JP4399664B2 - Manufacturing method of epidermis - Google Patents

Description

The present invention relates to a process for the preparation of epidermis, More particularly, with skin foam molded origination foam between the skin and the substrate made of a flexible backing layer from the surface layer and the surface layer exposed to the outer surface foam The present invention relates to a method for manufacturing the skin constituting the molded member .

  The foamed molded member with a skin has a three-layer structure composed of a base material and a skin, and a foam interposed between the base material and the skin, and the base material made of a synthetic resin molded into a required shape The outer surface of the synthetic resin that is exposed to the outside improves the texture of the appearance, and the foam formed from a resilient urethane foam or the like improves the tactile sensation. . Examples of such foam-formed members with a skin include vehicle interior members (instrument panels, floor consoles, console lids, door panels, etc.) installed in passenger compartments such as passenger cars, and various furniture.

  13 is a schematic perspective view of an instrument panel as a vehicle interior member, and FIG. 14 is a cross-sectional view taken along line XX of FIG. The instrument panel 10 covers the synthetic resin base material 12 that has been injection-molded into a required shape, and covers the outer skin 14 and the foam 16 on the outer surface area of about a half facing the passenger seat side of the base material 12. It is a foam-molded member with a skin that is designed to be worn and partially has a three-layer structure. Therefore, a boundary portion 18 between the base material 12 and the skin 14 is formed on the rear side of the upper surface of the instrument panel 10 (on the windshield FW side), as illustrated in FIGS. 13 and 14.

As illustrated in FIG. 16, the instrument panel 10 as the foam-formed member with skin is formed by using the preformed base material 12 and the preformed skin 14 as a first molding die 42 and a second molding die 40. By foam-molding the foam 16 in the foaming space 20 defined between the base material 12 and the skin 14 when the foam-molding mold 40 is closed with the molds 44 set, A molding method for forming the three-layer structure is employed. For this reason, since it is necessary to seal the edge part (outer edge outline part) of the said skin 14 and the base material 12, while forming the skin seal part 24 integrally in the outer edge outline part of this skin 14, while the said base | substrate A base material seal portion 22 corresponding to the skin seal portion 24 is integrally formed at a required position of the material 12. As a result, when the foam molding die 40 is closed, the foam seal foam 24 foams in the foam space 20 so that the skin seal portion 24 abuts (adheres to) the base material seal portion 22. The body 16 is prevented from leaking (shown by a solid line in FIG. 16). Note that a sealing structure in which the skin seal portion 24 of the skin 14 is brought into contact with the base material seal portion 22 of the base material 12 at the time of molding the foam 16 is disclosed in, for example, Patent Document 1 or the like.
Japanese Patent Laid-Open No. 9-038999

By the way, in the conventional skin 14 mentioned above, it became difficult to form a sealing state appropriately and reliably for the following reasons. That is, the conventional skin 14 is preformed based on, for example, a vacuum molding technique, a powder slush molding technique, a spray molding technique, or the like, and its thickness is generally uniform and is approximately 1 mm thin. However, it has moderate elasticity (repulsiveness) in order to provide weather resistance, scratch resistance, etc., and does not necessarily have excellent flexibility. For this reason, for example, when the preformed skin 14 is removed from a skin molding die (not shown), if it is partially pulled due to peeling failure or the like, there is a disadvantage that shape deformation occurs in the skin 14 and the preliminary Even during storage after molding, shape deformation may occur in the skin 14 when the storage condition is poor or the temperature change is large.

