JP2004106590A - Interior component for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce weight and cost, to increase rigidity near a clip mounting seat, and to smooth mounting work of an interior component, in the interior component for an automobile to be mounted to a car body panel. <P>SOLUTION: In a door trim 10, a resin-made frame material 30 is integrally stacked on the back surface of a foaming light resin base material 20 with shape retention, and the clip mounting seat 50 is integrated with the resin-made frame material 30. The weight and cost is reduced by using the light foaming resin base material 20 and reducing projection area of the resin-made frame material 30 comparing with a conventional resin core material. The clip mounting seat 50 is integrated with the back surface of a highly rigid base plate 51 disposed on the resin-made frame material 30, thereby increasing rigidity of the clip mounting seat 50 and smoothing the mounting work and removing work of the door trim 10. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to interior parts for automobiles such as door trims, rear side trims, and luggage trims. In particular, the present invention can reduce the weight, reduce the manufacturing cost, and enhance the rigidity near the clip mounting portion. The present invention relates to an interior part for an automobile that can be mounted smoothly.
[0002]
[Prior art]
For example, a door trim mounted on a side wall panel of a vehicle will be described as an example of an interior part for a vehicle with reference to FIGS.
[0003]
The door trim 1 is configured by laminating and integrating a skin 3 having excellent surface appearance, touch feeling and the like on the surface of a resin core material 2 having shape retention and rigidity for mounting to a vehicle body panel.
[0004]
The resin core material 2 is made of a polypropylene-based resin mixed with a filler such as talc, while the skin 3 is made of a synthetic resin sheet such as a PVC sheet. In addition, elastomer sheets such as TPO (thermoplastic olefin) sheets tend to be frequently used. For reference, the molding method of the door trim 1 will be briefly described. When the molding upper and lower dies having the molding surfaces matching the product shape are in the mold opening state, the raw sheet of the skin 3 is set, and after the mold clamping. By injecting and filling a molten resin as a material of the resin core material 2 into the cavity, the resin core material 2 is formed into a desired curved surface shape, and the skin 3 is integrally formed on the surface of the resin core material 2. A molding method which is rich in mass productivity is mainly used (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP-A-10-138268 (page 2, FIG. 3, FIG. 4)
[0006]
[Problems to be solved by the invention]
However, in the conventional door trim 1, it has been pointed out that the projected area of the resin core material 2 is large, so that the material cost is high and the product is heavy.
[0007]
In addition, since the projected area of the resin core material 2 is large, the injection pressure at the time of molding must be set high, and a mold structure that can withstand the high injection pressure is required. In addition, it has been pointed out that a large amount of molten resin is cooled and solidified, thereby prolonging the molding cycle.
[0008]
Furthermore, since the skin 3 is based on a non-breathable synthetic resin sheet, it has also been pointed out that the sound absorbing performance is inferior and the sound absorbing property against vehicle interior noise cannot be expected.
[0009]
The present invention has been made in view of such circumstances, and can promote weight reduction, reduce costs, increase the rigidity of a clip mounting portion, and smoothly mount an interior part to a vehicle body panel. It is an object of the present invention to provide interior parts for automobiles that can be used in automobiles.
[0010]
[Means for Solving the Problems]
The present inventors, in order to solve the above problems, as a result of earnest research, by imparting shape retention to a foamed resin sheet that has been conventionally used as a skin material, to impart a function as a core material, The present invention has been completed by appropriately arranging a resin aggregate at a place where rigidity is required, and integrating the clip mounting seat with the resin aggregate.
[0011]
That is, the automotive interior part according to the present invention comprises a foamed resin base material having a lightweight and shape-retaining property, and a resinous aggregate laminated and integrated on the back surface of the foamed resinous base material. The material is an automobile interior part that is composed of an outer peripheral frame and resin ribs extending in the vertical and horizontal directions provided in the outer peripheral frame, and that is mounted on a vehicle body panel via a clip, wherein the clip is mounted. The clip mounting seat is set at a connecting portion between the outer peripheral frame and the resin rib in the resin aggregate, and is longer than the width dimension of the outer peripheral frame, and is extended from the rear surface of the base plate toward the center side. It is characterized in that it is integrally molded.
