CN101186198A - Interior member having an airbag door section for use in vehicles, and its molding method - Google Patents
Interior member having an airbag door section for use in vehicles, and its molding method Download PDFInfo
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- CN101186198A CN101186198A CNA2007101823985A CN200710182398A CN101186198A CN 101186198 A CN101186198 A CN 101186198A CN A2007101823985 A CNA2007101823985 A CN A2007101823985A CN 200710182398 A CN200710182398 A CN 200710182398A CN 101186198 A CN101186198 A CN 101186198A
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- airbag door
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- fracture portion
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Abstract
The invention relates to a vehicle interior trim element with an air bag door section (20) and a molding method thereof, which is characterized in that a resin flowing boundary (25) is set in a core back moving area of a fracture part (24) presented when the air bag door section (20) is expanded, the closing thread of the fracture part (24) is not visible from the surface. Thus, even the he air bag door section of the vehicle interior trim element and the main body are manufactured with same resins, appearance surface quality is not affected, and the fracture force of a fracture part in the air bag section can be reduced to a desired point.
Description
Background technology
At present, a kind of instrument carrier panel with air bag doors is disclosed, door trim decorations, the structure of INT COMP such as the vehicle of centre strut etc. known Japanese kokai publication hei-8-192666 number.
In the instrument carrier panel that this communique disclosed with air bag doors, have the body of air bag doors with the thermoplastic base resin injection molded with the instrument carrier panel of opening, afterwards, with themoplasticity neoprene injection molded airbag door section (peristome), carry out so-called double-colored shaping (biserial injection molded), form the body and the airbag door section of instrument carrier panel.Usually the structure of instrument carrier panel is the structure of back dress split air bag doors (by the product behind the themoplasticity neoprene injection molded) known to.
Yet, in the instrument carrier panel of such band airbag door section, because the resin at airbag door section is identical with the body resin, when promptly using identical resin to constitute instrument carrier panel integral body, aspect the characteristic of body resin, the spring rate of body resin should be air bag doors resin (TPO) 6-7 doubly, pulling strengrth should be 1.5 times-2 times, so being formed on breaking force that form on the airbag door section, when launching, for example H shape broken part (fracture portion) increases when thickness is identical, airbag door section launches difficulty, and hinge also has damaged possibility upon deployment.In order to improve this phenomenon, if make the resin thickness of broken part too thin, wall is too thin when taking place to be shaped so easily, and bulging is sunk and distortion.Particularly for the hard resin instrument carrier panel,, therefore cause the appearance quality to descend because because of the welding burr, ripple etc. can see that from the appearance side thinner wall section periphery has concavo-convex body.
Under the state of the periphery (hidden) of crackle and airbag door section that cannot see broken part from the appearance side fully, when being arranged, a kind of the shaping make the wall thickening of broken part, by back processing it is cut thin method.But in the method, crackle that cannot see broken part for the breaking force of keeping regulation again is very difficult.Promptly,, can not guarantee the appearance quality, can not make resin thickness enough thin even the processing wave groove still can be seen the crackle of broken part and the sense that rises and falls from the appearance side when the resin thickness attenuation.
If the destructive force of the broken part (fracture portion) when being formed on the expansion on the airbag door section increases, air bag doors is launched the difficulty that also just becomes, in order to improve this situation, if make the resin thickness of fracture portion thin excessively, then because can see thinner wall section from the appearance side, so reducing such problem, the appearance quality under following situation, also can take place, this situation refers to form air bag doors and instrument carrier panel with different resins with double-colored forming process, the door trim decorations, the vehicle INT COMP of the body of INT COMP such as the vehicle of centre strut etc., and form respectively after the body of air bag doors and instrument carrier panel, utilize engaged claw and pin etc. to form the fracture portion of the vehicle of one again with INT COMP.
As relating to technology of the present invention, Japanese kokai publication hei 3-281457 communique and 7-179161 communique relate to the instrument carrier panel with the door foaming, but have concentrated stress on expand initial stage foaming layer and top layer; Japanese kokai publication hei 2-147452 communique relates to back dress resin gate, has formed welding bead along the door crack; Japanese kokai publication hei 5-185898 communique relates to the instrument carrier panel with the door foaming, inserts front end on door iron plate and establishes cutting edge; Japanese kokai publication hei 7-291078 communique relates to door and the integrally formed hard instrument carrier panel of instrument carrier panel, and it has taked enhancement measures on hinge; Japanese kokai publication hei 8-290749 communique relates to a base-material and the integrally formed top layer instrument carrier panel of instrument carrier panel base-material, and it has taked enhancement measures on hinge; Japanese kokai publication hei 2-283546 communique has disclosed the rib that forms the effect maximum shear stress in the fracture portion of split door; Japanese kokai publication hei 2-109848 communique relates to a kind of cover, round being formed the thin-walled bar by peristome, establishes weld seam on this thin-walled bar on resin bed; Japanese kokai publication hei 7-291078 communique discloses that heat is coated with reinforcing material on the door inside face of resin instrument carrier panel, forms the technology of notch on the line of the crack of door; Japanese kokai publication hei 8-20040 communique discloses with separating core separation mold cavity and has injected different chromoresins, is just annotating back travelling backwards core.
Summary of the invention
Consider the above-mentioned fact, the object of the present invention is to provide a kind of vehicle INT COMP, this vehicle has under the situation of the airbag door section of using INT COMP with identical resin formation vehicle and body with INT COMP, neither influence the appearance quality, can make the destructive force of the broken part of air bag doors drop to the air bag doors of desired value again.
The first embodiment of the present invention have the fracture portion that is formed on the airbag door section and when air sac bag body launches, make the airbag door section both sides of the central portion that clips above-mentioned fracture portion or a side on turn on turn over parts.
Therefore, when air sac bag body launches, concentrate on fracture portion centre, successfully rupture from central authorities of fracture portion from the impact load of air sac bag body.Even the result is that the thickness of fracture portion is thicker, also can easily rupture, therefore launch performance and appearance quality (invisibility) all can improve.Because fracture portion breaks earlier, so can alleviate the burden at the hinge place of airbag door section.And because available high rigidity hard material constitutes airbag door section, sense and distortion therefore can also prevent to rise and fall.
The second embodiment of the present invention has the fracture portion that is formed on the airbag door section; With
Be configured in airbag door section below, from the hinge of airbag door section to the high door hinge fender of the side-prominent destructive force of fracture portion.
Thereby, owing to be provided with the door hinge fender, therefore prevented when air sac bag body launches, the hinge of air sac bag body direct contact airbag door section, air sac bag body can not cause damage to the hinge of airbag door section.Since can protect the hinge of airbag door section, therefore can be from the low relatively fracture portion fracture of intensity.
The third embodiment of the present invention is to set the resin flows border in the core travelling backwards zone of the fracture portion when forming airbag door section and launch, and cannot see the suture of fracture portion from the appearance side.
Thereby,, therefore can make breaking force drop to desired value by the strength degradation that cause on the resin flows border because the resin flows border is set in the core travelling backwards zone of the fracture portion when forming the airbag door section expansion.In addition,,, can prevent that the appearance quality from descending, can improve heat aging property simultaneously, and the supporting of airbag door section single-piece and surface rigidity all are improved so cannot see the suture of fracture portion fully from the appearance side because the resin thickness that needn't make fracture place as thin as a wafer.
The fourth embodiment of the present invention is on the basis of first embodiment, turns over parts on above-mentioned and be the central portion that clips above-mentioned fracture portion, is arranged on the both sides of above-mentioned airbag door section or the side integratedly and outstanding projection downwards with above-mentioned airbag door section.
Thereby, when air sac bag body launches from air sac bag body to the projection effect impact lotus of moment, rupture smoothly from the central portion of fracture portion.Owing to adopted outstanding simple structure only is set on airbag door section, therefore can improve the appearance quality and launch performance.
The fifth embodiment of the present invention is on the basis of first embodiment, turning over parts on above-mentioned is metal sheets, described metal sheet is configured in the below of above-mentioned airbag door section, when air sac bag body launches, clip above-mentioned fracture portion, below leading section that the both sides or a side of above-mentioned airbag door section contact and above in have projection on the one side at least.
Thereby, when air sac bag body launches, on the impact load of air sac bag body the former thereby concentrated central portion that acts on fracture portion, rupture smoothly from the central portion of fracture portion because of metal sheet.Consequently can improve the appearance quality and launch performance.In addition, because of using metal sheet, applicable to existing vehicle INT COMP.
The sixth embodiment of the present invention is on the basis of first embodiment, turning over parts on above-mentioned is metal sheets, described metal sheet is configured in the below of above-mentioned airbag door section, when air sac bag body launches, clip above-mentioned fracture portion, with have projection in a narrow margin above the leading section that the both sides or a side of above-mentioned airbag door section contact.
Thereby, when air sac bag body launches, on the impact load of air sac bag body the former thereby concentrated central portion that acts on fracture portion, rupture smoothly from the central portion of fracture portion because of metal sheet.At this moment because narrow projection is set on the leading section of metal sheet, even therefore when the initial stage of expansion the upper surface of air sac bag body be concaveconvex shape, also can be positively from the central portion fracture of fracture portion.
