JP4888104B2 - Vehicle seat cover structure - Google Patents
Vehicle seat cover structure Download PDFInfo
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- JP4888104B2 JP4888104B2 JP2006341448A JP2006341448A JP4888104B2 JP 4888104 B2 JP4888104 B2 JP 4888104B2 JP 2006341448 A JP2006341448 A JP 2006341448A JP 2006341448 A JP2006341448 A JP 2006341448A JP 4888104 B2 JP4888104 B2 JP 4888104B2
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Description
本発明は、長時間の使用に供してもシワの発生を極力少なくすることができる車両用シートカバー構造に関するものである。 The present invention relates to a vehicle seat cover structure that can reduce wrinkles as much as possible even when used for a long time.
従来から、自動車等の車両用シートカバー構造としては、例えば特許文献１に示されるように、表面側から表皮層、ウレタンラミネート層、裏基布層を順次積層した構造のシートカバーが広く一般に知られており、これをウレタンパッド層の表面を覆うように被せるのが普通である。
しかしながら、長時間にわたって連続乗車していると、本来シワがなく平らな状態である天板部（図３を参照）が、図２に示すように、着座面である天板部にシワが発生して見栄えが悪化するという問題点があった。この現象は、本発明者が解析したところ、着座によるウレタンパッドの曲率長さが大きく変化したり、走行時の振動で乗員が上下動や横ずれして座面部に繰り返しストレスが加わるなどして、裏基布層とウレタンパッド層の位置が相対的なずれを生じるとともに、着座をとめて座面部に対するストレスをなくしても、接触状態にある裏基布層とウレタンパッド層との間の摩擦力が大きいためにその接触面のシートカバー滑りが規制され、その結果、シートカバーが初期形状に戻らず、撓みを生じてシワの発生に至るものと判明した。 However, when riding continuously for a long time, the top plate portion (see FIG. 3) that is essentially flat without wrinkles (see FIG. 3) is wrinkled on the top plate portion that is the seating surface as shown in FIG. Then, there was a problem that the appearance deteriorated. This phenomenon was analyzed by the present inventor, and the curvature length of the urethane pad due to the seating changed greatly, or the occupant moved up and down or shifted laterally due to vibration during running, and repeated stress was applied to the seat surface part, etc. Friction force between the back base fabric layer and the urethane pad layer in contact with each other even if the position of the back base fabric layer and the urethane pad layer is displaced relative to each other and no stress is applied to the seating surface by sitting down. As a result, it was found that the sliding of the contact surface of the contact surface was restricted, and as a result, the seat cover did not return to its initial shape, causing bending and wrinkling.
即ち、図４に示すように、撓みを生じて形成されたウレタンパッド層５とシートカバー１の両端部には、シートカバー１の相対的なずれを元に戻そうとする力Ｆが作用する。この時、シートカバー１の裏基布層とウレタンパッド層との摩擦力ｆが小さければシートカバー１の伸びが元へ戻って両者間の隙間が形成されることはないが、シートカバー１のずれを元に戻そうとする力よりも大きいと、シートカバー１は図４の状態で保持されることとなり撓みが生じて隙間（シワ）ができることとなる。このことは、シワが生じたシートのカバー表面を数回叩くことにより、シワが解消される現象があることを確認したことから、シートカバー自体が塑性変形し、シワが発生しているのではないことがわかる。つまり、シートカバーとウレタンパッド層の接触部を開放し、両者間の摩擦力を解消することでシートカバーが初期形状に戻るためと考えられる。 That is, as shown in FIG. 4, a force F for restoring the relative displacement of the seat cover 1 acts on both ends of the urethane pad layer 5 and the seat cover 1 formed by bending. . At this time, if the frictional force f between the back base fabric layer and the urethane pad layer of the seat cover 1 is small, the extension of the seat cover 1 is restored and no gap is formed between them. If the force is greater than the force for returning the displacement, the seat cover 1 is held in the state shown in FIG. 4, and a bend occurs, thereby forming a gap (wrinkle). This is because it has been confirmed that there is a phenomenon that the wrinkle is eliminated by hitting the cover surface of the wrinkled sheet several times, so that the seat cover itself is plastically deformed and wrinkles are generated. I understand that there is no. That is, it is considered that the seat cover returns to the initial shape by opening the contact portion between the seat cover and the urethane pad layer and eliminating the frictional force therebetween.
