TWI688529B - Spray member for trigger-type aerosol, and aerosol product - Google Patents

Abstract

Provided is a trigger-type aerosol spraying member that can prevent a drug solution from adhering to a user's hand when an operation such as a trigger operation lever is not sufficiently tightened. Equipped with: a nozzle (13) with an injection hole (13b) formed on the end surface (13a), and a nozzle (13) arranged behind the end surface (13a) of the nozzle (13) and controlled by the user Trigger operating lever (14) for spraying the contents of the aerosol container (20), liquid leakage prevention means for preventing liquid leakage from the nozzle (13) toward the trigger operating lever (14), and the nozzle (13) The inserted sleeve (15), liquid leakage prevention means, is a liquid retention portion (16) formed between the nozzle (13) and the sleeve (15).

Description

Spare parts for aerosols and aerosol products

The present invention relates to a trigger type aerosol spray member for spraying the contents of an aerosol container, and an aerosol product having the spray member.

Generally, an aerosol product is provided with: an injection member including an actuator and a nozzle, and an aerosol container, and the actuator is pressed to cause the valve of the aerosol container to be opened to contain the medicine The contents of the aerosol container of liquid and propellant (hereinafter, simply referred to as "contents") are ejected from the nozzle. This aerosol product is widely used as a product for distributing a chemical solution containing an effective ingredient such as an insecticidal ingredient, an insecticidal ingredient, and a deodorizing ingredient by a simple operation. Among them, aerosol products with a trigger operating lever that depresses the actuator and a trigger model that forms the actuator into a trigger model are often used in the application of liquid medicine because of easy operation and easy aiming in the spray direction The purpose of directing at pests, etc.

For example, Patent Document 1 discloses a trigger type aerosol product in which an actuator is formed into a trigger type. In the aerosol product of Patent Document 1, when the actuator is tilted by the operation of the trigger operation lever, the valve of the aerosol container will be opened, and the contents of the aerosol container are provided from the actuator The nozzle is sprayed. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Unexamined Patent Publication No. 2010-163182

[Problems to be solved by the present invention]

The reverse side of the trigger operation lever can be easily operated by a weak force, and the movable width is wider than that of a button type or the like which directly operates the actuator. Therefore, for example, if the trigger operation lever is not held tightly at the middle position of the movable range until the last, or if it stays at the middle position for a long time without operating at a sufficient speed, there is a possibility that the operation cannot be properly performed. Here, the present inventors observed in detail the behavior of the medical liquid sprayed from the aerosol product when such an operation is performed. As a result, it was confirmed that the chemical liquid would not be sprayed quickly and forcefully, but would only be scattered in the proximity of the nozzle, or the liquid leaked directly downward from the nozzle. It was further found that if liquid leakage from the nozzle occurs during the operation of the aerosol product, there is a problem that the chemical liquid may adhere to the finger of the user who operates the trigger lever.

The problem of liquid leakage from the nozzle due to the operation of the trigger operating lever, whereby the chemical liquid adheres to the finger has been disclosed in Patent Document 1, etc., but it is not affected by the conventional aerosol products of the trigger type Pay attention to it, and there is no appropriate countermeasure is the status quo.

The present invention has been made in view of the above problems, and its object is to provide a trigger type aerosol spray member and an aerosol product having the spray member, even if the trigger operation lever is not sufficiently tightened In this case, the liquid medicine can still be prevented from adhering to the user's finger.

[Means to solve the problem]

In order to solve the above-mentioned problems, the characteristic structure of the trigger type aerosol spray member of the present invention includes: a nozzle having an injection hole formed in an end face; and a nozzle disposed behind the end face of the nozzle and operated by a user On the other hand, a trigger operating lever for ejecting the contents of the aerosol container from the nozzle, and a liquid leakage prevention means for preventing liquid leakage from the nozzle toward the trigger operating lever side.

According to the trigger type aerosol spray member of this configuration, since the liquid leakage prevention means for preventing the liquid leakage from the nozzle toward the trigger operation lever side is provided, the operation of the trigger operation lever is not sufficiently tightened, etc. The injection hole allows the contents of the aerosol container to leak out, or the liquid is not quickly and forcefully sprayed from the nozzle, which can prevent the leaked liquid and the liquid not sprayed far away from being triggered The rod is dirty. Therefore, when an operation such as a trigger operation lever is not sufficiently tightened, it is possible to prevent the drug solution from adhering to the finger of a user who operates the trigger operation lever.

In the trigger type aerosol spraying member of the present invention, it is preferable to include a sleeve in which the nozzle is inserted, and the liquid leakage prevention means is preferably a liquid retention portion formed between the nozzle and the sleeve.

According to the trigger type aerosol spray member of this configuration, the medicinal solution oozing from the injection hole can be held in the liquid retention portion, so that the oozing chemical liquid can be prevented from dripping from the nozzle, and the trigger operating lever can be prevented from being soiled . Therefore, when an operation such as a trigger operation lever is not sufficiently tightened, it is possible to prevent the drug solution from adhering to the finger of a user who operates the trigger operation lever.

