KR20150138487A - Hybrid crash box satisfied vehicle impact characteristics - Google Patents
Hybrid crash box satisfied vehicle impact characteristics Download PDFInfo
- Publication number
- KR20150138487A KR20150138487A KR1020140065081A KR20140065081A KR20150138487A KR 20150138487 A KR20150138487 A KR 20150138487A KR 1020140065081 A KR1020140065081 A KR 1020140065081A KR 20140065081 A KR20140065081 A KR 20140065081A KR 20150138487 A KR20150138487 A KR 20150138487A
- Authority
- KR
- South Korea
- Prior art keywords
- crash box
- epp
- collision
- present
- vehicle
- Prior art date
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Classifications
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- 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
-
- 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
- B60R19/24—Arrangements for mounting bumpers on vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
Description
[0001] The present invention relates to a hybrid crash box satisfying crashworthiness, and more particularly, to a hybrid crash box which is filled with expanded polypropylene (EPP) inside the crash box, Box.
In general, a bumper system for a vehicle is designed to elastically deform at a low-speed collision of a vehicle, thereby physically damaging the vehicle. In this case, the bumper system absorbs the impact of collision with another vehicle or a fixed body, , And a shock absorber disposed at the front and rear of the vehicle so as to minimize deformation of the vehicle body at the same time.
1, the bumper system includes a
Thus, the collision energy is absorbed as much as possible in the event of a vehicle collision, thereby minimizing the deformation of the vehicle body, thereby securing the occupant safety.
Therefore, the regulations on bumper systems are very strict, especially in the European market, the requirements are very demanding and more stringent.
For example, in an RCAR or Full Barrier Test, it is possible to absorb the maximum impact energy by compressing, deforming, or breaking within a limit that the bumper beam can withstand in the event of a collision to reduce the damage of the vehicle body, The deformation of the bumper beam must be minimized and it should not be easily broken.
In order to satisfy such a performance, the members constituting the bumper system should be optimally designed. However, the structure of the crash box 4 directly related to the impact energy absorption is very important.
Moreover, this is more so because it is necessary to satisfy the lightweighting issue of the vehicle.
Initially, the crash boxes have been formed by bending a plate material such as a 'C' shape, a 'W' shape, and the like and forming a part of the steel material as shown in Published Unexamined Utility Model Nos. 1998-036681 and 0240026 There have been efforts to increase collision absorption capacity.
However, as a basic property that a crash box should have, it is deformed at the time of collision but is not easily broken so that the collision energy is not transmitted to the bumper beam as much as possible. In some cases, however, There is a problem that collision energy is directly transmitted to the bumper beam, and on the contrary, there is a problem that it is easily broken.
SUMMARY OF THE INVENTION [0005] The present invention has been made in view of the above-described difficult and difficult conditions and phenomena, and has been developed to solve the above problems. The present invention provides a hybrid vehicle having a crash box with EPP filled therein, There is a main purpose in providing a crash box.
In order to achieve the above object, the present invention provides a crash box provided between a bumper beam and a vehicle body to absorb impact energy in the event of a vehicle collision, wherein EPP, which is a shock absorber, The collision performance of the hybrid crash box is improved.
At this time, the crash box is bolted together with the EPP by a long bolt passing through the crash box.
According to the present invention, EPP is filled in the inside of the crash box, and when the crash box is deformed by collision with the long bolt, the impact absorbing force by the EPP is added, so that the impact performance is further improved.
1 is an exemplary view showing a bumper system of a conventional vehicle.
2 is an exemplary view of a crash box according to the present invention.
3 is a partially enlarged view of a crash box according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.
In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
2 to 3, a hybrid crash box satisfying the collision performance according to the present invention is fixed to the
That is, the
The
Here, the present invention is configured such that EPP (Expanded Polypropylene) 300 is filled in an empty space in which the
In this case, the
Therefore, the collision energy is reduced to a significantly reduced form before being transmitted to the vehicle body, thereby achieving the impact reduction effect.
In addition, since the
The
The
The
As described above, the
100: Bumper beam 200: Crash box
300: EPP 400: long bolt
Claims (2)
And an EPP which is a shock absorber is built in an empty interior of the crash box.
Wherein the crash box is bolted together with the EPP by a long bolt passing therethrough.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140065081A KR20150138487A (en) | 2014-05-29 | 2014-05-29 | Hybrid crash box satisfied vehicle impact characteristics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140065081A KR20150138487A (en) | 2014-05-29 | 2014-05-29 | Hybrid crash box satisfied vehicle impact characteristics |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20150138487A true KR20150138487A (en) | 2015-12-10 |
Family
ID=54978898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140065081A KR20150138487A (en) | 2014-05-29 | 2014-05-29 | Hybrid crash box satisfied vehicle impact characteristics |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20150138487A (en) |
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2014
- 2014-05-29 KR KR1020140065081A patent/KR20150138487A/en not_active Application Discontinuation
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