本発明は上記のようなシワ発生の問題点を解決して、長時間の使用に供してもシワの発生を極力少なくすることができ、外観品質の低下を防止することができる新規な車両用シートカバー構造を提供することを目的として完成されたものである。 The present invention solves the problem of wrinkle generation as described above, can reduce wrinkle generation as much as possible even when used for a long time, and can prevent deterioration in appearance quality. It was completed for the purpose of providing a seat cover structure.
上記課題を解決するためになされた本発明の車両用シートカバー構造は、ウレタンパッド層の表面を覆うようにシートカバーを被せた車両用シートカバー構造であって、シートカバーは表面側から表皮層、ウレタンラミネート層、裏基布層を順次積層して形成され、前記裏基布層と前記ウレタンパッド層との間には、部分的に、あるいは全体にシワ発生防止用の布帛が介在されており、前記シワ発生防止用の布帛は、このシワ発生防止用の布帛と前記裏基布層との摩擦係数が、前記ウレタンパッド層と裏基布層との摩擦係数よりも小さくなるような織布または不織布からなることを特徴とするものである。
なお、前記した発明におけるシワ発生防止用の布帛は、シートカバーの裏面側に縫合により一体化されたものとして、縫合部以外の箇所においては、シートカバーの前記裏基布層とシワ発生防止用の布帛との間に空隙を備えているものとすることが特に好ましく、また、前記したシワ発生防止用の布帛をウレタンパッド層の表面に貼着しておいたものとしてもよく、さらに、シワ発生防止用の布帛を用いる箇所としてはシートクッションあるいはシートバックの天板構成部分が特に有効である。
The vehicle seat cover structure of the present invention made to solve the above problems is a vehicle seat cover structure in which a seat cover is covered so as to cover the surface of the urethane pad layer, and the seat cover is a skin layer from the surface side. , A urethane laminate layer and a back base fabric layer are sequentially laminated, and a wrinkle-preventing fabric is interposed between the back base fabric layer and the urethane pad layer partially or entirely. The wrinkle-preventing fabric is woven such that the friction coefficient between the wrinkle-preventing fabric and the back base fabric layer is smaller than the friction coefficient between the urethane pad layer and the back base fabric layer. It consists of cloth or a nonwoven fabric, It is characterized by the above-mentioned.
In the above-described invention, the fabric for preventing wrinkle generation is integrated with the back side of the seat cover by stitching. It is particularly preferable that a gap is provided between the surface and the cloth, and the cloth for preventing wrinkle generation may be adhered to the surface of the urethane pad layer. A seat cushion or a seat back top plate portion is particularly effective as a location where the fabric for preventing generation is used.
本発明では、前記裏基布層とウレタンパッド層の間に、部分的に、あるいは全体にシワ発生防止用の布帛を介在させた構造としたので、裏基布層とウレタンパッド層の物性の差異（特に摩擦力の差）を小さくすることができ、この結果、シートカバーを円滑に初期形状に戻すことが可能でシワの発生を極力少なくすることが可能となる。 In the present invention, since the wrinkle-preventing fabric is interposed between the back base fabric layer and the urethane pad layer, the physical properties of the back base fabric layer and the urethane pad layer are provided. The difference (particularly the difference in frictional force) can be reduced, and as a result, the seat cover can be smoothly returned to the initial shape, and the generation of wrinkles can be minimized.
