US 7,320,663 B2
Continuous medium folding device and continuous medium printing apparatus having thereof
Yasunori Toda, Kawasaki (Japan)
Assigned to Fuji Xerox Co., Ltd., Tokyo (Japan)
Filed on Nov. 16, 2001, as Appl. No. 9/987,901.
Claims priority of application No. 2001-249119 (JP), filed on Aug. 20, 2001.
Prior Publication US 2003/0036469 A1, Feb. 20, 2003
Int. Cl. B31F 1/08 (2006.01)
U.S. Cl. 493—414  [493/413; 493/12; 493/27] 8 Claims
OG exemplary drawing
 
1. A device for folding a continuous paper having perforations, the device comprising:
a swing arm pivotable about an axis at one end of the swing arm to guide the continuous paper to be accordion-folded along the perforations with equal widths as a result of a swinging operation of the swing arm, and
a table that receives the folded continuous paper fed via the swing arm,
wherein the swing arm includes a telescopic structure varying the length of the swing arm to at least two different lengths in a swing,
wherein the swing arm comprises an arm main body, a sub-arm disposed on a free end of said arm main body, and a telescoping operation motor which extends and retracts said sub-arm from the tip of said arm main body,
wherein said swing arm is pivoted about said axis by a swing operation motor disposed in said axis,
wherein said sub-arm has a pair of plate members that both project from the tip of said arm main body when the swing arm swings to either side, and
wherein said sub-arm maintains a pre-determined distance between a lowest portion of said sub-arm and an upper surface of said continuous paper placed on the table, thereby reducing a size of a part of the continuous paper which is subjected to a wind-pressure.