JP2007061810A - Spray device and kit therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spray device suitable for spray a coating of a liquid composition such as a coating material irrespective of viscosity. <P>SOLUTION: This spray device 2 comprises a body 4 provided with a gas vessel 4a, a gas jetting nozzle 22 for jetting gas from the gas vessel, and a liquid composition holding part 40, for holding a liquid composition directly or indirectly, provided with a liquid composition discharge port 44 for discharging the held liquid composition. The liquid composition holding part 40 is oriented downward to such an extent that the held liquid composition can flow down. The gas jetting nozzle 22 is oriented downward with respect to the horizontal state, and the front end is located near the liquid composition discharge port 44. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid composition spray apparatus and kit.

In recent years, in consideration of the influence on the environment, for example, liquid compositions are often used for vehicle painting and the like. Similarly, liquid compositions are being used to repair painted surfaces with liquid compositions. Since the liquid composition uses water as a dispersion medium, it can be easily applied industrially to a large spray apparatus. On the other hand, manual work using a brush or a pen-type cartridge is mainly used for fine parts and repaired parts. Liquid compositions usually have higher viscosities than solvent-based paints, so when using brushes etc. by hand, skill is required to obtain a good finished surface. It was. A simple spray gun is also known (Patent Document 1). In this spray gun, the paint in the paint cartridge is usually fed to the nozzle by a high-pressure compressed gas and ejected from the nozzle, and atomized from the separately sent compressed gas.
JP-A-10-305243

  According to such a spray gun, it is convenient to apply a solvent-based paint having a low viscosity. However, when the viscosity is high like a liquid composition, there is a case where liquid feeding may be hindered. In addition, the liquid composition may have a large viscosity and specific gravity, and since the atomizing gas is sprayed onto the liquid composition discharged upward, a desired amount is spray-coated on the target in a desired area. It was difficult to do. Also, with this spray gun, it is necessary to clean the nozzle that enters the liquid composition cartridge every time the cartridge of the liquid composition is changed, such as changing the color of the paint, or to prepare a nozzle for each cartridge.

  Therefore, an object of the present invention is to provide a spray device and a kit suitable for spray application of a liquid composition such as a paint regardless of viscosity. Another object of the present invention is to provide a spray device and a kit in which the liquid composition can be easily exchanged.

The present invention employs the following means in order to solve the above-described problems.
(1) A spray device for a liquid composition,
A body with a gas container;
A gas ejection nozzle for ejecting gas from the gas container;
While holding the liquid composition directly or indirectly, a liquid composition holding unit comprising a liquid composition discharge port for discharging the held liquid composition;
With
The liquid composition holding part is directed downward to the extent that the held liquid composition can flow down, the gas ejection nozzle is directed downward from the horizontal, and the tip thereof is the liquid of the liquid composition holding part A spray device located near the composition outlet.
(2) The liquid composition holding unit according to (1), wherein the liquid composition holding unit is a cartridge holder that indirectly holds the liquid composition by holding the vicinity of an opening of a cartridge filled with the liquid composition. Spray device.
(3) The cartridge holder has an opening capable of holding the vicinity of the opening of the cartridge and is capable of receiving the liquid composition flowing down from the cartridge, and the liquid composition discharge port is provided near the bottom of the cartridge holder. The spray apparatus as described in (2) provided. (4) The spray device according to (2) or (3), wherein the cartridge holder includes a sleeve that is housed in the cartridge holder and communicates with an opening of the cartridge and the liquid composition discharge port.
(5) The spray device according to (4), wherein the sleeve has a tapered portion whose opening diameter gradually decreases toward the liquid composition discharge port side.
(6) The spray device according to (5), wherein an opening in the tapered portion of the sleeve is larger than an opening diameter of the liquid composition discharge port.
(7) The cartridge holder includes an insert accommodated therein,
The insert is
A front end portion that can be fitted in the vicinity of the liquid composition discharge port to close the liquid composition discharge port;
A cavity communicating with the opening of the cartridge and capable of receiving the liquid composition, the cavity comprising a liquid composition outlet opening communicating with a space formed between the cavity and the cartridge holder;
The spray device according to (2) or (3).
(8) The insert according to (7), wherein the insert has an edge that protrudes outward along the periphery of the insert so as to be latched to a predetermined inner wall of the cartridge holder and is elastically deformable. Spray equipment.
(9) The spray device according to (7) or (8), wherein the opening degree of the liquid composition discharge port is adjusted by the insertion depth of the insert into the cartridge holder.
(10) The insert can be fitted in the vicinity of the opening of the cartridge, and the insertion depth into the cartridge can be adjusted by the insertion depth of the cartridge into the cartridge holder. Spray equipment.
(11) The cartridge holder holds a spherical body rotatably at a predetermined portion near the liquid composition discharge port in a state where movement from the predetermined portion to the liquid composition discharge port side is suppressed. The spray device according to any one of (2) to (6).
(12) The cartridge holder is
1 or 2 or more recessed parts which form the gap | interval which can flow the said liquid composition between the said spherical body surface and the said inner wall in the said spherical body surface or the inner wall of the said cartridge holder holding the said spherical body The spray device according to (11), comprising:
(13) Any of (1) to (12), wherein the cartridge holder includes an air supply unit that supplies air so that the liquid composition can flow down from the liquid composition discharge port when spraying the liquid composition. A spray device according to the above.
(14) The opening of the cartridge holder and the opening of the cartridge each have a female screw portion and a male screw portion that are screwed together,
The air supply part is one or two or more slits in which at least a part of the female screw part or the male screw part is cut out and air can flow through the screwed part even during screwing. (13) The spray apparatus.
(15) The spray device according to (1), wherein the liquid composition holding unit is a container that can store the liquid composition and includes an inlet for the liquid composition.
(16) The liquid composition holding portion is fitted into the liquid composition discharge port with an insert having a tip portion that can be fitted in the vicinity of the liquid composition discharge port to close the liquid composition discharge port. The spray device according to (15), which is provided with an adjustable state.
(17) The fitting state of the tip portion of the insert to the liquid composition discharge port is adjusted by the insertion depth of the tip portion into the liquid composition discharge port by a screw mechanism including the insert. (15) or the spray apparatus as described in (16).
(18) A kit for a spray device,
The spray device is
A main body including a gas container, a gas ejection nozzle for ejecting gas from the gas container, and a liquid that holds the vicinity of the opening of the cartridge filled with the liquid composition and discharges the liquid composition in the cartridge A cartridge holder having a composition discharge port, and the cartridge holder is directed downward such that the liquid composition in the cartridge can flow down, and the gas ejection nozzle is directed downward from the horizontal. And its tip is a spray device located in the vicinity of the liquid composition outlet of the cartridge holder,
The kit is
The body;
A cartridge unit that can be directly or indirectly attached to or detached from the main body, and includes at least the cartridge holder;
With
The gas ejection nozzle may be detachably attached to either the main body or the cartridge unit, or may be integrated with either the main body or the cartridge unit.
(19) The kit according to (18), comprising a sleeve that can be accommodated in the cartridge holder and communicates with the opening of the cartridge and the liquid composition outlet.
(20) A tip portion that can be accommodated in the cartridge holder and can be fitted in the vicinity of the liquid composition discharge port to close the liquid composition discharge port; (18) an insert having a cavity capable of receiving a liquid composition and having a liquid composition outlet port communicating with a space formed between the cavity and the cartridge holder. kit.
(21) A cap member having a projection part capable of opening the air supply port in the cartridge and including a shielding part for blocking the air supply port opened in the cartridge by the projection part. ) To (20).
(22) A cartridge unit for a spray device,
The spray device is
A main body including a gas container, a gas ejection nozzle for ejecting gas from the gas container, and a liquid that holds the vicinity of the opening of the cartridge filled with the liquid composition and discharges the liquid composition in the cartridge A cartridge holder having a composition discharge port, and the cartridge holder is directed downward such that the liquid composition in the cartridge can flow down, and the gas ejection nozzle is directed downward from the horizontal. And its tip is a spray device located in the vicinity of the liquid composition outlet of the cartridge holder,
A cartridge unit comprising at least the cartridge holder.
(23) The unit according to (22), wherein the cartridge unit includes the gas ejection nozzle.
(24) The liquid composition holding unit holds a spherical body at a predetermined position near the liquid composition discharge port so as to be rotatable in a state where movement from the predetermined portion toward the liquid composition discharge port is suppressed. The spray device according to (1).
(25) The liquid composition holding part is
A first spherical body that is rotatably held in a state where movement from the first predetermined portion toward the liquid composition discharge port side is suppressed at a first predetermined portion in the vicinity of the liquid composition discharge port; ,
In a second predetermined portion that is further away from the liquid composition discharge port than the first predetermined portion, it is rotatable in a state in which movement to the liquid composition discharge port side is suppressed from the second predetermined portion. A second spherical body held by
The spray device according to (24), comprising:
(26) The liquid composition can flow between the surface of the first spherical body and the inner wall on the surface of the first spherical body or the inner wall of the liquid composition holding member that holds the spherical body. The spray device according to (25), wherein the spray device has one or more concave portions that form a gap.
(27) The spray device according to (25) or (26), wherein the first spherical body or the inner wall has one or more convex portions that can form the gap.
(28) The liquid composition holding portion has a spherical shape provided with an opening that allows the liquid composition to pass through when the gas is ejected by the second spherical body and suppresses the liquid composition from flowing down when the gas is not ejected. The spray device according to any one of (25) to (27), comprising a body holding member.
(29) The opening end surface of the spherical body holding member that abuts on the second spherical body is inclined rather than perpendicular to a central axis that is directed to the liquid composition discharge port of the liquid composition holding portion. (28) The spray apparatus.
(30) The liquid composition holder is a cartridge holder that indirectly holds the liquid composition by holding the vicinity of the opening of the cartridge filled with the liquid composition,
The spray device according to (28) or (29), wherein the spherical body holding member constitutes the liquid composition outlet side portion of a sleeve communicating with the opening of the cartridge and the liquid composition outlet.
(31) The opening of the cartridge holder and the opening of the cartridge each have a female screw portion and a male screw portion that are screwed together,
(1) At least a part of the female screw part or the male screw part has a notch shape, and includes an air supply part that is one or more slits through which air can flow through the screwed part even during screwing. 29) The spray device.

