EP2334510A1 - Ensemble de fixation de siège d'enfant se fixant sur un composant de véhicule et siège d'enfant correspondant - Google Patents

Ensemble de fixation de siège d'enfant se fixant sur un composant de véhicule et siège d'enfant correspondant

Info

Publication number
EP2334510A1
EP2334510A1 EP09778878A EP09778878A EP2334510A1 EP 2334510 A1 EP2334510 A1 EP 2334510A1 EP 09778878 A EP09778878 A EP 09778878A EP 09778878 A EP09778878 A EP 09778878A EP 2334510 A1 EP2334510 A1 EP 2334510A1
Authority
EP
European Patent Office
Prior art keywords
child seat
receiving unit
fastening arrangement
arrangement according
vehicle
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Withdrawn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
EP09778878A
Other languages
German (de)
English (en)
Inventor
Karl-Holger Kislinger
Andre Schnoeller
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.)
Mercedes Benz Group AG
Original Assignee
Daimler 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 Daimler AG filed Critical Daimler AG
Publication of EP2334510A1 publication Critical patent/EP2334510A1/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Withdrawn legal-status Critical Current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
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • B60N2/2893—Fixation to a transversal anchorage bar, e.g. isofix coupled to the seat sub-frame
    • 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

Definitions

  • the present invention relates to a fastening arrangement of a child seat on a component of a vehicle, with at least one pair of connecting elements with a child seat side connecting element and a vehicle-side connecting element, which are connected to each other in a position of use of the child seat. Furthermore, the invention relates to a child seat for a vehicle, comprising at least one connecting element, which is connectable to a corresponding vehicle-side connecting element.
  • DE 103 51 753 A1 discloses a child seat which can be fastened by means of a fastening arrangement on a vehicle seat in a use position.
  • the fastening arrangement is provided in the form of an ISOFIX fastening in a manner known per se.
  • the fastening arrangement is provided in the form of an ISOFIX fastening in a manner known per se.
  • the means are provided, through which the child seat is movable in a crash case from the use position to a deceleration position.
  • the means may comprise mutually displaceable sliding devices. A covered in a crash movement path of the child seat is to reduce the occurring in the event of a crash deceleration forces.
  • the problem underlying the invention is to increase the ride comfort and safety when using a child seat compared to the prior art.
  • a fastening arrangement according to the invention of a child seat on a component of a vehicle comprises at least one pair of connecting elements with a child seat-side connecting element and a vehicle-side connecting element, which are connected to one another in a use position of the child seat.
  • Connecting element pair is assigned a power receiving unit, which are to be absorbed by acting on the child seat forces.
  • the force-absorbing unit is understood here to mean, in particular, a device which has at least one energy-absorbing element which is capable of deforming when the forces acting on the child seat during travel are deformed, that is to say by which the forces acting on the child seat are absorbed and / or those are absorbed the child seat initiated vibrations are damped.
  • a device which has at least one energy-absorbing element which is capable of deforming when the forces acting on the child seat during travel are deformed, that is to say by which the forces acting on the child seat are absorbed and / or those are absorbed the child seat initiated vibrations are damped.
  • the power receiving unit may be assigned to the child-side connecting element.
  • the force-receiving unit adjoins the child-seat-side connecting element at least indirectly.
  • the arrangement of the power unit on the side of the child seat, the mounting arrangement according to the invention can also be provided in vehicles that already have a vehicle-side connecting element for securing the child seat, such as an ISOFIX connecting element. An already existing in the vehicle connecting element must therefore not be adapted in a complex manner.
  • the power unit comprises a shock absorber.
  • a shock absorber By using a shock absorber, the vibrations transmitted to the child seat from the vehicle can be suppressed or quickly damped.
  • This embodiment offers particular advantages in terms of ride comfort.
  • the shock absorber is provided as a hydraulic shock absorber and preferably has a cylinder filled with a liquid, in which a corresponding piston rod can be pushed with a piston.
  • the shock absorber may be provided as a mechanical shock absorber having a plurality of spring blades.
  • a mechanical shock absorber By using a mechanical shock absorber, a robust, durable and cost-reduced power unit can be created.
  • the force receiving unit may have a spring element, in particular in the form of a helical spring. It can thus be achieved that the child seat after returning a certain path of movement after discharge returns to the original use position.
  • the spring element also makes it possible to intercept the shocks introduced by the vehicle into the child seat. If both a shock absorber and a spring element are provided in the power take-up unit, then both the vibrations of the child seat can be suppressed by the power take-up unit and the shocks introduced into the child seat can be intercepted.
  • the spring element has a predetermined spring characteristic.
