Concealed Broad Head Arrow Tip and Associated Methods

Abstract

A broadhead device for arrow shaft includes a inner shaft having a plurality of blades pivotally coupled to the shaft at a pivot end of the blade. The blades are pivotal between a retracted position with each blade disposed in the shaft and an extended position with each blade extending radially outward from the shaft. Each blade has a trigger on the pivot end of the blade. A shroud is slidably disposed over the inner shaft, and the plurality of blades. The shroud is slidable on the shaft to contact the blade trigger and extend the blades.

1 . A broadhead arrow tip device configured to attach to an arrow shaft, comprising:
 a) an inner shaft with a plurality of blade slots extending longitudinally along a portion of the shaft;   b) a plurality of blades with each blade pivotally coupled at a pivot end to one of the plurality of blade slots, and pivotal between a retracted position with each blade disposed in one of the blade slots and an extended position with each blade extending radially outward from the blade slot;   c) a blade trigger disposed on the pivot end of each of the plurality of blades; and   d) a shroud, slidably disposed over the shaft and the plurality of blades, the shroud being slidable on the shaft to contact the blade trigger of each of the plurality of blades to move each blades to the extended position.   
   
   
       2 . The device of  claim 1 , further comprising:
 a magnetic retention device disposed on a forward end of the inner shaft and positioned with respect to the plurality of blades so as to provide an attractive magnetic force to each of the plurality of blades so as to resist movement of each of the blades when the blades are in the retracted position.   
   
   
       3 . The device of  claim 1 , further comprising:
 an o-ring disposed rearward of the shroud and positioned between the shroud and the blade trigger of each of the plurality of blades, the o-ring being sized and shaped to restrict movement of each of the blades and retain each blade in the retracted position.   
   
   
       4 . The device of  claim 1 , the shroud further comprising:
 a) a plurality of blade slots spaced radially apart and extending longitudinally along the shroud, each of the plurality of blade slots alignable with one of the plurality of blades; and   c) each of the plurality of blades being extendable through the blade slots when the shroud contacts the blade trigger and pushes the blade trigger to move the blades to the extended position.   
   
   
       5 . The device of  claim 1 , wherein the plurality of blades are disposed fully within an outer diameter of the shroud when the plurality of blades are in the retracted position. 
   
   
       6 . The device of  claim 1 , further comprising:
 an impact ring disposed on the inner shaft and positioned to contact each of the plurality of blades when the blades are moved to the extended position and being configured to support each of the blades in the extended position when a load is applied to the blades.   
   
   
       7 . The device of  claim 1 , wherein the shroud includes a chiseled point arrow tip configured to penetrate relatively hard material selected from the group consisting of bone, cartilage, gristle, sinew, and combinations thereof. 
   
   
       8 . The device of  claim 1 , wherein the pivot end of each of the plurality of blades is pivotally coupled to a rearward end of the blade end of the inner shaft and each of the plurality of blades rotates about the pivot end in a forward to rearward direction with respect to the inner shaft. 
   
   
       9 . The device of  claim 1 , wherein the shroud is rotatable on the inner shaft between a deployment position and a practice position with the plurality of blades being movable from the retracted position to the extended position when the shroud is in the deployment position, and the shroud restricting movement of the plurality of blades when the shroud is in the practice position. 
   
   
       10 . The device of  claim 9 , further comprising:
 a) a deployment slot disposed in the shroud;   b) a practice hole disposed in the shroud; and   c) a set screw disposable in a set screw hole in the inner shaft and extendable into one of the deployment slot or the practice hole when the shroud is rotated to position one of the deployment slot or the practice hole over the set screw hole in the inner shaft.   
   
   
       11 . A broadhead arrow tip device configured to attach to an arrow shaft, comprising:
 a) an inner shaft having a blade end with a plurality of blade slots extending longitudinally along the shaft and spaced radially apart, and an attachment end opposite the blade end, the attachment end being configured to be coupled to an arrow shaft;   b) a plurality of blades with each blade pivotally coupled at a pivot end to one of the plurality of blade slots, and pivotal between a retracted position with each blade disposed in one of the blade slots and an extended position with each blade extending radially outward from the blade slot;   c) a blade trigger disposed on the pivot end of each of the plurality of blades; and   d) a shroud, slidably disposed over the shaft, and the plurality of blades, the shroud being slidably on the shaft to contact the blade trigger of each of the plurality of blades to move each blades to the extended position; and   e) a magnetic retention device disposed on a forward end of the blade end of the inner shaft, and positioned with respect to the plurality of blades to provide an attractive magnetic force to each of the plurality of blades so as to resist movement of each of the blades when the blades are in the retracted position.   
   
   
       12 . The device of  claim 11 , further comprising:
 an o-ring disposed rearward of the shroud and positioned between the shroud and the blade trigger of each of the plurality of blades, the o-ring being sized and shaped to restrict movement of each of the blades and retain each blade in the retracted position.   
   
   
       13 . The device of  claim 11 , the shroud further comprising:
 a) a plurality of blade windows spaced radially apart and extending longitudinally along the shroud, each of the plurality of blade windows alignable with one of the plurality of blades; and   c) each of the plurality of blades being extendable through the blade window when the shroud contacts the blade trigger and pushes the blade trigger to move the blades to the extended position.   
   
   
       14 . The device of  claim 11 , wherein the plurality of blades are disposed fully within an outer diameter of the shroud when the plurality of blades are in the retracted position. 
   
   
       15 . The device of  claim 11 , further comprising:
 an impact ring disposed on the inner shaft and positioned to contact each of the plurality of blades when the blades are moved to the extended position and being configured to support each of the blades in the extended position when a load is applied to the blades.   
   
   
       16 . The device of  claim 11 , wherein the pivot end of each of the plurality of blades is pivotally coupled to a rearward end of the blade end of the inner shaft and each of the plurality of blades rotates about the pivot end in a forward to rearward direction with respect to the inner shaft. 
   
   
       17 . The device of  claim 11 , wherein the shroud is rotatable on the inner shaft between a deployment position and a practice position with the plurality of blades being movable from the retracted position to the extended position when the shroud is in the deployment position, and the shroud restricting movement of the plurality of blades when the shroud is in the practice position. 
   
   
       18 . The device of  claim 17 , further comprising:
 a) a deployment slot disposed in the shroud;   b) a practice hole disposed in the shroud; and   c) a set screw disposable in a set screw hole in the inner shaft and extendable into one of the deployment slot or the practice hole when the shroud is rotated to position one of the deployment slot or the practice hole over the set screw hole in the inner shaft.   
   
   
       19 . A method for extending movable blades of a broadhead arrow tip, comprising:
 a) sliding a shroud of the broadhead arrow tip longitudinally on an inner shaft such that a contact surface of the shroud contacts a blade trigger on each of a plurality of blades pivotally coupled to the inner shaft;   b) pushing the shroud against the blade trigger with sufficient force to move the blade trigger and rotate each of the plurality of blades from a retracted position in which each blade is substantially within an outer diameter of the shroud to an extended position in which each blade extends radially outward from the outer diameter of the shroud.   
   
   
       20 . The method of  claim 19 , further comprising:
 a) rotating the shroud from a practice position in which the shroud restricts movement of each of the plurality of blades to an deployment position in which one of a plurality of blade slots in the shroud is aligned with each of the plurality of blades so as to allow each of the plurality of blades to rotate through the corresponding blade slot to the extended position.