Gun attachment mounting structure

Abstract

A gun attachment mounting structure is disclosed to include a base member, which has a coupling groove for coupling to a top coupling bar of the gun body of a gun and locating holes extending from two opposite sides of said coupling portion, retaining members mounted in the base member, each retaining member having two springy clamping arms respectively inserted through the locating holes for clamping the top coupling bar to secure the base member to the gun body, and swivel locking control members respectively mounted in the base member and rotatable to lock the base member to the top coupling bar of the gun body after coupling of the coupling groove to the top coupling bar.

1 . A gun attachment mounting structure coupled to a top coupling bar of a gun body of a gun to carry an attachment, comprising:
 a base member, said base member comprising a coupling groove disposed at a bottom side thereof and coupled to the top coupling bar of said gun body, and a plurality of locating holes extending from two sides of said coupling groove; and   a plurality of retaining members mounted in said base member corresponding to said locating holes, said retaining members each comprising two springy clamping arms respectively inserted through said locating holes for clamping the top coupling bar of said gun body to secure said base member to the top coupling bar of said gun body after coupling of said coupling groove of said base member to the top coupling bar of said gun body.   
   
   
       2 . The gun attachment mounting structure as claimed in  claim 1 , wherein the coupling groove of said base member is a dovetail groove. 
   
   
       3 . The gun attachment mounting structure as claimed in  claim 1 , wherein the coupling groove of said base member has an I-shaped cross section. 
   
   
       4 . The gun attachment mounting structure as claimed in  claim 1 , wherein the coupling groove of said base member has an U-shaped cross section. 
   
   
       5 . The gun attachment mounting structure as claimed in  claim 1 , wherein the coupling groove of said base member has a U-shaped cross section. 
   
   
       6 . The gun attachment mounting structure as claimed in  claim 1 , wherein said base member comprises a plurality of through holes extending from said coupling groove to one lateral side thereof and a plurality of locating blocks respectively disposed adjacent to said through holes; swivel locking control members are respectively mounted in said locating blocks of said base member and movable in and out of said through holes of said base member for locking said base member to the top coupling bar of said gun body after coupling of the coupling groove of said base member to the top coupling bar of said gun body. 
   
   
       7 . The gun attachment mounting structure as claimed in  claim 1 , wherein said swivel locking control members each comprise a camshaft pivoted to said base member, an angled locking block extending from the periphery of said camshaft and insertable through one through hole of said base member into said coupling groove of said base member to lock said base member to the top coupling bar of said gun body, and a handle affixed to said camshaft and suspending outside said base member for operation by the user to move the associating angled locking block in and out of one through hole of said base member. 
   
   
       8 . The gun attachment mounting structure as claimed in  claim 1 , wherein said swivel locking control members each further comprise a spring member connected between the associating angled locking block and said base member to hold the associating angled locking block in the associating through hole of said base member. 
   
   
       9 . The gun attachment mounting structure as claimed in  claim 1 , wherein said base member further comprises a transverse locating block extending across said coupling groove for engaging in a transverse groove on the top coupling bar of said gun body.