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US 5,490,829 AGranted
Document folding machine employing a flap
AssigneeSecap
InventorsJacques Beord, Herve Baumann
Life of this patent
Estimating the term…
Abstract
This folding machine comprises two input rollers (5) for feeding the paper, two output rollers (18, 18') for discharging the paper controlling the movement, a paper guide (8) pivotally mounted between the input rollers (5) and the output rollers, capable of assuming a first and a second position and comprising a press roller (14, 14'), the assembly being controlled to permit forming loops and folds of the paper.
Claims6
A sheet folding apparatus comprising:
- a pair of input rollers forming a nip therebetween through which a sheet of paper is fed;
- a first control means operatively coupled to the input rollers for controlling the movement thereof;
- a pair of output rollers forming a nip therebetween for discharging the sheet therethrough;
- a second control means operatively coupled to the output rollers for controlling the movement thereof;
- a paper guide pivotally mounted between the input rollers and output rollers, the paper guide including a press roller, the paper guide being pivotable between a first position wherein the press roller is engaged with an output roller forming a nip therebetween and a second position wherein the press roller is pivotably disengaged from the output roller.
2 more elements
A method of folding a sheet of paper comprising the steps of:
- providing a folding apparatus comprising a pair of input rollers for feeding the sheet therethrough, a pair of output rollers for discharging the sheet therethrough, means for controlling the movement of said input and output rollers, and a paper guide having a press roller, the paper guide being pivotably mounted between the input and output rollers, the paper guide being pivotable between a first position wherein the press roller is engaged with an output roller forming a nip therebetween and a second position wherein the press roller is pivotably disengaged from the output roller;
- driving the input rollers to feed a sheet through the paper guide in the second position until the sheet has been advanced a first predetermined length;
- pivoting the paper guide to the first position;
- driving the input rollers to advance the sheet a second predetermined distance to form a loop between the paper guide and output rollers;
- driving the input rollers, press roller and output rollers so that the output rollers seize an initial portion of the loop;
- and
- feeding the sheet completely through the folding apparatus.
4 more elements
A method of folding a sheet of paper comprising the steps of:
- providing a folding apparatus comprising a pair of input rollers for feeding the sheet therethrough, a pair of output rollers for discharging the sheet therethrough, means for controlling the movement of said input and output rollers, and a paper guide having a press roller, the paper guide being pivotably mounted between the input and output rollers, the paper guide being pivotable between a first position wherein the press roller is engaged with an output roller forming a nip therebetween and a second position wherein the press roller is pivotably disengaged from the output roller;
- driving the input rollers to feed a sheet through the paper guide in the first position until the sheet contacts and is held between a nip formed by the output rollers;
- pivoting the paper guide to the second position;
- driving the input rollers to advance the sheet a first predetermined distance to form a first loop between the paper guide and output rollers;
- pivoting the paper guide to the first position;
- driving the input rollers to advance the sheet a second predetermined distance to form a second loop between the paper guide and output rollers;
- driving the input rollers, press roller and output rollers so that the output rollers seize an initial portion of said second loop;
- and
- feeding the sheet completely through the folding apparatus.
6 more elements
Dependencies are inferred from the claim text.