CN100425496C - Front body structure of vehicle - Google Patents
Front body structure of vehicle Download PDFInfo
- Publication number
- CN100425496C CN100425496C CNB2005101080841A CN200510108084A CN100425496C CN 100425496 C CN100425496 C CN 100425496C CN B2005101080841 A CNB2005101080841 A CN B2005101080841A CN 200510108084 A CN200510108084 A CN 200510108084A CN 100425496 C CN100425496 C CN 100425496C
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- vehicle
- cross beam
- mudwing
- end cross
- car body
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Abstract
The invention discloses a front vehicle structure for improving vehicle rigidity and reducing vehicle weight, which comprises a front beam (4) extended along vehicle width and provided with a horizontal-U shaped section, a mudguard (7) at the back of the front beam (4) and extended along the vehicle length and a gusset plate (10) spanning the vehicle back of the front beam (4) and the longitudinal wall (7b) of the mudguard (7) at the corner formed by the front beam () and the mudguard (7), which comprises two L-shaped faces.
Description
Technical field
The present invention relates to a kind of front body structure of vehicle, for example, with the connection structure of the front end cross beam of vehicle frame.
Background technology
The body construction of the vehicle of prior art constitutes by vehicle frame and by the vehicle body (operator's compartment) of this vehicle frame by a plurality of body supports (rubber) supporting.The front portion of vehicle body is by following component set-up: extend the headlight supporting plate (backplate) that is provided with, the rear portion, both sides that is positioned at the headlight supporting plate and the mudwing (wheel shield) that is provided with to the vehicle body rear extension, be positioned at the anterior of headlight supporting plate and extend the front end cross beam (crossbeam) that is provided with along the overall width direction.
The front body structure of above-mentioned vehicle for example is being disclosed in the patent documentation 1.
Japanese documentation 1: Japan opens flat 5-29879 communique in fact
In the front body structure of above-mentioned vehicle, when connecting front end cross beam and headlight supporting plate, be to utilize the flange part that on front end cross beam, forms to carry out bonded assembly.Flange part is the face that forms approximate vertical, contacts with the vertical surface of headlight supporting plate, and connects at the car body fore-and-aft direction.
But, because front end cross beam is to extend the parts that are provided with along the overall width direction, so, when vehicle frame along the vehicle body above-below direction produce distortion, when left and right directions produces phase difference, the torque load that the load that is input to front end cross beam by body support becomes the car body fore-and-aft direction puts on car body.That is, the front end cross beam of prior art and headlight supporting plate are to break away from upward bonded assembly of direction (car body fore-and-aft direction) with respect to the moment of torsion that is input to front end cross beam.Like this, if connecting portion bears load on the disengaging direction, unfavorable to Joint strenght at least.And, if want to improve above-mentioned technological deficiency, then need strengthening part, so can cause the weight of car body to increase again.Therefore, in the vehicle of prior art, the light-duty car body that realization has rigidity is very difficult.
Summary of the invention
In view of above-mentioned technological deficiency, the objective of the invention is to, rethink from the method for attachment of front end cross beam, provide a kind of in the rigidity that improves car body, can realize the front body structure of weight-saving vehicle.
The front body structure of the vehicle that the first aspect present invention that addresses the above problem is related comprises:
Front end cross beam extend setting along the overall width direction, and the cross section forms roughly コ font;
Mudwing is arranged at the rear of above-mentioned front end cross beam, extends along the car body fore-and-aft direction to be provided with; And
Corner plate in the bight that is formed by above-mentioned front end cross beam and above-mentioned mudwing, across the face of the approximate vertical of the back of the car body fore-and-aft direction of above-mentioned front end cross beam and above-mentioned mudwing and be provided with, comprises roughly two faces of L shaped shape of formation.
Be connected to form in the inboard of the roughly コ font cross section of the flange part at the two ends up and down of a face of above-mentioned corner plate and above-mentioned front end cross beam and form closed section, simultaneously, connect the face of the above-mentioned approximate vertical of another face of above-mentioned corner plate and above-mentioned mudwing.
Solve the related front body structure of second aspect present invention of above-mentioned technological deficiency, in the front body structure of the related vehicle of a first aspect of the present invention, rear in the overall width direction both sides of above-mentioned front end cross beam comprises the headlight supporting plate, and the above-mentioned inner face that is formed at above-mentioned another face of curve and above-mentioned corner plate of car body fore-and-aft direction of above-mentioned headlight supporting plate and above-mentioned mudwing overlaps and is connected.