  The liquid composition spray device of the present invention includes a main body including a gas container, a gas ejection nozzle that ejects gas from the gas container, and directly or indirectly holds the liquid composition. A liquid composition holding part having a liquid composition discharge port for discharging the liquid composition, and the liquid composition holding part is directed downward to the extent that the held liquid composition can flow down, The gas ejection nozzle is directed downward from the horizontal, and its tip is located in the vicinity of the liquid composition discharge port of the liquid composition holding part.

Further, the spray kit of the present invention includes a main body including a gas container, a gas ejection nozzle for ejecting gas from the gas container, a vicinity of the opening of the cartridge filled with the liquid composition, and the inside of the cartridge. A cartridge holder having a liquid composition discharge port for discharging the liquid composition, and the cartridge holder is directed downward to the extent that the liquid composition in the cartridge can flow down, and The gas ejection nozzle is directed to a position lower than the horizontal and the tip thereof is a kit for a spray device located near the liquid composition discharge port of the cartridge holder,
The body;
A cartridge unit that can be directly or indirectly attached to or detached from the main body, and includes at least the cartridge holder;
It is characterized by having.

  According to such a liquid composition spraying apparatus and kit, the liquid composition holding part or the cartridge holder is directed downward to such an extent that the liquid composition can flow down. The liquid composition is supplied to the vicinity of the gas ejection nozzle by the action. In addition, with respect to the liquid composition supplied in the vicinity of the gas ejection nozzle in this manner, the liquid composition is stably stabilized by injecting the gas from the gas ejection nozzle inclined toward the liquid composition discharge port side from the horizontal. Dropped into a mist and sprayed.

  Thus, according to the spray device and kit of the present invention, a spray device suitable for the liquid composition to be sprayed can be provided by utilizing the gravity flow of the liquid composition or the cartridge structure. Moreover, according to the spray apparatus and kit of this invention, a liquid composition can be easily sprayed by hold | maintaining the cartridge of a liquid composition to a liquid composition holding | maintenance part.

  Hereinafter, embodiments of the spray device and kit of the present invention will be specifically described. FIG. 1 shows a spray kit of the present embodiment, FIG. 2 shows a spray device using such a kit, and FIG. 3 shows a detailed sectional view of a cartridge holder portion.

  The spray device 2 and the kit 102 of the present embodiment are used in a water-based paint cartridge 100 as a liquid composition as illustrated in FIGS. 1 and 2. The cartridge 100 includes a cartridge main body C and a screw-type cap, and a brush can be provided integrally or separately with the cap. The male screw portion in the opening portion of the cartridge main body C is screwed into the female screw portion in the opening 42 of the cartridge holder 40.

  As shown in FIG. 1, the spray device 2 of this embodiment includes a main body 4 provided with a gas container 4a, a nozzle portion 20 provided with a gas ejection nozzle, and a cartridge holder 40 that holds a cartridge main body C filled with a water-based paint. And. The spray kit 102 according to the present embodiment is a kit constituting the spray device 2 and includes a main body 4 and a cartridge unit 10 in which the nozzle unit 20 and the cartridge holder 40 are integrated.

  The gas container 4a may be any gas supply source, regardless of the type of gas or the form of gas filling. Therefore, it may be an air cylinder, or may be filled with liquefied gas or compressed gas. Such a gas container 4a may be configured to be replaceable.