In the triggering aerosol spray member of the present invention, the nozzle is a tapered surface portion having a diameter reduced toward a spray direction of the content, and the liquid retention portion is a tapered surface surface formed in the tapered surface portion and the The groove between the inner peripheral surfaces of the sleeve is preferred.

According to the trigger type aerosol spraying member of the present configuration, since the chemical solution that has penetrated into the groove is expanded toward the entire groove by capillary phenomenon and stays due to surface tension, a sufficient amount of chemical liquid can be held. Therefore, it is possible to prevent the chemical liquid that has oozed out from the injection hole from dripping from the nozzle.

In the trigger type aerosol spray member, the liquid retention portion is preferably a narrow gap portion formed between the outer peripheral surface of the nozzle and the inner peripheral surface of the sleeve.

According to the trigger type aerosol spraying member of this configuration, since the chemical solution that has penetrated into the gap portion expands and stays in the entire gap portion by the capillary phenomenon, a sufficient amount of the chemical solution can be held. Therefore, it is possible to prevent the chemical liquid that has oozed out from the injection hole from dripping from the nozzle.

In the trigger type aerosol spray member, the distance from the outer peripheral surface of the nozzle to the inner peripheral surface of the sleeve is preferably 0.01 to 1.0 mm.

According to the trigger type aerosol spraying member of this configuration, by setting the distance from the outer peripheral surface of the nozzle to the inner peripheral surface of the sleeve within a suitable numerical range, the liquid medicine can be easily subjected to surface tension or The capillary phenomenon diffuses gradually, and a fine gap portion having a sufficient volume can be formed.

In the trigger type aerosol spraying member of the present invention, the nozzle has the end face disposed at a position receding further than the end of the sleeve, and the liquid retention portion extends from the end of the sleeve The inner peripheral surface of the sleeve between the end surfaces of the nozzle is preferable.

According to the aerosol spray member of the trigger type according to this configuration, the chemical liquid oozing from the spray hole can be held on the inner circumferential surface of the sleeve by its surface tension or capillary phenomenon. Therefore, it is possible to prevent the chemical liquid that has oozed out from the injection hole from dripping from the nozzle.

In the trigger type aerosol spraying member of the present invention, the liquid leakage prevention means is preferably a liquid receiving portion provided in front of and below the end face of the nozzle.

When the trigger operation lever is not fully tightened, for example, if the aerosol product is directed diagonally upward, a part of the chemical liquid that falls near the end face of the nozzle without rapid and powerful spraying is operated with the trigger It may be scattered near the pole. According to the trigger type aerosol spraying member of the present configuration, the particles of the chemical liquid falling only in the vicinity of the end face of the nozzle are not ejected from the spray hole quickly and vigorously, but can be contained in the liquid receiving portion Was blocked. Therefore, even if the trigger operation lever is not sufficiently tightened while the aerosol product is directed obliquely upward, the particles of the chemical solution will not be scattered near the trigger operation lever, which can prevent the adhesion of the chemical solution The finger of the user operating the trigger lever.

In the trigger type aerosol spraying member of the present invention, it is preferable that the liquid receiving portion has an inclined surface that slopes downward and forward from the nozzle.

According to the trigger type aerosol spray member of this configuration, even if the aerosol product is operated obliquely upward, the medicine liquid blocked by the liquid receiving portion is prevented from flowing backward by the inclined surface, so the medicine can be prevented The liquid adheres to the finger of the user who is to be operated by the trigger lever that is arranged behind the end face of the nozzle.

In the trigger type aerosol spray member, the inclined surface preferably has an acutely inclined surface portion and a gently inclined surface portion extending forward from the acutely inclined surface portion.

According to the trigger type aerosol spraying member of this configuration, the blocked liquid can be reliably prevented from flowing backward by the steep slope, and the relatively large amount of liquid can be held in the gentle slope.

In the trigger type aerosol spray member, the liquid leakage prevention means further includes a side wall portion that extends upward from the liquid receiving portion and covers the side of the end surface of the nozzle.

According to the trigger type aerosol spraying member of this configuration, among the particles of the chemical liquid sprayed by insufficient spraying force, the particles scattered from the spray hole toward the inclined side adhere to the side wall portion before falling , It can be guided downward along the side wall portion and blocked by the liquid receiving portion.

In the trigger type aerosol spraying member of the present invention, the liquid leakage prevention means is that when the user operates the trigger operating lever, the action of the trigger operating lever is interlocked, and there is no need to posture the end face of the nozzle It is preferable to change the link mechanism that can move the nozzle in parallel in the up-down direction.

