DE4023641A1 - Seat for small child in vehicle - makes use of seat belt spring matched to child's body weight - Google Patents

Seat for small child in vehicle - makes use of seat belt spring matched to child's body weight

Info

Publication number
DE4023641A1
DE4023641A1 DE19904023641 DE4023641A DE4023641A1 DE 4023641 A1 DE4023641 A1 DE 4023641A1 DE 19904023641 DE19904023641 DE 19904023641 DE 4023641 A DE4023641 A DE 4023641A DE 4023641 A1 DE4023641 A1 DE 4023641A1
Authority
DE
Germany
Prior art keywords
child
seat
backrest
child seat
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.)
Ceased
Application number
DE19904023641
Other languages
German (de)
Inventor
Christoph Dr Med Salat
Hans-Heinrich Dipl Ing Wey
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.)
WEY HANS HEINRICH DIPL ING
Original Assignee
WEY HANS HEINRICH DIPL ING
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 WEY HANS HEINRICH DIPL ING filed Critical WEY HANS HEINRICH DIPL ING
Priority to DE19904023641 priority Critical patent/DE4023641A1/en
Publication of DE4023641A1 publication Critical patent/DE4023641A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2803Adaptations for seat belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2857Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child
    • B60N2/286Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child forward facing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/10Safety belts or body harnesses in vehicles specially adapted for children or animals
    • B60R22/105Safety belts or body harnesses in vehicles specially adapted for children or animals for children
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/28Safety belts or body harnesses in vehicles incorporating energy-absorbing devices

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)

Abstract

The child's seat is for a vehicle. It has belts fastened to the backrest of the seat which extend over the child's shoulders to act as restraint. A spring matched to the body weight of the child is positioned between the upper ends (21) of the shoulder belt (19) and the anchor points on the frame (12) or on the backrest (14). USE/ADVANTAGE - Seat, esp. for a small child, in which in the event of an accident, damage to the head and upper spinal column is minimised.

Description

Die Erfindung betrifft einen Kindersitz für Kraftfahrzeuge mit Sicherheitsgurten zum Zurückhalten des Körpers bei Auffahr- od. dgl. Unfällen, um schwere Körperverletzungen zu vermeiden.The invention relates to a child seat for motor vehicles with seat belts to restrain the body Collision or the like. Accidents to serious injuries avoid.

Bei den bekannten Kindersitzen sind die Schultergurte des Rückhaltesystems starr mit der Rückenlehne verbunden. Im Falle eines Unfalls wird die kinetische Energie des Ober­ körpers des Kindes durch die Schultergurte abgefangen. Eine umfangreiche Untersuchung in jüngster Zeit (Test, 1990, H. 4, S. 35 ff) kam zu dem Ergebnis, daß der Kopf und die Halswirbelsäule der Kinder am stärksten gefährdet sind und daß die Kinder die Belastungen bei einem Unfall viel weniger zu ertragen in der Lage sind als Erwachsene.In the known child seats, the shoulder straps are the Restraint system rigidly connected to the backrest. in the In the event of an accident, the kinetic energy of the waiter child's body is caught by the shoulder straps. A extensive recent investigation (Test, 1990, H. 4, p. 35 ff) came to the conclusion that the head and the Children's cervical spine are most at risk and that the child's loads in an accident are much less are able to endure as adults.

Nach Berichten über Unfälle von Kleinkindern sollen Genick­ brüche und Querschnittslähmungen vorgekommen sein, wenn sie in Kindersitzen mit Hosenträgergurten untergebracht waren. Solche Unfallfolgen werden darauf zurückgeführt, daß der Oberkörper des Kindes zu fest umschnürt ist bzw. an der Rückenlehne des Sitzes festgehalten wird, und der im Ver­ hältnis zum übrigen Körper noch sehr schwere Kopf bei einem Aufprall des Fahrzeugs zu plötzlich nach vorn schnellt, der Oberkörper sich jedoch nicht im gleichen Maße mitbewegt. Weiterhin kommt hinzu, daß der Kopf und Oberkörper im An­ schluß an die Vorwärtsbewegung eine Rückwärtsbewegung aus­ führen, durch die ebenfalls Schäden verursacht werden können.According to reports of accidents involving young children, neck should be fractures and paraplegia have occurred if they were placed in child seats with harness belts. Such consequences of the accident are attributed to the fact that the The child's torso is tied too tightly or on the Backrest of the seat is held, and the Ver relationship to the rest of the body still very heavy head in one Impact of the vehicle suddenly jumps forward However, the upper body does not move to the same extent. In addition, the head and upper body in the An exclude a backward movement from the forward movement cause damage can.

