Title:
SHUTTER DEVICE FOR BUILDING
Document Type and Number:
Japanese Patent JP2022102295
Kind Code:
A
Abstract:
To allow replacement of a shutter curtain 2 in which a guide rail 3 as an opening/closing guide of the shutter curtain 2 has an inside/outside double rail structure capable of removing an inner rail part 7 from an outer rail part 6 and improve the removal prevention strength of the shutter curtain 2 when the shutter curtain 2 is deflected toward outdoor side by receiving negative pressure.SOLUTION: A second locking arm part 18e, formed extending at the indoor side of a windproof hook 18 provided at a shutter curtain 2, is extended at an obtuse angle relative to a hook proximal part 18c, and when the second locking arm part 18e is locked with a locking piece 12c, three points of a second corner part 18l of the second locking arm part 18e, a first locking arm part 18d and a curtain surface of the shutter curtain 2 are supported at a guide rail 3 side to improve the removal prevention strength.SELECTED DRAWING: Figure 10
Inventors:
YAMAFUJI YOSHIHIRO
Application Number:
JP2020216951A
Publication Date:
July 07, 2022
Filing Date:
December 25, 2020
Export Citation:
Assignee:
SANWA SHUTTER CORP
International Classes:
E06B9/17; E06B9/58
Attorney, Agent or Firm:
Tetsuo Hirose
Yuko Suzuki
Yuko Suzuki
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