Laundry Door Bayonet Ring for Tool-Free Hinge Reversal
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Solution Overview
Problem
Existing laundry treatment machines lack easy and efficient methods for assembling, disassembling, and changing decorative rings and hinge stops, requiring special tools and multiple actions.
Innovation Solution
A loading door design featuring bayonet-style connecting elements that engage and disengage with a rotational movement, allowing for simple assembly and disassembly without special tools, and a hinge holder system that can be easily exchanged, enabling users to change hinges and decorative rings with minimal effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional locking mechanisms are used to fix the decorative ring to the door frame, then the connection is reliable, but the assembly and disassembly require special tools and multiple actions
Solution Approach 1:
The connecting elements are designed to transition from a static locked state to a dynamic unlocked state through rotational movement. The bayonet-style connecting elements allow the decorative ring to be rotated into engagement and out of engagement, transforming the assembly/disassembly process from a complex multi-step operation into a simple dynamic motion that any user can perform with one hand.
Solution Approach 2:
The fixing element is designed to be extractable from the door frame receptacle. By removing the fixing element, the rotational connection between the decorative ring and door frame is released, allowing easy disassembly. This extraction principle enables users to quickly remove and replace decorative rings without tools or complex procedures.
2Adaptability or versatility
If the decorative ring is firmly fixed to the door frame, then the fixation is reliable, but the hinge or hinge stop cannot be changed
Solution Approach 1:
The connecting elements provide a dynamic fixation system that can be engaged or disengaged at will. The bayonet-style connection allows the decorative ring to be firmly fixed during normal operation, yet easily released when hinge replacement is needed. This dynamic characteristic enables both reliable fixation and adaptability for maintenance operations.
Solution Approach 2:
The fixing element incorporates a self-locking mechanism that automatically secures the decorative ring to the door frame through rotational engagement, eliminating the need for additional fastening steps. During normal use, the connection is self-sustaining and reliable. When hinge replacement is needed, the user can simply rotate the decorative ring to disengage it, providing self-service capability without requiring tools or technical expertise.
3Reliability
If multiple fixing elements are used to secure the decorative ring, then the connection is more reliable, but the assembly process becomes more complex
Solution Approach 1:
Multiple connecting elements are merged into a single integrated bayonet-style connection system. Instead of using separate screws, clips, or fasteners distributed around the decorative ring, all connection functions are combined into the rotational engagement mechanism. This merging reduces assembly complexity from multiple discrete steps to a single rotational motion while maintaining reliable fixation through the distributed nature of the bayonet elements.
Solution Approach 2:
The fixing element serves multiple functions simultaneously: it provides rotational engagement for secure fixation, incorporates a self-locking mechanism for reliability, and allows easy disengagement through reverse rotation. This multi-functionality eliminates the need for separate locking mechanisms, fasteners, or tools, simplifying the overall assembly process while maintaining high connection reliability.
Data Source
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AI summary
The invention relates to a loading door (1) for a laundry treatment machine, comprising a door frame (2) and a decorative ring (5) which is releasably connected to the door frame (2) by means of corresponding connecting elements (15, 16) on the door frame and on the decorative ring. The connecting elements (15, 16) connectively engage with each other by rotating (46) the decorative ring (5) relative to the door frame (2), and at least one releasable securing element (20) prevents further rotation (48) if necessary. The aim of the invention is to create a loading door in which the decorative ring can be easily and effortlessly assembled and disassembled even by the operator or user in order to be able to easily change the hinge. For this purpose, the door frame (2) has a first receptacle (21) which is adapted to the dimensions of the securing element (20) and into which the securing element (20) can be inserted. Furthermore, the securing element (20) is a hinge retainer that can be connected to the door frame.