JPH0242880Y2 - - Google Patents

Info

Publication number

JPH0242880Y2

JPH0242880Y2 JP20475285U JP20475285U JPH0242880Y2 JP H0242880 Y2 JPH0242880 Y2 JP H0242880Y2 JP 20475285 U JP20475285 U JP 20475285U JP 20475285 U JP20475285 U JP 20475285U JP H0242880 Y2 JPH0242880 Y2 JP H0242880Y2

Authority

JP

Japan

Prior art keywords

shutter door

groove

reinforcing rod

attached

shutter

Prior art date

1985-12-27

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

• 238000005096 rolling process Methods 0.000 claims description 21
• 230000003014 reinforcing effect Effects 0.000 claims description 17
• 238000005452 bending Methods 0.000 description 6
• 239000000463 material Substances 0.000 description 5
• 239000000470 constituent Substances 0.000 description 3
• 238000009434 installation Methods 0.000 description 3
• 238000003860 storage Methods 0.000 description 3
• 239000000428 dust Substances 0.000 description 2
• 239000004744 fabric Substances 0.000 description 2
• 230000002787 reinforcement Effects 0.000 description 2
• 229920003002 synthetic resin Polymers 0.000 description 2
• 239000000057 synthetic resin Substances 0.000 description 2
• 238000005299 abrasion Methods 0.000 description 1
• 238000006073 displacement reaction Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 230000007774 longterm Effects 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 239000002184 metal Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 238000005192 partition Methods 0.000 description 1
• 230000001105 regulatory effect Effects 0.000 description 1