Roberval Scale Sensor Structural Body with Handle Body Penetration
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Solution Overview
Problem
Existing structural bodies with Roberval mechanisms are limited in achieving a balance between minimal space requirements and maximum sensitivity, as they are typically designed as monoblocks with limited flexibility in component arrangement.
Innovation Solution
The structural body is further developed by incorporating areas with the topology of a handle body, allowing for penetration holes that enable multiple functional parts to share installation space, thereby optimizing the flow of power and reducing material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If structural bodies are designed as compact monoblocks to minimize installation space, then the installation space is reduced, but the flexibility in component arrangement and sensitivity are limited
Solution Approach 1:
The patent implements nesting by allowing functional parts to penetrate through handle body regions of other parts. Specifically, the load receiver penetrates through a handle body region of the fixed leg, and the lever penetrates through handle body regions of both the fixed leg and movable leg. This nested arrangement enables multiple components to occupy overlapping spatial regions, achieving compact integration while maintaining design flexibility and sensitivity.
2Adaptability or versatility
If material is removed by transverse perforation to create Roberval mechanism structure, then the structural flexibility is improved, but the material strength is weakened
Solution Approach 1:
The patent applies local quality by creating handle body regions with specific topological characteristics in strategic locations. These handle body regions with their characteristic topology provide localized structural flexibility where needed for component penetration, while the rest of the monoblock structure maintains its strength. The handle body regions act as specialized zones that balance flexibility requirements with overall structural integrity.
3Area of stationary object
If handle body regions with penetration holes are created to enable multiple parts to share space, then the compactness is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent merges multiple functional parts into a single integrated monoblock structure where load receiver, lever, fixed leg, and movable leg are all formed as one piece. The handle body regions with penetration holes are integrated directly into the monoblock during manufacturing, eliminating the need for separate assembly operations. This merging approach achieves compactness while managing manufacturing complexity through integrated production.
Data Source
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AI summary
The invention relates to a structural body of a weighing sensor with a Roberval mechanism, comprising a first part with the fixed arm of the Roberval mechanism, a second part with the movable arm of the Roberval mechanism, a third part with the upper link of the Roberval mechanism, a fourth part with the lower link of the Roberval mechanism, a fifth part with a lever arrangement connecting the movable arm to an output side serving for sensor measurement, and a sixth part with a coupling connecting the movable arm to the lever arrangement, wherein at least one of the first to fifth parts has a region of the topology of a handle body of at least one type, the at least one hole of which is penetrated by at least one section of another of the first to sixth parts integrally connected with this region.