Handle for a fluid sprayer

Abstract

A fluid sprayer includes an assembly body that supports an electric motor and a drive that converts a rotational output of the electric motor to reciprocating linear motion for powering pumping by a pump. An assembly handle extends from a frame of the assembly body and is configured to be grasped to carry the fluid sprayer. The assembly handle includes a base arm that extends laterally and longitudinally as the base arm extends away from the frame. A grip arm extends longitudinally away from the base arm to overlap with a center of gravity of the fluid sprayer.

Description

[0001] HANDLE FOR A FLUID SPRAYER

[0002] CROSS-REFERENCE TO RELATED APPLICATION(S)

[0003] This application claims priority to U.S. Provisional Application No. 63 / 610,254 filed December 14, 2023 and entitled “HANDLE FOR A FLUID SPRAYER,” the disclosure of which is hereby incorporated by reference in its entirety.

[0004] BACKGROUND

[0005] The present disclosure relates generally to fluid pumping systems and parts thereof. More particularly, this disclosure relates to a handle for a fluid sprayer.

[0006] Fluid sprayers include pumps that pressure spray fluid and drive the spray fluid to a nozzle for outputting the spray fluid as an atomized fluid spray. Fluid sprayers include spray guns that can be held and manipulated by the user. The spray guns typically receive paint or other coating fluid under pressure and atomize the spray fluid. The spray fluid is typically put under pressure by a piston or diaphragm, which is referred to as airless spray.

[0007] Airless spray can typically range in pressure from about 500 pounds per square inch (psi) (about 3.45 Megapascal (MPa)) to about 7000 psi (about 48.26 MPa), however lower and higher pressures are possible. Due to the action of the piston or the diaphragm, uneven spray patterns can be developed, particularly on stopping and starting of spray or due to cyclical directional reversing of the piston or diaphragm. For example, internal chambers within the flowpath may contain pockets of spray fluid through which pressure waves can reverberate or otherwise echo and cause uneven spray patterns.

[0008] SUMMARY

[0009] According to an aspect of the disclosure, a fluid sprayer includes an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion; and an assembly handle extending from the frame and at least partially disposed outside of the housing. The assembly handle including a base arm that extends between a handle base and a junction, the base arm extending laterally and rearwardly towards the rear end as the base arm extends towards the junction; and a grip arm extending rearwardly from the junction, wherein the grip arm is cantilevered and extends to overlap with a center of gravity of the fluid sprayer. According to an additional or alternative aspect of the disclosure, a fluid sprayer includes an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame, the electric motor configured to rotate on a motor axis; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion, wherein the drive extends at least partially into a mounting cavity open through the front end, the mounting cavity configured such that a pump is at least partially disposed within the mounting cavity to mount to the frame and the drive; and an assembly handle extending from the frame and at least partially disposed outside of the housing. The assembly handle includes a base arm that extends laterally outward away from a reciprocation axis of the drive and extends rearwardly towards the rear end such that the base arm is dual-canted; and a grip arm extending rearwardly from the base arm, wherein the grip arm is cantilevered and extends to overlap with a center of gravity of the fluid sprayer, the grip arm disposed horizontally.

[0010] According to another additional or alternative aspect of the disclosure, a fluid sprayer including an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame, the electric motor configured to rotate on a motor axis; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion along a reciprocation axis; and an assembly handle extending from the frame and at least partially disposed outside of the housing. The assembly handle includes a handle base interfacing with the frame; a base arm extending laterally from the handle base and rearwardly towards the rear end from the handle base, the base arm extending laterally away from a reciprocation axis of the drive; and a grip arm extending rearwardly from the base arm and towards the rear end, wherein the grip arm is cantilevered from the base arm and extends to overlap with a center of gravity of the fluid sprayer, the grip arm extending parallel to the motor axis.

[0011] According to yet another additional or alternative aspect of the disclosure, a fluid sprayer including an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame, the electric motor configured to rotate on a motor axis; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion along a reciprocation axis; and an assembly handle extending from the frame and at least partially disposed outside of the housing. The assembly handle includes a base arm that extends laterally and rearwardly from a handle base of the assembly handle, the base arm extending rearwardly towards the rear end and extending laterally away from the motor axis; and a grip arm extending rearwardly from the base arm and towards the rear end, wherein the grip arm is cantilevered from the base arm and extends to overlap with a center of gravity of the fluid sprayer, and wherein the grip arm is spaced laterally in a direction towards the first lateral side from the center of gravity.

[0012] BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG. 1 is a simplified block diagram of a pumping system.

[0014] FIG. 2 is an isometric view of a pumping assembly.

[0015] FIG. 3A is a front elevational view of a fluid sprayer with an outer housing removed for clarity.

[0016] FIG. 3B is a side elevational view of the fluid sprayer with the outer housing removed for clarity.

[0017] FIG. 3C is an isometric view of the fluid sprayer with the outer housing removed for clarity.

[0018] FIG. 3D is an isometric view showing a portion of the fluid sprayer from a top side of the fluid sprayer with the outer housing removed for clarity.

[0019] DETAILED DESCRIPTION

[0020] The present disclosure relates to a handle for a fluid sprayer. The handle extends from a support frame of the fluid sprayer. The support frame can support a pump of the fluid sprayer. The handle extends outward relative to a top side of the sprayer. The handle can be cantilevered from the support frame. The handle is positioned to provide for easy carrying of the fluid sprayer, such as between areas on a job site or between job sites.

