DE102008026815A1 - Vehicle seat has headrest, and headrest pipe, which is adjusted in minimum breaking resistance and minimum buckling resistance during collision force - Google Patents
Vehicle seat has headrest, and headrest pipe, which is adjusted in minimum breaking resistance and minimum buckling resistance during collision force Download PDFInfo
- Publication number
- DE102008026815A1 DE102008026815A1 DE102008026815A DE102008026815A DE102008026815A1 DE 102008026815 A1 DE102008026815 A1 DE 102008026815A1 DE 102008026815 A DE102008026815 A DE 102008026815A DE 102008026815 A DE102008026815 A DE 102008026815A DE 102008026815 A1 DE102008026815 A1 DE 102008026815A1
- Authority
- DE
- Germany
- Prior art keywords
- headrest
- vehicle seat
- section
- tube
- headrest tube
- 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- Withdrawn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
- B60N2/80—Head-rests
Abstract
Description
Die Erfindung betrifft einen Fahrzeugsitz mit einer Kopfstütze und mindestens einem Kopfstützenrohr. Dabei ist das Kopfstützenrohr in seiner Sollwandstärke an eine Mindestbruchfestigkeit und eine Mindestknickfestigkeit bei Aufprallbelastung angepasst, die bei einem Frontalzusammenstoß eines Fahrzeugs oder Heckaufprall eines anderen Fahrzeugs in Gegenfahrtrichtung auftreten kann. Das Kopfstützenrohr ragt dabei aus einer Rohrführung einer Rückenlehne des Fahrzeugsitzes heraus.The The invention relates to a vehicle seat with a headrest and at least one headrest tube. This is the headrest tube in its Sollwandstärke to a minimum breaking strength and a minimum buckling strength adapted to impact load, in a head-on collision of a vehicle or Rear impact of another vehicle in the opposite direction occur can. The headrest tube protrudes from a pipe guide a backrest of the vehicle seat out.
Aus
der Druckschrift
Eine
derartige Kopfstütze
Diese
Dimensionierung hat den Nachteil, dass die Wandstärke zur
Aufnahme von Kräften in Querrichtung
Aufgabe der Erfindung ist es, einen Fahrzeugsitz mit Kopfstütze und Kopfstützenrohr anzugeben, dessen Rohrquerschnitt an die unterschiedlichen Belastungen in Fahrtrichtung und quer zur Fahrtrichtung angepasst ist.task The invention is a vehicle seat with headrest and indicate headrest tube whose pipe cross-section the different loads in the direction of travel and across the direction of travel is adjusted.
Diese Aufgabe wird mit dem unabhängigen Anspruch 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.These The object is achieved with the independent claim 1. Advantageous developments of the invention will become apparent from the dependent claims.
Erfindungsgemäß wird ein Fahrzeugsitz mit einer Kopfstütze und mindestens einem Kopfstützenrohr geschaffen. Dabei ist das Kopfstützenrohr in seiner Sollwandstärke an eine Mindestbruchfestigkeit und eine Mindestknickfestigkeit bei Aufprallbelastung angepasst, die bei einem Frontalzusammenstoß oder einem Heckaufprall eines Fahrzeugs in Gegenfahrtrichtung auftreten kann. Das Kopfstützenrohr ragt aus einer Rohrführung einer Rückenlehne des Fahrzeugsitzes heraus. Dabei weist das Kopfstützenrohr einen ovalen Querschnitt mit einer Längsachse und einer Querachse auf. Das Kopfstützenrohr ist derart in der Kopfstützrohrführung einer Fahrzeugsitzrückenlehne angeordnet, dass die Querschnittslängsachse in Fahrtrichtung und die Querschnittsquerachse des Kopfstützenrohres quer zur Fahrtrichtung ausgerichtet sind.According to the invention a vehicle seat with a headrest and at least one Headrest tube created. This is the headrest tube in its Sollwandstärke to a minimum breaking strength and a minimum buckling strength adapted to impact load, the in a head-on collision or a rear impact of a Vehicle may occur in the opposite direction. The headrest tube protrudes from a pipe guide a backrest of the vehicle seat out. In this case, the headrest tube has an oval cross-section with a longitudinal axis and a transverse axis. The headrest tube is such in the head support tube guide of a vehicle seat backrest arranged that the cross-sectional longitudinal axis in the direction of travel and the cross-sectional transverse axis of the headrest tube transversely are aligned to the direction of travel.
