Bowstring Arrow Aiming Apparatus Eliminates Parallax

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Solution Overview

Problem

Current archery aiming systems, such as pin sights and peep holes, suffer from parallax issues and inadequate gravity compensation, especially when the bow is tilted or rotated, leading to reduced accuracy and increased complexity in aiming.

Innovation Solution

The development of an Arrow Aiming Apparatus for Bowstring Releases that allows archers to aim directly along the arrow shaft, similar to rifle aiming, by integrating forward and rear sighting devices that rotate with the bow, maintaining consistent elevation and compensating for arrow drop, even when the bow is rotated or tilted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If archers use traditional pin sights and peep holes, then aiming can be performed from conventional positions, but parallax distortion occurs and accuracy is reduced

Engineering Contradiction:
Improveaiming accuracyVSAvoidaiming system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent inverts the traditional aiming approach by moving the sighting reference from the bow (fixed) to the arrow (movable). The rear sight is positioned at the nock of the arrow rather than on the bow, allowing the sight to move with the arrow and eliminate parallax between the sight and arrow shaft. This inversion resolves the contradiction by achieving higher accuracy through a fundamentally different configuration.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent introduces an optical system (lenses, mirrors, or prisms) as an intermediary between the archer's eye and the target. This optical intermediary creates a virtual image that aligns the sight, arrow shaft, and target, eliminating parallax distortion without requiring the archer to change positioning. The optical mediator translates the movable arrow-based sight into a stable aiming reference.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the bow is rotated or tilted for hunting positions, then flexibility is improved, but gravity compensation becomes inadequate and accuracy is reduced

Engineering Contradiction:
Improveshooting position flexibilityVSAvoidgravity compensation accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent makes the rear sight dynamic by positioning it at the nock of the arrow, which moves with the arrow during shooting. This dynamic positioning ensures the sight remains aligned with the arrow shaft regardless of bow rotation or tilt. Combined with an adjustable optical system, this allows gravity compensation to be maintained across various shooting positions, resolving the contradiction between flexibility and accuracy.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent adds a rotational dimension to the sighting system by allowing the optical components to rotate or tilt with the bow. This enables the sight to maintain proper alignment and gravity compensation settings even when the bow is rotated for uphill/downhill shooting or tilted for various hunting positions, preserving accuracy across multiple dimensions of movement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Force

If archers aim from chest position with long bows, then muscle strength is maximized, but parallax angle increases and aiming becomes complex

Engineering Contradiction:
Improvemuscle strength utilizationVSAvoidaiming simplicity
Core Design Contradiction:
ForceVSEase of operation

Solution Approach 1:

The optical system acts as an intermediary that bridges the gap between the chest-positioned archer and the arrow shaft. By creating a virtual image through lenses or mirrors, the system allows the archer to aim from the comfortable chest position while the optical mediator corrects the parallax angle, making aiming as intuitive as looking directly along the arrow shaft.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Measurement precision

If the draw point is raised to jaw level, then parallax angle is reduced, but aiming time increases and repeatability is improved

Engineering Contradiction:
Improveaiming precisionVSAvoidaiming time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent establishes a fixed relationship between the rear sight at the nock and the arrow shaft before shooting. This preliminary alignment ensures that once the archer acquires the target, the sight is already positioned correctly relative to the arrow, eliminating the need for time-consuming adjustments and enabling rapid, repeatable aiming.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9429392B1Arrow aiming apparatus for bowstring releases
Publication Date: 2016.08.30 LEDBETTER BELINDA JANE
  • US9429392B1 patent drawing
  • US9429392B1 patent drawing
  • US9429392B1 patent drawing

AI summary

An offset viewing tube for daylight hours and a laser for lowlight aiming conditions are connected to a bowstring release enabling an archer to aim from behind an arrow nock along the arrow shaft similar to aiming a rifle thus eliminating parallax aiming distortion. The bow can be rotated without moving the aiming device or changing the rear elevation setting. Single pin aiming reduces confusion during setup and rushed shooting. Day or night cameras can be attached.