Solve the related front part of vehicle body construction of third aspect present invention of above-mentioned technological deficiency, in the front body structure of the related vehicle of second aspect present invention, the overall width direction outside at above-mentioned corner plate connects into the vehicle body mounting bracket across above-mentioned mudwing and above-mentioned headlight supporting plate, and this vehicle body mounting bracket is connected with the vehicle frame that extends setting along the vehicle body fore-and-aft direction by elastomeric element.
Front body structure according to the related vehicle of first aspect present invention comprises: front end cross beam extend setting along the overall width direction, and the cross section forms roughly コ font; Mudwing is arranged at the rear of above-mentioned front end cross beam, extends along the car body fore-and-aft direction to be provided with; And corner plate, in the bight that forms by above-mentioned front end cross beam and above-mentioned mudwing, across the face of the approximate vertical of the back of the car body direction of above-mentioned front end cross beam and above-mentioned mudwing and be provided with, comprise roughly two faces of L shaped shape of formation.The inboard that is formed at the roughly コ font cross section of the flange part at both ends up and down of a face of above-mentioned corner plate and above-mentioned front end cross beam is connected and forms closed section, simultaneously, the face that connects the above-mentioned approximate vertical of another face of above-mentioned corner plate and above-mentioned mudwing, thereby, the connecting portion of above-mentioned front end cross beam and above-mentioned corner plate, the connecting portion of above-mentioned mudwing and above-mentioned corner plate can bear load with respect to the load that is input to above-mentioned front end cross beam on shear direction, can make the thickness of slab attenuation of each parts, therefore, when improving rigidity of vehicle body, can also realize lightweight.
Front body structure according to the related vehicle of second aspect present invention, in the front body structure of the related vehicle of first aspect present invention, rear in the overall width direction both sides of above-mentioned front end cross beam comprises the headlight supporting plate, the curve of the car body fore-and-aft direction by will being formed at above-mentioned headlight supporting plate overlaps and is connected in above-mentioned another face of above-mentioned corner plate and the above-mentioned inner face of above-mentioned mudwing, can strengthen the connection of the above-mentioned another side of above-mentioned corner plate, therefore, can improve the rigidity of car body.And, can make the thickness of slab attenuation of each parts according to the degree of the rigidity that improves car body, so, can realize the lightweight of car body.
Front body structure according to the related vehicle of third aspect present invention, in the front body structure of the related vehicle of second aspect present invention, the overall width direction outside at above-mentioned corner plate connects into the vehicle body mounting bracket across above-mentioned mudwing and above-mentioned headlight supporting plate, this vehicle body mounting bracket is connected with the vehicle frame that extends setting at the car body fore-and-aft direction by elastomeric element, thereby, the connecting portion of above-mentioned front end cross beam and above-mentioned corner plate, the connecting portion of above-mentioned mudwing and above-mentioned corner plate can bear on shear direction from the load of above-mentioned vehicle frame by above-mentioned body support input, improves the rigidity of above-mentioned car body.And, can make the thickness of slab attenuation of each parts according to the degree of the rigidity that improves car body, so, can realize the lightweight of above-mentioned car body.
Description of drawings
Fig. 1 is the front body structure block diagram of the related vehicle of one embodiment of the invention;
Fig. 2 is the enlarged drawing of the A portion of Fig. 1;
Fig. 3 is the planar view of Fig. 2; And
Fig. 4 is that the B-B of Fig. 2 is to looking section drawing.
The specific embodiment
Below, with reference to accompanying drawing embodiments of the invention are elaborated.Fig. 1 is the block diagram of the front body structure of the related vehicle of one embodiment of the invention; Fig. 2 is the enlarged drawing of the A portion of Fig. 1; Fig. 3 is the planar view of Fig. 2; Fig. 4 is that the B-B of Fig. 2 is to looking section drawing.Upper and lower, the front, rear, left and right of car body are represented in upper and lower, front, rear, left and right among the figure.
Fig. 1 shows the front portion of car body 1, is provided with vehicle body 2 on top, simultaneously, is provided with the vehicle frame 3 of this vehicle body 2 of supporting in the bottom.