[0012]
Here, as interior parts for automobiles, the present invention can be applied to all interior parts mounted on vehicle body panels via clips, such as door trims, rear parcel shelves, floor trims, luggage trims, trunk trims, and rear side trims.
[0013]
When the foamed resin base material having shape retention properties is close to a flat shape, the heating softening step is omitted, and the molded resin is molded into a desired shape. Is heat-softened, then molded into a desired curved surface shape in a molding die, and the shape is maintained. Also, when the product shape includes a high expansion rate, after heating and softening the foamed resin sheet, a vacuum suction mechanism is arranged in the molding die, and vacuum suction is performed along the inner surface of the molding die with a vacuum suction force. A force may be applied.
[0014]
As the foamed resin sheet, a material obtained by adding a foaming agent to a thermoplastic resin is used. Incidentally, the thermoplastic resin may be composed of one kind of thermoplastic resin or two or more kinds of thermoplastic resins. Preferably, polyethylene resin, polypropylene resin, polystyrene resin, polyethylene terephthalate resin, polyvinyl alcohol resin, vinyl chloride resin, ionomer resin, acrylonitrile / butadiene / styrene (ABS) resin and the like can be used.
[0015]
As the foaming agent, an organic foaming agent such as an azo compound, a sulfohydrazide compound, a nitroso compound, and an azide compound, or an inorganic foaming agent such as sodium bicarbonate can be used.
[0016]
The foamed resin substrate obtained by molding the foamed resin sheet into a required shape after the heat softening treatment has a foaming ratio of 2 to 10 times in consideration of the balance between the weight and the strength of the product. The cell diameter of the foamed resin substrate at that time is preferably in the range of 0.1 μm to 2 mm, and the thickness is preferably 0.5 to 30 mm, and more preferably 1 to 10 mm.
[0017]
On the other hand, the resinous aggregate is composed of an outer peripheral frame along the outer peripheral edge of the product, and resin ribs arranged in the outer peripheral frame and extending in the vertical and horizontal directions. The thermoplastic resin material used as the resin aggregate can be appropriately selected from a wide range of thermoplastic resins. Usually preferred are polyethylene resin, polypropylene resin, polystyrene resin, polyethylene terephthalate resin, polyvinyl alcohol resin, vinyl chloride resin, ionomer resin, polyamide resin, acrylonitrile / butadiene / styrene (ABS). Resin, polycarbonate resin and the like can be used.
[0018]
Various fillers may be mixed in these thermoplastic resins. Examples of the filler that can be used include inorganic fibers such as glass fiber and carbon fiber, and inorganic particles such as talc, clay, silica, and calcium carbonate. Further, various additives such as an antioxidant, an ultraviolet absorber, a coloring agent, a flame retardant, and a low shrinkage agent may be blended.
[0019]
Further, the clip mounting seat provided on the back surface of the interior component is provided on the back surface of the base plate located at the connection portion between the outer peripheral frame and the resin rib in the resin aggregate. The base plate is flush with the outer peripheral frame, is longer than the width of the outer peripheral frame, and extends toward the center.
[0020]
A clip mounting seat is integrally formed on the back surface of the base plate, and the clip is slidably mounted on a seating plate in the clip mounting seat and held. It is attached.
[0021]
According to the automotive interior component of the present invention, the interior component is made of a lightweight and shape-retaining foamed resin base material and a resin aggregate laminated and integrated on the back side of the foamed resin base material. Since the clip mounting seat for mounting the clip is integrated with the resin aggregate, the weight can be reduced by eliminating the conventional resin core material with a very large projected area, and the resin material is saved. Becomes possible.
[0022]
Furthermore, a base plate extending from the outer frame to the center side of the interior component is integrated with a rigidity reinforcing portion, which is a connection portion between the outer frame and the resin rib in the resin aggregate, and a clip mounting seat is integrated with the back surface of the base plate. As a result, the rigidity of the clip mounting seat can be strengthened, and when the clip is press-fitted into the mounting hole of the vehicle body panel, the interior parts can be smoothly mounted on the vehicle body panel by a simple operation just hitting the front side of the base plate When the interior component is removed from the vehicle body panel via the base plate for maintenance or the like, the removal operation can be performed smoothly because the clip mounting seat and the resin aggregate are firmly integrated.