  The form of the operation unit 6 is not particularly limited, and may be a so-called spout as illustrated in FIG. 1 or a button. Furthermore, a grip type may be used. For example, when the operation unit 6 is pressed, the gas inside the gas container 4a is ejected vigorously from the gas ejection port 8 in conjunction with this.

  The cartridge unit 10 is detachably provided on the upper part of the gas container 4a. The cartridge unit 10 includes a nozzle unit 20 and a cartridge holder 40.

  The nozzle unit 20 includes a gas ejection nozzle 22. The gas ejection nozzle 22 is formed in a tapered cylindrical body, and is mounted so as to communicate with the gas ejection port 8 of the main body 4 at the same time when the cartridge unit 10 is mounted on the main body 4. In the present embodiment, the gas ejection nozzle 22 is mounted so as to extrapolate the gas ejection port 8.

  The nozzle unit 20 is formed so that the entire nozzle unit 20 is directed downward from the horizontal in a state where the cartridge unit 10 is mounted on the main body 4, and the gas ejection nozzle 22 is similarly formed along the major axis of the nozzle unit 20. Oriented downward.

  The gas ejection nozzle 22 is not directed directly below, but has a relationship with the viscosity of the water-based paint described later, but is inclined so as to be gently inclined downward toward the water-based paint discharge port side from which the water-based paint is discharged. It is configured to The tip of the gas ejection nozzle 22 is positioned so as to point slightly ahead of the discharge port 44 rather than toward the water-based paint discharge port 44 of the cartridge holder 40. Further, it is preferable that the tip of the gas ejection nozzle 22 is disposed so as not to contact the cartridge holder 40. This is because the front end side of the cartridge holder 40 may be contaminated by atomization of the water-based paint.

  The nozzle unit 20 includes a fixing member for detachably fixing the unit 10 to the main body 4. For example, the leg part 24 which supports the nozzle part 20 from the bottom and fixes it to the main body 4 can be provided. The leg portion 24 is formed integrally with the lower portion so as to support the nozzle portion 20, and the lower end thereof can be fixed by engagement or fitting with an edge provided on the upper portion of the gas container 4 a. ing. The leg portion 24 is a fixing member to the main body 4 of the unit 10. At the same time, the leg portion 24 maintains a constant gas injection direction in the gas injection nozzle 22 and applies a load when the cartridge main body C is attached to and detached from the cartridge holder 40. It is convenient to support.

  In addition, as another fixing member, a bracket 26 that is engaged with an edge provided in the vicinity of the operation unit 6 of the gas container 4 a can be provided on the upper portion of the nozzle unit 20. The bracket 26 is integrated with a base portion 28 that integrates a cartridge holder 40 provided on the upper portion of the nozzle portion 20. The bracket 26 extends from the base portion 28 toward the main body 4, and has an engaging portion 26 a for an edge provided near the operation portion 6 of the main body 4 at the tip thereof. By maintaining the state of engagement of the bracket 26 with the main body 4, it is possible to stably ensure the attachment form (posture) of the entire unit 10 with respect to the main body 4. Further, the unit 10 can be held at a certain position against the gas injection pressure. Furthermore, the load applied when the cartridge main body C is attached to and detached from the cartridge holder 40 can be dispersedly supported.

  Note that various fixing means such as fitting, engagement, screwing, and fastening can be used as a fixing method of the fixing means of the fixing member to the main body 4 in the unit 10, and the form of the fixing means described above. Various forms are possible without being limited to brackets or legs.

  The cartridge holder 40 is integrated with a base portion 28 provided on the upper portion of the nozzle portion 20. The base portion 28 protrudes upward from the upper portion of the nozzle portion 20 and supports the side surface of the cartridge holder 40. The cartridge holder 40 is configured to hold the vicinity of the opening of the cartridge main body C, and when the unit 10 is mounted on the main body 4, the cartridge holder 40 is directed downward to the extent that the water-based paint in the cartridge main body C can flow down. It is configured.

  The cartridge holder 40 is preferably a container-like body corresponding to the shape of the opening of the cartridge main body C to be mounted. If it is a container-like body, the cartridge body C can be stably held. The cartridge holder 40 has an internal thread portion on the inner peripheral surface near the opening thereof, and can be screwed with an external thread portion near the opening portion of the cartridge body C. The cartridge holder 40 may hold the cartridge main body C by any fixing means. However, the cartridge main body C can be held by the cartridge main body C by various fixing means such as fitting, engagement, and screwing. It is preferable to keep it in a sealed state.

  The cartridge holder 40 preferably has a tapered shape whose diameter gradually decreases toward the water-based paint discharge port 44 side. This is because the water-based paint discharged from the water-based paint discharge port 44 is preferably highly directional.

  As shown in detail in FIG. 3, the cartridge holder 40 holds a spherical body 46 at a predetermined position near the water-based paint discharge port 44. The spherical body 46 is held so as not to be detached by an appropriate locking structure or the like so as not to move to the tip side from the holding portion. By holding the spherical body 46 at a predetermined portion, it is possible to prevent the aqueous paint flowing down from the cartridge main body C from being discharged from the aqueous paint discharge port 44 during non-spraying. In addition, one or more concave portions 48 a can be provided on the inner wall of the cartridge holder 40 that holds the spherical body 46. By providing such a concave portion 48 a, a gap can be formed between the inner wall of the holding portion and the spherical body 46, and the water-based paint can be appropriately discharged from the water-based paint discharge port 44 during spraying. The concave portion 48a may be specifically formed in a groove shape having such directivity so as to be directed to the water-based paint discharge port 44. The concave portion 48 a may be formed on the surface of the spherical body 46.

  The cartridge holder 40 includes a sleeve 50 therein. The sleeve 50 is fixed in the cartridge holder 40, and is formed in a cylindrical body that communicates with the opening of the cartridge main body C and the aqueous paint discharge port 44. Therefore, the inside of the sleeve 50 is a portion that receives the water-based paint flowing down from the cartridge main body C. In the present embodiment, the sleeve 50 is fixed so as to be in close contact with the inner plug 101 of the cartridge main body C. By providing the sleeve 50 in the cartridge holder 40, the volume of the aqueous paint in the cartridge holder 40 is reduced, and the aqueous paint overflows from the cartridge holder 40 when the cartridge body C is removed from the cartridge holder 40. This can be suppressed. Further, since the sleeve 50 communicates with the opening of the cartridge main body C, when the cartridge holder 40 or the cartridge main body C is supported so that the aqueous paint stored in the cartridge holder 40 flows down to the cartridge main body C side, the The paint easily returns to the inside of the cartridge main body C, and this can also suppress the leakage of the aqueous paint when the cartridge main body C is removed.

