EP2049361A1 - Dispositif de sécurité pour un siège - Google Patents

Dispositif de sécurité pour un siège

Info

Publication number
EP2049361A1
EP2049361A1 EP07801229A EP07801229A EP2049361A1 EP 2049361 A1 EP2049361 A1 EP 2049361A1 EP 07801229 A EP07801229 A EP 07801229A EP 07801229 A EP07801229 A EP 07801229A EP 2049361 A1 EP2049361 A1 EP 2049361A1
Authority
EP
European Patent Office
Prior art keywords
safety device
barrier
self
holding
seat
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Withdrawn
Application number
EP07801229A
Other languages
German (de)
English (en)
Inventor
Rolf Wich
Uwe Fleckenstein
Alexander WÜSTENDÖRFER
Peter Herwig
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.)
Magna Electronics Europe GmbH and Co OHG
Original Assignee
Magna Electronics Europe GmbH and Co OHG
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 Magna Electronics Europe GmbH and Co OHG filed Critical Magna Electronics Europe GmbH and Co OHG
Publication of EP2049361A1 publication Critical patent/EP2049361A1/fr
Withdrawn legal-status Critical Current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
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion
    • B60N2/42763—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion with anti-submarining systems
    • 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
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
    • B60N2/4279—Seats or parts thereof displaced during a crash characterised by the triggering system electric or electronic triggering

