WO2012104431A1 - Structure de déformation absorbant l'énergie - Google Patents

Structure de déformation absorbant l'énergie Download PDF

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Publication number
WO2012104431A1
WO2012104431A1 PCT/EP2012/051901 EP2012051901W WO2012104431A1 WO 2012104431 A1 WO2012104431 A1 WO 2012104431A1 EP 2012051901 W EP2012051901 W EP 2012051901W WO 2012104431 A1 WO2012104431 A1 WO 2012104431A1
Authority
WO
WIPO (PCT)
Prior art keywords
deformation
deformation structure
load distribution
structure according
distribution element
Prior art date
Application number
PCT/EP2012/051901
Other languages
German (de)
English (en)
Inventor
Reiner Nett
Christian Puchert
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 WO2012104431A1 publication Critical patent/WO2012104431A1/fr

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
    • B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
    • 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
    • B60N2/42—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
    • B60N2/4249—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 fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/37—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers of foam-like material, i.e. microcellular material, e.g. sponge rubber

Definitions

  • the invention relates to an energy-absorbing deformation structure according to the preamble of claim 1.
  • the deformation structure finds z.
  • the deformation structure comprises at least one deformation element, which serves to protect the human body and upon application of force of a human body part on the deformation element, for. B. as a result of a collision with another vehicle that decelerates and restrains adjacent human body part.
  • the deformation element comprises z. B. an inner core and a shell.
  • the inner core is designed to be able to decelerate and retain the adjacent body part upon application of force to the deformation structure.
  • the shell formed by a solid surrounds the inner core; In particular, it can be made elastic or flexible.
  • the inner core consists of an elastic material, for.
  • the shell may have a flow device through which the air contained in the elastic core can escape during compression and re-enter when discharged.
  • a design is described in DE 20 2006 010 876 U1. It is also possible that the shell is formed directly by the outer surface (in the form of a solid surface) of the core itself.
  • the inner core includes a fluid, ie, a gaseous or liquid material, which by a fluid-permeable device, for. B. an outlet opening, is fluidly connected to its environment.
  • the fluid-permeable device is integrated in a container which envelops the fluid. With external force the fluid flows from the deformation element. When discharged, the fluid flows in the opposite direction again.
  • a body part is pressed against the adjacent deformation structure, a relative movement of the body part to the deformation structure occurs.
  • the movement of the body part leads to a deformation of the deformation structure.
  • a deformation of the deformation structure takes place with comparatively low deceleration of the body part. If the force of the body part continues to rest on the deformation structure, a (disproportionately increasing) restoring force of the deformation structure acts on the body part with increasing deformation, which leads to a greater deceleration of the body part.
  • the deformation structure In order to limit the load on the body part to be protected, the deformation structure must be chosen to be sufficiently large, since the maximum restoring force acting on the body can be reduced by a longer deformation path. However, since only a very limited space is available in a vehicle, this is not readily feasible.
  • the invention is therefore based on the problem to provide an energy-absorbing deformation structure of the type mentioned, which ensures a compact design that the protected by the deformation structure occupant experiences the lowest possible stresses during an accident.
  • a (active) side of the surface of the deformation element facing the body part of the occupant to be protected is connected to a planar load distribution element which has a greater flexural rigidity than the deformation element.
  • the force acting on the deformation element from the body part via the load distributor element first acts over a large area on the deformation element, since the load distribution element transmits the acting force flatly to the deformation element connected to the load distribution element.
  • the deformation element over the surface over which the deformation element with the Load distribution element in contact contact surface
  • This uniform deformation initially causes a greater increase in the restoring force as a function of the compression than in a deformation structure without a load distribution element.
  • the load distribution element may have a higher tensile stiffness and / or a higher shear stiffness than the deformation element connected to the load distribution element.
  • a higher tensile stiffness and a higher shear stiffness support the functions of the load distribution element to distribute the forces occurring on the load distribution element on the body of the load distribution element on the surface of the deformation element covered by the load distribution element (evenly).
  • the load distribution element can be made of different materials.
  • the requisite greater flexural rigidity is possessed by e.g. metallic materials. Due to their lower weight, plastics with correspondingly high flexural stiffness are also suitable as base material for load distribution elements.
