Spray gun

Abstract

A spray gun for use with one or more aerosol containers includes a trigger assembly (20) pivotable relative to a handle grip (30), wherein the trigger assembly (20) is adapted to activate a spray valve of the one or more aerosol containers when actuated by one or both of a user's finger and palm, wherein the spray direction is generally away from the user.

Description

Technical Field

[0001] The present invention relates to a spray gun, and more particularly to a spray gun for use with one or more aerosol containers that can be simultaneously dispensed upon actuation. Background Technology

[0002] Several spray painting tools have been designed in the past. Many spray guns have been introduced, which connect an aerosol container to a handheld device with a trigger assembly for actuating the aerosol container, typically activated by the user's finger. Prolonged use can lead to finger fatigue, resulting in inconsistent spraying of the contents from the aerosol container. Spray guns capable of holding more than one aerosol container are uncommon. For those that do, the spray contents from the aerosol container are typically redirected from the container into a single tube before being dispensed in a single spray. Particularly for spray painting, the spray contents are mixed in one tube before being sprayed from the gun, thus causing pigment mixing. No spray gun optimizes the mixing of the spray contents, especially with respect to pigments, once the liquid has been dispensed from the aerosol container.

[0003] US Patent Publication No. US9814227B2 discloses a fluid jetting device including an inlet and a first outlet and a second outlet, wherein a first actuator and a second actuator are respectively communicative to at least one of the outlets. A channel network of the fluid jetting device communicates with the first and second actuators through the first and second outlets. Furthermore, a splitter structure is provided in the channel network for enabling the first actuator to communicate with the first outlet and the second actuator to communicate with the second outlet. Another US Patent Publication No. US20140239094A1 describes an adjustable dual-chamber jetting device including a device body with a handle, a trigger, a first solution channel configured to draw a first solution from the first chamber when the first chamber is pressurized, a second solution channel configured to draw a second solution from the second chamber when the second chamber is pressurized, a valve core connected to an adjustment knob, an output solution channel configured to transport an output solution, and a nozzle assembly connected to the output solution channel. Chinese patent publication CN1313214C ​​discloses a two-component self-spraying device, which includes a spray gun connected to a feed pipe mounted on a material storage tank. The two-component self-spraying device is connected to a nozzle, a gun body, and a handle. Two mixing chambers and mixing balls within the two mixing chambers are disposed in the nozzle. A device for controlling the material flow rate and material flow ratio is located on the handle. Another Chinese patent publication CN101722119B discloses a dual-nozzle spray gun, which includes a container body with an internal partition dividing it into two paint containers. Each paint container contains a paint switch connected to a lever seat on the handle via a control lever. Two nozzle bodies corresponding to the two paint containers are also provided, located at the bottom of the paint containers. Each nozzle body has a spray cap at its front end and a paint adjustment knob at its rear end. Summary of the Invention

[0004] The object of this invention is to provide a more efficient method for spraying onto a target surface, wherein at least two aerosol canisters can be actuated simultaneously during operation. Another object of this invention is to optimize the mixing of the contents from the aerosol canisters when they are tilted accordingly. Furthermore, another object of this invention is to provide a more stable accessory or component that uses a trigger actuated by the user's palm.

[0005] One aspect of the invention is to provide a spray gun for use with one or more aerosol containers, the spray gun comprising: a trigger assembly pivotable relative to a handle grip, wherein the trigger assembly is adapted to actuate a spray valve of one or more aerosol containers when actuated by one or both of a user's fingers and palm, wherein the spray direction is generally away from the user.

[0006] Preferably, the trigger assembly includes one or more receivers at the front end of the assembly adapted to dock with the aerosol container, wherein the receivers have a front opening to allow ejection of contents from the aerosol container.

[0007] Preferably, the trigger assembly includes a lateral extension at the front end of the assembly, such that two receiving portions are located at opposite ends of the lateral extension.

[0008] Preferably, the receiving part includes a receiving opening for docking an aerosol container formed on one or both of the upper and lower ends of the receiving part.

[0009] Preferably, the receiving portion having a receiving opening formed at its upper end is tilted upward or downward at an angle of 0° to 30° relative to the horizontal axis of the top portion of the body of the spray gun, such that the angle of spray is parallel to the body.

[0010] Preferably, the receiving portion having a receiving opening formed at its lower end is perpendicular to the body of the spray gun.

[0011] Preferably, the receiving part further includes a hole provided on the right or left side of the receiving part to allow adjustment of the spray valve of the aerosol container.

