JP2004033556A - Skin integrated foam - Google Patents

Skin integrated foam Download PDF

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Publication number
JP2004033556A
JP2004033556A JP2002196229A JP2002196229A JP2004033556A JP 2004033556 A JP2004033556 A JP 2004033556A JP 2002196229 A JP2002196229 A JP 2002196229A JP 2002196229 A JP2002196229 A JP 2002196229A JP 2004033556 A JP2004033556 A JP 2004033556A
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JP
Japan
Prior art keywords
skin
foam
thread
needle
suturing
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
JP2002196229A
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Japanese (ja)
Inventor
Masae Chihaya
千早 正栄
Toyoharu Tensho
天勝 豊晴
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.)
Johnson Controls Automotive Systems KK
Original Assignee
Johnson Controls Automotive Systems KK
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 Johnson Controls Automotive Systems KK filed Critical Johnson Controls Automotive Systems KK
Priority to JP2002196229A priority Critical patent/JP2004033556A/en
Publication of JP2004033556A publication Critical patent/JP2004033556A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a skin integrated foam capable of preventing liquid leakage from sutured part without increasing the number of process. <P>SOLUTION: For the skin integrated foam 10 manufactured by forming a sack-shaped skin 11 by stitching skin component pieces 11a, 11b, 11c, and 11d together, and foamed by injecting raw liquid for the foam in the the skin 11, the skin 11 is formed by stitching the skin component pieces 11a, 11b, 11c, and 11d together by lock stitch sewing with two needles 22, 23 arranged along a seam and three threads. By the above, as a pitch d2 of the seam is contracted, the leakage of liquid from the stitch part is prevented without sticking any waterproof tape as before. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、表皮構成片を縫合して袋状の表皮を形成しこの袋状の表皮内に発泡体原液を注入して発泡させてなる表皮一体発泡体に関する。
【0002】
【従来の技術】
図16は従来の表皮一体発泡体としてのヘッドレストを示すものである。ヘッドレスト100は、複数の表皮構成片101a,101b,101c,101d・・を本縫いにより縫合して袋状の表皮101を形成し、この表皮101内に開口部104から発泡体102の原液を注入して発泡させて製造したものである。なお、符号103はフレームを示す。
【0003】
この種の表皮一体発泡体100では、発泡工程時の発泡体102の自己接着性により表皮101と発泡体102とが接着一体化しているため、後から表皮101を被覆する作業が不要となるだけでなく、表皮101が発泡体102から浮き上がって皺にならずに済む。
【0004】
【発明が解決しようとする課題】
しかしながら、前記従来技術にあっては、縫合部位Aの縫い目Bと縫い目Bとの間において表皮構成片101a、101bの間に隙間が生じるおそれがあるため(図17参照)、この隙間から発泡体102の原液が液漏れしてしないように、縫合部位A、A、A、・・に防水テープ106を貼設している。そのため、作業工数が多くなり、経済性に欠ける。また、縫合前に縫合部位Aに予め防水テープを貼設しておく場合や、縫合後にさらに縫合部位Aを接着剤で接着する場合などもあるが、いずれも作業工数が多くなり、経済性に欠けることとなる。
