US 11,997,807 B2
Hinge structure and foldable electronic device including the same
Daehyeong Park, Suwon-si (KR); Jaehee Kim, Suwon-si (KR); Jongyoon Kim, Suwon-si (KR); Minsung Lee, Suwon-si (KR); Uyhyeon Jeong, Suwon-si (KR); Yonghwa Han, Suwon-si (KR); and Seunghyun Hwang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 10, 2022, as Appl. No. 17/741,094.
Application 17/741,094 is a continuation of application No. PCT/KR2022/004326, filed on Mar. 28, 2022.
Claims priority of application No. 10-2021-0104720 (KR), filed on Aug. 9, 2021; and application No. 10-2021-0110072 (KR), filed on Aug. 20, 2021.
Prior Publication US 2023/0044949 A1, Feb. 9, 2023
Int. Cl. H05K 5/00 (2006.01); F16C 11/04 (2006.01); H05K 5/02 (2006.01)
CPC H05K 5/0226 (2013.01) [F16C 11/04 (2013.01); H05K 5/0017 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A foldable electronic device comprising:
a first housing and a second housing;
a flexible display, at least a portion of which is seated on the first housing and the second housing; and
a hinge structure configured to connect the first housing and the second housing,
wherein the hinge structure includes:
a first rotary support coupled with the first housing;
a second rotary support coupled with the second housing;
a first arm part configured to rotate in response to rotation of the first rotary support, the first arm part including at least a first arm cam and a second arm cam spaced apart from the first arm cam;
a second arm part configured to rotate in response to rotation of the second rotary support, the second arm part including at least a third arm cam and a fourth arm cam spaced apart from the third arm cam;
a first rotary shaft configured to pass through a first fastening hole formed in the first arm cam and a second fastening hole formed in the second arm cam; and
a second rotary shaft configured to pass through a third fastening hole formed in the third arm cam and a fourth fastening hole formed in the fourth arm cam,
wherein shapes of cross-sections of the third fastening hole and the fourth fastening hole viewed in an axial direction in which the second rotary shaft is inserted include flat areas and curved areas, and
wherein the second rotary shaft has a first thickness of a first portion at least partially disposed in the fourth fastening hole differing from a second thickness of a second portion at least partially disposed in the third fastening hole.