CN1755054A - Door frieze structure - Google Patents
Door frieze structure Download PDFInfo
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- CN1755054A CN1755054A CN 200410081001 CN200410081001A CN1755054A CN 1755054 A CN1755054 A CN 1755054A CN 200410081001 CN200410081001 CN 200410081001 CN 200410081001 A CN200410081001 A CN 200410081001A CN 1755054 A CN1755054 A CN 1755054A
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- door
- overall width
- closed section
- section structure
- reinforcement
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- 230000002787 reinforcement Effects 0.000 claims abstract description 41
- 230000000694 effects Effects 0.000 description 14
- 238000005452 bending Methods 0.000 description 8
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The object of the invention is to provide a kind of door frieze structure that does not improve the distortion strength of the relative foe and aft force of door stringcourse with gaining in weight.Its door stringcourse 14 along front side door 12 is equipped with reinforcement 16.The bottom of the recess that forms at reinforcement 16 upper edge door stringcourses is car body fore-and-aft direction central portion to the inboard curved shape that protrudes of overall width from the viewed shape of car body above-below direction.In addition, the top of the protuberance that forms at door inner panel 24 upper edge door stringcourses is car body fore-and-aft direction central portion to the inboard curved shape that protrudes of overall width from the observed shape of car body above-below direction.Therefore, the centre of form P of the closed section structure 36 that is formed along the door stringcourses by door inner panel 24 and reinforcement 16 bends to the shape to the inboard protrusion of overall width.
Description
Technical field
The present invention relates to door frieze structure, particularly can be used for the door frieze structure of the car door of vehicles such as automobile.
Background technology
In the past, in the door frieze structure of the car door that can be used for vehicles such as automobile, stringcourse along the door inner panel of front side door is equipped with by the reinforcement that roll forming spare constituted that uses sheet metal, this reinforcement is to have two closed sections closed section structure partly of extending along stringcourse, and this structure is disclosed (as reference patent documentation 1.)。
Patent documentation 1: the spy opens the 2000-355219 communique
But in this structure, when the vehicle frontal collision and front pillar when retreating, the reinforcement that sets along the stringcourse of front side door is folded between front pillar and the center pillar.At this moment, in the portion of the rear and front end of reinforcement, the bight of overall width direction inboard is connected in front pillar and center pillar, pressure effect before and after reinforcement is subjected to from these tie points.In addition, these tie points are positioned at the vehicle-width direction inboard by the centre of form (center of fiqure) of the formed closed section part of reinforcement that is the straight line that extends along the car body fore-and-aft direction.Consequently, on the formed closed section part of reinforcement, outside the pressure of above-mentioned front and back, also exist and desire to make its moment of flexure effect to overall width (direction) outside curve.Therefore, from plan view, reinforcement bends to the shape of protruding to the overall width outside from linear state, and the centre of form further moves to overall width foreign side, so above-mentioned moment of flexure further increases, the door stringcourse is in overall width outside bending significantly.Therefore, for improve a stringcourse relatively before and after the distortion strength of (effect) power, be necessary to thicken the thickness of slab of reinforcement and gain in weight.
Summary of the invention
The present invention considers the problems referred to above, and its purpose is to obtain a kind of not gaining in weight and can improves a door frieze structure of the distortion strength of the relative foe and aft force of stringcourse.
The described the present invention of claim 1 is a kind of door frieze structure with car door of external door panel and door inner panel, it is characterized in that,
Have the reinforcement that forms the closed section structure along the door stringcourse, the centre of form of above-mentioned closed section structure bends to the inboard shape of protruding of overall width.
Therefore, when vehicle frontal collision (and making) when post retreats, intercolumniation before and after the closed section structure that forms along the stringcourse of side door is folded in.At this moment, in the portion of the rear and front end of door inner panel, before and after the bight of overall width direction inboard is connected on the post, pressure effect before and after the closed section structure is subjected to from these tie points desires to make its moment of flexure effect to the overall width outside curve so exist in the central authorities of the fore-and-aft direction of closed section structure.At this moment, because the centre of form of closed section structure bends to the inboard shape of protruding of overall width, make the closed section structure offset, desire to make the moment of flexure of closed section structure with desiring to the overall width inside bend to the moment of flexure of overall width outside curve so produce in the central authorities of the fore-and-aft direction of closed section structure.Consequently, can suppress the closed section structure to the overall width outside curve, prevent the big bending of a stringcourse to the overall width outside.Therefore, owing to there is no need to thicken the plate thickness of the parts that constitute the closed section structure, can not improve the distortion strength of the relative foe and aft force of door stringcourse with gaining in weight.
