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Title:
CONCRETE COMPOSITE CAST IRON LID
Document Type and Number:
Japanese Patent JP2006152647
Kind Code:
A
Abstract:

To provide a concrete composite cast iron lid capable of improving unified operation of a concrete and a cast iron lid body.

In the concrete composite cast-iron lid 2 constituted by filling the inside of a cast iron-made container-shaped lid body 4 having the outer circumferential surface section 11 and the bottom section 12 with a concrete and provided in an opening section of an underground structure, a large number of small projections 24 for making them combine with the concrete are provided upward on the upper surface of the bottom section 12. The small projections are inclined and are provided by properly making inclined directions differ. Upward projected reinforcing ribs 13 are consecutively provided to the outer circumference section and the bottom section, reinforcement insertion holes 16 are made in the reinforcing ribs, and a bar arrangement structure inserting a reinforcing bar 5 into each reinforcement insertion hole is included.


Inventors:
KISHIMOTO SHIGEHIRO
NOBUHARA ICHITA
KONO KAZUHIDE
Application Number:
JP2004343739A
Publication Date:
June 15, 2006
Filing Date:
November 29, 2004
Export Citation:
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Assignee:
KOGI CORP
International Classes:
E02D29/14
Domestic Patent References:
JPS4328293Y11968-11-21
JPH01101121U1989-07-07
JP2002188167A2002-07-05
JPH09277221A1997-10-28
JPH11190096A1999-07-13
JP2004003290A2004-01-08
Attorney, Agent or Firm:
Hiroshi Tanaka



 
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