Diese ovale Querschnittsform hat den Vorteil, dass nur ein einzelnes Kopfstützenrohr pro Kopfstütze erforderlich ist, wobei das ovale Profil ein Verdrehen der Kopfstütze im Gegensatz zum Stand der Technik verhindert, so dass ein sonst übliches zweites Kopfstützenrohr entfallen kann. Weiterhin hat der ovale Querschnitt den Vorteil, dass er besser an die verminderte Querbelastung bei Unfällen angepasst ist und somit ein Gewichtseinsparpotential für einen Fahrzeugsitz vollständig nutzt. Dazu wird die Längsachse des ovalen Querschnitts unter Berücksichtigung der Wandstärke in ihrer Bruchfestigkeit auf die Belastungen in Fahrtrichtung bzw. Gegenfahrtrichtung optimiert, und die Ausdehnung des ovalen Profils in Richtung der Querachse wird entsprechend der verminderten Belastung quer zur Fahrtrichtung bei sonst gleicher Wandstärke vermindert, womit gegenüber einem runden Kopfstützenrohrprofil eine deutliche Gewichtseinsparung möglich wird.These oval cross-sectional shape has the advantage that only a single headrest tube per headrest is required, with the oval profile a twisting of the headrest in contrast to the prior art prevents, so that an otherwise usual second headrest tube can be omitted. Furthermore, the oval cross-section has the advantage that he is better at the reduced lateral load in accidents is adjusted and thus a weight saving potential for fully utilizes a vehicle seat. This is the longitudinal axis of the oval cross-section taking into account the wall thickness in their breaking strength on the loads in the direction of travel or Optimized opposite direction of travel, and the extent of the oval profile in the direction of the transverse axis is corresponding to the reduced load reduced transverse to the direction of travel with otherwise the same wall thickness, what about a round headrest tube profile a significant weight saving is possible.
In einer bevorzugten Ausführungsform der Erfindung ist deshalb das Gesamtgewicht des mindestens einen Kopfstützenrohres mit ovalem Querschnitt und einheitlicher Wandstärke gegenüber einem Kopfstützenrohr mit rundem Querschnitt mit Sollwandstärke verringert. Die Bruchfestigkeit und die Knickfestigkeit des mindestens einen Kopfstützenrohres mit ovalem Querschnitt in Fahrtrichtung werden dabei beibehalten und in Querrichtung gegenüber einem runden Querschnitt der verminderten Belastung angepasst. Dabei wird die Wandstärke konstant gehalten, und das Kopfstützenrohr nicht mit unterschiedlichen Wandstärken im Querschnitt versehen, was die Herstellungskosten des Kopfstützenrohres mit ovalem Querschnitt minimiert. In einer bevorzugten Ausführungsform der Erfindung weist der ovale Querschnitt eine elliptische Außen- und Innenkontur auf, die sich deutlich von einem kreisförmigen Querschnitt unterscheiden und eine gleich bleibende Wandstärke sichern.In a preferred embodiment of the invention is therefore the total weight of the at least one headrest tube with oval cross section and uniform wall thickness opposite a headrest tube with round cross-section with nominal wall thickness reduced. The breaking strength and the buckling strength of at least a headrest tube with oval cross section in the direction of travel while maintaining and transversely to a round Cross-section adapted to the reduced load. Here is the Wall thickness kept constant, and the headrest tube not with different wall thicknesses in cross section provided what the manufacturing cost of the headrest tube minimized with oval cross section. In a preferred embodiment invention, the oval cross section has an elliptical outer and inner contour, which is clearly of a circular cross-section distinguish and secure a constant wall thickness.
In einer weiteren Ausführungsform der Erfindung ist die Rohrführung in der Kopfstütze selbst angeordnet. Dabei ist die Kopfstütze an dem aus der Rückenlehne herausragenden Bereich des Kopfstützenrohres höhenverstellbar angeordnet. Alternativ kann das mindestens eine Kopfstützenrohr mit fixierter Kopfstütze in einer Rohrführung der Rückenlehne höhenverstellbar angeordnet sein. Für beide Fälle jedoch kann ein ovales Kopfstützenrohr Gewichtsvorteile bringen.In Another embodiment of the invention is the pipe guide arranged in the headrest itself. Here is the headrest on the protruding from the backrest portion of the headrest tube arranged height adjustable. Alternatively, this can be at least a headrest tube with fixed headrest Height adjustable in a tube guide of the backrest be arranged. For both cases, however, one can oval headrest tube to bring weight advantages.
