JPH0617877Y2 - 地下構造物用蓋 - Google Patents

Info

Publication number

JPH0617877Y2

JPH0617877Y2 JP1987160464U JP16046487U JPH0617877Y2 JP H0617877 Y2 JPH0617877 Y2 JP H0617877Y2 JP 1987160464 U JP1987160464 U JP 1987160464U JP 16046487 U JP16046487 U JP 16046487U JP H0617877 Y2 JPH0617877 Y2 JP H0617877Y2

Authority

JP

Japan

Prior art keywords

lid

hanging edge

underground structure

lid body

back surface

Prior art date

1987-10-20

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired - Lifetime

Links

• Espacenet
• Global Dossier
• Discuss

• 230000003014 reinforcing effect Effects 0.000 claims description 7
• 239000002184 metal Substances 0.000 claims description 4
• 229910052751 metal Inorganic materials 0.000 claims description 4
• 230000002093 peripheral effect Effects 0.000 claims description 4
• 230000007547 defect Effects 0.000 description 8
• 230000000694 effects Effects 0.000 description 5
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 229910001018 Cast iron Inorganic materials 0.000 description 1
• 229910001141 Ductile iron Inorganic materials 0.000 description 1
• 230000000903 blocking effect Effects 0.000 description 1
• 230000008030 elimination Effects 0.000 description 1
• 238000003379 elimination reaction Methods 0.000 description 1
• 238000003780 insertion Methods 0.000 description 1
• 230000037431 insertion Effects 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1