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Sound insulation floor structure and sound insulation floor components as well as method for reducing floor impact sounds

A floor and structure technology, which is applied in the field of sound insulation floor structure and sound insulation floor constituent parts and the reduction of floor impact sound, can solve the problem of unrecorded floor structure and sound insulation, and achieve good safety, improved sound insulation performance, and good walking feeling. Effect

Inactive Publication Date: 2013-01-09
KURARAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this document, there is no description about the floor structure and sound insulation.

Method used

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  • Sound insulation floor structure and sound insulation floor components as well as method for reducing floor impact sounds
  • Sound insulation floor structure and sound insulation floor components as well as method for reducing floor impact sounds
  • Sound insulation floor structure and sound insulation floor components as well as method for reducing floor impact sounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0203] Hereafter, although an Example demonstrates this invention more concretely, this invention is not limited by these Examples at all. Each physical property value of an Example was measured by the method shown below. In addition, "part" and "%" in an Example are a quality standard unless there is notice in advance.

[0204] (1) Weight per unit area (g / m 2 )

[0205] Measured based on JIS L1913 "Test methods for general short-fiber nonwoven fabrics".

[0206] (2) Thickness (mm), apparent density (g / cm 3 )

[0207] The thickness was measured based on JIS L1913 "Test methods for general short-fiber nonwoven fabrics", and the apparent density was calculated from the value and the value of the weight per unit area.

[0208] (3) Fiber bonding rate

[0209] Using a scanning electron microscope (SEM), a photograph of a cross-section of the structure was taken at a magnification of 100 times. Divide the photographed cross-sectional photograph of the structure in the thickne...

manufacture example 1）

[0217] As a heat-and-moisture adhesive fiber, a core-sheath type composite artificial fiber with a core component of polyethylene terephthalate and a sheath component of ethylene-vinyl alcohol copolymer (ethylene content 44 mol%, saponification degree 98.4 mol %) was prepared. Short fibers (manufactured by Kurare Co., Ltd., "Sofister", fineness 3 dtex, fiber length 51 mm, core-sheath mass ratio = 50 / 50, number of crimps 21 / 25 mm, crimp rate 13.5%).

[0218] Using this core-sheath composite staple fiber, fabricate about 50 g / m of basis weight by carding method 2 The carding net, the net overlapping 6 pieces, made a total unit area weight of about 300g / m 2 carding web.

[0219] This carded web was transferred to a belt conveyor equipped with a stainless steel endless web with 50 meshes and a width of 500 mm. In addition, a belt conveyor having the same wire mesh is installed above the wire mesh of the belt conveyor, and each rotates in the same direction at the same speed, and...

manufacture example 2）

[0224] In the production example 1 of the cushioning member, the number of laminated sheets using nets is 17 sheets, and the total weight per unit area is about 850 g / m 2 A non-woven fiber structure with a thickness of 12 mm was manufactured by adjusting the distance between the upper and lower conveyor belts by using the carded web. The apparent density is 0.07g / cm 3 . Furthermore, the fiber bonding ratio was 11% on the front side, 10% on the central portion, and 10% on the back side. This nonwoven fiber structure is cut and processed, and used as a cushioning member 1 .

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PUM

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Abstract

Intermediate layers including shock absorbing members formed of nonwoven fiber structures are interposed between a floor substrate member and a floor finish layer, resulting in a sound insulation floor structure being formed. Structures which contain moist heat adhesive fibers and wherein fibers are fixed by the fusion of these moist heat adhesive fibers, are used as said nonwoven fiber structures. As regards such a sound insulation floor structure, it is permissible, for example, to successively laminate a shock absorbing layer (2), a blank layer (3), a hard layer (4), and a floor finish layer (5) over the floor substrate member (1). In said structure, support members (6) exist between the shock absorbing layer (2) and the hard layer (4). The total area of the support members may account for 10 to 70% of the floor area. This sound insulation floor structure is such that the sinking of floor members due to walking is restricted, resulting in a satisfactory walking feeling being obtained, and that there is high performance for insulating floor impact sounds.

Description

technical field [0001] The present invention relates to a sound-insulating floor structure, a floor sound-insulating component, and a method for reducing floor impact noise, which are useful for reducing floor impact noise, for example, floor impact noise from the upper floors of a multi-story building (multi-story building). Background technique [0002] In multi-storey buildings such as apartments, buildings, and general houses, a soundproof floor structure is constructed to reduce floor impact noise from the upper floors. Floor impact sounds include light impact sounds (comparative high-frequency sound waves) such as impact sounds of dropped spoons and tableware, impact sounds caused by walking in slippers, and impact sounds of children jumping from sofas. There is a sound insulation floor structure that has sound insulation performance against impact sounds with a wide range, such as impact sounds or impact sounds caused by fast walking (comparative low-frequency sound w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F15/20E04F15/18
CPCE04F15/203E04F15/22E04B1/62E04F15/225E04F15/20E04B1/84E04B1/98E04F15/02044E04F15/107E04F15/206E04B2001/8466E04F2290/044E04F2290/041E04F2015/02055
Inventor 宫家登高松正彦金泥秀纪平田和利林公平清冈纯人足立笃美小池长小泉聪
Owner KURARAY CO LTD
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