Aerosol spraying device

Abstract

To provide an improved aerosol spraying device having two aerosol valves.SOLUTION: An aerosol spraying device includes a first aerosol valve 41, a first operating unit for operating the first aerosol valve 41 to spray, a second aerosol valve 42 and a second operating unit for operating the second aerosol valve 42 to spray. The operating method of the first operating unit is different from the operating method of the second operating unit. For example, the first operating unit is operated by a lever 23, and the second operating unit by a push button 60.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an aerosol spray device having two aerosol valves. [Background technology]

[0002] Patent Document 1 discloses an aerosol product in which one valve communicates with the gas phase and the other valve communicates with the liquid phase, so that when the two valves are opened simultaneously, gas and liquid are simultaneously sprayed. Patent Document 2 discloses a two-liquid discharge device that can select the contents to be discharged by blocking one of the two valve passages. Patent Document 3 discloses an aerosol product that can emit a loud spray sound while spraying an aerosol composition. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6959348 [Patent Document 2] Patent No. 5973740 [Patent Document 3] Patent No. 4555432 Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 can spray both gas and liquid simultaneously, but cannot spray only one of them. This is also true for Patent Document 3. Patent Document 2 allows the user to select the content to be dispensed, but the valve requires a single operation method (pressing a push button) regardless of which content is dispensed, which means there is a risk of accidentally dispensing the content on the unintended side.

[0005] The present invention is directed to an improved aerosol spray device having two aerosol valves. [Means for solving the problem]

[0006] The aerosol spraying device of the present invention comprises a first aerosol valve 41, a first operating unit for operating the first aerosol valve 41 to spray, a second aerosol valve 42, and a second operating unit for operating the second aerosol valve 42 to spray, and is characterized in that the operating method of the first operating unit is different from the operating method of the second operating unit.

[0007] In the aerosol spraying device, the first operating part is preferably a lever 23 and the second operating part is preferably a push button 60.

[0008] It is also preferable that the aerosol spray device further comprises a container body 30 and a holder body 21 that houses the container body 30, a first aerosol valve 41 is attached to the container body 30, and the first operating part is a lever 23 rotatably attached to the holder body 21 that opens the first aerosol valve 41 by moving the container body 30 within the holder body 21.

[0009] It is also preferable to provide a changeover switch 24 that can be moved to a position that covers the push button 60 so that the push button 60 is pressed when the container body 30 moves within the holder body 21 as a result of operating the lever 23. [Effects of the Invention]

[0010] The aerosol spraying device of the present invention has different operating methods for the first operating unit for spraying the first aerosol valve and the second operating unit for spraying the second aerosol valve, thereby preventing erroneous operation such as accidentally spraying the unintended side.

[0011] When the first operating unit is a lever and the second operating unit is a push button, the first operating unit is operated by pulling or squeezing, while the second operating unit is operated by pushing, so the operating methods are clearly different and erroneous operation can be more effectively prevented. In particular, because the objects to be operated are different, the effect of preventing erroneous operation is high.

[0012] If the device further comprises a container body and a holder body that houses the container body, a first aerosol valve is attached to the container body, and the first operating part is a lever rotatably attached to the holder body that opens the first aerosol valve by moving the container body within the holder body, the first operating part is clearly different from the second operating part, which is a push button, and erroneous operation can be further prevented.

[0013] In the case of a selector switch that can be moved to a position that covers the push button so that the push button is pressed by operating the lever to move the container body within the holder, moving the selector switch to a position that covers the push button allows the first and second aerosol valves to be opened simultaneously by simply operating the lever, while moving the selector switch to a position that does not cover the push button prevents the second aerosol valve from being opened by simply operating the lever. In other words, the selector switch allows the selection of simultaneous injection or individual injection. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a cross-sectional view of an aerosol spray device according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded cross-sectional view of the aerosol container. [Figure 3] FIG. [Figure 4] 4A is a plan view of the mounting cup, and FIG. 4B is an end view taken along line VV of FIG. [Figure 5] FIG. 5A is a cross-sectional view showing individual injection, and FIG. 5B is a cross-sectional view showing simultaneous injection. [Figure 6] FIG. 10 is a cross-sectional view of another aerosol spray device. [Figure 7] 7A is a plan view of the upper connector, and FIG. 7B is an end view taken along line VI-VI in FIG. [Figure 8] FIG. 10 is a cross-sectional view showing another aerosol container. DETAILED DESCRIPTION OF THE INVENTION

[0015] Next, an aerosol spraying device 2 according to one embodiment of the present invention will be described in detail with reference to the drawings. As shown in Fig. 1, the aerosol spraying device 2 includes an aerosol container 10 and a holder 20 that accommodates the aerosol container 10.

