EP2714465A1 - Siège enfant équipé d'un airbag - Google Patents

Siège enfant équipé d'un airbag

Info

Publication number
EP2714465A1
EP2714465A1 EP12729021.1A EP12729021A EP2714465A1 EP 2714465 A1 EP2714465 A1 EP 2714465A1 EP 12729021 A EP12729021 A EP 12729021A EP 2714465 A1 EP2714465 A1 EP 2714465A1
Authority
EP
European Patent Office
Prior art keywords
child seat
gas
inflatable structure
lateral
seat according
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Withdrawn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
EP12729021.1A
Other languages
German (de)
English (en)
Inventor
Benedikt Heudorfer
Reiner Nett
Uwe Dierks
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.)
Takata AG
Original Assignee
Takata AG
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 Takata AG filed Critical Takata AG
Publication of EP2714465A1 publication Critical patent/EP2714465A1/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Withdrawn legal-status Critical Current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
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2884—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle with protection systems against abnormal g-forces
    • 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
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2872—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with side rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B60R21/2072—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in children's seats

Definitions

  • the invention relates to a child seat for a motor vehicle according to the preamble of claim 1.
  • energy-absorbing deformation cushions must be positioned at a distance from the child's body, so that their extent to the child's body is limited.
  • the size of the padding forward is also limited to allow acceptable viewing comfort of the child.
  • the Size au ch on the child seat arranged cushion is limited to allow compatibility with different vehicle interiors.
  • the present invention has for its object to provide a child seat for a motor vehicle, which improves the retention effect of the child seat to the effect that the burden of the child's body are reduced in the event of a crash.
  • the invention provides that at least one inflatable structure is arranged on the outside of the child seat, in such a way that the child seat on its outer side Au has at least one first inflatable structure, which inflates when filled with gas substantially in the lateral direction, and on its outside at least a second one has an inflatable structure which inflates in a direction in front when filled with gas substantially.
  • the attached to the outside of the child seat at least one inflatable structure can be supported after inflation in the event of a collision on the vehicle structure and thereby lead to early coupling of the child seat including its occupants to the vehicle deceleration. A relative movement between the child seat and the vehicle structure is avoided or at least reduced.
  • the first inflatable structure which inflates substantially in the lateral direction
  • the second inflatable structure which inflates in a substantially forward direction
  • the first and second inflatable structures may be provided by separately inflatable structures or may form parts of a common inflatable structure, such as one inflatable airbag having two interconnected airbag chambers or airbag sections.
  • the inflatable structure is accordingly arranged on the outside of the child seat body, d. That is, when inflated with gas, the inflatable structure does not inflate toward a child-like body located in the child seat but away from the child seat.
  • the solution according to the invention makes it possible, by means of one or more inflated structures, to use free spaces in the area around the child seat, in particular free spaces between the child seat and a lateral vehicle structure for absorbing energy in the event of a crash.
  • An additional energy absorption path is provided by one or more structures inflated in the event of a crash, thus enabling immediate and maximum energy absorption in the event of a crash (so-called "ride-down effect").
  • the child seat has at least one lateral limiting structure and at least one inflatable structure is arranged on the outside of the lateral limiting structure such that it inflates away in a substantially lateral direction away from the lateral limiting structure.
  • the lateral boundary structure on the outside of which at least one inflatable structure is arranged, is formed for example by a side cheek of the child seat, which is based on a backrest and / or a Head portion of the child seat extends forward and shields the childish body side and in the event of a crash laterally supported.
  • an inflatable structure may also be formed in another region of a lateral limiting structure of the child seat, for example in the side region of the seat region of the child seat.
  • the statement that the inflatable structure inflates away from the lateral limiting structure substantially "in the lateral direction” refers to the state of the child seat installed in a motor vehicle.
  • the term “in the lateral direction” thus refers to a direction that runs transversely to the vehicle's longitudinal direction.
