Refrigerator Freezer Door Handle for Dual Opening in Tight Spaces
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Solution Overview
Problem
Existing refrigerators with freezing compartment doors face challenges in limited spaces, where users struggle to access foodstuffs efficiently due to fixed opening mechanisms, especially when space is constrained, necessitating a solution that allows for flexible door opening and closing methods.
Innovation Solution
A cooling device with a door handle that can be shifted between horizontal and vertical positions, utilizing a gearwheel-connected movement mechanism to enable the door to open either as a drawer or rotate around a vertical axis, allowing users to choose the opening method based on space constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door is designed with a fixed opening mechanism (either drawer-type or standard hinge-type), then the structure is simple and easy to manufacture, but the user cannot access foodstuffs efficiently in limited spaces
Solution Approach 1:
The door handle is made movable between horizontal and vertical positions, allowing the door to dynamically switch between drawer-type and hinge-type opening modes. This dynamic configuration enables the door to adapt to different space constraints without requiring multiple separate door structures
Solution Approach 2:
A single door structure is designed to perform multiple opening functions - both drawer-type sliding (when handle is horizontal) and hinge-type rotating (when handle is vertical). This multi-functionality eliminates the need for separate specialized doors for different opening preferences
2Adaptability or versatility
If the door handle is made movable between horizontal and vertical positions, then the door can be opened in multiple ways to suit different space constraints, but the device complexity increases
Solution Approach 1:
The movement mechanism integrates multiple functions into a compact assembly - the gearwheel, upper/lower movement arms, feet, and hinge components are combined into a unified mechanism that simultaneously handles both drawer sliding and hinge rotation operations through the single movable handle
3Adaptability or versatility
If a drawer-type opening mechanism is used, then the door can be opened forward in limited spaces, but the door cannot be opened by rotating around the vertical axis
Solution Approach 1:
The hinge connection is designed to be dynamic rather than fixed - the upper and lower movement arms with feet can engage or disengage from the hinge pins based on handle position. This allows the door to switch between drawer-mode (feet in rail housing) and hinge-mode (feet connected to hinge pins) as needed
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 convenient and space-efficient access to foodstuffs by allowing the door to be opened and closed in multiple ways, accommodating different installation scenarios and user preferences.
Implementation Method 1
the gearwheel in the movement mechanism is connected to the door handle and the connection point, and thus when the door handle is moved, the gearwheel also moves and actuates the movement mechanism
Implementation Method 2
the upper movement arm moves downwards and the lower movement arm moves upwards. Thus, the upper and lower hinges are released from the hinge pins and the feet on the upper movement arm are fitted into the rail housing
Data Source
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AI summary
The present invention relates to a cooling device (1) comprising a body (4); at least one compartment (13) which is disposed in the body (4) and wherein the foodstuffs are placed; a door (2) which provides access into the compartment (13); and a door handle (3) which enables the user to hold the door (2) and to open/close the door (2).