Paint gun having an integrated tool

Abstract

The invention relates to a paint gun (100) comprising: a paint gun body (10); a paint nozzle body (50) which can be detachably fixed to the paint gun body (10); and a trigger element (30) which is designed to be detachably connected to the paint gun body (10); wherein: the trigger element (30) has a tool inner contour (42); the paint nozzle body (50) has a workpiece outer contour (52) corresponding to the tool inner contour (42) of the trigger element (30); the trigger element (30) is designed to be removed from the paint gun body (10); and the tool inner contour (42) is designed to be brought into engagement with the workpiece outer contour (52) of the paint nozzle body (50) in such a way that the paint nozzle body (50) can be removed from the paint gun body (10) and / or the paint nozzle body (50) can be mounted on the paint gun body (10).

Description

[0001] Paint spray gun with integrated tool

[0002] The invention relates to a paint spray gun, an actuating bracket element for a paint spray gun having a paint spray gun body and a paint nozzle body, a use of an actuating bracket element with a tool inner contour for mounting and / or dismounting a paint nozzle body on and / or from a paint spray gun, a use of a paint nozzle body in a paint spray gun and a paint nozzle body for a paint spray gun.

[0003] Paint spray guns are generally known in the art and are used, for example, in automotive workshops for painting cars. Paint spray guns are used to atomize flowable material and apply it to a surface. The material to be applied can be either liquid or powder. The paint guns can be equipped with different paint nozzles. These paint nozzles can, in particular, have different opening diameters and / or different geometries, especially outlet geometries, in order to achieve different material throughputs and / or generate different spray shapes, for example.By changing from one paint nozzle with a specific diameter and / or geometry, especially the outlet geometry, to another with a different diameter and / or geometry, especially the outlet geometry, the material throughput and / or jet shape can be changed. These changes require special tools.

[0004] In this context, it has now become apparent that there is a further need to provide a paint spray gun, in particular there is a need to provide a paint spray gun with an efficient and cost-effective option for changing the paint nozzle.

[0005] These and other objects, which will be mentioned upon reading the following description or which may be recognized by a person skilled in the art, are achieved by the subject matter of the independent claims. The dependent claims develop the central idea of ​​the present invention in a particularly advantageous manner.

[0006] According to a first aspect of the present invention, a paint spray gun is provided, comprising: a paint spray gun body; a paint nozzle body that can be releasably secured to the paint spray gun body; an actuating bracket element that is configured to be releasably connected to the paint spray gun body; wherein the actuating bracket element has a tool inner contour; wherein the paint nozzle body has a workpiece outer contour that corresponds to the tool inner contour of the actuating bracket element; wherein the actuating bracket element is configured to be removed from the paint spray gun body; and wherein the tool inner contour is configured to be brought into engagement with the workpiece outer contour of the paint nozzle body such that the paint nozzle body can be disassembled from the paint spray gun body and / or the paint nozzle body can be mounted on the paint spray gun body.

[0007] According to a further aspect of the present invention, a paint nozzle body for a paint spray gun is provided, which has an outlet opening, wherein the paint nozzle body has a workpiece outer contour, wherein the workpiece outer contour has at least four, in particular six, indentations for receiving a tool.

[0008] The following statements can apply to the paint spray gun according to the invention and to the paint nozzle body according to the invention. The paint nozzle body according to the invention can be used in the paint spray gun according to the invention.