  • the load distribution element can be made in different material thicknesses and geometries, eg. B. as a plate to run. It can be used with a flat surface or with an uneven, z. B. ribbed surface designed. As long as the forces acting on the load distribution element by the body part remain sufficiently small, the bending stiffness of the load distribution element prevents its deformation. The acting forces are passed from the load distribution element in its entirety to the adjacent deformation element and cause over the contact surface between the load distribution element and deformation element uniformly acting deformation of the deformation element.
  • the resistance given by the bending resistance of the load distribution element is overcome against deformation and the load distribution element deforms. Due to the deformation, the load distribution element is no longer connected along its entire surface with the deformation element. Instead, the contact area decreases, whereby the force is reduced to the deformation element.
  • the load distribution element can also be placed between two deformation elements.
  • the possible deformation path which the deformation element, which intentionally faces the body part to be protected and which is closest to it, should be smaller than that deformation path that the body part to be protected continues as intended remote deformation element allows for compression.
  • the load distribution element can be connected in different ways with the at least one deformation element, for. B. by a frictional and / or a positive connection.
  • Deformation structures can be integrated into an occupant protection system by attaching them to a load-bearing (e.g., solid) component of the occupant protection system.
  • a load-bearing e.g., solid
  • the deformation structure In the occupant protection system, in which the deformation structure is integrated, it can be in particular a child protection system, eg. B. in the form of a child seat act.
  • the deformation structure can be integrated into side cheeks of a child protection system.
  • Such a deformation structure protects the child in particular when a third vehicle collides laterally with a vehicle equipped with the child protection system.
  • different body regions such as the head, chest, abdomen and pelvic regions, can be protected by the deformation structure.
  • the deformation structure according to the invention can also be used in other areas, for example as inner padding in helmets or as a back protector for winter sports enthusiasts.
  • the at least one deformation element of the deformation structure consists of a deformable solid; z.
  • a plastic or a foam As a plastic or a foam.
  • the at least one deformation element contains a fluid in its core.
  • the fluid is contained in a container which constitutes a shell of the deformation element.
  • the shell may be provided with outlet openings which allow the fluid to flow out upon compression of the deformation element and to flow back again upon release.
  • the fluid may be a liquid or a (compressible) gas.
  • Figure 1 shows the structure of a child protection system with deformation structure.
  • FIG. 2b shows a conventional deformation structure during the contact phase
  • FIG. 3 shows a first embodiment of a deformation structure Load distribution element
  • FIG. 5a shows a deformation structure according to FIG. 3 before the contact phase
  • FIG. 5b shows a deformation structure according to FIG. 3 during the contact phase
  • FIG. 6 is an illustration of the deformation of a load distribution element by different load entries
  • Figure 7 is a scheme of energy absorption in ideal triangular
  • FIG. 8 shows an acceleration-displacement diagram of a deformation structure without and with a load distribution element
  • 9a shows a deformation structure with a first form of energy input
  • FIG. 9b shows a deformation structure with a second form of energy input
  • Fig.1 1 a combination of two deformation structures
  • deformation structures D1 and D2 were respectively installed in two side areas at two different locations. Both deformation structures serve primarily to protect a child from side impacts. While the one deformation structure D2 largely covers the entire side area and thus the different body regions head, Protects chest, abdomen and pelvic area, the other deformation structure D1 is primarily for the protection of the head.
  • deformation structures may continue to differ due to their structure, material used, material thickness and geometry.
  • FIGS. 2a and 2b show schematically the deformation of a conventionally constructed deformation structure 1 'before and during the action of force by a head impactor K.
  • the arrangement corresponds to the arrangement in a typical impactor test in which a child's head impactor K falls into a deformation structure 1'.
  • the deformation structure 1 ' consists of a deformation element 1 1, which comprises a core 15 and a shell 10.
  • a surface 13 as part of the shell limits the deformation element 1 1 on the side on which the Kopfimpaktor K acts. If the head impactor K strikes the deformation structure 1 ', a locally limited deformation of the deformation structure 1' around the contact point occurs, at which the head impactor K comes into contact with the surface 13 of the deformation element 11. Due to the local deformation, the contact point of the head impactor K widens with the deformation structure 1 'to a contact area 3 larger in area.
  • Fig. 3 shows a possible embodiment of an energy-absorbing deformation structure 1 with load distribution element 14, as z. B. in a child protection system according to FIG. 1 can be used.
