JP2002059445A - Composite molded body and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite molded body, in which both the base material of a thermoplastic resin and a fibrous base material are joined in the edges and the joining strength of a product is excellent and also an outward appearance is good, and to efficiently produce such a product as this at a low cost. SOLUTION: A fibrous sheet member having the self-supporting properties of a shape at the ordinary temperature is supplied to a part of a cavity face between a pair of male and female molds. A molten thermoplastic resin is supplied from an unexisting part of the fibrous sheet member. The base material of the thermoplastic resin and the fibrous sheet member are integrally joined so that at least a part of the edge of the fibrous base material is wrapped by the thermoplastic resin in the joint part of both the base material of the thermoplastic resin and the fibrous base material. The composite molded body is produced by joining the base material of the thermoplastic resin to the fibrous base material in the mutual ends.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite molded article in which a substrate made of a thermoplastic resin and a fibrous substrate having a self-supporting shape are joined together at their edges, and a method for producing the same.

[0002]

2. Description of the Related Art Molded articles made of thermoplastic resin are used in automobile interior parts, because of their economical efficiency, light weight and good shapeability.
It is widely used in interior and exterior parts of home appliances and other wide fields. Also, molded articles made of a fibrous base material having self-supporting shape are widely used mainly for automobile interior parts mainly because of their economical efficiency, light weight and good shapeability.

A composite molded article as shown in FIG. 1 in which a molded article composed of a thermoplastic resin base and a molded article composed of a fibrous base material are combined and joined at the edges thereof has conventionally been produced.
A molded article made of the thermoplastic resin base material (6) by injection molding or press molding and a molded article made of the fibrous base material (7) by hot press molding or the like are manufactured in advance.
The edges of these molded articles have been assembled together and joined by means such as heat staking. (Fig. 2, part E)

However, a composite molded article in which a molded article made of such a thermoplastic resin base material and a molded article made of a fibrous base material are separately manufactured and assembled and joined in a later step,
In addition to the complicated process, there is a problem that a positional shift occurs at the time of joining the substrates, and heat is also applied to the surface of the substrate at the time of heat staking, resulting in poor appearance of the molded product surface.

[0005]

SUMMARY OF THE INVENTION
The present inventors have proposed a composite molded article comprising a thermoplastic resin substrate and a fibrous substrate having shape self-supporting properties, wherein the composite molded article has no problem in the bonding strength between the substrates, and such a composite molded article As a result of studying how to manufacture products at low cost,
The present invention has been reached.

[0006]

That is, according to the present invention, a thermoplastic resin base material and a fiber base material having a shape self-supporting property at ordinary temperature (hereinafter, simply referred to as a fiber base material) are joined at their edges. A composite molded article, wherein at a joining portion between the thermoplastic resin base material and the fibrous base material, at least a part of an edge of the fibrous base material is integrally joined so as to be wrapped with the thermoplastic resin. The present invention also provides a composite molded article characterized by comprising: supplying a fibrous sheet member having shape self-supporting to a part of a cavity surface between a pair of male and female molds; An object of the present invention is to provide a method for producing the above-mentioned composite molded body, in which a molten thermoplastic resin is supplied from a portion not to be mixed, and a fibrous sheet member and a thermoplastic resin base material are integrated at edges.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. This description is an example of the present invention, and the present invention is not limited to this.

The composite molded article of the present invention comprises a thermoplastic resin base material (6) and a fibrous base material (7) in the same manner as conventionally known composite molded articles. The plan view of the body (1) as viewed from the front side as shown in FIG. 1 is the same as that of the conventional composite molded body, but the composite molded article of the present invention was cut along AA in FIG. As shown in FIG. 3, a cross section at the time is a thermoplastic resin base material (6).
In the joint (F part) between the fiber base material (7) and the fiber base material (7), the edge of the fiber base material (7) is wrapped with the thermoplastic resin constituting the thermoplastic resin base material (6). It has a structure that is integrally joined.

