Aerosol valve, coil spring, aerosol product, and method for assembling an aerosol valve.

Abstract

The present invention provides an aerosol valve using a coil spring with a configuration that prevents multiple coil springs from becoming entangled, a coil spring for an aerosol valve, an aerosol product, and a method for assembling an aerosol valve. [Solution] The coil spring of the aerosol valve has a first seat winding provided at one end of the coil spring, a second seat winding provided at the other end of the coil spring, and an expandable portion between the first seat winding and the second seat winding, wherein the expandable portion includes a first portion having a first pitch, a second portion having a second pitch, and a third portion disposed between the first portion and the second portion and having a third pitch smaller than the first and second pitches.

Description

Technical Field

[0001] The present invention relates to an aerosol valve, a coil spring, an aerosol product, and a method for assembling an aerosol valve.

Background Art

[0002] An aerosol product is a product that can eject a liquid ejectable substance (chemicals, paints, etc.) enclosed in an aerosol injector in the form of mist or foam to the outside, and is used in a wide range of applications such as household and industrial use. An aerosol injector includes a container that houses the ejectable substance, and an aerosol valve that controls the start and stop of ejection of the ejectable substance to the outside of the container and the ejection amount.

[0003] An aerosol valve includes, for example, a housing having a space inside, a coil spring housed in the space, a stem having one end supported by the coil spring and having a flow path for the ejectable substance formed inside, and a stem rubber provided so as to block the space and the flow path (see Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the production of an aerosol valve, when handling the coil springs that constitute the aerosol valve, a plurality of coil springs may become entangled with each other. Coil springs whose entanglement is not resolved are discarded. Thus, the entanglement of a plurality of coil springs has led to an increase in the cost involved in the production of aerosol valves.

[0006] Therefore, the object of the present invention is to provide an aerosol valve using a coil spring having a configuration that prevents multiple coil springs from becoming entangled, a coil spring having a configuration that prevents multiple coil springs from becoming entangled, an aerosol product using a coil spring having a configuration that prevents multiple coil springs from becoming entangled, and a method for assembling an aerosol valve using a coil spring having a configuration that prevents multiple coil springs from becoming entangled. [Means for solving the problem]

[0007] A coil spring constituting an aerosol valve provided in one aspect of the present invention comprises a first seat coil provided at one end of the coil spring, a second seat coil provided at the other end of the coil spring, and an expandable portion between the first seat coil and the second seat coil. The expandable portion includes a first portion having a first pitch, a second portion having a second pitch, and a third portion positioned between the first and second portions and having a third pitch smaller than the first and second pitches.

[0008] Furthermore, according to another aspect of the present invention, a coil spring constituting the above-described aerosol valve is provided.

[0009] Furthermore, according to yet another aspect of the present invention, an aerosol product equipped with the above-described aerosol valve is provided.

[0010] Furthermore, according to yet another aspect of the present invention, a method for assembling the aerosol valve described above is provided. [Effects of the Invention]

[0011] According to each aspect of the present invention, the pitch of the third portion, which is the middle part of the expandable portion of the coil spring, is smaller than the pitch of the other parts of the expandable portion (the first and second portions). This makes it difficult for other coil springs to get caught in the first and second portions of one coil spring. This makes it difficult for multiple coil springs to get tangled. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a cross-sectional view of an aerosol product. [Figure 2] Figures 2(A) and 2(B) are enlarged cross-sectional views of parts of the housing, stem, stem rubber, and mounting cup. [Figure 3] Figure 3 is a side view of a coil spring. [Figure 4] Figure 4 is a schematic diagram of two intertwined coil springs. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described below with reference to the attached drawings. Figure 1 is a cross-sectional view of an aerosol product.

[0014] As shown in Figure 1, the aerosol product 2 has a container 4. The container 4 is, for example, a bottomed cylindrical body with an open top and a bottom 4a at the lower end, and is made of a metal such as aluminum or an alloy such as tinplate. However, the shape and material of the container 4 are not limited to these.

[0015] The container 4 contains, for example, a liquid material to be sprayed 1 and a gaseous propellant 3. The material to be sprayed 1 is sealed in the container 4 under pressurization by the propellant 3. For this reason, it is preferable that the container 4 be made of a material that has a certain degree of pressure resistance.

