Patent ID: 9494379
Filing Date: 2016-11-15
CPC Classification: F41B

Claim Text:
1. A crossbow comprising: first and second flexible limbs attached to a center rail; a first cam mounted to the first bow limb and rotatable around a first axis, the first cam comprising a first draw string journal having a first plane of rotation perpendicular to the first axis, a first upper power cable take-up journal extending in a direction perpendicular to the first plane of rotation of the first draw string journal, and a first lower power cable take-up journal extending in an opposite direction perpendicular to the first plane of rotation; a second cam mounted to the second bow limb and rotatable around a second axis, the second cam comprising a second draw string journal having a second plane of rotation perpendicular to the second axis, a second upper power cable take-up journal extending in a direction perpendicular to the second plane of rotation of the second draw string journal, and a second lower power cable take-up journal extending in an opposite direction perpendicular to the second plane of rotation; a draw string received in the string guide journals and secured to the first and second cams, wherein the draw string unwinds from the string guide journals as it translates from a released configuration to a drawn configuration; and upper and lower power cables received in the upper and lower power cable take-up journals on each of the first and second cams; wherein as the crossbow is drawn from the released configuration to the drawn configuration the upper and lower power cables wrap onto the respective upper and lower power cable take-up journals and are displaced along the first and second axes away from the first and second planes of rotation of the first and second draw string journals.