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Student Notable

Sports & Outdoors Award

Core77 Design Awards 2023

Link Mechanical Bow

The Link Mechanical Bow uses a polycarbonate construction of linkages and springs to launch an arrow, providing a linear draw weight and higher mechanical advantage compared to a traditional compound bow. The design works by using a system of levers and springs that store energy as the bow is drawn, allowing for a more consistent draw weight and increased accuracy. This innovative approach to bow design eliminates the need for a flexible construction and offers a more efficient and powerful option for archery enthusiasts. This construction of linkages trades force for distance, meaning that the draw is longer and easier but the release force is a lot higher.

The springs used in the bow are very heavy and not very long. They are too heavy to be pulled apart by hand. The bow uses a pair of contraparallelogram four bar linkages with an offset string attachment point to increase the mechanical advantage of the system to allow the springs to be decompressed quite easily. The trade off for this is a long draw length relative to the decompression distance of the springs. The springs designed for the bow are two pairs of composite leaf springs, which also act to dampen the bow when the bow is released. They compress to their resting point, but once the linkages pass that point the springs act as dampers to help cancel out any residual rotational force left in the system after the arrow is fired. One of the benefits of this system is a linear draw weight and higher mechanical advantage over a traditional compound bow. The bow is very easy to draw relative to the output force on the arrow. A linear, easy draw allows for a more steady hand and more increased accuracy when firing an arrow. Another benefit is that the bow can be disassembled into smaller parts for more convenient transportation.

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  • Honoree

    Jonathan Trimble

  • School

    Savannah College of Art and Design

  • Category

    Sports & Outdoors

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