Method and an apparatus for folding a medium
First Claim
1. A method of folding a medium in a folding apparatus containing a rotatable folding cylinder, a first rotatable press member capable of engaging said folding cylinder to form a first folding pinch, a second rotatable press member, capable of engaging with said folding cylinder to form a second folding pinch, and a medium feed means, said method comprising the steps of:
- a) feeding the medium with the medium feed means towards the folding cylinder and between the first and second pinch;
b) directing the medium into the first folding pinch formed by engaging said first rotatable press member with said folding cylinder, by rotating the folding cylinder in a first direction;
c) forming a blouse in the medium in between said feed means and the folding cylinder; and
d) moving said blouse into said second pinch by rotating the folding cylinder in a second direction, opposite to the first direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for folding a medium in a folder, which includes a rotatable folding cylinder, a first rotatable press membercapable of engaging with said folding cylinder to form a first folding pinch, a second rotatable press membercapable of engaging with said folding cylinder to form a second folding pinch, and a medium feed means, wherein the medium is fed with the medium feed means towards the folding cylinder between the first and second pinch; b) the medium is then directed into the first folding pinch, formed by engaging said first rotatable press member with said folding cylinder, by rotating the folding cylinder in a first direction; c) a blouse is formed in the medium between said feed means and the folding cylinder; and d) said blouse is moved into said second pinch by rotating the folding cylinder in a second direction, opposite to the first direction.
29 Citations
14 Claims
-
1. A method of folding a medium in a folding apparatus containing a rotatable folding cylinder, a first rotatable press member capable of engaging said folding cylinder to form a first folding pinch, a second rotatable press member, capable of engaging with said folding cylinder to form a second folding pinch, and a medium feed means, said method comprising the steps of:
-
a) feeding the medium with the medium feed means towards the folding cylinder and between the first and second pinch; b) directing the medium into the first folding pinch formed by engaging said first rotatable press member with said folding cylinder, by rotating the folding cylinder in a first direction; c) forming a blouse in the medium in between said feed means and the folding cylinder; and d) moving said blouse into said second pinch by rotating the folding cylinder in a second direction, opposite to the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A folding apparatus, which comprises
a rotatable folding cylinder, a first and second rotatable press member, each adapted to engage with said folding cylinder to form, respectively, a first and second folding pinch, and a medium feed means for feeding the medium towards the folding cylinder in between said first and second folding pinches, wherein the folding apparatus further comprises control means for controllably driving the drive means and alternating the rotational direction of the rotatable folding cylinder during a folding program and controllably driving the medium feed means to feed the medium during a folding program towards the folding cylinder.
Specification