WO2009015657A2 - Appuie-tête à mécanisme actif et procédés pour le faire fonctionner - Google Patents

Appuie-tête à mécanisme actif et procédés pour le faire fonctionner Download PDF

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Publication number
WO2009015657A2
WO2009015657A2 PCT/DE2008/001266 DE2008001266W WO2009015657A2 WO 2009015657 A2 WO2009015657 A2 WO 2009015657A2 DE 2008001266 W DE2008001266 W DE 2008001266W WO 2009015657 A2 WO2009015657 A2 WO 2009015657A2
Authority
WO
WIPO (PCT)
Prior art keywords
headrest
designed
headrest according
rods
cable
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
Application number
PCT/DE2008/001266
Other languages
German (de)
English (en)
Other versions
WO2009015657A3 (fr
Inventor
Helmut Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inova GmbH
Original Assignee
Inova GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inova GmbH filed Critical Inova GmbH
Publication of WO2009015657A2 publication Critical patent/WO2009015657A2/fr
Publication of WO2009015657A3 publication Critical patent/WO2009015657A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
    • B60N2/4228—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the rear
    • 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 with active mechanism, a so-called active headrest, as well as their operating method.
  • Active head restraints are head restraints that position themselves in the event of an accident requiring protection. to move forward or, more generally speaking, to bring their front side facing the occupant head closer to the occupant head.
  • the present invention aims to provide an inexpensive and simple and reliable active headrest.
  • a headrest which increases in a crash or brings the head facing the Insassenkopf closer to Insassenkopf or the Insassenkopf facing front is brought closer to Insassenkopf achieved in that the drive and movement mechanics of two Z-shaped bent headrest rods is rotated by up to 180 degrees.
  • the headrest is moved from a rearward normal position or comfort position to a front guard position or safety position so that its front facing the occupant head is positioned closer to the occupant head.
  • the headrest rods have an approximately Z-shaped cranked shape
  • the mechanism is designed and includes an adjustment or is coupled with an adjustment to the headrest rods from a normal position in which the offsets of the headrest rods away from the occupant, up to 180 degrees in a protective position by the offsets of the headrest rods are rotated from the normal position of the latter to the inside.
  • the adjustment drive can be driven by the deceleration of the upper body of an occupant or by a crash signal, and / or the adjustment can lock the headrest in a plurality of respective positions and / or locked against a return movement or lockable in a head impact.
  • the adjusting drive can be designed so that after a crash again a comfort position of the headrest can be adjusted, and / or the adjustment of the drive a "pre-crash" Function ", is provided in particular that a servomotor, which is controlled by crash or danger signals, the headrest already in a dangerous situation from a comfort position in a crash position and preferably also moved back again as soon as the danger is over.
  • the adjusting drive for movement contains a Bowden cable or is coupled to a Bowden cable, and / or that a Bowden denzugantrieb is provided which is designed such that it transmits the body movement of an occupant in a rear crash on the adjustment mechanism , and / or that a Bowdenzugantrieb is provided and is driven by a resiliently suspended in the seat frame cross band that transmits its movement in a crash on the movement of the Bowden cable, and / or that the adjustment is designed such that in the event of a crash an electromagnetic clutch decouples a servomotor and the force of a spring performs the forward movement of the head restraint sufficiently quickly, and / or that a restraining mechanism is included and designed such that it unlatches, in particular so that the head restraint returns to an initial or Comfort position can be brought.
  • the mechanism includes a slotted guide on which a latch is formed, in particular, the latch is designed such that the headrest locked only at a head impact, and or the latch is designed such that a spring the Rastung free only when a head impact takes place.