[0023]
Next, as a preferred embodiment of the present invention, in the clip mounting seat, a guide rib is provided on the back surface of the base plate integrated with the outer peripheral frame toward the seat plate side on which the clip is mounted in the clip insertion direction. It is characterized by being provided along.
[0024]
According to this embodiment, when the clip is mounted on the clip mounting seat, the clip can be easily mounted by using the guide ribs. Is transmitted directly to the clip through the guide ribs, so that the clip can be efficiently press-fitted into the mounting hole of the vehicle body panel.
[0025]
Further, as another preferred embodiment of the present invention, a foamed resin base material having a lightweight and shape-retaining property, and a resin aggregate laminated and integrated on the back surface of the foamed resin base material, The aggregate is composed of an outer peripheral frame, and resin ribs extending in the vertical and horizontal directions provided in the outer peripheral frame, and is an automobile interior part mounted on a vehicle body panel via a clip, wherein the clip The clip mounting seat for mounting is set at the connecting portion between the outer peripheral frame and the resin rib in the resin aggregate, is longer than the width dimension of the outer peripheral frame, and extends to the center side on the back surface of the base plate. And a clip piece is integrally formed on a seat plate of the clip mounting seat.
[0026]
According to this embodiment, the resin clip can be eliminated by integrally forming the clip piece on the seat plate of the clip mounting seat, so that the resin clip slide mounting step can be eliminated and the number of assembling steps can be reduced. can do.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of an interior part for an automobile according to the present invention will be described by exemplifying an automobile door trim.
[0028]
1 to 6 show a first embodiment in which the present invention is applied to an automobile door trim, FIG. 1 is a front view showing an automobile door trim, FIG. 2 is a sectional view showing the configuration of the automobile door trim, and FIG. FIG. 4 is a perspective view showing a shape of a resin aggregate in the vehicle door trim, FIG. 4 is a perspective view showing a clip mounting seat integrated with the resin aggregate in the vehicle door trim, and FIG. 5 shows a configuration of the clip mounting seat. FIG. 6 is a sectional view showing the outer peripheral frame of the resin aggregate.
[0029]
7 and 8 show a second embodiment of the present invention. FIG. 7 is a perspective view showing a clip mounting seat, FIG. 8 is a sectional view showing the configuration of the clip mounting seat, and FIG. It is sectional drawing which shows the structure of the clip mounting seat which shows 3rd Embodiment.
[0030]
A first embodiment of the present invention will be described with reference to FIGS. First, in FIGS. 1 and 2, an automobile door trim 10 includes a foamed resin base material 20 having a shape-retaining property formed into a desired curved surface shape, and a vertical and horizontal direction laminated on the back side of the foamed resin base material 20. And resin aggregates 30 each extending in an intersecting manner.
[0031]
More specifically, a skin (not shown) for imparting decorative properties may be laminated on the entire surface of the foamed resin base material 20, but partially on the surface of the foamed resin base material 20. It may be attached. Various functional components such as an inside handle escutcheon 11, a power window switch finisher 12, a speaker grille 13, and a pocket escutcheon 14 are attached to the door trim 10. In FIG. 2, reference numeral 14a indicates a pocket back cover, and reference numeral 40 indicates a vehicle body panel.
[0032]
By the way, the foamed resin base material 20 is subjected to heat softening treatment of the foamed resin sheet so as to have shape-retaining properties, then thermoformed into a desired shape, for example, cold-pressed with a molding die having a desired mold surface. For the portion having a higher expansion ratio, the foamed resin base material 20 may be formed into a required shape by vacuum molding.
