CN1600624A - Engine cap stucture for vehicle - Google Patents
Engine cap stucture for vehicle Download PDFInfo
- Publication number
- CN1600624A CN1600624A CNA2004100743956A CN200410074395A CN1600624A CN 1600624 A CN1600624 A CN 1600624A CN A2004100743956 A CNA2004100743956 A CN A2004100743956A CN 200410074395 A CN200410074395 A CN 200410074395A CN 1600624 A CN1600624 A CN 1600624A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- car bonnet
- inner panel
- frangible portion
- outside plate
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 abstract 1
- 230000003116 impacting effect Effects 0.000 description 50
- 230000001133 acceleration Effects 0.000 description 21
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000003042 antagnostic effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Superstructure Of Vehicle (AREA)
- Body Structure For Vehicles (AREA)
- Window Of Vehicle (AREA)
Abstract
A hood is configured to have a closed cross section formed by an outer panel and an inner panel in the rear along the vehicle width direction, and to use a portion ahead of the rear end of the hood, which makes the rear end part of the closed cross section, by a prescribed distance L as a fragile part of the rear end part in the hood. Furthermore, the lower part of the windshield glass is extended to a part in the lower part of the vehicle from an extension line of a straight line extending toward the rear end of the hood from the fragile part of the hood.
Description
Technical field
The present invention relates to a kind of vehicle engine hood structure, especially relate to a kind of when vehicle such as automobile etc. is subjected to clashing into the vehicle engine hood structure of protection impacting body.
Background technology
In a kind of vehicle engine hood structure that is applicable to vehicle such as automobile etc., known a kind of conventional confguration, wherein, impact absorption part is arranged on the top of the articulated section at the rearward end place that is located at car bonnet, this articulated section is installed on the vehicle body (car body) by elastic mounting part, as disclosed in Japanese patent gazette (JP-A) No.2000-108842.
But in this vehicle engine hood structure, before the bottom of impacting body bump front screen (front windshield), clash in the situation of rearward end of car bonnet, because the antagonistic force of the rearward end of car bonnet, impacting body greatly slows down towards the moving velocity of front screen.As a result, the acceleration/accel of when impacting body bump front screen this impacting body of having decayed, and this front screen is elongated by the time that this impacting body crashes.Therefore, the overall input load that front screen acts on impacting body increases, and the ability of vehicle body protection impacting body reduces.
Summary of the invention
The present invention considers that above-mentioned situation proposes, and the invention provides a kind ofly can shorten time that front screen crashed by impacting body and the vehicle engine hood structure that can strengthen the ability of vehicle body protection impacting body.
The engine cover for vehicle of first aspect present invention has: be formed on from the rear end of car bonnet the frangible portion at the position of preset distance forward along lateral direction of car; And front screen, under the state of car bonnet closure, the bottom of this front screen extends to from the position of the extended line below of the straight line of the rear end of frangible portion sensing car bonnet.
Therefore, clash in the situation of the end face of car bonnet at the position of impacting body after also will leaning on before the bottom of impacting body bump front screen than frangible portion, the rearward end of this car bonnet is easy to distortion downwards and this frangible portion is an initial point, wherein, when car bonnet was in its closure state, this frangible portion was formed on from this car bonnet rear end the position of preset distance forward along lateral direction of car.Therefore, can suppress the decay of the acceleration/accel of impacting body when impacting body bump front screen.So, can prevent that front screen is elongated by the time that impacting body crashes.That is, when impacting body clashed into the rearward end of car bonnet, impacting body can crash front screen at short notice.Therefore, advantage is that the overall input load that front screen acts on impacting body reduces, and the ability of vehicle body protection impacting body strengthens.
