Linkage Dual-Mode Release for Thumb and Back-Tension Control
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Solution Overview
Problem
Existing archery releases, such as thumb trigger and back tension releases, suffer from issues like target panic, muscle fatigue, difficulty for beginners, and the need for two separate releases due to different operation modes, as well as poor universality in size and adaptability.
Innovation Solution
A linkage dual mode release mechanism with a main body, string hook, linkage lock, thumb trigger, sear, and trigger bar flange, allowing flexible operation in two modes and adjustable size to accommodate individual archers' preferences, featuring a compact design with automatic reset and adjustable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thumb trigger release is used, then the release mechanism works reliably, but archers experience target panic and muscle fatigue due to manual triggering requirements
Solution Approach 1:
The release mechanism is segmented into two independent firing modes: thumb trigger mode for reliable manual release and back tension mode for automatic release. This segmentation allows archers to choose the mode that best suits their skill level and comfort, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The release mechanism is designed with multi-functionality to operate in both thumb trigger mode and back tension mode using a single device. This universality eliminates the need for archers to switch between different release types, improving ease of operation while maintaining reliability through the thumb trigger option.
2Ease of operation
If a back tension release is used, then archers can fire automatically using back muscle tension, but beginners find it difficult to control and there is risk of premature release
Solution Approach 1:
The release mechanism incorporates dynamic elements including a movable sear and linkage lock that adapt to the archer's technique. The system transitions from a static trigger mechanism to a dynamic one where the sear can be engaged by either thumb pressure or back tension, allowing the mechanism to respond reliably to different input forces while maintaining firing control.
3Adaptability or versatility
If archers use both thumb trigger and back tension releases, then they can adapt to different game conditions, but they need to purchase and maintain two separate releases
Solution Approach 1:
The invention merges the functionality of two separate releases (thumb trigger release and back tension release) into a single integrated device. The release mechanism combines both triggering methods in one unit, allowing archers to switch between modes without carrying or switching devices, thus reducing device complexity while maintaining adaptability.
4Ease of manufacture
If existing releases have fixed size, then manufacturing is simplified, but they have poor universality and cannot accommodate different archers' preferences
Solution Approach 1:
The release incorporates adjustable components including a movable sear position and adjustable linkage lock that allow customization of the release's characteristics. This dynamic adjustability enables the same manufactured unit to adapt to different archers' preferences and hand sizes, maintaining ease of manufacture through standardized production while achieving size adaptability through field adjustment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances shooting accuracy and safety by reducing muscle fatigue and target panic, simplifies operation for beginners, and reduces the need for multiple releases, while maintaining a compact form factor and low maintenance costs.
Implementation Method 1
The string hook is elastically pivoted to one end of the main body for releasably hook to a bow string
Implementation Method 2
The linkage lock is elastically pivoted to an outer surface of the main body
Implementation Method 3
The sear is pivoted to the main body, and located between the string hook and the linkage lock
Data Source
AI summary
The linkage dual mode release includes a main body, a string hook, a linkage lock, a thumb trigger, a sear, and a trigger bar flange. The main body has a first finger groove arm. The string hook is elastically pivoted to one end of the main body for releasably hook to a bow string. The linkage lock is elastically pivoted to an outer surface of the main body, and the linkage lock is located adjacent the other end of the main body opposite to the string hook. The linkage lock has a locking arm and a lever arm extending to the main body. The thumb trigger is mounted to the linkage lock extending away from the main body. The sear is pivoted to the main body, a rest member is located between the sear and the main body, the sear comprises a second finger groove arm.