JP2014110833A - Skin integral foam formed product - Google Patents

Skin integral foam formed product Download PDF

Info

Publication number
JP2014110833A
JP2014110833A JP2012266052A JP2012266052A JP2014110833A JP 2014110833 A JP2014110833 A JP 2014110833A JP 2012266052 A JP2012266052 A JP 2012266052A JP 2012266052 A JP2012266052 A JP 2012266052A JP 2014110833 A JP2014110833 A JP 2014110833A
Authority
JP
Japan
Prior art keywords
skin
bag body
skin pieces
foam
pieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2012266052A
Other languages
Japanese (ja)
Inventor
Takeshi Morikawa
武司 森川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inoac Corp
Original Assignee
Inoue MTP KK
Inoac Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inoue MTP KK, Inoac Corp filed Critical Inoue MTP KK
Priority to JP2012266052A priority Critical patent/JP2014110833A/en
Publication of JP2014110833A publication Critical patent/JP2014110833A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a skin integral foam formed product capable of suppressing underfill and bottoming-up of a core part.SOLUTION: A headrest 10 is formed by following steps of: sewing plural skin pieces 20 into a bag shape so as to form a bag body 14; sewing a belt material 40 to the inside of the bag body 14 so as to cover a border part 25 of the skin pieces 20,20; and foaming a core part 15 inside the bag body 14.The belt material 40 is formed by laminating resin film 42 on a nonwoven cloth 41 and is positioned so that the resin film 42 faces to the core part 15 side.

Description

本発明は、複数の表皮片を縫製して袋体を形成し、その袋体の内部でコア部を発泡成形してなる表皮一体発泡成形品に関する。   The present invention relates to a skin-integrated foam-molded product formed by sewing a plurality of skin pieces to form a bag body and foam-molding a core portion inside the bag body.

従来、この種の表皮一体発泡成形品として、発泡成形時に表皮片同士の境界部分から発泡樹脂原料が漏出することを防止するために、袋体の内側に、表皮片同士の境界部分を覆うように、帯状の不織布を縫い付けたり、帯状の樹脂フィルムを貼着したものが知られている（例えば、特許文献１）。   Conventionally, as this type of skin-integrated foam-molded product, in order to prevent the foamed resin material from leaking from the boundary portion between the skin pieces during foam molding, the boundary portion between the skin pieces is covered inside the bag body. In addition, a belt-like non-woven fabric is sewn or a belt-like resin film is pasted (for example, Patent Document 1).

特開２０１０−２２４０２号公報（段落［０００３］、［００３９］、図１）JP 2010-22402 (paragraphs [0003] and [0039], FIG. 1)

しかしながら、表皮片同士の境界部分を不織布で覆った表皮一体発泡成形品では、発泡成形時に発生する発泡ガスが表皮片の境界部分から過剰に抜け、発泡倍率が目標に達せずにコア部が小さくなるという、所謂、底上がりの問題があった。また、表皮片同士の境界部分を樹脂フィルムで覆ったものでは、底上がりの問題は解消されるものの、発泡ガスが袋体から抜けずにボイドとなり、コア部に欠肉が生じるという問題があった。   However, in the case of a skin-integrated foam-molded product in which the boundary part between the skin pieces is covered with a nonwoven fabric, the foaming gas generated during foaming excessively escapes from the boundary part of the skin piece, the foaming ratio does not reach the target, and the core part is small. There was a so-called problem of rising. In addition, in the case where the boundary part between the skin pieces is covered with a resin film, the problem of the rise of the bottom is solved, but the foaming gas does not escape from the bag and becomes a void, resulting in a lack of thickness in the core part. It was.

本発明は、上記事情に鑑みてなされたもので、コア部の欠肉と底上がりを抑えることが可能な表皮一体発泡成形品の提供を目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a skin-integrated foam-molded product that can suppress the lack of the core portion and the bottom.

上記目的を達成するためになされた請求項１の発明に係る表皮一体発泡成形品は、複数の表皮片を縫製して袋体を形成すると共に、その袋体の内側に表皮片同士の境界部分を覆うように帯材を縫い付けるか又は貼り付け、袋体の内部でコア部を発泡成形してなる表皮一体発泡成形品において、帯材は、不織布のコア部側に樹脂フィルムを重ねてなるところに特徴を有する。   The skin-integrated foam-molded article according to the invention of claim 1 made to achieve the above object forms a bag body by sewing a plurality of skin pieces, and a boundary portion between the skin pieces inside the bag body In a skin-integrated foam-molded product formed by sewing or pasting a band material so as to cover and foam-molding the core part inside the bag body, the band material is formed by overlaying a resin film on the core part side of the nonwoven fabric However, it has characteristics.