The seventh embodiment of the present invention is on the basis of first embodiment, turning over protrusion member on above-mentioned is metal sheet, described metal sheet is configured in the below of above-mentioned airbag door section, when launching, air sac bag body clips above-mentioned fracture portion, has the leading section that contacts with the both sides or a side of above-mentioned airbag door section, when the hinge of above-mentioned metal sheet is partial to above-mentioned fracture portion side from the hinge of above-mentioned airbag door section, the fixed part of above-mentioned metal sheet and from the hinge of above-mentioned metal sheet near the rigidity at the position of fracture portion side rigidity height than the hinge of above-mentioned metal sheet.
Thereby, when air sac bag body launches, on the impact load of air sac bag body the former thereby concentrated central portion that acts on fracture portion, rupture smoothly from the central portion of fracture portion because of metal sheet.Consequently can improve the appearance quality and launch performance.In addition, because the hinge of air sac bag body direct contact airbag door section when having prevented that by metal sheet air sac bag body from launching, air sac bag body can not cause damage to the hinge of airbag door section.
The eighth embodiment of the present invention is on the basis of first embodiment, the hinge of above-mentioned airbag door section and shell filling portion form in abutting connection with ground, on the width of the front and back of whole regulation, become the thin-walled portion of regulation plate thickness, and become the groove of point of inflection midway location being provided with of the front and back of this thin-walled portion width.
Thereby, because the local sheetage (percentage of elongation on surface) that point of inflection away from the shell filling portion of the thickness of slab sudden turn of events, therefore can make bending cause diminishes.And, owing to form groove, therefore shortened the unfolded surface length of sweep, because actual sheetage is diminished, so the hinge breakage that the bending can prevent effectively that air sac bag body from launching the time causes at the point of inflection place as far as possible.
The ninth embodiment of the present invention is on the basis of first embodiment, and airbag door section forms with identical hard resin material one or split ground with body.
Thereby, under the situation that airbag door section and body form with identical hard resin material one or split ground, when air sac bag body launches, hit to load from the portion of air sac bag body and concentrate on central authorities of fracture portion, can successfully break from fracture portion.Even the result is that the plate thickness at fracture portion place is thicker, also can rupture easily, therefore can improve and launch performance and appearance quality (invisibility).Because fracture portion is fracture earlier, so alleviate the burden of the hinge of airbag door section.In addition, owing to constitute airbag door section, therefore also can prevent to rise and fall and distortion with high rigidity hard material.
The tenth embodiment of the present invention is on the basis of first embodiment, airbag door section is to make one or split by identical hard resin material with body, is shaped or pastes the surface that manufacturing process covers these base materials by inserting with the top layer of band fracture common or split portion.
Thereby the impact load from air sac bag body when air sac bag body launches concentrates on central authorities of fracture portion, successfully ruptures in the base material and the top layer of airbag door section.Even the result is because the thickness of slab of the fracture portion of the basic stack of airbag door section thickens, also fracture easily is so can suppress to launch performance and the appearance quality decline (the welding burr of base material and corrugated concavo-convex) of duplicating on the top layer simultaneously.Owing to constitute with high rigid resin, can prevent also that therefore bulging from sinking and distortion.Airbag door section and body, are being compared with double-colored shaping when integrally formed with identical hard resin material, and the formation of unnecessary complexity is also unnecessaryly carried out back processing to base material.
The 11st embodiment of the present invention is on the basis of first embodiment, airbag door section and body integrally formed or split shaping with identical matter resin material, the top layer of on the surface of these base materials, foam integratedly band foaming layer common or split and band fracture portion.
Thereby the impact load from air sac bag body when air sac bag body launches concentrates on central authorities of fracture portion, the base material of airbag door section, and successfully rupture in foaming layer and top layer.Even the result is because the thickness of slab of the fracture portion of the base material of air bag doors thickens, also fracture is easily crossed thin phenomenon so can improve the wall that occurs when launching performance and preventing to be shaped.Owing to constitute with high rigidity hard resin material, so incident fluctuating sense such as heat-resisting evaluation can not occur the time.
The 12nd embodiment of the present invention is on the basis of the 3rd embodiment, forms body and the airbag door section of the vehicle of one or split with INT COMP with identical resin injection moulding.
Thereby in the core travelling backwards zone of the fracture portion when forming the airbag door section expansion by the resin flows border is set in, just the strength degradation that can utilize the resin flows border to cause makes the breaking force of fracture portion drop to the value of expectation.Because the resin thickness that needn't make fracture portion as thin as a wafer,, when can prevent that the appearance quality from descending, improved ageing-resistant performance, and improved support of air bag doors single-piece and surface rigidity so cannot see the crack line of fracture portion fully from the appearance side.Under the situation with integrally formed airbag door section of identical resin and body, 2 kinds of materials of unnecessary usefulness spray with INT COMP vehicle, thus but cost-cutting.
The 13rd embodiment of the present invention is on the basis of the 3rd embodiment, and vehicle has with different resins with the integrally formed airbag door section of double-colored forming process with airbag door section with the body of INT COMP.
Thereby, use in the INT COMP at the vehicle of one airbag door section with double-colored shaping, in the core travelling backwards zone of the fracture portion when forming the airbag door section expansion by the resin flows border is set in, just the strength degradation that can utilize the resin flows border to cause makes the breaking force of fracture portion drop to the value of expectation.Because the resin thickness that needn't make fracture portion as thin as a wafer,, when can prevent that the appearance quality from descending, improved ageing-resistant performance, and improved support of airbag door section single-piece and surface rigidity so cannot see the crack line of fracture portion fully from the appearance side.
The 14th embodiment of the present invention is on the basis of the 3rd embodiment, vehicle one or split is made with identical resin injection molded with airbag door section with the body of the base material of INT COMP, and this base material has the airbag door section by the top layer covering of band fracture portion or non-cracking portion.
Thereby, has the so-called top layer insertion that base material is covered by the top layer with fracture portion or non-cracking portion, the vehicle of the airbag door section of top layer adhesive type is with in the INT COMP, in the core travelling backwards zone of the fracture portion when forming the airbag door section expansion by the resin flows border is set in, just the strength degradation that can utilize the resin flows border to cause makes the breaking force of fracture portion drop to the value of expectation.Because the resin thickness that needn't make fracture portion as thin as a wafer,, improved ageing-resistant performance, and improved support of airbag door section single-piece and surface rigidity so can prevent to duplicate when appearance quality on the top layer descends.
The 15th embodiment of the present invention is on the basis of the mat woven of fine bamboo strips 3 embodiment, vehicle one or split is injection molded with identical resin with airbag door section with the body of the base material of INT COMP, this base material is covered by the top layer of band fracture portion, forms foaming layer between this top layer and above-mentioned base material.
Thereby, has base material by the top layer covering of band fracture portion, the vehicle that forms the so-called foaming type airbag door section of foaming layer between top layer and base material is used in the INT COMP, in the core travelling backwards zone of the fracture portion when forming the airbag door section expansion by the resin flows border is set in, just the strength degradation that can utilize the resin flows border to cause makes the breaking force of fracture portion drop to the value of expectation.Because the resin thickness that needn't make fracture portion as thin as a wafer, so the thin excessively danger of the wall can prevent to be shaped the time time, improved ageing-resistant performance, and improved support of airbag door section single-piece and surface rigidity.
The 16th embodiment of the present invention is on the basis of the 3rd embodiment, by making front end slide core triangular in shape come close to or in contact with fixed mould, by the disconnected cavity of breaking portion, each cavity to disjunction under this state injects resin, makes above-mentioned slide core do to retreat in a small amount before and after sand off.
Thereby, with such straightforward procedure, promptly by means of front end slide core triangular in shape, come the cavity of disjunction airbag door section, under this state, inject resin to each cavity, make slide core do to retreat in a small amount under the condition before and after resin fill finishes, just can set the resin flows border in the fracture portion when airbag door section launches.Consequently, form this so can be lowered into because can use existing former.In addition, because method is simple, thus guaranteeing under the prerequisite of quality, the reliability height, and capacity rating is also high.
The 17th embodiment of the present invention is on the basis of the 16th embodiment, and by making up the pressurize of above-mentioned sand off front and back, the wall thickness of core travelling backwards time and fracture portion periphery is controlled the disruption characteristic of fracture portion.
Thereby by the pressurize of combination before and after the sand off, core travelling backwards time and fracture portion limit wall thickness just can be easily and accurately the disruption characteristic of fracture portion is controlled to be desired value.
The 18th embodiment of the present invention is on the basis of the 17 embodiment, and above-mentioned core travelling backwards time set is after above-mentioned sand off.
Thereby, if the core travelling backwards time passes early than sand off, then the resin of first filling flows in the space of not filling side, the resin flows border can be departed from by the predetermined fracture location of slide core, relatively, in the present invention, owing to content in conjunction with claim 6 record, core travelling backwards time set after sand off, therefore just can be prevented resin flows border and the dislocation of fracture reservations.
The 19th embodiment of the present invention is on the basis of the 18 embodiment, after above-mentioned sand off the decompression carry out pressurize, the pressurize after the above-mentioned sand off is divided into several stages, with above-mentioned core travelling backwards time set after second packing stage.
