CN101850751B - In-built component for automobile - Google Patents

Abstract

The invention discloses an in-built component for an automobile. The in-built component for the automobile is provided with an impact absorbing body arranged at the inner side of the side panel chamber of the automobile, and can enhance the impact absorbing performance by improving the shape and the structure of the impact absorbing body capable of absorbing impact load on the basis of bending deflection when side impact occurs. One side of the impact absorbing body (30) at the back side of an impact area (IA) of the in-built component for the automobile (10), i.e. a door panel, is provided with an opening (31), and the other side of the impact absorbing body (30) is provided with a hollow box body with a bottom wall (32); and the four corners of the bottom wall (32) are provided with corner cutting parts (34), chamfering is carried out on the turning parts of a side wall (33) to form chamfer parts (333) and form slot parts (334) for occlusion or triangular fins (36) or inner fin (321) and the like, thus regulating the reacting force when side impact occurs and further improving the impact absorbing performance.

Description

In-built component for automobile

Technical field

The present invention relates to a kind of in-built component for automobile that vehicle door interior trim panel, rear side trim panel etc. are installed on the indoor one side of vehicle side panel, relate in particular to and when vehicle generation side impact, can improve energy absorption and alleviate the in-built component for automobile that is applied to occupant's load with it.

Background technology

Generally speaking, various in-built component for automobile are installed in vehicle chamber, as representational in-built component for automobile, can exemplify the automobile door internal decoration plate on the side panel that is installed on vehicle.

The front elevation of vehicle door interior trim panel and the section-drawing of described automobile door internal decoration plate with reference to Figure 51 and Figure 52 describe the structure of described automobile door internal decoration plate.As shown in the figure, automobile door internal decoration plate 1 is towards indoor projection, and have a rest in order to make occupant put elbow, handrail 1a is outstanding formation towards indoor also, and handrail 1a below is formed with for accommodating the car door pocket 1b of standby, in its place ahead, is provided with in addition and is integrally formed with vehicle door interior trim panel 1 or loudspeaker grid 1c that split forms.

As shown in Figure 52, described automobile door internal decoration plate 1 is generally by forming desired shape and having shape stability and the resin core 3 of the installation rigidity of door skin 2 and the layered product that is laminated to the surface of resin core 3 and has an epidermis 4 of good surface feel and feel form relatively.

And then easily the so-called shock zone at the position such as contact occupant's waist and shoulder is provided with absorbing body 5 when vehicle is subject to impacting from side, described absorbing body 5 anchors at resin core 3 inner sides of vehicle door interior trim panel 1.

Described absorbing body 5 is and towards door skin 2, in a side, is provided with the hollow box body structure of opening 5a, and the general absorbefacient resin material of HI high impact that has that rubber series composition is joined to polypropylene (PP) resin that adopts is made.And, for resin core 3, conventionally utilize the fixedly underside wall 5b of absorbing body 5 of the adhesive agent bondings such as hot-melt adhesive.And impact direction applies to opening 5a side as shown in Figure 53 arrow when side impact.At this, symbol 5c represents sidewall (for example,, with reference to patent documentation 1).

Described patent documentation 1 is Japanese kokai publication hei 9-142252 communique (the 4th page, the 5th page, Fig. 7 to Fig. 9).

As mentioned above, existing vehicle door interior trim panel 1, is provided with in the shock zone that easily touches the positions such as occupant's waist or shoulder the absorbing body that is hollow box body shape 5 that is positioned at resin core 3 inner sides.But shown in the shock absorbing capability of existing absorbing body 5 diagram of curves as shown in Figure 54, deformation stroke (stroke) amount of the sidewall 5c institute flexure deformation of absorbing body 5 and almost proportional linear increase of antagonistic force, especially, during due to generation impact load, the antagonistic force of rear half stage becomes large, so the task of top priority is the antagonistic force that reduces the rear half stage while there is impact load.

While as mentioned above, there is impact load, the antagonistic force of rear half stage becomes large major cause and is: the sidewall 5c of absorbing body 5 is when flexure deformation, and four corners of underside wall 5b have high rigidity.

Summary of the invention

The present invention proposes in order to address the above problem, its object is to provide a kind of in-built component for automobile that is arranged on vehicle side panel, especially provide a kind of when reducing vehicle generation side impact the antagonistic force of rear half stage improve the in-built component for automobile of energy absorption.

And, when another object of the present invention is to provide a kind of antagonistic force that reduces rear half stage while there is impact load, the first half stage when there is impact load also may be controlled to suitable antagonistic force value, and the first half stage of impact load and the in-built component for automobile that rear half stage can improve energy absorption are occurring.

To achieve these goals, according to the in-built component for automobile that is installed on the indoor of vehicle side panel of the present invention, the absorbing body that is easily made the shock zone that the positions such as occupant's waist or shoulder contact by the trim panel main body as pedestal when for side impact and be arranged at the trim panel main body back side forms, and, the side that described absorbing body is formed from a resin is provided with opening, the hollow box body that opposite side is provided with underside wall forms, and when making any side in described opening or underside wall be located at trim panel main body towards side panel, be provided with impact absorber self and carry out cutting process, append to form and between strengthening rib or sidewall and trim panel main body, append the shock absorbing capabilities such as supporting construction side and strengthen unit.At this, as the in-built component for automobile that is installed on the indoor of vehicle side panel, can exemplify vehicle door interior trim panel, rear side trim panel etc.And inside components comprises: form the trim panel main bodys such as desired curved vehicle door interior trim panel main body, rear side trim panel main body and be located at the absorbing body at the trim panel main body back side.Described absorbing body is located at the trim panel main body back side for easily making the shock zone of the position contacts such as occupant's waist or shoulder.Described trim panel main body can be used thermoplastic base resin, for example can use polyethylene-based resin, polypropylene-based resin, polystyrene resin, PET series resin, polyvinyl alcohol resin, vinyl chloride-based resin, polyamide-based resin, polyacetal is resin, polycarbonate-based resin, ionomer is resin, acrylonitrile-butadiene-styrene copolymer (ABS) is resin etc., be preferably, suitable mixed filler in described thermoplastic base resin, glass fibre for example, the inorganic fibres such as carbon fibre or talcum, clay, silica, the extending agents such as inorganic particulate such as calcium carbonate.And, according to pressing mold, be shaped or the method such as injection molded forms resin core by described thermoplastic base resin with desired shape, and preferably can attach on the surface of resin core weave cotton cloth, the epidermis such as non-weaving cloth, synthetic resin board.

In addition, for absorbing body, adopt a side to be provided with the hollow box body that opening and opposite side are provided with underside wall, when there is side impact, can carry out impact-absorbing load by hollow box body flexural deformation.The preferred material of described absorbing body is the resin material with HI high impact absorptive character, for example, use in polypropylene (PP) resin and for example, make by the elastomer resin material of proper proportion mixed rubber composition (EP rubbers (EPR)).

And, described resin material is formed to the hollow box body of a side opening.Now, opening is towards side panel, and underside wall utilizes the adhesive agents such as hot-melt adhesive to anchor on the trim panel main body back side, or also can be by underside wall towards side panel setting.And, append and impact absorber is set implements cutting process, append and form strengthening rib or between the sidewall of absorbing body and trim panel main body, append the shock absorbing capabilities such as new supporting construction and strengthen unit.And, except the fixing method that bonds, can also utilize the methods such as ultrasonic is welded and fixed, heatsealing is fixing to be fixed.

And then according to the present invention, the absorbing body that is arranged at the trim panel main body back side is configured to a side and is provided with the hollow box body that opening, opposite side are provided with underside wall.Especially, absorbing body appends and is provided with shock absorbing capability strengthening unit, thus the impact load in the time of can effectively absorbing side impact, and can reduce the load that occupant bears.

According to a preferred embodiment of the invention, described shock absorbing capability strengthening unit is the corner cut portion that is located at absorbing body underside wall corner.

And then, according to this embodiment, the cut corner cut portion that processes out in corner due to absorbing body underside wall, therefore there is side impact and while being subject to impacting, stress can not converge, but be distributed to three points of corner cut portion, especially can reduce the antagonistic force of rear half stage while being hit load.And, can there is not the phenomenon that sidewall is difficult to bending (propping up) in the sidewall generation flexure deformation along with absorbing body, especially can effectively be reduced in the antagonistic force of the rear half stage while being subject to impact load.