Description of drawings
Fig. 1 is the amplification sectional view that the line 1-1 along Fig. 2 cuts open;
Fig. 2 is the block diagram when vehicle body the place ahead is seen at a certain angle, and the front portion of the vehicle body that adopts the vehicle engine hood structure relevant with one embodiment of the invention is shown;
Fig. 3 is the diagrammatic sketch that is used to illustrate service condition, and it illustrates the vehicle engine hood structure relevant with the embodiment of the invention;
Fig. 4 is the diagrammatic sketch that is used to illustrate service condition, and it illustrates the vehicle engine hood structure relevant with the embodiment of the invention;
Fig. 5 is the chart that the deformation stroke of car bonnet is shown and acts on the relation between the acceleration/accel of impacting body;
Fig. 6 is the chart that the deformation time of car bonnet is shown and acts on the relation between the acceleration/accel of impacting body;
Fig. 7 is the diagrammatic sketch that is used to illustrate service condition, and it illustrates the vehicle engine hood structure relevant with the embodiment of the invention;
Fig. 8 is the diagrammatic sketch that is used to illustrate service condition, and it illustrates the vehicle engine hood structure relevant with the embodiment of the invention;
Fig. 9 is the diagrammatic sketch that is used to illustrate service condition, and it illustrates the vehicle engine hood structure relevant with the embodiment of the invention;
Figure 10 is the chart that the deformation stroke of car bonnet is shown and acts on the relation between the acceleration/accel of impacting body;
Figure 11 is corresponding to Fig. 1 and the section drawing relevant with another embodiment of the present invention; And
Figure 12 be corresponding to Fig. 1 and with the relevant section drawing of a comparative example of the present invention.
The specific embodiment
Will be according to an embodiment of Fig. 1 to 10 explanation vehicle engine hood structure of the present invention.
Notice in the accompanying drawings, arrow UP represent vehicle upward to, arrow FR represent vehicle forwards to, and arrow IN representative is along the direction of lateral direction of car towards vehicle interior.
As shown in Figure 2, the rear end 12A that constitutes the car bonnet 12 of the anterior end face of the vehicle body 10 of automobile in the present embodiment extends in the below of the bottom (bottom) of front screen 14 14A.
As shown in Figure 1, car bonnet 12 has the inner panel 18 that the inboard (rear side) that is positioned at outside plate 16 is located.Place, rear portion at car bonnet 12 forms closed section 20 along lateral direction of car by outside plate 16 and inner panel 18.
As seeing in the lateral plan, the rear portion 22 of the inner panel 18 of formation closed section 20 is formed the open-topped inversion trapezoidal shape towards vehicle body.Curve 22A is formed on along lateral direction of car also will be towards the position of the place ahead preset distance L than the rear end 12A of the car bonnet 12 that is in its make position (position shown in Fig. 1).Towards the 22B of canopy portion of vehicle body rear extension at 22 places, rear portion that also will be formed on inner panel 18 than curve 22A towards the position at vehicle body rear.At the vehicle body rear side place of the 22B of canopy portion, the rearward end 18A of the rearward end 16A of outside plate 16 and inner panel 18 is incorporated into together by spinning.
Therefore, from the rear end 12A of car bonnet 12 preset distance L and are frangible portion 26 of car bonnet 12 forward as the position of the rearward end of closed section 20.Frangible portion 26 forms along lateral direction of car.
In addition, adhesion agent 32 is coated on the end face 18B adjacent with closed section 20 front sides of inner panel 18.Inner panel 18 and outside plate 16 join to together by adhesion agent 32.
The bottom 14A of front screen 14 extends to from the position of the extended line Q below of the straight line of the frangible portion 26 sensing car bonnet rear ends of car bonnet 12.The bottom 14A of front screen 14 is fixed to by adhesives 36 on the end face of back end flanges 34A of car jugularia 34.
Notice that the reference number 44 among Fig. 1 is represented car jugularia reinforcement.
Next the service condition of present embodiment is described.
As shown in Figure 3, also will be in the situation of the position at rear bump car bonnet 12 end faces at impacting body K before the bottom 14A of impacting body K bump front screen 14 in the frangible portion 26 of the rearward end of ratio engine cover 12, the part of being clashed into of car bonnet 12 is easy to downwards (along the arrow A direction) distortion and frangible portion 26 is initial point.