Thereby, since with core travelling backwards time set after second packing stage, and because positively carry out the pressurize of F/s, thus weight that can stable formation product, size and shape, the fraction defect of reduction goods.
The 20th embodiment of the present invention have the fracture portion that is formed on the airbag door section and when air sac bag body launches, make turn on the both sides of the airbag door section that clips above-mentioned fracture portion central portion or the side on turn over parts, on the core travelling backwards zone of the above-mentioned fracture of formation portion, set the resin flows border, therefore cannot see the suture of fracture portion from the appearance side.
Thereby, turn over parts by on being provided with, when air sac bag body launches, concentrate on central authorities of fracture portion from the impact load of air sac bag body.In addition, the core travelling backwards zone of the fracture portion when forming the air bag doors expansion by the resin flows border is set in, just the strength degradation that can utilize the resin flows border to cause makes the breaking force of fracture portion drop to desired value.The result can guarantee to launch performance and appearance quality (invisibility).
The accompanying drawing summary
Fig. 1 is the amplification profile diagram along the 1-1 line of Fig. 3,
Fig. 2 illustrates the Zoom Side cross sectional drawing of the vehicle of the airbag door section with first embodiment of the invention with the INT COMP main portion,
Fig. 3 is from showing the transparent view of seeing with the oblique rear of vehicle of the instrument carrier panel of INT COMP as vehicle of airbag door section with first embodiment of the invention,
Fig. 4 illustrates the amplification view of the vehicle of the airbag door section with first embodiment of the invention with the projection of INT COMP,
Fig. 5 illustrates the amplification view of the vehicle of the airbag door section with first embodiment of the invention variation with the projection of INT COMP,
Fig. 6 A is a vehicle that the airbag door section with first embodiment of the invention variation is shown with the simplified diagram of the position relation of the projection of INT COMP and fracture portion,
Fig. 6 B is a vehicle that the airbag door section with first embodiment of the invention variation is shown with the simplified diagram of the position relation of the projection of INT COMP and fracture portion,
Fig. 6 C is a vehicle that the airbag door section with first embodiment of the invention variation is shown with the simplified diagram of the position relation of the projection of INT COMP and fracture portion,
Fig. 6 D is a vehicle that the airbag door section with first embodiment of the invention variation is shown with the simplified diagram of the position relation of the projection of INT COMP and fracture portion.
Fig. 6 E is a vehicle that the airbag door section with first embodiment of the invention variation is shown with the simplified diagram of the position relation of the projection of INT COMP and fracture portion,
Fig. 7 be vehicle that the airbag door section with second embodiment of the invention is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Fig. 8 illustrates the Action Specification figure of the vehicle of the airbag door section with second embodiment of the invention with INT COMP,
Fig. 9 illustrates the planar view of the vehicle of the airbag door section with second embodiment of the invention with the metal sheet of INT COMP,
Figure 10 be vehicle that the airbag door section with second embodiment of the invention variation is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 8,
Figure 11 illustrates the planar view of the vehicle of the airbag door section with second embodiment of the invention variation with the metal sheet of INT COMP,
Figure 12 be vehicle that the airbag door section with third embodiment of the invention is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Figure 13 illustrates the Action Specification figure of the vehicle of the airbag door section with third embodiment of the invention with INT COMP,
Figure 14 be vehicle that the airbag door section with third embodiment of the invention variation is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Figure 15 be vehicle that the airbag door section with fourth embodiment of the invention is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Figure 16 be vehicle that the airbag door section with fifth embodiment of the invention is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Figure 17 A show vehicle with airbag door section of the present invention with INT COMP insert the cross-sectional side view on the top layer that forming process forms with the top layer,
Figure 17 B show vehicle with airbag door section of the present invention with INT COMP insert the cross-sectional side view on the top layer that forming process forms with the top layer,
Figure 17 C show vehicle with airbag door section of the present invention with INT COMP insert the cross-sectional side view on the top layer that forming process forms with the top layer,
Figure 18 A show vehicle with airbag door section of the present invention with INT COMP paste the cross-sectional side view on the top layer that forming process forms with the top layer,
Figure 18 B show vehicle with airbag door section of the present invention with INT COMP paste the cross-sectional side view on the top layer that forming process forms with the top layer,
Figure 19 be vehicle that the airbag door section with sixth embodiment of the invention is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Figure 20 be vehicle that the airbag door section with seventh embodiment of the invention is shown with INT COMP, with the cooresponding cross-sectional side view of Fig. 1,
Figure 21 illustrates the cross-sectional side view of the vehicle of the airbag door section with seventh embodiment of the invention with INT COMP,
Figure 22 illustrates the amplification view of the vehicle of the airbag door section with seventh embodiment of the invention with the airbag door section inside face of INT COMP,
Figure 23 A is a vehicle that the airbag door section with seventh embodiment of the invention variation is shown with the simplified diagram of the position relation of the groove of INT COMP and fracture portion,
Figure 23 B is a vehicle that the airbag door section with seventh embodiment of the invention variation is shown with the simplified diagram of the position relation of the groove of INT COMP and fracture portion,
Figure 23 C is a vehicle that the airbag door section with seventh embodiment of the invention variation is shown with the simplified diagram of the position relation of the groove of INT COMP and fracture portion,
Figure 23 D is a vehicle that the airbag door section with seventh embodiment of the invention variation is shown with the simplified diagram of the position relation of the groove of INT COMP and fracture portion,
Figure 23 E is a vehicle that the airbag door section with seventh embodiment of the invention variation is shown with the simplified diagram of the position relation of the groove of INT COMP and fracture portion,
Figure 23 F is a vehicle that the airbag door section with seventh embodiment of the invention variation is shown with the simplified diagram of the position relation of the groove of INT COMP and fracture portion,
Figure 24 is the amplification profile diagram along the 1-1 line of Figure 25,
Figure 25 illustrates the transparent view of the vehicle of the airbag door section that has eighth embodiment of the invention integratedly with INT COMP,
Figure 26 illustrates the simplified diagram of the vehicle of the airbag door section that has eighth embodiment of the invention integratedly with the step in the manufacturing process of INT COMP,
Figure 27 illustrates the simplified diagram of the vehicle of the airbag door section that has seventh embodiment of the invention integratedly with the step in the manufacturing process of INT COMP,
Figure 28 illustrates the time diagram of the vehicle of the airbag door section that has eighth embodiment of the invention integratedly with the manufacturing process of INT COMP,
The vehicle that Figure 29 A shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 B shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 C shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 D shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 E shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 F shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 G shows the airbag door section that has eighth embodiment of the invention integratedly is with the simplified diagram with respect to the slide core scope of H shape thinner wall section of INT COMP,
The vehicle that Figure 29 H shows the airbag door section that has application example of the present invention integratedly is with the simplified diagram with respect to the slide core scope of FangZi Zhuan thinner wall section of INT COMP,
The vehicle that Figure 29 I shows the airbag door section that has application example of the present invention integratedly is with the simplified diagram with respect to the slide core scope of FangZi Zhuan thinner wall section of INT COMP,
The vehicle that Figure 29 J shows the airbag door section that has application example of the present invention integratedly is with the simplified diagram with respect to the slide core scope of FangZi Zhuan thinner wall section of INT COMP,
The vehicle that Figure 29 K shows the airbag door section that has application example of the present invention integratedly is with the simplified diagram with respect to the slide core scope of FangZi Zhuan thinner wall section of INT COMP,
Figure 30 A shows the vehicle of airbag door section of the application example that has eighth embodiment of the invention integratedly with the simplified diagram of the thinner wall section section form of INT COMP,
Figure 30 B shows the vehicle of airbag door section of the application example that has eighth embodiment of the invention integratedly with the simplified diagram of the thinner wall section section form of INT COMP,
Figure 31 A shows the vehicle of airbag door section of the application example that has eighth embodiment of the invention integratedly with the simplified diagram of the step in the forming process of INT COMP,
Figure 32 A shows the vehicle of airbag door section of the application example that has one embodiment of the invention integratedly with the cross-sectional side view of the airbag door section of INT COMP,
Figure 32 B shows the vehicle of airbag door section of the application example that has one embodiment of the invention integratedly with the transparent view of the airbag door section of INT COMP,
Pressurize change curve when the vehicle that Figure 33 illustrates the air bag doors that has eighth embodiment of the invention integratedly is shaped with INT COMP,
Figure 34 show the application example that has eighth embodiment of the invention integratedly airbag door section vehicle with INT COMP, with the cooresponding cross sectional drawing of Figure 24,
Figure 35 show the application example that has eighth embodiment of the invention integratedly airbag door section vehicle with INT COMP, with the cooresponding cross sectional drawing of Figure 24,
Figure 36 is the cross sectional drawing that two principal elements of the fused intensity that influences first resin and second resin are described,
Figure 37 A illustrates the relation curve of the breaking force of pressurize and fracture portion,
Figure 37 B illustrates the relation curve of the destructive force of core travelling backwards time and fracture portion,
Figure 37 C is the relation curve of fracture portion peripheral wall thickness and fracture portion destructive force,
The vehicle that Figure 38 shows the airbag door section that has other embodiment of the present invention integratedly with INT COMP, with the cooresponding cross sectional drawing of Figure 24,
The vehicle that Figure 39 shows the airbag door section that has other embodiment of the present invention integratedly with INT COMP, with the cooresponding cross sectional drawing of Figure 24,
The vehicle that Figure 40 shows the airbag door section that has other embodiment of the present invention integratedly with INT COMP, with the cooresponding cross sectional drawing of Figure 24.