When the trigger operating lever is operated, for example, when the posture of the end surface of the nozzle is changed to face downward in conjunction with the rotation of the trigger operating lever, the liquid medicine adhering to the end surface of the nozzle is likely to drip downward. For example, in the aerosol product of Patent Document 1, since the actuator itself is formed as a trigger type, the actuator tilts when the trigger operation lever is operated, and the end surface of the nozzle provided on the actuator also becomes inclined downward. Liquid leakage may occur. According to the trigger type aerosol spray member of this configuration, when the trigger operating lever is buckled, the posture change of the end face can be suppressed by the link mechanism, so that the medicine liquid adhering to the end face of the nozzle can be prevented from dripping downward. It can prevent the trigger operating lever from being soiled.

In order to solve the above-mentioned problems, the characteristic structure of the aerosol product of the present invention is an aerosol spray member having the above-mentioned trigger type.

According to the aerosol product of this configuration, since the aerosol spray member is provided with liquid leakage prevention means for preventing liquid leakage from the nozzle toward the trigger operating lever side, when the liquid medicine is not sufficiently activated by the trigger operating lever When the operation such as buckling oozes out of the injection hole, or the chemical liquid is not quickly and forcefully jetted from the nozzle, it is possible to prevent the oozing chemical liquid and the chemical liquid not jetted far away from contaminating the trigger operating lever. Therefore, when an operation such as a trigger operation lever is not sufficiently tightened, it is possible to prevent the drug solution from adhering to the finger of a user who operates the trigger operation lever.

Hereinafter, the present invention will be described with reference to FIGS. 1 to 7. However, the present invention is not limited to the embodiments described below and the configuration of the drawings. In the following examples, the spray direction of the aerosol product is set to "front", and the opposite direction to "rear".

[Aerosol spraying member/aerosol product of the trigger type] 　　 The aerosol spraying member of the trigger type of the present invention (hereinafter, only referred to as a "spraying member") can be installed in an aerosol container , Thereby constituting the aerosol product of the present invention. The injection member is provided with a nozzle having an injection hole formed on an end surface, a trigger operation lever arranged behind the end surface of the nozzle and operated by a user to eject the contents of the aerosol container from the nozzle, and a prevention Means for preventing liquid leakage from the nozzle toward the trigger lever side. Here, "the content leaks from the nozzle toward the trigger lever side" is not only the phenomenon that the contents of the aerosol container drip directly downward from the nozzle, but also includes the inability to obtain sufficient spraying force during the spray to cause aerosol The phenomenon that the contents of the agent container are scattered toward the vicinity of the nozzle.

<First Embodiment> FIG. 1 is a perspective view of an aerosol product 100 having the aerosol spray member 10 of the first embodiment of the present invention. FIG. 2 is a cross-sectional view of the aerosol spray member 10 according to the first embodiment of the present invention. The cross-sectional view in FIG. 2 is a cross-section in a vertical plane including the injection axis of the aerosol injection member 10.

The aerosol product 100 is composed of an aerosol container 20 and an injection member 10 attached to the aerosol container 20 as shown in FIG. 1. The aerosol container 20 includes a valve (not shown) and a stem (not shown) that maintain a closed state when not in operation, and the chemical liquid and the propellant are filled as contents.

As shown in FIG. 2, the injection member 10 in the first embodiment includes a base member 11, an actuator 12, a nozzle 13, and a trigger operating lever 14.

The base member 11 is an attachment portion (not shown) that is engaged with the aerosol container 20 and connects the aerosol container 20 and the spray member 10.

The actuator 12 is a hollow member having a communication path inside, and one end portion thereof is enlarged in diameter to form a sleeve 15 into which the nozzle 13 is inserted. In the end surface 13a of the nozzle 13, an injection hole 13b is formed. The other end of the actuator 12 is connected to the stem of the aerosol container 20. By pressing down the actuator 12, the valve of the aerosol container 20 can be opened. When the valve of the aerosol container 20 is opened, the content of the aerosol container 20 is the communication path from the stem to the actuator 12, and the content is ejected from the injection hole 13b.

Between the sleeve 15 and the nozzle 13, the liquid stagnation portion 16, which is a liquid leakage prevention means of the aerosol spray member 10 of the first embodiment of the present invention, is formed. The liquid retention portion 16 is a chemical solution that has oozed out from the injection hole 13b, and is held between the nozzle 13 and the sleeve 15 by its surface tension.

The trigger operating lever 14 is rotatably attached to the base member 11, and its leading end 14a is located behind the surface included in the end face 13a shown by a dotted line in FIG. 2. The trigger operating lever 14 is rotated by the user's operation to depress the actuator 12.

When the trigger operating lever 14 is not fully pulled down, for example, if the tip 14a is held at a position slightly receding toward the aerosol container 20 side, the depression of the actuator 12 also becomes slight. In a state where the actuator 12 is slightly depressed, the speed at which the contents of the aerosol container 20 flow out of the stem becomes smaller, for example, the medical liquid leaking from the stem will seep out of the injection hole 13b. In the ejection member 10 in the first embodiment, by holding the medical solution that has oozed out from the injection hole 13b in the liquid retention portion 16, the medical solution is prevented from adhering to the user's finger due to the liquid leakage.

