punchin

专利名称：Punch

发明人：岡村康

申请号：JP特願平1-54007

申请日：19890307

公开号：JP第2699525号B2

公开日：19980119

专利内容由知识产权出版社提供

摘要：PURPOSE:Toconstitutethispunchingdevicesothatpunchedchipsofa

magneticcardpunchedwithapunchpinareattractedtotheinsideperipheryofapunch

dieandnotscatteredaboutinacarryingpathofthemagneticcardbyallowingthepunch

TUTION:Apunchpin13movesdownward

dchips1epassthrough

tooththicknessWofapunchdie7andgointoahollowpermanentmagnet9,anda

magneticlayer1cofthepunchedchips1eismagnetizedandattractedtotheinside

hepunchedchips1e,sincetheinsidediameterd3of

themagnet9islargerthantheholediameterd1ofthepunchdie7,thepunchedchips

aredetainedbyastepdifferenceoftheinsidediameterd3ofthemagnet9andthehole

diameterd1ofthepunchdie7andheldbymagneticattractionforceofthemagnet9by

ore,thepunchedchips1edonotgo

intoacarryingpath5fromahole7bofthepunchdie7,anditsmovementinthedirection

ofthecarryingpath5isobstructedbythepunchdie7.

申请人：松下電器産業株式会社

地址：大阪府門真市大字門真1006番地

国籍：JP

代理人：滝本智之(外1名)

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