Definitions

  • the invention relates to a safety device for a seat for a vehicle, in particular a motor vehicle, with an at least partially flexible seat, with a substantially to be arranged under the seat barrier means, which is against a forward displacement of an occupant in the inertial direction, in particular in an accident, set up, and a use of a self-locking agent according to claim 30 and a method of actuating a barrier means according to claim 31.
  • DE 3631881 discloses a vehicle seat with an erectable barrier means and a belt system.
  • a disadvantage of the known system of the prior art is that it exerts a poor retention effect on the occupant.
  • the system has a soft structure and the power dissipation into the seat is inadequate.
  • the system is not suitable for the rear rows of seats in a motor vehicle because of the large possible forward displacement of the occupants.
  • Object of the present invention is to allow the occupant in a crash event a secure fit in the seat.
  • a safety device mentioned above, wherein the barrier means is held in the erected state by means of a holding means which is held against a return movement from a state of the barrier means corresponding final state of the holding means substantially without additional force, wherein the holding means in particular a Doublehemmungsmit- tel and / or a latchable ramp means and wherein after the establishment of the barrier means to reset the barrier means, in particular by means of the holding means, after a period of time is sufficient to have retained the occupant against a forward displacement.
  • the solution of the problem provides a simple occupant protection system for means of transportation, especially for motor vehicles for almost every speed range, which also ensures a reliable and very stable grip of the occupant in the seat.
  • an improved prevention of the forward displacement of the occupants after a frontal accident event is ensured by positive engagement between the barrier means and the ischial bone on the pelvic bone, in particular also with simultaneous tightening of the two belt points on the seat.
  • the resetting of the barrier means after a certain short time can also be a resetting of a barrier means in another way and for an arrangement held by means other than a holding means, which according to the invention preferably within the advantageous period of time after installation the Berriereffens is to make.
  • the barrier means can be held by the holding means, in particular self-locking means in a mechanical way, so that the system comes to rest without force and can not be moved by comparable force by the occupant or accident.
  • the self-locking means a reliable and very stable grip of the occupant is ensured in the seat without having to take further security measures. Due to the holding function, in particular the self-locking, the direction of movement of the drive can not be reversed by the weight of the occupant. An installation is special Also possible for seats with reduced Vorverlagerungsplatz, since the advancement is greatly reduced by the proposed invention.
  • the time duration is between about 30 ms and about 70 ms, in particular about 50 ms. In this way, it is ensured that the occupant is not raised too high relative to the seat, for example, to hit against a roof surface.
  • the holding means for resetting the barrier means is at least partially lowered into a recess which is arranged below the holding means and in particular only after the holding means has been set up. In this way, a particularly fast and safe lowering is to be made.
  • the holding means is in particular pivotally held on a foot and is at least partially herunterzuschwenken in the recess by means of a rotation about the pivot axis is advantageous.
  • the self-locking means has a wedge surface with a predetermined angle and / or a wedge surface with an at least partially concave and / or convex shape, by means of which the barrier means is to be set up and / or the ramp means has a ramp region and a holding region and by means of a Raststoff is to be held in the final state.
  • the wedge surface and / or by the holding portion of the ramp means a secure mechanically stable hold is guaranteed, so that the barrier means can be placed reliably.
  • a reduction in the height can be achieved in a simple manner, if the wedge surface of the self-locking means is at least partially hinged, in particular in the upper region. When the wedge surface descends below the surface of the barrier system, a reduced resting level of the barrier system is achieved while maintaining constant stability.
  • a reliable unfolding of the wedge surface is given when the wedge surface in the folded-down area substantially before setting up and / or during deployment of the barrier means on the wedge surface is substantially hinged to a final state, in particular by means of an erector, in particular by means of a displacement of the wedge surface relative to a footprint.
  • a reproducible contact with good power transmission is given if the barrier means via at least one contact element over which the barrier means is to unfold, non-positively and / or positively engaged with the wedge surface of the self-locking means and / or is held in the holding region of the ramp means.
  • a particularly fast and directionally stable activation is possible if the activation of the self-locking means by displacement of the wedge surface of the self-locking means, in particular linear displacement in the inertial direction is to make and / or the activation of the ramp means by means of displacement, in particular linear displacement, the ramp area until reaching an end position of the Contact element in the holding area.
  • the contact element is unrolled for example by the activation of the self-locking means on the wedge surface, and thus at the same time rotates the barrier means connected to the contact element.
  • An adapted to the sensorization of an accident event activation is when the displacement of the wedge surface by at least one compared to the advancement speed of the occupant fast drive means by applying shear and / or tensile force is to make.
