Rigid Friction Covers for Automatic Pool Cleaner Disc Fins
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing automatic pool cleaner discs with flexible fins lack discussion on outwardly-extending protrusions composed of multiple pieces, adaptors to reduce friction, and mechanisms for enhanced integrated movement of fins and planar disc sections.
Innovation Solution
Separate covers made from more rigid and lower friction materials that can be placed on fins to discourage lateral bending and reduce frictional contact, with a design allowing coordinated upward movement of fins and planar disc sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate covers are placed on fins to reduce friction and prevent lateral bending, then climbing performance is improved, but device complexity increases
Solution Approach 1:
The fin structure is segmented by adding separate covers that can be placed on individual fins. These covers are removable and can be applied selectively to specific fins based on cleaning requirements, allowing the system to be divided into functional modules that can be independently configured and maintained.
Solution Approach 2:
The covers are applied locally to specific fins rather than uniformly to the entire disc. This allows different regions of the disc to have different friction characteristics - covered fins provide reduced friction for wall climbing, while uncovered fins maintain higher friction for gripping pool surfaces. The local application optimizes performance for specific operational conditions.
2Stability of the object's composition
If covers made from more rigid material are used on fins, then lateral bending is prevented, but manufacturing complexity increases
Solution Approach 1:
The fin system is segmented into the base fin structure and separate rigid covers. The covers can be manufactured independently using optimized processes for rigid materials, then assembled onto the fins. This segmentation allows each component to be manufactured using the most suitable process for its specific requirements.
Solution Approach 2:
The system uses composite construction by combining the original fin material with separate rigid cover materials. Each material can be selected for its optimal properties - the base fins use material suitable for flexibility and attachment, while the covers use rigid materials for structural stability. This composite approach allows each component to be manufactured using processes optimized for its specific material properties.
3Stability of the object's composition
If covers are designed to contact both fins and planar portions, then integrated movement is enhanced, but ease of operation decreases
Solution Approach 1:
The cover design allows for dynamic adaptation of the disc system. The covers can be positioned to contact both fins and planar portions, creating a coordinated movement system that adapts to different operational conditions. This dynamic configuration enables the disc to maintain stable contact with pool surfaces while allowing necessary flexibility for maneuvering.
Solution Approach 2:
The covers act as intermediary elements between the fins and the planar portions of the disc. By contacting both elements, the covers mediate their relative movements and ensure coordinated action. This intermediary function helps synchronize the movement of different disc components, improving overall system stability during operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The covers enhance the pool cleaner's ability to climb pool walls by reducing friction and preventing lateral bending, improving the cleaner's climbing performance and movement coordination.
Implementation Method 1
Versions of the covers are made from material (a) more rigid and (b) having lower coefficient of friction than the fins, hence both discouraging lateral bending of the fins and decreasing frictional contact with surfaces when certain obstacles or walls are encountered
Implementation Method 2
Frictional contact between the fin and interior of the cover may retain the cover in place, especially (although not exclusively) when the fin has non-uniform width
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Separate covers (10) for protruding portions of discs (14) of automatic swimming pool cleaners are addressed. The covers may be placed onto protrusions/ such as fins, and removed from the fins as needed. Version of th covers are made of material more rigid and having lower coefficient of friction than the fins to discourage lateral bending of the fins and decrease frictional contact of the fins with pool surfaces.