This joint must be joined and integrated at the contact surface between the edges of the fibrous base material (7) and the thermoplastic resin base material (6). May be heat fusion or a form in which the thermoplastic resin base material (6) is impregnated and joined to the fibrous base material (7). Further, the joining surface may be all or a part of the joining portion of the thermoplastic resin base material (6) and the fibrous base material (7), and may be a part having no problem in the joining strength. There is no particular limitation as long as the thermoplastic resin substrate (6) and the fibrous substrate (7) are joined together.

In any case, the thermoplastic resin constituting the thermoplastic resin base material goes around the back surface of the edge of the fibrous base material at the joint portion, and the end of the fibrous base material becomes the thermoplastic resin. It is necessary that they are integrally joined so that they can be wrapped in.

A skin material may be laminated on part or all of the surface of the thermoplastic resin base material portion of the composite molded article of the present invention. For example, FIG. As shown in FIG. 4 (b), a cross section taken along line CC in FIG. 4 (a) shows a surface material (8) over the entire surface of the thermoplastic resin substrate (6). Layered form,
The skin material (8) may be laminated on a part of the surface of the thermoplastic resin base material (6) as shown in FIGS.

[0012] The fiber-based substrate also has a cross-section at the joint between the thermoplastic resin substrate and the fiber-based substrate.
A skin material (8 ') is laminated on the surface of the fibrous base material (7) as shown in FIG. 6A, or reinforced on the back surface of the fibrous base material (7) as shown in FIG. 6B. Backing materials such as sheets (9)
And the like may be laminated.

Further, on the back surface of the fibrous base material, ribs for improving the product strength, and projections such as bosses for assembling with other parts may be provided integrally. These ribs and bosses may be, for example, a form in which a thermoplastic resin base (6) portion and a rib (10) are continuous as shown in FIG. 7A, or as shown in FIG. 7B. The form in which the thermoplastic resin base material (6) and the rib (10) are separated may be used, and the arrangement and the shape of the rib (10) are not particularly limited as shown in FIG. The number of pods is also appropriately determined according to the purpose of use.

Of course, such ribs and bosses are not limited to the fiber base material, and may be provided on the thermoplastic resin base material, or may be provided on the fiber base material and the thermoplastic resin base material. It may be provided in both.

The composite molded article of the present invention has a structure in which the thermoplastic resin base (6) and the fibrous base (7) are joined in abutting state as described in the above example, and FIG.
As shown in FIG. 8A, the thermoplastic resin base material (6) may be sandwiched between the fibrous base materials (7).
As shown in (b), the entire periphery of the fibrous base material (7) may be surrounded by the thermoplastic resin base material (6), and the thermoplastic resin base material (6) and the fibrous base material may be used. The arrangement of (7) is not particularly limited, and may be a combination of a plurality of thermoplastic resin base materials or a plurality of fibrous base materials.
However, in any case, for example, in the case shown in FIG. 8B, the fiber base material is formed at the joint between the entire outer peripheral edge of the fiber base material and the inner peripheral end of the thermoplastic resin base material. Are required to be integrally joined so that the edges are surrounded by a thermoplastic resin.

As the thermoplastic resin constituting the thermoplastic resin substrate applied to the composite molded article of the present invention, a resin generally used in compression molding, injection molding, extrusion molding, etc. is applied. ,polyethylene,
General thermoplastic resins such as acrylonitrile-styrene-butadiene block copolymer, polyamide such as polystyrene and nylon, polyvinyl chloride, polycarbonate, acrylic resin, styrene-butadiene block copolymer, and thermoplastic elastomers such as EPM and EPDM , A mixture thereof, or a polymer alloy using the same, and the like, which may be non-foamable or foamable. In addition, these thermoplastic resins may contain fillers such as commonly used glass fibers and various inorganic or organic fillers, if necessary.Of course, various pigments and lubricants that are commonly used, Various additives such as an antistatic agent and a stabilizer may be appropriately blended.