[0016] Various substances can be selected as the target object 1, depending on the type of aerosol product 2. For example, if the aerosol product is an insecticide, the target object 1 may be a liquid containing the active ingredient of the insecticide with various additives such as solvents and surfactants added. However, the target object 1 is not limited to this.

[0017] The propellant 3 that pressurizes the ejecta 1 is, for example, a liquefied gas and a compressed gas. Examples of the liquefied gas include hydrocarbons (liquefied petroleum gas), dimethyl ether, and fluorinated hydrocarbons. When a liquefied gas is used as the propellant 3, a part of the liquefied gas may vaporize, and the propellant 3 may become a mixture of gas and liquid. Examples of the compressed gas include carbon dioxide, nitrogen, and nitrous oxide. However, the propellant 3 is not limited to these.

[0018] As shown in FIG. 1, an aerosol valve 6 is provided at an end of the container 4 opposite to the bottom 4a. The aerosol valve 6 includes a housing 8. The housing 8 has a first opening 8a formed at one end on the upper end side of the container 4, a second opening 8b formed at the other end on the lower end side of the container 4, and a space 10 connecting the first opening 8a and the second opening 8b.

[0019] A coil spring 12 is accommodated inside the space 10 of the housing 8. The detailed configuration of the coil spring 12 will be described later.

[0020] The aerosol valve 6 includes a stem 14. A flow path 16 is provided inside the stem 14. The stem 14 is provided with an opening 14a penetrating through the flow path 16 and the surface of the stem 14 (see FIGS. 2(A) and 2(B)). A coil spring 12 is attached to one end side of the stem 14. A part including one end of the stem 14 is accommodated in the space 10 inside the housing 8.

[0021] A stem rubber (stem gasket) 18 is provided between the first opening 8a side of the housing 8 and the stem 14 so as to cover the opening 14a. The stem rubber 18 is made of a material having sealing properties and capable of elastic deformation. For example, the stem rubber 18 is made of rubber. However, the material of the stem rubber 18 is not limited to this.

[0022] The aerosol valve 6 includes a mounting cup 20. The mounting cup 20 is formed of an annular member having an opening 20a at its central portion. The stem 14 is inserted into the opening 20a of the mounting cup 20.

[0023] The mounting cup 20 is made of the same material as the container 4. Specifically, for example, the mounting cup 20 is made of a metal such as aluminum or an alloy such as tinplate. However, the material of the mounting cup 20 is not limited to these.

[0024] The mounting cup 20 has an annular gasket (mounting gasket) 22. By fixing the mounting cup 20 to the container 4 via the gasket 22, a sealed space is formed inside the container 4. The gasket 22 is made of, for example, rubber. However, the material of the gasket 22 is not limited to this.

[0025] The above-described housing 8, coil spring 12, stem 14, stem rubber 18, and mounting cup 20 constitute the aerosol valve 6.

[0026] An actuator 24 is connected to the other end of the stem 14 (the end opposite to the end where the coil spring 12 is attached). The actuator 24 has a flow path formed inside. One end of the flow path constitutes the injection port 26, and the other end is connected to the flow path 16 of the stem 14.

[0027] The aerosol product 2 has a tube 28 connected to the housing 8. Specifically, one end side of the tube 28 is connected to the second opening 8b side of the housing 8. The other end side of the tube 28 is immersed in the ejectable 1.

[0028] Figures 2(A) and 2(B) are enlarged cross-sectional views of parts of the housing 8, stem 14 and stem rubber 18 and mounting cup 20. Figure 2(A) shows the state in which the injection of the target material 1 has stopped, and Figure 2(B) shows the state in which the injection of the target material 1 has started.

[0029] As shown in Figure 2(A), when the injection of the material to be injected 1 is stopped, the opening 14a of the stem 14 and the space 10 of the housing 8 are blocked by the stem rubber 18.

[0030] When the upper part of the actuator 24 is pressed by the operator, the stem 14 descends along with the actuator 24. This causes the stem 14 to push the stem rubber 18 downwards (in the direction of the arrow in Figure 2(B), from the top of the container 4 toward the bottom 4a). This deforms the stem rubber 18, exposing the opening 14a of the stem 14.