Front end cross beam 4 forms roughly コ font (grooved) cross section, forms flange part 4a (with reference to Fig. 3) at edge part.And, this roughly the open side in コ font cross section be provided with towards the car body rear extension.Headlight supporting plate 5 extends setting in the overall width direction, simultaneously, is connected with the two side ends back of front end cross beam 4, and headlight supporting plate top, the left and right sides is connected by the upper front end bar 6 as strengthening part.Mudwing 7 extends setting at the rear of front end cross beam 4 along the car body fore-and-aft direction, and its front end face 7a (with reference to Fig. 3) overlaps with headlight supporting plate 5 with front end cross beam 4 and is connected.
On the other hand, vehicle frame 3 extend to be provided with along the car body fore-and-aft direction, and its left and right sides portion is provided with mounting bracket (about being each) 8 in Fig. 1.This mounting bracket 8 is provided with the body support 9 as the elastomeric element of supporting vehicle body 2.Then, body support 9 is provided with vehicle body 2.That is to say that vehicle frame 3 is by body support 9 supporting vehicle bodies 2.
Shown in Fig. 2 to 4, be connected and the bight of the overall width direction inboard that forms is provided with corner plate 10 at longitudinal wall 7b by the back of the car body fore-and-aft direction of front end cross beam 4 and the face of the approximate vertical of mudwing 7.Corner plate 10 comprises having longitudinal wall 10a that forms two faces of L type roughly and the flange part 10b that forms at the both ends up and down of this longitudinal wall 10a, and a face is connected with front end cross beam 4 sides, and another face is connected with mudwing 7 sides.
The flange part 10b of a face of corner plate 10 is connected in the inside side walls that the cross section is roughly the front end cross beam 4 of コ font, and longitudinal wall 10a and front end cross beam 4 form closed section.In the drawings, this connection location is expressed as connecting portion X, its closure is to connect on the car body above-below direction, so that face of joint is roughly horizontal direction.On the other hand, the curve 5a that along car body fore-and-aft direction form of the longitudinal wall 7b of the longitudinal wall 10a of another face of corner plate 10 and mudwing 7 by headlight supporting plate 5 overlaps and is connected.In the drawings, this connection location is expressed as connecting portion Y, its closure is to connect on the overall width direction, so that face of joint is an approximate vertical.
And, in the outside of the overall width direction of corner plate 10 vehicle body mounting bracket 11 is arranged to across headlight supporting plate 5 and mudwing 7.
This vehicle body mounting bracket 11 is made of side wall portion 11a and bottom 11b.Side wall portion 11a is in the bight that is connected to form by headlight supporting plate 5 and mudwing 7, and across headlight supporting plate 5 and mudwing 7 and be provided with, its both ends are connected with mudwing 7 with headlight supporting plate 5.On the other hand, bottom 11b is connected with mudwing 7 and side wall portion 11a with headlight supporting plate 5 in this bight.
In addition, the bottom of bottom 11b is by above-mentioned body support 9 supportings.That is, the load of importing by body support 9 from vehicle frame 3 passes to vehicle body mounting bracket 11 at first.
Here, when vehicle ' during in the abominable road of detour or road conditions etc., from the load of wheel (omitting diagram) to vehicle frame 3 input car body above-below directions or left and right directions.Then, this load that is input to vehicle frame 3 passes to vehicle body mounting bracket 11 by body support 9, but also passes to parts such as front end cross beam 4, headlight supporting plate 5 and mudwing 7.At this moment,, promptly extend setting along the overall width direction because front end cross beam 4 is vertical with respect to vehicle frame 3, so, when from vehicle body mounting bracket 11 transfer charges, as shown in Figure 4, then import the moment of torsion Mx of car body fore-and-aft direction.
Equally, the load that is input to vehicle frame 3 also is delivered to mudwing 7 by body support 9.At this moment,, promptly extend setting along the car body fore-and-aft direction because mudwing 7 is parallel with respect to vehicle frame 3, so, when from vehicle body mounting bracket 11 transfer charges, as shown in Figure 3, then import the moment of torsion My of overall width direction.
