DE10255453A1 - Foamed vehicle seat part manufacture involves coverage of areas of the molding tool with a reactive polyurethane before filling the tool with plastic foam - Google Patents
Foamed vehicle seat part manufacture involves coverage of areas of the molding tool with a reactive polyurethane before filling the tool with plastic foam Download PDFInfo
- Publication number
- DE10255453A1 DE10255453A1 DE10255453A DE10255453A DE10255453A1 DE 10255453 A1 DE10255453 A1 DE 10255453A1 DE 10255453 A DE10255453 A DE 10255453A DE 10255453 A DE10255453 A DE 10255453A DE 10255453 A1 DE10255453 A1 DE 10255453A1
- Authority
- DE
- Germany
- Prior art keywords
- foam
- tool
- plastic
- molded body
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Herstellen eines Schaumstoff-Formkörpers sowie auf einen verfahrensgemäß hergestellten Formkörper, nach dem Oberbegriff des Patentanspruchs 1 bzw. 9.The invention relates to a Process for producing a foam molded article and on a process produced according to the process Moldings, 9 according to the preamble of claim 1.
Es ist bekannt, Sitzteile von Kraftfahrzeugen als Weichschaumkörper mit integrierten Verstärkungseinlagen herzustellen und diese anschließend sitzflächenseitig mit einem vorkonfektionierten Textilkleid zu beziehen, welches am Weichschaumkörper an zuvor miteingeschäumten Befestigungselementen verhakt wird. Um die Schaumstoffstruktur auf der vom Textilkleid unbedeckten Unter- oder Rückseite des Sitzteils gegen Beschädigungen vor allem im Auflagebereich des Sitzgestells zu schützen, werden diese Bereiche mit einem verschleißfesten Überzug, zumeist aus einem Kunststoffgewebe, versehen. Zu diesem Zweck wird ein entsprechender Gewebezuschnitt manuell im Schäumwerkzeug derart fixiert, dass er sich beim nachfolgenden Schaumeintrag fest und faltenfrei mit der Schaumstoftstruktur verbindet. Vor dem Einbau des so gefertigten Sitzteils wird schließlich noch ein Gleitmittel auf den Schutzüberzug aufgesprüht, durch welches die durch den sogenannten Stick-Slip-Effekt verursachten Knarzgeräusche im Auflagebereich des Sitzgestells verhindert werden sollen.It is known to seat parts of motor vehicles Soft foam body with integrated reinforcement inserts to produce and then on the seat side available with a ready-made textile dress, which on Soft foam body previously foamed Fasteners is hooked. To get the foam structure on the bottom or back of the seat part, which is not covered by the textile dress damage to protect them, especially in the seating area of the seat frame Areas with a wear-resistant coating, mostly made of a plastic fabric. For this purpose, a corresponding Tissue cutting manually in the foaming tool fixed in such a way that it becomes firm during the subsequent foam entry and wrinkle-free connects with the foam structure. Before installation the seat part thus manufactured finally becomes a lubricant on the protective cover sprayed, through which those caused by the so-called stick-slip effect creaking noises should be prevented in the seating area of the seat frame.
Aufgabe der Erfindung ist es, ein Verfahren und einen Schaumstoff-Formkörper der eingangs genannten Art so auszubilden, dass der Herstellungsaufwand wesentlich reduziert wird.The object of the invention is a Method and a foam molded body of the aforementioned Type in such a way that the manufacturing effort is significantly reduced becomes.
Diese Aufgabe wird erfindungsgemäß durch das im Patentanspruch 1 gekennzeichnete Verfahren bzw. den im Anspruch 9 gekennzeichneten Schaumstoff-Formkörper gelöst.This object is achieved by the characterized in claim 1 or the method in claim 9 marked foam molded body solved.
Erfindungsgemäß wird mit Hilfe des Schäumwerkzeugs nicht nur der Schaumkörper selbst, sondern im gleichen Arbeitsprozess auch in definierten Flächenbereichen des Schaumkörpers ein mit diesem integral verbundener Überzug aus einem verschleißfesten und geräuschmindernden Kunststoffmaterial angefertigt. Dies erspart das manuelle Einlegen eines vorgefertigten Gewebezuschnitts und das nachträgliche Aufsprühen eines Antiknarzmittels, mit der Folge einer deutlichen Fertigungsvereinfachung, was gerade bei der Großserienfertigung von Kraftfahrzeug-Sitz- oder Rückenlehnenpolstern ein ganz entscheidender Vorteil ist. Da das Mehrkomponentengemisch beim Schaumeintrag zumindest teilweise ausgehärtet ist, wird zugleich eine Eindringen von Schaumstoffmaterial in den Gemischauftrag wirksam verhindert und somit eine einwandfreie Beschaffenheit des Kunststoffüberzugs garantiert.According to the invention with the help of the foaming tool not just the foam body itself, but in the same work process also in defined areas of the foam body with this integrally bonded coating from a wear-resistant and noise-reducing plastic material prepared. This saves manually inserting a pre-made one Fabric cutting and the subsequent spray on an anticrystalline, with the result of a significant simplification of production, what especially in the mass production of motor vehicle seat or backrest cushions is a crucial advantage. Because the multi-component mixture is at least partially cured when the foam is introduced, at the same time becomes a Penetration of foam material effective in the mixture application prevented and thus a perfect condition of the plastic coating guaranteed.