[0021] The handle of the fluid sprayer extends axially to radially overlap with a center of gravity of the fluid sprayer. Such a configuration provides for ergonomic and easy carrying of the fluid sprayer. Such positioning balances the forward and rearward portions of the fluid sprayer. The handle of the fluid sprayer is laterally offset from an axis of reciprocation of the pump. A base arm of the handle extends radially and axially outward relative to the axis of reciprocation of the pump from a base of the handle to a junction of the handle. A grip arm of the handle extends axially from the junction relative to a motor rotational axis of an electric motor of the fluid sprayer. The base arm of the handle is further canted such that the base arm extends towards a rear end of the fluid sprayer from the base and towards the junction.

[0022] Components can be considered to radially overlap when those components are disposed at common axial locations along an axis and such that a line extending radially from the 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 an axis such that an axial line parallel to the axis extends through each of the axially overlapping components. Components can be considered to circumferentially overlap when aligned about the axis at a common radial distance from the axis such that a circle centered on the axis passes through each of the circumferentially overlapping components.

[0023] FIG. 1 is a simplified block diagram of fluid pumping system 10. Fluid pumping system 10 includes pumping assembly 12, reservoir 14, supply line 16, and spray gun 18. Pumping assembly 12 includes assembly body 20, stand 22, pump 24, motor 26, drive 28, and controller 30. Stand 22 includes supports 32. Pump 24 includes pump body 34 and piston 36. Controller 30 includes control circuitry 38, memory 40, and user interface 42. Spray gun 18 includes gun handle 44, trigger 46, and nozzle 48.

[0024] Fluid pumping system 10 is configured to displace a fluid under pressure to a location downstream of pump. In the example shown, fluid pumping system 10 can also be considered to form a fluid spraying system as the downstream location is spray gun 18 that is configured to output sprays of the pumped fluid for application on a target substrate. It is understood, however, that not all examples are so limited and fluid pumping system 10 can be utilized to pump fluid to locations other than a spray gun 18.

[0025] Pumping assembly 12 is configured to draw a fluid (e.g., paint, varnish, water, oil, stains, finishes, aggregate, coatings, and solvents, amongst other options) from reservoir 14 and drive the fluid to spray gun 18 under pressure for spraying by spray gun 18. Fluid pumping system 10 can be an airless spray system in that fluid pumping system 10 does not rely on pressurized air to shape or atomize the fluid spray. Instead, pump 24 generates sufficient pressure to cause nozzle 48 to atomize the fluid into the fluid spray. Stand 22 supports other components of pumping assembly 12 relative to a support surface, such as a floor or the ground. Stand 22 is formed by one or more supports 32 that extend vertically relative to assembly body 20 and contact the support surface. Supports 32 can be formed by legs, rails, etc. Supports 32 are shown as extending from assembly body 20 proximate a front end of assembly body 20 (the side including pump 24) and a rear end of assembly body 20 opposite the front end. It is understood, however, that some examples of stand 22 include supports 32 extending from proximate the rear end of assembly body 20 only. For example, supports 32 can include a vertically-extending portion extending from assembly body 20 and a horizontal portion contacting the support surface. In some examples, stand 22 can include one or more wheels that contact the ground surface to facilitate moving of pumping assembly 12, such as around a job site.

[0026] Assembly body 20 is supported by stand 22 vertically above the support surface. Assembly body 20 supports and can enclose one or more components of pumping assembly 12. Pump 24 is supported by assembly body 20. Pump 24 can be removably connected to assembly body 20 such that pump 24 can be removed from assembly body 20 for servicing, storage, replacement, etc. Pump body 34 is connected to assembly body 20, such as by a clamp, support (e.g., ring or flange), interfaced threading, among other mounting options. Piston 36 is at least partially disposed within pump body 34 and is configured to reciprocate along an axis (axis PA in FIG. 1) to pump the fluid from reservoir 14 to the downstream location. It is understood that pump 24 can be of any form suitable for pumping the fluid to spray gun 18 under pressure for spraying. In some examples, pump 24 is a double displacement pump such that pump 24 outputs fluid during both an up or suction stroke of piston 36 and a down or pressure stroke of piston 36.

[0027] Motor 26 is operatively connected to pump 24 to cause pumping by pump 24. Motor 26 is disposed at least partially within assembly body 20. Motor 26 can be disposed fully within assembly body 20. Motor 26 is an electric motor in the example shown. For example, motor 26 can be a brushed or brushless direct current (DC) motor, an alternating current (AC) induction motor, among other options. Motor 26 is operably connected to piston 36 to drive reciprocation of piston 36 along pump axis PA to cause pumping by pump 24. Pump axis PA can be a vertical axis, among other options.

[0028] In the example shown, motor 26 and drive 28 cause reciprocation of piston 36. Motor 26 is connected to drive 28 and is configured to provide a rotational output to drive 28. Drive 28 is at least partially disposed within assembly body 20 and is configured to convert the rotational output from motor 26 into a linear reciprocating input to piston 36. Drive 28 can be of any form suitable for converting the rotational output to a linear reciprocating input, such as a cam, scotch yoke, eccentric crank, ball screw, among other options.