[0009] The term "paint spray gun" refers in particular to a hand-held paint application unit with a trigger handle for actuating one or more valves, which is / are configured to release a paint flow and optionally an air flow. The terms "paint gun", "paint nozzle" or other designations containing the terms "paint" or "color" are not to be understood as restricting these materials. The paint spray gun according to the invention can be used to spray, for example, paint, adhesive or varnish, in particular base and clear coat, both solvent-based and water-based, as well as liquids for the food industry, wood preservatives or other liquids. Hand-held paint guns are primarily used by tradespeople, in particular painters, carpenters and varnishers. However, it is certainly conceivable to integrate a hand-held spray gun into a painting robot or a painting machine.In particular, a paint gun according to the invention designed as a hand-held paint gun can be designed as a gravity-feed gun with a paint cup arranged above the paint gun body, from which the material to be sprayed flows into and through the paint channels essentially by gravity and by vacuum at the front end of the paint nozzle. The paint gun according to the invention can be a side-feed gun, in which the paint cup is arranged laterally on the paint gun body, and in which the material is also fed to the gun by gravity and by vacuum at the front end of the material nozzle. The paint gun according to the invention can be designed as a suction or suspended cup gun with a paint cup arranged below the paint gun body, from which the material to be sprayed is sucked out of the cup essentially by vacuum.The paint spray gun according to the invention can be designed as a pressure cup gun, in which the cup is arranged below, above, or to the side of the paint spray gun body and is pressurized, whereupon the material to be sprayed is forced out of the cup. The paint spray gun according to the invention can be a pressure gun, in which the material to be sprayed is fed to the spray gun via a hose from a paint container or via a pump. The paint spray gun according to the invention can be a low-pressure gun, in particular an HVLP gun, with an internal nozzle pressure of a maximum of 10 psi or 0.7 bar, whereby transfer rates of more than 65% are achieved. However, it can also be a compliant gun, which has an internal nozzle pressure of more than 10 psi or 0.7 bar, but likewise achieves a transfer rate of more than 65%.The paint gun according to the invention can be a compressed air atomizing paint gun. The paint gun according to the invention can be an air-assisted paint gun. The paint gun according to the invention can be an airless gun. The paint gun according to the invention can be a powder coating gun. The paint gun according to the invention can be an electrostatic gun. The paint gun according to the invention can be a rotary atomizer. The paint gun according to the invention can be a different type of paint gun.

[0010] The term "spray gun body" refers in particular to a housing designed to arrange the components of a spray gun relative to one another and to at least partially enclose them. The spray gun body in particular has a handle. The spray gun can have a compressed air connection, a paint needle, a trigger for opening an air valve and for moving the paint needle out of the outlet opening of the paint nozzle, a round-to-wide jet regulator for adjusting the ratio of atomizing air and horn air to shape the paint jet, an air micrometer for adjusting the spray pressure, a material flow regulator for adjusting the maximum material flow rate, a material connection, paint channels for directing the material to be sprayed from a material inlet to the material outlet opening, a suspension hook, and / or an analog or digital pressure measuring device.However, it can also have other components from the prior art. In or on the paint spray gun body, in particular a needle valve for applying paint and, if applicable, an air valve for releasing compressed air, a compressed air connection and a paint connection are arranged. Furthermore, in particular a paint nozzle body is arranged on the paint spray gun body. The paint spray gun body in particular has an interface for the paint nozzle body and the paint nozzle body a corresponding interface. The interfaces are in particular designed as threads. The paint spray gun body can be made of plastic or metal. The term “paint nozzle body” means in particular a nozzle (or paint nozzle) that is designed to apply paint with a specific spray pattern. The paint nozzle body in particular has an interface for mounting on the paint spray gun body.

[0011] The term "actuating bracket element" refers in particular to a structural element that is designed to be rotatably mounted on the paint spray gun body and to release the needle valve and, if applicable, the air valve by pressing the actuating bracket element, so that paint and / or compressed air flow through the paint nozzle body or through the air cap. The actuating bracket element is detachably connected to the paint spray gun body. The term "detachable" in this case means that the actuating bracket element can be mounted on and removed from the paint spray gun body. This can be done, for example, via a snap-in connection. The actuating bracket element can be mounted or removed without tools, for example. The actuating bracket element can be mounted or removed with a tool, for example. The actuating bracket element is preferably designed as a single-armed actuating bracket element.The actuating bracket element preferably has an actuating bracket element body with a finger rest, wherein a fastening arm preferably extends from only one side of the actuating bracket element body. This fastening arm is attached to one side of the paint gun body. However, the actuating bracket element can also be designed as a two-armed actuating bracket element, in which two fastening arms extend from two opposite sides of the actuating bracket element body, wherein both fastening arms are attached to opposite sides of the paint gun body. At least one arm can be detachably arranged on the actuating bracket element body.