Um unerwünschte Fließbewegungen des im Ausgangszustand viskosen Mehrkomponentengemisches im Schäumwerkzeug zu unterbinden und die Wartezeit zwischen dem Auftragen und dem Erreichen des – zumindest teilweise – ausgehärteten Gemischzustands, also bis zum Schaumeintrag, zu verkürzen und dadurch den Herstellungsprozess weiter zu beschleunigen, wird für den Kunststoffüberzug vorzugsweise ein hochreaktives Mehrkomponentengemisch verwendet und/oder das Formwerkzeug vor dem Aufbringen des Mehrkomponentengemisches vorgeheizt. In weiterer, fertigungsmäßiger Vereinfachung wird das Mehrkomponentengemisch zweckmäßigervveise robotergesteuert auf die Formfläche des Schäumwerkzeugs aufgetragen, und zwar bevorzugt als Sprühnebel in der Weise, dass die einzelnen Gemischkomponenten ohne unerwünschte Vorreaktion erst am Sprühkopf vermischt und dann in feiner Ver teilung und im bereits anreagierten Zustand auf die Formfläche des Schäumwerkzeugs gelangen.To undesired flow movements of the in the initial state to prevent viscous multi-component mixtures in the foaming tool and the waiting time between application and reaching the - at least partially - hardened mixture state, that is, until the foam is introduced, thereby shortening the manufacturing process will accelerate further for preferably the plastic coating uses a highly reactive multi-component mixture and / or that Preheated molding tool before applying the multi-component mixture. In further, manufacturing simplification the multi-component mixture is expediently robot-controlled on the molding surface of the foaming applied, preferably as a spray in such a way that the individual mixture components without an undesired pre-reaction only on spray nozzle mixed and then in fine distribution and in the already reacted Condition on the molding surface of the foaming tool reach.
Als besonders geeignetes Kunststoffmaterial für den Formkörperüberzug hat sich Polyurethan erwiesen, welches im ausgehärteten Zustand eine hohe Festigkeit und Bruchdehnung besitzt. In besonders bevorzugter Weise wird das eingangs erwähnte, vorkonfektionierte Textilkleid unmittelbar am Kunststoffüberzug befestigt, so dass auf die sonst erforderlichen, miteingeschäumten Befestigungselemente verzichtet werden kann.Has as a particularly suitable plastic material for the molded article coating proved polyurethane, which has a high strength in the cured state and has elongation at break. This is particularly preferred prefabricated Textile dress attached directly to the plastic cover, so that on dispenses with the otherwise necessary, foamed-in fastening elements can be.
Die Erfindung wird nunmehr anhand eines Ausführungsbeispiels in Verbindung mit den Zeichnungen näher erläutert. Es zeigen in stark schematisierter Darstellung:The invention is now based on of an embodiment explained in connection with the drawings. It show in a highly schematic Presentation:
Die in den Fig. dargestellten Kraftfahrzeug-Sitzteile
Zur Herstellung des Formkörpers
Sobald der Kunststoff zumindest teilweise ausgehärtet ist,
wird das Schäumwerkzeug
Nach dem Entformen des Weichschaumkörpers
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10255453A DE10255453A1 (en) | 2002-11-28 | 2002-11-28 | Foamed vehicle seat part manufacture involves coverage of areas of the molding tool with a reactive polyurethane before filling the tool with plastic foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10255453A DE10255453A1 (en) | 2002-11-28 | 2002-11-28 | Foamed vehicle seat part manufacture involves coverage of areas of the molding tool with a reactive polyurethane before filling the tool with plastic foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10255453A1 true DE10255453A1 (en) | 2004-06-09 |
Family
ID=32308786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10255453A Withdrawn DE10255453A1 (en) | 2002-11-28 | 2002-11-28 | Foamed vehicle seat part manufacture involves coverage of areas of the molding tool with a reactive polyurethane before filling the tool with plastic foam |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10255453A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005018916A1 (en) * | 2003-08-20 | 2005-03-03 | Johnson Controls Gmbh | Upholstery part, in particular equipment for the interior of a motor vehicle, method for producing said part and seat |
