JPH03119057U - - Google Patents

Info

Publication number
JPH03119057U
JPH03119057U JP2762490U JP2762490U JPH03119057U JP H03119057 U JPH03119057 U JP H03119057U JP 2762490 U JP2762490 U JP 2762490U JP 2762490 U JP2762490 U JP 2762490U JP H03119057 U JPH03119057 U JP H03119057U
Authority
JP
Japan
Prior art keywords
recess
excavation tool
feeder
casting
remains
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.)
Pending
Application number
JP2762490U
Other languages
English (en)
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 filed Critical
Priority to JP2762490U priority Critical patent/JPH03119057U/ja
Publication of JPH03119057U publication Critical patent/JPH03119057U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の一実施例を示す断面図、第
2図は第1図−線に沿う断面図、第3図ない
し第5図は従来の説明図である。 1は掘削工具本体、1aは凹部、1cは凹窪部
、1dは押湯除去跡、2は押湯。

Claims (1)

    【実用新案登録請求の範囲】
  1. 掘削工具本体1に設けられた凹部1a内に、該
    凹部1aの内底部よりさらに一段低い凹窪部1c
    を形成し、この凹窪部1c内に押湯除去跡1dが
    残るように凹部1a内に押湯2を設けて上記掘削
    工具本体1を鋳造してなる掘削工具。
JP2762490U 1990-03-20 1990-03-20 Pending JPH03119057U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2762490U JPH03119057U (ja) 1990-03-20 1990-03-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2762490U JPH03119057U (ja) 1990-03-20 1990-03-20

Publications (1)

Publication Number Publication Date
JPH03119057U true JPH03119057U (ja) 1991-12-09

Family

ID=31530466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2762490U Pending JPH03119057U (ja) 1990-03-20 1990-03-20

Country Status (1)

Country Link
JP (1) JPH03119057U (ja)

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