US 12,405,053 B2
Refrigerator and elevation device for refrigerator
Kwanghyun Choi, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jun. 13, 2024, as Appl. No. 18/742,220.
Application 18/742,220 is a continuation of application No. 18/140,238, filed on Apr. 27, 2023, granted, now 12,050,050.
Application 18/140,238 is a continuation of application No. 17/673,526, filed on Feb. 16, 2022, granted, now 11,668,517, issued on Jun. 6, 2023.
Application 17/673,526 is a continuation of application No. 17/126,468, filed on Dec. 18, 2020, granted, now 11,287,178, issued on Mar. 29, 2022.
Application 17/126,468 is a continuation of application No. 16/230,474, filed on Dec. 21, 2018, granted, now 10,921,052, issued on Feb. 16, 2021.
Claims priority of application No. 10-2018-0071898 (KR), filed on Jun. 22, 2018.
Prior Publication US 2024/0328707 A1, Oct. 3, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F25D 25/02 (2006.01); F25D 23/02 (2006.01)
CPC F25D 25/022 (2013.01) [F25D 25/025 (2013.01); F25D 23/021 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a cabinet that defines a storage space;
a drawer door including:
a drawer part with an accommodation space for configured to insert into and withdraw from the storage space in a front-rear direction, and
a front panel door coupled to a front portion of the drawer part and configured to open and close at least a portion of the storage space;
an elevation device provided in the drawer part and configured to elevate an object stored in the accommodating space relative to a bottom surface of the drawer part; and
a driving device located in the front panel door and configured to supply driving force to move the elevation device,
wherein the elevation device comprises a plurality of rods disposed in the accommodation space, the plurality of rods comprising a first rod and a second rod rotatably coupled to and cross each other in a left-right direction,
wherein the first rod is one of a pair of first rods that are spaced apart from each other in the front-rear direction and parallel to each other,
wherein the second rod is one of a pair of second rods that are spaced apart from each other in the front-rear direction and parallel to each other,
wherein the elevation device further comprises:
a first rotation shaft disposed between the pair of the first rods in the front-rear direction and rotatably connected to one end of the first rods at a fixed position in the drawer part, and
a first sliding shaft disposed between the pair of the first rods in the front-rear direction, connected to the other end of the first rods and slidably moving in the left-right direction based on rotating of the first rotation shaft, and
wherein the driving device comprises:
a motor assembly disposed in the front panel door to generate a driving force to drive the elevation device, and
a fixing shaft disposed at a position corresponding to the first rotation shaft in the front panel door in the front-rear direction and rotatably connected to the motor assembly and the first rotation shaft.