Automatic-manual fluid sprayer

Abstract

A spray gun (12) is configured to emit spray fluid for application on a substrate. The spray gun (12) includes a spray valve that controls emission of the spray fluid. A trigger (28) is connected to the spray gun (12) and is configured to be manually actuated to open the spray valve. An automatic actuator (30) is connected to the spray gun (12) and is configured to receive driving fluid to displace the spray valve open. The spray gun (12) is mountable to and dismountable from an automatic applicator (14) for automatic spray operations. The spray gun (12) is operable in a manual spray mode and in an automatic spray mode.

Description

[0001] G0372-P15983US01-2753US1

[0002] AUTOMATIC-MANUAL FLUID SPRAYER

[0003] CROSS-REFERENCE TO RELATED APPICATION(S) This application claims priority to U.S. Provisional Application No.

[0004] 63 / 745,154 filed January 14, 2025 and entitled “AUTOMATIC-MANUAL FLUID SPRAYER,” the disclosure of which is hereby incorporated by reference in its entirety.

[0005] BACKGROUND

[0006] This disclosure relates to spray systems. More specifically, this disclosure relates to spray guns and components thereof for use in spray systems.

[0007] Spray guns can be used to spray fluids on surfaces. For example, spray guns can be used to spray a liquid such as paint, lacquer, finishes, and other coatings on furniture, cabinets, appliances, equipment, fabricated components, etc.

[0008] Some spray guns utilize compressed gas, such as compressed air, to atomize the spray fluid into a desired spray pattern. Typically, the spray fluid is placed under pressure by a piston, diaphragm, or other positive displacement pump. The pump outputs the spray fluid under pressure to the spray gun, such as through a direct connection or through a flexible hose. The spray gun is used to dispense the spray fluid. The spray gun can be attached to the end of the hose opposite the pump. In this way, the spray gun does not include a pump, but rather releases spray fluid pumped to the spray gun through the hose. The spray gun atomizes the spray fluid under pressure into a spray pattern, which is applied to a surface.

[0009] Spray guns can be operated manually or automatically. Manual spray guns are grasped by a user and actuated to spray by the user. The user actuates a trigger to open a valve and emit the spray fluid from the spray gun. Automatic spray guns are supported by a robotic arm or other carriage that can reposition and aim the spray gun. Automatic spray guns are typically actuated by compressed gas to cause emission of the spray fluid.

[0010] SUMMARY

[0011] According to an aspect of the present disclosure, a spray gun includes a gun body having a handle; a spray valve supported by the gun body, the spray valve formed between a needle and a valve seat, the needle movable along an axis relative to the valve seat; a trigger supported by the gun body, the trigger configured to actuate the spray valve from a closed state to an open state; and an automatic actuator mounted to the gun body. The automatic actuator includes an actuator body extending rearward from a rear side ofthe gun body and a displacer at least partially disposed within the actuator housing, the displacer coupled to the needle such that the needle and the displacer displace together. The spray gun is operable in a manual spray mode and an automatic spray mode, the trigger configured to displace the needle to open the spray valve in the manual spray mode, and the automatic actuator configured to displace the needle to open the spray valve in the automatic spray mode.

[0012] According to an additional or alternative aspect of the present disclosure, a spray system includes a gun mount comprising a mount body having an actuation passage formed therein; and a spray gun configured to output spray fluid along a spray axis. The spray gun includes a gun body having a handle; a spray valve supported by the gun body, the spray valve formed between a needle and a spray seat, the needle extending along a spray axis; a trigger supported by the gun body, the trigger configured to actuate the spray valve from a closed state to an open state; and an automatic actuator mounted to the gun body. The automatic actuator includes an actuator body extending rearward from a rear side of the gun body; and a displacer at least partially disposed within the actuator housing, the displacer coupled to the needle such that the needle and the displacer displace together. The spray gun is mountable to and dismountable from the gun mount, the automatic actuator fluidly coupled to the actuation passage to receive driving fluid from the actuation passage with the spray gun mounted to the gun mount.

[0013] According to another additional or alternative aspect of the present disclosure, a method of spraying a spray fluid includes pulling a trigger of a spray gun to open a spray valve and cause the spray gun to emit the spray fluid; releasing the trigger to closed the spray valve and stop emission of the spray fluid; engaging an automatic actuator mounted to a gun body of the spray gun with a gun mount to mount the spray gun to the gun mount; and opening the spray valve with the automatic actuator to cause the spray gun to emit the spray fluid.

[0014] BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric view of a spray system.

[0015] FIG. 2A is an enlarged view of detail 2 in FIG. 1 showing a spray gun mounted to a robotic applicator.

[0016] FIG. 2B is an isometric view similar to FIG. 2A showing the spray gun dismounted.

[0017] FIG. 3A is a cross-sectional view taken along line 3-3 in FIG. 2A.

[0018] FIG. 3B is an enlarged view of detail B in FIG. 3A.FIG. 3C is an enlarged view of detail C in FIG. 3A.

[0019] FIG. 4A is an enlarged cross-sectional view showing a portion of the spray gun.

[0020] FIG. 4B is an enlarged cross-sectional view showing a portion of the spray gun.

[0021] FIG. 5A is an isometric view of a mount adaptor for a gun mount.

[0022] FIG. 5B is a cross-sectional view taken along line B-B in FIG. 5A.

[0023] DETAILED DESCRIPTION

[0024] This disclosure relates to fluid spraying. More specifically, the present disclosure is directed to spray guns for fluid spraying. Spray guns according to aspects of the disclosure are configured for hybrid operation. The spray guns can be activated manually, such as by a user, or automatically, such as by a robotic sprayer. The spray gun can be accessed by a user and the user can grasp the spray gun by a handle and cause spraying by actuation of a manual actuator of the spray gun, such as a trigger among other options. The spray gun can also be mounted to a robotic sprayer and can be caused to spray by actuation of an automatic actuator of the spray gun, such as a pressure actuated piston among other options.

[0025] Spray guns according to the disclosure are configured to emit a spray of spray fluid, such as liquid paints, varnishes, lacquers, fine finishes, high-gloss finishes, waterborne coatings, solvent-borne coatings, etc. The spray gun can be used to apply coatings to surfaces, furniture, cabinets, appliances, equipment, fabricated components, etc., among other options.

[0026] According to some aspects of the disclosure, the spray gun can also emit compressed gas. An atomization portion of the compressed gas is configured to atomize spray fluid and complete the atomization of the fan tails, preventing undesired tailing. A shaping portion of the compressed gas is configured to shape the spray pattern. The spray fluid is emitted through a nozzle orifice. In examples including compressed gas, the compressed gas is emitted through an air cap surrounding the orifice. The atomization gas is emitted with each actuation of the spray gun to a spray state while the fan gas can be set between no fan gas and a maximum flow.

[0027] According to aspects of the disclosure, the spray gun is mountable to a robotic applicator at a mount interface. The mount interface statically connects the spray gun to the robotic applicator. The spray gun is fixed to the robotic applicator by the static applicator. The spray gun is structurally supported by the robotic applicator by the staticinterface. The mount interface also dynamically connects the spray gun to the robotic sprayer. The dynamic connection is a driving connection that can actuate valving of the spray gun to cause spraying by the spray gun. In various examples, the dynamic connection is a fluid connection such that the spray gun can be fluidically actuated to emit the spray fluid.

[0028] According to various aspects of the disclosure, the spray gun is mountable to the robotic applicator by a quick connect interface. The spray gun can mount to a carriage of the robotic applicator, which carriage can be an arm of the robotic applicator among other options, by shifting linearly relative to the carriage. The relative linear shifting of the spray gun can, in some examples, form both the static structural connection with the spray gun and the dynamic driving connection.

[0029] A gun mount is connected to the carriage and is configured to interface with the spray gun. The static and driving interfaces can be formed between the gun mount and the spray gun. In some examples, the spray gun can be locked to the gun mount. The spray gun is fixed to the carriage with the static interface formed and the gun mount in the locked state, fhe spray gun can be removed from the camage or mounted to the carriage with the gun mount in the unlocked state. In various examples, the gun mount is actuatable between the locked and unlocked states by a single motion. For example, a single actuation can place the gun mount in either the locked or unlocked state. In some examples, the single actuation can be a linear actuation. For example, the single actuation can be linear actuation of a lock sleeve of the gun mount.

[0030] Spray guns according to aspects of the disclosure include a spray valve that controls emission of spray fluid from the spray gun. The spray valve is actuatable between an open state, in which the spray fluid is emitted from the spray gun, and a closed state, in which the spray fluid is prevented from being emitted from the spray gun. The spray valve is connected to multiple actuators such that the spray valve can be actuated to the open state by any one of the multiple actuators. A manual actuator, such as a trigger, is connected to a movable valving component of the spray valve. The manual actuator is connected to the movable valving component such that the manual actuator can displace the movable valving component away from a seat of the spray valve to place the spray valve in the open state. An automatic actuator is connected to the movable valving component of the spray valve. The automatic actuator is connected to the movable valving component such that the automatic actuator can displace the movable valving component away from the seat of the spray valve to place the spray valve in the open state. The automatic actuator is formedseparately from the manual actuator. The manual actuator and the automatic actuator can independently actuate the spray valve to the open state.

[0031] According to various aspects of the disclosure, the spray gun is indexed relative to the carriage by the gun mount that connects the spray gun to the carriage. The gun mount orients the spray gun in a fixed orientation relative to the carriage. The gun mount holds the spray gun in a fixed position and orientation relative to the carriage. The gun mount fixes the location of the nozzle orifice, through which the spray fluid is emitted from the spray gun, relative to the carriage. Such a configuration positively locates the spray output location of the spray gun, facilitating operation and spraying by the robotic applicator. The spray gun can be removed from the carriage for manual spraying and can then be reattached to the carriage for automatic spraying. The robotic applicator does not require retraining on the spray gun or location of the outlet orifice after the spray gun is reconnected.

[0032] Components can be considered to radially overlap when those components are disposed at common axial locations along an axis. A radial line extending orthogonally from axis will extend through each of the radially overlapping components. Components can be considered to axially overlap when those components are disposed at common radial and circumferential locations relative to the axis. An axial line parallel to the axis will extend through the axially overlapping components. Components can be considered to circumferentially overlap when those components are disposed at common radial distance and axial locations along the axis, such that a circle centered on the axis passes through each of the circumferentially overlapping components.

[0033] FIG. 1 is an isometric view of spray system 10. FIG. 2A is an enlarged view of detail 2 in FIG. 1. FIG. 2B is an isometric view showing the spray gun 12 dismounted from the applicator 14. FIGS. 1-2B are discussed together. Applicator 14 and spray gun 12 of spray system 10 are shown. Gun mount 16 of applicator 14 is shown. Mount adaptor 18, locator 20, and lock 22 of gun mount 16 are shown. Gun body 24, spray orifice 26, trigger 28, and automatic actuator 30 of spray gun 12 are shown.

