Security Lock Segmented Pin Coding Mechanism
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Solution Overview
Problem
Existing key-operable security locks lack a high degree of security and reliable operation while maintaining a simple structure suitable for mass production.
Innovation Solution
The security lock incorporates sliding and rotating pins on the rotor body and a stator body, along with a mobile blocking member, to prevent rotation unless an authorized key is inserted, utilizing a combination of pin configurations and a protective body to enhance locking strength and resistance to tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional coding means are used in security locks, then the structure remains simple, but the degree of security and reliability of operation is insufficient
Solution Approach 1:
The coding means is segmented into multiple independent pin elements (first pins, second pins, third pins) that can move independently. Each pin type performs a specific function: first pins detect key features, second pins rotate to engage blocking members, and third pins provide additional security layers. This segmentation allows the system to achieve high security through multiple independent security checks while maintaining a relatively simple overall structure that can be mass-produced.
Solution Approach 2:
The patent implements a nested arrangement where multiple pin elements are housed within the rotor body and stator body structures. The first pins, second pins, and third pins are nested within respective cavities and channels in the rotor and stator bodies. This nesting allows multiple security mechanisms to be compactly integrated without significantly increasing the external dimensions or overall structural complexity of the lock.
2Strength
If multiple pin elements are added to enhance security, then the locking strength increases, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Each pin element is designed with specific local qualities tailored to its function: first pins have elongated bodies for detecting key features, second pins have rotating capabilities with blocking members, and third pins have specific engagement surfaces. The rotor and stator bodies have locally optimized features such as pin cavities, engagement surfaces, and channels that accommodate each pin type. This local quality approach allows each component to be manufactured using standard processes while achieving high overall locking strength through the coordinated interaction of specialized elements.
Data Source
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AI summary
Described herein is a key-operable lock, of the type comprising: - a stator body (2); - a rotor body (4) rotatably mounted within said stator body and provided with a passage (6) for insertion of a key for operating the lock; and - coding means for preventing rotation of said rotor body (4) with respect to said stator body (2) and for enabling, instead, said rotation when an authorised key is inserted in said passage (6). The lock is characterized in that the coding means of the lock comprise two main types of pins carried by the rotor body (4), which operate according to different modalities for defining the condition of blocking of the lock, and in that the pins in question are positioned on different points of the rotor body (4) about its ideal axis of rotation.