PROBLEM TO BE SOLVED: To provide a manufacturing method of an instrument panel having a surface coated with natural leather, with simplified manufacturing process, without unevenness or variation in the surface hardness due to impregnation of an adhesive.SOLUTION: A lower die 21 is covered with a thermoplastic urethane film 12. The thermoplastic urethane film 12 has a 100 percent modulus of 5 MPa to 9 MPa, and a thickness of 0.02 mm to 0.12 mm. Subsequently the air between the thermoplastic urethane film 12 and a front surface molding surface 33 is removed such that the thermoplastic urethane film 12 comes in close contact with the front surface molding surface 33. Subsequently the interior of a mold 20 for foam molding is sealed, and a liquid urethane raw material is injected into a molding cavity 30 from a casting tool 28, so that a base material 2 as inclusion with a foam layer 11 and the thermoplastic urethane film 12 integrated is manufactured. A skin material 5 is disposed on the surface of the base material 2 as inclusion, for completion of an instrument panel.
【課題】表面に天然皮革が貼られたインストルメントパネルを製造する方法であり、製造工程を簡略であり、且つ接着剤の含侵による凹凸や表面硬度のばらつきを無くする製造方法を提案する。【解決手段】下型21に、熱可塑性ウレタンフィルム12を被せる。熱可塑性ウレタンフィルム12は、100パーセントモジュラスが5MPa乃至9MPa、厚さが0.02mm乃至0.12mmである。その後、熱可塑性ウレタンフィルム12と表面側成形面33との間の空気を抜いて熱可塑性ウレタンフィルム12を表面側成形面33に密着させる。その後発泡成形型20内を密閉し、注型器28から液状のウレタン原料を成形キャビティ30に注入し、発泡層11と、熱可塑性ウレタンフィルム12が一体化した内包基材2を作る。内包基材2の表面に表皮材5が装着し、インストルメントパネルを完成する。【選択図】 図4
MANUFACTURING METHOD OF VEHICLE INTERIOR PART
自動車内装品の製造方法
2015-07-06
Patent
Electronic Resource
Japanese
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