Filter Bag Mounting Collar With Hinged Tab for Stable Airflow
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Solution Overview
Problem
Existing filter bag attachment systems for vacuum cleaners face challenges in securely mounting the filter bag to the fill tube, leading to potential air resistance issues and instability during operation.
Innovation Solution
A filter bag mounting system featuring a mounting collar with a stiff cardboard panel defining an isosceles trapezoidal shape and securing tabs with living hinges, which securely attach to a mounting bracket with a tube structure and abutment plate, optimizing the angle of the fill tube to reduce air resistance and enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a filter bag uses a simple mounting collar without reinforcement, then the ease of manufacture is improved, but the reliability of attachment to the fill tube deteriorates
Solution Approach 1:
The mounting collar combines flexible material (for ease of installation) with a reinforcement panel made of stiff material (for secure attachment). This composite structure allows the collar to be easily manufactured and installed while maintaining reliable attachment to the fill tube during operation.
Solution Approach 2:
The mounting collar is divided into distinct functional segments: a flexible collar portion for easy installation and a separate reinforcement panel for secure attachment. This segmentation allows each part to be optimized for its specific function while maintaining overall simplicity in manufacture.
2Ease of manufacture
If the fill tube angle is not optimized, then the ease of manufacture is improved, but the air resistance increases
Solution Approach 1:
The fill tube is designed with a specific angular parameter (optimally between 45-60 degrees relative to the horizontal plane) that balances manufacturing simplicity with aerodynamic performance. This parameter optimization reduces air resistance in the dirt collection system while maintaining ease of manufacture.
3Ease of operation
If the mounting collar is made flexible for easy installation, then the ease of operation is improved, but the stability during operation deteriorates
Solution Approach 1:
The mounting collar uses a composite construction with a flexible base material for easy installation and a stiff reinforcement panel for operational stability. This combination allows the collar to be easily installed by hand while maintaining secure, stable attachment during vacuum cleaner operation.
Solution Approach 2:
The collar incorporates a curved or tapered geometry that allows flexible insertion while the reinforcement panel provides structural stability. The geometric design enables easy installation through deformation while maintaining rigid stability once mounted.
Data Source
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AI summary
A filter bag (32) includes a bag structure (110) of filter material. A panel (120) is adhered to the bag structure (110) and has a fill opening (150). A securing tab (140) is attached by a hinge (141) to the panel (120). The panel (120) is configured to have a mounted position in which a fill tube (42) projects through the fill opening (150) into the bag structure (110) to exhaust air into the bag structure (110). The panel (120) can be secured in the mounted position by the securing tab (140) being manually pivoted about the hinge (141) into attachment with a securing structure (90) coupled to the fill tube (42).