Frozen Drink Maker Lever Coupling for Effortless Vessel Installation
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Solution Overview
Problem
Existing frozen drink makers require significant user effort to install and uninstall the mixing vessel, often straining the plastic and necessitating a large radial seal that is difficult to manage.
Innovation Solution
A lever mechanism with a flexible seal is introduced, allowing the mixing vessel to be easily coupled and uncoupled with minimal force, using a one-handed operation, and featuring a cam feature for secure attachment and ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large radial seal is used to secure the mixing vessel, then the sealing reliability is improved, but the ease of operation deteriorates due to significant user effort required for installation and uninstallation
Solution Approach 1:
The sealing system is segmented into multiple smaller seals distributed around the circumference of the mixing vessel, replacing a single large radial seal. This segmentation reduces the force concentration and allows easier installation and removal while maintaining sealing reliability through the distributed seal arrangement
Solution Approach 2:
The coupling mechanism is inverted by using a lever that moves from an unlocked to a locked position, rather than requiring the user to directly apply force to secure the vessel. The lever mechanism automatically engages the seals and secures the vessel through mechanical advantage, reducing user effort while maintaining secure attachment
2Reliability
If a secure coupling mechanism is used to firmly attach the mixing vessel, then the reliability of attachment is improved, but the ease of operation deteriorates due to difficulty in removal
Solution Approach 1:
The coupling mechanism transitions from a static secure attachment to a dynamic system controlled by lever movement. The lever can be easily moved between locked and unlocked positions, allowing the attachment reliability to be high when locked while enabling easy removal when unlocked, adapting the coupling strength based on operational needs
Solution Approach 2:
The lever acts as an intermediary between the user and the mixing vessel coupling. It provides mechanical advantage and control, allowing the user to easily engage and disengage the secure attachment mechanism without directly applying significant force to the vessel itself, thus maintaining both secure attachment and ease of removal
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 effortless and secure installation and removal of the mixing vessel, reducing user strain and improving the user experience.
Implementation Method 1
a flexible seal positioned between the upper housing section and the mixing vessel... When the lever is in the coupled position, the mixing vessel is sealed against the upper housing section by the flexible seal
Implementation Method 2
The lever can include a cam feature, which provides significant compression... allowing a user to easily and securely couple the mixing vessel onto an upper housing of the frozen drink maker with just one hand
Data Source
AI summary
A frozen drink maker is described that includes a housing, a mixing vessel to mix a drink product, and a flexible seal. The housing includes an upper housing section and a lever moveable relative to the upper housing section between a coupled position and an uncoupled position. The flexible seal is between the upper housing section and the mixing vessel. The lever couples the mixing vessel to the upper housing section when in the coupled position and uncouples the mixing vessel from the upper housing section when in the uncoupled position. When the lever is in the coupled position, the mixing vessel is sealed against the upper housing section by the flexible seal.