Head Plate Engaging Elements Prevent Rotational Slippage
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Solution Overview
Problem
Existing dispensing apparatuses for flowable components face reliability issues due to the risk of unintended rotational motion between cartridges and mixers, leading to slippage and decoupling during the dispensing process, which compromises the reliability of the mixing and dispensing process.
Innovation Solution
The cartridge arrangement incorporates engaging elements on the periphery of the inlet and outlet passages, preventing rotational motion and ensuring a torque-proof cooperation, while allowing axial movement, thereby enhancing the secure attachment and separation of storage containers from the head plate, reducing the risk of decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cartridges or storage containers are coupled to the head plate device with circular geometry, then the coupling is simple and easy to manufacture, but rotational motion occurs during operation leading to slippage and decoupling
Solution Approach 1:
The patent introduces asymmetric engaging elements (protrusions and recesses) on the circular periphery of the inlet/outlet passages. These asymmetric features break the rotational symmetry of the circular coupling interface, creating a unique orientation that prevents unintended rotation while maintaining the overall circular geometry for ease of manufacture and assembly.
2Reliability
If engaging elements are added to prevent rotational motion, then connection reliability is improved, but device complexity increases
Solution Approach 1:
The engaging elements are segmented into discrete protrusions and recesses distributed around the periphery of the inlet/outlet passages. This segmentation allows the anti-rotation function to be achieved through multiple small features rather than a single complex mechanism, reducing overall device complexity while maintaining reliability.
3Quantity of substance
If the cartridges are designed with thin walls to collapse during dispensing, then material usage is optimized, but secure engagement against rotation is compromised
Solution Approach 1:
The patent merges the structural functions of the cartridge wall and the engaging elements. The engaging elements (protrusions and recesses) are integrated directly into the wall structure of the inlet/outlet passages, allowing thin-walled cartridges to maintain both material efficiency and rotational engagement security through a unified design.
Data Source
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AI summary
The present invention suggests a head plate device (45) for a cartridge arrangement (100) for a dispensing apparatus (1) for dispensing at least two flowable components (11, 12). The head plate device (45) comprises at least two separate outlet openings (98, 99) for respectively dispensing the at least two flowable components (11, 12) and at least two separate inlet passages (50, 60) of the head plate device (45) through which the at least two flowable components (11, 12) can be introduced and flowed through separately from one another. Each of said inlet passages (50, 60) of the head plate device (45) is designed for cooperation with one respective outlet passage (70, 80) of a storage container device (91, 92). At least one of the inlet passages (50, 60) of the head plate device (45) comprises an inlet opening region (51, 61) of essentially circularly shaped cross-section with at least one of an inner periphery (53, 63) and an outer periphery (54, 64). At least one of the inner periphery (53, 63) and the outer periphery (54, 64) comprises at least one engaging element (56, 66, 96). The at least one engaging element (56, 66, 96) extends radially from the respective inner periphery (53, 63) or outer periphery (54, 64). Further, the present invention is directed to a corresponding storage container device (90), a cartridge arrangement, and a dispensing apparatus (1) combining an inventive head plate device (45) and an inventive storage container device (90) with a mixer device (10).