JP2009292298A - Seat for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for a vehicle, reducing power consumption of a heater means, while maintaining heating performance. <P>SOLUTION: This seat 1 is provided with the heater means (planar heating body 5) between a seat pad 2 and a seat cover 3 for covering the seat pad 2. The seat cover 3 is provided with: a skin layer 3a made by using a filament 7 containing hornblende-cummingtonite porphyrite 9; and a foaming layer 3b provided on a back face side of the skin layer 3a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat that can reduce power consumption of a heater means while maintaining heating performance.

2. Description of the Related Art Conventional vehicle seats are generally known in which heater means are provided between a seat pad or a seat cover constituting a seat cushion or a seat back (see, for example, Patent Document 1). According to this vehicle seat, the comfort of the seated person can be improved by warming the seat with the heater means in winter or the like.
In addition, as another conventional vehicle seat, a backing material mainly composed of a resin material contains a horn blended cambingtonite meteorite having a far-infrared effect, and this backing material is used as the skin layer of the sheet. What is impregnated in the side is generally known (for example, refer patent document 2). According to this vehicle seat, a thermal effect is given to the seated person by far infrared rays radiated from the surface of the skin layer.

JP 2007-307190 A JP 2006-322117 A

However, in the vehicle seat of Patent Document 1, the seat cover is usually configured by laminating a skin layer and a foam layer for improving the feel of the skin layer. In this case, Since a heater means is arrange | positioned between a foaming layer and a seat pad, heat-transfer efficiency will fall with the heat insulation function of a foaming layer. Therefore, it is necessary to increase the heater output, power consumption increases, and a load is applied to the on-vehicle power supply.
Further, in the vehicle seat of Patent Document 2, since the far infrared radiation amount depends on the ambient temperature, the far infrared radiation amount is small when the surface temperature of the skin layer is low, such as in winter, and the thermal effect is sufficient. I can't get it.

  This invention is made | formed in view of the said present condition, and it aims at providing the vehicle seat which can reduce the power consumption of a heater means, maintaining heating performance.

The present invention is as follows.
1. A vehicle seat provided with a heater means between a seat pad and a seat cover covering the seat pad,
The vehicle seat according to claim 1, wherein the seat cover includes a skin layer made of a filament containing a horn-blend-cummingtonite, and a foam layer provided on the back side of the skin layer.
2. The fineness of the filament is 50 to 350 dtex. The vehicle seat as described.
3. The content of the horn blend cummingtonite is 3 to 10 parts by mass when the entire skin layer is 100 parts by mass. Or 2. The vehicle seat described in 1.
4). The average particle size of the horn blend cummingtonite is 0.5 to 1 μm. To 3. The vehicle seat according to any one of the above.

According to the vehicle seat of the present invention, the heater means is provided, and the skin layer constituting the seat cover is formed by using the filament containing the horn blend camingtonite nepheline, so that the skin means is heated by the heater means. Far infrared rays are emitted from the surface of the skin layer. Thus, by heating the skin layer to some extent by the heater means, the amount of far-infrared radiation from the surface of the skin layer increases, and a sufficient thermal effect can be obtained without increasing the heater output. As a result, the power consumption of the heater means can be reduced while maintaining the heating performance, the vehicle-mounted power source is not loaded, and the life is extended.
In addition, when the fineness of the filament is 50 to 350 dtex, a filament containing a predetermined amount of horn-blend Cummingtonite and a predetermined tensile strength can be spun and a relatively small filament As a skin material with a soft touch.
Moreover, when the content of the horn blend cummingtonite meteorite is 3 to 10 parts by mass when the entire skin layer is 100 parts by mass, a good thermal effect by far infrared rays can be obtained. At the same time, the amount of horn blend cummingtonite meteorite can be reduced.
Furthermore, when the average particle diameter of the horn blend cummingtonite is 0.5 to 1 μm, it is possible to obtain a good thermal effect by far-infrared rays, and the amount of the horn blend cummingtonite which is used. Can be suppressed.

