JPH1052858A - Adhering method for covering sheet to base material surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a design effect of a base material surface by effectively pushing a decoratively coating boundary of a covering sheet into a groove of the base material without extruding in a method for adhering the sheet to the surface of the material in the state that the boundary is pushed into the groove provided on the surface of the material. SOLUTION: The method for adhering a covering sheet 12 to a surface of a base material 11 comprises the steps of providing a groove 12a opened to a front surface side or a protrusion protruding to a rear surface side at a decorative coating boundary of the sheet 12, and pushing it from the front surface side of the groove 12c or protrusion into a groove 11a of the material 11 by an assist plug 15. The boundary of the sheet 12 is effectively pushed into the groove 11a of the material 11 by the plug 15 latched to the groove 12c or the protrusion pressed to the plug 15 without protruding the boundary from the groove 11a to improve its design effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a coated sheet to a substrate surface, and more particularly to a method for attaching a coated sheet colored in a plurality of colors to the substrate surface. It relates to a sticking method.

[0002]

2. Description of the Related Art As a method of attaching a coating sheet colored in a plurality of colors to the surface of a substrate, a method of attaching the coating sheet to a substrate by using a jig at a colored boundary portion of the coating sheet is described. There is a method of sticking the coated sheet to the surface of the base material by pressing the coated sheet onto the surface of the base material by pressing the coated sheet into the groove formed on the surface of the base material and bonding the coated sheet along the surface of the base material. .

[0003] In the sticking method, the coloring boundary of the coated sheet is pressed into a groove provided on the surface of the substrate, and the coated sheet is polymerized on the surface of the substrate to be bonded. In the covering sheet that is covered, the coloring boundary portion becomes a concave portion so that the respective colors are clearly separated from each other, and a design surface with a very good appearance is formed on the surface of the base material.

[0004]

However, in such a method, since the covering sheet is rich in flexibility, when the coloring boundary is pushed into the groove on the surface of the base material, the coloring boundary forms the tip of the jig. As a result, it is difficult to securely push all of the coloring boundary portion into the groove portion, and the coloring boundary portion may locally protrude from the groove portion on the base material surface, exhibit a wave shape, and impair the appearance.

Accordingly, an object of the present invention is to provide a method in which the coloring boundary portion of the covering sheet can be reliably pushed into the groove provided on the surface of the base material in the sticking method. An object of the present invention is to prevent the color boundary portion from locally protruding from the groove so as to prevent the appearance from being deteriorated.

[0006]

According to a first sticking method of the present invention, in the above-mentioned method of sticking a covering sheet to a substrate surface, the jig can be inserted into a coloring boundary of the covering sheet. Forming a groove having a predetermined width that opens to the front surface side, inserting the jig into the groove and pressing the coloring boundary portion of the coating sheet into the groove of the base material to form the coating sheet on the surface of the base material. It is characterized by polymerizing and attaching the coated sheet to the surface of the substrate.

[0007] In a second bonding method of the present invention, in the above-mentioned method of bonding the covering sheet to the surface of the base material, the back surface which can be inserted into the groove of the base material at the coloring boundary of the covering sheet. Forming a projecting portion of a predetermined width to protrude, pushing the projecting portion into the groove of the base material using the jig, polymerizing the coating sheet on the surface of the base material, and applying the coating sheet to the base material. It is characterized in that it is attached to the surface.

[0008]

According to the first bonding method of the present invention, when the coloring boundary of the cover sheet is pressed into the groove on the surface of the base material, the jig is inserted into the groove provided at the coloring boundary. Because it is in the hooked state, the coloring boundary does not deviate from the tip of the jig, and the entire coloring boundary can be reliably pushed into the groove, and the coloring boundary is localized from the groove on the base material surface. It does not protrude and impair the appearance.

Further, according to the second attaching method of the present invention,
To push the coloring boundary of the covering sheet into the groove on the surface of the base material, it is sufficient to push the protrusion protruding to the back side of the covering sheet from the front side, so that all of the coloring boundary is securely pushed into the groove. The coloring boundary portion does not locally protrude from the groove on the surface of the base material and does not impair the appearance.

Therefore, according to each of the sticking methods of the present invention, the coloring boundary of the covering sheet can be reliably pushed into the groove formed on the surface of the substrate, and the appearance of the design surface formed on the surface of the substrate can be improved. Can be further improved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a sticking method according to an example of the present invention. In the attaching method, the covering sheet 12 is attached to the surface of the substrate 11. The base material 11 is formed by adding a binder such as phenolic resin to a wood fiber and heat-forming the material, or by injection-forming a synthetic resin to form a door trim of a vehicle door molded into a predetermined shape. A groove 11a having a predetermined depth and a predetermined width is formed at an upper portion on the surface of the base material.

The covering sheet 12 is a polyolefin-based or polyvinyl chloride-based sheet, and its surface is divided into a first portion 12a and a second portion 12b having different colors, and is formed on a design surface. .

