Left-right door opening mechanism for a refrigerator

Patent metadata

Field	Value
Publication number	US-11255116-B2
Application number	US-201616302098-A
Country	US
Kind code	B2
Filing date	Dec 29, 2016
Priority date	May 31, 2016
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A mechanism for opening a door of a refrigerator from either the left side or the right side of the door includes a pair of first modules arranged symmetrically about the center line of the door on the left side and the right side of the door, and a pair of second modules arranged symmetrically about the center line of a refrigerator body on the left side and the right side of the refrigerator body. Each first module comprises an opening and a gear which is rotatably mounted on the door. Each second module comprises a rack configured to be engaged with one of the gears, a hinge, a rotating shaft and a guiding slider for guiding a rotation of one of the gears.

First claim

What is claimed is:

1. A mechanism for opening a door on either a left side of the door or a right side of the door, comprising a pair of first modules arranged symmetrically about a center line of the door on the left side and the right side of the door, a mounting bottom plate fixedly mounted on the door and having two ends respectively located at the left and right sides of the door, and a pair of second modules arranged symmetrically about a center line of a refrigerator body on a left side and a right side of the refrigerator body, wherein each first module comprises a gear, the gears of the pair of first modules are respectively rotatably mounted on the two ends of the mounting bottom plate; each first module comprises an opening; each second module comprises a rack configured to be engaged with a corresponding one of the gears of the pair of first modules, a hinge, a rotating shaft, and a guiding slider for guiding a rotation of the corresponding one of the gears of the pair of first modules; each of the hinges has a respective one of the rotating shafts and a respective one of the guiding sliders mounted thereon; wherein a portion of each of the hinges is sandwiched between a respective one of the racks and the respective one of the guiding sliders; and each of said racks is fixed on a respective one of the hinges; when the door is in a closed state relative to the refrigerator body, the gears of the pair of first modules are respectively engaged with the racks of the pair of second modules and the rotating shafts of the pair of second modules are respectively located in the openings of the pair of first modules; when the door is opened from the right side of the door, the gear on the right side of the door is driven by the rack on the right side of the refrigerator body, and the rotating shaft on the right side of the refrigerator body is removed from the opening of the first module on the right side of the door, such that the rotating shaft on the right side of the refrigerator body is disengaged from the first module on the right side of the door; meanwhile, the rotating shaft on the left side of the refrigerator body is still located in the opening of the first module on the left side of the door.

2. The mechanism according to claim 1 , wherein the gears are symmetrically mounted on the mounting bottom plate; the racks, the hinges, the rotating shafts and the guiding sliders are symmetrically mounted on the refrigerator body; when the door is opened from the left side of the door, the gear on the left side of the door rotates in a direction, when the door is opened from the right side of the door, the gear on the right side of the door rotates in the direction.

3. The mechanism according to claim 1 , wherein the opening of each of the first modules comprises a second opening in a respective one of the gears; each of the two ends of the mounting bottom plate includes a first main body portion having an arc shape and a first opening that faces a corresponding one of the rotating shafts of the pair of second modules; each of the gears is provided with a second main body portion having an arc shape; the second main body portions rotate around a corresponding one of the first main body portions on the mounting bottom plate; each of the second openings face a corresponding one of the rotating shafts of the pair of second modules.

4. The mechanism according to claim 3 , wherein a guiding member extends downwards from each of the second main body portions; each of the two ends of the mounting bottom plate includes a guiding groove having an arc shape; each of the guiding members moves along a corresponding one of the guiding grooves on the mounting bottom plate.

5. The mechanism according to claim 1 , wherein each of the guiding sliders is provided with a plurality of limiting members or guiding grooves which are used for limiting movement of or guiding the corresponding one of the gears of the pair of first modules, and an attracting portion for attracting a respective one of the racks.

6. The mechanism according to claim 5 , wherein each of the hinges is provided with a plurality of accommodating grooves to limit movement of the respective one of the racks and the respective one of the guiding sliders.

7. A refrigerator, comprising the mechanism according to claim 1 .

Assignees

• Qingdao Haier Joint Stock Co Ltd

Inventors

• Zhang Hao
• Xia Enpin
• Zhu Xiaobing

Classifications

• F25D23/028 Primary

  Details · CPC title

• E05D15/505 Primary

  by radial separation of the hinge parts at the hinge axis · CPC title

• E05Y2201/712

  with incomplete toothing · CPC title

• F25D2323/022

  Doors that can be pivoted either left-handed or right-handed · CPC title

• E05Y2201/722

  Racks · CPC title