[0034] Spray system 10 is a system configured to apply spray fluid to a target substrate. Spray gun 12 is configured as a hybrid automatic-manual spray gun. The spray gun 12 is operable in a manual operating state in which a user can hold and manipulate spray gun 12 and can cause spraying by spray gun 12. For example, the user can pull trigger 28 to cause emission of spray fluid during manual spray operations. The spray gun 12 is operable in an automatic state in which the applicator 14 can hold and manipulate spraygun 12 and can cause spraying by spray gun 12. For example, a driving fluid can be provided to automatic actuator 30 to cause emission of spray fluid during automatic spray operations. In the example shown, applicator 14 is configured as a multi-axis robotic applicator that has multiple degrees of freedom of movement. It is understood, however, that applicator 14 can be of any configuration suitable for holding, aiming, and actuating spray gun 12 by a machine rather than a human user.

[0035] Spray gun 12 is mountable to and dismountable from applicator 14. Spray gun 12 can remain connected to the spray fluid supply line, which provides spray fluid to the spray gun 12, throughout operation and during both mounting and dismounting. In examples in which spray gun 12 is configured to emit compressed gas in addition to the spray fluid, the spray gun 12 can remain connected to the compressed gas line, which provides the compressed gas to the spray gun 12, throughout operation and during both mounting and dismounting. The spray gun 12 can thus be in and remain in an operable state and be ready for spraying when mounted to applicator 14, when dismounted from applicator 14, and during both mounting and dismounting.

[0036] Gun mount 16 is connected to carriage 15 of applicator 14. In the example shown, carriage 1 is formed as a distal end of the multi-axis arm of the applicator 14, though it is understood that not all examples are so limited. Gun mount 16 is configured to interface with spray gun 12. Gun mount 16 is configured to connect to the spray gun 12 to mount the spray gun 12 to carriage 15.

[0037] Mount adaptor 18 is connected to carriage 15. Mount adaptor 18 is configured to connect other components of gun mount 16 to the carriage 15 in the example shown. The mount adaptor 18 can fix the other components of gun mount 16 to carriage 15 and can maintain those other components of gun mount 16 in fixed orientations relative to carriage 15. The spray gun 12 is configured to fixedly mount to the gun mount 16 such that the gun mount 16 being in a fixed orientation relative to camage 15 can also maintain the spray gun 12 in a fixed orientation relative to carriage 15.

[0038] Locator 20 is connected to mount adaptor 18. Locator 20 extends from mount adaptor 18. Locator 20 is fixed to mount adaptor 18 and is maintained in a fixed orientation relative to mount adaptor 18. Locator 20 is configured to interface with spray gun 12. Locator 20 is configured to orient spray gun 12 relative to gun mount 16 and thus relative to carriage 15. In the example shown, the locator 20 is configured to extend at least partially around a portion of the spray gun 12. In the example shown, the locator 20 includes prongs 32 that interface with spray gun 12 and prevent spray gun 12 from rotatingrelative to gun mount 16. In the example shown, the prongs 32 are disposed on opposite lateral sides of spray gun 12 with a portion of spray gun 12 dispose in the locating gap 34 between the prongs 32. The prongs 32 interfacing with the opposite lateral sides of the spray gun 12 prevents the spray gun 12 from shifting laterally or rotating relative to gun mount 16 while mounted.

[0039] Lock 22 is actuatable between a locked state and an unlocked state. The lock 22 is accessible from the exterior of gun mount 16. The lock 22 is configured to be manually actuated from the locked state to the unlocked state for mounting and dismounting of spray gun 12, in the example shown. Spray gun 12 is axially fixed to the gun mount 16, relative to the spray axis SA, with spray gun 12 mounted and lock 22 in the locked state. Spray gun 12 can be shifted in axial direction ADI away from gun mount 16 to dismount spray gun 12 from gun mount 16. Spray gun 12 can be shifted in axial direction AD2 towards gun mount 16 to mount spray gun 12 to gun mount 16.

[0040] Lock sleeve 50 of lock 22 is shown. Lock sleeve 50 is actuatablc relative to locator 20 to actuate lock 22 between the locked state and unlocked state. For example, the lock sleeve 50 can be slid along the locator 20 to actuate the lock 22 between the locked state and the unlocked state, as discussed in more detail below.

[0041] Spray gun 12 is configured to receive a flow of spray fluid and emit that spray fluid as a fluid spray. The spray gun 12 emits the fluid spray along a spray axis SA. The spray axis SA also represents an upstream side or direction and a downstream side or direction, wherein spray fluid generally flow from the upstream direction towards the downstream direction. In the example shown, the downstream direction is the axial direction ADI and the upstream direction is axial direction AD2. Spray gun 12 can emit the spray fluid as a fan, among other pattern options.

[0042] Gun body 24 supports other components of spray gun 12. Handle 36 is formed as a lower portion of the spray gun 12. Handle 36 forms a portion of the gun body 24. Handle 36 can be formed integrally with (e.g., monolithically) with other portions of gun body 24 or can be formed separately from and connected to other portions of gun body 24. Handle 36 is configured to be grasped by a single hand of a user such that the user can support and aim spray gun 12 by the single hand.

[0043] Spray orifice 26 is disposed at a downstream end of spray gun 12. Spray orifice 26 is disposed at a longitudinal forward end of spray gun 12. The spray gun 12 is configured to output the spray fluid through the spray orifice 26. In some examples, spray orifice 26 can be a shaped orifice that is configured to shape the fluid spray into a desiredpattern. For example, the spray orifice 26 can be a cat-eye configuration for forming the fluid spray into a fan. In some examples, spray gun 12 is further configured to output compressed gas, such as for assisting in atomizing the spray fluid and / or shaping the spray fluid. In the example shown, spray gun 12 includes air cap 38 that emits one or both portions of the compressed gas. It is understood, however, that not all examples include air cap 38, such as examples of spray gun 12 that do not emit compressed gas. For example, spray gun 12 can be configured as an airless sprayer. In such an example, a pressure of the spray fluid provided to spray orifice 26 can cause atomization of the spray fluid.

[0044] Trigger 28 is supported by gun body 24. The trigger 28 is configured to be grasped by one or more fingers of the user, such as one of more fingers of the hand holding the handle 36. As such, spray gun 12 can be held, aimed, and caused to spray by a single hand of the user. Trigger 28 is spaced from the handle 36 and disposed forward of the handle 36 in the example shown. Trigger 28 can be configured to pivot to actuate the spray valve 56 (FIG. 3A) of spray gun 12 and cause spraying by spray gun 12. While trigger 28 is shown as pivotable relative to gun body 24, it is understood that not all examples are so limited.

[0045] Automatic actuator 30 is supported by gun body 24. Automatic actuator 30 is disposed at a rear end of the spray gun 12 in this example. Automatic actuator 30 projects rearwardly from the rear longitudinal end of gun body 24. Automatic actuator 30 can form a rearward-most portion of the spray gun 12 in various examples. Automatic actuator 30 is connected to the spray valve 56 of the spray gun 12 and is configured to actuate the spray valve 56 to an open state. More specifically, automatic actuator 30 is connected to the movable valving component of the spray valve 56 such that the automatic actuator 30 can open the spray valve 56 to cause emission of spray fluid from the spray gun 12.

[0046] During operation, the spray gun 12 can be connected to and operated by the applicator 14 in an automatic operating mode and can be disconnected from the applicator 14 to be held and operated by a user in a manual operating mode. With the spray gun 12 mounted to the applicator 14, the applicator 14 can position spray gun 12 and cause spraying by spray gun 12. For example, a driving fluid (e.g., compressed gas, hydraulic oil, etc.) can be provided to automatic actuator 30 to cause the automatic actuator 30 to open the spray valve 56. The gun mount 16 statically supports the spray gun 12 relative to the applicator 14.The user can dismount the spray gun 12 from applicator 14 to spray in the manual operating mode. The user places lock 22 in the unlocked state. The user can then dismount spray gun 12 by shifting spray gun 12 in axial direction ADI to disconnect spray gun 12 from applicator 14. The user can hold spray gun 12 by handle 36 and actuate trigger 28 to cause spraying by spray gun 12.

[0047] The spray gun 12 can be remounted to applicator 14 to operate in the automatic operating mode. The user can place lock 22 in the unlocked state and shift spray gun 12 in axial direction AD2 to mount spray gun 12 to gun mount 16 and thus to applicator 14. In the example shown, a portion of the spray gun 12 is received in the locating gap 34 between the prongs 32 and a portion of the spray gun 12 is received within the gun mount 16. The lock 22 is actuated back to the locked state and secures the spray gun 12 to the gun mount 16.

[0048] The portion of the spray gun 12 received in the locating gap 34 is bracketed by the prongs 32. The prongs 32 arc disposed on opposite lateral sides of the spray gun 12. The prongs 32 bracket the spray gun 12 such that the spray gun 12 is prevented from rotating on the mount axis MA of the gun mount 16. The prongs 32 physically inhibit lateral movement of the spray gun 12. The prongs 32 extend on opposite lateral sides of the gun body 24 in the example shown. The prongs 32 are disposed vertically higher than the grip 40 of the handle 36 that the user grasps such that the user is able to grasp the handle 36 during mounting and dismounting without interfering with the prongs 32.

[0049] The portion of the spray gun 12 received in the gun mount 16 is fixed to the gun mount 16 by lock 22. The portion of the spray gun 12 received by and fixed to the gun mount 16 locates the spray gun 12 axially along the spray axis SA relative to the gun mount 16. Fixing the spray gun 12 to the gun mount 16 positively locates the spray orifice 26 of the spray gun 12 at a known location relative to the gun mount 16 and thus relative to the applicator 14. In the example shown, a portion of the automatic actuator 30 interfaces with the gun mount 16 to fix the spray gun 12 to the gun mount 16.

[0050] Spray gun 12 provides significant advantages. The fluid supply hoses (e.g., hose 42a for supplying spray fluid and hose 42b for supplying compressed gas in examples including compressed gas) remain connected to spray gun 12 during mounting and dismounting of spray gun 12. The fluid hoses do not need to be disconnected or otherwise manipulated as the spray gun 12 is shifted between the manual and automatic operating modes. Such a configuration provides for quick and easy configuring between the manual and automatic spray modes. The user simply needs to dismount the spray gun 12 fromapplicator 14 and spray gun 12 is ready for manual spray operations. The user simply needs to mount the spray gun 12 to the applicator 14 and the spray gun 12 is ready for automatic spray operations.