[0012] Preferably, the trigger assembly includes a trigger body formed by a first part and a second part for receiving forces applied by the user's palm and the user's fingers, respectively, to trigger the first part or the second part by moving the trigger assembly from its original position to an actuated position, to trigger a third part for actuating the spray valve of the aerosol container when the trigger assembly is in the actuated position, and to trigger a fourth part disposed near the trigger body for returning the trigger assembly to its original position.

[0013] Preferably, the first and second portions are detachably attached to the trigger assembly.

[0014] Preferably, the third part is configured to rotate about the pivot point and move up or down to actuate the spray valve of the aerosol container when one or both of the first and second parts are triggered.

[0015] Preferably, the fourth part is an elastic member configured to provide considerable resistance when one or both of the first and second parts receive a force by pushing or pulling inward, and to return the trigger assembly to its original position after the force applied to one or both of the first and second parts is released.

[0016] Preferably, the handle grip includes a squeeze member disposed perpendicularly to the trigger assembly for receiving a user's finger when the handle grip is held.

[0017] Those skilled in the art will readily understand that the present invention is highly suitable for achieving the stated objectives and advantages, as well as those inherent thereto. The embodiments described herein are not intended to limit the scope of the invention. Attached Figure Description

[0018] To facilitate understanding of the invention, preferred embodiments are shown in the accompanying drawings, and the invention, its construction and operation, and its many advantages will be readily understood and appreciated when considered in conjunction with the following description.

[0019] Figure 1 A preferred embodiment of a spray gun for use with one or more aerosol containers is shown.

[0020] Figure 2 A cross-sectional view of the spray gun is shown.

[0021] Figure 3 An alternative embodiment of the spray gun is shown.

[0022] Figure 4 An isometric view showing an alternative embodiment of the spray gun. Detailed Implementation

[0023] The present invention will now be described with reference to preferred embodiments and the accompanying description and drawings. However, it is to be understood that the description is limited to the preferred embodiments of the invention merely for ease of discussion, and that those skilled in the art are encouraged to devise various modifications without departing from the scope of the appended claims.

[0024] Figure 1 A preferred embodiment of a spray gun for use with one or more aerosol containers is shown. The spray gun includes a trigger assembly 20 pivotable relative to a handle grip 30, wherein the trigger assembly 20 is adapted to actuate the spray valves of one or more aerosol containers when actuated by one or both of the user's fingers and palm, wherein the spray direction is generally away from the user. In a preferred embodiment, the spray gun includes a body 10 or a housing formed of a first portion 11 and a second portion 12, which are respectively connected to each other by compression fitting or by screws. The first portion 11 may include internally a plurality of hollow tubes 111a, 111b that conform to a plurality of cylindrical extrusions [not shown] in the second portion 12 to facilitate assembly of the body 10 of the spray gun. Preferably, the body 10 of the spray gun may be made of a lightweight and robust material, such as plastic, resin, etc. Furthermore, the handle grip 30 extends downward at an angle from the top portion 13 of the main body 10 and can be designed with an ergonomic construction so that the user can easily grip it with one hand, such as... Figure 2As shown in the diagram. Preferably, the top portion 13 of the body 10 can be a typical rectangular shape, and the handle grip 30 extends from the lower portion of the body. In a preferred embodiment, the handle grip 30 includes a generally J-shaped extruder 60, which is vertically positioned at opposite ends of the handle grip 30 away from the user, such that the extruder 60 is used to receive the user's fingers when the handle grip 30 is gripped. Preferably, when the two portions 11, 12 are assembled accordingly, the extruder 60 is attached to the second portion 12 of the body 10 and fits into a slot on the first portion 11.

[0025] In a preferred embodiment, the spray gun includes one or more receiving portions 40 at the front end of the body 10, the receiving portions 40 being adapted to dock with an aerosol container, wherein the receiving portions 40 have a front opening to allow spraying of contents from the aerosol container. The receiving portions 40 include a circumferential wall defining a space for receiving or docking the aerosol container, and include receiving openings 41, 42 formed at the upper and lower ends of the receiving portions 40 for docking the aerosol container. Preferably, the receiving openings 41, 42 have an inner diameter smaller than the outer diameter of the circumferential wall, such that the receiving portions 40 can be secured to the aerosol container. Also preferably, the upper and lower ends of the receiving portions 40 for receiving the aerosol container have a thickness substantially greater than the thickness of the circumferential wall. Furthermore, the receiving portions 40 include holes 43, 44 provided on the right or left side of the receiving portions 40 to allow adjustment of the spray valve of the aerosol container, more specifically, to adjust the volume of contents sprayed from the aerosol container.