[Liquid retention portion] FIG. 3 is a cross-sectional view of the nozzle 13 and the sleeve 15 that can be used in the aerosol spray member of the first embodiment of the present invention. The cross-sectional view of (a) of FIG. 3 is an enlarged view of the AA' part of FIG. 2. The nozzle 13 is a tapered surface portion 13c having a diameter reduced toward the injection direction, and an annular groove portion 16a is formed by the tapered surface surface 13d of the nozzle 13 and the inner peripheral surface 15b of the sleeve 15. The groove portion 16a functions as the liquid retention portion 16. The chemical solution that has penetrated into the groove portion 16a rises in the groove portion 16a by the capillary phenomenon, and not only the lower side of the injection hole 13b, but also extends to the entire circumference of the annular groove portion 16a. Therefore, the liquid medicine oozes out of the ejection hole 13b by insufficient operation of the trigger operating lever 14 and will not drip down the nozzle 13, as shown by the two-point lock line, due to its surface tension, it becomes stayed in the groove 16a.

The depth d of the tapered portion 13c is preferably 0.01 to 2.0 mm, and more preferably 0.05 to 1.0 mm. If the depth d is smaller than 0.01 mm, the volume of the groove portion 16a will be insufficient to hold a sufficient amount of chemical solution. If the depth d exceeds 2.0 mm, the diameter of the end surface 13a is excessively small, and it may be difficult to form the injection hole 13b.

The angle D formed by the tapered surface 13d and the inner peripheral surface 15b is preferably 10 to 80 degrees, and more preferably 20 to 70 degrees. If the angle D is smaller than 10 degrees, the volume of the groove portion 16a is insufficient to hold a sufficient amount of chemical solution. If the angle D exceeds 80 degrees, the rise of the chemical liquid due to surface tension becomes insufficient, and it may become difficult to maintain the chemical liquid throughout the circumference of the annular groove 16a.

In addition, the tapered surface portion 13c is a cross section of the tapered surface 13d shown in FIG. 3(a), and the cross section of the tapered surface 13d is not limited to a straight line, and the cross section of the tapered surface 13d may be curved. Further, the end surface 13a may be formed in a curved shape that expands forward, and the annular groove portion 16a may be formed by the portion of the end surface 13a near the sleeve 15 and the inner peripheral surface 15b of the sleeve 15. In addition, in FIG. 3(a), the nozzle 13 has its end surface 13a and the end portion 15a of the sleeve 15 on the same plane, but as long as the configuration of the ring-shaped end portion 16a is not hindered, the end surface 13a of the nozzle 13 It may be in a state slightly protruding forward than 15a. In this configuration, the amount of protrusion from the end surface 13a of the end surface 15a is preferably 0.05 to 1.0 mm, and more preferably 0.1 to 0.6 mm. When the protrusion amount of the end surface 13a is 0.05 to 1.0 mm, when the chemical solution oozing out from the injection hole 13b flows downward along the end surface 13a, the chemical solution is held so as to flow into the groove portion 16a from the lower end of the end surface 13a. However, in order not to disturb the configuration of the ring-shaped end portion 16a, the amount of protrusion from the end surface 13a of the end surface 15a is necessary to maintain the liquid retention portion 16 and must be smaller than the depth d of the tapered surface portion 13c.

In addition, if the liquid retention portion 16 is a structure that can hold the chemical liquid between the nozzle 13 and the sleeve 15 by surface tension or capillary phenomenon, it is not limited to the structure shown in FIG. The composition is also possible. For example, the liquid retention portion 16 may adopt the configuration shown in (b) to (d) of FIG. 3.

In the configuration shown in FIG. 3(b), the outer diameter of the nozzle 13 is formed to be smaller than the inner diameter of the sleeve 15 by only the width w, and the nozzle 13 and the sleeve 15 are arranged so that their axes are aligned with each other. A narrow gap 16b of width w is formed between the outer peripheral surface 13e of the nozzle 13 and the inner peripheral surface 15b of the sleeve 15. This narrow portion 16b functions as the liquid retention portion 16. The chemical solution that has infiltrated into the narrow portion 16b is gradually diffused toward the entire narrow portion 16b by capillary phenomenon, and it is not only the lower side of the injection hole 13b that it stays in the entire circumference.

The width w is preferably 0.01 to 1.0 mm, and more preferably 0.05 to 0.5 mm. If the width w is smaller than 0.01 mm, the volume of the narrow portion 16b is insufficient to hold a sufficient amount of chemical solution. If the width w exceeds 1.0 mm, the rise of the chemical liquid due to the capillary phenomenon becomes insufficient, and it may become difficult to retain the chemical liquid over the entire circumference of the narrow portion 16b. In FIG. 3(b), although the nozzle 13 has its end surface 13a and the end portion 15a of the sleeve 15 on the same plane, the end surface 13a of the nozzle 13 may protrude slightly forward than the end surface 15a. In this configuration, the amount of protrusion from the end surface 13a of the end surface 15a is preferably 0.05 to 1.0 mm, and more preferably 0.1 to 0.6 mm. When the protrusion amount of the end surface 13a is 0.05 to 1.0 mm, when the chemical solution oozing out from the injection hole 13b flows downward along the end surface 13a, the chemical solution flows from the lower end of the end surface 13a toward the narrow portion 16b and is held.