【0005】
本発明は、このような従来技術をもとに為されたもので、作業工数を追加することなく、表皮の縫合部位からの液漏れを防止できる表皮一体発泡体の提供を目的とする。
【0006】
【課題を解決するための手段】
請求項1記載の発明にあっては、表皮構成片を縫合して袋状の表皮を形成し、この袋状の表皮内に発泡体原液を注入して発泡させてなる表皮一体発泡体において、
2以上のN本の針が縫い目方向にそって配列されたN本針N+1本糸の本縫いにより、前記表皮構成片を縫合して前記表皮を形成してあることを特徴とするものである。
【0007】
この場合、縫い目と縫い目との間の間隔が詰まるため、縫い目と縫い目との間の隙間から液漏れするようなことを防止できる。これにより、従来のように縫合部位に防水テープを貼設しなくても、縫合部位からの液漏れを防止できる。つまり、作業工数を追加することなく縫合部位からの液漏れを防止できる。
【0008】
請求項2記載の発明にあっては、請求項1記載の表皮一体発泡体において、縫い目ピッチが、送り出しピッチの1/Nであることを特徴とするものである。
【0009】
この場合、一の送り出しピッチの中に送り出し方向にそってN個の縫い目が等間隔に形成される。そのため、無駄なく且つむらなく縫い目が形成されるので、より確実に縫合部位からの液漏を防止できる。
【0010】
【発明の実施の形態】
以下、本発明の一実施形態について図面を参照しつつ説明する。
【0011】
図1は表皮一体発泡体としてのヘッドレストの一実施形態を示す斜視図、図2は図1とは異なる角度から見た同ヘッドレストの斜視図、図3は同ヘッドレストの断面図、図4は同ヘッドレストの表皮の縫合に使用する2本針3本糸本縫いミシンの要部斜視図、図5は同2本針3本糸本縫いミシンの2本針近傍の正面図、図6は同2本針3本糸本縫いミシンの2本針近傍の側面図、図7〜図14は同2本針3本糸本縫いミシンによる縫製工程の説明図、図15は同2本針3本糸本縫いミシンによる縫合部位を示す図であって分図aは側面図であり分図bは上面図であり分図cは下面図である。
【0012】
この実施形態の「表皮一体発泡体」としてのヘッドレスト10は、図1〜図3に示すように、表皮11と発泡体12とを備え、袋状に形成された表皮11内に発泡体12原液を注入して発泡させ、該発泡体12原液の自己接着性により表皮11と発泡体12とが接着一体化されたものである。
【0013】
表皮11は、例えば布などの素材からなる表皮構成片11a、11b、11c、11dを縫合することで袋状に形成されている。
【0014】
この表皮11内には、フレーム13が部分的に収容される。このフレーム13は、一対のサイドフレーム13a、13aとアッパーフレーム13bとからU字状に形成されてなり、そのサイドフレーム13a、13aの下部が開口部15を通じて表皮11から突設される。この状態で表皮11内に発泡体12原液が注入されることで、フレーム13は表皮11と同様に発泡体12と一体化し、サイドフレーム13a、13aの表皮11から突出する部位が、図示せぬシートバックの肩部に出没自在に保持されるヘッドレストステーとなる。
【0015】
フレーム13は表皮11の開口部14から挿入されるようになっていて、開口部14は発泡体原液注入用にも使用される。この開口部14は、発泡時に発泡体12が漏洩しないように、その周縁が内側に折り返されていて発泡圧で互いに密着するようになっている。
【0016】
上記ヘッドレスト10は、以下のように製造される。
【0017】
縫合工程
まず、所定形状に裁断された複数の表皮構成片11a、11b、11c、11dを後述す2本針3本糸ミシン20により縫合し、袋状の表皮11を形成する。
【0018】
発泡工程
次に、袋状の表皮11を所定の金型内に配置する。このとき、表皮11内にフレーム13を部分的に収容し、開口部15からサイドフレーム13a、13aを突出させた状態としておく。この状態で、開口部14から表皮11内に発泡体12原液を注入して発泡させる。表皮11は、発泡圧によって皺の無い適度な緊張状態に膨らむとともに、発泡体12の自己接着性により該発泡体12と一体化し、求めるヘッドレスト10が完成する。
【0019】
ここで、この実施形態では表皮11の縫合構造(縫合工程)に特徴があり、以下、詳しく説明する。
【0020】
図4〜図6は表皮11の縫合に用いるミシン20である。このミシン20は2本針3本糸本縫いミシンであり、2本の針22、23が、送り歯30による生地の送り出し方向(縫い目方向)に沿って配列されている。この実施形態では、図示せぬプーリーの回転に連動して上下動する針棒21に2本の針22、23が保持されている。
【0021】
この二本の針22、23の間隔d2は、生地の送り方向(縫い目方向)に沿って生地の送り出しピッチd1の1/2に設定されている。これにより、縫い目Dと縫い目Dの間隔(縫い目ピッチd2)が1/2に狭まるため(図15a参照)、表皮11内に発泡体12原液を注入した際に、縫合部位Cからの液漏れを確実に防止できるようになっている。
【0022】
ここで、各針22、23に挿通される上糸24、25のいずれも目飛びがないような工夫も為されている。つまり、下糸26を巻いた図示せぬボビンを収容するボビンケース28のカマ剣先29で、二本の針22、23にガイドされる上糸24、25を確実に絡めとれるように、カマ剣先29の回転軌跡に沿うように二本の針22、23の位置が設定されている。この実施形態では、ボビンケース28が垂直軸を中心に回転するように配置されているため、該二本の針22、23は縫い目方向に沿ってほぼ一直線上に配置されるが真に一直線上ではなく図5に示すように若干ズレた位置に配置されている。また、二本の針22、23は上下方向に段違いに配置されている。なお、図中符号31は押さえ棒、符号32は押さえ金、符号33は針板である。
【0023】