  • the adjustment is carried out that a band with greater load by means of a Bowden cable performs a movement of the headrest forward and a spring when eliminating a larger load from behind the headrest turns back into a comfort position, and / or that the mechanism is designed such that the forward movement of the offsets of the headrest bars locked in different positions at a head impact, and / or that the mechanism is designed such that the headrest automatically returns to its initial position by the spring force after the application of the head is withdrawn as soon as there is no more backward movement of the occupant, and / or that the mechanism includes a drive mechanism and a latch mechanism, and that the drive mechanism is contained, coupled or docked outside the headrest for placement within a seat back is pelbar and the locking mechanism is located within the headrest, and / or that the mechanism is designed such that the forwardly moving headrest is locked in a Kopfaufschlag within the headrest, and / or that the mechanism is designed such that the Headrest without load returns to its original position, and
  • Still ranted alternative or combined embodiments are preferably such that the adjustment accommodates within the headrest and leaf springs, which simultaneously serve to secure the position and the unlatching of ratchet teeth, and / or that the adjusting drive is designed so that by changing a rear zero of the adjustment, the headrest can be made at least partially forward by means of the mechanism for comfortable headrest, and / or that the adjustment includes a cable with a shell that is changeable in position, and / or that the adjustment drive a first cable to Adjustment of the headrest rods in a crash and a second cable containing, by the initial position of the first cable is changeable and the self-locking and in particular self-locking by means of thread, screw, locking lever or the like.
  • a locking toothing provided in the headrest and designed so that are formed with the headrest rods rotating ratchet teeth such as a gear to a sleeve
  • the fixed e.g. are connected by a positive connection with a rack
  • a headrest box is provided and designed so that locking teeth for the headrest are integrated or molded
  • a headrest box is provided and designed so that a guide of the headrest rods is integrated and only forward to a seat towards backlash for latching or unlatching a toothing is given, and / or that all items are designed so that they can be made without undercuts in tools, and / or that a cable with two connections carried out in such a way is that both headrest rods can be rotated simultaneously and in opposite directions, and / or that the adjustment contains a worm drive, in particular inevitably with self-locking the normal position of the bent headrest rods changed so that a part of the rotational movement potential of the head
  • the adjusting drive prestressed for adjusting the headrest rods in a crash counter-rotating coil springs holding each other in the starting position (Fig. 9), more preferably two latching rods hold the coil springs in tensioned starting position and or latching bars are included, which are moved against each other when triggered in a crash, and / or two latching bars are included, one of which is provided with a plurality of locking holes is permitted and the other has a matching hooks in the detent holes, in particular, the locking of the latching bars are designed such that it is a so-called "servo" - locking, more preferably, the servo-lock has a latching hook, the front Edge has a slope which supports a part of the spring force in the horizontal direction in a detent hole and wherein additionally preferably the slope of the latching hook is formed such that a part of the spring force points in the vertical direction and thus acts to unlock the two locking bars.
  • Suitable projecting variants can be further developed by virtue of the fact that a solenoid fastened to a rod is provided for holding the latching position and is preferably designed such that on the one hand the magnetic force overcomes the unlatching force and thus causes the latching and on the other hand with the magnetic force switched off a spring supports the decoupling of the two rods, wherein furthermore preferably the electromagnet is designed such that the electromagnet is powerless switchable for comfort adjustment of the headrest, and after adjustment of the headrest in a desired position then switching on the Elektromag- neten the latching hook in the detent hole can lock, which serves the right comfort position.
  • a cable is provided for locking and unlocking the locking mechanism, wherein it can further be provided in particular that the latching mechanism is designed such that a remaining force of the servo-locking by a used against the cable spring for locking and unlocking a wedge, which is slidably disposed in a correspondingly wedge-shaped backdrop, which in particular also takes over the mutual leadership of the locking rods.
  • the element of wire is designed such that the wire on one side of the backrest cheek and fixed to the opposite side is rotatably supported, and / or the wire is possibly further formed such that it tries to hold itself as a torsion spring in its initial position, and / or the wire is provided with a Auskröpfung which is designed and arranged in that, in the event of a crash, the movement of an occupant is converted into a rotary movement of the wire, and / or that the wire has a specially shaped arm which is designed and arranged such that the movement of the wire is converted into a lifting movement of a cable (Fig 20).
  • the adjustment drive includes a cable pull mechanism which is designed and connected in such a way that it pulls the headrest forward in the direction of an occupant's head in the event of a crash, weaker coil springs being “reversed”. are biased and against which in a crash then stronger power of the cable keep the headrest in its initial position.