  • the barrier means is formed in two parts and is arranged on both sides of the holding means, in particular of the self-locking means and / or the ramp means, wherein a width of the barrier means is in particular smaller than the width of the pelvic bone and in particular greater than a distance of the acetabular bones ,
  • a drive means is reversible and / or a drive means irreversible.
  • the invention can be operated at the same time with one or with several drive means.
  • the reversible drive means is designed for multiple activation and can also be switched on in the forefront of an accident, for example in a forward-looking sensor. However, if the accident could be prevented, the drive means is easily deactivated again.
  • the focus of the drive means can be set to a quick reaction, which activates the system after fractions of seconds have been sensed by an accident event.
  • a very fast reaction with a good power transmission is when the drive means comprises a pyrotechnic unit and / or a unit with gas release.
  • the pyrotechnic unit or the gas filling can then be replaced or refilled after activation, if necessary.
  • a reliable, reversible drive means is present when the drive means has a toothed wheel driven by an energy store, in particular a torque store, in particular a helical spring.
  • the gearwheel then preferably engages a toothed rail fastened to the self-locking unit and displaces the self-locking unit when actuated.
  • the activation of the barrier means is carried out substantially simultaneously with an activation of a restraint system, in particular a belt tensioner in a buckle and / or Gurtendbeschlags, in particular on the seat back, and / or substantially simultaneously with an activation of a neck support system, wherein
  • the activation of the neck support system by unlocking a neck support in the direction of the neck of the occupant is to make.
  • several functions are exercised simultaneously with the activation of a drive means. This leads to an accelerated and very well coordinated reaction.
  • the invention By combining with a restraint system the occupant is pulled by the restraint system even more strongly in the seat in addition to the pressure exerted on him by the barrier means and thus the effect of the barrier means is reinforced again.
  • the systems can also be operated reversibly and are pre-crash-capable.
  • the invention provides a complete restraint system with improved occupant kinematics for tuning the overall system.
  • a safe and fast force transmission is possible if the restraint system and / or the neck support system is connected to the holding means, in particular the Dihemmungs- means in particular at least one respective separate power means, wherein upon activation of the holding means, in particular the self-locking means force at the same time on the restraint system and / or the neck support system is exercised.
  • a power steering means in the form of at least one sheathed cable means of the holding means, in particular the self-locking means via a Umlenkkonsole to the buckle or Gurtendbeschlag is running, with tensile forces are derived from the cable means on the cable means arranged around the jacket means , which is supported on the Umlenkgurtkonsole, so that at least one cable middle section between holding means, in particular self-locking means and Umlenkkonsole is held substantially free of force.
  • the freedom from force, the cable means and the holding means in particular relieves the self-locking means and the system works longer zuverässig.
  • a compact and easy to install embodiment is when the drive means is formed integrally with the holding means, in particular the self-locking means.
  • the particular reversible drive means can be actively activated preventively before an accident event. This increases the active safety of the system without requiring additional parts of the system to be replaced after activation.
  • An optimized response time for most accident events occurs when the propulsion system is triggered about 250 ms before a possible accident event.
  • the particular irreversible drive means can be activated passively in response to a request for action, in particular after the sensor has been sensed of an accident event.
  • the barrier means is equipped with a warning function, in particular when leaving the lane of the vehicle, wherein the warning function is designed in particular as a vibrator system, which is in particular adapted to the contact element to move the barrier means.
  • a safe reactivation of the drive means for displacement of a support means is possible to cause a pressure change in a pressure space within a support means for the wedge surface by the activation of a drive means for displacement of the carrier, in particular by a reversible drive, in particular with an energy storage device, in particular with a through a torque accumulator driven gear, wherein the pressure chamber by means of a valve, in particular a check valve with a ball acted upon by a spring, to vent for pressure equalization.
  • a unit with gas release in particular a micro gas generator is provided as the drive means and a reversible drive, in particular with an energy store, in particular with a gear driven by a torque accumulator, so that initially a slow, precautionary hiring of the barrier means by the gear drive can take place, wherein the valve aerates the pressure chamber for pressure equalization, and then, in particular if an accident event is actually detected in the same period, in addition to ignite the unit with gas release, so that The employment of the barrier means is to accelerate, whereby the pressure space, by the unit is activated with gas release is closed by the valve, in particular by the check valve with one of a spring-loaded ball, for rapid pressure build-up.
  • a simple design and at the same time safe embodiment is when the valve is arranged at a head end of the pressure chamber.
  • valve closes the pressure chamber in the active position and allows air passage in the inactive position.