この二本針三本糸本縫いミシン20による縫い目Dは、図7〜図14に示すように形成される。なお、以下の説明では、表皮構成片11aと表皮構成片11bとの縫合部位Cについて説明するが、その他の表皮構成片同士の縫合部位Cについてもこの二本針三本糸本縫いミシン20により同様の縫い目Dが形成される。
【0024】
まず、図8に示すように各針22、23によって、上糸24、25が表皮構成片11a、11bに貫通されて、ボビンケース28のカマ剣先29ですくえるところまで運ばれる。
【0025】
針22、23が上昇しはじめると図9に示すように上糸24、25がたるみ、このループ状となった2本の上糸24、25が図10に示すように回転するボビンケース28のカマ剣先29ですくいとられる。
【0026】
2本の上糸24、25は、図10→図11→図12に示すようにカマ剣先29によって下糸26の入ったボビンケース28の外周を回り、下糸26と絡みあう。
【0027】
図12に示すように下糸26と絡み合った二本の上糸24、25は、図13に示すように図せぬ天秤によって引き上げられて結び目が形成される。最後に図14に示すように表皮構成片11a、11bが送られ、図15に示すような連続した縫い目Dが形成されていく。
【0028】
このように形成された縫い目Dのピッチd2は、図15に示すように送り出しピッチd1の1/2の詰まるため、縫合部位Cに防水テープなどを貼ることなく、表皮11内に発泡体12原液を注入した際に、縫合部位Cからの液漏れを防止できる。
【0029】
なお、上述の実施形態では、二本の針22、23の間隔d2は生地の送り方向(縫い目方向)に沿って生地の送りピッチd1を等分するように設定されているが、二本の針22、23の間隔が少なくとも送りピッチd1より短い間隔で配置されていれば、縫い目ピッチが詰まる作用効果が得られるので、本発明にあってはこのような構成も含むものとする。
【0030】
また、上述の実施形態では、縫合部位Cは2本針3本糸の本縫い構造であるが、本発明にあってはこれに限られず、N本の針が縫い目方向にそって配列されたN本針N+1本糸本縫い構造(N≧2)も含まれる。
【0031】
また、上述の実施形態では、表皮一体発泡体としてヘッドレスト10を例としたが、表皮一体発泡体であれば、例えばアームレスト、シートクッションなどのその他の車両用クッション部材に加え、あらゆるクッション部材も適用範囲とする。
【0032】
【発明の効果】
請求項1記載の発明によれば、表皮構成片を縫合して袋状の表皮を形成し、この袋状の表皮内に発泡体原液を注入して発泡させてなる表皮一体発泡体において、2以上のN本の針が縫い目方向にそって配列されたN本針N+1本糸の本縫いにより、前記表皮構成片を縫合して前記表皮を形成してあることを特徴とするため、縫い目と縫い目の間隔が詰まる。このため、縫い目と縫い目との間に隙間が生じにくく、液漏れするようなことを防止できる。
【0033】
これにより、従来のように縫合部位に防水テープを貼設しなくても、つまり、作業工数を追加することなく、縫合部位からの液漏れを防止できる。
【0034】
請求項2記載の発明によれば、請求項1記載の発明の効果に加え、縫い目ピッチが、送り出しピッチの1/Nであることを特徴とするため、一つの送り出しピッチの中に送り出し方向にそってN個の縫い目が等間隔に形成される。そのため、無駄なく且つむらなく縫い目が形成されるので、より確実に縫合部位からの液漏を防止できる。
【図面の簡単な説明】
【図1】図1は本発明にかかる表皮一体発泡体としてのヘッドレストの斜視図。
【図2】図2は図1とは異なる角度から見た同ヘッドレストの斜視図。
【図3】図3は同ヘッドレストの断面図。
【図4】図4は同ヘッドレストの表皮の縫合に使用する2本針3本糸ミシンの要部斜視図。
【図5】図5は同2本針3本糸本縫いミシンの針棒近傍の正面図。
【図6】図6は同2本針3本糸本縫いミシンの針棒近傍の側面図。
【図7】図7は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図8】図8は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図9】図9は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図10】図10は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図11】図11は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図12】図12は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図13】図13は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図14】図14は同2本針3本糸本縫いミシンによる縫合工程の説明図。
【図15】図15は同2本針3本糸本縫いミシンにより形成される縫い目を示す図であって、分図aは側面図、分図bは上面図、分図cは下面図。
【図16】図16は従来の表皮一体発泡体(ヘッドレスト)の示す断面図。
【図17】図17は従来の表皮一体発泡体(ヘッドレスト)の表皮の縫合部位を示す側面図。
【符号の説明】
10  ヘッドレスト(表皮一体発泡体)
11  表皮
11a、11b、11c、11d  表皮構成片
12  発泡体
22  針
23  針
24  上糸(糸)
25  上糸(糸)
26  下糸(糸)
C   縫合部
D   縫い目
d1  送り出しピッチ
d2  縫い目ピッチ(針の間隔)
[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a skin-integrated foam formed by suturing skin constituent pieces to form a bag-shaped skin, and injecting an undiluted foam solution into the bag-shaped skin to cause foaming.