  • the spring element may have, for example, a progressive, a linear, a degressive, a substantially constant or a discontinuous dependence of a spring force on a path.
  • a progressive characteristic of the spring force has proven to be particularly advantageous as a function of the spring travel, in which a strike-through or too long a movement path can be prevented at a high load on the child seat.
  • the progressive characteristic also allows a soft and thus comfortable suspension in a normal or low acting on the child seat load.
  • the spring element can be arranged on the shock absorber on the outside and preferably extend over an at least approximately entire length of the shock absorber.
  • the damping properties of the shock absorber be influenced by appropriate design of the spring element. For example, a breakaway force of the piston rod, ie force at which the piston rod sets in motion, be adjusted by appropriate selection of the properties of the spring element.
  • the spring element may alternatively be arranged within a cylinder of the shock absorber filled with liquid. It can be provided that the spring element is supported on an inner space of the cylinder limiting end wall and extending in the interior in the main extension direction of the cylinder only over a certain length range of the cylinder. In such an arrangement of the spring element this is used only after covering a certain path of movement of the child seat. Thus, up to a certain path of movement, only the shock absorber and, after covering this movement path, both the shock absorber and the spring element can be used.
  • the spring element can connect to the shock absorber at least indirectly, in particular directly.
  • the breakaway force of the piston rod of the shock absorber can be matched to the characteristic of the spring element that small acting on the child seat forces are absorbed only by means of the shock absorber.
  • the spring element can be used for large forces or transmitted to the child seat bumps.
  • an optimum adjustment of the power take-up unit can thus be achieved.
  • each pair of connecting elements may be provided, in which case each pair of connecting elements is associated with a power receiving unit.
  • each pair of connecting elements is associated with a power receiving unit.
  • the connecting element pairs may alternatively be assigned a common force-receiving unit.
  • the at least two pairs of connecting elements are rigidly connected to one another by means of a connecting rod, and the force receiving unit can be connected to the connecting rod.
  • the force-receiving unit is associated with a travel restriction device, by means of which a movement path of the child seat covered by a deformation of the force-receiving unit during its force absorption is to be limited.
  • This embodiment is based on the fact that the child seat is allowed to travel only a certain way according to the regulations. By using the path limiting device so the movement of the child seat is limited only to a specified in the rules route.
  • This travel restriction device may, for example, have a stop which limits the deformation of the force-receiving unit when it receives power.
  • An inventive child seat for a vehicle comprises at least one connecting element, which is connectable to a corresponding vehicle-side connecting element.
  • a force receiving unit is provided which is connected at least indirectly with the connecting element.
  • FIG. 1 is a schematic side view of a child seat after a
  • Embodiment of the invention comprising two connecting elements and in each case a coupled thereto power unit;
  • Fig. 2 is a schematic representation of a plan view of a child seat side
  • Fastening device including two connecting elements, each associated with a power receiving unit;
  • Fig. 3 is a schematic representation of a plan view of a child seat side
  • Fastening device including two connecting elements, which is associated with a common power receiving unit; 4 is a schematic representation of the power take-up unit according to a first embodiment;
  • FIG. 5 is a schematic representation of the power receiving unit according to a second embodiment
  • FIG. 6 is a schematic representation of the power take-up unit according to a third embodiment
  • FIG. 8 is a schematic representation of the power take-up unit according to a fourth embodiment
  • FIG. 9 is a schematic representation of the power take-up unit according to a fifth embodiment.
  • FIG. 10 is a schematic representation of the power take-up unit according to a sixth embodiment.
  • a child seat 1 shown in FIG. 1 is associated with a fastening device 2, which is designed for fastening the child seat 1 on a vehicle seat, such as on a seat of a passenger car.
  • the fastening device 2 has two spaced-apart connecting elements 3, 4, which are formed in the example as ISOFIX connecting elements.
  • the connecting elements 3, 4 are thus connected to a respective body-mounted headband of the vehicle.
  • the fastening device 2 has two power receiving units 5.
  • the respective force receiving unit 5 connects directly to the associated connecting element 3, 4.
  • FIG. 2 is a plan view of the fastening device 2 of FIG. 1 in a schematic representation again.
  • each of the connecting elements 3, 4 is assigned a force-receiving unit 5 for receiving the forces acting on the child seat 1.
  • the respective power receiving units 5 and the connecting elements 3, 4 are rigidly connected to each other by means of a connecting rod 6, which is coupled to a lower frame of the child seat 1.
