JPH0260849A - Mat for automobile and its manufacture - Google Patents

Abstract

PURPOSE:To prevent the attachment of dust and dirt to a mat for automobile by providing piles including conductive fiber woven in penetrating up to the rear side of a basic cloth and a conductive layer which consists of a conductive material forming between the piles and a backing material on condition contacting to the conductive fiber. CONSTITUTION:Plural piles 17 are woven in to a basic cloth 14 to make up a specific volume, and the piles are fixed to the basic cloth with a binding thread 18. And moreover, the basic cloth 14 is backed with a backing material 12 which consists of a synthetic resin. In this mat for automobile 11, the basic ends of the piles 17 are projected from the rear side of the basic cloth 14, and the piles are formed of fibers 17a of a nylon fiber 15 and fibers 17b of a nylon fiber 15 including a conductive fiber 16, being woven thoroughly to the basic cloth 14. The piles 17b are placed on condition contacting to a conductive layer 13 in which the static electricity is absorbed, and the static electricity is discharged to the air through the conductive fiber 16. When getting on and off the car, or in the running, the static electricity generated by the rubbing of shoes or cuffs is absorbed by the conductive layer 13.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an automobile mat and a method for manufacturing the same, and more specifically, the automobile mat itself has a discharge function,
The present invention relates to an automobile mat that prevents the generation of static electricity and prevents dust from adhering to the automobile mat, and a method for manufacturing the same.

(Prior Art) Conventionally, automobile mats have been commercially available, which are made of a base cloth using insulating RAM and piles made of insulating fibers set into a predetermined volume. However, since these car mats are manufactured from an insulating material, they tend to generate static electricity due to friction with the hems of shoes and pants when getting in and out of a car or while driving. The car mat was electrically charged, making it easier to attract dirt and dust. For this reason, there has been a problem that it gets dirty easily and must be cleaned frequently.

In order to solve this problem, it has been proposed that a conductive material be used as the material for car mats to prevent the generation of static electricity for 1 hour. Three examples of such automobile mats are described in Japanese Patent Laid-Open No. 10632/1993.

As shown in FIG. 8, this automobile mat (1) uses conductive yarn (3) for some of the yarns constituting the base fabric (2) to form a conductive base fabric, and Attach a connection cord (5) to one end of the mat (1) for electrical connection to the vehicle body.
) is attached.

In this car mat, the connection cords 1 to 1 are
(5) It is attached to the other end or to the vehicle body, and is designed to ground static electricity generated by friction with the hem of shoes or pants when getting in and out of a car or while driving, to the vehicle body.

(Invention or Problem Solved Section 8) However, this car mat is designed to ground the static air generated by the connection cord attached to one end of the car mat 1 to the car body side. Because of this, there have been cases where the +'J= car mat has slipped when getting on and off the car, and the connection coat has come off from the car body, preventing it from being grounded. In order to attach the connection cord, it was necessary to provide a groundable mounting part on the vehicle body side. Furthermore, since the car itself does not come into direct contact with the body or the ground,
It was necessary to attach a grounding means such as an earth belt to the body to ground the static electricity of the charged body.

The present invention has been made in view of these problems, and provides a mat for an automobile that is equipped with a discharge mechanism in the automobile mat itself to prevent the generation of static electricity and prevent dust and dust from adhering to the automobile mat. and its manufacturing method.

(Meaning for Solving the Problem) That is, the invention of claim 1 provides a structure in which a pile containing conductive fibers is implanted so as to penetrate to the back surface of a base fabric, and a layer between the pile and a backing material. The conductive # formed
The present invention is an automobile mat characterized by comprising a conductive layer made of a conductive material provided in contact with the A fibers.

Further, the invention according to claim 2 is a mat for an automobile, characterized in that the conductive fibers are carbon #&male manufactured from acrylonitrile polymer fibers.

Further, the invention according to claim 3 provides an automobile mat, characterized in that the conductive layer made of a conductive material is a layer formed by laminating short fibrous carbon material manufactured from acrylonitrile polymer fibers. It is.

In addition, the invention according to claim 4 provides a method in which a conductive material in the form of fibers, granules, or powder is dispersed on the surface of the vine-like backing material applied on the mold, and conductive fibers are spread on the conductive material. The conductive material and the conductive am
This is a method for manufacturing an automobile mat, characterized in that a conductive layer is formed between the backing material and the pile by placing the pile in contact with the backing material and gelling the backing material by heating a mold in this state.

