JPS6123100Y2 - - Google Patents

Info

Publication number

JPS6123100Y2

JPS6123100Y2 JP1464882U JP1464882U JPS6123100Y2 JP S6123100 Y2 JPS6123100 Y2 JP S6123100Y2 JP 1464882 U JP1464882 U JP 1464882U JP 1464882 U JP1464882 U JP 1464882U JP S6123100 Y2 JPS6123100 Y2 JP S6123100Y2

Authority

JP

Japan

Prior art keywords

arm portion

notch

outer arm

arm

sliding plate

Prior art date

1982-02-03

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

• 230000003014 reinforcing effect Effects 0.000 claims description 14
• 238000009412 basement excavation Methods 0.000 description 4
• 238000006243 chemical reaction Methods 0.000 description 3
• 239000002184 metal Substances 0.000 description 2
• 229920003002 synthetic resin Polymers 0.000 description 2
• 239000000057 synthetic resin Substances 0.000 description 2
• 230000000903 blocking effect Effects 0.000 description 1
• 230000008602 contraction Effects 0.000 description 1
• 230000008878 coupling Effects 0.000 description 1
• 238000010168 coupling process Methods 0.000 description 1
• 238000005859 coupling reaction Methods 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 230000004048 modification Effects 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 230000002787 reinforcement Effects 0.000 description 1