Gas supplying mechanism in a gas powered toy gun

Abstract

A gas supplying mechanism in a gas powered toy gun comprises a gas passage for supplying gas to be used for shooting a sham bullet put in a bullet holding chamber, a movable valve for controlling the gas passage to be open for supplying the gas and closed for ceasing to supply the gas selectively, a hammer operative selectively to rotate at high speed to a first position from a second position in response to a triggering operation performed for shooting the sham bullet and to rotate at low speed to the first position from the second position independently of the triggering operation, a positioning member provided to come into contact with the hammer put in the first position for positioning the same, and a movable linking member for moving in a first manner corresponding to the high speed rotation of the hammer to push the movable valve to move for shifting the gas passage to be open when the hammer rotates at the high speed and for moving in a second manner corresponding to the low speed rotation of the hammer to cause the movable valve to keep the gas passage closed without pushing the movable valve to move when the hammer rotates at the low speed.

1 . A gas supplying mechanism in a gas powered toy gun, which comprising; 
 a gas passage for supplying gas to be used for shooting a sham bullet put in a bullet holding chamber,    a movable valve for controlling the gas passage to be open for supplying the gas and closed for ceasing to supply the gas selectively,    a hammer operative selectively to rotate at high speed to a first position from a second position in response to a triggering operation performed for shooting the sham bullet and to rotate at low speed to the first position from the second position independently of the triggering operation,    a positioning member provided to come into contact with the hammer put in the first position for positioning the same, and    a movable linking member for moving in a first manner corresponding to the high speed rotation of the hammer to push the movable valve to move for shifting the gas passage to be open when the hammer rotates at the high speed and for moving in a second manner corresponding to the low speed rotation of the hammer to cause the movable valve to keep the gas passage closed without pushing the movable valve to move when the hammer rotates at the low speed.    
   
   
       2 . A gas supplying mechanism according to  claim 1 , wherein said hammer is rotated manually at the low speed.  
   
   
       3 . A gas supplying mechanism according to  claim 1 , wherein said positioning member is constituted with a rear end portion of a slider provided to be movable to the bullet holding chamber.  
   
   
       4 . A gas supplying mechanism according to  claim 1 , wherein said movable linking member is separately from the hammer to be able to engage with both of the hammer and the movable valve for engaging with a first portion of the hammer so as to push the movable valve to move when the hammer rotates at the high speed and for engaging with a second portion of the hammer so as not to push the movable valve to move when the hammer rotates at the low speed  
   
   
       5 . A gas supplying mechanism according to  claim 4 , wherein said first portion of the hammer is constituted with a knocking portion provided on the hammer for striking the movable linking member and said second portion of the hammer is constituted with an opening portion provided on the hammer for receiving the movable linking member coming thereinto.  
   
   
       6 . A gas supplying mechanism according to  claim 4 , wherein said movable linking member is positioned with an axis to be separated from the hammer and operative to rotate with the center of rotation on the axis and to move forward and backward with the guidance by the axis.  
   
   
       7 . A gas supplying mechanism according to  claim 1 , wherein said movable linking member is attached rotatably to the hammer to be forced to rotate in a predetermined direction by an energizing means provided on the hammer for engaging with the movable valve and operative to push the movable valve to move with a relatively small amount of rotation caused by the energizing means when the hammer rotates at the high speed and not to push the movable valve to move with a relatively large amount of rotation caused by the energizing means when the hammer rotates at the low speed.  
   
   
       8 . A gas supplying mechanism according to  claim 7 , wherein a fixed member is provided to be separated from the hammer and said movable linking member forced by the energizing means provided on the hammer comes into contact with the fixed member to be restrained from rotating.  
   
   
       9 . A gas supplying mechanism according to  claim 7 , wherein the energizing means provided on the hammer is constituted with a coil spring having one end portion thereof positioned by the hammer and another end portion thereof being in contact with the movable linking member.