請求項２の発明は、請求項１に記載の表皮一体発泡成形品において、樹脂フィルムは、不織布にラミネートされているところに特徴を有する。   The invention of claim 2 is characterized in that in the skin-integrated foam-molded article of claim 1, the resin film is laminated to a nonwoven fabric.

請求項３の発明は、請求項１又は２に記載の表皮一体発泡成形品において、袋体は、表皮片同士の境界部分で、それら表皮片同士の縁部が袋体の内側に入り込んで相反する方向に折り返された構成をなし、表皮片同士の１対の折り返し部分に帯材を重ね、表皮片同士の境界部分にその境界線を挟むダブルステッチを入れて、帯材の両側部を１対の折り返し部分を間に挟んで表皮片同士に縫い付けたところに特徴を有する。   According to a third aspect of the present invention, in the skin-integrated foam-molded article according to the first or second aspect, the bag body is a boundary portion between the skin pieces, and the edges of the skin pieces enter the inside of the bag body and are in conflict. The band is overlapped with a pair of folded parts between the skin pieces, and a double stitch is inserted at the boundary part between the skin pieces so that both sides of the band material are 1 It is characterized in that it is sewn together between the skin pieces with the pair of folded portions in between.

請求項４の発明は、請求項１乃至３のうち何れか１の請求項に記載の表皮一体発泡成形品において、不織布の目付量を、３０〜７０ｇ／ｍ２としたところに特徴を有する。 The invention of claim 4 is characterized in that, in the skin-integrated foam-molded article according to any one of claims 1 to 3, the basis weight of the nonwoven fabric is 30 to 70 g / m 2 .

請求項５の発明は、請求項１乃至４のうち何れか１の請求項に記載の表皮一体発泡成形品において、樹脂フィルムは、ポリエチレンフィルムであるところに特徴を有する。   The invention according to claim 5 is characterized in that, in the skin-integrated foam-molded article according to any one of claims 1 to 4, the resin film is a polyethylene film.

［請求項１，２，４，５の発明］
請求項１の発明では、表皮片同士の境界部分を覆うように袋体の内側に縫い付けられるか又は貼り付けられた帯材が、不織布の内側に樹脂フィルムを重ねた構成になっているので、発泡ガスは、樹脂フィルムによって帯材を厚さ方向に通過することが防がれ、帯材の端面から不織布内を帯材の幅方向に通過する。このように、本発明では、帯材が、その厚さ方向では、発泡ガスの通過を防ぐ一方で、その幅方向では、発泡ガスの通過を許容する。これにより、表皮片同士の境界部分から発泡ガスが過剰に抜けることを防ぎつつ、ボイドの発生を防ぐことができ、コア部の底上がりと欠肉を防ぐことができる。 [Inventions of Claims 1, 2, 4, 5]
In the invention of claim 1, since the band material sewn or pasted inside the bag body so as to cover the boundary part between the skin pieces has a structure in which the resin film is superimposed on the inside of the nonwoven fabric. The foaming gas is prevented from passing through the strip in the thickness direction by the resin film, and passes through the inside of the nonwoven fabric from the end surface of the strip in the width direction of the strip. Thus, in the present invention, the band material prevents passage of the foaming gas in the thickness direction, while allowing passage of the foaming gas in the width direction. Thereby, generation | occurrence | production of a void can be prevented, preventing foaming gas from escaping excessively from the boundary part of skin pieces, and the bottom rise and lack of a core part can be prevented.

帯材は、別々の不織布と樹脂フィルムを２枚重ねにしたものであってもよいし、請求項２の発明のように、樹脂フィルムが不織布にラミネートされた積層シートであってもよい。請求項２の発明によれば、樹脂フィルムと不織布とを位置合わせする必要がなくなり、帯材の縫いつけが容易となる。   The strip may be a laminate of two separate non-woven fabrics and resin films, or may be a laminated sheet in which the resin films are laminated to the non-woven fabric as in the invention of claim 2. According to invention of Claim 2, it becomes unnecessary to align a resin film and a nonwoven fabric, and the sewing of a strip becomes easy.

ここで、不織布の目付量は、通気性の観点から、３０〜７０ｇ／ｍ２であることが好ましい（請求項４の発明）。また、樹脂フィルムは、柔軟性の観点から、ポリエチレンフィルムであることが好ましい（請求項５の発明）。 Here, the basis weight of the nonwoven fabric is preferably 30 to 70 g / m 2 from the viewpoint of air permeability (the invention of claim 4). The resin film is preferably a polyethylene film from the viewpoint of flexibility (invention of claim 5).

［請求項３の発明］
請求項３の発明によれば、帯材の両側部が、表皮片の折り返し部分を間に挟んで表皮片同士に縫い付けられているので、帯材の両側部が表皮片から浮き上がることが防がれる。これにより、帯材と表皮片との間の隙間から過剰に発泡ガスが抜けることが抑えられる。 [Invention of claim 3]
According to the invention of claim 3, since the both side portions of the band material are sewn to the skin pieces with the folded portion of the skin piece in between, the both side portions of the band material are prevented from being lifted from the skin piece. Can be removed. Thereby, it is suppressed that foaming gas escapes excessively from the clearance gap between a strip and a skin piece.

