DE102007017467A1 - Steering wheel with foam surround and method for producing a steering wheel - Google Patents
Steering wheel with foam surround and method for producing a steering wheel Download PDFInfo
- Publication number
- DE102007017467A1 DE102007017467A1 DE102007017467A DE102007017467A DE102007017467A1 DE 102007017467 A1 DE102007017467 A1 DE 102007017467A1 DE 102007017467 A DE102007017467 A DE 102007017467A DE 102007017467 A DE102007017467 A DE 102007017467A DE 102007017467 A1 DE102007017467 A1 DE 102007017467A1
- Authority
- DE
- Germany
- Prior art keywords
- steering wheel
- foam
- soft
- leather
- top layer
- 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.)
- Ceased
Links
- 239000006260 foam Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000010985 leather Substances 0.000 claims abstract description 24
- 239000006261 foam material Substances 0.000 claims abstract description 11
- 230000035484 reaction time Effects 0.000 claims abstract description 3
- 238000005187 foaming Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000011162 core material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
- B62D1/06—Rims, e.g. with heating means; Rim covers
-
- 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
- B29C44/08—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 using several expanding or moulding steps
- B29C44/083—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another
- B29C44/086—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another and feeding more material into the enlarged cavity
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
Die Erfindung betrifft ein Lenkrad mit Umschäumung, die auf ein Lenkradskelett aufgebracht ist. Insbesondere zur Erzielung einer gewünschten Weichheit des Lenkradkranzes und der geforderten Oberflächenhärte der Lenkradverkleidung besteht die Umschäumung (2, 6, 10, 14) zumindest an ausgewählten Abschnitten des Lenkrades aus einem weichen formbeständigen Schaummaterial, das von einer härteren Deckschicht (3, 8) oder einer Lederummantelung (12, 16) umgeben ist. Ein Verfahren zur Herstellung einer Verkleidung für ein Lenkrad ist erfindungsgemäß dadurch gekennzeichnet, dass das Lenkradskelett in einer ersten Schäumform mit einem weichen formbeständigen Schaummaterial bedeckt wird und dass das vorgeschäumte Lenkrad nach Ablauf der Reaktionszeit in einer zweiten Schäumform mit einer härteren Deckschicht überschäumt wird oder mit einer Lederverkleidung versehen wird.The invention relates to a steering wheel with foam, which is applied to a steering wheel skeleton. In particular, to achieve a desired softness of the steering wheel rim and the required surface hardness of the steering wheel cover, the foam (2, 6, 10, 14) at least at selected portions of the steering wheel of a soft, dimensionally stable foam material, by a harder cover layer (3, 8) or a Leather sheath (12, 16) is surrounded. A method for producing a lining for a steering wheel according to the invention is characterized in that the steering wheel skeleton is covered in a first foam mold with a soft, dimensionally stable foam material and that the prefoamed steering wheel is foamed after the reaction time in a second foam mold with a harder cover layer or with a Leather cover is provided.
Description
Die Erfindung betrifft ein Lenkrad nach dem Oberbegriff des Anspruchs 1 und ein Verfahren zur Herstellung eines Lenkrades nach dem Oberbegriff des Anspruchs 9.The The invention relates to a steering wheel according to the preamble of the claim 1 and a method of manufacturing a steering wheel according to the preamble of Claim 9.
Lenkräder bestehen aus einem Lenkradskelett als tragende Metallstruktur, die umhüllt ist, wobei zur Umhüllung vorwiegend PUR-Schäume verwendet werden, die die funktionalen, geometrischen, optischen und haptischen Eigenschaften des Lenkrades gewährleisten. Diese PUR-Schäume müssen, um die Anforderungen an das Lenkrad auf Lebensdauer zu erfüllen, bestimmten Anforderungen an die Oberflächengüte entsprechen, die in der Regel in Spezifikationen beschrieben sind. Einer der dort geforderten Punkte ist die Oberflächenhärte, die maßgeblich die Abriebfestigkeit bestimmt. Die Umhüllung wird in den meisten Fällen in einem Vorgang durch Schäumen geformt oder bei Lederlenkrädern wird zusätzlich auf den Schaum eine Verkleidung aus Leder aufgebracht.steering wheels consist of a steering wheel skeleton as a supporting metal structure, the is enveloped, wherein the envelope predominantly PUR foams which are the functional, geometric, optical and to ensure haptic properties of the steering wheel. These polyurethane foams need to meet the requirements to meet the steering wheel on life Meet surface quality requirements, which are usually described in specifications. One of required there is the surface hardness, which decisively determines the abrasion resistance. The serving will in most cases in a process by foaming molded or in leather steering wheels is additional Applied to the foam a cover made of leather.