[0026] In a preferred embodiment, the receiving portion 40, having a receiving opening 41 formed at its upper end, is tilted upward or downward at an angle of 0° to 30° relative to the horizontal axis of the top portion 13 of the body 10 of the spray gun, such that the spray angle is parallel to the body 10. Preferably, the angle of the receiving portion 40 is between 5° and 25°, such that the receiving opening 41 is located on an upward-pointing plane, and the aerosol container can be connected to the receiving portion 40 in a direction toward the user, such as... Figures 1 to 4 As shown. Furthermore, the receiving portion 40, having a receiving opening 42 formed at its lower end, can be perpendicular to the body 10 of the assembly. Alternatively, the receiving portion 40, having a receiving opening 42 at its lower end, can be tilted downwards in the opposite vertical direction at a similar angle of 0° to 30°, more preferably 5° to 25°, relative to the horizontal axis of the top portion 13 of the body 10 of the spray gun, such that the receiving opening 42 is located on a downward-pointing plane. This configuration of the receiving portion 40 having receiving openings 41, 42 at its upper and lower ends allows the spray direction to be parallel to the horizontal axis of the top portion 13 of the body 10 of the spray gun, and achieves a deeper angle without compromising the ergonomics of the spray gun during use.

[0027] In a preferred embodiment, the trigger assembly 20 includes a trigger body formed by a first portion 21 and a second portion 22, respectively, for receiving force applied by a user's palm or fingers, to trigger either the first portion 21 or the second portion 22 by moving the trigger assembly 20 from an initial position to an actuated position; to trigger a third portion 23 for actuating the injection valve of the aerosol container when the trigger assembly 20 is in the actuated position; and to trigger a fourth portion 24 disposed near the trigger body for returning the trigger assembly 20 to its initial position. In a particular embodiment, the third portion 23 is configured to rotate about a pivot point 25 located at an end of the third portion 23 opposite to the end of the injection valve of the actuated aerosol container. Figure 1 and Figure 3 As shown, the first portion 21 and the second portion 22 are detachably attached to the trigger assembly 20 via a snap-fit ​​connection between a locking point 26 on one or both of the first portion 21 and the second portion 22 and an outwardly extending protrusion 27. This provides flexibility for the aerosol containers to be used, regardless of whether the aerosol container is to be mated to one or both of the upper and lower ends of the receiver 40. This configuration allows the first portion 21 or the second portion 22 to be snap-fitted onto the locking point 26 of the trigger assembly 20. Furthermore, the third portion 23 has a circular shape and is positioned between the upper and lower ends of the receiver, wherein the third portion 23 is located on the central horizontal axis relative to the pivot point 25. Advantageously, the circular shape of the third portion 23 facilitates more precise actuation of the aerosol container's injection valve when the third portion 23 is moved up or down after triggering one or both of the first portion 21 and the second portion 22. This is because the circular shape of the third portion 23 corresponds to the shape of the injection valve.

[0028] In its original position, the first portion 21 protrudes from the rear portion of the handle grip 30 facing the user, while the second portion 22 protrudes from the front portion of the handle grip 30 away from the user. The third portion 23 is located parallel to the horizontal axis of the top portion 13 of the body 10 of the spray gun, while the fourth portion 24 extends downward toward one of the hollow tubes 111b to which it is attached. In the actuated position, when the first portion 21 is triggered by a force applied by the user's palm, the third portion 23 is then configured to rotate clockwise about the pivot point 25 and move upward to actuate the spray valve of the aerosol container, thereby subsequently spraying the contents from the aerosol container. When the second portion 22 is triggered by a force applied by the user's finger, the third portion 23 is then configured to rotate counterclockwise about the pivot point 25 and move downward to actuate the spray valve of the aerosol container. Simultaneously, the fourth portion 24, acting as an elastic member, is configured to provide considerable resistance when one or both of the first portion 21 and the second portion 22 receive force by pushing or pulling inward. When the force applied to one or both of the first portion 21 and the second portion 22 is released, the fourth portion 24 returns the trigger assembly 20 to its original position. Advantageously, due to the increased surface area acting on the first portion 21, the aerosol container's spray valve can be actuated with minimal force, which subsequently allows for more stable and accurate spraying of the contents. Furthermore, if the aerosol container actuated by triggering the first portion 21 runs out of contents, the user can then trigger the second portion 22 to actuate another aerosol container as a backup, and vice versa.

