JP2008024365A - Injection member for aerosol device, and aerosol device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aerosol device capable of injecting aerosol composition not applying any uncomfortable feeling to a user even if the device is abutted and pushed against the diseased part and the like and whichever part of an operating member is pushed. <P>SOLUTION: An aerosol device 10 having an injecting member 16 comprises an installing member 14 fixed to an aerosol container 12 and a resilient operating member 15 fixed to the installing member. The operating member 15 has a cylindrical extremity end 47 covering a nozzle 13 installed at a stem of the aerosol container, a resilient deformed part 48 curved downward and extended while it is being widened radially from the lower end of the extremity end and a flange-like base part 49 extending radially outward from the lower end of the resilient deformed part. The upper end of the extremity end 47 is provided with a recess 50 formed to close an injection hole 34 at the nozzle 13. The installing member 14 fixes the outer periphery of the base part 49. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an injection member for an aerosol device and an aerosol device using the same.

Japanese Utility Model Publication No. 63-23280 Japanese Utility Model Publication No. 3-47055

  The aerosol device includes a pressure-resistant container, an aerosol valve attached to the pressure-resistant container, and an injection member that is attached to the aerosol valve and operates to open and close the aerosol valve. And by performing an injection operation such as depressing the injection member, and opening the aerosol valve to the atmosphere, the aerosol composition (stock solution and propellant) filled in the pressure-resistant container is pushed out by the pressure of the propellant, Be injected.

  This aerosol device is used in various products depending on applications and purposes. And it is also used for many purposes such as anti-inflammatory analgesics, antiperspirants, blood circulation promoters, hair restorers, etc. Thus, when injecting to a human body, since injection to objects other than injection target objects, such as an affected part, is not preferable, a user will carry out injection operation as close to a human body as possible.

  In FIG. 1 of Patent Document 1 and FIG. 4 of Patent Document 2, a cylindrical operation nozzle (top wall, flexible wall) is formed at the lower end and extends in the axial direction of the pressure vessel. An aerosol device is disclosed. Such an aerosol device can be reliably injected to the affected part by bringing the side surface of the nozzle into direct contact with the human body. Further, since the aerosol valve can be opened by bringing the nozzle close to the affected part and pressing the operation part at the lower end of the nozzle away from the tip of the nozzle, the injection operation is easy.

  In Patent Document 1, a tilt type aerosol valve is used as the aerosol valve of the aerosol device, and the operation can be further facilitated.

  However, in any aerosol device, the tip of the nozzle uses a hard synthetic resin such as polyacetal, and when it is brought into contact with the affected part and pressed to open the valve as it is, it becomes a stimulus. An object of the present invention is to provide an aerosol apparatus that does not give discomfort even when pressed against an affected part or the like and can spray an aerosol composition when any part of an operation member is pressed. .

  An injection member according to the present invention includes a mounting member attached to an aerosol container and a resilient operation member fixed to the mounting member, and the operation member is mounted on the stem of the aerosol container or the stem. A cylindrical tip that covers the nozzle, a resiliently deformable portion that extends downward in a radial direction from the lower end of the tip portion, and a flange-like base portion that extends radially outward from the lower end of the resiliently deformable portion; The mounting member fixes the outer periphery of the base.

  Such an injection member is preferably provided with a notch that is normally closed by elasticity at the upper end of the tip. Moreover, it is preferable that the upper part of the front-end | tip part protrudes spherically so that the space sealed between the said stem or nozzle may be formed.

  The aerosol device of the present invention is characterized by comprising an aerosol container composed of a pressure-resistant container and an aerosol valve, and an injection member attached to the aerosol container.

  In such an aerosol device, the aerosol container preferably includes a tilt type aerosol valve. And what has the nozzle attached to the stem of the aerosol container is preferable. Moreover, it is an aerosol apparatus to which a nozzle is attached, and is preferably provided with an external spring that is stronger than the spring of the aerosol valve between the nozzle and the upper end of the aerosol container.