  Accordingly, when the skin 14 is put into practice in a state in which shape deformation has occurred, the skin seal portion 24 and the base material are formed even when the foam molding die 40 is completely closed when the foam 16 is molded. In some cases, a gap of 0.5 to 1 mm or more may be formed (indicated by a two-dot chain line in FIG. 16). For this reason, after the molding of the foam 16 is completed, as illustrated in FIG. 17, a part of the foam 16 that has entered between the skin seal portion 24 and the base seal portion 22 is part of the base 12 and the skin. Since it leaks out from the boundary portion 18 to the outside and hardens, a subsequent work step for removing the foam 16 leaked to the outside is added, and the molding efficiency is lowered and the molding cost is increased. There was a problem. Furthermore, when separating and removing the leaked foam 16, if the base material 12 or the skin 14 is scratched due to an operation error or the like, a defective product is caused. .

The present invention has been proposed to suitably solve the aforementioned problems, the backside layer rich in flexibility on the rear surface of the front surface layer is provided, the outer edge of the back surface layer extending from the contour of the surface layer A method of manufacturing a skin that prevents a part of the foam from being exposed to the outside and prevents the subsequent work and prevents the occurrence of product defects by bringing the contour portion into close contact with the base material seal portion. The purpose is to provide.

To solve the above problems, the present invention for achieving the intended purpose, the foam molding origination foam between the skin and the substrate made of a flexible backing layer from the surface layer and the surface layer exposed to the outer surface It is a manufacturing method of the above-mentioned skin which constitutes a foam-formed member with a skin,
A masking seal that defines the contour of the surface layer is attached to the skin molding surface of the skin molding die,
After spraying and applying the first urethane material that forms the surface layer to the inside of the masking seal of the skin molding surface, the masking seal is removed,
A second urethane material is sprayed and applied to the entire back surface of the surface layer and the exposed portion of the skin molding surface after removing the masking seal, and an outer edge extending portion protruding outward from the contour portion of the surface layer is formed. The back surface layer provided is formed .

According to the method for producing a skin according to the present invention, a skin having a two-layer structure comprising a surface layer and a back surface layer provided with an outer edge extending portion extending outward from the contour portion of the surface layer is preferably produced. Can do.

Next, the manufacturing method of the skin according to the present invention will be described below with reference to the accompanying drawings by way of preferred examples. In addition, in an Example, the instrument panel of the 3 layer structure which consists of a base material, a foam, and a skin is illustrated as a foaming molding member with a skin. Accordingly, the same members / parts as those of the instrument panel 10 illustrated in FIGS. 13 to 17 will be described with the same reference numerals.

1 is a schematic cross-sectional view of an instrument panel as a foam-formed member with a skin, in which a skin 14 manufactured by the method for manufacturing a skin according to the first embodiment is implemented, and FIG. 2 is an enlarged cross-sectional view of the main part of FIG. is there. The instrument panel 10 has a three-layer structure composed of a base material 12 molded into a required shape, a skin 14 molded into a required shape, and a foam 16 interposed between the base material 12 and the skin 14. The basic configuration is the same as that of the conventional instrument panel 10 illustrated in FIGS. 13 and 14. For convenience of explanation, the right side (passenger seat side) in FIG. 1 is the “front side” of the instrument panel 10, and the left side (front glass FW side) in FIG. 1 is the “rear side” of the instrument panel 10.

  The base material 12 is a large synthetic resin molded member formed by injection molding using, for example, an injection molding die (not shown) from an olefin resin material such as polyethylene (PE) or polypropylene (PP). And the area | region from the upper surface in the outer surface of the said base material 12 to the front surface is made into the installation part 26 with which the said foam 16 and the outer skin 14 are attached, and is about 1/2 of the whole outer surface. The foam 16 and the skin 14 are partially disposed in the region. Therefore, the rear surface of the upper surface of the base material 12 facing the lower side of the windshield and the lower surface of the front surface facing the foot of the passenger seat are exposed to the outside and constitute the design surface of the instrument panel 10. ing. Further, the base material seal portion 22 is formed in the contour portion of the installation portion 26 along the contour portion. In the first embodiment, the shape and shape of the base material seal portion 22 are the same as the base material seal portion 22 formed on the conventional base material 12 illustrated in FIGS. 15 and 16.

