Personal blender
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Solution Overview
Problem
Conventional blenders are not designed for personal or small servings, lacking a secure and efficient mechanism for attaching and detaching the blending vessel from the motorized base, which can lead to safety concerns and inefficient operation.
Innovation Solution
A personal blender assembly with a hub and vessel featuring a two-stage release mechanism using offset thread portions for sealed and coupled engagements, along with retractable safety lockout fingers for secure motor activation, allowing easy attachment and detachment with minimal rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional single-thread coupling mechanism is used to attach the blending vessel to the hub, then the attachment is simple and quick, but the sealing reliability is insufficient and the vessel may detach accidentally during operation
Solution Approach 1:
The coupling mechanism is segmented into two distinct functional stages: a sealed engagement stage with threading for secure attachment and sealing, and a coupled engagement stage for quick release. This segmentation allows each stage to optimize its specific function while together providing both reliability and ease of operation.
Solution Approach 2:
The coupling mechanism transitions dynamically between two states: sealed engagement (with threads engaged for secure attachment) and coupled engagement (with threads disengaged for quick release). This dynamic capability allows the system to adapt between secure operation and easy detachment based on operational needs.
2Ease of operation
If a secure sealed engagement mechanism is implemented to prevent accidental detachment, then the safety is improved, but the ease of detachment for personal use is reduced
Solution Approach 1:
The detachment process is segmented into two stages: first breaking the sealed engagement (threaded connection) while maintaining coupled engagement (mechanical interlocking), then releasing the coupled engagement. This allows controlled detachment where the user can choose to maintain partial attachment for security or fully detach for removal.
Solution Approach 2:
The mechanism dynamically transitions between sealed and coupled engagement states during detachment, allowing the vessel to remain partially attached (coupled only) as an intermediate state between full attachment and full detachment, providing flexibility in operation.
3Productivity
If the threading mechanism requires a full turn for engagement and disengagement, then the sealing is reliable, but the operation time is increased which reduces efficiency for personal servings
Solution Approach 1:
The threading mechanism is segmented into outer thread portions for quick engagement/disengagement and inner thread portions for sealing. The outer threads can be engaged or disengaged with minimal rotation for speed, while the inner threads provide reliable sealing when engaged, allowing the user to optimize between speed and sealing based on needs.
Solution Approach 2:
The mechanism allows partial engagement of threads (outer portions only) for quick coupling without requiring full rotation, while still providing sufficient sealing through the sealed engagement portion when needed. This partial action approach reduces operational time while maintaining adequate sealing reliability.
Data Source
AI summary
A blender assembly including a blender vessel and a blender hub. The blender hub having a plurality of first guide elements. The blender vessel having a rim, the blender vessel further having a plurality of second guide elements that each cooperate with a respective one of the first guide elements for forming a coupled and a sealed engagement to the blender hub. By releasing the coupling, the first and second guide elements cooperate to provide a two-stage release. A first stage of the release breaking the sealed engagement, and maintaining a loose coupled engagement, between the blender hub and the bender vessel. A second stage of the release, subsequent to the first stage of the release, releasing the coupled engagement between the blender hub and the blender vessel.