JP2001046187A - Seat cover material and seat manufactured using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat cover material, particularly a seat cover material for a motorcycle, which has a seam pattern to provide a luxury feel, and which prevents rainwater from seeping through,. SOLUTION: This seat cover material 1 comprises a fiber base layer and a synthetic resin layer, and a linear seam pattern 4 consisting of projecting and recessed parts is provided on the surface of the synthetic resin layer. The cover material is preferably creped in different patterns on both sides across the linear seam pattern 4 consisting of the projecting and recessed parts. The layer of the part of the material formed with the linear seam pattern is preferably raised so as to be 0.1 to 0.5 mm thicker than the layer of the other part of the material. The linear seam pattern is preferably positioned at the boundary between the seat face part 2 and the side face part 3 of the seat cover material or on the seat-shaped ridge line of the seat face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat, and more particularly, to a seat of a motorcycle, a buggy, a construction work vehicle, and a watercraft. More specifically, the present invention relates to a skin material for producing a seat by covering a cushion material such as a foamed resin.

[0002]

2. Description of the Related Art For a long time, leather has been used as a skin material for sofas and seats for vehicles. When leather is used as the skin material, the leather is usually cut to create a portion that forms the seat surface of the seat and a portion that forms the side surface (side) of the seat, and then connects these portions by sewing. It is packed with cushioning material, provided with a bottom, and shaped and manufactured. As a substitute for leather, leather has been developed in which a synthetic resin layer such as a soft polyvinyl chloride layer, an acrylic resin layer, or a polyolefin elastomer layer is laminated on the surface of a fibrous base material such as a woven fabric, a knitted fabric, or a nonwoven fabric. It is used for the seat skin material.

[0003] By the way, in the case of a motorcycle or other motorcycle seat, in the case of a skin material made of leather, the cushion material is covered by pulling one piece of leather cut into a predetermined shape by hand, that is, by sticking molding. After that, fix the end of the leather to the lower surface of the bottom plate, or form one piece of leather cut into a predetermined shape into a seat shape by vacuum forming, and then cover the cushion material with the end. Part is fixed to the lower surface of the bottom plate, or one piece of leather cut into a predetermined shape is placed in a mold by vacuum molding, foamable resin is injected into this, and then the foamable resin is foamed. It is manufactured by a method such as molding integrally with the skin material.

[0004] The above-mentioned production method is simple and efficient, but lacks the seams formed when using leather as a raw material, so that the quality of the product is poor. Therefore, in order to give a sense of quality, the same manufacturing method is used even when leather is used as the material when leather is used as the material. That is, the leather is first cut to form a portion forming the seat surface of the seat and a portion forming the side surface of the seat, and then these are joined by sewing to create a skin material in the shape of the seat. Then, a cushion material such as a foamed resin molded in the shape of the seat is placed on the bottom plate of the seat, and the whole is covered with the above-described seat-shaped skin material from above, and the lower end of the skin material is bottomed. It is manufactured by a method of fixing to the lower surface of the plate.

[0005] Seats having a seam at the boundary between the seat surface and the side surface manufactured as described above are popular because of their high-class feeling. For this reason, in particular, a high-end motorcycle is often used with a skin material provided with stitches by joining leather by sewing. As described above, seams are often provided by sewing from the viewpoint of design, even though they are unnecessary in terms of manufacturing and shape. However, in the case of seats of vehicles that are often used outdoors, such as motorcycles and tractors, rainwater seeps into the cushioning material from the seams of the leather joints, so the cushioning material is used when sitting after the rain has cleared and sunny. There is a problem in terms of function because the water that seeps into the cloth may seep out and wet the clothes. In addition, the seat is finished in a favorite design or luxury using two or more kinds of leathers having different surface conditions, for example, a grain pattern, a gloss, and a color. The above-mentioned problems arise because the seams are formed. The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the problem caused by the seam and to provide a seat covering material excellent in design.

