Sheet hole punching apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 23, 2012
Grant Date -
Jan 20, 2011
app pub date -
Sep 23, 2010
filing date -
Mar 31, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sheet hole-punching device includes a plurality of punch members, a base frame for slidably supporting the punch members in a hole-punching direction and rotationally supporting the punch members, and a drive member having a plurality of cam portions. Each punch member has a leading end with a hole-punching blade. Each cam portion engages each punch member to move the punch member in the hole-punching direction. A plurality of cam devices is also formed in the sheet hole-punching device. Each cam device is disposed between the base frame and each punch member for converting a hole-punching direction movement of the punch member into a rotational movement so as to rotate the punch member while moving in the hole-punching direction.
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