WO2020139239A1 - Boîtier de collision amortissant les chocs guidant une action de torsion - Google Patents

Boîtier de collision amortissant les chocs guidant une action de torsion Download PDF

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Publication number
WO2020139239A1
WO2020139239A1 PCT/TR2019/051013 TR2019051013W WO2020139239A1 WO 2020139239 A1 WO2020139239 A1 WO 2020139239A1 TR 2019051013 W TR2019051013 W TR 2019051013W WO 2020139239 A1 WO2020139239 A1 WO 2020139239A1
Authority
WO
WIPO (PCT)
Prior art keywords
crash box
area
crash
intensity
torsion
Prior art date
Application number
PCT/TR2019/051013
Other languages
English (en)
Inventor
Alperen Bayram
Metin ÇALLI
Dilara ERGİN
Ahmet ONAYLI
Original Assignee
Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
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 Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ filed Critical Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
Publication of WO2020139239A1 publication Critical patent/WO2020139239A1/fr

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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
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Definitions

  • the present disclosure relates to impact damping crash boxes connected to chassis in a manner to remain in inner side of front and rear bumpers of vehicles and to protect chassis during crash.
  • the present disclosure particularly relates to impact damping crash box providing absorption of excessive energy during crash and thus reducing damage after the accident thanks to its torsion feature.
  • crash box is produced in solid and in general one single part from metal materials.
  • Crash box produced in single part in the related art folds in line with the loads imposed thereon during crash, absorbs crash effects and thus prevents penetration of such effect into vehicle inside.
  • the profile used in the related art is of homogenous structure and does not have guiding spaces on part side walls and intensity reduced areas. This may result in breaking of profile after crash. Therefore, damage after the accident cannot be prevented as desired.
  • the present invention relates to a crash box to be installed onto automobile body and a method for production of the crash box. More specifically, the invention relates to a crash box to be fixed onto front part or rear part of a vehicle body for instance, comprising a tubular body which shrinks like a blower in case of any impact on axial direction of tubular body, and deforms like a plastic and thus absorbs crash energy and characterized that said tubular body is a body formed from a metal sheet, and a method for production of such crash box.”
  • the invention relates to energy absorber characterized in comprising at least two outer cavities forming front wavy surface, inner cavity connected to mentioned outer cavities, at least one rear surfaces, two side surfaces , bumper beam made from composite material comprising inner support forming three holes between said two side surfaces, rear surface, outer cavities and inner cavities, at least two crash boxes providing absorption of energy transmitted from bumper beam during crash, bumper beam connection part fixing said each crash box and bumper beam, chassis connection part providing connection of each crash box to bumper beam and convenient for mounting into bumper having weight reduced composite and metal parts.”
  • the invention relates to crash boxes developed to solve said disadvantages and provide some additional advantages.
  • Purpose of the invention is to provide torsion together with buckling during crash by designing some areas of crash box in intensive cage (lattice), some areas less intensive cage, some areas completely intensive, that is in solid and thus enhance energy damping.
  • Another purpose of the invention is to provide production of product by 3d printer. Thus features of material will be same in every part of the product.
  • a further purpose of the invention is to provide folding of embodiment thanks to cages/lattice of different intensity in embodiment and thus prevent reduction in resistance and provide keeping it same.
  • Another purpose of the invention is to provide buckling of impact damping under pressing force when part folds down and thanks to such buckling provide energy damping a little bit more.
  • a further purpose of the invention is to provide starting of breaking in not intensive areas because of weakness therein and provide buckling action as breaking in intensive areas occur later.
  • the invention is a crash box placed in front and rear bumper areas of vehicles and folding during crash and providing energy damping and occurrence of torsion together with buckling and thus enhancing energy damping characterized by comprising;
  • Figure - 1 shows two dimension side view of crash box of the invention.
  • Figure - 2 shows perspective view of crash box of the invention.
  • Figure - 3 shows schematic view of crash box of the invention.
  • Figure - 4 shows perspective view of different embodiment of crash box of the invention.
  • Figure - 5 shows two-dimension side view of different embodiment of crash box of the invention.
  • Figure - 6 shows perspective view indicating column lattice added embodiment to provide torsion and buckling in crash box alternatively.
  • Figure - 7 shows illustrative view of torsion in the crash box of the invention.
  • the crash box (10) of the invention is produced by means of 3-dimension printer and provides buckling and torsion features as it folds during crash.
  • the crash box (10) of the invention comprises cage (lattice) structures.
  • Said lattice structure comprises beams.
  • Crash box (10) consists of M area (1 1 ) and N Area (12) having different intensities in respect to each other. Mentioned intensity difference is provided by big or small diameters of beams forming lattice structure.
  • N area (12) represents lattice structures of ordinary intensity.
  • M area (1 1 ) is formed in less intensity or more intensity in respect to N area (12) by reducing and increasing diameters of beams forming lattices.
  • Torsion action together with buckling in the crash box occurs thanks to intensity difference between lattices forming M area (1 1 ) and N area (12). Breaking starts firstly due to weakness of the non-intensive areas, and upon occurrence of breaking in intensive areas later, torsion action is formed.
  • crash box (10) subject-matter of the invention can also be provided in a completely solid form instead of intensity enhanced lattice area in M area (1 1 ) or N area (12). Solid form refers to non-empty (no lattice) structure much more intensive in comparison to space lattice structure.
  • M area (1 1 ) is formed from corner points (A) of crash box (10) to the edge points (B). Parts remaining outside M area (1 1 ) forms N area (12).
  • M area (1 1 ) is formed spirally as far as the crash box (10) from upper surface (C) to lower surface (D),
  • Figure 1 shows two-dimension view of crash box (10). As seen in the figure, M area (1 1 ) is formed in a manner to wrap around side surfaces of crash box (10).
  • Figure 3 shows two- dimension view of M area (1 1 ) in position surrounding each side surface of crash box (10) in slope.
  • M area (1 1 ) in crash box (10) shown in figure 3 is formed in diagonal form from corner point (A) of upper surface (C) to lower surface (D) other corner point (A).
  • M area (1 1 ) which start from corner point (A) of an upper surface (C) and extent to any counter edge point (B) and to another edge point (B) extend up to lower surface (D) and surrounding crash box (10) spirally can be formed.
  • M area (1 1 ) can extend from corner point (A) to any edge point (B). M area (1 1 ) having more or less intensity in comparison to N area (12) formed in this way provides torsion together with buckling action to crash box (10) during crash. In crash boxes (10) which is cylindrical form, M area (1 1 ) can be formed by surrounding crash box (10).
  • L areas (13) can be formed in extended columns to areas outside crash box (10) (figure 6). L areas (13) are in form of lattice structure with less or more intensity or solid form. Upon adding L areas (13), intensity differences in crash box (10) are formed and torsion and buckling action can be exhibited.
  • the crash box (10) shown in figure 6 and lattices of less or more intensity forming such embodiment or solid structures’ sizes and shapes can be designed in a manner appropriate for enhancement of folding and energy absorbing capacity of part.
  • Crash box (10) produced as described in structure principle is placed in front or rear part of vehicle where it will be used.
  • a load is also imposed onto crash box (10) in X and Y directions as shown in figure 2 due to torsion and buckling.
  • crash box (10) twist around its axis as shown in figure 7 due to M area having spirally formed different lattice intensity in comparison to N area (12). Therefore, while crash box (10) provides energy absorption in vertical axis, it also provides energy absorption in X and Y directions thanks to torsion together with buckling. Therefore, thanks to achievement of torsion and buckling together, energy is absorbed more.