[0029] In another embodiment, the main body 10 of the spray gun further includes a third portion 14 disposed between the first portion 11 and the second portion 12, wherein the third portion 14 further includes two additional portions, a left portion 14a and a right portion 14b, which can be pressed together to form the third portion 14. In this aspect of the invention, the trigger assembly 20 also includes a lateral extension 28 at the front end portion of the assembly 20, such that two receiving portions 40 are respectively located at both ends of the lateral extension 28, as... Figure 3 and Figure 4As shown. For example, the spray gun can accommodate the use of up to four aerosol containers in a single spraying operation. The aerosol containers in the receiving portion 40, docked at the end of the lateral extension 28, can rotate on their radial axis to further adjust the spray angle along the horizontal plane. This, in turn, not only further increases the surface area for spraying the contents onto the object surface, but also optimizes the mixing efficiency of the contents, particularly pigment mixing, such as, but not limited to, gradient pigment results, when the aerosol containers rotate toward each other such that they intersect or overlap from the spray direction. In this other embodiment, the spray valve of the aerosol container is actuated in a similar manner, whereby the third portion 23 is configured to rotate clockwise around the pivot point 25 when the first portion 21 is triggered by a force applied from the user's palm, and is also configured to rotate counterclockwise around the pivot point 25 when the second portion 22 is triggered by a force applied from the user's finger. In this embodiment, the third portion 23 actuates at least two aerosol containers docked simultaneously on one or both of the upper and lower ends of the receiving portion 40 throughout operation.

[0030] This disclosure includes the contents contained in the appended claims and the foregoing description. Although the invention has been described in detail with a certain degree of specificity in its preferred form, it should be understood that the disclosure of the preferred form is by way of example only, and various changes can be made to the details of the construction and the combination and arrangement of components without departing from the scope of the invention.

Claims

1. A spray gun for use with one or more aerosol containers, comprising: Handle grip (30) for allowing the user to hold the spray gun; as well as The trigger assembly (20), which enables the jet direction to be generally away from the user, is pivotable relative to the handle grip (30) and has a trigger body formed by one or more parts including a first part (21), a second part (22) and a third part (23); in, The first portion (21) and the second portion (22) of the trigger assembly (20) are located at opposite portions of the handle grip (30), and respectively enable the third portion (23) to move to activate the injection valve of the aerosol container when one of the following conditions is met: When the first part (21) is triggered by the user's palm, causing the third part (23) to move upward to activate the corresponding spray valve of the aerosol container, or When the second part (22) is triggered by the user's finger, causing the third part (23) to move in a downward direction to activate the corresponding injection valve of the aerosol container.

2. The spray gun according to claim 1, further comprising one or more receiving portions (40) at the front end portion of the body (10) of the spray gun adapted to dock with the aerosol container, wherein the receiving portion (40) has a front opening to allow spraying of contents from the aerosol container.

3. The spray gun according to claim 2, further comprising a lateral extension (28) at the front end portion of the body (10) of the spray gun, such that two receiving portions (40) are respectively located at both ends of the lateral extension (28).

4. The spray gun according to claim 2 or 3, wherein the receiving part (40) includes a receiving opening (41, 42) formed on one or both of the upper and lower ends of the receiving part (40) for docking with the aerosol container.

5. The spray gun according to claim 4, wherein the receiving portion (40) having the receiving opening (41) formed at its upper end is inclined upward or downward at an angle of 0° to 30° relative to the horizontal axis of the top portion (13) of the body (10) of the spray gun, such that the angle of spray is parallel to the body (10).

6. The spray gun according to claim 4, wherein the receiving portion (40) having a receiving opening (42) formed at its lower end is perpendicular to the body (10) of the spray gun.

7. The spray gun according to claim 2 or 3, wherein the receiving part (40) further includes a hole (43, 44) provided on the right or left side of the receiving part (40) to allow adjustment of the spray valve of the aerosol container.

8. The spray gun according to any one of claims 1-3, wherein the trigger assembly (20) is wherein... The aerosol container is movable from its original position to an actuated position when its first part (21) receives a force applied by the user's palm or when its second part (22) receives a force applied by the user's finger, and at the actuated position, the third part (23) activates the spray valve of the aerosol container; and The fourth part (24) of the trigger assembly (20) located near the trigger body is movable from the actuation position to the original position.

9. The spray gun according to any one of claims 1-3, wherein the first portion (21) and the second portion (22) are detachably attached to the trigger assembly (20).

10. The spray gun according to claim 8, wherein the third portion (23) is configured to rotate about a pivot point (25) and move up or down to actuate the spray valve of the aerosol container when one or both of the first portion (21) and the second portion (22) are triggered.

11. The spray gun of claim 8, wherein the fourth portion (24) is an elastic member configured to provide considerable resistance when one or both of the first portion (21) and the second portion (22) receive a force by pushing or pulling inward, and to return the trigger assembly (20) to its original position after the force applied to one or both of the first portion (21) and the second portion (22) is released.

12. The spray gun according to any one of claims 1-3, wherein the handle grip (30) includes a squeeze member (60) disposed perpendicularly to the trigger assembly (20) for receiving a user's finger when the handle grip (30) is held.

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