Refrigerator Receiving Box Cover Rotation for Dual Drawer Access
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Solution Overview
Problem
Conventional refrigerators face difficulties in simultaneously opening stacked receiving boxes due to interference from the obliquely lifted cover of the lower box, preventing simultaneous access and causing inconvenience in moving food between boxes.
Innovation Solution
The design includes receiving boxes with downwardly and upwardly inclined slopes on their sidewalls, allowing the cover to pivotally rotate and avoid interfering with the pull-out path of the upper box, enabling both boxes to be opened successively with the aid of rolling frictional portions and telescopic slide rails for increased pull-out distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the first receiving box protrudes forward relative to the second receiving box to maximize space utilization, then the interior space utilization is improved, but the cover of the first receiving box interferes with the pull-out path of the second receiving box when both are opened simultaneously
Solution Approach 1:
The cover is designed to dynamically change its position based on the movement state of the receiving box. When the first receiving box is pulled out, the cover automatically rotates to a horizontal position due to the inclined slope mechanism, clearing the path for the second receiving box. This dynamic adjustment resolves the interference problem while maintaining the stepped arrangement for space optimization.
Solution Approach 2:
The inclined slope on the sidewall of the first receiving box is pre-configured to automatically trigger the cover's rotation before the cover can interfere with the second receiving box's pull-out path. This preliminary action ensures that the cover is already in the correct position (horizontal) before the second receiving box needs to move, preventing interference in advance.
2Ease of manufacture
If the cover is hinged to the shelf to close the protruding portion of the first receiving box, then the closing function is improved, but the cover collides with the second receiving box when both are opened, making simultaneous opening impossible
Solution Approach 1:
The cover transitions from a static hinged structure to a dynamic one that automatically adjusts its position. The inclined slope mechanism causes the cover to rotate to a horizontal position when the first receiving box is pulled out, and rotate back when pushed in. This dynamic behavior eliminates the collision problem while preserving the closing function.
Solution Approach 2:
The cover's orientation parameter is changed dynamically based on the receiving box's position. When the first receiving box is pulled out, the cover's orientation changes from inclined (closed position) to horizontal (open position) through the inclined slope mechanism. This parameter change allows the cover to clear the path for the second receiving box without losing its closing capability.
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
This configuration allows for easy and convenient access to both receiving boxes, enhancing user convenience and maximizing storage efficiency by enabling the transfer of food between them without interference.
Implementation Method 1
rolling frictional portions
Data Source
AI summary
A refrigerator having an improved receiving box in contact with a cover. The refrigerator includes a first receiving box, and a cover installed to come into contact with the first receiving box and adapted to be pivotally rotated as the first receiving box is pulled out or pushed in. The first receiving box includes a sidewall having a downwardly-inclined slope with respect to a front of the first receiving box. The cover is pivotally rotated downward by movement of the cover on the downwardly-inclined slope when the first receiving box is pulled out and is pivotally rotated upward when the first receiving box is pushed in. With this configuration, the refrigerator has the effect of allowing a user to easily move food stored in a plurality of receiving spaces from one receiving space to another.