Therefore, in the present embodiment, shown in solid line among Fig. 5, it is littler than the variation that long and two-short dash line Fig. 5 is shown in the acceleration/accel G1 in the structure that does not form frangible portion 26 that the position S2 from the position S1 of impacting body K bump car bonnet 12 to impacting body K bump front screen 14 acts on the variation of acceleration/accel G of impacting body K.
In addition, in the present embodiment, shown in solid line among Fig. 6, it is littler than the variation that long and two-short dash line Fig. 6 is shown in the acceleration/accel G1 in the structure that does not form frangible portion 26 that the time T 2 from the time T 1 of impacting body K bump car bonnet 12 to impacting body K bump front screen 14 acts on the variation of acceleration/accel G of impacting body.
In the present embodiment, shown in solid line among Fig. 5, the maxim of the acceleration/accel G of S3 place, position after the position S2 of impacting body K bump front screen than Fig. 5 in long and two-short dash line to be shown in the maxim of the acceleration/accel G1 in the structure that does not form frangible portion 26 little.
In the present embodiment, shown in solid line among Fig. 6, near the time length the acceleration/accel maxim of the time proximity T3 place appearance after the time T 2 of impacting body K bump front screen than Fig. 6 near the time length that is shown in the acceleration/accel maxim in the structure that does not form frangible portion 26 of long and two-short dash line lack.
Therefore, in the present embodiment, the decay of the acceleration/accel G of impacting body K in the time of can being suppressed at impacting body K and clashing into the bottom 14A of front screen 14 as shown in Figure 4, and can stop front screen 14 elongated by the time that impacting body K crashes.
That is, in the present embodiment, when impacting body K clashed into the rearward end of car bonnet 12, impacting body K can crash front screen 14 at short notice.Therefore, the overall input load that front screen 14 acts on impacting body K reduces, and the ability of vehicle body protection impacting body strengthens.
In addition, in the present embodiment, as shown in Figure 7, in the situation at the top of the closed section 20 of impacting body K bump car bonnet 12, at first, outside plate 16 passes through position 16B (in the direction of arrow B) distortion downwards that adhesion agent 24 and adhesion agent 32 engage with inner panel 18.
Therefore, in the present embodiment, shown in solid line among Figure 10, at bump starting stage S4 place, the variation that acts on the acceleration/accel G of impacting body K is shown in the acceleration/accel G1 in the structure of the comparative example shown in Figure 12 that does not form frangible portion 26 than long and two-short dash line among Figure 10 variation is big.
Shown in solid line among Figure 10, in the present embodiment, car bonnet 12 as shown in Figure 8 under the effect of impacting body K, move down and car jugularia caulking gum 40 when being extruded the bump intermediary S5 place the variation of acceleration/accel G be varied down to Figure 10 in long and two-short dash line be shown in the identical level of variation of the acceleration/accel G1 in the structure that does not form frangible portion 26.Its reason is that the force of inertia of car bonnet 12 in the present embodiment reduces, and the distortion of car jugularia caulking gum 40 load is quite little.
As shown in Figure 9, at bump final stage S6 place, because impacting body K, the front end flange 34B of car bonnet 12 bump car jugularias 34, thereby the car jugularia caulking gum 40 of extruding between them and the leading section 38A of cowl louver 38, the inner panel 18 of car bonnet 12 and car jugularia 34 slightly deformed.Shown in solid line among Figure 10, in the present embodiment, the rising of the acceleration/accel that causes owing to secondary impact at this bump final stage S6 place such as Figure 10 in long and two-short dash line be shown in many that the rising of the acceleration/accel G1 in the structure shown in Figure 12 that does not form frangible portion 26 will relax.Its reason is to have guaranteed sufficient amount of energy at bump starting stage S4 place in the present embodiment.
