Lien's bow

Abstract

A bow includes a rigid bow frame having two ends and defining a longitudinal axis between two ends; a tension unit including an elastic cable extended between the ends of the bow frame, wherein the elastic cable is extended at a rear side of the bow frame along the longitudinal axis thereof; and a guidance unit provided at a middle of the bow frame for setting said arrow at a position that a rear end of the arrow is biased against a middle of the elastic cable, wherein the elastic cable is drawn back to build tension thereof for shooting the arrow.

What is claimed is: 
     
         1 . A bow for a trajectory of an arrow, comprising:
 a rigid bow frame having two ends and defining a longitudinal axis between said two ends;   a tension unit which comprises an elastic cable extended between said ends of said bow frame, wherein said elastic cable is extended at a rear side of said bow frame along said longitudinal axis thereof; and   a guidance unit provided at a middle of said bow frame for setting said arrow at a position that a rear end of said arrow is biased against a middle of said elastic cable, wherein said elastic cable is drawn back to build tension thereof for shooting said arrow.   
     
     
         2 . The bow, as recited in  claim 1 , wherein said elastic cable has an elongated flat structure defining a flat surface for said rear end of said arrow biasing thereat. 
     
     
         3 . The bow, as recited in  claim 1 , wherein said tension unit further comprises a securing unit formed at a front side of said bow frame, and two locking units provided at two ends of said elastic cable to couple with said securing unit, such that said two ends of said elastic cable are extended and encircled at said two ends of said bow frame to affix at said front side of said bow frame. 
     
     
         4 . The bow, as recited in  claim 3 , wherein said bow frame further comprises two retaining slots formed at said two ends of said bow frame, wherein two end portions of said elastic cable are slid into said retaining slots respectively in order to affix said two ends of said elastic cable at said front side of said bow frame. 
     
     
         5 . The bow, as recited in  claim 4 , wherein each of said retaining slots has an outer narrowing portion extended from said respective end of said bow frame and an inner enlarged portion extended from said narrowing portion, wherein said narrowing portion of said retaining slot has a uniform width, wherein said enlarged portion of said retaining slot has a circular shape and has a diameter larger than said width of said narrowing portion and smaller than a width of said elastic cable, such that when said elastic cable is slid into said enlarged portion of said retaining slot through said narrowing portion thereof, said elastic cable is frictionally engaged with an inner curved surface of said enlarged portion of said retaining slot so as to frictionally retain said elastic cable at said respective end of said bow frame. 
     
     
         6 . The bow, as recited in  claim 3 , wherein said securing units has a plurality of securing slots spacedly formed at said front side of said bow frame, wherein each of said locking units comprises two tension adjusters selectively engaged with two of said securing slots and two cable lockers provided at said two ends of said elastic cable and detachably coupled with said two tension adjusters to selectively control said tension of said elastic cable between said two ends of said bow frame. 
     
     
         7 . The bow, as recited in  claim 1 , wherein said guidance unit comprises a tubular guiding barrel perpendicularly extended at the middle of said bow frame for slidably loading said arrow within said guiding barrel, wherein a rear end of said guiding barrel is rearwardly extended from said bow frame at said rear side thereof at a position that said rear end of said arrow is rearwardly extended out of said rear end of said guiding barrel to bias against said elastic cable. 
     
     
         8 . The bow, as recited in  claim 7 , wherein said bow frame has a center through slot formed at the middle of said bow frame, wherein said guiding barrel is slidably extended through said center through slot and is selectively adjusted a distance between said rear end of said guiding barrel and said elastic cable. 
     
     
         9 . The bow, as recited in  claim 1 , further comprising a handle, having a non-circular cross section, perpendicularly and downwardly extended from the middle of said bow frame to form a T-shaped configuration. 
     
     
         10 . The bow, as recited in  claim 9 , wherein said handle comprises an elongated palm gripping member and an elongated finger gripping member provided at a front side of said gripping member, wherein a width of said palm gripping member is larger than a width of said finger gripping member, wherein each of said palm gripping member and said finger gripping member has a non-circular cross section. 
     
