JPH09286235A - Interior trim material for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To add elasticity required for forming without changing the material of the cloth by napping the surface of original cloth made by weaving the strands of pile threads and ground threads and by making pores in the napped cloth having a resin sheet attached to the reverse surface thereof to cut a part of ground threads. SOLUTION: In the last process of the second working of napped cloth 15, a needle roll for making pores has many projecting needles with edges on an outer periphery of a rotating roll and makes many pores 17 in the napped cloth 15 by putting the needles on the needle roll into contact with a resin sheet surface 16 of the napped cloth 15 made by weaving the strands of pile threads 12 and ground threads 13 to cut a part of ground thread 13. The cut portions or the intervals thereof are changed according to conditions, but the interval of 5 to 10μm is most suitable when considering that the pile threads 12 come off and wear without breaking a texture. The intervals (a), (b) between loops are apt to widen by cutting a part of ground threads 13 in this way to improve the forming of the napped cloth 15 when the napped cloth 15 is formed.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an automobile interior material.

[0002]

2. Description of the Related Art In an automobile interior material, as shown in FIG. 5, a cloth material is used as a contact member (skin material) 9 for a part of the door trim body 11 for the purpose of decorating the door trim body 11 of the door trim 10. Alternatively, there is one that is attached to the whole. There are various methods for forming the center contact member 9, but the following technique is disclosed in, for example, Japanese Patent Application Laid-Open No. 2-305627.

That is, as shown in FIGS. 6 and 7, after the adhesive is applied to the center contact portion of the door trim main body 11, the door trim main body 11 is set on the mold surface of the upper die 1 for crimping, and the door trim main body is also set. The center contact member 9 whose peripheral edge is clamped is placed on the mold surface of the lower crimping mold 2 having a mold surface shape that matches the surface shape of the center contact portion 11. After that, the upper and lower molds 1 and 2 for crimping are clamped so that the door trim body 11 and the center contact member 9
While adhering and, the hot-melt cutting blade 3 that is vertically movable along the outer periphery of the lower die 2 for pressure bonding is moved up, and the peripheral edge end 9a of the center contact member 9 is heat-fused to a required external shape. Further, the wood grain bar 4 installed so as to be movable up and down along the inner circumference of the heat fusing blade 3 is lifted up.
The peripheral edge terminal 9a of the center contact member 9 by the door trim body 11
It is press-fitted into the circumferential groove 11a formed in.

Although there are various cloth materials for the inner contact member 9 to be stuck, a raised cloth 15 such as a tricot cloth is used as a material having a high-class appearance and warmth in terms of appearance or feel as an interior material. I often do it.

In general, the following steps are adopted in the manufacturing process of the raised cloth 15: That is, the pile yarn 12 first
A woven fabric 14 is made by knitting and twisting a twisted yarn composed of the base yarn 13 and
After dyeing the base cloth 14, the pile yarn 12 is raised.
Next, resin impregnation such as spray impregnation, coating, and dipping is performed to perform resin processing for increasing the tensile strength of the cloth. Thereafter, the PVC sheet 16 is laminated on the non-raised surface (back surface). It should be noted that FIG. 8 is a manufacturing process diagram of the cloth 15 and FIG.
The fiber enlarged view of the cloth 15 is shown in FIG.

[0006]

However, since the surface of the door trim 10 on which the cloth 15 for the center contact member 9 is mounted is curved, the cloth 15 having a small elongation is not suitable for molding. In addition, since the normal cloth 15 has a large variation in elongation rate depending on manufacturing conditions, lots, and parts, and the performance is not stable, the initial quality of manufacturing the middle contact member 9 of the door trim 10 is floating, peeling, wrinkling, wavy, short-circuiting, etc. In addition, there is a possibility that defects such as floating, peeling, and short circuit may occur due to the return stress (contraction) of the cloth 15 in the durability quality. It is conceivable to use a stretchable yarn or the like to give the cloth 15 moldability, but in this case, the cloth 15 may be expensive.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an automobile interior material which can be molded into a curved shape.

