SEALER GUN

摘要

[PROBLEMS] To enable even a less-skilled person to set the width of a bead to a desired width and apply a sealer easily, and to enable even and uniform sealer application from the initial stage to final stage of sealer discharge [MEANS FOR SOLVING PROBLEMS] A sealer gun (1) for discharging a sealer from a gap between a valve seat (11) and a needle valve (8) by operating a trigger (16) to cause the needle valve (8) to recede for a predetermined stroke. The position adjusting member (20) is made to proceed and recede by operating an adjusting knob (24) of a notch section (3) provided on the base end section of a gun body (2), restricting a receding stroke of the needle valve (8). Further, a tapered section (8b) tapering toward the head end and having a length greater than the magnitude of the receding stroke is formed on the head end of the needle valve (8). Also, an orifice member (15) is provided in a sealer discharge path nearer to the downstream side than the valve seat (11), and this absorbs pulsation of a sealer discharge pressure.