[0033]
The foamed resin sheet has a configuration in which a foaming agent is added to a general-purpose thermoplastic resin. Examples of the thermoplastic resin include a polyethylene resin, a polypropylene resin, a polystyrene resin, a polyethylene terephthalate resin, a polyvinyl alcohol resin, and a chloride resin. Vinyl-based resins, ionomer-based resins, acrylonitrile / butadiene / styrene (ABS) resins, and the like can be used. As the foaming agent, an organic foaming agent such as azodicarbonamide and an inorganic foaming agent such as sodium bicarbonate can be used. In this embodiment, a foamed resin sheet obtained by appropriately adding sodium bicarbonate to a polypropylene resin is used. The expansion ratio of the foamed resin substrate 20 is set to 2 to 10 times, and the thickness is set to 0.5 to 30 mm, particularly 1 to 10 mm.
[0034]
Next, the resin aggregate 30 is made of a general-purpose synthetic resin molded body, and as a synthetic resin that can be preferably used usually, a polyethylene resin, a polypropylene resin, a polystyrene resin, a polyethylene terephthalate resin, a polyvinyl alcohol resin, a vinyl chloride resin Resin, ionomer resin, polyamide resin, acrylonitrile / butadiene / styrene (ABS) resin, polycarbonate resin and the like may be appropriately selected. In the present embodiment, a polypropylene resin is used in consideration of environment and recycling. Have been.
[0035]
In the resin aggregate 30, fillers such as inorganic fibers such as glass fibers and carbon fibers, and fillers such as inorganic particles such as talc, clay, silica and calcium carbonate are appropriately contained in the thermoplastic resin. It may be mixed.
[0036]
Further, as shown in FIG. 3, the resin aggregate 30 is composed of an outer peripheral frame 31 along the outer peripheral edge of the door trim 10 and a resin rib 32 extending crosswise in the vertical and horizontal directions so as to bridge between the outer peripheral frames 31. It is roughly configured.
[0037]
The resin rib 32 further includes a mounting seat 33a for mounting the inside handle escutcheon 11, a mounting seat 33b for mounting the power window switch finisher 12, a mounting seat 33c for mounting the speaker grill 13, and a mounting seat 33d for mounting the pocket escutcheon 14. Is formed.
[0038]
As described above, since the door trim 10 is constituted by the foamed resin base material 20 having shape retaining properties and the resin aggregate 30 laminated and integrated on the back surface of the foamed resin base material 20, the door trim 10 is different from the conventional one. Since the resin core material occupying the entire surface of the product can be eliminated and the use of the lightweight foamed resin base material 20, the weight of the product can be reduced by 40% or more compared to the conventional example. Not only can this be achieved, but also resin material can be saved significantly, which can contribute to cost reduction.
[0039]
Furthermore, since the foamed resin base material 20 has a porous structure, the door trim 10 has excellent sound absorbing performance and can reduce noise in the vehicle interior. Further, in order to maintain the sound absorbing property of the foamed resin base material 20, the skin laminated and integrated on the surface of the foamed resin base material 20 is preferably a permeable cloth material such as a woven fabric, a nonwoven fabric, or a knitted fabric. . In addition, a synthetic resin sheet, a synthetic resin film, a foam, a net, and the like can be used for the skin in addition to a breathable sheet such as a woven fabric, a nonwoven fabric, and a knitted fabric.
[0040]
In addition, the present invention is further characterized in that the clip mounting seat 50 is integrated with the resin aggregate 30. That is, as shown in FIGS. 4 to 6, the clip mounting seat 50 extends toward the center with respect to the width w1 of the outer peripheral frame 31 of the resin aggregate 30, and is integrated with the resin rib 32. It is supported by a highly rigid base plate 51 (length dimension w2). That is, a seating plate 53 for mounting the clip 60 is formed on the back surface of the base plate 51 via the vertical wall portion 52, and a locking hole 54 for mounting the clip 60 is formed in the seating plate 53.
[0041]
In this manner, the clip mounting seat 50 is integrally formed in an embossed shape on the back surface of the base plate 51 having a high rigidity integrated with the resin aggregate 30. Therefore, in the clip mounting portion, since the length w2 of the base plate 51 supporting the clip mounting seat 50 is set to be long and integrated with the resin rib 32, the rigidity of the clip mounting seat 50 can be expected to be enhanced. It does not deform even when a great amount of external force is applied.