  • valve has a spring-loaded ball, which closes the pressure chamber at pressure build-up and is displaced by depressurizing the spring into the air passage enabling position.
  • the object is also achieved by the use of a holding means which is held against return movement from an initial state of a barrier means final state substantially without additional force, in particular a self-locking means for securing the barrier means in contact with a seat in a seat of a vehicle in an erected condition, which is to be set up against forward displacement of an occupant in the direction of inertia, in particular in the event of an accident, and wherein, after the barrier means has been set up, the barrier means must be returned, in particular by means of the holding means, after a period of time which is sufficient; to have withheld the inmates from advancing.
  • a holding means which is held against return movement from an initial state of a barrier means final state substantially without additional force
  • a self-locking means for securing the barrier means in contact with a seat in a seat of a vehicle in an erected condition, which is to be set up against forward displacement of an occupant in the direction of inertia, in particular in the event of an accident, and wherein,
  • the object is also achieved by a method for actuating a barrier means in contact with a seat surface in a seat of a vehicle, which is against a
  • the barrier means Forward displacement of an occupant in the inertial direction, in particular in an accident the barrier means is set up and held by displacement of a holding means, in particular a self-locking means, which is held against return movement from a final state corresponding to the raised state of the barrier means substantially without additional force, and wherein after the barrier means has been set up, a reset of the barrier means, in particular by means of the holding means, is performed after a period of time which is sufficient to have retained the occupant against advancement.
  • a holding means in particular a self-locking means
  • the resetting particularly prevents the occupant from experiencing an undesired displacement in the z-axis direction.
  • the object is also achieved by a valve with a spring-loaded ball, which closes a pressure chamber in an active position and allows an air passage in an inactive position, in particular for a safety device according to one of claims 1 to 28, and / or for a seat according to claim 29, and / or a use according to claim 30, in particular for a method according to one of claims 31 to 34.
  • the valve is reliable and low-maintenance to activate and reactivate.
  • the object is also achieved by a wedge surface with a straight and / or at least partially convex and / or partially concave shape, which is at least partially hinged, wherein preferably the upper part is designed to reduce the final height in an inactive state hinged, in particular for a safety device according to one of claims 1 to 28, and / or for a seat according to claim 29, and / or a use according to claim 30, in particular for a method according to any one of claims 31 to 34.
  • the reduction of the overall height is also in other applications to use with a self-locking agent.
  • 1 is a barrier system with barrier means and self-locking means in exploded view
  • 3 is a perspective view of barrier system and restraint system
  • 5a shows a perspective view of barrier system and restraint system
  • Fig.5d is a longitudinal section through a power conduit
  • Fig.6b a seat with restraint system and neck support system
  • FIG. 7b shows a ramp means in the activated state
  • FIG. 8 is a schematic representation of barrier means in front of a pelvic bone of an occupant
  • 10a is a perspective view of a holding means before pivoting
  • 10b is a perspective view of a holding means after pivoting
  • 11a is a perspective view of a holding means with a hinged wedge surface
  • 11a is a perspective view of a holding means with a hinged wedge surface
  • Fig. 12a is a perspective view of a holding means with a valve arranged at the end and Fig. 12b is a representation of a longitudinal section with a valve.
  • Fig. 1 shows a barrier system 33 with a barrier means 2 and a self-locking means 5 in an exploded view.
  • the barrier means 2 is constructed, for example, in two parts, wherein the two barrier means are arranged at a distance which corresponds to the leg distance or the pelvic bone arrangement of an occupant with high probability.
  • the barrier means parts can be made slightly adapted in size and shape, for example, be wider to sufficiently support occupants who have a standard deviating leg distance.
  • An exemplary representation of barrier means 2 in relation to the pelvic bone arrangement can be found in FIG. 8.
  • the barrier means 2 are held rotatably in a bearing shell 34, 35 via a tilt axis 8.
  • exemplary cylindrical contact elements 7 are the barrier means 2 in a conclusive force contact, or in a frictional, force and / or positive connection to at least one wedge surface 6 of the self-locking means 5.
  • exemplary cylindrical contact elements 7 are the barrier means 2 in a conclusive force contact, or in a frictional, force and / or positive connection to at least one wedge surface 6 of the self-locking means 5.
  • is on both sides of Self-locking means 5 each have a wedge surface 6 arranged to allow the contact elements 7 a secure support and power transmission.
  • the wedge surfaces 6, which on the self-locking means 5 in a in are arranged 3 open angle 19 with a predetermined, adapted angle size, pushed under the contact elements 7 of the barrier means 2, that takes place by the adhesion of a rotation of the contact elements 7 and thus a tilting of the barrier means 2 against the inertial direction 3.
  • the barrier means 2 can be activated actively, ie preventively when a possible accident event is detected, or they can be set up passively, ie immediately following the determination of an accident event. Due to the adapted angular size of the wedge surfaces 6, a strong retention of the self-locking means 5 is maintained in this position as intended by the manufacturer. It is thus not possible that by a counterforce of the occupant, whether by its weight or by further movements, a disadvantageous for the occupant provision of the barrier means 2 is executed.
