Adjustable Peep Sight Aperture Axis for String Angle Alignment
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Solution Overview
Problem
Existing archery peep sights have fixed mechanical features that limit their ability to accommodate varying string angles, leading to misalignment with the line-of-sight and inaccuracies in aiming due to a limited number of predefined groove angles, resulting in co-alignment errors between the front and rear apertures.
Innovation Solution
An adjustable aperture axis peep sight device with an outer and inner body member, featuring partially spherical surfaces that allow for independent adjustment of the inner body member relative to the outer ring, enabling alignment with the line-of-sight to the target within a range of approximately +/- 10 degrees, using clamping mechanisms to secure the inner body member relative to the outer ring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed string groove pairs are used in the peep housing, then the housing can be mounted to the bow string at predetermined angles, but the peep aperture axis cannot be co-aligned with the line-of-sight when the string angle does not match the predetermined groove angles
Solution Approach 1:
The patent introduces a movable inner body member within the outer housing that can be adjusted to different angular positions. This dynamic adjustment mechanism allows the peep aperture axis to be aligned with the line-of-sight despite fixed grooves in the outer housing, resolving the contradiction between fixed manufacturing and precision alignment requirements
Solution Approach 2:
The peep sight is divided into two independent segments: an outer housing with fixed mounting grooves and an inner body member with the aperture. This segmentation allows the outer housing to maintain fixed structural features while the inner body can be independently positioned to achieve precise alignment, addressing both manufacturing simplicity and alignment accuracy
2Area of stationary object
If the peep housing diameter is kept small (less than 0.75 inches), then the device remains compact, but only a limited number of string groove pairs can be accommodated in the housing
Solution Approach 1:
The inner body member is nested within the outer housing, allowing the aperture mechanism to be contained within a compact outer diameter. This nesting arrangement enables multiple groove pairs to be effectively utilized through the angular adjustment capability of the inner body, maintaining a small housing diameter while increasing adaptability to different string angles
3Measurement precision
If the inner body member is made movable relative to the outer ring, then the aperture axis can be aligned with the line-of-sight, but additional adjustment mechanisms are required
Solution Approach 1:
The patent employs spherical surfaces on the inner body member that interact with corresponding features in the outer housing. This spherical interface provides smooth angular adjustment while maintaining mechanical simplicity, allowing precise alignment without complex adjustment mechanisms
Data Source
AI summary
An adjustable aperture axis peep sight device is disclosed with an outer ring having a first axis, and an inner body member having a second axis. The first axis of the outer ring forms a sight angle with the second axis of the inner body member. A first partially spherical surface is formed on the outer ring. A second partially spherical surface is formed on the inner body member. The first partially spherical surface movably mates with the second partially spherical surface. The sight angle is adjustable by moving the inner body member relative to the outer ring.