[0006]

That is, the present invention relates to a seat covering material comprising a fiber base material layer and a synthetic resin layer,
A seat covering material characterized by providing a linear seam pattern composed of irregularities on the surface of the synthetic resin layer. In addition, the present invention, bordered by a linear seam pattern composed of the above irregularities,
This is a seat covering material in which different grain patterns are provided on both sides thereof. It is preferable that the thickness of the linear stitch pattern portion is 0.1 to 0.5 mm thicker than the thickness of the other portions. Further, the present invention is a seat wherein the linear seam pattern of the above-mentioned seat covering material is arranged at a boundary between a seat surface and a side surface of the seat. The seat according to claim 1, wherein the linear seam pattern of the seat covering material is arranged on a ridge portion of the seat on the seat surface.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The skin material of the present invention comprises a fiber base layer and a synthetic resin layer. The fibrous base material layer is a woven fabric, a knitted fabric, or a non-woven fabric. The knitted fabric is particularly preferable because it has elasticity, which affects the formability of a seam or a grain pattern or the elasticity of the skin material during use. Smooth knitting, sheet knitting, and double sheet knitting are preferred as knitting. A knitted fabric having a pile on one side may be used from the viewpoint of feeling and cushioning. In this case, a synthetic resin layer is provided on a surface where no pile exists.

The fibers used as the material of the fiber base layer are natural fibers such as cotton and hemp; regenerated fibers such as rayon; semi-synthetic fibers such as acetate; polyamide fibers such as nylon 6 fibers; polyester fibers such as polyethylene terephthalate fibers; Acrylic fibers such as polyacrylonitrile fibers, polyolefin fibers such as polypropylene fibers, and synthetic fibers such as vinylon are used. The fiber base material may be made of the above-mentioned long fibers or short fibers, or may be one obtained by blending one kind or two or more kinds of fibers and mixing and knitting. Particularly, crimped yarn such as wooly nylon is preferable. Since the skin material using the crimped yarn has a low modulus and a high elasticity, it is excellent in workability at the time of stretch forming performed by pulling by hand or at the time of vacuum forming.

In the present invention, the synthetic resin layer is made of a polyvinyl chloride resin, a polyolefin resin, an acrylic resin, or the like. If necessary, various additives such as a plasticizer, a stabilizer, an antioxidant, an ultraviolet absorber, a lubricant, an antistatic agent, a pigment, and an inorganic filler may be added to these synthetic resin layers. To laminate the synthetic resin layer on the fiber base layer, for example,
A synthetic resin is formed into a sheet, and a fiber base layer is laminated on the synthetic resin sheet. Extrusion molding or calender molding may be used to mold the synthetic resin into a sheet. In the laminating process, the synthetic resin may be extruded or calendered and sheeted and directly heat-laminated to the fiber base material layer, or a urethane-based adhesive or modified ethylene-vinyl acetate copolymer may be applied to the surface of the fiber base material. After applying the combined aqueous emulsion type adhesive, heat lamination may be performed. In this way, a seat covering material comprising the fiber base material layer and the synthetic resin layer is obtained.

The skin material may have a surface treatment layer such as a urethane paint layer or a silicone urethane paint layer on the surface of the synthetic resin layer. These surface treatment layers are provided by applying the above paint. The urethane-based paint layer and the silicone urethane paint layer may be either a one-pack type or a two-pack type, but the two-pack type using a polyol having a hydroxyl group as a main component and an organic polyisocyanate as a curing agent has a gasoline resistance. Is preferred. Apply the two-part mixed solvent solution to the surface of the polyolefin elastomer layer,
Dry to form a paint layer. Antistatic agents, antioxidants, pigments, and the like may be added to these paint layers as needed.

[0011] In the present invention, a linear seam pattern or embossed pattern composed of irregularities is formed on the surface of the synthetic resin layer of the seat covering material composed of the fiber base material layer and the synthetic resin layer. FIG.
FIG. 1 shows an example of a seating material for a seat according to the present invention, which shows an example in which a skin material is cut from one piece of rectangular leather. Reference numeral 1 denotes a skin material of the present invention, which is used as a skin material for a driver's seat of a motorcycle. Reference numeral 2 denotes a portion which becomes a seat surface of a driver's seat of the motorcycle. In this example, the portion 2 is provided with a small embossed pattern having a small unevenness and is matted. Reference numeral 3 denotes a portion serving as a side surface (side) of the driver's seat of the two-wheeled vehicle. In this example, a large grain pattern is applied and the surface is glossy. Reference numeral 4 denotes a stitch pattern portion, which is linearly continuous. In this example, the stitch pattern portion is a single stitch stitch pattern having a seam pattern portion 5 and a thread pattern portion 6.