Landscapes

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

Abstract

Un boitier de collision (10) placé dans des zones de pare-chocs avant et arrière de véhicules et pliable pendant un accident et produisant un amortissement d'énergie et une occurrence de torsion conjointement avec le flambage et améliorant ainsi l'amortissement d'énergie, caractérisé en ce qu'il comprend : une zone N (12) formée dans une structure en treillis entre une surface supérieure (C) et une surface inférieure (D) du boitier de collision (10), une zone M (11) formée de manière à avoir moins d'intensité ou plus d'intensité en comparaison avec la zone N (12).
PCT/TR2019/051013 2018-12-28 2019-12-02 Boîtier de collision amortissant les chocs guidant une action de torsion WO2020139239A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/21045A TR201821045A2 (tr) 2018-12-28 2018-12-28 Burulma davranişini yönlendi̇ren darbe sönümleyi̇ci̇ çarpişma kutusu
TR2018/21045 2018-12-28

Publications (1)

Publication Number Publication Date
WO2020139239A1 true WO2020139239A1 (fr) 2020-07-02

Family

ID=71129272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/051013 WO2020139239A1 (fr) 2018-12-28 2019-12-02 Boîtier de collision amortissant les chocs guidant une action de torsion

Country Status (2)

Country Link
TR (1) TR201821045A2 (fr)
WO (1) WO2020139239A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023014312A1 (fr) * 2021-08-04 2023-02-09 Bursa Uludağ Üni̇versi̇tesi̇ Système permettant l'utilisation de modes de réalisation de porosité dans des éléments de sécurité de collision passifs dans des véhicules

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130065136A (ko) * 2011-12-09 2013-06-19 현대자동차주식회사 차량용 크래쉬박스
KR20130075063A (ko) * 2011-12-27 2013-07-05 주식회사 포스코 자동차용 크래쉬 박스
EP3351433A1 (fr) * 2015-09-14 2018-07-25 LG Hausys, Ltd. Boîtes-tampons de véhicule du type provoquant le flambage et traverse arrière de véhicule munie de celles-ci

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130065136A (ko) * 2011-12-09 2013-06-19 현대자동차주식회사 차량용 크래쉬박스
KR20130075063A (ko) * 2011-12-27 2013-07-05 주식회사 포스코 자동차용 크래쉬 박스
EP3351433A1 (fr) * 2015-09-14 2018-07-25 LG Hausys, Ltd. Boîtes-tampons de véhicule du type provoquant le flambage et traverse arrière de véhicule munie de celles-ci

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023014312A1 (fr) * 2021-08-04 2023-02-09 Bursa Uludağ Üni̇versi̇tesi̇ Système permettant l'utilisation de modes de réalisation de porosité dans des éléments de sécurité de collision passifs dans des véhicules

Also Published As

Publication number Publication date
TR201821045A2 (tr) 2020-07-21

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