JP2013203169A - Seat cover for vehicle and method of attaching seat cover for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat cover for a vehicle capable of easily ensuring adhesion to a concave portion without giving damage to a seat for a vehicle as a base.SOLUTION: A seat cover for a vehicle includes: a thermoplastic resin layer provided on a side of a seat for a vehicle when the seat cover for a vehicle is put on the seat for a vehicle and melted by being heated; and a rear fabric layer provided between the seat for a vehicle and the thermoplastic resin layer and having a mesh structure.

Description

  The present invention relates to a vehicle seat cover attached to a vehicle seat.

  Conventionally, for example, a technique disclosed in Patent Document 1 is known as a technique related to a vehicle seat cover. In this publication, when a concave accent is formed on the seat back, the seat cover is brought into close contact with the concave shape using a wire or a pull-in guide member.

JP 2010-233591 A

  Here, in recent years, there has been a demand to leave the seat cover set in the vehicle from the beginning as it is, and then put on a new seat cover. This is intended to facilitate washing by removing the seat cover even when dirt or the like is attached, or to improve the merchantability of the car. In such a case, even if a vehicular seat having a concave accent or the like is simply covered with a bag-like seat cover, a gap is formed between the concave accent portion and the design is not preferable. Therefore, it is conceivable to use a technique such as making a close contact with a wire or the like as in Patent Document 1 or sewing a thread through a sheet. In this case, it is necessary to make a hole in the seat cover to be newly covered, and also make a hole in the vehicle seat as a base, which is troublesome and sometimes damages the core material of the seat. There was a problem that.

  An object of the present invention is to provide a vehicle seat cover that can easily ensure adhesion to a concave portion without damaging a vehicle seat serving as a base.

  In order to achieve the above object, in the vehicle seat cover of the present invention, the thermoplastic resin layer that is provided on the vehicle seat side when it is put on the vehicle seat and melts by heating, the vehicle seat, and the thermoplastic And a backing fabric layer having a mesh structure provided between the resin layer.

  Therefore, it is possible to adjust the melt amount when the thermoplastic resin layer is melted by the mesh structure, and the seat cover can be brought into close contact with the seat without damaging the vehicle seat. Moreover, it can be easily detached by ensuring removability.

1 is a perspective view of a vehicle seat to which a vehicle seat cover according to Embodiment 1 is applied. It is AA sectional drawing of the vehicle seat of Example 1. FIG. 1 is a schematic cross-sectional view illustrating a configuration of a vehicle seat cover according to a first embodiment. It is a schematic sectional drawing showing the state after mounting | wearing with the vehicle seat cover of Example 1, and applying an iron. It is a figure showing the structure of each Example and a comparative example, and its evaluation result.

[Example 1]
FIG. 1 is a perspective view of a vehicle seat to which the vehicle seat cover of the first embodiment is applied. The vehicle seat 2 according to the first embodiment is mounted on the vehicle seat 2 that has already been set at the time of vehicle shipment by covering the vehicle seat cover 1 according to the first embodiment from the top 2b of the seat 2. The vehicle seat 2 includes a side support portion 5a provided on the backrest 5 and a lumbar support portion 5b that receives the back of the occupant.

  FIG. 2 is an AA cross-sectional view of the vehicle seat of the first embodiment. As shown in FIG. 2, a concave backrest is formed by the side support portions 5a formed on both sides of the lumbar support portion 5b. If the vehicle seat cover 1 is only covered, the vehicle seat cover 1 is lifted from the skin 2b of the backrest, easily becomes wrinkled, and is displaced, which is not preferable in terms of appearance. Further, although not particularly marked, a concave seat cushion is formed by the seating surface and its side support portion, and the lifting of the vehicle seat cover 1 is also a problem. Therefore, in Example 1, the thermoplastic resin layer is formed on the back surface (the seat 2 side) of the vehicle seat cover 1. And it adheres with the skin 2b of the sheet | seat 2 by heat welding with an iron etc., and eliminates the clearance gap between the seat cover 1 for vehicles in a concave part.

