Patent ID: 8567379

Claim:
A firing linkage mechanism used in a toy submachine gun comprising a gun body, a magazine holder mounted in said gun body and holding a magazine, two sliding rails bilaterally mounted inside said gun body, each said sliding rail comprising a horizontal sliding rail portion and an oblique sliding rail portion obliquely downwardly extended from a rear end of said horizontal sliding rail portion, said firing linkage mechanism comprising a hammer, an air plug, a bolt and a counterweight set, said air plug being mounted in a top side inside said magazine holder and having a rear end thereof stopped against a firing pin, said bolt being mounted inside said gun body above said magazine holder and comprising a gas inlet at a bottom side thereof, said counterweight set being pivotally mounted at a rear side of said bolt, said hammer being adapted for striking said firing pin against said air plug to let a compressed gas flow out of said magazine into said gas inlet to move said bolt along said sliding rails for enabling said counterweight set to move downwardly along the oblique sliding rail portions of said sliding rails; wherein: said firing linkage mechanism further comprises a side frame bar, a link and a stop rod, said side frame bar being mounted at one side of said magazine holder, said link being pivotally coupled between said side frame bar and said firing pin and biasable forwardly following a forward displacement of said firing pin and said air plug upon striking of said hammer against said firing pin and forcible to return said firing pin and said air plug after the striking action of said hammer, said stop rod being adapted for engaging said link to hold said link, said firing pin and said air plug in position and to stop said link from returning said firing pin and said air plug after the striking action of said hammer, said stop rod being moved by said counterweight set to release said link for enabling said firing pin and said air plug to be returned to stop said compressed gas from flowing out of said magazine into said gas inlet when said counterweight set is moved along the oblique sliding rail portions of said sliding rails.