  • the indication of an inflation of the inflatable structure "in a forward direction” means that the inflatable structure is in the vehicle-mounted Condition of the child seat inflates substantially in the vehicle longitudinal direction and extends.
  • the child seat has at least one lateral boundary structure and at least one inflatable structure is arranged on the Au noxseite the lateral boundary structure, that it inflates away in a direction forward from the lateral boundary structure away.
  • the inflatable structure in this case serves primarily for improved head protection of the child's body in the event of a side impact.
  • the inflatable structure is arranged, for example, on or adjacent to the end face of the lateral boundary structure.
  • An embodiment variant of the present invention provides that the inflatable structure, which inflates in the lateral direction, is subjected to a higher pressure in the inflated state than the second inflatable structure, which extends in a substantially forward direction. This allows a fast support of the child seat on a lateral vehicle structure while ensuring a high energy input. By contrast, for the substantially forwardly extending inflatable structure, exposure to a lower pressure suffices to provide a coordinated head protection function for the infant occupant.
  • the at least one gas source is associated with a valve unit with openable valves, which is connected via at least one gas line to the at least one inflatable structure.
  • the gas source is formed, for example, as a cold gas generator. By Opening the valves in the event of a collision, inflation of the inflatable structures is provided.
  • an integrated into the child seat control means may be provided, which is provided and adapted, in the event of a collision of a motor vehicle in which the child seat is arranged to control the gas source or a unit connected thereto such that gas to inflate the at least one inflatable structure is provided.
  • the control device may comprise a detection unit, which is designed and provided to detect whether the child seat is coupled to an ISOfix locking of a vehicle, wherein the control device triggers a supply of gas only for this case. As a result, an undesirable triggering is avoided, for example, when dropping the child seat.
  • control device may be provided and configured to open the valves of the abovementioned valve unit in the event of a collision so that the at least one inflatable structure is filled with gas from the gas source.
  • the at least one inflatable structure is arranged in embodiments on the outside of a side cheek, a head portion, a backrest or a seat portion of the child seat.
  • the inflatable structure can basically be any structure that can be arranged or formed on the outside of a child seat and that experiences an increase in volume when it is filled with gas.
  • it may be an inflatable structure made of an elastic material.
  • the inflatable structure is formed by an airbag, which unfolds when filled with gas.
  • the airbag is for example made of a fabric, but can be made of other materials such. B. consist of an elastic film.
  • the child seat on the outside of at least one lateral boundary structure has a plurality of folded gas bags.
  • the child seat on the outside of at least one lateral boundary structure has at least one folded airbag having a plurality of chambers or a plurality of areas that unfold in different directions.
  • Figure 1 is a side view of a first embodiment of a child seat, wherein the child seat a first, substantially in lateral
  • Direction extending airbag and a second, substantially in a forward direction extending gas bag has;
  • Figure 2 is a section through the child seat of Figure 1 along the line A-A;
  • FIG. 3 shows a section through the gas bag of FIG. 1 along the line B-B; a second embodiment of a child seat, which has only one gas bag extending substantially in a lateral direction; a third embodiment of a child seat having only one substantially in a direction forward extending gas bag; schematically first embodiment variants for the arrangement of a gas bag in the side cheek area of a child seat; schematically second embodiment variants for the arrangement of a gas bag in the side cheek area of a child seat; a first embodiment of the arrangement of a gas source in a child seat; and a second embodiment of the arrangement of a gas source in a child seat.
  • FIG. 1 shows schematically and in side view a child seat 1, which has a seating area 2, a backrest 3, a head area 7 and two side walls 4.
  • the side cheeks 4 extend - relative to the installed in a motor vehicle state of the child seat 1 - from the right and left sides of the backrest 3 and the head portion 7 forward and may have a wall-like structure. They may each be formed as a continuous structure or formed adjacent to the head portion 7 and the backrest 3 by separate side wall structures. It can further be provided that the side walls 4 extend into the seating area 2 and also provide a lateral support of a child's body in the seating area 2.
  • a child seat such as a belt system, seat and side pads made of foam and optionally a swivel bracket are not shown.
  • the child seat 1 forms an inside, which is formed by inner surfaces 310, 710 of the backrest 3 and the head portion 7 and inner surfaces 420 of the side cheeks 4 (as well as not shown Surfaces of the seating area 2).
  • the inside 310, 710, 420 serves to accommodate a child and surrounds the child sitting in the child seat 1.
