JPS5852490B2 - Wood strip board that prevents chipping - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention enables the formation of a soft layer on the side through which nails, rivets, etc. pass through by dividing formed wooden strips into two pieces, pasting them together, or cutting off the surface layer. , relates to a wood strip board that prevents chipping and allows screws and the like to be driven in without chipping.

Conventionally, in particle boards, birdboards, and other wood strip boards made by compression molding wood chips, fibers, etc. using heat press, the upper and lower layers are harder than the middle part, and the soft layer S is replaced by the upper and lower hard layers, h. It is formed into a sandwich-like shape that is held between the two sides.

As a result, as shown in Fig. 1, when the nail 6 is driven into the lower surface without any support, the tip of the nail 6 enters the hard stratum of the lower surface which is difficult to pass through. Due to the resistance force, the crank C is generated inside, or the hard layer, including a part of the soft layer S, falls off in a large forest shape, resulting in a defective part, and the nail 6
This causes problems such as a significant reduction in the pulling and holding force of the nail 6, and water such as dew condensation adhering to the lower surface permeating into the interior and promoting corrosion.

The purpose of the present invention is to provide a wooden strip board that prevents chipping and can solve these problems, and one embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, a wooden strip board 1 that prevents chipping according to the present invention is shown.
A soft layer S is formed on the side surface of a compression-molded wooden strip board 2 such as so-called particle board or bird board, where nails, etc. pass through. As shown in Figure a, a base material 2 made of wood strips having a thickness twice the required thickness is formed in advance, and then divided into two pieces at the soft layer S in the center, or as shown in Figure 2. A soft material 3 such as a soft synthetic resin board, a wooden board, etc., which is as soft as the soft layer S, is laminated on the surface of the wooden strip board 2 to form a soft layer S, or a through-hole is formed as shown in FIG. It can be produced by removing the hard layer on one side.

Further, the base material 2 consisting of a wooden strip board formed to a predetermined thickness is divided into two pieces at the center of the soft layer to create a 1/2-thick half plate 4.4.
After forming each hard layer, as shown in Figure 3a,
Invert the upper and lower half plates 4 so that they are back to back and stick them together, or as shown in Figure 3, invert the lower half plate 4 and insert a hard layer in the center, and then attach the upper and lower halves. It may be formed as a bonded material arranged so as to form a soft layer S.

However, when a nail is driven through an object 5 to be fixed such as a slate board, even if there is no retainer plate at the place where the nail is driven, the side surface is the soft layer S and there is resistance to the nail 6 being pulled out. Since the hard layer is not located on the bottom surface, there will be no cracks on the side surface and no falling off.

As mentioned above, the chip-proof wood strip board of the present invention is obtained by splitting a base material made of compression-molded wood strip board into two pieces and pasting them together or cutting off the surface layer to form a soft layer on the side. As a result of this configuration, it is possible to prevent the occurrence of cracks and reduce the thickness of the board due to falling off, ensure the ability to pull out and retain nails, rivets, etc., prevent corrosion, and use nails, etc. to fix straw mats, etc. The scales are suitable for use as a holding plate.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing the state of defects on the surface of a conventional plate;
Figures a to C are cross-sectional views showing one embodiment of the present invention, Figure 3a
-b are sectional views showing other embodiments together with usage examples. 2...Base material, h...Hard layer, S...
...Soft layer.

Claims (1)

[Claims] 1 A base material consisting of a wooden strip board whose surface is made harder than the central part by compression molding is divided into two sheets at the soft layer part in the center, and the hard layer on the surface is removed, or the base material is A wooden strip board that prevents chipping and is characterized by having a soft surface on the side where nails, etc. can be removed by laminating soft materials together.