As the skin material used as necessary,
Examples include fabrics and knits such as moquettes and tricots, nonwoven fabrics such as needle punch carpets, and sheets or films of metal foils, thermoplastic resins and thermoplastic elastomers. These skin materials may be a laminated skin material having two or three or more layers in which a foamed layer and a backing layer are appropriately laminated as necessary, but the thermoplastic resin and the thermoplastic resin constituting the thermoplastic resin base material may be used. It must be a material that can be fused or a material that can be integrally bonded to the thermoplastic resin base material by impregnating the back surface of the skin material with a thermoplastic resin in a molten state.

The foam layer used for this purpose includes:
Examples include foams of polyolefin such as polypropylene and polyethylene, polyvinyl chloride foam, and soft or semi-rigid polyurethane foam.

As the backing layer, a nonwoven fabric, a synthetic resin sheet, a film or the like is used. Here, the fibers constituting the nonwoven fabric include natural fibers such as cotton, wool, silk, and hemp, and synthetic fibers such as polyamide, polyester, and nylon, and these are used alone or as a blend to obtain a nonwoven fabric by various methods. Things are used. For example, non-woven fabrics such as a needle punch type, a thermal bond type, a spun bond type, a melt blow type, a spun lace type and the like can be mentioned.
Sheets and films made of synthetic resin include thermoplastic resins such as polypropylene and polyethylene, and sheets and films of polyolefin-based thermoplastic elastomers, which are fusible with the thermoplastic resin constituting the thermoplastic resin base material. Is used.

The fibrous base material applicable to the present invention is a material composed of fibers such as resin felt, wood felt such as hemp, wood, and cotton. Heat-fusible with resin,
Alternatively, it is necessary that the thermoplastic resin impregnates between the fibers and can be bonded to the thermoplastic resin. Especially those mainly composed of thermoplastic resin fibers such as polypropylene,
Alternatively, thermoplastic resin fibers blended with natural fibers such as hemp are excellent in shape retention and are preferably used. Also,
The fibrous base material may have a skin material such as a nonwoven fabric laminated on the surface as described above, or a sheet of a thermoplastic resin or thermoplastic elastomer for reinforcement may be laminated on the back surface. Good.

Next, a typical method for producing the composite molded article of the present invention will be described. FIG. 9 is a schematic sectional view of an example of a mold used for producing the composite molded article of the present invention. In this mold, the outer periphery of the male mold (11) and the inner periphery of the female mold (12) slide. The male type is formed of a pair of male and female members that slide on each other as surfaces, and the male die has a holding body (13) for holding the end of the fibrous base material and a fitting groove (14) for fitting the holding body (13). ), And a molten resin supply port (16) is opened via the molten resin supply passage (15). This molten resin supply port may be located at a position corresponding to the thermoplastic resin base material forming portion,
The number and arrangement may be determined according to the product shape and size.

FIG. 10 shows an example in which the edge of the fibrous sheet member (17) is held between the holding members (13).
FIG. 10A schematically shows the state at that time in a plan view. (Note that, in this figure, the edge of the sandwiched fibrous sheet member is shown as a cross section cut on the upper surface of the sandwiching body.) The sandwiching of the fibrous sheet member (17) is performed so as not to cause displacement during molding. What is necessary is just to be fixed, and this example shows a state in which the portion sandwiching the edge of the fibrous sheet member and the portion not sandwiching are alternately arranged.

That is, as shown in FIG. 10 (b), the GG portion of FIG. 10 (a) is such that the edges of the fibrous sheet member are firmly held by the splittable holding body (13). However, the portion HH in FIG.
As shown in (c), the edge of the fibrous sheet member is not directly held by the holding body (13).

