EP3137337A1 - Dispositif de sécurité pour entraîner en rotation programmée un appui-tête d'un dossier de siège de véhicule en cas de choc arrière - Google Patents
Dispositif de sécurité pour entraîner en rotation programmée un appui-tête d'un dossier de siège de véhicule en cas de choc arrièreInfo
- Publication number
- EP3137337A1 EP3137337A1 EP15718530.7A EP15718530A EP3137337A1 EP 3137337 A1 EP3137337 A1 EP 3137337A1 EP 15718530 A EP15718530 A EP 15718530A EP 3137337 A1 EP3137337 A1 EP 3137337A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- vehicle
- backrest
- rods
- headrest
- 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- Withdrawn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
- 239000008186 active pharmaceutical agent Substances 0.000 claims abstract description 13
- 239000007769 metal material Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 208000002193 Pain Diseases 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000036407 pain Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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
-
- 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
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
Definitions
- the invention relates to vehicle seats which are equipped with at least one headrest.
- seat is understood to mean an equipment comprising a seat intended to be mounted directly or indirectly (via stands) on a support (such as for example a vehicle floor, possibly of automobile type), and at least one folder, possibly rotatably mounted (possibly on the seat), and comprising a frame on which is mounted in translation at least one headrest. Therefore, the invention relates as well to the seats of the single-seater type as the bench-type seats. It also relates to seats with a tilting backrest.
- the invention therefore aims to improve the situation.
- a safety device intended to be associated with a headrest forming part of a seat of a vehicle and comprising a lining piece fixedly secured to two rods mounted in translation in a direction chosen relative to to a frame of a folder of this seat.
- This device is characterized in that it comprises at least one tab adapted to be secured to the frame and comprising a clean free end, when pushed back of the backrest due to pressure exerted by a upper part of the back of a seated passenger, following a rear impact to the vehicle, to induce a rotation (programmed) towards the front of the seat of at least one of the rods, so as to move closer to the head of the Passenger the trim piece of the headrest.
- the safety device whose weight is very low and is very inexpensive, when the vehicle is subject to a rear impact, the depression in the backrest of the upper back of a passenger automatically causes a reduction of the distance head / headrest, likely to reduce the violence of the impact of this head on this headrest.
- the security device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular:
- each leg may comprise a connection means adapted to be securely fixed and tautly attached to the lower free ends of the rods.
- the free end of each leg is adapted to push the connecting means towards the rear of the backrest so as to cause the rotation of the rods forward;
- each free end of a tab may be initially spaced from the connecting means by a distance of between about 1 mm and about 3 mm; - In a second embodiment, it may comprise two lugs whose free ends are adapted to respectively push free lower ends of the rods so as to cause their rotation towards the front of the folder;
- connection means adapted to be secured firmly and tautly to the free ends of the legs, and clean when pushed towards the rear of the backrest because of the pressure exerted by the upper part of the back of the back.
- each free end of a tab may be initially spaced from the lower end of the associated rod by a distance of between about 1 mm and about 3 mm;
- each leg may be made of a rigid and very strong metallic material.
- the invention also provides a folder intended to be part of a seat and comprising a frame on which is mounted in translation a headrest, and a safety device of the type shown above and secured to the frame.
- the invention also proposes a seat comprising at least one file of the type of that presented above.
- the invention also proposes a vehicle, possibly of automobile type, and comprising at least one seat of the type of that presented above.
- FIG. 1 schematically illustrates, in a sectional view in an XZ plane, a portion of a seat backrest equipped with a headrest and a first embodiment of a safety device according to the invention; before a rear shock,
- FIG. 2 schematically illustrates, in a sectional view in the plane XZ, the part of the back of FIG. 1 during a rear impact
- FIG. 3 schematically illustrates, in a perspective view of the front side, a portion of a seat back frame equipped with a headrest and a second embodiment of a safety device according to FIG. invention
- FIG. 4 schematically illustrates, in a perspective view of the front side, a portion of a seat back frame equipped with a headrest and a third embodiment of a safety device according to FIG. invention.
