JPH03433Y2 - - Google Patents

Info

Publication number

JPH03433Y2

JPH03433Y2 JP12564685U JP12564685U JPH03433Y2 JP H03433 Y2 JPH03433 Y2 JP H03433Y2 JP 12564685 U JP12564685 U JP 12564685U JP 12564685 U JP12564685 U JP 12564685U JP H03433 Y2 JPH03433 Y2 JP H03433Y2

Authority

JP

Japan

Prior art keywords

hook

net

safety net

stopper

manhole

Prior art date

1985-08-16

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

• 238000003780 insertion Methods 0.000 claims description 5
• 230000037431 insertion Effects 0.000 claims description 5
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
• 229910052742 iron Inorganic materials 0.000 description 6
• 239000000463 material Substances 0.000 description 3
• 239000002184 metal Substances 0.000 description 3
• 229910052751 metal Inorganic materials 0.000 description 3
• 238000000034 method Methods 0.000 description 2
• 239000004033 plastic Substances 0.000 description 2
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
• 239000004743 Polypropylene Substances 0.000 description 1
• 238000005452 bending Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 238000009434 installation Methods 0.000 description 1
• -1 polypropylene Polymers 0.000 description 1
• 229920001155 polypropylene Polymers 0.000 description 1