US 12,227,386 B2
Replaceable stack sheet
Jong Seong Park, Gyeonggi-do (KR); Ju Il Ahn, Seoul (KR); and Hyun Sung Chung, Gyeonggi-do (KR)
Assigned to HYOSUNG TNS INC., Seoul (KR)
Filed by HYOSUNG TNS INC., Seoul (KR)
Filed on Oct. 20, 2022, as Appl. No. 17/969,807.
Claims priority of application No. 10-2021-0145798 (KR), filed on Oct. 28, 2021; and application No. 10-2021-0145799 (KR), filed on Oct. 28, 2021.
Prior Publication US 2023/0136058 A1, May 4, 2023
Int. Cl. B65H 83/02 (2006.01); B65H 5/36 (2006.01); B65H 29/20 (2006.01); B65H 31/10 (2006.01); G07D 11/165 (2019.01); G07F 19/00 (2006.01)
CPC B65H 83/025 (2013.01) [B65H 5/36 (2013.01); B65H 29/20 (2013.01); B65H 31/10 (2013.01); G07D 11/165 (2019.01); G07F 19/202 (2013.01); G07F 19/203 (2013.01); B65H 2402/31 (2013.01); B65H 2404/1114 (2013.01); B65H 2601/324 (2013.01); B65H 2601/61 (2013.01); B65H 2701/1912 (2013.01); G07D 2211/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A replaceable stack sheet replaceably provided in a medium integration/separation device to guide integration of a medium, the stack sheet comprising:
a body which is coupled to a rotary shaft and in which a plurality of support shafts are spaced apart from each other in a circumferential direction; and
a plurality of sheet pieces having ends rotatably coupled to the plurality of support shafts;
wherein the plurality of sheet pieces each include a root part formed to extend from a coupling part to which the support shaft is coupled, and a hollow part is formed in the root part to distribute a concentrated load applied to the root part due to interference and collision with a counterpart when the rotary shaft rotates in an integration direction of the medium,
wherein the root part includes a first root part having two strands of a first portion and a second portion on both sides of a position in which the hollow part is formed and a second root part formed in one strand at a position in which the hollow part is not formed and extending from the first root part,
wherein thicknesses of the first portion and the second portion of the first root part is smaller than a thickness of the second root part.