[0016] First, the aerosol container 10 will be described. The aerosol container 10 is a pressure-resistant container, and includes a container body 30 that contains the contents, and a valve assembly 40 that is attached to the container body 30.

[0017] The container body 30 is made of a metal such as tinplate or aluminum. As shown in Fig. 2, the container body 30 includes a substantially disk-shaped bottom 30a, a substantially cylindrical body 30b extending upward from the outer edge of the bottom 30a, a substantially tapered shoulder 30c tapering upward from the upper end of the body 30b, a substantially cylindrical neck 30d provided at the upper end of the shoulder 30c, a bead 30e formed in an annular shape at the upper end of the neck 30d, and an opening 30f opening at the upper end of the bead 30e. The container body 30 may also be made of a synthetic resin such as polyethylene terephthalate. In this case, a thick flange is provided instead of the bead 30e.

[0018] The valve assembly 40 includes a first aerosol valve 41 for spraying a first aerosol valve C1 described later, a second aerosol valve 42 for spraying a second aerosol valve C2 described later, a valve holder 43 that houses the first aerosol valve 41 and the second aerosol valve 42, and a mounting cup 44 that fixes the valve holder 43 to the opening 30f of the container body 30.

[0019] The first aerosol valve 41 includes a stem 45 with a stem hole 45a, a stem rubber 46 that closes the stem hole 45a, a biasing member (spring) 47 that constantly biases the stem 45 upward and maintains the stem hole 45a closed by the stem rubber 46, a housing 48 that houses the stem 45, the stem rubber 46, and the biasing member 47, and a cover cap 49 that secures the stem 45, the stem rubber 46, and the biasing member 47 to the housing 48. When the stem 45 is pushed down (pushed toward the housing 48) or tilted, the first aerosol valve 41 opens, releasing the blockage of the stem hole 45a by the stem rubber 46, and allowing the contents contained in the aerosol container 10 to be sprayed. A dip tube 50 is connected to the lower end of the housing 48 of the first aerosol valve 41, and the dip tube 50 is capable of sucking up only the first jet C1, which is a liquid.

[0020] The second aerosol valve 42 has the same configuration as the first aerosol valve 41. As shown in FIG. 1, a push button 60 is attached to the stem 45 of the second aerosol valve 42 as a second operating part for operating the second aerosol valve 42 to spray. By pressing the push button 60, the second aerosol valve 42 opens, and the contents are sprayed from the push button 60. The dip tube 50 is not connected to the second aerosol valve 42. The lower end of the housing 48 is open to the gas phase within the container body 30, so that only the second jet C2, which is a gas, can be sprayed. The push button 60 has an amplification function that amplifies the spray sound, and the loud sound produced when the second jet (gas) C2, described below, is sprayed can be expected to have a pest repellent effect. The amplification function is achieved by a resonator 62, which produces sound by accumulating pressure from the second jet C2 ejected from the stem 45 of the second aerosol valve 42 and vibrating, and a trumpet-shaped outlet 61 that directs the sound to the outside, as shown in Figure 3, for example.

[0021] Valve holder 43 is generally cylindrical, and its lower portion is housed in neck portion 30d of container body 30. As shown in Fig. 2, valve holder 43 has two housing holes 43a that penetrate vertically and are arranged side by side in a plan view. One of these two housing holes 43a houses first aerosol valve 41, and the other houses second aerosol valve 42.

[0022] The mounting cup 44 is roughly cup-shaped and is turned upside down, and covers the valve holder 43 from above, which houses the first aerosol valve 41 and the second aerosol valve 42. The lower end is fixed to the bead portion 30e of the container body 30 by, for example, crimping.

[0023] 4A, the planar shape of the mounting cup 44 is approximately D-shaped and is composed of one arcuate portion 44a and one linear portion 44b. This is intended to restrict the direction in which the aerosol container 10 can be placed in the holder 20. That is, the holder 20 is provided with a direction-restricting portion (a protruding portion 21b, described later) that contacts the arcuate portion 44a, preventing placement, but does not contact the linear portion 44b, allowing placement. This mechanism ensures that the aerosol container 10 can be placed in the holder 20 only when it is oriented in a specific direction. This allows the stem 45 of the first aerosol valve 41 to be reliably connected to the intended location (specifically, the nozzle 22, described later), even though the cylindrical aerosol container 10 has two stems 45.

[0024] The aerosol container 10 having the above-described structure is filled with a content. The content (aerosol composition) comprises a concentrate and a liquefied gas.

