Sinker Assembly Elastic Body Pin Coupling
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Solution Overview
Problem
Existing sinker assemblies face challenges in quickly and easily changing the weight of the sinker in outdoor environments, with previous solutions like screw-fastening and one-touch coupling methods experiencing issues such as difficulty in coupling and potential misalignment.
Innovation Solution
A sinker assembly with a coupling structure that stably connects a cap section and a holder section through minimal rotation using a single pin structure, featuring a receptacle part with an elastic body and pin portion, and a fastening part with cutouts to facilitate easy assembly and disassembly without screw-coupling, allowing intuitive introduction and secure fixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw-fastening coupling is used to connect cap section and holder section, then connection stability is improved, but weight change speed deteriorates due to multiple turning operations required
Solution Approach 1:
The coupling structure is divided into a cap section and a holder section with distinct coupling features (recesses and protrusions), allowing independent manipulation of each section for quick weight changes while maintaining stable connection when coupled
Solution Approach 2:
The traditional screw-thread mechanical coupling system is replaced with a pin-based one-touch coupling system where a coupling pin engages with recesses and protrusions, eliminating the need for rotational screwing operations while maintaining connection stability
2Productivity
If one-touch coupling method is used with locking wing part and vertical cutout, then weight change speed is improved, but coupling difficulty worsens due to misalignment and catching issues
Solution Approach 1:
The coupling features use asymmetric recesses and protrusions that guide the coupling pin into the correct position, preventing misalignment and making the coupling operation intuitive and error-proof
Solution Approach 2:
The coupling pin acts as an intermediary element that mediates the connection between cap and holder sections, providing a clear mechanical path for coupling and reducing operational difficulty
3Ease of operation
If wider hole configuration with vertical cutout is used in connection socket, then one-touch coupling is enabled, but structural complexity worsens due to additional cutout requirements
Solution Approach 1:
The coupling recesses and protrusions are integrated directly into the cap and holder section structures themselves, merging the coupling function with the structural design and eliminating the need for separate coupling mechanisms or additional cutouts
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
Enables stable coupling of the cap and holder sections with minimal rotation, easy assembly and disassembly, and quick weight adjustments, improving usability in complex outdoor environments.
Implementation Method 1
an elastic body located inside the receptacle part to transmit a force in a direction toward an inlet side of the insertion hole
Data Source
AI summary
Proposed is a sinker assembly that includes a holder section and a cap section, wherein the cap section includes a receptacle part coupling the holder section to the cap section, the receptacle part has an insertion hole, an elastic body located inside the receptacle part, and a pin portion protruding from an inner wall of the receptacle part to fix the elastic body, the holder section includes a fastening part, the fastening part has a first cutout cut in the longitudinal direction so that the pin portion is moved along the first cutout, a second cutout cut along the circumference so that the pin portion is moved along the second cutout, and a third cutout cut so that the pin portion is fixed thereto.