JP2552694Y2 - Wooden soundproof floorboard - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention mainly relates to a wood-based sound-insulating floorboard directly adhered to a concrete floor slab of an apartment house.

[Prior Art] Conventionally, in order to cut off living noise from the floor surface, a configuration in which a floor is supported on a concrete floor slab with a stand so as to minimize contact between the concrete floor slab and the floor plate to provide a space, or a concrete floor is used. A configuration in which a glass wool mat or vibration-proof rubber is entirely interposed between the slab and the floor plate has been adopted.

[Issues to be solved by the invention] However, floors with such a configuration not only increase the height of the floor and lower the height of the ceiling to reduce the indoor space,
Construction also requires a special construction method, and there is a problem that construction is difficult with ordinary carpenters. It is an object of the present invention to provide a wood-based sound-insulating floorboard that is excellent in sound insulation performance without reducing the indoor space and that has good workability.

[Means for Solving the Problem] The constitution of this invention is a wooden decorative plate 2 having a thickness of 2.0 to 3.5 mm with a thin decorative veneer 1 adhered to the surface, a C-type hardness meter specified in JIS K 6301. The hardness is in the range of 10 to 40 degrees and the thickness is 0.
Rubber or synthetic resin sheet 3 of 5 to 2.0 mm, thickness of 2 to 4 mm
Wood substrate 4, rubber or synthetic resin sheet 5 having a thickness of 0.5 to 3 mm with a hardness of 10 to 40 degrees by a C-type hardness meter specified in JIS K 6301, wooden substrate 6 having a thickness of 5 to 7 mm , JIS L 1
The cloths 7 having a thickness in the range of 2 to 20 mm and a bulk specific gravity in the range of 0.02 to 0.15, which are measured by the method specified in No. 096, are sequentially attached via an adhesive, and only the peripheral portion of the wooden substrate 6 is And a nut 8 for fitting is formed.

Plywood, particle board, MDF, LVL, or the like can be used for the board of the wooden decorative board 2 and the wooden boards 4 and 6. Particularly, even if the plywood is thin, it has rigidity and can be preferably used. As the cloth-like material 76, a light and bulky cloth-like material such as a woven fabric, a nonwoven fabric, and a felt can be used. Each of them is bonded by a common synthetic resin adhesive such as rubber, urethane, acrylic resin or the like. In order to improve the familiarity with the concrete floor slab surface and to prevent warpage, cut grooves having a width of about 3 mm are formed at regular intervals from the lower surface of the wooden substrate 6 to the position reaching the wooden substrate 4 in the short side direction. You may.

[Function] The vibration from the floor is gradually reduced by a rubber or synthetic resin sheet having a specific hardness and thickness interposed over multiple layers, and noise is cut off by the lowermost cloth-like material.
Further, since the fitting fruit is formed only on the thickest wooden substrate, the actual processing accuracy and strength can be increased.

[Examples] (Example 1) A wooden decorative board of 2.5 mm thickness, in which a decorative veneer of 0.5 mm thick is adhered to the surface of a 2 mm thick plywood, JIS K 106
The hardness is 27 degrees and the thickness is 1mm according to the C-type hardness meter specified in No. 3.
Rubber-based vibration-damping sheet, plywood with a thickness of 2.5 mm, a rubber-based vibration-damping sheet with a hardness of 27 degrees and a thickness of 2 mm with a C-type hardness meter specified in JIS K 6301, Processed thickness
A 5 mm plywood and a nonwoven fabric having a thickness of 2 mm and a bulk specific gravity of 0.1 measured by the method specified in JIS K 1096 were sequentially bonded to each other via a vinyl resin adhesive to obtain a wood-based soundproof floor board.

(Example 2) In Example 1, a 3 mm wide cut groove was formed at intervals of 100 mm from the lower surface of the lowermost plywood to a position reaching the intermediate plywood in the short side direction, and attached to the lower surface of the lowermost plywood. In place of the non-woven fabric, a non-woven fabric having a thickness of 4 mm and a bulk specific gravity of 0.03 measured by the method specified in JIS L 1096 was attached to obtain a wood-based sound-insulating floor panel to be obtained.

Thickness of the wood-based soundproof floorboards of the above-mentioned first and second embodiments is
It is fixed on a concrete floor slab equivalent to 150 mm with an adhesive, a light impact sound is applied by a tapping machine from the upper surface of the wooden soundproof floor plate, and the noise at each frequency is measured using a sound level meter on the lower surface of the concrete floor slab. Sound insulation grade (L) values were determined. As a result of the test, as shown in FIG. 2, the performance of Example 1 passed L-50, and the performance of Example 2 passed L-45.

[Effects of the Invention] According to the invention, the overall thickness can be made smaller than that of the conventional soundproof floor, without sacrificing the space in the room, and the sound insulation grade value of L-45 to 50 is excellent. Demonstrated performance. Further, since the cloth-like material, the rubber or the synthetic resin sheet has cushioning properties, it is excellent in walking feeling, and has an effect of well absorbing unevenness of a concrete floor slab and smoothing the floor surface. Further, since the fitting nut is formed only on the thickest wooden substrate at the lowermost layer, thickness unevenness does not occur even during actual processing, and occurrence of poor fitting can be reduced even during construction. As described above, it is possible to provide a wood-based sound-insulating floorboard that is excellent in sound insulation performance without making the indoor space narrow and has good workability.

[Brief description of the drawings]

FIG. 1 shows a side view of the wooden soundproof floorboard of the present invention, and FIG. 2 shows the results of a sound insulation class test by a lightweight floor impact test of the wooden soundproof floorboard of the embodiment. DESCRIPTION OF SYMBOLS 1 ... decorative veneer, 2 ... wood decorative board, 3 ... rubber or synthetic resin sheet, 4 ... wooden board, 5 ... rubber or synthetic resin sheet,
6 ... wood substrate, 7 ... cloth, 8 ... fruit for fitting

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-78961 (JP, A) JP-A-1-142169 (JP, A) JP-A-63-78960 (JP, A) Jpn. Microfilm (JP, U) photographing the contents of the specification and drawings attached to the application for No. 84566 (Japanese Utility Model Application No. 63-195044)

Claims (1)

(57) [Scope of request for utility model registration] 1. A wooden decorative board (2) having a thickness of 2.0 to 3.5 mm with a thin decorative veneer (1) adhered to the surface, and a hardness of 10 to 40 as measured by a C-type hardness meter specified in JIS K 6301. The thickness is 0 in the range of degrees.
5 ~ 2.0mm rubber or synthetic resin sheet (3), thickness 2 ~
4mm wood substrate (4), rubber or synthetic resin sheet (5) with hardness of 10 to 40 degrees and a thickness of 0.5 to 3mm according to JIS K 6301 with a thickness of 0.5 to 3mm, thickness of 5 to 5 7mm wood substrate (6), cloth-like material (7) whose thickness measured by the method specified in JIS L 1096 is in the range of 2 to 20mm and bulk specific gravity is in the range of 0.02 to 0.15, respectively, via an adhesive A wood-based sound-insulating floor panel characterized in that a fitting fruit (8) is formed only on a peripheral portion of a wood-based substrate (6).