本発明の一実施形態に係るヘッドレストの斜視図The perspective view of the headrest which concerns on one Embodiment of this invention. ヘッドレストの側断面図Cross section of headrest （Ａ）縫い代を折り返す前の表皮片の側断面図、（Ｂ）縫い代を折り返した後の表皮片の側断面図(A) Side sectional view of the skin piece before folding the seam allowance, (B) Side sectional view of the skin piece after folding the seam allowance 帯材周辺の断面図Cross section around the strip 発泡樹脂原料注入時の袋体の側断面図Side cross-sectional view of the bag body when injecting foam resin material 発泡成形後の袋体及びコア部の側断面図Side sectional view of bag and core after foam molding 発泡ガスの流れを説明するための図Diagram for explaining the flow of foaming gas 変形例に係る帯材周辺の断面図Sectional view around the strip according to the modification 変形例に係る帯材周辺の断面図Sectional view around the strip according to the modification 変形例に係る帯材周辺の断面図Sectional view around the strip according to the modification

以下、本発明を車両用シートのヘッドレストに適用した一実施形態を、図１〜図７に基づいて説明する。図１に示すように、ヘッドレスト１０は、略台形状をなして前後に扁平なヘッドレスト本体１０Ｈの内部に門形形状のステー１２の頂部を備え、ステー１２の脚部１２Ａ，１２Ａが、ヘッドレスト本体１０Ｈの底部から横並びになって外側に延びている。そして、ステー１２の脚部１２Ａ，１２Ａが、車両用シート９０の上部に固定されるようになっている。   Hereinafter, an embodiment in which the present invention is applied to a headrest of a vehicle seat will be described with reference to FIGS. As shown in FIG. 1, the headrest 10 includes a top portion of a gate-shaped stay 12 inside a headrest body 10H that has a substantially trapezoidal shape and is flattened back and forth, and the leg portions 12A and 12A of the stay 12 are headrest bodies. It extends side by side from the bottom of 10H. The legs 12 </ b> A and 12 </ b> A of the stay 12 are fixed to the upper part of the vehicle seat 90.

図２に示すように、ヘッドレスト本体１０Ｈは、発泡ウレタン樹脂製のコア部１５の外側が袋体１４で覆われた構造になっている。図５及び図６に示すように、コア部１５は、発泡成形金型３０にセットされた袋体１４の内部で発泡ウレタン原料３５を発泡させて得られる。   As shown in FIG. 2, the headrest main body 10 </ b> H has a structure in which the outer side of the core portion 15 made of urethane foam resin is covered with a bag body 14. As shown in FIGS. 5 and 6, the core portion 15 is obtained by foaming the urethane foam raw material 35 inside the bag body 14 set in the foam molding die 30.

なお、ステー１２は、頂部が袋体１４に挿通された状態で発泡成形金型３０にセットされ（図５参照）、コア部１５が発泡成形されることで、ステー１２の頂部がコア部１５内に埋設される。   The stay 12 is set in the foam molding die 30 with the top portion inserted into the bag body 14 (see FIG. 5), and the core portion 15 is foam-molded so that the top portion of the stay 12 is the core portion 15. Buried inside.

図２に示すように、袋体１４は、複数の表皮片２０（図２には、３つの表皮片２０が示されている。）を袋状に縫製して形成されている。この表皮片２０は、本革、ファブリック、合成皮革等の表地２１に、裏地材２２が貼り合わされてなる。なお、本実施形態では、裏地材２２として、発泡ウレタンスラブのコア部１５側の面にポリウレタンフィルムを貼り合わせたものが用いられている。   As shown in FIG. 2, the bag 14 is formed by sewing a plurality of skin pieces 20 (three skin pieces 20 are shown in FIG. 2) into a bag shape. The skin piece 20 is formed by bonding a backing material 22 to a surface material 21 such as genuine leather, fabric, or synthetic leather. In the present embodiment, the backing material 22 is a polyurethane urethane slab having a polyurethane film bonded to the surface on the core 15 side.