FIG. 2 is an enlarged perspective view of a part of the stitch portion of FIG. Reference numeral 7 denotes a synthetic resin layer of leather, and reference numeral 8 denotes a fiber base layer of leather. Reference numeral 4 denotes a linear seam pattern portion provided on the surface of the synthetic resin layer 7 of the leather, and the seam pattern portion 4 includes a seam pattern portion 5 and a thread pattern portion 6. In the linear seam pattern portion 4, the synthetic resin layer 7 is thicker than the seat surface portion 2 and the side surface portion 3. When the seam pattern portion 4 is raised in this way, the seam pattern portion 4 becomes very similar to the actual seam. The degree of the swelling is preferably about 0.1 to 0.5 mm thicker than the seat surface 2 and the side surface 3.

In order to manufacture a motorcycle seat using the above-mentioned skin material 1 shown in FIG. 1, for example, first, this skin material 1 is vacuum-formed into a cushion material for the seat as shown in a perspective view of FIG. Form into the corresponding three-dimensional shape. Here, 4 is a seam pattern portion. Reference numeral 2 denotes a portion to be a seat surface of the seat. In this example, a small embossed pattern is applied and matted. Numeral 3 is a portion serving as a side surface of the seat. In this example, a large grain pattern is applied and the surface is glossy. When three-dimensionally vacuum-formed in this manner, the line of the seam pattern 4 between the seat surface portion 2 having the small grain pattern and matting and the shiny side surface portion 3 having the large grain pattern and the gloss is just the seat. It is preferable to adjust so as to be a boundary portion between the surface and the side surface.

A cushion material is packed in a foam material three-dimensionally formed by vacuum molding by integral foam molding or the like, a bottom plate is further placed, an end portion of the skin material is bent, and fixed to a bottom outside of the bottom plate with a nail or the like, and a seat is provided. To manufacture. FIG. 4 is a cross-sectional view of the motorcycle seat thus manufactured. Reference numeral 10 denotes a cushion material, 11 denotes a bottom plate, and 12 denotes a nail for fixing the end 9 of the skin material to the bottom plate 11. A stitch pattern 4 exists at the boundary between the seat surface 2 and the side surface 3. Further, the stitch pattern 4 may be present at the ridge portion of the seat shape of the seat surface portion (a in FIGS. 3 and 4 is the ridge portion). Further, the linear stitch pattern is not limited to the position shown in the above example. It may be provided at any position as a design.

Next, a method of manufacturing the skin material shown in FIG. 1 will be described for a skin material of a motorcycle seat. This skin material is manufactured by forming a seam pattern and, if necessary, a grain pattern on the synthetic resin layer surface of the leather cut into a size necessary for making a motorcycle seat. In order to form a seam pattern or a grain pattern by embossing, a stamping die is necessary. The stamping die is formed, for example, as follows.

First, a leather made of a fiber base material layer and a synthetic resin layer is cut into two pieces, a portion forming a seat surface of a seat and a portion forming a side surface of the seat. The two leathers are joined by single stitch sewing. FIG. 5 is a partially enlarged perspective view of a portion connected by single stitch sewing. 2
2 has a fine grain pattern at a portion forming the seat surface of the seat,
It is matte leather. Reference numeral 23 denotes a part forming the side surface of the seat, which is made of a large grain pattern and is glossy leather. The two leathers are actually joined by single stitch sewing 24. That is, the two leathers of the leather 22 of the seat portion and the leather 23 of the side portion to be joined are aligned and overlapped. First, the inside is sewn (thread 27), and then the leather is folded at the position of the thread 27. The folded portion 25 is sewn (thread 26) and connected. The joining of the leather 22 and the leather 23 is carried out by sewing as described above, but when the sewed skin material is formed into a three-dimensional shape as shown in FIG. In this case, it is preferable to adjust the stitch line so that it is exactly at the boundary between the seat surface and the side surface. Also, when the stitch pattern is placed at an arbitrary position as a character line for design reasons, the stitch pattern is adjusted so as to come to a predetermined position when the leather is three-dimensionally formed into a seat shape.

A stamping die is prepared using the skin material actually sewn as described above as a master model. That is, the above-mentioned skin material is spread on a flat plate having an outer frame of an appropriate height, a silicone RTV rubber (room temperature vulcanized rubber) for molding is injected from above, and then the rubber is cured. The cured rubber is peeled from the skin material. Thus, a reversing die made of silicone rubber is obtained. In this press die, the seam pattern portion and the grain pattern are faithfully and negatively copied.

