CN1694826A - Vehicle upholstery member having air bag door, and method and device for producing the same - Google Patents

Vehicle upholstery member having air bag door, and method and device for producing the same Download PDF

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Publication number
CN1694826A
CN1694826A CN 03825143 CN03825143A CN1694826A CN 1694826 A CN1694826 A CN 1694826A CN 03825143 CN03825143 CN 03825143 CN 03825143 A CN03825143 A CN 03825143A CN 1694826 A CN1694826 A CN 1694826A
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China
Prior art keywords
epidermis
break line
trim
air
mentioned
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Granted
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CN 03825143
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Chinese (zh)
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CN100337858C (en
Inventor
松野竹己
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Nakata Coating Co Ltd
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Nakata Coating Co Ltd
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Publication of CN1694826A publication Critical patent/CN1694826A/en
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  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

A vehicle upholstery member having an invisible type air bag door formed with a break-scheduled line that is designed for easy measurement of depth or the like and that cannot be recognized from the front surface side; a method of producing the same; and a device for producing the same. In a vehicle upholstery member having a skin-equipped air bag door and in a method of producing the same, a portion of the back surface of the skin corresponding to the portion where the vehicle air bag is installed is formed with a break-scheduled line that is not so deep as to reach the surface of the skin and adapted to assume a substantially V-shaped groove shape when the skin is bent with its back surface convexed, and the depth of the break-scheduled line or the thickness of the remaining portion is measured, with the incision of the break-scheduled line opened. Further, a device for producing a vehicle upholstery member having such air bag door comprises a support base for substantially flatly mounting the skin thereon, a cutting blade for forming the break-scheduled line in the skin, and measuring means for measuring the depth of the break-scheduled line or the thickness of the remaining portion.

Description

The interior automotive trim trim that contains the air-bag deployment oral area, its manufacture method and manufacturing installation
Technical field
The present invention is about being used for installing the interior automotive trim trim that contains the air-bag deployment oral area additional, the technology of manufacture method and manufacturing installation thereof on bearing circle and gauge panel etc.Particularly about in the predetermined break line of the easy mensuration degree of depth and residual thickness that is shaped, but can not go out to be scheduled to the in-built component for automobile (the following interior automotive trim trim that also abbreviates as) of containing of break line of stealthy air-bag deployment oral area to the eye, its manufacture method and manufacturing installation thereof.
Background technology
At present, through integrated bearing circle that contains the air-bag deployment oral area or the gauge panel that is used for making the expansion of air-bag deployment mouth that be provided with, all be provided with the interior automotive trim trim that contains the air-bag deployment oral area of implementing stereo decorations such as line shape processing on the surface.Thus, the corresponding air-bag deployment mouth position in the said interior automotive trim trim that contains the air-bag deployment oral area all is necessary to be provided with the thin-walled place (being called break line or divisural line sometimes again) of the predetermined break line of conduct that can be made the definite expansion of safety air bag by the expansion power of safety air bag.In addition, in order not reduce the stereo decoration of the inside of automotive trim that contains the air-bag deployment mouth, all wish the predetermined break line of stealth that is shaped and goes out to the eye at the inside face of the interior automotive trim trim that contains the air-bag deployment oral area.
At this,, used the thermal cut-out instrument of laser knife, high frequency waves cutter, ultrasonic knife, heated blade etc. for the stealthy predetermined break line of inside face shaping from epidermis.Because of easily making the inside of automotive trim generation fire damage that contains the air-bag deployment mouth with this class heating parting tool, thus, open in the 2000-95056 communique the spy, the processing cutter through heating of use pectination is as shown in figure 21 disclosed.
In addition, in the Te Kaiping 6-218811 communique, disclose as shown in figure 22, on the lamellar epidermis 211 that constitutes by thermoplastic plastic during the shaping ditch, with with 241 pairs of lamellar epidermises 211 of the corresponding extruder member of the shape of ditch the time with the extruding of specific power, the method that melts with super sonic.
In addition, contain the method that stealth contains the interior automotive trim trim of air-bag deployment oral area as manufacturing, the spy opens in the 2000-351335 communique, manufacture method is as shown in figure 23 disclosed, it possesses the thin-walled machine table 265 that the epidermis 262 that contains air-bag deployment mouth end can be turned over and adjust is arranged, and be located on the thin-walled machine table 265 above by upturned epidermis, along being formed on break line processing on the guide body 267 with the cutting tool 270 of guide groove 266 machinable epidermises.
Also have, open in the 2000-159047 communique the spy, manufacture method is as shown in figure 24 disclosed, when the epidermis that will be used to contain the car inner part of air-bag deployment oral area carries out vacuum forming, with epidermis thin plate 221 thermoplastics, attract setting by vacuum forming mould 223, keeping under the state that is attracted by vacuum forming mould 223, with the shaping position of processing cutter 227 extruding epidermises, form the predetermined portion 222 of breaking of ditch shape with the corresponding predetermined portion 222 of breaking on the epidermis 211 of the air-bag deployment mouth of thin plate.
But, when being used in the spy and driving the pectination put down in writing in the 2000-95056 communique processing cutter and be shaped predetermined break line through heating, continuous line can not be shaped, as when containing interior automotive trim trim in uneven thickness of air-bag deployment oral area, be difficult to constitute make the below that is positioned at the interior automotive trim trim that contains the air-bag deployment oral area safety air bag by the definite open structure of the expansion power of safety air bag.In addition, even the special processing cutter of pectination through heat of being put down in writing in the 2000-95056 communique etc. of opening still because the heat absorption capacity of the knife edge is excessive, also found its easy problem to the heat affecting that generation is bigger on every side.Therefore, when the thickness of epidermis relatively approaches, find to go out to be scheduled on the face of it the existence of break line, easily reduced the problem of the stereo decoration of line shape processing.Also have, when measuring the degree of depth of predetermined break line for usefulness optics determining film thickness device, must use has the processing cutter of larger area pectination through heating.
In addition, be shaped special when opening the ditch of being put down in writing in the flat 6-218811 communique (predetermined break line), found since the thermoplastic plastic of fusing remain in ditch around, produced concavo-convex problem.Therefore, when the thickness of epidermis relatively approaches, find to go out to be scheduled on the face of it the existence of break line, reduced the problem of the stereo decoration of line shape processing.In addition, because that inside face has produced is concavo-convex, the problem of having found and having reduced as the adhesive bonding property between the foaming layer of lower floor.Also have, when measuring the degree of depth of ditch for usefulness optics determining film thickness device, must use has the larger area extruded material, the feasible interior automotive trim trim that contains the air-bag deployment oral area that is difficult to provide better precision and hidden property (non-visuality).
In addition, when the spy that is shaped opens the divisural line of being put down in writing in the 2000-351335 communique (predetermined break line), found that by the thin-walled machine table epidermis can be bent to inside face is concavity, therefore, when the epidermis after the divisural line shaping is shakeout, the inside face that contains the epidermis of divisural line can form bigger concavo-convex, and it is difficult to the problem that evenly is shaped with foaming layer etc.And when the epidermis after divisural line is shaped shakeout, the part that forms divisural line became open state, deterioration its hidden property (non-visuality) for the surface.
Also have, when the spy that is shaped opens the predetermined cracking unit of being put down in writing in the 2000-159047 communique (predetermined break line), owing to keeping under the state that is attracted by the vacuum forming mould, on the epidermis thin plate, be shaped and give the bonding part corresponding to the skin breakage of air-bag deployment mouth, the sheet position deviation that epidermis is used is less, can when return chamber's temperature state, just be difficult to the shaping position of the predetermined cracking unit of correct control because of epidermis is subjected to thermal softening with thin plate.In addition, when having found to shakeout the cracking reservations after the shaping, can form at the epidermis inside face that contains the reservations that ftractures bigger concavo-convex, deterioration its hidden property, and be difficult to and the even problem of shaping such as foaming layer.In addition, when opening the degree of depth of the predetermined cracking unit of being put down in writing in the 2000-159047 communique in order to measure the spy with optics determining film thickness device, the predetermined cracking unit of the ditch shape of necessary shaping broad.
