Sheet folding apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 25, 2008
app pub date -
May 8, 2007
filing date -
May 10, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A buckle (3, 4) is provided with a position adjustable stopper (5, 6) for stopping a sheet (P) by coming into collision with the leading edge of the sheet (P) so as to position the sheet in a fold position. In the inlet of the buckle, there are provided a pair of rotary drive folding rollers (20a, 20b; 20c, 20d) for taking the sheet in the buckle, and a pair of rotary drive folding rollers (20b, 20c; 20d, 20e) for folding a portion of the sheet deflecting from the buckle. A sheet detector (16, 17) is arranged in the buckle at a predetermined spacing from the stopper. A control section (29) outputting a signal for deceleration to a driving source of the roller upon reception of a sheet detection signal from the sheet detector and stopping output of the signal for deceleration after elapse of a predetermined time. After the leading edge of the sheet introduced into the buckle passes through the sheet detector, the rotational speed of the roller is reduced to decrease the conveying speed of the sheet, the leading edge of the sheet collides with the stopper at a sufficiently reduced speed, thereafter, the rotational speed of the roller is gradually increased so that the rotational speed before being reduced is recovered when the next sheet is introduced into the buckle.
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