US 12,233,632 B2
Sheet separation device, laminator, image forming apparatus, and image forming system
Sho Asano, Kanagawa (JP); Tomohiro Furuhashi, Kanagawa (JP); Wataru Takahashi, Tokyo (JP); Yoshito Suzuki, Chiba (JP); Shinya Monma, Kanagawa (JP); Joji Akiyama, Kanagawa (JP); Yohsuke Haraguchi, Kanagawa (JP); and Wataru Nozaki, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Appl. No. 17/792,490
Filed by Sho Asano, Kanagawa (JP); Tomohiro Furuhashi, Kanagawa (JP); Wataru Takahashi, Tokyo (JP); Yoshito Suzuki, Chiba (JP); Shinya Monma, Kanagawa (JP); Joji Akiyama, Kanagawa (JP); Yohsuke Haraguchi, Kanagawa (JP); and Wataru Nozaki, Kanagawa (JP)
PCT Filed Mar. 3, 2021, PCT No. PCT/IB2021/051747
§ 371(c)(1), (2) Date Jul. 13, 2022,
PCT Pub. No. WO2021/186273, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 2020-048396 (JP), filed on Mar. 18, 2020.
Prior Publication US 2023/0059133 A1, Feb. 23, 2023
Int. Cl. B32B 43/00 (2006.01); B32B 37/00 (2006.01); B32B 37/14 (2006.01); B32B 37/18 (2006.01); B65H 5/30 (2006.01)
CPC B32B 43/006 (2013.01) [B32B 37/0053 (2013.01); B32B 37/142 (2013.01); B32B 37/185 (2013.01); B65H 5/301 (2013.01); B32B 2037/0061 (2013.01); B65H 2801/24 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sheet separation device configured to separate a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet, the sheet separation device comprising:
a winding member configured to rotate and wind the two-ply sheet;
a conveyance roller pair configured to convey the two-ply sheet toward the winding member; and
a separation member configured to be inserted into a gap between the two sheets at a position between the winding member and the conveyance roller pair,
wherein the separation member is disposed on a side where the winding member is located relative to an imaginary plane, and the imaginary plane passes through a nip of the conveyance roller pair and a winding start position at which the two-ply sheet starts to be wound around the winding member.