  The spray member for the aerosol device of the present invention comprises a mounting member attached to the aerosol container and an elastic operation member fixed to the mounting member, so that the operation member is used in contact with the human body. Even no discomfort. The operation member includes a stem of the aerosol container, or a cylindrical tip covering a nozzle attached to the stem, and an elastically deforming portion extending in a downward curve while extending radially from the lower end of the tip. And a flange-shaped base portion extending radially outward from the lower end of the elastically deformable portion, and the outer periphery of the base portion is fixed to the mounting member. The hook-shaped elastically deforming portion is elastically deformed, and a force that pushes the stem or nozzle downward from the tip portion or tilts acts to facilitate the injection operation. Moreover, since the stem or the nozzle can be returned to the original position by the elastic force of the elastic deformation portion after the injection operation is completed, the sealing performance when not in use is high.

  When the upper end of the tip is provided with a cut that is normally closed due to elasticity, the tip of the aerosol composition injected through the stem or nozzle can be weakened at the tip. Therefore, relatively easy injection can be performed on the affected area and the like, and is particularly preferable when a nozzle or a stem sprayed in a foam shape, a rough mist shape, or a mist shape is used.

  When the upper part of the tip portion protrudes in a spherical shape so as to form a sealed space between the stem or the nozzle and the injection operation is performed so as to crush this space, after the injection operation, the operation member is It tries to return to its original spherical shape due to its elasticity. As a result, the space is weakly decompressed, and the aerosol composition remaining in the stem or nozzle after the injection operation is introduced into the space. Therefore, it is possible to prevent after-drawing in which the aerosol composition remaining in the nozzle leaks slowly.

  In the aerosol device of the present invention, since the above-described injection member of the present invention is attached to the aerosol container, the injection operation is easy.

  In addition, when the aerosol container is provided with a tilt type aerosol valve, the valve can be opened not only by pushing the operation member straight but also by tilting, and the operation becomes easier. In this case as well, the elastic deformation portion is elastically deformed, and the stem or nozzle can be returned to the upright position after the injection operation is completed. When the nozzle is attached to the stem of the aerosol container, the operation of the operation member that covers the nozzle becomes easy.

  Further, when the aerosol device is provided with an external spring having a stronger elasticity than the aerosol valve spring between the nozzle and the upper end of the aerosol container, the operation member is not used. Even when the stem of the aerosol valve is subjected to a downward pushing force due to the elasticity of the stem, the stem is always at the same height, and there is no possibility of reducing the sealing performance of the aerosol valve. In addition, this spring also improves the adhesion between the tip of the nozzle and the tip of the operation member, can ensure sealing performance, and can prevent after-draw.

  Next, an injection member of the present invention and an aerosol device using the same will be described with reference to the drawings. FIG. 1 is a side sectional view showing an embodiment of an aerosol apparatus provided with an injection member of the present invention, FIG. 2a is a partial side sectional view of the aerosol apparatus of FIG. 1, and FIG. 2b is a partial side view showing a use state thereof. FIG. 3a is a partial side sectional view showing another embodiment of the aerosol device provided with the injection member of the present invention, FIG. 3b is a partial side sectional view showing the use state of FIG. 3a, and FIG. FIG. 5a is a partial side sectional view showing still another embodiment of the aerosol apparatus equipped with the injection member of the present invention, and FIG. 5b is a perspective view showing a use state thereof, FIGS. 5c and 5d are partial side sectional views showing still another embodiment of an aerosol apparatus provided with the injection member of the present invention, and FIG. 6a is provided with the injection member of the present invention. 4 shows yet another embodiment of an aerosol device. Some side sectional view, FIG. 6b, c is its is a partial perspective view.

  The aerosol apparatus 10 shown in FIG. 1 is comprised from the aerosol container 12 provided with the stem 11, and the injection member 16 with which the aerosol container is mounted | worn. A nozzle 13 is attached to the stem 11 of the aerosol container.

  The aerosol container 12 is a conventionally known one, and includes a pressure-resistant container 18 having a curled portion 17 at the upper end and an aerosol valve 19 attached to an opening of the pressure-resistant container.