  • the inside 310, 710, 420 of the child seat 1 is exposed to the actual or potential contact with the child's body.
  • the child seat 1 further includes an outside.
  • the Au .seite is formed by the back 300, 700 of the backrest 3 and the head portion 7 and the outside 400 and the end face 410 of the side cheeks 4.
  • the seating area 2 also forms an outside.
  • the end face 410 of the side cheek 4 is referred to as the outside of the child seat.
  • the seating area 2, the backrest 3, the head area 7 and the side cheeks 4 form a child seat body 10, which provides the supporting structure of the child seat 1.
  • the child seat body 10 may be formed one or more parts. It may comprise one or more seat shells, which may also be multi-walled, and consists for example of a plastic material.
  • the child seat body 10 is thus formed by those components of the child seat that form the child seat and give stability.
  • the term is to be understood broadly and includes, for example, a possibly existing base (not shown), against which other parts of the child seat body are displaced under a change in the inclination of the backrest.
  • the first airbag 5 is arranged on the outside of the side cheek 4 and is designed such that it unfolds away from the side cheek 4 in a substantially lateral direction.
  • the second airbag 6 is arranged on the outside of the side cheek 4 and configured such that it deploys substantially in a forward direction away from the side cheek 4.
  • the first airbag 5 is subjected to a high pressure in order to ensure rapid support of the child seat 1 on a lateral vehicle structure with high energy input.
  • the forward extending gas bag 6, however, is subjected to a lower pressure because it, adapted to the child, primarily performs a head protection function.
  • the gas bag 6 may be formed such that it additionally provides a thorax protection.
  • FIG. 2 The sectional view of Figure 2 shows only the first airbag 5, since the second airbag 6 in the vertical direction has a smaller extent and in particular only in the head region 7, which provides a head protection, extending in the vertical direction.
  • the first gas bag 5 extends in the vertical direction both in the region of the backrest 3 and in the head region 7, although it may alternatively also be provided that the first gas bag 5 only extends in one of these regions 3, 7.
  • FIG. 3 The sectional view of Figure 3 shows both airbags 5, 6 in the inflated state.
  • the gas bags 5, 6 are filled by means of special switches and / or valves in a defined extent with gas from a gas source, as in FIGS. 7 and 8 executed in an exemplary manner will be.
  • each gas bag 5, 6 is assigned its own gas generator.
  • the two airbags 5, 6 need not necessarily be formed by two separate airbags.
  • the gas bags 5, 6 are formed by different chambers of a single gas bag. To realize a different pressure in such gas bag chambers, for example, be provided that the first chamber is filled with gas and only when a certain internal pressure, a valve for filling the second chamber opens in a wall which separates the two chambers.
  • the two gas bags 5, 6 may be formed by only different areas of a single gas bag.
  • FIG. 4 shows an alternative exemplary embodiment, in which only one airbag 5 is provided in the region of each side cheek 4, which is in the folded state on the outside of the side cheek 4 and unfolds away from the side cheek 4 in the event of a collision in a substantially lateral direction.
  • it is subjected to high pressure in order to ensure rapid support of the child seat with respect to a lateral vehicle structure.
  • an airbag 6 is provided only in the region of each side cheek 4, which airbag unfolds away from the side cheek 4 adjacent to the head region 7 in a substantially forward direction.
  • a gas bag 6 serves primarily to realize a coordinated head protection function for a childish occupant.
  • FIGS. 6A and 6B schematically show exemplary embodiments for arranging a folded airbag package on the child seat.
  • the child seat has recesses 41, 42 in the area of the side cheeks 4, each of which serves to receive a folded airbag package 5, 6.
  • the recesses 41, 42 are formed on the lateral Au side 400 and on the front-side outer side 410 of the side cheeks 4.
  • the folded airbag packages 5, 6 are arranged in airbag housings 51, 52 which are fastened to the lateral outer side 400 and the end-side outer side 410 of the side cheeks 4, for example by means of screwed or riveted connections (not shown).
  • gas bags 5, 6 shown in FIGS. 6A and 6B are to be understood as examples only are.
  • Gas bags can also be arranged in another way and elsewhere on the outside of the child seat.
  • a laterally deploying airbag is formed on the outside of the lateral boundary of the seat region 2 of the child seat, such a gas bag likewise providing rapid support to the vehicle structure in the event of a collision and thereby relative movement of the seat relative to the motor vehicle prevented.
  • FIG. 7 shows a first exemplary embodiment for providing a gas source for inflating the inflatable structures arranged or formed on the outside of the child seat.
  • a child seat 1 (which is shown from the rear in FIG. 7) again has a seating area 2, a backrest 3 and a head area 7. It is followed by two lateral side cheeks 41 to the backrest 3 and two lateral side walls 42 to the head portion 7 at.
