit with a connector that is protected against vibrations |
US5516390A (en) * | 1993-07-21 | 1996-05-14 | Aica Kogyo Co., Ltd. | Method of sealing a vehicle lighting fixture |
US5934799A (en) * | 1996-07-08 | 1999-08-10 | Koito Manufacturing Co., Ltd. | Vehicular lamp body coupled to lens with dielectric bonding agent, and method thereof |
DE19943130A1 (en) * | 1998-09-11 | 2000-03-23 | Koito Mfg Co Ltd | Lamp for vehicle has sealing part of weakly adhesive hot-fused mass in gel state that causes surface efflorescence when front lens is separated |
DE19956422A1 (en) * | 1999-11-24 | 2001-06-13 | Hella Kg Hueck & Co | Detachable adhesives for joining substrates |
US6340236B1 (en) * | 1999-04-28 | 2002-01-22 | The Yokohama Rubber Co., Ltd. | Hot melt adhesive composition |
-
2008
- 2008-04-25 DE DE102008020880A patent/DE102008020880A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625796A (en) * | 1969-09-15 | 1971-12-07 | Gen Motors Corp | Method of making a motor vehicle lamp assembly |
DE8109310U1 (en) * | 1981-03-30 | 1981-11-12 | Vulkan Werk für Industrie- und Außenbeleuchtung GmbH, 5000 Köln | "TUB MOUNT FOR A LAMP, IN PARTICULAR BOX LAMP" |
US5516390A (en) * | 1993-07-21 | 1996-05-14 | Aica Kogyo Co., Ltd. | Method of sealing a vehicle lighting fixture |
DE19515207A1 (en) * | 1994-04-26 | 1995-11-02 | Koito Mfg Co Ltd | Vehicle lighting unit with a connector that is protected against vibrations |
US5934799A (en) * | 1996-07-08 | 1999-08-10 | Koito Manufacturing Co., Ltd. | Vehicular lamp body coupled to lens with dielectric bonding agent, and method thereof |
DE19943130A1 (en) * | 1998-09-11 | 2000-03-23 | Koito Mfg Co Ltd | Lamp for vehicle has sealing part of weakly adhesive hot-fused mass in gel state that causes surface efflorescence when front lens is separated |
US6340236B1 (en) * | 1999-04-28 | 2002-01-22 | The Yokohama Rubber Co., Ltd. | Hot melt adhesive composition |
DE19956422A1 (en) * | 1999-11-24 | 2001-06-13 | Hella Kg Hueck & Co | Detachable adhesives for joining substrates |
EP1108771B1 (en) | 1999-11-24 | 2004-05-06 | Hella KG Hueck & Co. | Soluble adhesives for joining substrates |
EP1312461B1 (en) | 1999-11-24 | 2005-01-12 | Hella KGaA Hueck & Co. | Joining connection and process for producing a joining connection |
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