[0012] The term “tool inner contour” refers in particular to a hollow body shape that is arranged in the actuating bracket element. The tool inner contour can, for example, be designed as a hexagon socket. The tool inner contour is not limited to the hexagon socket. The tool inner contour can be continuous, i.e., extend through the entire thickness of the actuating bracket element. Preferably, the tool inner contour is arranged in the form of a blind hole in the actuating bracket element. The side of the actuating bracket element facing away from the tool inner contour is preferably continuous at the level of the tool inner contour. This means that the user's fingers, which rest in this area when the paint spray gun is in operation, are not disturbed by a recess.

[0013] The term "workpiece outer contour" refers in particular to the surface of the paint nozzle body, in particular a peripheral surface, in particular a peripheral surface of a substantially cylindrical region of the paint nozzle body. The workpiece outer contour has a geometry that corresponds in particular to the tool inner contour. The workpiece outer contour is designed, for example, as an external hexagon. The workpiece outer contour is not limited to the external hexagon.

[0014] The term “engage” in this case means that the workpiece outer contour of the paint nozzle body is positively encompassed by the tool inner contour, so that a moment for assembly or disassembly on or from the paint spray gun body can be applied to the paint nozzle body.

[0015] The present invention is based on the finding that paint spray guns are operated with several different paint nozzle bodies. The paint nozzle bodies differ, for example, in the diameter of the nozzle opening and / or in their geometry, in particular the outlet geometry. The different paint nozzle bodies are normally removed from or mounted on the paint spray gun body using a special tool wrench. The invention now proposes integrating the tool for assembling / disassembling the paint nozzle body into the actuating bracket element of the paint spray gun. This ensures that the operator of the paint spray gun always has the tool for assembly and disassembly at hand. The actuating bracket element can be detached from the paint spray gun body, in particular via a snap-in connection, without the need for additional tools.The integration of the tool into the operating bracket element enables simple and efficient assembly and disassembly of the paint nozzle bodies. This can have a positive impact on the efficiency and productivity of the painting process.

[0016] According to one embodiment, the actuating bracket element has a finger support surface and the tool inner contour extends away from a side opposite the finger support surface.

[0017] The term “finger support surface” in this case refers to the point of application of the finger for actuating the actuating bracket element.

[0018] In this way, by arranging the tool's inner contour on the opposite side of the finger support surface, the finger support surface can be designed to be continuous and thus ergonomic. From an ergonomic point of view, this can have a positive effect on the actuation of the actuating bracket element for painting and / or on the assembly and disassembly of the paint nozzle body. According to one embodiment, the actuating bracket element has a first end and a second end, as well as a longitudinal extension length (L) between the first end and the second end, wherein the tool's inner contour is arranged at a distance of at least 25% of the longitudinal extension length (L) between both the first end and the second end of the actuating bracket element, in particular at a distance of at least 30% of the longitudinal extension length (L); in particular at least 40% of the longitudinal extension length (L).

[0019] In other words, the inner contour of the tool is located more in the middle area of ​​the actuating bracket element.

[0020] In this way, lower torques are exerted on the structure of the actuating bracket element during assembly and disassembly of the paint nozzle body. This allows for a lighter design of the actuating bracket element structure, as it is subject to lower loads. In particular, the tool's inner contour is positioned 50% of the longitudinal extension length (L) between the first and second ends of the actuating bracket element. In other words, the tool's inner contour is positioned exactly in the center. This can result in ergonomic advantages when applying a torque.

[0021] According to one embodiment, the tool inner contour has a non-circular, in particular a polygonal, in particular a regular polygonal inner contour, and the workpiece outer contour has a corresponding non-circular, in particular a polygonal, in particular a regular polygonal outer contour, wherein the inner contour and the corresponding outer contour are configured to be engaged. The non-circular outer structure has, for example, an external hexagon as its shape, and the non-circular inner structure has, for example, an internal hexagon as its shape.

