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Document Number
US Patent 6929590
Issued Date
August 16, 2005
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Abstract
A punch press capable of carrying out various processing with few tools, and the exchanging of cartridges efficiently. The punch press includes a punch frame 2 having upper and lower transferring and loading paths 17, 18 wherein upper and lower cartridges 7 loaded with a punch tool and a die tool, respectively, move in or move out freely. A ram 38 drives the punch tool of the upper cartridge 7. The transferring and loading paths 17, 18 are employed wherein the upper and lower cartridges 7 are capable of being stored and discharged to the inside and the outside of the press frame 2 independently. The upper and lower transferring and loading paths 17, 18 are capable of storing at least two cartridges 7 to the front and the back of the moving-in and moving-out direction. The cartridge transferring and loading paths 17, 18 are capable of transferring independently the front and back cartridges 7.
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Number of Claims:
3
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Published
August 16, 2005
Application Number
09/938,551
Filed
August 27, 2001
US Classification
483/29  
Int'l Classification
B21D   28/36   (20060101)   B21D   28/26   (20060101)   B21D   28/24   (20060101)   B21D   37/14   (20060101)  
Examiner
Priority Data
Sep 20, 2000 [JP] 2000-284537
USPTO Field of Search
483/28   483/29   72/446   83/563  
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