Adjustable Hinge Assembly for Cooling Appliance Door Alignment
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Solution Overview
Problem
Cooling appliances experience misalignment of the door due to weight-induced sagging, leading to energy inefficiency and aesthetic deterioration, necessitating user-adjustable solutions to prevent maintenance costs.
Innovation Solution
An adjustable hinge assembly with a housing, base bracket, and screws that allow horizontal movement of the door, enabling users to align the door without service intervention, comprising a first screw for back-and-forth adjustment and a second screw for sideways adjustment, integrated with adjustment mechanisms and alignment features for robust operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door is fixed to the body using a conventional hinge assembly, then the door remains stationary and structurally simple, but the door sags over time due to weight causing misalignment and gaps
Solution Approach 1:
The hinge assembly is designed with adjustable components including a position adjustment mechanism with first and second adjustment screws, allowing the door position to be dynamically changed relative to the body. This enables correction of sagging and misalignment that occurs during prolonged use, transforming a static hinge into a dynamic adjustment system.
Solution Approach 2:
The hinge assembly incorporates parameter adjustment capabilities through threaded screws and sliding mechanisms that allow modification of the door's position parameters (horizontal and vertical alignment). This enables the system to adapt to changes in door weight distribution and correct alignment drift over time.
2Reliability
If the door alignment is corrected by service providers, then proper alignment is restored, but maintenance costs increase and user convenience decreases
Solution Approach 1:
The hinge assembly includes user-accessible adjustment mechanisms with screws and slots that allow end users to perform alignment corrections themselves without requiring service providers. The design enables users to adjust the door position by manipulating the adjustment screws and sliding components directly.
Solution Approach 2:
The adjustment function is segmented into independent directional adjustments (first screw for horizontal alignment, second screw for vertical alignment) that can be adjusted separately. This modular approach simplifies the adjustment process and allows users to address specific alignment issues without complex procedures.
3Adaptability or versatility
If the door is allowed to move freely to correct misalignment, then alignment flexibility improves, but structural stability and precision decrease
Solution Approach 1:
The adjustment mechanism replaces simple mechanical hinges with a screw-driven positioning system that converts rotational motion into precise linear displacement. This mechanical substitution enables controlled, incremental adjustments with high precision through the threaded screw mechanisms and slot-guided sliding components.
Solution Approach 2:
The adjustment system provides more adjustment capability than strictly necessary, allowing users to make small incremental adjustments to achieve precise alignment. The multiple adjustment screws and sliding slots enable fine-tuning beyond what a simple fixed hinge could provide.
Data Source
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AI summary
The present invention relates to a cooling device (1) comprising; a body (2) having a cooling compartment, a door (3) for accessing the respective cooling compartment, an adjustable hinge assembly (4) comprising a housing (5) placed onto the door (3) wherein the housing (5) comprises a pivot (6), a base bracket (7) adapted to be fixed to the body (2) wherein the base bracket (7) comprises a counterpart pivot (8) which is adapted to engage pivotably with the pivot (6).