Implement optimised form of the present invention
Referring to figs. 1 through 4 explanations, first embodiment with vehicle of airbag door section with INT COMP of the present invention.
Arrow FR represents the vehicle front direction among the figure, and arrow UP represents the vehicle top.
As shown in Figure 1, in being arranged at the vehicle railway carriage as vehicle with having disposed airbag apparatus 12 near the inboard of front passenger's seat on the instrument carrier panel 10 of INT COMP.On air bag shell 14 fixing abridged instrument carrier panel, the reinforcements in the drawings of this airbag apparatus 12, the air sac bag body 18 of charging blower 16 and rugosity is contained in the air bag shell 14.
Position roughly relative with air sac bag body 14 on the instrument carrier panel 10 constitutes airbag door section 20, and the position constitutes body 22 beyond the airbag door section 20 of instrument carrier panel 10.Airbag door section 20 and body 22 are to carry out the polymerization technology of Polymer multicomponent material of effect (manufacturing can obtain doubling) as the TSPO[neoprene (rubber) of hard resin and PP (polypropylene), add the parts after french talc carries out complex intensifying again, have Dent resistance and rigidity, the low-gravity PP resin that is suitable for making thin-gage goods by good fluidity, for example crooked elastic rate [1500-3000Mpa] or PP are resin, PC/ABS is a resin, sex change PPO is a resin, and PC/PBT is a resin, and ABS is a resin, the PC resin, ASG is a resin, and TPO is a resin, and TPE is a resin, TPU is a resin, and PC/ sex change PS is formations such as resin.
As shown in Figure 3, forming planar graph at the two ends of the summary central part of the fore-and-aft direction of airbag door section 20 and left and right directions is the thin-walled fracture portion 24 of H shape, and airbag door section 20 was opened both sides forwards, backwards when air sac bag body launched, and air sac bag body is filled in the railway carriage.
The section form of the fracture portion 24 of airbag door section 20 is V word shapes as shown in Figure 2.On the position of the vehicle fore-and-aft direction both sides of the central portion 24A that clips fracture portion 24 on the airbag door section 20, be extruded with downwards as on turn over the projection 28,30 of parts, these projections 28,30 constitute one with airbag door section 20.Therefore, when air sac bag body 20 launches, the lower surface 28A of the air sac bag body of expansion and projection 28,30, the 30A contact, upwards (Fig. 2 arrow A direction) pushes away projection 28,30.
As shown in Figure 4, projection 28,30th is by constituting reticulation along the thin muscle 32 of vehicle fore-and-aft direction extension and the thin muscle 34 that extends along the vehicle-width direction.For preventing burr, the width T1 of these thin muscle 32,34 is set at the airbag door section 20 that is lower than shown in Fig. 2 wall thickness T 1/2.
The width W 1 of projection 28,30 and length L 1 are set at the place ahead door section 20A and each overall with of rear door section 20B and the 5%-20% of total length of the airbag door section 20 shown in Fig. 3 respectively.Therefore, though airbag door section 20 because projection 28,30 can be to Width and length direction deflection, but can be because of inexcessive and impaired, when air sac bag body launches, because of airbag door section 20 towards Width and length direction deflection, so can be reliably break from the central 24A of fracture portion 24.
As shown in Figure 1, on the fore-and-aft direction both ends of airbag door section 20, be formed with thin-walled hinge 26.Therefore, when airbag door section 20 launches at air sac bag body, when the air sac bag body 18 that is expanded pushes, rupture along fracture portion 24 places, the place ahead door section 20A of cracking and rear door section 20B are that rotate at the center with hinge 26, form to make the opening of air sac bag body 18 to the indoor expansion of car.
As Fig. 2 and shown in Figure 4, each bight 28B of the projection 28,30 that air sac bag body contacts with air sac bag body 18 when launching, 30B, 28C, 30C, 28D, 30D, 28E, 30E are smooth plane, in order to protection air sac bag body 18.
Below, the effect of the first embodiment of the present invention is described.
Among this first embodiment, when air sac bag body launches, the air sac bag body 18 of expansion and the following 28A of projection 28,30, the 30A contact, upwards (the arrow A direction of Fig. 2) pushes away projection 28,30.Therefore, produce the impact load of moment, successfully break from the central portion 24A of fracture portion 24 by 18 pairs of projections of air sac bag body 28,30.Even consequently the plate thickness of fracture portion 24 is thicker, also can break at an easy rate, just can realize launching both all satisfied effects of performance and appearance quality (invisible).
In addition, can alleviate the burden of hinge 26.And, owing to constitute, can also prevent that bulging from sinking and distortion with high rigidity hard material.On airbag door section 20, only to design the simple formation of projection 28,30, just can realize the appearance quality and launch the good purpose of performance tool.
And, because by forming projection 28,30 with the integrally formed rib 32 and 34 of air bag doors 20, so, formed the projection 28 that the branch body component needn't be installed, 30, simultaneously, rib 32,34 width (T1) is than the little (T1≤T/2) of the common thickness (T) of airbag door section 20, therefore can on the surface of injection molded rear gasbag door section 20, suppress the burr that rib 32,34 causes, thereby also can not cause the appearance quality to descend.
In this first embodiment, as shown in Figure 4, though the narrow rib 34 that extends by the narrow rib 32 that extends towards the vehicle fore-and-aft direction with towards the vehicle-width direction is with projection 28,30 form reticulation, but the shape of projection 28,30 is not limited to this shape, for example, can also can form other shapes such as E word shape as shown in Figure 5.
In this first embodiment, as shown in Figure 3, though it is the H shape that fracture portion 24 forms plane projection, but the shape of fracture portion 24 is not limited to this shape, for example, rectilinear form shown in Fig. 6 (A), the shape of two Y butt joints shown in Fig. 6 (B), the shapes such as X shown in Fig. 6 (C) also can be used.Shown in Fig. 6 (D), when being X-shaped in fracture portion 24, even on the vehicle-width direction, the mode that also clips fracture portion 24 forms projection 29,31.In addition, shown in Fig. 6 (E), when being Contraband shape in fracture portion 24, an one-sided formation projection in fracture portion 24.
Below, according to Fig. 7-9 explanation second embodiment with vehicle of airbag door section with INT COMP of the present invention.
The parts identical with the parts of first embodiment are with identical symbol, and omit the explanation to it.
As shown in Figure 7, in this second embodiment, iron, the metal sheet 36,38 of metals such as corrosion-resistant steel formation are set respectively below the place ahead of airbag door section 20 door section 20A and rear door section 20B by as aluminium.The leading section 36A of metal sheet 36 is fixed on the body 22 of instrument carrier panel 10 with air bag shell 14 by the bolt 40 that passes the mounting hole of offering on the metal sheet 36 39.The rearward end 38A of metal sheet 38 is fixed on the body 22 of instrument carrier panel 10 with air bag shell 14 by the bolt 42 that passes the mounting hole of offering on the metal sheet 38 41.In addition, the front side leading section 38B of the rear side leading section 36B of metal sheet 36 and metal sheet 38 is bowed downward to rectangular-shaped respectively, turn over the projection 44 of means on the formation, 46, these projections 44,46 contact with the position of the airbag door section 20 front and back sides of the central portion 24A that clips fracture portion 24 respectively when air sac bag body launches.
As shown in Figure 9, from planar view, metal sheet 36 forms the narrower platform shape in rear portion, and metal sheet 38 forms anterior narrower platform shape.The width W 2 of projection 44,46, L2 is set at the place ahead door section 20A and the rear door section 20B overall with separately and the 5%-20% of total length of the airbag door section 20 shown in Fig. 3 respectively.Therefore, though airbag door section 20 because projection 28,30 can be to Width and length direction deflection, but can be because of inexcessive and impaired, when air sac bag body launches, because of airbag door section 20 towards Width and length direction deflection, so can be reliably break from the central 24A of fracture portion 24.
The following describes the effect of this second embodiment 2.
In this second embodiment, as shown in Figure 8, when air sac bag body launches, the air sac bag body 18 of expansion and the following 44A of the projection 44,46 on the metal sheet 36,38, the 46A contact, upwards (the arrow A direction of Fig. 8) pushes away projection 44,46.Therefore, by air sac bag body 18 impact load by front and back double side acting moment of the central 24A of the fracture portion 24 of 44,46 pairs of airbag door sections 20 of projection, therefore, airbag door section 20 successfully breaks from the central portion 24A of fracture portion 24.Even consequently the plate thickness of fracture portion 24 is thicker, also can break at an easy rate, just can realize launching both all satisfied effects of performance and appearance quality (invisible).
