Watch Shock Indicator Using Deformable Inertia Block
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Solution Overview
Problem
Current technologies lack a reliable and cost-effective method to quantify the maximum acceleration experienced by watches during impacts, making it difficult to identify potential damage in after-sales service and during certification testing.
Innovation Solution
A shock indicator device is integrated inside the watch, featuring a movable inertia block connected by an elastic or ductile material that deforms or breaks upon exceeding a specific acceleration threshold, leaving a visible mark or deformation to indicate significant shocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If expensive measuring devices and procedures are used to obtain maximum acceleration values, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent employs a disposable indicator element that is destroyed or permanently altered during the measurement process. This indicator contains a brittle material or chemical composition that fractures or changes color when subjected to shock beyond a threshold, providing acceleration data without requiring expensive, complex reusable measuring devices. The one-time use nature eliminates the need for sophisticated electronics and calibration systems.
Solution Approach 2:
The patent replaces complex mechanical measuring systems with a simpler indicator mechanism. Instead of using sensors, transducers, or electronic acceleration meters, the invention uses a passive indicator element that responds to shock through material fracture, color change, or physical deformation. This substitution dramatically reduces device complexity while maintaining measurement capability.
2Measurement precision
If complex measuring procedures are implemented in laboratory settings, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The indicator element performs the measurement function autonomously without requiring external measuring equipment or complex procedures. The indicator is pre-calibrated during manufacturing to respond to specific acceleration thresholds, and during use, it automatically indicates shock levels through its physical or chemical response. This eliminates the need for operators to conduct complex laboratory procedures.
Solution Approach 2:
The indicator is pre-prepared and pre-calibrated during manufacturing with specific fracture patterns or color-change characteristics corresponding to defined acceleration thresholds. This preliminary preparation allows the indicator to provide accurate acceleration measurements during field use without requiring any complex setup or calibration procedures at the time of measurement.
3Loss of information
If no shock indication device is installed in the watch, then device complexity is reduced, but loss of information about shock history increases
Solution Approach 1:
The patent extracts the shock indication function from complex electronic memory systems and implements it through a simple physical indicator element housed within the watch case. This indicator element independently records shock information through material changes, separating the information storage function from the watch's main movement and reducing overall device complexity while preserving shock history data.
Solution Approach 2:
The indicator element utilizes color change or visual appearance changes to indicate shock history. The brittle material or chemical composition within the indicator changes its optical properties when subjected to shock beyond threshold levels, providing permanent visual records of acceleration events. This allows shock information to be stored and read without requiring electronic displays or complex retrieval systems.
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
This solution provides a reliable, inexpensive, and accessible means to determine the maximum acceleration experienced by the watch, facilitating quicker damage identification and improving after-sales service efficiency.
Implementation Method 1
at least one connecting element made of elastic or ductile or breakable material, which is elastically or plastically deformable when movements are imparted to said at least one inertia block
Implementation Method 2
at least one inertia block... when movements are imparted to said at least one inertia block
Data Source
AI summary
Shock indicator device for a watch, internal to the watch, including a structure, to which is fixed an inertia block by means of at least one connecting element made of elastic or ductile or breakable material, which is elastically and plastically deformable when movements are imparted to the inertia block, this inertia block being movable in proximity to a fixed opposing surface comprised in the structure itself or in another element of a watch case, and arranged to come into contact with this opposing surface, to impart a proof indicator of impact or a permanent deformation or damage to the inertia block and/or to the connecting element and/or to the opposing surface, and/or to a breakable element incorporated in the shock indicator device), when the acceleration imparted to this inertia block is higher than a given acceleration threshold.