Title:
防火戸
Document Type and Number:
Japanese Patent JP4951155
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To provide a fire door in which a fire-fighting performance is improved in the case where a concealed door closer is mounted.SOLUTION: A fire door comprises a door body 1 in which a door closer C can be mounted, a gutter 3 which is disposed at a lower side of a mounting position of the door closer C and collects a hydraulic oil leaked from the door closer C, and a tray 4 which is disposed at a lower side of the gutter 3 and stores the hydraulic oil collected by the gutter 3. Since the hydraulic oil leaked from the door closer C is collected by the gutter 3 and stored in the tray 4, the hydraulic oil is not dripped on a lower side of the fire door D, thereby preventing fire spread. Even if the hydraulic oil stored in the tray 4 catches fire, the gutter 3 becomes a cover of the tray, such that no flame comes out of an upper side of the fire door D.
Inventors:
Ichiro Mino
Yukio Omori
Tsuru Susumu
Okada Tsuyoshi
Akihiro Seike
Yukio Omori
Tsuru Susumu
Okada Tsuyoshi
Akihiro Seike
Application Number:
JP2012009757A
Publication Date:
June 13, 2012
Filing Date:
January 20, 2012
Export Citation:
Assignee:
Nikko Sash Co., Ltd.
International Classes:
E06B5/16; E06B3/82
Domestic Patent References:
| JP9209662A | ||||
| JP648704U |
Attorney, Agent or Firm:
Yasunobu Yamauchi
Hiroshi Nakai
Shin Yamauchi
Hiroshi Nakai
Shin Yamauchi