詳細には、図３（Ａ）及び図３（Ｂ）に示すように、袋体１４は、表皮片２０，２０の縁部の表側、即ち、表地２１，２１同士を重ね合わせて、それら表皮片２０，２０の縁部同士を、端縁から縫い代２０Ａ，２０Ａをとって縫い合わせ、表地２１，２１が表側を向くように裏返すことで得られる。縫い代２０Ａ，２０Ａは、相反する方向に折り返され、第１と第２のステッチ２６Ａ，２６Ｂ（図４参照）によって表皮片２０，２０の裏側に縫い付けられる。その結果、袋体１４は、表皮片２０，２０同士の境界部分２５で、それら表皮片２０，２０同士の縁部、即ち、縫い代２０Ａ，２０Ａが相反する方向に折り返された構造になっている（図２及び図４参照）。   Specifically, as shown in FIGS. 3 (A) and 3 (B), the bag body 14 is formed by superimposing the outer sides of the outer skin pieces 20 and 20, that is, the outer fabrics 21 and 21. The edge portions of the pieces 20 and 20 are sewn together by taking seams 20A and 20A from the end edges, and are turned over so that the outer fabrics 21 and 21 face the front side. The seams 20A and 20A are folded back in opposite directions and sewn on the back side of the skin pieces 20 and 20 by the first and second stitches 26A and 26B (see FIG. 4). As a result, the bag body 14 has a structure in which, at the boundary portion 25 between the skin pieces 20, 20, the edges of the skin pieces 20, 20 are folded back in opposite directions, that is, the seams 20A, 20A are opposite to each other. (See FIGS. 2 and 4).

なお、本実施形態では、表皮片２０，２０の縫い代２０Ａ，２０Ａが本発明の「表皮片同士の１対の折り返し部分」に相当する。また、図１に示すように、第１と第２のステッチ２６Ａ，２６Ｂは、表皮片２０，２０の境界線２５Ｌを挟んで配置され、これら第１と第２のステッチ２６Ａ，２６Ｂによって本発明に係るダブルステッチ２６が形成されている。   In the present embodiment, the seam allowances 20A and 20A of the skin pieces 20 and 20 correspond to “a pair of folded portions between the skin pieces” of the present invention. Further, as shown in FIG. 1, the first and second stitches 26A and 26B are arranged across the boundary line 25L of the skin pieces 20 and 20, and the first and second stitches 26A and 26B are used in the present invention. A double stitch 26 is formed.

図４に示すように、本実施形態のヘッドレスト１０では、コア部１５を発泡成形する際に発泡ウレタン原料３５が表皮片２０，２０の継ぎ目から漏出しないように、表皮片２０，２０の縫い代２０Ａ，２０Ａに帯材４０が重ねられて表皮片２０，２０同士の境界部分２５を覆っている。そして、上述したダブルステッチ２６によって、帯材４０が、縫い代２０Ａ，２０Ａと共に表皮片２０，２０に縫い付けられている。   As shown in FIG. 4, in the headrest 10 of the present embodiment, the seam allowance 20 </ b> A of the skin pieces 20, 20 is prevented so that the foamed urethane raw material 35 does not leak from the joints of the skin pieces 20, 20 when the core portion 15 is foam-molded. , 20 </ b> A is overlapped to cover the boundary portion 25 between the skin pieces 20, 20. And by the double stitch 26 mentioned above, the strip | belt material 40 is sewn on the skin pieces 20 and 20 with the seam allowances 20A and 20A.

帯材４０は、表皮片２０側が通気性のある層で構成される一方、コア部１５側が通気性のない層で構成された２層構造になっている。具体的には、通気性のある不織布４１に、通気性のない樹脂フィルム４２をラミネートしてなり、樹脂フィルム４２がコア部１５側を向くように配置されている。不織布４１は、例えば、スパンレース不織布、スパンボンド不織布等であって、目付量が６０ｇ／ｍ２になっている。また、樹脂フィルム４２は、ポリエチレンフィルムであって、厚さが４０μｍになっている。 The band member 40 has a two-layer structure in which the skin piece 20 side is constituted by a layer having air permeability, while the core portion 15 side is constituted by a layer having no air permeability. More specifically, a non-breathable resin film 42 is laminated on a breathable nonwoven fabric 41, and the resin film 42 is disposed so as to face the core portion 15 side. The nonwoven fabric 41 is, for example, a spunlace nonwoven fabric or a spunbond nonwoven fabric, and has a basis weight of 60 g / m 2 . The resin film 42 is a polyethylene film and has a thickness of 40 μm.

本実施形態のヘッドレスト１０の構成に関する説明は以上である。次に、ヘッドレスト１０の製造方法について説明する。ヘッドレスト１０を製造するには、まず、複数の表皮片２０を縫製して袋体１４を形成する（図３（Ａ）及び図３（Ｂ）参照）。このとき、袋体１４には、表皮片２０，２０同士の境界線２５Ｌを挟むダブルステッチ２６が入れられて、帯材４０が縫い代２０Ａと共に表皮片２０に縫い付けられる。   The description regarding the structure of the headrest 10 of this embodiment is above. Next, a method for manufacturing the headrest 10 will be described. To manufacture the headrest 10, first, a plurality of skin pieces 20 are sewn to form the bag body 14 (see FIGS. 3A and 3B). At this time, the double stitch 26 sandwiching the boundary line 25L between the skin pieces 20 and 20 is put in the bag body 14, and the belt material 40 is sewn to the skin piece 20 together with the sewing allowance 20A.