[0029] Controller 30 is operatively connected to motor 26 to control operation of motor 26 and thus control pumping by pump 24. Controller 30 can include one or more processors for carrying out the functions described herein. Controller 30 can be at least partially disposed within assembly body 20 or may be separate from assembly body 20. Controller 30 is operatively connected to other components of fluid pumping system 10 to control operation of the other components of fluid pumping system 10. Controller 30 is configured to store software, implement functionality, and / or process instructions. Controller 30 is configured to perform any of the functions discussed herein, including receiving an output from any sensor referenced herein, detecting any condition or event referenced herein, and controlling operation of any components referenced herein. Controller 30 can be of any suitable configuration for controlling operation of components of fluid pumping system 10 (e.g., motor 26), receiving signals from components of fluid pumping system 10 (e.g., a pressure transducer, a flow sensor, among other options), gathering data, processing data, etc. Controller 30 can include hardware, firmware, and / or stored software, and controller 30 can be entirely or partially mounted on one or more circuit boards. Controller 30 can be of any type suitable for operating in accordance with the techniques described herein.

[0030] Control circuitry 38, in one example, is configured to implement functionality and / or process instructions. For example, control circuitry 38 can be capable of processing instructions stored in memory 40. Examples of control circuitry 38 can include one or more of a processor, a microprocessor, a controller, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other equivalent discrete or integrated logic circuitry. Control circuitry 38 can be entirely or partially mounted on one or more circuit boards.

[0031] Memory 40 can be configured to store information before, during, and / or after operation. Memory 40, in some examples, is described as computer-readable storage media. In some examples, a computer-readable storage medium can include a non- transitory medium. The term “non-transitory” can indicate that the storage medium is not embodied in a carrier wave or a propagated signal. In certain examples, a non-transitory storage medium can store data that can, over time, change (e.g., in RAM or cache). In some examples, memory 40 is a temporary memory, meaning that a primary purpose of memory 40 is not long-term storage. Memory 40, in some examples, is described as volatile memory, meaning that memory 40 does not maintain stored contents when power to controller 30 is turned off. Examples of volatile memories can include random access memories (RAM), dynamic random access memories (DRAM), static random access memories (SRAM), and other forms of volatile memories. In some examples, memory 40 is used to store program instructions for execution by control circuitry 38. Memory 40, in one example, is used by software or applications to temporarily store information during program execution. Memory 40 can be configured to store larger amounts of information than volatile memory. Memory 40 can further be configured for long-term storage of information. In some examples, memory 40 includes non-volatile storage elements. Examples of such non-volatile storage elements can include magnetic hard discs, optical discs, flash memories, or forms of electrically programmable memories (EPROM) or electrically erasable and programmable (EEPROM) memories.

[0032] User interface 42 is configured to receive inputs from a user to provide to controller 30 and / or provide outputs to the user. User interface 42 can be any graphical and / or mechanical interface that enables user interaction with controller 30. For example, user interface 42 can implement a graphical user interface displayed at a display device of user interface 42 for presenting information to and / or receiving input from a user. User interface 42 can include graphical navigation and control elements, such as graphical buttons or other graphical control elements presented at the display device. User interface 42, in some examples, includes physical navigation and control elements, such as physically actuated buttons or other physical navigation and control elements. For example, user interface 42 can be or include a dial, slider, one or more buttons, etc. In general, user interface 42 can include any input and / or output devices and control elements that can enable user interaction with controller 30. In some examples, user interface 42 is configured to receive an output setting from a user. The output setting sets a target output parameter for the fluid output by fluid pumping assembly, such as a target pressure or a target flow rate, among other options. User interface 42 can be disposed on or form a portion of an exterior of assembly body 20.

[0033] Transducer 50 is configured to provide information regarding one or more parameters of the fluid output by pumping assembly 12. For example, transducer 50 can be configured as a pressure sensor configured to provide pressure information to controller 30, transducer 50 can be a flow sensor configured to provide flow rate information to controller 30, transducer 50 can include both pressure and flow sensing elements to provide both pressure and flow rate information to controller 30, among other options. Transducer 50 can also be referred to as a sensor.

[0034] Motor sensor 51 is configured to provide information regarding one or more operating parameters of the motor 26 to controller 30. For example, motor sensor 51 can be a speed sensor configured to generate information regarding the rotational speed of a rotor of the motor 26. For example, motor sensor 51 can be one or more hall effect sensors, an encoder, etc.

[0035] Spray gun 18 is configured to emit the spray fluid as an atomized fluid spray through nozzle 48. Trigger 46 is operatively connected to a valve (not shown) within spray gun 18 to open and close the flowpath through nozzle 48. The user can grasp gun handle 44 with a single hand and manipulate the orientation of spray gun 18 to aim spray gun 18. The user can actuate trigger 46 with the hand grasping gun handle 44 to control spraying by spray gun 18.

[0036] During operation, controller 30 provides commands to motor 26 to cause operation of motor 26. For example, controller 30 can command motor 26 to operate to cause pump 24 to displace fluid from reservoir 14 and through supply line 16 based on an input from transducer 50 indicating that pumping is required. For example, transducer 50 can provide pressure information indicating a drop in fluid pressure, indicative of spray gun 18 being actuated to output the fluid.

