Refrigerator Rotating Door Guard for Large-Item Storage Access
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Solution Overview
Problem
Conventional refrigerators face difficulties in easily accommodating large-sized or voluminous items due to the size constraints of door guards, requiring users to close and reopen doors to retrieve items from inner compartments.
Innovation Solution
A refrigerator design featuring a rotation guard unit with a door guard that rotates clockwise or counterclockwise, utilizing a gear system and side frames to increase the door guard's width and allow for larger items to be stored, while a lock button and movement limit member facilitate controlled movement and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed door guard is used in the inner door, then beverage containers can be stored, but users cannot easily access items without closing and reopening the door
Solution Approach 1:
The door guard is transformed from a fixed structure to a rotatable structure that can pivot between a storage position (when the outer door is closed) and an access position (when the outer door is open). This dynamic configuration allows users to access beverage containers without closing the outer door, resolving the contradiction between ease of operation and device complexity.
2Ease of operation
If door guards are installed on both outer and inner doors, then beverage containers can be easily stored and accessed, but the size of the door guard is reduced making it difficult to receive large-sized items
Solution Approach 1:
The rotatable door guard on the inner door can increase its effective receiving area by rotating to a protruding position that extends beyond the outer door's door guard. This dynamic area adjustment allows the system to accommodate large-sized items while maintaining ease of operation for standard beverages.
Solution Approach 2:
The inner door's rotatable door guard can extend beyond the outer door's door guard, creating a nested configuration where the smaller inner door guard effectively becomes larger when rotated. This nesting principle allows the system to overcome the size limitation imposed by having door guards on both doors.
3Quantity of substance
If the inner door has a door guard, then beverage containers can be stored, but the width of the door guard is limited by the door structure
Solution Approach 1:
The rotatable door guard increases its effective width by rotating to a position where it protrudes beyond the static door structure. This dynamic width adjustment allows the door guard to accommodate larger quantities and sizes of items while maintaining a compact structure when not in use.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy access and storage of larger items without the need to close and reopen doors, enhancing storage capacity and user convenience by allowing the door guard to rotate and accommodate items of varying sizes.
Implementation Method 1
a gear, and the gear at a first location may be located to be spaced from a rack located on a bottom surface of the first door
Implementation Method 2
the gear at a first location may be located to be spaced from a rack located on a bottom surface of the first door
Data Source
AI summary
A refrigerator is provided. More particularly, a refrigerator having a rotating guard unit is disclosed. A part of disclosed embodiments provides a refrigerator, in which a door guard of a rotation guard unit rotates in one direction among the clockwise direction and the counterclockwise direction when the rotation guard unit is moved forward.