[0022] According to one embodiment, the tool inner contour has a plurality of protrusions, and the workpiece outer contour has a corresponding plurality of indentations, wherein the protrusions and indentations are configured to engage with each other. The protrusions and indentations can be polygonal or curved. In particular, the protrusions and indentations are curved. In particular, a corresponding curvature has a constant radius.

[0023] This simplifies the production of the workpiece's outer contour and the tool's inner contour, as complex shapes no longer require drilling or milling. This applies particularly to the workpiece's outer contour, which is typically machined from a metal blank. This also applies to the tool's inner contour, which is preferably machined indirectly using a corresponding injection molding tool.

[0024] According to another embodiment, the workpiece outer contour has a plurality of protrusions, and the tool inner contour has a corresponding plurality of indentations, wherein the protrusions and indentations are configured to engage with each other. The protrusions and indentations can be polygonal or curved. In particular, the protrusions and indentations are curved. In particular, a corresponding curvature has a constant radius.

[0025] In particular, the number of bulges or indentations is at least four, in particular six.

[0026] With an increasing number of bulges or indentations, the area of ​​the intervention can be positively increased.

[0027] According to one embodiment, the plurality of protrusions is evenly distributed over a circumference of the tool inner contour, and the plurality of indentations is evenly distributed over a circumference of the workpiece outer contour, or the plurality of protrusions is evenly distributed over a circumference of the workpiece outer contour, and the plurality of indentations is evenly distributed over a circumference of the tool inner contour. For example, four indentations or protrusions are distributed at a 90° angular spacing over the circumference of the workpiece outer contour or tool inner contour. For example, six indentations or protrusions are distributed at a 60° angular spacing over the circumference of the workpiece outer contour or tool inner contour.

[0028] In this way, the even distribution of force allows it to be evenly distributed into the actuating bracket element, so that load peaks that could damage the structure can be avoided.

[0029] In one embodiment, the actuating bracket element has stiffening ribs which are connected to an outer region of the tool's inner contour.

[0030] This allows the actuating bracket element to be constructed using a lightweight design thanks to the stiffening ribs. This has a positive effect on weight while maintaining high rigidity.

[0031] In one embodiment, the actuating bracket element comprises an actuating bracket element body with which the tool's inner contour is formed as a single piece. In other words, the actuating bracket element body and the tool's inner contour are manufactured from a single piece (e.g., machined, cast, or molded). In particular, the actuating bracket element is manufactured by injection molding.

[0032] In this way, manufacturing costs can be reduced because no assembly steps are necessary.

[0033] In one embodiment, the actuating bracket element body formed integrally with the tool inner contour is made of plastic, in particular of fiber-reinforced plastic.

[0034] In this way, the use of plastic, especially fiber-reinforced plastic, can reduce weight, increase toughness and increase stability.

[0035] In one embodiment, the fiber-reinforced plastic is a polyamide with a fiber content of at least 50%, in particular a PA66.

[0036] In this way, by using polyamide with a fiber content of at least 50%, the weight can be reduced, the toughness increased and the stability increased.

[0037] In one embodiment, the paint spray gun body has a locking geometry and the actuating bracket element has a corresponding locking counter-geometry, wherein the locking geometry and the locking counter-geometry are designed for releasing and securing the actuating bracket element on the paint spray gun body. The locking geometry can be realized, for example, via a locking ring arranged in a bolt of the actuating bracket element. The bolt is arranged in the actuating bracket element and is designed to engage with a bore in the paint spray gun body. A sleeve, in particular a wear-reducing sleeve, can be arranged in the bore of the paint spray gun body. This sleeve can be designed in such a way orbe made of such a material that when the bolt of the actuating bracket element is mounted in the sleeve, less wear occurs than would be the case if the bolt of the actuating bracket element were mounted directly in the bore of the spray gun body.