  As shown in FIG. 2a, the aerosol valve 19 is a conventionally known one generally called a tilt valve, and is held in the center of the mounting cup 21 made of metal and fixed to the opening of the pressure vessel. A cylindrical synthetic resin housing 22, a synthetic resin stem 11 accommodated in the housing 22 and having a stem hole 23, a spring 25 that constantly biases the stem upward, and a stem hole 23. It consists of a stem rubber 26 for closing and a dip tube 24 connected to the lower end of the housing 22. Note that the dip tube 24 is not necessary when the aerosol apparatus is used upside down (inverted specification).

  The stem 11 includes a cylindrical stem main body 27 and an annular flange 28 formed at the lower portion thereof so as to protrude outward in the radial direction and having an upper surface and a lower surface inclined. The stem body 27 includes an opening 29 formed at the upper end, a stem hole 23 formed on the lower side surface (above the annular flange 28), and an intra-stem passage 30 that connects the opening 29 and the stem hole 23. It has.

  The stem rubber 26 has a ring shape, and the outer periphery is fixed in an annular shape between the upper end of the housing 22 and the mounting cup 21, and the inner peripheral surface inserts and seals the outer peripheral surface of the stem main body 27. Is in contact with the outer peripheral edge of the upper surface of the annular flange 28 to prevent the stem 24 from popping out and to seal the entire aerosol valve.

  That is, in the aerosol valve 19, since the stem 11 is biased upward by the spring 25, a seal is formed between the outer peripheral edge of the upper surface of the annular flange 28 and the lower surface of the stem rubber 26. A portion below the vicinity of the annular flange 28 of the stem 11 is accommodated in the housing 22, and the upper portion of the stem body 27 is configured to protrude from the mounting cup 21. Therefore, the stem 11 is accommodated in the housing 22 so as to be vertically movable and tiltable.

  Since the tilt type aerosol valve 19 is configured as described above, when the stem 11 is pushed downward or when the stem 11 is inclined in any direction, the seal between the stem rubber 26 and the stem annular flange 28 is sealed. Is eliminated and the stem hole 23 is opened. The stem 11 is returned by the spring 25 when the operation of tilting downward or tilting to the stem 11 is stopped.

  The material of the member of these aerosol valves 19 is not particularly limited, and may be formed from metal or synthetic resin.

  The nozzle 13 includes a stem engagement portion 33 into which a stem body 27 formed at the lower end is inserted, an injection hole 34 formed at the upper end, and an in-nozzle passage 35 that communicates the stem engagement portion 33 and the injection hole 34. It is the cylindrical thing which consists of.

  Returning to FIG. 1, the injection member 16 includes an attachment member 14 attached to the aerosol container 12 and an operation member 15 formed to cover the nozzle 13 and attached to the attachment member 14.

  The mounting member 14 includes a cylindrical container mounting portion 37 mounted on the aerosol container 12, a cap mounting portion 38 formed at the upper end of the container mounting portion 37, and an inner peripheral side of the cap mounting portion 38. And a base mounting portion 39 formed on the base plate.

  The container mounting portion 37 includes a protrusion 41 whose lower end protrudes inward so as to be clip-fitted to the outer periphery of the covering portion of the mounting cup.

  In the cap mounting portion 38, a side wall 43 is formed on the radially inner side from the upper end of the container mounting portion 37 so as to form a stepped portion 42 at the upper end of the container mounting portion 37.

  The base mounting portion 39 includes a holding portion 44 that extends radially inward from the upper end of the side wall 43 of the cap mounting portion, and an annular engagement groove 45 that is formed on the outer peripheral side from the lower surface of the holding portion 44.

  The operation member 15 is elastic and has a cylindrical tip portion 47 formed so as to cover the nozzle 13 and an elastic deformation portion that is curved and extends downward while expanding in the radial direction from the lower end of the tip portion. 48 and a flange-like base 49 extending radially outward from the lower end of the elastically deforming portion 48.

  The tip portion 47 is designed to have a size that allows the nozzle to be inserted closely, and has a notch 50 at its upper end. In addition, by bringing the upper end of the nozzle 13 into intimate contact with the inner peripheral surface of the upper end of the tip portion 47, the notch 50 is opened only during the injection operation. Therefore, the aerosol composition remaining in the nozzle 13 after spraying the aerosol composition The after-draw phenomenon that leaks can be prevented.

