WO2009120023A2 - Absorbeur d'énergie pour automobile - Google Patents

Absorbeur d'énergie pour automobile Download PDF

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Publication number
WO2009120023A2
WO2009120023A2 PCT/KR2009/001541 KR2009001541W WO2009120023A2 WO 2009120023 A2 WO2009120023 A2 WO 2009120023A2 KR 2009001541 W KR2009001541 W KR 2009001541W WO 2009120023 A2 WO2009120023 A2 WO 2009120023A2
Authority
WO
WIPO (PCT)
Prior art keywords
energy absorber
unit blocks
absorber
present
unit
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
PCT/KR2009/001541
Other languages
English (en)
Korean (ko)
Other versions
WO2009120023A3 (fr
Inventor
성준엽
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.)
Apex Co Ltd
Original Assignee
Apex Co Ltd
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
Priority claimed from KR1020080028743A external-priority patent/KR20090103254A/ko
Priority claimed from KR1020080044458A external-priority patent/KR20090118581A/ko
Application filed by Apex Co Ltd filed Critical Apex Co Ltd
Publication of WO2009120023A2 publication Critical patent/WO2009120023A2/fr
Publication of WO2009120023A3 publication Critical patent/WO2009120023A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B60R2019/188—Blow molded structures

Definitions

  • the present invention relates to an energy absorber for automobiles, and more particularly, protrudes the unit block body forward and connects the block bodies to each other to increase the generated load and to prevent the protrusions from collapsing when the vehicle crashes. It is invented to improve the marketability.
  • an energy absorber 10 is attached to the front of the back beam 1 inside the front bumper cover in order to alleviate the impact during a vehicle collision and protect pedestrians as shown in FIG. 1. .
  • the back beam 1 is fixed in front of the vehicle body.
  • the energy absorber 10 built in the bumper cover absorbs the impact amount and functions to protect the pedestrian by lowering the speed of the vehicle.
  • the energy absorber 10 is usually made of a resin material, polypropylene is a typical raw material.
  • a steam chest method is employed to inject a resin raw material into a mold that is modeled after the energy absorber 10, and then heat is applied to expand and expand the raw material.
  • FIG. 2 is a perspective view of the shape of a representative known energy absorber 10.
  • the conventional energy absorber 10 is formed using a uniform resin raw material while protruding a plurality of unit blocks 20 toward the bumper cover.
  • the structure in which the conventional block-shaped unit blocks 20 are each protruded and formed at a distance has a disadvantage in that the overall thickness of the product has a limitation of making it slim during the molding process.
  • the wall of the unit block 20 is manufactured in a shape that is bent outward Efforts have been made to prevent local deformation.
  • the present invention is to provide an energy absorber that is improved to protect the pedestrian with a stable shock absorption by connecting the unit block body to each other by improving such a conventional problem.
  • Another object of the present invention is to provide an energy absorber capable of increasing the generated load as a result of the protruding block bodies being connected to one long, and preventing the block bodies from falling in the impact direction.
  • the present invention is embedded in the bumper cover to absorb the energy when colliding, and in the unit block 20 in front of the synthetic resin material integrally protruded at a distance,
  • connection 30 This is achieved by connecting the unit blocks 20 to each other in series by means of a connection 30.
  • the connecting portion 30 may further improve the stiffness by forming the zigzag form to stagger the height of each other.
  • the brick-shaped unit blocks 20 long connected to each other in the longitudinal direction may be obtained as a result.
  • the unit blocks 20 may collide with each other while reinforcing the rigidity of the unit blocks 20. This can prevent the fall.
  • FIG. 1 is a cross-sectional view showing a state in which an energy absorber is attached and fixed to the front of the back beam.
  • Figure 2 is a perspective view showing the shape of a conventional energy absorber.
  • Figure 3 is a perspective view partially showing the shape of the energy absorber molded by the present invention.
  • FIG. 4 is a front view of FIG. 3.
  • 5 to 8 are some perspective views showing the shape of the energy absorber molded by the present invention.
  • FIG. 9 is a cross-sectional view showing another embodiment of the present invention.
  • FIG. 1 shows a state in which the energy absorber 10 is attached to and fixed to the front of the back beam 1 with the energy absorber 10 located inside the bumper cover (not shown).
  • FIG. 2 is a partial perspective view of a shape of a conventional energy absorber 10.
  • FIG. 3 shows, in partial perspective, the shape of an energy absorber 10 shaped according to the present invention.
  • FIG. 4 is a front view of FIG. 3.
  • 5 to 8 are some perspective views showing the shape of the energy absorber molded by the present invention.
  • FIG. 9 is a cross-sectional view showing another embodiment of the present invention.
  • the energy absorber 10 of the present invention is attached to and fixed to the back beam 1 so as to absorb energy during a collision (not shown) as shown in FIG. 1, such that a bumper cover (not shown) covers the outside of the energy absorber 10. do.
  • the energy absorber 10 is formed of a synthetic resin material, and as shown in FIG. 2, the unit blocks 20 are integrally protruded at a distance from each other.
  • the unit blocks 20 are protruded to a plurality of forwards at a predetermined distance in a brick shape as shown in FIGS. 3 and 4, and the unit blocks 20 are transversely formed by the connection part 30. It is important to connect with each other.
  • the energy absorber 10 is displaced while absorbing the impact force toward the back beam 1 when the vehicle collides, as shown by a virtual line in FIG. 1, and the upper and lower surfaces of the unit block 20 are symmetrical in shape so that the ship is convex. It must be displaced to expect a stable shock absorbing effect.
  • the rigidity is reinforced so that the unit blocks 20 do not fall down when the vehicle crashes, as shown by the virtual line of FIG. 1.
  • stable shock absorption displacement can be induced.
  • the connecting portion 30 may be connected to the unit block 20 at the same height in a straight line from the center portion, but it is preferable to design the installation height different from each other in a zigzag manner as shown in Figs.
  • the connecting portions 30 improve the stiffness as a result of cross-connecting the unit blocks 20, as shown in FIG. Like virtual lines, displacement absorption can be induced more stably.
  • the rigidity of the introduction part at which the impact is first reached during the collision may be further improved by increasing the cross-sectional coefficient.
  • the stiffness is reinforced by forming the step 23 at the end, even if the impact force is applied in various directions and at various heights, the stiffness is improved, as well as the displacement absorption can be induced more stably as shown in the virtual line of FIG. will be.
  • FIG 5 shows an embodiment in which the unit block 20 is shaped into a rhombus shape.
  • FIG. 6 shows an embodiment in which a rectangular reinforcement groove 24 is formed to be dug inward in the center of the rhombus unit block 20 to further reinforce rigidity by improving the section coefficient.
  • FIG. 7 illustrates an embodiment in which the unit block 20 is molded into a rounded circular shape and is formed in an overall wave shape by the connection part 30.
  • FIG. 8 shows an embodiment in which the unit block 20 is shaped into a hexagonal shape, which will fall within the scope of rights described in the claims of the present invention even when implemented in the shape of any unit block 20 not illustrated in the drawings. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