[0037] Motor 26 generates a rotational output that is provided to drive 28. Drive 28 is driven by motor 26 and outputs linear reciprocating motion to piston 36. Piston 36 reciprocates on pump axis PA to draw fluid from reservoir 14 and drive the fluid downstream through supply line 16. To cause spraying, the user actuates trigger 46 to open the valve in spray gun 18 and the fluid is emitted through nozzle 48 as an atomized fluid spray.

[0038] FIG. 2 is an isometric view of pumping assembly 12. Assembly body 20, stand 22, pump 24, suction assembly 52, control assembly 54, and power supply 56. Assembly body 20 includes pump support 58, housing 60, and assembly handle 62. Stand 22 includes supports 32. Pump body 34 and pump mount 64 of pump 24 are shown. Suction assembly 52 includes pump connector 66, inlet tube 68, and hose 70.

[0039] Pumping assembly 12 is configured to draw fluid from a reservoir (e.g., reservoir 14 (FIG. 1)) and drive the fluid to a downstream location (e.g., spray gun 18 (FIG. 1)) under pressure. Pumping assembly 12 can also be referred to as a fluid sprayer. Assembly body 20 encloses various other components of pumping assembly 12 and can support various components of pumping assembly 12. Housing 60 forms at least a portion of the exterior of pumping assembly 12. Motor 26 and drive 28 are each at least partially disposed within housing 60.

[0040] Assembly handle 62 projects from a top side of housing 60. Assembly handle 62 can, in some examples, be connected to housing 60. Assembly handle 62 can, in some examples, be connected to a frame disposed at least partially within housing 60. Assembly handle 62 provides a location for a user to interface with pumping assembly 12 to move pumping assembly 12 between locations, such as around a job site. The user can grasp assembly handle 62 to pick up and carry pumping assembly 12.

[0041] Pump support 58 is configured to interface with pump 24 to support pump 24 on assembly body 20. For example, pump support 58 can be fully or partially formed by a portion of a frame 74 of the assembly body 20, the frame 74 at least partially disposed within housing 60. In the example shown, a portion of assembly body 20 extends into a gap formed by pump mount 64 of the pump 24 to support the pump 24. The portion of the assembly body 20 that extends into the gap can be considered to form the pump support 58. In some examples, the pump support 58 can be considered to form or can include a flange that extends into the gap to support the pump 24.

[0042] Pump mount 64 is configured to interface with pump support 58 to mount pump 24 to assembly body 20. For example, pump mount 64 can be formed by a pair of rings that define a gap therebetween with the gap configured to receive a portion of the pump support 58 to mount pump 24 on assembly body 20.

[0043] Pump 24 is mounted to assembly body 20 and to drive 28. The piston 36 of pump 24 is connected to drive 28 to be reciprocated by the drive 28. Pump body 34 of pump 24 is connected to assembly body 20 to be supported by assembly body 20. Pump 24 can be considered to be mounted at a static interface and a dynamic interface, the static interface between pump mount 64 and assembly body 20 and the dynamic interface between piston 36 and drive 28.

[0044] Control assembly 54 is supported by assembly body 20. Control assembly 54 is disposed outside of housing 60. Control assembly 54 is fluidly connected to pump 24 to receive the fluid output by pump 24. Control assembly 54 can house a filter among other options. An output hose (not shown) extends between an outlet of pump 24 and an inlet of control assembly 54. Control assembly 54 is configured to control output of the fluid from pumping assembly 12. For example, control assembly 54 can be placed in a priming state in which fluid provided to control assembly 54 is output back to reservoir 14 during priming of pump 24. Control assembly 54 can be placed in an output state in which the fluid is output through outlet fitting 72 to the supply line (e.g., supply line 16) to be provided to the downstream location, such as for spraying.

[0045] Suction assembly 52 is fluidly connected to pump 24. An end of suction assembly 52 opposite the end connected to pump 24 is configured to extend into the reservoir 14 such that the fluid is drawn into the suction assembly 52 from reservoir 14 and provided to pump 24. Pump connector 66 is connected to pump body 34 to connect suction assembly 52 to pump 24. For example, pump connector 66 can be a threaded connector configured to threadedly connect suction assembly 52 with pump body 34. Inlet tube 68 extends between pump 24 and hose 70. Hose 70 extends from inlet tube 68 and is configured to provide fluid flow to inlet tube 68. Hose 70 can be formed as a flexible hose. Inlet tube 68 can be rigid. It is understood that in some examples the suction assembly 52 can extend vertically downward from pump 24 and into a reservoir 14 disposed directly vertically below the pump 24. In such an example the suction assembly 52 can include a rigid body and may not include inlet tube 68 and a flexible hose 70.

[0046] Stand 22 supports other components of pumping assembly 12 on the support surface. Supports 32 extend vertically downward below the bottom end of pump 24 and interface with the support surface. In the example shown, the supports 32 are formed as a plurality of legs. In the example shown, stand 22 includes four legs, though it is understood that other numbers of legs are possible.

[0047] Power supply 56 is configured to provide electrical power to electrically powered components of pumping assembly 12, such as motor 26 and controller 30. In the example shown, power supply 56 is formed as a power cord that is configured to plug into a wall socket. It is understood, however, that is various other examples the power supply 56 can be formed by one or more batteries. For example, the one or more batteries can be removable and rechargeable.

