Electromechanical Control Device for Cylinder Lock Cam
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Solution Overview
Problem
Existing electromechanical control devices for lock cylinders suffer from complex construction, requiring numerous difficult-to-assemble components, leading to limited reliability and durability.
Innovation Solution
A simplified electromechanical control device for a cylinder lock with a reduced number of easily sourced components, featuring a motorized control rod and telescopic construction, which transforms rotation into reversible translation for connecting and disconnecting the handle from the cam, ensuring reliable operation and extended durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known electromechanical control devices are used, then the lock can be controlled electromechanically, but the construction becomes excessively complicated requiring a multiplicity of difficult-to-assemble components
Solution Approach 1:
The patent combines the motor, control rod, and connection mechanism into a single integrated electromechanical assembly that rotates as one unit. This merging of components eliminates the need for multiple separate parts that would require complex assembly, while maintaining the electromechanical control function. The motorized control rod assembly integrates the actuation mechanism directly with the connection element, simplifying the overall construction.
Solution Approach 2:
The motorized control rod serves multiple functions simultaneously: it acts as the actuator, the connection element, and the control mechanism. By making the control rod itself motorized, the device eliminates the need for separate actuation mechanisms, reducing component count while maintaining full electromechanical control capability.
2Volume of moving object
If miniaturised components are provided for housing in the cylinder, then the device fits in the lock cylinder, but the assembly becomes excessively complicated
Solution Approach 1:
The patent employs a nested arrangement where the control rod is housed within the shaft, and the motor is integrated into the control rod assembly. The clutch pin is received within the shaft, and various components are arranged concentrically along the longitudinal axis. This nesting allows multiple functional elements to be compacted into a small cylindrical volume without requiring complex external assemblies.
Solution Approach 2:
The device is divided into distinct functional segments along the longitudinal axis: the motorized control rod assembly, the shaft with clutch pin, and the cam connection mechanism. Each segment performs a specific function and can be manufactured separately using standard components, then assembled in a straightforward sequential manner, reducing overall assembly complexity despite the compact size.
3Reliability
If known electromechanical devices are used, then the lock control function is achieved, but the durability over time is limited
Solution Approach 1:
By merging the motor, control rod, and connection mechanism into a single integrated rotating assembly, the patent eliminates numerous connection points and interfaces between separate components. This reduction in the number of joints and interfaces directly improves durability by minimizing potential failure points, while the integrated construction maintains full electromechanical control functionality.
Solution Approach 2:
The motorized control rod assembly is designed to operate autonomously within the shaft, with the motor providing self-contained actuation. The clutch pin and cam connection mechanisms are integrated into the rotating assembly, eliminating the need for external actuation mechanisms or complex control linkages, thereby reducing component count and improving long-term reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution simplifies assembly and enhances reliability and durability of the electromechanical control device, addressing the complexity and reliability issues of existing devices, while maintaining effective operation over an extended period.
Implementation Method 1
a motorized control rod (10) for rotating on itself, and means for transforming a rotation of the control rod (10) into a reversible translation of the connecting element (9)
Data Source
Figure 1
Figure 2
Figure 2A~3A
AI summary
The electromechanical control device (1) for an operating cam (2) of a cylinder lock comprises a shaft (7) fixable to a handle (8), a clutch pin (9) translatable along the shaft (7) for the connection of the handle to the cam (2), a control rod (10) coaxial with the shaft (7), a motor (29) for rotationally operating the control rod (10) on itself, the clutch pin (9) having an axial cavity (20) in which are positioned means for the transformation of a rotation of the control rod (10) into a reversible translation of the clutch pin (9) along the shaft (7) from a disconnection position to a connection position.