- the invention aims in particular to provide a DS safety device intended to be associated with a headrest AT on an armature AD of a DO back of a seat SI to equip a vehicle.
- the seat SI is intended to equip a vehicle type automotive, such as a car.
- vehicle type automotive such as a car.
- the invention is not limited to this application. It concerns indeed any vehicle comprising at least one support (such as for example a floor) on which can be installed at least one SI head support (s) head. Therefore, the invention relates to land vehicles (including trams and trains), maritime (or fluvial), and air.
- the SI seat is of single-seat type. But the invention is not limited to this type of seat. It concerns indeed any type of seat that can accommodate, sitting, at least one person. Therefore, it may also be a bench with at least one DO folder equipped with at least one DS security device according to the invention.
- FIGS. 1 and 2 show diagrammatically an upper part of a backrest DO of a vehicle seat SI equipped with an AT headrest and an embodiment of a safety device DS according to FIG. invention.
- the direction X is the longitudinal direction of the vehicle (and thus of the seat SI), which is substantially parallel to the lateral sides including the side doors
- the Y direction is the transverse direction of the vehicle, which is perpendicular to the direction X
- the direction Z is the vertical direction of the vehicle, which is perpendicular to the longitudinal X and transverse Y directions.
- the folder DO comprises a reinforcement AD intended to be associated (possibly coupled) to a seat (not shown).
- the latter is for example mounted indirectly (via legs) on a floor of a vehicle.
- the seat could be mounted directly on a raised portion of the floor of the vehicle.
- this armature AD of the folder DO can be rotatably mounted (possibly on the seat). But this is not obligatory.
- this AD backrest armature is intended to be equipped with a synthetic MG packing foam, and possibly a cover.
- the PG lining piece is secured to the upper ends of the two rods Tj, and has a front face for allowing the support of the head TP and / or the neck of a passenger.
- This piece of PG lining is for example made of a relatively soft synthetic foam to provide comfort to the passenger in case of support of his TP head and / or his neck.
- This foam may, for example, be polyurethane (or PU).
- the packing piece PG can be made in one or more parts.
- the PG packing room can be surrounded by a cover HD, for example synthetic material (optionally woven) or leather.
- the rods TC comprise lower ends E1 which can translate respectively into two guides GC which are firmly fixed to the armature AD of the backrest DO.
- the upper part of the backrest DO may be equipped with locking means intended to enable locking Tj rods in a translated position chosen by a passenger. These locking means may optionally be coupled to the GC guides.
- a safety device DS comprises at least one tab Pk which is adapted to be secured to the backrest frame AD, for example by welding or gluing.
- Each leg Pk comprises a free end EL which is clean, when it is pushed towards the rear of the backrest DO due to pressure exerted by an upper part of the back of a seated passenger, following a rear impact sustained by the vehicle, to induce rotation towards the front of the seat IF of at least one of the rods Tj, so as to bring the head TP of this passenger the trim piece PG of the headrest AT.
- Each tab Pk is preferably made of a rigid and very strong metal material.
- this material may be a steel having a thickness of between about 0.3 mm and 1 mm, and more preferably equal to about 0.5 mm.
- Induction of programmed forward rotation of at least one rods Tj, by the backward displacement of the backrest OD of the free end EL of at least one tab Pk, may result from at least two different embodiments.
- the security device DS can also include, as shown in non-limiting manner in FIG. 3, a connection means ML fixedly and tightly fastened to the free ends EL of its tabs Pk, and therefore situated in a central part.
- connection means ML is clean, when it is pushed towards the rear of the backrest DO due to the pressure exerted by the upper part of the back of the seated passenger, following a rear impact to the vehicle, to push the ends EL free legs Pk to the lower ends El free rods Tj, to cause their rotation towards the front of the file DO.
- connection means ML may, for example, be in the form of a rigid rod (for example of resistant metal or of plastic), as shown in non-limiting manner in FIG. 3, or of a rigid plate (eg resistant metal or plastic).
- a rigid rod for example of resistant metal or of plastic
- a rigid plate eg resistant metal or plastic
- its attachment to the free ends EL of the tabs Pk can be done by welding or gluing, for example.
