Title:
下枠構造及び建具
Document Type and Number:
Japanese Patent JP6841723
Kind Code:
B2
Abstract:
To suppress deterioration of fireproof performance.SOLUTION: A lower frame structure 5 is a lower frame structure having a lower frame 22 provided at an opening of a building body B. The lower frame 22 includes a hollow portion 71. In the hollow portion 71, a reinforcing member 6 is provided. An upper surface 712a of a lower wall portion 712 constituting the hollow portion 71 has an inclined surface 712b inclined downward toward an outdoor side. The reinforcing member 6 has an upper facing surface 614 opposed to a lower surface 711b of an upper wall portion 711 constituting the hollow portion 71, a lower opposing surface 631 opposed to the upper surface 712a of the lower wall portion 712, and a protruding portion 64 protruding downward from the lower opposing surface 631.SELECTED DRAWING: Figure 3
Inventors:
Teruhisa Ito
Ryuichi Tamura
Ryuichi Tamura
Application Number:
JP2017111834A
Publication Date:
March 10, 2021
Filing Date:
June 06, 2017
Export Citation:
Assignee:
YKK AP Inc.
International Classes:
E06B5/16; E06B1/16; E06B1/70
Domestic Patent References:
| JP2015209659A | ||||
| JP10115152A | ||||
| JP2015232225A | ||||
| JP201637782A | ||||
| JP2014190079A |
Foreign References:
| US6327826 |
Attorney, Agent or Firm:
Sakai International Patent Office