次いで、袋体１４にステー１２を挿通した状態で、それら袋体１４とステー１２とを発泡成形金型３０にセットする（図５参照）。詳細には、袋体１４は、底部が上側を向くように発泡成形金型３０にセットされ、ステー１２の脚部１２Ａは、袋体１４から上方に突出する。   Next, in a state where the stay 12 is inserted into the bag body 14, the bag body 14 and the stay 12 are set in the foam molding die 30 (see FIG. 5). Specifically, the bag body 14 is set in the foam molding die 30 so that the bottom portion faces upward, and the leg portion 12A of the stay 12 protrudes upward from the bag body 14.

次いで、袋体１４の底部に形成された注入口１４Ａにノズル３６を挿通し、袋体１４の内部に発泡ウレタン原料３５を注入し、発泡成形金型３０の加熱により発泡ウレタン原料３５を発泡させる。このとき、袋体１４内に注入された発泡ウレタン原料３５は、以下に説明するように、帯材４０によって、表皮片２０，２０の境界部分２５から漏れ出ることが防がれる。   Next, the nozzle 36 is inserted into the inlet 14 </ b> A formed at the bottom of the bag body 14, the foamed urethane raw material 35 is injected into the bag body 14, and the foamed urethane raw material 35 is foamed by heating the foam molding die 30. . At this time, the foamed urethane raw material 35 injected into the bag body 14 is prevented from leaking from the boundary portion 25 of the skin pieces 20, 20 by the band material 40 as described below.

即ち、表皮片２０，２０の継ぎ目２５付近では、発泡ウレタン原料３５は、帯材４０の厚さ方向では、樹脂フィルム４２によって帯材４０を通過することが防がれる。また、帯材４０の幅方向では、発泡ウレタン原料３５は、帯材４０の端面から不織布４１に含浸し、表皮片２０，２０同士の境界部分２５から漏出することが防がれる。   That is, in the vicinity of the joint 25 of the skin pieces 20, 20, the foamed urethane raw material 35 is prevented from passing through the band material 40 by the resin film 42 in the thickness direction of the band material 40. Moreover, in the width direction of the strip 40, the urethane foam raw material 35 is impregnated into the nonwoven fabric 41 from the end face of the strip 40 and is prevented from leaking from the boundary portion 25 between the skin pieces 20, 20.

発泡ウレタン原料３５の発泡が終了すると、図６に示すように、袋体１４内にコア部１５が成形される。そして、発泡成形金型３０から成形品を脱型することで、ヘッドレスト１０が得られる。   When the foaming of the foamed urethane raw material 35 is finished, the core portion 15 is formed in the bag body 14 as shown in FIG. Then, the headrest 10 is obtained by removing the molded product from the foaming mold 30.

ところで、発泡ウレタン原料３５を発泡させる際、袋体１４の内部では、発泡ウレタン原料３５の発泡に伴った発泡ガスが発生する。そして、発泡ガスが袋体１４から過剰に抜け出てしまうと、発泡圧が低下し、発泡倍率が目標に達せずにコア部１５が小さくなるという底上がりの問題が生じる。一方、発泡ガスが袋体１４から全く抜け出ないと、ボイドが発生し、コア部１５の欠肉を招くという問題が生じる。   By the way, when the foamed urethane raw material 35 is foamed, a foaming gas is generated in the bag body 14 along with the foaming of the foamed urethane raw material 35. And if foaming gas escapes excessively from the bag body 14, foaming pressure will fall, and the problem of the rise that the core part 15 will become small without foaming magnification reaching a target arises. On the other hand, if the foaming gas does not escape from the bag body 14 at all, a void is generated, causing a problem that the core portion 15 is thinned.

ここで、本実施形態では、表皮片２０，２０の境界部分２５を覆う帯材４０によって、上記したコア部１５の底上がりと欠肉の問題の解消が図られている。   Here, in the present embodiment, the problem of the above-described rise in the bottom of the core portion 15 and lack of thickness is achieved by the strip 40 covering the boundary portion 25 of the skin pieces 20 and 20.