  The elastic deformation portion 48 protrudes in a bowl shape at the upper end of the aerosol container, and is provided so as to form a space 51 with respect to the upper end of the aerosol container.

  The outer periphery 52 of the base 49 is fitted in the engagement groove 45 of the base mounting portion of the mounting member. In order to increase the fitting strength, the thickness of the outer periphery may be slightly larger than that of the engagement groove 45 and the outer periphery 52 may be inserted into the engagement groove 45 as in this embodiment.

  Since this operation member 15 is made of a flexible and elastic material such as silicone rubber, synthetic rubber, silicone elastomer, etc., even if the operation member 15 is brought into direct contact with the affected part so as to press it, the affected part is hardly damaged, Furthermore, the irritation | stimulation to the affected part by pressing can be weakened.

  Further, in the operation member 15, the tip of the tip portion 47 has the cut portion 50, but in a normal state, the cut portion 50 of the tip portion 47 is closed by elasticity. Therefore, the aerosol valve 19 is opened, and the cut portion 50 is opened by the pressure of the aerosol composition ejected from the nozzle 13. In this case, since the aerosol composition is also injected into the outside air after colliding with the cut portion 50, it also has an action of weakening the momentum. Therefore, it is preferable when spraying in the form of foam, rough mist, or mist.

  When the aerosol device 10 configured as described above is used, the nozzle 13 is pushed downward or tilted by pressing the operating member 15 against the affected part (see FIG. 2b). At the same time, the stem 11 is also pushed or tilted downward, the seal between the stem annular flange 28 and the stem rubber 26 is released, and the stem hole 23 is opened. As a result, the aerosol composition filled in the aerosol container 12 is introduced into the housing 22 from the dip tube 24, and further from the notch 50 of the operating member through the stem hole 23, the stem passage 30, and the nozzle passage 35. Be injected.

  In addition to the usage method of pressing the operation member 15 against the affected area, the distal end of the distal end portion 47 of the operation member may be brought close to the affected area, and the distal end portion 47 of the operation member may be directly tilted with a finger, or the elastic deformation portion of the operation member 48 may be pushed in (see FIG. 2c). In this case, the nozzle 13 receives a force in a direction in which the nozzle 13 is pushed down by the deformation (dent) of the elastic deformation portion 48. In any case, the aerosol valve 19 is opened with the movement of the nozzle 13.

  The aerosol device 55 of FIG. 3A includes an operation member 56 having a space 59 between the nozzle portion 13 and an upper portion 58 of a tip portion 57 having a spherical shape.

  In such an aerosol device 55, when the upper portion 58 of the tip portion 57 is pushed laterally, the air in the upper portion is discharged outside from the cut portion 50 and deformed, and the nozzle 13 is tilted (see FIG. 3b). . Thereby, as described above, the aerosol composition is ejected from the cut portion 50 at the tip. At this time, the space 59 between the nozzle 13 and the tip part 57 is small. Next, when the injection operation is stopped, the nozzle 13 returns to the original upright state, and at the same time, the upper portion 58 of the tip portion returns to the original spherical shape by the elastic force. In this way, the upper portion 58 tries to return to the original spherical shape, and the space 59 is decompressed by returning. Therefore, the aerosol composition remaining in the vicinity of the nozzle injection hole 34 or the notch 50 at the tip is sucked to prevent after-draw.

  The aerosol device 60 shown in FIG. 4 includes an external spring 61 between the nozzle 13 and the mounting cup 21 of the aerosol container. The elastic force of the external spring 61 is stronger than the spring 25 of the aerosol valve. Other configurations are substantially the same as the aerosol device 55 of FIG. 3a.

