JPH0115742Y2 - - Google Patents

Info

Publication number

JPH0115742Y2

JPH0115742Y2 JP20088085U JP20088085U JPH0115742Y2 JP H0115742 Y2 JPH0115742 Y2 JP H0115742Y2 JP 20088085 U JP20088085 U JP 20088085U JP 20088085 U JP20088085 U JP 20088085U JP H0115742 Y2 JPH0115742 Y2 JP H0115742Y2

Authority

JP

Japan

Prior art keywords

sheath tube

bar

protective fence

groove

fixing

Prior art date

1985-12-26

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

• 230000001681 protective effect Effects 0.000 claims description 48
• 239000000463 material Substances 0.000 description 6
• 230000000694 effects Effects 0.000 description 3
• 229910001018 Cast iron Inorganic materials 0.000 description 2
• 238000000034 method Methods 0.000 description 2
• 238000003860 storage Methods 0.000 description 2
• 230000005856 abnormality Effects 0.000 description 1
• 238000010276 construction Methods 0.000 description 1
• 238000007796 conventional method Methods 0.000 description 1
• 238000005516 engineering process Methods 0.000 description 1
• 238000009434 installation Methods 0.000 description 1
• 238000012423 maintenance Methods 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000003825 pressing Methods 0.000 description 1