[0025] The concentrate contains active ingredients and solvents and is sprayed externally using liquefied gas to exert its effects. Active ingredients include irritants such as capsaicin (chili pepper) and wasabi, terpenes such as menthol and camphor, sublimable substances such as naphthalene, antibacterial and disinfectant agents such as hinokitiol and cresol, insecticides such as transfluthrin, metofluthrin, fenothrin, and permethrin, mite repellents such as hexyl caprylate and benzyl salicylate, pest repellents such as N,N-diethyl-m-toluamide, essential oils such as peppermint oil and eucalyptus oil, and various fragrances, including natural and synthetic fragrances. The solvent can be selected appropriately depending on the active ingredient, and examples include water, alcohols, liquid oils, and mixtures thereof.

[0026] In addition to the active ingredient and solvent, the concentrate may contain thickeners and powders. Thickeners are used to adjust the particle size of the sprayed particles and extend the spray distance. Examples of thickeners include cellulose polymers such as cellulose nanofiber, hydroxymethylcellulose, hydroxyethylcellulose, and hydroxypropylcellulose; gums such as xanthan gum and carrageenan; water-soluble thickeners such as sodium alginate, sodium hyaluronate, polyvinyl alcohol, and carboxyvinyl polymer; and oil-soluble thickeners such as dextrin palmitate. Powders are used to enable the sprayed area to be identified and to prolong the effectiveness of the active ingredient. Examples of powders include talc, silica, zeolite, kaolin, mica, magnesium carbonate, calcium carbonate, zinc silicate, magnesium silicate, aluminum silicate, calcium silicate, titanium oxide, zinc oxide, coloring pigments, and 2,4,6-triisopropyl-1,3,5-trioxane (a sublimable substance).

[0027] The concentrate can be prepared by dissolving or dispersing the active ingredient and other additives in a solvent.

[0028] Liquefied gases are liquids with vapor pressure in an aerosol container, and can dissolve a concentrate to form a homogeneous phase or emulsify with the concentrate to form an emulsion. The liquefied gas is not particularly limited. Examples of liquefied gases include liquefied petroleum gas (LPG), which is propane, normal butane, isobutane, and mixtures thereof, hydrofluoroolefins such as trans-1,3,3,3-tetrafluoropropene, dimethyl ether, and mixtures thereof.

[0029] The contents are separated into a liquid (liquid phase) and a gas (gas phase) inside the aerosol container 10. In this embodiment, a mixture of the concentrate and the liquid liquefied gas becomes the first projectile C1, and the vaporized liquefied gas (gas) becomes the second projectile C2 (see FIG. 1). The contents filled into the aerosol sprayer 2 constitutes the aerosol product 1. Its use is as a pest repellent, for example to scare away vermin such as bears.

[0030] The method for filling the aerosol container 10 with the contents is not particularly limited, but for example, the container body 30 is filled with the concentrate, the container body 30 is then sealed with the valve assembly 40, and the liquefied gas is then filled into the container body 30 through the first aerosol valve 41 and / or the second aerosol valve 42. However, the liquefied gas may also be under-filled into the container body 30 before the container body 30 is sealed with the valve assembly 40.

[0031] Next, the holder 20 will be described. As shown in Fig. 1, the holder 20 includes a holder body 21 that accommodates the aerosol container 10, a nozzle 22 that connects to the stem 45 of the first aerosol valve 41, a lever 23 that serves as a first operating part for operating the first aerosol valve 41 to spray, and a changeover switch 24 that switches between individual spraying of the first aerosol valve 41 and simultaneous spraying of the first aerosol valve 41 and the second aerosol valve 42.

[0032] The holder body 21 has a generally cylindrical storage section 21a capable of storing the aerosol container 10 therein. The above-mentioned direction-restricting section is provided at the top of the storage section 21a. This direction-restricting section is composed of a protrusion 21b protruding laterally from the inner surface of the storage section 21a (see FIG. 4B). The nozzle 22 and the selector switch 24 are located above the direction-restricting section. The rear of the selector switch 24 is open for pressing down the push button 60. The lower part of the storage section 21a is open as a storage opening 21c for storing the aerosol container 10 therein. That is, the aerosol container 10 is inserted from bottom to top. The storage opening 21c may be closed by a bottom lid 21d so that it can be opened and closed. The front of the storage section 21a is open so that the lever 23 can be retracted. The inner surface of the holder body 21 is provided with a rib-like protrusion 25 as a positioning means for positioning the aerosol container 10 within the storage section 21a. The aerosol container 10 is accommodated in a state in which it can move up and down, and the up and down movement is guided by the inner peripheral surface of the accommodation portion 21a and the rib-like protrusions 25.