[0051] The trigger 28 is formed separately from the automatic actuator 30 in the example shown. The applicator 14 does not interface with or manipulate the trigger 28 to cause spraying by spray gun 12. The trigger 28 is not actuated during automatic spray operations. The user does not need to manipulate or disconnect any portion of the applicator 14 interfacing with the trigger 28 as the trigger 28 is free, accessible, and uncovered while the spray gun 12 is operating in the automatic spray mode. The user does not need to interact with or manipulate the automatic actuator 30 during manual spray operations. Instead, the user is able to grasp handle 36 and manipulate trigger 28 in an intuitive manner for manual spray operations (e.g., grasp handle 36 and pull trigger 28). Having trigger 28 and automatic actuator 30 separately formed provides for quick and easy mounting and dismounting of spray gun 12 and for easy and intuitive operation. Mounting the spray gun 12 to applicator 14 connects the automatic actuator 30 such that the applicator 14 can cause spraying by the automatic actuator 30. The trigger 28 is free and accessible by the user at any time the user wants to operate the spray gun 12 in the manual operating mode.

[0052] FIG. 3A is a cross-sectional view taken along line 3-3 in FIG. 2A. FIG. 3B is an enlarged view of detail B in FIG. 3A. FIG. 3C is an enlarged view of detail C in FIG.

[0053] 3 A. FIG. 4A is a cross-sectional view of a portion of spray gun 12. FIG. 4B is a cross-sectional view of the portion of spray gun 12 shown in FIG. 4A. FIGS. 3A-4B are discussed together. Gun mount 16 and spray gun 12 are shown. Locator 20 and lock 22 of gun mount 16 are shown. Locator 20 includes locator port 44, locator passage 46, and actuator receiver 48. Lock 22 includes lock sleeve 50, detents 52, and lock spring 54. Gun body 24, spray orifice 26, trigger 28, automatic actuator 30, spray valve 56, air cap 38, fan valve 58, gas valve 60, spray fitting 62, and gas fitting 64 of spray gun 12 are shown. Gun body 24 includes front block 66, rear block 68, and handle 36. Inlet passage 70, common passage 72, shaping passage 74, and atomization passage 76 are shown. Actuator housing 80, displacer 82, and connector 84 of automatic actuator 30 are shown. Actuator housing 80 includes housing passage 86, mount end 88, free end 90, and detent receiver 92. Displacer 82 includes drive head 94, mount head 96, displacer shaft 98, displacer port 100, and displacer passage 102. Connector 84 includes brace 104, inner shaft 106, outer shaft 108, and connector passage 110. Spray valve 56 is formed between needle 112 and seat114. Needle 112 includes needle tip 116, needle body 118, and needle head 120. Fan valve 58 includes fan valve shaft 122 and fan valve seat 124. Gas valve 60 includes valve seal 126 and gas valve seat 128. Valve seal 126 includes seal shaft 130, seal body 132, and shaft bore 134.

[0054] Spray gun 12 is configured to emit fluid sprays along spray axis SA. The spray axis SA also represents an upstream side or direction AD2 and a downstream side or direction ADI, wherein spray fluid generally flow from the upstream direction towards the downstream direction. In the example shown, the downstream direction is axial direction ADI and the upstream direction is axial direction AD2. A common axis CA is shown. In various examples, the common axis CA is coaxial with both the spray axis SA and the mount axis MA.

[0055] Spray gun 12 is configured as a hybrid, manual- automatic spray gun 12. Spray gun 12 is operable in a manual spray state and an automatic spray state. In the manual spray state, spray gun 12 is configured as a manual spray gun that is held in a hand of the user and actuated between spray and non-spray states by the user. The user can grasp handle 36 to aim and manipulate spray gun 12. The user can hold spray gun 12 and actuate spray gun 12 between the spray and non-spray states with a single hand of the user. The user can depress the trigger 28 with the fingers of the hand that is grasping handle 36 to cause spraying by spray gun 12. With spray gun 12 in the manual spray state, the trigger 28 controls actuation of the spray valve 56 and the gas valve 60 to respective open states. In the automatic spray state, spray gun 12 is configured as an automatic spray gun that is held and carried by a machine, such as a robotic applicator 14 (FIGS. 1-2B). The applicator 14 holds and aims the spray gun 12. The automatic actuator 30 actuates the spray valve 56 to actuate the spray gun 12 between the spray and non-spray states.

[0056] Spray gun 12 is configured to receive a flow of spray fluid and to emit an atomized spray of the spray fluid for application on a target surface. In the example shown, spray gun 12 is further configured to receive a flow of compressed gas for use in atomizing and / or shaping the liquid spray output from spray gun 12. While spray gun 12 is described as receiving / emitting compressed gas, it is understood that not all examples are so limited. For example, spray gun 12 can be configured to emit liquid spray but not compressed gas. In such an example, the spray orifice 26 can be shaped to atomize the fluid spray and the liquid spray fluid can be provided to spray gun 12 at pressures sufficient to cause such atomization.Gun mount 16 is configured to connect spray gun 12 to camage 15 (e.g., robotic applicator among other options). Mount adaptor 18 is connected to carriage 15, such as by one or more fasteners (e.g., bolts among other options). Locator 20 is connected to mount adaptor 18. Locator 20 is cantilevered from mount adaptor 18 in the example shown. Locator 20 interfaces with mount adaptor 18 to fix the location and orientation of the locator 20 relative to the mount adaptor 18. In the example shown, the locator 20 is at least partially disposed within the mount adaptor 18. Proximal end 136 of locator 20 extends into mount receiver 1 8 of mount adaptor 18. Proximal end 136 interfaces with one or more fixtures 140 that secure the locator 20 to the mount adaptor 18 and / or maintain an orientation of the locator 20 relative to the mount adaptor 18.

[0057] The locator 20 is axially and rotationally fixed relative to the mount adaptor 18. Fixing a position and orientation of the locator 20 relative to the mount adaptor 18 positions the locator 20, and thus the spray gun 12, at a set, known distance from the carriage 15 and at a set, known orientation relative to the carriage 15. The spray gun 12 connects to the locator 20 such that the spray gun 12 is axially and rotationally fixed relative to the locator 20. Such a configuration sets a known position and orientation for the spray orifice 26 of the spray gun 12. The applicator 14 automatically applies the spray coating utilizing the known position and orientation of the spray orifice 26, providing for high quality, efficient spray operations.

[0058] Locator passage 46 is disposed within locator 20. Locator passage 46 extends partially through locator 20 along the mount axis MA of the gun mount 16. Locator passage 46 is open in axial direction ADI towards spray gun 12 and closed in axial direction AD2 away from spray gun 12. Locator port 44 extends through locator 20 between locator passage 46 and the exterior of locator 20. A fitting can be connected to locator 20 at locator port 44. Locator port 44 is configured to convey a driving fluid (e.g., compressed gas, hydraulic oil, etc.) to, and in various examples from, locator passage 46. The driving fluid is configured to actuate spray valve 56 open to cause spraying by spray gun 12. Some or all of the driving fluid can be exhausted through locator port 44 or another port fluidly connected to locator passage 46 to cause spray valve 56 to close.

[0059] Lock 22 is supported by locator 20. Lock 22 is actuatable between a locked state (shown in FIGS. 3A-3C) and an unlocked state (FIGS. 4A and 4B). Lock 22 is configured to interface with one or more components of spray gun 12 to fix spray gun 12 axially relative to the locator 20. The lock 22 can fix the spray gun 12 axially along the mount axis MA.Lock sleeve 50 is disposed on locator 20. Lock sleeve 50 can extend fully around locator 20. Lock sleeve 50 is configured to displace axially along mount axis MA in the example shown. Lock sleeve 50 is configured to shift in axial direction AD2 to place lock 22 in the unlocked state. Lock sleeve 50 is configured to shift in axial direction ADI to place lock 22 in the locked state.

[0060] Detents 52 are disposed between lock sleeve 50 and locator passage 46. Detents 52 are at least partially disposed within the body of locator 20. Detents 52 are configured to engage with a portion of spray gun 12 to axially secure spray gun 12 to gun mount 16. In the example shown, detents 52 are configured to engage with automatic actuator 30 to secure spray gun 12 to gun mount 16. The detents 52 are configured to engage with actuator body 78 of the automatic actuator 30. In the example shown, the detents 52 are configured to engage with actuator housing 80.

[0061] Lock sleeve 50 extends over detents 52 such that lock sleeve 50 biases detents 52 into locking engagement with spray gun 12 with lock 22 in the locked state. Displacing lock sleeve 50 to a position associated with the unlocked state allows detents 52 to shift radially outward away from mount axis MA so actuator body 78 can pass by detents 52, such as during mounting and dismounting of spray gun 12.

[0062] Lock spring 54 is configured to bias lock 22 to the locked state. In the example shown, lock spring 54 interfaces with lock sleeve 50 and biases lock sleeve 50 in axial direction ADI and towards a position associated with the locked state.

[0063] Lock spring 54 is disposed radially between locator 20 and a portion of lock sleeve 50. In the example shown, the lock sleeve 50 extends to radially and axially overlap with the lock spring 54. Lock sleeve 50 covers the lock spring 54, preventing ingestion of spray fluid or other contaminants. Cover 144 of lock sleeve 50 extends in axial direction AD2 from bias block 142 of lock sleeve 50. Cover 144 can be formed as a cylindrical portion of lock sleeve 50, among other options, cover 144 can extend axially beyond lock spring 54 in axial direction AD2.

[0064] In the example shown, lock spring 54 is captured axially between support ring 146 and lock sleeve 50. Support ring 146 is disposed radially between the exterior of locator 20 and the interior surface of cover 144 of lock sleeve 50. Support ring 146 interfaces with lock spring 54 such that lock spring 54 is compressed against support ring 146.

[0065] In some examples, support ring 146 extends radially outward towards cover 144 such that support ring 146 bridges a majority of the radial gap 148 between the exteriorof locator 20 and the cover 144. Support ring 146 can extend up to 90-percent or more across the radial gap 148. The support ring 146 can act as a seal that prevents ingestion of spray fluid or other contaminants into the chamber that lock spring 54 is disposed within. Preventing ingestion of such spray fluid protects the lock spring 54 and prevents sticking that can occur due to such spray fluid.

[0066] Gun body 24 supports other components of spray gun 12. A main body portion of the gun body 24 includes front block 66 and rear block 68. Front block 66 at least partially defines flowpaths for both spray fluid and compressed gas to flow through spray gun 12. Rear block 68 at least partially defines flowpaths for compressed gas to flow through spray gun 12. In the example shown, rear block 68 does not define any passages for spray fluid and is not exposed to spray fluid. Trigger gap 150 is disposed axially between front block 66 and rear block 68. Trigger gap 150 is open towards a lower end of spray gun 12. Trigger gap 150 is closed vertically upward by a portion of gun body 24 that spans between front block 66 and rear block 68.

