JPH11115489A - Surface skin material for interior decoration and interior part of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive surface skin material for interior decoration of a vehicle which maintains the decoration property and the touch feeling in a good condition even after it is mounted on an interior part and an inexpensive interior part on which this surface skin material is mounted. SOLUTION: This surface skin material 1 for interior decoration of a vehicle of a fabric product has a three-layer structure composed of three parts, namely, a thin gauzelike woven fabric 2 with good decoration property, a thick nonwoven fabric 3 and a sewing thread which sews both of them by overlapping them. Since this surface skin material 1 has weak restoration force that it is shrunk and restored although it can be elongated in a good condition, a shrinkage amount in a recessed and bent part is small so that it is not readily peeled off and its appearance is kept in a good condition, even if the surface skin material 1 is bonded and fixed on a recessed and projection interior face of a projection part for armrest 5a of a door trim 5 in a car room by bending and elongating it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin material mounted on an interior part such as a door trim of a vehicle for partial decoration, and a vehicle interior part to which the skin material is mounted.

[0002]

2. Description of the Related Art As a means for improving the decorativeness and comfort of a vehicle interior, a cloth-like skin material having excellent decorativeness and feel is attached to the interior surface of an interior component such as a door trim in the vehicle interior. That is being done. For example, FIG. 5 shows a door trim 15 of an automobile. As shown in FIG. 6, the door trim 15 is integrally formed with a protrusion 15a for armrest, and the surface of the protrusion 15a and the vicinity thereof have decorativeness and touch feeling. An excellent skin material 11 such as a knitted cloth is attached to enhance the decorativeness of the door trim 15 as a whole, thereby improving the feel when the armrest is applied.

[0003] The skin material 11 is a sheet-like decorative material.
The material includes a wide variety of materials such as a single piece of artificial leather, woven cloth, and knitted cloth. FIG. 6 shows a door trim 1 molded into a desired shape.
5 shows a cloth product bonded with the adhesive 17. The skin material 11 of this cloth product is generally a single-layer knitted fabric which is a single piece and has a sense of thickness, and is excellent in cushioning property and feel when touched. 11 is mounted on the door trim 15 as follows.

[0004] When the door trim 15 is formed by molding, a wood grain groove 15b is formed around the protruding portion 15a. The surface of the protrusion 15a of the door trim 15 and the protrusion 15a
a, and an adhesive 17 is applied between the wood grain groove 15b and
Large-sized single-layer knitted fabric skin material 11 stretched lengthwise and widthwise
Is adhered to the uneven surface of the surface of the protruding portion 15a while following and bending along the uneven surface. The skin material 11 of the knitted fabric has excellent vertical and horizontal elasticity.
When pressed against the uneven surface a, the skin material 11 adheres to the uneven surface without wrinkles. Finally, the periphery of the skin material 11 is packed into the wood grain groove 15b, and unnecessary portions of the periphery are cut and removed along the wood grain groove 15b.

[0005]

By the way, the surface material 11 of a single-layer knitted cloth is provided on the uneven surface of the projection 15a of the door trim 15.
When the adhesive is bonded using its good elasticity, the surface material 11 is adhered in a good state with the skin material 11 extended at the convex portion 16m on the surface of the protruding portion 15a, and the good state is maintained and appearance defects occur. Is relatively small, but the protrusion 15
The following problem is likely to occur in the concave portion 16n on the surface a.

That is, the bonding of the knitted fabric to the recessed portion 16n of the skin material 11 is performed by partially extending the skin material 11 when approaching the recessed portion 16n as shown by a chain line and an arrow in FIG. The skin material 11 is pressed and adhered to the concave portion 16n so that the skin material 11 also adheres to the concave portion 16n with good adhesion without wrinkling. However, after bonding, the skin material 11 extends to the concave portion 16n and extends to the bonded skin material 11. The accumulated repulsive force sometimes occurs, and the repellent force causes the skin material 11 adhered to the concave portion 16n to contract. The skin material 11 made of a single-layer knitted fabric having good elasticity has a large repulsive force after extension, and when the skin material 11 is bent and extended at a substantially right angle to a concave surface having a substantially right-angled cross section such as the concave portion 16n, it is bonded. 7
As shown by the arrow in (B), the substantially right-angled bent portion 11 ′ of the skin material 11 may contract with a large repulsive force, separate from the door trim 15, and rise. When the skin material 11 partially rises from the door trim 15 in this way, wrinkles are generated in the raised portions, and the overall decorativeness of the skin material 11 is improved.
Inconveniences such as a decrease in feel and an easy breakage from a raised portion occur.

[0007] It has been known that the occurrence of the above-mentioned inconvenience increases when the deployment rate of the bent portion of the skin material 11 exceeds 20%.
There is a problem that the shape of the concave and convex curved surface of the vehicle interior parts such as the door trim to be mounted and the design shape of the interior parts are restricted.

