Title:
BUILDING CEILING STRUCTURE
Document Type and Number:
Japanese Patent JP2016148192
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a ceiling structure capable of reducing heavy floor impact without increasing the risk of falling off of a ceiling board, which can be efficiently constructed.SOLUTION: The ceiling structure is provided with a TMD (tuned mass damper) (16) to a ceiling joist (12) of an under-layer ceiling backing material (6) to thereby reduce a heavy floor impact which is generated when a heavy matter impacts on an upper-layer floor structure (4). The TDM includes: a spring member (18) bridged across a pair of neighboring ceiling joists; and a weight member (20) attached to the spring member in an intermediate part. Since the TMD is not directly attached to a ceiling board but attached to the ceiling joist, the risk of falling off of the ceiling board is not increased. Also, since the TMD has a structure to be bridged across a pair of neighboring ceiling joists, the TMD can be easily installed.SELECTED DRAWING: Figure 2
Inventors:
IWAMOTO TAKESHI
SHIMADA YASUSHI
KOBAYASHI HIDEAKI
SHIMADA YASUSHI
KOBAYASHI HIDEAKI
Application Number:
JP2015025565A
Publication Date:
August 18, 2016
Filing Date:
February 12, 2015
Export Citation:
Assignee:
SUMITOMO MITSUI CONSTRUCTION CO LTD
International Classes:
E04B9/00; E04B1/98; E04B9/18
Domestic Patent References:
| JPH09317075A | 1997-12-09 | |||
| JP2006077517A | 2006-03-23 | |||
| JP2013147871A | 2013-08-01 | |||
| JPH09317145A | 1997-12-09 | |||
| JP2013238306A | 2013-11-28 |
Foreign References:
| US6178705B1 | 2001-01-30 |
Attorney, Agent or Firm:
Patent business corporation Oshima patent office
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