JP2001248289A - Board material - Google Patents

Abstract

(57) [Problem] To provide a plate material which can easily drive nails and can effectively prevent occurrence of cracks due to driving of nails. A concave groove 11 is formed on one end surface, and a ridge 12 is formed on the opposite end surface to fit into the concave groove 11. At the base end of the ridge 12, a V-shaped nail driving groove 1 engraved on the front side thereof toward the back side of the floor plate 10.
3 is formed, and the nailing groove 13 is inclined so as to protrude toward the other end surface side toward the back surface side of the floor plate 10, and has an inclination angle (an angle formed with the end surface of the floor plate 10) of 50 degrees. It has a surface 13a. On the other end surface on which the ridge 12 is formed, a lower end surface 10b on the back surface side of the floor plate 10 with the ridge 12 interposed protrudes by a length L toward the tip side of the ridge 12, and the concave groove 11 is formed. One of the formed end surfaces is a lower end surface 10a on the back surface side of the floor plate 10 with the concave groove 11 interposed therebetween,
The lower end face 10b is retracted by the protruding length L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material such as a floor plate or a wall plate to be actually joined, and more particularly to a plate material which is unlikely to crack when nailed to a base material.

[0002]

2. Description of the Related Art For example, as shown in FIG. 5, a floor plate to be actually joined has a groove 51 formed on one end face and a ridge 52 fitted to the groove 51 on the other end face. And
As shown in the figure, the floor board 50 is fixed to the floor base B by driving a nail N obliquely into the base end of the convex strip 52, and the concave groove 51 is fitted into the convex strip 52 of the fixed floor panel 50. It is common to join the next floor plate 50.

[0003] By the way, the nail N
When the floor panel 50 is fixed to the floor substrate B by driving, if the driving of the nail N is insufficient, as shown in the figure, the nail head projects to the base end portion of the ridge 52,
There is a problem that the groove 51 of the next floor plate 50 cannot be completely fitted into the ridge 52, and a gap is generated at the joint portion between the floor plates 50, 50.

Therefore, when driving the nail N, the nail N must be driven with a large force so that the nail head is buried in the base end of the ridge 52. If the nail N is driven with a large force so as to be buried in the part, a new problem such as cracking of the floor plate 50 occurs. In particular, when the floorboard is formed of a hard peeling material such as “Nara”, the problem of cracking due to the driving of the nail N appears remarkably.

To solve such a problem, FIG.
As shown in (a), in a floor plate 60 in which a concave groove 61 is formed on one end surface and a convex line 62 fitted to the concave groove 61 is formed on the other opposite end surface, the base end of the convex line 62 is horizontally moved. By forming the nailing groove 64 by engraving in the direction, and forming the notch 63 at the upper corner of the concave groove 61 corresponding to the nailing groove 64, as shown in FIG. In some cases, the head of the nail N driven into the nail driving groove 64 is accommodated in a space defined by the nail driving groove 64 and the cutout 63.

[0006]

If the nailing groove 64 for accommodating the nail head is formed at the base end of the ridge 62, the nail N is driven with an unnecessarily large force. Since it is not necessary to do so, it is possible to effectively prevent the floor plate 60 from cracking at the stage where the nail N is driven. However, as described above, the nail driving groove 64 is formed in the base end of the ridge 62 in the horizontal direction. However, there is a problem that it is difficult to drive the nail N from above.

When the driving angle of the nail N is increased, that is, when the nail N is driven in a nearly vertical state, the distance between the end face of the floor plate 60 on which the ridge 62 is formed and the penetrating position of the nail N is increased. The distance becomes short, and the floor plate 60 may be cracked by an impact when the nail N is driven.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plate material which can easily drive nails and can effectively prevent cracks caused by driving nails.

[0009]

In order to solve the above-mentioned problems, according to the present invention, a concave groove is formed on one end face, and a ridge fitting into the concave groove is formed on the other end face. In the plate material, a nailing groove engraved toward the rear surface side is formed on the front side at the base end portion of the ridge, and the other end face on which the ridge is formed, It is intended to provide a plate material characterized in that the back side protrudes toward the tip end side of the ridge from the front side with respect to the ridge.

In the plate material configured as described above, the nail driving groove is engraved on the front side of the base end of the ridge toward the back side of the plate material in the nail driving direction. Cracking of the plate material in the initial stage of driving the nail into the base end can be effectively prevented, and the nail head can be housed in the nail driving groove. The nail can be driven with a small force as compared with the case where the nail is buried in the part, and thereby, cracking of the plate material at the end stage of driving of the nail can be effectively prevented.

Further, since the nailing groove is engraved toward the back side, the nailing groove is completely released, which has an advantage that the nail can be easily driven and that the nailing groove has an advantage. The presence of the nail shortens the distance that the nail penetrates through the plate, which also has the effect that the plate is less likely to break.