[0031] As the opening 14a of the stem 14 is exposed, the internal space of the container 4 is connected to the outside of the aerosol product 2 via the tube 28, the space 10 of the housing 8, the flow path 16 of the stem 14, and the nozzle 26 of the actuator 24. This causes a rapid decrease in pressure inside the container 4, and the substance to be sprayed 11 is ejected to the outside in a mist or foam form along with the propellant 3.

[0032] Furthermore, when the stem 14 descends, the coil spring 12 biases the stem 14 upward. In other words, the stem 14 is biased by the coil spring 12 in a direction that does not deform the stem rubber 18. As a result, when the operator stops pushing the upper part of the actuator 24, the stem 14 returns to a position that does not deform the stem rubber 18, and the injection of the material to be injected 1 stops.

[0033] In this way, when the operator manipulates the actuator 24, the actuator 24 moves, and along with it, the stem 14 moves between a first position in which the stem rubber 18 is deformed and a second position in which the stem rubber 18 is not deformed. This controls the connection and disconnection between the space 10 inside the housing 8 and the flow path 16 inside the stem 14.

[0034] In other words, the start and stop of the injection of the material to be injected 1 is controlled by the stem 14 moving between a first position in which the stem rubber 18 is deformed and a second position in which the stem rubber 18 is not deformed. However, the actuator 24 may be operated by a machine rather than by an operator.

[0035] The assembly method for the aerosol valve 6 described above will now be explained. In this embodiment, the aerosol valve is assembled by first attaching the coil spring 12 to one end of the stem 14 and then attaching the stem rubber 18 to the stem 14. Next, the stem 14 with the coil spring 12 and stem rubber 18 attached is inserted into the opening 20a of the mounting cup 20.

[0036] Then, the housing 8 is attached to the coil spring 12 and a portion of the stem 14, including the part of the stem 14 to which the coil spring 12 is attached, so that the space 10 of the housing 8 accommodates the coil spring 12. Through these steps, the aerosol valve 6 is assembled.

[0037] Next, the coil spring 12 will be described in detail. Figure 3 is a side view of the coil spring 12. As shown in Figure 3, the coil spring 12 consists of a winding formed by spirally winding a wire 30 made of a metal such as stainless steel. However, the material of the coil spring 12 is not limited to this.

[0038] The number of turns in the expandable portion 36 of the coil spring 12 and the thickness of the wire 30 are determined by the product specifications. Generally, aerosol valves require a short operating distance, which is the distance the push button (actuator) is pressed, and must be designed to achieve the required upward force with a short operating distance. In addition, in order to ensure the operating distance, the length of the coil spring (length in the expansion / contraction direction) when the coil spring is fully compressed (fully closed) must be designed to be less than or equal to a predetermined value. For this reason, the number of turns (pitch) and the diameter of the wire 30 are designed so that the length of the coil spring is less than or equal to a predetermined value. In this embodiment, the number of turns of the coil spring 12 of the aerosol valve 6 is set to 5.5 or more and 6 or less (5.5 turns means 5 and a half turns), and the diameter (wire diameter) is set to 0.5 mm or more and 0.55 mm or less.

[0039] As shown in Figure 3, the coil spring 12 has a first seat coil 32 provided at one end of the coil spring 12, a second seat coil 34 provided at the other end of the coil spring 12, and an expandable portion 36 between the first seat coil 32 and the second seat coil 34.

[0040] The first turnout 32 and the second turnout 34 are portions where the wire 30 is tightly packed and does not expand or contract. The number of turns of the first turnout 32 is, for example, 3 / 4 or more and 1 or less. The number of turns of the second turnout 34 is, for example, 3 / 4 or more and 1 or less. However, the number of turns of the first turnout 32 and the second turnout 34 are not limited to these. Also, the number of turns of the first turnout 32 and the second turnout 34 may be the same or different.

[0041] The expandable portion 36 has a first portion 38, a second portion 40, and a third portion 42 positioned between the first portion 38 and the second portion 40. The pitch of the third portion 42 (third pitch) is set to be smaller than both the pitch of the first portion 38 (first pitch) and the pitch of the second portion 40 (second pitch). By making the third pitch smaller than the first and second pitches, the space for other coil springs 12 to enter is reduced, thereby reducing the likelihood of the coil springs 12 becoming entangled. In other words, by providing a portion in the middle of the expandable portion 36 with a smaller pitch than the other portions, the space for other coil springs 12 to enter is reduced, thereby reducing the likelihood of the coil springs 12 becoming entangled.