(Function of the Invention) Therefore, in the automobile mat according to claim 1, static electricity generated due to friction with the hem of shoes or pants when getting in and out of a car or while driving is dissipated between the pile and the backing material. It is absorbed into a conductive layer made of a conductive material formed on the conductive layer, and is discharged into the air through conductive fibers contained in a pile of base fabric provided in contact with the conductive layer.

(Example) Hereinafter, an automobile mat of the present invention and a method for manufacturing the same will be explained in detail according to an example shown in the drawings.

FIG. 1 is a perspective view showing an automobile mat according to the present invention;
FIG. 2 is an enlarged sectional view of the automobile mat of the present invention, and FIG. 3 is an enlarged sectional view of a portion of the second UA surrounded by the xY line.

As shown in FIGS. 1, 2, and 3, the automobile mat (11) of the present invention is made by driving a plurality of piles (17) into a base fabric (14) to create a predetermined volume. Then, tie the binding thread (1) to prevent the bar (17) from falling out.
8) and is fixed to the fabric (14), and is further lined with a backing material (12) made of synthetic resin such as thermoplastic resin.

In this automobile mat (11), the base fabric (14) is a nonwoven fabric, mesh, nylon woven fabric, etc. cut into a predetermined shape, and in this example, a nonwoven fabric was used. A plurality of piles (17) are driven into this base fabric (+4) h so as to penetrate to the back surface of the base fabric (14), and the piles (17) are inserted from the base end of the pile (17) or from the back surface of the base * (I4). It has jumped out. Pile driven in (17
) is made of nylon fiber (15) (17a
) and nylon fibers containing conductive fibers (16) (17b). These two types of piles (17a) and (17b) are implanted into the base fabric (14) in a uniform state over the entire surface of the base fabric (14). Here, the pile (17b) containing the tetraelectric fibers (16) is a feature of the present invention, and includes a plurality of nylon fibers (15), a plurality of carbon fibers, conductive ceramic fibers, Conductive fibers (16) such as metal fibers are added and twisted to a predetermined thickness. In this example, carbon Ia fibers produced from acrylonitrile polymer ILI fibers were used as the conductive [I(16)]. The pile (+7b) configured in this way is placed in contact with a conductive layer (13) that absorbs static electricity (described later), so that the static electricity is discharged into the air through the conductive fibers (16) of the pile (17b). It has become. Note that, as described in the examples, it is not necessary to inject two types of piles (17a) (17b) into the base fabric (I4), and it is also possible to inject only the pile (17b) containing the conductive fibers (16). good. In this case, the number of conductive fibers (16) increases, the conductivity is further increased, and the air discharge effect can be further enhanced. The pile (17) and the backing material (1
2), a conductive layer (13) is formed between the two.

As shown in FIGS. 1, 2, and 3, the conductive layer (13) is made of a conductive material (20) such as powdered, granular, or short fiber carbon material, conductive ceramics, or metal. The backing material (12) made of a synthetic resin such as a thermoplastic resin penetrates between these laminated conductive materials (20) and gels to form a conductive material (20).
) are interconnected layers. In this example, a short fibrous carbon material manufactured by Acrylonitrile Togai Fiber was used as the conductive material (2[]).

The conductive layer (13) configured in this way is connected to the pile (1).
7) and the lining material (12) to absorb static electricity generated by friction with the hem of shoes or pants when getting in and out of a car or driving. (13) Laminated conductive materials (
The base end of the pile (17) protruding from the three sides of the base fabric (+, 4) enters between the base fabric (+, 4), and in this state, the backing material (12)
), the conductive materials (20) are interconnected to form the conductive layer (13). For this reason, the pile (
The conductive fiber (16) contained in the conductive layer (13)
) in contact with the conductive material (20) forming the conductive layer (
13) The static electricity absorbed by the conductive edge m(16)
It is designed to be discharged into the air through the air.

Next, a method for manufacturing an automobile mat according to claim 4 will be explained with reference to the drawings.

4 to 7 show the manufacturing process of the automobile mat of the present invention, FIG. 4 is an enlarged sectional view showing the state in which the sol-like backing material is applied on the mold, and FIG. Fig. 6 is an enlarged cross-sectional view showing a state where the conductive material is spread on the backing material, Figure 6 is an enlarged cross-sectional view showing the state where the base fabric is placed on the conductive layer, and Fig. 7 is the backing material coated with gel. A conductive layer is formed between the pile and the lining material! FIG. 6 is an enlarged cross-sectional view showing FIG.

