JPH05248073A - Soundproof floor plate - Google Patents

Abstract

PURPOSE:To keep the effect as soundproof floor plate for a long period and improve the yield of an expensive hard plate member by keeping the characteristic of the soundproof member in the initial state without compressing the soundproof member interposed between the hard plates, by the existence of a splice joint. CONSTITUTION:The first hard plate 10, first sheet shaped elastic body 20, and the second hard plate 30 are attached in this order. A plurality of unit floor plates (b) having each recessed groove 15 on four side surfaces are assembled by inserting a splice joint 40 into the recessed groove, and a soundproof floor plate is constituted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof floorboard, and more particularly to a soundproof floorboard suitable for being directly applied to a floor surface having a hard surface such as a concrete slab.

[0002]

2. Description of the Related Art Heretofore, as a constitution of a floor portion in a middle-high-rise house or the like, it has been general that carpets are directly adhered to a concrete slab through an elastic material or a felt material which functions as a soundproof material. However, since carpets are liable to get dirty, it is desirable to replace them after using them for a certain period of time.
Improvement was desired.

Therefore, instead of sticking carpets, a method of directly sticking a wooden floor material to a concrete floor has been increasingly used. However, since the wooden flooring material is inferior in sound insulation and cushioning property to the carpets as it is, the wooden flooring material is not always satisfactory in habitability. In order to solve such a drawback, a method in which a synthetic resin foam is adhered to the entire back surface of the wooden board has been proposed, but it was not sufficient, and therefore the present inventors further improved its soundproofing property. With the addition of
As shown in FIG. 5, a sheet 52 made of a material such as a foamed synthetic resin and having a certain elasticity and a perforated wooden board 53 are sequentially attached to the back surface of the wooden board 51, and a male seed 54 and a female seed are further provided on four laps thereof. 55 is formed to form a rectangular wooden board 50, and a plurality of the rectangular wooden boards 50 are joined together with the male seeds 54 and the female seeds 55 meshed with each other, and then the material is made of a material such as a polyolefin foam. A soundproof wood-based flooring material has been developed in which the following cushioning material 56 is attached to almost the entire back surface of the perforated woody board 53.

[0004]

The sound-proofing wooden flooring material according to the above-mentioned proposal is sound-proofing as compared with the conventional wooden flooring material because the elastic sheet is interposed between the wooden boards and the back surface is provided with the cushioning material. Although there was a marked improvement in the above, there were still problems to be solved. That is, since the conventional soundproof wood-based flooring material has a basic structure of engagement between male and female seeds, the elastic sheet interposed between the wooden boards to fulfill the soundproofing function is used during flooring. When it is used for a certain period of time, it is deformed in the thickness direction and the physical properties such as density are changed, resulting in a phenomenon in which the required function is somewhat deteriorated.

Forming male and female berries on the four circumferences of a wooden board requires an extra material area for the effective floor area, especially for the portion where the male berries are formed, and is a raw material. This has led to a decrease in the yield of wood materials. In particular, when a large number of small-sized wooden boards are gathered together to form such a flooring material, the yield rate is further reduced, so the combination of flooring materials must be limited to some extent. ..

An object of the present invention is to eliminate the above-mentioned inconvenience, and more specifically, a compressive stress more than necessary is applied to an elastic body laminated between hard plates constituting a substrate as a floor material. Another object of the present invention is to provide a soundproofing floorboard which can prevent the addition of the above-mentioned substances and thereby maintain the physical properties of the elastic sheet in the initial state for a long time. It is still another object of the present invention to provide a soundproof floorboard in which the hard plate constituting the flooring material is utilized without waste and the yield is improved.

[0007]

According to the present invention, in order to achieve the above object and solve the problems, a first hard plate, a sheet-like elastic body and a second hard plate are laminated in this order. It is a square floor board, and a unit floor board in which concave grooves are formed in the surface portions of the four side surfaces of the first hard plate and the second hard plate facing each other is fitted into the concave grooves. Disclosed is a soundproof floorboard having a plurality of assembled parts.

At least the width dimension of the second hard plate is set to the first width.
It is a particularly preferable embodiment to use a unit floorboard formed to be narrower than the corresponding lateral width dimension of the hard plate, or to further bond the second thin plate-shaped elastic body to almost the entire rear surface side.

[0009]

The present invention will be described in more detail based on the following examples. 1 is a plan view showing an embodiment of a soundproof floor board formed according to the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. The soundproof floor board a of this embodiment is
Basically, it is composed of a plurality of unit floorboards b and a thin plate-shaped elastic body c attached to the back surface of the unit floorboard b by an appropriate adhesive means.

The unit floorboard b has a rectangular shape, and is made of plywood, particle board, hard board, MDF (medium fiber board).
A first hard plate 10 made of a wood plate, etc., and a first sheet-like elastic body 2 having elasticity attached to the back surface of the first hard plate with a predetermined space left at its four edges.
0, and the dimension in the length direction is the same as the length of the first hard plate, but the width dimension is made of the same material as the first hard plate that is formed slightly narrower than the width of the first hard plate. The second hard plate 30 and the second hard plate 30 are laminated in this order with an appropriate adhesive. Further, the second hard plate 30 has a plurality of openings 31 penetrating in the thickness direction, and further, the four peripheral edges on the front surface side of the first hard plate are chamfered 11.