[0008]

In order to achieve this object, the invention according to claim 1 is to nap the surface of a woven fabric made by knitting twisted yarns of pile yarns and ground yarns, and at the same time, to make the back face of the woven fabrics. A raised cloth having a resin sheet adhered thereto is provided with holes to cut a part of the ground yarn.

The invention according to claim 2 has a structure in which the hole according to claim 1 is opened from the side to which the resin sheet is attached.

According to a third aspect of the present invention, a raised cloth is provided on the surface of a raw fabric obtained by knitting and knitting twisted yarns of pile yarns and ground yarns. Cut the part,
A resin sheet is attached to the back side of the raised cloth with a low basis weight fiber layer interposed.

Here, the perforations of the inventions of claims 1 and 2 are needle rolls in which a large number of needles having blades are provided on the rotary roll in the final step of secondary processing of the raised cloth. By making a hole in the cloth and cutting a part of the ground yarn (ground yarn),
Formability is imparted to the cloth by making it easier to increase the distance between the loops.

Since the pile spreads like a fan on the surface of the cloth, the ground thread cannot be seen, so no holes can be seen from the surface of the cloth. Also, some defects of the ground thread can be seen in the original cloth before molding. However, it is also possible to make the defect invisible because hair collapse occurs during crimping.

According to the third aspect of the present invention, the cloth is pierced into a desired shape with a size that is easily visible, and at the same time, the back of the piercing cut is provided to prevent the laminate layer from being directly seen through. It has a double structure by providing layers. In this case, a suede-like cloth or an ultrafine fiber non-woven fabric can be applied as the cloth, and a low basis weight material such as a jersey that does not inhibit elongation is used for the back layer.

For the piercing cut, a high-density cloth may be used to prevent thread fraying due to the piercing cut, or fusing piercing by laser cutting or the like may be used.

As a result, the variation in secondary design such as the three-dimensional appearance of the cloth increases, and the effect of improving the elongation increases.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a brushed cloth 15 for decorative purposes is attached to a door trim 10 of an automobile as a contact member (skin material) 9 on a part or the whole of a door trim body 11. There is something.

Usually, the napped cloth 15 is supplied through secondary processing such as back surface laminating in the cloth manufacturing process shown in FIG. 8. In this embodiment, however, the final processing of the secondary processing shown in FIG. Needle roll 18 as shown in
By forming a hole in the cloth 15 in the hole forming step by, the moldability is imparted to the cloth 15.

Here, the needle roll 18 is provided with a large number of needles 18a having blades on the outer circumference of the rotary roll. The needles 18a of the needle roll 18 are formed by twisting the pile yarn 12 and the ground yarn 13. By contacting the surface of the resin sheet 16 of the knitted cloth 15, as shown in FIG.
5. A large number of holes 17 are opened in 5, and a part of the ground yarn (ground yarn) 13 is cut. The cut portions and intervals vary depending on the density of the structure of the cloth 15 (interval between loops), the molding shape and the required elongation, but the interval is 5 to 5 in consideration of the loss of the pile yarn 12 without damaging the structure, wear resistance, and the like. 10 mm is suitable.

By cutting a part of the ground yarn 13, the intervals a and b between the loops during the formation of the cloth 15 are easily expanded, and the formability is improved. Since the raised yarns 15a of the pile yarns 12 spread in a fan shape on the surface of the cloth 15, the ground yarns 13 cannot be seen, and therefore the holes 17 cannot be seen from the surface of the cloth 15. In addition, cloth 15 before molding
Even if a slight defect of the ground yarn 13 is visible on the original fabric 14, it is possible to make the defect invisible because hair collapse occurs during the crimping process.

As described above, by punching the hole 17 in the cloth 15 and cutting a part of the ground yarn 13, it is possible to impart the elongation required for molding without changing the material of the cloth 15. Also, stable performance can be provided with little variation in the elongation rate between the manufacturing conditions, lots, and parts of the cloth 15. Therefore, it is possible to prevent the occurrence of defects such as floating, peeling, wrinkles, and shorts in the contact manufacturing process and durability of the door trim 10.