At this, the present invention has overcome these weakness, having reached provides the air-bag deployment that can not judge from the surface on automobile steering wheel or the gauge panel, and, can be easily and accurately measure the interior automotive trim trim that contains the air-bag deployment oral area of the thickness of predetermined break line, the purpose of its manufacture method and manufacturing installation with optics determining film thickness device.
Summary of the invention
According to the present invention, a kind of interior automotive trim trim that contains the air-bag deployment oral area that has through the epidermis of the processing that is shaped can be provided, on the corresponding position that safe automobile air bag is set of the inside face of this epidermis, when the predetermined break line of the degree of depth and epidermal surface is set, should predetermined break line when epidermis bends to inside face and is raised position, substantial being " V " word the interior automotive trim trim of ditch shape.
After adopting such structure, when only the inside face that bends to epidermis at the interior automotive trim trim that will contain the air-bag deployment mouth is raised position, be formed in predetermined break line in the epidermis and be the ditch shape of substantial " V " word, thereby can provide a kind of superior hidden property that has, and under the expansion power of set air-bag deployment mouth, the air-bag deployment mouth can be easily and the interior automotive trim trim that launches definitely.In addition, after so predetermined break line has been arranged, when being raised position, substantially be the ditch shape of " V " word because of the inside face that will bend to epidermis, available optics determining film thickness device is measured the degree of depth of being scheduled to break line easily and accurately as laser type or infrared-type determining film thickness device.
In addition, when making the interior automotive trim trim that contains the air-bag deployment oral area of the present invention, when epidermis is shakeout, preferably make the surface (inside face of epidermis) that contains predetermined break line substantially be flat condition.
In addition, according to other attitude of the present invention, preparing and carrying in the interior automotive trim trim manufacture method that contains the air-bag deployment mouth of the finished epidermis that is shaped in manufacturing, is feature with the operation that contains following (A)～(C) successively:
(A) epidermis is the operation of substantial flat condition ground mounting to the brace table;
(B) with the operation of the predetermined break line of processing the cutter shaping degree of depth and epidermal surface;
(C) under the opening-like attitude of otch of predetermined break line, measure the degree of depth of this predetermined break line or the operation of residual thickness.
After adopting such enforcement, because of the interior automotive trim trim substantially remains under the flat condition, so the predetermined break line that has been shaped is can be accurately and the predetermined break line of promptly be shaped all degree of depth or residual thickness homogeneous.Therefore, can provide to have good hidden property, band can be easily and the interior automotive trim trim of the air-bag deployment oral area that launches definitely under set expansion power.In addition, under the opening-like attitude of otch of predetermined break line, for measuring the degree of depth or residual thickness of predetermined break line, available determining film thickness device is measured quickly and accurately as laser type or infrared-type determining film thickness device.
In addition, when implementing the manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of the present invention, in (C) operation, preferably can rise to institute's take the altitude with being placed on the brace table thrust, push the otch that struts predetermined break line by the below of epidermis.
In addition, according to other formula of the present invention, having in manufacturing in the interior automotive trim trim manufacture method that contains the air-bag deployment mouth of the epidermis of processing through being shaped, is feature with the operation that contains following (a)～(c) successively:
(a) make the inside face of epidermis be the part of crooked epidermis of raised position or all operations;
(b) do not reach the operation of predetermined break line of the epidermal surface of the interior automotive trim trim that contains the air-bag deployment mouth with the processing cutter shaping degree of depth;
(c) under the opening-like attitude of otch of predetermined break line, measure the degree of depth of this predetermined break line or the operation of residual thickness.
After adopting such enforcement, can provide efficiently to have good hidden property, band can be easily under desired expansion power and the interior automotive trim trim that contains the air-bag deployment oral area that launches definitely.In addition, under the opening-like attitude of otch of predetermined break line, for measuring the degree of depth or residual thickness of predetermined break line, available determining film thickness device is measured quickly and accurately as laser type or infrared-type determining film thickness device.
In addition, according to other other formulas of the present invention, the manufacturing installation of the interior automotive trim trim that a kind of manufacturing contains the air-bag deployment oral area can be provided, it is characterized by in manufacturing and have in the interior automotive trim trim manufacturing installation that contains the air-bag deployment mouth of the epidermis of processing through being shaped, have and make epidermis be the substantially brace table of flat condition mounting, and the processing cutter of the predetermined break line that on epidermis, is shaped, and when being used for measuring the degree of depth of predetermined break line or residual Determination of thickness device, under the opening-like attitude of predetermined break line, measure the degree of depth or residual thickness of predetermined break line by this determinator.
After adopting such formation, because of the interior automotive trim trim substantially remains under the flat condition, so the predetermined break line that has been shaped is can be accurately and the predetermined break line of promptly be shaped all degree of depth or residual thickness homogeneous.Therefore, can provide efficiently to have good hidden property, under the expansion power of set full air bag exhibition, can be easily and the interior automotive trim trim that contains the air-bag deployment oral area that launches definitely.In addition, under the opening-like attitude of otch of predetermined break line, for measuring the degree of depth or residual thickness of predetermined break line, available determining film thickness device is measured quickly and accurately as laser type or infrared-type determining film thickness device.
In addition, when the manufacturing installation of the design interior automotive trim trim that contains the air-bag deployment oral area of the present invention, preferably to have the position detection means that is used for detecting the processing cutter position.
In addition, when the manufacturing installation of the design interior automotive trim trim that contains the air-bag deployment mouth of the present invention, preferably to have the state-detection means that are used for detecting processing cutter state.
In addition, when the manufacturing installation of the design interior automotive trim trim that contains the air-bag deployment mouth of the present invention, preferably the attraction portion that is used for fixing epidermis to be set on brace table.
Description of drawings
It is the sectional drawing of the interior automotive trim trim that contains the air-bag deployment oral area of first example that Fig. 1 (a) reaches (b).
Fig. 2 (a)～(c) is for being used for illustrating the instruction diagram (one) of powder rolling screw-threads forming process.
Fig. 3 (a)～(c) is for being used for illustrating the instruction diagram (its two) of powder rolling screw-threads forming process.
Fig. 4 is the oblique drawing (one) of the laminal object of example.
Fig. 5 is the oblique drawing (its two) of the laminal object of example.
Fig. 6 (b) is the instruction diagram of the predetermined break line state after the epidermis planarization; Fig. 6 (a) is the instruction diagram of the opening-like attitude of otch of predetermined break line.
Fig. 7 (a) is the instruction diagram of the shape (two ends arrow shape of tail) of predetermined break line; Fig. 7 (b) is the instruction diagram of other shapes (" H " word shape) of predetermined break line; Fig. 7 (c) is the instruction diagram of the other shape (the anti-electric arc shape in two ends) of predetermined break line.
The instruction diagram (one) of the thrust that (a)～(c) of Fig. 8 uses when the otch of the predetermined break line of Fig. 7 (a)～(c) is strutted.
(a)～(f) of Fig. 9 is the instruction diagram of manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of second example.
(a)～(f) of Figure 10 is other the instruction diagram of manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area.
Figure 11 is the instruction diagram of explanation determining film thickness program.
Figure 12 is the instruction diagram that other determining film thickness program is described.
(a)～(e) of Figure 13 is the instruction diagram (one) of manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of the 3rd example.
(a)～(d) of Figure 14 is the instruction diagram (its two) of manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of the 3rd example.
Figure 15 is the oblique drawing of manufacturing installation of the interior automotive trim trim that contains the air-bag deployment oral area of the 4th example.
The instruction diagram (its two) of the thrust that (a)～(c) of Figure 16 uses when the otch of the predetermined break line of Fig. 7 (a)～(c) is strutted.
(a)～(f) of Figure 17 is the instruction diagram of the shape of thrust.
(a)～(f) of Figure 18 is the instruction diagram of the warpage example of thrust.
(a)～(b) of Figure 19 is the instruction diagram that detects the method for processing cutter state.
(a)～(c) of Figure 20 is when measuring thickness with the determining film thickness device, contains the sectional drawing on the surface of predetermined break line.
Figure 21 is the instruction diagram (one) of the manufacture method of the existing interior automotive trim trim that contains the air-bag deployment oral area.
Figure 22 is the instruction diagram (its two) of the manufacture method of the existing interior automotive trim trim that contains the air-bag deployment oral area.
