KR101154262B1 - Crash absorbing box for vehicle - Google Patents
Crash absorbing box for vehicle Download PDFInfo
- Publication number
- KR101154262B1 KR101154262B1 KR1020100071879A KR20100071879A KR101154262B1 KR 101154262 B1 KR101154262 B1 KR 101154262B1 KR 1020100071879 A KR1020100071879 A KR 1020100071879A KR 20100071879 A KR20100071879 A KR 20100071879A KR 101154262 B1 KR101154262 B1 KR 101154262B1
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- South Korea
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- vehicle
- crash box
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- section
- face
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
Abstract
Automotive crash boxes are introduced to optimize the cross-sectional shape to satisfy both the RCAR corner test and the center test. The crash box for the vehicle is installed at both ends of the bumper beam 10 arranged in the width direction of the vehicle and connected to the side members of the vehicle body, so that in the crash box 100 provided to absorb impact energy during the collision of the vehicle, The cross-sectional shape of the crash box 100 is made of a hollow hexagonal cross-section, any one of the corners of the cross-section is formed by 90 degrees to form a rigid reinforcement (R), the rigid reinforcement (R) of the vehicle It is characterized in that it is located facing inward direction.
Description
The present invention relates to a crash box for a vehicle installed between a side member of a vehicle and a bumper beam to absorb impact energy during a collision of the vehicle.
In general, the bumper of the vehicle is installed at the front and rear of the vehicle body to protect the vehicle body and occupants in front and rear collision of the vehicle as well as to protect the engine and various equipment mounted in the hood and engine room.
The bumper includes a bumper cover forming the bumper shape, an energy absorber that mitigates an impact in a collision and has a shape restoration function after a collision, and a bumper beam that supports the energy absorber and is installed on a side member of the vehicle body. A crash box is installed between the bumper beam and the side member to absorb impact energy during a collision.
The crash box is mainly composed of a structure that can absorb the impact energy by compressive deformation in the axial direction of the vehicle body when the impact energy is applied to the bumper, it is possible to minimize the deformation of the side member to reduce the repair cost in the event of a vehicle crash It is desirable to have a structure that is present. In addition, it is necessary to have a structure that satisfies the regulations of the RCAR (Research Council for Automobile Repairs), which is a representative collision law of the automobile industry.
Meanwhile, referring to FIG. 1, in the conventional bumper performance test of the RCAR, only a corner test method for evaluating the compressive deformation performance by applying a shock D in a diagonal direction to the
On the other hand, the
However, in the case of octagonal cross section, it is advantageous to compressive deformation, but it is difficult to support the RCAR center test because it is disadvantageous in supporting the load. It is an advantageous structure to cope with, but it is difficult to cope with the RCAR corner test due to the disadvantage of compression deformation.
Therefore, there has been a need for the development of a crash box with an optimal shape that is advantageous for both the RCAR corner test and the center test.
The present invention has been proposed to solve the above problems and to meet the necessity, and an object of the present invention is to provide a crash box for a vehicle that can satisfy the RCAR corner test and the center test simultaneously by optimizing the cross-sectional shape.
Crash box for a vehicle according to the present invention for achieving the above object, is provided on both ends of the bumper beam disposed in the width direction of the vehicle and connected to the side members of the vehicle, the crash provided to absorb the impact energy during the collision of the vehicle In the box, the cross-sectional shape of the crash box is made of a hollow hexagonal cross-section, any one of the corners of the cross-section is formed by 90 degrees to form a rigid reinforcement, the rigid reinforcement is positioned to face the inner direction of the vehicle It is characterized by.
A cross section of the crash box includes a pair of vertical sides formed in parallel, a pair of horizontal sides formed in parallel, and three inclined sides connecting the vertical side and the horizontal side to be inclined, wherein the pair of vertical sides Is an inner side positioned to face the inward direction of the vehicle and an outer side positioned to face the outward direction of the vehicle, and the pair of horizontal edges are located on the upper side positioned to face the upper direction of the vehicle and the lower side of the vehicle. It is preferably made of a lower side positioned to face in the direction, the inner side and the upper side is preferably connected orthogonally.
When the distance between the horizontal sides is A, the length of the outer side is a1, and the length of the inner side is a2, the distance between the horizontal sides and the length of the outer and inner sides satisfy the following ranges. It is preferable.
0.2 <a1 / A <0.8
0.6 <a2 / A <0.9
According to the vehicle crash box as described above, by optimizing the cross-sectional shape it is possible to cope with the RCAR corner test and the center test at the same time.
1 is a view showing a conventional crash box.
FIG. 2 is a view showing an example of a section cut along the line AA of FIG. 1. FIG.
Figure 3 shows another example of a cross section taken along the line AA of Figure 1
4 illustrates a crash box in accordance with an embodiment of the present invention.
