WO2009030408A2 - Kopfstütze für ein fahrzeug - Google Patents
Kopfstütze für ein fahrzeug Download PDFInfo
- Publication number
- WO2009030408A2 WO2009030408A2 PCT/EP2008/007005 EP2008007005W WO2009030408A2 WO 2009030408 A2 WO2009030408 A2 WO 2009030408A2 EP 2008007005 W EP2008007005 W EP 2008007005W WO 2009030408 A2 WO2009030408 A2 WO 2009030408A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- rotation
- headrest
- bearing
- axis
- 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
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
- B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
Definitions
- the invention relates to a headrest for a vehicle seat, in which at least one of the head of the seat occupant facing portion of the headrest accidentally under the action of a drive means from a position of use to the head of the seat occupant is moved towards a safety position.
- a headrest which consists of a rigidly connected to the backrest of the Anlageniizes Haitestangen, possibly also adjustable in height basic body, which is arranged in a trough-like cushion segment.
- the cushion segment In the event of an accident, the cushion segment is moved translationally toward the head of the seat occupant in order to prevent whiplash.
- the force required for this purpose is generated by a biased in the direction of displacement spring within a telescopic guide device.
- a further headrest is described, in which a cushion segment due to accident relative to the base body about a fixed axis of rotation is pivotable forward.
- the drive device is a spring-loaded piston / cylinder arrangement in conjunction with a support lever, in which the piston rod is articulated in the region of the axis of rotation on the base body and the cylinder on the cushion segment.
- a headrest is also known in which a displaceable padding element is connected to the main body via a scissor mechanism, by means of which the padding element is movable from a rest position forward into a position of use.
- a generic headrest is known from the publication DE 10 2004 016 474 B3. In this case, portions of the headrest are telescopically moved apart to occupy a safety position of the headrest.
- the invention has for its object to provide a headrest with a simple and compact design, smooth and effective drive device.
- the object is achieved by a headrest for a vehicle seat, in which at least one of the head of the seat occupant facing first portion of the headrest accidentally under the action of a relative movement of a substantially disposed between the first portion and a third portion second portion of the headrest from a position of use to the head of the seat occupant along a Veiiagerungsplatz is displaced into a safety position, wherein the relative movement of the sections is a rotation about an axis of rotation substantially parallel to the axis of rotation, wherein in the relative movement about the axis of rotation storage of the first portion relative to the second portion is provided wherein the first portion has a first bearing surface and the second Teii scholar a second bearing surface.
- a particularly smooth realization of a headrest according to the invention is possible. In particular, it is thereby possible to simplify the storage for the first section and to make it considerably smoother.
- a roller bearing is provided in the region of the first and second bearing surfaces, wherein the roller bearing comprises in particular a bearing cage having a rolling element, or that the bearing cage along the axis of rotation an extension in the order of displacement of the first portion between the position of use and the security position.
- the first section has at least one first inclined surface and the second section at least one second inclined surface or that the third section at least a third inclined surface and the second portion has at least a fourth inclined surface, wherein at least a portion of the inclined surfaces in essentially helically around the axis of rotation and cause a relative movement of the second portion about the axis of rotation movement of the first and second portion along the displacement direction.
- the bearing of the first section relative to the second section is provided by means of a central bearing, wherein the first bearing surface is an outer bearing surface, wherein the second bearing surface is an inner bearing surface and wherein in particular the first and second bearing surface with respect to Rotary axis is provided radially inwardly opposite the first and second inclined surface and / or with respect to the third and fourth inclined surface.
- a two-sided effect of the first and second inclined surfaces and / or a two-sided effect of the third and fourth inclined surfaces is provided.
- a blocking device for blocking or reducing a movement of the first portion of the headrest against the displacement direction, wherein the blocking device has a toothing in the region of the third inclined surface and the fourth inclined surface.
- the blocking device comprises at least one spring device, wherein the spring device normally causes an engagement of the toothing, or that the second portion has a comfort section and a safety section, wherein by means of a rotation of the comfort section about the axis of rotation starting from the position of use or starting from a comfort position, a movement of the first portion along the displacement direction is provided and wherein rnitteis a rotation of the security section about the axis of rotation at least partially Mitschul the comfort section and a movement of the first section along the displacement direction is provided.
