Telescopic Sight Removable Adjustment Control Atmospheric Seal
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Solution Overview
Problem
Existing telescopic sights for firearms have inconvenient sealing arrangements that make it difficult for users to repair or replace sighting adjustment mechanisms without compromising the atmospheric seal, limiting flexibility and requiring multiple scopes for different applications.
Innovation Solution
A telescopic sight design with a housing that maintains an atmospheric seal even when the manual adjustment control is removed or replaced, featuring a movable plunger and a rotatable turret knob that slides within a port, allowing for interchangeable adjustment mechanisms without breaking the seal, and utilizing O-ring seals and retention features to ensure the plunger remains engaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the manual adjustment control is made removable and replaceable, then the ease of repair and adaptability are improved, but the sealing reliability deteriorates because removing the control would break the atmospheric seal
Solution Approach 1:
The manual adjustment control is segmented from the housing structure, allowing it to be removably mounted. The control assembly includes a knurled head and adjustment mechanism that can be detached from the sealed housing, enabling repair and replacement without compromising the atmospheric seal of the main body.
Solution Approach 2:
The manual adjustment control is extracted as a separate, removable component from the sealed housing. This allows the control to be taken out for repair or replacement while the housing maintains its atmospheric seal, resolving the contradiction between ease of repair and sealing reliability.
2Adaptability or versatility
If the manual adjustment control is made interchangeable for different applications, then the adaptability is improved, but the device complexity increases due to the need for multiple controls and sealing arrangements
Solution Approach 1:
The removable manual adjustment control design enables universality by allowing different control assemblies to be interchangeably mounted on the same housing. Users can swap controls tailored to different shooting applications (e.g., long-range vs. short-range) without modifying the housing or compromising the seal, thus achieving multi-functionality without increasing overall device complexity.
3Ease of repair
If the plunger is made fully separable from the manual adjustment control, then the ease of repair is improved, but the device complexity increases due to additional retention features
Solution Approach 1:
The plunger is nested within the housing with its outer end exposed through a port, while its inner end remains engaged with the movable member inside the sealed housing. This nested arrangement allows the manual adjustment control to be removed and replaced without affecting the plunger's connection to the internal optical components, facilitating easy repair while maintaining a relatively simple structure through the use of retention features.
Data Source
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AI summary
The present invention relates to a telescopic sight (1) for a firearm, having an external housing (2) and at least one manually adjustable sighting adjustment mechanism (3, 3') that comprises a manual adjustment control (12, 12') mounted on the housing and a movable plunger (30). The optical system of the sight comprises an adjustable sighting assembly (10) with at least one movable member (42) for adjusting the sighting of the telescopic sight. The plunger (30) is slidably engaged in a port in the housing to link the manual adjustment control with the movable member whereby, in use, `manual adjustment of the manual adjustment control causes the plunger to slide in the port and move the movable member to make the sighting adjustment. The slideable engagement is such that the housing interior (40) remains atmospherically sealed as the plunger slides in the port. The manual adjustment control (12, 12') is removably affixed (28, 29, 31) to the housing, and the manual adjustment control is fully separable from the plunger which remains slidably engaged and retained in the port when the manual adjustment control is removed from the housing,in order to maintain the atmospheric seal of the housing interior.