In addition, the other end surface on which the ridge is formed has a certain amount of space between the nail penetrating position and the end surface since the back side of the ridge protrudes toward the tip end of the ridge from the front side. Is secured, and cracking of the plate material due to driving of the nail can be effectively prevented.

Further, the thickness of the base end portion of the ridge becomes small due to the presence of the nailing groove engraved toward the back side of the plate member, but the ridge on the other end surface where the ridge is formed is formed. By projecting the back side to the tip side of the ridge,
Enough thickness can be secured under the nailing groove, so that the strength reduction of the ridge due to engraving the nailing groove toward the back side of the plate material is covered, effectively preventing damage to the ridge. There is an effect that can be.

[0014] In particular, as in the plate material according to claim 2, the nailing groove has an inclined surface inclined so as to project toward one of the end surfaces toward the back surface. By driving a nail along the slope,
Since the nail driving angle can be kept substantially constant, it is possible to prevent variations in the nail driving angle by the operator.

[0015]

Embodiments will be described below with reference to the drawings. FIGS. 1A and 1B show a solid floor plate 10 formed by cutting a blank plate. As shown in the figure, the floor plate 10 has a groove 11 formed on one end face and a ridge 12 fitted to the groove 11 on the other end face, and a width on the front side. A V-shaped pseudo groove 14 is formed at the center in the direction, and shallow grooves 16 having a predetermined width are formed at regular intervals on the back side to prevent warpage.

As shown in FIGS. 1 and 2, the base end of the ridge 12 formed on the other end face has a V-shaped engraved on the front side toward the back side of the floor plate 10. Nail driving groove 1
As shown in FIG. 2, the nailing groove 13 is inclined so as to project toward the other end face toward the back surface side of the floor plate 10, and has an inclination angle (an angle formed with the end surface of the floor plate 10). (Angle) is 50 degrees.

As shown in FIG. 2, the other end face on which the ridge 12 is formed has a lower end face 10b on the back surface side of the floor plate 10 with the ridge 12 interposed therebetween. One end face on which the concave groove 11 is formed is protruded by the length L, and the lower end face 10a on the back surface side of the floor plate 10 is receded by the protruding length L of the lower end face 10b across the concave groove 11. is there.

As shown in FIG. 2, a notch 1 is formed at the upper corner of the groove 11 on one end face where the groove 11 is formed.
7 are formed, and when the two floorboards 10 are actually joined, the head of the nail is housed in the space formed by the cutout 17 and the nailing groove 13 (FIG. 3
(C)).

Notches 15 and 15 are formed at upper corners of both end surfaces of the floor panel 10, respectively. When the floor panels 10 are joined to each other, joint grooves having the same shape as the pseudo groove 14 are formed at the joints. It is formed (see FIG. 3C).

The case of laying the floorboard 10 configured as described above will be described with reference to FIG. First,
As shown in FIG.
Is set at a predetermined position, and the driving angle of the nail N is determined by aligning the tip of the nail N along the inclined surface 13a of the nail driving groove 13. As shown in FIG. Is nail groove 1
The floor panel 10 is fixed to the floor base B by driving the nail N into the state of being housed in the floor 3.

Then, as shown in FIG. 1C, the concave groove 11 of the next floor plate 10 is provided with the ridge 12 of the floor plate 10 already laid.
When the upper end faces are abutted against each other while being fitted into the slab, the floor plates 10 are joined to each other, and a joint groove is formed by the cutout 15 at the joint. At this time, as shown in FIG.
7 is completely contained in the space formed by
The nail plate does not hinder the fitting condition between the ridge 12 and the concave groove 11, and the two floor plates 10 are joined without any gap. Hereinafter, the same operation is repeated, and the floor boards 10 are laid one after another.

As described above, the floor plate 10 is provided with the ridges 12
Since the nailing groove 13 is engraved on the front surface side of the base end portion toward the back surface side of the floor plate 10 in the driving direction of the nail N, compared with a floor plate not having the nailing groove 13 formed therein,
Cracking of the floor plate 10 in the initial stage when the nail N is driven into the base end of the ridge 12 can be effectively prevented.

Further, as described above, since the head of the nail N is housed in the nail driving groove 13, the nail N is formed like a floor plate having no nail driving groove formed at the base end of the ridge. As compared with the case where the nail head must be buried in the base end of the ridge, the nail N can be driven with a small force, and the floor plate 10 can be effectively prevented from being cracked at the end of the nail N driving. can do.

Further, since the nailing groove 13 is engraved toward the back side of the floor plate 10, the nailing groove 13 is completely released upward, and as shown in FIG. There is an advantage that the nail N can be easily driven as compared with the case where the nailing groove is formed by engraving the base end portion in the lateral direction.