In the configuration shown in FIG. 3(c), the end surface 13a of the nozzle 13 is arranged to retreat rearward than the end portion 15a of the sleeve 15. With this structure, the inner peripheral surface 15b of the sleeve 15 is exposed from the end portion 15a of the sleeve 15 to the end surface 13a of the nozzle 13. The exposed portion 16c of the inner peripheral surface 15b functions as the liquid retention portion 16. The chemical liquid is oozed out of the ejection hole 13b by insufficient operation of the trigger operating lever 14 and will not drip downward of the nozzle 13, as shown by the two-point lock line, due to its surface tension, it becomes stayed in the liquid retention portion 16.

The receding width SB from the end portion 15a of the sleeve 15 to the end surface 13a of the nozzle 13 is preferably 0.01 to 1.0 mm, and more preferably 0.05 to 0.5 mm. If the retreat width SB is smaller than 0.01 mm, it is impossible to hold a sufficient amount of the chemical solution in the liquid retention portion 16, and it may become difficult to sufficiently prevent liquid leakage. If the retreat width SB exceeds 1 mm, a part of the chemical liquid that is normally ejected and diffused from the ejection hole 13b may be attached to the inner circumferential surface 15b of the sleeve 15.

In the configuration shown in FIG. 3( d ), an annular groove 16 a is formed by the tapered surface 13 d of the nozzle 13 and the inner peripheral surface 15 b of the sleeve 15, and the outer peripheral surface 13 e of the nozzle 13 and the sleeve 15 A narrow gap portion 16b is formed between the inner peripheral surfaces 15b of the, and the exposed portion 16c is exposed from the end portion 15a of the sleeve 15 to the end surface 13a of the nozzle 13. The groove portion 16a, the narrow portion 16b, and the exposed portion 16c are the same as those described in FIGS. 3(a) to (c), and any of them can function as the liquid retention portion 16.

As described above, the aerosol spray member 10 and the aerosol product 100 according to the first embodiment of the present invention can be maintained by the surface tension or capillary phenomenon of the chemical solution oozing out from the spray hole 13b In the liquid retention portion 16, it is possible to prevent the leaked chemical liquid from dripping downward from the nozzle 13, and to prevent the trigger operating lever 14 from being soiled. Therefore, when the operation of the trigger operation lever 14 is not sufficiently tightened, it is possible to prevent the drug solution from adhering to the finger of the user who operates the trigger operation lever 14.

<Second Embodiment> FIG. 4 is a perspective view of an aerosol product 200 having the aerosol spray member 30 of the second embodiment of the present invention. FIG. 5 is a cross-sectional view of the aerosol spray member 30 according to the second embodiment of the present invention. The cross-sectional view in FIG. 5 is a cross-section in a vertical plane including the injection axis of the aerosol injection member 30.

As shown in FIG. 4, the aerosol product 200 is the same as the aerosol product 100 of the first embodiment, and consists of an aerosol container 20 containing the chemical liquid and the propellant as contents, and is mounted on The spray member 30 of the aerosol container 20 is constituted. The aerosol container 20 is provided with a valve (not shown) and a stem (not shown) that maintain a closed state during non-operation, and the chemical liquid and the propellant are filled as contents.

As shown in FIG. 5, the injection member 30 in the second embodiment includes a base member 11, an actuator 12, a nozzle 13, and a trigger operating lever 14.

The base member 11 is an attachment portion (not shown) that is engaged with the aerosol container 20 and connects the aerosol container 20 and the injection member 30. The base member 11 extends forward from the main body portion 11a located above the aerosol container 20, and forms the liquid leakage prevention means of the aerosol spray member 30 of the second embodiment of the present invention, that is, the liquid receiving portion. 17.

The actuator 12 is a hollow member having a communication path inside, and one end portion thereof is enlarged in diameter to form a sleeve 15 into which the nozzle 13 is inserted. In the end surface 13a of the nozzle 13, an injection hole 13b is formed. The other end of the actuator 12 is connected to the stem of the aerosol container 20. By pressing down the actuator 12, the valve of the aerosol container 20 can be opened. When the valve of the aerosol container 20 is in an open state, the contents of the aerosol container 20 flow from the stem to the communication path of the actuator 12 and are ejected from the injection hole 13b.

The trigger operating lever 14 is rotatably attached to the base member 11, and its leading end 14a is located behind the surface included in the end face 13a shown by a dotted line in FIG. 5. The trigger operating lever 14 is rotated by the user's operation to depress the actuator 12.