Der Erfindung liegt die Aufgabe zugrunde, Kindersitze, ins­ besondere Kleinkindersitze der in Betracht kommenden Art so zu verbessern, daß das Verletzungsrisiko in bezug auf den Oberkörper und insbesondere die Halswirbelsäule und den Kopf des Kindes auf ein Mindestmaß gesenkt wird.The invention has for its object child seats ins special toddler seats of the type under consideration to improve the risk of injury in relation to the Upper body and especially the cervical spine and head of the child is reduced to a minimum.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorge­ schlagen, den mit die Schultern des Kindes übergreifenden Hosenträgergurten ausgestatteten Kindersitz in der Weise auszubilden, daß zwischen den oberen Enden der Gurte und deren Befestigungspunkten an der Rückenlehne wenigstens ein Federkraftspeicher angeordnet ist. Dieser ist vorzugsweise einstellbar ausgebildet, um seine Dämpfungswirkung dem Gewicht bzw. der Masse des Oberkörpers des Kindes in ein­ facher Weise anpassen zu können.To solve this problem, according to the invention beat that overlapping the child's shoulders Child seat belts equipped in the manner train that between the top ends of the straps and whose attachment points on the backrest at least one Spring energy store is arranged. This is preferred adjustable to its damping effect Weight or mass of the child's upper body in one to be able to adjust

Durch diese erfindungsgemäß vorgeschlagene Maßnahme wird erreicht, daß im Falle eines Auffahr- od. dgl. Unfalls der Oberkörper des Kindes dem Vorschnellen des relativ schweren Kopfes folgen kann und dessen Vorwärtsbewegung progressiv verzögert wird, so daß das plötzliche Abknicken der Hals­ wirbelsäule weitestgehend gemildert wird und die daraus resultierenden Schäden auf ein Mindestmaß reduziert werden.Through this measure proposed according to the invention achieved that in the event of a drive-up or the like Upper body of the child rushing to the relatively heavy Head can follow and its forward movement progressively is delayed, causing the sudden kinking of the neck spine is largely mitigated and the resulting resulting damage can be reduced to a minimum.

Eine weitere Verbesserung eines derart ausgebildeten Kinder­ sitzes ist dadurch erreichbar, daß man zwischen dem Rücken des Kindes und der Rückenlehne des Sitzes ein im Querschnitt keilförmiges Stützpolster anordnet, welches auf- und abwärts bewegbar ist, und das bei sich nach vorn bewegendem Ober­ körper den keilförmigen Raum zwischen dem Rücken und dem Kopf und der Rückenlehne des Sitzes ausfüllen soll, um so ein plötzliches Zurückschleudern vor allem des Kopfes zu verhindern.Another improvement of such a trained child The seat can be reached by moving between the back of the child and the back of the seat a in cross section arranges wedge-shaped support pad, which is up and down is movable, and this with the upper moving forward body the wedge-shaped space between the back and the Head and backrest of the seat should fill, so a sudden fling back, especially of the head prevent.

Weitere Merkmale des erfindungsgemäß ausgebildeten Kinder­ sitzes gehen aus den Unteransprüchen wie auch aus der nach­ folgenden Beschreibung eines in der Zeichnung schematisch dargestellten Ausführungsbeispiels hervor.Further features of the children trained according to the invention fit from the subclaims as well as from the following description of a schematic in the drawing illustrated embodiment.

Die Fig. 1 und 2 der Zeichnung zeigen je eine Seiten­ ansicht eines Kindersitzes gemäß der Erfindung in seiner prinzipiellen Konzeption, wobei in Fig. 1 das Kind in normaler Haltung und in Fig. 2 in seiner Haltung nach einem Unfall dargestellt ist. Figs. 1 and 2 of the drawing each show a side view of a child seat according to the invention in its basic design, in Fig. 1, the child is shown in a normal position and in Fig. 2 in its position after an accident.