  • the head region 7 extends above the back region 3.
  • a gas bag or another inflatable structure is arranged on the outside of the child seat body 10 (not shown separately in FIG. 7).
  • a central gas source in the form of a cold gas generator 8 which has compressed gas stored in a pressure chamber.
  • the cold gas generator 8 comprises a mouthpiece 81 which can be opened by an ignition mechanism, in which case the compressed gas escapes from the pressure vessel.
  • the cold gas generator 8 is arranged in a recess 31, which is formed centrally and symmetrically in the back of the backrest 3.
  • the mouthpiece 81 is coupled to a valve unit 9, which has a plurality of valves 91, which are designed, for example, as non-return valves. Via the valves 91, the valve unit 9 is connected to a plurality of gas lines 13, wherein each gas line 13 terminates at an opening 16, via which an inflatable structure arranged there can be filled with the compressed gas of the gas generator 8.
  • a control device 18 which may comprise a crash sensor. It should be noted that the control device 18 is shown only schematically in FIG. Your actual situation may be different Be a place.
  • the control device 18 may be integrated into the valve unit 9. In any case, it is connected via a connection 14 to the valve unit 9.
  • the control device 18 is provided and designed to detect a collision of a motor vehicle in which the child seat 1 is arranged, and in this case to open the valves 91 of the valve unit 9 such that each of the inflatable structures is filled with gas at the desired pressure becomes. For this purpose, further points and valves can be provided.
  • the child seat includes two ISOfix locking devices 1 1, which allow the child seat 1 easily and safely rigidly connected to the body (according to the standard ISO 13216).
  • the control device 18 comprises a detection unit 181, which detects whether the child seat 1 is currently installed in a motor vehicle.
  • the detection unit 181 detects, for example via a schematically illustrated electrical connection 14, a state of tension or the like of the ISOfix locking devices 11. If the detection unit 181 detects no attachment of the child seat 1 in a vehicle, it is provided that the control device 18 can not trigger the protection system for this case, so the inflatable structures can not be filled with gas. With the ISOfix locking a trigger lock is thus coupled. This can be prevented that the protection system triggers when the child seat 1 falls, for example, on the ground.
  • connection of the child seat 1 via ISOfix latching devices 1 1 to the vehicle body has, for putting on the advantage that a crash pulse of a control device of the vehicle can be quickly transmitted to the control device 18.
  • the control device 18 it is not necessary that the control device 18 can detect a collision itself; rather, it is sufficient that it receives and passes on an externally generated signal.
  • the embodiment of Figure 8 corresponds to the embodiment of the embodiment of Figure 7 that in the embodiment of Figure 8, two gas generators 8 are provided, which are each coupled to a valve unit 9 with valves 91.
  • the two gas generators 8 are formed in two recesses 32, 33 on the back of the backrest 3 of the child seat 1.
  • Each gas generator 8 pressurizes a subset of the inflatable structures formed in the child seat with gas.
  • the invention is not limited in its embodiment to the embodiments shown above, which are to be understood only as examples.
  • the child seat in addition to arranged on the outside of the child seat inflatable structures also has inflatable structures on the inside of the child seat.
  • Such internal inflatable structures can also be filled with gas by a central gas source.
  • the gas source 8 shown in FIGS. 7 and 8 is provided by a pyrotechnic gas generator or by a hybrid gas generator instead of by a cold gas generator. It is also possible that each inflatable structure is assigned its own gas generator. Airbag and gas generator form for this case, a gas bag module, which is arranged at the desired location on the Au .seite the child seat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un siège enfant (1) pour un véhicule automobile, présentant : une face intérieure (310, 710, 420) destinée à recevoir un enfant, une face extérieure (300, 700, 400, 410), au moins une structure gonflable (5, 6) disposée sur la face extérieure (300, 700, 400, 410) du siège enfant (1), ainsi qu'au moins une source de gaz (8, 9) qui fournit du gaz à la structure gonflable (5, 6) en cas de collision impliquant un véhicule automobile dans lequel est placé le siège enfant (1). Selon l'invention, le siège enfant (1) présente sur sa face extérieure (300, 700, 400, 410) au moins une première structure gonflable (5) qui se gonfle sensiblement dans la direction latérale lorsqu'elle se remplit de gaz, ainsi qu'au moins une deuxième structure gonflable (6) qui se gonfle sensiblement dans une direction vers l'avant lorsqu'elle se remplit de gaz.
EP12729021.1A 2011-05-30 2012-05-29 Siège enfant équipé d'un airbag Withdrawn EP2714465A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076702A DE102011076702A1 (de) 2011-05-30 2011-05-30 Kindersitz für ein Kraftfahrzeug
PCT/EP2012/059984 WO2012163889A1 (fr) 2011-05-30 2012-05-29 Siège enfant équipé d'un airbag