  In the aerosol device 55 of FIG. 3a, the base 49 of the operation member 56 is fixed to the mounting member 14, and the operation member 56 has an elastic force, so that the height of the stem, the length of the nozzle, Due to variations in the size of the operation member, the operation member 56 may contract even when not in use, and the nozzle 13 may receive a force that always presses downward. With this force, the tilt type aerosol valve is weak in contact between the lower surface of the stem rubber and the annular flange, and the sealing performance is likely to be lowered (a state of fine operation). Therefore, by providing an external spring 61 as in the aerosol device 60, the nozzle 13 is biased upward to maintain the sealing performance of the aerosol valve 19, and between the nozzle injection hole 34 and the tip portion 57. Can also be provided with a sealing property.

  The aerosol device 70 of FIG. 5a is composed of a small aerosol container 71 and an injection member 72 attached thereto, and does not have a nozzle, and the distal end portion 74 of the operation member 73 is directly attached to the stem 11. . Moreover, the aerosol container 71 is a conventionally well-known thing which has fixed the valve | bulb to the pressure-resistant container which has a cylindrical opening part using the cover cap 75. FIG.

  The lower end of the mounting member 76 includes a container mounting portion 77 that engages with the lower end of the cover cap 75, and the cap mounting portion 38 and the base mounting portion 39, which are other configurations, are substantially the same as the aerosol device 10 of FIG. The same.

  The diameter of the pressure vessel 78 of the aerosol container is preferably 5 to 40 mm, particularly 10 to 30 mm, and the height is preferably 10 to 150 mm, particularly 20 to 100 mm. Usually, such a small aerosol container 71 is difficult to perform an injection operation. However, as shown in FIG. 5 b, the aerosol device can be used by holding it with three fingers and directly pressing the tip of the operation member 73 against the affected area or the like. For example, when it is used in an aerosol product for anti-inflammatory analgesics, it is very convenient for spraying to an affected part close to the nose such as a neck or shoulder, or a locally affected part such as a vase. Further, it may be used for aerosol products such as hair growth, antiperspirant and anti-itch caused by insect bites.

  In the aerosol device 80 shown in FIG. 5 c, a nozzle 81 for adjusting the spray state of the aerosol composition is inserted at the tip of the stem 11. The outer periphery of the side surface and the upper surface of the nozzle 81 is covered with the tip of the propellant, but the injection hole 81a of the nozzle 81 is not covered. Therefore, the spray state of the aerosol composition of the aerosol device 80 is controlled by the shape of the nozzle 81, and has no effect of weakening the momentum of spraying the aerosol composition by the tip. By controlling the diameter and length of the injection hole 81a of the nozzle, the injection form can be made into a spray, a rough mist, a rod, or the like. For example, as shown in FIG. 5d, a bush 86 having a cylindrical shape and a groove extending spirally on its side surface is inserted into the stem passage 30, and a nozzle 87 having a mechanical breakup mechanism is provided at the upper end of the stem. An aerosol device 85 may be mentioned. In the aerosol device 85, the aerosol composition released from the stem hole passes through the spiral groove on the side surface of the bush 86 and reaches between the upper end of the bush 86 and the back surface of the nozzle, where the mechanical breakup mechanism The aerosol composition swirls and is sprayed from the spray hole 88 in the form of a mist. The groove on the side surface of the bush may be a vertical groove extending in the vertical direction. The aerosol device shown in FIGS. 5A, 5B, and 5D has the tip of the injection member attached directly to the stem, or the nozzle is inserted into the opening of the stem and the tip is attached to the stem and the nozzle. The height can be made substantially the same as that of the aerosol container, and the size can be reduced without reducing the content of the aerosol composition.

  In the aerosol device 90 of FIG. 6, the distal end portion 92 of the operation member 91 includes a notch portion 93 formed of a cross-shaped slit, and two adjacent long slit end portions 93 a and two adjacent short slit end portions. 93b. Further, a space 94 is formed between the tip of the nozzle 13 and the tip of the tip 92.

  Since it is configured in this way, the volume of the space 94 is reduced by pressing the distal end of the operating member against the affected area by pressing the distal end of the distal end 92 and bending it in the direction of the long slit end 93a. The long slit end 93a is opened and the aerosol composition is injected (see FIG. 6c). When the injection operation is stopped, the notch 93 at the tip is closed due to elasticity, and the space is returned to its original volume, so that after-draw of the aerosol composition adhering or remaining near the notch is prevented.

