Telescopic Sight Zoom Ring Locking Mechanism
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Solution Overview
Problem
Crossbow telescopic sights with fixed reticle patterns are inconvenient for use with varying bolt velocities, as they require manual adjustment and memorization of conversion factors, and existing zoom mechanisms lack secure settings to prevent accidental changes in magnification.
Innovation Solution
A telescopic sight with a manually adjustable zoom mechanism featuring a slideable and rotatable zoom adjustment ring that locks into place using interengaging formations, allowing for precise magnification setting and secure retention, linked to an optical zoom system with an image erector lens system, maintaining the desired zoom setting until intentionally changed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed reticle pattern is used in crossbow telescopic sights, then the scope structure is simple, but it requires manual adjustment and memorization of conversion factors when bolt velocities vary
Solution Approach 1:
The patent applies the dynamics principle by making the reticle pattern adjustable rather than fixed. The scope allows users to change the reticle pattern to match different bolt velocities, transforming a static system into a dynamic one that adapts to varying operational conditions. This eliminates the need for manual conversion factor calculations while maintaining relatively simple scope structure.
2Adaptability or versatility
If a manually adjustable zoom mechanism is provided, then magnification can be adjusted for different ranges, but the setting may change accidentally due to lack of secure retention
Solution Approach 1:
The patent applies preliminary action by providing pre-configured adjustable reticle patterns that are prepared in advance for different bolt velocities. The user selects the appropriate pre-configured pattern before shooting, eliminating the need for complex real-time calculations and ensuring the correct settings are already in place for the intended shooting conditions.
3Ease of operation
If the zoom adjustment ring is made rotatable for easy adjustment, then magnification can be changed smoothly, but it becomes vulnerable to accidental rotation and setting changes
Solution Approach 1:
The patent applies dynamics by making the adjustment mechanism itself adjustable. The scope allows the user to configure the adjustment ring's behavior - whether it should be freely rotatable for easy adjustment or locked in place for stability. This dynamic configuration capability allows the same mechanism to serve both ease of operation and reliability needs depending on the shooting situation.
Data Source
AI summary
A telescopic sight for a hand-held weapon comprises a housing for an optical system that presents a telescopic image to a user, and a zoom adjustment ring on the housing. The optical system has objective and ocular lens systems and between these an image erector lens system, and a sighting element bearing a graphic image pattern at either a first focal plane between the image erector lens system and the objective lens system or a second focal plane between the image erector lens system and the ocular lens system. An optical zoom system is linked to the zoom adjustment ring for effecting a change in magnification. The zoom adjustment ring is movable over the housing in opposite forward and rearward axial directions between a locked position and an unlocked position to adjust the zoom magnification. In the locked position interengaging formations between the ring and housing slides into engagement.