[0042]
Further, when the door trim 10 is mounted on the vehicle body panel 40, the clip 60 is pressed into the mounting hole 41 of the vehicle body panel 40 by press-fitting as shown in FIG. The pressing force is transmitted to the seat 50 without waste, and the clip 60 can be easily press-fitted into the mounting hole 41 of the vehicle body panel 40, so that the operation of mounting the door trim 10 can be performed smoothly.
[0043]
Also, when the door trim 10 is detached from the vehicle body panel 40 during maintenance of the door trim 10, the clip mounting seat 50 is firmly integrated with the resin aggregate 30, so that if a force is applied to the door trim 10 in the peeling direction, the clip is removed. This peeling stress can be effectively transmitted to the mounting seat 50, the door trim 10 can be easily removed, and the removal operation can be performed smoothly. Although the clip mounting seat 50 is set along the lower edge of the door trim 10 as shown in FIG. 3, the clip mounting seat of the same configuration is also provided along both side edges of the door trim 10 although not shown. 50 can be set.
[0044]
Next, FIGS. 7 and 8 show a second embodiment of the present invention, in which the clip mounting seat 50 of the door trim 10 is integrated with the resin aggregate 30 as in the first embodiment.
[0045]
Further, in the second embodiment, there is an advantage that the mounting workability when mounting the clip 60 on the clip mounting seat 50 and the work efficiency when mounting the door trim 10 to the vehicle body panel 40 can be improved. .
[0046]
That is, the second embodiment is characterized in that guide ribs 55 extending from the base plate 51 to the seating plate 53 of the clip mounting seat 50 are provided along the slide insertion direction of the clip 60.
[0047]
Accordingly, when the clip 60 is inserted into the clip mounting seat 50, if the head flange 61 of the clip 60 is slid along the edge 55a of the guide rib 55, the guide rib 55 guides the clip 60 smoothly. You can proceed to.
[0048]
As shown in FIG. 8, when the clip 60 mounted on the clip mounting seat 50 is press-fitted into the mounting hole 41 of the vehicle body panel 40, the clip 60 is mounted by manually tapping the front side of the door trim 10. At this time, since the force applied from the product surface side is directly transmitted to the clip 60 through the guide rib 55, the clip 60 can be press-fitted into the mounting hole 41 of the vehicle body panel 40 with a small amount of labor. Mounting work can be accomplished with a small amount of labor, and mounting workability can be improved.
[0049]
Next, FIG. 9 shows a third embodiment of the present invention. Although the configuration in which the clip mounting seat 50 is integrated with the resin aggregate 30 is the same, in this third embodiment, another clip is used. 60 is abolished and the clip piece 56 extending from the seat plate 53 to the panel side is integrated.
[0050]
Therefore, according to the third embodiment, since the clip piece 56 is formed integrally with the clip mounting seat 50, the clip 60 can be eliminated, and the cost of the clip 60 and the man-hour for mounting the clip 60 can be reduced. This has the advantage that cost can be reduced.
[0051]
【The invention's effect】
As described above, the automotive interior part according to the present invention is a vehicle interior part obtained by laminating and integrating a resin aggregate on the back surface of a lightweight, foam-resin base material having shape retention properties. Since the clip mounting seat is integrated with the aggregate, the conventional heavy resin core material can be eliminated, and the effect of providing a lightweight, low-cost, and excellent sound-absorbing interior component for automobiles can be provided. Have.
[0052]
Furthermore, the clip mounting seat integrated with the resin aggregate extends from the outer peripheral frame of the resin aggregate toward the center of the product, and is formed on the back surface of the highly rigid base plate integrated with the resin rib. The rigidity of the mounting seat can be strengthened, it does not deform even when external force is applied, the shape near the clip mounting seat can be maintained for a long time, and when attaching to the body panel or removing from the body panel for maintenance, clip mounting Since the mounting force and the removing force can be effectively transmitted to the seat, there is an effect that the mounting and removing workability of the interior component can be improved.
[Brief description of the drawings]
FIG. 1 is a front view showing a first embodiment of an automobile door trim to which the present invention is applied.
FIG. 2 is a sectional view taken along line II-II in FIG.
