Archery Sight with Automatic Sight Pin Adjustment

Abstract

An archery sight for use with archery bows having different draw weights is provided. The archery sight includes a plurality of sight pins for demarcating a respective plurality of different target distances, with at least some of the sight pins being gang adjustable for accommodating the different draw weights. An adjustment member is movable along a first direction between first and second positions reflective of first and second draw weights, the adjustment member has a plurality of travel pathways being operably associated with the plurality of sight pins to move the sight pins along a second direction different from the first direction so that movement between the travel and the sight pins causes the sight pins to simultaneously move in a second to thereby demarcate their respective target distances for the different draw weights.

What is claimed is: 
     
         1 . An archery sight for use with archery bows having different draw weights, the archery sight comprising:
 a base portion;   a sight frame portion extending from the base portion and having a sight window;   a plurality of sight pin assemblies connected to the base portion, each sight pin assembly having a sight pin that extends into the sight window, each sight pin having a sight point for demarcating a different target distance from the other sight points; and   an adjustment mechanism operatively associated with the plurality of sight pin assemblies for simultaneously adjusting each sight pin to its associated demarcated target distance, the adjustment mechanism comprising:
 an adjustment body movable with respect to the base member along a first direction between a first position reflective of a first draw weight and a second position reflective of a second draw weight; 
 a plurality of guide tracks associated with the adjustment body and operatively associated with each of the plurality of sight pin assemblies; 
   wherein relative movement between the adjustment body and at least some of the sight pin assemblies causes the sight pins to move along one of the guide tracks for simultaneous adjustment of the sight pins to their associated demarcated target distances based on at least one of the first and second draw weights.   
     
     
         2 . An archery sight according to  claim 1 , wherein:
 the adjustment body comprises a plate movable along the first direction between the first and second positions; and   the plurality of guide tracks comprise guide slots formed in the plate.   
     
     
         3 . An archery sight according to  claim 2 , wherein each guide slot extends along a pathway comprising at least one of linear and curvilinear shapes. 
     
     
         4 . An archery sight according to  claim 3 , wherein the pathway of one of the guide slots comprises a shape that ensures one of the sight pin assemblies remains stationary during simultaneously gang adjustment of the at least some of the plurality of sight pins. 
     
     
         5 . An archery sight according to  claim 2 , wherein the adjustment mechanism further comprises a lead screw operably associated with the adjustment plate for moving the plate linearly along the first direction to thereby move the plurality of sight pins between retracted and extended positions. 
     
     
         6 . An archery sight according to  claim 5 , and further comprising a linear guide member connected to the base member, the linear guide member being operably associated with the plurality of sight pin assemblies to thereby guide the sight pin assemblies along a second linear direction between the retracted and extended positions when the plate is moved between the first and second positions. 
     
     
         7 . An archery sight according to  claim 6 , wherein the second linear direction is perpendicular to the first linear direction. 
     
     
         8 . An archery sight according to  claim 7 , wherein each of the plurality of sight pin assemblies comprises:
 a guide pin having a first end extending from one of the sight pins and a second end extending through one of the guide slots;   a guide nut connected to the second end of the guide pin for retaining the guide pin in the guide slot, the guide nut being slidably connected to the linear guide member for movement therealong to thereby cause the sight pin to move in a vertical direction within the guide slot along the second linear direction between the retracted and extended positions when the plate is moved between the first and second positions.   
     
     
         9 . An archery sight according to  claim 8 , and further comprising a locking mechanism operatively associated with the adjustment mechanism to thereby selectively lock and unlock the sight pin assemblies so that the sight pins can be selectively gang adjusted during calibration and locked for use during sighting in of a distant target. 
     
     
         10 . An archery sight according to  claim 9 , wherein the locking mechanism comprises:
 a first locking wedge associated with the linear guide member;   a second locking wedge associated with the adjustment member; and   a locking shaft operably associated with one of the first and second locking wedges, wherein:
 movement of the one wedge in a first locking direction causes an increase in a combined thickness of the wedge members between the linear guide member and the adjustment member to thereby lock the linear guide member and the adjustment member against relative movement; and 
 movement of the one wedge member in a second unlocking direction causes a decrease in a combined thickness of the wedge members to thereby unlock the linear guide member and the adjustment member for relative movement therebetween. 
   
     
     
         11 . An archery sight according to  claim 1 , wherein the adjustment mechanism further comprises a lead screw operably associated with the adjustment plate for moving the plate linearly along the first direction to thereby move the plurality of sight pins between retracted and extended positions. 
     
     
         12 . An archery sight according to  claim 1 , and further comprising a guide member connected to the base member, the guide member being operably associated with the plurality of sight pin assemblies to thereby guide the sight pin assemblies along a second direction between the retracted and extended positions when the adjustment member is moved in the first direction between the first and second positions. 
     
     
         13 . An archery sight according to  claim 12 , and further comprising a locking mechanism operatively associated with the adjustment mechanism and the guide member to thereby selectively lock and unlock the sight pin assemblies so that the sight pins can be selectively gang adjusted during calibration and locked for use during sighting in of a distant target. 
     
     
         14 . An archery sight according to  claim 13 , wherein the locking mechanism comprises:
 a first locking wedge associated with the guide member;   a second locking wedge associated with the adjustment member; and   a locking shaft operably associated with one of the first and second locking wedges, wherein:
 movement of the one wedge in a first locking direction causes an increase in a combined thickness of the wedge members between the guide member and the adjustment member to thereby lock the guide member and the adjustment member against relative movement; and 
 movement of the one wedge member in a second unlocking direction causes a decrease in a combined thickness of the wedge members to thereby unlock the guide member and the adjustment member for relative movement therebetween. 
   
     
     
         15 . An archery sight for use with archery bows having different draw weights, the archery sight comprising:
 a plurality of sight pins for demarcating a respective plurality of different target distances, at least some of the sight pins being gang adjustable for accommodating the different draw weights;   an adjustment member movable along a first direction between a first position reflective of a first draw weight and a second position reflective of a second draw weight, the adjustment member having a plurality of travel pathways, the plurality of travel pathways being operably associated with the at least some of the plurality of sight pins to move the sight pins along a second direction different from the first direction;   wherein relative movement between the plurality of travel pathways of the adjustment member and the at least some of the sight pins causes the at least some of the sight pins to simultaneously move in the second direction to thereby demarcate their respective target distances for at least one of the first and second draw weights.   
     
     
         16 . An archery sight according to  claim 15 , wherein the first and second directions are linear. 
     
     
         17 . An archery sight according to  claim 16 , wherein the first and second directions are perpendicular. 
     
     
         18 . An archery sight according to  claim 15 , wherein each of the plurality of travel pathways are different from the other travel pathways. 
     
     
         19 . An archery sight according to  claim 18 , wherein the plurality of travel pathways comprise at least one of linear and curvilinear pathways. 
     
     
         20 . A method of tuning an archery bow sight for a plurality of bows with different draw weights and target distances, the method comprising:
 providing an adjustment member with a plurality of travel pathways, each travel pathway being associated with a particular target distance for a plurality of different draw weights;   slidably connecting a plurality sight pins to the plurality of travel pathways;   moving the adjustment member along a first direction so that the travel pathways cause each of the plurality of sight pins to simultaneously move in a second direction proportionate to its associated target distance and one of the plurality of different draw weights to thereby simultaneously tune each sight pin.