Sample Container Positioning via Gravitational Settling
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Solution Overview
Problem
Existing analysis systems with spring mechanisms require excessive force on the arm mechanism to position sample containers, leading to potential detachment and increased complexity and cost, while also limiting the size of containers that can be handled.
Innovation Solution
An analysis system with a gripper arm mechanism that uses a placement member with pin-like positioning portions and elastic members to precisely position sample containers without relying on spring mechanisms, allowing for accurate and cost-effective handling of various container sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spring mechanism is used to press the sample container against the positioning vertical wall, then the sample container can be fixed at the reference position, but the arm mechanism requires excessive force to interpose the sample container between the vertical wall and the spring mechanism
Solution Approach 1:
The patent removes the spring mechanism from the system entirely. Instead of using a spring mechanism to press the sample container against the positioning wall, the invention uses only the positioning vertical wall to define the reference position. The arm mechanism simply moves the sample container to contact the positioning wall without needing to overcome any spring force, thereby eliminating the excessive force requirement while maintaining positioning precision.
Solution Approach 2:
The positioning vertical wall serves a dual function: it defines the reference position and automatically positions the sample container through gravitational settling. When the arm mechanism places the sample container on the placement surface, gravity causes the container to naturally settle against the positioning wall, achieving accurate positioning without requiring the arm mechanism to apply force against a spring mechanism.
2Manufacturing precision
If a spring mechanism is used to position the sample container, then positioning can be achieved, but the system complexity and cost increase
Solution Approach 1:
The patent extracts and removes the spring mechanism from the positioning system. By eliminating this mechanical component, the system complexity and cost are reduced while the positioning function is maintained through the simplified approach of using only the positioning vertical wall and gravitational settling.
Solution Approach 2:
The system uses the natural gravitational force to achieve positioning automatically. The sample container settles against the positioning vertical wall under its own weight, eliminating the need for additional positioning mechanisms and reducing overall system complexity.
3Manufacturing precision
If a spring mechanism is used for positioning, then the reference position can be established, but the arm mechanism may detach the sample container due to excessive burden
Solution Approach 1:
By removing the spring mechanism, the source of excessive force that could cause detachment is eliminated. The arm mechanism only needs to gently place the sample container on the placement surface, allowing it to settle naturally against the positioning wall without experiencing the high forces that would risk detachment.
Solution Approach 2:
The gravitational settling process is passive and gentle, allowing the sample container to position itself against the vertical wall without requiring forceful manipulation by the arm mechanism. This self-positioning process maintains reliable contact between the container and the positioning wall.
Data Source
AI summary
The analysis system is provided with a placement member and an arm mechanism. The placement member has a positioning portion for defining a position of a sample container on a placement surface. The arm mechanism moves the sample container placed on the placement member to the positioning portion to thereby place the sample container at a reference position on the placement member.