継手、排水システム及び建築物

Japanese Patent JP7223189

B2

To provide a joint capable of blocking smoke and flame generated below.SOLUTION: A resin collective joint 1 which is configured to be insertable into a floor slab S and includes a plurality of branch pipes 3 comprises a resin upper member 12 protruding above the floor slab S with the collective joint 1 being inserted into the floor slab S, a plastic lower member 14 that is externally fitted and connected to the lower end of the upper member 12 and whose upper part is located inside the floor slab S and whose upper end protrudes from the top surface of the floor slab S and whose lower part protrudes below the floor slab S with the collective joint 1 being inserted into the floor slab S, a blade member 18 that is inclined with respect to the axis of the lower member 14, and a thermal expansion material 30 provided on the peripheral wall of the lower member 14. With the collective joint 1 being inserted into the floor slab S, the top end of the thermal expansion material 30 protrudes from the top surface of the floor slab S, and the thermal expansion material 30 is positioned to be buried within the floor slab S, and the bottom end of the thermal expansion material 30 is positioned lower than the top of the blade member 18.SELECTED DRAWING: Figure 3

JP2023030835

METHOD FOR REPAIRING EXISTING DRAIN PIPE AND MEDICINE EJECTING DEVICE TO BE USED TO REPAIR EXISTING DRAIN PIPE

Eiji Kimura
Saito So
Saita Fuchigami
Toshimaru Takeshi

JP2022046552A

February 15, 2023

March 23, 2022

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Sekisui Chemical Co.,Ltd.

E03C1/122; E03C1/12; F16L5/00; F16L5/04; F16L55/00

JP2017014762A
JP2017014769A
JP2006342564A
JP2003222271A
JP2015175187A

Kazuzumi Nishizawa
Yuichiro Kawagoe
Makiko Otsuki
Hiroshi Yamaguchi

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