Title:
遮音構造
Document Type and Number:
Japanese Patent JP7435271
Kind Code:
B2
Abstract:
To provide a sound insulation structure which more effectively absorbs vibrations of a face bar.SOLUTION: A sound insulation structure includes: a face bar; a support mechanism; a first dynamic damper for absorbing vibrations of the support mechanism; and a second dynamic damper for absorbing vibrations of the face bar. A first elastic member of the first dynamic damper contains rubber. A second elastic member of the second dynamic damper contains at least one of glass wool and rock wool. The first dynamic damper has natural vibration frequency tuned so as to absorb vibration in a frequency band that is previously set to exceed a predetermined floor impact sound level in a predetermined frequency band in the floor impact sound levels of vibrations absorbed by the second dynamic damper.SELECTED DRAWING: Figure 5
Inventors:
Hideo Nagamatsu
Application Number:
JP2020096305A
Publication Date:
February 21, 2024
Filing Date:
June 02, 2020
Export Citation:
Assignee:
Sekisui House, Ltd.
International Classes:
E04B1/86; E04B1/98; E04B9/00; F16F15/02
Domestic Patent References:
| JP2014125790A | ||||
| JP2018123669A | ||||
| JP2018204627A | ||||
| JP2018028177A |
Foreign References:
| US6267361 |
Attorney, Agent or Firm:
Masataka Kotani
Atsushi Yamamoto
Atsushi Yamamoto