Aus
der
Weiterhin
ist aus der
Der Erfindung liegt die Aufgabe zugrunde, mit geringerem Aufwand einerseits eine gewünschte Weichheit des Lenkradkranzes und andererseits die geforderte Oberflächenhärte der Lenkradverkleidung zu erzielen.Of the Invention is based on the object with less effort on the one hand a desired softness of the steering wheel rim and on the other hand the required surface hardness of the steering wheel cover too achieve.
Erfindungsgemäß wird das durch einen Lenkradaufbau gemäß Anspruch 1 und durch ein Verfahren zur Herstellung eines Lenkrades gemäß Anspruch 9 erreicht.According to the invention that by a steering wheel assembly according to claim 1 and by a method of manufacturing a steering wheel according to claim 9 reached.
Bei einem Lenkrad mit Umschäumung, die auf ein Lenkradskelett aufgebracht ist, besteht die Umschäumung erfindungsgemäß zumindest an ausgewählten Abschnitten des Lenkrades aus einem weichen formbeständigen Schaummaterial, das von einer härteren Deckschicht oder einer Lederummantelung umgeben ist.at a steering wheel with foam, which is on a steering wheel skeleton is applied, the foam according to the invention at least on selected sections of the steering wheel from a soft dimensionally stable foam material, that of a harder Cover layer or a leather casing is surrounded.
Durch diesen Aufbau des Lenkrades wird mit geringerem Aufwand eine gewünschte weiche Haptik und die erforderliche Härte der Oberfläche des Lenkrades erreicht.By This structure of the steering wheel is a lesser effort a desired soft feel and the required hardness of the surface reached the steering wheel.
Die härtere Deckschicht besteht vorzugsweise aus einem designgebenden Schaumstoff, wie er bei Lenkrädern des Standes der Technik bereits verwendet wird. Obwohl bei Lenkrädern mit einer Lederumhüllung die härtere Deckschicht entfallen kann, ist diese Deckschicht bei einer Variante zumindest teilweise noch mit Leder abgedeckt.The harder top layer preferably consists of a design-giving Foam, as in steering wheels of the prior art already used. Although with steering wheels with a Leather covering the harder top layer accounts can, this cover layer is at least partially in a variant still covered with leather.
Die Berührungsflächen des weichen Schaummaterials und der härteren Deckschicht weisen zur Verhinderung einer Verdrehung beider Schichten gegeneinander geometrische Strukturen auf. Dabei können sowohl regelmäßige geometrische Strukturen wie Zylinder, Pyramiden, Nuten oder Furchen als auch unregelmäßige geometrische Strukturen, wie z. B. eine grobe Erodierstruktur vorgesehen sein. Infolge dieser geometrischen Strukturen ist zwischen den beiden Schichten oder zwischen der weichen Schicht und der Lederumhüllung eine ausreichende Reibung vorhanden, die eine Verdrehung der Schichten gegeneinander bzw. der Lederumhüllung gegenüber der weicheren Schicht verhindert.The Contact surfaces of the soft foam material and the harder top layer have to prevent Twisting of both layers against each other geometric structures. It can be both regular geometric Structures like cylinders, pyramids, grooves or furrows as well irregular geometric structures, such. B. be provided a coarse erosion structure. As a result of this geometric Structures is between the two layers or between the soft ones Layer and the leather cladding sufficient friction present, which is a rotation of the layers against each other or the leather cladding over the softer layer prevented.
