초록 ▼

In a spray gun (1) for atomizing fluids, that can be actuated using a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12) and in which the air flow can be generated by an air turbine (5) that is assigned to the spray gun (1), the air turbine (5) a

In a spray gun (1) for atomizing fluids, that can be actuated using a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12) and in which the air flow can be generated by an air turbine (5) that is assigned to the spray gun (1), the air turbine (5) and its electric drive motor (4) are arranged substantially coaxially to the sleeve (11) on the opposite side of a handle (21) and the air flow is supplied from the air turbine (5) in a substantially straight line through the sleeve (11) of the atomizer nozzle (12). The air turbine (5) is provided with a muffler (6). Loud operating noise of the air turbine (5) does not have a disruptive effect and practically no flow noise is generated due to deflections of the air flow. The components of the spray gun (1) are arranged in such a way that no more than slight tilting torques are generated, permitting work over long periods without leading to fatigue.

대표청구항 ▼

What is claimed is: 1. A spray gun (1) for atomizing paints, lacquers or similar media (3) that can be supplied to a workpiece by means of an air flow, wherein the spray gun (1) is actuated by means of a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer no

What is claimed is: 1. A spray gun (1) for atomizing paints, lacquers or similar media (3) that can be supplied to a workpiece by means of an air flow, wherein the spray gun (1) is actuated by means of a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12), and the air flow is generated by an air turbine (5) assigned to the spray gun (1), wherein the air turbine (5) and an electric drive motor (4) are arranged substantially coaxially with the atomizer nozzle (12) of the spray gun (1) on a side of a handle (21) opposite to the sleeve (11) that carries the atomizer nozzle (12), so that the air flow from the air turbine (5) is supplied in a substantially straight line through the sleeve (11) of the atomizer nozzle (12), and wherein the air turbine (5) is provided with a muffler (6), and wherein a movement sequence of the lever (15) that actuates the spray gun (1) is adapted to operate a switch (22) associated with the drive motor (4) of the air turbine (5) and is influenced by the lever (15) in such a way that the drive motor (4) is switched on before the atomiser nozzle (12) opens and is switched off after the atomiser nozzle (12) closes. 2. The spray gun in accordance with claim 1, wherein the muffler (6), the air turbine (5) and the drive motor (4) are arranged axially one after the other in a direction of the air flow and are installed in an attachment (31) connected to the handle (21). 3. The spray gun in accordance with claim 2, wherein a cavity (7) is provided between the muffler (6) and the air turbine (5). 4. The spray gun in accordance with claim 2, wherein the attachment (31) that accommodates the muffler (6), the air turbine (5) and the drive motor (4), is arranged at an angle of from 0�� to 60��, in relation to a longitudinal axis of the sleeve (11) that carries the atomiser nozzle (12), opposite to the handle (21). 5. The spray gun in accordance with claim 2, wherein the drive motor (4) of the air turbine (5) is equipped with a jacket (32) that is closed in an axial direction and radially supported in the attachment (31). 6. The spray gun in accordance with claim 5, wherein the jacket (32) is connected to the sleeve (11) with a connection that is adapted to be separated. 7. The spray gun in accordance with claim 5, wherein a protective grille (33) is arranged between the drive motor (4) of the air turbine (5) and the sleeve (11), the protective grille (33) being supported in the jacket (32). 8. The spray gun in accordance with claim 1, characterised in that an end of the handle (21) is disposed in a same plane as a standing surface of a reservoir container (2) attached to the spray gun (1) and is formed as a stand foot (30). 9. The spray gun in accordance with claim 1, wherein the muffler (6) forms an end of the air turbine (5) and is disposed in the intake area of the air turbine. 