In the portion where the edge of the fibrous sheet member (17) shown in FIG. 10 (c) is not sandwiched, a molten thermoplastic resin is formed in a gap around the edge of the fibrous sheet member (17) during molding. The edge of the fibrous sheet member (17) corresponds to the portion wrapped by the thermoplastic resin base material (6) when the resin enters and becomes a composite molded product after molding. Although the bonding strength between the thermoplastic resin base material (6) and the fibrous sheet member (17) increases, the thermoplastic resin may enter the surface of the fibrous sheet member (17) or the positioning property may deteriorate. There is a problem.

For this reason, it is preferable that the portion where the edge of the fibrous sheet member is firmly held by the holding body and the portion which is not directly held are alternately and finely arranged.

The fibrous sheet member (17) sandwiched by the sandwiching body (13) may be sandwiched between the sandwiching body (13) as it is, or may be sandwiched in a state of being heated and softened in advance. In addition, although it is possible to sandwich a product formed in advance into a product shape, when a thermoplastic fiber sheet member is used, it is preferable to sandwich it in a heated and softened state in advance.

FIG. 11 shows a state in which the holding body (13) holding the fiber sheet member is fitted into the fitting groove (14) provided in the male mold (11). At this time, a clamp frame (not shown) or the like may be provided on the outer periphery of the male mold (11) to fix the outer periphery of the fibrous sheet member.

FIG. 12 shows a molten resin supply passage (15) from a molten resin supply port (16) provided in the male mold at a portion where the fibrous sheet member (17) set between the molds does not exist.
Shows that the molten thermoplastic resin (18) was supplied via the. The cavity clearance of the male and female molds when supplying the molten thermoplastic resin (18) is appropriately determined according to the appearance quality required for the product.

FIG. 13 shows a state where the mold clamping is completed after the required amount of thermoplastic resin is supplied.
3 (a) shows a state where the fiber sheet member (17) is sandwiched, and FIG. 13 (b) shows a state where the fiber sheet member (17) is not clamped. The thermoplastic resin substrate is formed so as to wrap around the edge of the fiber sheet member in a portion where the fiber sheet member (17) is not sandwiched, and the thermoplastic resin substrate and the fiber sheet member are firmly joined. Is done.

The timing of the mold clamping may be either during the supply of the molten thermoplastic resin (18) or after the supply is completed. When the mold clamping is performed after the supply of the molten thermoplastic resin is completed, the mold clamping is preferably started immediately after the supply of the molten thermoplastic resin is completed. Also,
In the figures, the mold clamping of the male and female molds is illustrated in the vertical direction, but the clamping direction may be the vertical direction or the horizontal direction.

Thereafter, cooling and solidification are performed, and the male and female molds are opened to take out a composite molded article in which the fibrous base material is firmly joined to the thermoplastic resin base material.

FIG. 14 shows a state where the fiber-based sheet member and the molten thermoplastic resin are supplied into the mold when the composite molded article is manufactured using another mold, and the mold clamping is completed. The mold used at this time is provided with a concave portion (19) for forming a rib or a boss in a part of the male mold covered with the fiber-based sheet member, and the molten resin supply passage is connected to this concave portion. The structure is such that a molten thermoplastic resin can be supplied. An opening / closing valve (not shown) is provided at the molten resin supply port, and a molten resin supply port (16) for supplying a molten thermoplastic resin to a portion to be a thermoplastic resin base portion and a molten resin supply port at a rib or boss portion. It is preferable that the molten resin supply ports (20) for supplying the thermoplastic resin can independently adjust the supply timing and supply time of the molten resin. FIG.
Reference numeral 4 denotes a state in which the supply of the molten thermoplastic resin has been completed to the portion to be the thermoplastic resin base portion, but the molten thermoplastic resin has not yet been supplied to the concave portion (19). ing. .

FIG. 15 shows a state where the molten thermoplastic resin is supplied from the molten resin supply port (20) through the molten resin supply passage to the concave portion (19) for forming ribs and bosses provided in the male mold from the state of FIG. The ribs (10) are formed integrally with the fibrous sheet member in a form in which the ribs (10) are heat-sealed or impregnated with the thermoplastic resin on the back surface of the fibrous sheet member (17). Is shown. The timing of supplying the molten thermoplastic resin for forming the ribs and the bosses is preferably performed after the closing of the male and female molds is completed.