  • the deformation structure 1 comprises a deformation element 1 1, which consists of a foam, wherein the foam z. B. has a foam stiffness between 50% and 200% and directly even the outer surface (in the form of a solid surface) or shell of the deformation element 1 1 forms.
  • the one surface 13 of the deformation element 1 1 is a made of metal or plastic load distribution element 14 in the form of a load distribution plate upstream, which covers the surface of the deformation element 1 1 completely or at least partially.
  • the load distribution element 14 is frictionally (and / or positively) connected to the deformation element 1 1.
  • This arrangement is integrated into an occupant protection system in such a way that the deformation structure 1 is adjacent to the body part to be protected when used properly, wherein the body part to be protected upon application of force in Direction of the deformation structure 1 as intended in contact with the load distribution element 14 in front of a surface 13 of the deformation element 1 1 occurs.
  • the load distribution element 14 has a greater flexural rigidity and, in a possible embodiment, a greater expansion and / or shear stiffness than the associated deformation element 11.
  • the modulus of elasticity of the load distribution element 14 is between 1 MPa and 72 GPa, preferably between 1 MPa and 5 GPa.
  • the yield strength is selected from the range 0.1 MPa to 100 MPa, preferably from the range 0.1 MPa to 80 MPa.
  • a second deformation element 12 is frictionally (and / or positively) connected to the load distribution element 14 in such a way that the second deformation element 12, the load distribution element 14 at the the first deformation element 1 1 side facing away, so that the body part that is intended to be protected by the deformation structure 1, (exclusively) comes into contact with the second deformation element 12 in contact.
  • the body part to be protected does not act directly on the load distribution element 14 but on the second deformation element 12.
  • the deformation structure 1 behaves at the beginning comparable to a deformation structure 1 'without load distribution element 14, as by the force initially only the second load distribution element 14 is deformed. If the force increases, the acting force is transmitted to the load distribution element 14 by the second deformation element 12.
  • the second embodiment shows a substantially same behavior as the first embodiment.
  • FIG. 5b shows the same deformation structure 1 during the action of force by a head impactor K.
  • FIGS. 2a and 2b the arrangement shown corresponds to the arrangement.
  • FIG in a typical impactor test in which a child head impactor K falls into a deformation structure 1, in the present case on the surface 13 of the deformation element 11 provided with the load distribution element 14. If the head impactor K strikes the deformation structure 1, then the acting force is absorbed by the load distribution element 14 coming into contact with the head impactor K at the contact point 4 and passed on to the underlying deformation element 11.
  • the load distribution element 14 If the force acting on the load distribution element 14 is below a threshold value which can be predetermined by the material and geometry of the load distribution element 14, the load distribution element 14 is not deformed and the force is transmitted evenly to the deformation element 11 connected to the load distribution element 14.
  • the deformation element 1 1 is uniformly deformed over its entire contact surface with the load distribution element 14. The size of the contact point 4 between the head impactor K and the deformation structure 1 does not change since the head impactor K does not sink into the deformation structure 1.
  • Fig. 6 shows possible deformations of the load distribution element 14 at a force acting on the deformation element 1 1 side facing away for different sized load entries. If the force remains below a threshold, no deformation of the load distribution element 14 takes place. If the acting force exceeds this threshold value, then the load distribution element 14 deforms about the point of contact, via which the force acts on the load distribution element 14 in the direction of the body from which the action of force originates. As the force increases, the deformation increases.
  • the setting of the threshold value is made on the material properties of the load distribution element 14, such as modulus and yield strength, but also on the geometric properties such as notches, holes, predetermined breaking points or joints.
  • the energy absorption behavior of the deformation structure 1 can be illustrated by means of an acceleration-deformation path diagram (a-s diagram).
  • the graph shows the braking acceleration in response to the deformation path traveled by a body part while acting on the deformation structure 1.
  • Fig. 7 such an as diagram is schematically illustrated for two different typical energy absorption behaviors, referred to as triangle and rectangular.
  • the triangle identifier describes approximately the behavior of a conventional deformation structure, as shown in FIG. 2.
  • the upper branch of the triangle identifier running from bottom left to top right, characterizes the loading process of the transformation of kinetic energy into potential energy.
  • the area below the branch corresponds to the energy transferred during the loading process. If the deformation element 1 1 only elastically deformed, ie it does not cause friction or plastic deformation, the entire potential energy in the unloading process, the conversion of potential energy into kinetic energy, is released again.