Figure 23 is the instruction diagram (its three) of the manufacture method of the existing interior automotive trim trim that contains the air-bag deployment oral area.
Figure 24 is existing other the instruction diagram (its four) of manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area.
The specific embodiment
Below, suitably with reference to accompanying drawing, specifically describe about the manufacturing installation of the interior automotive trim trim that contains the air-bag deployment oral area of the present invention and use the example of the manufacture method of these devices.
[first example]
First example is as (a) of Fig. 1 and (b), for having the interior automotive trim trim 10 that contains the air-bag deployment mouth through the epidermis 11 of the processing that is shaped, being provided with on safe automobile air bag 21 opposite positions 12 on the inside surface A of this epidermis 11, when the predetermined break line 17 do not reach epidermis 11 surperficial B is set, should predetermined break line 17 when epidermis 11 bends to inside face and is raised position, substantial being the ditch shape of " V " word be the interior automotive trim trim 10 that contains the air-bag deployment oral area of feature.
Yet, in the following description, sometimes the commercial veneer beyond base material that having on the interior automotive trim trim that contains the air-bag deployment oral area as shown in Figure 1 accommodated the safety air bag function and the foaming layer abbreviates epidermis as, or the integral body of general's interior automotive trim trim that contains the air-bag deployment oral area as shown in Figure 1 abbreviates epidermis as sometimes.
1 contains the interior automotive trim trim of air-bag deployment oral area
(1) kind
There is not special restriction though contain kind used in the interior automotive trim trim of air-bag deployment oral area through the finished epidermis that is shaped, but the most handy meeting, for example through the stereo structure thing of the profile of the shaping things such as finished laminal object or automobile component that are shaped for well.And, preferably to pass through decorative machining through finished epidermis, have concave-convex surfaces such as line shape processing or embossed pattern as the surface, or be printed with pattern, literal, mark etc., again or with surface grinding, improve its flatness.
In addition, preferably constitute through the finished epidermis that is shaped, but it does not also have particular restriction to its kind by thermoplastic resin or heat-curing resin.But consider the actual environment for use of the interior automotive trim trim that contains the air-bag deployment oral area, even when the higher temperatures more than 70 ℃, when keeping good mechanical strength, under the low-temperature condition below 0 ℃, also can keep good elasticity and feel, preferably will use thermoplastic elastomers such as thermoplasticity polyurethane elastomer, thermoplasticity styrenic elastomer, thermoplasticity naphthalene elastic body, thermoplasticity olefin elastomer.
In addition, kind about thermoplastic resin or heat-curing resin, preferably use the resin of the carried out powder rolling screw-threads shaping as Fig. 2 (a)～(c) and Fig. 3 (a)～(c) shown in, as above-mentioned thermoplastic elastomer or B level epoxy branch, again or ethylene chloride resin.
Its reason is, making when being shaped finished epidermis, can carry out the powder rolling screw-threads as it and be shaped, then can be easily and the large-scale and complex-shaped epidermis used of the automobile that accurately is shaped.
Yet, when being shaped, conducting powder end rolling screw-threads in the employed resin, preferably to add inorganic matters such as zeolite or calcium carbonate, added the powdered resin of 0.1～30% unit of weight scope as using with respect to entire amount.Its reason be since added quantitative inorganic matter, in the dispersiveness that has improved powdered resin, also significantly improved decoration processability through the finished epidermis that is shaped.
(2) form
In addition, the form of epidermis that contains the interior automotive trim trim of air-bag deployment oral area there is no special restriction, used epidermis on the available preceding gauge panel, the car door shown in Fig. 4 (b), the seat shown in Fig. 4 (c), the control box shown in Fig. 5 (a), the automobile components such as energy disperser shown in Fig. 5 (b) shown in Fig. 4 (a).
In addition, as the variation of the interior automotive trim trim that contains the air-bag deployment oral area, the composite construction that also available above-mentioned epidermis and metalwork, ceramic, glasswork, paper products, woodwork etc. constitute.
(3) thickness
In addition, contain used epidermis in the interior automotive trim trim of air-bag deployment oral area,, preferably as with it fix on value in 0.5～5mm scope though its thickness is not had special restriction.
Its reason is, the thickness of used epidermis is as less than 0.5mm, and the predetermined break line that just is difficult to be shaped maybe may reduce its hidden property; And if the thickness of used epidermis is greater than 5mm, when the expansion power of safety air bag takes place, may make again the air-bag deployment mouth really cutting spread open the difficulty that becomes.
Therefore, the thickness that will contain epidermis used in the interior automotive trim trim of air-bag deployment oral area fixes on the interior value of 0.7～3mm scope for better, and the value in 0.9～2mm scope is best.
(4) lamilated body
In addition, about containing the interior automotive trim trim of air-bag deployment oral area, as Fig. 1 (a) and (b), on the inside surface A of epidermis 11, preferably constitute by the lamilated body that has foaming layer 13 and be used for accommodating the base material 15 of safety air bag 21 usefulness, wherein on base material 15, the place of dehiscing of the air-bag deployment mouth 18 of meeting opening is provided with thinner wall section 19 when taking place along the expansion power at safety air bag 21.
During its reason, foaming layer by the inside face of epidermis not only can obtain good stereo decoration and feel, when the expansion power of air-bag deployment mouth is had an effect, again because foaming layer is softer, very easily make the epidermis fracture, the air-bag deployment mouth can be launched definitely by foaming layer.In addition, when like this safety air bag being accommodated, with special base material thinner wall section is set along the air-bag deployment mouth again, when can improve the accommodating property of safety air bag, when the power of opening of safety air bag exhibition was had an effect, the air-bag deployment mouth can more properly launch.
2 predetermined break lines
(1) configuration and form
About the configuration (shaping position) of predetermined break line, as Fig. 1 (a) with (b), being feature on the inside surface A that is located at epidermis 11.That is to say,, can guarantee that the interior automotive trim trim 10 that contains the air-bag deployment oral area has required hidden property because predetermined break line 17 is not positioned at the surface of epidermis 11.
In addition, about the form of predetermined break line, shown in Fig. 6 (a), with when epidermis 11 being bent to inside surface A be raised position, the ditch shape that substantially is " V " word is a feature.
That is to say that even temporary transient, because the ditch shape of flexible one-tenth " V " word, also available optical profile type determining film thickness device is measured the degree of depth of being scheduled to break line easily and accurately.
In addition, the form about predetermined break line shown in Fig. 6 (b), is preferably in when shakeouing epidermis 11, makes the inside surface A of the epidermis that contains predetermined break line 17 substantially be flat condition.
During its reason, because the inside face of epidermis is as being common running condition, just can not produce concavo-convex because of predetermined break line, and can substantially be flat condition, even it is itself and foaming layer or substrate layer is fashionable, be not only laminated becoming easily, also can between the inside face of epidermis and foaming layer or base material, obtain better binding power.
Yet, as the roughly standard of the flatness of the inside face of estimating epidermis, preferably with as implement in the finger touch test, it is good not having concave-convex sense.
(2) shape
In addition, about the shape (type) of predetermined break line, preferably with the straight line of one or more with in its vertical direction or constitute good jointly with its straight line or curve that intersects obliquely.
Its reason is, adopt constitute like this after, the predetermined break line that not only is shaped easily, when the expansion power of air-bag deployment mouth was had an effect, the air-bag deployment mouth can launch definitely along predetermined break line.
In addition, about the concrete combination of straight line and curve, the preferably two ends arrow shape of tail shown in Fig. 7 (a), or the integral body shown in Fig. 7 (b) is " H " word shape, is the two ends arcuation again or as Fig. 7 (c).
Its reason is, as be the two ends arrow shape of tail shown in Fig. 7 (a), only utilize straight line and the oblique line of one or more, can be easily and when duplicability forms predetermined break line well, when the expansion power of safety air bag was had an effect, the air-bag deployment mouth can more properly launch along predetermined break line.In addition, as be " H " word shape shown in Fig. 7 (b), only utilize straight line and perpendicular crossing straight line, can be easily and when duplicability forms predetermined break line well, when the expansion power of safety air bag was had an effect, the air-bag deployment mouth can launch definitely along predetermined break line.Also have, as be Fig. 7 (c) and be the anti-electric arc shape in two ends, the air-bag deployment mouth can more properly launch along the predetermined break line that is made of a horizontal linear and two semi arch curves.