  • the operating method for a headrest with active mechanism according to the invention is such that the j esure above variants and versions of the headrest are operated as intended and / or design, the method features directly or indirectly from the design features of the headrest, their components and functions and effects readily apparent to one skilled in the art.
  • the present invention shows various alternative mechanics, depending on whether, for example, the deployment in a crash is to be controlled via the weight of the occupant or via a crash sensor. Also covered by the present invention are possibilities for "pre-crash adjustment", i. a better positioning of the headrest already in a dangerous situation and not only in the accident itself.
  • FIG. 1 shows schematically in a sectional view a first Ausbowungsbeipiel a headrest in a normal position, such as in particular shows a comfort position
  • FIG. 2 schematically shows, in a sectional view, the first embodiment of the headrest according to FIG. 1 in a protective position or safety position, FIG.
  • FIG. 3 schematically shows, in a partially sectioned view, a second embodiment of a headrest
  • Fig. 4 shows schematically in a cutaway enlarged view details of the second embodiment of the headrest according to Fig. 3,
  • Fig. 5 shows schematically the section A-A of Fig. 4,
  • Fig. 6 shows schematically the section BB of Fig. 4, 7 schematically shows a sectional view of a third embodiment of a headrest in a normal position and in a protective position,
  • Fig. 8 shows schematically in a sectional view an example of size relationships of components of the third embodiment of the headrest according to Fig. 7,
  • FIG. 9 shows schematically in a sectional view a third embodiment of a headrest
  • FIGS. 8 and 9 show schematically in a sectional view details relating to the embodiments of the headrest according to FIGS. 8 and 9,
  • Fig. 11 shows schematically a sectional illustration parallel to the illustration in Fig. 10, with details relating to the embodiments of the headrest according to Figs. 8 and 9,
  • FIG. 12 shows schematically in a sectional view a fourth embodiment of a headrest
  • FIG. 13 shows a schematic longitudinal sectional view of a fifth exemplary embodiment of a headrest
  • Fig. 14 is a schematic cross-sectional view of the fifth embodiment of the
  • Headrest according to FIG. 13 shows
  • Fig. 15 shows in a schematic representation of the fifth embodiment of the headrest according to FIGS. 13 and 14 in a normal position and in a protective position, C
  • FIGS. 13 to 15 shows schematically in a cutaway enlarged view details of the fifth embodiment of the headrest according to FIGS. 13 to 15,
  • FIG. 17 shows schematically in a cutaway enlarged view further details of the E fifth embodiment of the headrest according to FIGS. 13 to 16, 18 schematically shows in a cutaway enlarged view details of a sixth embodiment of a headrest and in particular a further alternative of locking and unlocking analogous to the illustrations according to FIGS. 16 and 17, FIG.
  • Fig. 19 shows schematically in a cutaway enlarged view further details of the sixth embodiment of the headrest according to Fig. 18,
  • FIGS. 13 to 19 shows a schematic representation of details of a seventh exemplary embodiment of a headrest, which details, in particular as further details, can be combined with the fifth and sixth exemplary embodiments of the headrest according to FIGS. 13 to 19,
  • Fig. 21 shows in a schematic representation details of an eighth embodiment of a headrest, which details can be combined in particular as further details with the fifth and sixth embodiments of the headrest according to FIGS. 13 to 19.
  • Fig. 1 shows cranked headrest rods 1, which result in a displacement between a seat back 2 and a headrest 3 in favor of a comfortable position of the headrest.
  • Fig. 2 shows the tilted up to 180 degrees headrests 3 with the headrest rods 1 in favor of an optimal position of the headrest 3 in a crash.
  • Li of Fig. 3 is a drive mechanism or generally an adjustment 34 of a mechanism for headrest adjustment laid in a seat back frame 35.
  • the adjustment is biased by a coil spring 17.
  • the lower part of the headrest rods 1 or 36 is mounted in the seat back frame 35 and in a transverse strut 37.
