US 11,866,279 B2
Film wrinkle removing roller
Sung Hyun Yun, Daejeon (KR); Ji Hun Kim, Daejeon (KR); Joo Yong Park, Daejeon (KR); and Jae Choon Yang, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/055,675
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed May 2, 2019, PCT No. PCT/KR2019/005289
§ 371(c)(1), (2) Date Nov. 16, 2020,
PCT Pub. No. WO2019/221427, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 10-2018-0056454 (KR), filed on May 17, 2018.
Prior Publication US 2021/0198071 A1, Jul. 1, 2021
Int. Cl. B65H 23/025 (2006.01); B65H 20/02 (2006.01)
CPC B65H 23/025 (2013.01) [B65H 20/02 (2013.01); B65H 2404/10 (2013.01); B65H 2701/1752 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A film wrinkle removing roller, comprising:
a roll having a cylindrical shape;
a pair of pattern rolls positioned at both ends of the roll and having patterns; and
a roll fixing unit configured to fix positions of the roll and the pattern rolls,
wherein the pair of pattern rolls are separable from the roll, and
wherein the pair of pattern rolls are made of a different material having a different frictional force than a material and a frictional force of the roll.