Mechanical Gear Train for Accelerometer and Latch Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sensing and indicating mechanisms for applications like drinking vessels, medication containers, and package transit require complex electromechanical designs with circuitry and logic controllers, which are not optimal for simple functions like inversion, shock, and tilt sensing, and are not easily manufacturable or user-friendly.
Innovation Solution
A purely mechanical gear train mechanism using a central geared inertial mass with bevel-type gear teeth and stopper gears that transduces translational kinetic energy into rotational motion, allowing for binary indication or counting without the need for circuitry, and can be easily manufactured and assembled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromechanical accelerometers and tilt sensors are used, then sensing and indicating functions are achieved, but device complexity and manufacturing cost increase due to required circuitry and logic controllers
Solution Approach 1:
The patent replaces electromechanical sensing systems with a purely mechanical gear train mechanism. The central geared inertial mass element interacts with stopper gears through mechanical forces generated by acceleration, tilt, or submersion, directly driving rotational motion that indicates the physical phenomenon without requiring any electronic circuitry or logic controllers.
Solution Approach 2:
The mechanical gear train mechanism is self-actuating through the physical phenomena it detects. The inertial mass element automatically responds to acceleration, tilt, or submersion forces, translating them through the gear train to produce indication without external power sources, control systems, or electronic processing.
2Measurement precision
If electromechanical sensing mechanisms are implemented, then accurate detection is achieved, but ease of manufacture and assembly deteriorates due to complex components
Solution Approach 1:
The mechanism is divided into distinct functional segments: a central geared inertial mass element with gear teeth, stopper gears with opposing teeth, and an indicator component. Each segment is independently manufacturable using standard gear manufacturing processes, and they assemble through simple meshing of gear teeth without requiring complex alignment or specialized assembly procedures.
Solution Approach 2:
The gear train mechanism serves multiple sensing functions (acceleration, tilt, submersion) through a single unified mechanical structure. The same inertial mass and gear train can detect different physical phenomena depending on orientation and configuration, eliminating the need for multiple specialized sensors and simplifying manufacturing.
3Ease of operation
If mechanical sensing mechanisms are used, then simplicity and ease of operation are improved, but the ability to provide continuous or precise measurement is limited
Solution Approach 1:
The mechanism uses periodic oscillation of the central inertial mass element between the two stopper gears to generate discrete rotational increments. Each oscillation cycle produces a measurable indication, creating a periodic measurement output that balances mechanical simplicity with useful information provision through repeated, reliable cycles.
Solution Approach 2:
The system transitions from a static mechanical assembly to a dynamic measurement device through the oscillating motion of the inertial mass. The dynamic interaction between the moving inertial mass and the stationary stopper gears converts physical phenomena into measurable rotational displacement, providing continuous indication through sequential positional changes.
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 mechanism provides a cost-effective, compact, and robust solution for sensing and indicating physical phenomena like acceleration, tilt, and submersion, offering a simple and user-friendly implementation for various applications without the complexity of electromechanical devices.
Implementation Method 1
A purely mechanical gear train mechanism using a central geared inertial mass with bevel-type gear teeth and stopper gears that transduces translational kinetic energy into rotational motion
Implementation Method 2
An axial force, such as one imposed by gravity, buoyancy of the geared disc mass, or acceleration of the housing cylinder relative to the geared disc, compels the geared disc against one of the stopper gears
Implementation Method 3
An axial force, such as one imposed by gravity, buoyancy of the geared disc mass, or acceleration of the housing cylinder relative to the geared disc, compels the geared disc against one of the stopper gears
Implementation Method 4
An axial force, such as one imposed by gravity, buoyancy of the geared disc mass, or acceleration of the housing cylinder relative to the geared disc, compels the geared disc against one of the stopper gears
Data Source
AI summary
The invention describes a novel method of transducing a force input into a perpendicularly directed advance of a geared component. This simple mechanism allows for the implementation of latches, accelerometers, tilt sensors, and counters that are uniquely inexpensive, robust, compact, and easy to implement, since they are able to rely on purely mechanical operation.