  • first and the second connecting element 3, 4 is associated with a common power receiving unit 5. This is illustrated by a plan view of the fastening device 2 in Fig. 3. Shown are the first and the second connecting element 3, 4, which are directly connected to the connecting rod 6. In this case, in contrast to the example of FIG. 2, the mounting rod 6 is coupled via the power receiving unit 5 to the undercarriage of the child seat 1.
  • the force-receiving unit 5 is designed to receive the transmitted to the child seat 1 acceleration or deceleration forces and to dampen vibrations of the child seat 1.
  • FIGS. 4 to 6 and FIGS. 8 to 10 each show an example of the force-receiving unit 5.
  • the force-receiving unit 5 has a shock absorber 7, which comprises a cylinder 8 filled with oil.
  • the cylinder 8 has an inner space 9, in which a piston rod 10 with a arranged at the end of the piston 11 can be moved.
  • the piston 11 has a plurality of passage openings, via which the oil flows during displacement of the piston rod 10 along a main extension direction of the cylinder 8. The resistance generated by this flow creates pressure differences that result in the generation of damping forces.
  • the shock absorber 7 are attenuated transmitted from the side of the vehicle to the child seat 1 vibrations, which increases the ride comfort while driving.
  • FIG. 5 A second embodiment of the power unit 5 is shown in FIG. 5.
  • the power receiving unit 5 has forth next to the shock absorber 7 also has a spring element 12.
  • the spring element 12 is here designed in the form of a helical spring and arranged on the shock absorber 7 on the outside.
  • the spring element 12 on the one hand on a flange 13 which is formed on a piston 11 opposite the end of the piston rod 10, and on the other hand on a flange 14 which is formed on a flange 13 distal end of the cylinder 8, supported.
  • FIG. 7 shows a plurality of dependencies of a spring force F as a function of a spring travel S, which travels the spring element 12 after exerting the spring force F.
  • FIG. 7 shows a constant characteristic 15, a progressive characteristic 16, a linear characteristic 17, a degressive characteristic 18 and a discontinuous characteristic 19.
  • the spring element 12 has the progressive dependence (characteristic curve 16) of the spring force F on the spring travel S.
  • Fig. 6 shows the power receiving unit 5 according to another embodiment.
  • the power unit 5 also has the shock absorber 7 and a spring element 12.
  • the spring element 12 is now arranged inside the cylinder 8, that is to say in the interior 9 of the cylinder 8.
  • the spring element 12 is supported on an end wall 20 of the cylinder, through which the piston rod 10 is guided.
  • the spring element 12 further extends along the piston rod 10 of the end wall 20 over only a certain length range of the cylinder 8, for example over one third of the entire length of the cylinder 8.
  • the force-receiving unit 5 which, in addition to or as an alternative to the shock absorber 7 and / or the spring element 12 described above, has a deformation element 30, for example a sheet metal tab or the like, with a deformation section 32 within which deforms the deformation element in a shift of the child seat in the event of a crash, so as to possibly even at first to allow a shift of the child seat and to reduce the forces acting on the child sitting in the child seat deceleration forces.
  • the deformation portion 32 may have corresponding weakenings in the form of, for example, notches, beads, recesses or the like, as can be seen in Fig.
  • the deformation element 30 is shown in already deformed state.
  • the deformation is due to the material at least largely irreversible, that is, the deformation element is plastically deformed.
  • Fig. 9 shows a schematic representation of a section of another embodiment of the power receiving unit 5, which analogously to the embodiment of FIG. 8 additionally or alternatively to the shock absorber 7 and / or the spring element 12, a deformation element 30, for example a sheet metal tab or the like, having is provided with a rubber element 34.
  • a deformation element 30 for example a sheet metal tab or the like, having is provided with a rubber element 34.
  • This is designed so that it is yielding both under tensile and compressive load and at least at lower forces, such as those that occur, for example, by vibrations during driving, only elastically deformed and regresses in discharge to its original shape.
  • FIG. 10 shows a schematic illustration of a section of a further exemplary embodiment of the force-receiving unit 5, which essentially differs from the force-receiving unit described with reference to FIG. 8 in that the deformation element 30 consists of a flowable material. This flows when exceeding a certain limit tensile force and thus allows one Movement path of the child seat to reduce the deceleration forces.
  • the deformation portion 32 of the deformation element 30 can spontaneously arise at any point or else be defined defined by appropriate measures, for example by a taper of the deformation element in a certain length range.
  • the deformation is materially at least largely irreversible, that is, the deformation element is plastically deformed.
  • the force-receiving unit 5 can also be assigned a travel-limiting device, which is provided, for example, in the form of a stop.
  • This path limiting device has the task of limiting the distance traveled by the child seat 1 in the power by means of the power unit 5 movement paths. This is due to the fact that in the regulations only certain ways are allowed, which the child seat 1 may cover relative to the vehicle seat.
  • the travel restriction may, for example, be such that the piston rod 10 can only be pulled out of the cylinder 8 up to a predetermined point until it reaches the stop.

