Chain Block Lock Widening for Higher Traction Force
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Solution Overview
Problem
Chain block locks in existing technologies are a weak point in force transmission and require structural enhancement for improved traction force without increasing the chain's structural height or necessitating modifications to existing chain drives.
Innovation Solution
A chain block lock design featuring elongated tabs with lateral widenings on one half, extending over 80-90% of its length, providing increased traction force transmission while maintaining the same structural height and allowing integration into existing sprocket systems without modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the chain block lock structure is enhanced to increase traction force transmission, then the force transmission capability is improved, but the structural height increases
Solution Approach 1:
The patent applies dimensionality change by transitioning from vertical height enhancement to lateral width enhancement. The block lock half features a widening at its upper edge that extends laterally beyond the respective side, increasing the cross-sectional area and moment of inertia in the horizontal plane rather than increasing height vertically. This allows the chain block lock to achieve greater traction force transmission capability while maintaining the same structural height constraint.
2Strength
If the chain block lock width is increased to improve force transmission, then the traction force capability is enhanced, but the compatibility with existing sprocket systems is compromised
Solution Approach 1:
The patent applies local quality by implementing the widening only at the upper edge region of the block lock half, rather than uniformly increasing the width throughout the entire structure. The widening extends over at least 80% of the block lock half length but is concentrated where it provides maximum structural benefit for force transmission. This localized enhancement maintains compatibility with existing sprocket systems in the critical engagement areas while improving overall traction force capability.
3Strength
If the block lock half is widened to reinforce the cross section, then the force transmission is improved, but the lateral dimensions exceed standard chain strand tolerances
Solution Approach 1:
The patent applies partial action by implementing a widening that extends over at least 80% but preferably 90% or more of the block lock half length, rather than the entire length. This partial extension provides sufficient cross-sectional reinforcement in the critical force transmission zones while limiting the overall lateral dimension increase. The widening protrudes laterally beyond the respective side only in the upper edge region, maintaining compatibility with standard chain strand tolerances.
Data Source
AI summary
A chain block lock for connecting two chain ends, wherein the block lock has two elongated block lock halves, which extend with their respective longitudinal direction in the chain length direction and when plugged one into the other have a receptacle space for receiving the chain ends, wherein one block lock half has a widening at an upper edge on both sides, which extends over at least 80%, or 90% of the length of the block lock half.