- a comfort adjustment of the headrest in the horizontal direction i. a displacement of the first portion in the direction of displacement for comfort purposes in a simple manner is possible.
- FIG. 1 shows a vehicle seat with a headrest
- FIGS. 2a to 2d sections through an insertable into the headrest
- FIG. 3 to 16 different embodiments or details of the headrest according to the invention.
- a vehicle seat 1 according to the invention or a vehicle seat 1 equipped with a headrest 4 according to the invention comprises a seat part 2 and a backrest 3 which is connected to the headrest 4 in a tilt-adjustable manner.
- Paired support rods 5 may be provided for attachment of the headrest to the backrest 3.
- the pair of support rods 5 of the headrest 4 can be pivotally connected in the upper region of the backrest 3 or in the region of the headrest 4 via a joint (not shown) with the backrest 3 or with the headrest 4.
- the headrest 4 has at least one first section 11 of the headrest 4 facing the head of the seat occupant, which under the effect of a relative movement of a second section 12 of the headrest 4 arranged essentially between the first section 11 and a third section 13 from a position of use (drawn with a solid line in Figure 1) to the head of the seat occupant along a direction of displacement in a safety position (drawn with dashed line in Figure 1) is veriagerbar.
- the first section 11 is, in particular, a cushioning element to which the head of the seat occupant can be applied or supported.
- the third section 13 of the headrest 4 is in particular a main body of the headrest 4, which is rigidly connected to the backrest 3 via the support rods 5 or also height-adjustable and / or tilt-adjustable.
- Within the headrest 4 is between the first portion 11 and the third portion 13, a subsequently described in detail and the second portion 12 having drive means arranged which causes the displacement of the first portion 11 in a direction of movement C on the head of the seat occupant.
- FIG. 2a shows the relative movement of the sections 11, 12, 13 of the headrest 4 according to the invention in a schematic manner in more detail.
- Figures 2a and 2b show the state of the headrest in the position of use and Figures 2c and 2d, the state of the headrest in the safety position (displacement of the first portion 11 in the direction of the seat occupant to, movement direction C)
- the figure 2b is a front 2a shows a sectional view of the headrest 4 depicted in FIG. 2a in a lateral sectional view
- FIG. 2d shows a front sectional view of the headrest 4 shown in FIG. 2c in a lateral sectional view along the section line XX in FIG. 2c.
- the drive device comprises the second portion 12 of the headrest 4, which is rotatably connected about an axis of rotation 19 with the third portion 13 and the main body of the headrest 4.
- prestressed spring 20 is either - depending on bias - either capable of effecting a movement of the use position in the safety position after the solution of a locking device, not shown, or to effect a movement from the safety position to the position of use.
- the second section 12 is rotated relative to the third section 13 (arrow B).
- first inclined surfaces 11 and the second portion 12 and / or between the second portion 12 and the third portion 13 On rubbing together inclined surfaces between the first portion 11 and the second portion 12 and / or between the second portion 12 and the third portion 13 cause an axial force and a forward displacement of the first portion 11 parallel to the direction of the rotation axis 19 in the direction of arrow C (FIG. shift direction).
- the end faces of the first section 11 (also referred to below as first inclined surfaces 11 ') and of the second section 12 (hereinafter also referred to as second inclined surfaces 12') designated 11 'and 12', respectively, are designed as inclined surfaces according to the invention, the rotational movement of the second section 12 is translated into a translational movement of the first section 11.
- a blocking device can be provided at this point (ie between the first and second inclined surfaces 11 ', 12') such that a part or all of these first and second inclined surfaces 11 ', 12' are provided with toothings, for example sawtooth-like teeth allow blocking of the first portion 11 in its fully or partially extended according to the direction of movement C position when acting on the first portion 11 a this back in the position of use force (for example, after or during an accident, starting from the head of the vehicle occupant).
- Third and fourth inclined surfaces (not shown in FIGS.
- 2a to 2d can either alternatively or cumulatively be provided between the first section 11 and the second section 12 between the second section 12 and the third section 13 and alternatively or cumulatively the blocking device in the region of the first and second inclined surfaces 11 ', 12' have a similarly constructed blocking device.
- the displacement in the direction of displacement C of the first section 11 takes place exclusively in the event of an accident and thus only the safety position of the first section 11 is possible outside the position of use, or it is alternatively possible that the displacement of the first part 11 in the direction of displacement C is possible not only in an accident situation but also for comfort purposes at the request of a user.