The trigger operating lever 14 is insufficiently pulled down, for example, if the tip 14a is held at the middle position of the movable range, etc., the depression of the actuator 12 becomes insufficient. In a state where the actuator 12 is not sufficiently depressed, since the valve will not be fully opened, the speed at which the contents of the aerosol container 20 flow out from the stem is insufficient, for example, a part of the medical solution is not fast It jets vigorously and falls near the end surface 13a of the nozzle 13. At this time, for example, if the aerosol product is directed obliquely upward, a part of the chemical solution that is not quickly and forcefully sprayed and falls near the end surface 13a of the nozzle 13 is scattered toward the vicinity of the trigger operating lever 14 and is attached The possibility of the user's finger. In the ejection member 30 in the second embodiment, by blocking the liquid medicine falling near the end surface 13a in the liquid receiving portion 17, the liquid medicine can be prevented from adhering to the user's finger.

[Liquid receiving portion] As shown in FIG. 5, the liquid receiving portion 17 is formed below the end surface 13a of the nozzle 13 and intersects the surface (shown by a dotted line) including the end surface 13a. In the liquid receiving portion 17, the side wall portion 18 is preferably connected. The side wall portion 18 extends upward from both sides of the liquid receiving portion 17 and is formed at a position that covers the end surface 13a from the side. By forming the liquid receiving portion 17 below the end surface 13a, the particles of the chemical liquid that has been ejected from the ejection hole 13b forward by a slight flying distance can be blocked by the liquid receiving portion 17. Moreover, the side wall portion 18 is formed on both sides of the end surface 13a, so that the particles of the chemical liquid jetted by the insufficient jetting force can be scattered from the jetting hole 13b toward the inclined side before being dropped The side wall portion 18 is guided downward along the side wall portion 18 and is blocked by the liquid receiving portion 17.

On the upper surface of the liquid receiving portion 17, it is preferable to form an inclined surface 17a whose front side is inclined downward. The inclined surface 17a preferably has an acute inclined surface portion 17b and a gently inclined surface portion 17c extending from the front end of the acute inclined surface portion 17b. Since the inclined surface 17a is formed on the upper surface of the liquid receiving portion 17, the chemical liquid blocked by the liquid receiving portion 17 is prevented from flowing backward, so that the chemical liquid can be prevented from adhering to the trigger operating lever to be arranged behind the end surface 13a 14 Operate the user's finger. In particular, it is possible to surely prevent the blocked medical fluid from flowing backward by the steep slope 17b, and it is possible to hold a relatively large amount of chemical fluid in the gentle slope 17c for a long time.

As described above, the aerosol spray member 30 and the aerosol product 200 according to the second embodiment of the present invention are a part of the medicinal solution that is not fast even when the trigger operating lever 14 is not fully tightened, etc. It sprays vigorously and falls near the end face of the nozzle. Since the liquid medicine falling near the end face 13a of the nozzle 13 can be blocked by the liquid receiving portion 17, the liquid medicine can be prevented from scattering near the trigger operating lever 14, It is possible to prevent the trigger operating lever 14 from being soiled. Therefore, when the operation of the trigger operation lever 14 is not sufficiently tightened, it is possible to prevent the drug solution from adhering to the finger of the user who operates the trigger operation lever 14.

<Third Embodiment> FIG. 6 is an assembly diagram of an aerosol product 300 having the aerosol spray member 40 of the third embodiment of the present invention. The aerosol product 300 is the same as the aerosol product 100 of the first embodiment, and consists of: an aerosol container 20 containing the chemical liquid and the propellant as contents, and the spray mounted on the aerosol container 20 Structure 40.

The aerosol container 20 includes a container body 21 provided with a valve that maintains a closed state when not in operation, and the chemical solution and the propellant are filled as contents, and the mounting portion 22, and is pushed upward in connection with the valve Forced terrier 23.

The injection member 40 in the third embodiment is composed of a base member 11, an actuator 12, a nozzle 13, and a trigger 41.

The base member 11 is an attachment portion 22 that is engaged with the aerosol container 20 and connects the aerosol container 20 and the spray member 40. When connected to the aerosol container 20, a bearing 19d is formed at a position rearward of the position where the stem 23 is inserted.

The actuator 12 is a curved hollow member having a communication path inside, and one end portion thereof is enlarged in diameter to form a sleeve 15 into which the nozzle 13 is inserted. In the end surface 13a of the nozzle 13, an injection hole 13b is formed. The other end of the actuator 12 is pushed upward by being connected to the stem 23 of the aerosol container 20. On both sides of the curved portion of the actuator 12, a cylindrical shaft 19a is projected sideways.

