FENDER LINER AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a vehicle fender liner capable of: exerting icing prevention properties from both front and back faces of the fender liner; showing high sound absorption properties; and being easily molded in a three-dimensional shape.SOLUTION: A fender liner used for a vehicle exte...

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Bibliographische Detailangaben
Hauptverfasser:	TANIGAWA MASAYUKI, MATSUO KYOTA, UEHARA MASAHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MOTOR VEHICLES MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TRAILERS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a vehicle fender liner capable of: exerting icing prevention properties from both front and back faces of the fender liner; showing high sound absorption properties; and being easily molded in a three-dimensional shape.SOLUTION: A fender liner used for a vehicle exterior sound absorption material includes a base material layer 11 having a sound absorption function. The base material layer 11 is produced by forming a sheet made of a fiber web in which main fiber 12 and binder fiber 13 having a lower melting point than the main fiber 12 are entangled. On the sheet-shaped web, a first protective film 15 made of a low density polyethylene (LDPE) resin is integrally formed, and on top of the other side of the sheet, a second protective film 17 made of a thermoplastic resin film is placed before applying heat and pressure by using a plate-shaped press die, forming a laminate sheet in which the air-impermeable first protective film 15 and the air-permeable/liquid-impermeable second protective film 17 are integrally formed on the base material layer 11. Then the laminate sheet is heat press molded by using a molding die to form a three-dimensional shape of a fender liner 10. 【課題】フェンダーライナの正面及び背面の両面からの着氷防止性を達成できると共に高い吸音性能を発揮でき、且つ立体的な形状に容易に成形することができる車両用フェンダーライナを提供する。【解決手段】車両用の外装用吸音材としてのフェンダーライナは、吸音作用を有する基材層１１を備えている。基材層１１は、主繊維１２とその主繊維１２よりも低い融点を有するバインダー繊維１３とを交絡させた繊維ウェブからなるシートを製造し、このシート状のウェブの上にＬＤＰＥ樹脂からなる第１保護膜１５を一体的に設け、反対側に熱可塑性樹脂フィルムからなる第２保護膜１７を重ねてから、平板状のプレス金型で加熱・加圧して、非通気性の第１保護膜１５及び通気不透液性の第２保護膜１７が基材層１１に一体に形成された積層シートを作成し、この積層シートを成形金型での加熱プレス成形により立体的にフェンダーライナ１０の形状に成形する。【選択図】図３