Telescopic Sight Actuation Device Friction Coupling
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Solution Overview
Problem
Existing actuation devices for telescopic sights face issues with incremental adjustments and inadvertent displacement of settings, as they either restrict fine adjustments or allow unwanted twists due to loose fixation mechanisms.
Innovation Solution
An actuation device with a rotatable coupling part and an elastic coupling part that provides friction to prevent twisting, allowing non-incremental and precise adjustments, featuring a guide arrangement and elastomeric sections for secure and precise operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a guide device prevents the index element from being twisted relative to the coupling part, then adjustment precision is improved, but the ability to perform fine adjustments is lost
Solution Approach 1:
The patent applies the dynamics principle by making the coupling part rotatable about the rotation axis, allowing the index element to be dynamically adjusted. The coupling part can rotate to different angular positions, enabling both precise positioning and fine adjustments. This dynamic capability resolves the contradiction by allowing the system to transition between fixed precision positioning and flexible fine-tuning modes.
2Ease of operation
If the knob is loosened to adjust individual flags, then adjustability is improved, but stability of existing settings is worsened
Solution Approach 1:
The patent applies segmentation by dividing the adjustment mechanism into independent components: the coupling part that rotates and the index element that can be independently positioned. This allows the index element to be adjusted without affecting other components, and once positioned, it can be independently secured. This resolves the contradiction by enabling adjustment of one element without compromising the stability of others.
3Ease of operation
If index elements are permanently rotatable in recesses, then ease of adjustment is improved, but unwanted adjustments occur
Solution Approach 1:
The patent introduces an intermediary mechanism: the coupling part acts as a mediator between the index element and the rotation axis. The coupling part provides a controlled interface that allows intentional rotation while preventing unintended movement. This intermediary structure resolves the contradiction by filtering out unwanted adjustments while permitting deliberate ones.
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
Enables precise, non-incremental adjustments and prevents inadvertent changes in settings, ensuring stable and accurate ballistic trajectory corrections for telescopic sights.
Implementation Method 1
a further, preferably at least partly elastic coupling part provides friction forces which counteract the index element being twisted relative to the first and the further coupling part
Data Source
AI summary
An actuating device for setting an optical parameter of an optical device including a telescopic sight. The actuating device includes a first coupling part rotatable about a rotation axis and an index element pushable onto the first coupling part for assuming an operating position. A guide arrangement guides the index element on the first coupling part and is configured to permit a push-on of the index element in the direction of the rotation axis and to permit a twisting of the index element relative to the first coupling part at least in a direction perpendicular to or tangential to the rotation axis. A second coupling part is configured to provide friction forces counteracting a twisting of the index element relative to the first and second coupling parts when the index element is in the operating position thereof.