JPH031457B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a decorative board with excellent sound absorption and design, which is used for ceiling materials, wall materials, etc. of houses, stores, etc., and a method for manufacturing the same. be.

(Prior art and its problems) Traditionally, sound-absorbing interior materials such as ceiling materials and wall materials have been made using porous boards such as soft fiber boards and rock wool boards with many pin holes or drill holes. A plate-shaped body having a travertine-patterned recess is known.

However, although this structure differs depending on the material of the plate and the shape of the holes or recesses, in general, even if it has sound absorption properties in the mid to high frequency range, it does not have sound absorption properties in the low frequency range. Since it is extremely low and the pin holes and recesses are extremely small, it has a flat appearance with no depth and lacks a three-dimensional effect.

For this reason, the inventors of the present application have
As described in the publication, we have developed a building board in which a number of holes with a flat pot-shaped cross section are formed in the interior of the surface opening, but the surface opening Excavation work to enlarge the interior that communicates with the interior requires considerable effort, resulting in poor productivity.In addition, only the opening is exposed on the surface, and the interior shape is hidden, resulting in a variable three-dimensional feel and solidity. There were some problems, such as insufficient capacity.

The present invention solves these problems and provides a novel decorative board that is extremely excellent in sound absorption and design, and a method for manufacturing the same.

(Means for Solving the Problems) In order to achieve the above object, the decorative board of the present invention has a plurality of parallel hollow holes 2 and 3 in a plate-like body 1, as shown in the drawings corresponding to the embodiments. It is characterized in that a plurality of grooves 4 and 5 are formed in several stages and communicate from the surface of the plate-like body 1 to the parallel hollow holes 2 and 3 in any stage, As a method for manufacturing this decorative board, several plate-like bodies 1a, 1b, 1c, each having a plurality of grooves 2a, 2b, 2c communicating between both side end faces formed on the surface, are connected to a plate-like body whose grooved surfaces are adjacent to each other. By laminating and integrating the bodies 1a and 1b so as to be in contact with the back surfaces of the bodies 1a and 1b, the upper end openings of the grooves 2b and 2c are closed by the plate-like bodies 1a and 1b laminated on the upper side, thereby forming hollow holes arranged in parallel in multiple stages. A laminated plate-like body 1 is obtained by forming holes 2 and 3, and then hollow holes 2,
It is characterized by having a plurality of grooves 4 and 5 of up to 3 grooves.

(Function) Several stages of parallel hollow holes 2 and 3 are provided inside the plate-shaped body 1, and the plate-shaped body 1 is inserted into these parallel hollow holes 2 and 3.
The grooves 4, 5 of different depths communicate with each other from the surface to form a varied three-dimensional shape, and through each groove 4, 5, parallel hollow holes 2, of different steps are formed.
3 is partially exposed to the outside, giving a sense of depth and solidity, and furthermore, the parallel hollow holes 2 and 3 communicating with the grooves 4 and 5 form a so-called long-tube resonator, similar to a Helmholtz resonator. Demonstrates the sound-deadening effect of
Moreover, grooves 4 having different depths from the side walls of the hollow holes 2 and 3,
The side walls 5 and 5 have a complex stepped shape to effectively diffuse sound and absorb sound.

(Example) To explain an example of the present invention with reference to the drawings, 1
is a relatively thick vegetable fiberboard with an overall thickness of several centimeters,
A plate-shaped body made of mineral fiberboard or other suitable material, with straight hollow holes 2 and 3 penetrating from one side end face to the other side end face at predetermined intervals in the horizontal direction in the lower part and center part. They are arranged in parallel, and furthermore, this plate-like body 1
grooves 4 communicating from the surface to the middle parallel hollow holes 2
and grooves 5 communicating with the lower parallel hollow holes 3 in the direction in which these grooves 4 and 5 intersect with the length direction of the parallel hollow holes 2 and 3 (orthogonal in the figure). The sound-absorbing decorative board is constructed by carving at predetermined intervals.

The plate-like body 1 constituting such a sound-absorbing decorative board is
Although it may be a single piece, as shown in the figure, there are grooves on the surface and a plurality of grooves 2a communicating between both end surfaces.
2b, 2c are formed at desired intervals.
By laminating and integrating the grooves 2b and 1b so as to be in contact with the back surfaces of the grooves 2b and 1b, the upper end openings of the grooves 2b and 2c are closed by the plate-like bodies 1a and 1b laminated on the upper side, thereby forming hollow holes 2 arranged in parallel in multiple stages. , 3 may be used.

The cross-sectional shape of the hollow holes 2 and 3 provided in this plate-like body 1 may be triangular, quadrangular or other polygonal,
Alternatively, it may have any suitable shape such as a circular shape.

In addition, in the case of forming a laminated plate-like body, the grooves 2a provided on the surface side of the upper plate-like body 1a are the grooves 4,
5, and the protrusions 6 between the adjacent grooves 2a, 2a form longitudinally and horizontally protrusions 7 divided at regular intervals in the length direction, and these protrusions 7 provide even more variety. It gives a three-dimensional effect.

In addition, the pitch of the hollow holes 2 and 3 and the grooves 4 and 5 is as follows.
Although they are provided at intervals approximately equal to the dimensions of the hole shape and groove width, they are not limited to this, and may be formed at any desired pitch.