Since the unit floor board b has the above-described structure, at least the first sheet-like elastic body 20 is provided at the four peripheral edges of the joining surfaces of the first hard board 10 and the second hard board 20 which face each other. When a plurality of recessed grooves 15 corresponding to the thickness of the first hard plate 10 are arranged in a state where the side portions are in contact with each other as shown in the drawing, the adjacent long sides of each first hard plate 10 are in contact with each other. However, a predetermined gap 32 is formed between the adjacent long sides of each second hard plate 30 (FIG. 2).

A plurality of unit floor boards b are assembled in a factory in a shape as shown in FIG. FIG. 3 shows the shape of an embodiment of the assembly 50 used in the assembly. The agitator 50 of this embodiment is formed of a resin material such as vinyl chloride resin or ABS resin,
It is composed of a flat portion 51 at the center in the width direction and a chevron portion 52 on the side thereof. When the unit floorboards b, b are arranged so as to be in contact with each other as shown in FIGS. 1 and 2, the horizontal width W of the toyozane 50 is the concave grooves 15, 15 formed in the unit floorboards b which are in contact with each other.
Is formed to have a width that is substantially the same as or slightly smaller than the lateral width of the flat space portion formed by
The length of the space formed by 15 is substantially the same as or slightly shorter than the length of the space. Furthermore, Yamato Izane 50 Yamagata 5
The thickness H of 3 is set to be slightly larger than the thickness of the space, that is, the height of the concave groove 15 formed in the unit floor plates b that are in contact with each other.

A plurality of unit floorboards b are assembled by using the above-mentioned tongue 50 so as to have the shape of a soundproof floorboard a as a final product as shown in FIG. As shown in FIG. 2, a portion of each unit floorboard b in which each side is opposed to each other in FIG. 1 is assembled by inserting a groove 50 into the groove 15. Almost half of the width of the tongue 50 is inserted in the two sides (the upper side and the left side in FIG. 1) of the concave groove located on the four laps, and the other half is exposed. It is in the state of having done.

If necessary, a second thin plate-like elastic member c such as a foamed synthetic resin sheet is attached to the back surface of the soundproof floor board a assembled as described above, that is, the back surface of the second hard board 30. .. A required number of the soundproof floor boards a of the present invention are placed on a slab such as a concrete slab.
The required floor surface is formed by inserting 0 into the concave groove of the adjacent soundproof floor board and laying them while joining them.

As is clear from the above description, the floor body formed by using the soundproof floor board a of the present invention has unit floor boards b, b.
Izane is inserted near the joint part of. Therefore, even if stress is applied repeatedly or intensively from above the floor surface by a person walking or placing an article,
Since the stress is slightly supported by the rough part, it hardly acts as a compressive stress on the first sheet-like elastic plate interposed between the two hard plates for the purpose of soundproofing. Thereby, the first sheet-shaped elastic body can maintain the initial state for a long period of time. Furthermore, this prevents the floor surface from sinking more than necessary when a person walks on the floor surface, and the feeling of walking is not impaired.

Further, as is apparent from FIG. 2, the unit floorboard b constituting the soundproof floorboard a according to the present invention is joined in a state where the respective constituent members, that is, the hard plates 10 and 30 are not fitted to each other. ing. Therefore, compared to the case of joining male and female as in the conventional floor material shown in FIG. 5, when manufacturing a soundproof floor board having the same effective area, the material can be saved by the amount corresponding to that male. Therefore, the yield of expensive hard members can be improved. That is, when the floorboards having the same effective area are manufactured by collecting a large number of unit floorboards of various sizes, as shown in FIG. However, this means that there is no need to worry about a decrease in the yield of raw materials, and it is possible to manufacture a soundproof floorboard that is more economical and has a richer design.

When manufacturing a unit floorboard having a shape as shown in FIG. 1 or 4 in a factory, each constituent member including a sword is laminated while applying necessary adhesives, and then pressed by a press. Forming method, or preparing different types of unit floorboards b, b'and a plurality of types of joints necessary for joining them separately and artificially assembling each unit floorboard, etc. , Any method can be used. At that time, since the unit floorboard b of the present invention has the sheet-like elastic body interposed therebetween, the thickness of the rough edge is formed to be slightly larger than the height of the concave groove, and it is Since the elastic property of the thin plate-like elastic body can be used for press-fitting, the assembly will be sandwiched between both the hard plates in a pressurized state after the assembly, and the slip-out can be prevented. This facilitates handling of the soundproof floorboard during transportation or construction.