In the formation of present embodiment, be provided with the corner plate 10 that is used to connect front end cross beam 4 and mudwing 7, and its flange part 10b is connected in the inside side walls in the cross section that is roughly the コ font of front end cross beam 4.That is, because this connecting portion X is that approximate horizontal connects along the car body above-below direction for making face of joint, so, can on shear direction, bear the moment of torsion Mx that is input to front end cross rail 4, thereby can prevent that connecting portion X breaks away from or damage.And, because the longitudinal wall 10a of corner plate 10 forms closed section with front end cross beam 4 and is connected, so, can also improve rigidity, can bear torque load Mx fully.
And, on another face of corner plate 10, the longitudinal wall 7b of longitudinal wall 10a and mudwing 7 is connected.That is, for making the face of joint approximate vertical, and this connecting portion Y is connected in the overall width direction, so, the moment of torsion My that is input to mudwing 7 can be on shear direction, born, thereby disengaging or the damage of connecting portion Y can be prevented.
As mentioned above, by being provided with respect to moment of torsion Mx and at shear direction bonded assembly connecting portion X and with respect to moment of torsion My and at shear direction bonded assembly connecting portion Y, thereby, with the bearing moment of torsion and compare breaking away from direction of prior art, can adapt to bigger load.Thus, when needs Joint strenght same as the prior art and rigidity, can make the thickness ratio of front end cross beam 4, headlight supporting plate 5 and mudwing 7 of the prior art thin, therefore, can realize the lightweight of car body 1.
Therefore, the front body structure according to the vehicle that the present invention relates to comprises: front end cross beam 4 extend setting along the overall width direction, and the cross section forms roughly コ font; Mudwing 7 is arranged at the rear of this front end cross beam 4, extends along the car body fore-and-aft direction to be provided with; And corner plate 10, in the bight that forms by front end cross beam 4 and mudwing 7, across the sidewall 7b of the back of the car body fore-and-aft direction of front end cross beam 4 and mudwing 7 and be provided with, comprise roughly two faces of L shaped shape of formation.Be connected the sidewall of inboard in the roughly コ font cross section of the formed flange part 10b in both ends up and down of a face of corner plate 10 and front end cross beam 4, and formation closed section, simultaneously, another face of corner plate 10 and the longitudinal wall 7b of mudwing 7 are connected, thereby can have the connecting portion X, the Y that on shear direction, bear load, improve Joint strenght, therefore, can improve the rigidity of car body 1.And, can make the thickness ratio of front end cross beam 4, headlight supporting plate 5 and mudwing 7 of the prior art thin according to the degree of the rigidity that improves car body 1, so, can realize the lightweight of car body 1.
And, the headlight supporting plate 5 that is provided with is extended at the rear, overall width direction both sides that also is included in front end cross beam 4 along the overall width direction, be connected with the longitudinal wall 10a of corner plate 10 and the longitudinal wall 7b coincidence of mudwing 7 by the curve 5a that makes the car body fore-and-aft direction that is formed at this headlight supporting plate 5, the connection of another side side that can reinforcing gusset plate 10, therefore, can improve the rigidity of car body 1.And, can make the thickness ratio of front end cross beam 4, headlight supporting plate 5 and mudwing 7 of the prior art thin according to the degree of the rigidity that improves car body 1, so, can realize the lightweight of car body 1.
And, the overall width direction outside at corner plate 10 connects into vehicle body mounting bracket 11 across headlight supporting plate 5 and mudwing 7, this vehicle body mounting bracket 11 is connected with the vehicle frame 3 that extends setting along the car body fore-and-aft direction by body support 9, thereby, even pass through body support 9 forward end crossbeams 4 and mudwing 7 input torques load Mx, My from vehicle frame 3, because be provided with the connecting portion X, the Y that on shear direction, bear load, so, disengaging or the damage of connecting portion X, Y can be prevented.And, because strengthened the connection of connecting portion X, Y, thereby improved the rigidity of car body 1.And, can make the thickness ratio of front end cross beam 4, headlight supporting plate 5 and mudwing 7 of the prior art thin according to the degree of the rigidity that improves car body 1, so, can realize the lightweight of car body 1.
Utilize possibility on the industry
Go for the syndeton in the body construction of vehicle.
