Reversible Door Mechanism for Home Appliances
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Solution Overview
Problem
Home appliances often have doors that can only be opened and closed in one direction, limiting their usability and requiring complete separation from the main body to change the opening direction, which can lead to safety issues during installation.
Innovation Solution
A home appliance design featuring a door that can be opened and closed in both directions, utilizing a dual door opening/closing system with a locking mechanism to prevent simultaneous right or left opening, allowing the door to be rotated without complete separation from the main body, using a combination of handles, moving members, and locking members to facilitate easy direction change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a door is installed on one side of the home appliance to open and close in only one direction, then the structure is simple and easy to manufacture, but the usability is limited and cannot adapt to different installation spaces
Solution Approach 1:
The door opening/closing system is divided into two independent subsystems: a first door opening/closing system for right-side opening and a second door opening/closing system for left-side opening. Each subsystem includes its own handle, moving member, and associated locking mechanism. This segmentation allows the door to be opened in either direction while maintaining manageable complexity through modular design.
Solution Approach 2:
The door is designed with dual functionality to open both to the right and to the left, making it adaptable to different installation spaces and user needs. The same door structure serves multiple opening directions, eliminating the need for separate single-direction doors and improving versatility without requiring complete door replacement.
2Ease of operation
If a door can be opened and closed in both directions, then the usability is improved, but the locking mechanism complexity increases to prevent simultaneous opening in both directions
Solution Approach 1:
The locking functions for both opening directions are merged into a single sliding locking member that interacts with both the first and second door opening/closing systems. The locking member slides horizontally to engage or disengage from moving members on both sides, providing coordinated locking control without requiring separate locking mechanisms for each direction.
Solution Approach 2:
The locking member acts as an intermediary component that mediates between the first and second door opening/closing systems. When the locking member engages with a moving member, it prevents operation of that subsystem while allowing the other subsystem to function, thus coordinating the dual-opening capability without direct conflict between the two systems.
3Adaptability or versatility
If the locking member is disposed to be slidable between the first and second door opening/closing systems, then the door opening direction can be changed easily, but the precision of locking control must be maintained to prevent accidental opening
Solution Approach 1:
The locking member is designed to slide horizontally along the door width, providing dynamic repositioning capability. This sliding motion allows the locking member to engage with moving members positioned for either right-side or left-side opening, enabling easy direction changes while maintaining secure locking through controlled engagement positions.
Data Source
AI summary
A home appliance has a door capable of being opened and closed in opposite directions. The home appliance includes a main body having an inner space and a door rotatably installed on the right or left side of the main body to open and close the inner space. A first door opening/closing system is provided on the right sides of the main body and the door to be involved in a right opening of the door. A second door opening/closing system is provided on the left sides of the main body and the door to be involved in a left opening of the door. A locking member is disposed to be slidable in a left-right direction between the first door opening/closing system and the second door opening/closing system.