The described the present invention of claim 2 is a kind of door frieze structure with car door of external door panel and door inner panel, it is characterized in that,
Having a reinforcement that forms the closed section structure along the door stringcourse, the centre of form of above-mentioned closed section structure bends to relatively/from the interconnective straight line in the inboard bight of width of the front and back end of door inner panel shape to the inboard protrusion of overall width.
Therefore, when the vehicle frontal collision and post when retreating, intercolumniation before and after the closed section structure that forms along the stringcourse of side door is folded in.At this moment, in the portion of the rear and front end of door inner panel, before and after the bight of overall width direction inboard is connected on the post, pressure effect before and after the closed section structure is subjected to from these tie points desires to make its moment of flexure effect to the overall width outside curve so exist in the central authorities of the fore-and-aft direction of closed section structure.At this moment, since the centre of form of closed section structure bend to respect to the interconnective straight line in the inboard bight of overall width direction of the front and back end of door inner panel to the inboard shape of protruding of overall width, make the closed section structure offset, desire to make the moment of flexure of closed section structure so produce with desiring to the overall width inside bend to the moment of flexure of overall width outside curve in the central authorities of the fore-and-aft direction of closed section structure.Consequently, can suppress the closed section structure to the overall width outside curve, prevent the big bending of a stringcourse to the overall width outside.Therefore, owing to there is no need to thicken the thickness of slab of the parts that constitute the closed section structure, can not improve the distortion strength of the relative foe and aft force of door stringcourse with gaining in weight.
Description of drawings
Fig. 1 is the amplification profile along the 1-1 line of Fig. 6;
Fig. 2 is the amplification profile along the 2-2 line of Fig. 1;
Fig. 3 is the amplification profile along the 3-3 line of Fig. 1;
Fig. 4 is the amplification profile along the 4-4 line of Fig. 1;
Fig. 5 is the viewed exploded perspective view in the oblique outside of vehicle front from representing the door frieze structure that first embodiment of the present invention relates to;
Fig. 6 is the side of the car body that door frieze structure was suitable for that relates to of expression first embodiment of the present invention;
Fig. 7 is the corresponding sectional drawing of Fig. 1 of the door frieze structure that relates to of expression second embodiment of the present invention;
Fig. 8 is the amplification profile along the 8-8 line of Fig. 7;
Fig. 9 is the observed exploded perspective view in the oblique outside of vehicle front from representing the door frieze structure that second embodiment of the present invention is related.
Symbol description:
14 stringcourses of 12 front side doors
16 reinforcements, 22 front side door outside plates
The recess of 24 front side door inner panels, 30 reinforcements
The protuberance 36 closed section structures of 32 front side door inner panels
The protuberance of the bend 42 front side door inner panels of 40 front side door inner panels
The recess 46 closed section structures of 44 reinforcements
The specific embodiment
With reference to Fig. 1～Fig. 6 first embodiment of door frieze structure of the present invention is described.
In addition, arrow FR represents the vehicle front direction among the figure, and arrow IN represents side direction in the overall width, and arrow UP represents vehicle top direction.
As shown in Figure 6, in the car body 10 of present embodiment, along front side door 12 the door stringcourse 14 be equipped with reinforcement 16.In addition, the leading section 16A of reinforcement 16 arrives near the front pillar 18, and the rearward end 16B of reinforcement 16 arrives near the center pillar 20.
As shown in Figure 1, front side door 12 has the front side door inner panel 24 (the following inner panel 24 that only is called) of the inside portion, compartment of the front side door outside plate 22 (the following external door panel 22 that only is called) of the outside portion, compartment that constitutes front side door 12 and formation front side door 12.In addition, be equipped with reinforcement 16 on the top of door inner panel 24.
As shown in Figure 5, reinforcement 16 is the cap shape that is peristome side direction in overall width from the observed cross sectional shape of car body fore-and-aft direction, and the upper flange 16A of end edge portion formed thereon is welded on the upper flange 24A of the upper end edge portion that is formed at an inner panel 24.In addition, the lower flange 16B that is formed at the lower end edge portion of reinforcement 16 is welded on the general place 24B of an inner panel 24.
In addition, on the above-below direction central portion of reinforcement 16, be formed with to the inboard recessed recess 30 of overall width direction along the door stringcourse, this recess 30 is from the viewed cross sectional shape of car body fore-and-aft direction, as shown in Figure 3, be peristome towards the コ of overall width lateral direction font.
As shown in Figure 5, the depth H 1 of the recess 30 of reinforcement 16 is the darkest at the central portion of car body fore-and-aft direction, on the both ends of car body fore-and-aft direction, shoaling, be car body fore-and-aft direction central portion to the inboard curved shape that protrudes of overall width from the shape of the bottom 30A of the observed recess 30 of car body above-below direction.