[0048] FIG. 3A is a front elevation view of pumping assembly 12. FIG. 3B is a side elevation view of pumping assembly 12. FIG. 3C is a first isometric view of pumping assembly 12. FIG. 3D is a second partial isometric view of pumping assembly 12 from a top side of pumping assembly 12. Pumping assembly 12 is shown with housing 60 and pump 24 removed for clarity. Assembly body 20, stand 22, motor 26, drive 28, control assembly 54, and assembly handle 62 of pumping assembly 12 are shown. Pump support 58 and frame 74 of assembly body 20 are shown. Assembly handle 62 includes handle base 76, base arm 78, junction 80, and grip arm 82. Stand 22 includes supports 32. Control assembly 54 includes filter housing 84 and assembly cap 86.

[0049] Assembly body 20 is configured to support other components of pumping assembly 12. Stand 22 is connected to frame 74 of assembly body 20. Supports 32 extend from a base of stand 22 and are configured to interface with a support surface to support pumping assembly 12 on the support surface. Stand 22 can be considered to form a portion of frame 74 that supports other components of pumping assembly 12.

[0050] Frame 74 includes bearing housing 88 at a front end 90 of pumping assembly 12. The bearing housing 88 can support one or more bearings that support rotatable components of pumping assembly 12. For example, the bearing housing 88 can support a bearing that supports a rotor of the motor 26.

[0051] Motor 26 is supported by frame 74. A rotor of motor 26 is configured to rotate on motor axis MA to generate a rotational output. Drive 28 is connected to motor 26 to receive a rotational output from motor 26. Drive is configured to convert the rotational output into linear reciprocating motion that is provided to the pump 24 to power pumping by the pump 24. In the example shown, a portion of drive 28 extends into mounting cavity 104 within which a portion of pump 24 is disposed with pump 24 mounted to assembly body 20. In the example shown, drive 28 includes crank 100 and driving link 102. driving link 102 is configured to reciprocated on a reciprocation axis RA and is configured to connect to the piston 36 of the pump 24 to drive reciprocation of the piston 36. Crank 100 is configured to receive the rotational output from motor 26. The reciprocation axis RA is disposed coaxially with the pump axis PA with pump 24 mounted to assembly body 20. Pump support 58 is formed by a portion of frame 74 in the example shown.

[0052] Control assembly 54 is mounted to frame 74. Control assembly 54 is configured to receive the fluid output by the pump 24 and direct that fluid downstream from control assembly 54. Control assembly 54 can be placed in a priming state in which the control assembly 54 directs the fluid back to a fluid reservoir (e.g., reservoir 14) and control assembly 54 can be placed in a spray state in which the control assembly 54 directs the fluid to the spray gun (e.g., spray gun 18). Filter housing 84 is connected to frame 74. Filter housing 84 is configured to contain a filter that filters contaminants out of the spray fluid prior to the fluid being directed downstream to the spray gun 18. Cap 86 is disposed on a top of filter housing 84.

[0053] In the example shown, the pumping assembly 12 includes a front end 90, a rear end 92, lateral sides 94a, 94b, a top side 96, and a bottom side 98, all of which are generally indicated and it is understood that the exteriors of one or more of which can be formed by housing 60 with housing 60 mounted over frame 74. The mounting cavity 104 is open through the front end 90. The mounting cavity 104 is also open through the bottom side 98. In the example shown, the mounting cavity 104 is formed in bearing housing 88. The control assembly 54 is disposed on lateral side 94a.

[0054] Assembly handle 62 provides a location for a user to interface with assembly body 20 such as to pick up and carry pumping assembly 12. Assembly handle 62 projects outwards relative to other portions of frame 74. In the example shown, assembly handle 62 is formed separately from other components of frame 74 and connected to frame 74 by fastener 106. It is understood, however, that not all examples are so limited. For example, assembly handle 62 can, in some examples, be formed monolithically with other portions of frame 74 such as by being cast together. For example, assembly handle 62 and bearing housing 88 can be monolithically formed, among other options.

[0055] Handle base 76 is connected to frame 74. In the example shown, handle base 76 is connected to frame 74 by fastener 106 extending through handle base 76 and into frame 74, though it is understood that not all examples are so limited. In the example shown, the handle base 76 is disposed on an opposite side of the bearing housing 88 from motor 26. In the example shown, the handle base 76 interfaces with a side of frame 74 oriented towards the front end 90. In the example shown, the handle base 76 axially overlaps with other portions of frame 74 relative to motor axis MA.

[0056] Base arm 78 extends from handle base 76. Base arm 78 is configured to extend through housing 60 (as shown in FIG. 2) such that a portion of assembly handle 62 is disposed within housing 60 and a portion of assembly handle 62 is disposed outside of housing 60. Base arm 78 extends above the top side 96 of pumping assembly 12. Base arm 78 is angled such that base arm 78 extends laterally outward between handle base 76 and junction 80. In the example shown, base arm 78 can be considered to extend radially outward relative to motor axis MA. In the example shown, base arm 78 is laterally canted such that base arm 78 does not extend directly vertically upward. In the example shown, base arm 78 can be considered to extend both radially and axially relative to the pump axis PA and the reciprocation axis RA.