The skin 14 is made of urethane molded based on a urethane spray molding technique as a method of manufacturing the skin, and is exposed on the outer surface of the instrument panel 10 to form a design surface as illustrated in FIG. A two-layer structure comprising a surface layer 30 having a required thickness and an outer edge contour size that is slightly larger than the outer edge contour size of the surface layer 30 and a back layer 32 having a required thickness superior to the surface layer 30 in flexibility. Yes. In other words, based on the conventional single-layer skin 14 illustrated in FIG. 15 as a surface layer, the back surface of the skin 14 has an outer edge contour size that is slightly larger than the outer edge contour size of the skin 14, and the It has a two-layer structure in which the back surface layer 32 that is more flexible than the skin 14 is provided with a required thickness.

  The surface layer 30 is formed by reacting and curing the first urethane material U1, as will be described later and illustrated in FIG. 4A. The thickness is about T1 = 0.5 mm, and the hardness is hardness Shore A. It has a moderate elasticity (rebound) and is excellent in weather resistance and scratch resistance required for the skin. The outer surface, which is the design surface, is reproduced with a texture pattern and is given a texture such as genuine leather, which contributes to improving the texture of the instrument panel 10. In addition, a skin seal portion 24 that extends obliquely downward so as to correspond to the base material seal portion 22 that extends to the base material 12 extends along the contour portion of the surface layer 30. Has been. The first urethane material U1 has a colored type and a non-colored type. When the non-colored type is used, the outer surface is coated.

  The back layer 32 is formed by reacting and curing the second urethane material U2, as will be described later and illustrated in FIG. 4B. The thickness T2 is 0.5 mm or less, and the hardness is hardness Shore A. It is about 70 to 75 and is more flexible than the surface layer 30. Since the outer edge contour size is slightly larger than that of the surface layer 30, the outer edge extension protruding outward from the skin seal portion 24 is formed on the contour portion of the skin seal portion 24 formed on the surface layer 30. A protruding portion 34 is formed. The outer edge extending portion 34 is formed so as to be inclined and extended in substantially the same direction as the extending direction of the skin seal portion 24, and protrudes from the back surface of the surface layer 30 and has a high flexibility. Therefore, even if a small external force is applied, it is elastically deformed independently. The second urethane material U2 also has a colored type and a non-colored type. However, since the back surface layer 32 is not exposed at all on the outer surface of the instrument panel 10, any type may be used.

  Therefore, when the skin 14 having the two-layer structure configured as described above is appropriately set on the installation portion 26 of the base material 12, the skin seal portion 24 and the outer edge extension portion 34 are connected to the base material. The seal portion 22 is set so as to be aligned, and a seal state is formed between the skin seal portion 24 and the base material seal portion 22, and at the same time, the outer edge extension portion 34 and the base material seal portion 22 A sealed state is formed even between the two. Moreover, as will be described later, even if the sealing state between the skin seal portion 24 and the base material seal portion 22 is not properly formed due to the shape deformation of the skin 14, the foaming pressure of the foam 16 is reduced. The received outer edge extending portion 34 is elastically deformed independently, so that the sealed state between the outer edge extending portion 34 and the base material seal portion 22 is easily and reliably formed.

FIG. 4 is a process explanatory view showing a method of manufacturing the skin for forming the skin 14 of the first embodiment using the skin molding die 50. Method of manufacturing this skin, as described above, Due to the fact that molded skin 14 based on the spray forming technique, the skin layer forming surface 52 of the skin mold 50 is first that prior to molding the epidermis 14 A masking seal 54 and a second masking seal 56 are attached. Under this, first, as illustrated in FIG. 4A, the first urethane material U1 is sprayed and applied to the entire surface of the skin molding surface 52 by the first spray gun 58, and the surface layer 30 having the thickness T1 is applied. Is molded. When the first urethane material U1 is appropriately cured, only the first masking seal 54 is removed, and then, as illustrated in FIG. 4B, the second urethane material U2 is moved to the surface by a second spray gun 60. The entire back surface of the layer 30 and the first masking seal 54 are removed and sprayed onto the exposed skin forming surface 52 to form the back surface layer 32 having a thickness T2. Thus, as illustrated in FIG. 4C, after the first urethane material U1 and the second urethane material U2 are appropriately cured, the formed skin 14 is peeled off from the skin molding surface 52, whereby the surface layer The formation of the skin 14 having a two-layer structure consisting of 30 and the back layer 32 that is slightly larger than the surface layer 30 is completed.

