Hand-Held Suction System Bag Positioning to Reduce User Obstruction
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Solution Overview
Problem
Existing hand-held suction systems are not user-friendly due to obstructive design and limited bag volume, which hinders ease of use and portability.
Innovation Solution
A hand-held suction system with a tube unit and bag unit connected via a single mechanical connection, where the bag unit extends downwards along the suction tube's upper circumference, allowing for increased bag volume and reduced user obstruction, and featuring a loop hanger arrangement for easy handling and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tube connecting part is arranged at the lowermost point of the circumference, then the bag unit extends away downwards from the suction tube, but this causes the collecting bag to be in the way of the user and limits user ergonomics
Solution Approach 1:
The patent inverts the conventional arrangement by positioning the tube connecting part at the uppermost point of the circumference instead of the lowermost point. This inversion causes the collecting bag to extend downwards along the front surface of the suction tube, moving it away from the user's hand and improving ergonomics while reducing obstruction during operation
2Volume of stationary object
If the tube connecting part is arranged at the lowermost point of the circumference, then the bag unit extends away downwards, but this configuration limits the volume of the collecting bag
Solution Approach 1:
By inverting the connection point location from the lowermost to the uppermost point of the circumference, the patent enables the collecting bag to extend along the front surface of the suction tube. This configuration increase the usable volume of the collecting bag while positioning it away from the user's hand to maintain ease of operation
3Device complexity
If a single mechanical connection is used between tube unit and bag unit, then the structure is simplified, but the connection must be both mechanical and direct to hold the bag unit
Solution Approach 1:
The patent merges the tube connecting part and bag connecting part into a single integrated mechanical connection structure. This single connection point simultaneously provides both the mechanical attachment function and the structural support needed to hold the bag unit, simplifying the overall structure while maintaining reliability through the direct connection
Data Source
AI summary
A hand-held suction system includes: a hand-held suction device, a tube unit and a bag unit, wherein the tube unit has a suction tube and a tube connecting part, and wherein the bag unit has a collecting bag and a bag connecting part. The tube connecting part and the bag connecting part are designed to form a mechanical connection to one another in order to hold the bag unit by way of the tube unit. The tube connecting part is arranged in such a way on a circumference of the suction tube, in an upper half of the circumference in a circumferential direction, in a correct operating position of the suction system, and the suction system is designed in such a way that the bag unit held by the tube unit extends downwards in the circumferential direction along the suction tube, on the upper half of the circumference.