- the displacement of the first portion 11 in the direction of displacement C is not only possible in an accident situation, but also for Kornfort involvede at the request of a user and overlap the displacement path in the direction of displacement for comfort purposes and the displacement path to adjust the security position completely.
- the second portion 12 has a comfort portion 122 and a safety portion 123, wherein by means of a rotation of the comfort portion 122 about the rotation axis 19 starting from the use position or starting from a comfort position movement of the first portion 11 along the displacement direction C is provided and wherein by means of a rotation of the security section 123 about the axis of rotation 19 at least partial movement of the comfort portion and a movement of the first portion 11 along the displacement direction C is provided.
- the safety section 123 nor the comfort section 122 is shown individually in FIGS. 2a to 2d.
- FIGS. 3, 4, 5 and 15 and 16 schematically show various representations of a headrest 4 according to the invention, FIG. 3 being an exploded view, FIG. 4 a sectional view, FIG. 5 a top view with the first section removed and in FIGS 16 further sectional views of the headrest in the use position ( Figure 15) and in the safety position ( Figure 16) are shown.
- the bearing cage 40 between the first portion 11 and the second portion 12 (or between the first portion 11 and the comfort portion 122 of the first portion 12) is arranged and that the first Section 11 has a tubular Anformung such that the outer surface of the tubular Anformung as a first bearing surface 111 with a tubular or cylindrical second bearing surface 121, in particular an inner surface of the second portion 12 and the Marinteil Sharings 122, or with a corresponding side of the bearing cage 40th for the storage of the first portion 11 cooperates in the sense of a central storage.
- the length of the tubular molding or the length of the first bearing surface 111 is inventively dimensioned such that a sufficiently good and easy-storage in all translational settings of the first section 11 is ensured.
- the bearing cage 40 preferably has an extension in the range of the order of magnitude of the displacement of the first portion 11 between the position of use and the safety position, preferably in the range between 60% and 140%, preferably between 80% and 12%, the length of the maximum displacement ,
- the bearing cage 40 according to the invention preferably has a plurality of rolling elements 41.
- Different examples of various embodiments of the bearing cage 40 are shown in Figures 6 to 14.
- an embodiment of the substantially cylindrical bearing cage 40 is shown, in which the bearing cage 40 is provided substantially in one piece and wherein the rolling elements 41 are formed substantially as Rollenracelz Sciences 41.
- sliding ribs 42 are formed in the bearing cage 40 in the region of the first and / or second bearing surface 111, 121, which lead to a particularly smooth bearing.
- FIGS. 9 to 14 show various embodiments of the bearing cage 40
- the bearing cage 40 in which the bearing cage 40 is provided constructed of a plurality of sub-elements 43, in particular rings are provided as sub-elements, which receive the rolling elements 41 between them.
- the rolling elements are the rolling elements
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL08785707T PL2195190T3 (pl) | 2007-08-31 | 2008-08-27 | Podgłówek samochodowy |
| US12/675,345 US8882193B2 (en) | 2007-08-31 | 2008-08-27 | Head rest for a vehicle |
| EP08785707.4A EP2195190B1 (de) | 2007-08-31 | 2008-08-27 | Kopfstütze für ein fahrzeug |
| CN2008801111019A CN101821129B (zh) | 2007-08-31 | 2008-08-27 | 车辆头枕 |