即ち、帯材４０は、上述のように、不織布４１に樹脂フィルム４２が貼り合わされてなり、樹脂フィルム４２がコア部１５側を向くように配置されている。従って、発泡ガスは、表皮片２０，２０の境界部分２５では、図７の矢印で示すように、樹脂フィルム４２によって帯材４０を厚さ方向に通過することが防がれる。そして、発泡ガスは、帯材４０の端面から不織布４１内を幅方向に通過し、表皮片２０，２０の境界線２５Ｌや第１と第２のステッチ２６Ａ，２６Ｂの針孔から袋体１４の外側に抜け出る。   That is, as described above, the band material 40 is formed by bonding the resin film 42 to the nonwoven fabric 41 and is arranged so that the resin film 42 faces the core portion 15 side. Therefore, the foamed gas is prevented from passing through the band material 40 in the thickness direction by the resin film 42 at the boundary portion 25 between the skin pieces 20 and 20, as indicated by arrows in FIG. Then, the foaming gas passes through the nonwoven fabric 41 in the width direction from the end face of the band member 40, and from the boundary line 25 </ b> L of the skin pieces 20, 20 and the needle holes of the first and second stitches 26 </ b> A, 26 </ b> B, Exit outside.

このように、本実施形態のヘッドレスト１０では、帯材４０が、その厚さ方向では、発泡ガスの通過を防ぐ一方で、その幅方向では、発泡ガスの通過を許容する。これにより、表皮片２０，２０の境界部分２５から発泡ガスが過剰に抜けることを防ぎつつ、ボイドの発生を防ぐことができ、コア部１５の底上がりと欠肉を防ぐことができる。   Thus, in the headrest 10 of the present embodiment, the band member 40 prevents the passage of the foaming gas in the thickness direction, while allowing the passage of the foaming gas in the width direction. Thereby, generation | occurrence | production of a void can be prevented while preventing foaming gas from escaping excessively from the boundary part 25 of the skin pieces 20 and 20, and the bottom rise and the lack of thickness of the core part 15 can be prevented.

しかも、帯材４０の両側部が、縫い代２０Ａ，２０Ａと共に表皮材２０，２０の裏側に縫い付けられているので、帯材４０の両側部が表皮片２０，２０から浮き上がることが防がれる。これにより、帯材４０と表皮片２０との間の隙間から過剰に発泡ガスが抜けることが一層抑えられる。   In addition, since both side portions of the band material 40 are sewn to the back side of the skin material 20, 20 together with the sewing allowances 20 </ b> A, 20 </ b> A, the both side portions of the band material 40 can be prevented from floating from the skin pieces 20, 20. Thereby, it is further suppressed that the foaming gas escapes excessively from the gap between the strip 40 and the skin piece 20.

［他の実施形態］
本発明は、上記実施形態に限定されるものではなく、例えば、以下に説明するような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。 [Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various modifications are possible within the scope of the invention other than the following. It can be changed and implemented.

（１）上記実施形態では、本発明をヘッドレストに適用した例を示したが、本発明を、例えば、アームレスト、シートクッション、シートバック等に適用してもよい。   (1) In the said embodiment, although the example which applied this invention to the headrest was shown, you may apply this invention to an armrest, a seat cushion, a seat back etc., for example.

（２）上記実施形態では、帯材４０が第１と第２のステッチ２６Ａ，２６Ｂ（ダブルステッチ２６）によって表皮片２０に縫いつけられていたが、図８に示すように、一方のステッチ（図８に示す例では、第２のステッチ２６Ｂ）のみで表皮片２０に縫いつけられてもよい。このような構成としても、表皮片２０と帯材４０とを接着剤等で接着しておけば、帯材４０が表皮片２０，２０同士の境界部分２５を覆った状態に保持されるので、上記実施形態と同様の効果を奏することができる。また、帯材４０を表皮片２０に縫い付けずに、接着剤等で貼り付けるだけでもよい。   (2) In the above embodiment, the band material 40 is sewn to the skin piece 20 by the first and second stitches 26A and 26B (double stitch 26). However, as shown in FIG. In the example shown in FIG. 8, the skin piece 20 may be sewn only by the second stitch 26B). Even in such a configuration, if the skin piece 20 and the belt material 40 are bonded with an adhesive or the like, the belt material 40 is held in a state of covering the boundary portion 25 between the skin pieces 20 and 20. The same effect as the above embodiment can be obtained. Further, the band material 40 may be simply pasted with an adhesive or the like without being sewn to the skin piece 20.

（３）帯材４０を、別体の不織布４１と樹脂フィルム４２で構成し、それら不織布４１及び樹脂フィルム４２を２枚重ねにして表皮片２０に縫いつけてもよい。なお、上記実施形態によれば、表皮片２０，２０の境界部分２５に対して不織布４１と樹脂フィルム４２とを別々に位置合わせする必要がなくなり、帯材４０の縫い付けが容易となる。   (3) The band material 40 may be composed of a separate nonwoven fabric 41 and a resin film 42, and the nonwoven fabric 41 and the resin film 42 may be overlapped and sewn to the skin piece 20. In addition, according to the said embodiment, it becomes unnecessary to align the nonwoven fabric 41 and the resin film 42 separately with respect to the boundary part 25 of the skin pieces 20 and 20, and the sewing of the strip | belt material 40 becomes easy.