Publications (1)

Publication Number Publication Date
EP2714465A1 true EP2714465A1 (fr) 2014-04-09

Family

ID=46331230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12729021.1A Withdrawn EP2714465A1 (fr) 2011-05-30 2012-05-29 Siège enfant équipé d'un airbag

Country Status (6)

Country Link
US (1) US20140084645A1 (fr)
EP (1) EP2714465A1 (fr)
JP (1) JP2014516857A (fr)
CN (1) CN103648839A (fr)
DE (1) DE102011076702A1 (fr)
WO (1) WO2012163889A1 (fr)

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AU2017279736B2 (en) * 2016-12-23 2023-12-14 Britax Childcare Pty Ltd Impact energy absorbing device
CN106740310B (zh) * 2017-01-06 2019-06-28 上海沃雨电子科技有限公司 儿童安全座椅isofix与靠背联动调节的***及方法
CN106976435B (zh) * 2017-03-02 2019-12-31 江苏大学 一种用于侧碰保护的儿童安全座椅侧翼***及其控制方法
FR3066729B1 (fr) * 2017-05-23 2019-07-19 Dorel France Siege auto pour enfant a moyens d'inhibition selective de moyens de protection actifs
DE202017105118U1 (de) * 2017-08-25 2018-11-29 Cybex Gmbh Kindersitz zur Anbringung auf einem Kraftfahrzeugsitz
DE102017223319A1 (de) * 2017-12-20 2019-06-27 Bayerische Motoren Werke Aktiengesellschaft Schalenkindersitz mit Airbagvorrichtung
US20200269807A1 (en) * 2019-02-22 2020-08-27 Ford Global Technologies, Llc Integration of child safety seat with vehicle seatbelt reminder systems
FR3099910B1 (fr) * 2019-08-12 2022-02-04 Helite Système de protection, siège bébé, bicyclette et utilisation mettant en œuvre un tel système de protection
CN111114400A (zh) * 2019-12-12 2020-05-08 刘�英 一种基于儿童座椅的触发式安全装置
DE102021127797A1 (de) * 2021-10-26 2023-04-27 Cybex Gmbh Verfahren zur Auslösung von Schutzmitteln und Kinderrückhalteeinrichtung mit Schutzmittel
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Also Published As

Publication number Publication date
WO2012163889A1 (fr) 2012-12-06
DE102011076702A1 (de) 2012-12-06
CN103648839A (zh) 2014-03-19
US20140084645A1 (en) 2014-03-27
JP2014516857A (ja) 2014-07-17

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