Floor structure and floor base panel

(19)

(11)

EP 1 298 266 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	12.11.2003 Bulletin 2003/46

(43)	Date of publication A2:
	02.04.2003 Bulletin 2003/14

(21)	Application number: 02021662.8

(22)	Date of filing: 27.09.2002

(51)	International Patent Classification (IPC)⁷: E04F 15/024

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

27.09.2001 JP 2001296340
06.03.2002 JP 2002060184

(71)	Applicant: YAMAHA CORPORATION
	Hamamatsu-shi Shizuoka-ken (JP)

(72)	Inventors:
	Tanase, Rento Hamamatsu-shi, Shizuoka-ken (JP) Honji, Yoshikazu Hamamatsu-shi, Shizuoka-ken (JP) Kobayashi, Tetsu Hamamatsu-shi, Shizuoka-ken (JP)

(74)	Representative: Emde, Eric et al
	Wagner & Geyer, Gewürzmühlstrasse 5 80538 München 80538 München (DE)

(54)	Floor structure and floor base panel

(57) In the floor base panel (40), an area on the support board (33) of the vibration proof support leg (30) is formed solid, and in the other area, a plurality of cavities (41) extending in the parallel direction to the floor surface are formed. Thereby, because the vibration energy propagated from the impact point of the floor base panel (40) is reflected on the boundary between the cavity formation area and the sold area, and repeatedly passes the cavity formation area, it is attenuated in a short time, and the vibration energy or sound energy transmitted to a slab (20) can be reduced.

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