Yet,, preferably to use shown in Fig. 8 (a)～(c) through modeled thrust in order to obtain the predetermined break line of shape (type) shown in Fig. 7 (a)～(c).
(3) degree of depth
In addition, the degree of depth of predetermined break line is preferably in the switching of considering the air-bag deployment mouth and the balance of hidden property, or decision again behind the mechanical strength etc., for example preferably fixes on value in 0.1～1mm scope for well.
Its reason is that the degree of depth of said predetermined break line can obviously reduce the switching of air-bag deployment mouth as less than 0.1mm; And if the degree of depth of said predetermined break line during greater than 1mm, then might make the mechanical strength of its hidden property and epidermis obviously reduce.
Therefore, the degree of depth of predetermined break line is better with the value in 0.2～0.8mm scope, the value the best in 0.3～0.7mm scope.
In addition, about the degree of depth of predetermined break line, be preferably in the thickness decision more afterwards of having considered epidermis.That is to say, the thickness of epidermis is made as t 1(mm) degree of depth of predetermined break line is made as t 2(mm) time, to satisfy relational expression t 1* 0.3＜t 2＜t 1* 0.7 is good.
Its reason is the degree of depth t of said predetermined break line 2As less than t 1* 0.3, might obviously reduce the switching of air-bag deployment mouth; And if the degree of depth t of said predetermined break line 2Greater than t 1, the mechanical strength of its hidden property and epidermis is obviously reduced at * 0.7 o'clock.
Therefore, about the degree of depth of predetermined break line, to satisfy relational expression t 1* 0.4＜t 2＜t 1* 0.6 for better.
(4) width
In addition, the width of predetermined break line is preferably got shown in Fig. 6 (a), with when epidermis 11 being bent to inside surface A be raised position, the value that substantially is the ditch shape of " V " word, shown in Fig. 6 (b), when shakeouing epidermis 11, the value that makes epidermis 11 inside surface A that contain predetermined break line 17 substantially be flat condition is good.
Therefore, the width of predetermined break line is good with the value in 0.005～0.2mm scope for example, and the value in 0.01～0.1mm scope is for better, and the value in 0.02～0.08mm scope is the best.
[second example]
Second example of the present invention is shown in Fig. 9 (a)～(f), having in the interior automotive trim trim manufacture method that contains the air-bag deployment oral area of the finished epidermis 11 that is shaped in manufacturing, is the manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of feature with the operation that contains following (A)～(C) successively:
(A) epidermis 11 is the operation of substantial flat condition ground mounting to brace table 31;
(B) with the operation of the predetermined break line 17 on processing the cutter 35 shaping degree of depth and epidermis 11 surfaces;
(C) under the opening-like attitude of otch of predetermined break line 17, measure the degree of depth of this predetermined break line or the operation of residual thickness.
Yet, in second example in used interior automotive trim trim manufacturing installation that contains the air-bag deployment oral area and following the 4th example illustrated device be same device, so in this description will be omitted.
1 preparatory process
Operation (A) in implementing second example preferably will prepare to contain the epidermis in the interior automotive trim trim of air-bag deployment oral area before.That is to say that epidermis illustrated in these epidermises and first example is the same, so in this description will be omitted.
2 operations (A)
Operation in second example (A) is as Fig. 9 (a) and (b), for being the operation of substantial flat condition ground mounting to the brace table 31 through the finished epidermis 11 that is shaped.
For example, shown in Fig. 9 (a), be ready to be provided with the thrust moving up and down 33 of certain height, after being the brace table 31 of substantial flat condition, preferably shown in Fig. 9 (b), with the surperficial B of epidermis 11 down, that is to say, with the inside surface A of epidermis 11 up mounting to the brace table 31 that has thrust 33.
In addition, after the mounting epidermis, preferably from the face side of epidermis by attracting the hole with attractions such as vacuum pumps.Its reason is, with epidermis by such attraction, even large-scale or complex-shaped epidermis also can temporarily be fixed on desired position.In addition, epidermis by such attraction, when break line is scheduled in shaping, can be prevented the offset of epidermis or the reduction of predetermined break line forming accuracy etc. effectively.Also have, different with mechanical Fixing Method, because epidermis is attracted to fix, epidermis can be moved rapidly.
In addition, as the fixation of epidermis 11, preferably use at the inside face of epidermis as shown in figure 10 and cover material 65.
Its reason is, adopt such formation after, when on epidermis, being shaped predetermined break line, can be reduced in the set possibility that outer part is cut off of sentencing, can be accurately and the operation of the predetermined break line of promptly on epidermis, implementing to be shaped.
Yet, cover material and preferably constitute, and peristome is set at ad-hoc location by metal.
3 operations (B)
Operation in second example (B) is shown in Fig. 9 (c), with the operation of the predetermined break line 17 of processing the cutter 35 shaping degree of depth and epidermis 11 inside surface A.At this,, from for the interior automotive trim trim of the air-bag deployment mouth that contains epidermis that can obtain good stealth the time, from the viewpoint of cheapness, preferably use cutter or razor again as the processing cutter.
But manufacturing method according to the invention, owing to be to cut off in that epidermis is under the state of distortion, therefore, even use heating parting tool also can be more accurately and the predetermined break line that flatly is shaped, so, also can use laser knife, high frequency waves cutter, ultrasonic knife, heated blade etc. separately, or also use with other non-hot type parting tools.
In addition, reach enforcement operation (B) before afterwards in enforcement operation (B), or one of them, the state of processing cutter preferably will be checked.
Its reason is that the state of inspection processing cutter can more correctly be controlled at the degree of depth of the predetermined break line that is shaped on the epidermis or the thickness of residual portion before the predetermined break line that is shaped; And after the predetermined break line that is shaped, check the state of processing cutter, detecting the knife edge when impaired, but the operation of shutdown feature is changed and is processed cutter.
In addition, in operation (B), when using the shaping of processing cutter to be scheduled to break line, preferably to control the temperature of used processing cutter.That is to say,, just be difficult to the predetermined break line that is shaped quickly and accurately so sometimes because of the processing cutter in use has in excessive temperature rises.
Therefore, the temperature of processing cutter is good to be controlled at 0～50 ℃ of value in the scope, and the value in 10～40 ℃ of scopes is for better, and the values in 20～35 ℃ of scopes are the best.
Yet the temperature of said processing cutter preferably directly shows by heat conductor, and also available infrared thermometer etc. carries out non-contacting measurement.
4 operations (C)
Operation in second example (C) is as Fig. 9 (e) and (f), for with the predetermined break line on the inside surface A of epidermis 11 as substantial summit, make skin deformation, under the opening-like attitude of the otch of said predetermined break line 17, measure the degree of depth of this predetermined break line 17 or the operation of residual thickness.
For example, shown in Fig. 9 (e), from surperficial B (inner surface side of the predetermined break line) side that places the epidermis 11 on the brace table 31, the part that predetermined break line 17 is arranged with thrust 33 extrusion moldings moving up and down, when opening the otch that is formed in the predetermined break line 17 on the epidermis 11, shown in Fig. 9 (f), measure the degree of depth of predetermined break line 17 or the operation of residual thickness with determining film thickness device 39.
That is to say, under the opening-like attitude of otch of predetermined break line, measure the degree of depth of predetermined break line etc. like this, can improve the hidden property of interior automotive trim trim, even the width at predetermined break line is narrower, or the degree of depth is when more shallow, also can be easily and measure the degree of depth of predetermined break line or the thickness of residual portion definitely.
Yet, Figure 11 and Figure 12 illustration measure the example (laser measurement program) of measurement procedure of the degree of depth of predetermined break line.
In addition, about the method for measurement of the thickness of the degree of depth of measuring predetermined break line or residual portion, preferably to measure at least more than 2 places to good, 3 places are above for better.Its reason is to measure by such many places, even under the situation in uneven thickness of the finished epidermis that is shaped, also can obtain aviation value.Therefore, the predetermined uniformly break line of the integral thickness that can be shaped, when the expansion power of air-bag deployment mouth was had an effect, the air-bag deployment mouth can launch definitely along predetermined break line.