Symbol description
1 car body, 2 vehicle bodies
3 vehicle frames, 4 front end cross beams
4a flange part 5 headlight supporting plates
7 mudwing 7a front end faces
7b longitudinal wall 8 mounting brackets
9 body supports, 10 corner plate
10a longitudinal wall 10b flange part
11 vehicle body mounting bracket 11a side wall portions
The 11b bottom
Claims (3)
1. the front body structure of a vehicle is characterized in that comprising:
Front end cross beam extend setting along the overall width direction, and the cross section forms roughly コ font;
Mudwing is arranged at the rear of described front end cross beam, extends along the car body fore-and-aft direction to be provided with; And
Corner plate in the bight that is formed by described front end cross beam and described mudwing, across the longitudinal wall of the back of the car body fore-and-aft direction of described front end cross beam and described mudwing and be provided with, and comprises roughly two faces of L shaped shape of formation;
The inboard that is formed at the roughly コ font cross section of the flange part at both ends up and down of a face of described corner plate and described front end cross beam is connected, and formation closed section, simultaneously, another face of described corner plate and the described longitudinal wall of described mudwing are connected.
2. the front body structure of vehicle according to claim 1 is characterized in that:
Rear, overall width direction both sides at described front end cross beam comprises the headlight supporting plate;
The curve that forms along the car body fore-and-aft direction of described headlight supporting plate is connected with described another face of described corner plate and the inner face coincidence of described mudwing.
3. the front body structure of vehicle according to claim 2 is characterized in that:
The overall width direction outside at described corner plate connects into the vehicle body mounting bracket across described mudwing and described headlight supporting plate, and described vehicle body mounting bracket is connected with the vehicle frame that extends setting at the car body fore-and-aft direction by elastomeric element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004294655A JP4100388B2 (en) | 2004-10-07 | 2004-10-07 | Front body structure of the vehicle |
| JP2004294655 | 2004-10-07 | ||
| JP2004-294655 | 2004-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1757558A CN1757558A (en) | 2006-04-12 |
| CN100425496C true CN100425496C (en) | 2008-10-15 |
Family
ID=36373758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101080841A Active CN100425496C (en) | 2004-10-07 | 2005-09-29 | Front body structure of vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4100388B2 (en) |
| CN (1) | CN100425496C (en) |
| TW (1) | TWI269733B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5640934B2 (en) * | 2011-09-13 | 2014-12-17 | 三菱自動車工業株式会社 | Front body structure of the vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05270443A (en) * | 1992-03-25 | 1993-10-19 | Toyota Motor Corp | Body front part structure for automobile |
| US5303973A (en) * | 1991-03-28 | 1994-04-19 | Mazda Motor Corporation | Front body structure of vehicle |
| JPH08113165A (en) * | 1994-10-19 | 1996-05-07 | Honda Motor Co Ltd | Front body section structure for automobile |
| US6523886B2 (en) * | 2001-02-15 | 2003-02-25 | Faurecia Industries | Front unit assembly of an automotive vehicle, comprising an improved components-fastening device, and vehicle equipped with such an assembly |
| US6547318B2 (en) * | 2000-11-24 | 2003-04-15 | Fuji Jukogyo Kabushiki Kaisha | Vehicle body front structure |
-
2004
- 2004-10-07 JP JP2004294655A patent/JP4100388B2/en not_active Expired - Lifetime
-
2005
- 2005-09-29 CN CNB2005101080841A patent/CN100425496C/en active Active
- 2005-09-30 TW TW94134217A patent/TWI269733B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303973A (en) * | 1991-03-28 | 1994-04-19 | Mazda Motor Corporation | Front body structure of vehicle |
| JPH05270443A (en) * | 1992-03-25 | 1993-10-19 | Toyota Motor Corp | Body front part structure for automobile |
| JPH08113165A (en) * | 1994-10-19 | 1996-05-07 | Honda Motor Co Ltd | Front body section structure for automobile |
| US6547318B2 (en) * | 2000-11-24 | 2003-04-15 | Fuji Jukogyo Kabushiki Kaisha | Vehicle body front structure |
| US6523886B2 (en) * | 2001-02-15 | 2003-02-25 | Faurecia Industries | Front unit assembly of an automotive vehicle, comprising an improved components-fastening device, and vehicle equipped with such an assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200611850A (en) | 2006-04-16 |
| TWI269733B (en) | 2007-01-01 |
| CN1757558A (en) | 2006-04-12 |
| JP4100388B2 (en) | 2008-06-11 |
| JP2006103572A (en) | 2006-04-20 |
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