[0038] In both cases, the actuating lever element is mounted rotatably within the spray gun body. This allows for quick assembly and disassembly of the actuating lever element from the spray gun body, allowing for a quick change of the paint nozzle body.

[0039] The sleeve can be arranged in the spray gun body so that it can rotate relative to the spray gun body, in particular by screwing or pressing it into the spray gun body. The bolt of the actuating bracket element can be mounted in the sleeve so that it can rotate about its longitudinal axis.

[0040] The indentations of the paint nozzle body can have a stop surface at the end facing away from the outlet opening of the paint nozzle body. This can serve as a stop for the tool used to mount and / or dismount the paint nozzle body on or from the spray gun body.

[0041] The paint nozzle body can have a first collar spaced radially from the outlet opening of the paint nozzle body. Alternatively or in addition to the aforementioned stop surface, the first collar can serve as a stop for the tool for mounting and / or dismounting the paint nozzle body on or from the spray gun body. Alternatively or additionally, the first collar can serve another purpose.

[0042] A first notch can be arranged radially between the outlet opening of the paint nozzle body and the first collar. This can be a type of trench, in particular a circumferential trench, or channel, in particular a circumferential channel, between the outlet opening and the first collar. The first notch can, for example, accommodate part of the tool for mounting and / or dismounting the paint nozzle body on or from the spray gun body. The first notch can additionally or alternatively serve another purpose.

[0043] The indentations can penetrate 50% to 90% of the first collar in the radial direction. This can mean that the indentations extend through 50% to 90% of the thickness of the first collar. This can ensure a secure hold for the tool for mounting and / or removing the paint nozzle body on or from the paint spray gun body. The paint nozzle body can have a second collar radially spaced from the first collar. The second collar can serve, in addition to or alternatively to the stop surfaces and / or the first collar, as a stop for the tool for mounting and / or removing the paint nozzle body on or from the paint spray gun body. The second collar can, for example, serve to seal between an atomizing air area and a shaping air area of ​​the paint spray gun.

[0044] A second notch can be arranged in the radial direction between the first collar and the second collar. This can be a type of trench, in particular a circumferential trench, or channel, in particular a circumferential channel, between the first collar and the second collar. The second notch can, for example, accommodate part of the tool for mounting and / or dismounting the paint nozzle body on or from the paint spray gun body. The second notch can additionally or alternatively have another purpose. Through-holes, in particular for air, in particular for atomizing air, can be introduced into the second notch.

[0045] The indentations preferably have a radius of 1 mm to 2 mm, in particular 1.5 mm, and a height of 0.5 mm to 1.2 mm, in particular 0.8 mm. The radius is in particular the base radius. The height is in particular the height of the indentations in the radial direction. The height is in particular the depth of the indentations, i.e. how deep the indentations extend in the radial direction into the paint nozzle body. This can ensure a secure hold for the tool for mounting and / or dismounting the paint nozzle body on or from the paint spray gun body.

[0046] A further aspect relates to an actuating bracket element for a paint gun having a paint gun body and a paint nozzle body, wherein the actuating bracket element is configured to be detached from the paint gun body; wherein the actuating bracket element has a tool inner contour configured to engage with a corresponding workpiece outer contour of the paint nozzle body, such that the paint nozzle body can be removed from the paint gun body and / or mounted on the paint gun body.

[0047] A further aspect relates to the use of an actuating bracket element with a tool-like inner contour for mounting and / or dismounting a paint nozzle body on and / or from a paint spray gun described in more detail above. A further aspect relates to the use of a paint nozzle body in a paint spray gun described in more detail above.

[0048] The features described above, including those from different embodiments, can also be combined with each other, resulting in synergistic interactions that go beyond the sum of the individual effects.

[0049] The invention is explained below using exemplary embodiments, which are described with reference to the following figures:

[0050] Figure 1 shows an exemplary paint spray gun according to the invention;

[0051] Figure 2 shows an exemplary actuating bracket element according to the invention; and

[0052] Figure 3 shows an exemplary paint nozzle body according to the invention.