The trigger member 41 is a member formed long in the front-rear direction, and has a trigger operating lever 14 extending downward from a position 41a at the front end. In the rear of the position 41a where the trigger lever 14 is extended, a bell-shaped bearing 19b having an arc formed on the upper side is formed. The bearing 19b is formed so that the diameter of the arc portion is larger than the diameter of the shaft 19a of the actuator 12, and the actuator 12 is pushed upward by slidingly bearing the shaft 19a along the arc portion Stuck from above. On both sides near the rear end of the trigger member 41, a cylindrical shaft 19c is projected sideways. The trigger member 41 is pivotally pivoted on the bearing 19d formed on the base member 11 by making the shaft 19c rotatably, and when the trigger operating lever 14 is buckled, it is actuated by a lever using the shaft 19c as a fulcrum The device 12 is depressed. The joint formed by the shaft 19a and the bearing 19b and the joint formed by the shaft 19c and the bearing 19d constitute the liquid leakage prevention means of the aerosol spray member 40 according to the third embodiment of the present invention.就是连杆机构19。 The link mechanism 19.

[Link mechanism] When the trigger operating lever 14 is operated, for example, if the posture of the end surface 13a of the nozzle 13 changes in conjunction with the rotation of the trigger operating lever 14 and faces downward, the chemical solution adhering to the end surface 13a of the nozzle 13 is likely to Drop below. In the ejection member 40 in the third embodiment, when the trigger operating lever 14 is buckled, the link mechanism 19 suppresses the change in the posture of the end surface 13a to prevent the medical fluid from adhering to the user's finger due to liquid leakage.

FIG. 7 is an explanatory diagram of the link mechanism 19 of the aerosol spray member 40 according to the third embodiment of the present invention. FIG. 7(a) is a cross-sectional view of the aerosol spray member 40 in a state where the trigger operating lever 14 is not operated, and FIG. 7(b) is in a state where the trigger operating lever 14 is pulled down A cross-sectional view of the spray member 40 for aerosol.

In the state shown in FIG. 7(a), the bearing 19b is pushed up by the shaft 19a by the upward urging force pushed by the actuator 12. As a result, the trigger member 41 assumes a front-up posture, and the shaft 19a is locked to the front end of the arc portion of the bearing 19b. In this state, the injection axis A1 of the injection hole 13b formed in the end surface 13a is parallel to the longitudinal direction A2 of the trigger 41.

When the trigger operating lever 14 is pulled down in the state shown in FIG. 7(a), the trigger member 41 rotates counterclockwise with the shaft 19c as a fulcrum. By this rotation, the posture of the trigger member 41 is changed to the state shown in FIG. 7(b), and the longitudinal direction A2 is more downward than the state shown in FIG. 7(a). At this time, although the bearing 19b presses the shaft 19a down, the shaft 19a is slidably blocked by the arc portion of the shaft 19b, so the arc portion along the bearing 19b is as shown in Figure 7 ( b) Slide up to the rear end of the arc part shown. As a result, the rotation of the trigger member 41 is transmitted by the linear movement of the actuator 12, and the injection axis A1 of the injection hole moves downward in parallel without changing the direction. That is, when the trigger 13 is operated by the trigger operating lever 14, the posture of the end surface 13a does not change from the state shown in FIG. 7(a) to the state shown in FIG. 7(b), and becomes a parallel downward movement .

As described above, the aerosol spray member 40 and the aerosol product 300 of the third embodiment of the present invention can suppress the posture change of the end surface 13a by the link mechanism 19 when the trigger operating lever 14 is pulled down Therefore, it is possible to prevent the chemical liquid adhering to the end surface 13a of the nozzle 13 from dripping downward, and to prevent the trigger operating lever 14 from being soiled.

In addition, the link mechanism 19 is not limited to the structure shown in FIGS. 6 and 7. By transmitting the rotation of the trigger member 41 to the actuator 12 in a linear motion, when the trigger operating lever 14 is operated, When the posture of the end surface 13a moves the nozzle 13 in parallel downward without changing, another configuration may be adopted.

[Other embodiments] 　　 The aerosol spray member of the trigger type of the present invention and the aerosol product having the spray member can prevent the adhesion of the chemical solution when the trigger operation lever is not fully tightened, etc. In terms of the effect of the present invention on the user's finger, the configuration described in the first to third embodiments described above may be changed. For example, the liquid retention portion 16 described in the first embodiment, the liquid receiving portion 17 described in the second embodiment, and the link mechanism 19 described in the third embodiment each have The function of the liquid leakage prevention means from the nozzle toward the trigger operation lever side without compromising the function of each other. Here, in order to have two or more of the liquid retention part 16, the liquid receiving part 17, and the link mechanism 19, the aerosol spray member constituting the trigger type and the aerosol product having the spray member can.

In particular, if the end surface 13a of the nozzle 13 moves rearward than the formation position of the liquid receiving portion 17 with the operation of the trigger operating lever 14, a part of the chemical liquid that falls near the end surface 13a will not be caught by the liquid receiving portion 17 Blocked and there is a possibility of flying. However, the link mechanism 19 not only suppresses the posture change of the end surface 13a of the nozzle 13, but also suppresses the movement of the end surface 13a toward the rear. Therefore, in the trigger type aerosol spray member having both the liquid receiving portion 17 and the link mechanism 19, and the aerosol product having the spray member, it is easy to become the nozzle 13 even if the trigger operating lever 14 is operated The end surface 13a is often located above the liquid receiving portion 17. [Industry availability]

The aerosol spray member and the aerosol product of the trigger type of the present invention can be used for insecticidal, anti-insect, deodorizing and other purposes.

