COVER FOR UNDERGROUND STRUCTURE

WIPO Patent Application WO/2014/175070

A1

The inner periphery (31) of a receiving frame (30) has a receiving frame support (40) that has a flat receiving shape and a receiving frame first face (42) that is formed on the lower part of the receiving frame support and that is sloped so that the diameter decreases toward the bottom of the receiving frame. The outer periphery (11) of a cover (10) has a flat cover receiving section (16) that is supported by the receiving frame support, and a cover first face (18) that is formed on the lower part of the cover flat receiving section and that is vertical toward the bottom of the cover or is sloped steeper than the receiving frame first face so that the diameter decreases toward the bottom of the cover. When the cover is in a closed cover state, the cover flat receiving section (16) is supported by the receiving frame support (40), and the cover first face (18) and the receiving frame first face (42) are mutually pressed together by a pressing force due to the elastic deformation of the outer periphery (11) of the cover (10) and/or the inner periphery (31) of the receiving frame (30).

JP2023127715	MANHOLE COVER ABNORMALITY DETERMINATION DEVICE
WO/2004/016889	LOCKING MECHANISM
JP2593841	[Name of device] Inner lid of inspection cylinder

SAEKI EIICHIRO (JP)
SHINOHARA NORIO (JP)
ANDOU TAKEFUMI (JP)

PCT/JP2014/060299

October 30, 2014

April 09, 2014

Click for automatic bibliography generation  

HINODE LTD (JP)

E02D29/14

JPS5368159U	1978-06-08
JPS55132820A	1980-10-16
JP3179066U	2012-10-11
JPS5372357A	1978-06-27
EP2312064A1	2011-04-20
JP2012057435A	2012-03-22
JPS565047U	1981-01-17
JP2012021369A	2012-02-02
JPS499059U	1974-01-25

NAGATO, KANJI (JP)
Nagato 侃 2 (JP)

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