[0033] The nozzle 22 has a spray passage 22a for spraying the first spray material C1 into the outside air. The stem 45 of the first aerosol valve 41 is connected to the lower end of the spray passage 22a. The nozzle 22 is fixed to the holder body 21 and does not move up and down. Therefore, when connected to the nozzle 22, the stem 45 of the first aerosol valve 41 does not move up and down, even if other parts of the aerosol container 10 move up and down.

[0034] Lever 23 is generally L-shaped in side view, with the upper part of the vertical line of the L pivotally supported on the upper front part of holder body 21 and rotatable in the front-to-rear direction around shaft 23a. The part of the L that corresponds to the horizontal line is located below aerosol container 10, and its upper surface is inclined surface 23b that slopes upward from the tip to the base end. Therefore, when lever 23 is pulled backward while gripping holder body 21, inclined surface 23b pushes aerosol container 10 up from below.

[0035] The selector switch 24 is movable. Specifically, it can slide back and forth. When slid forward, it does not cover the push button 60, allowing the user to press the push button 60 with a finger or the like. When the push button 60 is pressed in this state, the second aerosol valve 42 opens, allowing the second jet C2 to be sprayed from the push button 60. When the lever 23 is pulled, the lever 23 pushes (moves) the container body 30 upward, creating the same state as when the stem 45 of the first aerosol valve 41 is pressed in, opening the first aerosol valve 41 and spraying the first jet C1 from the nozzle 22 (see FIG. 5A).

[0036] As described above, the aerosol sprayer 2 of the present invention has different operating methods for spraying the first propellant C1 and spraying the second propellant C2. Specifically, the lever 23 is pulled to open the first aerosol valve 41, and the push button 60 is pressed to open the second aerosol valve 42, preventing accidental spraying of the unintended propellant. In particular, the lever 23, which is the first operating part, and the push button 60, which is the second operating part, are located in different positions, with the lever 23 located at the front of the entire aerosol sprayer 2 and the push button 60 located at the top of the entire aerosol sprayer 2, further preventing accidental spraying. Therefore, despite having two uses (spraying the active ingredient and generating a loud noise), the two can be used correctly even in an emergency.

[0037] As shown in FIG. 5B, the selector switch 24 can be slid backward to cover the push button 60. When the selector switch 24 covers the push button 60, the user cannot press the push button 60. However, because the selector switch 24 restricts the upward movement of the push button 60, pulling the lever 23 to lift the aerosol container 10 creates the same condition as pressing the stem 45 of the second aerosol valve 42, opening the second aerosol valve 42 and spraying the second product C2. At the same time, the first aerosol valve 41 also opens, so the first product C1 is also sprayed simultaneously. Therefore, in situations where simultaneous spraying is desirable, operating the selector switch 24 in advance allows for quick simultaneous spraying.

[0038] To stop the injection of the first injection product C1 or the second injection product C2, the injection operation can be stopped. Specifically, in the case of individual injection, the pulling of the lever 23 or the pressing of the push button 60 can be stopped, and in the case of simultaneous injection, the pulling of the lever 23 can be stopped. When the injection operation is stopped, the stem 45 returns to its original position before being pressed, for example, by the biasing force of the biasing member 47, and each aerosol valve 41, 42 is again in the closed state.

[0039] Next, another aerosol spraying device 2A of the present invention will be described. As shown in Fig. 6, this aerosol spraying device 2A includes a first aerosol container 11 and a second aerosol container 12. The first aerosol container 11 and the second aerosol container 12 are integrated with a connector to form an aerosol container 10A.

[0040] The first aerosol container 11 includes a container body 30 and a first aerosol valve 41. The second aerosol container 12 includes a container body 30 and a second aerosol valve 42. The first aerosol container 11 is filled with a first projectile C1, which is a mixture of a concentrate and a liquid liquefied gas. The second aerosol container 12 is filled with a liquefied gas as a second projectile C2, with the gas phase maintained.

[0041] The connector includes an upper connector 13 that fits over the top of the first aerosol container 11 and the top of the second aerosol container 12, connecting the tops of the first aerosol container 11 and the second aerosol container 12, and a lower connector 14 that fits over the bottom of the first aerosol container 11 and the bottom of the second aerosol container 12, connecting the bottoms of the first aerosol container 11 and the second aerosol container 12.

