Drink Capsule Retention and Release for Reliable Ejection
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Solution Overview
Problem
The existing capsule-based drink extraction systems often experience issues where the extraction surface sticks to the extraction plate, causing capsules to become immobile and requiring manual or mechanical intervention for removal, which can delay system usage.
Innovation Solution
The system incorporates hooking means within the first chamber portion to securely hold the capsule during closure and release mechanisms to allow the capsule to fall by gravity when the device opens, utilizing a capsule design with a bulging collar and deformable materials to ensure reliable ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the capsule is held in place by gravity alone after chamber portion retraction, then the system structure remains simple, but the capsule may stick to the extraction plate and fail to eject reliably
Solution Approach 1:
The patent introduces a dynamic ejection mechanism where the moveable chamber portion actively pushes the capsule during retraction rather than relying on passive gravity. The chamber portion moves from a closed position to an open position, dynamically changing the capsule's state from held to ejected, ensuring reliable ejection even when capsules are left in the device for prolonged periods.
Solution Approach 2:
The system uses the chamber portion's own movement during the normal opening operation to eject the capsule, rather than requiring a separate ejection mechanism. The chamber portion serves dual functions: containing the capsule during extraction and actively ejecting it during retraction, making the ejection process self-service and avoiding additional complexity.
2Ease of operation
If manual or mechanical intervention is used to remove stuck capsules, then capsule removal is possible, but system productivity decreases and operation complexity increases
Solution Approach 1:
The chamber portion automatically performs the ejection function during its normal retraction movement, eliminating the need for manual or separate mechanical intervention. The system serves itself by using the existing chamber motion to both contain and eject the capsule, ensuring ease of operation and maintaining productivity.
Solution Approach 2:
The moveable chamber portion extracts the capsule from the device by pushing it out during retraction. This active extraction mechanism ensures the capsule is reliably removed from the extraction position and ejected from the device housing, preventing sticking issues and enabling continuous operation.
3Reliability
If the capsule is left in the closed position for a prolonged period, then the extraction surface may harden and stick to the extraction plate, but the device structure remains simple without additional prevention mechanisms
Solution Approach 1:
The chamber portion dynamically changes position from closed to open, actively pushing the capsule during retraction. This dynamic motion prevents the extraction surface from adhering to the extraction plate even after prolonged closed periods, as the active pushing action overcomes any adhesion forces that may have developed.
Solution Approach 2:
The chamber portion performs a preliminary pushing action on the capsule during retraction before the capsule can become permanently stuck. By actively engaging the capsule early in the retraction process, the system prevents adhesion and hardening issues from taking effect, ensuring reliable ejection regardless of how long the device remained closed.
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
This solution ensures reliable capsule ejection without manual intervention, preventing blockages and ensuring smooth operation by maintaining the capsule in place during closure and facilitating easy release when the device is opened.
Implementation Method 1
when the device is reopened, at least one of the chamber portions retracts; the capsule then no longer being supported by the retaining means (lugs); this causes the capsule to fall simply by gravity
Implementation Method 2
the resoftening and the adhesion of the material of the surface of the capsule
Data Source
AI summary
System for preparing drinks from a capsule comprising: a capsule (1) including a body comprising an injection face and an extraction face with an opening and terminating in a collar (5) and a portion for delivery of the drink; the collar terminating in a free edge (8); a device for preparing drinks comprising: a first chamber portion (14) comprising a cavity of a shape suitable for substantially covering the body of the capsule and a clamping surface (23) which is engaged in compression against the collar, and a second chamber portion comprising an extraction plate, at least one of the two chamber portions being able to move relative to the other chamber portion from an open position in which the capsule is inserted to a closed position in which the capsule is enclosed between the two chamber portions, the first chamber portion (14) comprising means (32, 38) for hooking the capsule making it possible to keep the capsule in the said cavity of the said first portion during the transition from the closed position to the open position; the capsule comprising complementary means (8, 39) suitable for the takeover by these hooking means.