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Title:
LID OPENING TOOL INSERTION HOLE OPENING/CLOSING DEVICE OF LID FOR UNDERGROUND STRUCTURE
Document Type and Number:
Japanese Patent JP2010084410
Kind Code:
A
Abstract:

To provide a lid opening tool insertion hole opening/closing device of a lid for an underground structure capable of smoothly and easily opening and closing a lid opening tool insertion hole, miniaturizable and weight-reducible, and easily installable to a lid body.

This lid opening tool insertion hole opening/closing device of a lid for an underground structure includes a closing plug (44) for openably closing the insertion hole (12) of the lid body (2) into which a lid opening tool is inserted. The closing plug (44) is rotatably attached to the vertical wall (18) of the lid body (2) through a plug carrier (24), and slidable relative to the end of the plug carrier (24).


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Inventors:
YOSHIMURA EIJI
UCHIO KOTA
MITSUIDA YUKI
Application Number:
JP2008254021A
Publication Date:
April 15, 2010
Filing Date:
September 30, 2008
Export Citation:
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Assignee:
LICENSE & PROPERTY CONTROL KK
International Classes:
E02D29/14
Domestic Patent References:
JP2003221836A2003-08-08
JP2000336685A2000-12-05



 
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