That is, in the present embodiment, by form the canopy 22B of portion at inner panel 18 places, the longitudinal length N (referring to Fig. 7) of the deformation place of outside plate 16 is shortened, it is less to keep being bent downwardly of outside plate 16 to be out of shape.Thereby, can guarantee the amount of energy at car bonnet 12 places, and reduce the intrusion amount of impacting body K.Thereby the antagonistic force in the time of can slowing down car bonnet 12 bump car jugularias 34.
Therefore, in the present embodiment, can increase the acceleration/accel G of bump starting stage, can guarantee amount of energy, and can slow down the impact that causes by secondary impact.
Below with reference to specific embodiment the present invention is had been described in detail.But the present invention is not limited to these embodiment, it will be readily apparent to one skilled in the art that also to have other various embodiments within the scope of the present invention.For example, can adopt a kind of like this structure, wherein, remove as shown in Figure 1 the 22B of canopy portion with 22 places, rear portion of outside plate 16 and inner panel 18 and join together adhesion agent 24 to, only the adjacent end face 18B in the front side with closed section 20 of inner panel 18 engages with outside plate 16 by adhesion agent 32, as shown in figure 11.
As mentioned above, vehicle engine hood structure of the present invention has: be formed on from the rear end of car bonnet the frangible portion at the position of preset distance forward along lateral direction of car; And front screen, under the state of car bonnet closure, the bottom of this front screen extends to from the position of the extended line below of the straight line of frangible portion sensing car bonnet rear end.Therefore, advantage is to shorten the time that front screen is crashed by impacting body, and the ability that can strengthen vehicle body protection impacting body.
In addition, this engine cover for vehicle can be configured to have outside plate and inner panel, makes that at the frangible portion place, this inner panel is bent downwardly with respect to outside plate.Adopt this structure, when the end face of car bonnet was clashed at the position of impacting body after also will leaning on than frangible portion, the rearward end of this car bonnet was easy to distortion downwards and this frangible portion is an initial point.
This engine cover for vehicle can be configured to have outside plate and inner panel, makes this inner panel be basically parallel to this outside plate extends to car bonnet from frangible portion rear end.
In addition, can adopt a kind of like this structure, wherein, engine cover for vehicle has outside plate and inner panel, and this inner panel is basically parallel to this outside plate and extends to the rear end of car bonnet and be bent downwardly with respect to this outside plate in this frangible portion from frangible portion.Adopt this structure, when the end face of car bonnet was clashed at the position of impacting body after also will leaning on than frangible portion, the rearward end of this car bonnet was easy to distortion downwards and this frangible portion is an initial point.
In addition, according to a kind of like this structure, wherein, under the state of car bonnet closure, the bottom of front screen extends to the position of the below, rear end of this car bonnet, impacting body clashes into front screen reliably under the situation of the position bump car bonnet end face of impacting body after also will leaning on than frangible portion, and the rearward end of this car bonnet is easy to distortion downwards and this frangible portion is an initial point.
Claims (5)
1. vehicle engine hood structure, it comprises:
Be formed on from the rear end of engine cover for vehicle the frangible portion at the position of preset distance forward along lateral direction of car; And
Front screen, under the state of described car bonnet closure, the bottom of described front screen extends to the position of extended line below of straight line of pointing to the described rear end of described car bonnet from described frangible portion.
2. vehicle engine hood structure as claimed in claim 1 is characterized in that described engine cover for vehicle has outside plate and inner panel, and at described frangible portion place, described inner panel is bent downwardly with respect to described outside plate.
3. vehicle engine hood structure as claimed in claim 1 is characterized in that described engine cover for vehicle has outside plate and inner panel, and described inner panel is basically parallel to described outside plate extends to described car bonnet from described frangible portion described rear end.
4. vehicle engine hood structure as claimed in claim 1, it is characterized in that, described engine cover for vehicle has outside plate and inner panel, and described inner panel is basically parallel to described outside plate and extends to the described rear end of described car bonnet and be bent downwardly with respect to described outside plate in described frangible portion from described frangible portion.
