Importance

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Abstract

A pulling mechanism of an adhesive-dispensing gun, comprising a gun barrel having a rear wall, a gun base, a trigger and a push rod, wherein a stopper plate is pivotably disposed in the gun base and formed with a hole through which the push rod extends, and wherein a push plate is disposed in the gun base and formed with a hole through which the push rod extends, a first and a second springs being fitted on the push rod on two sides of the stopper plate, one end of the first spring contacting the rear wall of the gun barrel for pushing the stopper plate, one end of the second spring being used to push the push plate, the lower end of the push plate being driven by the trigger to push the push rod forward, a torque spring being disposed on a pivot of the trigger to restore the trigger back to its home position and push the stopper plate out of the stopping position, whereby the push rod can be directly pulled back and once the trigger is released, the push rod is free from any pressure and no excessive adhesive will be dispensed.

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First Claim