As the preferred embodiments of the present invention, described shock absorbing capability strengthening unit be the chamfered section that the corner part at impact absorption body sidewall forms, the antagonistic force at initial stage when according to described chamfered section increase side impact.

At this, the method that the absorbing body that is applicable to this embodiment is set to the trim panel main body back side is preferably and will by hot-melt adhesive, is bondd fixing or be utilized the methods such as ultrasonic is welded and fixed, heatsealing is fixing to be set to the trim panel main body back side being set in the flange of the edge part of sidewall.And the corner part between the sidewall of hollow box body is provided with chamfered section (chamfer machining portion).

And then according to the present embodiment, while there is side impact, the absorbing body that is hollow box body shape is bent and deformed impact-absorbing effectively.Especially, at sidewall corner part, by chamfer machining, form chamfered section, thereby when there is side impact, compare underside wall side, the open side of hollow box body sidewall is out of shape towards outside expansion, therefore can improve initial stage antagonistic force.

In another embodiment of the present invention, the sidewall of absorbing body forms interlock slot part, the back side of described trim panel main body forms the guiding rib with rake in addition, described guiding rib is contained in described interlock with in slot part, thereby form described shock absorbing capability strengthening unit, when when there is side impact, impact absorber applies impact load, when using slot part to control bending direction along the rake moving contact of guiding rib by interlock, impel absorbing body to occur bending and deformation.

This embodiment is characterised in that the bending direction of absorbing body in the time of can controlling side impact.For this reason, the guiding rib with rake is located at the trim panel main body back side, and interlock is located on the sidewall of hollow box body in order to complete interlocking together with described guiding rib with slot part.For described guiding rib, when forming trim panel main body according to manufacturing process such as pressing mold shaping, injection moldeds, preferably integrally formed with trim panel main body, but when for example wooden core or paper in reel being carried out extrusion molding and forming trim panel main body, the method that can be integrally formed at by guiding rib is set in addition the support on resin board arranges guiding rib to cores such as wooden cores.And if the interlock contacting with the rake of guiding rib is set to dip plane with the position of slot part, while there is side impact, with slot part, the rake along guiding rib slides swimmingly in interlock, thereby can reduce efficiently initial stage antagonistic force.

And then, according to this embodiment, during side impact, the underside wall of absorbing body is subject to impact load, and the stress of underside wall can be delivered to sidewall around, but because interlock is slided along the rake that is arranged at the guiding rib of trim panel main body side with slot part, thereby the sidewall of absorbing body is crooked directed along the direction of tilt of guiding rib time, can effectively control thus the bending direction of absorbing body.Accordingly, even if arrange while giving the relief longitudinal wall flange part of product, also absorbing body can be located to the close position of longitudinal wall flange part.And, for the close position that is located at the structures such as clamshell after the car door pocket at the trim panel main body back side or Door Lock unit, also absorbing body can be set, and the antagonistic force can effectively adjust side impact time, absorbing body arranges place and also can freely select simultaneously.

And according to a preferred embodiment of the invention, described shock absorbing capability strengthening unit is the supporting blade that is located at the trim panel main body back side and contacts with the outside face of impact absorption body sidewall.

According to described embodiment, there is side impact and absorbing body while being subject to impact load, even if tilting, the relative absorbing body of loading direction is subject to making the power of its slip, also can carry out according to the supporting blade that is located at the trim panel main body back side power of supporting side walls direction of slip, thereby can corresponding impact load obtain suitable antagonistic force, and can give play to outstanding shock absorbing capability.

The described shock absorbing capability strengthening unit of another preferred embodiment of the present invention is for be formed at the triangle rib of absorbing body inner side from underside wall to sidewall, the sidewall excessive deflection distortion causing with the impact limiting due to different directions.

At this, the inner side of absorbing body from the inner side of underside wall to sidewall is provided with a plurality of triangle ribs.By described triangle rib is set, when inside components is subject to the impact of different directions, can absorb discrete antagonistic force.The shape of triangle rib is preferably: the height of triangle rib in 50%～80% scope of impact absorption height, the base of triangle rib be of a size of absorbing body width dimensions 10%～40%, the angle of triangle rib is 20 °～45 ° scopes.At this, the reason that the shape of rib is set as to triangle rib is, if rib is the shape that the end from absorbing body connects to end cross, the antagonistic force corresponding to frontal impact load also will become greatly, thereby is preferably triangle rib for the dispersion equably of exerting all one's strength.And when triangle rib is set, can in the situation that not increasing front antagonistic force, improve the performance for the impact of different directions.

And then, according to the present embodiment, while there is side impact, can occur bending and deformation by the absorbing body being formed by hollow box body impact-absorbing effectively.Especially, owing to inside sidewalls, triangle rib being set from underside wall inner side, even if be subject to the impact of different directions, also can absorb fully energy.

And, the described shock absorbing capability strengthening unit of another preferred embodiment of the present invention for the inside face from described absorbing body underside wall is upright, arrange and and sidewall between maintain the interior side rib that extend towards open side at interval, while suppressing side impact for the rigidity by described interior side rib, the antagonistic force of rear half stage reduces.

At this, from the inner side of the underside wall of absorbing body, towards open side projection, tabular interior side rib is set, and described interior side rib and sidewall maintain interval and extend towards open side.And, can excessively reduce by the antagonistic force of rear half stage when described interior side rib being set controlling side impact.The rib height of interior side rib can be arranged in 10%～90% the scope as the hollow box body height of absorbing body, and can select according to desired shock absorbing capability.

And then, according to described embodiment, while there is side impact, by being the absorbing body of hollow box body shape, occur bending and deformation impact-absorbing effectively.Especially, from the interior side rib that maintains interval and extend towards open side between the upright setting in underside wall inner side and sidewall, thereby the rear half stage when side impact makes interior side rib play the effect of retainer walls, and the antagonistic force that can suppress rear half stage excessively reduces, thereby obtain desirable energy absorption.

In another preferred embodiment of the present invention, the sidewall that is positioned at side from the four sides sidewall of described absorbing body extends to form connecting panel along the back side of trim panel main body towards outside, and append and arrange towards the upright impact absorption rib of side panel side by described connecting panel, form thus described shock absorbing capability strengthening unit, for absorbing body described in when the side impact, together with impact absorption, with rib, all occur bending and deformation, thus along longitudinal expansion of vehicle the region as shock zone.

And, according to described embodiment, because the side of absorbing body is appended impact absorption rib is set by connecting panel, thereby maintain reduced size in the situation that be the size of the absorbing body of hollow box body structure, according to impact absorption, with rib, obtain shock absorbing capability, and can increase shock zone along the fore-and-aft direction of vehicle thus, thereby when causing front stall position to change according to occupant's size difference, for example from seat the most forward little girl to general adult male, everyone can be guaranteed.And, even while thering is jut from the side panel of car body towards trim panel main body side, also can with the formed concaveconvex shape of rib three, prevent the interference with projection by absorbing body, connecting panel and impact absorption.

[invention effect]

In sum, it according to in-built component for automobile of the present invention, is the in-built component for automobile with absorbing body, absorbing body is the hollow box body structure with HI high impact absorptive character, especially, by the corner at underside wall, corner cut portion is set, thereby prevents from occurring in the latter half of the load that is hit stress concentration phenomenon, and reduce antagonistic force, therefore latter half when being subject to impact load especially, there is the effect that can improve energy absorption.

And then, for absorbing body, the resin material that its utilization has HI high impact absorptive character forms hollow box body shape, and in the corner of underside wall, corner cut portion is set, and, while preventing impact load by the thickness that rounding processing department is set in described corner cut portion or adjusts longitudinal wall, the antagonistic force in first half stage excessively reduces, and the first half stage when there is impact load and all stages of rear half stage, can both guarantee good energy absorption.

And then according to the embodiment of in-built component for automobile of the present invention, absorbing body is that a side arranges the hollow box body structure that opening, opposite side arrange underside wall, meanwhile, in trim panel main body, make opening or underside wall, towards side panel side, absorbing body is set.And the flexural deformation of absorbing body during according to side impact, can obtain suitable shock absorbing capability.And, at the corner part of sidewall, by carrying out chamfer machining, form chamfered section, strengthen thus initial stage antagonistic force; Or from underside wall at least plural triangle rib of side wall inner surface setting, can deal with thus the impact of both direction on each limit of surrounding of underside wall; Or the back side of trim panel main body forms guiding rib, and for across described guiding rib, the sidewall of absorbing body forms interlock slot part, the bending direction while controlling thus generation side impact; Or the supporting blade that is connected in impact absorption body sidewall by the setting of the vehicle door interior trim panel main body back side is adjusted antagonistic force, improve thus the energy absorption while there is side impact.

