JPS5845322B2 - Adhesion method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an adhesive method that allows an adhesive sheet such as a vinyl chloride sheet to be easily and beautifully adhered to the surface of a core material when manufacturing decorative plates such as face edges. It is something.

The inventor previously proposed the use of an adhesion method as shown in FIG. 2 when manufacturing a decorative plate as shown in FIG.

That is, in FIG. 2, 1 is a substrate, and this substrate 1 has a large number of suction holes 2 formed therein.

A core material receiving jig 3 is placed on this substrate 1, and a core material 4 made of particle board or the like is placed on this receiving jig 3.

A vinyl chloride sheet 5 whose back surface is coated with an adhesive is placed on the surface of the core material 4, and the surface and the substrate 1 are further covered with a rubber sheet 6.

Therefore, when air existing between the rubber sheet 6 and the substrate 1 is sucked in from this state through the suction port 2 using a vacuum pump (not shown), the rubber sheet 6 is moved to the surface of the vinyl chloride sheet 5 by atmospheric pressure. The vinyl chloride sheet 5 is adhered along the surface of the core material 4 by this pressure and the elastic force of the rubber sheet 6 itself.

Thereafter, by cutting off the excess portion of the vinyl chloride sheet 5 or, if necessary, bending it and adhering it to the back surface of the core material 4, a decorative plate as shown in FIG. 1 can be constructed.

In this case, even if there is a recess 4a in a part of the core material 4, the rubber sheet 6 will enter the recess 4a due to atmospheric pressure, and the adhesive sheet 5 can also be applied to the inner surface of the interior 4a.

However, when the recess 4a is deep and the corner part 4b is sharp, the rubber sheet 6 follows the corner part 4b<<, and therefore the adhesive sheet 5 is not adhered to the corner part 4b. The problem was that it got worse.

The present invention provides an adhesion method that solves these problems.

Embodiments of the present invention will be described below with reference to FIGS. 3 to 7.

In FIGS. 3 to 7, parts with the same reference numerals as in FIGS. 1 and 2 have the same functions, and the substrate 1. Receiving jig 3. The rubber sheet 6 and the like are omitted.

FIG. 3 uses an auxiliary jig 7 made of a hard material such as metal material, wood, or hard rubber, and consisting only of a convex portion that fits into a concave portion 4a of a core material 4. 7
When the core member 4 is fitted into the recess 4a, the surface formed by the surface of the core material 4 and the surface of the auxiliary jig 7 is configured to be a convex surface without a recess.

For this reason, the surfaces of the core material 4 and the auxiliary jig 7 are covered with a rubber sheet 6.
If the rubber sheet 6 is adsorbed in the same manner as shown in FIG. 2, the corner part of the auxiliary jig 7 made of a hard material will press the adhesive sheet 5 to the corner part 4b of the recess 4a. The adhesive condition at the corner portion 4b is extremely good.

When the auxiliary jig 7 that simply fits into the recess 4a of the core material 4 is used as in this embodiment, there is an advantage that the cost is reduced.

In this case, since there is a risk that the auxiliary jig 7 may shift from the predetermined position in the recess 4a when the rubber sheet 6 is sucked, there is a possibility that the auxiliary jig 7 and the adhesion sheet 5 are
It is desirable to insert an auxiliary sheet 8 having a small coefficient of friction.

In FIG. 4, an elastic sheet 9b and an auxiliary jig 9 are constructed on the inner surface of a hard material 9a which is pressed onto the adhesive sheet 5.

In this way, even if some variation occurs in the shape of the inner surface during molding of the hard material 9a, this can be absorbed by the elastic sheet 9b, and the force surface of the recess 4a is uniformly distributed over the entire force surface area. Crimping force can be applied.

Fig. 5 shows a convex part 10 made of a hard material such as a metal material.
The auxiliary jig 10 is constructed with a.

In this case, since there is no possibility that the auxiliary jig 10 will be displaced when the rubber sheet 6 is sucked, there is no need to use the auxiliary sheet 8 as shown in FIGS. 3 and 4.

However, in this case, since there is a risk that the rubber sheet 6 may be damaged by the end portion 10b of the auxiliary jig 10 when the rubber sheet 6 is attracted, it is desirable that this portion be rounded.

In FIG. 6, an auxiliary jig 11 is constructed by attaching an elastic sheet N1b to the inner surface of a hard material 11a, as in FIG. 4.

FIG. 7 shows an auxiliary jig 12 constructed using a rubber material.

In this case, the rubber material has a hardness measurement value of 55 to 60.
It is desirable to have a hardness of about 100%.

In each of the examples, a rubber sheet was used to press the adhesive sheet such as a vinyl chloride sheet, but it is not necessarily necessary to use a rubber sheet. It is acceptable as long as it has a gender.

As described above, according to the present invention, by covering the recessed portion of the core material with an auxiliary jig, an excellent effect can be obtained in that the adhesive sheet can be beautifully applied even to the inside of the recessed portion.

Moreover, in the present invention, an auxiliary sheet with a small coefficient of friction is interposed on the bottom surface of the sheet, so even if the sheet is made of a material with a high coefficient of friction such as rubber, the auxiliary jig will not move from the predetermined position during suction. It is possible to reliably prevent misalignment.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a decorative plate, FIG. 2 is a sectional view showing a conventional bonding method, and FIGS. 3 to 7 are sectional views showing a bonding method in an embodiment of the present invention. 1... Board, 2... Inlet, 3...
...Receiving jig, 4...Core material, 4a...
Concave portion, 5... Pasting sheet, 6... Rubber sheet, 7, 9, 10, 11, 12... Auxiliary jig, 9b, 11b...・Elastic sheet.

Claims (1)

[Claims] 1. An adhesive sheet is placed on the surface of a core material having a recessed portion in a portion thereof, and a convex portion is formed on the surface of the adhesive sheet at least in part so as to fit into the recessed portion of the core material. An auxiliary jig having a portion of The sheet is then covered with a sheet having An adhesion method characterized by adhering a wearable sheet to the surface of the core material. 2. The bonding method according to claim 1, characterized in that an auxiliary jig made of a hard material such as a metal material or hard rubber is used. 3. Claim 1, characterized in that an auxiliary jig is used, which is made of a hard material such as a metal material or hard rubber, and has an elastic sheet affixed to the surface to be crimped to the affixing sheet.
Adhesion method described in section. 4. The bonding method according to claim 1, characterized in that an auxiliary jig made of a rubber material having a hardness of 55 to 60 degrees as measured by a rubber hardness meter is used.