継手、排水システム及び建築物

Japanese Patent JP7048812

B2

To provide a joint that can block smoke and flames generated at a lower part.SOLUTION: There is provided a resin collective joint 1 configured to be insertable into a floor slab S, comprising: a resin upper member 12 having a plurality of branch pipes 3 and projecting upward of the floor slab S in a state where the collective joint 1 is inserted through the floor slab S; a resin lower member 14 that is externally fitted and connected to the lower end of the upper member 12, whose upper part is embedded inside the floor slab S and whose lower part protrudes below the floor slab S in the state where the collective joint 1 is inserted through the floor slab S; a rectifying blade 16 located in the upper part of the lower member 14; and a thermal expansion material 30 provided on the peripheral wall of the lower member 14. The upper end of the thermal expansion material 30 is arranged at a position lower than the upper end surface of the floor slab S and higher than the upper end of the rectifying blade 16, and the lower end of the thermal expansion material 30 is arranged at a position lower than the upper end of the rectifying blade 16 and higher than the lower end of the rectifying blade 16 in the state where the collective joint 1 is inserted through the floor slab S.SELECTED DRAWING: Figure 3

Eiji Kimura
Saito So
Saita Fuchigami
Toshimaru Takeshi

JP2021186470A

April 05, 2022

November 16, 2021

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Sekisui Chemical Co.,Ltd.

E03C1/12; E03C1/122; F16L1/00; F16L5/00; F16L5/04; F16L41/03

JP2017014762A
JP2017014769A
JP2008111556A
JP2011257001A
JP2011196145A
JP2002323177A
JP2006342564A
JP2003222271A

Kazuzumi Nishizawa
Yuichiro Kawagoe
Makiko Otsuki
Hiroshi Yamaguchi

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