Vacuum Sweeper Filter Bag Keying for Compatible Replacement
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Solution Overview
Problem
The use of filter bags that do not meet manufacturer specifications can reduce the performance and safety of vacuum sweepers, posing a risk during operation and replacement.
Innovation Solution
A filter bag with a top plate featuring a key and a sled with a lock mechanism that ensures proper attachment to the vacuum sweeper, preventing the installation of non-standard filter bags by interlocking only with authorized components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If filter bags are made freely available for replacement, then ease of operation is improved, but reliability deteriorates due to use of substandard bags
Solution Approach 1:
The filter bag features an asymmetric key structure with specific geometric characteristics that must match the corresponding lock in the vacuum sweeper. This asymmetric design ensures that only filter bags meeting manufacturer specifications can be installed, while still allowing easy replacement of compliant bags by users.
Solution Approach 2:
The key-lock mechanism serves as an intermediary between the filter bag and the vacuum sweeper system. This intermediate component verifies the authenticity and compliance of the filter bag before allowing installation, thereby maintaining reliability while preserving ease of operation for authorized bags.
2Reliability
If a key-lock mechanism is added to ensure proper filter bag installation, then reliability is improved, but device complexity increases
Solution Approach 1:
The key-lock mechanism is segmented into two distinct components: a key attached to the filter bag and a lock integrated into the vacuum sweeper. This segmentation allows the complexity to be distributed and minimized in each component while achieving the overall goal of ensuring proper filter bag installation and maintaining system reliability.
Data Source
AI summary
A filter bag and an apparatus for attaching a filter bag to a vacuum sweeper are provided. The filter bag includes a top plate and a bag portion. The top plate has a key formed thereon. The apparatus includes a sled configured to receive a portion of a filter bag having a key formed thereon. The apparatus also includes a sweeper housing. The sweeper housing is adjacent the sled. The housing has a cavity for receiving a portion of the filter bag and a lock that interconnects with the key. A method for installing the filter bag in a vacuum sweeper is also provided.