[0002]
[Prior art]
FIG. 16 shows a conventional headrest as an integral skin foam. The headrest 100 is formed by suturing a plurality of skin constituent pieces 101a, 101b, 101c, 101d,. And foamed. Note that reference numeral 103 indicates a frame.
[0003]
In this kind of skin-integrated foam 100, the skin 101 and the foam 102 are bonded and integrated due to the self-adhesiveness of the foam 102 during the foaming step, so that the work of coating the skin 101 later is not necessary. Instead, the skin 101 does not need to be lifted from the foam 102 and wrinkled.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional technology, a gap may be formed between the seam component pieces 101a and 101b between the seam B and the seam B at the seam portion A (see FIG. 17). In order to prevent the undiluted solution from leaking, a waterproof tape 106 is attached to the suturing sites A, A, A,. For this reason, the number of work steps increases, and the economy is lacking. Further, there are cases where a waterproof tape is pasted to the sewn site A before suturing, and cases where the sewn site A is further adhered with an adhesive after suturing. Will be missing.
[0005]
The present invention has been made based on such a conventional technique, and an object of the present invention is to provide an integral skin foam capable of preventing a liquid from leaking from a suture portion of an epidermis without adding work steps.
[0006]
[Means for Solving the Problems]
In the invention according to claim 1, in a skin-integrated foam obtained by suturing skin constituent pieces to form a bag-shaped skin and injecting a foam stock solution into the bag-shaped skin to cause foaming,
The above-mentioned epidermis constituent pieces are sewn to form the epidermis by means of N-needle N + 1 mono-thread stitching in which two or more N needles are arranged along the stitch direction. .
[0007]
In this case, since the gap between the stitches is narrowed, it is possible to prevent the liquid from leaking from the gap between the stitches. This makes it possible to prevent liquid leakage from the suturing site without attaching a waterproof tape to the suturing site as in the related art. That is, it is possible to prevent the liquid from leaking from the suturing site without adding the number of operation steps.
[0008]
According to a second aspect of the present invention, in the skin-integrated foam according to the first aspect, the stitch pitch is 1 / N of the feed pitch.