  • the cross member 37 is provided for this purpose with a base plate 38, in which two sleeves 39 are rotatably mounted. These sleeves 39 have a positive connection with the headrest rods 1 and 36, i. that when these sleeves 39 are rotated, and the headrest rods 1 and 36 are rotated.
  • These sleeves 39 are each mounted at the top in a height adjustment 40.
  • the height adjustment 40 is not described in more detail, since there are many variants in reality, which the skilled person knows how to use.
  • the headrest rods 1 and 36 can rotate 180 degrees.
  • annular grooves 41 are mounted in at least one of the headrest rods 1 and 36, respectively.
  • a cable 42 engages and rotates in a crash, this sleeve 39 and thus the headrest rods 1 and 36 simultaneously with their bend 43 forward against the head of a hisa skill to be supported.
  • the cable 42 is attached to a suspended in springs band (not shown).
  • the springs When the operator experiences an acceleration component from the rear, the springs are stretched and the cable 42, which is secured in series to both sleeves 39, rotates them.
  • the sleeves 39 are surrounded by torsion springs 51, as shown in FIG.
  • the torsion springs 51 may preferably be formed by the coil springs 17.
  • the upper end portions of the headrest rods 1 and 36 above the offsets 43 are stored in the headrest box 44 up and down.
  • Above the headrest rods 1 and 36 also have a positive connection 45 with further sleeves 46.
  • These sleeves 46 are each provided with a Rundumvertechnikung 47 which engages the Kopfaufschlag in a matching linear toothing 48, which is part of the headrest box 44. Hits the head on the Headrest 3 and 49, engage both teeth 47 and 48 into each other. With this blocking a backward movement of the headrest 3 and 49 is prevented.
  • two leaf springs 50 push the gears 47 and 48 apart again.
  • the teeth are designed in their inclination, that the sleeves 46 can rotate in the direction of the head support, but block in the opposite direction.
  • Fig. 4 shows the assembly of the lower sleeves 39 in detail.
  • the passage for the headrest rods 1 and 36 has with the latter at the lower end of a positive connection 45 for rotating entrainment of the headrest rods 1 and 36.
  • About 90% of the passage of the headrest rod 1 and 36 through the sleeve 39 is round.
  • Fig. 5 shows the section A-A of Fig. 4 and thus the execution of torsion springs 51, which support each other. This can also be a torsion spring 51, which is supported on the seat back frame 35.
  • the sleeves 39 are shown below in an enlarged diameter 52 for the connection of the cable 42 and the torsion spring 51 shown in FIG. 6 according to the section B-B of FIG.
  • the cable 42 is successively mounted or attached to both sleeves 39 so that the sleeves 39 rotate in opposite directions.
  • the sleeves 39 show here the positive connection 45 at the lower end.
  • an adjustment of the headrest 3 or 49 is provided horizontally forward in the drive mechanism or the adjustment 34 as a comfort adjustment of the headrest 3 and 49, respectively.
  • the headrest-side end of the cable with a second cable for comfort 53 is moved longitudinally.
  • both cables 42 and 53 are mounted in a double tube 54.
  • the cable 42 for safety is longitudinally movable in the double tube 54.
  • the cable 53 is fixed in the double tube 54.
  • a "boom" 55 is attached and at this the end of the cable 53. If the cable 53 is moved, this moves the sleeve of the cable 42 and thus the starting position of the headrest 3 and 49.
  • a lever with detent or a knob with self-locking thread or the like (not shown).
  • the increase in diameter 52 of the sleeve 46 is provided with a stop cam 56 which limits the rotation of the head restraint rod 1 or 36 to 180 degrees.
  • the bearings 57 of the sleeve 46 are an integral part of the base plate 38, which is connected to the crossbar 37. On the base plate 38, a wall 59 is integrated, which prevents the cable 42 from slipping from the increase in diameter.
  • FIG. 7 shows a vertical longitudinal section of a headrest 3 or 49, in which the Abkröp- tion 43 of the headrest rods 1 and 36 is not visible Thus, a lower minimum thickness of the headrest 3 and 49 is given.
