Safety Lock with Telescopic Recoding Element
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Solution Overview
Problem
Existing safety locks lack flexibility in recoding, requiring complex tools and manual substitution of parts, limiting their usability and efficiency, especially in construction settings where temporary keys pose risks of fraudulent use.
Innovation Solution
A safety lock with an automatic recoding mechanism that allows multiple code changes using a single key, enabling quick and simple recoding without part substitution, and allowing for the reuse of previously disabled keys through a telescopic recoding element and control means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual substitution of retainer plates is used for recoding, then recoding capability is achieved, but device complexity and ease of operation deteriorate due to complex tools and specialized personnel requirements
Solution Approach 1:
The patent extracts the recoding function from complex manual plate substitution and concentrates it into a single telescopic recoding element that can be actuated by any key. This element, when extended, selectively disengages specific retainer plates from the bolt, achieving recoding without complex tools or personnel requirements.
Solution Approach 2:
The telescopic recoding element serves multiple functions: it acts as a selective disengagement mechanism for different retainer plates, functions as a control element for code changes, and can be actuated by any key in the system. This universal design eliminates the need for specialized recoding tools and personnel.
2Ease of operation
If temporary keys are used for construction access, then ease of operation is improved, but reliability deteriorates due to risk of fraudulent use
Solution Approach 1:
The patent implements dynamic key management where the recoding element can be extended to disable specific keys after use. Temporary construction keys can be enabled for short-term access, then automatically or manually disabled by extending the recoding element, which moves the corresponding retainer plate to block the key's coding profile from engaging the bolt.
Solution Approach 2:
The system incorporates feedback through the recoding element that responds to key usage. After a temporary key is used, the recoding element can be actuated (manually or automatically) to change the lock's coding state, providing feedback that disables the temporary key and prevents its reuse, thereby maintaining security.
3Adaptability or versatility
If multiple codes are implemented, then adaptability is improved, but device complexity worsens due to multiple retainer plates
Solution Approach 1:
The patent segments the coding function across multiple retainer plates, each with specific notches that correspond to different key codes. The telescopic recoding element selectively disengages individual plates, allowing multiple codes to be implemented through modular plate design rather than complex mechanical structures.
Solution Approach 2:
The telescopic recoding element acts as an intermediary between the keys and the retainer plates. By extending or retracting, it mediates the interaction between any key and the selective disengagement of retainer plates, enabling multiple codes to be managed through a single control mechanism rather than requiring complex direct key-plate interactions.
4Productivity
If automatic recoding is implemented, then productivity is improved, but device complexity worsens due to self-enabled mechanism
Solution Approach 1:
The patent implements self-service through the recoding element that can be automatically actuated by the lock mechanism itself after a key is used. The system monitors key usage and automatically extends the recoding element to disable the used key, eliminating the need for manual intervention while maintaining simple operation through automatic productivity enhancement.
Data Source
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AI summary
The safety lock with one or more retainer plates moreover comprises a variable size recoding element (11) having a succession of sizes (KO, Kl, K2), each which enables a corresponding key (2a, 2b, 2c) of the type with one or more bits and which disables every key (2a, 2b) enabled by every preceding size in the succession, each key having its own control means of the recoding element adapted to automatically restore it in the size which enables the key when the recoding element has a size preceding that which enables the key.