Der Kindersitz 11 besteht üblicherweise aus einem Grund­ gestell 12 mit einem Sitz 13 und einer Rückenlehne 14, an welchen ein Sitzpolster 15, ein Lehnenpolster 16 und Seiten­ lehnen 17 befestigt sind.The child seat 11 usually consists of a base frame 12 with a seat 13 and a backrest 14 , to which a seat cushion 15 , a backrest cushion 16 and sides 17 are attached.

Das Rückhaltesystem für das auf dem Kindersitz 11 sitzende Kind besteht z. B. aus einem Beckengurt 18 und einem Hosen­ trägergurt 19, dessen beide oberen Abschnitte 20 die Schultern des Kindes übergreifen und dessen obere Enden 21 durch Schlitze 22 od. dgl. in der Rückenlehne 14 wie auch im Lehnenpolster 16 hindurchgeführt und nach unten umgelenkt und mit wenigstens einer Feder 23 oder einem aus mehreren Federn bestehenden Federsystem verbunden sind. Die Federn 23 sind ihrerseits an dem Grundgestell 12 oder an der Rücken­ lehne 14 befestigt.The restraint system for the child sitting on the child seat 11 consists, for. B. from a lap belt 18 and a trouser strap 19 , the two upper sections 20 overlap the shoulders of the child and the upper ends 21 through slots 22 or the like. In the backrest 14 as well as in the backrest pad 16 and deflected downwards and with at least one spring 23 or a spring system consisting of several springs are connected. The springs 23 are in turn attached to the base frame 12 or backrest 14 .

Im Falle eines Auffahr- od. dgl. Unfalls kippt der Oberkörper des Kindes, wie Fig. 2 erkennen läßt, nach vorn, wobei dessen Bewegung durch die aus den Schlitzen 22 in der Rückenlehne 14 gegen die Rückstellkraft der Federn 23 her­ ausgezogenen Gurtenden 21 progressiv abgebremst wird. In the event of a collision or the like. The upper body of the child tilts forward, as can be seen in FIG. 2, its movement progressively due to the belt ends 21 being pulled out of the slots 22 in the backrest 14 against the restoring force of the springs 23 is braked.

Die Federn 23 oder das an deren Stelle vorgesehene Feder­ system sollten hinsichtlich ihrer Federeigenschaften ein­ stell- oder verstellbar oder auch auswechselbar sein, damit sie eine solche Federkennlinie haben, die in bezug auf das Körpergewicht des Kindes, insbesondere die Masse des Ober­ körpers und des Kopfes einen optimalen Verlauf hat, um eine gewünschte Bewegungsdämpfung zu erreichen. Zwar wird der Kopf seiner großen Masse wegen ebenso wie bisher nach vorn geschnellt werden, jedoch ist das Abknicken der Halswirbel­ säule durch den ebenfalls, hierbei aber abgebremst nach vorn geschnellten Oberkörper gemildert.The springs 23 or the spring system provided in their place should be adjustable or adjustable or also interchangeable with regard to their spring properties, so that they have such a spring characteristic which is related to the body weight of the child, in particular the mass of the upper body and the head has an optimal course in order to achieve a desired movement damping. Because of its large mass, the head will be flipped forward as before, but the kinking of the cervical vertebrae is alleviated by the upper body, which also flies forward but is slowed down.

Um das Rückschnellen des Kopfes und des Oberkörpers des Kindes abzufangen, ist am oberen Ende der Rückenlehne 14 ein keilförmiges Stützpolster 24 angeordnet, das vertikal beweg­ lich ist und das dann zwischen den Kopf und den Oberkörper des Kindes und das Lehnenpolster 16 gezogen wird, wenn das Kind unfallbedingt nach vorn kippt. Hierzu dient eine Zug­ vorrichtung 25, die jeweils dann wirksam wird, wenn ein Unfall passiert ist. Die Zugvorrichtung 25 besteht bei­ spielsweise aus Bändern und an diesen angreifenden Federn und steht unter einer Vorspannung. Die Zugvorrichtung 25 bzw. das von dieser herabzuziehende keilförmige Stützpolster 24 wird beispielsweise dann ausgelöst und herabgezogen, wenn eine entsprechende Sperre von den nach vorn gezogenen Schultergurten aufgehoben worden ist.In order to intercept the snapback of the child's head and upper body, a wedge-shaped support cushion 24 is arranged at the upper end of the backrest 14 , which is vertically movable and which is then pulled between the child's head and upper body and the backrest cushion 16 when that Child tilts forward due to accident. For this purpose, a train device 25 is used , which is effective when an accident has occurred. The pulling device 25 consists, for example, of ribbons and springs acting on them and is under a prestress. The pulling device 25 or the wedge-shaped support pad 24 to be pulled down by it is triggered and pulled down, for example, when a corresponding lock has been lifted by the shoulder straps pulled forward.

