Laundry Treating Apparatus Door with Dual-Axis Hinge Switching
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Solution Overview
Problem
Conventional laundry treating apparatuses have limitations in door rotation, as the door typically rotates about a single vertical axis, which can lead to issues when switching between different rotational axes, affecting the opening and closing mechanism of the introduction port.
Innovation Solution
The apparatus incorporates a dual rotational axis system with a door that can rotate about two different axes, utilizing a hinge and switching unit configuration that allows users to switch between these axes, and includes locking mechanisms to maintain the door's position during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single vertical axis rotation system is used for the door, then the structure is simple, but the door cannot open the introduction port in different directions
Solution Approach 1:
The hinge system is designed to be dynamically reconfigurable, allowing the door to switch between two different rotational axes. The first and second hinges can be positioned in different configurations, enabling the door to rotate about a first rotational axis or a second rotational axis depending on the operational requirements, thus providing adaptability without permanent complexity
Solution Approach 2:
The hinge system is segmented into multiple independent hinge units (first hinge and second hinge) that can be selectively positioned. This segmentation allows the door to be attached to the cabinet through different hinge configurations, enabling multiple rotation directions while keeping each individual hinge component relatively simple
2Adaptability or versatility
If a dual rotational axis system is implemented, then the door can open in different directions, but unintended axis switching may occur during operation
Solution Approach 1:
The switching unit is designed to prevent unintended axis switching by requiring a specific reciprocating motion to activate the switching mechanism. This preliminary anti-action ensures that the door cannot accidentally switch rotational axes during normal operation, as the switching unit remains in a locked position unless deliberately actuated by the user through the prescribed reciprocating motion
Solution Approach 2:
The switching unit acts as an intermediary mechanism between the door and the hinge system. It mediates the connection between the door and different rotational axes, allowing intentional switching while preventing accidental changes. The switching unit must be deliberately actuated to engage or disengage the hinge connections, providing a reliable interface that maintains stability during normal operation
3Ease of operation
If switching units are added to enable axis switching, then user convenience is improved, but the device complexity increases
Solution Approach 1:
The switching unit is designed to be operated directly by the user through a simple reciprocating motion, without requiring additional actuators, motors, or complex control systems. The user themselves performs the switching function by moving the switching unit, which directly engages or disengages the hinge connections, eliminating the need for automated switching mechanisms and reducing overall system complexity
Solution Approach 2:
The switching function is extracted as a separate, standalone unit that can be independently operated. Rather than integrating the switching mechanism into the hinge structure itself, the switching unit is provided as a distinct component that the user can manipulate to change the rotational axis, simplifying the overall design by separating the switching function from the hinge mechanism
Data Source
AI summary
A laundry treating apparatus includes a cabinet, a door, a first hinge including a first shaft and a first shaft receiving unit, a second hinge including a second shaft and a third shaft configured to rotatably fix the second shaft to the cabinet and to define a second rotational axis of the door, a third hinge including a fourth shaft and a fourth shaft receiving unit such that the fourth shaft is detachably received in the fourth shaft receiving unit, a first switching unit provided in the door, a second switching unit provided in the door, the second switching unit being configured to close the fourth shaft receiving unit, and a withdrawal prevention unit configured to detachably couple second switching unit to the third hinge when the second switching unit closes the fourth shaft receiving unit.