Crossbow trigger with improved sear surface and adjustment with ability to control trigger pull weight with various input draw weights

Abstract

A crossbow trigger assembly with improved sear surface and reduced friction sear-engaging system. The trigger pull force can be adjusted through the use of a spring pocket that has a threaded insert in it allowing varying tension adjustment. An auto-safety feature consists of a pin that is forced rearward when trigger assembly is cocked, pushing the safety latch to the safe position.

What is claimed as the invention is: 
     
         1 . A crossbow trigger mechanism comprising:
 a) a housing adapted for installation in a crossbow stock;   b) a forward-opening bowstring entry area in the upper portion of said housing for receiving a bowstring;   c) a one-piece trigger pivotally installed in a lower portion of said housing, said trigger comprising a trigger arm extending downwardly from the trigger pivot point and out of the case and a first sear having a first sear surface;   d) a bowstring retaining claw connected to a second sear having a second sear surface;   whereby, when a bowstring is retained by said bowstring-retaining claw the first sear surface engages the second sear surface;   whereby, when said trigger is pulled rearwardly, first sear surface disengages from the second sear surface, and, whereby by virtue of the force produced by bowstring tension, the bowstring retaining claw pivots upwardly away from said bowstring entry area, thereby releasing said bowstring to project an arrow or other projectile;   whereby at least one of the first sear surface and the second sear surface is a pivoting pin mounted on roller bearings.   
     
     
         2 . The crossbow trigger mechanism of  claim 1 , further comprising
 a manual safety lever having a safe position and a fire position;   an auto-safety pin   
       whereby, when a bowstring is retained by said bowstring-retaining claw, said auto-safety pin moves said manual safety lever to the safe position.