[0042] The first pitch and second pitch of the coil spring 12 are set to be greater than the first winding length, which is the length of the first winding 32 in the expansion / contraction direction 44 (see Figure 3, the axis direction of the central axis of the coil spring 12), and the second winding length, which is the length of the second winding 34 in the expansion / contraction direction 44, respectively. Specifically, for example, the length of the first winding is set to be between 0.5 mm and 1.15 mm, the length of the second winding is set to be between 0.5 mm and 1.15 mm, the first pitch is set to be between 1.2 mm and 2.05 mm, and the second pitch is set to be between 1.2 mm and 1.95 mm.

[0043] By making the first pitch and second pitch of the coil spring 12 larger than the first and second winding lengths, respectively, a certain operating distance of the coil spring 12 can be secured. However, the lengths of the first and second windings, the magnitude of the first pitch, and the magnitude of the second pitch are not limited to these. The lengths of the first and second windings may be the same or different. Similarly, the magnitudes of the first and second pitches may be the same or different.

[0044] Preferably, the length of the expansion / contraction direction 44 of the first part 38 and the length of the expansion / contraction direction 44 of the second part 40 are set to a value such that no more than two first and second seat windings 32 and 34 can fit inside each other. Specifically, for example, the length of the expansion / contraction direction 44 of the first part 38 and the length of the expansion / contraction direction 44 of the second part 40 are set to a value greater than twice the length of the first seat winding, twice the length of the second seat winding, and the sum of the lengths of the first and second seat windings.

[0045] By setting the length of the expansion / contraction direction 44 of the first part 38 and the length of the expansion / contraction direction 44 of the second part 40 to values ​​such that no more than two first seat coils 32 and two second seat coils 34 can fit inside, it is possible to ensure a certain operating distance for the coil spring 12 while preventing more than two other coil springs 12 from fitting inside each of the first part 38 and the second part 40.

[0046] However, the length of the expansion / contraction direction 44 of the first part 38 and the length of the expansion / contraction direction 44 of the second part 40 are not limited to these. The length of the expansion / contraction direction 44 of the first part 38 and the length of the expansion / contraction direction 44 of the second part 40 may be the same or different.

[0047] Figure 4 is a schematic diagram of two intertwined coil springs 12a and 12b. In this embodiment, the coil spring 12 has a third portion 42 as described above, which makes it difficult for two or more coil springs 12 to become entangled in the first portion 38 and the second portion 40, respectively.

[0048] Specifically, the first seat winding 32b (or second seat winding 34b) of the second coil spring 12b fits into the second portion 40a of the first coil spring 12a. Also, the second seat winding 34a (or first seat winding 32a) of the first coil spring 12a fits into the first portion 38b of the second coil spring 12b. As a result, there is no longer any space in the second portion 40a of the first coil spring 12a and the first portion 38b of the second coil spring 12b for the third coil spring 12 to fit.

[0049] If one coil spring 12 is entangled in the first portion 38 or the second portion 40 of the coil spring 12, the vibrations applied when the coil spring 12 moves along the feeder may untangle the coil spring 12. However, if two or more coil springs 12 are entangled in the first portion 38 or the second portion 40, the vibrations applied when the coil spring 12 moves along the feeder will not untangle the coil spring 12, and even manual operation by the operator will not be able to untangle the coil springs 12.

[0050] Coil springs 12 that become entangled even by manual operation by the operator cannot be used in aerosol valves and are discarded. Therefore, preventing multiple coil springs 12 from becoming entangled is important for reducing production costs.

[0051] The third pitch is preferably 0.7 mm or more and 1.0 mm or less. As described above, the length of the coil spring 12 in the expansion and contraction direction is determined by the specifications of the aerosol valve. If the third pitch is less than 0.7 mm, the first and second pitches must be increased by that amount in order to make the length of the coil spring 12 in the expansion and contraction direction 44 a predetermined value. If the first and second pitches become too large, the force required to compress the coil spring 12 becomes too large. As a result, if the force to press the push button (actuator) is insufficient, it becomes impossible to use up the sprayed material 1 contained in the aerosol product 2. Therefore, the third pitch is preferably 0.7 mm or more.