Claims (7)

1. Kindersitz für Kraftfahrzeuge mit die Schultern des Kindes übergreifenden, an der Rückenlehne des Sitzes befestigten Schulter- bzw. Hosenträgergurten zum Zurückhalten des Körpers des Kindes bei Auffahr- od. dgl. Unfällen, dadurch gekennzeichnet, daß zwischen den oberen Enden (21) der Schultergurte (19) und deren Befestigungs­ punkten am Sitzgestell (12) oder an der Rückenlehne (14) wenigstens ein Federkraftspeicher (23) angeordnet ist.1. Child seat for motor vehicles with the child's shoulders overlapping, attached to the back of the seat shoulder or harness belts for restraining the child's body in rear-end or the like. Accidents, characterized in that between the upper ends ( 21 ) of the Shoulder straps ( 19 ) and their fastening points on the seat frame ( 12 ) or on the backrest ( 14 ) at least one spring force accumulator ( 23 ) is arranged. 2. Kindersitz nach Anspruch 1, dadurch gekennzeichnet, daß der Federkraftspeicher (23) einstellbar ist.2. Child seat according to claim 1, characterized in that the spring force accumulator ( 23 ) is adjustable. 3. Kindersitz nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß die Federkraftspeicher (23) aus einer oder mehreren, vorzugsweise auswechselbaren Federn bestehen.3. Child seat according to claim 1 or 2, characterized in that the spring force accumulator ( 23 ) consist of one or more, preferably interchangeable springs. 4. Kindersitz nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zwischen dem Rücken des Kindes und dem Lehnenpolster (16) der Rückenlehne (14) des Sitz­ gestells (12) ein auf- und abwärts bewegbares, keil­ förmiges Stützpolster (24) angeordnet ist.4. Child seat according to one of claims 1 to 3, characterized in that between the back of the child and the backrest cushion ( 16 ) of the backrest ( 14 ) of the seat frame ( 12 ) an up and down movable, wedge-shaped support pad ( 24 ) is arranged. 5. Kindersitz nach Anspruch 4, gekennzeichnet durch eine an dem Stützpolster (24) angreifende und dieses nach unten ziehende Zugvorrichtung.5. Child seat according to claim 4, characterized by a on the support pad ( 24 ) engaging and pulling this pulling device. 6. Kindersitz nach Anspruch 5, dadurch gekennzeichnet, daß die Zugvorrichtung aus Bändern und wenigstens einer Zug­ feder besteht. 6. Child seat according to claim 5, characterized in that the pulling device from strips and at least one pull feather exists.   7. Kindersitz nach Anspruch 6, dadurch gekennzeichnet, daß das in seiner Normallage unter Vorspannung stehende, keilförmige Stützpolster (24) mittels einer Sperrvor­ richtung arretierbar ist, die durch die im Falle eines Unfalls nach vorn gezogenen Enden (20, 21) der Schulter­ gurte (19) auslösbar ist.7. Child seat according to claim 6, characterized in that the wedge-shaped support pad ( 24 ), which is under tension in its normal position, can be locked by means of a ratchet device which, in the event of an accident, pulls the ends ( 20 , 21 ) of the shoulder straps ( 19 ) can be triggered.
DE19904023641 1990-07-25 1990-07-25 Seat for small child in vehicle - makes use of seat belt spring matched to child's body weight Ceased DE4023641A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904023641 DE4023641A1 (en) 1990-07-25 1990-07-25 Seat for small child in vehicle - makes use of seat belt spring matched to child's body weight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904023641 DE4023641A1 (en) 1990-07-25 1990-07-25 Seat for small child in vehicle - makes use of seat belt spring matched to child's body weight

Publications (1)

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DE4023641A1 true DE4023641A1 (en) 1992-01-30

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DE19904023641 Ceased DE4023641A1 (en) 1990-07-25 1990-07-25 Seat for small child in vehicle - makes use of seat belt spring matched to child's body weight