First, as shown in FIG. 4 and FIG.
:Apply to. Next, the mold (19) is heated directly from the bottom to semi-gelatinate the backing material (12). Next, a conductive material (2G) such as powdered, granular or short fiber carbon material, conductive ceramics, metal, etc. is placed on the semi-gelled backing material (12). Scatter and layer them to such an extent that they are in contact with each other. Next, as shown in Figures 6 and 7, conductive M&Ms (1B> such as carbon fibers, conductive ceramic fibers, metal fibers, etc.) are added to multiple nylon fibers (15) and bundled. , a pile (17b) made by twisting these together to have a predetermined thickness, and a pile (17a) made by twisting a plurality of nylon fibers 11k (Is) to a predetermined thickness to the base fabric (14). The fabric (I4) is placed on the base end of the pile (17) or between the conductive material (20) and connected to the conductive fiber (16). The conductive material (20) is brought into contact with the conductive material (20).At this time, the sol-like backing material (12) penetrates between the conductive materials (20).In this state, the mold (19) is directly heated from the back side. By cooling the backing material (12), the backing material (12) is gelled into a rubbery state, and a conductive layer (13) is formed between the pile (17) and the backing material (12).
1) is manufactured.

(Effects of the Invention) As detailed above, in the car mat according to claim 1, static electricity generated due to friction with the hem of shoes or pants when getting in and out of a car or while driving is absorbed by the pile. It is absorbed by the conductive layer made of conductive material formed between the backing material and discharged into the air through the conductive fibers contained in the pile of the base fabric provided in contact with the conductive layer. ing. Therefore, it is possible to prevent static electricity from being generated and to prevent dirt and dust from adhering to the automobile mat.

Further, according to the automobile mat according to claim 2, the conductivity is increased, and static electricity generated by friction with the hem of shoes or pants when getting in and out of a car or while driving can be more efficiently discharged into the air. .

Further, according to the automobile mat of claim 3, the absorption rate and conductivity of static electricity are increased, and static electricity can be more efficiently discharged into the air.

Further, in the method for manufacturing an automobile mat according to claim 4, it is sufficient to simply sprinkle the conductive material during the packing process of the automobile mat, and the electrostatic generation prevention device can be provided in an extremely simple manner. We can also manufacture mats for motor vehicles.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the automatic Ichikawa mat of the present invention, Figure 2 is a perspective view showing the automatic Ichikawa mat of the present invention;
The figure is an enlarged sectional view of the automobile mat of the present invention, FIG. 3 is an enlarged sectional view of the portion surrounded by the xY line in FIG. 2, and FIGS. 4 to 7 are manufacturing steps of the automobile mat of the present invention. shows,
ff Figure 14 is an enlarged cross-sectional view showing the state in which the sol-like backing material is applied on the mold, Figure 5 is an enlarged cross-sectional view showing the state in which the conductive material is sprinkled on the sol-like backing material, and Figure 6 is FIG. 7 is an enlarged cross-sectional view showing a state in which the base fabric implanted on the conductive layer is placed; FIG. 7 is an enlarged cross-sectional view showing a state in which the backing material is gelled to form a conductive layer between the pile and the backing material. , 8th
The figure is a perspective view showing a conventional automobile mat. Explanation of symbols 11...Car mat, 12...Backing material, 13
...Conductive layer, 15...Conductive fiber, 17...Pile, 20...Conductive material, Patent applicant Co., Ltd.
Yamato

Claims (4)

[Claims] (1) A pile containing conductive fibers that is driven into the back surface of the base fabric, and a conductive material that is formed between the pile and the lining material and is in contact with the conductive fibers. An automobile mat characterized by comprising a conductive layer consisting of: (2) Claim 1, characterized in that the conductive fiber is carbon fiber manufactured from acrylonitrile polymer fiber.
Automotive mats listed. (3) The automobile mat according to claim 1, wherein the conductive layer made of a conductive material is a layer formed by laminating short fiber-like carbon materials manufactured from acrylonitrile polymer fibers. (4) A conductive material in the form of fibers, granules, or powder is sprinkled on the surface of the sol-like backing material applied on the mold, and a pile containing conductive fibers is placed on the back side of the conductive material. The conductive material and the conductive fibers are brought into contact by placing a base fabric that has been implanted so as to penetrate through the conductive material,
A method for manufacturing an automobile mat, characterized in that by heating the mold in this state, the backing material is gelled to form a conductive layer between the backing material and the pile.