  • the unloading process would also be characterized by the upper branch of the triangle identifier which would traverse in the reverse direction.
  • maximum energy absorption should take place. At maximum absorption, the stored potential energy is not converted back into kinetic energy. If the body part acting on the deformation structure has traveled its maximum deformation path and has come to a standstill, then the acceleration drops to zero. There is no acceleration on the body part, which forces it back to its original position. This behavior is characterized by the triangle identifier. Since a higher acceleration means a higher load for the individual on whom the acceleration is acting, a behavior as characterized by the rectangular identifier represents a further improvement of an occupant protection system.
  • the rectangular identifier shown in Fig. 7 includes an area of the same size like the area enclosed by the triangle identifier. This means that a behavior of a deformation structure characterized by the rectangular characteristic absorbs in principle the same amount of energy as a behavior characterized by the triangular identification with an identical deformation path, but with in this case half the maximum acceleration. A behavior according to the rectangular identifier thus represents a significant improvement compared to a behavior according to triangular identification.
  • the embodiments of the energy absorbing deformation structure 1 with load distribution element 14 described in FIGS. 3 and 4 essentially show a behavior as characterized by the rectangular identifier.
  • the characteristic L 'of a previously known deformation structure 1' according to FIG. 2 is set in relation to the characteristic L of the deformation structure 1 according to the embodiment described in FIG.
  • the characteristic curve L 'of the previously known deformation structure 1' essentially corresponds to a triangular identification.
  • the characteristic curve L of the embodiment according to FIG. 3 essentially corresponds to a rectangular identification with a maximum acceleration, which is only approximately half as large as that of the previously known deformation structure 1 'and whose maximum deformation path does not deviate significantly from that of the characteristic L'.
  • the load distribution element 14 initially remains undeformed and applies the force uniformly to the deformation element 11 connected to it, and continues to apply the same force to a body part on the deformation structure 1 according to FIG.
  • the uniform force initially causes a stronger braking acceleration than in a previously known deformation structure 1 '.
  • the load distribution element 14 deforms around the point of contact with the force-exerting body part, as shown in FIG.
  • the contact surface between the load distribution element 14 and deformation element 1 1 is reduced and thus the force exerted on the deformation element 1 1. This limits or even reduces the further increase in the acceleration, as shown by the characteristic curve L to FIG. 3.
  • an action of a body part to be protected represented here by a head impactor K, on a deformation structure 1 via its load distribution element 14 on the one hand can take place in that the body part, e.g. accelerated as a result of a vehicle crash (in the arrow direction) relative to the deformation structure 1 and is moved against it, which is an energy input E is connected.
  • an action of a body part to be protected can take place on a deformation structure 1 via its load distribution element 14 in that the deformation structure, e.g. as a result of a vehicle crash (in the direction of arrow) experiences a shock through a body part of a motor vehicle, with which a corresponding energy input E is connected and wherein the deformation structure 1 is accelerated / moved in the direction of the body part to be protected.
  • the body part to be protected represented by a head impactor K
  • a head impactor K is intended not to be arranged in front of the load distribution element 14 but in front of a support element / carrier T, which is, for example, the shell or housing of a child seat, cf. FIG. can act. That is to say, the deformation structure 1 is arranged on the side of the carrier T facing away from the intended body part to be protected.
  • the load distribution element 14 is arranged on the side of the deformation structure 1 which faces away from the body part intended to be protected.
  • An energy input E into the side of the deformation structure 1 facing away from the body part to be protected is introduced uniformly into the deformation element 11 via the load distribution element 14 and absorbed there, so that the carrier T is not pressed against the body part to be protected.
  • a deformation structure 1, 1 ' can be arranged with a load distribution element 14 on both sides of a support T, one of which has a load distribution element 14 (facing away from the support T) facing the body part (head impactor K) to be protected and the other on the side facing away from the intended to be protected body part (also facing away from the carrier T) load distribution element 14, with each of which an energy input E, E 'in an associated deformation element 1 1 can be introduced, according to a combination of FIGS. 9a and 10 explained effects.
  • FIG. 12 shows two deformation structures 1, 1 'connected in series in this way. Both deformation structures 1, 1 'are arranged on the same side of a carrier T.
  • the one deformation structure 1 is arranged next to the body part (head impactor K) to be protected as intended, the load distribution element 14 belonging to the deformation structure 1 facing the body part (head impactor K).