  An air supply unit capable of supplying air can be provided in the cartridge holder 40 to which the cartridge main body C is mounted. Since the inside of the cartridge holder 40 is a substantially sealed space, external air is supplied to stably discharge the water-based paint from the cartridge holder 40 while the gas is ejected from the gas ejection nozzle 22. It is necessary to prevent the internal pressure from becoming too low. The air supply unit may simply be an opening that allows the inside and outside of the cartridge holder 40 to communicate with each other, but in order to reliably supply external air, an air supply pipe 52 that communicates between the inside and outside of the cartridge holder 40 is attached. be able to.

  The air supply pipe 52 includes an air intake port 53 outside the cartridge holder 40. The intake port 53 is bent so that the intake port 53 opens upward when the unit 10 is attached to the main body 4 so that the water-based paint stored in the cartridge holder 40 does not flow out. The opening of the air supply pipe 52 in the cartridge holder 40 is preferably in a space communicating with the water-based paint discharge port 44. Therefore, in this embodiment, the air supply pipe 52 is opened in the sleeve 50. In the present embodiment, the air supply pipes 52 are fitted and held by through holes formed in the cartridge holder 40 and the sleeve 50, respectively. For this reason, the air supply pipe 52 is stably held with respect to the cartridge holder 40.

  Next, the operation of spraying the water-based paint using such a spray device 2 will be described. First, as shown in FIG. 1, the cartridge unit 10 is attached to the main body 4. That is, the leg portion 24 of the cartridge unit 10 is engaged with the upper end edge of the main body 4, and the engaging portion 26 a of the bracket 26 is locked to the end edge near the operation portion of the main body 4. Further, the nozzle portion 20 is fitted to the gas jet port 8 so as to be fitted. As a result, the cartridge unit 10 is fixed to the main body 4, and the nozzle unit 20 and the cartridge holder 40 have predetermined postures.

  Next, the cap of the water-based paint cartridge 100 is removed and the cartridge main body C is attached to the cartridge holder 40. That is, the male screw portion of the opening of the cartridge main body C and the female screw portion of the opening 42 of the cartridge holder 40 are screwed together and attached. As a result, a state in which the opening 42 side of the cartridge holder 40 is substantially sealed by the cartridge main body C is formed. The vicinity of the opening of the cartridge main body C is inserted into the cartridge holder 40, and the opening of the cartridge main body C is fitted with the end of the sleeve 50 inside the cartridge holder 40 so that the sleeve 50 Secure in the cartridge holder 40.

  In such a set state, the water-based paint in the cartridge body C flows down into the cartridge holder 40 due to gravity, but since the spherical body 46 is held in the vicinity of the discharge port 44, the water-based paint discharge port Emission from 44 can be prevented. In addition, since the recessed part 48a formed in the inner wall of the holding | maintenance site | part of the spherical body 46 is formed in the form which can prevent discharge | emission of an aqueous coating material at the time of such non-spraying, an aqueous coating material flows down easily. There is no. The cartridge unit 10 may be mounted on the main body 4 after the cartridge main body C is held in the cartridge holder 40 in advance.

  Next, the spray device 2 is gripped and positioned with respect to the region to be coated, and the operation unit 6 is pressed so that the gas inside the gas container 4 a is ejected from the gas ejection nozzle 22 through the gas ejection port 8. When gas is ejected from the gas ejection nozzle 22, air near the water-based paint discharge port 44 of the cartridge holder 40 is also sucked by the gas pressure. Accordingly, the water-based paint in the cartridge main body C is discharged from the discharge port 44. Thus, in the spray device 2, the water-based paint is discharged from the discharge port 44 by suction by gas injection from the gas jet nozzle 22 and is supplied to the front end side of the gas jet nozzle 22 while naturally flowing the water-based paint into gravity. Therefore, the inconvenience due to the high viscosity of the water-based paint can be avoided as in the prior art. That is, spraying became easy regardless of viscosity.

  The water-based paint discharged obliquely downward from the discharge port 44 is immediately formed into droplets and scattered by the gas from the gas ejection nozzle 22 after being discharged. Since the gas from the gas ejection nozzle 22 is ejected in a diagonally downward direction, it can be formed into droplets without excessively scattering the water-based paint that is directed in the diagonally downward direction. As a result, it is possible to accurately perform spray coating on a small area even during repair. Thereby, even if it is a small application area, a favorable coating surface can be obtained without producing the brush eye etc. which arise when it paints with a brush. In particular, according to such a spray form, droplets can be concentrated in a narrow region without being dispersed. For this reason, even if it is a spray, fine patterns, such as a thin line, can be drawn easily.

  In addition, air is supplied into the sleeve 50 of the cartridge holder 40 through the air supply pipe 52 in accordance with the amount of the aqueous paint discharged during spraying of the aqueous paint. For this reason, the water-based paint is stably discharged from the discharge port 44 without the pressure in the cartridge holder 40 being excessively reduced. As a result, spraying can be continued stably.

  Further, the external portion of the cartridge holder 40 of the air supply pipe 52 is bent, and the air intake 53 is opened upward when the unit 10 is mounted on the main body 4. For this reason, even if the water-based paint is accumulated in the cartridge holder 40 during and after the spray coating, the water-based paint does not flow out from the air intake port 53. Further, in this embodiment, since the air supply pipe 52 is supported by the cartridge holder 40 and the sleeve 50 provided therein, the air supply pipe 52 is stably held without being detached during spraying. The In the present embodiment, since the air supply pipe 52 is provided in the cartridge holder 40, it is possible to omit forming a special air supply structure in the cartridge body C.

  When the gas injection from the gas ejection nozzle 22 is started and the inside of the cartridge holder 40 is sucked, the spherical body 46 is held at the holding portion, but due to the presence of the concave portion 48a. The discharge of the water-based paint from the cartridge holder 40 and the cartridge main body C is not hindered.

  When the spraying is finished, the pressing state of the operation unit 6 is released. By doing so, the suction state in the cartridge holder 40 is completed, and the spherical body 46 is held at a predetermined position, whereby the discharge port 44 side is substantially blocked and the discharge of the water-based paint is prevented.

  Finally, the cartridge holder 40 and the cartridge body C are unscrewed, and the cartridge body C is removed. Since the water-based paint is prevented from being discharged from the cartridge holder 40 by the spherical body 46, such a removal operation can be easily performed. In order to clean the cartridge holder 40, etc., the fixed state of the bracket 26 or the base 28 and the main body 4 may be released.

  From the above, according to the spray device and kit of the present invention, it is possible to spray easily regardless of the viscosity of the liquid composition such as paint to be sprayed. In particular, even a liquid composition having a high viscosity can be easily sprayed. Further, by replacing the cartridge main body held in the cartridge holder, the liquid composition such as a paint can be easily replaced.

  Moreover, according to the spray apparatus and kit of this invention, while being able to apply | coat a liquid composition to a narrow area | region irrespective of application | coating by spray, fine patterns, such as a thin line, can be drawn easily. In addition, a good coated surface can be obtained without brushing. For this reason, it is a spray device and a kit suitable for fine coating work.

