Infusion unit with knee pad
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Solution Overview
Problem
Existing brewing units with toggle mechanisms face challenges in maintaining airtightness due to manufacturing tolerances, requiring high operational forces and complex maintenance, and are costly to manufacture and maintain.
Innovation Solution
An infusion unit with a toggle mechanism that includes a support frame, an infusion chamber with adjustable chamber sections, and an actuator, featuring an adjustment device to set the distance between chamber portions for airtight sealing, and a sealing compensation system with elastic elements to maintain airtightness despite wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a toggle mechanism is used to close the brewing chamber, then the device complexity is reduced and manufacturing costs are lowered, but the airtightness cannot be maintained after repeated use due to manufacturing tolerances
Solution Approach 1:
The patent introduces an adjustable distance mechanism that allows the static brewing chamber to be dynamically adjusted. The distance between chamber portions can be modified to compensate for wear and manufacturing tolerances in the toggle mechanism, maintaining airtightness without increasing the complexity of the actuator mechanism itself.
Solution Approach 2:
The patent changes the parameter of distance between chamber portions from a fixed value to an adjustable value. This allows the system to adapt to variations in toggle mechanism performance and wear over time, ensuring consistent airtightness while keeping the toggle mechanism simple.
2Reliability
If manufacturing tolerances are tightly controlled to ensure airtightness, then the airtightness is improved, but the manufacturing cost increases
Solution Approach 1:
Instead of relying on tight manufacturing tolerances, the patent provides a dynamic adjustment capability that allows the distance between chamber portions to be optimized after assembly. This shifts the quality assurance from the manufacturing process to a post-assembly adjustment process, reducing manufacturing costs.
Solution Approach 2:
The patent incorporates an adjustment mechanism that enables preliminary adjustment of the chamber distance before final assembly or during initial operation. This preliminary action compensates for manufacturing variations without requiring expensive tight tolerances during the manufacturing process.
3Manufacturing precision
If the distance between chamber portions is fixed, then the manufacturing precision is improved, but the operational force required varies considerably and the unit is difficult to operate
Solution Approach 1:
The patent transforms the fixed distance into an adjustable parameter, allowing the operational characteristics of the toggle mechanism to be optimized. By adjusting the distance between chamber portions, the mechanical advantage of the toggle mechanism can be optimized to reduce the force required for operation.
Solution Approach 2:
The patent changes the distance parameter from fixed to variable, enabling optimization of the operational force characteristics. This allows the system to be tuned for ease of operation while maintaining manufacturing precision through the adjustment mechanism rather than through tight manufacturing tolerances.
4Reliability
If a cylinder with hydraulic circuit is used, then the airtightness and pressure resistance are improved, but the device complexity increases and maintenance costs rise
Solution Approach 1:
The patent introduces a simple adjustable distance mechanism that allows the brewing chamber to be dynamically optimized for airtightness and pressure resistance. This dynamic adjustment capability replaces the need for complex hydraulic circuits while maintaining the necessary sealing performance.
Solution Approach 2:
The patent extracts the essential function of airtightness and pressure resistance from the complex hydraulic cylinder system and achieves it through a simpler mechanical adjustment of chamber distance combined with the toggle mechanism, eliminating the need for dedicated hydraulic circuits.
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
Ensures airtight sealing with reduced user operational force, improves reliability and safety, reduces manufacturing and maintenance costs, and extends the lifespan of the brewing unit by compensating for manufacturing tolerances and wear.
Implementation Method 1
The group may further include a sealing compensation system configured to exert a compressive force on the first portion and/or the second portion of chamber, tending to mutually tighten the first portion and the second portion into the closed configuration of the brewing chamber
Data Source
Figure 1
Figure 2~3
Figure 4A~4B
AI summary
The invention relates to an infusion group 1, the group 1 comprising a support frame 10; an infusion chamber 11 defined by at least a first portion 110 and a second portion 111 of the chamber, the second portion 111 of the chamber being movable relative to the frame 10 by a principal translational movement, so as to move away from or towards the first portion 110 in order to bring the infusion chamber 11 into an respectively open or closed configuration; a toggle mechanism 120 arranged to control at least part of the movement of the second portion 111. The group 1 includes an adjustment device 13 disposed on the frame 10, and configured to adjust the distance between the first portion 110 and second portion 111 of the chamber when the infusion chamber 11 is in the closed configuration.