Refrigerator

Patent metadata

Field	Value
Publication number	US-10941973-B2
Application number	US-202016868234-A
Country	US
Kind code	B2
Filing date	May 6, 2020
Priority date	May 2, 2016
Publication date	Mar 9, 2021
Grant date	Mar 9, 2021

Abstract

A refrigerator includes an opening unit such that, when a second door rotates to open a second storing chamber, the second door is separated from a first door. The opening unit includes: a latch hook to be selectively inserted into a latch slot on the front surface of the first door; a pressing portion provided on a door handle of the second door, the pressing portion comprising a guide protrusion having a sloping surface; and a link portion having a contact portion on one end to contact the sloping surface and move upward/downward along the sloping surface, the other end of the link portion contacting the latch hook. When the pressing portion is pressed, the contact portion moves upward along the sloping surface, and the other end of the link portion pushes the latch hook upward with the contact portion to separate the latch hook from the latch slot.

First claim

The invention claimed is:

1. A refrigerator comprising:
a cabinet that defines a first storage compartment;
a first door that is rotatably connected to the cabinet and that is configured to open and close at least a portion of the first storage compartment, the first door defining a latch slot;
a storage device that is disposed at a rear surface of the first door and that defines a second storage compartment;
a second door that is rotatably connected to a front surface of the first door, that is configured to open and close at least a portion of the second storage compartment, and that is configured to rotate relative to the first door;
a door handle disposed at a front surface of the second door; and
an opening device that is configured to separate the second door from the first door, the opening device comprising:
a latch hook disposed at the second door and configured to insert into the latch slot,
a pressing portion disposed at the door handle, the pressing portion comprising:
a pressing member having a front surface configured to be pressed by a user, the pressing member comprising a guide protrusion that protrudes rearward from a rear surface of the pressing member and that has an inclined surface,
a first cover that defines an opening that accommodates the pressing member, and
a second cover coupled to a rear surface of the first cover, and

a link portion that connects the pressing portion to the latch hook, the link portion comprising:
a contact portion that is disposed at a first end of the link portion between the first cover and the second cover, that is configured to contact the inclined surface of the guide protrusion and to move upward and downward along the inclined surface of the guide protrusion, and that is configured to, based on the pressing portion being pressed, move upward along the inclined surface, and

wherein a second end of the link portion is configured to contact the latch hook and is configured to, based on the contact portion moving upward along the inclined surface, push the latch hook upward to separate the latch hook from the latch slot.

2. The refrigerator according to claim 1 , wherein the link portion comprises:
a first link that is disposed in the door handle and that includes the contact portion; and
a second link that is disposed in the second door and that defines the second end of the link portion.

3. The refrigerator according to claim 2 , wherein the first link and the second link are coupled to each other at a position inside the second door.

4. The refrigerator according to claim 2 , wherein the guide protrusion comprises:
a first guide protrusion that protrudes rearward from the rear surface of the pressing member; and
a second guide protrusion that protrudes rearward from the rear surface of the pressing member and that is laterally spaced apart from the first guide protrusion, and
wherein the first link is disposed between the first guide protrusion and the second guide protrusion.

5. The refrigerator according to claim 4 , wherein the contact portion comprises:
a first contact portion that is disposed on a first side surface of the first link and that is in contact with a first inclined surface of the first guide protrusion; and
a second contact portion that is disposed on a second side surface of the first link and that is in contact with a second inclined surface of the second guide protrusion.

6. The refrigerator according to claim 1 , wherein the latch hook comprises a hinge shaft and a hook portion that is configured to rotate about the hinge shaft.

7. The refrigerator according to claim 6 , wherein the hook portion comprises:
a hinge portion that receives the hinge shaft and that defines a rotation center of the hinge shaft; and
a hook member that is curved from an end of the hinge portion, that is spaced apart from the rotation center of the hinge shaft, and that is configured couple to the latch slot.

8. The refrigerator according to claim 7 , wherein the hook portion comprises a contact point that is in contact with the second end of the link portion and that is spaced apart from the hinge shaft, and
wherein the hook portion is configured to, based on the second end of the link portion pushing the contact point upward, rotate about the hinge shaft to separate the hook member from the latch slot.

9. The refrigerator according to claim 1 , wherein the first cover defines a first stopper groove recessed from a rear surface of the first cover,
wherein the second cover defines a second stopper groove recessed from a front surface of the second cover, and
wherein each of the first stopper groove and the second stopper groove is configured to limit upward and downward movement of the link portion.

10. The refrigerator according to claim 9 , wherein the link portion comprises a stopper protrusion that is disposed between the first stopper groove and the second stopper groove and that is configured to, based on the link portion moving upward, contact lower ends of the first cover and the second cover.

11. The refrigerator according to claim 1 , wherein the door handle defines a mounting groove at a front surface of the door handle, the mounting groove accommodating at least a portion of the pressing member, and
wherein the front surface of the pressing member is exposed to an outside through the mounting groove.

12. A refrigerator comprising:
a cabinet that defines a storage compartment;
a first door that is rotatably connected to the cabinet and that is configured to open and close at least a portion of the storage compartment, the first door defining a door opening and a latch slot that is spaced apart from the door opening;
a second door that is rotatably connected to a front surface of the first door, that is configured to open and close the door opening of the first door, and that is configured to rotate relative to the first door to open the door opening of the first door;
a door handle disposed at a front surface of the second door;
a pressing member disposed in the door handle and configured to move toward and away from the front surface of the second door;
a latch hook that is disposed between the first door and the second door and that is configured to couple to and release from the latch slot based on movement of the pressing member;
a first link that is disposed in the door handle, that extends downward from the pressing member, and that is configured to move upward based on the pressing member moving toward the front surface of the second door; and
a second link that is disposed in the second door, that extends upward from a lower end of the first link, and that is configured to, based on the first link moving upward, move upward to push the latch hook to release the latch hook from the latch slot.

13. The refrigerator according to claim 12 , wherein the first link and the door handle have a curved shape, and the first link extends downward along the door handle.

14. The refrigerator according to claim 12 , wherein the latch hook comprises:
a hinge shaft disposed at one end of the latch hook; and
a hook that is curved from another end of the latch hook; and
wherein the latch hook is configured to, based on an upper end of the second link pushing a contact point between the hinge shaft and the hook in an upward direction, rotate about the hinge shaft to separate the hook from the latch slot.

15. The refrigerator according to claim 14 , wherein the pressing member comprises a guide protrusion that protrudes rearward from a rear surface of the pressing member and that has an inclined surface, and
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Assignees

• Lg Electronics Inc

Inventors

• Kim Jaeyoung
• Yu Seonil

Classifications

• E05F11/54

  for doors · CPC title

• F25D23/02 Primary

  Doors; Covers (F25D23/08 takes precedence {locks or fastenings E05B65/0042}) · CPC title

• E06B3/36

  with a single vertical axis of rotation at one side of the opening, or swinging through the opening (wings requiring lifting before opening E06B3/52) · CPC title

• E05B65/0042

  For refrigerators or cold rooms (E05B17/0075 takes precedence; magnetic E05C19/16) · CPC title

• F25D23/028

  Details · CPC title