1. Vehicle Seat Embodiment 1 The vehicle seat according to the present invention is a vehicle seat in which heater means is provided between a seat pad and a seat cover covering the seat pad,
The seat cover includes a skin layer made of a filament containing horn blended camingtonite meteorite and a foam layer provided on the back side of the skin layer.

  The structure, size, shape, material, etc. of the “seat pad” are not particularly limited. This seat pad is usually formed from a foamed resin. Examples of the material of the seat pad include urethane foam, PE foam, and PP foam formed from a thermosetting foam resin or a thermoplastic foam resin. For example, the seat pad can be hung on a frame member constituting a vehicle seat.

  The structure, size, shape, material and the like of the “seat cover” are not particularly limited. For example, the seat cover has a peripheral edge on both sides hooked to a wire provided on the frame member, and a part of the seat cover is drawn into a groove formed on the upper surface side of the seat pad. It can be hung by the hanging tool provided in the.

  The above-mentioned "Horn Blend Cumingtonite Meteorite" is the scientific name for colored cordierite natural stones produced on the Pacific coast of Taiwan Province. . This horn-blend Cummingtonite meteorite (hereinafter simply abbreviated as “HC stone”) was erupted by a deep-sea submarine volcano about 3,000 meters from the bottom several hundred billion years ago. It is said that the magma melted in is a porous natural ore rapidly cooled. HC stones have the property of absorbing far body infrared rays by absorbing the body temperature of the human body and sunlight and emitting far infrared rays, and in particular, dissipating a large amount of far infrared energy having a wavelength of 4 to 14 μm, which is best for humans.

  The “skin layer” is not particularly limited in its structure, size, shape, material, etc. as long as it uses filaments containing HC stone. Examples of the skin layer include one or a combination of two or more of a woven fabric made by weaving filaments containing HC stone, a knitted fabric made by knitting filaments containing HC stone, and the like. . For example, a part or the whole of the skin layer can be formed of the woven fabric and / or the knitted fabric. The woven fabric or knitted fabric may be formed only from filaments containing HC stone, or may be formed from filaments containing HC stone and other yarns (other filaments, etc.) not containing HC stone. it can. In addition, the woven fabric may have a single woven structure or a double or multiple woven structure. Also, a laminate (laminated) structure of a single woven fabric and a multi-woven fabric or a laminated structure of a multi-woven fabric and a multi-woven fabric may be used. Furthermore, the knitted fabric may have a single knitted structure or a double or multiple knitted structure. Further, a laminated (laminated) structure of a single knitted knitted fabric and a multiple knitted knitted fabric or a laminated structure of a multiple knitted knitted fabric and a multiple knitted knitted fabric may be used.

  The material of the filament (material as a base material for HC stone) may be, for example, a thermosetting resin, but is usually a thermoplastic resin. Examples of the thermoplastic resin include polyamide resin, polyester resin, vinyl resin (hydrophobized polyvinyl alcohol resin, etc., particularly vinylon), polyolefin resin (polyethylene resin, polypropylene resin, polybutadiene resin, etc.) and the like. These may use only 1 type and may use 2 or more types together. Among these, at least one of a polyester resin and a polyamide resin is preferable.

  If the said polyester resin is a polyester resin which consists of dicarboxylic acid and glycol, there will be no limitation in the kind in particular. Examples of the dicarboxylic acid include terephthalic acid, 2,6-naphthalenedicarboxylic acid, isophthalic acid, 1,4-cyclohexanedicarboxylic acid, and the like. Examples of the glycol include ethylene glycol, propylene glycol, tetramethylene glycol, 1,4-cyclohexanedimethanol and the like. Each of these dicarboxylic acids and glycols may be used alone or in combination of two or more. Specifically, examples of the polyester resin include polyethylene terephthalate (PET), polypropylene terephthalate, polybutylene terephthalate (PBT), and polyethylene naphthalate. These may use only 1 type and may use 2 or more types together.

