JPH03120921U - - Google Patents

Info

Publication number
JPH03120921U
JPH03120921U JP2730690U JP2730690U JPH03120921U JP H03120921 U JPH03120921 U JP H03120921U JP 2730690 U JP2730690 U JP 2730690U JP 2730690 U JP2730690 U JP 2730690U JP H03120921 U JPH03120921 U JP H03120921U
Authority
JP
Japan
Prior art keywords
die
cutting edge
hole
square hole
forming
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
JP2730690U
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 JP2730690U priority Critical patent/JPH03120921U/ja
Publication of JPH03120921U publication Critical patent/JPH03120921U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Punching Or Piercing (AREA)

Description

【図面の簡単な説明】
図面は、本考案の一実施例を示し、第1図はプ
レス装置の要部を示す断面図、第2図は角孔成形
ポンチの正面図、第3図は同じく左側面図、第4
図は同じく刃先部の斜視図、第5図a〜gは角孔
の成形過程図、第6図a〜dは係止爪部の成形過
程図、第7図ないし第11図は従来例である。 1……角孔、2……係止爪、10……ポンチホ
ルダー、11……ダイホルダー、18……ダイブ
ロツク、19……ダイス孔、22……角孔成形ポ
ンチ、24……曲げ成形軸部、25……刃先部、
29……刃部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 略方形状のダイス孔を有するダイブロツクを取
    付けたダイホルダーと対向配設したポンチホルダ
    ーに前記ダイス孔に対向状に設けられて係止爪を
    有する角孔を成形する角孔成形ポンチであつて、
    該角孔成形ポンチの先端には所定の刃先角度を有
    し、前記ダイス孔の対角方向に刃部を有して係止
    爪部を切断成形する略角錐形状の刃先部を形成す
    るとともに、この刃先部に連続して前記係止爪部
    を角孔に対し折曲げ成形する断面略方形状の曲げ
    成形軸部とより構成した係止爪を有する角孔成形
    ポンチ。
JP2730690U 1990-03-16 1990-03-16 Pending JPH03120921U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2730690U JPH03120921U (ja) 1990-03-16 1990-03-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2730690U JPH03120921U (ja) 1990-03-16 1990-03-16

Publications (1)

Publication Number Publication Date
JPH03120921U true JPH03120921U (ja) 1991-12-11

Family

ID=31530167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2730690U Pending JPH03120921U (ja) 1990-03-16 1990-03-16

Country Status (1)

Country Link
JP (1) JPH03120921U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014200789A (ja) * 2013-04-01 2014-10-27 山下印刷紙器株式会社 切刃加工用ピン及び切刃の製造方法並びに切刃付き容器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728635A (en) * 1980-07-26 1982-02-16 Anritsu Corp Method of boring tapered hole in metallic plate
JPS61242729A (ja) * 1985-04-19 1986-10-29 Sanki Kogyo Kk 穿孔具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728635A (en) * 1980-07-26 1982-02-16 Anritsu Corp Method of boring tapered hole in metallic plate
JPS61242729A (ja) * 1985-04-19 1986-10-29 Sanki Kogyo Kk 穿孔具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014200789A (ja) * 2013-04-01 2014-10-27 山下印刷紙器株式会社 切刃加工用ピン及び切刃の製造方法並びに切刃付き容器

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