Yet, before the predetermined break line that is shaped on the epidermis, preferably also to measure thickness through the finished epidermis that is shaped.Its reason is, by before and after the predetermined break line that is shaped, measuring thickness like this, and the more uniform predetermined break line of the integral thickness that can be shaped, when the expansion power of air-bag deployment mouth was had an effect, the air-bag deployment mouth can more properly launch along predetermined break line.
[the 3rd example]
The 3rd example is shown in Figure 13 (e)～(f), having in manufacturing in the interior automotive trim trim manufacture method that contains the air-bag deployment mouth of the epidermis of processing through being shaped 11, is the manufacture method of the interior automotive trim trim of feature with the operation that contains following (a)～(c) successively:
(a) make the inside surface A of epidermis 11 be the part of crooked epidermis of raised position or all operations;
(b) do not reach the operation of predetermined break line 17 of the epidermal surface of the interior automotive trim trim that contains the air-bag deployment oral area with the processing cutter 35 shaping degree of depth;
(c) under the opening-like attitude of otch of predetermined break line 17, measure the degree of depth of this predetermined break line 17 or the operation of residual thickness.
Yet because of the manufacture method of the 3rd example is the predetermined break line that is shaped under the raised position except epidermis being bent to inside face, other the content with second example is substantially consistent, at this, is that the center describes with operation (a).
1 preparatory process
Operation (a) in implementing the 3rd example before, and is the same with second example, preferably will prepare to contain the epidermis in the interior automotive trim trim of air-bag deployment oral area.
2 operations (a)
The operation of said the 3rd example (a) is that the epidermis inside face is shaped predetermined break line place as substantial summit, with epidermis flexural deformation, makes the inside face of epidermis be the part of crooked epidermis of raised position or all operations.
That is to say that after such enforcement, its bending is under the raised position, the ditch shape of " V " word that can be shaped easily is scheduled to break line, and available optics determining film thickness device fathoms accurately also easily.
(1) bending method 1
At this, though the bending method in the said operation (a) is not had particular restriction, but preferably for example shown in Figure 13 (a), after being ready to be provided with the brace table 31 of thrust 33 moving up and down, shown in Figure 13 (b), with the surperficial B of epidermis 11 down, that is to say, with the inside surface A of epidermis 11 up mounting to brace table 31.
Then, shown in Figure 13 (c), from the B face (inside face one side of predetermined break line) that places the epidermis 11 on the brace table 31, shaping place 27 of the predetermined break line 17 of the most handy thrust 33 extruding moving up and down makes the only crooked at decide place of epidermis.
Its reason is that after adopting such enforcement, thickness and material regardless of epidermis all can pass through this thrust moving up and down, make any place of epidermis bend to arbitrary shape, can be easily and a plurality of difform predetermined break lines that accurately are shaped.
(2) bending method 2
In addition, as the bending method in the operation (a), also can shown in Figure 14 (a), use be provided with both brace tables 31 of the thrust 33 of take the altitude fixed containing.That is to say, be ready to said brace table 31 after, preferably shown in Figure 14 (b), the B of epidermis 11 is faced down, more specifically, the A of epidermis 11 is faced up mounting to containing on the brace table 31 that is provided with both thrusts 33 of take the altitude, according to the accurately crooked epidermis 11 of set degree decide the place.
Its reason is, after adopting such enforcement, even during to the predetermined break line of a large amount of skin formings, also can promptly carry out institute and decide the bending of degree, can be easily and accurately shaping be scheduled to break line.In addition, by the height of change thrust, even easy manufacturing installation, also can be easily and a plurality of difform predetermined break lines that accurately are shaped.
(3) bending method 3
Yet, when implementing operation (a), with illustrate in second example the same, after the epidermis mounting, preferably attract with vacuum pump etc. from the face side of epidermis, or fix epidermis with the covering material in inside face one side of epidermis by the attraction hole.
3 operations (b) reach (c)
After implementing operation (a), preferably be as the criterion with second example, the predetermined break line that is shaped then, is the otch of this predetermined break line under the open state of " V " word shape, measures the degree of depth of predetermined break line or the thickness of residual portion.
[the 4th example]
The 4th example as illustrated in Figure 15, for having manufacturing installation 30 through the interior automotive trim trim that contains the air-bag deployment oral area of the epidermis 11 of the processing that is shaped, it is to make epidermis be the substantially brace table 31 of flat condition mounting to have, and the processing cutter 35 of the predetermined break line that on epidermis, is shaped, and when being used for measuring the degree of depth of predetermined break line or residual Determination of thickness device 39, under the opening-like attitude of predetermined break line, measure the degree of depth or residual manufacturing installation 30 that thickness is the interior automotive trim trim that contains the air-bag deployment oral area of feature of predetermined break line by this determinator 39.
Yet, because of the interior automotive trim trim that contains the air-bag deployment oral area in the 4th example and predetermined break line can be with first example in illustrated same formation, in this description will be omitted.
1 brace table
(1) essential structure
Essential structure as brace table, so long as can make the epidermis of the interior automotive trim trim that contains the air-bag deployment oral area be the structure of substantial flat condition ground mounting, there is no particular restriction, but preferably with shown in Figure 15 or Fig. 9 (a), when its top is substantially flat condition, be held the structure of horizontal direction.Then, be preferably in be provided with on the brace table 31 as described later that thrust 33 can move up and down like that and with the corresponding peristome 55 of thrust 33 shapes.
(2) thrust
1. construct
In addition, but best shown in Figure 15 or Fig. 9 (a), thrust 33 is set on brace table 31.
Its reason is, the below of the epidermis from the brace table that is to say, from inside face (surface of epidermis) side extruding thrust, the otch of predetermined break line is positively opened, and can easily and measure the degree of depth of predetermined break line or the thickness of residual portion definitely.
In addition, said thrust is from design and make simple viewpoint, and preferably its integral body that makes shown in Fig. 8 (a)～(c) constitutes single tectosome.But the shape according to thrust that also can be shown in Figure 16 (a)～(c) is made of a plurality of separate components (linearity thing or curve-like thing), makes all as separable thrust 33a.Its reason is, separable so in this way thrust structure when the part of thrust is moved up and down, can select only to allow the portions cut of thickness of the degree of depth of determined predetermined break line or residual portion open.Therefore, can measure its degree of depth etc. more accurately according to the shape and size of predetermined break line.
2. all shapes 1
In addition, about the type of thrust, preferably will by one or more the linearity thing and with this linearity thing in vertical direction or oblique crossing linearity thing or curve-like thing constitute.More particularly preferably to meet the shape (type) that is formed in supracutaneous predetermined break line.When the shape that for example is formed in supracutaneous predetermined break line is shown in Fig. 7 (a)～(c) shape (type), preferably the type shape of the thrust on the brace table to be made shape shown in Fig. 8 (a)～(c).
Its reason is by adopting such formation, even be formed in the complex-shaped of supracutaneous predetermined break line, also can allow the otch of predetermined break line open effectively.
3. shape 2
In addition, there is no special restriction, but be preferably in from the inside face extrusion molding when the supracutaneous predetermined break line, can allow the open thrust of otch of predetermined break line be good about the shape of the plumb cut of thrust.For example shown in each figure of Figure 17 (a)～(f), preferably plumb cut is made shapes such as the cylinder tangent plane that there is curved surface oblong, platform shape or front, square, needle-like tangent plane, semicircle.In addition, shown in Figure 18 (a)～(f), be preferably on thrust 33 top all or part of par 38 or recess 37 are set.
4. both take the altitude
In addition, both take the altitudes of the thrust that can rise also there is no particular restriction, but are good with both take the altitudes of said thrust with the value in the 0.1～10mm scope of the surface of distance brace table for example preferably.Its reason is that both take the altitudes of said thrust can not make the otch of predetermined break line fully open as less than 0.1mm, reduce the mensuration of optical unit; And both take the altitudes of said thrust then reduce its recessiveness sometimes or significantly reduce mechanical strength of epidermis etc. as greater than 10mm the time.
