JPS5818891B2 - Top plate with water tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a top plate with a water tank used for sinks, wash basins, etc., and it ensures the finishing of the cut-out holes in the top plate.

Examples thereof will be described below with reference to the drawings.

Figures 1 to 5 show the case of a top plate for a sink. 1 is a top plate consisting of a porous substrate 2 such as particle board, and a decorative board 3 such as melamine placed on the top surface. A cutout hole 4 is provided.

5 is a recess provided in the wood end surface 6 of the hollow hole 4 of the top plate 1;
It is provided over the entire circumference of the butt end surface 6.

Reference numeral 7 denotes a recess provided in the back surface 8 of the top plate 1 that intersects with the wood end surface 6. Like the recess 5, this recess 7 is provided corresponding to the entire circumference of the hollow hole 4, and is located at the wood end. Recess 5 on side 6
It is provided away from the deepest part toward the outside of the top plate.

Reference numeral 9 denotes an adhesive thermosetting resin material (for example, polyester, polyurethane, epoxy) bonded from the end surface 6 of the top plate 1 to the back surface 8.

Reference numeral 10 denotes a water tank that is integrally connected to the thermosetting resin material 9, and as shown in FIGS. They are integrally connected in the inserted form.

11 is a through hole formed in the flange 10a.

In the above configuration, the thermosetting resin material 9 is injected into the mold and then hardened to integrate with the top plate 1 and the water tank 10. After hardening, the thermosetting resin material 9 is exposed to outside air. Shrinks due to temperature changes, etc.

Since the shrinkage stress acts as shown by the arrow in Figure 4,
In the conventional type, the thermosetting resin material 9 separates from the top plate 1, and a gap T is created between the thermosetting resin material 9 and the top plate 1, as shown in FIG.

In particular, since shrinkage stress acts intensively on the corner portion 4a of the hollow hole 4, the gap T is more likely to occur than on the side portion 4b.

This gap T causes the thermosetting resin material 9 and the water tank 10 attached to the thermosetting resin material 9 to separate from the top plate 1 together with the thermosetting resin material 9.

Furthermore, water or the like may enter the gap T, resulting in the top plate 1 being eroded.

In order to solve these problems, in the present invention, as described above, recesses 5.7 are formed in the end surface 6 and back surface 8 of the top plate 1, and a thermosetting resin material 9 is inserted therein and hardened. I'm letting you do it.

As a result, the thermosetting resin material 9 becomes as shown in FIG.
Since a part of the thermosetting resin material 9 has entered the recess 7 on one side of the top plate 1 that intersects the direction of action of the shrinkage stress (arrow A), the thermosetting resin material 9 is prevented from shrinking and is prevented from separating from the top plate 1. It disappears.

Further, the annular thermosetting resin material 9 has a water tank 10 in its shrinking direction.
Therefore, the rigidity of the water tank acts as a second shrinkage prevention means to ensure prevention of separation, and furthermore, the tensile stress applied to the thermosetting resin material in the recess 7 is reduced, preventing cracking of the thermosetting resin material. is prevented.

The reason why the thermosetting resin material 9 is inserted into the recess provided in the butt end surface 6 in the same direction as the shrinking direction is that even if pressure is applied from above as shown by arrow B, the thermosetting resin material 9 will not stay in the ceiling. This is to prevent it from easily separating from the plate 1.

The reason why the recess 7 on the back side of the top plate 1 is provided farther to the outside of the top plate 1 than the deepest part of the recess 5 on the butt end surface is due to the proximity of the recesses 5 and 7 when machining the recess. This is to prevent cracking, bending, etc. from occurring.

In the above embodiment, the recesses 5 and 7 are provided over the entire circumference of the hollow hole 4, but they may also be provided only at a part of the corner where they are particularly easy to separate.

As described above, according to the present invention, shrinkage of the thermosetting resin material can be prevented, so there is no gap between the top plate and the thermosetting resin material, and heat from the top plate is prevented. It is possible to reliably prevent the hardening resin material or the water tank attached thereto from falling off and the substrate itself from being eroded, and its industrial value is considerable.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line AA' in Fig. 1, Fig. 3 is a sectional view showing another embodiment, and Fig. 4 is the same plane. 5 are enlarged plan views of the same essential parts. 1...Top plate, 2...Substrate, 3...
... Decorative board, 4... Hollow hole, 5, 7...
...Concavity, 6...End surface, 8...Back surface, 9...Thermosetting resin material, 10...
Water tank, 10a... Water tank flange.

Claims (1)

[Claims] 1 A decorative board is pasted on the surface of the board, a hollow hole is provided in the middle of the board, and in this hollow hole part, which is a top plate with an aquarium attached to which a water tank is attached, the large cutout face and the non-board near this woodwork face are attached. A recess is formed on each back side, and the recess on the back side of the top plate is provided further away from the outer side of the top plate than the deepest part of the recess on the side of the butt end, and the recess is placed in the hollowed hole part of the top plate with a gap between them. In addition to arranging the water tank, the hollowed-out large tree
A thermosetting resin material is integrated by molding over the lower surface of the water tank flange and the back surface near the large cutout surface, and a part of the thermosetting resin material is inserted into the recess, and the flange portion of the water tank is A top plate with an aquarium formed by integrally mounting a beam between the annular thermosetting resin materials.