Frame for polymeric pistol with metal rail

Abstract

The present invention is to provide a frame for a polymeric pistol with a metal rail, capable of securing the structural soundness of firearms to secure an accuracy rate of bullet even in high-temperature environments, preventing the high-temperature heat generated in a barrel or the like from being transferred, as it is, to a handle of the frame, and disassembling and replacing components as occasion demands. According to an aspect of the invention to achieve the object described above, there is provided a frame for a polymeric pistol with a metal rail, a pistol having a slide, the frame including: a lower frame made of a reinforced plastic material and having a handle formed at its lower portion; and an upper frame assembled onto the lower frame while being assembled to the slide and made of a metal material, wherein: the lower frame includes a first support positioned in front of the handle to support a bottom surface of the upper frame, and a second support positioned behind the handle to support a rear surface of the upper frame; and the upper frame is assembled to the lower frame such that the bottom and rear surfaces of the upper frame are supported by the first and second supports, and the upper frame has a front rail and a rear rail that are integrally formed on its upper surface, the front and rear rails being assembled to the slide.

1 . A frame for a polymeric pistol with a metal rail, a pistol having a slide ( 1 ), the frame comprising:
 a lower frame ( 10 ) made of a reinforced plastic material and having a handle ( 11 ) formed at its lower portion; and   an upper frame ( 20 ) assembled onto the lower frame ( 10 ) while being assembled to the slide ( 1 ) and made of a metal material, wherein:   the lower frame ( 10 ) comprises a first support ( 12 ) positioned in front of the handle ( 11 ) to support a bottom surface of the upper frame ( 20 ), and a second support ( 13 ) positioned behind the handle ( 11 ) to support a rear surface of the upper frame ( 20 ); and   the upper frame ( 20 ) is assembled to the lower frame ( 10 ) such that the bottom and rear surfaces of the upper frame ( 20 ) are supported by the first and second supports ( 12  and  13 ), and the upper frame ( 20 ) has a front rail ( 21 ) and a rear rail ( 22 ) that are integrally formed on its upper surface, the front and rear rails ( 21  and  22 ) being assembled to the slide ( 1 )   wherein   the second support ( 13 ) includes a seating portion ( 13 A) that has a horizontal plane to support the bottom surface of the upper frame ( 20 ),   the first support ( 12 ) includes an insertion hole ( 12 A) that is formed at one side thereof to have a predetermined depth, and   the upper frame ( 20 ) has a front fixed part ( 23 ) protruding formed at the bottom surface thereof and a rear fixed part ( 24 ) protruded from the bottom surface thereof,   wherein   the front fixed part ( 23 ) is inserted into the insertion hole ( 12 A),   the rear fixed part ( 24 ) is seated to the seating portion ( 13 A) and has a first pin coupling hole ( 24 C) formed through the side surface thereof, and   the second support ( 13 ) has second pin coupling holes ( 13 B) formed through the side surface thereof, and a fixing pin (P) is inserted into the second pin coupling holes ( 13 B) to fix the rear fixed part ( 24 ).   
     
     
         2 . The frame for a polymeric pistol with a metal rail as claimed in  claim 1 , wherein the upper frame ( 20 ) has a recoil spring installation part ( 26 ) formed in front of the front rail ( 21 ) and a trigger mechanism housing installation part ( 27 ) formed inside the rear rail ( 22 ). 
     
     
         3 . (canceled) 
     
     
         4 . The frame for a polymeric pistol with a metal rail as claimed in  claim 1 , wherein a pair of side fixing grooves ( 14 ) is formed to face each other along both sides of the lower frame ( 10 ) between the first support ( 12 ) and the second support ( 13 ) of the lower frame ( 10 ), and each of the side fixing grooves ( 14 ) has a length in forward and backward directions; and
 a pair of insertion protrusions ( 25 ) protrudes downward from the bottom surface of the upper frame ( 20 ) so that the insertion protrusions ( 25 ) are inserted into the side fixing grooves ( 14 ).   
     
     
         5 . The frame for a polymeric pistol with a metal rail as claimed in  claim 4 , wherein fitting protrusions ( 14 A) protrude from one ends of the pair of side fixing grooves ( 14 ), respectively; and
 fitting grooves ( 25 A) form at the bottom surface of the upper frame ( 20 ) such that the fitting protrusions ( 14 A) are inserted into the fitting grooves ( 25 A).   
     
     
         6 . The frame for a polymeric pistol with a metal rail as claimed in  claim 4 , wherein a side guide ( 14 B) is formed at a selected one of the pair of side fixing grooves ( 14 ), protrudes upward to be pressed against the outer surface of the upper frame ( 20 ), and serves to guide the position of the upper frame ( 20 ).