  In the spray device and spray kit of the present invention, the cartridge 100 can also be combined into a kit. Furthermore, a liquid composition such as a paint that can be filled in the cartridge body can be made into a kit. Furthermore, a main body 4 filled with gas can be added to form a kit.

  In the present embodiment, the cartridge unit 10 is provided so as to be detachable from the main body 4. However, the cartridge unit 10 may be integrated with the main body 4 and configured as the spray device 2 in advance. Further, in the cartridge unit 10, the cartridge holder 40 is provided integrally with the nozzle unit 20, but the cartridge holder 40 may be provided detachably with respect to the nozzle unit 20. Further, by doing so, only the cartridge holder 40 can be removed and cleaned. Further, since only the cartridge holder 40 can be replaced, the color of the paint can be easily changed. The means for detachably fixing the cartridge holder 40 to the nozzle portion 20 is not particularly limited, and conventionally known fixing means such as fitting, locking, screwing, and fastening can be used.

  Furthermore, in the present embodiment, the cartridge unit 10 includes the cartridge holder 40 and the nozzle unit 20, but may include only the cartridge holder 40. That is, the nozzle unit 20 may be provided integrally with the main body 4 in advance, and the cartridge holder 40 may be detachably provided on a part of the main body side. By doing so, the cartridge holder 40 can be easily cleaned as described above, and the paint can be easily replaced. Note that only the nozzle unit 20 may be kitted as individual parts.

  In the present embodiment, the water-based paint cartridge 100 filled with the water-based paint in advance is used. However, a cartridge that is used by appropriately filling the liquid composition in the cartridge body C of the empty container may be used.

  Moreover, in this embodiment, although water-based paint was used as a liquid composition, it is not limited to this. In addition to the solution, the liquid composition includes a suspension and a liquid that is forcibly dispersed at the time of use. Such liquid compositions include liquid compositions for industrial uses (particularly for vehicle repair) such as solvent-based paints (including clear paints), lubricants, and adhesives (for example, two-part adhesives), and household liquid compositions. Products (for DIY and gardening), ink, various paints, liquid compositions for hobby or art, food-based liquid compositions such as fats and oils, seasonings, cosmetics such as lotions, emulsions, liquid foundations, colons Liquid compositions for cosmetics such as nail polishes, liquid compositions for hair cosmetics such as hair lotions and hair coloring agents, liquid compositions for various washings, and liquid pharmaceutical compositions such as liquid pharmaceuticals.

  Further, in the present embodiment, the spherical body 46 prevents the aqueous paint, which is a liquid composition, from flowing down from the discharge port 44 during non-spraying. However, the suppression of leakage of the liquid composition during non-spraying is limited to this. Not what you want. For example, a sleeve 51 as shown in FIG. 4 can be used. The sleeve 51 is different from the sleeve 50 in that a taper portion 51 a having an opening diameter gradually decreases on the discharge port 44 side of the cartridge holder 40. Such a tapered portion 51a itself is effective for preventing leakage of the liquid composition, and is also effective in combination with other leakage preventing means such as the spherical body 46. The relationship between the opening 51b of the tapered portion 51a and the opening diameter of the discharge port 44 is not particularly limited. However, if the opening 51b is formed larger than the opening diameter of the discharge port 44, the discharge of the liquid composition during spraying is prevented. There is no. Further, when the tapered portion 51a can be elastically deformed, the tapered portion 51a is deformed by the tapered inner wall of the cartridge holder 40 by inserting the sleeve 51 deeper into the cartridge holder 40, so that the tapered portion 51a can be deformed. It is also possible to shield the opening 51b by crushing the opening 51b so that the opening 51b has a smaller diameter. Note that the insertion depth of the sleeve 51 can be adjusted, for example, in a screwed state between the cartridge body C and the cartridge holder 40 in this embodiment, or when the cartridge body C is held in the cartridge holder 40 by simple fitting. It can be adjusted by the fitting depth.

  Moreover, the insert 54 shown in FIG. 5 can also be used. The insert 54 is inserted into the cartridge holder 40, and is a cavity that can be received in the vicinity of the discharge port 44 and communicated with the front end 54 a that can be shielded and the opening of the cartridge body C to receive the liquid composition. 54b. The cavity 54 b has a liquid composition outlet 55 that communicates with the space between the cartridge holder 40 and the insert 54. According to such a configuration, when the spray is not performed, leakage of the liquid composition from the discharge port 44 is prevented by inserting the insert 54 into the cartridge holder 40 to such a depth that the front end portion 54a blocks the discharge port 44. The Further, at the time of spraying, the insert 54 is positioned in the cartridge holder 40 to such a depth that the front end 54 a does not block the discharge port 44, so that the liquid composition passes from the cartridge body C through the cavity 54 b and the outlet 55. It is discharged from the discharge port 44. The insertion depth of the insert 54 with respect to the cartridge holder 40 can be adjusted by appropriately adjusting the holding state of the cartridge holder 40 and the cartridge main body C as described above. By providing such a closed structure of the discharge port 44, leakage at the time of non-spraying can be effectively prevented even for a liquid composition having low viscosity. The outlet 55 is provided with a high opening height (particularly the opening height in the cavity 54b) (on the side closer to the cartridge body C), or the opening of the outlet 55 flows down into the cavity 54b. By providing at a position where the liquid level of the liquid composition does not reach or is difficult to reach, the liquid composition can be prevented from being led out from the outlet 55 and leakage from the outlet 44 can be suppressed. In addition, a concave portion toward the discharge port 44 may be formed on the surface of the front end portion 54a or the inner wall of the cartridge holder 40 around the front end portion 54a. By doing so, discharge of the liquid composition during spraying can be facilitated.

  In the present embodiment, the air supply unit is the air supply pipe 52 introduced into the cartridge holder 40, but is not limited thereto. For example, as shown in FIG. 6, a threaded portion between the cartridge holder 40 and the cartridge body C can be used. That is, at least a part of the thread of either the female screw portion in the vicinity of the opening 42 of the cartridge holder 40 or the male screw portion of the opening portion of the cartridge main body C is notched so that air can flow even during screwing. A slit 58 can be provided on the surface. One or more slits 58 can be provided. The supply state of the air can be adjusted by the screwing state by the slit forming region. For example, when the slit 58 is provided over the formation range of the female screw portion or the male screw portion, air can flow even if the female screw portion and the male screw portion are completely screwed together. When the slit 58 is provided in the range from the opening of the female screw portion to the middle or from the opening of the male screw portion to the middle, the air can be circulated when screwed so as not to exceed the slit 58. When it is screwed over the slit 58, the air is no longer able to flow.

