Spray-ejecting device

Claim 1

A spray-ejecting device comprising: an elongated tubular structure of a hand supporting type having passageways therein for passing therethrough a spray material to be spray-ejected and having a forward end and a rear end; a nozzle rotatably mounted on the forward end of the tubular structure in a manner to communicate with the passageways in the tubular structure and to be rotatable so that the direction of the centerline thereof is angularly adjustable relative to the centerline of the tubular structure, said nozzle being operable to spray-eject said spray material; a valve mechanism for selectively shutting off and permitting supply of said spray material through the passageways of the tubular structure to the nozzle; valve control means mounted in the vicinity of the rear end of the tubular structure for controlling the operation of the valve mechanism; and adjustment means for rotating the nozzle relative to the tubular structure thereby to adjust the direction of spray-ejection from the nozzle, said adjustment means comprising a rotatable knob in the vicinity of the valve control means, a rotatable shaft having front and rear ends, said knob being fixed to the rear end of said rotatable shaft, said shaft extending forwardly from said knob substantially parallel to the tubular structure to a position in the vicinity of said nozzle, and rotating means coupled to the forward end of said rotatable shaft for displacing the nozzle in rotation thereby to adjust the direction of spray-ejection from the nozzle in accordance with the rotation of the rotatable shaft, said rotating means comprising a bevel gear fixedly mounted on the forward end of the rotatable shaft, a holding member unitarily holding the nozzle and pivotally supported by the tubular structure, and a rack part integrally mounted on the holding member and having a planar arcuate shape and a toothed face corresponding to a planar development of a bevel gear in mesh with said first mentioned bevel gear.