CROSSBOW
A crossbow includes a riser. The crossbow includes a first limb and a second limb. The first limb includes a first end and a second end. The second limb includes a first end and a second end. The first end of the first limb and the first end of the second limb are coupled to the riser. A first wheel is rotatably coupled to the first limb proximate the second end thereof. A second wheel is rotatably coupled to the second limb proximate the second end thereof. The crossbow includes a first power cord that includes a first end coupled to the riser and a second end coupled to the first wheel. The crossbow includes a second power cord a first end coupled to the riser and a second end coupled to the first wheel. The crossbow includes a bowstring. The crossbow includes an efficiency of at least 80%.
1 . A crossbow, comprising:
a riser;
a first limb and a second limb,
wherein the first limb comprises a first end and a second end;
wherein the second limb comprises a first end and a second end;
wherein the first end of the first limb and the first end of the second limb are coupled to the riser;
a first wheel rotatably coupled to the first limb proximate the second end thereof;
a second wheel rotatably coupled to the second limb proximate the second end thereof; and
a first power cord, comprising:
a first end coupled to the riser;
a second end coupled to the first wheel; and
a second power cord, comprising:
a first end coupled to the riser;
a second end coupled to the first wheel; and
a bowstring;
wherein the crossbow comprises an efficiency of at least 80%.
2 . The crossbow of claim 1 , wherein the crossbow is a reverse draw crossbow.
3 . The crossbow of claim 1 , wherein the crossbow comprises an energy storage system.
4 . The crossbow of claim 3 , wherein the energy storage system comprises the first limb, the second limb, the first wheel, the second wheel, the first power cord, the second power cord, and the bowstring.
5 . The crossbow of claim 1 , wherein the crossbow comprises an efficiency of 80% to 100%.
6 . The crossbow of claim 1 , wherein the crossbow comprises an efficiency of 80% to 90%.
7 . The crossbow of claim 1 , wherein the crossbow comprises an efficiency of 80% to 85%.
8 . The crossbow of claim 1 , wherein the crossbow comprises an efficiency of 83%.
9 . The crossbow of claim 1 , wherein the crossbow has a bowstring draw length of 15 inches.
10 . The crossbow of claim 1 , wherein the crossbow has an intermediate position that is 9 inches from an un-cocked position.
11 . The crossbow of claim 1 , wherein a distance between a cocked position and an un-cocked position is 15 inches.
12 . The crossbow of claim 1 , wherein a draw-force of the crossbow is at least 240 lb f at an intermediate position that is 9 inches from an un-cocked position.
13 . The crossbow of claim 1 , wherein the crossbow is configured to provide a kinetic energy of at least 170 ft-lb f for an arrow/bolt weighing 403 grains.
14 . A crossbow, comprising:
an energy storage system; and
a riser,
wherein the crossbow comprises an efficiency of at least 80%.
15 . The crossbow of claim 14 , wherein the energy storage system comprises:
a first limb and a second limb,
wherein the first limb comprises a first end and a second end;
wherein the second limb comprises a first end and a second end;
wherein the first end of the first limb and the first end of the second limb are coupled to the riser;
a first wheel rotatably coupled to the first limb proximate the second end thereof;
a second wheel rotatably coupled to the second limb proximate the second end thereof; and
a first power cord, comprising:
a first end coupled to the riser;
a second end coupled to the first wheel; and
a second power cord, comprising:
a first end coupled to the riser;
a second end coupled to the first wheel; and
a bowstring.
16 . The crossbow of claim 14 , wherein the crossbow comprises an efficiency of 80% to 100%.
17 . The crossbow of claim 14 , wherein the crossbow comprises an efficiency of 80% to 90%.
18 . The crossbow of claim 14 , wherein the crossbow comprises an efficiency of 80% to 85%.
19 . The crossbow of claim 14 , wherein the crossbow comprises an efficiency of 83%.
20 . The crossbow of claim 14 , wherein the crossbow is a reverse draw crossbow.