Rotary Hanging Fitting Structure to Prevent Link Cargo Collision
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Solution Overview
Problem
Existing hanging fittings face issues where the link collides with cargo due to vibration, leading to damage, and previous solutions either restrict link movement or increase the number of parts and manufacturing costs.
Innovation Solution
A hanging fitting design featuring a rotary coupling member with an anchor fitting, slope parts, and a concave curved link receiving part that prevents link collision without restricting movement, reducing the number of parts and manufacturing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping mechanism is used to prevent link collision, then collision prevention is improved, but device complexity and number of parts increase
Solution Approach 1:
The link receiving part is integrated into the rotary coupling member as a unified structure, eliminating the need for separate clamping mechanisms. The rotary coupling member combines the functions of rotation, link reception, and collision prevention into a single component, reducing overall device complexity while maintaining collision prevention capability.
Solution Approach 2:
The link receiving part is extracted as a distinct functional element within the rotary coupling member, allowing it to specifically handle link collision prevention without requiring a complete clamping mechanism. This extraction enables collision prevention through a simplified structural feature rather than a complex mechanical system.
2Reliability
If a receiving fitting is mounted on the rotary fitting, then collision prevention is improved, but number of parts and manufacturing time increase
Solution Approach 1:
The link receiving part is merged with the rotary coupling member to form a single integrated component. This eliminates the need for separate receiving fittings that would require additional mounting operations, thereby reducing manufacturing time and improving productivity while maintaining the collision prevention function.
3Reliability
If the link coupling hole size is reduced, then collision prevention is improved, but link movement freedom deteriorates
Solution Approach 1:
The link receiving part provides localized collision prevention at specific positions where the link may contact the cargo, while the coupling hole maintains sufficient size for free link movement. This local quality approach allows the coupling hole to remain large for movement freedom while the receiving part intervenes only when collision risk arises.
Data Source
AI summary
A hanging fitting including a link and a rotary fitting, the rotary fitting including an anchor fitting, and a rotary coupling member mounted on the anchor fitting in a state of being rotatable, the rotary coupling member beings provided with a main body part, the main body part being integrally formed with: a base part; a pair of raised parts; and a beam part which surrounds, together with the pair of raised parts, a coupling hole to which the link is pivotally coupled, the pair of raised parts being provided with link receiving parts each provided at a position further away from the anchor fitting in an axial direction of a rotation axis than the base part and provided at a position where the link comes into contact therewith in a state where a tip of the link has a predetermined gap with respect to a cargo.