Ein Verfahren zur Herstellung einer Verkleidung für ein Lenkrad ist erfindungsgemäß dadurch gekennzeichnet, dass das Lenkradskelett in einer ersten Schäumform mit einem weichen formbeständigen Schaummaterial bedeckt wird, und dass das vorgeschäumte Lenkrad nach Ablauf der Reaktionszeit in einer zweiten Schäumform mit einer härteren Deckschicht überschäumt wird oder mit einer Lederverkleidung versehen wird.One Method for producing a lining for a steering wheel is inventively characterized in that the steering wheel skeleton in a first foaming mold with a soft dimensionally stable foam material is covered, and that the prefoamed steering wheel at the end of the reaction time foamed in a second foaming mold with a harder top layer or covered with leather.
Es ist zweckmäßig, dass auf die Innenwand der ersten Schäumform die geometrische Struktur der Berührungsfläche des weichen Schaummaterials mit der in der zweiten Schäumform aufzubringenden Deckschicht aufgebracht wird. Obwohl die Deckschicht bei einem Lederlenkrad entfallen kann, kann aber auch die härtere Deckschicht mit Leder überzogen werden.It is expedient that on the inner wall of the first Foaming mold the geometric structure of the contact surface of the soft foam material with that in the second foam mold applied cover layer is applied. Although the top layer can be omitted in a leather steering wheel, but can also be the harder Cover layer to be covered with leather.
Die Erfindung soll in Ausführungsbeispielen anhand von Zeichnungen erläutert werden. Es zeigen:The Invention is intended in embodiments with reference to drawings be explained. Show it:
Bei
dem in der
Bei
der Ausführungsform der
Bei
der Ausführungsform der
Bei
der Ausführungsform der
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 0446394 A1 [0003] EP 0446394 A1 [0003]
- - DE 10036069 A1 [0004] - DE 10036069 A1 [0004]
Claims (11)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007017467A DE102007017467A1 (en) | 2007-04-11 | 2007-04-11 | Steering wheel with foam surround and method for producing a steering wheel |
| PCT/EP2008/054289 WO2008125566A1 (en) | 2007-04-11 | 2008-04-09 | Steering wheel comprising foam cladding and method for producing a steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007017467A DE102007017467A1 (en) | 2007-04-11 | 2007-04-11 | Steering wheel with foam surround and method for producing a steering wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102007017467A1 true DE102007017467A1 (en) | 2008-10-16 |
Family
ID=39673237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007017467A Ceased DE102007017467A1 (en) | 2007-04-11 | 2007-04-11 | Steering wheel with foam surround and method for producing a steering wheel |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102007017467A1 (en) |
| WO (1) | WO2008125566A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2961155A1 (en) * | 2010-06-10 | 2011-12-16 | Peugeot Citroen Automobiles Sa | Fly-wheel for controlling displacements of system e.g. vehicle such as automobile, has resistant band separated from enveloping trim in order to cut trim for disintegration of reinforcement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114987359A (en) * | 2022-06-28 | 2022-09-02 | 延锋汽车智能安全系统有限责任公司 | Steering wheel decoration piece |
| DE102022214458A1 (en) | 2022-12-31 | 2024-07-11 | Joyson Safety Systems Germany Gmbh | Steering handle for a vehicle and method for producing a steering handle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0446394A1 (en) | 1990-03-15 | 1991-09-18 | Petri AG | Steering wheel manufacturing process |
| DE10059133A1 (en) * | 2000-11-29 | 2001-08-16 | Trw Automotive Safety Sys Gmbh | Method for making vehicle steering wheel involves casting one-piece skeleton with hub, spoke and rim and then covering rim with soft foam and then sticking on further leather covering |
| DE10036069A1 (en) | 2000-07-17 | 2002-02-07 | Takata Petri Ag | Steering wheel and method for manufacturing a steering wheel |