Furthermore, although the grooves 4 and 5 are provided so as to communicate with the central parallel hollow hole 2 and the lower parallel hollow hole 3 sequentially and alternately, they may be communicated with each other as desired.

Next, regarding the manufacturing method of such a decorative board, vegetable fiberboard, mineral fiberboard, or other suitable plate-like bodies 1a, 1b, 1c are coated with a depth that reaches approximately the middle of the thickness from the surface. Straight grooves 2a, 2 having
A plurality of strips b and 2c are formed at predetermined intervals by penetrating between both end faces.

The cross-sectional shape of these grooves 2a, 2b, and 2c is formed into a trapezoidal shape with a narrow bottom surface, but it may be any other suitable shape such as a polygonal shape or a semicircular shape.

In this way, the plate-like bodies 1a, 1b, and 1c provided with the grooves 2a, 2b, and 2c, respectively, are laminated with the grooves facing upward in the same direction, and the overlapping surfaces, that is, the lower By bonding together the upper end surface of the protrusion 6 formed between adjacent grooves of the side plate-like body and the smooth lower surface of the upper plate-like body, the upper end opening of the groove can be closed with the smooth lower surface. A laminated plate state is obtained in which a plurality of closed hollow holes 2 and 3 are formed in parallel.

Next, as shown in FIG. 3, the upper plate-like body 1a
Grooves 4 and 5 that reach the bottom of the parallel hollow holes 2 of the intermediate plate-like body 1b and the bottom of the parallel hollow holes 3 of the lower plate-like body 1c from the surface of the plate-like body 1b are arranged so as to intersect these hollow holes 2 and 3. By sequentially carving them at desired intervals, a three-dimensional decorative structure with cut portions of the hollow holes 2 and 3 opened on both sides of the protrusion 7 formed between the grooves 4 and 5. A board is obtained.

Note that the lower surfaces of each of the plate-like bodies 1a, 1b, and 1c are formed to be smooth, but similar grooves are formed that match or slightly deviate from the grooves of the lower plate-like body. You can stay there.

Further, the depth of the grooves 4 and 5 is provided until it reaches the bottom of the parallel hollow holes 2 and 3, but by keeping the depth to reach the middle part, a decorative board rich in elegance is formed. be able to.

(Effects of the Invention) As described above, in the decorative board of the present invention, a plurality of parallel hollow holes communicating from one side end face to the other side end face are provided in the plate-like body in several stages, and the surface of the plate-like body is It is characterized in that a plurality of grooves are formed that communicate with the parallel hollow holes of any stage from the plate-shaped body. These hollow holes and grooves partially appear to the outside through the grooves, creating a varied three-dimensional effect.Depending on the depth of the grooves, parallel hollow holes in the middle section and parallel hollow holes up to the bottom step appear. It has an elegant and dignified exterior with an excellent design.

Furthermore, the parallel hollow holes in each stage that communicate with the grooves from the surface side function as a so-called long-tube resonator, exhibiting a sound-dampening effect similar to that of a Helmholtz resonator. The grooves have a complex step-like shape that can effectively diffuse and absorb sound, and the protrusions formed between adjacent grooves also act as reinforcing ribs. This results in a decorative board with extremely high strength.

Further, according to the method for manufacturing a decorative board of the present invention, several plate-like bodies each having a plurality of grooves formed on the surface thereof communicating between both side end faces are brought into contact with the smooth back surface of the adjacent plate-like body with the groove-formed surface. By laminating and integrating,
A laminated plate-like body is obtained in which the upper end opening of the groove is closed by the plate-like body laminated on the upper side to form a plurality of parallel hollow holes, and then, any desired area is removed from the surface of this laminated plate-like body. By carving a plurality of grooves reaching the hollow holes in the step, it is possible to form a decorative board having hollow holes and grooves of a desired shape and size, and also to create a combination with these hollow holes and grooves. It is possible to obtain a decorative board that can be modified in various ways and has a variety of three-dimensional shapes, and the manufacturing process is simple and production efficiency can be improved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a perspective view of a decorative board, FIG. 2 is a perspective view of a laminated plate,
FIG. 3 is a perspective view of a state in which a decorative board is formed from the laminated plate-like body. 1... Laminated plate-shaped body, 1a, 1b, 1c... Plate-shaped body, 2a, 2b, 2c... Groove, 2, 3... Parallel hollow hole, 4, 5... Groove.

Claims (1)

[Claims] 1. A plurality of parallel hollow holes are provided in a plate-like body in several stages, and a plurality of grooves are formed that communicate with the parallel hollow holes in any stage from the surface of this plate-like body. A decorative board that is characterized by 2. The decorative board according to claim 1, wherein the cross-sectional shape of the hollow hole is formed in a circular, triangular, polygonal, or other appropriate shape. 3. The method according to claim 1 or 2, characterized in that each groove provided on the surface of the plate-shaped body is provided in a direction intersecting the hollow hole at an arbitrary angle. Decorative board. 4. By stacking and integrating several plate-like bodies each having a plurality of grooves formed on their surfaces so that the groove-formed surfaces touch the smooth back surfaces of the adjacent plate-like bodies, the upper end of the groove can be A laminated plate is obtained in which the opening is closed by the plate laminated on the upper side to form a plurality of parallel hollow holes. A method for manufacturing a decorative board, characterized by carving a plurality of grooves that reach hollow holes. 5. The method for manufacturing a decorative board according to claim 4, wherein the grooves are carved in a direction that intersects the hollow holes.