In this second embodiment, though, promptly form projection 44 on air sac bag body 18 1 sides in the following side of metal sheet 36,38,46, but also mode is alternative as shown in Figure 10, promptly at metal sheet 36,38 upper surface side just forms projection 44,46 on a side of airbag door section 20.In the case, because the leading section 36B of metal sheet 36,38, projection 44 is set above the 38B, 46, therefore as shown in figure 10, the expansion initial stage, even the upper surface 18A of air sac bag body 18 is concavo-convex, because contact reliably below each of air sac bag body 18 and planar metal plate 36,38, and with projection 44, therefore 46 push away on the arrow A direction, can be reliably break from the central portion 24A of fracture portion 24.As shown in figure 11, on the upper surface side of metal sheet 36,38, be that airbag door section 20 sides form projection 44,46 o'clock, even metal sheet 36,38 plane projection is a rectangle, and projection is contacted with the position of the vehicle fore-and-aft direction both sides of the central portion of the fracture portion that clips air bag doors reliably.In this second embodiment,, on the position roughly relative, also can make metal sheet 36,38 bend to the U-shaped shape up or down and constitute hinge with the hinge 26 of airbag door section 20 though on metal sheet 36,38, specially do not form hinge.
According to Figure 12 and Figure 13 the 3rd embodiment with vehicle of airbag door section with INT COMP of the present invention is described below.
The parts identical with the parts of first embodiment are with identical symbol, and omit the explanation to it.
As shown in figure 12, in this 3rd embodiment, iron, the metal sheet 48,50 of metals such as corrosion-resistant steel formation are set respectively below the place ahead of airbag door section 20 door section 20A and rear door section 20B by as aluminium.The leading section 48A of metal sheet 48 is fixed on the air bag shell 14 by bolt 51 and nut 52, and the rearward end 50A of metal sheet 50 is fixed on the air bag shell 14 by bolt 53 and nut 54.The hinge 48B of metal sheet 48,50, the 50B wall is thicker.These hinge 48B, 50B with respect to the hinge 26 of airbag door section 20 setover downwards (Offset H1, H2), simultaneously to the central portion 24A of fracture portion 24 lateral deviation put (Offset K1, K2 ).Metal sheet 48,50, hinge 48B, 50B and become position and hinge 48B, 50B and leading section 48C between leading section 48A, the rearward end 50A of installation portion, the rigidity at the position between the 50C is than the height of hinge 48B, 50B.That is, just the wall of hinge 48B, 50B approaches and is low rigidity.
The following describes the effect of this 3rd embodiment.
In this 3rd embodiment, as shown in figure 13, when air sac bag body launches, the air sac bag body 18 of expansion and the following contact of metal sheet 48,50, upwards (the arrow A direction of Figure 13) pushes away the leading section 48C of metal sheet 48,50,50C.Therefore, by the air sac bag body 18 leading section 48C by the high rigidity of metal sheet 48,50,50C is to the impact load of front and back double side acting moment of the central portion 24A of the fracture portion 24 of airbag door section 20, therefore, airbag door section 20 successfully breaks from the central portion 24A of fracture portion 24.Even consequently the plate thickness of fracture portion 24 is thicker, also can break at an easy rate, both are all satisfied just can to realize launching performance and appearance quality (invisibility).
Because metal sheet 48,50 hinge 48B, 50B more is partial to the central portion 24A side of fracture portion 24 than the hinge 26 of airbag door section 20, and metal sheet 48,50 hinge 48B, 50B and the leading section 48A that becomes installation portion, position between the rearward end 50A is high rigidity, so can utilize metal sheet 48,50 hinge 48B, 50B and leading section 48A, the hinge 26 of air sac bag body 18 direct contact airbag door sections 20 when the position between the 50A prevents that air sac bag body from launching, thus the hinge 26 that can prevent 18 pairs of airbag door sections 20 of air sac bag body causes the destruction of fracture etc.
In this 3rd embodiment, though the hinge 48B of metal sheet 48,50,50B is a thin wall shape, can mode shown in Figure 14 replace it, i.e. the hinge 48B of metal sheet 48,50, and 50B also can adopt the structure that makes metal sheet 48,50 bend to the U-shaped shape.
According to Figure 15 the 4th embodiment with vehicle of airbag door section with INT COMP of the present invention is described below.
The parts identical with the parts of the 3rd embodiment are with identical symbol, and omit the explanation to it.
As shown in figure 15, in this 4th embodiment, below the place ahead of airbag door section 20 door section 20A and rear door section 20B, dispose respectively by as aluminium, iron, metals such as corrosion-resistant steel formation is broken through the high door hinge portion fender 56,58 of power.The anterior 56A of door hinge fender 56 is fixed on the air bag shell 14 by nut 51 and bolt 52, and the rear portion 58A of door hinge portion fender 58 is fixed on the air bag shell 14 by nut 53 and bolt 54.The rear portion 56B of door hinge fender 56 and the anterior 58B of door hinge fender 58 are outstanding, and respectively than the central portion 24A side of the more close fracture of the hinge 26 of airbag door section 20 portion 24, and extend to the position near the inside of airbag door section 20.Each extension of the rear portion 56B of door hinge fender 56 and the anterior 58B of door hinge fender 58 is that to have the structure of plastic deformation to a certain degree under the effect of the impact load of air sac bag body 18 best.
The following describes the effect of the 4th embodiment.
In this 4th embodiment; because door fender 56; 58 rear portion 56B and anterior 58B are outstanding; more approach the central portion 24A side of fracture portion 24 respectively than the hinge 26 of airbag door section 20; and extend to position near the inside of airbag door section 20; so when air sac bag body launches, can prevent the hinge 26 of air sac bag body 18 direct contact airbag door sections 20, can prevent the breakage that 18 pairs of hinge 26 of air sac bag body cause.In addition, owing to can protect the hinge 26 of airbag door section 20, so the central portion 24A of the low relatively fracture portion 14 of intensity is easier to break.
Below, according to Figure 16 the 5th embodiment with vehicle of airbag door section with INT COMP of the present invention is described.
The parts identical with first embodiment adopt identical symbol, and omit the explanation to it.
As shown in figure 16, in this 5th embodiment, as the airbag door section 20 of air bag doors base material with integrally formed as the identical hard resin material of body 22 usefulness of body base material, configuration is gone up as by PVC in the surface of this integrally formed base material 60 (design surface), TPO, one deck top layer 62 that fiber and other material constitutes, this top layer 62 forms by inserting to be shaped or to paste to be shaped.The fracture portion 24 of 62 inner face side (base material) or face side upper edge base material forms as thin-walled fracture portion 64 surface (design surface) of top layer 62 covering substrates 60 on the top layer.
The following describes the effect of this 5th embodiment.
In this 5th embodiment, when air sac bag body launches, the air sac bag body 18 of expansion and the following 28A of projection 28,30, the 30A contact upwards pushes away projection 28,30.Therefore, producing the impact load of moment by 18 pairs of projections of air sac bag body 28,30, successfully break from the central portion 24A of fracture portion 24, also breaks smoothly from fracture portion 60 in top layer 62.Even consequently the plate thickness of mouth 24 is thicker, also can break at an easy rate, both are all satisfied just can to realize launching performance and appearance quality (invisibility).
In addition, can also alleviate the burden of hinge 26.And, owing to constitute airbag door section 20, can prevent also that therefore bulging from sinking and distortion with high rigidity hard material.On air bag doors 20, only to design the simple formation of projection 28,30, just can suppress to launch performance and the appearance quality decline (the welding burr of base material or wavy concavo-convex) of duplicating on top layer 62.And, with comparing of double-colored shaping, the structure of unnecessary complexity, also not to the carrying out back processing of the fracture portion 24 of base material 60.
In addition, when inserting the shaping top layer, except the individual layer top layer 62 shown in Figure 17 (A), the double-deck top layer 62 that can also use Figure 17 (B) to illustrate reaches 3 layers of top layer 62 that Figure 17 (C) illustrates.To Figure 17 (C), symbol 63 is froth beds at Figure 17 (A), and symbol 48 is screen layers.
When paste being shaped, except the individual layer top layer 62 that Figure 18 (A) shows, also can use the top layer 62 of the band froth bed 63 that Figure 18 (B) illustrates.
Below, according to Figure 19 the 6th embodiment with vehicle of airbag door section with INT COMP of the present invention is described.
As shown in figure 19, in this 6th embodiment, between base material 60 and top layer 62, foaming integratedly forms by the foaming layer 70 that constitutes as urethane foam.
Below, the effect of this 6th embodiment is described.
In this 6th embodiment, when air sac bag body launches, the air sac bag body 18 of expansion and the following 28A of projection 28,30, the 30A contact upwards pushes away projection 28,30.Therefore, producing the impact load of moment by 18 pairs of projections of air sac bag body 28,30, successfully break from the central portion 24A of fracture portion 24, also breaks smoothly from fracture portion 60 in foaming layer 70 and top layer 62.Even consequently the plate thickness of mouth 24 is thicker, also can break at an easy rate, both are all satisfied just can to realize launching performance and appearance quality (invisibility).