[0053] Exemplary embodiments are described and explained below with reference to the figures listed above. Like reference symbols or analogous reference symbol structures refer to analogous or interacting components.

[0054] Figure 1 shows an exemplary paint spray gun 100 according to the invention. The paint spray gun 100 comprises a paint spray gun body 10. The paint spray gun body 10 is made of metal in the present case, but can also be made of plastic, and has a handle. In the present case, a needle valve for applying paint and an air valve for releasing compressed air, a compressed air connection, and a paint connection are arranged in the paint spray gun body 10. The paint spray gun 100 further comprises a paint nozzle body 50, which is not visible in Figure 1 because it is covered by an air cap and an air nozzle ring. The paint nozzle body 50 is detachably connected to the paint spray gun body 10 via a thread. The paint spray gun 100 further comprises an actuating bracket element 30. The actuating bracket element 30 is designed to be detachably connected to the paint spray gun body 10.For example, this detachable connection can be made possible via a plug-in or snap-in connection. The actuating bracket element 30 is rotatably mounted via a bolt in a bore in the paint gun body 10, wherein the bore may have a sleeve. By actuating the actuating bracket element 30, the needle valve for applying paint and the air valve for releasing compressed air are actuated. To do this, a user pulls the actuating bracket element 30 towards the paint gun body 10 with a finger on a finger support surface 41 of the actuating bracket element 30. Figure 2 shows an exemplary actuating bracket element 30 according to the invention. In the present case, the actuating bracket element 30 is made of plastic. The plastic can be a fiber-reinforced plastic. The plastic is, for example, a polyamide. The fiber content is, for example, 50%. In the present case, the actuating bracket element 30 has a tool inner contour 42.The tool inner contour 42 is designed to engage with a workpiece outer contour 52 of the paint nozzle body 50 so that the paint nozzle body 50 can be removed from the paint gun body 10 and / or mounted on the paint gun body 10. The tool inner contour 42 has a bore in this case. The tool inner contour 42 has five bulges 43 in this case. The five bulges 43 are evenly distributed over the circumference. The tool inner contour 42 is arranged on a side facing away from the finger support surface 41. The actuating bracket element 30 has a first end 31 and a second end 32. The distance between the first end 31 and the second end 32 defines a longitudinal extension length L. The tool inner contour 42 is arranged approximately 40% of the longitudinal extension length L from the first end 31 in this case. The length 46 corresponds to these 40% measured from the first end 31.The actuating bracket element 30 further comprises a bolt 34 with a locking counter-geometry 35. The bolt 34 is designed to be pushed into a bore (not shown) in the paint spray gun body 10 to enable rotatable mounting of the actuating bracket element 30. The locking counter-geometry 35 secures the bolt 34 against withdrawal. The locking counter-geometry 35 is designed as a retaining ring in the present case. The tool inner contour 42 and the actuating bracket element body 40 are formed as a single piece in the present case. The actuating bracket element 30 comprises stiffening ribs 45 that are connected to an outer region of the tool inner contour 42.

