HOLE-CLOSING TOOL FOR FIRE-PROTECTION PARTITION BODY

Japanese Patent JP3935769

B2

PROBLEM TO BE SOLVED: To simplify structure and assembling to reduce a manufacturing cost and an installation cost, and to close a through-hole under an insertion condition as it is, even in any insertion position of a long body into the through-hole.
SOLUTION: This tool is provided with a hole lid body 2 formed of a disc- like refractory material capable of storing the long body C via a guide cut-in 2a through an outer circumferential edge, corresponding to the long body C inserted into the through-hole 1 of a fire-protection partition body B, to close the through-hole under the condition where an outside of the long body C is covered via a fire-resistant falling-preventive auxiliary means E, and a press metal 4 formed split-ring-likely and formed with a positioning protrusion 4A penetrated through the hole lid body 2 to abut to or come closer to the vicinity of an inner circumferential face of the through-hole 1.

JP7493886	Heat-expandable fire-resistant sheet, fireproofing method for penetration part using heat-expandable fire-resistant sheet, and fireproof structure for penetration part using heat-expandable fire-resistant sheet
WO/2022/050731	BATTERY MODULE, BATTERY PACK, AND VEHICLE
WO/2004/062056	ARRANGEMENT FOR IMPROVEMENT OF SECURITY OF ELECTRICAL DEVICE

Katsuji Takahara
Masahiro Iwasaki
Toshio Takada
Koji Kaneda

JP2002131987A

June 27, 2007

May 07, 2002

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Fujikura Ltd.
Nishi Nippon Electric Cable Co., Ltd.
Inaba Electric Industry Co., Ltd.

A62C3/16; F16L5/00; F16L5/02; F16L5/04; (IPC1-7): A62C3/16; F16L5/00; F16L5/02; F16L5/04

JP4049981A
JP10505267A
JP5035157U
JP61101419U
JP63007919U
JP56050878U

Shuichiro Kitamura

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