PROBLEM TO BE SOLVED: To form a stitch pattern by using only a needle thread, to stably form a loop portion of a thread which constitutes the stitch pattern at only a side opposite to a thread supply side with respect to a sewing needle at a back side of a base material by a simple structure, and to fix the loop portion to a rear surface side of the base material while avoiding the entanglement and breakage of the thread.SOLUTION: In a manufacturing method of an interior part 10, the interior part comprises a receiving jig 6 and a thread sewing device 5 having a sewing needle 51, and is composed of a base material and a membrane material 2. The manufacturing method forms a stitch pattern 3 at a surface of the membrane material by fixing a loop portion 32 of a thread which is formed at a back face side of the base material to the back face side of the base material when making the thread 31 which is engaged with a thread hole 511 of the sewing needle penetrate a surface side of the membrane material up to the back face side of the base material, and drawing it back. When a tip 51T of the sewing needle is dawn back from a height of a penetration terminal end, the thread which is supplied to the sewing needle is applied with a tension load T2 from a thread supply source, only the loop portion which is formed at the thread supply side is erased, and the loop portion 32 which is formed at a side opposite to the thread supply side is fixed to the back face side of the base material.SELECTED DRAWING: Figure 3

    【課題】上糸だけでステッチ模様を形成でき、簡単な構造で安定して、ステッチ模様を構成する糸のループ部分を基材の裏側で縫い針に対して糸供給側と反対側のみに形成でき、糸ほつれ及び糸切れを回避しつつ、当該ループ部分を基材の裏面側に固定できる。【解決手段】受け治具6と縫い針51を有する糸縫製装置5とを備え、基材と表皮材2とからなり、縫い針の糸孔511に係合された糸31を表皮材の表面側から基材の裏面側まで縫い針と共に挿通して引き戻す際に、基材の裏面側に形成される糸のループ部分32を基材の裏面側に固定して表皮材の表面にステッチ模様3を形成する内装部品10の製造方法である。縫い針の先端部51Tが挿通終端の高さから引き戻されるとき、縫い針に供給する糸に糸供給元から引張荷重T2をかけて、糸供給側に形成されるループ部分のみを消去させ、糸供給側と反対側に形成されたループ部分32を基材の裏面側に固定する。【選択図】図3


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    Title :

    MANUFACTURING METHOD OF INTERIOR PART


    Additional title:

    内装部品の製造方法


    Contributors:
    KATO KENJI (author) / MAEDA HIROSHI (author) / YAMADA HIROKI (author) / MORINAGA YUJI (author)

    Publication date :

    2017-04-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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