[0009]
In this case, N stitches are formed at equal intervals along one sending pitch in one sending pitch. Therefore, the stitches are formed without waste and evenly, so that the liquid leakage from the stitched portion can be more reliably prevented.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0011]
1 is a perspective view showing an embodiment of a headrest as an integral skin foam, FIG. 2 is a perspective view of the headrest seen from an angle different from FIG. 1, FIG. 3 is a cross-sectional view of the headrest, and FIG. Perspective view of a main part of a two-needle, three-thread, lockstitch sewing machine used for sewing the skin of the headrest, FIG. 5 is a front view of the vicinity of the two-needle of the two-needle, three-thread lockstitch machine, and FIG. 7 to 14 are explanatory views of a sewing process using the two-needle, three-thread, single-stitch sewing machine, and FIG. 15 is a two-needle, three-thread, same-stitch sewing machine. FIG. 4 is a view showing a sewn portion by the lockstitch sewing machine, wherein a separation diagram a is a side view, a separation diagram b is a top view, and a separation diagram c is a bottom view.
[0012]
As shown in FIGS. 1 to 3, the headrest 10 as the “skin-integrated foam” of this embodiment includes a skin 11 and a foam 12, and a foam 12 undiluted solution is formed in the bag-shaped skin 11. Is injected and foamed, and the skin 11 and the foam 12 are bonded and integrated by the self-adhesive property of the foam 12 stock solution.
[0013]
The skin 11 is formed in a bag shape by sewing the skin constituent pieces 11a, 11b, 11c and 11d made of a material such as cloth.
[0014]
The frame 13 is partially accommodated in the outer skin 11. The frame 13 is formed in a U-shape from a pair of side frames 13 a, 13 a and an upper frame 13 b, and the lower portions of the side frames 13 a, 13 a project from the skin 11 through the opening 15. In this state, by injecting the foam 12 undiluted solution into the skin 11, the frame 13 is integrated with the foam 12 like the skin 11, and the portions of the side frames 13a, 13a projecting from the skin 11 are not shown. It becomes a headrest stay that is held on the shoulder of the seat back so as to be freely retractable.
[0015]
The frame 13 is inserted through an opening 14 of the epidermis 11, and the opening 14 is also used for injecting a foam concentrate. In order to prevent the foam 12 from leaking at the time of foaming, the opening 14 has its peripheral edge turned inward so as to be in close contact with each other by the foaming pressure.
[0016]
The headrest 10 is manufactured as follows.
[0017]
Suturing step First, a plurality of skin constituent pieces 11a, 11b, 11c, 11d cut into a predetermined shape are stitched by a two-needle, three-thread sewing machine 20, which will be described later, to form a bag-shaped skin 11.
[0018]
Foaming Step Next, the bag-shaped outer skin 11 is placed in a predetermined mold. At this time, the frame 13 is partially accommodated in the skin 11, and the side frames 13a, 13a are made to protrude from the opening 15. In this state, the undiluted foam 12 is injected into the epidermis 11 from the opening 14 and foamed. The skin 11 expands to an appropriate tension state without wrinkles due to the foaming pressure, and is integrated with the foam 12 by the self-adhesiveness of the foam 12, thereby completing the required headrest 10.
[0019]
Here, this embodiment is characterized by a suturing structure (suturing step) of the epidermis 11, and will be described in detail below.
[0020]
4 to 6 show a sewing machine 20 used for suturing the epidermis 11. The sewing machine 20 is a two-needle, three-thread, lockstitch sewing machine, in which two needles 22 and 23 are arranged in the direction in which the feed dog 30 feeds the fabric (seam direction). In this embodiment, two needles 22 and 23 are held on a needle bar 21 which moves up and down in conjunction with the rotation of a pulley (not shown).
[0021]
The distance d2 between the two needles 22 and 23 is set to 1/2 of the cloth feeding pitch d1 along the cloth feeding direction (seam direction). As a result, the interval between the seams D (seam pitch d2) is reduced to 1 / (see FIG. 15A). Therefore, when the undiluted foam 12 is injected into the epidermis 11, the leakage from the stitched portion C is prevented. It can be prevented reliably.