Next, a method for producing a composite molded article in which a skin material is bonded and integrated on the surface of a thermoplastic resin substrate will be described. FIG. 16A is a plan view schematically showing an example in which the skin material (8) and the edge of the fibrous sheet member (17) are overlapped and held by the holding body (13). The sandwiching between the skin material (8) and the fibrous sheet member (17) may be fixed so as not to cause displacement during molding. In this example, the ends of the skin material (8) and the fibrous sheet member (17) are used. It shows a state in which the portion where the edges are overlapped and held and the portion where the edges are not held are alternated.

That is, as shown in FIG. 16 (b), the portion II of FIG. 16 (a) is formed by holding the edges of the skin material (8) and the fibrous sheet member (17) together with the holding member (13). ) Is firmly held, but JJ in FIG.
As shown in FIG. 16 (c), the portion of
The edge of the fiber sheet member (17) is sandwiched between the holding members (1).
In 3), it is not directly pinched.

The portion where the edges of the skin material (8) and the fibrous sheet member (17) shown in FIG. 16 (c) are not sandwiched between the outer edge of the fibrous sheet member (17) during molding. The molten thermoplastic resin enters the gaps, and the edge of the fibrous sheet member (17) corresponds to the portion that is wrapped by the thermoplastic resin base material (6) when a composite molded article after molding is formed. Increasing the number of parts increases the bonding strength between the thermoplastic resin base (6) and the fibrous sheet member (17),
There is a problem that the thermoplastic resin enters the surface of the fibrous sheet member (17) and the positioning property is deteriorated. For this reason, a portion where the edges of the skin material and the fibrous sheet member are firmly held by the holding body,
It is preferable that portions not directly held are alternately and finely arranged.

At this time, the fibrous sheet member (17) held by the holding body (13) is held as it is.
3), may be sandwiched in a state of being heated and softened in advance, or may be sandwiched in a state of being shaped into a product in advance. When a sheet member is used, it is preferable to hold the sheet member in a softened state in advance. Also, the skin material (8) may be sandwiched as it is, may be sandwiched in a pre-heated state, or may be sandwiched in a state of being shaped into a product in advance. .

FIG. 17 shows a holding body (13) in which the skin material (8) and the edge of the fibrous sheet member (17) are overlapped and held.
Shows a state in which is fitted into the fitting groove (14) provided in the male mold (11). At this time, a clamp frame (not shown) may be provided on the outer periphery of the male mold (11) to fix the outer periphery of the skin material and / or the fibrous sheet member.

FIG. 18 shows a state where the molten thermoplastic resin is supplied from the molten resin supply port (16) between the skin material set between the molds and the male mold through the molten resin supply passage in the male mold. Is shown. The number and arrangement of the molten resin supply ports (16) are appropriately determined depending on the shape and size of the product. However, when the skin material is bonded and integrated only to a part of the surface of the thermoplastic resin base material, at least It is necessary to arrange it in the place where the skin material exists. The cavity clearance of the male and female molds when supplying the molten thermoplastic resin (18) is appropriately determined depending on the type of the skin material used.

FIG. 19 shows a state in which the mold clamping has been completed. FIG. 19 (a) shows a portion of the portion sandwiching the edges of the skin material (8) and the fibrous sheet member (17). b) shows the state where the mold is clamped at a portion where the edges of the skin material (8) and the fibrous sheet member (17) are not sandwiched, respectively, and the skin material (8) and the fibrous sheet member (17). The thermoplastic resin base material is formed so as to wrap around the edges of the skin material (8) and the fibrous sheet member (17) in a portion not sandwiching the edge of the thermoplastic resin base material and the fibrous sheet member. Are firmly joined.

