Side-Opening Retractable Appliance Door for Safe Unobstructed Access
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Solution Overview
Problem
Cooking appliances with side-opening doors lack efficient mechanisms for safe and space-efficient storage of the door when not in use, posing risks of injury and obstructing access to the cavity.
Innovation Solution
A side-opening appliance door system featuring a vertically-oriented hinge and roller assembly that transitions into a door storage space along a track, with an abutment portion arresting the door in the fully open position and allowing it to be retracted inconspicuously, providing unobstructed access to the cavity and reducing the risk of burns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a side-opening door is used to cover the cavity, then access to the cavity is provided, but the door obstructs space and poses safety risks when not in use
Solution Approach 1:
The door is extracted from its traditional fixed position and integrated with a retractable mechanism that allows it to be removed from the operational area entirely. The roller assembly and track system enable the door to be taken out of the way and stored within the appliance body, eliminating obstruction and safety hazards while maintaining access functionality when needed.
Solution Approach 2:
The door system transitions from a static, fixed-position door to a dynamic, multi-position system. The door can pivot on the vertical hinge, retract along the track, and be arrested at different positions including a fully retracted position where it is stored within the appliance. This dynamic behavior allows the door to adapt between providing access and eliminating obstruction.
2Object-affected harmful factors
If the door is made retractable to improve safety and space efficiency, then door storage is achieved, but the mechanism complexity increases
Solution Approach 1:
The hinge mechanism and roller assembly are merged into an integrated system. The vertical hinge provides the rotational axis, while the roller assembly with track provides the translational path. These two mechanisms work together as a unified system, reducing the need for separate complex components and simplifying the overall structure while achieving retractability.
Solution Approach 2:
The roller assembly acts as an intermediary element between the door and the track system. The rollers engage with the track to guide and constrain the door's motion, providing a simple mechanical interface that translates rotational motion into linear retraction without requiring complex linkages or actuators.
3Area of stationary object
If the door is fully retracted into the appliance body, then unobstructed access is provided, but the door must be precisely arrested to prevent damage
Solution Approach 1:
The abutment portion is designed to preemptively contact the vertical hinge before the door can be fully retracted or overshoot its intended position. This preliminary contact prevents excessive travel that could cause damage to the door, hinge, or track system, ensuring reliable positioning without requiring complex sensors or control systems.
Data Source
AI summary
An appliance may include an appliance door configured to selectively open and close a cavity of the appliance. The door may be side-opening and retractable into a door storage space situated laterally adjacent to the appliance cavity. The door may be arrested in alignment with a track in the door storage space by an abutment portion of the door, and transitioned into the door storage space on rollers engaged with a track.