The following method is used to make the skin material of the present invention using the above-mentioned pressing die. First, a leather made of a fiber base material layer and a synthetic resin layer is cut into a predetermined size required for a seat. The above-mentioned die made of silicone rubber is placed on the synthetic resin layer surface of the leather, and heated and pressed. As a result, the depressions and projections of the press die are transferred to the synthetic resin layer of the leather, and the skin material for a seat of the present invention as shown in FIG. 1 is obtained. The skin material of the present invention may be formed by inverting the above-mentioned reversing mold again and inverting it to a silicone embossing roll to form a roll-shaped pressing mold, and passing the embossing roll while heating the leather. At this time, heating may be performed using high-frequency heating. Also, a metal stamping die is made by electroforming,
The skin material of the present invention may be manufactured by pressurizing and heating using this metal pressing die. Also, the seam pattern is shown as a single stitch in the above example, but may be another seam pattern for joining.

Embodiment 1 FIG. 100 parts by weight of polyvinyl chloride,
100 parts by weight of 2-ethylhexyl phthalate, Ba-Z
A resin composition containing 2 parts by weight of an n-type stabilizer and 2 parts by weight of a pigment is formed into a sheet having a thickness of 0.9 mm by calendering, and a wooly nylon (plaid) is formed on the lower surface of the polyvinyl chloride sheet. Laminated. Then
A surface treatment for providing a urethane-based paint layer on the surface of the polyvinyl chloride layer by a conventional method is performed. Leather, which is a material of the skin material of the present invention, was produced.

The leather obtained above was cut slightly larger than the seat of the motorcycle. A temporary stitch pattern line was presumedly entered in this leather. A cushion material was placed on a bottom plate of a motorcycle seat, and the entirety was covered with the above-mentioned leather from the cushion side and stretch-molded to prepare a motorcycle seat. Then, it is measured how much the line of the temporary stitch pattern when the seat is set is deviated from a predetermined position, that is, the boundary line between the seat surface and the side surface of the actual seat, so that both lines match. The position of the line of the stitch pattern to be applied to the leather surface was determined.

Further, a fine grain pattern was embossed on the surface of the polyvinyl chloride layer of the above-obtained leather to produce a dull leather to be a seat surface portion of the seat. Also, a large grain pattern was embossed on the surface of the polyvinyl chloride layer of the leather obtained above to produce a glossy leather serving as a side portion of the seat. The two leathers were joined by a single stitch sewing at a position corresponding to the line of the determined seam pattern. The skin material thus prepared was placed on a flat plate so that the surface of the polyvinyl chloride layer faced up, silicone RTV rubber for casting was injected and cured to form a reversing die. This push-type seam pattern (7 m from the thread pattern
The portion between m and the side alligator 3 mm) was 0.3 mm deeper than the seat portion and 0.35 mm deeper than the side portion.

The inverted mold was applied to the surface of the polyvinyl chloride layer of the leather obtained above, and heated and pressed to transfer the irregularities of the mold to the surface of the polyvinyl chloride layer. A skin material as shown in FIG. 1 of the present invention was obtained. The seam pattern portion of this skin material has a thickness of 1.3 mm and is 0.30 m from the seat surface portion.
m, which was 0.35 mm higher than the side surface. This skin material was put on a cushion material placed on the bottom plate of a motorcycle seat, stretch-formed, and the end was fixed to the bottom of the bottom plate with staples, thereby producing a motorcycle seat. The seam pattern line matches the boundary line between the seat surface and the side of the seat, and a high-class seat that is indistinguishable from an actually sewn seat is obtained.

Example 2 The same leather as that obtained in Example 1 was cut into a slightly larger seat than a motorcycle seat. A line of a stitch pattern with a provisional stitch pitch was presumedly entered into this leather, and vacuum-formed to form a three-dimensional shape of a seat. When this vacuum forming,
Measure the degree of deviation of the line of the temporary stitch pattern from the predetermined position, that is, the boundary line between the actual seat surface and the side surface, and further correct so that both lines coincide with each other. The position of the line of the stitch pattern to be applied was determined. In addition, the stitch pitch was measured, and the deviation of the stitch pitch due to partial elongation was confirmed.

