JPH07552Y2 - 管推進装置の切削具 - Google Patents

管推進装置の切削具

Info

Publication number
JPH07552Y2
JPH07552Y2 JP8522390U JP8522390U JPH07552Y2 JP H07552 Y2 JPH07552 Y2 JP H07552Y2 JP 8522390 U JP8522390 U JP 8522390U JP 8522390 U JP8522390 U JP 8522390U JP H07552 Y2 JPH07552 Y2 JP H07552Y2
Authority
JP
Japan
Prior art keywords
cutting bit
head ring
cutting
shaft
outer diameter
Prior art date
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 - Lifetime
Application number
JP8522390U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0446187U (enrdf_load_stackoverflow
Inventor
雅俊 米田
照雄 新阜
明 平尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Obayashi Road Corp
Original Assignee
Obayashi Road Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Obayashi Road Corp filed Critical Obayashi Road Corp
Priority to JP8522390U priority Critical patent/JPH07552Y2/ja
Publication of JPH0446187U publication Critical patent/JPH0446187U/ja
Application granted granted Critical
Publication of JPH07552Y2 publication Critical patent/JPH07552Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
JP8522390U 1990-08-10 1990-08-10 管推進装置の切削具 Expired - Lifetime JPH07552Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8522390U JPH07552Y2 (ja) 1990-08-10 1990-08-10 管推進装置の切削具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8522390U JPH07552Y2 (ja) 1990-08-10 1990-08-10 管推進装置の切削具

Publications (2)

Publication Number Publication Date
JPH0446187U JPH0446187U (enrdf_load_stackoverflow) 1992-04-20
JPH07552Y2 true JPH07552Y2 (ja) 1995-01-11

Family

ID=31816456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8522390U Expired - Lifetime JPH07552Y2 (ja) 1990-08-10 1990-08-10 管推進装置の切削具

Country Status (1)

Country Link
JP (1) JPH07552Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0446187U (enrdf_load_stackoverflow) 1992-04-20

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term