[0022]
Here, it is also devised that neither of the upper threads 24, 25 inserted into the respective needles 22, 23 has skipping. In other words, the upper thread 24, 25 guided by the two needles 22, 23 is securely entangled with the upper knife 24 of the bobbin case 28 that accommodates a bobbin (not shown) wound with the lower thread 26. The positions of the two needles 22 and 23 are set so as to follow the rotation locus of 29. In this embodiment, since the bobbin case 28 is arranged so as to rotate about a vertical axis, the two needles 22 and 23 are arranged substantially in a straight line along the stitching direction, but are truly aligned in a straight line. Instead, they are arranged at slightly shifted positions as shown in FIG. Further, the two needles 22 and 23 are arranged stepwise in the vertical direction. In the drawing, reference numeral 31 denotes a presser bar, reference numeral 32 denotes a presser bar, and reference numeral 33 denotes a needle plate.
[0023]
The stitches D formed by the two-needle, three-thread, lockstitch sewing machine 20 are formed as shown in FIGS. In the following description, the stitched portion C between the skin constituent pieces 11a and 11b will be described. However, the stitched portion C between the other skin constituent pieces is also formed by the two-needle three-thread lockstitch machine 20. A similar seam D is formed.
[0024]
First, as shown in FIG. 8, the needles 22, 23 penetrate the upper threads 24, 25 through the skin constituent pieces 11 a, 11 b, and are carried to the point where they can be picked up by the hook tip 29 of the bobbin case 28.
[0025]
When the needles 22 and 23 begin to rise, the upper threads 24 and 25 are slackened as shown in FIG. 9, and the two upper threads 24 and 25 in a loop form rotate as shown in FIG. You can scoop with Kama Sword Point 29.
[0026]
As shown in FIGS. 10 → 11 → 12, the two upper threads 24, 25 are wrapped around the outer periphery of the bobbin case 28 in which the lower thread 26 has been inserted by the knives 29, and are entangled with the lower thread 26.
[0027]
As shown in FIG. 12, the two upper threads 24 and 25 entangled with the lower thread 26 are pulled up by an unillustrated balance as shown in FIG. 13 to form a knot. Finally, the skin constituent pieces 11a and 11b are fed as shown in FIG. 14, and the continuous seam D as shown in FIG. 15 is formed.
[0028]
The pitch d2 of the seam D formed in this way is 1 / of the feeding pitch d1 as shown in FIG. 15, so that the foam 12 undiluted solution in the epidermis 11 without attaching a waterproof tape or the like to the stitching site C. Can be prevented from leaking from the suturing site C when the is injected.
[0029]
In the above-described embodiment, the interval d2 between the two needles 22 and 23 is set so as to equally divide the cloth feed pitch d1 along the cloth feed direction (seam direction). If the interval between the needles 22 and 23 is at least shorter than the feed pitch d1, an effect of closing the stitch pitch can be obtained, and the present invention includes such a configuration.
[0030]
Further, in the above-described embodiment, the stitching portion C has a double-needle, triple-thread, main-stitching structure. However, the present invention is not limited to this, and N needles are arranged along the stitch direction. An N-needle N + 1 thread-lock stitch structure (N ≧ 2) is also included.
[0031]
Further, in the above-described embodiment, the headrest 10 is taken as an example of the skin-integrated foam. However, if it is a skin-integrated foam, any cushion member may be used in addition to other vehicle cushion members such as an armrest and a seat cushion. Range.
[0032]
【The invention's effect】
According to the first aspect of the present invention, in a skin-integrated foam obtained by suturing skin constituent pieces to form a bag-shaped skin and injecting a foam solution into the bag-shaped skin and foaming the same. The above-mentioned N pieces of needles are arranged along the direction of the seam, and the above-mentioned skin constituent pieces are sewn to form the above-mentioned skin by the main sewing of the (N + 1) needles. Stitches are tightly spaced. For this reason, a gap is hardly generated between the stitches, so that liquid leakage can be prevented.
[0033]
As a result, it is possible to prevent liquid leakage from the suturing site without attaching a waterproof tape to the suturing site as in the related art, that is, without adding work steps.
[0034]
According to the second aspect of the invention, in addition to the effect of the first aspect, the stitch pitch is 1 / N of the delivery pitch. Then, N seams are formed at equal intervals. Therefore, the stitches are formed without waste and evenly, so that the liquid leakage from the stitched portion can be more reliably prevented.
