Dishwasher Fastening Assembly With Movable Spacers for Niche Gaps
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Solution Overview
Problem
Existing household dishwashers face challenges in being securely fastened in built-in niches due to varying installation heights, leading to potential tipping or deformation, and require different screw lengths, complicating storage, logistics, and assembly.
Innovation Solution
A fastening device with movable spacer elements and holding devices that adjust to different gap heights, allowing for flexible installation and distribution of forces to prevent tipping or deformation, while maintaining secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fastening screws are used to secure the dishwasher in a built-in niche, then the dishwasher can be fixed in position, but varying niche heights cause different gap distances requiring different screw lengths, complicating storage and assembly
Solution Approach 1:
The fastening device incorporates movable spacer elements that can adjust their position dynamically to accommodate varying gap distances between the dishwasher and the niche wall, eliminating the need for multiple fixed-length screw variants
Solution Approach 2:
A single universal fastening device design can adapt to different installation situations through the movable spacer mechanism, serving multiple gap distance requirements without requiring different screw types or lengths
2Reliability
If fastening screws are screwed deeply into the niche wall to prevent tipping, then holding force increases, but impermissible force stresses and deformation of dishwasher parts can occur
Solution Approach 1:
Movable spacer elements act as intermediaries between the fastening screws and the dishwasher structure, distributing and absorbing force stresses to prevent deformation while maintaining adequate holding force
Solution Approach 2:
The movable spacer elements are designed to absorb and cushion force stresses before they reach critical levels that would cause deformation of dishwasher parts, providing protective buffering in advance
3Adaptability or versatility
If the dishwasher is installed in niches with different internal dimensions, then installation flexibility is required, but fixed fastening devices cannot accommodate varying gap heights
Solution Approach 1:
The fastening device employs movable spacer elements that can dynamically adjust their position to accommodate varying gap distances, enabling installation flexibility across different niche dimensions
Solution Approach 2:
The spacer elements can change their effective length parameter by moving along the fastening screw, adapting to different gap height parameters in various installation situations
Data Source
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AI summary
The fastening device (9) of a dishwasher (1), in particular a domestic dishwasher, for installing its washing compartment (20) in a built-in niche (2) is on at least one side of the washing compartment (20) facing at least one niche wall (3) of the built-in niche (2). intended. It comprises one or at least two holding devices (HE1, HE2), each of which has or have a receiving part (41, 42) for receiving a fastening element (71, 72), in particular a fastening screw, opposite which a spacer element (61, 62), in particular sleeve part, can be guided relatively movably.