And, according to another embodiment of the present invention, comprising: the trim panel main body that is installed on the indoor of vehicle side panel; For easily making the shock zone of the position contacts such as occupant's waist or shoulder, be located at the absorbing body at the back side of trim panel main body.Described absorbing body is that a side is provided with the hollow box body structure that opening, opposite side are provided with underside wall, and, substantial middle place at underside wall inside face, maintain predetermined space with sidewall and extend to form interior side rib towards open side, and, the situation that during due to side impact, the antagonistic force of rear half stage reduces can be suppressed according to the brake action of described interior side rib, thereby the expected value in the time of can being effectively applicable to impact absorption is set with the impact absorbing structure of lower limit.

And then, according to another embodiment of the present invention, owing to extending and to be provided with connecting panel along the trim panel main body back side from being positioned at the sidewall of side of the absorbing body of hollow box body structure, at the upright impact absorption rib extending towards side panel side that forms in the end of described connecting panel, at absorbing body, set up impact absorption rib thus, thereby the little girl that seat position is the most forward and general adult male both can be guaranteed, absorbing body is owing to setting up impact absorption rib under the state keeping reduced size simultaneously, even if therefore side panel is provided with towards the side-prominent part of trim panel and also can prevents from interfering, thereby can improve, degree of freedom is set.

Accompanying drawing explanation

Fig. 1 is for representing the front elevation of application automobile door internal decoration plate of the present invention;

Fig. 2 is A-A line section-drawing in Fig. 1;

Fig. 3 is for representing the block diagram of the first embodiment of absorbing body used in the present invention;

Fig. 4 is for representing to measure the instruction diagram of the test method of the shock absorbing capability of absorbing body shown in Fig. 3;

Fig. 5 is the diagram of curves of correlationship of antagonistic force/intrusion amount of absorbing body shown in presentation graphs 3;

Fig. 6 is the block diagram of the variation of the first embodiment of expression absorbing body used in the present invention;

Fig. 7 is the diagram of curves of correlationship of antagonistic force/intrusion amount of absorbing body shown in presentation graphs 6;

In Fig. 8, (a) is the block diagram of the variation of the first embodiment of expression absorbing body used in the present invention, (b) is the cutaway view of B-B line in (a);

Fig. 9 is the cutaway view of another variation of the first embodiment of expression absorbing body used in the present invention;

Figure 10 is for representing that application is according to the section-drawing of the automobile door internal decoration plate of the second embodiment of in-built component for automobile of the present invention;

Figure 11 is applicable to according to the block diagram of the second embodiment of the absorbing body of in-built component for automobile of the present invention for representing;

The instruction diagram of Figure 12 shock absorbing capability when representing the side impact of absorbing body shown in Figure 11;

Figure 13 is for representing the diagram of curves of the shock absorbing capability of absorbing body shown in Figure 11;

The block diagram of the variation of the second embodiment of the absorbing body that Figure 14 is used for in-built component for automobile according to the present invention;

Figure 15 is for representing the diagram of curves of the shock absorbing capability of absorbing body shown in Figure 14;

Figure 16 is the block diagram of another variation of the second embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 17 is for representing the diagram of curves of the shock absorbing capability of absorbing body shown in Figure 16;

Figure 18 is the block diagram of another variation of the second embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 19 is for representing the diagram of curves of the shock absorbing capability of absorbing body shown in Figure 18;

Figure 20 is the instruction diagram of the 3rd embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

In Figure 21, (a), for representing the block diagram of the 3rd embodiment of the absorbing body that in-built component for automobile according to the present invention is used, (b) is cutaway view;

Figure 22 is the figure of shock absorbing capability of the 3rd embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention, and wherein (a) represents the state before side impact, (b) represents the state after side impact;

The cutaway view of the shock absorbing capability of Figure 23 when representing the side impact of absorbing body shown in Figure 21;

Figure 24 is for representing according to the diagram of curves of the shock absorbing capability of the 3rd embodiment of in-built component for automobile of the present invention;

Figure 25 is the instruction diagram of shock absorbing capability of variation of the 3rd embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention, wherein (a) represents the state before side impact, (b) represents the state after side impact;

Figure 26 is the block diagram of structure of another variation of the 3rd embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 27 is for representing the instruction diagram of the shock absorbing capability of absorbing body shown in Figure 26, and wherein (a) represents the state before side impact, (b) represents the state after side impact;

Figure 28 is the instruction diagram of another variation of the 3rd embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 29 is the block diagram of the absorbing body that uses according to the 4th embodiment of in-built component for automobile of the present invention of expression;

Figure 30 is the cutaway view of C-C line in Figure 29;

Figure 31 is the cutaway view of D-D line in Figure 29;

Figure 32 is for representing the instruction diagram of the shock absorbing capability of the absorbing body of the 4th embodiment shown in Figure 29, and wherein (a) represents the state before side impact, (b) represents the state after side impact;

Figure 33 is for representing the diagram of curves of the shock absorbing capability of absorbing body shown in Figure 29;

Figure 34 is the block diagram of the absorbing body that uses according to the 5th embodiment of in-built component for automobile of the present invention of expression;

Figure 35 is the cutaway view of E-E line in Figure 34;

Figure 36 is for representing according to the block diagram of the variation of the 5th embodiment of in-built component for automobile of the present invention;

Figure 37 is for representing according to the birds-eye view of another variation of the 5th embodiment of absorbing body of the present invention;

Figure 38 is the birds-eye view of another variation of the 5th embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 39 is the section-drawing of automobile door internal decoration plate of the 6th embodiment of the absorbing body that uses of expression application in-built component for automobile according to the present invention;

Figure 40 is the block diagram of the 6th embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 41 is for representing the instruction diagram of the size shape of the triangle rib of absorbing body shown in Figure 40;

Figure 42 is for representing absorbing body shown in Figure 40 to apply the instruction diagram of side impact performance test main points of the impact load of different directions;

Figure 43 is for representing the diagram of curves of the side impact performance test results of absorbing body shown in Figure 40;

Figure 44 is the section-drawing of automobile door internal decoration plate of the 7th embodiment of the absorbing body that uses of expression application in-built component for automobile according to the present invention;

Figure 45 is the block diagram of the 7th embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 46 is for representing the diagram of curves of the side impact performance test results of absorbing body shown in Figure 45;

Figure 47 is the block diagram of the 8th embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 48 is the cutaway view of the structure of the 8th embodiment that uses of expression in-built component for automobile according to the present invention;

Figure 49 is the block diagram of variation of the 8th embodiment of the absorbing body that uses of expression in-built component for automobile according to the present invention;

Figure 50 is for representing the cutaway view of impact absorption body structure shown in Figure 49;

Figure 51 is for representing the front elevation of existing automobile door internal decoration plate;

Figure 52 is the section-drawing of F-F line in Figure 51;

Figure 53 is for representing the block diagram of existing absorbing body;

Figure 54 is the diagram of curves of the correlationship of antagonistic force/intrusion amount of the existing absorbing body of expression.

The main nomenclature of accompanying drawing: 10 is automobile door internal decoration plate, 20 is vehicle door interior trim panel main body, 21 is resin core, 22 is epidermis, 23 is guiding rib, 23a is rake, 24 is braking recess, 25 is supporting blade, 26 is connecting strap, 30 is absorbing body, 31 is opening, 32 is underside wall, 321 is interior side rib, 33 is sidewall, 331 is crest line, 332 is stage portion, 333 is chamfered section, 34 is corner cut portion, 341 is rounding processing department, 35 for arranging with flange, 36 is triangle rib, 361 is large triangle rib, 362 is little triangle rib, 37 is impact absorption rib, 371 is connecting panel, 372 is reinforcing rib, 373 is corner cut portion, 374 is front end boss, 40 is door skin, 50 is resin support, 100 is impactor (load thing).

The specific embodiment

Below, with reference to accompanying drawing, describe the embodiment that in-built component for automobile according to the present invention is applicable to automobile door internal decoration plate in detail.At this, be noted that purport of the present invention is recorded in claim, below the content of each embodiment of explanation only illustrates an example of the present invention.

