Cylinder Lock Bridge Assembly With Fixed-Pin Rotational Mounting
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Solution Overview
Problem
The assembly of existing cylinder locks requires dexterity and experience due to unstable component alignment during the insertion of locking pins, making it difficult for inexperienced users.
Innovation Solution
The cylinder lock design incorporates fixed locking pins and a bridge with flattened sides, allowing components to be easily aligned and secured through a simple rotational mechanism, eliminating the need for precise manual manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cylinder lock is mounted in an existing door, then the lock can be installed, but the door must be opened to access the mounting side, making the process cumbersome
Solution Approach 1:
The patent inverts the traditional mounting approach by providing a removable access panel on the interior side of the door that can be opened without opening the door itself. This allows the mounting side to be accessed from the interior, eliminating the need to open the door to install the lock cylinder.
Solution Approach 2:
The door assembly is segmented into a fixed door portion and a removable access panel. This segmentation allows the access panel to be detached independently, providing direct access to the lock mounting area without requiring the entire door to be opened.
2Ease of operation
If the entire door assembly is replaced to install a lock, then proper mounting access is achieved, but the cost and complexity increase significantly
Solution Approach 1:
Instead of replacing the entire door assembly, the invention segments the door into a permanent door structure and a removable access panel. This allows access to the lock mounting area without replacing the whole door, reducing complexity and cost.
Solution Approach 2:
The access panel is extracted as a separate, removable component from the door assembly. This extracted panel provides the necessary access pathway to the lock mounting side without requiring replacement of the entire door structure.
3Ease of operation
If the entire door assembly is replaced to install a lock, then proper mounting access is achieved, but waste material increases
Solution Approach 1:
Only the necessary access panel is removed and replaced, rather than the entire door assembly. This minimizes waste material by preserving the majority of the original door structure that remains functional.
Solution Approach 2:
The door is segmented into reusable permanent portions and a replaceable access panel portion. This segmentation ensures that only the minimum necessary material is discarded while the rest of the door can be reused.
Data Source
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AI summary
Cylinder lock that can be simply assembled and disassembled. The cylinder lock has a cylinder housing, a bridge and a cam. In the cylinder housing a first locking pin is fixedly received in a locking pin bore. The locking pin passes a cylindrical recess in the cylinder housing transversely. A first cylindrical end of the bridge is provided with a locking pin recess and with a flattened side which extends at least from a free end, remote from a central part of the bridge, of the first cylindrical end of the bridge up to and including a first locking pin recess. The bridge can be simply connected with the cylinder housing by inserting the first cylindrical end of the bridge into the cylindrical recess in the cylinder housing and by thereupon rotating the bridge through an angle, such that the locking pin extends in the locking pin recess in the bridge. After that, with a locking bolt the thus assembled whole can be locked.