Crossbow

Abstract

A crossbow has a body and a bow. The body has a mounting recess and a percussion device. The percussion device is mounted in the mounting recess and has an outer casing, a safety device and a trigger. The outer casing is mounted in the mounting recess and has an arrow groove, a holding frame and a limiting block. The arrow groove is formed through the outer casing and extends out of the body. The holding frame is connected to the outer casing. The limiting block is connected to the outer casing. The safety device is connected to the outer casing and has a moving mount and a safety catch. The moving mount is mounted in the outer casing. The safety catch is connected to the moving mount. The trigger is connected to the outer casing. The bow is mounted on the body and has two limbs and a string.

What is claimed is: 
     
         1 . A crossbow comprising
 a body having
 a front end; 
 a rear end; 
 a stock formed on the rear end of the body; 
 a mounting recess formed through the body near the stock; and 
 a percussion device securely mounted in the mounting recess of the body and having
 an outer casing securely mounted in the mounting recess of the body and having
 a front side; 
 a rear side; 
 a top; 
 a bottom; 
 two sidewalls; 
 an arrow groove transversally formed through the front side of the outer casing at a position extending out of the body; 
 a holding frame pivotally connected to the front side of the outer casing, extending into the arrow groove and having 
 a top end extending backward into the arrow groove of the outer casing; and 
 a rear side; and 
 
 a limiting block pivotally connected to the top of the outer casing in the arrow groove over the top end of the holding frame and having
 a front end pivotally connected to top of the outer casing; 
 a rear end; 
 a bottom surface; and 
 a top surface; 
 
 
 a safety device movably connected to the outer casing behind the arrow groove and having
 a moving mount movably mounted in the outer casing behind the arrow groove and having
 a front end selectively abutting the rear end of the limiting block; 
 a rear end; 
 a top surface; 
 a bottom surface; and 
 two opposite sides; and 
 a safety catch securely and transversally connected to the front end of the moving mount and having two ends respectively extended out of the arrow groove of the outer casing; and 
 
 a trigger pivotally connected to the outer casing below the safety device and having
 a top end abutting the bottom surface of the moving mount; 
 a bottom end extending out of the body via the bottom of the outer casing; and 
 a front side mounted in the outer casing and selectively abutting the rear side of the holding frame; and 
 
 
   a bow mounted on the front end of the body and having two limbs connected to the front end of the body and each limb having a distal end; and
 a string extending between the distal ends of the limbs. 
   
     
     
         2 . The crossbow as claimed in  claim 1 , wherein the limiting block has an abutting bar transversally formed on and protruding from the bottom surface of the limiting block at the front end of the limiting block; and
 a pressing spring mounted on the top of the outer casing and pressing against the rear end of the limiting block to make the rear end of the limiting block extend into the arrow groove.   
     
     
         3 . The crossbow as claimed in  claim 2 , wherein the holding frame has at least one torsional spring connected to the front side of the outer casing at a position ahead of the holding frame and pressing against the holding frame to make the top end of the holding frame extend backward into the arrow groove. 
     
     
         4 . The crossbow as claimed in  claim 3 , wherein
 the moving mount has two positioning recesses formed on the top surface of the moving mount at an interval; and   the outer casing has a positioning assembly movably mounted in the outer casing and having
 a positioning spring mounted in the top of the outer casing near the rear side of the outer casing; and 
 a ball pressed by the positioning spring in the outer casing and selectively engaging one of the positioning recesses of the moving mount. 
   
     
     
         5 . The crossbow as claimed in  claim 4 , wherein the moving mount has
 an elongated groove transversally formed through the opposite sides of the moving mount between the front end and the rear end of the moving mount; and   multiple guiding rods transversally connected to the sidewalls of the outer casing and are mounted in the elongated groove of the moving mount.   
     
     
         6 . The crossbow as claimed in  claim 1 , wherein
 the moving mount has two positioning recesses formed on the top surface of the moving mount at an interval; and   the outer casing has a positioning assembly movably mounted in the outer casing and having
 a positioning spring mounted in the top of the outer casing near the rear side of the outer casing; and 
 a ball pressed by the positioning spring in the outer casing and selectively abutting one of the positioning recesses of the moving mount. 
   
     
     
         7 . The crossbow as claimed in  claim 1 , wherein the moving mount has
 an elongated groove transversally formed through the opposite sides of the moving mount between the front end and the rear end of the moving mount; and   multiple guiding rods transversally connected to the sidewalls of the outer casing and are mounted in the elongated groove of the moving mount.   
     
     
         8 . The crossbow as claimed in  claim 1 , wherein the holding frame has at least one torsional spring connected to the front side of the outer casing ahead the holding frame and pressed against the holding frame to allow the top end of the holding frame extend backward into the arrow groove. 
     
     
         9 . The crossbow as claimed in  claim 8 , wherein
 the moving mount has two positioning recesses formed on the top surface of the moving mount at an interval; and   the outer casing has a positioning assembly movably mounted in the outer casing and having   a positioning spring mounted in the top of the outer casing near the rear side of the outer casing; and   a ball pressed by the positioning spring in the outer casing and selectively abutting one of the positioning recesses of the moving mount.   
     
     
         10 . The crossbow as claimed in  claim 9 , wherein the moving mount has
 an elongated groove transversally formed through the opposite sides of the moving mount between the front end and the rear end of the moving mount; and   multiple guiding rods transversally connected to the sidewalls of the outer casing and are mounted in the elongated groove of the moving mount.