JPH0138402Y2 - - Google Patents

Info

Publication number

JPH0138402Y2

JPH0138402Y2 JP7638881U JP7638881U JPH0138402Y2 JP H0138402 Y2 JPH0138402 Y2 JP H0138402Y2 JP 7638881 U JP7638881 U JP 7638881U JP 7638881 U JP7638881 U JP 7638881U JP H0138402 Y2 JPH0138402 Y2 JP H0138402Y2

Authority

JP

Japan

Prior art keywords

kotatsu

spacer

end surface

top plate

male threaded

Prior art date

1981-05-25

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

• 125000006850 spacer group Chemical group 0.000 claims description 28
• 239000011162 core material Substances 0.000 claims description 12
• 239000002184 metal Substances 0.000 claims description 8
• 230000002093 peripheral effect Effects 0.000 claims description 5
• 238000003466 welding Methods 0.000 claims description 4
• 238000010438 heat treatment Methods 0.000 description 2
• 238000002788 crimping Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 238000005516 engineering process Methods 0.000 description 1
• 230000002452 interceptive effect Effects 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000000465 moulding Methods 0.000 description 1