[0008] Further, as a skin material or interior part for a vehicle interior for preventing occurrence of the above-mentioned troubles, a skin material bent and formed into a desired shape in advance is installed in a mold of a door trim molding machine, and the door trim is formed into a predetermined shape. There is an in-mold molded product that is simultaneously molded with the door trim. For example, as shown in FIG. 8A, a two-layered skin material 21 is manufactured by laminating a thermoplastic resin sheet 23 such as PP on the back surface of a thin skin 22 such as a knitted fabric. FIG.
As shown in FIG. 8B, a preform is formed into a desired shape, and the shape of the door trim 25 is integrated with the door trim 25 indicated by the dashed line in FIG.

In the skin material 21 molded in the mold as described above, the shape of the concave and convex curved surface can be variously set by the resin sheet 23, so that the expansion rate of the skin 22 is increased. There is no fear of floating, and the above-mentioned problems are prevented from occurring. However, since the number of manufacturing steps and manufacturing equipment increases, there is a problem that the manufacturing cost of the interior parts increases.

An object of the present invention is to provide an inexpensive interior material for a vehicle interior which maintains good decorativeness and feel even after being attached to an interior component, and an inexpensive interior component equipped with the exterior material. Is to do.

[0011]

According to the present invention, a skin material for a vehicle interior which achieves the above object is obtained by laminating one thin gauze-like woven fabric, one nonwoven fabric, and this woven fabric and nonwoven fabric. It is characterized in that the plurality of portions are configured with a sewing thread which is sewn in a linear shape.

The woven fabric to be sewn to the non-woven fabric is a thin cloth such as a gauze woven with a weft and a warp, such as a cotton thread, and has the same decorativeness as the skin of a conventional skin material formed in a mold. Have. As the nonwoven fabric to be sewn to the woven fabric, a material having a small thickness and good cushioning property is appropriate, and the desired rigidity and feel of the skin material are given by the nonwoven fabric. The sewing thread for sewing the woven fabric and the nonwoven fabric is formed by sewing the woven fabric and the nonwoven fabric together to form a two-layer fabric, and as a third-layer fabric in the two-layer fabric.

[0013] Further, the interior part of the vehicle, which achieves the above object of the present invention, is characterized in that the interior skin material having the three-layer structure is deformed so as to be in intimate contact with the uneven surface of the interior surface of the vehicle, and is adhered and fixed with an adhesive. It is a feature.

The interior parts here are door trims, etc.
In the case of door trim, a three-layered interior skin material is bonded and fixed to the uneven surface of the armrest projection formed into a predetermined shape with an adhesive.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 and FIG. 2, which is a partially enlarged sectional view of FIG.
1 shows a vehicle interior skin material 1 according to one embodiment of the present invention, and a door trim 5 of a vehicle interior component to which the skin material 1 is attached. FIGS. 3 and 4 show examples of the structure of the skin material 1. The skin material 1 has one thin gauze-like woven fabric 2, one nonwoven fabric 3,
This is a single piece of fabric composed of a woven fabric 2 and a non-woven fabric 3, each of which is stitched up and down, and sewing threads 4 stitched linearly at a plurality of locations.

The woven fabric 2 is a thin cloth such as a gauze woven of a weft such as a cotton thread and a warp, and a decorative property by color is appropriately added by means such as dyeing. The decorative woven fabric 2 has the same appearance as the skin 22 formed in the mold of FIG. 8 and has appropriate stretchability in the vertical and horizontal directions, though not as large as the knitted fabric of FIG. The nonwoven fabric 3 has a certain thickness and has a moderate cushioning property, and the nonwoven fabric 3 has the same feel and rigidity due to the same thickness feeling as the knitted skin material 11 of FIG. Given. The sewing thread 4 for sewing the woven fabric 2 and the non-woven fabric 3 to form a two-layer fabric is a sewing thread for sewing the non-woven fabric 3 on the back surface of the woven fabric 2, and for example, as shown in FIG. The lower thread 4a is composed of the upper thread 4b, and the lower thread 4a is arranged in parallel on the back surface of the nonwoven fabric 3 at a constant pitch. The woven fabric 2, the nonwoven fabric 3 and the lower thread 4a form a three-layer fabric. The upper thread 4b of the sewing thread 4 prevents the fibers of the two-layered fabric in which the woven fabric 2 and the non-woven fabric 3 are integrated by stitching, from coming loose. This thread 4
Is not limited to one in which the woven fabric 2 and the nonwoven fabric 3 are sewn straight.