  The foam 16 is a urethane foam formed by foaming a foam material such as urethane, for example, and although it has a slight difference for each part, it has a thickness of about 5 to 10 mm. Have. Since such a foam 16 is interposed between the base material 12 and the skin 14, when the appropriate part of the skin 14 is pressed with a fingertip or the like, the pressing part is depressed and deformed. The tactile sensation of the instrument panel 10 can be improved. In the event of a collision, if an occupant is thrown forward and collides with the instrument panel 10, the impact is absorbed and the injury is reduced.

Next, a manufacturing method of the instrument panel 10 that implements the skin 14 manufactured by the manufacturing method of the skin according to the first embodiment as described above will be described with reference to FIGS. The base material 12 is preformed into the shape in which the installation portion 26 and the base material seal portion 22 are integrally provided based on an injection molding technique using a base material mold (not shown). Further, as described above, the skin 14 is integrally formed with the surface layer 30 integrally provided with the skin seal portion 24 and the outer edge extending portion 34 based on the urethane spray molding technique using the skin molding die 50. It is preformed into a two-layer structure comprising the provided back layer 32 (FIG. 4).

  Then, as illustrated in FIG. 5, the preformed skin 14 is set on the set surface 42A of the first mold (lower mold) 42 in the foam mold 40 in the mold open state, while the second mold (upper After the preformed base material 12 is set on the set surface 44A of the mold 44, the foam mold 40 is closed. Prior to closing the foam molding die 40, a predetermined amount of foam material is injected onto the back surface of the skin 14 so that the foam material starts a foaming reaction immediately after the mold is closed and foams in a timely manner. The space 20 is filled.

  Here, when shape deformation or the like does not occur in the surface layer 30, as illustrated in FIG. 5, a foaming space 20 is defined between the skin 14 and the base material 12, whereas the skin is Both the seal part 24 and the outer edge extension part 34 come into close contact with the base material seal part 22. Therefore, when the foaming pressure of the foam 16 is applied, the skin seal portion 24 and the outer edge extension portion 34 are each pressed against the base material seal portion 22, and the skin seal portion 24 and the outer edge extension portion are respectively pressed. The degree of adhesion between the portion 34 and the base material seal portion 22 is further increased to form a good seal state, and leakage of the foam 16 is suitably prevented.

  On the other hand, when the shape deformation of the surface layer 30 is manifested, or when the base material 12 and the skin seal portion 24 interfere with each other at the time of mold closing, the skin seal portion as illustrated in FIG. 24 and the outer edge extension part 34 and the base-material seal | sticker part 22 will come to form a some clearance gap. However, in this state, when the foam 16 that is expanding in the foaming space 20 arrives at the skin seal portion 24 and the outer edge extension portion 34, the outer edge extension portion 34 is more than the skin seal portion 24. 7 (a), the outer edge extending portion 34 to which foaming pressure is applied is bent with the end edge portion of the skin seal portion 24 as a hinge point, as shown in FIG. It comes to be pressed against the material seal part 22. That is, immediately before the foam 16 enters the gap between the skin seal portion 24 and the outer edge extension portion 34 and the base material seal portion 22, the outer edge extension portion 34 is pressed against the base material seal portion 22. Therefore, a good sealing state is formed between the outer edge extension portion 34 and the base material seal portion 22, and leakage of the foam 16 from the boundary portion 18 between the skin 14 and the base material 12 is suitably prevented. It becomes like this.