  The tip 92 can be used for all aerosol devices described in the present embodiment.

  In addition, a stop chip that opens the stem or nozzle when operating the operating member and closes the stem or nozzle when the operating member is not operated is provided on the stem or nozzle of the aerosol device of the present invention disclosed in the embodiment. May be. By providing such a stop chip, the effect of preventing after-drawing is further enhanced.

It is side surface sectional drawing which shows one Embodiment of the aerosol apparatus provided with the injection member of this invention. 2a is a partial side cross-sectional view of the aerosol device of FIG. 1, and FIG. 2b is a partial side cross-sectional view showing a use state thereof. Fig. 3a is a partial side sectional view showing another embodiment of the aerosol apparatus provided with the injection member of the present invention, and Fig. 3b is a partial side sectional view showing a use state of Fig. 3a. It is a partial side sectional view showing other embodiments of an aerosol device provided with an injection member of the present invention. FIG. 5a is a partial side sectional view showing still another embodiment of the aerosol apparatus provided with the injection member of the present invention, FIG. 5b is a perspective view showing the use state thereof, and FIGS. 5c and 5d are the present invention. It is a partial side sectional view showing other embodiments of an aerosol device provided with the following injection member. FIG. 6a is a partial side cross-sectional view showing still another embodiment of an aerosol apparatus provided with an injection member of the present invention, and FIGS. 6b and 6c are partial perspective views thereof.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Aerosol apparatus 11 Stem 12 Aerosol container 13 Nozzle 14 Mounting member 15 Operation member 16 Injection member 17 Curling part 18 Pressure-resistant container 19 Aerosol valve 21 Mounting cup 22 Housing 23 Stem hole 24 Dip tube 25 Spring 26 Stem rubber 27 Stem main body 28 Annular flange 29 Opening 30 Stem passage 33 Stem engagement portion 34 Injection hole 35 Nozzle passage 37 Container attachment portion 38 Cap attachment portion 39 Base attachment portion 41 Projection portion 42 Step portion 43 Side wall 44 Suppression portion 45 Engagement groove 47 Tip portion 48 Elasticity Deformation part 49 Base part 50 Cutting part 51 Space 52 Outer circumference 55 Aerosol device 56 Operation member 57 Tip part 58 Upper part 59 Space 60 Aerosol apparatus 61 External spring 70 Aerosol apparatus 71 Aerosol container 72 injection member 73 operation member 74 tip portion 75 cover cap 76 attachment member 77 container attachment portion 78 pressure-resistant vessel 80 aerosol device 81 nozzle 81a injection hole 85 aerosol device 86 bush 87 nozzle 88 injection hole 90 aerosol device 91 operation member 92 tip portion 93 Notch part 93a Long slit end part 93b Short slit end part 94 Space

Claims (7)

It consists of a mounting member attached to the aerosol container and an elastic operation member fixed to the mounting member.
The operating member is a stem of an aerosol container, or a cylindrical tip that covers a nozzle attached to the stem, and an elastically deforming portion that extends downward and extends in a radial direction from the lower end of the tip. A flange-shaped base extending radially outward from the lower end of the elastically deformable portion,
An injection member for an aerosol device, wherein the mounting member fixes an outer periphery of a base. The injection member according to claim 1, wherein an upper end of the tip portion is provided with a notch that is normally closed by elasticity. The upper part of the said front-end | tip part protrudes spherically so that the space sealed between the said stem or nozzle may be formed. The aerosol apparatus provided with the aerosol container which consists of a pressure-resistant container and an aerosol valve, and the injection member of Claim 1 attached to the aerosol container. The aerosol device according to claim 4, wherein the aerosol container includes a tilt type aerosol valve. The aerosol apparatus according to claim 4, wherein a nozzle is attached to a stem of the aerosol container. The aerosol apparatus according to claim 6, further comprising an external spring between the nozzle and the upper end of the aerosol container, the elastic spring being stronger than the spring of the aerosol valve.

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