  • the drive means 23 exerts in the example given a linear thrust on the self-locking means 5.
  • the force is applied in the example by a pyrotechnic unit 10, in particular a micro gas generator, which enables a very fast drive.
  • the drive means 23 is irreversible in the present example.
  • the pyrotechnic unit 10, in particular a micro gas generator is replaced after a single operation by a new unit.
  • the drive means 23 is held in the end cover 36.
  • the self-locking means 5, in contrast, slidably disposed in the bearing shells 34, 35, so that by activation of the drive means, a displacement of the self-locking means 5 under the contact elements 7 in the bearing shells 34, 35 fixed but tiltable mounted barrier means 2 can be done. This shift can not be undone by the self-locking of the system in an undesirable manner.
  • a secure hold of the tilted barrier means 2 is made possible without further exercise of a holding force.
  • the self-locking means 5 fasteners 28 for power steering means 18, as shown for example in Fig. 4.
  • the force exerted on the self-locking means 5 thus transfers, for example, to the Restraint system 13, as shown in Fig. 3.
  • the power-conducting means 18 can be led out, for example, via bushings 37 in the end cover 36.
  • FIG. 2a shows a barrier system 33 with barrier means 2 and a self-locking means 5 in the deactivated state.
  • the contact elements 7 are located at a lower end 38 of the wedge surfaces 6.
  • Fig. 2b shows a barrier system 33 with barrier means 2 and a self-locking means 5 in the activated state.
  • the barrier means 2 are now in a raised state 4 by the displacement of the self-locking means 5 and by the unrolled on the wedge surfaces 6 to an upper end 39 contact elements 7, which allows a stop against the inertial direction 3.
  • FIG. 3 shows a perspective view of the barrier system 33 and the restraint system 13.
  • the barrier system 33 is arranged below a seat surface 1 in an area of a seat of a motor vehicle, as shown in FIGS. 6a-b.
  • the barrier means 2 are in the inactivated state.
  • the self-locking means 5 is disposed within the bearing shells 34, 35 and coupled with fastening means 28 to force means 18, which are guided over the end cover 36 through passages 37 to the outside.
  • the power steering means 18 are connected to a restraint system 13.
  • the power line 18 extend from the barrier system to a respective Umlenkkonsole 22 and through it to a buckle 26 and a Gurtendbeschlag 27.
  • the power line means 18 consist for example of an inner cable means 20 and a surrounding jacket means 21.
  • a relief of the cable means 20 of a power line section 24 between the baring system 33 and deflection brackets 22 can take place in the casing 21 in the area between deflecting console 22 and belt buckle 26 or belt end fitting 27.
  • FIG. 4 shows a baring system 33 with an exemplary reversible drive means 9.
  • a rack 29 is arranged for this purpose. net, in which a gear 12 of the drive means 9 is running.
  • the drive energy is supplied by a gear 12 associated energy storage, such as a torque accumulator 11.
  • the energy storage is discharged by a forward movement of the gear 12 and can be reversibly recharged by the reverse rotation of the gear 12.
  • the drive means 9 can be activated, for example, in the sense of an active system preventively when sensoring a possible accident event and if then no danger situation occurs, be disabled again without a unit would need to be replaced.
  • two force means 18 constructed from an inner cable means 20 and a surrounding casing means 21 can be actuated.
  • Fig. 5a shows a perspective view of barrier system 33 and restraint system.
  • FIG. 5 b shows a longitudinal section through a power-conducting means 18 with an inner cable means 20 and a surrounding casing means 21.
  • the cable means 20 is surrounded by a guide means 31 and is connected thereto in a conclusive manner via a connection means 31.
  • In the occupant direction is a directed against the occupant direction blocking means 31.
  • the system is in Fig. 5b in an equilibrium state. From the occupant direction, no force is exerted and the cable means 20 is also unloaded.
  • Fig. 5c shows another distribution of force. A strong force is exerted on the rope and a force greater than zero acts on the occupant.
  • FIG. 5 d shows a further force state, in which it is prevented by the blocking means 32 that, due to a strong pull of the occupant on the force means, a reaction to the tension of the cable means 20 occurs.
  • the force is rather dissipated to the jacket means 21, thereby the cable means is relieved in the further course.
  • Fig. 6a shows a seat 42 in side view, with a seat frame 41 that holds a seat cushion with a seat 1. At the seat cushion, a seat back 15 connects with a hinge point 40 on the seat frame.
  • Shown schematically is a barrier system 33 with a self-locking means 5 inserted into the seat.
  • a restraint system 13 Connected thereto by means of power means 18 is a restraint system 13 with a belt buckle 26 or belt end fitting and deflecting brackets 22.
  • a further force-guiding means 18 is followed by a neck support system 16.
  • FIG. 6 b shows a seat with a restraint system 13 and a neck support system 16 in the activated, erected state 4.
  • the barrier means 2 are tilted counter to the direction of inertia and the restraint system is activated and tightened and the neck rest is displaced forwards so that the occupant feels very well is kept safe and stable.
  • Fig. 7a shows a ramp means 43 in the deactivated state.
  • the ramp means 43 has a ramp region 45 and a holding region 46, as well as a latching rail with a latching means 44 in the front position.
  • a contact element 7 is shown schematically.
  • FIG. 7b shows a ramp means in the activated state.
  • the ramp means has been displaced by an unillustrated drive means in the inertial direction 3, so that the latching means is locked in the last latching position and the contact element 7 has entered the holding region 46 and thus the bar ends 2, not shown, are tilted counter to the direction of inertia.