  • Shown here is the undercut-free headrest box 44 with its integrated linear toothing 48 and the upper sleeve 46 with the All-round toothing 47.
  • the sleeves 46 are each mounted laterally and rearwardly in the headrest box 44.
  • the sleeve 46 is supported by two leaf springs 50, which are responsible for the positive or non-positive teeth 47 and 48.
  • the leaf springs 50 are in this example above and below the all-round teeth 47 passed and stored at their ends in the headrest box 44.
  • the headrests 3 and 49 are fixed to the rotating sleeves 46 in height.
  • the headrest box 44 is covered at the bottom with a lid 60 which also houses the lower two bearings of the headrest rods 1 and 36, respectively.
  • FIG. 8 shows approximately the minimum dimensions of a headrest 3 and 49, in which the respective bend 43 of the headrest rods 1 and 36 is visible.
  • the headrest box 44 is here made of two halves and welded together to make it. The rest corresponds to what has been said about FIG.
  • FIG. 9 shows a vertical cross-section through a half headrest 3 or 49. Shown is a section through the head-pillar box 44, the upper and lower bearing, the integrated linear toothing 48, the all-round toothing 47 of the form-fitting sleeve 46 and a lateral Bearing 62 in a bearing 61 in the headrest box 44.
  • a screw 63 of the two leaf springs 50 is shown as well as their storage in slots 64 in the headrest box 44.
  • FIGS. 8 and 9 shows that shown in FIGS. 8 and 9 and described in horizontal section DD above the all-round teeth 47 in a half headrest 3 or 49.
  • the function and the attachment of the leaf spring (s) 50 can be seen here.
  • 11 shows the horizontal section C-C of the half headrest according to FIG. 10 further above through the sleeve 46 at the location without toothing.
  • FIG. 12 shows an alternative of the comfort adjustment in the headrest 3 or 49 directly.
  • Worm wheels 65 are rotatably mounted as discs 66 on the headrest rods 1 and 36, as shown. Their end stops 67 turn underlying driving discs 68 which are fixedly connected to the headrest rods 1 and 36, from its end position to the front as a comfort feature of the headrest.
  • the drive takes place via a setting wheel 69 laterally of the headrest 3 or 49 by means of worm gears 70 on a shaft 71, which in the
  • Headrest box 44 is mounted. From this, selected for comfort starting position moves the headrest 3 and 49 in a rear-end crash forward. Since the setting wheel 69 is stationary, the headrest 3 or 49 laterally requires a slot 72 for the passage of the shaft 71. This headrest adjustment can of course also be made in the seat back frame 35, engaging the other end of the headrest bars 1 and 36, respectively.
  • This headrest does not show the active mechanism, as in today's well-known products.
  • the drive mechanism is in the seat back, where the drive also comes from. As a result, there is no cable or electrical cables that must be performed by the headrest. Therefore, the headrest is also removable.
  • the movements shown here with cables are also electrically possible.
  • the crash adjustment can also be done pyrotechnically “even faster”. It can also be biased a spring and unlocked with cable, magnet or pyrotechnic.
  • Coil springs 17 (see also Figs. 3 and 4) biased rotatable headrest rods 1.
  • Two counter-supported locking rods 73 and 75 are attached to tabs 77.
  • the tabs 77 themselves are part of the rotatable drive mechanism or the adjusting drive 34.
  • the locking rod 75 has at the end of a latching hook 76 which hooks into one of locking holes 74 of the locking rod 73.
  • 15 shows the angle of rotation 78 of the headrest rods 1 and the end positions of the headrest 3.
  • the locking rods No. 1 and No. 2 (73 and 75) are guided parallel to each other in a gate 79 (FIGS. 16 and 17).
  • the arrows 80 in Fig. 16 show the forces acting.
  • the coil springs 17 want to press the latching hook 76 out of the latching holes 74.
  • a transmission ratio of the forces of the coil springs 17 is formed to the unlocking force. It's called the servo lock.
  • An electromagnet 82 holds the locking bars No. 1 and No. 2 (73 and 75) together.