  FIG. 3 is a schematic cross-sectional view illustrating the configuration of the vehicle seat cover according to the first embodiment. The vehicle seat cover 1 includes a skin layer 10 that is directly touched by an occupant, a urethane laminate layer 11 bonded to the back side of the skin layer 10, and a thermoplastic resin set on the back side of the urethane laminate layer 11. A sheet-like hot melt layer 12 that is a layer, a back fabric layer 13 that is disposed on the back side of the sheet-like hot melt layer 12 and is in contact with the skin 2b of the seat 2 on the innermost surface side of the vehicle seat cover 1; The four-layer structure. The urethane laminate layer 11 is for preventing leakage to the skin layer 10 side when the hot melt of the sheet-like hot melt layer 12 is melted. The backing fabric layer 13 has a structure for controlling an appropriate amount of molten hot melt to flow into the skin 2b of the sheet 2 when the hot melt of the sheet-like hot melt layer 12 is melted.

  FIG. 4 is a schematic cross-sectional view illustrating a state after the vehicle seat cover of Example 1 is mounted and heated and melted. As shown in FIG. 4, after the vehicle seat cover 1 is placed on the vehicle seat 2 and heated by the iron 6, the hot melt resin of the sheet-like hot melt layer 12 is melted and passes through the mesh of the backing fabric layer 13. The wedge-shaped hot melt 12a bites into the skin 2b of the sheet 2. Thereafter, when the iron 6 is released and cooled, the wedge-shaped hot melt 12a is maintained in a state of being fixed to the skin 2b.

  On the other hand, when the vehicle seat cover 1 is removed from the seat 2, it is heated again by the iron 6 to melt the hot melt resin to melt the wedge-shaped hot melt 12a, or it remains as it is without being melted again. The vehicle seat 1 is pulled away from the skin 2b by applying a force. After that, the vehicle seat cover 1 can be easily removed by simply removing it from the seat 2. Therefore, when the vehicle seat cover 1 is dirty, it can be easily selected. In addition, after washing, it can adhere | attach with respect to the sheet | seat 2 by heating with the iron 6 again.

  For the sheet-like hot melt layer 12 of Example 1, an olefin-based hot melt sheet (manufactured by Kurashiki Boseki Co., Ltd .; cranberry X1430) was used. In addition, a polyester mesh of 1000 μm (manufactured by Semitech Co., Ltd .; PET1000) was used for the back fabric layer 13. In this case, the heating temperature by the iron 6 was 100 ° C., the pressing pressure was 500 g, and the pressing time was 10 seconds. The skin 2 b was fixed to the core material 2 a of the sheet 2, and the vehicle seat cover 1 was covered thereon.

  Here, the heating method was heating with a commercially available iron, and the temperature was measured by measuring the surface temperature of the skin layer 10 with a non-contact thermometer. The pressure for pressure bonding was a method of placing a 500 g weight on a commercial iron. The crimping time was the time measured immediately after placing the weight on the commercial product iron. The seat coverage was determined by whether or not the tester actually felt it easy. The seat mounting strength and re-adhesion test were conducted by holding 2kgf or more according to JIS K6854-2. The seat cover re-peelability was evaluated by attaching a push-pull gauge to the end of the seat cover, pulling it up in the vertical direction and peeling it from the skin 2b, and 2 kgf to 5 kgf as good. The deterioration after washing was evaluated based on whether or not the adhesive strength was greatly reduced after washing. The sitting comfort was determined by testing the flexibility of the epidermis 2b when the tester actually tried to sit down, and whether or not he / she felt high flexibility.

  FIG. 5 is a diagram illustrating the configuration of each example and comparative example and the evaluation results thereof. In the case of Example 1, good results were obtained at any of the evaluation points of seat covering property, seat mounting strength, seat cover removability, re-adhesion property, and sitting comfort. Here, in explaining the conditions understood through this test, other examples and comparative examples will be explained.

In Example 2, a polyester mesh 500 μm having a mesh size different from that of Example 1 was used. Also in this case, good results were obtained at all evaluation points.
In Example 3, a polyester mesh of 3000 μm having a mesh size different from that of the polyester mesh of Example 1 was used. Also in this case, good results were obtained at all evaluation points.
In Example 4, instead of the polyester mesh of Example 1, a nylon mesh of 1000 μm (20GG-1000 manufactured by Semitech Co., Ltd.) was used. Also in this case, good results were obtained at all evaluation points.
In Example 5, the same vehicle seat cover 1 as in Example 1 was directly covered not on the skin 2b but on the core material 2a. Also in this case, good results were obtained at all evaluation points.

