| 主权项 |
1. A crossbow operable for shooting missiles, said crossbow comprising:
(I) a bow comprising:
(a) a left-side bowhead and a right-side bowhead;(b) a left-side bow limb and a right-side bow limb;(c) 8 cam wheels, which are respectively affixed to an anterior end and an posterior end of each of said left-side and right-side bowheads and said left-side and right-side bow limbs, wherein each of said cam wheels comprises a top groove and a bottom groove, wherein each of said grooves is adapted to receive a bowhead string;(d) firing means operable for propelling said missile, said firing means comprising
(i) top and bottom connecting strings, wherein said top connecting string connects a top left-side bowhead string to a top right-side bowhead string and said bottom connecting string connects a bottom left-side bowhead string to a bottom right-side bowhead string;(ii) a retention base affixed to said top and bottom connecting strings;(iii) a trigger engagement means affixed to said top and bottom connecting strings;(iv) said top right-side bowhead string and bottom right-side bowhead string, wherein the top right-side bowhead string is engaged with a right trajectory adjustment means affixed to the right-side bowhead, the top wheel groove of the anterior cam wheel affixed to the right-side bow limb, the top wheel groove of the anterior cam wheel affixed to the right-side bowhead, the top wheel groove of the posterior cam wheel affixed to the right-side bowhead, the top wheel groove of the posterior cam wheel affixed to the right-side bow limb, and connected to the top connecting string, and wherein the bottom right-side bowhead string engages a right trajectory adjustment means affixed to the right-side bowhead, the bottom wheel groove of the anterior cam wheel affixed to the right-side bow limb, the bottom wheel groove of the anterior cam wheel affixed to the right-side bowhead, the bottom wheel groove of the posterior cam wheel affixed to the right-side bowhead, the bottom wheel groove of the posterior cam wheel affixed to the right-side bow limb, and connected to the bottom connecting string; and(v) said top left-side bowhead string and bottom left-side bowhead string, wherein the top left-side bowhead string is engaged with a left trajectory adjustment means affixed to the left-side bowhead, the top wheel groove of the anterior cam wheel affixed to the left-side bow limb, the top wheel groove of the anterior cam wheel affixed to the left-side bowhead, the top wheel groove of the posterior cam wheel affixed to the left-side bowhead, the top wheel groove of the posterior cam wheel affixed to the left-side bow limb, and connected to the top connecting string, and wherein the bottom left-side bowhead string engages a left trajectory adjustment means affixed to the left-side bowhead, the bottom wheel groove of the anterior cam wheel affixed to the left-side bow limb, the bottom wheel groove of the anterior cam wheel affixed to the left-side bowhead, the bottom wheel groove of the posterior cam wheel affixed to the left-side bowhead, the bottom wheel groove of the posterior cam wheel affixed to the left-side bow limb, and connected to the bottom connecting string; and (II) a tiller, comprising a tiller triggering means engageable with said trigger engagement means of said firing means for cocking and firing said crossbow. |