[0067] Handle 36 extends from the main body portion of gun body 24. Handle 36 projects vertically downward from the main body portion of gun body 24. Handle 36 extends from rear block 68 in the example shown. Handle 36 is configured to be grasped by a hand, such as a single hand, of the user during manual operation of spray gun 12. The exterior of handle 36 can be contoured to provide an ergonomic grip surface for the hand of the user.

[0068] Gas inlet passage 70 is formed within and through handle 36. Gas inlet passage 70 provides a flowpath for compressed gas to enter into gun body 24 and flow to the gas passages within the main body portion of gun body 24.

[0069] Gun bore 156 extends fully axially though gun body 24. Gun bore 156 is open on both the front end 152 of spray gun 12 and the rear end 154 of spray gun 12. Gun bore 156 extends along spray axis SA. Gun bore 156 extends fully axially through front block 66 such that gun bore 156 is open on both axial sides of front block 66. The portion of gun bore 156 in front block 66 is open on front end 152 and open to trigger gap 150. Gun bore 156 extends fully axially through rear block 68 such that gun bore 156 is open on both axial sides of rear block 68. The portion of gun bore 156 in rear block 68 is open on rear end 154 and open to trigger gap 150.

[0070] While gun bore 156 is described as open to trigger gap 150, it is understood that not all examples are so limited. In some examples, gun bore 156 can be open on the front end 152 and rear end 154 of spray gun 12 without a portion being open to a triggergap 150, such as in examples in which the trigger 28 causes displacement other than by direct mechanical displacement of needle 112. For example, trigger 28 can be configured to actuate valving that directs compressed gas that causes displacement of needle 112. In other example, trigger 28 can be configured to cause an electronic spray signal to be generated, the electronic spray signal causing displacement of the needle 112. For example, the electronic spray signal can cause a solenoid or other electric actuator to displace the needle 112.

[0071] A portion of gun bore 1 6 in rear block 68 is directly downstream from inlet passage 70 and defines a portion of the compressed gas flowpath through gun body 24. Gas valve 60 divides the gun bore 156 in rear block 68 into an upstream passage that is fluidly connected to inlet passage 70 throughout operation and a downstream passage that is fluidly connected to inlet passage 70 with gas valve 60 in the open state and that is fluidly disconnected from inlet passage 70 with gas valve 60 in the closed state.

[0072] Gas valve 60 is configured to control flow of compressed gas downstream from inlet passage 70. Valve seal 126 is at least partially disposed within gun body 24. Valve seal 126 is elongate along spray axis SA. Valve seal 126 is hollow in the example shown such that shaft bore 134 extends fully axially through valve seal 126. The shaft bore 134 is open in both axial direction AD2 towards automatic actuator 30 and axial direction ADI towards spray orifice 26.

[0073] Seal shaft 130 is elongate along spray axis SA. Seal shaft 130 is formed as cylinder in the example shown, though it is understood that not all examples are so limited. Seal shaft 130 projects axially out of gun bore 156 in rear block 68 and into trigger gap 150 in the example shown.

[0074] Seal shaft 130 extends through and engages with gas seal 158. Seal shaft 130 forms a sliding seal with gas seal 158 as seal shaft 130 can slide axially relative to gas seal 158. Gas seal 158 is supported by gun body 24. Gas seal 158 is formed as a U-cup seal in the example shown, though it is understood that not all examples are so limited. The sealed interface between gas seal 158 and seal shaft 130 prevents compressed gas from leaking out of gun bore 156 in axial direction ADI between seal shaft 130 and gun body 24.

[0075] Seal body 132 extends radially outward from seal shaft 130. A diameter of valve seal 126 enlarges between seal shaft 130 and an outer radial side of seal body 132. In the example shown, seal body 132 is sloped outward from seal shaft 130 such that seal body 132 extends both axially and radially from seal shaft 130.Valve seal 126 engages with gas valve seat 128 with gas valve 60 in the closed state and is disengaged from gas valve seat 128 with gas valve 60 in the open state. In the example shown, flow seal 160, which is mounted to seal body 132, is configured to directly interface with the gas valve seat 128 to place gas valve 60 in the closed state. Flow seal 160 is formed separately from valve seal 126 and mounted on valve seal 126 in the example shown. Flow seal 160 is configured to engage with gas valve seat 128 to place gas valve 60 in a closed state. Flow seal 160 is spaced from gas valve seat 128 with gas valve 60 in an open state. While gas valve 60 is described as including flow seal 160, it is understood that not all examples are so limited. For example, valve seal 126 can be configured to directly interface with gas valve seat 128 to place gas valve 60 in the closed state.

[0076] Valve spring 162 interfaces with valve seal 126 and biases gas valve 60 to the closed state. Valve spring 162 biases valve seal 126 in axial direction ADI and into engagement with gas valve scat 128. Valve spring 162 extends axially between actuator housing 80 and valve seal 126. In the example shown, at least a portion of seal body 132 of valve seal 126 is disposed radially within valve spring 162. Valve spring 162 is disposed on an exterior of valve seal 126. Valve spring 162 is disposed such that valve spring 162 is exposed to the compressed gas flow through spray gun 12. Valve spring 162 is not exposed to the spray fluid.

[0077] Common passage 72 extends from the portion of gun bore 156 in rear block 68 and forms a portion of the compressed gas flowpath through spray gun 12. Common passage 72 receives compressed gas from the gun bore 156 in rear block 68 when the gas valve 60 is in the open state. The common passage 72 routes the compressed gas to atomization passage 76 (an inlet of which is shown) and shaping passage 74. The atomization passage 76 extends to aperture 164a to output the atomization portion of the compressed air proximate baffle 166a. The shaping passage 74 extends to aperture 164b to output the shaping portion of the compressed air proximate baffle 166b.

[0078] Baffle 166a is configured to distribute a first portion of the compressed gas annularly about the spray axis SA as the first portion of the compressed gas flows in axial direction ADI. The first portion of the compressed gas forms the atomization gas in the example shown. The atomization portion of the compressed gas enters into the inner chamber 168 downstream of baffle 166a. The atomization portion of the compressed gas flows in axial direction ADI over baffle 166a and downstream to central orifice 170 in air cap 38. The first portion of the compressed air exits spray gun 12 through central orifice170. The first portion of the compressed air exits spray gun 12 through an annular ring formed about the spray orifice 26 through which spray fluid is emitted.

[0079] Baffle 166b is configured to distribute a second portion of the compressed gas annularly about the spray axis SA as the second portion of the compressed gas flows in axial direction ADI. The second portion of the compressed gas forms the shaping gas in the example shown. An outer chamber 172 is configured to route the second portion of the compressed gas to the shaping orifices 174 of air cap 38. The outer chamber 172 is formed about the spray axis SA. In the example shown, a portion of the outer chamber 172 radially overlaps with a portion of the inner chamber 168. The outer chamber 172 is disposed radially outward of the inner chamber 168. The shaping portion of the compressed gas is distributed about the spray axis SA by baffle 166b and flows in axial direction ADI and downstream to shaping orifices 174. The shaping portion of the compressed gas exits spray gun 12 through shaping orifices 174 in the horns 176 of air cap 38.

[0080] Fan valve 58 is mounted to gun body 24. Fan valve 58 is actuatablc between an open state, in which shaping passage 74 is open and fluidly connected to common passage 72 such that the shaping portion of the compressed gas can flow to the air cap 38, and a closed state, in which the shaping passage 74 is fluidly disconnected from the common passage 72 such that the shaping portion of the compressed gas is prevented from flowing to the air cap 38. Fan valve 58 includes fan valve shaft 122 that has a shaft head that is engageable with a fan valve seat 124 within gun body 24 to place fan valve 58 in the closed state. The fan valve shaft 122 is accessible from outside of the gun body 24 to be manipulated by the user.

[0081] In the example shown, the fan valve shaft 122 is mounted to a support housing 178 by a threaded interface, with the support housing 178 mounted to gun body 24. The fan valve shaft 122 is rotated relative to the support housing 178 to displace the fan valve shaft 122 relative to fan valve seat 124 to place the fan valve 58 in the open or closed states.

[0082] The atomization passage 76 is fluidly connected to the common passage 72 regardless of the state of the fan valve 58. As such, spray gun 12 is configured to emit atomization gas during any spray operation while the shaping gas can be turned on or shut off depending on the state of fan valve 58.

[0083] Spray valve 56 is formed between needle 112 and seat 114 in the example shown. Needle 112 is engaged with seat 114 with spray valve 56 in the closed state andneedle 112 is disengaged from seat 114 with spray valve 56 in the open state. Needle 112 is configured as the movable valving component of spray valve 56.

[0084] Needle 112 is configured to shift along spray axis SA to actuate spray valve 56 between open and closed states. Needle 112 is movable along spray axis SA and relative to seat 114 to place spray valve 56 in the open and closed states.

[0085] Needle tip 116 is configured to engage with seat 114 to place spray valve 56 in the closed state. Needle tip 116 is disposed at one axial end of needle 112. Needle body 118 extends axially from needle tip 116. In the example shown, needle tip 116 is formed separately from needle body 118 and connected to needle body 118, such as by a threaded interface. It is understood, however, that not all examples are so limited. For example, needle tip 116 and needle body 118 can be formed monolithically.

[0086] Needle body 118 extends in axial direction AD2 from needle tip 116. Needle body 118 extends from within flow chamber 181 to outside of gun body 24. Flow chamber 181 receives the spray fluid provided through spray fitting 62. Needle body 118 extends through needle seal 179 and engages with needle seal 179. Needle body 118 engaging with needle seal 179 seals an axial end of flow chamber 181. Needle seal 179 is configured to interface with an exterior of needle 112. Needle seal 179 can be considered to form a dynamic seal as needle 112 shifts axially relative to needle seal 179 during operation. Needle seal 179 can be formed as a seal assembly including multiple individual sealing components.

[0087] Needle head 120 is disposed at an opposite axial end of needle body 118 from needle tip 116. Needle head 120 has a larger diameter than needle body 118. In the example shown, the needle 112 can be considered to have a needle neck that is the same diameter as the needle body 118, the needle neck connecting the needle head 120 and the needle body 118.

[0088] Automatic actuator 30 is mounted to gun body 24. Automatic actuator 30 is disposed at rear end 154 of gun body 24 in the example shown. Automatic actuator 30 extends rearwards in axial direction AD2 from gun body 24. In some examples, automatic actuator 30 can form a rearward-most portion of the spray gun 12.

[0089] Actuator body 78 is connected to gun body 24 and is configured to interface with gun mount 16. Actuator housing 80 of actuator body 78 is connected to gun body 24. Actuator housing 80 supports other components of automatic actuator 30. In the example shown, actuator housing 80 is connected to gun body 24 at the rear end 154 of spray gun 12. Actuator housing 80 is connected to gun body 24 and at least partially extends into gunbody 24. Actuator housing 80 is connected to gun body 24 by interfaced threading in the example shown, though it is understood that not all examples are so limited. Actuator housing 80 can be connected to gun body 24 in any manner suitable for fixing actuator housing 80 to gun body 24.