In attaching the covering sheet 12 to the surface of the substrate 11, the substrate 11 is first placed on the mold surface of the vacuum forming die 13 and is placed above the placed substrate 11. The cover sheet 12 is stretched via the clamp 14 and softened by heating.

Next, a chloroprene-based or urethane-based adhesive is applied to the surface of the base material 11, and is lowered while the covering sheet 12 is stretched to polymerize on the surface of the base material 11. And the first of the cover sheet 12
The boundary (color boundary) between the part 12a and the second part 12b is pressed into the groove 11a of the base material 11.

Finally, a negative pressure is applied to the covering sheet 12 through the molding die 13 to ensure that the covering sheet 12 follows the surface of the substrate 11 and apply the covering sheet 12 to the surface of the substrate 11. It is adhered to the surface of the substrate 11 via an adhesive.

In the covering sheet 12, a groove 12c opening on the front surface side is formed at the colored boundary between the first region 12a and the second region 12b on the surface as shown in FIG. Alternatively, as shown in FIG. 4, a protruding portion 12d protruding from the back surface is formed.

As shown in FIG. 3A, a high frequency welder 16 is formed at the boundary between the first portion 12a and the second portion 12b to form a groove 12c opening to the front side at the coloring boundary of the covering sheet 12. Is pressed to melt the part to a certain depth, a state is formed as shown in FIG. In order to form the projection 12d projecting to the back surface at the coloring boundary of the covering sheet 12, as shown in FIG. 4A, the covering sheet 12 is formed by dividing the covering sheet 12 between the first portion 12a and the second portion 12b. Then, the vicinity of the base of the fold is pressed and adhered by the high-frequency welder 16, and when the fold is developed, it is formed in the state shown in FIG.

FIG. 3 illustrates a first sticking method of the present invention. In the sticking method, when the coloring boundary portion of the covering sheet 11 is pressed into the groove 11 a on the surface of the base material 11,
Since the assist plug 15 is engaged with the groove 12c provided at the coloring boundary as shown in FIG. 3B, the coloring boundary does not shift from the tip of the assist plug 15 and the coloring boundary is formed. All of them can be reliably pushed into the groove 11a, and the coloring boundary portion does not protrude from the groove 11a on the surface of the base material 11 as shown in FIG.

FIG. 4 illustrates a second attaching method of the present invention. In the attaching method, the covering sheet 1 is used.
In order to press the colored boundary portion 2 into the groove 11a on the front surface of the base material 11, the protrusion 1
2d may be pushed in from the front side by the assist plug 15 as shown in FIG. 2B, whereby the entire coloring boundary can be pushed securely into the groove 11a. As shown in c), it does not protrude from the groove 11a on the surface of the base material 11 to impair the appearance.

Therefore, according to each of the sticking methods of the present invention, the coloring boundary portion of the covering sheet 12 can be reliably pushed into the groove 11a provided on the surface of the base material 11, and formed on the surface of the base material 11. The appearance of the design surface can be further improved.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing an example of an attaching method according to the present invention.

FIG. 2 is a perspective view showing a relationship between a substrate, a covering sheet, and an assist plug in the attaching method.

FIG. 3 is an explanatory view schematically showing a first attaching method of the present invention.

FIG. 4 is an explanatory view schematically showing a second attaching method of the present invention.

[Explanation of symbols]

11: base material, 11a: groove, 12: covering sheet, 12a
... 1st part, 12b ... 2nd part, 12c ... groove part, 12d
... projecting part, 13 ... molding die, 14 ... clamp, 15 ... assist plug, 16 ... high frequency welder.

Claims (2)

[Claims] 1. A method for attaching a coated sheet colored in a plurality of colors to a surface of a substrate, the method comprising: attaching a colored sheet to the surface of the substrate using a jig. Then, the coated sheet is polymerized on the surface of the substrate by pressing into a groove formed on the surface of the substrate, and the coated sheet is adhered along the surface of the substrate. In the wearing method, a groove having a predetermined width is formed at a coloring boundary portion of the covering sheet to open to a surface side on which the jig can be inserted, and the jig is inserted into the groove portion to form a coloring boundary portion of the covering sheet. A method for attaching a coated sheet to a surface of a base material, wherein the coated sheet is polymerized on the surface of the base material by being pushed into a groove of the base material, and the coated sheet is attached to the surface of the base material. . 2. A method for attaching a coated sheet colored in a plurality of colors to a surface of a substrate, the method comprising: attaching a colored sheet to the surface of the substrate using a jig. Then, the coated sheet is polymerized on the surface of the substrate by pressing into a groove formed on the surface of the substrate, and the coated sheet is adhered along the surface of the substrate. In the attaching method, a protrusion having a predetermined width is formed at a color boundary portion of the covering sheet and protrudes to a back surface side that can be inserted into the groove of the base material, and the protrusion is formed by using the jig. Wherein the coated sheet is polymerized on the surface of the substrate by pressing the coated sheet onto the surface of the substrate, and the coated sheet is bonded to the surface of the substrate.