LETTER Innovation for an archery aid to overcome impaired limb function


Having given up archery as a result of arthritis in my hands, I was inspired to use my years of design/project engineering experience to come up with a solution.


The result was an adapter simply screwed onto my recurve bow which converts it much in the style of a crossbow, using a foot stirrup to hold the bow whilst pulling up the bow string using two hands. However, the recurve bow is held upright in the conventional archer’s stance along with a horizontal trigger release unit.


The trigger release system is probably unique in that the bow string is automatically held and retained at full draw using a pair of profiled tufnol rollers. These come together controlled by a cut-out profile at the end of a pivoting trigger arm. When the rollers are brought together they create a circular aperture allowing the arrow nock end to be inserted for engagement on the bow string.


This concept was designed to provide a non-abrasive hold and release of the bow string. The trigger arm is held in the armed position by a spring safety catch to avoid accidental actuation, also a trigger guard is incorporated.


The system allows time for unimpeded aiming and the arrow is released by the action of depressing the safety catch spring just prior to squeezing the trigger. The arrangement is further


enhanced by making the adapter bracing tube in two parts slotted together, also a range finder scale and an aperture site is incorporated.


Now in my retirement I am able to enjoy again this rewarding pastime with the company of fellow members of our local field archery club.


Rodney P Rogers


The staff at Engineering Designer would be very interested to hear from other Institution Members who have used their skills and knowledge to help themselves or others by designing or adapting a product, system or service. Please email editorial@engineeringdesigner.co.uk with your stories and we will print them in forthcoming editions of the Journal. Editor


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