[0042] As shown in FIG. 7A, the upper connector 13 has a generally oval shape in plan view, and includes two arcuate sections 13a, one in front and one in back, and two straight sections 13b connecting the arcuate sections 13a. One of the straight sections 13b is provided with a rib 13c as a direction-regulating section. As shown in FIG. 7B, the holder 20A is provided with a recess 21e corresponding to the rib 13c, and the aerosol container 10A can be accommodated in the holder 20A only in a direction that allows the rib 13c to be inserted into the recess 21e. Therefore, despite the presence of two stems 45, the stem 45 of the first aerosol valve 41 can be reliably connected to the nozzle 22.

[0043] The rest of the configuration is the same as that of the aerosol sprayer 2 shown in FIG. 1. Specifically, by pulling the lever 23, which is the first operating part, the container body 30 moves upward within the holder body 21, which in turn pushes the stem 45 of the first aerosol valve 41 into an open state, allowing the first sprayed substance C1 to be sprayed. At this time, if the selector switch 24 covers the push button 60, the second aerosol valve 42 also opens, allowing the first sprayed substance C1 and the second sprayed substance C2 to be sprayed simultaneously. If the selector switch 24 does not cover the push button 60, the second sprayed substance C2 can be sprayed by pressing the push button 60, regardless of the operation of the lever 23. In this aerosol sprayer 2A, when one aerosol container is empty, it can be replaced with a new one.

[0044] Although the above describes an embodiment of the present invention, the present invention is not limited to the above embodiment and can be implemented with various modifications within the scope of the present invention. For example, in the aerosol spraying device 2 of FIG. 1, the container body 30 is not partitioned. However, as shown in FIG. 8, a separate inner container 70 such as a pouch may be provided to partition the interior. In this case, for example, the inner container 70 is filled with a first injection material C1, and the space between the inner container 70 and the container body 30 is filled with a second injection material C2. However, the reverse is of course also possible. Also, while the first injection material C1 is liquid and the second injection material C2 is gas, both may be liquids or both may be liquids. While the nozzle 22 is fixed to the holder body 21, its vertical movement may be restricted by the selector switch 24. In other words, the selector switch 24 may simply cover the nozzle 22 at all times. Even in this case, the first injection material C1 can be sprayed by operating the lever 23. In addition to repelling pests, aerosol spray devices can also be used in hair care products, in which styling products or treatment products are sprayed onto the hair as the first spray C1 and gas as the second spray C2, and the product is left to dry in a short time; nail care products, in which nail polish is sprayed onto the nails as the first spray C1 and gas as the second spray C2, and the product is left to dry in a short time; and pest repellent products, in which pest repellent is sprayed onto the arms or legs as the first spray C1 and gas as the second spray C2, which emits a sound that pests dislike, repelling pests. [Explanation of symbols]

[0045] 1. Aerosol products 2. 2A aerosol sprayer 10, 10A Aerosol container 11 First aerosol container 12 Second aerosol container 13 Upper connector 13a Arc section 13b Straight section 13c Rib (direction control part) 14 Lower connector 20, 20A holder 21 Holder body 21a Storage section 21b Convex portion (direction control portion) 21c Entrance 21d bottom cover 21e Recess 22 nozzles 22a Injection passage 23 Lever (first operating part) 23a Shaft 23b Slope 24 Selector switch 25 Protrusion (positioning means) 30 Container body 30a bottom 30b Torso 30c shoulder 30d neck 30e bead part 30f opening 40 Valve Assembly 41 First aerosol valve 42 Second aerosol valve 43 Valve holder 43a Receiving hole 44 Mounting Cup 44a Arc section 44b Straight section 45 stem 45a stem hole 46 Stem Rubber 47 biasing member 48 Housing 49 Cover cap 50 dip tubes 60 Push button (second operating part) 61 Air Outlet 62 Sound board 70 Inner container C1 1st projectile C2 2nd projectile

Claims

1. a first aerosol valve; a first operating portion for operating the first aerosol valve to spray; a second aerosol valve; a second operating part for operating the second aerosol valve to spray, An aerosol spraying device in which a first operating section and a second operating section are operated in different ways.

2. 2. The aerosol spray device according to claim 1, wherein the first operating part is a lever and the second operating part is a push button.

3. A container body; a holder body that accommodates the container body, a first aerosol valve attached to the container body; 3. The aerosol spray device according to claim 2, wherein the first operating part is a lever rotatably attached to the holder body, which opens the first aerosol valve by moving the container body within the holder body.

4. 4. The aerosol spray device according to claim 3, further comprising a changeover switch that can be moved to a position that covers the push button so that the push button is pressed when the container body is moved within the holder by operating the lever.

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