Movable Bag Clamping Structure for Garbage Bin
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Solution Overview
Problem
Existing bag clamping devices struggle to balance easy bag opening with sufficient tension, often resulting in bag tearing with smaller openings or insufficient tension with larger openings, and fail to adapt to varying bag sizes and manufacturing tolerances.
Innovation Solution
A clamping device with movable holding structure parts that can be positioned for easy bag insertion and tensioning, featuring a spring element for defined positioning, allowing independent movement and adaptation to different bag openings, and capable of being arranged in container corners or central regions for versatile use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the bag opening is smaller, then good tension can be achieved, but it is difficult to put the bag over the tongues and there is a risk that the bag will tear
Solution Approach 1:
The holding structure part is made movable relative to the mounting part, allowing it to be positioned in a first position for easy bag insertion and a second position for sufficient tensioning. This dynamic positioning resolves the contradiction by separating the insertion and tensioning functions in time and space.
2Ease of operation
If the bag opening is slightly larger, then the bag can be easily clamped, but the bag is only insufficiently tensioned, so that the bag is not held sufficiently in the clamping device
Solution Approach 1:
The movable holding structure part allows the system to adapt its configuration based on the bag size. After insertion, the holding structure part can be moved to the second position to provide sufficient tension regardless of the initial bag opening size, resolving the contradiction between ease of insertion and adequate tensioning.
3Force
If clamping means are arranged at the upper edge area, then bag tensioning is achieved, but the clamping device is disruptive for inserting or removing the garbage bag
Solution Approach 1:
The holding part is arranged on the container corner rather than the upper edge area, utilizing the corner space that would otherwise be unused. This spatial repositioning eliminates the disruption to bag insertion/removal while still achieving effective bag tensioning through the corner-mounted holding structure.
4Device complexity
If the holding structure part is fixed relative to the container, then the structure is simple, but it cannot adapt to different bag sizes and manufacturing tolerances
Solution Approach 1:
The holding structure part is made movable relative to the mounting part, enabling adaptation to different bag sizes and manufacturing tolerances. The spring element provides the necessary force while allowing positional adjustment, achieving adaptability without excessive structural complexity.
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
Enables easy bag mounting and removal, maintains sufficient tension during filling, and accommodates various bag sizes and manufacturing tolerances, ensuring secure bag holding while minimizing space usage in the container.
Implementation Method 1
The holding part has a spring element for positioning the holding structure part relative to the mounting part
Data Source
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AI summary
This concerns a device for holding a bag, in particular a garbage bag, comprising a container (5) at the upper edge (2) of which a clamping device for holding at least one bag is arranged. The clamping device has at least one holding element (3) which is arranged at a corner of the container.