JP2509987Y2 - Cushion for press used for bonding work - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press cushion used for bonding work for bonding a decorative material to a panel material, a veneer material or the like.

[0002]

2. Description of the Related Art Conventionally, when a decorative material is applied to a panel material or veneer material by pressure bonding with a woodworking press, unevenness in the applied pressure occurs due to uneven thickness of the panel material or veneer material or the shape. However, the adhesive was accumulated in the recessed portion to form a glue deposit, which was easily peeled off even by light bending or impact, and adhesion failure was likely to occur. Therefore, as a means for absorbing the uneven thickness of the panel material or veneer material, a cushion material such as a blanket or felt is placed on a lower surface plate of a woodworking press and pressure-bonded. .

[0003]

However, in the case of using the above blanket or felt, the pressure curve is steep as shown in FIG. 5, so that the adhesive sticks out in the recessed portion and sticks out. Since the adhesive will cure without being
The glue accumulated in the recessed portion became a glue reservoir, which was a cause of defective adhesion.

According to the present invention, even if the material has uneven thickness or various shapes, the uniform pressure is applied.
The purpose is to improve the quality by eliminating the glue reservoir and increasing the adhesive effect.

[0005]

In order to solve the above problems , a large number of elastic projections are uniformly provided on the entire upper surface of the sheet body formed of a foam cushion material . Or
Uniformly elastic hemisphere over the entire upper surface of the sheet body
-Shaped or frustoconical projections
The lower step is integrally formed around the periphery, and the seat is
The structure is made by attaching elastic cloth on both sides of the main body.

[0006]

Next, the method of using the present invention will be described. First, the product of the present invention is placed on the lower surface plate (6) of the press body (5) so that the convex portion (2) faces downward. After that, materials to be pressure-bonded are stacked, and another product of the present invention is placed on the upper surface of the top material. If necessary, the product of the present invention may be sandwiched between the materials (see FIG. 4). Next, pressure board (7)
And the bonding work begins. Explaining in detail how the pressure is applied at this time, first, the convex
The portion (2) is gradually compressed, and thereafter the convex portion (2) is also compressed and the sheet main body (1) is also gradually compressed. When the pressure is further applied, the convex portion (2) is completely compressed and the upper surface of the sheet main body (1) becomes substantially flat. The relationship between the applied pressure and the deflection during this period is as shown in 0A in FIG. 5, and the weak pressure can be well captured. After that, when the pressure is further increased, the sea
Unlike the solid material, the material of the main body (1) is foamed and swelled as a whole, so that the swelling is gradually compressed with an appropriate pressure. As a result, the entire flat surface of the sheet body (1) is compressed, so that the slope becomes steeper than that between 0A. Therefore, as shown in the graph of the present invention, in 0A in which the convex portion (2) is compressed, the weak pressure can be well taken, and while the weak pressure is applied, it is better than the conventional one. Since it is much longer, the pressure is gradually increased, and the adhesive that has accumulated in the recessed portion of the material is adhered in a state that it has squeezed out, and it is possible to adhere with almost no glue accumulation. Further, after the point A, since the pressure is applied in a smooth curve, the adhesion state becomes extremely good.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 are views showing a first embodiment, and description will be made based on this. (1) is a sheet main body formed of an expandable cushion material in a rectangular shape. As the expandable cushion material of the sheet main body (1), synthetic resin such as urethane foam or foamable rubber is used. A sponge-like porous material having elasticity and air permeability is also preferable. (2)
Are elastic projections provided on the upper surface of the sheet body (1)
The shape is hemispherical, frustoconical, etc.
Is evenly provided on the entire upper surface of the sheet body (1).
It The convex portion (2) is made of the same material as the sheet body (1).
To integrally mold. The height and size of the protrusion of the convex portion (2) are determined in consideration of the strength of the cushion material and the state of pressurization with a weak pressure. The size of the cushion of the present invention may be determined later by cutting the sheet body (1) having a predetermined size to a size suitable for use.

FIG. 3 is a diagram showing a second embodiment, which will be described. (1) is a sheet body formed of a foamable cushioning material having air permeability in a rectangular shape.
As the foaming cushion material of the main body (1), synthetic resin such as urethane foam or foaming rubber is used and has elasticity. (2) is a large number of bullets provided on the upper surface of the sheet body (1)
Is a convex portion having a property, and has a hemispherical shape, a truncated cone shape, or the like , and is uniformly provided on the entire upper surface.
The convex portion (2) is integrally formed with the sheet main body (1) with the same material. The height and size of the protrusion of the convex portion (2) are determined in consideration of the strength of the cushion material and the state of pressurization with a weak pressure. (3) is an integrated step portion which is formed by heating the periphery of the sheet main body (1) by heat and is one step lower .
(4) and (4 ') are stretchable fabrics attached to the upper and lower surfaces of the sheet body (1). The stretchable fabric (4 ') attached to the lower surface of the sheet body (1) may be omitted. Next, the manufacturing method will be described .
Stretch fabric on both sides of a thick foam cushion material
Combine (4) and (4 '). Then add from above
It is pressed by a heated predetermined mold, and the convex portion (2) and the step portion which is one step lower
(3) is molded and the thickness of the sheet body (1) is also compressed
And mold. Therefore, the convex portion (2) and the lower one
The step (3) of is covered with the stretchable fabric (4),
The shape of part (2) can be retained for a long time without fraying
It Moreover, the texture of the entire surface is more precise than that of the inside.
Since it becomes dense, the durability is improved.

[0009]

According to the present invention, the present invention has the following effects.

The convex portion (2) of the sheet body (1) of the foamable cushion material is gradually compressed and the sheet is
By the thickness of the bets body (1) is compressed, is while participating weak pressure becomes much longer than conventional, the contact
The cushioning function can be fulfilled for the adhesive material,
Since eliminating good it is possible to obtain a good adhesion state Te order pole.

According to the present invention, even if the material to be adhered has a non-uniform thickness or various shapes, a uniform pressure is applied, the glue pool is erased, the adhesive effect is enhanced, and the quality can be improved. To do.

According to the present invention of claim 2, the sheet body
A hemispherical or truncated cone-shaped convex portion (2) is provided on the upper surface of (1).
It is evenly installed and is one step lower around the seat body (1).
The step portion (3) is integrally provided, and the sheet main body (1) is provided on both sides.
For attaching stretchable fabrics (4), (4 ') to the surface
Therefore, not only the same effect as in claim 1 is obtained, but also the surface
Prevents fraying, improves durability, and repeats over a long period of time.
It can be returned and used, making it economical.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory view showing the structure of the main part of the first embodiment of the present invention.

FIG. 3 is an explanatory view showing a main structure of a second embodiment of the present invention.

FIG. 4 is an explanatory view showing a usage state of the present invention.

FIG. 5 is a diagram showing a relationship between a pressing force applied to a material to be adhered and a deflection.

[Explanation of symbols]

 1 sheet body 2Convex  3Step  4,4 'stretch fabric

Claims (2)

(57) [Scope of utility model registration request] 1. A convex part having elasticity uniformly over the entire upper surface of a sheet body (1) formed of a foamable cushion material.
A cushion for a press used for bonding work, characterized in that a large number of (2) are provided . 2. A hemispherical or elastic member having a uniform elasticity over the entire upper surface of the sheet body (1) formed of a foamable cushion material.
The sheet body is provided with a large number of convex portions (2) having a truncated cone shape.
A lower step (3) is integrally formed around (1),
A cushion for press used for bonding work, characterized in that stretchable fabrics (4), (4 ') are attached to both sides of the sheet body (1) .