Sheet stack height control system

Details Sheet stack height control system Sheet stack height control system

1996-01-11

1997-03-11

Nguyen, Hoang

Sheet-material associating

Associating or disassociating

Sheet associating

270 5811, B42B 102, B42B 202

Patent

active

056093330

ABSTRACT:
In a sheet stacking system for stacking plural sheets from a printed sheets output path into at least one sheet stacking tray, including a stack height sensor for detecting the height of the stack of sheets in the tray and controlling a stacking control system; the stack height sensor has an elongated maximum stack height sensing bar, and a sensing bar movement system for intermittently moving the maximum stack height sensing bar into the tray in an operative measurement position on top of the stack of sheets in the tray at a position transversely of the sheet entrance path, with a normal force pressing downwardly against the top of the stack. The stack height sensing bar in this position extends across the top of the stack at the height of the highest level of any portion of the stack, in particular, overlying the sets stapling area. A sensing system is actuated by the height of the stack height sensing bar in this measurement position to provide signals to the stacking control system, which provides a control signal when the maximum stack height in the sheet entrance path to said sheet stacking tray reaches a height which is preset below the height which would obstruct the sheet entrance path. This sensor system can move, to measure several bins, and can also provide a sheet knockdown function.

REFERENCES:
patent: 4903952 (1990-02-01), Russel et al.
patent: 5017972 (1991-05-01), Daughton et al.
patent: 5026034 (1991-06-01), Russel et al.
patent: 5328169 (1994-07-01), Mandel
patent: 5348279 (1994-09-01), Lambregts et al.
patent: 5398918 (1995-03-01), Rizzolo et al.
patent: 5462265 (1995-10-01), Mandel et al.
Patent Application--U.S. Ser. No.--08/393,604 (Atty. Docker #D/94656) Filed: Feb. 23, 1995--Applicants: Sanchez, et al.

Affiliated with

Also associated with

Rating

Sheet stack height control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sheet stack height control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet stack height control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-437915