  Such an air supply unit is preferable when the sleeves 50 and 51 and the insert 54 are provided. In particular, it is preferable when the opening / closing degree of the discharge port 44 is adjusted by the insertion depth of the cartridge body C into the cartridge holder 40. For example, as shown in FIG. 6, the insert 54 may include an edge 56 that projects outward along its outer periphery. The end edge portion 56 can function as a sealing material that blocks air from the slit 58. The end edge portion 56 is configured to be able to be locked to a predetermined portion of the inner wall inside the cartridge holder 40. As shown in FIG. 6A, at the time of spraying, when the end edge portion 56 is simply locked to a predetermined portion of the inner wall, the discharge port 44 is not closed by the tip end portion 54a. Air is also supplied from the slit 58. As a result, the liquid composition is introduced into the cavity 54 b and can be discharged from the discharge port 44. On the other hand, as shown in FIG. 6B, when non-spraying is performed, the end edge portion 56 is pushed in by the cartridge main body C, and as a result of elastic deformation, is brought into close contact with the locking portion of the inner wall and air from the slit 58 The discharge port 44 is closed by the tip end portion 54a. As a result, the liquid composition cannot be discharged from the discharge port 44. By providing such an air blocking structure, it is possible to effectively prevent leakage during non-spraying even for liquid compositions having low viscosity. Note that the elastic deformability of the end edge portion 56 can be obtained by, for example, a constituent material of the end edge portion 56, or can be obtained by providing a fragile portion at least in part such as a base portion of the end edge portion 56. . In addition, by providing the edge part 56, it can prevent inserting the insert 54 too deeply. Further, by providing the end edge portion 56, it becomes easy to pull out the insert 54 from the cartridge holder 40 in order to release the closed state of the discharge port 44. In particular, in the case where the liquid composition is easily dried, the closed state of the discharge port 44 can be easily released by providing the edge portion 56. Therefore, by providing the end edge portion 56, opening and closing by the tip end portion 54a of the discharge port 44 can be easily and reliably performed.

  Furthermore, the air supply unit may be configured as shown in FIGS. The air supply unit can also be provided in the cartridge main body C. For example, as shown in FIG. 7, the opening 62 may be provided at the bottom of the cartridge main body C, or the bottom of the cartridge main body C via the cartridge holder 40 (the upper portion is held by the cartridge holder 40. ) May be an air supply pipe 64 having an air supply port 65 that reaches up to. Further, in the case of opening in the bottom of the cartridge main body C, the opening 62 is formed in the bottom for the first time during spraying, and a cap 70 having a protrusion 72 capable of forming such an opening 62 may be provided. . The cap 70 can have a configuration that allows the bottom of the cartridge body C to be capped so as to seal the opening 62 at the end of spraying. Further, it is preferable to provide a sealing material such as a cap capable of sealing the air intake port 66 of the air supply pipe 64.

  In this embodiment, the cartridge main body C is mounted on the cartridge holder 40 that is a liquid composition holding unit, but the cartridge holder 40 itself can be used as a container for the liquid composition. In this case, the liquid composition holding unit may be configured in a container shape that can store the liquid composition and includes an inlet for the liquid composition. An example of such a liquid composition holding part is shown in FIG. In the example shown in FIG. 9, a liquid composition holding part 140, an insert 148, and a lid part 152 are provided. The liquid composition holding unit 140 is formed in a cup shape having an opening 142 and has a liquid composition discharge port 144 at the bottom thereof. The discharge port 144 is configured to be openable and closable by an insert 148 having a tip portion 150 fitted in the vicinity of the discharge port 144. As shown in FIGS. 9A and 9B, the opening / closing of the discharge port 144, that is, the fitting state between the discharge port 144 and the tip portion 150, indicates the insertion depth of the insert 148 into the liquid composition holding unit 140. In the example shown in FIG. 9, adjustment is possible by the screwed state of the male screw portion provided in the insert 148 and the female screw portion provided in the lid portion 152. The lid 152 has a liquid composition inlet 154 and a cap 156 that can be opened and closed. Note that the air supply structure and the liquid composition leakage prevention structure described above can also be applied to the liquid composition holding unit 140. For example, the air supply structure having the female screw portion and the male screw portion shown in FIG. 6 can be applied to the liquid composition holding portion 140 and the lid portion 152, and the air supply pipe shown in FIG. 3 can also be adopted. Moreover, the spherical body shown in FIG. 3 and the sleeve and insert shown in FIGS. Further, an air supply structure by screwing may be applied to the liquid composition inlet 154 and the cap 156.

  Further, in the present embodiment shown in FIGS. 1 to 3, the water-based paint as the liquid composition is prevented from flowing down from the discharge port 44 at the time of non-spraying by one spherical body. Furthermore, the flow of the liquid composition from the outlet 44 during non-spraying can be effectively suppressed. FIG. 10 shows an embodiment in which the flow of the liquid composition from the discharge port of the liquid composition holding unit is suppressed using two or more spherical bodies.

  FIG. 10 shows a cartridge holder 240 that holds the cartridge 100 as the liquid composition holding portion. The cartridge holder 240 has a first spherical body 246 that is rotatably held near the discharge port 244 and a second spherical body that is rotatably held at a position farther from the discharge port 244 than the first spherical body 246. The spherical body 248 is provided.

  The first spherical body 246 is a sphere composed of a rigid body such as a metal, and is accommodated in the cartridge holder 240 tapered on the discharge port 244 side, and is interfered by the inner wall of this portion to discharge the discharge port. It is held at a predetermined part on the 244 side. On the inner wall in the vicinity of the discharge port 244 in the cartridge holder 240 where the first spherical body 246 is abutted and held, a straight concave portion 250 directed to the discharge port 244 is formed. The concave portion 250 is formed to have such a size that the liquid composition can be prevented from passing during non-spraying and can pass through the liquid composition when a spray pressure is applied to the liquid composition during spraying. ing. Further, together with the concave portion 250, one or more that can suppress the passage of the liquid composition at the time of non-spraying and allow the liquid composition to pass when an ejection pressure is applied to the liquid composition at the time of spraying. The convex portion 252 can be provided. By providing the convex portion 252, the gap between the concave portion 250 and the first spherical body 246 can be reliably ensured, and the ejection state of the liquid composition during spraying can be further stabilized. The convex portion 252 may be on the surface of the first spherical body 246. Further, the convex portion 252 may be provided instead of the concave portion 250. A necessary gap can be formed also by providing only the convex portion 252.

  The second spherical body 248 is a spherical body having a larger diameter than the first spherical body 246 and made of a rigid body such as a metal. In this state, the movement toward the discharge port 244 is suppressed. The liquid composition is held so as to suppress the flow of the liquid composition to the discharge port 244 side. By providing the second spherical body 248, the liquid composition can be prevented from flowing down during non-spraying in combination with the liquid composition flowing-down suppressing effect of the first spherical body 246. Note that the second spherical body 248 does not necessarily have a larger diameter than the first spherical body 246. The size and the like of the second spherical body 248 are determined according to the form and the like of the liquid composition holding unit 140.