5 is a cross-sectional view taken along line BB of FIG. 4.
The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings. In the following description of the present invention, detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured by the present invention. In addition, in order to avoid duplication of description, the description of the same members as those described in the prior art is omitted and the same reference numerals are used.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to FIGS. 4 and 5, but partially referring to FIG. 1 described above, the
The
A cross section of the
Here, the pair of
On the other hand, when setting the distance between the
0.2 <a1 / A <0.8
0.6 <a2 / A <0.9
When the vehicle crash box according to the embodiment of the present invention as described above is applied to the vehicle, the conventional octagonal cross section is partially applied in the outward direction of the vehicle, which may be advantageous for compression deformation according to the RCAR corner test. In the inner direction of the vehicle, there is a rigid reinforcement part (R) to which the quadrilateral cross-sectional shape is partially applied, which may be advantageous in supporting the load according to the RCAR center test.
Therefore, when the vehicle crash box according to an embodiment of the present invention is applied to a vehicle, the RCAR corner test and the center test can be satisfied at the same time.
10: bumper beam 100: crash box
R: rigid reinforcement 110: vertical side
120: horizontal side 130: inclined side
111: inner side 112: outer side
121: upper side 122: lower side
Claims (3)
The cross-sectional shape of the crash box 100 is made of a hollow hexagonal cross-section, any one of the corners of the cross-section is formed by 90 degrees to form a rigid reinforcement (R), the rigid reinforcement (R) is a vehicle Crash box for a vehicle, characterized in that positioned to face inward.
A cross section of the crash box includes three pairs of vertical sides 110 formed in parallel, a pair of horizontal sides 120 formed in parallel, and three vertically connecting the vertical sides 110 and 120 horizontally. It includes an inclined side 130, wherein the pair of vertical sides 110 consists of an inner side 111 that is positioned to face the inner direction of the vehicle and an outer side 112 that is positioned to face the outer direction of the vehicle. The pair of horizontal sides 120 includes an upper side 121 positioned to face the upper side of the vehicle and a lower side 122 positioned toward the lower side of the vehicle, and the inner side 111 ) And the upper side 121 is a vehicle crash box, characterized in that connected to orthogonal.
When the distance between the horizontal side 120 is A, the length of the outer side 112 is a1, and the length of the inner side 111 is a2, the distance between the horizontal side 120 and the The length of the outer side 112 and the inner side 111 is a vehicle crash box, characterized in that made to satisfy the following range.
0.2 <a1 / A <0.8
0.6 <a2 / A <0.9
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100071879A KR101154262B1 (en) | 2010-07-26 | 2010-07-26 | Crash absorbing box for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100071879A KR101154262B1 (en) | 2010-07-26 | 2010-07-26 | Crash absorbing box for vehicle |
Publications (2)
Publication Number | Publication Date |
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KR20120010382A KR20120010382A (en) | 2012-02-03 |
KR101154262B1 true KR101154262B1 (en) | 2012-06-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020100071879A KR101154262B1 (en) | 2010-07-26 | 2010-07-26 | Crash absorbing box for vehicle |
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KR (1) | KR101154262B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150139730A (en) * | 2014-06-03 | 2015-12-14 | 현대자동차주식회사 | Crash box for vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104802741A (en) * | 2015-05-12 | 2015-07-29 | 苏州万隆汽车零部件股份有限公司 | Bumper |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002225651A (en) | 2001-02-02 | 2002-08-14 | Kobe Steel Ltd | Extrusion hollow section for bending |
-
2010
- 2010-07-26 KR KR1020100071879A patent/KR101154262B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002225651A (en) | 2001-02-02 | 2002-08-14 | Kobe Steel Ltd | Extrusion hollow section for bending |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150139730A (en) * | 2014-06-03 | 2015-12-14 | 현대자동차주식회사 | Crash box for vehicle |
CN105196937A (en) * | 2014-06-03 | 2015-12-30 | 现代自动车株式会社 | Crash Box For Vehicle |
KR101601428B1 (en) * | 2014-06-03 | 2016-03-09 | 현대자동차주식회사 | Crash box for vehicle |
US9290139B2 (en) | 2014-06-03 | 2016-03-22 | Hyundai Motor Company | Crash box for vehicle |
US9616833B2 (en) | 2014-06-03 | 2017-04-11 | Hyundai Motor Company | Crash box for vehicle |
US9623822B2 (en) | 2014-06-03 | 2017-04-18 | Hyundai Motor Company | Crash box for vehicle |
US9725057B2 (en) | 2014-06-03 | 2017-08-08 | Hyundai Motor Company | Crash box for vehicle |
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KR20120010382A (en) | 2012-02-03 |
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