The timing of the mold clamping may be either during the supply of the molten thermoplastic resin (18) or after the supply is completed. When the mold clamping is performed after the supply of the molten thermoplastic resin (18) is completed, the mold clamping is preferably started immediately after the completion of the supply of the molten thermoplastic resin. After that, it is cooled and solidified, and the male and female molds are opened, so that the skin material is bonded and integrated on the surface of the thermoplastic resin base material, and the fibrous base material is firmly joined. The body is removed.

As a molding method applied to the multilayer molded article of the present invention, when a skin material is bonded and integrated, compression molding which can reduce damage to the skin material can be preferably applied, as shown in FIG. After the fibrous base material is set in the mold as described above, the male and female molds are closed as shown in FIG.
Thereafter, a method in which a molten thermoplastic resin is supplied and shaped may be used.

[0043]

The composite molded article of the present invention comprises a thermoplastic resin substrate and a fibrous base material integrally joined at the end, but the thermoplastic resin base material and the fibrous base material are firmly bonded. Since it is joined, it has excellent strength as a molded product and good appearance, so that it can be widely used for various applications including automobile interior parts. Further, according to the method of the present invention, even when the thermoplastic resin base and the fibrous base are integrally joined, a composite molded body having no problem in product strength and having no positional displacement can be efficiently produced. Can be manufactured well at low cost.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a composite molded body.

FIG. 2 is a cross-sectional view showing a state of a joint between a thermoplastic resin substrate and a fibrous substrate of a composite molded product according to a conventional technique.

FIG. 3 is a cross-sectional view showing a state of a joint between a thermoplastic resin substrate and a fibrous substrate of the composite molded article of the present invention.

FIGS. 4A and 4B show an example of the composite molded article of the present invention, wherein FIG. 4A is a plan view and FIG. 4B is a cross-sectional view taken along line CC in FIG.

FIGS. 5A and 5B show an example of the composite molded article of the present invention, wherein FIG. 5A is a plan view and FIG. 5B is a cross-sectional view taken along line DD in FIG.

FIG. 6 is a cross-sectional view showing a state of a joint between a thermoplastic resin substrate and a fibrous substrate of the composite molded article of the present invention.

FIG. 7 is a cross-sectional view showing a state of a joint between a thermoplastic resin substrate and a fibrous substrate of the composite molded article of the present invention.

FIG. 8 is a plan view showing an example of the composite molded article of the present invention.

FIG. 9 is a schematic sectional view showing an example of a mold used in the method of the present invention.

FIGS. 10A and 10B are schematic views showing a holding body holding an edge of a fiber-based sheet member, wherein FIG. 10A is a view of the holding body viewed from above, and FIG. (C) shows a cross-sectional state when cut along HH.

FIG. 11 is a cross-sectional view of a mold showing a manufacturing process of a composite molded article according to the method of the present invention.

FIG. 12 is a cross-sectional view of a mold for illustrating a process of manufacturing a composite molded article according to the method of the present invention.

FIGS. 13A and 13B are cross-sectional views of a manufacturing process of a composite molded article according to the method of the present invention, wherein FIG. 13A is a cross section of a fiber sheet member, and FIG. The part which does not hold a member is shown.

FIG. 14 is a cross-sectional view of a mold for illustrating a process of manufacturing a composite molded article according to the method of the present invention.

FIG. 15 is a cross-sectional view of a mold for illustrating a process of manufacturing a composite molded article according to the method of the present invention.

16A and 16B are schematic views showing a sandwiching body which sandwiches an edge of a skin material and a fiber-based sheet member, wherein FIG. 16A is a view of the holding body viewed from above, and FIG. The cross-sectional state when cut by I is shown, and (c) shows the cross-sectional state when cut by JJ.

FIG. 17 is a cross-sectional view of a mold showing the steps of manufacturing a composite molded article according to the method of the present invention.

FIG. 18 is a sectional view of a mold for illustrating a process of manufacturing a composite molded article according to the method of the present invention.

FIG. 19 is a cross-sectional view of a manufacturing process of a composite molded article according to the method of the present invention, in which (a) shows a portion sandwiching a skin material and a fiber-based sheet member, and (b) shows a skin material. And a portion where the fiber sheet member is not sandwiched.