[0090] Actuator housing 80 is configured to interface with gun mount 16 with spray gun 12 connected to gun mount 16. Actuator housing 80 can extend at least partially into gun mount 16. An interface between actuator housing 80 and gun mount 16 can structurally connect the spray gun 12 to the gun mount 16, and thus to the applicator 14. In the example shown, actuator housing 80 extends into actuator receiver 48 of locator 20. The actuator receiver 48 is wider than the locator passage 46. Locating shoulder 200 is disposed at an axial end of actuator receiver 48 in axial direction AD2. The locating shoulder 200 axially overlaps with actuator housing 80 to limit displacement of actuator housing 80 into locator 20 in axial direction AD2. The locating shoulder 200 interfacing with actuator housing 80 can align the detent receiver 92 with detents 52.

[0091] Detent receiver 92 is formed on an exterior of actuator body 78. Detent receiver 92 is formed as one or more recesses on an exterior of actuator body 78. Detent receiver 92 can be formed as an annular groove, among other options. In some examples, detent receiver 92 can extend fully annularly around the spray axis SA. In the example shown, the detent receiver 92 is fonned in the exterior of actuator housing 80.

[0092] Detent receiver 92 is configured such that detents 52 are at least partially disposed within detent receiver 92 with spray gun 12 mounted to gun mount 16. The interface between detents 52 and detent receiver 92 fixes the spray gun 12 axially relative to the gun mount 16. The interface between detents 52 can detent receiver 92 prevent the spray gun 12 from shifting axially in axial direction ADI, thereby preventing spray gun 12 from dismounting from gun mount 16. The interface between detents 52 and detent receiver 92 can also prevent the spray gun 12 from shifting axially in axial direction AD2. The static, structural interface formed between detents 52 and actuator body 78 fixes spray gun 12 axially relative to applicator 14, thereby fixing the spray orifice 26 in a known location relative to applicator 14.

[0093] Actuator housing 80 extends between mount end 88 and free end 90. Mount end 88 of actuator housing 80 interfaces with gun body 24 to connect automatic actuator 30 to gun body 24. Mount end 88 extends into gun bore 156 to interface with gun body 24 in the example shown. Free end 90 is spaced in axial direction AD2 from mount end 88. Actuator housing 80 can be considered to be cantilevered from gun body 24.Housing passage 86 extends through actuator housing 80. The housing passage 86 extends fully axially through actuator housing 80. Housing passage 86 is open in both axial direction ADI and axial direction AD2. Displacer 82 and connector 84 are at least partially disposed within housing passage 86. In the example shown, both displacer 82 and connector 84 project from within housing passage 86 to locations outside of and spaced axially from actuator housing 80.

[0094] Displacer 82 is at least partially disposed within actuator housing 80. Displacer 82 is connected to needle 112 such that movement of displacer 82 also causes movement of needle 112. Displacer 82 is movable relative to actuator housing 80 and connector 84. Displacer 82 is configured to shift in axial direction AD2 to displace needle 112 away from seat 114 and actuate the spray valve 56 to the open state. Displacer 82 is configured to shift in axial direction ADI to displace needle 112 towards seat 114 and actuate the spray valve 56 to the closed state.

[0095] Displacer 82 extends out of actuator housing 80 through mount end 88. Displacer 82 can extend fully axially through the gun bore 156 in rear block 68 to project both forward in axial direction ADI and rearward in axial direction AD2 from the gun bore 156 in rear block 68.

[0096] Displacer shaft 98 extends between and connects mount head 96 and drive head 94 of displacer 82. Drive head 94 is disposed within actuator housing 80. Drive head 94 sealingly engages with the interior of actuator housing 80 to at least partially define a drive chamber 183 within actuator housing 80. In the example shown, drive head 94 supports chamber seal 180a that provides the fluid seal between drive head 94 and actuator housing 80. Chamber seal 180a is configured as a dynamic seal that can move relative to actuator housing 80 during displacement of displacer 82.

[0097] Displacer shaft 98 extends between and connects drive head 94 and mount head 96. Mount head 96 is disposed at an opposite axial end of displacer 82 from drive head 94 in the example shown. Mount head 96 is connected to needle 112 to secure displacer 82 and needle 112 together. In the example shown, the mount head 96 and needle head 120 are fixed together by collet 182.

[0098] Displacer shaft 98 extends from within actuator housing 80 to outside of actuator housing 80. Displacer shaft 98 extends in axial direction ADI from drive head 94. Displacer shaft 98 extends into valve seal 126 of gas valve 60. Displacer shaft 98 extends at least partially through the valve seal 126.A sealed interface is formed between displacer shaft 98 and actuator housing 80 to prevent driving fluid (e.g., compressed gas) from leaking out of drive chamber 183 between displacer shaft 98 and actuator housing 80. In the example shown, chamber seal 180b is disposed on and supported by displacer shaft 98. Chamber seal 180b is configured as a dynamic seal that seals between a static component and a moving component. In the example shown, chamber seal 180b is supported on displacer shaft 98 such that the chamber seal 180b is movable relative to actuator housing 80. It is understood, however, that in various other examples the chamber seal 180b can be supported by actuator housing 80 such that the displacer shaft 98 moves relative to chamber seal 180b.

[0099] Connector 84 is at least partially disposed in actuator housing 80. Connector 84 forms a portion of actuator body 78. Connector 84 is configured to interface with gun mount 16 with spray gun 12 connected to gun mount 16. Connector 84 is configured to interface with gun mount 16 such that a fluid connection is formed between automatic actuator 30 and gun mount 16 through connector 84. In the example shown, connector 84 extends into locator 20. The connector 84 is at least partially disposed within locator passage 46.

[0100] Connector 84 includes inner shaft 106 and outer shaft 108. Inner shaft 106 extends in axial direction ADI from connector brace 104. Inner shaft 106 extends towards spray gun 12. Inner shaft 106 extends into and is at least partially disposed within displacer 82 in the example shown. At least a portion of inner shaft 106 is disposed within displacer 82 throughout operation, with the spray valve 56 in both open and closed.

[0101] A fluid seal is formed between connector 84 and displacer 82 to prevent driving fluid from leaking between connector 84 and displacer 82. In the example shown, connector seal 184 interfaces with the exterior of connector 84 and the interior of displacer 82 and forms the fluid seal therebetween. Connector seal 184 is supported by connector 84 in the example shown. Connector seal 184 is disposed in a seal groove on the exterior of inner shaft 106. It is understood, however, that connector seal 184 can be supported by connector 84 or displacer 82. For example, connector seal 184 can be supported by displacer 82 such that connector seal 184 moves with displacer 82 relative to connector 84. The fluid seal between connector 84 and displacer 82 is maintained throughout operation.

[0102] Outer shaft 108 of connector 84 extends in axial direction AD2 from brace 104. Outer shaft 108 extends axially away from gun body 24 in the example shown. Outer shaft 108 extends axially outward beyond the actuator housing 80. As such, the connector 84 can be partially disposed within actuator housing 80 and partially disposed outside ofactuator housing 80. Outer shaft 108 is configured to interface with gun mount 16 with spray gun 12 mounted to gun mount 16. Outer shaft 108 extends into locator passage 46 and interfaces with locator 20.

[0103] A fluid seal is formed between connector 84 and locator 20 to prevent driving fluid from leaking between connector 84 and locator 20. In the example shown, mount seal 186 interfaces with the exterior of connector 84 and the interior of locator 20 and forms the fluid seal therebetween. Mount seal 186 interfaces with the exterior of outer shaft 108. Mount seal 186 is supported by locator 20 in the example shown, though it is understood that not all examples are so limited. Having the mount seal 186 in locator 20 shields the mount seal 186 from falling fluid spray during manual operation of spray gun 12, providing longer life and effective sealing.

[0104] In the example shown, the mount seal 186 forms a fluid seal between two static components during automatic operation of spray gun 12. The connector 84 moves relative to the mount seal 186 during mounting and dismounting of spray gun 12. In the example shown, connector 84 includes lip 188 between the axial end face of connector 84 oriented in direction AD2 and the exterior of connector 84. Lip 188 is contoured to eliminate sharp edges that can catch on or otherwise damage the mount seal 186.

[0105] Brace 104 extends radially outward relative to other portions of connector 84. Brace 104 can be considered to form a flange. Brace 104 can extend fully annularly around the mount axis MA in various examples. Brace 104 is captured within actuator housing 80 to axially locate connector 84 relative to actuator housing 80. In the example shown, housing shoulder 190 axially overlaps with brace 104 to prevent displacement in axial direction ADI. A clip or other retainer axially overlaps with brace 104 to prevent displacement in axial direction AD2.

[0106] Return spring 202 interfaces with displacer 82 and is configured to bias displacer 82 in axial direction ADI. Return spring 202 is configured to bias displacer 82 in axial direction ADI to bias spray valve 56 towards the closed state. In the example shown, the return spring 202 is captured between drive head 94 and brace 104. Return spring 202 is configured to cause closure of the spray valve 56 when operating spray gun 12 in both the automatic spray mode and the manual spray mode. Return spring 202 is not exposed to any spray fluid during operation. Return spring 202 is disposed outside of gun body 24 in the example shown. Return spring 202 is positioned such that return spring 202 does not radially overlap with gun body 24.Drive chamber 183 is formed in actuator housing 80. Drive chamber 183 is configured to be pressurized with a drive fluid (e.g., compressed gas, hydraulic oil, etc.) to displace the displacer 82 and cause the automatic actuator 30 to actuate the spray valve 56 to the open state.

[0107] Displacer 82 and needle 112 are fixed together. Displacer 82 is connected to needle 112 such that axial movement of displacer 82 along the common axis CA also causes axial movement of needle 112 along the common axis CA. In the example shown, needle 112 and displacer 82 are fixed together by collet 182. Collet 182 captures both the needle head 120 of needle 112 and the mount head 96 of displacer 82 to fix the needle 112 and displacer 82 together for simultaneous actuation.

[0108] Collet 182 includes a mount chamber 192 within which both needle head 120 and mount head 96 are retained. The collet 182 axially overlaps with the mount head 96 and with the needle head 120 such that mount head 96 and needle head 120 are prevented from shifting axially out of the mount chamber 192. In the example shown, collet 182 includes drive ring 194 that extends radially outward from a main body portion of the collet 182. The drive ring 194 projects outward to axially overlap with the seal shaft 130 of valve seal 126. The drive ring 194 overlaps with the seal shaft 130 such that collet 182 can exert a driving force on seal shaft 130 to displace seal shaft 130 in axial direction AD2. The seal shaft 130 displacing in axial direction AD2 causes the valve seal 126 to disengage from the gas valve seat 128 thereby opening the gas valve 60.

