Bow String Nose Button for Repeatable Draw Depth Control
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Solution Overview
Problem
Existing archery sighting aids fail to consistently correlate the depth of bow string draw with elevation angle, leading to inconsistent arrow impact points, making it difficult to achieve repeatable accuracy across different bows and users.
Innovation Solution
A nose button device that clamps onto the bow string, allowing archers to establish a consistent depth of draw and parallax by contacting the archer's nose, aiding in the development of muscle memory for precise arrow placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing sighting aids are used to correlate distance to elevation angle, then a sight picture can be established, but the depth of draw variable is not controlled, leading to inconsistent impact points
Solution Approach 1:
The sighting system is divided into independent control elements: the nose button handles depth of draw control while the sight picture handles elevation angle and distance correlation. This segmentation allows each element to focus on one variable without interfering with the other, resolving the contradiction between precision and complexity.
Solution Approach 2:
The nose button acts as an intermediary device between the archer's hand and the bowstring, providing a tactile reference point that mediates the depth of draw variable. This intermediary element enables consistent control of one parameter without requiring complex integration with the sighting system.
2Reliability
If the arrow axis is offset from the line of sight to enable depth of draw control, then repeatable control of launch angle is achieved, but transferability between different bows and users is reduced
Solution Approach 1:
The nose button device is self-adjusting to each user's facial anatomy, automatically establishing the correct depth of draw for that individual. This self-service mechanism eliminates the need for manual adjustment or transferability concerns, as the device adapts to the specific user without requiring system-specific calibration.
Solution Approach 2:
The device changes the physical parameter of the anchor point location on the face to accommodate different users and bow systems. By allowing the nose button position to vary based on individual anatomy rather than forcing a fixed geometric relationship, the system maintains repeatability while improving adaptability.
3Ease of operation
If a larger contact area is used for facial contact, then easier contact is achieved, but control precision and muscle memory development are reduced
Solution Approach 1:
The nose button concentrates the contact interaction at a specific localized point on the nose rather than distributing it over a larger area. This local quality focus provides precise tactile feedback for muscle memory development while remaining easy to contact due to the natural prominence of the nose. The localized contact point creates a clear, unambiguous reference for depth of draw control.
Data Source
AI summary
An archery aiming aid clips to a bow string and may be fixed at a position along the string so that an archer may draw the bow such that the bead contacts the archer's nose.An archer is able to hold the bow in a repeatable configuration of outstretched limbs and relative positions of the hands, the bow grip, the depth of draw of the bow string, the apex of the drawn bow string and an arrow nocked therein, and other factors relating to the mechanical energy stored in the bow and imparted to the arrow when released.An archer is able to build muscle memory so that from one shot to the next the archer may repeatably re-establish the same stored energy configuration in the body and bow, and the same parallax between the archers line of sight and the shooting axis of the bow, so that improved uniformity of trajectories is achieved, point of impact is learned and controlled more accurately, and thus the archers accuracy and effectiveness is increased.