JPS6343077Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses a blistering prevention material to prevent blistering of the decorative surface during nailing work on decorative boards that are made of plywood as a base material, such as flooring and wall materials, and have convex and convex ridges. The present invention relates to decorative laminates having the following characteristics.

Conventional decorative boards, which are constructed by nailing the convex portions, are usually nailed diagonally from the decorative surface side at the base of the convex portions, as shown in FIG. At this time, the veneer that makes up the base plywood, especially the veneer that makes up the layer exposed on the decorative surface side of the base of the convex part, bulges by the volume of the nail, and this happens. It affected the decorative surface, and a blistering phenomenon was often observed on the decorative surface after construction. To prevent this, if you loosen the nail drive, the nail head will remain on the convex part as shown in Figure 2, so push up the decorative surface side of the concave part that fits with this convex part, and remove the decorative part of the concave part. A phenomenon of blistering on the surface was observed.

For this reason, as shown in Figure 3, a groove for nailing is provided on the decorative side of the base of the convex part of the convex fruit, or as shown in Figure 4, the decorative side of the convex part of the convex part is made wider than the back side. ,
Methods have been devised, such as driving the nail vertically or using a nail with a small head. However, if grooves are formed on the decorative surface side of the base of the convex part of the convex part, the strength of the convex part will be significantly reduced and it will be easy to chip. Since the surface area of the decorative surface is small, the yield rate is poor, and when the nail head is made small, it tends to fall off over many years, reducing the reliability of construction.

Therefore, this invention eliminates the above-mentioned drawbacks and provides a decorative board having a blistering prevention layer that does not cause blistering on the decorative surface even when nailing into the convex portion is performed.

An embodiment of this invention will be described below with reference to the drawings. In a decorative board having a base plate 1 as a base material and having convex portions 2 and concave portions 3, on the decorative surface side of the convex portion 2a of the convex portion 2, It is constructed by providing an indicator line portion 5 at a position slightly longer than the radius of the head of a nail 4 used in normal construction.

Incidentally, the display line portion 5 may be shown as a step as shown in FIG. 5, or may be a groove as shown in FIG. In addition, the steps and grooves in the display line part 5 indicate the nail driving position, and at the same time, the presence of the steps and grooves can be confirmed because they are used to securely fix the hanging nail, which hooks the tip of the nail when driving the nail, in the driving position. In addition, it may be large enough to catch the tip of a nail.

When creating a step in this way, it can be processed simultaneously during normal actual processing, no special process is required, and there is no reduction in work efficiency. When driving a nail into the convex part formed as described above, the nail is driven diagonally from the stepped part using the steps and grooves as a guide, as shown in Figure 7, so that the nail is placed at the base of the convex part on the decorative side of the convex part. This base plate will not blister or tear because the parts are not touched.

As explained above, this invention has an extremely useful effect of preventing blistering of the decorative surface due to nailing work with a simple structure in which the display line portion is provided on the decorative surface side of the convex portion of the convex part.

[Brief explanation of the drawing]

Figures 1, 2, 3, and 4 are partially cutaway side views of the conventional product, Figures 5 and 6 are partially cutaway side views showing an embodiment of this invention, and Figure 7 is a use of this invention. It is a partially cutaway side view showing the state. 1... Base plate, 2... Convex fruit, 2a... Convex portion, 3...
... Concave fruit, 4 ... Nail, 5 ... Display line part.

Claims (1)

[Scope of utility model registration request] In a decorative board that uses the base plate 1 as a base material and has convex portions 2 and concave portions 3, it is applied to the decorative surface side of the convex portion 2a of the convex portion 2 from the root portion on the decorative surface side of the convex portion 2a in normal construction. This decorative board has an anti-blister structure, characterized in that an indicator line part 5 consisting of a step or groove is provided at a position slightly longer than the radius of the head of a nail 4 to be removed.