Landscapes

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

Abstract

L'invention concerne un ensemble de fixation d'un siège d'enfant (1) se fixant sur un composant de véhicule. Cet ensemble de fixation comprend au moins une paire d'éléments de liaison présentant un élément de liaison (3, 4) situé côté siège d'enfant et un élément de liaison situé côté véhicule, ces éléments étant reliés l'un à l'autre dans une position d'utilisation du siège d'enfant (1). Une unité d'absorption de force (5) est associée à ladite au moins une paire d'éléments de liaison pour absorber les forces s'exerçant sur le siège d'enfant (1). L'invention concerne également un siège d'enfant (1) pour véhicule.
EP09778878A 2008-10-15 2009-10-09 Ensemble de fixation de siège d'enfant se fixant sur un composant de véhicule et siège d'enfant correspondant Withdrawn EP2334510A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810051693 DE102008051693A1 (de) 2008-10-15 2008-10-15 Befestigungsanordnung eines Kindersitzes an einem Bauteil eines Fahrzeugs und Kindersitz
PCT/EP2009/007262 WO2010043347A1 (fr) 2008-10-15 2009-10-09 Ensemble de fixation de siège d'enfant se fixant sur un composant de véhicule et siège d'enfant correspondant

Publications (1)

Publication Number Publication Date
EP2334510A1 true EP2334510A1 (fr) 2011-06-22

Family

ID=41786490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09778878A Withdrawn EP2334510A1 (fr) 2008-10-15 2009-10-09 Ensemble de fixation de siège d'enfant se fixant sur un composant de véhicule et siège d'enfant correspondant

Country Status (3)

Country Link
EP (1) EP2334510A1 (fr)
DE (1) DE102008051693A1 (fr)
WO (1) WO2010043347A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9211820B2 (en) 2012-11-01 2015-12-15 Graco Children's Products Inc. Child safety seat with side impact energy redirection

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103112376B (zh) * 2011-10-24 2015-09-09 明门香港股份有限公司 座椅基座设备、儿童安全座椅系统及其锚定装置
CN115123032B (zh) 2021-03-26 2024-11-22 明门(中国)幼童用品有限公司 儿童安全座椅
CN115606965A (zh) 2021-07-15 2023-01-17 明门瑞士股份有限公司 儿童安全座椅及其伸缩结构
US12012020B2 (en) 2022-07-14 2024-06-18 Ford Global Technologies, Llc Child seat anchor including energy absorber

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Publication number Priority date Publication date Assignee Title
DE3817672A1 (de) * 1987-08-01 1989-12-07 Richard Ambros Sicherheitskraftfahrzeug
DE3930137A1 (de) * 1989-09-09 1991-03-21 Bayer Ag Stossdaempfer in form eines schockabsorbers
DE19604094A1 (de) * 1996-01-25 1997-07-31 Kurt Dipl Ing Stroeer Anordnung zur Aufhängung und zur Befestigung eines Kindersitzes in einem Fahrzeug
US5685603A (en) * 1996-03-05 1997-11-11 Trw Vehicle Safety Systems Inc. Apparatus with a child seat and an energy absorption mechanism
DE19800072A1 (de) * 1998-01-02 1999-07-08 Volkswagen Ag Rückhaltesystem für einen in einem Kraftfahrzeug mitgeführten Kindersitz
DE19952771A1 (de) * 1998-11-05 2001-05-10 Orth Michael Aktiver Sicherheits-Autokindersitz
DE10047790A1 (de) * 2000-09-18 2002-03-28 Franz Altenhofer Gesicherter Kindersitz für Kraftfahrzeuge
JP2002178811A (ja) * 2000-12-14 2002-06-26 Takata Corp 子供用座席装置
DE10351753A1 (de) 2003-11-06 2005-06-09 Daimlerchrysler Ag Kindersitz

Non-Patent Citations (1)

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Title
See references of WO2010043347A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9211820B2 (en) 2012-11-01 2015-12-15 Graco Children's Products Inc. Child safety seat with side impact energy redirection

Also Published As

Publication number Publication date
DE102008051693A1 (de) 2010-04-22
WO2010043347A1 (fr) 2010-04-22

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