The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2011
Filed:
Sep. 09, 2004
Seung-kyoon Noh, Seoul, KR;
Jae-geol Choi, Seoul, KR;
Seung-kyoon Noh, Seoul, KR;
Jae-Geol Choi, Seoul, KR;
KRDC Co., Ltd., Seoul, KR;
Gradco (Japan) Ltd., Tokyo, JP;
Abstract
Disclosed are a sheet punching apparatus and a method for controlling the same in which the side end position of a sheet, its rear end position, a hole position, and the detachment state of a punch portion are sensed only by two sensors, and a punching hole can be formed at the exact position of a sheet by means of the two sensors. The sheet punching apparatus includes a punch portion () moving in a direction perpendicular to a moving direction of a sheet, a bracket () having an elastic member () to move in conjunction with the punch portion (), a sheet side end sensing means (S) fixed to a predetermined position of the bracket, sensing the side end of the sheet in accordance with movement of the bracket, and a sheet rear end sensing means (S) opened to sense the rear end of the moving sheet when the bracket moves at a predetermined distance along with the punch portion to sense the side end of the sheet, wherein the punch portion () works to punch the sheet at a predetermined position after the rear end of the sheet is sensed by the sheet rear end sensing means.