Next, in Comparative Example 1, 475 μm of polyester mesh having a mesh size different from that of Example 1 was used. In this case, the seat cover re-peelability, the re-adhesion property, and the sitting comfort when sitting were deteriorated. That is, it is considered that the number of meshes in the backing fabric layer 13 is too small and the amount of hot melt transmitted is reduced, resulting in insufficient adhesive strength.
In Comparative Example 2, a polyester mesh of 5000 μm having a mesh size different from that of Example 1 was used. In this case, deterioration was seen in seat covering property, seat mounting strength, and seat cover removability. That is, the number of meshes in the back fabric layer 13 was too coarse, and the friction when the seat was covered was great, making the operation difficult. In addition, the amount of hot melt permeation is large and re-peeling is difficult, which may damage the standard skin material.
In Comparative Example 3, a polypropylene mesh 1000 μm (PP18-1000 manufactured by Semitec Co., Ltd.) different from the polyester mesh of Example 1 was used. In this case, since the polypropylene back fabric layer was hard, the sitting comfort at the time of sitting deteriorated.
In Comparative Example 4, the polyester mesh of Example 2 was used, and an acrylic double-sided tape (manufactured by Nitto Denko; No. 512) was used instead of the olefin-based hot melt sheet. In this case, the adhesive of the double-sided tape could not pass through the backing fabric layer 13, and the adhesiveness to the seat was hardly seen. Therefore, it was inappropriate as a problem before evaluating seat cover removability, deterioration after washing, re-adhesion, and sitting comfort.
In the comparative example 5, it was set as the structure which does not provide the back fabric layer 13, but makes a hot-melt sheet contact the skin 2b directly. In this case, the adhesiveness between the skin 2b and the vehicle seat cover 1 was too strong and could not be removed again.

The contents understood from each of the above Examples and Comparative Examples are summarized below.
1) As is clear from Comparative Example 4, the adhesiveness cannot be secured with the double-sided tape, and therefore a hot melt sheet is preferably used.
2) The mesh roughness of the back fabric layer is preferably in the range of 500 to 1000 μm. If it is less than 500 μm, the permeation amount of the hot melt cannot be secured and the adhesiveness cannot be obtained. On the other hand, in the case of 5000 μm, the adhesive force is too strong because the frictional force is increased and the amount of permeation of the hot melt is too large, and re-peeling becomes difficult, so that appropriate peelability cannot be obtained. If the mesh roughness is defined in this range, excessive frictional force is not generated even when the vehicle seat cover 1 is put on the seat 2, and workability is good. In addition, considering the adhesiveness and releasability, any mesh type having suitable mesh roughness can be suitably used regardless of whether it is polyester, nylon or polypropylene. However, since the polypropylene material has hardness, the seating property is not preferable.
3) When the back fabric layer is not provided, the hot melt is completely adhered to the skin 2b of the sheet 2, and re-peelability cannot be obtained.
From the above, it is extremely useful to use a hot melt sheet and to give the backing fabric layer a mesh structure. And when controlling the amount of hot melt permeation by the mesh structure, it was understood that setting the mesh roughness in the range of 500 to 1000 μm is extremely useful.

  In the above examples and comparative examples, verification was made with an emphasis on adhesion, but it may be more firmly attached using metal fittings or wires while ensuring adhesion. Moreover, although the example attached with respect to the sheet | seat with a skin was shown, you may make it attach with respect to a core material even if there is no skin especially. Moreover, you may use not only the heating by an iron but heating means, such as a hot blow.

DESCRIPTION OF SYMBOLS 1 Vehicle seat cover 2 Vehicle seat 2a Core material 2b Skin 5 Backrest 5a Side support part 5b Lumber support part 6 Iron 10 Skin layer 11 Urethane laminate layer 12 Sheet-like hot melt layer 13 Back fabric layer

Claims (3)

A thermoplastic resin layer that is provided on the vehicle seat side when the vehicle seat is covered and melts by heating;
A backing fabric layer having a mesh structure provided between the vehicle seat and the thermoplastic resin layer;
A vehicle seat cover, comprising: The vehicle seat cover according to claim 1,
The vehicle seat cover according to claim 1, wherein the back fabric layer has a mesh roughness selected in a range of 500 µm to 3000 µm.   A thermoplastic resin layer provided on the vehicle seat side when covered with the vehicle seat and melted by heating; a backing fabric layer having a mesh structure provided between the vehicle seat and the thermoplastic resin layer; The vehicle seat cover is covered with the vehicle seat, the vehicle seat cover is heated, and the thermoplastic resin layer is melted to bond the vehicle seat and the vehicle seat cover. A method for attaching a vehicle seat cover.

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