     
         11 . The bow, as recited in  claim 10 , wherein said palm gripping member has a T-shaped configuration and defines two supporting surfaces. 
     
     
         12 . The bow, as recited in  claim 9 , further comprising a weighting member mounted on the middle of said bow frame on a top side thereof to align with said handle, wherein said weighting member has an aiming guide aligned with said guidance unit. 
     
     
         13 . The bow, as recited in  claim 1 , further comprising a handle, having a non-circular cross section, integrally extended from one of said ends of said bow frame along said longitudinal axis thereof to form an elongated configuration. 
     
     
         14 . The bow, as recited in  claim 13 , further comprising a weighting member mounted on another end of said bow frame to align with said handle. 
     
     
         15 . A bow-and-arrow apparatus, comprising:
 an arrow, which is a non fletching type arrow, having an elongated shaft and defining an arrow head and a rear end; and   a bow which comprises:   a rigid bow frame having two ends and defining a longitudinal axis between said two ends;   a tension unit which comprises an elastic cable extended between said ends of said bow frame, wherein said elastic cable is extended at a rear side of said bow frame along said longitudinal axis thereof; and   a guidance unit provided at a middle of said bow frame for setting said arrow at a position that said rear end of said arrow is biased against a middle of said elastic cable, wherein said elastic cable is drawn back to build tension thereof for shooting said arrow.   
     
     
         16 . The bow-and-arrow apparatus, as recited in  claim 15 , wherein said elastic cable has an elongated flat structure defining a flat surface for said rear end of said arrow biasing thereat. 
     
     
         17 . The bow-and-arrow apparatus, as recited in  claim 16 , wherein said tension unit further comprises a securing unit formed at a front side of said bow frame, and two locking units provided at two ends of said elastic cable to couple with said securing unit, such that said two ends of said elastic cable are extended and encircled at said two ends of said bow frame to affix at said front side of said bow frame. 
     
     
         18 . The bow-and-arrow apparatus, as recited in  claim 17 , wherein said tension unit further comprises a securing unit formed at a front side of said bow frame, and two locking units provided at two ends of said elastic cable to couple with said securing unit, such that said two ends of said elastic cable are extended and encircled at said two ends of said bow frame to affix at said front side of said bow frame. 
     
     
         19 . The bow-and-arrow apparatus, as recited in  claim 18 , wherein said bow frame further comprises two retaining slots formed at said two ends of said bow frame, wherein two end portions of said elastic cable are slid into said retaining slots respectively in order to affix said two ends of said elastic cable at said front side of said bow frame. 
     
     
         20 . The bow-and-arrow apparatus, as recited in  claim 19 , wherein said guidance unit comprises a tubular guiding barrel perpendicularly extended at the middle of said bow frame for slidably loading said arrow within said guiding barrel, wherein a rear end of said guiding barrel is rearwardly extended from said bow frame at said rear side thereof at a position that said rear end of said arrow is rearwardly extended out of said rear end of said guiding barrel to bias against said elastic cable. 
     
     
         21 . The bow-and-arrow apparatus, as recited in  claim 20 , wherein said bow frame has a center through slot formed at the middle of said bow frame, wherein said guiding barrel is slidably extended through said center through slot and is selectively adjusted a distance between said rear end of said guiding barrel and said elastic cable. 
     
     
         22 . The bow-and-arrow apparatus, as recited in  claim 21 , further comprising a handle, having a non-circular cross section, perpendicularly and downwardly extended from the middle of said bow frame to form a T-shaped configuration. 
     
     
         23 . The bow-and-arrow apparatus, as recited in  claim 22 , wherein said handle comprises an elongated palm gripping member and an elongated finger gripping member provided at a front side of said gripping member, wherein a width of said palm gripping member is larger than a width of said finger gripping member, wherein each of said palm gripping member and said finger gripping member has a non-circular cross section. 
     
     
         24 . The bow-and-arrow apparatus, as recited in  claim 23 , further comprising a weighting member mounted on the middle of said bow frame on a top side thereof to align with said handle, wherein said weighting member has an aiming guide aligned with said guidance unit.