Title:
防火ダンパー
Document Type and Number:
Japanese Patent JP6885743
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fireproof damper that can cope with requested specifications and can be configured easily.SOLUTION: A fireproof damper includes: intermediate posts 51 to 53 that are arranged in a casing 2 and are extended in a height direction, and support a damper shaft 3; and a bearing ball bearing 6 that is provided in the intermediate posts 51 to 53 and rotatably journals the damper shaft 3. An opening/closing blade 4 is divided into a plurality of portions in a width direction with the intermediate posts 51 to 53 as division points, and the number of the intermediate posts 51 to 53 to be arranged and the arrangement positions are set such that the amount of deformation of a predetermined part becomes a predetermined amount or smaller at predetermined fire-resisting time.SELECTED DRAWING: Figure 1
Inventors:
Kei Yamazaki
Yuya Otani
Koji Moriwaki
Shinji Nakamura
Shogo Sato
Masahiro Odabe
Tadashi Takida
Daisuke Fujimoto
Shigeki Hasegawa
Ogawa Oshu
Masao Uesaka
Naohiro Hayashi
Yuya Otani
Koji Moriwaki
Shinji Nakamura
Shogo Sato
Masahiro Odabe
Tadashi Takida
Daisuke Fujimoto
Shigeki Hasegawa
Ogawa Oshu
Masao Uesaka
Naohiro Hayashi
Application Number:
JP2017020370A
Publication Date:
June 16, 2021
Filing Date:
February 07, 2017
Export Citation:
Assignee:
Chugoku Electric Power Co., Inc.
TEPCO Holdings Co., Ltd.
TEPCO Holdings Co., Ltd.
International Classes:
F24F13/15; A62C2/24
Domestic Patent References:
| JP6200948A | ||||
| JP2015114090A | ||||
| JP3192805U | ||||
| JP1091837U |
Foreign References:
| GB2194329A | ||||
| US9851121 |
Attorney, Agent or Firm:
Harushima Shigetokiro