Title:
SHUTTER CASE IN SHUTTER DEVICE FOR BUILDING
Document Type and Number:
Japanese Patent JP2022071282
Kind Code:
A
Abstract:
To prevent deformation of a screw fastening portion of a bottom plate 8b of a shutter case 5, which is fastened to a bracket portion 6 via screws 10c, when the bottom plate 8b is subjected to a direct load of bending toward the outdoor side due to strong wind or an indirect load of the shutter curtain, which bends toward the outdoor side due to strong wind, contacting the bottom plate 8b in a pressurized manner.SOLUTION: With a diameter of an insertion hole 8e of a screw 10c being larger than a diameter of a screw, a rising reinforcing portion 8f is formed by burring to increase the strength.SELECTED DRAWING: Figure 7
Inventors:
SATOMI TOMOYA
Application Number:
JP2020180155A
Publication Date:
May 16, 2022
Filing Date:
October 28, 2020
Export Citation:
Assignee:
SANWA SHUTTER CORP
International Classes:
E06B9/17
Attorney, Agent or Firm:
Tetsuo Hirose
Yuko Suzuki
Yuko Suzuki