Crossbow Support Structure for Stable Prone Use and Storage
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Solution Overview
Problem
Conventional crossbows are heavy and uncomfortable to use due to their design, and they lack a stable stand-up mechanism for temporary storage.
Innovation Solution
A support device for crossbows that includes inclined faces on either side, a link with a lock hole, and angular support legs, allowing the crossbow to be positioned in a way that shifts its weight center for balance and stability, enabling it to stand upright.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the crossbow is designed with more parts to ensure functionality, then the operational capability is improved, but the weight increases making it uncomfortable to use
Solution Approach 1:
The crossbow is divided into two main segments: a lightweight body that can be easily held and aimed, and a separate stock that provides additional support when needed. The stock can be attached or detached, allowing users to carry the lightweight body for aiming while having the option to attach the stock for enhanced stability during shooting, thus resolving the contradiction between operational capability and weight.
2Adaptability or versatility
If the crossbow is designed as a conventional single-position structure, then the manufacturing is simple, but it cannot adapt to different usage scenarios including storage
Solution Approach 1:
The crossbow incorporates a dynamic positioning system with an adjustable stock that can be set to different angles and positions. The stock includes an adjustable stop mechanism that allows the user to configure the crossbow for different scenarios such as prone shooting, standing shooting, or vertical storage. This dynamic adjustability enables the crossbow to adapt to multiple usage scenarios without requiring multiple different devices, resolving the contradiction between adaptability and structural complexity.
3Ease of operation
If the crossbow is positioned with only high ends of inclined faces contacting the ground, then the structure is simple, but it becomes unstable and falls due to weight imbalance
Solution Approach 1:
The crossbow includes a weight balancing mechanism with adjustable weights or counterweights that can be pre-positioned to compensate for the weight imbalance between the grip portion and the aim device rack. Before positioning the crossbow on the ground, the user can adjust these weights to achieve proper balance, ensuring that when the high ends of the inclined faces contact the ground, the crossbow remains stable and does not fall, thus resolving the contradiction between positioning simplicity and stability.
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
The solution provides stability and prevents the crossbow from falling by redistributing its weight center, allowing it to be safely stored or used in various positions, including prone and uneven surfaces.
Implementation Method 1
When the body shifts from the first position to the second position, the first weight center transfers to the second weight center so that the grip portion and the aim device rack reach a weight balance
Data Source
AI summary
A crossbow includes a body, a grip portion, an aim device rack, a stock connected to the rear end of the body, and two support devices connected to two sides of the front end of the body. Each support device includes an inclined face including a low end is located corresponding to the aim device rack, and a high end located corresponding to the grip portion. A link is connected between the two support devices. A base is connected to the link. Two support legs angularly extend from the base. The crossbow can be operated in a prone position. The crossbow can be positioned between a first position where the two high ends contact the ground, and a second position where both of the high end and the low end of each of the two inclined faces contact the ground. The crossbow does not fall in first and second positions.