Fender liner and process for producing the same

B - Operations – Transporting – 62 – D

Patent

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Details

B62D 25/18 (2006.01)

Patent

CA 2689222

A fender liner (20) to be fitted to an automobile wheel house (12), comprising a breathable base material layer (30) produced by forming a fiber assembly into the shape along the wheel house (12) and a protective layer (40) of waterproof material superimposed on the surface (30a) of the base material layer (30) opposite to the side facing the wheel house (12), wherein the protective layer (40) is provided with multiple through-holes (42) for flow of air through the protective layer (40) to the surface (30a) of the base material layer (30) on which the protective layer is superimposed. The fender liner (20) is produced through a process comprising superimposing a waterproof thermoplastic filmlike material (46) on one surface of a breathable sheetlike material (36) of fiber assembly, passing multiple hot needles (134) through the filmlike material (46) from the side of the filmlike material by the use of a perforator (130) equipped with multiple hot needles (134) to thereby form multiple through-holes (47), and while heating the filmlike material (46) and the sheetlike material (36) in the state of being superimposed on each other, forming the same into the shape along the wheel house (12).

L'invention concerne une garniture d'aile (20) devant être fixée sur un passage de roue (12) d'un véhicule, comprenant une couche de matériau de base ventilé (30) produite par la formation d'un assemblage de fibres dans le moulage le long du passage de roue (12) et une couche de protection (40) de matériau imperméable superposé sur la surface (30a) de la couche de matériau de base (30) opposée au côté face au passage de roue (12). La couche de protection (40) comprend un grand nombre de trous débouchants (42) pour le flux d'air traversant la couche de protection (40) vers la surface (30a) de la couche de matériau de base (30) sur laquelle est superposée la couche de protection. La garniture d'aile (20) est produite par un procédé consistant à superposer un matériau (46) imperméable thermoplastique sous forme de pellicule sur une surface d'un matériau (36) ventilé sous forme de feuille d'un assemblage de fibres, à faire passer plusieurs pointes chaudes (134) par le matériau (46) sous forme de pellicule depuis le côté du matériau sous forme de pellicule à l'aide d'un perforateur (130) doté de plusieurs pointes chaudes (134) permettant de former ainsi plusieurs trous débouchants (47), et, tout en chauffant le matériau (46) sous forme de pellicule et le matériau (36) sous forme de feuille superposés l'un sur l'autre, à former ces derniers dans le moulage le long du passage de roue (12).

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