Zipper Padlock Dual Locking System Assembly
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Solution Overview
Problem
The high cost of producing and assembling padlocks, particularly those with combination locking systems, due to the need for numerous small components, makes them expensive to manufacture and assemble effectively.
Innovation Solution
A dual locking system for zipper locks that integrates a combination locking mechanism and a key overriding mechanism, utilizing a control plate with protrusions and clutches, a disc tumbler cylinder, and a latch system to securely lock and unlock the zipper pulls of a suitcase, allowing for cost-effective production by simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a combination locking system with multiple components is used, then the lock provides secure locking functionality, but the production and assembly cost increases
Solution Approach 1:
The patent combines the combination locking mechanism and key overriding mechanism into a single integrated lock body. The control plate serves dual functions: it controls the latch for combination unlocking and provides the key override function. This merging of functions into fewer components directly reduces production and assembly costs while maintaining both security features
Solution Approach 2:
The control plate is designed as a multi-functional component that performs multiple roles: it engages with clutches to control latch movement for combination unlocking, and simultaneously provides the key override function by allowing the key mechanism to directly move the latch when needed. This universal component approach reduces the total number of parts required
2Adaptability or versatility
If numerous small components are incorporated to achieve desired features, then the lock functionality is enhanced, but the assembly complexity and cost increase
Solution Approach 1:
The patent merges the combination locking mechanism and key overriding mechanism into a single integrated lock body. The control plate serves dual functions: it controls the latch for combination unlocking and provides the key override function. This merging of functions into fewer components directly reduces production and assembly costs while maintaining both security features
Solution Approach 2:
The control plate is designed as a multi-functional component that performs multiple roles: it engages with clutches to control latch movement for combination unlocking, and simultaneously provides the key override function by allowing the key mechanism to directly move the latch when needed. This universal component approach reduces the total number of parts required
Data Source
AI summary
A zipper lock has a combination locking system defined by dials and clutches and a key overriding mechanism. The lock has a pole to receive zipper pullers and a movable cover plate to block the pole when the lock is in the locked mode. The lock has a control plate with release slots. The control plate can be shifted only if the dials are set to the correct combination or when a correct key is used to turn a tumbler cylinder. The cover plate is engaged with a latch having a latch finger. When the lock is in the locked mode, the latch finger is blocked by the control plate, restricting movement of the latch. When the lock is in the unlocked mode, the latch finger can be moved into a release slot, allowing the latch and cover plate to move in order to clear the pole.