- the connecting means ML is preferably installed in the backrest DO substantially in the transverse direction Y.
- each free end EL of a tab Pk is preferably initially spaced from the lower end El of the associated rod Tj by a distance which is between about 1 mm and about 3 mm. For example, this distance can be chosen equal to about 2 mm.
- the security device DS comprises a connection means ML adapted to be firmly and securely attached to the free lower ends E1 of the rods Tj, and at least one tab Pk adapted to be secured to the armature AD and whose free end EL is adapted to push the connecting means ML towards the back of the backrest DO so as to cause the rotation of the rods Tj forwardly.
- the safety device DS comprises only one leg P1, installed in a substantially central position relative to the width of the backrest frame AD.
- the security device DS could include several legs Pk (for example two).
- the connecting means ML can, firstly, be in the form of a rigid rod, as shown nonlimitingly in Figure 4, or a rigid plate, a second part, to be secured to the lower ends El rods Tj by welding or gluing depending on the material in which is made the connecting means ML, and, thirdly, be installed in the folder DO substantially in the transverse direction Y.
- each free end EL of a tab Pk is preferably initially spaced from the connecting means ML by a distance which is between about 1 mm and about 3 mm.
- this distance can be chosen equal to about 2 mm.
- the invention is particularly advantageous because it provides a good level of protection vis-à-vis the whiplash, particularly simple, very inexpensive and very little penalty in terms of weight. In addition, it can be used in existing seats to increase passenger safety in the event of a rear impact.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1453928A FR3020605B1 (fr) | 2014-04-30 | 2014-04-30 | Dispositif de securite pour entrainer en rotation programmee un appui-tete d'un dossier de siege de vehicule en cas de choc arriere |
| PCT/FR2015/050814 WO2015166154A1 (fr) | 2014-04-30 | 2015-03-30 | Dispositif de sécurité pour entraîner en rotation programmée un appui-tête d'un dossier de siège de véhicule en cas de choc arrière |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3137337A1 true EP3137337A1 (fr) | 2017-03-08 |
Family
ID=51210596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15718530.7A Withdrawn EP3137337A1 (fr) | 2014-04-30 | 2015-03-30 | Dispositif de sécurité pour entraîner en rotation programmée un appui-tête d'un dossier de siège de véhicule en cas de choc arrière |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3137337A1 (fr) |
| FR (1) | FR3020605B1 (fr) |
| WO (1) | WO2015166154A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19961618C1 (de) * | 1999-12-21 | 2001-04-12 | Daimler Chrysler Ag | Rückenlehne für einen Fahrzeugsitz |
| JP3471741B2 (ja) * | 2000-11-08 | 2003-12-02 | 日本発条株式会社 | ヘッドレスト装置 |
| FR2896198B1 (fr) * | 2006-01-16 | 2010-01-01 | Tachi S Co | Dispositif de protection des cervicales de l'occupant d'un siege, notamment de vehicule automobile |
| FR2925412B1 (fr) * | 2007-12-19 | 2010-09-24 | Faurecia Sieges Automobile | Structure de dossier de siege pour siege de vehicule et siege comportant une telle structure. |
-
2014
- 2014-04-30 FR FR1453928A patent/FR3020605B1/fr not_active Expired - Fee Related
-
2015
- 2015-03-30 WO PCT/FR2015/050814 patent/WO2015166154A1/fr not_active Ceased
- 2015-03-30 EP EP15718530.7A patent/EP3137337A1/fr not_active Withdrawn
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015166154A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015166154A1 (fr) | 2015-11-05 |
| FR3020605B1 (fr) | 2017-12-08 |
| FR3020605A1 (fr) | 2015-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20160921 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PSA AUTOMOBILES SA |
|
| 17Q | First examination report despatched |
Effective date: 20180503 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: B60N 2/888 20180101ALI20190108BHEP Ipc: B60N 2/809 20180101AFI20190108BHEP |
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| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| INTG | Intention to grant announced |
Effective date: 20190318 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20190730 |