In addition, can also alleviate the burden of hinge 26.And, owing to constitute airbag door section 20, can prevent also that therefore bulging from sinking and distortion with high rigidity hard material.On airbag door section 20, only to design the simple formation of projection 28,30, just can suppress to launch performance and the appearance quality decline (the welding burr of base material or wavy concavo-convex) of duplicating on top layer 62.And with comparing of existing foaming type, the link of the door base material of unnecessary enhancing iron plate and split does not need to connect operation yet.
Below, according to Figure 20 to Figure 22 the 7th embodiment with vehicle of airbag door section with INT COMP of the present invention is described.
The parts same-sign identical with first embodiment, and omission is to its explanation.
As shown in figure 20, in this 7th embodiment, with different among first embodiment, on airbag door section 20, do not form projection, the hinge 26 of airbag door section 20 is near being formed on the shell filling portion 72 that being used on the body 22 install air bag shell 14, and the front and back width M that strides across regulation becomes the thinner wall section of regulation thickness of slab.In addition, the middle cross section that becomes point of inflection of the front and back width of hinge 26 is the groove 74,76 of U-shaped.
As shown in figure 22, the part 26A that in the vehicle- width direction groove 74,76 is not set on the hinge 26 of airbag door section 20 is set on the both sides of groove 74,76, and the two ends of groove 74,76 do not connect the fore-and-aft direction crack line 24B of fracture portion 24,24C.Compare with the groove 74 of vehicle front side, the groove 76 of rear view of vehicle side is longer, and it is dark that the degree of depth of the depth ratio groove 74 of groove 76 is wanted.
The fore-and-aft direction crack line 24B of fracture portion 24, the end of 24C all is a linearity.
Below, the effect of this 7th embodiment is described.
In this 7th embodiment, as shown in figure 21, the point of inflection S of the hinge 26 of the airbag door section 20 when air sac bag body launches can leave the border P that occurs shell filling jumpy portion 72 with plate thickness because of the position of groove 74.Consequently can dwindle the local bending sheetage (the top layer expansion and contraction of curved outside) that the bending of hinge 26 causes.And, owing to formed groove 74, prolong the unfolded surface length of sweep as possible and can dwindle the essence sheetage, therefore can prevent the damage that the bending when air sac bag body launches causes hinge 26 effectively.
Owing on the vehicle-width direction, be provided with and offer groove 74,76 part 26A, therefore by preventing that air sac bag body from launching the shear strength at initial stage hinge 26 is caused breakage, and the thickness of slab attenuation can prevent to cause injection molded because groove 74,76 is set the time causes resin flows to be obstructed.And, also can adjust a start point (door sinuousness) by adjusting the length of groove 74,76.
Because the fracture portion 24 of airbag door section 20 is H shapes, the fore-and-aft direction crack line 24B in the two ends of groove 74,76 and the fracture portion 24, therefore 24C does not connect, and can prevent breakage be full of cracks that bending causes groove 74,76 towards crack line 24B, the expansion of 24C direction.
Because the fore-and-aft direction crack line 24B in the H type fracture portion 24, the end 80 of 24C is linearities, so the air sac bag body expansion initial stage, can prevent that the be full of cracks of the disconnection generation of fracture portion 24 from expanding to hinge 26.
Because the length of the groove 76 of rear view of vehicle side is longer than the length of the groove 74 of vehicle front side, and the increase of the expansion aperture of the rear door section 20B of rear view of vehicle side (occupant side), therefore air sac bag body 18 is launched smoothly.By changing the length or the degree of depth of groove 74,76, also can easily adjust a start point (door angle of bend).
In this 7th embodiment, as shown in figure 22, though on airbag door section 20, respectively form a groove 74,76 in vehicle front side and rear view of vehicle side, but be not limited to the bar number of each groove 74,76 and form the position, shown in Figure 23 (A), also can shorten each groove 74,76 and be divided into many grooves 82,84.Shown in Figure 23 (B), the position that can make sectional grooves 82 is near fore-and-aft direction crack line 24B, the end 80 of 24C.According to the crooked shape of the appearance of airbag door section 20, can with groove 82,84 by as Figure 23 (C) shown in, be designed to like that towards mutually away from direction bloat circular-arc, perhaps recessed circular-arc of such close towards each other direction shown in Figure 23 (D).Handle like this, the resin flows problem of being obstructed in the time of can preventing injection molded, and the circular arc bending of the goods upper surface of the door hinge portion can make door hinge portion along the door bend open time, thus also can prevent the fracture of door hinge portion.In addition, groove 74,76 is not limited to the U-shaped shape, also can make other shapes such as V word shape.Crack line 24 is not limited to H shape, shown in Figure 23 (E), also can adopt the crack line 24 of FangZi Zhuan, shown in Figure 23 (F), also can adopt the crack line 24 of X word shape.The symbol 85 expression sectional grooves of Figure 23 (F).
Below, according to Figure 24-Figure 28 the 8th embodiment of INT COMP of the vehicle with air bag doors of one of the present invention is described.
The parts identical with first embodiment are with identical symbol, and omit the explanation to it.
As shown in figure 24, the cross section of thinner wall section 24 is a V word shape, and as shown in figure 26, the V word height h of thinner wall section 24 is set at the average thickness range that is no more than airbag door section, for example in 0＜h≤5mm scope.When the mean thickness of airbag door section was thicker, then h also can thicken.Near when becoming the airbag door section expansion front end (bottom) 24A fracture portion, the while is set at the resin of the place ahead door section 20A that constitutes airbag door section 20 and constitutes the resin flows border 25 of the resin of rear door section 20 near front end 24A.
Below, the manufacturing process of the instrument carrier panel of detailed description present embodiment.
At first, as shown in figure 26, the mfg. moulding die of instrument carrier panel has mold 130 and bed die 132, mold 130 is as the mould of the appearance side of instrument carrier panel, in the different injection hole G1 of regulation or the cavity 134 of G2 (with reference to Figure 25) between mold 130 and bed die 132, inject resin, the place ahead door section 20A of formation airbag door section 20, in addition, behind injection hole G1 or G2 injection resin, form rear door section 20B.At this moment, as shown in figure 26, the cross section be spaced apart less initial stage gap S between the front end 140A of leg-of-mutton slide core 140 and the mold 130 (0＜S≤2mm), in fact disjunction cavity 134.
Figure 28 shows an example of molding condition, and with respect to the injection moulding time opening T1 of injection hole G2, the injection moulding time opening of injection hole G1 is decided to be T2, and T2 is than T1 TS delay time (time gap of beginning).Will by injection hole G1 forwards the resin that injects of door section 20A arrive the front end 140A of slide core 140 and the time of filling the place ahead door section 20A is decided to be T3, will by injection hole G2 rearward the resin that injects of door section 20B arrive the front end 140A of slide core 140 and the time of filling rear door section 20B is decided to be T4, and the time difference between time T 3 and the T4 to be turned down.(this is in order to prevent that the dislocation of the resin flows border 25 of surface layer and the front end 24A of thinner wall section 24 increases when the time difference is big, and it is unfavorable that air sac bag body causes its cracking when launching.) in addition, arrive the moment T3 of the front end 140A of slide core 140 from the resin of the place ahead door section 20A, during specified time point T7 to the time period of pressurize concluding time T6, make slide core 140 move down specified amount from the position (Figure 27 dotted line position) near mold 130 towards disengaging direction (the arrow B direction of Figure 27) (is set at and is no more than the airbag door section average thickness range, for example the scope of 0＜L≤5mm instantaneously.Under the thicker situation of mean thickness, also can increase L) and arrive lower position (solid line position of Figure 27).
Therefore, the volume that moves of slide core 140 has produced a space 150, between pressurize concluding time T6, come the front space 150A of filling space 150 by the resin of the place ahead door section 20A, and, come the rear space 150B of filling space 150 by the resin of rear door section 20B, at this position, the front end of thinner wall section 24 (bottom) 24A and resin flows border 25 are consistent becomes the state of Figure 27.In Figure 27, for the ease of understanding, represent with different hatchings with rear space 150B by the front space 150A of resin fill.The 5 expression pressurize time openings of time T shown in Figure 28, cool off behind the pressurize concluding time T6.
The pressurize setting of the time of core travelling backwards preferably is described herein.
Usually after injection moulding finishes, handle through add the pressurize that is lower than 1/2 injection pressure again to the resin that injects, so as weight that can the stable formation product, size and dimension.In the present embodiment, shown in the solid line of Figure 33, pressurize is divided into V1, two stages of V2.Because the pressurize value V1 of F/s has bigger influence to whole Products Quality, therefore in order to ensure resin interflow (fusing) intensity of the fracture portion of present embodiment, the leeway of freely selecting is less.On the other hand, subordinate phase pressurize value V2 is because have the pressurize effect of F/s, and little to the goods entire effect, therefore has higher free choice.Thereby, the travelling backwards time of slide core 140 preferably be set at first period dwell time that goods are not prone to quality problems through after, i.e. in the time period during second section pressurize.