Further, as shown in FIG.
Floor plate 1 in which 3 is engraved vertically toward the back side
The distance S of the nail N penetrating through the floor plate 10 when the nail N is driven into the base plate 0 is set to the conventional floor plate 60 in which the nail driving groove 64 is formed in the lateral direction, as shown in FIG. Since the nail N when driven is shorter than the distance S ′ that penetrates the floor plate 60, the floor plate 10 is also less likely to be broken.

Further, a nailing groove 64 is simply formed at the base end of the ridge 62.
In the conventional floor plate 60 in which only the base plate is formed, a sufficient distance between the nail N penetrating position and the lower end surface 60a cannot be ensured as shown by the oblique lines in FIG. 10 is the other lower end face 1 on which the ridge 12 is formed.
By protruding Ob toward the tip end of the ridge 12, a certain distance is secured between the nail penetration position and the lower end face 10a as shown by the oblique lines in FIG. 4 (a). In addition, cracking of the floor plate 10 due to driving of the nail N can be effectively prevented.

Further, since the lower end face 10b is protruded toward the tip end of the ridge 12, the operator erroneously inserts the nail N at a small driving angle (the angle formed with the end face of the floor plate 10). Due to the driving, even if the penetration position of the nail N approaches the lower end face 10b side, there is also an effect that the floor plate 10 is not easily broken.

Further, simply engraving the nailing groove 13 toward the back surface of the floor plate 10 results in a decrease in the thickness T of the base end of the ridge 12 as shown in FIG. Ridge 1
2 is easily damaged, but this floor plate 10
As shown in FIG. 3, the other lower end face 12b on which the ridge 12 is formed is protruded to the tip end side of the ridge 12, so that a sufficient thickness is secured below the nailing groove 13. Even if the nailing groove 13 is carved at a certain depth toward the back surface side of the floor plate 10, there is an effect that the breakage of the ridge 12 can be effectively prevented.

Further, since the floor plate 10 has an inclined surface 13a which is inclined so that the nailing groove 13 projects toward one end surface toward the back surface, the nail is formed along the inclined surface 13a. By driving N, the driving angle of the nail N can be kept substantially constant, and the variation of the driving angle of the nail by the operator can be prevented.

In the above-described embodiment, the solid floorboard 10 made of oak wood has been described. However, the present invention is not limited to this, and various types of wood such as plywood, medium fiberboard, and hard fiberboard can be used. The present invention can also be applied to floorboards formed of materials. However, "Nara"
This is particularly effective for such floorboards, since cracks are likely to occur in floorboards formed of such hard wood materials.

In the above-described embodiment, the nail driving groove 13 is used.
Is set to 50 degrees, but the present invention is not limited to this, and may be appropriately set in consideration of the workability of fixing with the nail N and the like. Generally, it is desirable to set the inclination angle to about 45 degrees.

In the above-described embodiment, a floor plate is described as an example of a plate material. However, the present invention is not limited to this, and it is applicable to various plate materials such as a wall plate as long as they are actually joined. It goes without saying that you can do it.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view of a floor panel according to the present invention as viewed from the front side, and FIG. 1 (b) is a perspective view of the same floor panel as viewed from the rear side.

FIG. 2 is a cross-sectional view showing a joint end portion of the floor plate according to the first embodiment.

FIGS. 3 (a) to 3 (c) are process diagrams showing a method for laying a floor plate of the above.

FIGS. 4 (a) to 4 (c) are explanatory diagrams for explaining the characteristic effects of the floor plate of the above.

FIG. 5 is a cross-sectional view showing a joint end of a conventional floor panel.

FIG. 6A is a cross-sectional view showing a joint end portion of another conventional floor plate, and FIG. 6B is a cross-sectional view showing a state where the same floor plate is joined.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Floor board 10a, 10b Lower end surface 11 Concave groove 12 Convex ridge 13 Nail driving groove 13a Inclined surface N nail B Floor base

Continuation of the front page F term (reference) 2E110 AA48 AB04 AB05 BA12 BD03 BD23 CA03 DA10 DA23 DC08 DC15 GB62W

Claims (2)

[Claims] 1. A plate material in which a concave groove is formed on one end surface and a ridge fitting into the concave groove is formed on the other opposite end surface, wherein a rear surface is provided on a front side of a base end portion of the ridge. A nail driving groove is formed, which is engraved toward the side, and the other end surface on which the convex ridge is formed has a rear side facing the tip side of the convex ridge rather than the front side across the convex ridge. A plate material characterized by being protruded. 2. The plate material according to claim 1, wherein the nail driving groove has an inclined surface inclined so as to protrude toward one of the end surfaces toward the back surface.