| (19) |
 |
|
(11) |
EP 2 014 846 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
18.03.2009 Bulletin 2009/12 |
| (43) |
Date of publication A2: |
|
14.01.2009 Bulletin 2009/03 |
| (22) |
Date of filing: 27.09.2002 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (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 |
| (30) |
Priority: |
27.09.2001 JP 2001296340
06.03.2002 JP 2002060184
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
02021662.8 / 1298266 |
| (71) |
Applicant: Yamaha Corporation |
|
Hamamatsu-shi, Shizuoka (JP) |
|
| (72) |
Inventors: |
|
- Rento, Tanase
Hamamatsu-shi
Shizuoka-ken (JP)
- Yoshikazu, Honji
Hamamatsu-shi
Shizuoka-ken (JP)
- Tetsu, Kobayashi
Hamamatsu-shi
Shizuoka-ken (JP)
|
| (74) |
Representative: Emde, Eric |
|
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.