| DE10123520C1 (en) * | 2001-05-15 | 2002-10-10 | Trw Automotive Safety Sys Gmbh | Production of a steering wheel comprises manufacturing a steering wheel frame having a closed annular section with an open hollow profile, inserting a body into the open hollow profile, and coating the frame with foam and/or leather |
| DE60214943T2 (en) * | 2001-08-20 | 2007-06-14 | Trw Vehicle Safety Systems Inc., Lyndhurst | Thermoplastic polyolefin elastomer steering wheel |
| DE102006031859A1 (en) * | 2006-07-10 | 2008-01-17 | Trw Automotive Safety Systems Gmbh | Steering wheel for motor vehicle, has outer skin surrounding rim sleeve, and spoke connecting steering wheel rim and hub, where outer skin consists of compact or foamed polyurethane-casting elastomer in specific layer thickness |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3227000A (en) * | 1961-11-20 | 1966-01-04 | Gits Jules Paul | Molded articles and methods of making same |
| IT1237285B (en) * | 1989-11-22 | 1993-05-27 | Gallino Componenti Plastici | PROCEDURE FOR THE MANUFACTURE BY PLASTIC MOLDING OF A MOTOR VEHICLE STEERING WHEEL, WITH THE APPEARANCE OF A STEERING WHEEL COVERED IN NATURAL LEATHER, AND STEERING WHEEL OBTAINED THROUGH SUCH PROCEDURE |
| US20040076816A1 (en) * | 2002-10-22 | 2004-04-22 | Trw Vehicle Safety Systems Inc. | Wrapped steering wheel free of adhesive interface |
| CN1925968B (en) * | 2004-01-03 | 2011-04-20 | 约翰逊控制技术公司 | Vehicle component and method for making a vehicle component |
-
2007
- 2007-04-11 DE DE102007017467A patent/DE102007017467A1/en not_active Ceased
-
2008
- 2008-04-09 WO PCT/EP2008/054289 patent/WO2008125566A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0446394A1 (en) | 1990-03-15 | 1991-09-18 | Petri AG | Steering wheel manufacturing process |
| DE10036069A1 (en) | 2000-07-17 | 2002-02-07 | Takata Petri Ag | Steering wheel and method for manufacturing a steering wheel |
| DE10059133A1 (en) * | 2000-11-29 | 2001-08-16 | Trw Automotive Safety Sys Gmbh | Method for making vehicle steering wheel involves casting one-piece skeleton with hub, spoke and rim and then covering rim with soft foam and then sticking on further leather covering |
| DE10123520C1 (en) * | 2001-05-15 | 2002-10-10 | Trw Automotive Safety Sys Gmbh | Production of a steering wheel comprises manufacturing a steering wheel frame having a closed annular section with an open hollow profile, inserting a body into the open hollow profile, and coating the frame with foam and/or leather |
| DE60214943T2 (en) * | 2001-08-20 | 2007-06-14 | Trw Vehicle Safety Systems Inc., Lyndhurst | Thermoplastic polyolefin elastomer steering wheel |
| DE102006031859A1 (en) * | 2006-07-10 | 2008-01-17 | Trw Automotive Safety Systems Gmbh | Steering wheel for motor vehicle, has outer skin surrounding rim sleeve, and spoke connecting steering wheel rim and hub, where outer skin consists of compact or foamed polyurethane-casting elastomer in specific layer thickness |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2961155A1 (en) * | 2010-06-10 | 2011-12-16 | Peugeot Citroen Automobiles Sa | Fly-wheel for controlling displacements of system e.g. vehicle such as automobile, has resistant band separated from enveloping trim in order to cut trim for disintegration of reinforcement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008125566A1 (en) | 2008-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| R082 | Change of representative |
Representative=s name: MAIKOWSKI & NINNEMANN PATENTANWAELTE, DE |
|
| R081 | Change of applicant/patentee |
Owner name: TAKATA AKTIENGESELLSCHAFT, DE Free format text: FORMER OWNER: TAKATA-PETRI AG, 63743 ASCHAFFENBURG, DE Effective date: 20120904 |
|
| R082 | Change of representative |
Representative=s name: MAIKOWSKI & NINNEMANN PATENTANWAELTE, DE Effective date: 20120904 |
|
| R016 | Response to examination communication | ||
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |
Effective date: 20130726 |