Dishwasher Spacer Sleeve Assembly With Rotational Locking
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Solution Overview
Problem
The existing methods for securing built-in domestic appliances, such as dishwashers, to furniture walls are cumbersome due to the need for manual adjustment of spacer sleeves to bridge gaps, complicating the assembly process and requiring precise rotational alignment.
Innovation Solution
A length-adjustable spacer sleeve system with a rotational securing mechanism that limits rotational movement, allowing the second sleeve part to be automatically adjusted by the fastening screw, simplifying assembly by ensuring the sleeve parts are securely locked in place without requiring manual alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of spacer sleeve is used to bridge gaps, then the appliance can be secured to the wall, but the assembly process becomes cumbersome and requires precise rotational alignment
Solution Approach 1:
The fastening screw serves dual functions: it both secures the appliance to the wall and automatically adjusts the length of the spacer sleeve by rotating the second sleeve part. The system performs its own adjustment without requiring separate manual operations, eliminating the need for precise pre-alignment and simplifying the assembly process.
Solution Approach 2:
The invention combines the fastening function and the length adjustment function into a single integrated mechanism. The fastening screw simultaneously performs both tasks that were previously separate (securing the appliance and adjusting the spacer sleeve), reducing the number of assembly steps and eliminating the need for precise rotational alignment.
2Reliability
If rotational alignment is required for spacer sleeve adjustment, then secure fastening is achieved, but assembly time and effort increase
Solution Approach 1:
The system automatically performs the rotational alignment and length adjustment of the spacer sleeve as the fastening screw is being tightened. The adjustment occurs naturally during the fastening process itself, eliminating the need for separate alignment steps and reducing assembly time while maintaining secure fastening.
Solution Approach 2:
The spacer sleeve is pre-configured with the rotational securing means and entrainer section that enable automatic adjustment during fastening. The mechanism is prepared in advance to perform the rotational alignment action automatically when the fastening screw is inserted and tightened, eliminating the need for manual pre-alignment.
3Adaptability or versatility
If the second sleeve part is freely adjustable, then length adaptation is possible, but unintended rotational movement occurs during assembly
Solution Approach 1:
The second sleeve part transitions from a freely adjustable state to a rotationally secured state during the assembly process. The rotational securing means engages to prevent unintended rotational movement once the desired length is achieved, while the entrainer section allows controlled rotational movement during the adjustment phase. This dynamic behavior provides both adaptability and stability as needed.
Solution Approach 2:
The rotational securing means acts as an intermediary mechanism that controls the rotational movement of the second sleeve part. It allows controlled rotation for length adjustment while preventing unintended rotation during assembly, mediating between the need for adjustability and the need for rotational stability.
Data Source
AI summary
A built-in domestic appliance is provided that has a length-adjustable spacer sleeve to fasten the built-in domestic appliance to a wall with a fastening screw. The length-adjustable spacer has a first sleeve part mounted on the built-in domestic appliance and a second sleeve part that is telescopically adjustable relative to the first sleeve part and that is adjustable, in length, along an axis with respect to the first sleeve part until the second sleeve part is in contact with the wall. The built-in domestic appliance also includes a rotational securing assembly that limits rotational movement of the second sleeve part about the axis.