10. A spray gun (1) for atomizing paints, lacquers or similar media (3) that can be supplied to a workpiece by means of an air flow, wherein the spray gun (1) is actuated by means of a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12) and the air flow is generated by an air turbine (5) assigned to the spray gun (1), wherein the air turbine (5) and an electric drive motor (4) are arranged substantially coaxially with the atomizer nozzle (12) of the spray gun (1) on a side of a handle (21) opposite to the sleeve (11) that carries the atomizer nozzle (12), so that the air flow from the air turbine (5) is supplied in a substantially straight line through the sleeve (11) of the atomizer nozzle (12), wherein the air turbine (5) is provided with a muffler (6), and wherein the muffler (6), the air turbine (5) and the drive motor (4) are arranged axially one after the other in a direction of the air flow and are installed in an attachment (31) connected to the handle (21); and wherein the drive motor (4) of the air turbine (5) is equipped with a jacket (32) that is closed in the axial direction and radially supported in the attachment (31); and wherein a protective grille (33) is arranged between the drive motor (4) of the air turbine (5) and the sleeve (11), the protective grille (33) being supported in the jacket (32); and wherein an end of the drive motor (4) of the air turbine (5) that faces away from the air turbine (5) is supported in the protective grille (33) which is manufactured from a vibration-damping material. 11. A spray gun (1) for atomizing paints, lacquers or similar media (3) that can be supplied to a workpiece by means of an air flow, wherein the spray gun (1) is actuated by means of a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12), and the air flow is generated by an air turbine (5) assigned to the spray gun (1), wherein the air turbine (5) and an electric drive motor (4) are arranged substantially coaxially with the atomizer nozzle (12) of the spray gun (1) on a side of a handle (21) opposite to the sleeve (11) that carries the atomizer nozzle (12), so that the air flow from the air turbine (5) is supplied in a substantially straight line through the sleeve (11) of the atomizer nozzle (12), and in that the air turbine (5) is provided with a muffler (6), and wherein the muffler (6), the air turbine (5) and the drive motor (4) are arranged axially one after the other in a direction of the air flow and are installed in an attachment (31) connected to the handle (21); and wherein the drive motor (4) of the air turbine (5) is equipped with a jacket (32) that is closed in the axial direction and radially supported in the attachment (31); and wherein at least one of the attachment (31) and the jacket (32) are directly formed onto the handle (21) and, with a separable connection, on the sleeve (11) that carries the atomiser nozzle (12) by means of a bayonet lock (19, 20). 12. The spray gun in accordance with claim 11, wherein a container cover (26) is formed onto the sleeve (11) and wherein the container cover (26) is provided with a holding element (27) in the form of a lug to engage a web (28) projecting from the handle (21), in order to lock the connection between the at least one of the attachment (31) and the jacket (32), and the sleeve (11). 13. A spray gun (1) for atomizing paints, lacquers or similar media (3) that can be supplied to a workpiece by means of an air flow, wherein the spray gun (1) is actuated by means of a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12), and the air flow is generated by an air turbine (5) assigned to the spray gun (1), wherein the air turbine (5) and an electric drive motor (4) are arranged substantially coaxially with the atomizer nozzle (12) of the spray gun (1) on a side of a handle (21) opposite to the sleeve (11) that carries the atomizer nozzle (12), so that the air flow from the air turbine (5) is supplied in a substantially straight line through the sleeve (11) of the atomizer nozzle (12), and wherein the air turbine (5) is provided with a muffler (6), and wherein the muffler (6), the air turbine (5) and the drive motor (4) are arranged axially one after the other in a direction of the air flow and are installed in an attachment (31) connected to the handle (21); and wherein the drive motor (4) of the air turbine (5) is equipped with a jacket (32) that is closed in the axial direction and radially supported in the attachment (31); and wherein a sound-absorbing insert (34) is arranged between the attachment (31) and the jacket (32) of the drive motor (4). 