  • the ramp means 43 may replace the self-locking means in the previous embodiments.
  • FIG. 8 shows a schematic representation of barrier means 2 in front of a pelvic bone of an occupant.
  • the barrier means 2 are formed in two parts and tuned in their width 48 to the pelvic seat bones 47 of the occupant.
  • the width 48 of the barrier means 2 is smaller than the width 50 of the pelvic bone and in particular greater than a distance 49 of the pelvic seat bones 47. In this way, the introduction of force by the barrier means 2 is very localized and there is no unnecessary mass with the holding means, in particular the self-locking means be tipped up.
  • Fig. 9 shows a schematic representation of the pivoting of a holding means.
  • the holding means is pivotally mounted on a pivot axis 52 and can be pivoted in a pivoting direction 53, so that the holding means is returned from the erected position.
  • the barrier means which is not shown here, also reset. As a result, it can be prevented that the occupant is displaced in a direction substantially perpendicular to the seat surface.
  • FIG. 10a shows a perspective view of a holding means prior to pivoting, in particular of a self-locking means 5 with a wedge surface 6.
  • a driving drive means which can be reversible 9 or irreversible 23, is represented within the holding means.
  • a recess in the form of openings 54 is shown, into which the openings 54 corresponding support means 55 of the holding means are lowered, when the holding means is lowered after a short period of time after installation by means of a carriage 56.
  • the openings 54 are still closed.
  • the openings 54 are opened, so that the support means 55 of the holding means can be inserted after a certain period of time and the holding means is lowered.
  • Fig. 10b shows a perspective view of the holding means after pivoting.
  • the support means 55 are lowered into the openings 54 and the holding means its oblique position transferred to a flat position, whereby the barrier means, not shown, is lowered again.
  • Fig. 11a shows a perspective view of a holding means with a hinged wedge surface 6.
  • the wedge surface 6 is constructed in two parts and has a fixed lower portion and in the upper portion 58 thereon hinged in a hinge 73 movable, hinged region 59.
  • the area 59 is folded down in the illustration, whereby the overall height of the holding means is reduced.
  • the fold-down region 59 can be set up by the fold-down region having a contact surface 72 with which it can move up to a support surface 60 in the direction of inertia 3 along a support surface 60 of an installation element an end position is pushed.
  • FIG. 11a shows a perspective view of a holding means with a foldable wedge surface, wherein the end position of setting up the folded-off wedge surface is reached.
  • the hinged wedge surface 6 thus allows a variable reduction in the height at rest of the safety device.
  • the safety device for example, in seats with a low seat cushion depth usable.
  • the movable part of the wedge surface 6 can be mounted on the fixed part of the wedge surface or directly on the support means 61.
  • FIG. 12 a shows a perspective illustration of a holding means with a valve 63 having an opening 69 arranged end-to-end on a head 64.
  • FIG. 12 b shows a representation of a longitudinal section with the valve 63.
  • a micro gas generator 67 is fastened to a piston 69, which is introduced into a hollow pressure chamber 62 of the carrying means 61.
  • a circumferential seal 70 By a circumferential seal 70, a pressure is built up after ignition of the micro gas generator 67 and a thrust in the inertial direction 3. This pressure moves the ball 65 of the valve 63 toward the head end 64 of the support means 61.
  • the ball 65 against the spring force of the spring 66 to a closure of an end opening 69.
  • the inactive position allows the ball 65 by displacement by the spring 66th in the direction of the pressure chamber 62 in the sense of a check valve that over the surrounding overflow 71 an air inlet into the pressure chamber 62 takes place and the Mikrogasgenera- tor with the piston is simply reset to the starting position.
  • the valve is easy to use, for example, in all illustrated variants of the holding means.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de sécurité (51) pour un siège de véhicule (42), notamment de véhicule automobile, comportant une surface de siège (1) au moins partiellement souple, un moyen de barrière (2) à disposer sous la surface de siège (1), qui doit être monté pour empêcher un déplacement en avant d'un passager dans le sens inertiel (3), en particulier en cas d'accident, de manière à ce que le passager puisse, même en cas d'accident, bénéficier d'un appui sûr dans le siège. Selon l'invention, le moyen de barrière (2) est, en position de montage (4), maintenu, à l'aide d'un support et, en substance, sans l'apport d'aucune force, contre un mouvement de recul à partir d'un état final correspondant à la position de montage (4) du moyen de barrière (2), ledit support étant notamment un élément autobloquant (5) et/ou un élément de rampe encliquetable (43).
EP07801229A 2006-08-10 2007-08-10 Dispositif de sécurité pour un siège Withdrawn EP2049361A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006037655 2006-08-10
DE102006060177 2006-12-18
PCT/DE2007/001426 WO2008017302A1 (fr) 2006-08-10 2007-08-10 Dispositif de sécurité pour un siège

Publications (1)

Publication Number Publication Date
EP2049361A1 true EP2049361A1 (fr) 2009-04-22

Family

ID=38830368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801229A Withdrawn EP2049361A1 (fr) 2006-08-10 2007-08-10 Dispositif de sécurité pour un siège

Country Status (4)

Country Link
US (1) US20100164261A1 (fr)
EP (1) EP2049361A1 (fr)
DE (1) DE112007002424A5 (fr)
WO (1) WO2008017302A1 (fr)

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WO2008017302A1 (fr) 2008-02-14
US20100164261A1 (en) 2010-07-01
DE112007002424A5 (de) 2009-07-16

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