Integral Lid Locking Assembly Using Rotational Force Inflection
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Solution Overview
Problem
Traditional rotary latch-based locks are inadequate for high-precision mechanical equipment due to their size, automation difficulties, lack of adjustability, and inability to withstand frequent use, posing safety and tamper-resistance issues.
Innovation Solution
A rotational locking assembly that manipulates the axis of rotation using spur gears and a driving linkage, allowing for automatic or manual operation, self-contained within the device, and capable of locking the lid at 90°, with a motor-driven mechanism to prevent unauthorized opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rotary latch-based locks are used, then the locking mechanism provides basic security, but the device size becomes too large and automation becomes difficult
Solution Approach 1:
The patent merges the locking mechanism with the lid assembly itself, creating an integral locking system where the latch is built into the lid structure. This eliminates the need for separate external lock components, reducing overall device volume while maintaining security functionality through the integrated design.
Solution Approach 2:
The locking mechanism is nested within the lid assembly structure, with the latch and actuator components housed inside the lid's internal cavity. This nested arrangement allows the locking system to occupy minimal space within the existing device envelope, addressing the size constraint while preserving security.
2Reliability
If traditional rotary latch-based locks are used, then the locking mechanism provides basic security, but the adjustability is insufficient for frequent use
Solution Approach 1:
The patent implements a spring-loaded actuator mechanism that dynamically adjusts the latch engagement force and position. The spring provides continuous pressure to maintain secure locking while allowing automatic resetting after each operation, enabling the system to adapt to frequent opening and closing cycles without manual adjustment.
Solution Approach 2:
The locking mechanism incorporates adjustable spring tension and latch engagement depth parameters. These parameters can be modified to optimize the locking force and engagement characteristics for different usage frequencies and security requirements, providing the necessary adaptability for various operational conditions.
3Reliability
If traditional rotary latch-based locks are used, then the locking mechanism provides basic security, but the operation count is limited to 20,000-100,000 operations
Solution Approach 1:
The spring-loaded actuator automatically resets the latch mechanism after each operation, eliminating the need for manual resetting or maintenance intervention. This self-service capability reduces wear on critical components and extends the operational lifespan of the locking system far beyond traditional rotary latches, enabling hundreds of thousands of operations.
Solution Approach 2:
The locking mechanism is designed with periodic cyclic operation in mind, where the spring-loaded actuator repeatedly engages and disengages the latch in a controlled manner. This periodic action pattern, combined with low-friction components and proper material selection, enables the system to withstand significantly higher operation counts compared to traditional mechanisms.
4Reliability
If traditional rotary latch-based locks are used, then the locking mechanism provides basic security, but tamper resistance and automatic operation are not achieved
Solution Approach 1:
The patent replaces manual key-based operation with an automated actuator mechanism that can be controlled by sensors, motors, or other automated systems. This substitution eliminates the need for physical keys and manual intervention, enabling automatic locking and unlocking operations while enhancing security through consistent, repeatable actuation that is difficult to tamper with.
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 provides a tamper-resistant, automated, and reliable locking mechanism that withstands frequent use, ensuring secure closure and safe operation without external exposure, enhancing safety and functionality.
Implementation Method 1
a motor that may be mounted to a bracket. The rotating shaft may apply a forward or reverse rotational force to a rotational gear assembly
Implementation Method 2
a first spur gear responsive to the rotating shaft, and a second spur gear responsive to the first spur gear and coupled with a support shaft
Implementation Method 3
the driving linkage, at the point where it is coupled to the second spur gear, to be aligned at or past the axis of rotation. In this configuration, the driving linkage is further physically impeded by being positioned against the support shaft preventing further reverse movement
Data Source
AI summary
The invention includes a locking apparatus adapted to use rotational force inflection as an integral locking mechanism, and in particular an integral locking mechanism for the lid of an asymmetrical rotational mixer.