Die Rohrführung in der Kopfstütze oder in der Rückenlehne kann mindestens ein federelastisches Positionierungselement aufweisen, für das Einrastpositionen an dem mindestens einem Kopfstützenrohr vorgesehen sind. Dabei kann das federelastische Positionierungselement eine federelastisch vorgespannte Kugel aufweisen, die in entsprechende Vertiefungen des Kopfstützenrohres im Bereich der Rohrführung arretierend einrastbar ist.The Pipe guide in the headrest or in the backrest can have at least one resilient positioning element, for the latching positions on the at least one headrest tube are provided. In this case, the resilient positioning element having a resiliently biased ball, which in corresponding recesses of the headrest tube in the region of the pipe guide can be latched arresting.
Die Erfindung wird nun anhand der beigefügten Figuren näher erläutert.The The invention will now be more apparent from the accompanying drawings explained.
Für
diese Berechnung wird ein elliptischer Querschnitt mit einer elliptischen
Innenkontur
- 11
- Fahrzeugsitzvehicle seat
- 22
- Kopfstützeheadrest
- 33
- KopfstützenrohrHeadrests pipe
- 44
- GegenfahrtrichtungOpposite direction of travel
- 55
- Rohrführung (in der Rückenlehne)pipe guide (in the backrest)
- 66
- ovaler Querschnittoval cross-section
- 77
- Sitzflächeseat
- 88th
- Rückenlehnebackrest
- 99
- Öffnungopening
- 1010
- Längsachselongitudinal axis
- 1111
- Querachsetransverse axis
- 1212
- Fahrtrichtungdirection of travel
- 1313
- Außenkonturouter contour
- 1414
- Innenkonturinner contour
- 1515
- runder Querschnittround cross-section
- 1616
- Querrichtung (quer zur Fahrtrichtungtransversely (transverse to the direction of travel
- 1717
- freier Kopfstützenrohrbereichfree Headrests pipe area
- 1919
- Rohrführung (in der Kopfstütze)pipe guide (in the headrest)
- tt
- WandstärkeWall thickness
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
- - DE 10013817 A1 [0002] - DE 10013817 A1 [0002]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026815A DE102008026815A1 (en) | 2008-06-05 | 2008-06-05 | Vehicle seat has headrest, and headrest pipe, which is adjusted in minimum breaking resistance and minimum buckling resistance during collision force |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026815A DE102008026815A1 (en) | 2008-06-05 | 2008-06-05 | Vehicle seat has headrest, and headrest pipe, which is adjusted in minimum breaking resistance and minimum buckling resistance during collision force |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008026815A1 true DE102008026815A1 (en) | 2009-12-10 |
Family
ID=41268737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008026815A Withdrawn DE102008026815A1 (en) | 2008-06-05 | 2008-06-05 | Vehicle seat has headrest, and headrest pipe, which is adjusted in minimum breaking resistance and minimum buckling resistance during collision force |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008026815A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015016655A1 (en) * | 2015-12-19 | 2017-06-22 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Device for supporting a headrest in a seat structure of a vehicle seat |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10013817A1 (en) | 2000-03-21 | 2001-09-27 | Lear Corp | Headrest for motor vehicle has guide rods with wall thickness which at least over part of length with headrest mounted is greater in direction of motion than wall thickness at right angles to direction of motion |
FR2907390A1 (en) * | 2006-10-18 | 2008-04-25 | Cera | Tubular spindle for mounting headrest on motor vehicle's seat back, has zone presenting section of longitudinal dimension higher than its transversal dimension to present bending strength to force applied according to direction on headrest |
-
2008
- 2008-06-05 DE DE102008026815A patent/DE102008026815A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10013817A1 (en) | 2000-03-21 | 2001-09-27 | Lear Corp | Headrest for motor vehicle has guide rods with wall thickness which at least over part of length with headrest mounted is greater in direction of motion than wall thickness at right angles to direction of motion |
FR2907390A1 (en) * | 2006-10-18 | 2008-04-25 | Cera | Tubular spindle for mounting headrest on motor vehicle's seat back, has zone presenting section of longitudinal dimension higher than its transversal dimension to present bending strength to force applied according to direction on headrest |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015016655A1 (en) * | 2015-12-19 | 2017-06-22 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Device for supporting a headrest in a seat structure of a vehicle seat |
US10293726B2 (en) | 2015-12-19 | 2019-05-21 | GM Global Technology Operations LLC | Device for mounting a headrest in a seat structure of a vehicle seat |
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Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC (N. D. GES, US Free format text: FORMER OWNER: GM GLOBAL TECHNOLOGY OPERATIONS, INC., DETROIT, MICH., US Effective date: 20110323 |
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