EP2958770A1 - Appui-tête de siège de véhicule automobile - Google Patents
Appui-tête de siège de véhicule automobileInfo
- Publication number
- EP2958770A1 EP2958770A1 EP14704616.3A EP14704616A EP2958770A1 EP 2958770 A1 EP2958770 A1 EP 2958770A1 EP 14704616 A EP14704616 A EP 14704616A EP 2958770 A1 EP2958770 A1 EP 2958770A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pallet
- headrest
- locking
- armature
- rods
- 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- Withdrawn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
- B60N2/806—Head-rests movable or adjustable
- B60N2/838—Tiltable
- B60N2/841—Tiltable characterised by their locking devices
- B60N2/847—Tiltable characterised by their locking devices with stepwise positioning
-
- 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
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/815—Release mechanisms, e.g. buttons
-
- 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
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/818—Head-rests movable or adjustable vertically slidable characterised by their locking devices with stepwise positioning
-
- 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
- B60N2/838—Tiltable
- B60N2/841—Tiltable characterised by their locking devices
- B60N2/844—Release mechanisms, e.g. buttons
Definitions
- the invention relates to a headrest of a motor vehicle seat.
- a headrest of a motor vehicle seat comprising:
- An armature for mounting said headrest on a backrest of said seat
- a support pallet rotatably mounted at the top of said armature along a first transverse axis, so as to allow adjustment of said pallet at a plurality of angular positions, so as to define a plurality of longitudinal bearing positions of the passenger's head to optimize comfort,
- a cushion comprising a block of flexible cushioning foam coated with a covering cap, said block having a fixed portion at least partially covering said armature and a movable portion covering said pallet, so that said cushion presents in lateral view a shape general V inverted angularly deformable by rotating said pallet, the foam disposed at the interface between said flexible hinge portions,
- a means for braking the rotation of said pallet in particular in the form of a friction hinge, said means being arranged so as to allow said pallet to be held in the selected adjustment position.
- Such a headrest whose cushion has a side view of a general shape of inverted V angularly deformable, has a particularly advantageous aesthetic due to the visual relief caused by the space cleared between the branches of the V.
- the invention aims to overcome this disadvantage while preserving the empty space between the branches of the V to maintain the aesthetic advantage of the headrest.
- the invention proposes a motor vehicle seat headrest, said headrest comprising:
- An armature for mounting said headrest on a backrest of said seat
- a support pallet rotatably mounted at the top of said armature along a first transverse axis, so as to allow adjustment of said pallet according to a plurality of angular positions
- a cushion comprising a block of flexible cushioning foam coated with a covering cap, said block having a fixed portion at least partially covering said armature and a movable portion covering said pallet, so that said cushion presents in lateral view a shape general V inverted angularly deformable by rotating said pallet, the foam disposed at the interface between said flexible hinge portions,
- said headrest further comprising:
- a device for blocking the rotation of said pallet rearwards in its various adjustment positions said device being disposed in said cap at said interface, so as to preserve a gap between the branches of the V,
- a means for deactivating the blocking is
- the terms of positioning in the space are taken with reference to the headrest disposed on a seat in a configuration d in the vehicle.
- the headrest In the event of a violent impact of the passenger's head on the headrest, when the pallet is in the adjustment position towards the front, the latter remains locked in its position due to its blocking by the locking device, which improves the safety of the passenger.
- the blocking of the pallet can be deactivated by the deactivation means to allow the setting to be modified.
- the aesthetics of the headrest is preserved, insofar as the space between the branches of the V is kept empty due to the positioning of the locking device at the interface between the fixed parts and mobile.
- FIG. 1 is a schematic partial perspective view of a headrest according to one embodiment, the body being in the low setting position and the pallet being in the rear adjustment position,
- FIG. 2 is similar to FIG. 1, the headrest being shown in side view with the pallet in front (2a) and rear (2b) adjustment positions,
- FIGS. 1 and 3 are partial views of the headrest of FIGS. 1 and 2, in section along a plane orthogonal to the rods, said rods being unlatched (3a) and locked (3b) in sliding,
- FIGS. 4 are views of the headrest of FIGS. 1 and 2, in section along a longitudinal plane parallel to the rods, the pallet being in the rear adjustment position, said pallet being locked (4a) and unlocked (4b) in rotation,
- Figure 5 is similar to Figure 4a, the pallet being in the front adjustment position.
- a headrest 1 of a motor vehicle seat comprising: An armature 20 - here in the form of two parallel metal rods 3 - for mounting said headrest on a backrest of said seat,
- a support pallet 7 rotatably mounted at the top of said armature along a first transverse axis 8, so as to allow adjustment of said pallet according to a plurality of angular positions, so as to define a plurality of longitudinal positions of support of the passenger's head to optimize comfort,
- a cushion 21 comprising a block 22 of flexible cushioning foam coated with a covering cap 23, said block having a fixed portion
- said headrest further comprising:
- a means for deactivating the blocking is
- the headrest 1 further comprises a rigid body 2 mounted - here in vertical sliding - on the armature 20, the pallet 7 being mounted at the top of said armature via said body.