以下に、図面を参照しつつ本発明の好ましい実施の形態を示す。
図１は本発明の車両用シートカバー構造の断面図である。図において、１はシートカバー本体であり、このシートカバー本体１はファブリック等の表皮層２と、この表皮層２の裏面側に貼着された軟質ポリウレタンフォーム等からなるラミネート層３と、このラミネート層３に縫合される裏基布層４から構成されている。なお、５はシートクッションやシートバックなどのシート本体側のウレタンパッド層である。
ここで前記表皮層２は意匠面を形成するもの、ラミネート層３は着座時における体圧を微少分散させるもの、裏基布層４はシートカバー縫製時の滑り性を確保するものであり、以上の構造は従来の車両用シートカバー構造と基本的に同じである。
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view of a vehicle seat cover structure according to the present invention. In the figure, reference numeral 1 denotes a seat cover body. The seat cover body 1 includes a skin layer 2 such as a fabric, a laminate layer 3 made of a flexible polyurethane foam or the like attached to the back side of the skin layer 2, and the laminate. The back base fabric layer 4 is stitched to the layer 3. Reference numeral 5 denotes a urethane pad layer on the seat body side such as a seat cushion or a seat back.
Here, the skin layer 2 forms a design surface, the laminate layer 3 slightly disperses body pressure at the time of sitting, and the back base fabric layer 4 ensures slipperiness at the time of sewing a seat cover. This structure is basically the same as the conventional vehicle seat cover structure.
本発明では、前記裏基布層４とウレタンパッド層５の間にシワ発生防止用の布帛６を介在させた構造としてある。この布帛６は、裏基布層４とウレタンパッド層５間の物性の差異（特に摩擦力の差）を小さくして両者の滑りが良くなるように作用し、シートカバーを円滑に初期形状に戻すことによりシワの発生を防止する目的で設けてある。
従って、シワ発生防止用の布帛としては、一般的な裏基布層として使用する摩擦係数の低い布帛として知られるナイロントリコット、ナイロン含有不織布、ＰＥＴ不織布などを用いることとする。そして、このようなシワ発生防止用の布帛は、シートカバーの裏基布層４とシート本体側のウレタンパッド層間全体に介在させてもよいが、シートクッションあるいはシートバックの天板構成部分の表面とシートカバーの裏基布層４との間などのシワが生じやすい箇所のみに部分的に介在させておいてもよい。このようにシワが生じやすい箇所のみに部分的に介在させるには、例えば、表面側から表皮層、ウレタンラミネート層、裏基布層を順次積層して形成されたシートカバー本体１の天板部の裏側に、図６に示すように、このシートカバー本体１の天板部よりも若干大きめでシートカバー本体の裏面となる裏基布層４との間に適度の空隙７が形成されるが、折り重なって意匠面や座り心地に悪影響を及ぼすことがない程度の所要の余裕のあるシワ発生防止用の布帛６を縫合により一体化するなどしておけばよい。
In the present invention, a fabric 6 for preventing wrinkles is interposed between the back base fabric layer 4 and the urethane pad layer 5. This fabric 6 acts to reduce the difference in physical properties (particularly the difference in frictional force) between the back base fabric layer 4 and the urethane pad layer 5 and to improve the slippage between the two, so that the seat cover can be smoothly brought into the initial shape. It is provided for the purpose of preventing the generation of wrinkles by returning.
Therefore, as the fabric for preventing wrinkles, nylon tricot, nylon-containing nonwoven fabric, PET nonwoven fabric, etc., which are known as fabrics having a low friction coefficient used as a general backing fabric layer, are used. Such a wrinkle-preventing fabric may be interposed between the back base fabric layer 4 of the seat cover and the entire urethane pad layer on the seat body side, but the surface of the seat cushion or the top plate component of the seat back. Alternatively, it may be partially interposed only in a portion where wrinkles are likely to occur, such as between the seat cover and the back base fabric layer 4 of the seat cover. In order to partially interpose only in the place where wrinkles are likely to occur, for example, the top plate portion of the seat cover body 1 formed by sequentially laminating a skin layer, a urethane laminate layer, and a back base fabric layer from the surface side As shown in FIG. 6, a moderate gap 7 is formed between the back base fabric layer 4 which is slightly larger than the top plate portion of the seat cover body 1 and which is the back surface of the seat cover body. The wrinkle-preventing fabric 6 having a required margin that does not adversely affect the design surface and sitting comfort when folded is integrated by stitching.