FIG. 3 is a perspective view showing a shape of a resin aggregate in the automobile door trim shown in FIG. 1;
FIG. 4 is a perspective view showing a portion near a clip mounting seat in the resin aggregate shown in FIG. 3;
FIG. 5 is a cross-sectional view showing a configuration of a clip mounting seat in the automobile door trim shown in FIG.
FIG. 6 is a sectional view showing an outer peripheral frame of a resin aggregate in the automobile door trim shown in FIG. 1;
FIG. 7 is a perspective view showing a configuration near a clip mounting seat in a second embodiment of an automobile door trim to which the present invention is applied.
FIG. 8 is a cross-sectional view showing the configuration of the clip mounting seat shown in FIG.
FIG. 9 is a cross-sectional view showing a configuration of a clip mounting seat in a third embodiment of an automobile door trim to which the present invention is applied.
FIG. 10 is a front view showing a conventional automobile door trim.
11 is a sectional view taken along line XI-XI in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Automobile door trim 11 Inside handle escutsion 12 Power window switch finisher 13 Speaker grill 14 Pocket escutsion 20 Foam resin base material 30 Resin aggregate 31 Outer frame 32 Resin ribs 33a to 33d Mounting seat 40 Body panel 41 Mounting hole 50 Clip mounting seat 51 Base plate 52 Vertical wall portion 53 Seating plate 54 Lock hole 55 Guide rib 56 Clip piece 60 Clip 61 Head flange w1 Width w2 of outer peripheral frame w2 Length of base plate

[0011]
That is, the automotive interior part according to the present invention comprises a foamed resin base material having a lightweight and shape-retaining property, and a resinous aggregate laminated and integrated on the back surface of the foamed resinous base material. The material comprises an outer peripheral frame and a cross-shaped resin rib disposed in the outer peripheral frame, and is an automobile interior part mounted on a vehicle body panel via a clip, wherein the clip is mounted. The clip mounting seat is set at a connecting portion between the outer peripheral frame and the resin rib in the resin aggregate .
Further, as another embodiment, the clip mounting seat is longer than the width of the outer peripheral frame and is integrally formed on the back surface of a base plate extending toward the center. .

[0022]
Further, according to another embodiment of the present invention, a base plate extending from the outer peripheral frame to the center side of the interior component is integrated with the rigidity reinforcing portion, which is a connection portion between the outer peripheral frame and the resin rib in the resin aggregate, Since the clip mounting seat is integrated on the back of this base plate, the rigidity of the clip mounting seat can be enhanced, and when pressing the clip into the mounting hole of the vehicle body panel, simply tapping on the front side of the base plate The interior parts can be smoothly attached to the car body panel with the clip mounting seat and the resin aggregate are firmly integrated even when the interior parts are removed from the car body panel via the base plate for maintenance etc. Removal work can also be performed smoothly.

[0025]
Further, as another preferred embodiment of the present invention, a foamed resin base material having a lightweight and shape-retaining property, and a resin aggregate laminated and integrated on the back surface of the foamed resin base material, The aggregate is composed of an outer frame and an intersecting resin rib disposed in the outer frame, and is an automobile interior part mounted on a vehicle body panel via a clip. The clip mounting seat for mounting is set at a connecting portion between the outer peripheral frame and the resin rib in the resin aggregate, and a clip piece is integrally formed with a seat plate in the clip mounting seat.
Further, as another embodiment, the clip mounting seat is longer than the width of the outer peripheral frame and is integrally formed on the back surface of a base plate extending toward the center. .

[0011]
That is, the automotive interior part according to the present invention is a lightweight foamed resin base material having shape-retaining properties, a lightened shape, having a reinforcing function, and a resin laminated and integrated on the back surface of the foamed resin base material. The above-mentioned resin aggregate is composed of an outer peripheral frame and a resin rib extending in an intersecting manner disposed in the outer peripheral frame, and the resin aggregate is mounted on a vehicle body panel via a clip. The clip mounting seat for mounting the clip is set to a connecting portion between an outer peripheral frame and a resin rib in a resin aggregate.
