Sighting Apparatus Mount With Ball-and-Spring Shock Repositioning
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Solution Overview
Problem
Sighting apparatuses on weapon systems face challenges in maintaining accuracy and stability post-shock, as existing solutions either overburden the device with stiffness or struggle to absorb shock energy effectively while maintaining referencing accuracy.
Innovation Solution
A passive shock-absorbing system combining a line-point-plane assembly with spring-based shock-absorbers, featuring rigid plates connected by balls and elastic return members, allowing accurate repositioning and shock absorption while maintaining referencing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the sighting device is hardened to be robust and stiff, then the structural strength is improved, but the device becomes heavier
Solution Approach 1:
The system divides the sighting device into two functional segments: a rigid sighting apparatus for accurate observation and a separate passive filtering device (silent block) for shock absorption. This segmentation allows each component to be optimized independently - the sighting device remains lightweight and precise while the filtering device handles shock loads, eliminating the need to over-engineer the entire assembly for strength.
2Object-affected harmful factors
If a passive filtering device is used to absorb shock energy, then the shock absorption capability is improved, but the referencing accuracy deteriorates due to deformation
Solution Approach 1:
The patent introduces a silent block as an intermediary element positioned between the sighting device and the weapon system. This mediator absorbs shock energy through controlled deformation while being mechanically decoupled from the sighting apparatus, preventing deformation transmission to the optical components. The silent block acts as a buffer that protects the precision instrument from harmful vibrations and shocks.
Solution Approach 2:
The passive filtering device is pre-installed and pre-positioned to provide immediate shock absorption capability before shocks occur. The silent block is designed with predetermined deformation characteristics that allow it to absorb expected shock energies while maintaining the sighting device within acceptable positioning tolerances, ensuring accuracy is preserved ahead of time.
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 system enables precise repositioning and direction referencing, maintaining line of sight accuracy during and after shocks, with rapid return to initial position, suitable for repetitive shock cycles and varying shock directions.
Implementation Method 1
a set of elastic return members connecting the two plates to each other, which are arranged perpendicular to the planes of the two plates and/or parallel to these latter and/or inclined with respect to these latter
Data Source
AI summary
Disclosed is a passive shock-absorbing system for a sighting apparatus installed on a device including equipment generating the shocks, the system including two rigid plates substantially parallel to one another, via a first plate secured to the part of the device including the equipment and a second plate secured to the sighting apparatus, the plates being connected to one another by a position return component returning the plates to a determined relative rest position after absorbing a shock. The system is characterized in that the position return component includes a line-point-plane positioning unit with balls between the two plates and a set of elastic return members connecting the two plates to one another. A corresponding device is also disclosed.