  The second spherical body 248 has a spherical shape provided with an opening 262 that allows the liquid composition during spraying to pass through the second spherical body 248 within the cartridge holder 240 and can suppress the liquid composition from flowing down when not spraying. It can be held by the body holding member 260. The spherical body holding member 260 can be a cylindrical body or a ring-shaped body, and the opening can be these holes. Preferably, as shown in FIG. 10, the spherical body holding member 260 constitutes a part of a sleeve 270 that communicates the inside of the cartridge main body C and the discharge port 244 with the cartridge holder 240. That is, the spherical body holding member 260 forms the discharge port 244 side of the sleeve 270. The sleeve 270 is stably fitted in the cartridge holder 240 by fitting, locking, or the like between the inner plug 101 of the cartridge main body C and the rear end side of the holding portion of the first spherical body 246 of the cartridge holder 240. Is supposed to be retained. The sleeve 270 may be stored in advance in the cartridge holder 240, or may be provided in the cartridge body C in advance as a fitting or integral with the inner plug 101 of the cartridge body C. .

The spherical body holding member 260 may have an opening 262 that communicates with the discharge port 244 and can be closed by the second spherical body 248 on the discharge port 244 side of the sleeve 270. As shown, an opening end surface 264 (wall surface around the periphery of the opening 262) directed to the second spherical body 248 is provided. By having the opening end surface 264, when a spraying pressure is applied during spraying, the dischargeability of the liquid composition from the opening 262 can be easily ensured.
Further, the opening end surface 264 may be orthogonal to the central axis directed to the discharge port 244 of the cartridge holder 240, but is preferably inclined as shown in FIG. By having the opening end surface 264 inclined in this way, and the second spherical body 248 abuts on the opening end surface 264, the opening 262 is substantially covered with the second spherical body 248 during non-spraying, and is liquid. While suppressing the flow of the composition, at the time of spraying, the discharge opening 244 side and the cartridge main body C side are communicated with each other by the inclined opening end surface 264 and the opening 262, so that the liquid composition can be stably discharged. it can. When the opening end surface 264 is orthogonal to the central axis, the gap between the opening 262 and the second spherical body 248 is too small depending on the combination of the second spherical body 248 and the opening 262, and the discharge port. It is difficult for the 244 side and the cartridge body C side to communicate with each other, and the liquid composition may not be discharged to the liquid composition discharge port 244 side even when the ejection pressure is applied. Regardless of the relationship between the second spherical body 248 and the opening 262, the liquid composition can be easily ejected stably.

  In the embodiment shown in FIG. 10, the air supply part into the cartridge holder 240 can use a screwing part between the cartridge holder and the cartridge main body C as shown in FIG.

  According to the embodiment shown in FIG. 10, the two spherical bodies 246 and 248 can effectively suppress the flow of the liquid composition during non-spraying and prevent the stable ejection of the liquid composition during spraying. There is no such thing. In particular, when the second spherical body 248 is held by the spherical body holding member 260 having the opening end surface 264, the ejection of the liquid composition can be easily and stably ensured during spraying.

  In the embodiment shown in FIG. 10, the liquid composition holding portion as the cartridge holder 240 has been described. However, as already described, the liquid composition as a container that directly stores the liquid composition without mounting the cartridge body C is used. The composition holding unit may also include one or more spherical bodies, specifically, a first spherical body and a second spherical body as shown in FIG. Ease of jetting and stability of the liquid composition at the time of spraying can be secured while further suppressing the flow of the liquid composition at the time of spraying. Even in this case, the various aspects already described can be adopted, and the effects of the adopted aspects can be obtained.

It is a figure which shows the spray kit which is one Embodiment of this invention. It is a figure which shows the spray apparatus which is one Embodiment of this invention. It is sectional drawing which shows the detail of a cartridge holder. It is a figure which shows another example of the sleeve of a cartridge holder. It is a figure which shows an example of the insert of a cartridge holder. It is a figure which shows an example of the air supply part in a cartridge holder, and another example of an insert. It is a figure which shows an example of the air supply structure in a cartridge main body. It is a figure which shows another example of the air supply structure in a cartridge main body. It is a figure which shows another example of a liquid composition holding | maintenance part. It is a figure which shows another example of the liquid composition holding | maintenance part as a cartridge holder.

Explanation of symbols

2 spray device, 4 main body, 4a gas container, 6 operation part, 8 gas ejection port, 10 cartridge unit, 20 nozzle part, 22 gas ejection nozzle, 24 leg part, 26 bracket, 26a engagement part, 28 base part, 40 cartridge Holder, 42 Cartridge holder opening, 44 Water-based paint discharge port, 46 Spherical body, 48a Concave part, 50, 51
Sleeve, 51a Taper, 51b Opening, 52, 64 Air supply pipe, 53, 66
Air intake port, 54 insert, 54a tip, 54b cavity, 56 edge, 58 slit, 62 opening, 65 air supply port, 70 cap, 72 protrusion, 100 cartridge, 101 cartridge inner plug, 102 spray kit, 140 Liquid composition holding portion, 142 Opening of liquid composition holding portion, 144 Liquid composition discharge port, 148 Insert, 150 Tip portion, 152 Lid portion, 154 Liquid composition introduction port, 156 Cap, 240 Cartridge holder, 244 Liquid Composition outlet, 246 First spherical body, 248 Second spherical body, 250 concave portion, 252 convex portion, 260 spherical body holding member, 262 opening, 264 opening end face, 270 sleeve, C cartridge main body.

Claims (31)

