TW200621461A - Punching unit - Google Patents

Punching unit

Info

Publication number
TW200621461A
TW200621461A TW093139132A TW93139132A TW200621461A TW 200621461 A TW200621461 A TW 200621461A TW 093139132 A TW093139132 A TW 093139132A TW 93139132 A TW93139132 A TW 93139132A TW 200621461 A TW200621461 A TW 200621461A
Authority
TW
Taiwan
Prior art keywords
punch
lowered
punching unit
blade
edges
Prior art date
Application number
TW093139132A
Other languages
Chinese (zh)
Inventor
Shinichi Mita
Original Assignee
Daido Kogyo Kabushiki Kaisha
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 Daido Kogyo Kabushiki Kaisha filed Critical Daido Kogyo Kabushiki Kaisha
Priority to TW093139132A priority Critical patent/TW200621461A/en
Publication of TW200621461A publication Critical patent/TW200621461A/en

Links

Landscapes

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

Abstract

An inventive punching unit is provided with punches (2) whose blade (2a) is cut away in a shape of V at a shearing angle (a) whose apex (b) is set at a position offset from an axial center line (O-O) of the punch (2) by a predetermined distance (c). Because the lengths of left and right edges (P3 and P4) of the blade (2a) are different and these edges (P3 and P4) contact with a sheet at staggered timing, a peak value of punching force of the punch (2) may be lowered. Thus, the peak values of the punch are lowered and hence a driving force is lowered.
TW093139132A 2004-12-16 2004-12-16 Punching unit TW200621461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW093139132A TW200621461A (en) 2004-12-16 2004-12-16 Punching unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW093139132A TW200621461A (en) 2004-12-16 2004-12-16 Punching unit

Publications (1)

Publication Number Publication Date
TW200621461A true TW200621461A (en) 2006-07-01

Family

ID=57808405

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093139132A TW200621461A (en) 2004-12-16 2004-12-16 Punching unit

Country Status (1)

Country Link
TW (1) TW200621461A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI778322B (en) * 2020-01-17 2022-09-21 堡勝企業股份有限公司 Punching tool and punching machine having such tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI778322B (en) * 2020-01-17 2022-09-21 堡勝企業股份有限公司 Punching tool and punching machine having such tool

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