Archery bow sight and range finder

Abstract

A bow sight with an adjustable range finder is described herein. The sight of the present invention is affixed in substantially the same vertical position as the bow to which it is attached. The range finder of the present invention moves independently of the sight. As the archer applies pressure to a conveniently positioned trigger, a ranging pin is rotated in relation to a guide pin and, as a result, the archer must raise the bow to accommodate. The archer will therefore necessarily shoot at an increased trajectory to compensate for the increased distance between the archer and the target.

What is claimed is: 
     
         1 . A device for aiming a projectile at a target comprising:
 a sight frame attached to a bow and positioned in a substantially vertical orientation and having a flange extending downwardly therefrom;   a first connecting member rotatably connected to the sight frame at the flange and extending downwardly and distally therefrom;   a second connecting member rotatably connected to a distal end of the first connecting member and extending substantially horizontally therefrom, the second connecting member also having a trigger mechanism extending substantially vertically therefrom wherein the trigger mechanism is configured to draw the second connecting member closer to the bow;   a third connecting member rotatably connected to a distal end of the second connecting member and extending upwardly and proximally therefrom;   a pin guide rotatably connected to the uppermost end of the third connecting member at a first pivot point, and also separately rotatably connected to the sight frame at a second pivot point, the first pivot point being located distally from the second pivot point, and the pin guide also having a guide pin and a ranging pin positioned thereon and extending perpendicular therefrom, wherein the guide pin is positioned closer to the second pivot point than the ranging pin;   wherein as the trigger mechanism is drawn towards the bow, movement of the second connecting member causes the third connecting member to pivot around the first pivot point and around the second pivot point such that the vertical movement of the guide pin is less than the vertical movement of the ranging pin.   
     
     
         2 . The device of  claim 1 , wherein as the trigger mechanism is drawn towards the bow, the guide pin moves around a first radius r 1  and the ranging pin moves around a second radius r 2  and the second radius r 2  is greater than the first radius r 1 . 
     
     
         3 . The device of  claim 1 , wherein the guide pin is movable relative to the second pivot point. 
     
     
         4 . The device of  claim 1 , wherein a circular sight is affixed to the sight frame wherein the pin guide, the guide pin and the ranging pin are inside the aperture of the circular sight and the circular sight remains stationary during use. 
     
     
         5 . A device for aiming a projectile at a target comprising:
 a sight frame affixed to a bow in a substantially vertical configuration;   a pin guide rotatably affixed to the sight frame at a pivot point at its lower end, an adjustable guide pin extending horizontally therefrom,   wherein the guide pin, the ranging pin and the pivot point all being in substantially vertical alignment;   wherein, the pivot point, the guide pin and the ranging pin are all in a substantially vertical alignment with the guide pin being positioned nearer the pivot point than the ranging pin initially but, in use, the guide pin and the ranging pin rotate around the pivot point such that the vertical movement of the guide pin is less than the vertical movement of the ranging pin.   
     
     
         6 . The device of  claim 5 , wherein, in use, the guide pin moves around a first radius r 1  and the ranging pin moves around a second radius r 2  and the second radius r 2  is greater than the first radius r 1 . 
     
     
         7 . The device of  claim 5 , wherein the guide pin is adjustable relative to the second pivot point. 
     
     
         8 . The device of  claim 5 , wherein a circular sight is affixed to the sight frame wherein the pin guide, the guide pin and the ranging pin are inside the aperture of the circular sight and the circular sight remains stationary during use. 
     
     
         9 . A method for aiming a projectile at a target comprising:
 affixing a sight frame to a bow, said sight frame having a pin guide rotatably affixed thereto, the pin guide having a pivot point at its lower end, an adjustable guide pin extending horizontally therefrom, and a ranging pin extending horizontally therefrom, the guide pin, the ranging pin and the pivot point all being in an initial position in substantially vertical alignment with the guide pin being positioned nearer the pivot point than the ranging pin;   calibrating the sight by shooting an arrow from the bow at a distance of twenty yards with the sight in the initial position so that, when the guide pin is placed the desired distance below the target, the ranging pin is positioned on the target;   sighting a target at a distance greater than twenty yards by rotating the guide pin and the ranging pin around the pivot point such that the vertical movement of the guide pin is less than the vertical movement of the ranging pin.