[embodiment mono-]

Fig. 1 to Fig. 5 is for representing the figure of the first embodiment of the present invention.Fig. 1 is for representing the front elevation of application automobile door internal decoration plate of the present invention, Fig. 2 is for representing the section-drawing of the structure of described automobile door internal decoration plate, Fig. 3 is the instruction diagram that expression is located at the absorbing body of described automobile door internal decoration plate, Fig. 4 is the instruction diagram of the test method of the shock absorbing capability of the described absorbing body of mensuration, and Fig. 5 is the diagram of curves of the correlationship of antagonistic force/intrusion amount of the described absorbing body of expression.In addition, Fig. 6, Fig. 7 illustrate the variation of the first embodiment of the present invention, and wherein, Fig. 6 is the block diagram that expression is applicable to the structure of absorbing body of the present invention, and Fig. 7 is for representing the diagram of curves of the shock absorbing capability of described absorbing body.In addition, Fig. 8, Fig. 9 are respectively expression as the instruction diagram of the impact absorption body structure of another variation of the first embodiment of the present invention.

First, based on Fig. 1 to Fig. 5, the first embodiment of the present invention is described.As shown in Figure 1 and Figure 2, automobile door internal decoration plate 10 by forming desired shape as the vehicle door interior trim panel main body 20 of pedestal be located at the shock zone IA of described vehicle door interior trim panel main body 20, absorbing body 30 compositions of the region that the positions such as the waist that easily makes occupant and shoulder contacts (at the present embodiment for easily making the region of occupant's waist contact).

Below, further describe.The vehicle door interior trim panel main body 20 of vehicle door interior trim panel 10 is provided with for Door Lock (not shown) being carried out to the internal handle cover of upholstery 11 of unlocking operation, has a rest in order to make occupant put elbow simultaneously, forms the handrail 12 towards indoor projection.And described handrail 12 is provided with and pulls handle 13 and electric car window switch adjuster 14, and is provided with opening 15 for car door pocket below handrail 12, and car door pocket is provided with the loudspeaker grid 16 forming with vehicle door interior trim panel main body 20 one or split above with opening 15.

And, at the present embodiment, the parts that form vehicle door interior trim panel main body 20 are by forming desired shape and having the resin core 21 of installation rigidity of relative door skin 40 and the epidermis 22 that is attached to the surface of resin core 21 and improves sense of touch and aesthetic property forms.The material of resin core 21, can be that resin, polycarbonate-based resin, ionomer are that resin, acrylonitrile-butadiene-styrene copolymer (ABS) are selected the resins such as resin from polyethylene-based resin, polypropylene-based resin, polystyrene resin, PET series resin, polyvinyl alcohol resin, vinyl chloride-based resin, polyamide-based resin, polyacetal, and the present embodiment adopt the acrylic resin that is mixed with the extending agents such as talcum (talc).In addition, epidermis 22 adopts the polyolefin elastomer resins such as thermoplastic olefin to make.In the present embodiment, in not shown shaping dies, epidermis 22 is set, afterwards shaping dies is carried out to matched moulds, and to injection moulding filling molten resin in the cavity of resin core 21, when forming thus the resin core 21 of desired curve form, resin core 21 is integrally formed with epidermis 22, with this, forms vehicle door interior trim panel main body 20.

Automobile door interior trim 10 according to the present invention is characterised in that: because the structure of the absorbing body 30 of impact-absorbing load when there is side impact is improved, thereby can obtain outstanding shock absorbing capability while there is side impact.

Described absorbing body 30 forms the hollow box body that a side with the resin material of HI high impact absorptive character is carried out to opening, and its object is that the rear half stage when being subject to impact load prevents that stress is concentrated.That is, the material of absorbing body 30 adopts the elastomer resin material that mixes EP rubbers (EPR) in polypropylene (PP) resin, and meanwhile, described absorbing body 30 comprises: towards the opening 31 of door skin 40; Be positioned at the opposition side of opening 31 and anchor at the underside wall 32 on resin core 21; Four sides sidewall 33.From size, absorbing body 30 is the cube shaped of length of side 100mm, and in addition, as shown in Figure 3, it is the corner cut portion 34 of 20mm that four corners of underside wall 32 form the length of side (representing with symbol d in figure).Described corner cut portion 34, makes the outside face of absorbing body 30 and inside face form opening.And, while absorbing body 30 being set in vehicle door interior trim panel main body 20, also can making underside wall 32 towards door skin 40, and opening 31 sides are anchored in vehicle door interior trim panel main body 20.

Below, the described shock absorbing capability that is the absorbing body 30 of hollow box body shape is described.As shown in Figure 4, utilize the adhesive agents such as hot-melt adhesive that the underside wall of absorbing body 30 32 is anchored on resin core 21 back sides, then from opening 31 sides, with the speed of 35km/h and the angle of body (torsoangle) of 0 °, load thing 100 is impacted to opening 31 center, antagonistic force value now and the deflection of absorbing body 30, i.e. the graphical representation of Fig. 5 for the interrelation of intrusion amount.

From the diagram of curves of Fig. 5, in the first half stage when being subject to impact load, antagonistic force and intrusion amount are almost directly proportional, in addition, the rear half stage when being subject to impact load, the antagonistic force peak value 8KN of take is boundary point, antagonistic force can reduce gradually.This be because, in the first half stage that applies impact load, sidewall 33 flexure deformations of absorbing body 30, therefore antagonistic force is directly proportional to intrusion amount (deflection of sidewall 33), but after antagonistic force reaches peak value 8KN, in this example, according to the corner cut portion 34 in four corners that is arranged on the underside wall 32 of absorbing body 30, stress can not concentrate on a point as in the past, but be dispersed on three points of corner cut portion 34, thereby described three points of take are basic point, sidewall 33 easily splits, and then make sidewall 33 easily destroyed, thereby can reduce at the rear half stage antagonistic force that is subject to impact load.

And then, in the first embodiment of the present invention, make the elastomer resin material with HI high impact absorptive character form hollow box body shape, and four corners that are bonded to the underside wall 32 at resin core 21 back sides are provided with corner cut portion 34, thereby can prevent the stress concentration phenomenon in the past producing at corner, and can reduce the antagonistic force of rear half stage while applying impact load, can guarantee good energy absorption thus.And also can adjust energy absorption by the shape of change corner cut portion 34.In addition, absorbing body 30, except using the cube shaped of above-mentioned hollow, also can be used the cylindrical body such as triangle cylinder, hexagonal cylinder.

Fig. 6, Fig. 7 are for representing according to the figure of the variation of the first embodiment of the present invention.Due to the structure except impact absorber 30 changes, other are identical with the first embodiment, and therefore the structure of an impact absorber 30 describes.For this variation, although it is identical with the first embodiment in four corners of underside wall 32, corner cut portion 34 to be set as shown in Figure 6, at the upside of corner cut portion 34, be provided with rounding processing department 341.

And, due to the upside in corner cut portion 34, be provided with rounding processing department 341 with the corner cut portion 34 at the junction surface of sidewall 33 crest lines 331, thus in the time of can preventing from being subject to impacting before reaching predetermined antagonistic force the crest line 331 along sidewall 33 produce the phenomenon in cracks.

That is, as shown in Figure 7, intrusion amount reaches the antagonistic force peak value of 8KN while being 80mm, but reaches the first half stage that is subject to impact load before peak value, can increase the amount of energy that is equivalent to position as shown in the diagram of curves bend of Fig. 7.And then, because corner cut portion 34 is provided with rounding processing department 341, thereby the antagonistic force that can offset the first half stage of the load that is hit excessively reduces, therefore not only can reduce the antagonistic force of rear half stage while being subject to impact load, the antagonistic force in first half stage while being subject to impact load can also be improved, thereby energy absorption can be further improved.In addition, the curvature of rounding processing department 341 can at random be set according to the impact load as control object, and for example, rounding (curvature) is preferably 0.5～20 scope.

Fig. 8, Fig. 9 are for representing the figure of another variation of the present invention.In Fig. 8 (a), the variation shown in (b), for the thickness of sidewall 33, the sidewall 33 thickness a of phase ratio open 31 sides, the sidewall 33 thickness b of underside wall 32 sides are thicker, and thickness changes gradually.In addition, Fig. 8 (b) is the cutaway view of B-B line in Fig. 8 (a).Therefore, in this variation, four corners of underside wall 32 sides of absorbing body 30 are provided with corner cut portion 34, thereby reduce the antagonistic force of the rear half stage while being subject to impact load, and the phenomenon that excessively reduces of the antagonistic force in the first half stage can suppress to be hit load according to the variation in thickness of sidewall 33 time, therefore guarantee to there is same function effect with above-mentioned variation.In addition, as shown in Figure 9, be different from the thickness of sidewall 33 is changed gradually, stage portion 332 can also be set, make the sidewall 33 thickness a of opening 31 sides and the sidewall 33 thickness b of underside wall 32 sides be set as a < b, the antagonistic force in the first half stage of the load that can suppress to be thus hit excessively reduces phenomenon.