[0109] During operation, spray gun 12 can be operated manually or automatically. An example of initial automatic operation and switching to manual operation is discussed in more detail below.

[0110] Aspects of the spray pattern of the spray emitted from the spray gun 12 can be set by the user. The user can manipulate the fan valve 58 to open or close the fan valve 58 and / or set an opening distance of the fan valve 58 to regulate flow of the compressed gas through fan valve 58. Varying the flow of the shaping portion of the compressed gas can vary the spray pattern. For example, reducing or shutting off the flow of the shaping portion can result in a rounder pattern. Increasing the flow of the shaping portion can result in a longer, narrower spray pattern, such as a fan.

[0111] Spray gun 12 is mounted to applicator 14 for automatic operation. Lock sleeve 50 is displaced in axial direction AD2 to place lock 22 in the unlocked state and allow detents 52 to shift radially outward for mounting of spray gun 12. Spray gun 12 is aligned with gun mount 16 and shifted in axial direction AD2 such that automatic actuator30 interfaces with gun mount 16. In the example shown, the actuator body 78 is axially aligned with locator passage 46 on the mount axis MA.

[0112] In the example shown, a portion of the gun body 24 is received between the prongs 32 (best seen in FIG. 2B) of the locator 20, preventing the spray gun 12 from rotating relative to gun mount 16. Connector 84 shifts into locator passage 46. Actuator housing 80 shifts into locator 20. The lock 22 is placed back in the locked state and engages with actuator housing 80 to hold spray gun 12 on gun mount 16. For example, the user can release lock sleeve 50 and the lock spring 54 will cause lock 22 to return to the locked state. The lock sleeve 50 biases the detents 52 into detent receiver 92 to axially fix the spray gun 12 relative to the gun mount 16.

[0113] With spray gun 12 mounted to gun mount 16, the spray orifice 26 is at a known, fixed position relative to the applicator 14. The robotic applicator 14 that includes the carriage 15 can maneuver, position, and spray based on the known position of the spray orifice 26.

[0114] Automatic actuator 30 is utilized to cause spraying during automatic spray operations. Driving fluid actuates the spray valve 56 from the closed state to the open state during automatic spray operations. In the example shown, fluid line 196 is connected to gun mount 16 and is configured to provide driving fluid for actuating automatic actuator 30. In some examples, the fluid line 196 can convey driving fluid from gun mount 16, such as to depressurize drive chamber 183 and to stop spraying by spray gun 12.

[0115] Driving fluid is provided through locator port 44. The driving fluid flows through locator passage 46 and connector passage 110 and into displacer passage 102 of displacer 82. The driving fluid exits displacer 82 through displacer port 100 to flow into drive chamber 183. The driving fluid increases the pressure in drive chamber 183 and the pressure acts on drive head 94 in axial direction AD2. The fluid pressure overcomes the resisting force of the return spring 202 and drives displacer 82 in axial direction AD2. The displacer 82 and needle 112 are fixed together such that the displacer 82 moving in direction AD2 also pulls needle 112 in direction AD2. The needle 112 disengages from seat 114, opening spray valve 56 and allowing emission of the spray fluid.

[0116] In the example shown, the automatic actuator 30 also controls flow of compressed gas through gas valve 60. The displacer 82 and needle 112 are connected together for simultaneous movement. Collet 182 that holds the displacer 82 and needle 112 together also overlaps with valve seal 126. When displacer 82 and needle 112 shift in axial direction AD2, the collet 182 engages with seal shaft 130 and displaces valve seal 126 inaxial direction AD2. Valve seal 126 disengages from gas valve seat 128, allowing flow of the compressed gas downstream through common passage 72. In some examples, spray gun 12 can be configured such that the gas valve 60 opens simultaneously with spray valve 56, though it is understood that not all examples are so limited.

[0117] Spray valve 56 is actuated back to the closed state to stop spraying by spray gun 12. The pressure in drive chamber 183 is reduced. For example, the driving fluid can be vented through locator port 44 or another port in locator 20. The return spring 202 drives displacer 82, and thus needle 112, in axial direction ADI . The needle 112 reengages with seat 114 and spray valve 56 is placed in the closed state.

[0118] The spray valve 56 is actuated to the closed state by return spring 202. Return spring 202 is disposed outside of any flowpath within the gun body 24. The return spring 202 is disposed outside of any flowpath of the spray fluid. The return spring is not exposed to the spray fluid during operation. The return spring 202 is disposed outside of any flowpath of compressed gas through the gun body 24. The return spring 202 is not exposed to the compressed gas that forms the shaping and atomization portions of the compressed gas. In the example shown, the return spring 202 is not exposed to the driving fluid. Return spring 202 is disposed rearward of the rear end 154 of the gun body 24. At least a portion, up to all, of the return spring 202 is disposed rearward of the rearward-most portion of the gun body 24. The return spring 202 resets the automatic actuator 30 for subsequent operation of automatic actuator 30 and causes the needle 112 to engage with seat 114 to close spray valve 56.

[0119] Gas valve 60 is closed during closure of the spray valve 56. Valve spring 162 biases valve seal 126 in axial direction ADI. Valve spring 162 drives valve seal 126 in axial direction ADI and causes valve seal 126 to reengage with gas valve seat 128. Valve spring 162 can cause valve seal 126 to ride on collet 182 such that gas valve 60 begins to close simultaneously with spray valve 56 beginning to close. In some examples, the gas valve 60 and spray valve 56 can close simultaneously.

[0120] In the example shown, the gas valve 60 and spray valve 56 are both mechanically displaced from their respective open states to their respective closed states. Gas valve 60 and spray valve 56 are closed by separate springs (valve spring 162 and return spring 202, respectively). It is understood, however, that not all examples are so limited. For example, valve seal 126 can be fixed relative to displacer 82 such that valve seal 126 displaces with displacer 82 in both axial directions ADI and AD2.In the example shown, the movable valving components of spray valve 56 and gas valve 60 are formed as separate component parts. The valve seal 126 is formed separately from the displacement assembly formed by the needle 112 and displacer 82. It is understood, however, that not all examples are so limited. For example, the displacement assembly and valve seal 126 can be formed as a single integral component in which the displacement assembly and valve seal 126 are fixed together for axial movement. In some examples, valve seal 126 can be formed monolithically with one or more components of the displacement assembly, such as with displacer 82.

[0121] The spray gun 12 can be disconnected from gun mount 16 and utilized for manual spray operations. To dismount the spray gun 12, the lock 22 is placed in the unlocked state. Lock sleeve 50 is shifted in axial direction AD2 to place lock 22 in the unlocked state. Lock spring 54 is compressed between lock sleeve 50 and support ring 146. Spray gun 12 is shifted in axial direction ADI such that automatic actuator 30 is disconnected from gun mount 16.

[0122] Spray gun 12 provides for quick and easy mounting and dismounting. During dismounting, the user can actuate the lock 22 to the unlocked state with a first hand while grasping the spray gun 12 (e.g., grasping handle 36) with a second hand. The user can hold the lock 22 in the unlocked state with the first hand and shift the spray gun 12 off of the gun mount 16 with the second hand.

[0123] The material supply hose 42a and compressed gas hose 42b remain connected to the spray gun 12 during mounting and dismounting. As such, the spray gun 12 can be connected to fluid for spraying with spray gun 12 mounted for automatic spray operations, with spray gun 12 dismounted for manual spray operations, and during both mounting and dismounting. Such a configuration provides for quick and easy transition between automatic and manual spraying. No fluid lines need to be manipulated, connected, or disconnected to transition between automatic and manual spraying.

[0124] The user can operate spray gun 12 manually with spray gun 12 dismounted from carriage 15. As best seen in FIGS. 4A and 4B, the lock 22 is shifted to an unlocked state and spray gun 12 can be dismounted from gun mount 16. In the example shown, spray gun 12 is shifted in axial direction ADI along the mount axis MA. The mechanical and driving connections between spray gun 12 and gun mount 16 are broken. The spray gun 12 can be held by handle 36. The user can actuate trigger 28 to cause spraying by spray gun 12.In the example shown, the lock 22 is configured to be manually actuated to the unlocked state. The user can grasp lock sleeve 50 and displace lock sleeve 50. In the example shown, the lock sleeve 50 is configured to be displaced axially. In the example shown, the lock sleeve 50 slides linearly between the locked state and the unlocked state. The lock sleeve 50 is displaced in axial direction AD2, away from spray gun 12, in the example shown to place lock 22 in the unlocked stale. For example, a user can grasp lock sleeve 50 with a first hand while holding spray gun 12 with a second hand (e.g., by grasping the handle 36). The user can actuate the lock sleeve 50 with the first hand to place lock 22 in the unlocked state and can shift spray gun 12 in axial direction ADI to dismount spray gun 12 from gun mount 16.

[0125] Lock sleeve 50 being displaced in second axial direction AD2 allows detents 52 to move radially outward away from the mount axis MA. The actuator housing 80 can push the detents 52 radially outward as the spray gun 12 displaces in axial direction AD2 to pass by the detents 52.

[0126] In the example shown, the detent receiver 92 includes sloped wall 198 on an axial side of detent receiver 92 furthest from spray gun 12. The sloped wall 198 is configured to engage with the detents 52 such that the detents 52 can ride on the sloped wall 198 to be pushed radially outward during dismounting of spray gun 12. Such a configuration reduces wear and provides for a longer operating life. Such a configuration also provides for easier movement of detents 52 radially outward, making for easier dismounting of spray gun 12 from gun mount 16.

[0127] During dismounting, the connector 84 is removed from within gun mount 16. The structural mounting connection and the driving fluid connection between spray gun 12 and gun mount 16 are both broken. The mounting and driving connections between spray gun 12 and gun mount 16 can be considered to be simultaneously broken during dismounting. In the example shown, the mounting connection is the mechanical connection between lock 22 and spray gun 12 and the supporting interface between locator 20 and actuator body 78. In the example shown, the driving connection is the fluid connection between gun mount 16 and automatic actuator 30.

[0128] With spray gun 12 dismounted from gun mount 16, the spray valve 56 is maintained in the closed state. Return spring 202 interfaces with displacer 82 and biases displacer 82 in axial direction ADI. Displacer 82 biases needle 112 in axial direction ADI to maintain spray valve 56 in the closed state.With spray gun 12 dismounted, the trigger 28 is actuated to cause spray gun 12 to spray. For example, trigger 28 can be pulled towards handle 36 to cause spraying by spray gun 12. The trigger 28 is configured to exert force to displace needle 112 in axial direction AD2. In the example shown, trigger 28 exerts force on collet 182 in axial direction AD2. Needle head 120 is captured within collet 182 such that displacing collet 182 in axial direction AD2 also displaces needle 112 in axial direction AD2. Needle 112 displaces in axial direction AD2, disengaging needle tip 116 from the seat 114 of spray valve 56, thereby opening a flowpath through spray valve 56. The gas valve 60 is also opened by shifting of the valve seal 126 in axial direction AD2.