10, 30, 40 ‧‧‧ Spray member for aerosol 11‧‧‧ Base member 12‧‧‧Actuator 13‧‧‧ Nozzle 13a‧‧‧End face 13b‧‧‧Spray hole 13c‧‧‧Cone 13d‧‧‧tapered surface 13e‧‧‧outer peripheral surface 14‧‧‧ trigger operating lever 14a‧‧‧tip 15‧‧‧sleeve 15a‧‧‧end 15b‧‧‧inner peripheral surface 16‧‧‧ liquid retention Part (liquid leakage prevention means) 16a‧‧‧groove part 16b‧‧‧narrow part 17‧‧‧liquid receiving part (liquid leakage prevention means) 17a‧‧‧inclined surface 17b‧‧‧slope face 17c‧‧‧slope Part 18‧‧‧Side wall part 19‧‧‧ Linkage mechanism (liquid leakage prevention means) 20‧‧‧Aerosol container 100, 200, 300‧‧‧Aerosol product

[Figure 1] A perspective view of an aerosol product having an aerosol spray member according to a first embodiment of the present invention.　　 [Figure 2] A cross-sectional view of the aerosol spray member according to the first embodiment of the present invention.　　 [Figure 3] A cross-sectional view of a nozzle and a sleeve that can be used in the aerosol spray member of the first embodiment of the present invention.　　 [Figure 4] A perspective view of an aerosol product having an aerosol spray member according to a second embodiment of the present invention.　　 [figure 5] A cross-sectional view of an aerosol spray member according to a second embodiment of the present invention.　　 [Figure 6] An assembly view of an aerosol product having an aerosol spray member according to a third embodiment of the present invention.　　 [Figure 7] An explanatory diagram of a link mechanism of an aerosol spray member according to a third embodiment of the present invention.

10‧‧‧Aerosol spray member

11‧‧‧Base member

12‧‧‧Actuator

13‧‧‧ nozzle

13a‧‧‧End

13b‧‧‧Jet hole

14‧‧‧ trigger lever

14a‧‧‧apex

15‧‧‧Sleeve

16‧‧‧Liquid retention (liquid leakage prevention means)

20‧‧‧Aerosol container

100‧‧‧Aerosol products

Claims (10)

A trigger-type aerosol spraying member, comprising: a nozzle having an injection hole formed on an end surface thereof; and a content which is arranged behind the end surface of the nozzle and the aerosol container is operated by the user from the nozzle A trigger operating lever for ejecting an object, and a liquid leakage preventing means for preventing liquid leakage from the nozzle toward the trigger operating lever side, the liquid leakage preventing means is a liquid receiving portion provided in front of and below the end surface of the nozzle, The liquid receiving portion has an inclined surface that slopes downward and forward from the nozzle. A trigger type aerosol spray member as claimed in item 1 of the patent scope, which includes a sleeve in which the nozzle is inserted, and the liquid leakage prevention means is a liquid stagnation formed between the nozzle and the sleeve unit. An aerosol spray member for a trigger type as claimed in item 2 of the patent scope, wherein the nozzle is a tapered portion having a diameter reduced toward the spray direction of the content, The liquid retention portion is a groove formed between the tapered surface in the tapered surface portion and the inner peripheral surface of the sleeve. The trigger type aerosol spray member according to claim 2 or 3, wherein the liquid retention portion is a narrow gap portion formed between the outer peripheral surface of the nozzle and the inner peripheral surface of the sleeve. The triggering type aerosol spray member according to claim 2 or 3, wherein the distance from the outer circumferential surface of the nozzle to the inner circumferential surface of the sleeve is 0.01 to 1.0 mm. The trigger type aerosol spray member as claimed in item 2 or 3 of the patent scope, wherein the nozzle has the end face disposed at a position that is more retracted than the end of the sleeve, and the liquid retention portion is The inner circumferential surface of the sleeve from the end of the sleeve to the end surface of the nozzle. The trigger type aerosol spray member according to claim 1 or 2, wherein the inclined surface includes an acutely inclined surface portion and a gently inclined surface portion extending forward from the acutely inclined surface portion. The triggering type aerosol spraying member as claimed in item 1 or 2 of the patent application, wherein the liquid leakage prevention means further includes: extending upward from the liquid receiving portion and laterally extending the end face of the nozzle Covered side wall. For the aerosol spray member of the trigger type according to claim 1 or 2, the liquid leakage prevention means is that when the user operates the trigger operating lever, the trigger operating lever is linked to the action of the trigger operating lever. By changing the posture of the end face of the nozzle, a link mechanism that can move the nozzle in parallel in the vertical direction. An aerosol product having a trigger type aerosol spray member as in any one of patent application items 1 to 9.

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