[Brief description of the drawings]
FIG. 1 is a perspective view of a headrest as an integral skin foam according to the present invention.
FIG. 2 is a perspective view of the headrest viewed from an angle different from that of FIG. 1;
FIG. 3 is a sectional view of the headrest.
FIG. 4 is a perspective view of an essential part of a two-needle, three-thread sewing machine used for suturing the skin of the headrest.
FIG. 5 is a front view of the vicinity of a needle bar of the two-needle, three-thread, lockstitch sewing machine.
FIG. 6 is a side view near the needle bar of the two-needle, three-thread, lockstitch sewing machine.
FIG. 7 is an explanatory view of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 8 is an explanatory diagram of a suturing process using the same two-needle, three-thread, lockstitch machine.
FIG. 9 is an explanatory view of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 10 is an explanatory view of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 11 is an explanatory diagram of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 12 is an explanatory view of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 13 is an explanatory view of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 14 is an explanatory view of a suturing process using the same two-needle, three-thread, lockstitch sewing machine.
FIG. 15 is a view showing a stitch formed by the two-needle, three-thread, lockstitch sewing machine; FIG. 15A is a side view, FIG. 15B is a top view, and FIG.
FIG. 16 is a cross-sectional view showing a conventional skin integral foam (headrest).
FIG. 17 is a side view showing a suture portion of the epidermis of a conventional epidermis-integrated foam (headrest).
[Explanation of symbols]
10 Headrest (skin integral foam)
11 Skin 11a, 11b, 11c, 11d Skin constituent piece 12 Foam 22 Needle 23 Needle 24 Upper thread (thread)
25 Upper thread (thread)
26 Lower thread (thread)
C Stitch part D Stitch d1 Feeding pitch d2 Stitch pitch (needle spacing)

Claims (2)

表皮構成片を縫合して袋状の表皮を形成し、この袋状の表皮内に発泡体原液を注入して発泡させてなる表皮一体発泡体において、
2以上のN本の針が縫い目方向にそって配列されたN本針N+1本糸の本縫いにより、前記表皮構成片を縫合して前記表皮を形成してあることを特徴とする表皮一体発泡体。
A skin-integrated foam formed by suturing the skin constituent pieces to form a bag-shaped skin, and injecting and foaming an undiluted foam solution into the bag-shaped skin,
A skin integral foam wherein the skin is formed by suturing the skin constituent pieces by means of the main sewing of N + 1 needles in which two or more N needles are arranged along the stitch direction. body.
請求項1記載の表皮一体発泡体において、
縫い目ピッチが、送り出しピッチの1/Nであることを特徴とする表皮一体発泡体。
The skin-integrated foam according to claim 1,
A skin integral foam, wherein the seam pitch is 1 / N of the feed pitch.
JP2002196229A 2002-07-04 2002-07-04 Skin integrated foam Pending JP2004033556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002196229A JP2004033556A (en) 2002-07-04 2002-07-04 Skin integrated foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002196229A JP2004033556A (en) 2002-07-04 2002-07-04 Skin integrated foam

Publications (1)

Publication Number Publication Date
JP2004033556A true JP2004033556A (en) 2004-02-05

Family

ID=31704381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002196229A Pending JP2004033556A (en) 2002-07-04 2002-07-04 Skin integrated foam

Country Status (1)

Country Link
JP (1) JP2004033556A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148742A (en) * 2006-12-14 2008-07-03 Tachi S Co Ltd Upholstery for holed headrest
US8482077B2 (en) 2010-05-07 2013-07-09 Samsung Electronics Co., Ltd. Semiconductor devices and methods for fabricating the same
JP2015002762A (en) * 2013-06-19 2015-01-08 株式会社タチエス Skin-integrated foam product for vehicle and production method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148742A (en) * 2006-12-14 2008-07-03 Tachi S Co Ltd Upholstery for holed headrest
US8482077B2 (en) 2010-05-07 2013-07-09 Samsung Electronics Co., Ltd. Semiconductor devices and methods for fabricating the same
JP2015002762A (en) * 2013-06-19 2015-01-08 株式会社タチエス Skin-integrated foam product for vehicle and production method thereof

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