[0057] Base arm 78 is further canted such that base arm 78 extends axially and radially relative to motor axis MA. The base arm 78 is canted such that the base arm 78 extends towards rear end 92 as the base arm 78 extends from handle base 76 and towards junction 80. Base arm 78 extends to radially overlap with the portion of the frame 74 that handle base 76 interfaces with relative to the motor axis MA. Base arm 78 extends to axially overlap with the portion of frame 74 that handle base 76 interfaces with relative to the pump axis PA and axis of reciprocation RA. In the example shown, base arm 78 extends from one side of bearing housing 88 towards an opposite side of bearing housing 88 by extending over bearing housing 88. The handle base 76 is laterally offset from reciprocation axis RA of the drive 28 and the base arm 78 extends laterally away from the drive 28.

[0058] In the example shown, base arm 78 can be considered to have dual-canting in that base arm 78 extends laterally (e.g., outwards towards lateral side 94a) and longitudinally (e.g., towards rear end 92). The assembly handle 62 can be considered to have dual -canting in that the base arm 78 extends laterally and longitudinally away from handle base 76. The dual-canting of assembly handle 62 provides for a compact configuration of assembly handle 62, requiring less material to manufacture and thereby providing cost savings.

[0059] Base arm 78 includes a front surface 79, a rear surface 81, an inner surface 83, and an outer surface 85. In the example shown, each of the surfaces 79, 81, 83, and 85 are angled such that the surfaces do not extend straight vertically, laterally, or longitudinally. In the example shown, the front surface 79 is oriented towards the front end 90 of pumping assembly 12. The front surface 79 is further oriented to face vertically upwards in addition to facing towards the front end 90. The rear surface 81 is oriented towards the rear end 92. The rear surface 81 is further oriented to face vertically downwards and towards the assembly body 20 in addition to facing towards the rear end 92. The inner surface 83 is oriented in a same lateral direction as lateral side 94b. The inner surface 83 is further oriented to face vertically upwards in addition to facing laterally in a same lateral direction as lateral side 94b. The outer surface 85 is oriented in a same lateral direction as lateral side 94a. The outer surface 85 is further oriented to face vertically downwards in addition to facing laterally in a same lateral direction as lateral side 94a.

[0060] The base arm 78 can be considered to have a multi-axis pitch in that the base arm 78 is slanted both laterally and longitudinally as base arm 78 extends away from frame 74. The base arm 78 extends both laterally outward and rearwardly as the base arm 78 extends away from handle base 76. The base arm 78 extends such that grip arm 82 is angularly offset from the handle base 76 both laterally and longitudinally.

[0061] Junction 80 is disposed at the intersection between base arm 78 and grip arm 82. Grip arm 82 extends from junction 80 to a distal end of assembly handle 62. Assembly handle 62 is cantilevered such that one end of assembly handle 62 is connected to frame 74 while the other end of assembly handle 62 is not connected to frame 74. In the example shown, grip arm 82 is cantilevered from base arm 78.

[0062] In the example shown, grip arm 82 extends axially relative to motor axis MA. In some examples, grip arm 82 extends parallel to motor axis MA. The grip arm 82 extends towards the rear end 92 from junction 80. In the example shown, grip arm 82 does not extend beyond rear end 92. Instead, grip arm 82 extends partially, but not fully, along a length of motor 26. The grip arm 82 extends horizontally from the junction 80. Grip arm 82 is disposed on one lateral side of mounting cavity 104 laterally outward from mounting cavity 104.

[0063] Grip arm 82 extends to overlap with a center of gravity of pumping assembly 12. The grip arm 82 overlapping with the center of gravity of pumping assembly 12 balances pumping assembly 12 when the user grasps grip arm 82 to pick up pumping assembly 12. In the example shown, the grip arm 82 is spaced laterally from the center of gravity with the pumping assembly 12 supported on the ground surface by the stand 22. The balanced pumping assembly 12 facilitates easier and more ergonomic carrying of pumping assembly. Further, the grip arm 82 being laterally offset from the center of gravity causes the pumping assembly 12 to swing away from the user when the pumping assembly 12 is picked up by the user. As such, the legs supporting the pumping assembly 12 (e.g., the supports 32) swing away from the user such that the legs do not interfere with the user while walking and carrying the pumping assembly 12.

[0064] The grip arm 82 is laterally offset from handle base 76. The grip arm 82 does not overlap with the handle base 76, as best shown by bracketing lines BL in FIG. 3 A. The grip arm 82 is laterally offset from the handle base 76. The grip arm 82 is laterally offset from an interface between assembly handle 62 and frame 74.

[0065] In the example shown, the connected end 87 of grip arm 82, at which grip arm 82 is connected to base arm 80, is longitudinally offset from handle base 76. The connected end 87 of grip arm 82 does not overlap with handle base 76. Instead, the connected end 87 of grip arm 82 is disposed rearward of the handle base 76. The connected end 87 of grip arm 82 can also be considered to form a top corner of the assembly handle 62.