La présente invention concerne un absorbeur d'énergie pour une automobile. De manière plus spécifique, l'objectif de l'absorbeur d'énergie de l'invention est d'améliorer la stabilité et la productivité. Étant donné que les blocs unitaires font saillie vers l'avant et sont reliés les uns aux autres, la charge produite augmente, ce qui empêche le déplacement des blocs unitaires provoqué par l'entrée en collision d'un véhicule. L'absorbeur d'énergie selon l'invention composé de résine synthétique est placé à l'intérieur du couvercle de pare-chocs de manière à pouvoir absorber l'énergie résultant d'une collision. Chaque bloc unitaire (20) situé devant l'absorbeur est éloigné d'autres blocs unitaires (20) et fait respectivement saillie de celui-ci. L'invention est caractérisée par les blocs unitaires (20) qui sont fixés au moyen de connecteurs (30).
PCT/KR2009/001541 2008-03-28 2009-03-26 Absorbeur d'énergie pour automobile Ceased WO2009120023A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2008-0028743 2008-03-28
KR1020080028743A KR20090103254A (ko) 2008-03-28 2008-03-28 자동차용 에너지 업소버
KR10-2008-0044458 2008-05-14
KR1020080044458A KR20090118581A (ko) 2008-05-14 2008-05-14 자동차용 에너지 업소버

Publications (2)

Publication Number Publication Date
WO2009120023A2 true WO2009120023A2 (fr) 2009-10-01
WO2009120023A3 WO2009120023A3 (fr) 2009-11-19

Family

ID=41114460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/001541 Ceased WO2009120023A2 (fr) 2008-03-28 2009-03-26 Absorbeur d'énergie pour automobile

Country Status (1)

Country Link
WO (1) WO2009120023A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033380B2 (en) 2012-05-23 2015-05-19 Sabic Global Technologies B.V. Energy absorber with staggered, vertically oriented crush lobes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672635B2 (en) * 2002-06-06 2004-01-06 Netshape Corporation Bumper with integrated foam and non-foam components
US6923494B2 (en) * 2002-08-23 2005-08-02 General Electric Company Pedestrian energy absorber for automotive vehicles
US20040174025A1 (en) * 2003-03-07 2004-09-09 General Electric Company Blow molded energy absorber for a vehicle front end

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033380B2 (en) 2012-05-23 2015-05-19 Sabic Global Technologies B.V. Energy absorber with staggered, vertically oriented crush lobes

Also Published As

Publication number Publication date
WO2009120023A3 (fr) 2009-11-19

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