On the other hand, as is generally known, the factor that influences the fused intensity of resin is fused resin at the interface contact pressure and resin temperature (fused intensity was low when contact pressure and resin temperature were low) to each other.Herein, in the present embodiment, can control the resin contact pressure to each other that the interface is fused in fracture portion by pressurize, control the resin temperature at the fused interface of fracture portion by core travelling backwards time and fracture portion peripheral panels thickness, thereby the breakout force of fracture portion is controlled on the desirable value.
Describe this point below in detail.
As shown in figure 36, first resin 180 and second resin 182 push away them towards the direction that compresses mutually with the thrust of stipulating after the temperature at each fused interface is brought up to dissolved state in advance, it is engaged each other.If consider the fused intensity at the fused interface 184 of first resin 180 and second resin 182, according to common principle, known 2 factors that influence this fused intensity, Here it is fuses the resin contact pressure and the resin temperature to each other at interface 184.
Here, when intensity is fused in the fracture portion of control present embodiment, also should take same consideration.Promptly after flowing, solidify under the state of beginning, with respect to the portion of confluxing of stir-in resin (fused portion), the control of displacement ground as the pressurize of the mould inner pressure relevant with the contact pressure that passes to fused interface and with the relevant core travelling backwards time and the fracture portion periphery wall thickness of the resin temperature (fused resin at the interface is cooled through behind the certain hour from dissolving state) at fused interface.
For example, at the injection pressure 13.5Mpa that uses inlet, injection length 6 seconds, pressurize 6.5Mpa (F/s), 5.5Mpa (subordinate phase), dwell time 2+7 second, under the situation of same product weight and same test material, shown in Figure 37 (A), pressurize is high more, the contact pressure that passes on the fused interface is high more, and fracture portion destructive force increases.Shown in Figure 37 (B), because the core travelling backwards time is slow more, the time of cooling off is elongated, and the resin temperature at fused interface reduces, so fracture portion breaking force diminishes.And in addition, shown in Figure 27 (C), the height of V word is high more, that is, the wall of fracture portion periphery is thick more, and the resin temperature at fused interface is difficult to reduce more, so fracture portion breakout force increases.
Thereby by with these pressurizes, each condition of core travelling backwards time and fracture portion periphery wall thickness combines, and just can be very easy to and accurately the disruption characteristic of fracture portion is controlled on the desired value.
The core travelling backwards is too fast before sand off, the resin of then positive filling does not flow in filling finishes the space of side, the predetermined fracture portion that is determined by slide core will be departed from the resin flows border, with respect to this, core travelling backwards time set under the situation after the sand off, just can be prevented the dislocation of resin flows border and fracture reservations.
As shown in figure 28, the core travelling backwards time T 7 that is preferably slide core 140 is set in injection hole G1, first period dwell time after the filling of G2 side, between pressurize time opening (T5) and pressurize concluding time (T6) through after, and, resin temperature can be not low excessively, after preferably core travelling backwards time set just being passed through first period dwell time.
Shown in Figure 33 dotted line, also pressurize can be divided into three phases or three above stages, and with core travelling backwards time set after the subordinate phase pressurize.In the case, because of with core travelling backwards time set after second section pressurize, can positively carry out first section pressurize, and can make the weight of formed products, it is stable that size and shape keep, and can reduce the fraction defect of goods.
According to above step, as shown in figure 27, because when forming the cross section and be the thinner wall section 24 of V word shape by means of the front end 140A of slide core 140, the amount of movement L of slide core 140 is less, so resin flows border 25 is set at the front end 24A place of thin-walled 24.
Thereby, in the instrument carrier panel 10 of present embodiment, because resin flows border 25 is set in when being used to form air sac bag body and launching core travelling backwards zone as the slide core 140 of the thinner wall section 24 of fracture portion, be thinner wall section 24 front end 24A near, therefore strength degradation and the thickness of slab control that causes according to resin flows border 25 can make the breaking force of fracture portion reduce to desired value.Therefore, because unnecessary resin thickness with fracture portion (initial stage gap S+ core path increment L) is done as thin as a wafer, therefore can prevent that the appearance quality from descending, cannot see the crack line of fracture portion simultaneously fully from the appearance side, also improved heat aging property, supporting of airbag door section single-piece and planar rigidity.And because the airbag door section 20 of instrument carrier panel 10 resin identical with body 22 usefulness forms therefore unnecessary sprayed on material respectively, thereby but cost-cutting.
In the manufacturing process of the instrument carrier panel of present embodiment, because by means of front end is leg-of-mutton slide core 140 comes the disjunction airbag door section with fracture portion cavity 134, under this state in each cavity of disjunction, injecting resin, abandon at resin and to make core 140 retreat a little so a kind of straightforward procedure under the condition of filling out before and after finishing resin flows border 25 can be set in when forming airbag door section and launching in the core travelling backwards zone as the slide core 140 of the thinner wall section 24 of fracture portion.Consequently, because can use existing former, so can cost-cutting.Because method is simple, guarantee the function quality prerequisite under, reliability height and production efficiency are also high.
In sum, understand certain embodiments of the present invention in detail, but the present invention is not limited to the foregoing description, within the scope of the invention, for the ordinary skill in the art, can also make various embodiments.For example, the cross sectional shape of fracture portion 24 can be other shapes such as U-shaped except that V word shape.The present invention on being used for instrument carrier panel, can also be used for door trim decorations, centre strut, decorative fitting is on the control lever etc.
In the 8th embodiment, between the front end 140A of slide core 140 and mold 130, separate initial stage gap S (0＜S≤2mm), front end 140A and mold 130 no any interference to slide core 140, can prevent the scuffing of die surface and guarantee durability, but when time difference TL is big, gap S is decided to be 0.1＜S≤0.82mm with the initial stage, and then the dislocation of the front end 24A of the resin flows border 25 of surface layer and thinner wall section 24 increases.At this moment, though that the cracking when launching for air sac bag body has slightly is unfavorable, under same thickness, slightly improve in the appearance quality of the fracture portion suture of the appearance side at front end 24A place.According to this situation, the initial stage gap is set at S=0, the front end 140A of core 140 is contacted with mold 130.
In the 8th embodiment, though the injection time opening T2 of inlet G1 is than the late time difference TS of injection time opening T1 (initial dislocation) of inlet G2, but also can be according to the position relation of inlet G1 and G2, inject earlier from inlet G1, and, can shorten filling off time (time difference) TL from the TS in evening time that G2 injects.In addition, in the injection time opening T1 of the injection time opening of inlet G1 T2 and inlet G2 situation simultaneously, if the resin of the place ahead door section 20A that injects from inlet G1 arrive time T 4 that the resin of the time T 3 of front end 140A of slide core 140 and the rear door section 20B that injects from inlet G2 arrives the front end 140A of slide core 140 be on the identical position also passable.
As the scope that slide core 140 is set, in satisfying the scope of launching performance and mold structure permission, shown in Figure 29 (A), can be on the thinner wall section 24 of whole H shape, shown in Figure 29 (B), the scope of slide core 140 only can be located on the horizontal line of H shape thinner wall section 24.And shown in Figure 29 (C), the scope of slide core 140 only can be located on the ordinate of H shape thinner wall section 24.And as Figure 29 (D), shown in 29 (G), also the scope of slide core 140 only can be located on the part of H shape thinner wall section 24.
The cross sectional shape of thinner wall section 24 can also be the shape with the level shown in the R shape shown in Figure 30 (A) and Figure 30 (B) except vee shape.
In addition, any moment of the core travelling backwards time of slide core 140 before being not only from the time T 3 of Figure 28 to anti-T6, and if resin be to flow, then also can carry out in the cooling process after time T 6.The core travelling backwards speed of slide core 140 can be at a high speed also can be from time T 3 to time T between 6 to carry out at a slow speed.Because the resin of the place ahead door section 20A does not just inject from inlet G1, also can inject resin and carry out filling from inlet G2,, so can only utilize an inlet.
The scope of slide core 140 is set when being the plane FangZi Zhuan as thinner wall section 24, so long as just in the scope that satisfies spread performance and mold structure, shown in Figure 29 (H), can be on whole lines of FangZi Zhuan thinner wall section 24, shown in Figure 29 (I), the scope that also can make slide core 140 is only along in the scope of the horizontal line of FangZi Zhuan thinner wall section 24.Shown in Figure 29 (J) and Figure 29 (K), the scope that also can make slide core 140 is only in the subrange of FangZi Zhuan thinner wall section 24.
As shown in figure 31, the manufacturing process of the 8th embodiment also uses different resins applicable to the body 160 of instrument carrier panel and airbag door section 162, the instrument carrier panel 164 of the airbag door section with double-colored one that is formed by slide core 163.
Shown in Figure 32 (A) and Figure 32 (B), the manufacturing process of the 8th embodiment is also applicable to body 170 and airbag door section 172 with resin split injection molded instrument carrier panel, afterwards, again both are utilized on the instrument carrier panel 174 that pawl or Screw fuse them.