| JP2010522240A JP5286363B2 (ja) | 2007-08-31 | 2008-08-27 | 車両用のヘッドレスト |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007041520A DE102007041520B3 (de) | 2007-08-31 | 2007-08-31 | Kopfstütze für ein Fahrzeug |
| DE102007041520.8 | 2007-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009030408A2 true WO2009030408A2 (de) | 2009-03-12 |
| WO2009030408A3 WO2009030408A3 (de) | 2009-05-07 |
Family
ID=40157665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/007005 Ceased WO2009030408A2 (de) | 2007-08-31 | 2008-08-27 | Kopfstütze für ein fahrzeug |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8882193B2 (de) |
| EP (1) | EP2195190B1 (de) |
| JP (1) | JP5286363B2 (de) |
| CN (1) | CN101821129B (de) |
| DE (1) | DE102007041520B3 (de) |
| PL (1) | PL2195190T3 (de) |
| WO (1) | WO2009030408A2 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8205941B2 (en) | 2008-07-30 | 2012-06-26 | Trw Vehicle Safety Systems Inc. | Active head restraint for a vehicle seat |
| CN103068627A (zh) * | 2010-06-11 | 2013-04-24 | 约翰逊控股公司 | 用于车辆座椅的头靠 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010036023B4 (de) * | 2010-08-31 | 2017-10-19 | Adient Luxembourg Holding S.à.r.l. | In X-Richtung verstellbare Kopfstütze |
| US9233631B2 (en) * | 2013-01-24 | 2016-01-12 | Lear Corporation | Adjustable head restraint assembly |
| US9278635B2 (en) | 2013-01-30 | 2016-03-08 | Lear Corporation | Adjustable head restraint assembly |
| WO2017095891A1 (en) * | 2015-11-30 | 2017-06-08 | B/E Aerospace, Inc. | Forward translating headrest |
| DE102016110496A1 (de) * | 2016-06-07 | 2017-12-07 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kopfstütze für einen Kraftfahrzeugsitz |
| EP4556307A1 (de) * | 2023-11-20 | 2025-05-21 | D&M Solutions Co., Ltd. | Kopfstützenmodul |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187353U (ja) * | 1983-05-31 | 1984-12-12 | 日野自動車株式会社 | 自動車用シ−ト枕 |
| US4709311A (en) * | 1986-07-16 | 1987-11-24 | Vari-Lite, Inc. | Lens carrier |
| DE3900495A1 (de) * | 1989-01-10 | 1990-07-26 | Bayerische Motoren Werke Ag | Kopfstuetze fuer einen kraftfahrzeugsitz |
| EP0974484B1 (de) * | 1998-07-23 | 2002-12-18 | GRAMMER Automotive GmbH | Kopfstütze für Kraftfahrzeugsitze |
| DE19941712C1 (de) * | 1999-09-02 | 2000-10-26 | Daimler Chrysler Ag | Fahrzeugsitz |
| DE102004016474B3 (de) * | 2004-03-31 | 2005-08-11 | Johnson Controls Gmbh | Kopfstütze, insbesondere für ein Kraftfahrzeug |
| DE102006001143B3 (de) * | 2006-01-06 | 2007-04-19 | Johnson Controls Gmbh | Kopfstütze, insbesondere für ein Kraftfahrzeug |
-
2007
- 2007-08-31 DE DE102007041520A patent/DE102007041520B3/de not_active Expired - Fee Related
-
2008
- 2008-08-27 US US12/675,345 patent/US8882193B2/en active Active
- 2008-08-27 CN CN2008801111019A patent/CN101821129B/zh not_active Expired - Fee Related
- 2008-08-27 JP JP2010522240A patent/JP5286363B2/ja not_active Expired - Fee Related
- 2008-08-27 PL PL08785707T patent/PL2195190T3/pl unknown
- 2008-08-27 WO PCT/EP2008/007005 patent/WO2009030408A2/de not_active Ceased
- 2008-08-27 EP EP08785707.4A patent/EP2195190B1/de not_active Not-in-force
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8205941B2 (en) | 2008-07-30 | 2012-06-26 | Trw Vehicle Safety Systems Inc. | Active head restraint for a vehicle seat |
| CN103068627A (zh) * | 2010-06-11 | 2013-04-24 | 约翰逊控股公司 | 用于车辆座椅的头靠 |
| CN103068627B (zh) * | 2010-06-11 | 2016-01-06 | 约翰逊控股公司 | 用于车辆座椅的头靠 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009030408A3 (de) | 2009-05-07 |
| JP2010536653A (ja) | 2010-12-02 |
| DE102007041520B3 (de) | 2009-01-29 |
| US20110012399A1 (en) | 2011-01-20 |
| CN101821129B (zh) | 2012-06-20 |
| PL2195190T3 (pl) | 2013-09-30 |
| JP5286363B2 (ja) | 2013-09-11 |
| EP2195190B1 (de) | 2013-05-15 |
| US8882193B2 (en) | 2014-11-11 |
| CN101821129A (zh) | 2010-09-01 |
| EP2195190A2 (de) | 2010-06-16 |
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