[0129] The displacer 82 is fixed axially relative to needle 112 such that displacer 82 displaces in axial direction AD2 with needle 112. The displacer 82 shifting in axial direction AD2 compresses the return spring 202 between displacer 82 and connector 84.

[0130] The user can release the trigger 28 to stop spraying by the spray gun 12. The user releasing trigger 28 relieves the force in axial direction AD2 holding the spray valve 56 open. With trigger 28 released, return spring 202 drives displacer 82 and thus needle 112 in axial direction ADI . The spray valve 56 and gas valve 60 return to their respective closed states, stopping fluid emission from spray gun 12.

[0131] The user can control the emission of the spray fluid from spray gun 12 by the trigger 28. The user can feather the flow out of the spray gun 12 during manual spray operations based on pull of the trigger 28. The opening distance between the needle tip 116 and the seat 114 of the spray valve 56 controls spray fluid flow through the spray orifice 26. The user can pull the trigger 28 a relatively greater distance towards handle 36 to increase the emission rate. The user can pull the trigger 28 a relatively smaller distance towards handle 36 to decrease the emission rate. As such, the user is able to feather the emission from spray gun 12, facilitating application of a high-quality finish and allowing detailed finishing.

[0132] In the example shown, when operating in an automatic spray mode, the automatic actuator 30 is configured to actuate the spray valve 56 fully open. When operating in a manual spray mode, the trigger 28 can vary the opening of the spray valve 56. The variable opening distance allows the user to feather the spray while operating spray gun 12 in the manual operating mode.

[0133] Spray gun 12 provides significant advantages. Spray gun 12 is operable in an automatic spray mode and in a manual spray mode. Spray gun 12 remains connected to fluid lines (e.g., hose 42b providing compressed gas and hose 42a providing spray fluid)while operating in the automatic spray mode, while operating in the manual spray mode, and while being mounted to and dismounted from gun mount 16. The fluid lines remaining connected to the spray gun 12 facilitates quick and efficient conversion between the automatic and manual operating modes. The user can simply dismount spray gun 12 from gun mount 16 and spray gun 12 is ready for operation in the manual spray mode. The fluid lines that are connected to the spray gun 12 do not need to be manipulated, connected, or disconnected but instead remain mounted to and fluidly connected with spray gun 12.

[0134] In the example shown, spray gun 12 is configured to receive spray fluid through a bottom side of the spray gun 12. The supply line that provides spray fluid to the spray gun 12 is connected on a bottom side of the spray gun 12. That supply line is connected at spray fitting 62 in the example shown. Such a configuration provides for ergonomic and comfortable spray operations by the user. The supply line hangs from the spray gun 12 and does not need to wrap over the user’s hand or arm. Similarly, in examples including compressed gas flow to spray gun 12, the supply line that provides the compressed gas is connected at a bottom side of the spray gun 12. That supply line is connected at gas fitting 64 in the example shown. In the example shown, the compressed gas supply line is connected at a bottom end of the handle 36. Having both the spray fluid and compressed gas supply lines connected on a bottom side of the spray gun 12 provides for ergonomic, intuitive operations.

[0135] Spray gun 12 is quickly and easily mountable to and dismountable from gun mount 16. Mechanically connecting spray gun 12 to gun mount 16 also forms the driving fluid connection that facilitates automatic operation of spray gun 12. A single connection can be made between the spray gun 12 and gun mount 16 to form both the mechanical and driving connections.

[0136] Gun mount 16 holds spray gun 12 such that the spray orifice 26 remains in a known location and orientation relative to applicator 14. Gun mount 16 holds spray gun 12 such that the spray orifice 26 returns to that same known position and orientation each time spray gun 12 is mounted to gun mount 16. Such a configuration means that the applicator 14 that can position and aim spray gun 12 does not need to be reprogrammed for a position of the spray orifice 26 each time spray gun 12 is mounted. Instead, the spray orifice 26 remains in the known position. Such a configuration reduces downtime and facilitates quick and easy conversion from manual spraying to automatic spraying.

[0137] In the example shown, the gun mount 16 interfaces with the body of spray gun 12 to maintain spray orifice 26 in a known orientation. The gun mount 16 interfaceswith gun body 24 such that the spray gun 12 remains in a fixed orientation while connected to gun mount 16. Such a configuration means that the applicator 14 that can position and aim spray gun 12 does not need to be reprogrammed for an orientation of the spray orifice 26 each time spray gun 12 is mounted. Instead, the spray orifice 26 remains in the known orientation. Such a configuration reduces downtime and facilitates quick and easy conversion from manual spraying to automatic spraying.

[0138] Spray gun 12 is easily accessible for dismounting with spray gun 12 mounted to gun mount 16. The gun mount 16 overlaps with an upper, rear portion of the spray gun 12, at which the automatic actuator 30 extends from gun body 24. Portions of the rear side of spray gun 12 below the automatic applicator 14 (e.g., portions of handle 36) are not overlapped axially by the gun mount 16 such that those portions are accessible with spray gun 12 mounted. Further, the lateral sides of spray gun 12, the top side of spray gun 12, and the bottom side of spray gun 12 are not obstructed by the gun mount 16 such that spray gun 12 is accessible from any of those sides. Such a configuration allows for quick and easy access to spray gun 12 for conversion between automatic spraying and manual spraying. The user can approach spray gun 12 from five and a half of six total sides of the spray gun 12 (each of the front, top, bottom, two lateral, and half of the rear). The user is able to grasp handle 36 for mounting and dismounting without needing to manipulate the robotic support.

[0139] Spray gun 12 is mountable to and dismountable from gun mount 16 by relative linear motion. The spray gun 12 can be shifted linearly in direction AD2 to mount to gun mount 16. The spray gun 12 can be shifted linearly in direction ADI to dismount from gun mount 16. Such linear shifting for mounting and dismounting provides for simple and efficient conversion between the automatic and manual spray states.

[0140] Spray gun 12 can be retrofit between a hybrid configuration, in which spray gun 12 is operable in the manual operating mode and the automatic operating mode, and a manual configuration in which the spray gun 12 is operable in the manual operating mode and not the automatic operating mode. The automatic actuator 30 can be removed from spray gun 12 and replaced with other components for strictly manual operation. Such a configuration can allow retrofitting of a manual spray gun to a hybrid spray gun for automatic and manual operations. The automatic actuator 30 can be installed in place of other components to convert for hybrid operations.

[0141] FIG. 5 A is an isometric view of mount adaptor 18. FIG. 5B is a cross-sectional view of mount adaptor 18 taken along line 5-5 in FIG. 5A. FIGS. 5A and 5B arediscussed together. Mount adaptor 18 includes adaptor body 204 having base 206 and mount support 208. Mount receiver 138 is formed in mount support 208.

[0142] Mount adaptor 18 is configured to mount on a carriage 15 (FIG. 1) of an applicator 14. Mount adaptor 18 is configured to connect the gun mount 16 to the carriage 15. Mount adaptor 18 is configured to interface with the locator 20 such that the mount adaptor 18 holds the locator 20 in a known position and orientation throughout operation.

[0143] Adaptor body 204 is configured to interface with carriage 15 and with locator 20. Base 206 of adaptor body 204 is mountable to carriage 15. In the example shown, base 206 includes base openings 210 that extend through base 206. The base openings 210 are configured to align with openings of the carnage 15 and fasteners extend through one or more of the base openings 210 and into the carriage 15 to secure the mount adaptor 18 to the carriage 15. In the example shown, the base openings 210 include locating opening 212a and fastener openings 214b. Locating opening 212a has a different diameter from fastener openings 214b. In the example shown, locating opening 212a has a smaller diameter than the fastener openings 214b, though it is understood that not all examples are so limited.

[0144] The differently sized locating opening 212a and fastener openings 214b provide a keying feature for mounting of mount adaptor 18 to carriage 15. In some examples, the locating opening 212a is configured to receive a locator, such as a dowel among other options, while fastener openings 214b are configured to receiver fasteners (e.g., a bolt). Mount adaptor 18 can be indexed relative to carriage 15 to set an orientation of the spray orifice 26. The locating opening 212a is aligned with an opening (not shown) on carriage to index mount adaptor 18 relative to applicator 14.

[0145] Mount support 208 extends from base 206. Mount support 208 is configured to interface with gun mount 16 to connect gun mount 16 and mount adaptor 18. Mount receiver 138 is at least partially defined by mount support 208. Mount receiver 138 is an opening space within which a portion of the gun mount 16 is disposed with gun mount 16 connected to mount adaptor 18. In the example shown, mount receiver 138 is formed by mount arms 216a, 216b. Mount arms 216a, 216b extend away from base 206. Mount receiver 138 is disposed between mount arms 216a, 216b.

[0146] Mount support 208 includes support openings 218a-218d. Support openings 218a-218d are formed in mount arms 216a, 216b in the example shown. In the example shown, mount arm 216a includes support openings 218a, 218b and mount ami216b includes support openings 218c, 218d. Support opening 218a is aligned with support opening 218c. Support opening 218b is aligned with support opening 218d.

[0147] The support openings 218a-218d on a single mount arm 216a, 216b are offset from each other. In the example shown, support opening 218a is disposed closer to arm edge 220a than arm edge 220b of mount arm 216a. Support opening 218b is disposed closer to arm edge 220b than ami edge 220a of mount ami 216a. The support openings 218a, 218b on mount arm 216a are disposed on opposite sides of a centerline of the mount arm 216a. The support openings 218a, 218b can be considered to be laterally offset from each other on the mount arm 216a. In the example shown, support opening 218c is disposed closer to arm edge 220a than arm edge 220b of mount arm 216b. Support opening 218d is disposed closer to arm edge 220b than arm edge 220a of mount arm 216b. The support openings 218c, 218d on mount arm 216b are disposed on opposite sides of a centerline of the mount arm 216b. The support openings 218c, 218d can be considered to be laterally offset from each other on the mount arm 216b. The offset support openings 218a-218d on each mount arm 216a, 216b fix the gun mount 16 relative to the mount adaptor 18, and thus relative to the carriage 15. The offset support openings 218a, 218b and 218c, 218d prevent sagging of the gun mount 16 and other undesirable relative movement that could change the location of the spray orifice 26 of the spray gun 12.

