US 12,345,420 B2
Door hinge for oven
June Young Lee, Busan (KR); and Kyoung Rok Kim, Busan (KR)
Assigned to SEO WON KOREA CO., LTD., (KR)
Filed by SEO WON KOREA CO., LTD., Gimhae-si (KR)
Filed on Jul. 13, 2022, as Appl. No. 17/863,658.
Application 17/863,658 is a continuation of application No. PCT/KR2020/018015, filed on Dec. 10, 2020.
Claims priority of application No. 10-2020-0134096 (KR), filed on Oct. 16, 2020.
Prior Publication US 2022/0349586 A1, Nov. 3, 2022
Int. Cl. F24C 15/02 (2006.01); E05D 11/06 (2006.01); E05D 11/08 (2006.01)
CPC F24C 15/023 (2013.01) [E05D 11/06 (2013.01); E05D 11/087 (2013.01); E05Y 2201/474 (2013.01); E05Y 2201/638 (2013.01); E05Y 2900/308 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A door hinge for an appliance, the door hinge comprising:
a receptacle assembly installed in a body of the appliance coupled with a door;
a casing installed at the door and connected to the receptacle assembly through a bar extended from the receptacle assembly;
a main cam connected to the bar and comprising a main body exposed to outside of the casing, and a plurality of main wings disposed at a distal end of the main body inside the casing and having a tornado or swirl shape;
a guide cam provided inside the casing, and comprising a guide body provided with a plurality of protrusions along an outer wall thereof, and a plurality of guide wings disposed at a proximal end of the guide body, wherein the guide wings are adapted to couple to the main wings of the main cam; and
an elastic member provided inside the casing in contact with a distal end of the guide body of the guide cam,
wherein a plurality of grooves are formed inside the casing at locations corresponding to the protrusions, the grooves being configured to allow the protrusions of the guide cam to be linearly movable therein, and when the door is opened, the receptacle assembly, the bar, and the main cam are fixed, the casing and the guide cam are configured to be rotated, while the elastic member is contracted.