Trinity Industrial Corporation

Yukihiro Goto

Tokinobu Shimada

Tadayuki Mizobe

This invention provides a method for manufacturing decorated-parts of high design-quality and reliability, since the exposed surface of the base coat-layer is not bulged, and thus the color of said coat-layer is distinct. The method for manufacturing decorated-parts of this invention comprises a base coat-layer-forming process, a surface coat-layer-forming process and a laser-decorating process. In the base coat-layer-forming process, a resin-base material of a highly light color at a lightness-level of 70 or more or a clear and colorless resin base-material is formed. In the surface coat-layer forming process, the surface coat-layer of a less-bright color at a lightness-level of 20 or less is formed on the base coat-layer. In the laser-decorating process, the first laser-processed groove penetrating the surface coat-layer and exposing partially the base coat-layer is made by irradiating the infrared laser onto such surface coat-layer, thus providing a fine decoration onto the surface of said decorated-part.

Decorated-part having a fine decoration using a laser processed groove

A method for manufacturing a decorated-part comprises a first and second base coat-layer-forming process, a surface coat-layer-forming process and a laser-decorating process. In the first base coat-layer-forming process, the first base coat-layer colored in a highly light color at a lightness-level of 70 or more is formed on the surface of the resin base-material. In the second base coat-layer-forming process, the second base coat-layerC colored in a chromatic color is formed on the first base coat-layer. In the surface coat-layer-forming process, the surface coat-layer colored in a less-bright color at a lightness-level of 20 or less is formed on the second base coat-layerC. In the laser-decorating process, the first laser-processed groove penetrating the surface coat-layer and exposing partially the second base coat-layer is made by irradiating the infrared laser onto such surface coat-layer, thus providing a fine decoration onto the surface of said decorated-part.

This invention provides a method for manufacturing a decorated part having a dynamic visual effect of a design that is drawn onto the surface of a work, thus reducing the manufacturing cost. The decorated part is manufactured by a laser-irradiating process, which involves irradiating a laser onto a decorative surface, thus forming a designhaving many laser-processed linear groovesclosely aligned in a specific direction Fon said decorative surface. Also, in the laser-irradiating process, said designis formed such that the angle &#x3b8;that is made by the specific direction Fand by the direction Fin which the laser-processed linear groovesare extending is gradually changing into the direction in which such laser-processed linear grooves are aligned.

Decorated parts having a decorative surface with a design drawn thereon

This invention provides a method for manufacturing a decorative-part of which the joint-lines bordering the laser-irradiation regions are unnoticeable, thus avoiding deterioration of the design-quality of such a decorative-part. Of this invention, the design () comprises the first-blocks () of a plurality of design-patterns () that are closely arranged with the second-blocks () of a plurality of design-patterns () that are different from those of the first-blocks (). In the laser-irradiation-region-setting process, the decorative-area is divided into a plurality of laser-irradiation regions (LR, LRand LR), at which time the joint-lines (J, J) are set as borders of the first-blocks () and the second-blocks () of the design (). In the laser-irradiation process, a laser-deflector is relatively displaced, and a laser L is irradiated onto each of the laser-irradiation regions (LR, LRand LR).

Method for manufacturing decorative parts

This invention aims at providing a decorated-part of which a design of three-dimensional effect is drawn onto the decorative-surface of a part material, thus improving design-quality. A design (), consisting of a plurality of the same fine regularly arranged basic-pattern (), is drawn onto the decorative-surface () of the automobile interior-part () of this invention. The fine basic-pattern () consists of the first-graphic () drawn including the first laser-processed groove () and of the second-graphic () located in the region surrounded by the first laser-processed groove () and drawn including the second laser-processed groove (). The inner-surface roughness (Ra) of the first laser-processed groove () is greater than the decorative-surface roughness (Ra) where the fine basic-pattern () does not exist on said decorative-surface () (Ra&#x3e;Ra). The inner-surface roughness (Ra) of the second laser-processed groove () is greater than the inner-surface roughness (Ra) of the first laser-processed groove () (Ra&#x3e;Ra).

Decorated part and a method for manufacturing the same

This invention provides a decorating device for vehicle-interior components, which can accurately provide gradation on the design of the surface of a resin component. The decorating device comprises a laser-irradiating device and a control device. The control device comprises a virtual-decorating surfacethat is deformed so as to have a different curvature than the surface of the actual decorating surface, thus allowing for the drawing of designs thereon. The control device prepares laser-irradiating data based on the drawing-data, and it controls the laser-irradiating device based on the laser-irradiating data. The laser-irradiating device irradiates the laser Lfocused on the virtual-decorating surfaceand conducts the laser processing on the actual decorating surface, with the focal point of the laser Lhaving been shifted from the actual decorating surface

Decorating device and decorating method for vehicle interior components, and vehicle interior component

This invention provides a method for manufacturing a decorative-part that makes it surely and easily possible to provide fine hairline-patterns that are similar to real texture by a laser-drawing process. By the method for manufacturing the decorative part, a laser-drawing process is done onto the coating-filmthat has been formed on the surfaceof the three-dimensional part-material. In this process a laser-processed groove-groupconsists of a number of laser-processed grooves, thus providing the hairline-patternon the coating-film. The laser processed groove-groupconsists of various types of arc-like laser-processed groovesthat comprise different curvature radii R of 1,000 mm or more. The arc-like laser-processed groovesare arranged extending appropriately in the same direction and of which each groove crosses at three degrees or less in irregular overlaps that show the line of each groove being wider than any other part.

Growing community of inventors

Aichi, Japan

Yukihiro Goto