[0055] Figure 3 shows an exemplary paint nozzle body 50 according to the invention. The paint nozzle body 50 has a workpiece outer contour 52. The workpiece outer contour 52 is designed as a cylinder in this case. The workpiece outer contour 52 has five indentations 53 that are evenly distributed over the circumference. The workpiece outer contour 52 is designed to engage with the tool inner contour 42 so that the paint nozzle body 50 can be removed from the paint gun body 10 and / or mounted on the paint gun body 10. The paint nozzle body 50 has an outlet opening 54 for the outlet of the material to be sprayed. The indentations 53 have a stop surface 55 at their end facing away from the outlet opening 54 of the paint nozzle body 50. This can serve as a stop for the tool for mounting and / or dismounting the paint nozzle body 50 on or from the paint gun body 10.The paint nozzle body 50 has a first collar 56 radially spaced from the outlet opening 54 of the paint nozzle body 50. A first incision 57 is arranged in the radial direction between the outlet opening 54 of the paint nozzle body 50 and the first collar 56. In the present case, this is a type of circumferential trench between the outlet opening 54 and the first collar 56. The first incision 57 can, for example, accommodate part of the tool for mounting and / or dismounting the paint nozzle body 50 on or from the paint spray gun body 10. The first incision 57 can additionally or alternatively also have another purpose. The indentations 53 penetrate the first collar 56 in the radial direction by 50% to 90%. This means that the indentations 53 extend through 50% to 90% of the thickness of the first collar 56. This allows sufficient hold for the tool for assembling and / or disassembling the paint nozzle body 50 on orfrom the paint spray gun body 10. The paint nozzle body 50 has a second collar 58 radially spaced from the first collar 56. The second collar 58 can serve, in addition to or alternatively to the stop surfaces 55, as a stop for the tool for mounting and / or dismounting the paint nozzle body 50 on or from the paint spray gun body 10. The second collar 58 can serve, for example, to seal between an atomizing air region and a shaping air region of the paint spray gun. A second notch 59 can be arranged between the first collar 56 and the second collar 58. The second notch 59 can have through-bores 60, in particular for air, in particular for atomizing air.

[0056] Reference symbol

[0057] 10 spray gun bodies

[0058] 30 Actuating bracket element

[0059] 31 first end of the operating bracket

[0060] 32 second end of the operating bracket

[0061] 34 bolts

[0062] 35 Locking counter geometry on the actuating bracket

[0063] 40 Actuating bracket element body

[0064] 41 Finger rest of the operating bracket element

[0065] 42 Tool inner contour of the actuating bracket element

[0066] 43 Bulge on the tool inner contour

[0067] 45 stiffening ribs

[0068] 46 length

[0069] 50 paint nozzle bodies

[0070] 52 Workpiece outer contour of the paint nozzle body

[0071] 53 Indentation on the workpiece inner contour

[0072] 54 Outlet opening

[0073] 55 Stop surface

[0074] 56 first collar

[0075] 57 first incision

[0076] 58 second collar

[0077] 59 second incision

[0078] 60 through holes

[0079] 100 paint spray gun

[0080] L Longitudinal length of the actuating bracket body / actuating bracket element

Claims

Claims 1. A paint spray gun (100), comprising: a paint spray gun body (10); a paint nozzle body (50) that can be releasably secured to the paint spray gun body (10); an actuating bracket element (30) that is designed to be releasably connected to the paint spray gun body (10); wherein the actuating bracket element (30) has a tool inner contour (42); wherein the paint nozzle body (50) has a workpiece outer contour (52) corresponding to the tool inner contour (42) of the actuating bracket element (30); wherein the actuating bracket element (30) is designed to be removed from the paint spray gun body (10); and wherein the tool inner contour (42) is configured to be brought into engagement with the workpiece outer contour (52) of the paint nozzle body (50) in such a way that the paint nozzle body (50) can be disassembled from the paint gun body (10) and / or the paint nozzle body (50) can be mounted on the paint gun body (10).

2. Paint spray gun (100) according to claim 1, wherein the actuating bracket element (30) has a finger support surface (41) and the tool inner contour (42) extends away from a side opposite the finger support surface (41).

3. Paint spray gun (100) according to one of the preceding claims, wherein the actuating bracket element (30) has a first end (31) and a second end (32), and a longitudinal extension length (L) between the first end (31) and the second end (32), and the tool inner contour (42) is arranged at least 25% of the longitudinal extension length (L) away from both the first end (31) and the second end (32) of the actuating bracket element (30), in particular at least 30% of the longitudinal extension length (L); in particular at least 40% of the longitudinal extension length (L).

4. Paint spray gun (100) according to one of the preceding claims, wherein the tool inner contour (42) has a non-circular, in particular a polygonal, in particular a regular polygonal inner contour and the workpiece outer contour (52) has a corresponding non-circular, in particular a polygonal, in particular a regular polygonal outer contour, wherein the inner contour and the corresponding outer contour are arranged to be brought into engagement.