[0052] On the other hand, if the third pitch is larger than 1.0 mm, the first and second seat windings 32 and 34 of the other coil springs 12 tend to get caught in the third pitch. For this reason, it is preferable that the third pitch be 1.0 mm or less.

[0053] Furthermore, the number of turns in the first section 38 is preferably 1 or more and 2 or less, the number of turns in the second section 40 is preferably 1.5 or more and 2 or less, and the number of turns in the third section 42 is preferably 1 or more and 2 or less. However, the number of turns in the first section 38, the second section 40, and the third section 42 are not limited to these and are set appropriately within the range of the number of turns of the expandable section 36 described above. The number of turns in the first section 38, the second section 40, and the third section may be different or the same.

[0054] When the length 44 in the expansion and contraction direction of the coil spring 12 is set to a predetermined value, increasing the number of turns reduces the pitch, leaving less room for other coil springs to intertwine, thus making them less prone to entanglement. On the other hand, as mentioned above, the number of turns of the coil spring is determined within the above range by the specifications of the aerosol valve. The coil spring 12 according to this embodiment achieves the effect of making it difficult for multiple coil springs 12 to intertwine while keeping the number of turns within the range of 5 1 / 2 to 6.

[0055] The coil spring 12 of this embodiment described above was tested to verify its resistance to entanglement with multiple other coil springs 12. 500 coil springs 12 according to this embodiment were manufactured and packaged in boxes. The boxes containing the coil springs 12 were then moved to a predetermined location, and the coil springs 12 were removed and visually inspected to determine whether or not entanglement had occurred. As a result, in the coil springs 12 according to this embodiment, there were absolutely no instances of two or more other coil springs 12 being entangled with the first part 38 and second part 40 of any given coil spring 12.

[0056] For comparison, the resistance of multiple coil springs to entanglement was similarly verified for conventionally shaped coil springs. The wire diameter and length in the expansion / contraction direction of the coil springs were the same as those of the coil springs in this embodiment described above. In addition, the pitch of the expansion / contraction portion of the winding was made equal throughout the entire expansion / contraction direction. As a result, many coil springs were found in which four or more coil springs were entangled in the expansion / contraction portion.

[0057] As described above, the present invention provides an aerosol valve using a coil spring having a configuration that prevents multiple coil springs from becoming entangled, a coil spring having a configuration that prevents multiple coil springs from becoming entangled, and an aerosol sprayer equipped with an aerosol valve using a coil spring having a configuration that prevents multiple coil springs from becoming entangled.

[0058] Furthermore, the coil spring according to this embodiment can also be applied to coil springs used in products other than aerosol valves. For example, the coil spring according to this embodiment can also be applied to pumps used in sprayers that contain a liquid as the substance to be sprayed and spray this liquid to the outside in a mist.

[0059] Furthermore, the structures, methods, etc., of the embodiments and modifications described above may be modified and implemented without departing from the scope of the present invention. [Explanation of symbols]

[0060] 1: Projected object 3: Propellant 2: Aerosol products 4: Container 4a: Bottom 6: Aerosol valve 8: Housing 8a: 1st opening 8b: 2nd opening 10: Space 12: Coil spring 14: Stem 14a: Opening 16: Flow channel 18: Stem rubber 20: Mounting Cup 20a: opening 22: Ceiling 24: Actuator 26: Injection port 28: Tube 30:Wire rod 32: Volume 1 32a: Volume 1 32b: Volume 1 34: Volume 2 34a: Volume 2 34b: Volume 2 36: Telescopic part 36a: Telescopic part 36b: Telescopic part 38: 1st part 38a: 1st part 38b :1st part 40:Second part 40a:Second part 40b:Second part 42: 3rd part 42a: 3rd part 42b: 3rd part 44:Stretching direction

Claims

1. A housing having space inside, A coil spring housed in the aforementioned space, A stem, with one end supported by the coil spring and having a flow path for the material to be injected formed inside, A stem rubber is provided to block the aforementioned space and the aforementioned flow path, The mounting cup comprises a part of the housing and an opening into which a part of the stem is inserted, An aerosol valve in which the connection and disconnection between the space and the flow path are controlled by the stem moving between a first position in which the stem rubber is not deformed and a second position in which the stem rubber is deformed, The coil spring comprises a first seat coil provided at one end of the coil spring, A second seat coil is provided at the other end of the aforementioned coil spring, It has the first seat winding and the second seat winding, and an expandable portion between them, The aforementioned expandable portion comprises a first portion having a first pitch, A second part having a second pitch, An aerosol valve characterized by comprising a third portion disposed between the first portion and the second portion, and having a third pitch smaller than the first pitch and the second pitch.

