JPH0322566Y2 - - Google Patents

Info

Publication number

JPH0322566Y2

JPH0322566Y2 JP1416888U JP1416888U JPH0322566Y2 JP H0322566 Y2 JPH0322566 Y2 JP H0322566Y2 JP 1416888 U JP1416888 U JP 1416888U JP 1416888 U JP1416888 U JP 1416888U JP H0322566 Y2 JPH0322566 Y2 JP H0322566Y2

Authority

JP

Japan

Prior art keywords

outer tube

core member

shaft

tube member

nail

Prior art date

1988-02-04

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

• 239000000463 material Substances 0.000 claims description 39
• 239000011295 pitch Substances 0.000 claims description 5
• 238000000034 method Methods 0.000 description 9
• 239000004567 concrete Substances 0.000 description 4
• 230000002093 peripheral effect Effects 0.000 description 3
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
• 229910052782 aluminium Inorganic materials 0.000 description 2
• 230000007423 decrease Effects 0.000 description 2
• 238000006073 displacement reaction Methods 0.000 description 2
• 239000011381 foam concrete Substances 0.000 description 2
• 229920003002 synthetic resin Polymers 0.000 description 2
• 239000000057 synthetic resin Substances 0.000 description 2
• 230000015572 biosynthetic process Effects 0.000 description 1
• 239000004035 construction material Substances 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 238000001746 injection moulding Methods 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1