In addition, on the top of door inner panel 24, be formed with to the outstanding protuberance 32 in the overall width direction outside along the door stringcourse, as Fig. 2 and shown in Figure 4, this protuberance 32 is the コ font of peristome side in overall width along the observed cross sectional shape of car body fore-and-aft direction.
As shown in Figure 5, the height H 2 of the protuberance 32 of door inner panel 24 is the highest at the both ends of car body fore-and-aft direction, at step-down on the central portion of car body fore-and-aft direction, be car body fore-and-aft direction central portion to the inboard curved shape that protrudes of overall width from the shape of the top 32A of the observed protuberance 32 of car body above-below direction.
Therefore, the centre of form P of the closed section structure 36 that forms along the door stringcourses by door inner panel 24 and reinforcement 16, as shown in Figure 2, being positioned at the distance that departs from from the general 24B of portion of door inner panel 24 near the leading section is on the position of K1, as shown in Figure 3, be positioned on the fore-and-aft direction central portion on the general 24B of portion of door inner panel 24 position, as shown in Figure 4, be positioned on the position that the distance that departs from from the general 24B of portion of door inner panel 24 is K3 (K2＜K1, K2＜K3) near the leading section for K2 closely.
That is, shown in Fig. 1 two chain-dotted lines, the centre of form P of the closed section structure 36 that is formed along the door stringcourses by door inner panel 24 and reinforcement 16 bends to the shape to the inboard protrusion of overall width.
Next the effect to present embodiment describes.
In the door frieze structure of present embodiment, if front pillar 18 retreats during the vehicle frontal collision, then the closed section structure 36 that forms along the stringcourse 14 of front side door 12 is folded in 20 of front pillar 18 and center pillars.At this moment, in the one of the rear and front end of door inner panel 24, bight S1, the S2 of overall width direction inboard is connected on front pillar 18 and the center pillar 20, pressure (arrow F) effect before and after closed section structure 36 is subjected to from these tie points S1, S2 desires to make its moment M 1 effect to the overall width outside curve so exist on the fore-and-aft direction central portion of closed section structure 36.
At this moment, because the centre of form P of closed section structure 36 bends to the inboard shape of protruding of overall width, make closed section structure 36 offset, desire to make the moment M 2 of closed section structure 36 with desiring to the overall width inside bend to the moment M 1 of overall width outside curve so on the middle body of the fore-and-aft direction of closed section structure 36, produce.Consequently, can suppress closed section structure 36 to the bending in the overall width outside, prevent the big bending of a stringcourse 14 to the overall width outside.
And then, if on the initial stage of the centre of form P of closed section structure 36 curved shape part, make the stringcourse 14 of front side door 12 further to the overall width outside curve, then on the fore-and-aft direction central portion of closed section structure 36, diminishing between the general 24B of portion of centre of form P and door inner panel 24 apart from K2 (offset).Consequently, even be subjected to this door (to the overall width outside) sweep effect, also can suppress closed section structure 36 to the overall width outside curve, prevent the big bending of a stringcourse 14 to the overall width outside.
Therefore, owing to there is no need to thicken the reinforcement 16 of formation closed section structure 36 and each plate thickness of door inner panel 24, can not improve the distortion strength of door stringcourse 14 relative foe and aft forces with gaining in weight.
Next, with reference to Fig. 7～Fig. 9 second embodiment of door frieze structure of the present invention is described.
In addition, the parts identical with first embodiment are marked with same-sign and omit its explanation.
As shown in Figure 9, in the present embodiment,, be formed with and bend to, be equipped with along bend 40 and bend to the inboard reinforcement 16 that protrudes shape of overall width to the inboard bend 40 that protrudes shape of overall width on the position of the door stringcourse of door inner panel 24.
In addition, on the bend 40 of door inner panel 24, be formed with to the outstanding protuberance 42 in the overall width direction outside along the door stringcourse, this protuberance 42 be peristome towards the コ of overall width internal direction font along the observed cross sectional shape of car body fore-and-aft direction.
In addition, on the above-below direction central portion of reinforcement 16, be formed with to the inboard recessed recess 44 of overall width direction along the door stringcourse, this recess 44 is peristome towards the コ of overall width outside direction font from the viewed cross sectional shape of car body fore-and-aft direction.
In addition, as shown in Figure 8, the height L1 that is formed at the protuberance 42 of bend 40 fixes along the car body fore-and-aft direction, and the degree of depth L2 of the recess 44 of reinforcement 16 also fixes along the car body fore-and-aft direction.
Therefore, in the present embodiment, as shown in Figure 7, bending to the inboard bend 40 that protrudes shape of overall width of door inner panel 24 along being formed with on the position of door stringcourse, owing to be equipped with reinforcement 16 along bend 40, so the centre of form P of the closed section structure 36 that is formed along the door stringcourses by door inner panel 24 and reinforcement 16, the straight line Q of overall width direction inboard bight S1, S2 of front and back end that bends to relative connection door inner panel 24 is to the shape of the inboard protrusion of overall width.
