Bow Hunting Broad Arrowhead
The arrowhead uses a pin as a pivot for two folding blades in the center of the assembly. The application requirements are such that the pivot pin must not bend under impact, and it must allow the blades to pivot freely around it. The hunter must also be able to service the assembly in the field; therefore the pin must be able to be removed and reinstalled at least three times and still provide the necessary retention.
The original design incorporated the use of a Slotted Spring Pin as the pivot, but the Slotted Pins were bending upon impact resulting in a dysfunctional head which made the removal of the pin during servicing extremely difficult.