[0066] In the example shown, grip arm 82 includes arm base 108 and arm cover 110. Arm base 108 extends from junction 80. Arm cover 110 is at least partially disposed over arm base 108 and is supported by arm base 108. Arm base 108 can be monolithically formed with other portions of assembly handle 62, such as with base arm 78 and junction 80. Arm base 108 and arm cover 110 can be formed from different materials. For example, arm base 108 can be formed from a metal to provide structural stability to assembly handle 62 and arm cover 110 can be formed from a non-metallic material, such as plastic, for user comfort and reduced weight. In the example shown, the arm cover 110 is exposed on a top side of grip arm 82, a bottom side of grip arm 82, and on both lateral sides of grip arm 82. In the example shown, the arm cover 110 is exposed at the distal longitudinal end of grip arm 82. In the example shown, the exterior of grip arm 82 is fully formed by arm cover 110 at at least one location along the length of grip arm 82.

[0067] The base arm 78 extending rearwardly from handle base 76 to junction 80 provides for improved structural stability of assembly handle 62. The angle a between base arm 78 and grip arm 82 is an obtuse angle. Such a configuration provides for a more rigid assembly handle 62 than if base arm 78 extended straight vertically to junction 80. The base arm 78 extending rearwardly to junction 80 also decreases the overall length of grip arm 82 relative to a grip arm 82 extending from a straight vertical base arm 78. Such a configuration reduces the lever arm of grip arm 82 providing for more ergonomic carrying for the user.

[0068] Assembly handle 62 is pitched both laterally and longitudinally. In the example shown, the base arm 78 forms the canted portion of assembly handle 62 that offsets junction 80 both laterally and longitudinally from the interface between handle base 76 and frame 74. The base arm 78 extends away from pump axis PA such that a closest portion of assembly handle 62 to pump axis PA is formed at the interface between assembly handle 62 and frame 74.

[0069] In the example shown, assembly handle 62 extends from handle base 76 such that grip arm 82 is disposed between control assembly 54 and crank 100. The grip arm 82 is disposed vertically above motor 26 and drive 28. The grip arm 82 is disposed vertically above the control assembly 54 in the example shown. In the example shown, the grip arm 82 provides a vertically highest portion of pumping assembly 12.

[0070] The assembly handle 62 is disposed fully on one lateral side of the motor axis MA. The assembly handle 62 does not cross over the motor axis MA directly vertically above or directly vertically below the motor axis MA in the example shown. The grip arm 82 being laterally offset from the motor axis MA facilitates ergonomic carrying of pumping assembly 12. When the user picks up the pumping assembly 12 at assembly handle 62 the pumping assembly 12 will pivot about grip arm 82 in circumferential direction CD1 about motor axis MA. The pivoting will vertically align the center of gravity of pumping assembly 12 with the grip arm 82. Typically the user will reach over the top side 96 from lateral side 94b to grasp grip arm 82 such that the pivoting causes the supports 32 to shift out of the way of the user as the user carries the pumping assembly 12. As such, the user does not need to worry about bumping their leg into the supports 32 of the stand 22 and instead can freely carry the pumping assembly 12.

[0071] Assembly handle 62 provides improved ergonomic functionality. Assembly handle 62 extends to overlap with the center of gravity of pumping assembly 12 providing for balanced, ergonomic carrying of pumping assembly 12 when grasping grip arm 82. The assembly handle 62 is cantilevered, allowing for easy access to and release of assembly handle 62. Assembly handle 62 is dual-canted such that assembly handle 62 extends both laterally and longitudinally away from handle base 76. In the examples shown, the base arm 78 extends laterally away from handle base 76 and extends rearward from handle base 76. The dual-canting of base arm 78 provides for a compact configuration that provides material savings and thereby reduces costs. Further, reducing the material in assembly handle 62 also reduces weight, providing for a more ergonomic carrying experience.

[0072] Base arm 78 extending rearwardly as base arm 78 extends away from handle base 76 reduces the overall length that grip arm 82 needs to extend to overlap with the center of gravity of pumping assembly 12. A reduced length of grip arm 82 reduces the length of any lever arm, providing for more ergonomic carrying of pumping assembly 12. The reduced length of grip arm 82 further reduces material costs and weight.

[0073] Grip arm 82 extends horizontally. In the example shown, grip arm 82 includes arm cover 110 that is mounted on arm base 108. Arm cover 110 is configured to interface with the hand of the user when the user grasps grip arm 82. The arm cover 110 can be made of a softer material than metal, improving ergonomics and reducing weight.

[0074] While the invention(s) 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(s) without departing from the essential scope thereof. Therefore, it is intended that the invention(s) not be limited to the particular embodiment(s) disclosed, but that the invention(s) may include all embodiments falling within the scope of the appended claims. Any single feature, or any combination of features from one embodiment show herein, may be utilized in a different embodiment independent from the other features shown in the embodiment herein. Accordingly, the scope of the invention(s) and any claims thereto are not limited to the particular to the embodiments and / or combinations of the features shown herein, but rather can include any combination of one, two, or more features shown herein.

Claims

CLAIMS:

1. A fluid sprayer comprising: an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion; and an assembly handle extending from the frame and at least partially disposed outside of the housing, the assembly handle comprising: a base arm that extends between a handle base and a junction, the base arm extending laterally and rearwardly towards the rear end as the base arm extends towards the junction; and a grip arm extending rearwardly from the junction, wherein the grip arm is cantilevered and extends to overlap with a center of gravity of the fluid sprayer.

2. The fluid sprayer of claim 1, wherein an angle between the grip arm and the base arm is an obtuse angle.

3. The fluid sprayer of any one of claims 1 and 2, wherein the assembly handle is disposed fully on one lateral side of a rotational axis of the electric motor.