  Then, the molding of the foam 16 proceeds while the outer edge extension portion 34 and the base material seal portion 22 are in close contact with each other, and the foaming pressure of the foam 16 is applied to the skin seal portion 24. As illustrated in FIG. 7B, the skin seal portion 24 is also pressed against the base material seal portion 22. Therefore, when the molding of the foam 16 is completed, the foam 16 is cured in a state where the skin seal portion 24 and the base material seal portion 22 are in close contact with each other, and therefore, the boundary portion 18 between the skin 14 and the base material 12. The gap is hardly defined.

Thus, in the instrument panel 10 in which the skin 14 according to the first embodiment is implemented, the skin seal portion 24 and the base material seal are formed prior to the molding of the foam 16 due to the shape deformation of the skin 14 and the like. Even if a gap is defined with the portion 22, the outer edge extending portion 34 of the back surface layer 32 comes into close contact with the base material seal portion 22 due to the foaming pressure of the foam 16. It can prevent suitably that the foam 16 leaks from the clearance gap between the part 24 and the base-material seal | sticker part 22. FIG. Therefore, a post-operation process for removing the foam 16 leaking from the boundary portion 18 between the skin 14 and the base material 12 is completely unnecessary, so that a reduction in molding efficiency is prevented and a molding cost is increased. Does not occur. Moreover, since the operation | work which isolate | separates and removes the leaked foam 16 is unnecessary, the shaping | molding defect of the instrument panel 10 resulting from the operation | work mistake accompanying this removal operation, etc. is not caused. Furthermore, when the molding of the foam body 16 is completed, the foam body 16 is cured in a state where the skin seal portion 24 is pressed against and closely adhered to the base material seal portion 22. A gap is not defined in the boundary portion 18 and the texture of the instrument panel 10 can be improved suitably.

FIG. 8: is a principal part expanded sectional view of the instrument panel as a foam molding member with a skin which implemented the skin 14 which concerns on 2nd Example. In the second embodiment, by Moto derived principally from the first embodiment, the base sealing portion 22 provided on the substrate 12 have the same shape. Further, in the skin 14, as illustrated in FIG. 9, in the back surface layer 32 formed on the back side of the surface layer 30, the outer edge extending portion 34 extending outward from the contour portion of the skin sealing portion 24, The deformation allowing portion 36 is additionally formed along the edge of the skin seal portion 24, and the skin forming surface 52 of the skin forming die 50 illustrated in FIG. Formed simultaneously with molding. The deformation allowing portion 36 has a groove shape that extends along the edge of the skin seal portion 24 and has a cross-sectional shape of “U”. Therefore, when the foaming pressure of the foam 16 acts on the outer edge extending portion 34, the deformation allowing portion 36 becomes a so-called hinge point, and the outer edge extending portion 34 is easily deformed. ing.

Upon closing the good UNA type second mold 44 set with the first mold 42 and substrate 12 was set epidermis 14 according to the second embodiment, the shape deformation of the surface layer 30 is expressed In such a case, as illustrated by a two-dot chain line in FIG. 10A, a slight gap is formed between the skin seal portion 24 and the outer edge extension portion 34 and the base material seal portion 22. It will become like. However, in this state, when the foam 16 that is expanding in the foaming space 20 arrives at the skin seal portion 24 and the outer edge extension portion 34, the outer edge extension portion 34 is more than the skin seal portion 24. 10 is excellent in flexibility and the deformation allowing portion 36 is formed, the outer edge extending portion 34 to which foaming pressure is applied is applied to the deformation allowable portion as exemplified by a solid line in FIG. The portion 36 is bent with the hinge point and is pressed against the base material seal portion 22. That is, immediately before the foam 16 enters the gap between the skin seal portion 24 and the outer edge extension portion 34 and the base material seal portion 22, the outer edge extension portion 34 is pressed against the base material seal portion 22. Therefore, a good sealing state is formed between the outer edge extension portion 34 and the base material seal portion 22, and leakage of the foam 16 from the boundary portion 18 between the skin 14 and the base material 12 is suitably prevented. It becomes like this.