5. vehicle engine hood structure as claimed in claim 1 is characterized in that, under the state of described car bonnet closure, the bottom of described front screen extends to the position of the below, described rear end of described car bonnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003332954A JP4428976B2 (en) | 2003-09-25 | 2003-09-25 | Vehicle hood structure |
| JP332954/2003 | 2003-09-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1600624A true CN1600624A (en) | 2005-03-30 |
| CN100358768C CN100358768C (en) | 2008-01-02 |
Family
ID=34419022
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100743956A Active CN100358768C (en) | 2003-09-25 | 2004-09-10 | Engine cap stucture for vehicle |
| CNU2004200932544U Expired - Lifetime CN2726997Y (en) | 2003-09-25 | 2004-09-10 | Engine hood structure for vehicle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200932544U Expired - Lifetime CN2726997Y (en) | 2003-09-25 | 2004-09-10 | Engine hood structure for vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4428976B2 (en) |
| CN (2) | CN100358768C (en) |
| DE (1) | DE102004046419B4 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4428976B2 (en) * | 2003-09-25 | 2010-03-10 | トヨタ自動車株式会社 | Vehicle hood structure |
| FR2897578B1 (en) * | 2006-02-22 | 2008-05-30 | Renault Sas | LOWER BAY TRAILER FOR A VEHICLE TO RECEIVE SHOCK CAUSED BY THE HEAD OF A PIETON AT THE BOTTOM OF THE WINDSHIELD |
| DE102006015401B4 (en) * | 2006-04-03 | 2013-04-04 | Audi Ag | Body component for a motor vehicle |
| DE102006015413B4 (en) * | 2006-04-03 | 2012-09-06 | Audi Ag | Front hood for a motor vehicle |
| FR2969075B1 (en) * | 2010-12-16 | 2012-12-28 | Peugeot Citroen Automobiles Sa | FRONT VEHICLE PART, SUCH AS A MOTOR VEHICLE WITH IMPROVED SAFETY IN THE EVENT OF A PIECE SHOCK |
| DE102012006526A1 (en) * | 2012-03-29 | 2013-10-02 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Front portion for motor vehicle, has elastic hollow body which is clamped between hood and frame in closed position and has cavity which communicates with environment over throttle point, where cavity is closed at its longitudinal ends |
| JP2021123191A (en) * | 2020-02-04 | 2021-08-30 | 三菱自動車工業株式会社 | Vehicular hood |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198859A (en) * | 1998-01-13 | 1999-07-27 | Nissan Motor Co Ltd | Vehicle hood rear end structure |
| JP3449463B2 (en) * | 1998-05-12 | 2003-09-22 | 本田技研工業株式会社 | Windshield support structure |
| JP3531789B2 (en) * | 1998-05-13 | 2004-05-31 | 本田技研工業株式会社 | Car hood |
| JP3716422B2 (en) * | 1998-09-30 | 2005-11-16 | マツダ株式会社 | Front structure for vehicles |
| JP3711847B2 (en) * | 2000-07-27 | 2005-11-02 | 日産自動車株式会社 | Airbag device for vehicle |
| JP3794325B2 (en) * | 2001-12-27 | 2006-07-05 | トヨタ自動車株式会社 | Automotive hood structure |
| JP4428976B2 (en) * | 2003-09-25 | 2010-03-10 | トヨタ自動車株式会社 | Vehicle hood structure |
-
2003
- 2003-09-25 JP JP2003332954A patent/JP4428976B2/en not_active Expired - Fee Related
-
2004
- 2004-09-10 CN CNB2004100743956A patent/CN100358768C/en active Active
- 2004-09-10 CN CNU2004200932544U patent/CN2726997Y/en not_active Expired - Lifetime
- 2004-09-24 DE DE102004046419A patent/DE102004046419B4/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005096604A (en) | 2005-04-14 |
| DE102004046419B4 (en) | 2008-08-21 |
| DE102004046419A1 (en) | 2005-05-04 |
| CN100358768C (en) | 2008-01-02 |
| CN2726997Y (en) | 2005-09-21 |
| JP4428976B2 (en) | 2010-03-10 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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