SOUND INSULATING FLOOR AND FLOOR BED PANEL

Japanese Patent JP3791374

B2

PROBLEM TO BE SOLVED: To provide a sound insulating floor capable of reducing the level of sounds caused by impacts on the floor, such as the level of sounds caused by heavy objects on the floor, without using glass wool, and a floor bed panel for use with the sound insulating floor.
SOLUTION: A hollow bed panel 40 for use with the sound insulating floor 10 has cavities each having an approximately trapezoidal cross section and formed at regular intervals, and a plurality of openings leading to the cavities are formed on the slab 20 side face of the hollow bed panel. The openings are formed in predetermined positions such that they serve as resonant pipes for sounds caused by impacts on the floor, having wavelengths which each opening is designed to absorb. Inside the cavity, as a sound wave of the resonating frequency repeats oscillations, its energy is consumed by friction against interior wall surfaces and by viscosity among air particles at open ends, whereby the sound waves around that frequency can be absorbed.

JPH082616	[Title of Invention] Floor material and method for manufacturing the same.
JPS63304873	SOUNDPROOF STRUCTURE OF FLOOR PANEL
JP2023175573	DRY DOUBLE-FLOOR STRUCTURE, FLOOR PANEL, AND SUPPORTING LEG

Tanase Rento

JP2001289644A

June 28, 2006

September 21, 2001

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Yamaha Corporation

E04F15/20; E04B1/86; E04B5/43; E04F15/00; (IPC1-7): E04F15/20; E04F15/00

JP63165644A
JP3176560A
JP7302087A
JP55022737U
JP2001003482A
JP62001969A
JP63147059A
JP11152845A
JP2000075866A
JP9213541A

川▲崎▼ 研二

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