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2. 发明专利

JP2007099511A Punching device, sheet post-processing device, and image forming system 有权
标题翻译：打孔装置，纸张后处理装置和图像形成系统
公开(公告)号：JP2007099511A
公开(公告)日：2007-04-19
申请号：JP2006163562
申请日：2006-06-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA KENJI , SAITO HIROMOTO , YOSHIKAWA NAOHIRO , IIDA JUNICHI , TOKITA JUNICHI , MATSUSHITA SHINGO
IPC分类号： B65H37/04
CPC分类号： B26F1/02 , B26F1/14 , G03G15/6582 , G03G2215/00818 , Y10T83/293 , Y10T83/745 , Y10T83/929 , Y10T83/9428
摘要： PROBLEM TO BE SOLVED: To provide a punching device capable of reducing deviation in core of a guide hole and a die hole of a punch blade by reducing the influence due to deviation in temperature caused between a die frame and a guide frame. SOLUTION: In this punching device 121 having the die frame 312 forming the die hole 313 for guiding the punch blade 301 and punching a paper P by moving the punch blade 301 and letting it pass through the die hole 313, the die frame 312 is provided with a cut-out section C on a face opposing to the direction of conveyance of the paper P to form a lower thin-walled part for reducing thickness for the vertical direction to a downward face 312-1 on the face opposing to the direction of conveyance of the paper P of the die frame 312 and reduce flexural strength from the vertical direction for the downward face 312-1 more than flexural strength from the parallel direction. A heat transfer prevention member 314 having lower thermal conductivity than that of the die frame 312 is provided in a downward inclined part 312-2 to reduce temperature deviation itself. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够通过减少由于模具框架和引导框架之间引起的温度偏差的影响而能够减小冲压刀片的导向孔的芯部和模具孔的偏移的冲压装置。解决方案：在具有模具框架312的冲压装置121中，模具框架312形成用于引导冲头301的模孔313并且通过移动冲压刀301并使其穿过模孔313冲压纸P， 312在与纸张P的输送方向相对的表面上设置有切口部分C，以形成下薄壁部分，用于减小垂直方向的厚度，使其相对于相对的面的下表面312-1 模具框架312的纸张P的输送方向，并且从平行方向减小弯曲强度，使弯曲强度从弯曲强度大于弯曲强度。在向下倾斜部312-2中设置有比模具框架312低的热导率的传热阻止部件314，以降低温度偏差本身。版权所有（C）2007，JPO＆INPIT

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