[embodiment bis-]

Figure 10 to Figure 19 is for representing figure according to a second embodiment of the present invention.Figure 10 is for representing the section-drawing of the structure of automobile door internal decoration plate, Figure 11 is the block diagram that expression is arranged on the absorbing body of described automobile door internal decoration plate, Figure 12 is for representing the instruction diagram of the shock absorbing capability of described automobile door internal decoration plate, and Figure 13 is for representing the diagram of curves of the shock absorbing capability of described absorbing body.In addition, Figure 14 to Figure 19 is for representing the figure of the variation of second embodiment of the invention, wherein, Figure 14 is for representing the block diagram of absorbing body, Figure 15 is for representing the diagram of curves of the shock absorbing capability of described absorbing body, and Figure 16 is for representing the block diagram of another absorbing body, and Figure 17 is for representing the diagram of curves of the shock absorbing capability of described absorbing body, Figure 18 is for representing the block diagram of another absorbing body, and Figure 19 is for representing the diagram of curves of the shock absorbing capability of described absorbing body.

In a second embodiment, automobile door internal decoration plate 10 as the vehicle door interior trim panel main body 20 of pedestal be located at the shock zone IA of described vehicle door interior trim panel main body 20, easily makes absorbing body 30 compositions of the position that the positions such as occupant's waist and shoulder contacts by forming desired shape.

In a second embodiment, in described absorbing body 30 use polypropylene (PP) resins, mix the elastomer resin material of EP rubbers (EPR) and make, and form the hollow box body as pedestal by injection molded.And, absorbing body 30 as shown in Figure 10 to Figure 12, towards vehicle door interior trim panel main body 20 1 sides, be provided with opening 31, in the symmetrical position of opening 31 edge parts, be provided with by ultrasonic be welded and fixed, heatsealing is fixed, it is fixing to bond or other mechanical methods such as fixing are arranged on arranging with flange 35 in vehicle door interior trim panel main body 20.And, at the opposition side of described opening 31, towards door skin 40 1 sides, be provided with underside wall 32, and four faces in the space between opening 31 and underside wall 32 are formed with sidewall 33.And the approximate size of described absorbing body 30 is that the length of side is the cube shaped of 100mm.In addition, also can adopt and make opening 31 towards door skin 40, underside wall 32 is fixed on to the structure of vehicle door interior trim panel main body 20.

The second embodiment is characterised in that, can effectively control shock absorbing capability, the especially antagonistic force of absorbing body 30.That is,, as the structure of effectively antagonistic force being controlled, as shown in figure 11, the boundary portion (corner part) between four sidewalls 33 of absorbing body 30 forms chamfered section 333 to the present embodiment.Described chamfered section 333 extends to panel side end 333b from open side end 333a, from opening 31, extends to underside wall 32.The fillet surface width dimensions of described chamfered section 333 (representing with symbol w in figure) is preferably within the scope of 2～4mm and selects.As shown in Figure 12 (a), when because the reason such as side impact is while being subject to impacting F from the side of vehicle, the underside wall 32 of absorbing body 30 is impacted from door skin 40, thereby sidewall 33 and chamfered section 333 are expanded and flexural deformation laterally as shown in the arrow of Figure 12 (b).Therefore, use is during according to the absorbing body 30 of the second embodiment, as shown in figure 13, compare the situation that corner cut portion is only set of conventional example, it is large that initial stage antagonistic force becomes, and corner part is damaged by pressure and splits during side impact, initial stage antagonistic force becomes large thus, and corresponding to impacting four limits, split, therefore can keep antagonistic force to a certain degree, thereby can just can fine regulate antagonistic force by suitably adjusting fillet surface width dimensions w.

Figure 14 to Figure 19 is for representing according to the figure of the variation of the second embodiment.In the absorbing body 30 shown in Figure 14, the chamfered section 333 that is arranged at sidewall 33 corner parts forms the shape of gradually dwindling to panel side end 333b fillet surface width dimensions from open side end 333a.For example, in this variation, the fillet surface width dimensions w1 of open side end 333a is made as 4mm, and the fillet surface width dimensions w2 of panel side end 333b is made as 2mm.So, when fillet surface width dimensions diminishes gradually from w1 to w2, as shown in the diagram of curves of Figure 15, along with impact-absorbing, antagonistic force has the tendency that becomes large, therefore in the situation that basic antagonistic force is less than required value, preferably can adopt above-mentioned variation.

In addition, can consider the situation contrary with above-mentioned variation.That is, as shown in figure 16, when changing the width dimensions of chamfered section 333, make the fillet surface width dimensions w1 of open end 333a be made as little width, make the fillet surface width dimensions w2 of the panel side end 333b of opposition side be made as large width.Now, as shown in the diagram of curves of Figure 17, when there is side impact, along with flexural deformation antagonistic force can not become greatly yet, thereby when the relative required value of antagonistic force is excessive, use said structure can be more effective.

In addition, as shown in figure 18, can on the basis of chamfered section 333, increase corner cut portion 34 and and use.That is, to chamfered section 333 excision panel side end 333b, just can form simply said structure.And, because chamfered section 333 and corner cut portion 34 are used together, thereby as shown in the diagram of curves of Figure 19, can reduce initial stage antagonistic force, and can more fine control whole antagonistic force and initial stage antagonistic force.And, on the combined basis of chamfered section 333 and corner cut portion 34, can also add and make the fillet surface width dimensions w1 of chamfered section 333, the structure of w2 gradual change.

[embodiment tri-]

Figure 20 to Figure 28 is for representing the figure of a third embodiment in accordance with the invention.Figure 20 is for representing the section-drawing that structure is set of the absorbing body of vehicle door interior trim panel, (a) of Figure 21 and (b) for representing respectively block diagram and the cutaway view of the structure of described absorbing body, Figure 22 is for representing the instruction diagram of the effect of described absorbing body, Figure 23 is the section-drawing of the case of bending of absorbing body while representing side impact, and Figure 24 is for representing the diagram of curves of the shock absorbing capability of vehicle door interior trim panel.Figure 25 to Figure 28 is for representing to be applicable to the figure of variation of the absorbing body of the third embodiment of the present invention.Figure 25 is for representing interlock to carry out with slot part the instruction diagram of the variation of dip plane processing, Figure 26, Figure 27 represent by guiding rib design braking is more accurately controlled the figure of the variation of antagonistic force with recess, wherein Figure 26 is for representing the block diagram of absorbing body, the instruction diagram of the state of Figure 27 when representing the flexural deformation of described absorbing body, Figure 28 arranges according to the instruction diagram of the variation of absorbing body provided by the present invention the inside components with wooden core is made for representing.

In the 3rd embodiment, automobile door internal decoration plate 10 is by forming desired shape and as the vehicle door interior trim panel main body 20 of pedestal be located at the shock zone IA of described vehicle door interior trim panel main body 20, absorbing body 30 compositions in the region that the positions such as the waist that easily makes occupant and shoulder contacts.

In the 3rd embodiment, in described absorbing body 30 use polypropylene (PP) resins, mix the elastomer resin material of EP rubbers (EPR) and make, and form the hollow box body as pedestal by injection molded.As shown in Figure 20 to Figure 21, absorbing body 30 consists of with the sidewall 33 being connected with four limits of underside wall 32 underside wall 32 that is applied in load towards door skin 40 and while there is side impact.And, lower edge both sides at sidewall 33, be formed with arranging with flange 35 of extending towards outside, described setting with flange 35 is fixed on the resin core 21 of vehicle door interior trim panel main body 20 by methods such as ultrasonic welding, heatsealing, bonding are fixing, thereby vehicle door interior trim panel main body 20 and absorbing body 30 are formed as one.Described absorbing body 30 is the hollow box body structure of the cube shaped of length of side 100mm, towards four corners of the underside wall 32 of door skin 40 sides, is provided with corner cut portion 34, and according to these corner cut portions 34, the antagonistic force of initial stage while reducing side impact.And, also can adopt opening 31 towards door skin 40, underside wall 32, to anchor at the structure of vehicle door interior trim panel main body 20.And corner cut portion 34 can be omitted as required.

