Riflescope Turret Zero-Adjustment Assembly Without Part Removal
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Solution Overview
Problem
Conventional riflescope turrets require intricate methods to zero the scope after mounting, often necessitating part removal, which can lead to loss or contamination, and are tied to turret adjustment units, complicating the zeroing process.
Innovation Solution
A riflescope with a zero-adjustment assembly within the turret, featuring a locking collar and zero-adjustment disc that allows independent zeroing without requiring parts removal, and includes a cam follower element to set rotational limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional zeroing methods are used, then zeroing can be achieved, but parts must be removed from the scope which increases risk of part loss or contamination
Solution Approach 1:
The zeroing assembly is nested within the turret structure, with the zeroing disc and locking collar integrated into the turret body. This allows zeroing operations to be performed without removing any parts from the scope, as the entire zeroing mechanism is contained within the existing turret housing.
Solution Approach 2:
The turret structure serves multiple functions: it provides both the adjustment mechanism for windage/elevation and houses the zeroing assembly. The locking collar and zeroing disc share the turret's structural components, allowing a single structure to fulfill both adjustment and zeroing functions without requiring separate external parts.
2Ease of operation
If zeroing is tied to turret adjustment units, then adjustment precision is maintained, but zeroing process becomes more complex
Solution Approach 1:
The zeroing function is segmented from the turret adjustment mechanism into a separate zeroing assembly that operates independently. The zeroing disc rotates on the turret screw axis but is controlled by a separate locking collar, allowing zeroing to be performed without affecting the turret adjustment units and simplifying the overall operation.
Solution Approach 2:
The locking collar acts as an intermediary between the user and the zeroing disc. By engaging the locking collar, the user can securely hold and rotate the zeroing disc without directly manipulating the fine-threaded turret screw, thereby simplifying the zeroing operation while maintaining precision through the intermediate mechanical linkage.
3Measurement precision
If tactile and audible indicators are used, then accuracy in low light conditions is improved, but device complexity increases
Solution Approach 1:
The tactile and audible indicator mechanisms are merged with the existing turret rotation mechanism. The same mechanical components that provide rotation also generate the tactile clicks and audible sounds, eliminating the need for separate indicator systems and reducing overall device complexity while maintaining measurement precision.
Data Source
AI summary
A riflescope with a scope body has a movable optical element defining an optical axis connected to the scope body. The riflescope also has a turret having an outer knob and a turret screw defining a screw axis and operably connected to the optical element for changing the optical axis in response to rotation of the turret screw. The riflescope also includes a zero-adjustment assembly contained within the turret and operably interfacing with the turret screw. The zero-adjustment assembly comprises a zero-adjustment disc and a locking collar disposed around a downward facing central shaft of the zero-adjustment disc. The zero-adjustment disc is contained in an upper recess of the outer knob. The locking collar has a first position in which the zero-adjustment disc is freely rotatable about the turret screw and a second position in which free rotation of the zero-adjustment disc is prevented.