Hinge Cover with Integrated Door Stop to Prevent Rotation Damage
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Solution Overview
Problem
Refrigerator door hinges lack effective mechanisms to limit door rotation and prevent damage to doors and cabinets, leading to potential damage and inefficient operation.
Innovation Solution
A hinge cover with a main body, an extended hook-shaped member, and a stopper member that covers the hinge assembly and limits door opening, preventing damage by engaging the door surface in a stop position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a hinge cover is used to cover the hinge assembly, then the aesthetic appearance is improved, but the door rotation is not limited and damage may occur
Solution Approach 1:
The patent merges the aesthetic cover function with the functional door stop mechanism into a single integrated hinge cover assembly. The cover body and stop member are formed as one unit, combining protective aesthetics with rotation limitation functionality.
Solution Approach 2:
The hinge cover serves multiple functions simultaneously: it provides aesthetic coverage for the hinge assembly, limits door rotation through the stop member, and protects the hinge mechanism. This multi-functionality resolves the contradiction by adding protective capability without compromising appearance.
2Device complexity
If no door stop mechanism is provided, then the device complexity is reduced, but damage to door surfaces may occur
Solution Approach 1:
The door stop mechanism is merged with the hinge cover structure, eliminating the need for separate stop components. The stop member is integrated into the cover body, maintaining simplicity while preventing door surface damage.
Solution Approach 2:
The hinge cover assembly provides its own door stopping function through the integrated stop member, eliminating the need for additional external stopping mechanisms. The structure serves itself by incorporating the protective function directly into the cover.
3Reliability
If the hinge cover is designed with additional stop members, then door rotation limitation is improved, but the manufacturing complexity increases
Solution Approach 1:
The hinge cover is segmented into functional zones: the cover body for aesthetic protection and the stop member for rotation limitation. This segmentation allows each part to be optimized for its specific function while maintaining manufacturability through modular design.
Solution Approach 2:
The stop member's position, shape, and dimensions can be adjusted as design parameters to achieve the desired door rotation limitation while maintaining ease of manufacture. These parameter changes allow optimization of the stopping function without fundamentally changing the manufacturing process.
Data Source
Figure 1
Figure 2A
Figure 2B~2C
AI summary
A hinge cover (10) for a cabinet (102) having a door stopper integrated therewith. The hinge cover (10) includes a main body (14) with a hook-shaped portion (20) along a hinge axis (110), and a stopper member (24; 54) that is offset from the hinge axis. When one or more doors (105) are opened about the hinge axis (110), the stopper member (24; 54) engages a surface (115) of the door in a stop position.