Further, in this embodiment, the lateral width dimension of the second hard plate 30 is formed narrower than the corresponding lateral width dimension of the first hard plate 10, and the gap 32 is provided therein. Thus, the soundproof floor board a can sufficiently follow the unevenness of the concrete slab surface. That is, in the place where the concrete slab surface is convex upward, the gap 3
2 shrinks to fit the soundproof floor board in an upwardly convex shape, and when the concrete slab surface is in a downwardly convex shape, the slab slightly slips out of the groove to adapt to the downwardly convex shape. I can go. Furthermore, the soundproofing effect can be further improved by further adhering the second thin plate-shaped elastic body c to almost the entire back surface side of the assembled second hard plate.

The above description is merely one example of the soundproof floorboard according to the present invention, and there are many other modifications. For example, the material forming the first and second hard plates is not limited to the wood plate as described above, and may be an inorganic plate such as marble, artificial marble, or a ceramic plate. A wood board may be used as the hard board, and an inorganic board may be used as the other hard board, or a wood board and an inorganic board may be mixed and used as one hard board.
Moreover, the thickness is not particularly limited, but as a floor material,
A diameter of about 12 mm is preferable. Further, a decorative sheet such as a veneer, a decorative paper, a vinyl chloride decorative sheet or the like may be attached to the surface, or a decorative paint layer may be formed.

Further, as the second hard plate, the one in which a large number of through holes are formed is shown from the viewpoint of enhancing the soundproof effect in the above-mentioned embodiment, but it is directed from the back side toward the first sheet-like elastic plate. Thus, groove-shaped recesses that penetrate or do not penetrate may be formed vertically or horizontally or only in one direction, thereby improving the soundproofing property and further improving the conformability to the unevenness of the base floor surface. Good.

It is easily understood that the material used for the purpose is not limited to the synthetic resin but may be made of metal. Further, it is preferable that the material is slightly elastic from the viewpoint of assembling, but for the above reason, it may be molded with a material having high rigidity. The cross-sectional shape is not limited to the one shown in the figure, and any shape such as one having locking portions of other shapes formed at both ends or one having a flat shape can be used.

As the material for the first sheet-like elastic body, in addition to foamed synthetic resin, a sheet body of foamed rubber, synthetic rubber, natural rubber or the like is preferable, and further, a sheet obtained by adhering a nonwoven fabric, Japanese paper or the like to the sheet. It can also be used. By doing so, the adhesive strength between the sheet and the hard plate can be improved. The thickness is not particularly limited, but is preferably about 1 to 3 mm.

As the material of the second thin plate-like elastic body, foam synthetic resin (for example, foam of polyurethane, polyethylene, polystyrene, etc.), foam natural rubber, felt, synthetic resin fiber (for example, nylon, tetron, acrylic). Fibers etc. braided into a mat shape can be appropriately used, or can be combined and used as, for example, a two-layer structure. Furthermore, it is possible to further improve the soundproofing property by forming irregularities on the back surface thereof.
The thickness is not particularly limited, but a thickness of about 1.5 to 8 mm is preferable.

Further, the concave grooves formed on the four rounds of each unit floor plate are not limited to the thickness formed by the first sheet-like elastic body as in the above-mentioned embodiment, but the first and the second grooves are formed. Two
Notches may be provided in both or one of the facing surface portions of the hard plate to form a groove having a larger thickness. In a special case, both of the facing surface portions of the first and second hard plates may be formed. Alternatively, a concave groove having a smaller thickness may be formed by attaching a thin plate member to one side. The thickness of the groove may be appropriately set in relation to the thickness of the groove, taking into consideration the material of the groove to be used, the strength required for the joint portion, and the like.

[0025]

INDUSTRIAL APPLICABILITY The soundproof floorboard according to the present invention can maintain the physical properties of the soundproofing material to be interposed in the initial state, so that the effect as a soundproof floorboard can be maintained for a long period of time, and an expensive hard board. The yield of the material can be improved, and further, since the sinking of the floor board is limited, a better walking feeling can be given.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a soundproof floor board according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view showing an embodiment of Yatozan.

FIG. 4 is a plan view of another embodiment of the soundproof floor board according to the present invention.

FIG. 5 is a cross-sectional view of a conventional soundproof floor board.

[Explanation of symbols]

a ... soundproof floor board, b ... unit floor board, 10 ... first hard board, 1
5 ... Recessed groove, 20 ... 1st sheet-shaped elastic body, 30 ... 2nd hard plate, c ... 2nd thin plate-shaped elastic body

─────────────────────────────────────────────────── ───Continued from the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location E04F 15/18 J 7805-2E

Claims (3)

[Claims] 1. A first hard plate, a first sheet-like elastic body,
And a rectangular floor plate in which a second hard plate is laminated in this order, and a unit floor plate in which concave grooves are formed in the surface portions of the four side surfaces of the first hard plate and the second hard plate that face each other. A soundproof floor board, wherein a plurality of the soundproof floor boards are assembled by fitting into the groove. 2. The soundproof floor board according to claim 1, wherein at least the lateral width dimension of the second hard board of the unit floor board is formed narrower than the corresponding lateral width dimension of the first hard board. .. 3. The soundproof floorboard according to claim 1, further comprising a second thin plate-shaped elastic body further bonded to substantially the entire rear surface.