Crossbow Winch Trigger Assembly for Faster Winding
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Solution Overview
Problem
Current crossbows face issues with complex and labor-intensive winding processes, long filling times, and poor controllability due to their complicated mechanisms.
Innovation Solution
A winch winding trigger assembly system incorporating a pulley and trigger-releasing mechanism, including a shell with a winding ratchet mechanism, a trigger mechanism, and a security slide block, which integrates a pulley traction line and a tension coil spring for efficient and controlled string winding and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional crossbow winding mechanism is used, then the crossbow can be filled, but the filling process is labor-consuming and time-consuming
Solution Approach 1:
The patent introduces a dynamic winding system where the reel can rotate freely during the filling process, allowing the user to simply pull the string to wind it onto the reel. This dynamic approach eliminates the need for manual cranking or complex winding mechanisms, significantly reducing the effort and time required to fill the crossbow.
Solution Approach 2:
The patent uses a reel as an intermediary device between the user and the string winding process. The reel captures the string as it is pulled, automatically winding it onto the spool. This intermediary mechanism simplifies the user's task to merely pulling the string while the reel handles the winding operation automatically.
2Ease of operation
If traditional crossbow mechanism is used, then the crossbow can be operated, but the controllability is poor
Solution Approach 1:
The patent divides the trigger mechanism into distinct functional segments: a trigger that releases the first locking hook, a separate second locking hook for securing the string, and an independent safety block. This segmentation allows each component to perform its specific function independently, improving overall controllability while maintaining manageable complexity through modular design.
Solution Approach 2:
The patent implements a dynamic control system where the safety block can be positioned in different states (engaged or disengaged) to control the release sequence. The first locking hook is released first, followed by the second locking hook, creating a controlled two-stage firing mechanism that enhances precision and safety.
3Reliability
If winding ratchet mechanism and trigger mechanism are linked, then controllability and safety are improved, but the device complexity increases
Solution Approach 1:
The patent combines the winding ratchet mechanism and trigger mechanism into a single integrated assembly housed within one shell. The ratchet mechanism for winding the string and the trigger mechanism for releasing the stored energy are merged into a unified structure, improving reliability through better coordination while managing complexity through integrated design.
Solution Approach 2:
The safety block serves as an intermediary component that mediates between the winding mechanism and the trigger mechanism. It controls the interaction between these two systems by preventing premature release, ensuring that the winding and firing operations are properly coordinated, thereby enhancing safety without requiring overly complex interlocking mechanisms.
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
This system simplifies the winding process, enhances controllability, and improves safety by linking the winding ratchet mechanism with the trigger mechanism, reducing the time and effort required for filling and maintaining the crossbow.
Implementation Method 1
a pulley-resetting device to draw the pulley to reset. Preferably, said pulley-resetting device is a tension coil spring
Implementation Method 2
said winding ratchet mechanism, arranged at the rear of inner cavity of the shell, includes a reel and a ratchet, a pawl, a pawl spring for driving the pawl and the locking ratchet
Data Source
AI summary
The invention relates to the technical field of crossbow, specifically relating to a winch winding trigger assembly system comprising a pulley and trigger-releasing system; said trigger-releasing system includes a shell and winding ratchet mechanism, trigger mechanism, security slide block in inner cavity of shell; said winding ratchet mechanism includes reel and ratchet, pawl, pawl spring for driving spring and locking ratchet, trigger lock rod for driving pawl and unlocking ratchet fixedly assembled with reel; said trigger mechanism comprises locking hook and its coordinating trigger, locking hook spring for driving locking hook to reset; said security slide block can drive trigger lock rod to slide along inner cavity of shell; said pulley is connected with reel through pulley traction line. The invention combines crossbow structure, solving problems that crossbow is slow in filling and poor in winding via mutual linkage of winding ratchet mechanism and trigger mechanism, improving controllability and safety.