JPH0452861Y2 - - Google Patents

Info

Publication number

JPH0452861Y2

JPH0452861Y2 JP1254087U JP1254087U JPH0452861Y2 JP H0452861 Y2 JPH0452861 Y2 JP H0452861Y2 JP 1254087 U JP1254087 U JP 1254087U JP 1254087 U JP1254087 U JP 1254087U JP H0452861 Y2 JPH0452861 Y2 JP H0452861Y2

Authority

JP

Japan

Prior art keywords

shutter

case

guide groove

head insertion

insertion hole

Prior art date

1987-01-30

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 22
• 230000037431 insertion Effects 0.000 claims description 22
• 230000000694 effects Effects 0.000 description 2
• 238000004080 punching Methods 0.000 description 2
• 230000007547 defect Effects 0.000 description 1
• 230000006866 deterioration Effects 0.000 description 1
• 239000002184 metal Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1