JPS6123101Y2 - - Google Patents

Info

Publication number

JPS6123101Y2

JPS6123101Y2 JP1695982U JP1695982U JPS6123101Y2 JP S6123101 Y2 JPS6123101 Y2 JP S6123101Y2 JP 1695982 U JP1695982 U JP 1695982U JP 1695982 U JP1695982 U JP 1695982U JP S6123101 Y2 JPS6123101 Y2 JP S6123101Y2

Authority

JP

Japan

Prior art keywords

arm portion

outer arm

attached

reinforcing member

sliding plate

Prior art date

1982-02-08

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 20
• 238000009412 basement excavation Methods 0.000 description 4
• 239000002184 metal Substances 0.000 description 2
• 229910052751 metal Inorganic materials 0.000 description 2
• 229920003002 synthetic resin Polymers 0.000 description 2
• 239000000057 synthetic resin Substances 0.000 description 2
• 238000003466 welding Methods 0.000 description 2
• 238000005452 bending Methods 0.000 description 1
• 230000008602 contraction Effects 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 150000002739 metals Chemical class 0.000 description 1
• 230000002787 reinforcement Effects 0.000 description 1

Cited By (1)