JPS645795A - Piercing device - Google Patents

Piercing device

Info

Publication number
JPS645795A
JPS645795A JP16348887A JP16348887A JPS645795A JP S645795 A JPS645795 A JP S645795A JP 16348887 A JP16348887 A JP 16348887A JP 16348887 A JP16348887 A JP 16348887A JP S645795 A JPS645795 A JP S645795A
Authority
JP
Japan
Prior art keywords
punch
head
needle section
brought
spring
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
JP16348887A
Other languages
Japanese (ja)
Inventor
Kazunori Hashi
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP16348887A priority Critical patent/JPS645795A/en
Publication of JPS645795A publication Critical patent/JPS645795A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To decrease cut portions and to reduce the cost by machining the needle section of a punch and a head separately, then integrating them. CONSTITUTION: The lower face of a stripper 26 is brought into contact with a sheet and its downward motion is stopped, then only a cylinder holder 4 is lowered against a spring, and an extended head 9a is brought into contact with a punch 27 located below. The punch 27 is depressed against the spring 29 by the downward motion of the cylinder holder 4, and a sheet material is pushed by the depressed punch 27. The punch 27 stored in the shipper 26 is constituted of a head 27a and a needle section 27b. The head 27a and the needle section 27b are separately formed, and the head 27a and the needle section 27b are integrated by pressing in, bonding, or screwing. When the punch 27 is molded, cut portions are decreased, and its cost can be reduced.
JP16348887A 1987-06-30 1987-06-30 Piercing device Pending JPS645795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16348887A JPS645795A (en) 1987-06-30 1987-06-30 Piercing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16348887A JPS645795A (en) 1987-06-30 1987-06-30 Piercing device

Publications (1)

Publication Number Publication Date
JPS645795A true JPS645795A (en) 1989-01-10

Family

ID=15774816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16348887A Pending JPS645795A (en) 1987-06-30 1987-06-30 Piercing device

Country Status (1)

Country Link
JP (1) JPS645795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005014207A (en) * 2003-06-25 2005-01-20 Groz Beckert Kg Punching device for flat material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523785A (en) * 1975-06-28 1977-01-12 Kobe Steel Ltd Punch device for automatic marking equipment
JPS60123300A (en) * 1983-12-02 1985-07-01 株式会社日立製作所 Punching die having punch selective function
JPS6245432A (en) * 1985-08-21 1987-02-27 Suruga Seiki Kk Punch for die

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523785A (en) * 1975-06-28 1977-01-12 Kobe Steel Ltd Punch device for automatic marking equipment
JPS60123300A (en) * 1983-12-02 1985-07-01 株式会社日立製作所 Punching die having punch selective function
JPS6245432A (en) * 1985-08-21 1987-02-27 Suruga Seiki Kk Punch for die

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005014207A (en) * 2003-06-25 2005-01-20 Groz Beckert Kg Punching device for flat material

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