  The polyamide resin is a resin having a polyamide structure, and examples thereof include aliphatic polyamide resins and aromatic polyamide resins. These may use only 1 type and may use 2 or more types together. Of these, aliphatic polyamide resins are preferred. Examples of the aliphatic polyamide resin include nylon 12, nylon 11, nylon 610, nylon 612, nylon 6, nylon 66, and the like. These may use only 1 type and may use 2 or more types together. The polyamide resin may be a copolymer with another monomer or a blend with another resin.

  Here, it is preferable that the fineness of the filament containing the HC stone is 50 to 350 dtex (particularly 80 to 170 dtex). Moreover, when the said whole skin layer is 100 mass parts, it is preferable that content of the said HC stone is 3-10 mass parts (especially 4-6 mass parts). Moreover, it is preferable that the average particle diameter of the said HC stone is 0.5-1 micrometer (especially 0.6-0.8 micrometer). Furthermore, the thickness of the said skin layer can be 0.5-5 mm (especially 1-2 mm), for example.

  As long as the “foamed layer” is provided on the back side of the skin layer, the structure, size, shape, material, etc. are not particularly limited. This foamed layer is usually formed from a foamed resin. Examples of the material of the foam layer include urethane foam, PE foam, and PP foam formed from a thermosetting foam resin or a thermoplastic foam resin. Furthermore, the thickness of this foam layer can be, for example, 1-20 mm (particularly 3-5 mm).

  As long as the “heater means” is provided between the seat pad and the seat cover, the structure, shape, installation location, etc. are not particularly limited. Examples of the heater means include a planar heating element formed by arranging heating lines in a pattern on a planar nonwoven fabric. Moreover, the heater means can be attached to the back side of the seat cover by stitching, for example. Furthermore, as an installation location of a heater means, the 1 type of 2 or more types of combinations among the seat back which comprises a vehicle seat, a seat cushion, a headrest, an armrest etc. can be mentioned, for example.

Hereinafter, the present invention will be specifically described with reference to the drawings.
(1) Vehicle Seat The vehicle seat 1 according to the present embodiment, as shown in FIG. 1, is a urethane resin seat pad 2 (also referred to as “slab urethane”) that spans a frame member (not shown). 2) and a seat cover 3 that covers the seat pad 2. The seat cover 3 has a peripheral edge on both sides hooked to a wire provided on the frame member, and a part of the seat cover 3 is drawn into a groove (not shown) formed in the seat pad 2 and is suspended. (Not shown).

  A plurality of planar heating elements 5 (illustrated as “heater means” according to the present invention) are provided between the seat pad 2 and the seat cover 3. Each of the planar heating elements 5 is provided corresponding to the center position of the seat cushion portion 1a and the waist position and the back position of the seat back portion 1b. As shown in FIG. 2, the planar heating element 5 is configured by arranging heating lines 5b in a pattern on a planar nonwoven fabric 5a. The planar heating element 5 is attached to the back side of the seat cover 3, that is, the back side of a foam layer to be described later by stitching.

As shown in FIG. 2, the seat cover 3 includes a skin layer 3a and a urethane resin foam layer 3b (also referred to as “slab urethane”) laminated on the back side of the skin layer 3a. ing. This skin layer 3a is made of polyester resin filament 7 containing horn blended cambingtonite meteorite 9 (hereinafter simply abbreviated as “HC stone 9”) having an average particle size of 0.7 μm (see FIG. 3). It is formed from a fabric made by weaving. The fineness of the filament 7 is 167 dtex. Moreover, when the whole skin layer 3a is 100 mass parts, content of the said HC stone 9 is 5 mass parts.
Note that the thickness of the skin layer 3a is set to about 2 mm, and the thickness of the foam layer 3b is set to about 5 mm. The filament 7 formed by kneading the HC stone 9 is obtained by putting a master batch of HC stone 9 and pellets of polyester resin into a melting machine and melt spinning.

