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Torque control system for cocking a crossbow

  • US 10,082,359 B2
  • Filed: 12/30/2016
  • Issued: 09/25/2018
  • Est. Priority Date: 12/16/2013
  • Status: Active Grant
First Claim
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1. A torque control system for cocking a crossbow having at least first and second flexible limbs attached to a center rail and a draw string that translates along the center rail between a released configuration and a drawn configuration, the torque control system for cocking a crossbow comprising:

  • a string carrier comprising a catch moveable between a closed position that engages the draw string and an open position that releases the draw string, a sear moveable between a cocked position coupled with the catch to retain the catch in the closed position and a de-cocked position that releases the catch to the open position, a dry fire lockout moveable between a disengaged position and a lockout position that retains the catch in the closed position, and a safety moveable between a free position and a safe position that retains the catch in the closed position, wherein the string carrier is captured by and slides along the center rail between engagement with the draw string in the released configuration to a retracted position that locates the draw string in the drawn configuration, wherein the string carrier engages with a trigger mounted on the center rail that is positioned to move the catch from the closed position and the open position to fire the crossbow when the string carrier is in the retracted position;

    a cocking mechanism comprising a rotating member mounted to the center rail and coupled to a flexible tension member attached to the string carrier;

    a cocking handle configured to engage with the rotating member to cock the crossbow; and

    a torque control mechanism comprising an integral clutch that limits output torque applied to the rotating member by the cocking handle such that rotating the cocking handle after the string carrier is in the retracted position causes the cocking handle to slip to limit torque applied to the cocking mechanism and the string carrier to not move past the retracted position.

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