| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in a sheet punching device that a tip corner part of a conveyed sheet material is entered and caught into a hole part in which a punching blade is fitted. SOLUTION: In this sheet punching device having a punching means for forming a punched hole on the conveyed sheet material, and a supporting member 50 supporting the sheet material and having a fitting hole part 50a forming the punched hole on the sheet material by being engaged with the punching blade 47 of the punching means, a guide member 65 is projected on the supporting member for guiding the sheet material conveyed toward the engagement hole part, in the direction separating from the fitting hole part, and being retracted from the supporting member in forming the punched hole.
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