（４）図９に示すように、袋体１４Ｖを、表皮片２０，２０同士の縫い代２０Ａ，２０Ａを袋体１４の内側で折り返さない構成とすると共に、表皮片２０，２０の縫い合わせ糸２０Ｂによって、帯材４０を縫い代２０Ａ，２０Ａに縫いつけた構成としてもよい。この構成によっても、帯材４０にて表皮片２０，２０同士の境界部分２５Ｖ（境界線２５Ｌ）を覆うことができ、上記実施形態と同様の効果を奏することができる。   (4) As shown in FIG. 9, the bag body 14 </ b> V is configured so that the seam allowances 20 </ b> A and 20 </ b> A between the skin pieces 20 and 20 are not folded back inside the bag body 14, and the sewing thread 20 </ b> B of the skin pieces 20 and 20 The belt material 40 may be sewn to the seams 20A and 20A. Also with this configuration, the strip 40 can cover the boundary portion 25V (boundary line 25L) between the skin pieces 20, 20, and the same effects as in the above embodiment can be achieved.

（５）図１０に示すように、袋体１４Ｗを、表皮片２０，２０の端縁部の表地２１，２１同士を重ね合わせて縫い合わせ、一方の表皮片２０のみを折り返した構成とすると共に、その袋体１４Ｗの内側に、表皮片２０，２０同士の境界部分２５Ｗ（即ち、表皮片２０，２０同士の重なり部分）を覆うように帯材４０を重ねて、その帯材４０を第１のステッチ２６Ａによって表皮片２０，２０に縫いつけた構成としてもよい。   (5) As shown in FIG. 10, the bag body 14 </ b> W has a configuration in which the outer skins 21, 21 at the edge portions of the skin pieces 20, 20 are overlapped and sewn together, and only one skin piece 20 is folded, On the inner side of the bag body 14W, the belt material 40 is overlapped so as to cover the boundary portion 25W between the skin pieces 20, 20 (that is, the overlapping portion between the skin pieces 20, 20), and the belt material 40 is used as a first material. It is good also as a structure sewn on the skin pieces 20 and 20 by the stitch 26A.

１０ ヘッドレスト
１４，１４Ｖ，１４Ｗ 袋体
１５ コア部
２０ 表皮片
２０Ａ 縫い代（折り返し部分）
２５，２５Ｖ，２５Ｗ 境界部分
２５Ｌ 境界線
２６ ダブルステッチ
４０ 帯材
４１ 不織布
４２ 樹脂フィルム 10 Headrest 14, 14V, 14W Bag 15 Core part 20 Skin piece 20A Seam allowance (folded part)
25, 25V, 25W Boundary portion 25L Boundary line 26 Double stitch 40 Band material 41 Non-woven fabric 42 Resin film

Claims (5)

複数の表皮片を縫製して袋体を形成すると共に、その袋体の内側に前記表皮片同士の境界部分を覆うように帯材を縫い付けるか又は貼り付け、前記袋体の内部でコア部を発泡成形してなる表皮一体発泡成形品において、
前記帯材は、不織布の前記コア部側に樹脂フィルムを重ねてなることを特徴とする表皮一体発泡成形品。 A plurality of skin pieces are sewn to form a bag body, and a band member is sewn or pasted inside the bag body so as to cover a boundary portion between the skin pieces, and a core portion is formed inside the bag body. In the foam integrated foam product formed by foam molding,
The strip is formed by overlapping a resin film on the core portion side of a non-woven fabric. 前記樹脂フィルムは、前記不織布にラミネートされていることを特徴とする請求項１に記載の表皮一体発泡成形品。   The skin-integrated foam-molded article according to claim 1, wherein the resin film is laminated on the nonwoven fabric. 前記袋体は、前記表皮片同士の前記境界部分で、それら表皮片同士の縁部が前記袋体の内側に入り込んで相反する方向に折り返された構成をなし、
前記表皮片同士の１対の折り返し部分に前記帯材を重ねると共に、前記表皮片同士の境界部分にその境界線を挟むダブルステッチを入れて、前記帯材の両側部を前記１対の折り返し部分を間に挟んで前記表皮片同士に縫い付けたことを特徴とする請求項１又は２に記載の表皮一体発泡成形品。 The bag body has a configuration in which the edge portion between the skin pieces is folded in the opposite direction by entering the inside of the bag body at the boundary portion between the skin pieces,
The band material is overlapped with a pair of folded portions between the skin pieces, and a double stitch is inserted between the skin pieces to sandwich the boundary line, and both sides of the belt material are paired with the pair of folded portions. 3. The skin-integrated foam-molded product according to claim 1, wherein the skin pieces are sewn to each other with a gap in between. 前記不織布の目付量を、３０〜７０ｇ／ｍ２としたことを特徴とする請求項１乃至３のうち何れか１の請求項に記載の表皮一体発泡成形品。 The basis weight of the nonwoven fabric, integral skin foam molded article according to any one of claims of claims 1 to 3, characterized in that a 30~70g / m 2. 前記樹脂フィルムは、ポリエチレンフィルムであることを特徴とする請求項１乃至４のうち何れか１の請求項に記載の表皮一体発泡成形品。   The skin-integrated foam-molded product according to any one of claims 1 to 4, wherein the resin film is a polyethylene film.
JP2012266052A 2012-12-05 2012-12-05 Skin integral foam formed product Pending JP2014110833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012266052A JP2014110833A (en) 2012-12-05 2012-12-05 Skin integral foam formed product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012266052A JP2014110833A (en) 2012-12-05 2012-12-05 Skin integral foam formed product