As shown in figure 34, the manufacturing process of the 8th embodiment is also applicable to the appearance 60A top layer with base material 60 and covering substrates 60, and insert on so-called top layer, the top layer adhesive type as vehicle with on the instrument carrier panel 10 of INT COMP.At this moment, 62 upper edge grooves 24 form fracture portions 64 on the top layer, and the top layer set for break easily when air sac bag body launches.Perhaps, though non-cracking portion 64, but because the rigidity of airbag door section material is big, thus locally when launching produce tensile stress, so also fracture easily of top layer 62.Under the situation of top layer 62 shown here, except that the single top layer 62 shown in Figure 17 (A), also can use the double-deck top layer 62 shown in Figure 17 (B), three layers of top layer shown in Figure 17 (C) for the top layer insertion.
Under the situation of adhesive type, except that single top layer 62 shown in Figure 18 (A), the top layer 62 that also can use the band foaming layer 63 shown in Figure 18 (B).
As shown in figure 35, the manufacturing process of the 8th embodiment is also applicable to having base material 60, top layer 62 and 62 foaming layer 70 between base material 60 and top layer, and promptly so-called vehicle as the foaming type is with on the instrument carrier panel 10 of INT COMP.
Be not only as Figure 34 and the fracture portion 64 that is formed on the top layer 62 shown in Figure 35 and be formed on the face side, but also be formed on the medial surface.The shape of fracture portion 64 is not limited to the U-lag shape, also V-arrangement, other shape of linear slit shape or the like.
The present invention also can be the 8th embodiment shown in Figure 24 as the instrument carrier panel 10 of vehicle with INT COMP on the such formation of Figure 38 of turning over the projection 28,30 of means in the conduct of first embodiment shown in Figure 1 is set.The present invention also can be the one airbag door section of the application examples with the 8th embodiment shown in Figure 34 as the instrument carrier panel 10 of vehicle with INT COMP on the such formation of Figure 39 of turning over the projection 28,30 of means in the conduct of first embodiment shown in Figure 1 is set.The present invention also can be the one airbag door section of the application examples with the 8th embodiment shown in Figure 35 as the instrument carrier panel 10 of vehicle with INT COMP on the such formation of Figure 40 of turning over the projection 28,30 of means in the conduct of first embodiment shown in Figure 1 is set.
Industrial application
As mentioned above, the vehicle internals and the shaping thereof that have airbag door section of the present invention Method is owing to be to form vehicle with identical resin to use with airbag door section and the vehicle of internals The body of internals, therefore very useful, particularly the appearance quality can not descend, and The destructive power of airbag door section fracture can be dropped to desired value.
Claims (12)
- One kind the band airbag door section (20) the vehicle interior member, it is characterized in that, set resin flows border (25) in the core travelling backwards zone of the fracture portion (24) when forming airbag door section (20) expansion, cannot see the suture of fracture portion (24) from the appearance side.
- 2. the vehicle interior member of band airbag door section according to claim 1 is characterized in that, forms body (22) and the airbag door section (20) of the vehicle of one or split with INT COMP with identical resin with injection moulding.
- 3. the vehicle interior member of band airbag door section according to claim 1 is characterized in that vehicle has with different resins with the integrally formed airbag door section of double-colored forming process with airbag door section (20) with the body (22) of INT COMP.
- 4. the vehicle interior member of band airbag door section according to claim 1, it is characterized in that vehicle one or split makes with injection molded with identical resin with airbag door section (20) with the body (22) of the base material (60) of decoration element, this base material (60) has the airbag door section (20) that the top layer (62) by band fracture portion (64) or non-cracking portion covers.
- 5. the vehicle interior member of band airbag door section according to claim 1, it is characterized in that vehicle one or split is injection molded with identical resin with airbag door section (20) with the body (22) of the base material (60) of INT COMP, this base material is covered by the top layer (62) with fracture portion (64), forms foaming layer (63) between this top layer (62) and above-mentioned base material (60).
- 6. manufacturing process with vehicle interior member of each described band airbag door section among the claim 1-5, it is characterized in that by making front end (140A) slide core (140) triangular in shape come close to or in contact with fixed mould (130), by fracture portion (24) disjunction cavity (134), each cavity to disjunction under this state injects resin, before and after sand off, make above-mentioned slide core do to retreat in a small amount, wherein by the pressurize before and after the above-mentioned sand off of combination, the wall thickness of core travelling backwards time and fracture portion periphery is controlled the disruption characteristic of fracture portion.
- 7. the manufacturing process of the vehicle interior member of band airbag door section according to claim 6 is characterized in that, forms body (22) and the airbag door section (20) of the vehicle of one or split with INT COMP with identical resin with injection moulding.
- 8. the manufacturing process of the vehicle interior member of band airbag door section according to claim 6 is characterized in that vehicle has with different resins with the integrally formed airbag door section of double-colored forming process with airbag door section (20) with the body (22) of INT COMP.
- 9. the manufacturing process of the vehicle interior member of band airbag door section according to claim 6, it is characterized in that vehicle one or split makes with injection molded with identical resin with airbag door section (20) with the body (22) of the base material (60) of decoration element, this base material (60) has the airbag door section (20) that the top layer (62) by band fracture portion (64) or non-cracking portion covers.
- 10. the manufacturing process of the vehicle interior member of band airbag door section according to claim 6, it is characterized in that, vehicle one or split is injection molded with identical resin with airbag door section (20) with the body (22) of the base material (60) of INT COMP, this base material is covered by the top layer (62) with fracture portion (64), forms foaming layer (63) between this top layer (62) and above-mentioned base material (60).
- 11. the manufacturing process according to the vehicle interior member of the band airbag door section of claim 6 record is characterized in that above-mentioned core travelling backwards time set is after above-mentioned sand off.
- 12. manufacturing process according to the vehicle interior member of the band airbag door section of claim 6 record, it is characterized in that, pressurize is carried out in decompression after above-mentioned sand off, pressurize after the above-mentioned sand off is divided into several stages, with above-mentioned core travelling backwards time set after second packing stage.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7370297 | 1997-03-26 | ||
| JP73702/97 | 1997-03-26 | ||
| JP203237/97 | 1997-07-29 | ||
| JP20323797A JP3765166B2 (en) | 1997-07-29 | 1997-07-29 | Vehicle interior member having airbag door |
| JP30535797A JP3428402B2 (en) | 1997-03-26 | 1997-11-07 | Vehicle interior member having an airbag door and method of molding the same |
| JP305357/97 | 1997-11-07 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB988003678A Division CN100374328C (en) | 1997-03-26 | 1998-03-20 | Interior member having airbag door section for use in vehicles, and its molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101186198A true CN101186198A (en) | 2008-05-28 |
| CN101186198B CN101186198B (en) | 2011-07-27 |
Family
ID=39478883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101823985A Expired - Fee Related CN101186198B (en) | 1997-03-26 | 1998-03-20 | Interior member having an airbag door section for use in vehicles, and its molding method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101186198B (en) |
| ES (1) | ES2363035T3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317654A (en) * | 2012-03-21 | 2013-09-25 | 佛吉亚汽车内部系统公司 | Molding in airbag door features in a vehicle interior panel using a movable mold member |
| CN109466494A (en) * | 2017-09-08 | 2019-03-15 | 丰田自动车株式会社 | Back seat side air bag device |
| CN112223991A (en) * | 2019-07-15 | 2021-01-15 | 全耐塑料欧洲公司 | Reinforced insert with through hole |
| CN113147398A (en) * | 2021-04-12 | 2021-07-23 | 东风汽车集团股份有限公司 | Active avoidance system and avoidance method for auxiliary instrument panel |
| CN115026997A (en) * | 2022-04-28 | 2022-09-09 | 泰德兴精密电子（昆山）有限公司 | Double-color injection molding product and mold forming process thereof |
-
1998
- 1998-03-20 CN CN2007101823985A patent/CN101186198B/en not_active Expired - Fee Related
- 1998-03-20 ES ES07020983T patent/ES2363035T3/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317654A (en) * | 2012-03-21 | 2013-09-25 | 佛吉亚汽车内部系统公司 | Molding in airbag door features in a vehicle interior panel using a movable mold member |
| CN109466494A (en) * | 2017-09-08 | 2019-03-15 | 丰田自动车株式会社 | Back seat side air bag device |
| CN109466494B (en) * | 2017-09-08 | 2021-05-18 | 丰田自动车株式会社 | Rear seat side airbag device |
| CN112223991A (en) * | 2019-07-15 | 2021-01-15 | 全耐塑料欧洲公司 | Reinforced insert with through hole |
| CN112223991B (en) * | 2019-07-15 | 2024-03-08 | 全耐塑料欧洲公司 | Reinforcing insert with through holes |
| CN113147398A (en) * | 2021-04-12 | 2021-07-23 | 东风汽车集团股份有限公司 | Active avoidance system and avoidance method for auxiliary instrument panel |
| CN113147398B (en) * | 2021-04-12 | 2022-06-03 | 东风汽车集团股份有限公司 | Active avoidance system and avoidance method for auxiliary instrument panel |
| CN115026997A (en) * | 2022-04-28 | 2022-09-09 | 泰德兴精密电子（昆山）有限公司 | Double-color injection molding product and mold forming process thereof |
| CN115026997B (en) * | 2022-04-28 | 2024-03-08 | 泰德兴精密电子（昆山）有限公司 | Double-shot injection product and mold forming process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101186198B (en) | 2011-07-27 |
| ES2363035T3 (en) | 2011-07-19 |
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