なお、このシワ発生防止用の布帛６は、シートカバーの縫合時に裏基布層４の裏面側にセットしておき同時に縫い付けたものとすることで簡単に形成することができ、また、シワ発生防止用の布帛６を、図５に示すように、シートクッションあるいはシートバックのウレタンパッド層５の着座部表面に予め、接着剤や両面テープ等で貼り付けておくことで同様に裏基布層４とウレタンパッド層５の間に介在させることもできる。 The wrinkle-preventing fabric 6 can be easily formed by setting it on the back side of the back base fabric layer 4 when sewing the seat cover and sewing it simultaneously. Similarly, as shown in FIG. 5, the fabric 6 for preventing the occurrence of the occurrence of the occurrence of the occurrence of the fabric is adhered to the seat cushion surface of the urethane pad layer 5 of the seat cushion or the seat back in advance with an adhesive or a double-sided tape. It can also be interposed between the layer 4 and the urethane pad layer 5.
図８は、本発明であるシワ発生防止用の布帛を用いることなく、シートカバーの裏基布としてＰＥＴ不織布、ナイロントリコット、ナイロン含有不織布を用いた場合における裏基布とウレタンパッドとの接触による摩擦係数を示すグラフであり、図７は本発明であるシワ発生防止用の布帛を裏基布とウレタンパッドとの間に介在させた場合における裏基布とシワ発生防止用の布帛との接触による摩擦係数を示すグラフである。グラフに示すように、裏基布およびシワ発生防止用の布帛としてＰＥＴ不織布、或いは、種々の織組織を有するナイロントリコットを用い、異なる組み合わせによる摩擦係数（静摩擦）の測定を行なった。これらの表によれば、シートクッションの裏基布とウレタンパッドとが直接接触するのではなく、本発明のようにシートクッションの裏基布がシワ発生防止用の布帛と接触する場合は、図７に見られるように静摩擦における摩擦係数が約０．２７〜０．３７であるのに対して、従来品のようにウレタンパッドとが直接接触する場合は、図８に見られるように静摩擦における摩擦係数が約０．６２〜０．９５であり、シワ発生防止用の布帛を用いると摩擦係数が著しく低下することが判る。また、長時間連続乗車しての実験によれば、本発明のようにシワ発生防止用の布帛を用いたシートカバー構造では、降車直後でもシートの着座面が図３に示すように元の形状に復元されており、シワの発生を防止できることを確認できた。 FIG. 8 shows the contact between the back base fabric and the urethane pad when PET nonwoven fabric, nylon tricot, or nylon-containing nonwoven fabric is used as the back base fabric of the seat cover without using the fabric for preventing wrinkle generation according to the present invention. FIG. 7 is a graph showing the coefficient of friction, and FIG. 7 shows the contact between the back base fabric and the fabric for preventing wrinkles when the fabric for preventing wrinkles according to the present invention is interposed between the back base fabric and the urethane pad. It is a graph which shows the friction coefficient by. As shown in the graph, the coefficient of friction (static friction) was measured by using different combinations of PET nonwoven fabric or nylon tricot having various woven structures as the backing base fabric and the fabric for preventing wrinkle generation. According to these tables, when the back base fabric of the seat cushion and the urethane pad are not in direct contact with each other, but when the back base fabric of the seat cushion is in contact with the fabric for preventing wrinkles as in the present invention, 7, the coefficient of friction in static friction is about 0.27 to 0.37, whereas when the urethane pad is in direct contact as in the conventional product, in static friction as shown in FIG. 8. It can be seen that the coefficient of friction is about 0.62 to 0.95, and that the coefficient of friction is remarkably lowered when a fabric for preventing wrinkles is used. Further, according to an experiment in which a passenger rides continuously for a long time, in the seat cover structure using the fabric for preventing wrinkles as in the present invention, the seating surface of the seat is the original shape as shown in FIG. It was confirmed that wrinkles could be prevented.