Then, the molding of the foam 16 proceeds while the outer edge extension portion 34 and the base material seal portion 22 are in close contact with each other, and the foaming pressure of the foam 16 is applied to the skin seal portion 24. As illustrated in FIG. 10B, the skin seal portion 24 is also pressed against the base material seal portion 22. Therefore, when the molding of the foam 16 is completed, the foam 16 is cured in a state where the skin seal portion 24 and the base material seal portion 22 are in close contact with each other, and therefore, the boundary portion 18 between the skin 14 and the base material 12. No gap is defined. Thereby, also in the instrument panel 10 which implemented the skin 14 which concerns on 2nd Example, the effect equivalent to the instrument panel 10 which implemented the skin 14 which concerns on the said 1st Example can be acquired.

(Change example)
Figure 11 is a fragmentary cross-sectional view of the engagement Ru Table skin 14 in the first modification. In the skin 14 according to the first modification, in the back surface layer 32 formed on the back side of the surface layer 30, the skin seal is provided on the outer edge extending portion 34 extending outward from the contour portion of the skin sealing portion 24. A groove-like deformation allowance portion 36 whose cross-sectional shape is a “U” shape is additionally formed along the edge of the portion 24, and the deformation seal portion 24 is provided on the edge of the skin seal portion 24. A support piece 38 formed in a bent state is additionally formed. Thus, when the foaming pressure of the foam 16 acts on the outer edge extension portion 34, the deformation allowing portion 36 supported by the support piece portion 38 becomes a so-called hinge point, and the outer edge extension portion 34 has a so-called hinge point. Easy and stable deformation is expressed.

Figure 12 is a fragmentary cross-sectional view of the engagement Ru skin 14 to a second modification. In the skin 14 according to the second modified example, in the back surface layer 32 formed on the back side of the surface layer 30, the skin seal is provided on the outer edge extending portion 34 extending outward from the contour portion of the skin sealing portion 24. A groove-shaped deformation allowance portion 36 having a cross-sectional shape of “V-shape” is additionally formed along the edge of the portion 24, and the deformation seal portion 24 is provided on the edge of the skin seal portion 24. A support piece 38 formed in a bent state is additionally formed. Thus, when the foaming pressure of the foam 16 acts on the outer edge extension portion 34, the deformation allowing portion 36 supported by the support piece portion 38 becomes a so-called hinge point, and the outer edge extension portion 34 has a so-called hinge point. Easy and stable deformation is expressed.

In addition, in each said Example, although the instrument panel 10 was illustrated as a foam molding member with a skin, the foam molding member with a skin by which the skin 14 manufactured by the manufacturing method of the skin of this application is implemented is limited to this Instead, various vehicle interior members such as a floor console, a console lid, and a door panel, and various other furniture are also targeted.

The manufacturing method of the skin of the present application is a foam-molded member with a skin having a three-layer structure comprising a base material and a skin, and a foam interposed between the base material and the skin. This is a method for producing a skin that prevents leakage of a foam that is subjected to foam molding. Therefore, as the foamed molded member with a skin having the three-layer structure, for example, various vehicle interior members such as an instrument panel, a floor console, a console lid and a door panel, and various skins such as a chair and a sofa are manufactured. Is possible.