FIG. 20 is a cross-sectional view of a mold for illustrating a process of manufacturing a composite molded article according to the method of the present invention.

[Explanation of symbols]

 1: Composite molded body 2: Composite molded body 3: Composite molded body 4: Composite molded body 5: Composite molded body 6: Thermoplastic resin base material 7: Fiber base material 8, 8 ': Skin material 9: Backing material 10 : Rib or boss 11: Male type 12: Female type 13: Holding body 14: Fitting groove 15: Molten resin supply passage 16: Molten resin supply port 17: Fiber-based sheet member 18: Molten thermoplastic resin 19: Concave 20: Molten resin supply port

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B29L 31:58 B29L 31:58 (72) Inventor Nobuhiro Usui 2-10-1 Tsukahara, Takatsuki-shi, Osaka Sumitomo Within Chemical Industry Co., Ltd. (72) Inventor Tetsuo Takasaki 2-10-4, Amisumi Hakusan-cho, Kasugai-shi, Aichi Prefecture Inside Toyo Textile Industry Co., Ltd. F-term (reference) in Howa Textile Co., Ltd. 3D023 BA01 BE06 BE31 4F204 AD16 AD24 AG21 AG28 AH26 FA01 FB01 FB12 FB15 FF01 FF05 FF23 FF49 FF50 FG02 FG05 FH06 FJ29 FJ30 FN11 FQ01 FQ15

Claims (10)

[Claims] 1. A composite molded article comprising a thermoplastic resin substrate and a fibrous substrate having shape self-supporting properties at room temperature joined at edges, wherein the thermoplastic resin substrate and the fibrous substrate are The composite molded article, characterized in that at least a part of the edge of the fibrous base material is integrally joined so as to be wrapped with the thermoplastic resin at the joining portion. 2. The composite molded article according to claim 1, wherein a skin material is bonded and integrated to at least a part of the surface of the thermoplastic resin substrate. 3. The composite molded article according to claim 1, wherein a rib or a boss made of a thermoplastic resin is provided on the back side of the fibrous base material. 4. A fiber-based sheet member having a self-supporting shape is supplied to a part of a cavity surface between a pair of male and female molds, and a molten thermoplastic resin is supplied from a portion where the sheet member does not exist. The method for producing a composite molded article according to claim 1, wherein the system sheet member and the thermoplastic resin base material are integrated with each other at the edges. 5. A skin material and a fibrous sheet member having shape autonomy are separately supplied between a pair of male and female molds, and a molten thermoplastic resin is supplied between the skin material and one of the molds. The method for producing a composite molded article according to claim 4, wherein a skin material is bonded and integrated to at least a part of the surface of the thermoplastic resin base material. 6. The method for producing a composite molded article according to claim 4, wherein a molten thermoplastic resin is supplied between unclosed molds and the mold is clamped. 7. An end portion of a fibrous sheet member having a self-supporting shape is clamped by a clamping body, and the clamping body is fitted into a fitting groove provided in a mold to convert the fibrous sheet member into a mold. The method for producing a composite molded article according to claim 4, wherein the composite molded article is fixed. 8. The skin material and the fibrous sheet member are overlapped with the edges of the skin material and the fibrous sheet member and held by a holding body, and the holding body is fitted into a fitting groove provided in a mold. 7. The method for producing a composite molded article according to claim 5, wherein is fixed to a mold. 9. A mold in which a concave portion is provided in a mold corresponding to the back side of a fibrous resin sheet member having a shape self-supporting property, a molten thermoplastic resin is supplied to the concave portion, and molding is performed in the concave portion. The method for producing a composite molded article according to claim 4, wherein the protruding portion to be formed and the fibrous resin sheet member are integrated by fusion. 10. The method according to claim 4, wherein a fibrous sheet member in a softened state is supplied by heating between a pair of male and female molds.