以上の説明からも明らかなように、本発明はウレタンパッド層の表面を覆うようにシートカバーを被せた車両用シートカバー構造であって、シートカバーを、表面側から表皮層、ウレタンラミネート層、裏基布層を順次積層して形成されたものとして、このシートカバーの裏基布層と前記ウレタンパッド層との間に、シワ発生防止用の布帛として、このシワ発生防止用の布帛と前記裏基布層との摩擦係数が前記ウレタンパッド層と裏基布層との摩擦係数よりも小さくなるような織布または不織布を、部分的に、あるいは全体に介在させた構造としたので、裏基布層とウレタンパッド層間の物性の差異（特に摩擦力の差）を小さくして両者の滑りが良くなるように補助し、極力シワの発生を防止することが可能となり、この結果、長時間の使用に供してもシワの発生を的確に防止できることとなる。 As is clear from the above description, the present invention is a vehicle seat cover structure in which a seat cover is covered so as to cover the surface of the urethane pad layer, and the seat cover is covered with a skin layer, a urethane laminate layer, As a fabric formed by sequentially laminating a back base fabric layer, a fabric for preventing wrinkle generation between the back base fabric layer of the seat cover and the urethane pad layer, Since the woven fabric or non-woven fabric has a structure in which the friction coefficient with the back base fabric layer is smaller than the friction coefficient between the urethane pad layer and the back base fabric layer, it is partially or entirely interposed. The difference in physical properties (especially the difference in frictional force) between the base fabric layer and the urethane pad layer can be reduced to help improve the slippage between the two, preventing wrinkles as much as possible. Use of It is subjected so that the generation of wrinkles can be prevented appropriately.
１ シートカバー本体
２ 表皮層
３ ウレタンラミネート層
４ 裏基布層
５ ウレタンパッド層
６ シワ発生防止用の布帛
７ 空隙
DESCRIPTION OF SYMBOLS 1 Seat cover main body 2 Skin layer 3 Urethane laminate layer 4 Back base fabric layer 5 Urethane pad layer 6 Fabric for preventing wrinkle generation 7 Air gap
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006341448A JP4888104B2 (en) | 2006-12-19 | 2006-12-19 | Vehicle seat cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006341448A JP4888104B2 (en) | 2006-12-19 | 2006-12-19 | Vehicle seat cover structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008149005A JP2008149005A (en) | 2008-07-03 |
| JP4888104B2 true JP4888104B2 (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006341448A Expired - Fee Related JP4888104B2 (en) | 2006-12-19 | 2006-12-19 | Vehicle seat cover structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6440460B2 (en) * | 2014-11-07 | 2018-12-19 | ダイキョーニシカワ株式会社 | Interior parts for vehicles |
| JP6488201B2 (en) | 2015-06-29 | 2019-03-20 | 日本発條株式会社 | Seat cover and vehicle seat |
| DE102019129749A1 (en) * | 2019-11-05 | 2021-05-06 | Audi Ag | Upholstery element with a sliding base material for a vehicle seat, vehicle seat and motor vehicle with such a vehicle seat |
| DE102020100128A1 (en) * | 2020-01-07 | 2021-07-08 | Bayerische Motoren Werke Aktiengesellschaft | SEAT COVER FOR ONE SEAT |
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- 2006-12-19 JP JP2006341448A patent/JP4888104B2/en not_active Expired - Fee Related
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