It is a schematic sectional drawing of the instrument panel as a foam-formed member with a skin which implemented the skin which concerns on 1st Example manufactured with the manufacturing method of the skin of this application . It is a principal part expanded sectional view of the instrument panel which implemented the skin of 1st Example. It is principal part sectional drawing of the skin which showed the skin seal part of the surface layer, and the outer edge extension part of the back surface layer. It is process drawing which showed the state which has shape | molded the skin based on the urethane spray molding technique as a manufacturing method of skin, (a) shows the state which shape | molded the surface layer, (b) is this surface The state which has shape | molded the back surface layer on the back side of the layer is shown, (c) has shown the state which has removed the shape | molded skin. FIG. 2 is an explanatory cross-sectional view showing a foam molding die in which a skin and a base material are set in a closed state, and since the shape deformation is not expressed in the skin, the skin seal portion and the outer edge extension portion are in the base material seal portion. It shows that they are closely aligned. It is explanatory sectional drawing which showed the foaming mold which set the skin and the base material in the mold-closed state, and since shape deformation has developed in the skin, the skin seal part and the outer edge extension part, the base material seal part, A gap is defined between the two. FIG. 7 is an explanatory cross-sectional view showing a state where foam molding of the foam is performed in the state of FIG. 6, wherein (a) is a sealed state in which the outer edge extension portion is pressed against the base material seal portion by the foaming pressure of the foam (B) shows that the outer edge extension portion is in close contact with the base material seal portion to prevent leakage of the foam, and the skin seal portion is made of the base material seal by the foaming pressure of the foam. It is shown that it is pressed against the part. It is a principal part expanded sectional view of the instrument panel which implemented the skin of 2nd Example. It is principal part sectional drawing of the skin which showed the skin seal part of the surface layer, and the outer edge extension part of the back surface layer. It is explanatory sectional drawing which showed the state which implements the foam molding of a foam based on the skin of 2nd Example, (a) is a base-material seal | sticker with an outer edge extension part by the foaming pressure of a foam (B) shows that the outer edge extension portion is in close contact with the base material seal portion to prevent leakage of the foam, and the foaming pressure of the foam It shows that the skin seal part is pressed against the base material seal part. It is principal part sectional drawing of the skin which concerns on a 1st modification. It is principal part sectional drawing of the skin which concerns on a 2nd modification. It is a schematic perspective view of the instrument panel as a foaming molding member with a skin which implemented the conventional skin . It is XX sectional drawing of FIG. It is a partial expanded sectional view of FIG. FIG. 16 is an explanatory cross-sectional view showing a state in which a foam is foam-molded in a foam space defined between the base material and the skin, with the conventional skin illustrated in FIG. 15 being implemented; A gap is defined between the skin seal part and the base material seal part in accordance with the deformation of the skin, etc., indicating that inconvenience that a part of the foam leaks from the boundary part between the base material and the skin occurs. ing. It is a partial expanded sectional view of the instrument panel after shaping | molding, Comprising: Part of the foam which leaked from the boundary part of a base material and an outer_skin | epidermis is exposed to the exterior of an instrument panel.

Explanation of symbols

10 Instrument panel (foamed molding material with skin)
12 substrate 14 skin 16 foam 30 surface layer 32 backing layer 34 outer extending portion
50 Skin mold
52 Surface molding surface
54 1st masking seal (masking seal)
U1 1st urethane material
U2 Second urethane material

Claims (1)

Foam molding origination foam (16) between the surface layer exposed on the outer surface (30) and the surface layer (30) than the flexible backing layer epidermis consisting of (32) (14) substrate (12) A method for producing the skin (14) constituting the foamed molded member (10) with a skin,
A masking seal (54) that defines the contour of the surface layer (30) is attached to the skin molding surface (52) of the skin molding die (50),
After the first urethane material (U1) forming the surface layer (30) is sprayed onto the inner surface of the skin molding surface (52) from the masking seal (54), the masking seal (54) is removed. ,
A second urethane material (U2) is sprayed onto the entire back surface of the surface layer (30) and the exposed surface of the skin molding surface (52) after removing the masking seal (54), and the surface layer ( Forming the back surface layer (32) having an outer edge extending part (34) protruding outward from the contour part of (30).
A method for producing an epidermis.

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