In a spray gun (1) for spraying paint with a gun housing (2) provided with a handle (3) with a union nut (10) screwed onto it that holds an air cap (11) provided with offset outlet openings (14, 15) for compressed air, the union nut (10) is positively connected to the air cap (11) in a circumferenti
In a spray gun (1) for spraying paint with a gun housing (2) provided with a handle (3) with a union nut (10) screwed onto it that holds an air cap (11) provided with offset outlet openings (14, 15) for compressed air, the union nut (10) is positively connected to the air cap (11) in a circumferential direction. This embodiment makes it possible for the spray jet to be set in a brief time and without difficulties without having to put up with getting dirty. It is merely necessary to turn the union nut (10) accordingly in order to control the air supply to the outlet openings (14, 15) of the air cap (11) and therefore to influence the formation of the spray jet.
대표청구항▼
The invention claimed is: 1. A spray gun (1) for spraying paints and viscous media that can be propelled pneumatically or electrically, the spray gun comprising: a housing (2) for accommodating a propulsion mechanism and components that effect mixture and metering; a handle (3) projecting from said
The invention claimed is: 1. A spray gun (1) for spraying paints and viscous media that can be propelled pneumatically or electrically, the spray gun comprising: a housing (2) for accommodating a propulsion mechanism and components that effect mixture and metering; a handle (3) projecting from said gun housing (2); and a reservoir tank (4) removably attached to said gun housing (2) for holding a medium to be processed; a union nut (10) placed on said gun housing (2); and an extension pipe and an air cap (11) surrounded by said union nut (10) provided with mutually offset outlet openings (14,15) for compressed air by means of which various spray jets (I, II, III) are formed and with an atomiser nozzle (5) held in an oriented position and opened by means of a nozzle needle (16); wherein a selected one of said union nut (10) and a holding element (31) is connected with said air cap (11, 32) circumferentially; and wherein the holding element (31) is lockable in angular positions corresponding to the spray jets (I, II, III) and is disposed in an oriented position in relation to said gun housing (2); and wherein a selected one of the gun housing (2), and the holding element (31) is provided with two diametrically opposed control cams (35, 35', 35", 35'") that are open at one end and run in a circumferential direction, and the holding element (31) is provided with guide elements (36, 36', 36", 36'") that engage in the control cams (35, 35', 35", 35'"). 2. The spray gun in accordance with claim 1, wherein said air cap (11) is connected to said union nut (10) or holding element (31) by at least one radial cam (22) projecting from an outer jacket surface of said air cap (11) and distributed evenly around the circumference thereof, with the cams (22) engaging in slots (23) in said union nut (10) or holding element (31). 3. The spray gun in accordance with claim 2, wherein said air cap (11) is disposed in a ring (21) and connected to the ring (21), with the cams (22) projecting radially from the ring (21) and engaging in slots in said union nut (10) or the holding element (31). 4. The spray gun in accordance with claim 1, wherein the guide elements (36, 36') comprise guide pins (37) and the control cams (35, 35') comprise recesses (a, b, c) for accommodating said guide pins (37) in the operating positions corresponding to said air cap (32). 5. The spray gun in accordance with claim 1, wherein the guide elements (36", 36'") comprise radially sprung tabs (38) and the control cams (35", 35'") are provided with detent cams (39) distributed in a circumferential direction with even spacing, between which said tabs (38) are lockable in the operating positions corresponding to said air cap (32). 6. The spray gun in accordance with claim 1, wherein said air cap (32) is structurally separate from the holding element (31), and a spring (41) is arranged therebetween, by means of which said air cap (32) can be pressed against a selected one of the atomiser nozzle (5), an intermediate piece, and an extension pipe. 7. The spray gun in accordance with claim 1, wherein said air cap (32) is sealed against said gun housing or other supporting component by a labyrinth seal (42). 8. The spray gun (1) in accordance with claim 1, wherein the air cap (11, 32) and said union nut (10) and the holding element (31) comprises an injection-moulded unitary component; and wherein the union nut and holding element are turnable by one hand of an operator to provide for a selected formation of spray while the spray gun is in operation.
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