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610917A1 (en) * 1996-03-20 1997-09-25 Opel Adam Ag Child security seat for motor vehicle
DE10253269A1 (en) * 2002-11-15 2004-05-27 Volkswagen Ag Seat belt system for childrens safety seat, comprising vertically moving holding element located at rear of seat
DE102005039711A1 (en) * 2005-08-23 2007-03-01 Curt Würstl Vermögensverwaltungs-Gmbh & Co. Kg Child seat for motor vehicle, has belt adjuster and/or one of clamping devices or fastening device movably supported at backrest part in longitudinal direction of belt or belt sections and against force of piston and cylinder
DE202016102641U1 (en) 2016-05-18 2016-06-06 Curt Würstl Vermögensverwaltungs-GmbH & Co. KG Device for belt tightening and shock absorption and child seat with such a device
CN105946647A (en) * 2016-06-18 2016-09-21 金余和 Lifting basket type safety seat with tension spring
WO2017109137A1 (en) * 2015-12-23 2017-06-29 Cybex Gmbh Child seat for attaching to a motor vehicle seat
WO2020030723A1 (en) * 2018-08-09 2020-02-13 Volkswagen Aktiengesellschaft Belt guide of a child's seat by means of an elastic band formed as a storage bag on a headrest of a vehicle seat
JP2021024476A (en) * 2019-08-07 2021-02-22 コンビ株式会社 child seat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101292A5 (en) * 1970-08-11 1972-03-31 Peugeot & Renault
DE2606234A1 (en) * 1976-02-13 1977-08-25 Erich Wegner CHILDREN CAR SEAT
FR2364790A1 (en) * 1976-09-16 1978-04-14 Stelniceanu Jacques Car safety harness for children - consists of spring restrained belts attached to metal frame to hold child seated

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101292A5 (en) * 1970-08-11 1972-03-31 Peugeot & Renault
DE2606234A1 (en) * 1976-02-13 1977-08-25 Erich Wegner CHILDREN CAR SEAT
FR2364790A1 (en) * 1976-09-16 1978-04-14 Stelniceanu Jacques Car safety harness for children - consists of spring restrained belts attached to metal frame to hold child seated

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610917C2 (en) * 1996-03-20 2001-05-03 Opel Adam Ag Child safety seat for motor vehicles
DE19610917A1 (en) * 1996-03-20 1997-09-25 Opel Adam Ag Child security seat for motor vehicle
DE10253269A1 (en) * 2002-11-15 2004-05-27 Volkswagen Ag Seat belt system for childrens safety seat, comprising vertically moving holding element located at rear of seat
DE10253269B4 (en) * 2002-11-15 2013-09-12 Volkswagen Ag Child seat for a vehicle with a safety belt system
DE102005039711A1 (en) * 2005-08-23 2007-03-01 Curt Würstl Vermögensverwaltungs-Gmbh & Co. Kg Child seat for motor vehicle, has belt adjuster and/or one of clamping devices or fastening device movably supported at backrest part in longitudinal direction of belt or belt sections and against force of piston and cylinder
DE102005039711B4 (en) * 2005-08-23 2008-03-27 Curt Würstl Vermögensverwaltungs-Gmbh & Co. Kg Child seat for motor vehicles with belt force limiter
WO2017109137A1 (en) * 2015-12-23 2017-06-29 Cybex Gmbh Child seat for attaching to a motor vehicle seat
US10625636B2 (en) 2015-12-23 2020-04-21 Cybex Gmbh Child seat for attaching to a motor vehicle seat
DE202016102641U1 (en) 2016-05-18 2016-06-06 Curt Würstl Vermögensverwaltungs-GmbH & Co. KG Device for belt tightening and shock absorption and child seat with such a device
WO2017198676A1 (en) * 2016-05-18 2017-11-23 Curt Würstl Vermögensverwaltungs-Gmbh & Co. Kg Belt tightening and shock absorbing device, and child seat comprising a device of said type
CN105946647A (en) * 2016-06-18 2016-09-21 金余和 Lifting basket type safety seat with tension spring
WO2020030723A1 (en) * 2018-08-09 2020-02-13 Volkswagen Aktiengesellschaft Belt guide of a child's seat by means of an elastic band formed as a storage bag on a headrest of a vehicle seat
JP2021024476A (en) * 2019-08-07 2021-02-22 コンビ株式会社 child seat
JP7066192B2 (en) 2019-08-07 2022-05-13 コンビ株式会社 child seat

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