5. action
In addition, about the action of thrust, before predetermined break line 17 is shaped or after being shaped, move up and down with preferably wanting a part or whole part.For example, be preferably as shown in Figure 9, with epidermis 11 flatly mounting to the brace table 31 after, after for example it being attracted to fix, predetermined break line 17 is shaped when epidermis 11 is flat condition, then, thrust 33 moving up and down is risen, make the open structure of otch of the predetermined break line 17 that is formed on the epidermis 11 by the peristome 55 that is arranged on the brace table 31.
Its reason is, when being shaped predetermined break line 17, allowing thrust 33 reduce to than lower position, brace table 31 surfaces and makes epidermis be flat condition, and predetermined break line quickly and accurately can be shaped; And behind the predetermined break line 17 that is shaped, allow thrust 33 rise to than higher position, brace table 31 surfaces, the otch of predetermined break line is fully opened.
Yet, but because thrust a part or whole part moves up and down,, also can open the otch of the predetermined break line of being measured arbitrarily even predetermined break line is to be made of one or more straight line.
(3) attraction portion
In addition, as shown in figure 15, the attraction hole 23 that constitutes by a plurality of apertures that is connected with vacuum pump suction device (figure is slightly) etc. that preferably will be provided as attraction portion on the brace table 31.
Its reason is, adopt such formation after, even complex-shaped and large-scale epidermis also can attract it, temporarily be fixed to desirable position.Therefore, can effectively prevent the position deviation when predetermined break line is shaped, predetermined break line accurately is shaped.And, different with mechanical Fixing Method, adopt the attraction of epidermis to fix, epidermis is moved rapidly.
(4) processing cutter
The kind of processing cutter there is no special restriction, for example, can use separately or and with as laser knife, high frequency waves cutter, ultrasonic knife, heated blade etc. heat non-heating parting tools such as parting tool or cutter, razor, rotating knife, saw cutter, current, scroll saw cutter.
But, when epidermis was flat condition, the surface that contains predetermined break line also substantially was flat condition, simultaneously, from for the interior automotive trim trim that contains the air-bag deployment oral area that obtains good hidden property and cheap viewpoint, being good with cutter or razor.
(5) mensuration means
Shown in Fig. 9 (f), the mensuration means are under the opening-like attitude of otch of the predetermined break line 17 that is shaped by the processing cutter, be scheduled to the means of the measurement of the degree of depth of break line 17 or residual thickness, can be adjusted in institute's definite value scope according to the degree of depth that measured value will be scheduled to break line.
At this, also without particular limitation to the form of said mensuration means, can use as the determining film thickness device of optical profile type or the determining film thickness device of ultrasonic type etc.But, preferably use the determining film thickness device of optical profile type in order more correctly to measure and save the space.
(6) position detection means
In addition, the position detection means that is used for detecting processing knife up degree position preferably to be set.
Its reason is, detects the height and position of processing cutter aptly by set position detection means, can adjust the distance that keeps between processing cutter and epidermis in institute's definite value scope.Therefore, owing to be provided with position detection means, even when the thickness of epidermis etc. changes, the predetermined break line of also can be shaped quickly and accurately overall depth or residual homogeneous such as thickness.
Yet the position height of the processing cutter before predetermined break line is shaped or when being shaped will be shown in Figure 19 (a), can be by being located at apart from the set a distance (h of institute of the short transverse of the knife edge 35a that processes cutter 35 2) position detection means 32 adjust, detect as position detection means 32 by laser type.That is to say, can make it remain on definite value (h by the distance of METHOD FOR CONTINUOUS DETERMINATION position detection means 32 with brace table 31 surfaces 1), just can adjust the position height of processing cutter 35 indirectly.
Therefore, can be by moving the processing cutter maintaining part 36 be connected on the position detection means 32, make the position of the knife edge 35a of processing cutter 35 remain on surperficial specific range (h apart from brace table 31 3) the position, no matter how thickness of epidermis 11 etc. changes the predetermined break line of all can be shaped quickly and accurately overall depth or residual thickness homogeneous.
(7) state-detection means
In addition, the state-detection means that are used for detecting processing cutter state preferably to be set.Specifically, before the predetermined break line that is shaped, the knife edge structure in good condition that can determine the processing cutter to be arranged preferably.
Its reason is, by the state-detection means are set, can keep making the cut-out function of processing cutter to be in certain state, even when the kind of epidermis or thickness change, and the predetermined break line of also can be shaped quickly and accurately overall depth or residual thickness homogeneous.
In addition, by measuring the state of the knife edge of processing cutter, when detecting the damage that causes by wearing and tearing etc., can be in the shutdown feature running, the replacing of processing cutter.Therefore, can keep making in the automobile of predetermined break line overall depth or residual thickness homogeneous and use decorative element.
At this, the state of the knife edge of processing cutter can be shown in Figure 19 (b), by laser determination device or infrared ray determinator etc., turns back to same position h before the predetermined break line that is shaped by measuring maintaining part 36 1The time knife edge 35a ' position (h 3) with the position (h of original knife edge 2) the difference or the shape difference of projection detect the injury tolerance that causes by wearing and tearing etc.
Embodiment
[embodiment 1]
Shaping is made of thermoplasticity polyurethane elastomer (TPU), and the epidermis that set shape is arranged of line shape processing of executing the degree of depth and be 0.1mm is (perpendicular: 300mm * horizontal stroke: 450mm * thick: 1.0mm).Then, shown in Figure 17 (b), it is adjusted up and down, setting and in the thrust (platform shape thing) that give prominence on brace table (iron plate) surface, to be ready to have the brace table in a plurality of attractions hole.On brace table, make it be in the state that is attracted by vacuum the epidermis mounting.
Then, after the surface of confirming epidermis is in flat condition, by the predetermined break line of cutter (surface temperature: 25 ℃) shaping (desired depth: 0.5mm preset width: 0.01mm) as the thinner wall section that does not reach epidermal surface as the processing cutter.
Then, face side (inner surface side of predetermined break line) extruding thrust from epidermis, under the opening-like attitude of otch that keeps predetermined break line, the laser displacement table LC (Japanese KEYENCE corporate system) that is used as the determining film thickness device of laser type measures residual thickness of predetermined break line.Wherein, as the sectional drawing of Figure 20 (a) for the epidermis that contains predetermined break line among the embodiment 1 that measures gained, obviously as can be known, the otch of predetermined break line is the open state of " V " word shape.
Then, the interior surface layers on surface close shown in Fig. 1 (b) by urethane resin constitute thick for the foaming layer of 2mm and contain the interior automotive trim trim that contain air-bag deployment oral area of the polypropylene base of safety air bag as embodiment 1, implement following the evaluation.
(1) opening
Using by the thrust of brace table protrusion of surface 0.5mm has the epidermis of predetermined break line from the below extrusion molding, opens the otch of predetermined break line.Then, with its tangent plane shape of microscopic examination, be scheduled to the opening of the otch (tangent plane) of break line with following benchmark evaluation.
◎: " V " word ditch shape of equalization about otch is, opening is wide fully.
Zero: basic impartial " V " word ditch shape about otch is, opening is wide more abundant.
△: though impartial " V " word ditch shape about the otch substance is, opening is narrower.
*: the unsetting and opening not substantially of otch.
(2) hidden property
Place the white bulb of 100W as light source in the inner surface side of the epidermis that is formed with predetermined break line.Then, under light source is lit a lamp state, from the face side visual observations of epidermis, with the hidden property (non-visuality) of the predetermined break line of following benchmark evaluation.
◎: can not find out predetermined break line fully from face side.
Zero: can not find out predetermined break line basically from face side.
△: can find out the predetermined break line of a part from face side.
*: can obviously find out predetermined break line from face side.
(3) determining film thickness
Using by the thrust of brace table protrusion of surface 0.5mm has the epidermis of predetermined break line from the below extrusion molding, opens the otch of predetermined break line.Then, with residual thickness of the above-mentioned said predetermined break line in laser type determining film thickness measurement device 10 places.
◎: deviation of measuring value is below 5%.
Zero: deviation of measuring value is below 10%.
△: deviation of measuring value is below 20%.
*: deviation of measuring value surpasses 20%.
(4) extensibility of air-bag deployment mouth
Allow the air-bag deployment mouth of being accommodated launch, its result of visual observations is subjected to the extensibility of the interior automotive trim trim that the air-bag deployment mouth influences with following benchmark evaluation.