| WO2006105874A1 (en) * | 2005-04-04 | 2006-10-12 | Johnson Controls Gmbh | Upholstery element and production process |
| DE102008022898A1 (en) * | 2008-05-08 | 2009-11-12 | Faurecia Autositze Gmbh | Vehicle seat i.e. motor vehicle seat, manufacturing method for land vehicle, involves molding dimensionally stable seat cushion subshell made of plastic using injection mold, where seat cushion subshell is padded |
| DE102013007335A1 (en) | 2013-04-27 | 2014-10-30 | Sitech Sitztechnik Gmbh | Durable antique resin coating |
| DE102023201780A1 (en) | 2023-02-27 | 2024-08-29 | Volkswagen Aktiengesellschaft | Evidence of anti-creaking agent treatment of foam elements with a fluorescent anti-creaking agent |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035489A1 (en) * | 1969-07-18 | 1971-01-28 | Allied Chemical Corp , New York, NY (VStA) | Seat structure and process for its manufacture |
| DE3718064C1 (en) * | 1987-05-28 | 1988-12-15 | Grammer Sitzsysteme Gmbh | Back-foamed cushion part |
| DE3817509A1 (en) * | 1988-05-24 | 1989-12-07 | Solvay Werke Gmbh | METHOD FOR PRODUCING SHAPED ITEMS |
| DE3926421A1 (en) * | 1989-08-10 | 1991-02-14 | Bayerische Motoren Werke Ag | Seat for vehicles - made of specified lining for producing in polyurethane foam mould |
| DE4107454A1 (en) * | 1991-03-08 | 1992-09-10 | Basf Ag | COMPOSITION ELEMENTS FROM A COVER AND SUPPORT LAYER OF THERMOPLASTIC POLYURETHANES, A METHOD FOR THEIR PRODUCTION AND THEIR USE |
| EP0642411B1 (en) * | 1992-05-18 | 1997-12-10 | Recticel | Method for manufacturing self-supporting synthetic trim parts |
-
2002
- 2002-11-28 DE DE10255453A patent/DE10255453A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035489A1 (en) * | 1969-07-18 | 1971-01-28 | Allied Chemical Corp , New York, NY (VStA) | Seat structure and process for its manufacture |
| DE3718064C1 (en) * | 1987-05-28 | 1988-12-15 | Grammer Sitzsysteme Gmbh | Back-foamed cushion part |
| DE3817509A1 (en) * | 1988-05-24 | 1989-12-07 | Solvay Werke Gmbh | METHOD FOR PRODUCING SHAPED ITEMS |
| DE3926421A1 (en) * | 1989-08-10 | 1991-02-14 | Bayerische Motoren Werke Ag | Seat for vehicles - made of specified lining for producing in polyurethane foam mould |
| DE4107454A1 (en) * | 1991-03-08 | 1992-09-10 | Basf Ag | COMPOSITION ELEMENTS FROM A COVER AND SUPPORT LAYER OF THERMOPLASTIC POLYURETHANES, A METHOD FOR THEIR PRODUCTION AND THEIR USE |
| EP0642411B1 (en) * | 1992-05-18 | 1997-12-10 | Recticel | Method for manufacturing self-supporting synthetic trim parts |
Non-Patent Citations (2)
| Title |
|---|
| VIEWEG,Richard,u.a.: Plyurethane, Kunststoff-Handbuch,Bd.VII, Carl Hanser-Verlag München,1966,S.479 * |
| VIEWEG,Richard,u.a.: Plyurethane, Kunststoff-Handbuch,Bd.VII, Carl Hanser-Verlag München,1966,S.479; |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005018916A1 (en) * | 2003-08-20 | 2005-03-03 | Johnson Controls Gmbh | Upholstery part, in particular equipment for the interior of a motor vehicle, method for producing said part and seat |
| WO2006105874A1 (en) * | 2005-04-04 | 2006-10-12 | Johnson Controls Gmbh | Upholstery element and production process |
| DE102008022898A1 (en) * | 2008-05-08 | 2009-11-12 | Faurecia Autositze Gmbh | Vehicle seat i.e. motor vehicle seat, manufacturing method for land vehicle, involves molding dimensionally stable seat cushion subshell made of plastic using injection mold, where seat cushion subshell is padded |
| DE102013007335A1 (en) | 2013-04-27 | 2014-10-30 | Sitech Sitztechnik Gmbh | Durable antique resin coating |
| DE102013007335B4 (en) | 2013-04-27 | 2023-06-01 | Sitech Sitztechnik Gmbh | Durable anti-squeak coating |
| DE102023201780A1 (en) | 2023-02-27 | 2024-08-29 | Volkswagen Aktiengesellschaft | Evidence of anti-creaking agent treatment of foam elements with a fluorescent anti-creaking agent |
| DE102023201780B4 (en) | 2023-02-27 | 2025-06-12 | Volkswagen Aktiengesellschaft | Evidence of anti-creak treatment of foam elements with a fluorescent anti-creak agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |