Interior finishing panel for vehicle and method of manufacturing the same

Abstract

An interior finishing panel (1) for a vehicle, comprising a first wall (2) and a second wall (3) opposed to each other at an interval. The panel is formed in a hollow double wall structure having an inner rib (6) formed between the first wall (2) and the second wall (3). A skin sheet (7) with an averaged thickness of 2.0 mm or thinner is integrally laminated on the first wall (2). The skin sheet (7) is formed in a double layer structure in which a nonwoven cloth with a weight of 250 g / m<2> or less is stuck on a resin sheet, and its tensile elastic modulus at room temperature is 3500 kg / cm<2> or less. A parting line (9) and a step part (10) are formed on a peripheral wall (5) within the range of 35% of the averaged thickness of the panel from the first wall (2) side over roughly all the periphery thereof, and the end of the skin sheet (7) is melt-bonded to the peripheral wall along the step part (10). A three-dimensional pattern (8) is produced on the surface of the resin sheet forming the skin sheet (7).

Description

technical field [0001] The invention relates to a blow-molded skinned panel used as an automotive interior panel, a manufacturing method thereof, and a bonding blow-molding method. Panels with skins are interior panels for vehicles used as floor panels, trunk panels, shelves, and other covers and sheds for motor vehicle trunks. Hollow two-story wall structure. The skin sheet is formed by laminating a nonwoven fabric on a resin sheet with a three-dimensional pattern made of thermoplastic resin formed on the resin sheet. Background technique [0002] Floor panels of automobiles, trunk panels, etc., and cover panels of automobile trunks, etc., have been used in order to make the surface feel good and have a design effect, and a material such as a skin sheet such as non-woven fabric is pasted on the surface of the board ( Refer to JP-A-1-34720 and JP-2000-289095). However, with the diversification of the use methods of the trunk of a motor vehicle, etc., in addition to the ex...

AI Technical Summary

Problems solved by technology

At this time, since the rib and the hinge part are formed by welding the surface wall and the back wall into one body, there are differences in the forming conditions between the corresponding welded part, the surface wall, and the hollow part of the back wall that are not welded, resulting in the surface of the resin sheet being damaged. Concavity or unevenness in transfer performance occurs in the three-dimensional pattern appearing on the

As a result, the three-dimensional pattern has a problem of poor appearance due to partial dullness or destruction due to insufficient transfer.

[0009] In addition, the sheet with skin produced by blow molding has the problem of peeling of the skin sheet at the end of the sheet and the hinge part. In order to prevent peeling and protrusion of the skin sheet, it is necessary to roll the end of the skin sheet with a sliding mold. Countermeasures such as integrally forming the back of the feed plate, forming a wide recess from the side of the skin sheet on the hinge part to expand the bonding area, etc.

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