Bag Lock Assembly Rotation-Force Transfer Mechanism
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Solution Overview
Problem
Conventional bag lock assemblies are inconvenient due to limited rotation direction of rotation members, precise alignment issues, and complex assembly processes with many small parts, leading to difficulty in locking or unlocking the bag securely.
Innovation Solution
A lock assembly with a body-side sub-assembly and flap-side sub-assembly featuring a rotation-force transfer mechanism with fewer, larger parts, including rotation-member couplers and a belt, allowing rotation in any direction, and using convex portions and recesses for precise alignment and secure engagement, reducing assembly complexity and improving user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional rotation-force transfer mechanism with multiple small parts is used, then the locking mechanism can function, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple small parts (linkers, balls, and springs) into a single integrated rotation-force transfer mechanism. This merging reduces the total number of components that need to be assembled while maintaining the functional capability of transferring rotation force between rotation members, directly resolving the contradiction between ease of manufacture and device complexity.
2Ease of operation
If rotation members are constrained to a specific rotation direction, then the mechanism structure can be simplified, but user convenience is reduced
Solution Approach 1:
The patent implements a dynamic rotation-force transfer mechanism that can accommodate rotation in multiple directions. The integrated mechanism design allows rotation members to rotate freely in any direction while still effectively transferring the rotation force, thereby improving user convenience without significantly increasing mechanism complexity.
3Manufacturing precision
If precise alignment features are added to rotation members, then alignment accuracy improves, but the number of parts and assembly complexity increases
Solution Approach 1:
The patent integrates precise alignment features directly into the rotation members themselves rather than adding separate alignment components. The rotation members are designed with built-in features that ensure accurate alignment during assembly, achieving high manufacturing precision while avoiding an increase in the total number of parts.
Data Source
AI summary
The present disclosure provides a lock assembly for a bag, wherein the bag has a bag body and a bag flap, the assembly comprising: a body-side sub-assembly secured to the bag body; and a flap-side sub-assembly secured to the bag flap, wherein the body-side sub-assembly comprises: a base member having a rear portion secured to the bag body, a pair of rotation members, each rotation member including an upper grip and a lower shaft extending from the upper grip, a rotation-force transfer mechanism configured to transfer a rotation force between the pair of rotation members, wherein the rotation-force transfer mechanism employs a belt.