[0148] In some examples, a first subset of the support openings 218a-218d is configured to receive a positional locator, such as a dowel, and a second subset of the support openings 218a— 218d is configured to receive one or more fasteners to secure the gun mount 16 to the mount adaptor 18. For example, support openings 218a, 218c are aligned with each other and can be configured to receive one or more fasteners (e.g., bolts among other options). A single fastener can pass through both support openings 218a, 218c and gun mount 16. In other examples, a first fastener can pass through support opening 218a and into gun mount 16 to connect to gun mount 16 and a second fastener can pass through support opening 218c and into gun mount 16 to connect to gun mount 16. Support openings 218b, 218d are aligned with each other and can be configured to receive one or more positional locator. A single positional locator (e.g., dowel) can pass through both support openings 218b, 218d and gun mount 16. In other examples, a first positional locator can pass through support opening 218b and into gun mount 16 to interface with gun mount 16 and a second positional locator can pass through support opening 218d and into gun mount 16 to interface with gun mount 16.Mount adaptor 18 provides significant advantages. Mount adaptor 18 is connectable to a carriage 15 and is configured to hold the gun mount 16 in a set, fixed position and orientation relative to the carnage 15. The base 206 is secured to the carriage 15 in a set orientation, which sets the orientation of the gun mount 16, and thus the spray gun 12, relative to the carriage 15. The gun mount 16 is connected to mount adaptor 18 at mount support 208. The support openings 218a-218d on each lateral side of the gun mount 16 are offset relative to each other (i.e., the support openings 218a, 218b on mount arm 216a are misaligned). The offsets between the pairs of support openings 218a, 218b and support openings 218c, 218d maintain the gun mount 16 in a fixed position and orientation while preventing sagging or other undesirable movement.

[0149] While the invention has been described with reference to an exemplary embodiment(s), it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment(s) disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

CLAIMS:

1. A spray gun comprising :a gun body having a handle;a spray valve supported by the gun body, the spray valve formed between a needle and a valve seat, the needle movable along an axis relative to the valve seat;a trigger supported by the gun body, the trigger configured to actuate the spray valve from a closed state to an open state; andan automatic actuator mounted to the gun body, the automatic actuator including:an actuator body extending rearward from a rear side of the gun body; anda displacer at least partially disposed within the actuator housing, the displacer coupled to the needle such that the needle and the displacer displace together;wherein the spray gun is operable in a manual spray mode and an automatic spray mode, the trigger configured to displace the needle to open the spray valve in the manual spray mode, and the automatic actuator configured to displace the needle to open the spray valve in the automatic spray mode.

2. The spray gun of claim 1, wherein a drive chamber is disposed within the actuator body, the drive chamber configured to receive a working fluid to pressurize the drive chamber and displace the displacer and the needle.

3. The spray gun of claim 1, wherein the actuator body comprises:an actuator housing connected to the gun body; andan actuator connector at least partially disposed in the actuator housing.

4. The spray gun of claim 3, wherein the actuator connector extends rearward out of the actuator housing.

5. The spray gun of any one of claims 3 and 4, wherein the displacer includes a drive head disposed within the actuator housing, the drive head at least partially defining a drive chamber within the actuator housing.

6. The spray gun of claim 5, wherein a connector passage is formed in the actuator connector, the connector passage fluidly connected to the drive connector.

7. The spray gun of claim 6, wherein the displacer includes a displacer port, the displacer port fluidly connected to the drive chamber and the connector passage.

8. The spray gun of any one of claims 3-7, wherein the actuator connector includes:a brace interfacing with the actuator housing;an inner shaft extending from the brace and towards the gun body; and an outer shaft extending from the brace and away from the gun body; wherein the inner shaft is at least partially disposed within the displacer.

9. The spray gun of any one of claims 3-8, further comprising:a return spring disposed within the actuator housing, the return spring disposed between a portion of the actuator connector and the displacer, the return spring biasing the displacer towards the needle to bias the spray valve towards the closed state.

10. The spray gun of any one of claims 1-8, further comprising:a return spring disposed within the actuator body, the return spring biasing the displacer towards the needle to bias the spray valve towards the closed state.

11. The spray gun of claim 10, wherein the return spring is configured to cause the spray valve to actuate to the closed state with the spray gun in both the manual spray mode and the automatic spray mode.

12. The spray gun of any one of claims 10 and 11, wherein the return spring is disposed fully outside of the gun body.

13. The spray gun of any one of claims 1-12, wherein the displacer is disposed coaxially with the needle on the axis.

14. The spray gun of any one of claims 1-13, wherein the displacer comprises:a drive head disposed in the assembly body;a displacer shaft extending in a first direction along the axis, out of the actuator body and into the gun body; anda mount head disposed at an end of the displacer shaft opposite the drive head.

15. The spray gun of claim 14, wherein the needle includes a needle tip configured to interface with the valve seat with the spray valve in the closed state, the needle includes a needle head disposed at an opposite end of the needle from the needle tip.

16. The spray gun of claim 15, further comprising:a collet capturing the mount head and the needle head to couple the displacer and the needle.

17. The spray gun of any one of claims 1-13, wherein a collet joins the displacer and the needle together.

18. The spray gun of any one of claims 16 and 17, wherein the trigger interfaces with the collet to displace the needle in the manual spray mode.

19. The spray gun of any one of claims 1-18, further comprising:a gas valve supported by the gun body, the gas valve actuatable open to allow compressed gas flow through the gas valve and actuatable closed to prevent the compressed gas flow through the gas valve.

20. The spray gun of claim 19, wherein the gas valve includes:a valve seal displaceable relative to a gas seat.

21. The spray gun of claim 20, wherein the displacer extends at least partially through the valve seal.

22. The spray gun of any one of claims 20 and 21, wherein the needle is at least partially disposed within the valve seal.

23. The spray valve of any one of claims 20-22, wherein the valve seal includes a seal body configured to engage with the gas seat, and the valve seal includes a valve shaft extending from the seal body and towards the spray valve.

24. The spray gun of any one of claims 19-23, wherein the gas valve is disposed coaxially with the spray valve.

25. A spray system comprising:a gun mount comprising a mount body having an actuation passage formed therein; anda spray gun configured to output spray fluid along a spray axis, the spray gun comprising:a gun body having a handle;a spray valve supported by the gun body, the spray valve formed between a needle and a spray seat, the needle extending along a spray axis;a trigger supported by the gun body, the trigger configured to actuate the spray valve from a closed state to an open state; and an automatic actuator mounted to the gun body, the automatic actuator including:an actuator body extending rearward from a rear side of the gun body; anda displacer at least partially disposed within the actuator housing, the displacer coupled to the needle such that the needle and the displacer displace together; wherein the spray gun is mountable to and dismountable from the gun mount, the automatic actuator fluidly coupled to the actuation passage to receive driving fluid from the actuation passage with the spray gun mounted to the gun mount.

26. The system of claim 25, wherein the actuator body includes an actuator connector, the actuator connector extending into the actuation passage with the spray gun mounted to the gun mount.

27. The system of claim 26, further comprising a connector passage is formed within the actuator connector, the connector passage fluidly connected to the actuation passage.

28. The system of claim 27, wherein the connector passage extends fully through the actuator connector along a connector axis.

29. The system of claim 28, wherein the connector axis is coaxial with the spray axis.

30. The system of any one of claims 26-29, wherein the actuator body includes an actuator housing, the actuator connector extending rearward out of the actuator housing and the displacer extending forward out of the actuator housing.

31. The system of any one of claims 25-30, wherein the spray gun includes a gas valve configured to control flow of compressed gas.

32. The system of claim 31, wherein the gas valve is disposed coaxially with the spray valve.

33. The system of any one of claims 25-32, wherein the gun mount comprises:a locator elongate along an actuator axis, the actuation passage disposed in the locator;wherein the actuator body is at least partially disposed in the locator with the spray gun mounted to the gun mount.

34. The system of claim 33, wherein the locator defines a receiver, the receiver wider than the actuation passage within the locator.

35. The system of claim 34, wherein the assembly body is axially fixed to the locator within the receiver.

36. The system of any one of claims 33-35, further comprising:a lock supported by the locator, the lock actuatable between a locked state and an unlocked state.

37. The system of claim 36, wherein the lock includes a lock sleeve disposed at least partially around the locator, the lock sleeve axially displaceable relative to the locator.

38. The system of claim 37, wherein the lock includes a plurality of detents, the lock sleeve overlapping with the detents to prevent the detents from shifting radially outward with the lock in the locked state.

39. The system of any one of claims 37 and 38, wherein the lock includes a lock spring, the lock spring biasing the lock sleeve to a position associated with the locked state.

40. The system of any one of claims 36-39, wherein a detent receiver is formed on an exterior of the actuator body, the lock engaging the actuator body at the detent receiver to lock the spray gun on the gun mount.

41. 1'he system of any one of claims 33-40, wherein the locator includes a first prong and a second prong, wherein the gun body is received between the first prong and the second prong with the spray gun mounted to the gun mount.

42. The system of any one of claims 25-41, wherein the spray gun is configured to mount to the gun mount by the spray gun shifting in a first direction along the spray axis to form a static mount interface between the spray gun and the gun mount and to form a fluidic driving interface between the spray gun and the gun mount.

43. The system of claim 42, wherein the static mount interface and the fluidic driving interface are simultaneously formed.

44. The system of any one of claims 42 and 43, wherein the spray gun is configured to dismount from the gun mount by the spray gun shifting in a second direction along the spray axis opposite the first direction to break the static mount interface and break the fluidic driving interface.

42. A method of spraying a spray fluid, the method comprising:pulling a trigger of a spray gun to open a spray valve and cause the spray gun to emit the spray fluid;releasing the trigger to closed the spray valve and stop emission of the spray fluid;engaging an automatic actuator mounted to a gun body of the spray gun with a gun mount to mount the spray gun to the gun mount; and opening the spray valve with the automatic actuator to cause the spray gun to emit the spray fluid.

43. The method of claim 42, wherein opening the spray valve with the automatic actuator to cause the spray gun to emit the spray fluid includes flowing working fluid to the automatic actuator to cause the automatic actuator to displace a needle of the spray valve away from a spray seat of the spray valve.

44. The method of any one of claims 42 and 43, wherein engaging the automatic actuator mounted to the gun body of the spray gun with the gun mount to mount the spray gun to the gun mount comprises:shifting the spray gun in a first direction along a mount axis such that a portion of the automatic actuator enters into the gun mount.

45. The method of claim 44, wherein engaging the automatic actuator mounted to the gun body of the spray gun with the gun mount to mount the spray gun to the gun mount further comprises:fixing the spray gun to the gun mount along the mount axis by engaging the automatic actuator with a lock.

46. The method of claim 45, wherein engaging the automatic actuator with the lock includes placing a plurality of detents into a detent receiver on an exterior of the automatic actuator.

47. The method of any one of claims 42-46, wherein engaging the automatic actuator mounted to the gun body of the spray gun with the gun mount to mount the spray gun to the gun mount includes engaging the gun body of the spray gun with the gun mount to prevent rotation of the spray gun relative to the gun mount.

48. The method of any one of claims 42-47, further comprising:dismounting the spray gun from the gun mount to break a static mounting interface between the automatic actuator and the gun mount and break a fluidic driving interface between the automatic actuator and

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