14. A spray gun (1) for atomizing paints, lacquers or similar media (3) that can be supplied to a workpiece by means of an air flow, wherein the spray gun (1) is actuated by means of a lever (15) mounted in a pivoting arrangement on a sleeve (11) which accommodates an atomizer nozzle (12), and the air flow is generated by an air turbine (5) assigned to the spray gun (1), wherein the air turbine (5) and an electric drive motor (4) are arranged substantially coaxially with the atomizer nozzle (12) of the spray gun (1) on a side of a handle (21) opposite to the sleeve (11) that carries the atomizer nozzle (12), so that the air flow from the air turbine (5) is supplied in a substantially straight line through the sleeve (11) of the atomizer nozzle (12), and in that the air turbine (5) is provided with a muffler (6), and wherein the muffler (6), the air turbine (5) and the drive motor (4) are arranged axially one after the other in a direction of the air flow and are installed in an attachment (31) connected to the handle (21); and wherein the muffler (6) of the spray gun (1) is provided with a spiral-shaped air duct (43) arranged in a housing (41) between an air inlet opening (44) and an air outlet opening (45), the air duct (43) being formed by two thin partition walls (47, 48) that extend in a spiral and are arranged at a lateral distance from one another on a selected one of a base (46) and a cover (42) of the housing (41) that is cylindrical in shape, and which project at right angles from the housing (41), the partition walls (47, 48) combining with the base (46) and the cover (42) to enclose a cross-sectional area (F), and wherein the air inlet opening (44) of the air guide duct (43) is disposed in a selected area of the outer wall of the housing (41) and the cover (42), in the form of slots, and wherein the air outlet opening (45) is arranged centrally in the housing (41) in the base (46) of the housing (41). 15. The spray gun in accordance with claim 14, wherein the air guide duct (43) comprises at least two sections (43a, 43b) mounted in a substantially mirror image arrangement to one another. 16. The spray gun in accordance with claim 15, wherein the two sections (43a, 43b) that form the air guide duct (43) are provided with a guide surface (49) in an area of the air outlet opening (45), the guide surface (49) being spatially curved. 17. The spray gun in accordance with claim 16, wherein the air guide duct sections (43a, 43b) in the area of the air outlet opening (45) are separated from one another by wall sections (51, 52) extending in an axial direction of the air guide duct (43). 18. The spray gun in accordance with claim 14, wherein a cross-sectional area (F, F1) of the air guide duct (43) is consistent along the length thereof. 19. The spray gun in accordance with claim 18, wherein when the base (46) and/or the cover (42) of the housing (41) are configured with a funnel shape, the distance between the two partition walls (47, 48) enclosing the air guide duct (43) is continuously changed in such a way that an enclosed cross-sectional area (F) of the air guide duct (43) is constant at all times. 20. The spray gun in accordance with claim 14, wherein in the housing (41) with a tapered base (46), the air outlet opening (45) is followed by an air distributor (50) in the form of a guide body with a tapered configuration. 21. The spray gun in accordance with claim 14, wherein selected ones of the housing (41), the cover (42), and the partition walls (47, 48) are formed of plastic. 22. The spray gun in accordance with claim 21, wherein the selected ones of the housing (41), the cover (42), and the partition walls (47, 48) are formed from a plastic which absorbs or reflects sound, the plastic incorporating selected ones of air bubbles and pores. 23. The spray gun in accordance with claim 21, wherein the selected ones of the housing (41), the cover (42), and the partition walls (47, 48) are provided with a coating (55) which absorbs and/or reflects sound. 24. The spray gun in accordance with claim 14, wherein the partition walls (47, 48) that form the air guide duct (43) are formed onto the base (46) of the housing (41) and a seal (56) is disposed between them and the cover (42), the seal (56) corresponding approximately to the inner jacket surface of the cover (42). 25. The spray gun in accordance with claim 14, wherein air inlet openings (35) are provided in the form of slots in the attachment (31) of the spray gun (1), the air inlet openings (35) being arranged offset at a selected one of 90�� and 180�� in the circumferential direction and/or axially displaced in relation to the air inlet openings (44) disposed in the housing (41) and/or the cover (42) of the muffler (6).