A fine grained pattern was embossed on the surface of the polyvinyl chloride layer of the leather to produce a dull leather which would be the seat surface of the seat. A large embossed pattern was embossed on the surface of the leather's polyvinyl chloride layer to create a glossy leather for the side of the seat. The two leathers were joined by single-stitch stitching while adjusting the stitch pitch based on the blur at a position that matches the line of the stitch pattern determined by vacuum forming. The skin material created in this way is placed in a flat plate shape with the polyvinyl chloride layer face up,
Injection silicone RTV rubber was injected and cured to form a reversing press. The seam pattern portion (the portion between 7 mm of the seat surface and 3 mm of the side surface from the thread pattern portion) of this push mold was 0.3 mm deeper than the seat surface portion and 0.35 mm deeper than the side surface portion. . A silicone embossing roll was prepared by using the pressing die, which was further inverted by a conventional method, as a matrix. At this time, an alignment mark during molding was also attached to the roll.

Using the embossing roll, the leather obtained in Example 1 was embossed to produce a skin material as shown in FIG. The seam pattern portion had a thickness of 1.3 mm, and was raised 0.30 mm from the seat surface portion and 0.35 mm from the side surface portion. This skin material was cut into a predetermined size, vacuum formed, and three-dimensionally formed into a shape of a motorcycle seat. A seat-shaped cushioning material is placed on the bottom plate of the motorcycle seat, and the above-mentioned vacuum-molded skin material is placed thereon,
The lower end was stapled to the bottom of the bottom plate to create a motorcycle seat. The line of the seam pattern coincides with the line of the border between the seat surface and the side of the seat, so that a high-class seat that cannot be distinguished from a seat created by sewing can be efficiently manufactured.

[0026]

Since the seat covering material of the present invention has a linear seam pattern formed by unevenness, the seat manufactured therefrom, especially a motorcycle seat, has a high-class appearance. Also, by making the embossed pattern and gloss of the ground on both sides of this seam pattern different, two or more leathers with different embossed patterns and gloss were connected by sewing, even though it was a single piece of leather. It looks like, and the sense of luxury increases. In the linear seam pattern of the present invention, the thickness of the layer of the seam pattern portion is made thicker than the thickness of the layer of the other portions, that is, the seam pattern portion is raised, so that the actual seam Becomes very similar and durable. Moreover, the seam pattern is a pattern with irregularities,
Unlike seams that are actually formed by sewing, rainwater does not enter the cushion through the seam pattern.
Therefore, when sitting after raining or clearing, the water seeping into the cushioning material does not seep out and wet the clothes.

[Brief description of the drawings]

FIG. 1 is a plan view of a motorcycle seat material according to the present invention;

FIG. 2 is an enlarged perspective view of a seam pattern portion of FIG. 1;

FIG. 3 is a perspective view of a skin material for a motorcycle seat of the present invention after vacuum forming.

FIG. 4 is a cross-sectional view of a motorcycle seat manufactured using the skin material of the present invention.

FIG. 5 is an enlarged perspective view of a seam portion of a conventional motorcycle seat material;

[Explanation of symbols]

1,21 Skin material, 2,22 Leather for seat, 3,2
3 Side leather, 4 stitch pattern, 5,25 seam pattern, 6,26 thread pattern, 7 synthetic resin layer, 8
Fiber base material layer, 10 Cushion material, 11 Bottom plate, 24 single stitched seams, a Seat-shaped ridgeline of the seat surface

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kenichi Hasegawa 3-27, Sakaemachi, Asaka-shi, Saitama Prefecture TS Tech Co., Ltd. (72) Inventor Shinya Okada 3-27-12 Hongo, Bunkyo-ku, Tokyo Okamoto Co., Ltd.

Claims (6)

[Claims] 1. A seat covering material comprising a fiber base material layer and a synthetic resin layer, wherein a linear seam pattern composed of irregularities is provided on a surface of the synthetic resin layer. Wood. 2. The seat covering material according to claim 1, wherein different grain patterns are provided on both sides of the linear seam pattern formed by the unevenness. 3. The seat covering material according to claim 1, wherein the thickness of the linear stitch pattern portion is 0.1 to 0.5 mm thicker than the thickness of the other portions. 4. A seat, wherein the linear seam pattern of the seat covering material according to any one of claims 1 to 3 is arranged at a boundary between a seat surface and a side surface of the seat. 5. A seat, wherein the linear stitch pattern of the seat covering material according to any one of claims 1 to 3 is arranged at a ridge portion of the seat shape of the seat surface. 6. The seat according to claim 4, wherein the seat is a motorcycle seat.
The listed seat.