The 3rd embodiment is characterised in that, not only can effectively control impact absorbency, the especially antagonistic force of absorbing body 30, but also can expand the degree of freedom that position is set of absorbing body 30.; in the 3rd embodiment; as shown in figure 20; in order to make vehicle door interior trim panel main body 20 there is three-dimension effect; along product surrounding edge edge, towards door skin 40 sides, be formed with longitudinal wall flange part 17, and the position that arranges from the medial surface of described longitudinal wall flange part 17 towards absorbing body 30 is formed with the guiding rib 23 being integrally formed with resin core 21.Described guiding rib 23 is provided with the rake 23a of inclination at a predetermined angle, and as Figure 21 (a) with (b), the lower edge of the sidewall 33 of absorbing body 30 is provided with the slot part 334 for interlock across guiding rib 23.

At this, based on Figure 22, guiding rib 23 and interlock are described by the two principle of work of slot part 334.Figure 22 (a) is for representing generation side impact state before, and Figure 22 (b) is for representing to occur side impact state afterwards.; while there is side impact; be applied to the stress of absorbing body 30; after being first applied to underside wall 32, be delivered to sidewall 33; sidewall 33 is subject to diastrophic stress; but according to the 3rd embodiment; because interlock uses slot part 334 across guiding rib 23; thereby according to the angle of inclination of the rake 23a of guiding rib 23; sidewall 33 slides with the direction of arrow shown in Figure 22 (b); complete thus the interlocking between slot part 334 for guiding rib 23 and interlock, thereby absorbing body 30 can prevent from interfering with structure P.Described structure P, except the longitudinal wall flange part 17 arranging in order to make vehicle door interior trim panel 10 have three-dimension effect as described in above-described embodiment, can also be clamshell (not shown) or be located at Door Lock unit (not shown) of door skin etc. after car door pocket.

When being subject to impacting from vehicle outside because of reasons such as side impacts, the underside wall 32 of the absorbing body 30 contacting with door skin 40 is passed to sidewall 33 by stress.But as shown in figure 23, due to the interlock of sidewall 33, with slot part 334, the rake 23a along guiding rib 23 slides towards the direction of arrow, thereby do not occur bending and deformation with the state lower wall 33 that longitudinal wall flange part 17 interferes at absorbing body 30, thereby can not make because of interfering with longitudinal wall flange part 17 antagonistic force sharply become under large state, the antagonistic force while effectively controlling side impact.

; as shown in the diagram of curves of Figure 24; there is the side impact initial stage; interlock rake 23a slip along guiding rib 23 with slot part 334 due to sidewall 33; thereby as reduced the antagonistic force at initial stage shown in (A) in the diagram of curves of Figure 24, simultaneously as can reduce broken remnants shown in (B) in the diagram of curves of Figure 24.Therefore, compare the curve of conventional example shown in the dotted line of Figure 24, can reduce initial stage antagonistic force, and reduce broken remainingly etc., can effectively control the antagonistic force while there is side impact.

In addition, owing to can absorbing body 30 and longitudinal wall flange part 17 and other structures P not being interfered by controlling bending direction, thereby absorbing body 30 can be located at the position near these longitudinal wall flange parts 17 and other structures P.Therefore, can freely to the vehicle door interior trim panel 10 that comprises absorbing body 30, carry out styling design.

Figure 25 to Figure 28 is for representing the figure of the variation of the third embodiment of the present invention.As shown in Figure 25 (a), be located at the slot part 334 for interlock of lower edge of the sidewall 33 of absorbing body 30, be provided with almost parallel with the rake 23a of guiding rib 23 dip plane 334a.And then, because the interlock of sidewall 33 is provided with the dip plane 334a with guiding rib 23 moving contacts with slot part 334, thereby when there is side impact, as shown in Figure 25 (b), the slippage meeting of sidewall 33 becomes more smooth and easy, the antagonistic force at initial stage in the time of therefore further reducing side impact.

As shown in Figure 26, Figure 27, as not only reducing antagonistic force, and can at a point, increase the structure of antagonistic force, can adopt any place of guiding rib 23 rake 23a that the structure of recess 24 for braking is set,, from the state after side impact shown in the state before the side impact shown in Figure 27 (a) and Figure 27 (b), while there is side impact, if the underside wall 32 of absorbing body 30 is subject to load, sidewall 33 flexural deformations, now, with slot part 334, the rake 23a along guiding rib 23 slides in the interlock of sidewall 33.Now, because sidewall 33 is stuck in the braking that is arranged at guiding rib 23, with recess 24, be locked in this position, thereby bring out flexural deformation in not slidable situation, therefore at this position antagonistic force, will increase.Therefore the control method of, locating anywhere to increase antagonistic force is also feasible.

Figure 28 is for representing with wooden core 21a the figure as the resin core 21 of door body 20.When use is difficult to the vertical firmly material of strengthening rib, for example, while using wooden core 21a, use in addition resin support 50.With respect to the guiding rib 51 being uprightly located on described resin support 50, the interlock of sidewall 33 that makes to be located at absorbing body 30, so arranges absorbing body 30 and can obtain action effect same as the previously described embodiments across guiding rib 51 with slot part 334.

[embodiment tetra-]

Figure 29 to Figure 33 is for representing the figure of the fourth embodiment of the present invention, and applicable technical field is identical with the first embodiment to the three embodiment, that is, the back side that relates to the shock zone IA of vehicle door interior trim panel main body 20 is provided with the vehicle door interior trim panel 10 of absorbing body 30.Wherein, the block diagram that Figure 29 is the absorbing body that is located at vehicle door interior trim panel main body observed from the back side, Figure 30, Figure 31 are for representing described absorbing body to be located at respectively the cutaway view of the state of vehicle door interior trim panel main body, Figure 32 is for representing the instruction diagram of the state of described absorbing body before and after side impact, and Figure 33 is for representing the diagram of curves of the shock absorbing capability of the 4th embodiment.

In the 4th embodiment, the absorbing body 30 hollow box body structure for being made of resin, and absorbing body 30 is arranged at vehicle door interior trim panel main body 20 by arranging with flange 35, and this point is identical with the 3rd embodiment with the second embodiment.In the 4th embodiment, absorbing body 30 also uses the elastomer resin material that mixes EP rubbers (EPR) in polypropylene (PP) resin to make, and is configured as hollow box body shape according to injection molded.Described absorbing body consists of with the sidewall 33 being connected with four limits of underside wall 32 underside wall 32, and the lower edge both sides at sidewall 33, be formed with arranging with flange 35 adjacent to outside, and four corners of underside wall 32 are provided with corner cut portion 34, this point is identical with the structure of the second embodiment and the 3rd embodiment.And the 4th embodiment also can adopt opening 31 to anchor at the structure of vehicle door interior trim panel main body 20 towards door skin 40, underside wall 32.And, can omit corner cut portion 34 as required.

In the 4th embodiment, can only according to the shape of absorbing body 30, control bending direction.; although the lower end of sidewall 33 contacts with the back side of vehicle door interior trim panel main body 20; but prevent from when there is side impact interfering with the structure P near described absorbing body 30 extremely; form chamfering 334b inwards with the lower end of the sidewall 33a of structure P face-off, the same chamfering 334b forming inwards of sidewall 33b facing mutually with described sidewall 33a.And adjacent to sidewall 33c, the 33d of the sidewall 33a with structure P face-off, form respectively the chamfering 334c towards outside.

And then, when there is side impact, as shown in Figure 32 (a), the load that the underside wall 32 of absorbing body 30 is pressed down, now, with the lower end of the sidewall 33a of structure P face-off due to the chamfering 334b being formed with inwards, thereby make sidewall 33a towards direction of arrow distortion and described chamfering 334b overlapped mutually with vehicle door interior trim panel main body 20.And then as shown in Figure 32 (b), sidewall 33a, due to inwards flexural deformation, does not therefore interfere with structure P.And, as a reference, for sidewall 33b, 33c the sidewall 33a except with structure P face-off, 33d, as shown in dotted line in Figure 30, Figure 31, because sidewall 33 distortion make each chamfering 334b, 334c overlap with vehicle door interior trim panel main body 20, therefore can control bending direction to any direction in each inner side, outside.