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

Abstract

L'invention concerne une structure de déformation absorbant l'énergie (1) destinée à protéger le corps humain et présentant un élément de déformation (11) conçu pour retenir une partie du corps humain mobile par rapport à l'élément de déformation (11) sous l'effet d'une déformation, ainsi qu'une surface (13) formée par une surface solide de l'élément de déformation (11) sur laquelle la partie du corps agit de manière appropriée lorsque la partie du corps est retenue par l'élément de déformation (11). Selon l'invention, un élément de répartition des charges plat (14) relié à l'élément de déformation (11) est disposé devant la surface (13) de l'élément de déformation (11) sur laquelle agit la partie du corps à protéger. Ledit élément de répartition des charges présente une rigidité à la flexion supérieure à celle de l'élément de déformation (11), afin de répartir sur la surface de l'élément de déformation (13) recouverte par l'élément de répartition des charges (14) les forces appliquées lorsque la partie du corps agit sur l'élément de répartition des charges (14).
PCT/EP2012/051901 2011-02-04 2012-02-03 Structure de déformation absorbant l'énergie WO2012104431A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011003650A DE102011003650A1 (de) 2011-02-04 2011-02-04 Energie absorbierende Deformationsstruktur
DE102011003650.4 2011-02-04

Publications (1)

Publication Number Publication Date
WO2012104431A1 true WO2012104431A1 (fr) 2012-08-09

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Application Number Title Priority Date Filing Date
PCT/EP2012/051901 WO2012104431A1 (fr) 2011-02-04 2012-02-03 Structure de déformation absorbant l'énergie

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DE (1) DE102011003650A1 (fr)
WO (1) WO2012104431A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2993078B1 (fr) 2014-09-05 2017-03-22 HTS Hans Torgersen & Sonn AS Protection contre les chocs latéraux pour sièges de sécurité pour enfant
DE102014220658B4 (de) * 2013-10-14 2020-09-03 Wonderland Nurserygoods Company Limited Kindersitz mit Dämpfungsfunktion

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2013054B1 (en) * 2014-06-24 2016-07-07 Maxi Miliaan Bv A child vehicle seat.
DE202014106183U1 (de) 2014-12-19 2015-02-02 Curt Würstl Vermögensverwaltungs-GmbH & Co. KG Sitz für Kleinkinder und Babys

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US5769489A (en) * 1997-05-09 1998-06-23 Dellanno; Ronald P. Energy absorbing support for vehicular passengers
WO2000021783A1 (fr) * 1998-10-09 2000-04-20 Joalto Design, Inc. Siege de vehicule a materiau structurel deformable absorbant l'energie
EP1167114A1 (fr) * 2000-06-28 2002-01-02 Combi Corporation Siège de sécurité pour enfant
WO2002000465A1 (fr) * 2000-06-27 2002-01-03 Stelzenmueller Wolfgang Siege de securite
US20100026059A1 (en) * 2008-07-30 2010-02-04 Cosco Management, Inc. Energy-dissipation system

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FR2273690A1 (fr) * 1974-06-04 1976-01-02 British Leyland Uk Ltd Moyen pour absorber l'energie, destine a etre place a l'interieur des vehicules pour proteger les passagers en cas de choc
DE3920145A1 (de) * 1989-06-20 1991-01-10 Peg Kinderwagenvertriebs Und S Vorrichtung und verfahren zum schutz einer person, insbesondere eines kleinkindes, in einem kraftfahrzeug
DE202006010876U1 (de) 2006-07-10 2006-09-28 Takata-Petri Ag Vorrichtung zur Energieabsorption
ES1065298Y (es) * 2007-04-23 2007-10-16 Jane Sa Dispositivo de seguridad ante colisiones, aplicable a asientos infantiles
US7744154B2 (en) 2008-07-30 2010-06-29 Cosco Management, Inc. Energy-dissipation system

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Publication number Priority date Publication date Assignee Title
US5769489A (en) * 1997-05-09 1998-06-23 Dellanno; Ronald P. Energy absorbing support for vehicular passengers
WO2000021783A1 (fr) * 1998-10-09 2000-04-20 Joalto Design, Inc. Siege de vehicule a materiau structurel deformable absorbant l'energie
WO2002000465A1 (fr) * 2000-06-27 2002-01-03 Stelzenmueller Wolfgang Siege de securite
EP1167114A1 (fr) * 2000-06-28 2002-01-02 Combi Corporation Siège de sécurité pour enfant
US20100026059A1 (en) * 2008-07-30 2010-02-04 Cosco Management, Inc. Energy-dissipation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014220658B4 (de) * 2013-10-14 2020-09-03 Wonderland Nurserygoods Company Limited Kindersitz mit Dämpfungsfunktion
EP2993078B1 (fr) 2014-09-05 2017-03-22 HTS Hans Torgersen & Sonn AS Protection contre les chocs latéraux pour sièges de sécurité pour enfant

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