US 5,440,958 AGranted

Automatic device for stacking sheets of paper

AssigneeJapan Digital Laboratory Co., Ltd.

InventorsHiroyuki Terasaki, Masahiro Sekine, Hisanori Miyake, Michael T. Sherick, Bryan M. Doherty, Jr.

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Abstract

An automatic device for stacking sheets of paper is improved for increasing the amount of stacked sheets. An image tracing output device is so constructed that a sheet exiting from a sheet exit portion is guided to the exterior of a fixed rod of sheet stacking unit by a plate for putting sheet flow in good order. When the forwarded amount of the sheet attains approximately a half of a predetermined length, a contacting portion supported by swinging rods descends to be brought into contact with the sheet. The contacting portion continues to descend further to be brought into contact with the fixed rod. As the result, the sheet is hung also on the inner side of the fixed rod. When it attains a predetermined length, it is cut and the swinging rods return to their initial position.

Claims18

Dependent claims

An automatic device for stacking sheets of paper comprising:

an image tracing output device having a sheet exit portion adapted to facilitate an exit of a sheet of paper therefrom;
sheet stacking means disposed below the sheet exit portion of the image tracing output device and having a sheet supporting rod which has a spring at each extremity thereof engaged therewith so that said sheet supporting rod moves in directions toward and away from a downwardly extending plane oriented parallel to a surface of said sheet when a sufficient component of pressure is applied to said sheet supporting rod;
sheet guiding means, for guiding each sheet exiting from said sheet exit portion, towards one side of said sheet stacking means;
sheet exit direction changing means for thrusting said sheet to said sheet stacking means when the sheet which has exited has a predetermined length so as to change an exit direction thereof to another side of said sheet stacking means, said sheet exit direction changing means including a contact portion which is movable into contact with said sheet supporting rod to apply said component of pressure thereto;
and
sheet cutting means for cutting the sheet, which has exited by a predetermined length, after the sheet exit direction has been changed by said sheet exit direction changing means.

3 more elements

An automatic device for stacking sheets of paper comprising:

an image tracing output device having a sheet exit portion adapted to facilitate an exit of a sheet of paper therefrom;
sheet stacking means disposed below the sheet exit portion of the image tracing output device and having a sheet supporting rod which has a spring at each extremity thereof engaged therewith so that said sheet supporting rod moves upwardly and downwardly when a sufficient component of pressure is applied thereto;
sheet guiding means, for guiding each sheet exiting from said sheet exit portion, towards one side of said sheet stacking means;
sheet exit direction changing means for thrusting said sheet to said sheet stacking means when the sheet which has exited has a predetermined length so as to change an exit direction thereof to another side of said sheet stacking means, said sheet exit direction changing means including a contact portion which is movable into contact with said sheet supporting rod to apply said component of pressure thereto;
and
sheet cutting means for cutting the sheet, which has exited by a predetermined length, after the sheet exit direction has been changed by said sheet exit direction changing means.

3 more elements

An automatic device for stacking sheets of paper comprising:

an image tracing output device having a sheet exit portion adapted to facilitate an exit of a sheet of paper therefrom;
sheet stacking means disposed below the sheet exit portion of the image tracing output device and having a support member and a sheet supporting rod dismountably supported by said support member, said sheet supporting rod having a spring at each extremity thereof engaged therewith so that said sheet supporting rod moves in directions toward and away from a downwardly extending plane oriented parallel to a surface of said sheet when a sufficient component of pressure is applied to said sheet supporting rod;
sheet guiding means, for guiding each sheet exiting from said sheet exit portion, towards one side of said sheet stacking means;
and
sheet exit direction changing means for thrusting said sheet to said sheet stacking means, when the sheet which has exited has a predetermined length so as to change an exit direction thereof to another side of said sheet stacking means, said sheet exit direction changing means including a contact portion which is movable into contact with said sheet supporting rod to apply said component of pressure thereto.

2 more elements

An automatic device for stacking sheets of paper comprising:

an image tracing output device having a sheet exit portion adapted to facilitate an exit of a sheet of paper therefrom;
sheet stacking means disposed below the sheet exit portion of the image tracing output device and having a support member and a sheet supporting rod dismountably supported by said support member, said sheet supporting rod having a spring at each extremity thereof engaged therewith so that said sheet supporting rod moves upwardly and downwardly when a sufficient component of pressure is applied thereto;
sheet guiding means, for guiding each sheet exiting from said sheet exit portion, towards one side of said sheet stacking means;
and
sheet exit direction changing means for thrusting said sheet to said sheet stacking means when the sheet which has exited has a predetermined length so as to change an exit direction thereof to another side of said sheet stacking means, said sheet exit direction changing means including a contact portion which is movable into contact with said sheet supporting rod to apply said component of pressure thereto.

2 more elements

Dependencies are inferred from the claim text.