(2) Operation of Vehicle Seat Next, the operation of the vehicle seat 1 having the above-described configuration will be described.
According to the vehicle seat 1 of the present embodiment, the skin layer 3a is warmed by the planar heating element 5, and far infrared rays are emitted from the surface of the skin layer 3a. Accordingly, the seat can be warmed by the heater means in winter and the comfort of the occupant can be improved, and a thermal effect can be given to the occupant by the far infrared rays radiated from the surface of the skin layer.

(3) Effects of the Example According to the vehicle seat 1 of the present example, the skin layer 3 a that includes the sheet heating element 5 and that constitutes the seat cover 3 is configured using the filament 7 that contains the HC stone 9. Therefore, when the skin layer 3a is warmed to some extent by the planar heating element 5, the far infrared radiation amount depends on the ambient temperature, so the far infrared radiation amount from the surface of the skin layer 3a increases, and the heater output is not increased. However, a sufficient thermal effect can be obtained. As a result, the power consumption of the sheet heating element 5 can be reduced while maintaining the heating performance, the vehicle-mounted power source is not loaded, and the life is extended.

  In this embodiment, since the fineness of the filament 7 constituting the skin layer 3a is 167 dtex, the filament 7 containing a predetermined amount of HC stone 9 and having a predetermined tensile strength can be melt-spun, and relatively As the small-diameter filament 7, the skin layer 3a can be made soft.

  Furthermore, in this example, the content of HC stone 9 when the entire skin layer 3a is 100 parts by mass is 5 parts by mass, and the average particle size of HC stone 9 is 0.7 μm. A good thermal effect can be obtained, and the amount of HC stone 9 used can be suppressed.

  In the present invention, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the said Example, although the skin layer 3a which consists of the textile fabric made by weaving the filament 7 containing HC stone 9 was illustrated, it is not limited to this, For example, the filament 7 containing HC stone 9 is knitted. The skin layer 3b is made of a knitted fabric made, or the skin layer 3a is made of a woven fabric made by weaving filaments 7 containing HC stone 9 and a knitted fabric made by knitting filaments 7 containing HC stone 9. Also good.

  Moreover, in the said Example, although the skin layer 3a (fabric) formed only from the filament 7 containing HC stone 9 was illustrated, it is not limited to this, For example, the filament 7 containing HC stone 9 and HC stone It is good also as the skin layer 3a formed from the other filament which does not contain.

  Moreover, in the said Example, although the whole skin layer 3a was formed from the filament 7 containing HC stone 9, it is not limited to this, For example, it respond | corresponds with the planar heating element 5 in the whole skin layer 3a. Only the part may be formed from the filament 7 containing the HC stone 9.

  Furthermore, in the said Example, although the form formed by providing the sheet | seat cushion part 1a and the seat back part 1b in the planar heating element 5 was illustrated, it is not limited to this, For example, it replaces with or in addition to these, The sheet heating element 5 may be provided in the headrest part constituting the vehicle seat 1, or the sheet heating element 5 may be provided in the armrest part constituting the vehicle seat 1.

  Widely used as a vehicle seat having a heating function.

It is the whole vehicle seat perspective view concerning an example. It is a principal part longitudinal cross-sectional view of the said vehicle seat. It is a perspective view of the filament containing HC stone.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1; Vehicle seat, 2; Seat pad, 3; Seat cover, 3a; Skin layer, 3b; Foam layer, 5: Planar heating element, 7; Filament, 9;

Claims (4)

A vehicle seat provided with a heater means between a seat pad and a seat cover covering the seat pad,
The vehicle seat according to claim 1, wherein the seat cover includes a skin layer made of a filament containing a horn-blend-cummingtonite, and a foam layer provided on the back side of the skin layer.   The vehicle seat according to claim 1, wherein the filament has a fineness of 50 to 350 dtex.   3. The vehicle seat according to claim 1, wherein when the entire skin layer is 100 parts by mass, the content of the horn blend cumingtonite nepheline is 3 to 10 parts by mass.   The vehicle seat according to any one of claims 1 to 3, wherein an average particle diameter of the horn blended cumingtonite olivine is 0.5 to 1 µm.

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