Patent ID: 6230986
Filing Date: 2001-05-15
Classification: B05B

Abstract:
A spray head for a paint or lacquer sprayer, comprising:a body having a feed conduit fitted into said body, said body (1) comprises a surface (10) into which a sprayable substance issues from said feed conduit (7);a tubular spray nozzle (3) affixed to said body and fed with said substance to be sprayed from said feed conduit (7), said nozzle comprising a spray orifice (18) at one end thereof of which the opening and closing are controlled by a displaceable needle (16), said nozzle (3) comprises an annular surface (20) at a side opposite said spray orifice (18);a seal (2) placed between annular surface (20) and a free end (17) of said feed conduit (7);a gas-blowing cap-piece (5), anda gas distributing bush (4) fed with pressurized gas from at least one gas feed conduit (8,9) present in said body (1) for feeding gas to said cap-piece (5) in a homogeneous manner at the exit of said spray orifice (18), said gas distributing bush (4) comprises an end surface (21), and guides and keeps in place said nozzle (3); andclamping mechanisms (13,24) to simultaneously compress said end surface (21) of said distributing bush (4) and said surface (10) of said body (1) against each other, and to press said seal (2) between said annular surface (20) of said nozzle (3) and the free end (17) of said feed conduit (7).