Next the effect to present embodiment describes.
In the door frieze structure of present embodiment, if front pillar 18 retreats during the vehicle frontal collision, then the closed section structure 46 that forms along the stringcourse 14 of front side door 12 is folded between front pillar 18 and the center pillar 20.At this moment, in the one of the rear and front end of door inner panel 24, bight S1, the S2 of overall width direction inboard is connected on front pillar 18 and the center pillar 20, pressure (arrow F) effect before and after closed section structure 46 is subjected to from these tie points S1, S2 exists on the fore-and-aft direction central portion of closed section structure 46 and desires to make its moment M 1 effect to the overall width outside curve.
At this moment, because the centre of form P of closed section structure 46 bends to the straight line Q of overall width direction inboard bight S1, S2 of front and back end of relative connection door inner panel 24 to the inboard shape of protruding of overall width, make closed section structure 46 offset, desire to make the moment M 2 of closed section structure 46 with desiring to the overall width inside bend to the moment M 1 of overall width outside curve so on the middle body of the fore-and-aft direction of closed section structure 46, produce.
Consequently, the fore-and-aft direction middle body that can suppress closed section structure 46 to the overall width outside curve, prevent the big bending of a stringcourse 14 to the overall width outside.
Therefore, owing to there is no need to thicken the reinforcement 16 of formation closed section structure 46 and each plate thickness of door inner panel 24, can not improve the distortion strength of door stringcourse 14 relative foe and aft forces with gaining in weight.
More than specific implementations of the present invention is had been described in detail, but the present invention is not limited in these embodiments, those skilled in the art can have other all embodiments within the scope of the invention, for example, at reinforcement 16 be not limited to the shape of the respective embodiments described above along the cross sectional shape of the formed closed section structure in position of the door stringcourse of door inner panel 24.
In addition, in the respective embodiments described above, reinforcement 16 is equipped on the inner panel 24, but also can reinforcement 16 be equipped on the external door panel 22 with replacing.
In addition, in the respective embodiments described above, door frieze structure of the present invention is used for front side door 12, but door frieze structure of the present invention can be used for also on other door of rear door etc.
The described the present invention of claim 1 is the door frieze structure with car door of external door panel and door inner panel, wherein, has the reinforcement that forms the closed section structure along the door stringcourse, because the centre of form of closed section structure bends to the inboard shape of protruding of overall width, so have the excellent results that can not improve the distortion strength of the relative foe and aft force of door stringcourse with gaining in weight.
The described the present invention of claim 2 is the door frieze structure with car door of external door panel and door inner panel, wherein, has the reinforcement that forms the closed section structure along the door stringcourse, since the centre of form of closed section structure bend to respect to the interconnective straight line in the inboard bight of overall width direction of the front and back end of door inner panel to the inboard shape of protruding of overall width, can not improve an excellent results of the distortion strength of the relative foe and aft force of stringcourse so have with gaining in weight.
Claims (2)
1. the door frieze structure with car door of external door panel and door inner panel is characterized in that,
Have the reinforcement that forms the closed section structure along the door stringcourse, the centre of form of described closed section structure bends to the inboard shape of protruding of overall width.
2. the door frieze structure with car door of external door panel and door inner panel is characterized in that,
Have a reinforcement that forms the closed section structure along the door stringcourse, the centre of form of described closed section structure bend to respect to the interconnective straight line in the inboard bight of overall width direction of the front and back end of door inner panel to the inboard shape of protruding of overall width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410081001 CN1755054A (en) | 2004-09-27 | 2004-09-27 | Door frieze structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410081001 CN1755054A (en) | 2004-09-27 | 2004-09-27 | Door frieze structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1755054A true CN1755054A (en) | 2006-04-05 |
Family
ID=36688579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410081001 Pending CN1755054A (en) | 2004-09-27 | 2004-09-27 | Door frieze structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1755054A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575653C (en) * | 2005-11-15 | 2009-12-30 | 日产自动车株式会社 | Opening portion structure |
| CN101641231B (en) * | 2007-03-30 | 2012-11-28 | 株式会社神户制钢所 | Automobile door with strengthened side collision performance |
-
2004
- 2004-09-27 CN CN 200410081001 patent/CN1755054A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575653C (en) * | 2005-11-15 | 2009-12-30 | 日产自动车株式会社 | Opening portion structure |
| CN101641231B (en) * | 2007-03-30 | 2012-11-28 | 株式会社神户制钢所 | Automobile door with strengthened side collision performance |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20060405 |