◎: launch along predetermined break line fully.
Zero: basic fully along predetermined break line expansion.
△: a part is launched along predetermined break line.
*: do not launch along predetermined break line
[embodiment 2]
Among the embodiment 2, except making the thrust projection 1mm that gives prominence to by the brace table surface, other all similarly to Example 1, the predetermined break line that is shaped on the epidermis (desired depth: 0.5mm preset width: 0.01mm), foaming layer and contain the interior automotive trim trim that contain air-bag deployment oral area of the polypropylene base of safety air bag on the inner surface side on surface is laminated as embodiment 2.Then, the interior automotive trim trim that this is formed with the epidermis of predetermined break line and contains the air-bag deployment oral area is implemented the evaluation identical with embodiment 1.
[embodiment 3]
Among the embodiment 3, except making the thrust projection 2mm that gives prominence to by the brace table surface, other all similarly to Example 1, the predetermined break line that is shaped on the epidermis (desired depth: 0.5mm preset width: 0.01mm), foaming layer and contain the interior automotive trim trim that contain air-bag deployment oral area of the polypropylene base of safety air bag on the interior surface layers side of epidermis is laminated as embodiment 3.Then, the interior automotive trim trim that this is formed with the epidermis of predetermined break line and contains the air-bag deployment oral area is implemented the evaluation identical with embodiment 1.
[embodiment 4]
Among the embodiment 4, on epidermis, be shaped when being scheduled to break line, shown in Figure 14 (c), with thrust by brace table protrusion of surface 0.5mm, the state that makes its inside face that bends to the surface be convex is shaped down and is scheduled to break line (desired depth: 0.5mm preset width: 0.01mm), in addition, similarly to Example 1, in the close foaming layer and contain the interior automotive trim trim that contain air-bag deployment oral area of the polypropylene base of air-bag deployment mouth of the interior surface layers on surface as embodiment 4.Then, the interior automotive trim trim that this is formed with the epidermis of predetermined break line and contains the air-bag deployment oral area is implemented the evaluation identical with embodiment 1.
[comparative example 1]
Comparative example 1 is the same with embodiment 1, except be scheduled to break line (desired depth: 0.5mm preset width: 0.01mm), carry out carrying out evaluation similarly to Example 1 outside the determining film thickness from the below extruding without thrust in shaping.That is to say, shown in Fig. 9 (a)～(d), be shaped on the epidermis give decide break line after, foaming layer and the polypropylene base that contains safety air bag 1 the interior automotive trim trim that contains the air-bag deployment oral area as a comparative example on inner surface side is laminated.Then, to this interior automotive trim trim that is formed with the epidermis of predetermined break line and contains the air-bag deployment oral area without thrust from below under the state of extruding, that is to say, be the evaluation of implementing under the flat condition similarly to Example 1 at epidermis.
Wherein, as the diagram of Figure 20 (b) for the sectional drawing of the epidermis that contains predetermined break line of film thickness measuring gained, obviously as can be known, because the not opening-like attitude of otch of predetermined break line, the thickness of the predetermined break line of mensuration is difficulty very.
[comparative example 2]
In the comparative example 2, except replacing the processing cutter (cutter) among the embodiment 1 with the heated blade that is heated to 150 ℃ when, do not use thrust, be at epidermis and carry out outside the determining film thickness under the flat condition, the same with embodiment 1, the predetermined break line that is shaped (desired depth: 0.5mm preset width: 0.01mm), foaming layer and the polypropylene base that contains safety air bag 2 the interior automotive trim trim that contains the air-bag deployment oral area as a comparative example on the inner surface side on surface is laminated.Then, the interior automotive trim trim that this is formed with the epidermis of predetermined break line and contains the air-bag deployment oral area is implemented the evaluation identical with embodiment 1.
Wherein, be the diagram of the sectional drawing that contains the epidermis of being scheduled to break line of film thickness measuring gained as Figure 20 (c), obviously as can be known, owing to used heated blade, the epidermis fusing makes having produced of predetermined break line concavo-convex on every side.
[comparative example 3]
In the comparative example 3, in the time of except the processing cutter (cutter) among the usefulness ultrasonic vibration cutter replacement embodiment 1, do not use thrust, be at epidermis and carry out outside the determining film thickness under the flat condition, the same with embodiment 1, (desired depth: 0.5mm preset width: 0.01mm), the polypropylene base that closes foaming layer and contain safety air bag in the interior surface layers on surface is 3 the interior automotive trim trim that contains the air-bag deployment oral area as a comparative example at the predetermined break line that is shaped.Then, the interior automotive trim trim that this is formed with the epidermis of predetermined break line and contains the air-bag deployment oral area is implemented the evaluation identical with embodiment 1.
Table 1
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Comparative example 1 Comparative example 2 Comparative example 3
The height of thrust (mm) ????0.5 ??1 ??2 ??0.5 ??0 ??0 ??0
Sink conditions Smooth Smooth Smooth Convex gulf song Smooth Smooth Smooth
Parting tool Cutter Cutter Cutter Cutter Cutter Heated blade The super sonic cutter
(mm) fathoms ??0.5 ??0.5 ??0.5 ??0.5 ??0.3 ??0.5 ??0.5
Measure width (mm) ??0.01 ??0.01 ??0.01 ??0.01 ??0.01 ??0.3 ??0.2
Opening ??○ ??◎ ??◎ ??○ ??× ??× ??×
Hidden property ??◎ ??◎ ??○ ??◎ ??◎ ??△ ??△
Determining film thickness ??○ ??◎ ??◎ ??○ ??× ??○ ??○
Extensibility ??○ ??◎ ??◎ ??○ ??△ ??○ ??○
Utilize possibility on the industry
According to the interior automotive trim trim that contains the air-bag deployment oral area of the present invention, on the corresponding position that safe automobile air bag is set of the inner surface of the epidermis that is consisted of by heat-curing resin or thermoplastic resin, Forming depth and epidermal surface, when epidermis bends to inner surface and is raised position, substantial being " V " word the predetermined break line of ditch shape, thus, can provide a kind of very easily with the degree of depth of the predetermined break line of the determining film thickness measurement device of optical profile type, have the interior automotive trim trim that contains the air-bag deployment oral area of good hidden property.
In addition, according to the manufacture method that contains the interior automotive trim trim of air-bag deployment oral area of the present invention, can provide efficiently be formed in the corresponding position of safe automobile air bag a kind of containing, can easily be measured by the determining film thickness device of optical profile type the interior automotive trim trim that contains the air-bag deployment oral area degree of depth and that can accurately control the predetermined break line of its set degree of depth of predetermined break line.
And, according to the manufacturing installation that contains the interior automotive trim trim of air-bag deployment oral area of the present invention, make epidermis be the brace table of substantial flat condition ground mounting and be used for being shaped when the processing cutter and being used for of predetermined break line measures the measurement means of the degree of depth of predetermined break line or residual thickness at epidermis having, under the opening-like attitude of otch of predetermined break line, measured the degree of depth or residual thickness of predetermined break line by this measurement means, thus, can provide a kind of and can on the corresponding position of safe automobile air bag deployment opening, the interior automotive trim trim that contains the air-bag deployment oral area of the predetermined break line that accurately is controlled at the set degree of depth be arranged.

Claims (21)

1. interior automotive trim trim that contains the air-bag deployment oral area that has through the finished epidermis that is shaped is characterized by:
On the corresponding position that safe automobile air bag is set on the inside face of this epidermis, in the time of the predetermined break line of the shaping degree of depth and epidermal surface, should predetermined break line when epidermis bends to inside face and is raised position, substantially be the ditch shape of " V " word.
2. as the said interior automotive trim trim that contains the air-bag deployment oral area of claim 1, when it is characterized by above-mentioned epidermis planarization, the above-mentioned inside face that contains the epidermis of predetermined break line is substantial flat condition.
3. as claim 1 or the 2 said interior automotive trim trims that contain the air-bag deployment oral area, it is characterized by above-mentioned predetermined break line and be by the straight line of one or more with in its vertical direction or constitute jointly with its straight line or curve that intersects obliquely.