A spray device for a liquid composition,
A body with a gas container;
A gas ejection nozzle for ejecting gas from the gas container;
While holding the liquid composition directly or indirectly, a liquid composition holding unit comprising a liquid composition discharge port for discharging the held liquid composition;
With
The liquid composition holding part is directed downward to the extent that the held liquid composition can flow down, the gas ejection nozzle is directed downward from the horizontal, and the tip thereof is the liquid of the liquid composition holding part A spray device located near the composition outlet.   2. The spray device according to claim 1, wherein the liquid composition holding unit is a cartridge holder that indirectly holds the liquid composition by holding a vicinity of an opening of a cartridge filled with the liquid composition.   The cartridge holder has an opening capable of holding the vicinity of the opening of the cartridge and has a container shape capable of receiving the liquid composition flowing down from the cartridge, and includes the liquid composition discharge port in the vicinity of the bottom thereof. Item 3. The spray device according to Item 2.   The spray device according to claim 2 or 3, wherein the cartridge holder includes a sleeve that is accommodated in the cartridge holder and communicates with an opening of the cartridge and the liquid composition discharge port.   The spray device according to claim 4, wherein the sleeve has a tapered portion whose opening diameter gradually decreases toward the liquid composition discharge port side.   The spray device according to claim 5, wherein an opening in the tapered portion of the sleeve is larger than an opening diameter of the liquid composition discharge port. The cartridge holder includes an insert accommodated therein,
The insert is
A front end portion that can be fitted in the vicinity of the liquid composition discharge port to close the liquid composition discharge port;
A cavity communicating with the opening of the cartridge and capable of receiving the liquid composition, the cavity comprising a liquid composition outlet opening communicating with a space formed between the cavity and the cartridge holder;
The spray device according to claim 2, comprising:   The spray device according to claim 7, wherein the insert has an edge that protrudes outward along the periphery of the insert and can be elastically deformed while being able to be locked to a predetermined inner wall portion of the cartridge holder. .   The spray device according to claim 7 or 8, wherein the insert has an opening / closing degree of the liquid composition discharge port adjusted according to an insertion depth into the cartridge holder.   The spray device according to claim 9, wherein the insert can be fitted in the vicinity of an opening of the cartridge, and an insertion depth into the cartridge can be adjusted by an insertion depth of the cartridge into the cartridge holder. .   The cartridge holder holds a spherical body rotatably at a predetermined position near the liquid composition discharge port in a state where movement from the predetermined portion to the liquid composition discharge port side is suppressed. The spray apparatus in any one of 1-6. The cartridge holder is
1 or 2 or more recessed parts which form the gap | interval which can flow the said liquid composition between the said spherical body surface and the said inner wall in the said spherical body surface or the inner wall of the said cartridge holder holding the said spherical body The spray device according to claim 11, comprising:   The spray according to any one of claims 2 to 12, wherein the cartridge holder includes an air supply unit that supplies air so that the liquid composition can flow down from the liquid composition discharge port when spraying the liquid composition. apparatus. The opening of the cartridge holder and the opening of the cartridge each have a female screw part and a male screw part that are screwed together,
The air supply part is one or two or more slits in which at least a part of the female screw part or the male screw part is cut out and air can flow through the screwed part even during screwing. The spray device according to claim 13.   The spray device according to claim 1, wherein the liquid composition holding unit is a container that can store the liquid composition and includes an inlet for the liquid composition.   The liquid composition holding part adjusts the fitting state of the insert having a tip portion that can be fitted in the vicinity of the liquid composition discharge port and can close the liquid composition discharge port to the liquid composition discharge port. 16. A spray device as claimed in claim 15, comprising the possibility.   The fitting state of the tip portion of the insert to the liquid composition discharge port is adjusted by an insertion depth of the tip portion into the liquid composition discharge port by a screw mechanism including the insert. Or the spray apparatus of 16. A kit for a spray device,
The spray device is
A main body including a gas container, a gas ejection nozzle for ejecting gas from the gas container, and a liquid that holds the vicinity of the opening of the cartridge filled with the liquid composition and discharges the liquid composition in the cartridge A cartridge holder having a composition discharge port, and the cartridge holder is directed downward such that the liquid composition in the cartridge can flow down, and the gas ejection nozzle is directed downward from the horizontal. And its tip is a spray device located in the vicinity of the liquid composition outlet of the cartridge holder,
The kit is
The body;
A cartridge unit that can be directly or indirectly attached to or detached from the main body, and includes at least the cartridge holder;
With
The gas ejection nozzle may be detachably attached to either the main body or the cartridge unit, or may be integrated with either the main body or the cartridge unit.   The kit according to claim 18, further comprising a sleeve that can be accommodated in the cartridge holder and communicates with an opening of the cartridge and the liquid composition outlet.   The liquid composition can be accommodated in the cartridge holder and can be fitted in the vicinity of the liquid composition discharge port to close the liquid composition discharge port, and communicated with the opening of the cartridge. 19. A kit according to claim 18, comprising an insert having a cavity capable of receiving a cavity and having a liquid composition outlet port communicating with a space formed between the cavity and the cartridge holder.   21. A cap member having a projection part capable of opening the air supply port in the cartridge and having a shielding part for blocking the air supply port opened in the cartridge by the projection part. The kit in any one of. A cartridge unit for a spray device,
The spray device is
A main body including a gas container, a gas ejection nozzle for ejecting gas from the gas container, and a liquid that holds the vicinity of the opening of the cartridge filled with the liquid composition and discharges the liquid composition in the cartridge A cartridge holder having a composition discharge port, and the cartridge holder is directed downward such that the liquid composition in the cartridge can flow down, and the gas ejection nozzle is directed downward from the horizontal. And its tip is a spray device located in the vicinity of the liquid composition outlet of the cartridge holder,
A cartridge unit comprising at least the cartridge holder.   The unit according to claim 22, wherein the cartridge unit includes the gas ejection nozzle.   The liquid composition holding unit holds a spherical body at a predetermined position near the liquid composition discharge port so as to be rotatable in a state where movement from the predetermined portion to the liquid composition discharge port side is suppressed. Item 4. The spray device according to Item 1. The liquid composition holding part is
A first spherical body that is rotatably held in a state where movement from the first predetermined portion toward the liquid composition discharge port side is suppressed at a first predetermined portion in the vicinity of the liquid composition discharge port; ,
In a second predetermined portion that is further away from the liquid composition discharge port than the first predetermined portion, it is rotatable in a state in which movement to the liquid composition discharge port side is suppressed from the second predetermined portion. A second spherical body held by
25. A spray device according to claim 24, comprising:   A gap is formed between the first spherical body and the first spherical body to the extent that the liquid composition can flow down on the surface of the first spherical body or the inner wall of the liquid composition holding member that holds the spherical body. Or the spray apparatus of Claim 25 which has a 2 or more recessed part.   27. The spray device according to claim 25 or 26, wherein the first spherical body or the inner wall has one or more convex portions that can form the gap.   The liquid composition holding unit has a spherical body holding member provided with an opening that allows the liquid composition to pass through when the gas is ejected by the second spherical body and suppresses the liquid composition from flowing down when the gas is not ejected. The spray device according to any one of claims 25 to 27, comprising:   The opening end surface of the spherical body holding member that contacts the second spherical body is inclined rather than perpendicular to a central axis that is directed to the liquid composition discharge port of the liquid composition holding portion. The spray device according to 1. The liquid composition holder is a cartridge holder that indirectly holds the liquid composition by holding the vicinity of the opening of the cartridge filled with the liquid composition,
30. The spray device according to claim 28 or 29, wherein the spherical body holding member constitutes the liquid composition outlet side portion of a sleeve communicating with the opening of the cartridge and the liquid composition outlet. The opening of the cartridge holder and the opening of the cartridge each have a female screw part and a male screw part that are screwed together,
At least a part of the female screw part or the male screw part has a notch shape, and includes an air supply part that is one or two or more slits through which air can circulate even during screwing. Item 31. The spray device according to Item 30.