JPS6113411Y2 - - Google Patents

Info

Publication number

JPS6113411Y2

JPS6113411Y2 JP8915980U JP8915980U JPS6113411Y2 JP S6113411 Y2 JPS6113411 Y2 JP S6113411Y2 JP 8915980 U JP8915980 U JP 8915980U JP 8915980 U JP8915980 U JP 8915980U JP S6113411 Y2 JPS6113411 Y2 JP S6113411Y2

Authority

JP

Japan

Prior art keywords

lid member

pipe

curved

attachment

square pipe

Prior art date

1980-06-24

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

Links

• Espacenet
• Global Dossier
• Discuss

• 239000011324 bead Substances 0.000 claims description 10
• 230000000630 rising effect Effects 0.000 claims description 7
• 230000003014 reinforcing effect Effects 0.000 description 3
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 238000005452 bending Methods 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 239000000463 material Substances 0.000 description 2
• 229910000831 Steel Inorganic materials 0.000 description 1
• 238000005516 engineering process Methods 0.000 description 1
• 230000002452 interceptive effect Effects 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1
• 238000003754 machining Methods 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 239000002184 metal Substances 0.000 description 1
• 229910052751 metal Inorganic materials 0.000 description 1
• 230000002787 reinforcement Effects 0.000 description 1
• 239000012779 reinforcing material Substances 0.000 description 1
• 239000010959 steel Substances 0.000 description 1
• 239000013585 weight reducing agent Substances 0.000 description 1