4. as the said any interior automotive trim trim that contains the air-bag deployment oral area of claim 1～3, the thickness that it is characterized by above-mentioned epidermis is made as t 1(mm), the degree of depth of above-mentioned predetermined break line is made as t 2(mm) time, satisfy relational expression t 1* 0.3＜t 2＜t 1* 0.7.
5. as the said any interior automotive trim trim that contains the air-bag deployment oral area of claim 1～4, the inside face that it is characterized by above-mentioned epidermis has foaming layer and accommodates the base material of safety air bag.
6. as the said any interior automotive trim trim that contains the air-bag deployment oral area of claim 1～5, it is characterized by the powder rolling screw-threads formed products of above-mentioned epidermis for constituting by heat-curing resin or thermoplastic resin
7. a manufacturing has and contains in the manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of the finished epidermis that is shaped, and is feature with the operation that contains following (A)～(C) successively:
(A) above-mentioned epidermis is the operation of substantial flat condition ground mounting to the brace table;
(B) with the operation of the predetermined break line of processing the cutter shaping degree of depth and above-mentioned epidermal surface;
(C) under the opening-like attitude of the otch of above-mentioned predetermined break line, measure the degree of depth of this predetermined break line or the operation of residual thickness.
8. as the said manufacture method that contains the interior automotive trim trim of air-bag deployment oral area of claim 7, it is characterized by by attract above-mentioned epidermis to be fixed on the above-mentioned brace table from inner surface side.
9. as claim 7 or the 8 said manufacture methods that contain the interior automotive trim trim of air-bag deployment oral area, it is characterized by in above-mentioned (C) operation, the thrust that is arranged on the above-mentioned brace table is risen to institute's take the altitude, push the otch that launches predetermined break line from the below of above-mentioned epidermis.
10. as the said any manufacture method that contains the interior automotive trim trim of air-bag deployment oral area of claim 7～9, it is characterized by in above-mentioned (B) operation the height and position limit that frontier inspection the is surveyed above-mentioned processing cutter above-mentioned predetermined break line that is shaped.
11., it is characterized by and before above-mentioned (B) operation, contain the operation of checking above-mentioned processing cutter state as the said any manufacture method that contains the interior automotive trim trim of air-bag deployment oral area of claim 7～10.
12. as the said any manufacture method that contains the interior automotive trim trim of air-bag deployment oral area of claim 7～11, it is characterized by in above-mentioned (C) operation the degree of depth of the above-mentioned predetermined break line of determining film thickness measurement device of usefulness optical profile type or the thickness of residual portion.
13. a manufacturing has in the manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area that contains the epidermis of processing through being shaped, and is the manufacture method of the interior automotive trim trim that contains the air-bag deployment oral area of feature with the operation that contains following (a)～(c) successively:
(a) make the inside face of above-mentioned epidermis be the part of crooked epidermis of raised position or all operations;
(b) with the operation of the predetermined break line of processing the cutter shaping degree of depth and above-mentioned epidermal surface;
(c) under the opening-like attitude of otch of predetermined break line, measure the degree of depth of this predetermined break line or the operation of residual thickness.
14. as the said manufacture method that contains the interior automotive trim trim of air-bag deployment oral area of claim 13, it is characterized by in above-mentioned (a) operation, when above-mentioned epidermis being bent to inside face be raised position, when this epidermis mounting was to the base plate, extruding was arranged on the thrust on this base plate.
15. as claim 13 or the 14 said manufacture methods that contain the interior automotive trim trim of air-bag deployment oral area, it is characterized by in above-mentioned (a) operation, begin to move up and down the above-mentioned thrust of extruding from the below.
16. a manufacturing has the manufacturing installation of the interior automotive trim trim that contains the air-bag deployment oral area of the epidermis of processing through being shaped, and it is characterized by having
Make above-mentioned epidermis be substantial flat condition mounting brace table,
Be used on above-mentioned epidermis being shaped predetermined break line the processing cutter,
When being used for measuring the measurement means of the degree of depth of above-mentioned predetermined break line or residual thickness, under the opening-like attitude of otch of predetermined break line, measure the degree of depth or residual thickness of this predetermined break line by above-mentioned measurement means.
17. as the said manufacturing installation that contains the interior automotive trim trim of air-bag deployment oral area of claim 16, it is characterized by above-mentioned brace table be provided be used for from below the extruding above-mentioned epidermis thrust in, rise to this thrust both take the altitude pushes above-mentioned epidermis from the below.
18., it is characterized by above-mentioned thrust for the linearity thing of one or more with in its vertical direction or constitute jointly with its linearity thing or curve-like thing that intersects obliquely as claim 16 or the 17 said manufacturing installations that contain the interior automotive trim trim of air-bag deployment oral area.
19., it is characterized by the position detection means that has the height and position that detects above-mentioned processing cutter as the said any manufacturing installation that contains the interior automotive trim trim of air-bag deployment oral area of claim 16～18.
20., it is characterized by the state-detection means that are used for detecting above-mentioned processing cutter state that have as the said any manufacturing installation that contains the interior automotive trim trim of air-bag deployment oral area of claim 16～19.
21., it is characterized by and on above-mentioned brace table, have the attraction portion that is used for fixing above-mentioned epidermis as the said any manufacturing installation that contains the interior automotive trim trim of air-bag deployment oral area of claim 16～20.
CNB038251434A 2002-11-18 2003-06-11 Vehicle upholstery member having air bag door, and method and device for producing the same Expired - Fee Related CN100337858C (en)

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JP333297/2002 2002-11-18
JP2002333297 2002-11-18
JP82026/2003 2003-03-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102395451B (en) * 2009-04-17 2014-07-09 仲田涂覆株式会社 Airbag rupturing groove forming apparatus, and vehicular interior member manufacturing method
CN105033471A (en) * 2015-08-14 2015-11-11 武汉法利莱切焊系统工程有限公司 Laser weakening machining equipment
CN105563720A (en) * 2014-10-31 2016-05-11 通用汽车环球科技运作有限责任公司 Method of manufacturing a trim component with hidden tear pattern and trim component with hidden tear pattern
CN107696539A (en) * 2017-11-23 2018-02-16 延锋汽车内饰系统（上海）有限公司 A kind of manufacture method of automotive instrument panel skins
CN110978964A (en) * 2019-12-09 2020-04-10 烟台市帅恒机械科技有限公司 Novel vehicle escape window module convenient for quality inspection and use method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5744776A (en) * 1989-07-14 1998-04-28 Tip Engineering Group, Inc. Apparatus and for laser preweakening an automotive trim cover for an air bag deployment opening
JPH06218811A (en) * 1993-01-25 1994-08-09 Kansei Corp Method of forming groove on sheet-like member
JPH09156445A (en) * 1995-12-12 1997-06-17 Toyoda Gosei Co Ltd Air bag cover
DE19546585A1 (en) * 1995-12-13 1997-06-19 Trw Repa Gmbh Laminated vehicle airbag cover, for protecting vehicle occupants during collisions
JP2001233164A (en) * 2000-02-25 2001-08-28 Nishikawa Kasei Co Ltd Manufacturing device for air bag door skin material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102395451B (en) * 2009-04-17 2014-07-09 仲田涂覆株式会社 Airbag rupturing groove forming apparatus, and vehicular interior member manufacturing method
CN105563720A (en) * 2014-10-31 2016-05-11 通用汽车环球科技运作有限责任公司 Method of manufacturing a trim component with hidden tear pattern and trim component with hidden tear pattern
CN105563720B (en) * 2014-10-31 2018-02-09 通用汽车环球科技运作有限责任公司 Decorative element and its manufacture method with hiding breach pattern
CN105033471A (en) * 2015-08-14 2015-11-11 武汉法利莱切焊系统工程有限公司 Laser weakening machining equipment
CN107696539A (en) * 2017-11-23 2018-02-16 延锋汽车内饰系统（上海）有限公司 A kind of manufacture method of automotive instrument panel skins
CN110978964A (en) * 2019-12-09 2020-04-10 烟台市帅恒机械科技有限公司 Novel vehicle escape window module convenient for quality inspection and use method thereof
CN110978964B (en) * 2019-12-09 2021-02-05 苏州律点信息科技有限公司 Vehicle escape window module convenient for quality inspection and using method thereof

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