Patent ID: 6311683
Filing Date: 2001-11-06
Classification: F41B

Abstract:
A device for assembling and disassembling a gas rifle and a gas tank to and from each other, respectively, the device comprising:a gas tank having a rear cap, the rear cap being formed with a fixing pin hole and having a one-touch type connection pipe, the one-touch type connection pipe having an inclined surface at a distal end thereof and a circumferential bearing groove, the rear cap further having an adjusting valve for adjusting a gas discharging amount of the gas tank;a gas discharging pipe having a fixing pin which is inserted into the fixing pin hole of the rear cap to prevent the gas tank from fluctuating;a fixed pipe secured to the gas discharging pipe and having a plurality of holes which are formed in a manner such that they are spaced apart one from another in a circumferential direction, the fixed pipe further having a plurality of balls which are fitted into the plurality of holes, respectively, the plurality of balls constituting a sliding ball bearing and being able to be moved between a retracted position and a projected position, the plurality of balls being engaged into the circumferential bearing groove of the one-touch type connection pipe at the retracted position and being disengaged from the circumferential bearing groove of the one-touch type connection pipe at the projected position;a control pipe for controlling the movement of the plurality of balls between the retracted position and the projected position, thereby to allow the gas tank to be assembled to the gas discharging pipe when the plurality of balls are in the retracted position and to be disassembled from the gas discharging pipe when the plurality of balls are in the projected position;a contact valve being brought into close contact with the inclined surface of the one-touch type connection pipe when the gas tank is assembled to the gas discharging pipe and being detached from the inclined surface of the one-touch type connection pipe when the gas tank is disassembled from the gas discharging pipe;a first spring for biasing forward the control pipe; anda second spring for biasing forward the fixed pipe.