Lead Block Inclined Pin Holder for Rotary Connector Stability
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Solution Overview
Problem
Existing rotary connector devices face issues with wobble and misalignment of lead blocks relative to their attachment portions, leading to potential electrical connectivity problems and mechanical instability.
Innovation Solution
The design incorporates a lead block with a pin holder featuring inclined surfaces that contact the lead-block attachment portion, reducing wobble in multiple directions and ensuring stable positioning through specific orientation attachment, utilizing a combination of inclined surfaces and holding pawls for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lead block is attached to a lead-block attachment portion in a rotary connector device, then electrical connectivity is established, but wobble and misalignment occur leading to mechanical instability
Solution Approach 1:
The inclined surface is pre-formed on the pin holder at a specific angle (45 degrees in the embodiment) to guide the attachment process. This preliminary geometric feature ensures that when the lead block is attached, it automatically aligns correctly and prevents wobble, resolving the mechanical instability issue while maintaining electrical connectivity
Solution Approach 2:
The inclined surface creates an asymmetric attachment interface between the pin holder and lead block. This asymmetric design with the specific angle prevents symmetric wobble movements and ensures stable positioning, eliminating the misalignment problem that would occur with a symmetric or flat attachment surface
2Stability of the object's composition
If the lead block is securely attached to prevent wobble, then mechanical stability is improved, but the attachment process becomes more complex
Solution Approach 1:
Instead of making the entire attachment structure complex, the solution applies a localized inclined surface at a specific angle (45 degrees) on the pin holder. This local geometric modification is sufficient to prevent wobble and ensure stability without requiring complex attachment mechanisms throughout the entire device
Solution Approach 2:
The inclined angle of the surface is changed to a specific parameter value (45 degrees) to optimize the attachment stability. This parameter change creates the necessary mechanical interlock to prevent wobble while keeping the overall structure simple and easy to manufacture
Data Source
AI summary
A lead block for a rotary connector device includes a plurality of connection pins and a pin holder. The plurality of connection pins is arranged at intervals in an arrangement direction. The pin holder holds the plurality of connection pins. The plurality of connection pins protrudes from the pin holder in a protruding direction perpendicular to the arrangement direction. The pin holder includes an inclined surface inclined relative to the protruding direction.