Publications (1)

Publication Number Publication Date
JP2014110833A true JP2014110833A (en) 2014-06-19

Family

ID=51168507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012266052A Pending JP2014110833A (en) 2012-12-05 2012-12-05 Skin integral foam formed product

Country Status (1)

Country Link
JP (1) JP2014110833A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020110948A (en) * 2019-01-09 2020-07-27 株式会社イノアック技術研究所 Skin-integrated foam-molded product and manufacturing method thereof
JP2020125081A (en) * 2019-02-06 2020-08-20 株式会社タチエス Vehicular headrest
JP7030174B1 (en) 2020-11-20 2022-03-04 日本発條株式会社 Seat covers, seat cover sewing methods and vehicle seats

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009051127A (en) * 2007-08-28 2009-03-12 Toyo Tire & Rubber Co Ltd Manufacturing method of foamed molded article
JP2010022402A (en) * 2008-07-15 2010-02-04 Achilles Corp Sewing structure for skin-integrated foam forming skin material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009051127A (en) * 2007-08-28 2009-03-12 Toyo Tire & Rubber Co Ltd Manufacturing method of foamed molded article
JP2010022402A (en) * 2008-07-15 2010-02-04 Achilles Corp Sewing structure for skin-integrated foam forming skin material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020110948A (en) * 2019-01-09 2020-07-27 株式会社イノアック技術研究所 Skin-integrated foam-molded product and manufacturing method thereof
JP7271184B2 (en) 2019-01-09 2023-05-11 株式会社イノアック技術研究所 Skin-in-one foam molded product and manufacturing method thereof
JP2020125081A (en) * 2019-02-06 2020-08-20 株式会社タチエス Vehicular headrest
US11072268B2 (en) 2019-02-06 2021-07-27 Tachi-S Co., Ltd. Head-rest of a car seat
JP7051242B2 (en) 2019-02-06 2022-04-11 株式会社タチエス Vehicle headrest
JP7030174B1 (en) 2020-11-20 2022-03-04 日本発條株式会社 Seat covers, seat cover sewing methods and vehicle seats
JP2022082014A (en) * 2020-11-20 2022-06-01 日本発條株式会社 Seat cover, seat cover sewing method and vehicular seat

Similar Documents

Publication Publication Date Title
US8877317B2 (en) Foam filled panel with sealed decorative stitching and process for manufacture thereof
TWI682731B (en) Moisture-permeable waterproof shoes with upright velvet inner sleeve
JP6339694B2 (en) Method for manufacturing an element having a cover and such an element
JP6278566B2 (en) Skin structure of sheet with wadding material and method for manufacturing skin of sheet with wadding material
US20150189952A1 (en) Shoe
JP6094323B2 (en) Vehicle seat
JP6180339B2 (en) Skin structure of sheet with wadding material and method for sewing skin of sheet with wadding material
JP2014110833A (en) Skin integral foam formed product
JP2016120844A (en) Vehicle seat and manufacturing method of the same
JP2001246186A (en) Skin material for foaming integrally with skin and product integrally foaming with skin
US20170305317A1 (en) Vehicle seat
JP2018140691A (en) Headrest for vehicle seat
JP5398187B2 (en) Sewing structure of skin material for skin integral foam molding
JP2017079923A (en) Sewing method for trim cover of vehicle seat, and vehicle seat using the method
JP7013328B2 (en) Seat
JP4674818B2 (en) 3D mask
JP5562620B2 (en) Manufacturing method of headrest
JP5356844B2 (en) Covering skin
JP5439542B2 (en) Waterproof shoes
JP5736576B2 (en) Skin integrated foam molding headrest and method of manufacturing the same
JP7408473B2 (en) Manufacturing method for vehicle seats and trim covers
JPH0318825B2 (en)
JP3185435U (en) Skin integrated foam molding armrest
JP4049875B2 (en) Headrest skin and method for producing the same
JP7034117B2 (en) Vehicle seat assembly with aesthetic trim cover assembly

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150918

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160729

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160803

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160923

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20170118