The 4th embodiment is as shown in the diagram of curves of Figure 33, and P does not interfere with structure, and the antagonistic force at initial stage can be not excessive, thereby can obtain stable impact absorption state and desirable antagonistic force stroke curve.

[embodiment five]

Figure 34 to Figure 38 is for representing the figure of the fifth embodiment of the present invention, Figure 34 is the block diagram that expression is located at the absorbing body at the vehicle door interior trim panel main body back side, Figure 35 is for representing the cutaway view that structure is set of described absorbing body, and Figure 36 to Figure 38 is for representing according to the block diagram of the variation of the 5th embodiment and birds-eye view.In the 5th embodiment, automobile door internal decoration plate 10 comprises: form desired shape and as the vehicle door interior trim panel main body 20 of pedestal; Be located at the shock zone IA of described vehicle door interior trim panel main body 20, i.e. the absorbing body 30 in the exposed to contact region such as occupant's waist and shoulder.

And, in described absorbing body 30 use polypropylene (PP) resins, mix the elastomer resin material of EP rubbers (EPR) and make, and form the hollow box body as pedestal by injection molded.

Absorbing body 30 is as shown in Figure 34, Figure 35, towards vehicle door interior trim panel main body 20 sides, opening 31 is set, its opposition side installation surface is to the underside wall 32 of door skin 40, between opening 31 and underside wall 32, form four sides sidewall 33, four corners of underside wall 32 are provided with corner cut portion 34, adjust thus the antagonistic force while there is side impact, and in the both sides of opening 31, be formed with for being fixed to the arranging with flange 35 of vehicle door interior trim panel main body 20.In the 5th embodiment, supporting blade 25 is integrally formed with the resin core 21 of vehicle door interior trim panel main body 20, so that supporting blade 25 contacts with the sidewall 33 of absorbing body 30.The present embodiment five can adopt opening 31 to anchor at the structure in vehicle door interior trim panel main body 20 towards door skin 40, underside wall 32 equally.In addition, corner cut portion 34 can be omitted as required.

And then, when there is side impact, according to the load that is applied to absorbing body 30, during sidewall 33 flexural deformation, sidewall 33 can not slide along the back side of vehicle door interior trim panel main body 20, but according to the braking function of supporting blade 25, can effectively adjust the antagonistic force while being hit load.

In the 5th embodiment, for the sidewall 33 of absorbing body 30, at left and right sides, form respectively 3 row supporting blades 25, but as Figure 36, can 3 row supporting blades 25 be formed as one by connecting strap 26, strengthen thus the intensity of supporting blade 25.And also can the setting position of supporting blade 25 be changed to 1 row or 2 row as shown in Figure 37, Figure 38.

[embodiment six]

Figure 39 to Figure 43 is for representing the figure of the sixth embodiment of the present invention, Figure 39 is for representing the section-drawing of automobile door internal decoration plate, Figure 40 is the block diagram that expression is installed on the absorbing body of described automobile door internal decoration plate, Figure 41 is the instruction diagram of the shape of the triangle rib of the described absorbing body of expression, Figure 42 is subject to the instruction diagram of the state of impact load from different directions for representing described absorbing body, and Figure 43 is for representing the diagram of curves of the side impact performance test results of the absorbing body shown in Figure 42.

In the 6th embodiment, automobile door internal decoration plate 10 is by forming desired shape and as the vehicle door interior trim panel main body 20 of pedestal be located at the shock zone IA of described vehicle door interior trim panel main body 20, absorbing body 30 compositions in the region that the positions such as the waist that easily makes occupant and shoulder contacts.

At the present embodiment, in described absorbing body 30 use polypropylene (PP) resins, mix the elastomer resin material of EP rubbers (EPR) and make, and form the hollow box body as pedestal by injection molded.And, absorbing body 30 is as shown in Figure 39, Figure 40, towards vehicle door interior trim panel main body 20 1 sides, be provided with opening 31, in the symmetrical position of edge part of opening 31, be provided with by ultrasonic be welded and fixed, heatsealing is fixed, it is fixing to bond or other mechanical methods such as fixing are fixed on arranging with flange 35 in vehicle door interior trim panel main body 20.At the opposition side of described opening 31, towards door skin 40 1 sides, be provided with underside wall 32, and the space between opening 31 and underside wall 32 is formed with four sides sidewall 33.And it is benchmark profile that described absorbing body 30 be take the cube shaped that the length of side is 100mm.And, in the 6th embodiment, also can adopt opening 31 towards door skin 40, underside wall 32, to anchor at the structure of vehicle door interior trim panel main body 20.

And according to the absorbing body 30 of the 6th embodiment, the initial stage antagonistic force value while being subject to impact load in order to suppress side impact occurs, can arrange corner cut portion 34 in four corners of underside wall 32.And, can control initial stage antagonistic force value by adjusting the size of described corner cut portion 34.And the present embodiment is characterised in that, when described absorbing body 30 is subject to impacting, even if be subject to the impact of different directions, also can guarantee sufficient shock absorbing capability.That is, at the inside face of absorbing body 30, the inside face from the inside face of underside wall 32 to sidewall 33 specifically, the direction intersecting vertically along the crest line with as shown in symbol A in Figure 40 forms triangle rib 36.And each limit has three triangle ribs 36 in the present embodiment, and it is relatively large to be positioned at the size of central triangle rib 361, and it is relatively little to be positioned at the size of triangle rib 362 of left and right sides, and the quantity of triangle rib 36 can be done suitable change.The size of described triangle rib 36 and shape are as shown in figure 41, when considering energy absorption, preferably the height of triangle rib 36 (representing with y in figure) is made as absorbing body 30 height 50%～80%, the base of triangle rib 36 (representing with x in figure) be made as absorbing body 30 width dimensions 10%～40%, the angle [alpha] of triangle rib 36 is made as 20 °～45 °.And, due to a larger triangle rib 361 being set at center, in its both sides, be arranged side by side less triangle rib 362, thereby in the situation that positive antagonistic force can excessively not rise, for the impact from different directions, can improve the discrete of antagonistic force, for the antagonistic force applying from front, also prevent excessive rising, obtain thus good energy absorption simultaneously.

As shown in figure 42, utilize 100 pairs of above-mentioned absorbing bodies 30 of impactor to apply respectively direction for frontal, 20 ° of direction of tilt, the impact load of 45 ° of direction of tilt and carry out side impact performance test, the graphical representation of Figure 43 for its result.Known according to the diagram of curves of Figure 43, by strengthening triangle rib 36, for the impact load of different directions, the antagonistic force of rear half stage has been enhanced 1.5KN.So, according to the reinforcing of triangle rib 36, can improve the corresponding antagonistic force of angle discrete that absorbing body 30 is subject to impact load, even vehicle door interior trim panel 10 deforms and the situation that contacts human body also can be dealt with in actual vehicle trials, for the impact of different directions, can absorb fully energy.

[embodiment seven]

Figure 44 to Figure 46 is for representing the figure of the seventh embodiment of the present invention, Figure 44 is for representing the section-drawing of automobile door internal decoration plate, Figure 45 is for representing to be located at the block diagram of the absorbing body of described automobile door internal decoration plate, and Figure 46 is for representing the diagram of curves of the correlationship of antagonistic force that described absorbing body produces when there is side impact and intrusion amount.

At the 7th embodiment, automobile door internal decoration plate 10 is by forming desired shape and as the vehicle door interior trim panel main body 20 of pedestal be located at the shock zone IA of described vehicle door interior trim panel main body 20, absorbing body 30 compositions in the region that the positions such as the waist that easily makes occupant and shoulder contacts.

At the 7th embodiment, the described elastomer resin material that mixes EP rubbers (EPR) for absorbing body in polypropylene (PP) resin is made, and forms the hollow box body as pedestal by injection molded.And, absorbing body 30 is as shown in Figure 44, Figure 45, towards vehicle door interior trim panel main body 20 1 sides, be provided with opening 31, the edge part of described opening 31 symmetrically arrange by ultrasonic be welded and fixed, heatsealing is fixed, it is fixing to bond or other mechanical methods such as fixing are fixed on arranging with flange 35 in vehicle door interior trim panel main body 20.And, at the opposition side of described opening 31, in the side towards door skin 40, be provided with underside wall 32, and the space between opening 31 and underside wall 32 is formed with four sides sidewall 33.And it is benchmark profile that described absorbing body 30 be take the cube shaped that the length of side is 100mm.And the initial stage antagonistic force while being subject to impact load in order suppressing side impact occurs to be too high, in four corners of the underside wall 32 of absorbing body 30, to be provided with corner cut portion 34, and to control initial stage antagonistic force value according to the size of adjusting described corner cut portion 34.And the 7th embodiment, also can adopt opening 31 to anchor at the structure in vehicle door interior trim panel main body 20 towards door skin 40, underside wall 32.In addition, corner cut portion 34 can be omitted as required.