- the locking device comprises:
- a latch 10 rotatably mounted on said body along a second axis 1 1 transverse, said latch being provided with a second toothed sector 12 meshing under the action of a spring, not shown, with said first toothed sector to define the different angular positions.
- sector toothed means a sector comprising at least one tooth and can be a rack as it is provided with several teeth.
- the toothed sectors 9, 12 are arranged so that the pallet 7 can be actuated forwards without actuation of the locking deactivation means.
- the armature 20 comprises two rods 3 mounted sliding on the body 2, at least one of said rods being provided with a plurality of locking notches 4 defining a plurality of height adjustment positions of said body, headrest 1 further comprising:
- a means 5 for locking the sliding of said toothed rod here in the form of a spool actuated by a not shown spring, said means being mounted on said body and being arranged to cooperate with said notches during setting into adjustment position,
- a means for disabling the lock is
- the locking disabling means is located on the headrest 1, in particular at the passenger's head, which provides a great ergonomic operation.
- the two rods 3 are provided with a plurality of locking notches 4, the headrest 1 comprising two respective locking means 5 for sliding said rods, said means being both mounted on the body 2 and being arranged to cooperate with said notches when setting position setting.
- the locking and locking deactivation means are integrated in a common deactivation device, said device comprising a single actuating means 14 - here in the form of a push button - making it possible simultaneously to release the sliding of the rods 3 and the rotation of the pallet 7 towards the rear.
- the deactivation device further comprises a bar 15 actuable by the actuating means 14, said bar being mounted in transverse sliding on the body 2, said bar comprising cam surfaces 16a, 16b arranged to be able to cooperate with cam followers 17a, 17b provided on the locking means (5) and on the latch (10) so as to deactivate the locking of the rods (3) and the locking of the pallet (7).
- the headrest 1 may further comprise a means of braking the rotation of the pallet 7, in particular in the form of a spring blade, so as to prevent the adjustment of the position of said pallet when height adjustment of said headrest is carried out.
- a means of energy dissipation for example in the form of a room sized to break under a given force, during a violent impact of the head of a passenger on the head support.
- the blocking and / or deactivating devices and the locking and / or deactivating and / or braking means are housed in a foam-proof housing, said casing being overmolded by the block 22 of flexible foam.
- the rigid body 2 may comprise a rear shell portion, the headrest 1 further comprising a front shell closing said rear shell so as to define the sealed housing housing the locking devices and / or deactivation and the locking and / or deactivating and / or braking means.
- the block 22 of flexible foam further molds the cap 23 and the pallet 7.
- a precursor foam mixture is injected into the cap 23 in which the casing / pallet assembly has been previously disposed, the whole being then placed in a mold, the foam not penetrating into said mold. casing because of its tightness.
- the locking device 27 of the rotation of the pallet 7 is disposed at the interface 26 allows for some energy absorption in the event of impact of the head of a passenger on the cushion 21 of headrest 1, this due to the deflection of said pallet observed during such an impact.
- the headrest 1 comprises energy absorbing means arranged to break under the effect of a threshold torque applied to the pallet 7 to allow said pallet to move to its rear adjustment position.
- the energy absorbing means may be integrated in the device 27, the latter being sized to break from the application of the threshold torque.
- a zone of weakness including localized thinning material, disposed near the device 27, said area being dimensioned to break from the application of the threshold torque.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1350708 | 2013-01-28 | ||
| PCT/FR2014/050150 WO2014114898A1 (fr) | 2013-01-28 | 2014-01-27 | Appui-tête de siège de véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2958770A1 true EP2958770A1 (fr) | 2015-12-30 |
Family
ID=48289298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14704616.3A Withdrawn EP2958770A1 (fr) | 2013-01-28 | 2014-01-27 | Appui-tête de siège de véhicule automobile |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2958770A1 (fr) |
| WO (1) | WO2014114898A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2747349B1 (fr) | 1996-04-16 | 1998-06-26 | Cera | Ensemble appui-tete pour siege,notamment de vehicule automobile |
| DE102005020276B3 (de) * | 2005-04-28 | 2006-09-14 | Grammer Automotive Gmbh | Kopfstütze für Fahrzeugsitze |
| DE102010013857B4 (de) * | 2009-04-01 | 2015-02-05 | Johnson Controls Gmbh | Kopfstütze und Fahrzeugsitz |
| DE102010023403B4 (de) * | 2010-06-11 | 2012-09-27 | Johnson Controls Gmbh | Kopfstütze, insbesondere für ein Kraftfahrzeug |
-
2014
- 2014-01-27 WO PCT/FR2014/050150 patent/WO2014114898A1/fr not_active Ceased
- 2014-01-27 EP EP14704616.3A patent/EP2958770A1/fr not_active Withdrawn
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2014114898A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014114898A1 (fr) | 2014-07-31 |
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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 |
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| 17P | Request for examination filed |
Effective date: 20150728 |
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| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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| 17Q | First examination report despatched |
Effective date: 20181203 |
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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: 20210316 |