As described above, the elasticity of the skin material 1 having a three-layer structure made of the woven fabric 2, the nonwoven fabric 3, and the sewing thread 4 is peculiar in that it is inferior in extensibility but inferior in shrinkage. That is, the nonwoven fabric 3
Only has physical properties that are hardly reduced and restored even when stretched.
It has been experimentally confirmed that even if the nonwoven fabric 3 is stretched and then restored by its own repulsion, it hardly recovers due to the action of the nonwoven fabric 3. Actually, the repulsive force generated when the entire skin material 1 is extended is 1/10 of the repulsive force of the woven fabric 2 alone.
It has been found to be as small as possible.

Therefore, when the skin material 1 of the above embodiment is stretched and adhered to the uneven interior surface of the vehicle cabin, the repulsive force after the adhesion is small and hardly shrinks. Therefore, even if the skin material 1 is adhered and fixed to the uneven interior surface by increasing the expansion rate to a value exceeding 20%, there is no problem such as floating.
A door trim 5 equipped with such a skin material 1 is shown in FIGS. 1 and 2, and the basic structure of the door trim 5 may be the same as that of the door trim of FIG. 5a and a wood groove 5b around it.

After the door trim 5 is molded, an adhesive 7 is applied to the surface of the protruding portion 5a and the periphery thereof, and the large-sized three-layered skin material 1 extended vertically and horizontally is woven with the woven fabric 2. On the front surface side, it is bonded to the uneven surface of the projecting portion 5a while bending and extending in accordance with the uneven surface, and then the peripheral portion of the skin material 1 is packed into the wood grain groove 5b, and along the wood grain groove 5b. Unnecessary portions of the peripheral portion are cut and removed. In this way, by bonding the three-layered skin material 1 to the uneven surface of the protrusion 5a of the door trim 5 while extending the surface material, the skin material 1 has no wrinkles on the convex portion 6m and the concave portion 6n of the uneven surface of the protrusion 5a. Good adhesion. In particular, the skin material 1 is provided in the recess 6n.
Is extended and adhered, the repulsive force of the skin material 1 generated in the concave portion 6n is very small, and the skin material 1 bonded to the concave portion 6n hardly shrinks. The layered skin material 1 is always adhered in a good state without being lifted.

As described above, the expansion rate of the bent portion of the three-layered skin material 1 which is favorably adhered to the uneven surface of the door trim 5 may be increased from the conventional 20% to about 35%. Has been confirmed by As a result, it becomes easy to diversify the shapes of the concave and convex curved surfaces of the vehicle interior parts other than the door trim 5 and the door trim, and the design shapes of the interior parts.

[0022]

The skin material for vehicle interior according to the present invention is a fabric having a three-layer structure of a woven fabric, a nonwoven fabric and a sewing thread. The woven fabric improves the appearance and cosmetic properties of the entire skin material, and the nonwoven fabric has an appropriate cushion. The elasticity improves the feel when armrests are applied, and the non-woven fabric reduces the repulsion when the entire skin material is extended to about 1/10 that of the conventional skin. It is possible to provide a skin material of high practical value that can be easily and easily bonded with an adhesive without wrinkles on its surface.

According to the vehicle interior part of the present invention,
It is only necessary to bond the interior skin material to the uneven interior surface with an adhesive, and because the skin material is a low-priced product made of woven and non-woven fabrics sewn with yarn, such as gauze, interior parts with excellent decorativeness The manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view including a partially enlarged view of an interior part (door trim) showing an embodiment of the present invention.

2 is an enlarged sectional view including a partially enlarged view taken along the T ₁ -T ₁ line in FIG.

FIG. 3 is a partial exploded perspective view of the interior skin material of FIG. 1;

FIG. 4 is a perspective view including a partly omitted portion of the skin material of FIG. 3;

FIG. 5 is a front view of a conventional interior skin material (knitted fabric) and interior components (door trim).

FIG. 6 is an enlarged sectional view taken along line T ₂ -T ₂ in FIG.

7 (A) is a cross-sectional view when a skin material is attached to the interior component of FIG. 6, and FIG. 7 (B) is a cross-sectional view of the interior component after attachment.

FIG. 8 illustrates another conventional interior skin material.
(A) is a side view of the skin material before molding, and (B) is a side view of the skin material after molding.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Skin material 2 Woven cloth 3 Nonwoven fabric 4 Sewing thread 5 Interior parts (door trim) 7 Adhesive

Claims (2)

[Claims] 1. A three-layer structure comprising one gauze-like woven fabric, one non-woven fabric, and a sewing thread that linearly sew the woven fabric and the non-woven fabric at a plurality of locations in a state where the woven fabric and the non-woven fabric are stacked. A skin material for vehicle interiors characterized by the following. 2. An interior part for a vehicle, wherein the interior skin material according to claim 1 is bent so as to be in intimate contact with the uneven surface of the interior part of the vehicle, and is adhered and fixed with an adhesive.