Further, since the material of the cloth 15 is not changed, the design as a decorating material is not affected, and it is possible to use and share the same brushed cloth 15 with each other.

FIG. 4 is a view showing another embodiment of the present invention. In this embodiment, the hole 17 which is opened by the needle roll 18 in the above-mentioned embodiment is replaced with a hole of a size which is easily visible. A piercing cut portion 19 is provided. In addition, a back layer 20 is provided to prevent the laminate layer 16 from being directly seen through the piercing cut portion 19 to form a double structure. In this case, suede-like cloth or ultrafine fiber nonwoven fabric can be applied as the cloth 15, and the backing layer 20 is made of a low basis weight material such as a jersey that does not inhibit elongation.

When forming the piercing cut portion 19, in order to prevent the thread from fraying due to the piercing cut,
It is possible to use fusing piercing by using high density cloth or laser cutting.

As a result, the piercing cut portion 19 can be used as the pattern of the cloth 15, and the variation of the secondary design such as the three-dimensional effect of the cloth 15 is increased.
The appearance can be further enhanced, and the effect of improving the elongation rate is increased.

[0026]

INDUSTRIAL APPLICABILITY As described above, the present invention provides a nap-like cloth having the surface of a woven fabric made by knitting twisted yarns of pile yarns and ground yarns fluffed, and the back surface of which is attached a resin sheet. By making a hole from the resin sheet side and cutting a part of the ground yarn, it is possible to impart an elongation rate required for molding with a slight cost increase without changing the material of the cloth. Further, it is possible to provide stable performance with little variation in elongation rate among cloth manufacturing conditions, lots, and parts. Therefore, the door trim center contact manufacturing process and the floating and peeling on the durability quality,
Problems such as wrinkles and shorts can be prevented in advance.

[Brief description of drawings]

FIG. 1 is a perspective view of a door trim including a cloth (interior material) according to an embodiment of the present invention.

FIG. 2 is a process explanatory diagram of cross needle hole processing in the embodiment of the present invention.

FIG. 3 (a) is a fiber enlarged view of the same cloth. (B) It is a fiber cross-sectional view of the same cloth.

FIG. 4 (a) is a fiber enlarged view of a cloth according to another embodiment of the present invention. (B) It is a fiber cross-sectional view of the same cloth.

FIG. 5 is a perspective view of a door trim including a conventional cloth (interior material).

FIG. 6 (a) is a cross-sectional view of a conventional door trim upper / lower mold before mold clamping. (B) It is sectional drawing after mold clamping of the door trim upper and lower molds.

FIG. 7 (a) is a sectional view of the door trim top and bottom type before graining processing. (B) It is sectional drawing at the time of the wood trimming process of the same door trim top and bottom type.

FIG. 8 is a process explanatory diagram of a conventional cross lamination process.

FIG. 9 (a) is an explanatory view of a conventional cloth fiber. (B) It is the same enlarged view.

[Explanation of symbols]

 11 Door trim main body 12 Pile thread 13 Ground thread 14 Original cloth 15 Raised cloth 16 Resin sheet 17 Hole

Claims (3)

[Claims] 1. A woven fabric made by twisting and knitting a pile yarn and a ground yarn is napped, and a nap-like cloth having a resin sheet attached to the back side thereof is perforated to form a hole in the woven fabric. An interior material for automobiles, which is characterized by being partially cut. 2. The automobile interior material according to claim 1, wherein a part of the ground yarn is cut by making a hole from the resin sheet side. 3. A raised cloth having a raised surface on which a woven cloth made by knitting twisted yarns of pile yarns and ground yarns is perforated to cut a part of the ground yarns, An interior material for automobiles, characterized in that a resin sheet is attached to the back side of the cloth with a low basis weight fiber layer interposed.