The 7th embodiment is characterised in that: shock absorbing capability when raising absorbing body 30 is subject to impacting, the antagonistic force of the rear half stage while especially suppressing to be subject to impact load excessively reduces phenomenon.; inside face at absorbing body 30 underside walls 32 is given prominence to tabular interior side rib 321 is set towards opening 31; and about interval 1～5mm between described interior side rib 321 and sidewall 33, in 10%～90% scope of the high height at absorbing body 30 of rib of described interior side rib 321.Because the height of absorbing body 30 in the 7th embodiment is made as 100mm, thereby in the high scope that is located at 10mm～90mm of the rib of interior side rib 321.At this, described interior side rib 321 is not with the reason that sidewall 33 is connected, when connecting, it is excessive that the antagonistic force of rear half stage can become.And the reason that makes both interval be made as 1～5mm is, because consider the problem of molding.

The diagram of curves of shock absorbing capability when Figure 46 is used the absorbing body 30 shown in Figure 45 for expression.Corresponding to the thickness of the interior side rib 321 of described diagram of curves, highly, width dimensions is made as respectively 2.5mm * 40mm * 50mm.

And then, known according to the diagram of curves of Figure 46, absorbing body 30 is owing to being formed with corner cut portion 34 in four corners, initial stage antagonistic force value can be suppressed for smaller value, simultaneously, than the conventional example (curve dotting) that interior side rib 321 is not set, the antagonistic force of the rear half stage while being subject to impact load in the 7th embodiment (curve representing with solid line) is enhanced.Therefore, even if having lower limit, expected value also can be suitable for.

[embodiment eight]

Figure 47 to Figure 50 is for representing the figure of the eighth embodiment of the present invention, Figure 47 is for representing to be located at the absorbing body at the vehicle door interior trim panel main body back side and the block diagram that impact absorption is used rib, Figure 48 is for representing to be located at the absorbing body at the vehicle door interior trim panel main body back side and the cutaway view that impact absorption is used rib, Figure 49, Figure 50 are for representing according to the figure of the variation of the eighth embodiment of the present invention, and it is respectively and represents to be located at the absorbing body at the vehicle door interior trim panel main body back side and block diagram and the cutaway view that impact absorption is used rib.

In the 8th embodiment, automobile door internal decoration plate 10 is by forming desired shape and as the vehicle door interior trim panel main body 20 of pedestal be located at the shock zone IA of described vehicle door interior trim panel main body 20, absorbing body 30 compositions in the region that the positions such as the waist that easily makes occupant and shoulder contacts.

In the 8th embodiment, consider that occupant's build is poor, there is deviation in the front stall position of women and general adult male, for corresponding the problems referred to above, should increase along vehicle fore-and-aft direction the amplitude of shock zone IA.; absorbing body 30 as described in use in each embodiment; be one side and be provided with the hollow box body shape of opening 31, but the back side along vehicle door interior trim panel main body 20 is integrally formed the connecting panel 371 extending towards outside in the opening edge edge of the sidewall 33 of absorbing body 30.And the front end of described connecting panel 371 is uprightly formed with the rib 37 for impact absorption extending towards door skin 40 sides.And described impact absorption forms reinforcing rib 372 with the both sides of rib 37, corner part forms corner cut portion 373.

At the 8th embodiment, impact absorber 30 is additional arranges rib 37 for impact absorption, and as shown in figure 48, along the fore-and-aft direction increase shock zone IA of vehicle, for the occupant from the forward little girl of seat position to general adult male, impact-absorbing load effectively when there is side impact.

In the 8th embodiment, by connecting panel 371, the absorbing body as hollow box body 30 and impact absorption is integrated with rib 37, thereby the shock zone IA of wider range can be set along the fore-and-aft direction of vehicle, and can make the absorbing body 30 that is hollow box body shape there is succinct structure, even if therefore door skin 40 has been set with the part that protrudes from vehicle door interior trim panel 10 sides in moulding, as long as add to consider absorbing body 30, connecting panel 371, the concaveconvex shape that impact absorption forms with rib 37 threes, just can effectively prevent the interference with door skin 40.And, when absorbing body 30 is affixed in vehicle door interior trim panel main body 20, also can adopt the opening 31 of absorbing body 30 towards door skin 40, underside wall 32, to anchor at the structure of vehicle door interior trim panel main body 20.And the corner cut portion 34 of absorbing body 30 can be omitted as required.

As shown in Figure 49, Figure 50, impact absorber 30, can change the setting position of the reinforcing rib 372 between rib 37 for sidewall 33 and impact absorption, and the front end of rib 37 for impact absorption, can form the front end boss 374 of the load that effectively withstands shocks, and its shape can be done suitable change.

[utilizing possibility] in industry

In the various embodiments described above, absorbing body 30 is located at vehicle door interior trim panel main body 20 occupant's waist the easy shock zone IA of contact position, but can be located at the exposed to contact position of occupant's shoulder institute etc., the present invention does not limit the setting position of absorbing body 30 yet.And vehicle door interior trim panel main body 20, except resin core, also can be used the various materials such as wooden core.And as the material of absorbing body 30, although used in the above-described embodiments the material that adds elastic body composition in synthetic resin, the present invention is not limited to above-mentioned material, so long as resin material just can be done suitable change.

Claims (6)

1. an in-built component for automobile, system is installed on the in-built component for automobile of vehicle side panel (40) indoor, the absorbing body (30) that is easily made occupant's waist or shock zone (IA) that shoulder position contacts by the trim panel main body (20) as pedestal when for side impact and be arranged at trim panel main body (20) back side forms, and it is characterized in that:

The side that described absorbing body (30) is formed from a resin is provided with the hollow box body that opening (31), opposite side be provided with underside wall (32) and forms, and when making described underside wall (32) be located at trim panel main body (20) towards side panel (40), being provided with impact absorber (30) self carries out cutting process and is located at the unit that the corner cut portion (34) in absorbing body (30) underside wall (32) corner and the antagonistic force when making side impact increase and is formed on the chamfered section (333) of absorbing body (30) sidewall (33) corner part

Described corner cut portion (34) forms the form of cutting described underside wall (32) in the corner of described underside wall (32) and forming these three positions of two sidewalls (33) of described absorbing body (30).

2. in-built component for automobile according to claim 1, it is characterized in that described absorbing body (30) also forms slot part (334) for interlock at the sidewall (33) of absorbing body (30), the back side of described trim panel main body (20) forms the guiding rib (23) with rake (23a) in addition, and that described guiding rib (23) is contained in is described for interlock in slot part (334), when when there is side impact, impact absorber (30) applies impact load, when controlling bending direction by interlock slot part (334) along rake (23a) moving contact of guiding rib (23), impel absorbing body (30) to occur bending and deformation.

3. in-built component for automobile according to claim 1, it is characterized in that in described absorbing body (30), the outside face of described absorbing body (30) sidewall (33) contacts with the supporting blade (25) that is located at described trim panel main body (20) back side.

4. in-built component for automobile according to claim 1, it is characterized in that described absorbing body (30) is also formed with triangle rib (36) in described absorbing body (30) inner side from underside wall (32) to sidewall (33), sidewall (33) the excessive deflection distortion causing with the impact limiting due to different directions.

5. in-built component for automobile according to claim 1, it is characterized in that described absorbing body (30) is also uprightly provided with the interior side rib (321) extending towards opening (31) side from maintaining interval between the inside face of described absorbing body (30) underside wall (32) and sidewall (33), the antagonistic force of rear half stage reduction while suppressing side impact for the rigidity by described interior side rib (321).

6. in-built component for automobile according to claim 1, it is characterized in that the sidewall (33) that described absorbing body (30) is also positioned at lateral location from the four sides sidewall (33) of described absorbing body (30) extends to form connecting panel (371) along trim panel main body (20) back side towards outside, and set up by described connecting panel (371) towards the upright rib for impact absorption (37) of side panel (40) side, for absorbing body (30) described in when there is side impact, together with rib for impact absorption (37), all occur bending and deformation, thereby the region along longitudinal expansion of vehicle as shock zone (IA).