5. Paint spray gun (100) according to one of the preceding claims, wherein the tool inner contour (42) has a plurality of protrusions (43) and the workpiece outer contour (52) has a corresponding plurality of indentations (53), wherein the protrusions (43) and the indentations (53) are arranged to be engaged.

6. Paint spray gun (100) according to claim 5, wherein the number of bulges (43) or indentations (53) is at least four, in particular six.

7. Paint spray gun (100) according to one of claims 5 and 6, wherein the plurality of bulges (43) is evenly distributed over a circumference of the tool inner contour (42) and the plurality of indentations (53) is evenly distributed over a circumference of the workpiece outer contour (52).

8. Paint spray gun (100) according to one of the preceding claims, wherein the actuating bracket element (30) has stiffening ribs (45) which are connected to an outer region of the tool inner contour (42).

9. Paint spray gun (100) according to one of the preceding claims, wherein the actuating bracket element (30) has an actuating bracket element body (40) with which the tool inner contour (42) is integrally formed in one piece.

10. Paint spray gun (100) according to claim 9, wherein the actuating bracket element body (40) formed integrally with the tool inner contour (42) consists of plastic, in particular of fiber-reinforced plastic.

11. Paint spray gun (100) according to claim 10, wherein the fiber-reinforced plastic is a polyamide with a fiber content of at least 50%, in particular a PA66.

12. Paint spray gun (100) according to one of the preceding claims, wherein the paint spray gun body (10) has a locking geometry and the actuating bracket element (30) has a corresponding locking counter-geometry (35), wherein the locking geometry and the locking counter-geometry (35) are designed for releasing and fixing the actuating bracket element (30) on the paint spray gun body (10).

13. Actuating bracket element (30) for a paint gun (100) having a paint gun body (10) and a paint nozzle body (50), wherein the actuating bracket element (30) is configured to be detached from the paint spray gun body (10); wherein the actuating bracket element (30) has a tool inner contour (42) configured to be brought into engagement with a corresponding workpiece outer contour (52) of the paint nozzle body (50), such that the paint nozzle body (50) can be removed from the paint spray gun body (10) and / or mounted on the paint spray gun body (10).

14. Use of an actuating bracket element (30) with a tool inner contour (42) for mounting and / or dismounting a paint nozzle body (50) on and / or from a paint spray gun (100) according to one of claims 1 to 12.

15. Use of a paint nozzle body (50) in a paint spray gun (100) according to one of claims 1 to 12.

16. Paint nozzle body (50) for a paint spray gun (100), comprising an outlet opening (54), wherein the paint nozzle body (50) has a workpiece outer contour (52), wherein the workpiece outer contour (52) has at least four, in particular six, indentations (53) for receiving a tool.

17. Paint nozzle body (50) according to claim 16, wherein the indentations (53) have a stop surface (55) at their end facing away from the outlet opening (54) of the paint nozzle body (50).

18. Paint nozzle body (50) according to claim 16 or 17, wherein the paint nozzle body (50) has a first collar (56) radially spaced from the outlet opening (54) of the paint nozzle body (50).

19. Paint nozzle body (50) according to claim 18, wherein the paint nozzle body (50) has a first notch (57) arranged in the radial direction between the outlet opening (54) of the paint nozzle body (50) and the first collar (56).

20. Paint nozzle body (50) according to claim 18 or 19, wherein the indentations (53) penetrate the first collar (56) in the radial direction by 50% to 90%.

21. Paint nozzle body (50) according to one of claims 18 to 20, wherein the paint nozzle body (50) has a second collar (58) radially spaced from the first collar (56).

22. Paint nozzle body (50) according to claim 21, wherein the paint nozzle body (50) has a radially arranged between the first collar (56) and the second collar (58) second incision (59).

23. Paint nozzle body (50) according to one of claims 16 to 22, wherein the indentations (53) have a radius of 1 mm to 2 mm, in particular 1.5 mm, and a height of 0.5 mm to 1.2 mm, in particular 0.8 mm.

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