  • the solenoid 82 is de-energized and the latching hook 76 slips out of the detent hole 74.
  • the coil springs 17 rotate the headrest rods 1.
  • the cylinder spring 83 presses both Locking bars No. 1 and No. 2 (73 and 75) limited by the gate 79 apart.
  • the solenoid 82 is de-energized by means of a switch (not shown). At the desired position, the magnetic force is switched back on and thus both locking bars No. 1 and No. 2 (73 and 75) are locked.
  • FIGS. 18 and 19 show a further alternative of locking and unlocking with a cable pull 84, which pulls out a wedge-shaped slide 85 from the slide 79 in the event of a crash or in the comfort adjustment and thus allows the previously described unlocking.
  • a cylindrical spring 86 into the locking position (FIG. 18).
  • Fig. 20 shows the drive for the cable pull 84 according to the fifth and the sixth embodiment of the headrest 3.
  • a specially shaped spring steel wire 87 is secured on one side of the seat back cheek 88 against rotation. Further, the spring steel wire 87 is supported so that the first part works as a torsion spring 89.
  • the central bend 90 is used to absorb the rearward movement of the occupant.
  • FIG. 21 A further alternative to the servo lock 93 is shown in FIG. 21.
  • the servo lock 93 is used with an active head rest 94 according to the four-lever pivot principle 95.
  • Four levers 96 are biased by a spring, in this case a coil spring 97.
  • a servo latch 93 unlocks this preload and a four-link system 98 causes the front half of the headrest 94 to snap forward.
  • the servo-lock 93 connects one of the hinge points 99 by means of an entanglement 100 with a latch 101.
  • a bevel 102 of the latch lever 103 determines the ratio of the force to the front and the unlocking force.
  • the unlocking of the entanglement 100 is controlled by an electromagnet 104 whose extended pin 105 prevents the unlocking.
  • the electromagnet 104 may be mounted as shown in phantom.
  • the solenoid 104 with its magnetic force must hold the locking lever 103 in position.
  • the four-link system 98 is pushed by hand against the force of the clock spring 97 into its latched starting position.
  • the locking lever 103 with a another small coil spring 106 biased, which can snap him. This snapping allows the solenoid 104 to become active again by means of switches (not shown).
  • a backdrop allows for the locking lever 103 only a limited way, so that its zero position can snap him into the catch.

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  • 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

L'invention concerne un appuie-tête comprenant des tiges d'appuie-tête et un mécanisme. Les tiges d'appuie-tête ont une forme coudée approximativement en Z et le mécanisme contient un entraînement de réglage ou est accouplé à un entraînement de réglage et est conçu pour faire pivoter les tiges d'appuie-tête de 180 degrés au maximum d'une position normale dans laquelle les coudes des tiges d'appuie-tête sont orientés à l'opposé de l'occupant dans une position de protection, les coudes des tiges d'appuie-tête étant tournés de leur position normale en direction de l'occupant. L'invention concerne également des procédés pour faire fonctionner un appuie-tête à mécanisme actif.
PCT/DE2008/001266 2007-07-31 2008-07-31 Appuie-tête à mécanisme actif et procédés pour le faire fonctionner Ceased WO2009015657A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202007010618.1 2007-07-31
DE202007010618 2007-07-31
DE202007012515 2007-09-06
DE202007012515.1 2007-09-06

Publications (2)

Publication Number Publication Date
WO2009015657A2 true WO2009015657A2 (fr) 2009-02-05
WO2009015657A3 WO2009015657A3 (fr) 2009-03-26

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PCT/DE2008/001266 Ceased WO2009015657A2 (fr) 2007-07-31 2008-07-31 Appuie-tête à mécanisme actif et procédés pour le faire fonctionner

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Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080436A (en) * 1990-04-06 1992-01-14 Grammer Ag Head support for a seat such as a vehicle seat
FR2891215B1 (fr) * 2005-09-27 2009-03-27 Faurecia Sieges Automobile Siege de vehicule comportant un appui-tete

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