4. The fluid sprayer of any one of claims 1 and 2, wherein the handle does not extend directly vertically over a rotational axis of the electric motor.

5. The fluid sprayer of any one of claims 1-4, wherein the grip arm is disposed between a control assembly configured to house a filter and a crank of the drive.

6. The fluid sprayer of any one of claims 1-5, wherein the grip arm is disposed laterally outward of a mounting cavity formed in the frame, the mounting cavity configured such that at least a portion of a pump body of a pump is disposed in the mounting cavity with the pump mounted to the frame, wherein the mounting cavity is open through the front end.

7. The fluid sprayer of any one of claims 1-6, wherein the assembly handle is connected to the frame by a fastener extending through the assembly handle and into the frame.

8. The fluid sprayer of claim 7, wherein the fastener extends through the handle base.

9. The fluid sprayer of any one of claims 1-8, wherein the handle base is disposed on a first side of a bearing housing of the frame and the electric motor is disposed on a second opposite side of the bearing housing.

10. The fluid sprayer of any one of claims 1-9, wherein the handle base is laterally offset from a reciprocation axis of the drive, and wherein the base arm extends laterally away from the drive.

11. The fluid sprayer of any one of claims 1-10, wherein the grip arm does not extend to the rear end.

12. The fluid sprayer of any one of claims 1-11, wherein the grip arm includes an arm base formed from a metal and an arm cover at least partially covering the arm base, the arm cover formed from a plastic.

13. The fluid sprayer of any one of claims 1-12, wherein the grip arm is a vertically highest portion of the fluid sprayer.

14. A fluid sprayer comprising: an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame, the electric motor configured to rotate on a motor axis; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion, wherein the drive extends at least partially into a mounting cavity open through the front end, the mounting cavity configured such that a pump is at least partially disposed within the mounting cavity to mount to the frame and the drive; and an assembly handle extending from the frame and at least partially disposed outside of the housing, the assembly handle comprising: a base arm that extends laterally outward away from a reciprocation axis of the drive and extends rearwardly towards the rear end such that the base arm is dual-canted; anda grip arm extending rearwardly from the base arm, wherein the grip arm is cantilevered and extends to overlap with a center of gravity of the fluid sprayer, the grip arm disposed horizontally.

15. The fluid sprayer of claim 14, wherein the assembly handle is fully disposed on one lateral side of the motor axis.

16. The fluid sprayer of claim 14, wherein the assembly handle does not cross directly vertically over the motor axis.

17. The fluid sprayer of claim 14, wherein the assembly handle is fully disposed on one lateral side of the reciprocation axis.

18. The fluid sprayer of any one of claims 14-17, wherein the grip arm is disposed between a control assembly connected to the frame and the motor axis, the control assembly configured to receive fluid output from the pump and configured to house a filter.

19. The fluid sprayer of any one of claims 14-18, wherein the assembly handle forms a highest vertical portion of the fluid sprayer.

20. A fluid sprayer comprising: an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame, the electric motor configured to rotate on a motor axis; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion along a reciprocation axis; and an assembly handle extending from the frame and at least partially disposed outside of the housing, the assembly handle comprising: a handle base interfacing with the frame; a base arm extending laterally from the handle base and rearwardly towards the rear end from the handle base, the base arm extending laterally away from a reciprocation axis of the drive; and a grip arm extending rearwardly from the base arm and towards the rear end, wherein the grip arm is cantilevered from the basearm and extends to overlap with a center of gravity of the fluid sprayer, the grip arm extending parallel to the motor axis.

21. The fluid sprayer of claim 20, wherein the handle base is formed separately from and connected to the frame.

22. A fluid sprayer comprising: an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side; an electric motor disposed in the assembly body and supported by the frame, the electric motor configured to rotate on a motor axis; a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion along a reciprocation axis; and an assembly handle extending from the frame and at least partially disposed outside of the housing, the assembly handle comprising: a base arm that extends laterally and rearwardly from a handle base of the assembly handle, the base arm extending rearwardly towards the rear end and extending laterally away from the motor axis; and a grip arm extending rearwardly from the base arm and towards the rear end, wherein the grip arm is cantilevered from the base arm and extends to overlap with a center of gravity of the fluid sprayer, and wherein the grip arm is spaced laterally in a direction towards the first lateral side from the center of gravity.

23. A fluid sprayer comprising: an assembly body having a frame and a housing at least partially enclosing the frame, the assembly body having a front end, a rear end, a first lateral side, a second lateral side, a top side, and a bottom side, the frame comprising a plurality of legs that support the assembly body; an electric motor disposed in the assembly body and supported by the frame;a drive at least partially disposed in the assembly body and supported by the frame, the drive connected to the electric motor and configured to convert a rotational output from the electric motor to linear reciprocating motion; and an assembly handle extending from the frame and at least partially disposed outside of the housing, the assembly handle comprising: a base arm that extends between a handle base and a junction, the base arm projecting away from the frame in an orientation that is tilted both laterally and rearwardly such that the junction is laterally to the side of the handle base and the junction is rearward of the handle base; and a grip arm extending rearwardly from the junction, the grip arm extending horizontally, wherein the grip arm is cantilevered and the assembly handle defines an upper-most part of the fluid sprayer.

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