Further, as another embodiment, the clip mounting seat is longer than the width of the outer peripheral frame and is integrally formed on the back surface of a base plate extending toward the center. .

[0021]
According to the automotive interior part according to the present invention, the foamed resin base material having a light-weight and shape-retaining property and the hollow shape laminated and integrated on the back side of the foamed resin base material , and have a reinforcing function. Since the interior parts are composed of the resin aggregate provided and the clip mounting seat for attaching the clip is integrated with the resin aggregate, by eliminating the conventional resin core material with a very large projected area The weight can be reduced and the resin material can be saved.

[0025]
Further, as another preferred embodiment of the present invention, a light-weight foamed resin base material having shape retaining properties, a lightened shape, and having a reinforcing function, are laminated and integrated on the back surface of the foamed resin base material. The resin aggregate is composed of an outer peripheral frame and a cross-shaped resin rib disposed in the outer peripheral frame, and is attached to a vehicle body panel via a clip. A clip mounting seat for mounting the clip is set at a connecting portion between an outer peripheral frame and a resin rib in a resin aggregate, and a clip piece is integrated with a seat plate in the clip mounting seat. It is characterized by being molded into.
Further, as another embodiment, the clip mounting seat is longer than the width of the outer peripheral frame and is integrally formed on the back surface of a base plate extending toward the center. .

[0038]
As described above, the door trim 10 includes the foamed resin base material 20 having a shape-retaining property, the resin aggregate 30 having a lightening shape laminated and integrated on the back surface of the foamed resin base material 20 , and having a reinforcing function. , The resin core material occupying the entire surface of the product as in the related art can be eliminated, and the weight of the product is smaller than that of the conventional example because the lightweight foamed resin base material 20 is used. In addition, the weight can be reduced by 40% or more, and the resin material can be largely saved, which can contribute to cost reduction.

[0051]
【The invention's effect】
As described above, the automotive interior part according to the present invention is a light-weight, light-weight, resin-aggregate having a reinforcing function laminated and integrated on the back surface of a foamed resin base material having shape retention properties. The interior parts for automobiles are made of resin aggregates and the clip mounting seats are integrated, so the conventional heavy resin core material can be eliminated, light weight, low cost and excellent sound absorption performance. This has the effect of being able to provide automotive interior parts.

Claims (3)

The foamed resin base material (20) is lightweight and has shape retention properties, and a resin aggregate (30) laminated and integrated on the back surface of the foamed resin substrate (20). ) Is composed of an outer peripheral frame (31) and a resin rib (32) extending in the vertical and horizontal directions provided in the outer peripheral frame (31), and is attached to the vehicle body panel (40) via a clip (60). Automotive interior parts to be mounted,
A clip mounting seat (50) to which the clip (60) is attached is set at a connecting portion between the outer peripheral frame (31) and the resin rib (32) in the resin aggregate (30), and the outer peripheral frame (31). An interior part for an automobile, wherein the interior part is longer than the width dimension (w1) and is integrally formed on the back surface of a base plate (51) extending toward the center. In the clip mounting seat (50), a guide rib (55) is provided on a back surface of a base plate (51) integrated with the outer peripheral frame (31) toward a seat plate (53) on which the clip (60) is mounted. The interior part for an automobile according to claim 1, characterized in that is provided along a direction in which the clip (60) is inserted. The foamed resin base material (20) is lightweight and has shape retention properties, and a resin aggregate (30) laminated and integrated on the back surface of the foamed resin substrate (20). ) Is composed of an outer peripheral frame (31) and a resin rib (32) extending in the vertical and horizontal directions provided in the outer peripheral frame (31), and is attached to the vehicle body panel (40) via a clip (60). Automotive interior parts to be mounted,
A clip mounting seat (50) for mounting the clip (60) is set at a connecting portion between the outer frame (31) and the resin rib (32) in the resin aggregate (30), and has a width of the outer frame (31). It is longer than the dimension (w1) and is formed on the back surface of the base plate (51) extending toward the center, and the clip piece (56) is attached to the seating plate (53) of the clip mounting seat (50). ) Is an integrally molded automotive interior part.

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