JPS5238688A - Punch - Google Patents

Punch

Info

Publication number
JPS5238688A
JPS5238688A JP11424775A JP11424775A JPS5238688A JP S5238688 A JPS5238688 A JP S5238688A JP 11424775 A JP11424775 A JP 11424775A JP 11424775 A JP11424775 A JP 11424775A JP S5238688 A JPS5238688 A JP S5238688A
Authority
JP
Japan
Prior art keywords
hole
punching
desired shape
punch
stroke
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.)
Granted
Application number
JP11424775A
Other languages
Japanese (ja)
Other versions
JPS5825528B2 (en
Inventor
Nobuyoshi Watanabe
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.)
Fuji Satsushi Kogyo Kk
FUJI SATSUSHI KOUGIYOU KK
Fujisash Co Ltd
Original Assignee
Fuji Satsushi Kogyo Kk
FUJI SATSUSHI KOUGIYOU KK
Fujisash Co Ltd
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 Fuji Satsushi Kogyo Kk, FUJI SATSUSHI KOUGIYOU KK, Fujisash Co Ltd filed Critical Fuji Satsushi Kogyo Kk
Priority to JP50114247A priority Critical patent/JPS5825528B2/en
Publication of JPS5238688A publication Critical patent/JPS5238688A/en
Publication of JPS5825528B2 publication Critical patent/JPS5825528B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)

Abstract

PURPOSE: To form a hole of a good shape free from punching fin extremely simply and easily by punching a hole smaller than a desired shape in the forwarding stroke and boring the hole into the desired shape in the returning stroke.
COPYRIGHT: (C)1977,JPO&Japio
JP50114247A 1975-09-23 1975-09-23 Senkouyo punch Expired JPS5825528B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50114247A JPS5825528B2 (en) 1975-09-23 1975-09-23 Senkouyo punch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50114247A JPS5825528B2 (en) 1975-09-23 1975-09-23 Senkouyo punch

Publications (2)

Publication Number Publication Date
JPS5238688A true JPS5238688A (en) 1977-03-25
JPS5825528B2 JPS5825528B2 (en) 1983-05-27

Family

ID=14632966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50114247A Expired JPS5825528B2 (en) 1975-09-23 1975-09-23 Senkouyo punch

Country Status (1)

Country Link
JP (1) JPS5825528B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115199A (en) * 1982-12-22 1984-07-03 松下電工株式会社 Punch for punching printed board of glass composite material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4981745A (en) * 1972-12-13 1974-08-07
JPS5053994A (en) * 1973-05-11 1975-05-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4981745A (en) * 1972-12-13 1974-08-07
JPS5053994A (en) * 1973-05-11 1975-05-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115199A (en) * 1982-12-22 1984-07-03 松下電工株式会社 Punch for punching printed board of glass composite material

Also Published As

Publication number Publication date
JPS5825528B2 (en) 1983-05-27

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