2. An aerosol valve according to claim 1, An aerosol valve characterized in that the first pitch and the second pitch are greater than the first winding length, which is the length of the first winding in the axial direction of the coil spring, and the second winding length, which is the length of the second winding in the axial direction of the coil spring.

3. An aerosol valve according to claim 1, An aerosol valve characterized in that the length of the coil spring in the central axis direction of the first portion and the length of the coil spring in the central axis direction of the second portion are smaller than any of the following values: twice the length of the first winding (the length of the coil spring in the central axis direction of the first winding), twice the length of the second winding (the length of the coil spring in the central axis direction of the second winding), and the sum of the first winding length and the second winding length.

4. An aerosol valve according to any one of claims 1 to 3, The wire diameter of the coil spring is 0.5 mm or more and 0.55 mm or less. An aerosol valve characterized in that the third pitch is 0.7 mm or more and 1.0 mm or less.

5. An aerosol valve according to any one of claims 1 to 3, The first pitch is 1.2 mm or more and 2.05 mm or less. An aerosol valve characterized in that the second pitch is 1.1 mm or more and 1.95 mm or less.

6. An aerosol valve according to any one of claims 1 to 3, An aerosol valve characterized in that the number of turns in the expandable portion is 6 or less, and the number of turns in the third portion is 0.75 or more and 1 or less.

7. A coil spring used in an aerosol valve, The coil spring comprises a first seat coil provided at one end of the coil spring, A second seat coil is provided at the other end of the aforementioned coil spring, It has the first seat winding and the second seat winding, and an expandable portion between them, The aforementioned expandable portion comprises a first portion having a first pitch, A second part having a second pitch, A coil spring characterized by comprising a third portion disposed between the first portion and the second portion, and having a third pitch smaller than the first pitch and the second pitch.

8. A coil spring according to claim 7, A coil spring characterized in that the first pitch and the second pitch are greater than the first winding length, which is the length of the first winding in the axial direction of the coil spring, and the second winding length, which is the length of the second winding in the axial direction of the coil spring.

9. A coil spring according to claim 7, A coil spring characterized in that the length of the first portion of the coil spring in the axial direction and the length of the second portion of the coil spring in the axial direction are smaller than any of the following values: twice the length of the first winding (the length of the first winding in the axial direction of the coil spring), twice the length of the second winding (the length of the second winding in the axial direction of the coil spring), and the sum of the first winding length and the second winding length.

10. A coil spring according to any one of claims 7 to 9, The wire diameter of the coil spring is 0.5 mm or more and 0.55 mm or less. A coil spring characterized in that the third pitch is 0.7 mm or more and 1.0 mm or less.

11. A coil spring according to any one of claims 7 to 9, The first pitch is 1.2 mm or more and 2.05 mm or less. A coil spring characterized in that the second pitch is 1.1 mm or more and 1.95 mm or less.

12. A coil spring according to any one of claims 7 to 9, A coil spring characterized in that the number of turns in the expandable portion is 6 or less, and the number of turns in the third portion is 0.75 or more and 1 or less.

13. an aerosol valve according to any one of claims 1 to 3, An actuator having an injection port attached to the other end of the stem and connected to the flow path, A tube connected to the housing, A container that houses a part of the aerosol valve and the tube inside, An aerosol product comprising the substance to be sprayed, which is sealed inside the container.

14. A method for assembling an aerosol valve according to any one of claims 1 to 3, The steps include attaching the coil spring to the stem and attaching the stem rubber to the stem, The process involves inserting the stem, with the coil spring and the stem rubber attached, into the opening of the mounting cup, The process involves mounting the housing onto the coil spring and the stem, and housing the coil spring and a portion of the stem in the space of the housing. A method for assembling an aerosol valve, characterized by including [a specific component].

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