Crossbow Quick-Release Mechanism for Compact Storage
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Solution Overview
Problem
Conventional crossbows are cumbersome to carry due to their extended size when not in use, as the riser and limbs increase the transverse dimension, and the existing connection mechanism requires tools for disassembly and is prone to losing components.
Innovation Solution
A quick-release mechanism incorporating a mount, cam, and handle assembly that allows for easy detachment and reattachment of the riser and limbs from the barrel, using a threaded bolt with a gap and a movable cam to facilitate quick connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the riser and limbs are connected to the barrel using a threaded bolt and tube, then the connection is secure and reliable, but the crossbow cannot be quickly disassembled and requires tools for detachment
Solution Approach 1:
The connection mechanism is divided into separate functional components: a threaded bolt for secure attachment, a tube for positioning, and a cam with extensive portion for quick release. This segmentation allows each component to perform its specific function optimally while enabling easy disassembly through cam manipulation.
Solution Approach 2:
The cam is designed to be movable within the mount recess, transitioning between engaged and disengaged positions. This dynamic element allows the connection to be quickly released by moving the cam, providing both secure connection during use and easy disassembly when needed.
2Strength
If the threaded bolt is used to connect the riser to the barrel, then the connection is strong, but the threaded bolt may be lost and requires careful handling
Solution Approach 1:
The tube acts as an intermediary element between the threaded bolt and the mount. The threaded bolt engages with the tube, which is positioned in the mount aperture, creating a secured assembly that reduces the risk of losing the threaded bolt while maintaining connection strength.
3Stability of the object's composition
If the riser and limbs extend transversely relative to the barrel, then the connection is stable, but the transverse dimension increases making it difficult to carry
Solution Approach 1:
The crossbow is divided into separable modules: the barrel, the riser with limbs, and the connection mechanism. This segmentation allows the riser and limbs to be detached from the barrel, reducing the transverse dimension for carrying while maintaining stable connection during use through the threaded bolt and cam mechanism.
Data Source
AI summary
A crossbow includes a barrel, a tube, a threaded bolt, a riser, a mount, a cam and a handle. The tube is connected to the barrel. The threaded bolt includes a head and is engaged with the tube to provide a gap between the head and the tube. The mount extends from the riser, and includes an aperture for receiving the tube and a recess for receiving the tube and the threaded bolt so that the gap is located in the rear recess. The cam is movable in the recess and includes an extensive portion and a space for receiving the tube. The handle assembly is pivotally connected to the mount and the cam so that the handle assembly is operable to move the cam in the recess of the mount to insert the extensive portion of the cam in the gap to keep the connection mechanism in the aperture.