JP6434225B2 - Injection products - Google Patents

Description

  The present invention relates to an injection product. More specifically, the present invention relates to an injection product that can eliminate such clogging even when clogging occurs in an injection passage through which a stock solution passes during injection.

  Conventionally, for example, a hair spray that sprays a stock solution containing a synthetic resin in order to maintain set hair is known. Such a synthetic resin may cause clogging in an injection passage such as an injection hole or a stem hole. For example, when clogging occurs, for example, when aerosol injection that does not contain liquefied gas and pressurizes the stock solution with compressed gas and injects it, or when synthetic resin remains in the injection passage due to the passage of time from the previous use, It tends to occur when drying. Therefore, techniques for preventing such clogging have been proposed.

  Patent Document 1 discloses an apparatus including a press button for sucking a stock solution remaining in a passage near an injection hole after injection. Patent Document 2 discloses an aerosol hair spray that prevents clogging by containing a stock solution containing a setting agent resin compound, isopentane, and compressed gas in a specific mixing ratio.

JP 2000-335662 A Japanese Patent Laid-Open No. 2000-344631

  According to the apparatus described in Patent Document 1, the stock solution remaining in the passage is sucked into the collection region of the chamber through the suction port by operating the movable member, and then dried. However, there is a problem that the suction effect cannot be obtained if the synthetic resin in the stock solution is dried and the suction port is closed. Further, the stock solution in the chamber is discharged when the movable member is pushed down. However, the volume of the chamber is limited, the discharging action is weak, and the discharging effect is easily influenced by the method of pushing down the movable member and is likely to vary. The hair spray described in Patent Document 2 requires isopentane, which has high dissolving power for synthetic resins but extremely high combustibility. Therefore, safety to fire is low.

  The present invention has been made in view of such conventional circumstances, and in the case of injecting a stock solution containing a component (occlusive component) that is safe against fire and can close the inside of an injection passage. The purpose of the present invention is to provide an injection product that can eliminate such clogging even if the clogging due to an occlusive component occurs in the injection passage due to long use intervals or storage at high temperatures in summer. To do.

  An injection product according to an aspect of the present invention includes a container body that is filled with contents including a stock solution and a compressed gas, a valve mechanism that is attached to the container body, and an injection hole that injects the stock solution. An injection member attached to the valve body, and the valve mechanism and the injection member include an injection passage through which the stock solution taken in from the container body and injected from the injection hole passes, the stock solution being in the injection passage The valve mechanism includes a first operation state for performing an aerosol injection in which the stock solution is pressurized and injected with the compressed gas, and the stock solution is set to a pressure higher than that of the aerosol injection. Displacement to the second operating state in which pressure is applied and supplied to the injection passage is provided.

  According to such a configuration, the stock solution contains an occlusive component capable of occluding the injection passage. However, the injection product has a first operation state for performing aerosol injection in which the stock solution is pressurized and injected with compressed gas, and a second operation in which the stock solution is pressurized to a pressure higher than that of the aerosol injection and supplied to the injection passage. A valve mechanism that is displaced to the state is provided. Therefore, in the injection product, for example, even when the occlusive component adheres in the injection passage by narrowing or closing the inside of the injection passage by performing aerosol injection, the second operation state is changed from the first operation state. By switching to, and pressurizing the undiluted solution to a pressure higher than that of aerosol injection and supplying it to the injection passage, the clogging can be eliminated by dissolving or crushing the obstruction. Therefore, the injection product does not require the use of raw materials with low safety to fire, and it is always stable and obstructive regardless of the pressure of the compressed gas (regardless of the pressure in the container body). The removal effect can be obtained.

  In the above-described configuration, the occlusive component may be a synthetic resin capable of forming a film and occluding the injection passage.

  Conventionally, for example, in the case of a hair spray that sprays a stock solution containing a synthetic resin, a liquefied gas is often used instead of a compressed gas. In this case, the synthetic resin is dissolved in the stock solution using the dissolving power of the liquefied gas (liquid in a pressurized state). Further, since the liquefied gas is vaporized, even if an occlusive component remains in the injection passage after injection, the liquefied gas has an effect of discharging these. Therefore, the injection passage is not easily blocked. However, the injection product of the present invention does not contain liquefied gas in its contents, but contains compressed gas. The compressed gas is mainly a gas in a pressurized state and does not have an action of dissolving the synthetic resin. Moreover, since it hardly dissolves in the stock solution, the action of discharging the occlusive component remaining in the injection passage is small. Therefore, the synthetic resin, which is an occlusive component, can more easily block the injection passage. However, even in such a case, the injection product is pressurized to a higher pressure than the aerosol injection and supplied to the injection passage, thereby removing the blockage due to the occlusive component and eliminating clogging. be able to.

  The said structure WHEREIN: The said injection member may be provided with the front-end | tip nozzle which has a mechanical breakup mechanism.

  Conventionally, when a tip nozzle having a thin and complicated passage shape such as a mechanical breakup mechanism is used, the occlusive component tends to block the injection passage particularly in the mechanical breakup mechanism. However, even if the injection product uses a tip nozzle having such a mechanical breakup mechanism by pressurizing the stock solution to a pressure higher than that of aerosol injection and supplying it to the injection passage, the mechanical breakup mechanism The obstruction | occlusion of the injection path in can be removed, and clogging can be eliminated.

  In the above configuration, it is preferable that the injection product further includes a switching member for displacing the valve mechanism from the first operation state to the second operation state.

  According to the above configuration, the user presses the stock solution to a pressure higher than that of the aerosol injection and supplies it to the injection passage from the first operation state in which the aerosol injection is easily performed by operating the switching member. The operation state can be switched to.

  In the above configuration, the valve mechanism includes a cylindrical housing and a valve body including a stem that is slidably accommodated in the vertical direction in the housing, and the switching member has a sliding distance of the stem. It is preferable to displace the valve mechanism between the first operation state and the second operation state by adjusting.

  According to the above configuration, the switching member adjusts the sliding distance of the stem. Therefore, the user only has to operate the injection member to push down the injection member as much as possible. The first operation state in which the aerosol injection is performed and the first state in which the stock solution is pressurized to a pressure higher than the aerosol injection and supplied to the injection passage. The two operation states can be used properly.

  In the above configuration, the stem includes an internal stem having a stem hole and an external stem attached to an upper portion of the internal stem and protruding and retracting from the housing, and the valve main body includes the interior of the housing and the container main body. A piston member that divides into a first space through which the stock solution taken in from and a second space through which air introduced from the outside passes and slides in the housing in the vertical direction in cooperation with the stem The injection passage further includes an internal passage through which the stock solution taken from the container body passes to reach the stem hole, and an external passage through which the stock solution passes from the stem hole to the injection hole. The housing has an air introduction hole for connecting the second space and the internal space of the container body, and the valve mechanism includes When the piston member closes the stem hole and the air introduction hole in a non-injection state in which liquid is not injected, and is displaced from the non-injection state to the first operation state, the piston member causes the air introduction hole to be displaced. The piston member is moved downward when the stem hole is opened by sliding the stem downward while maintaining the closed position, and the stem operation hole is displaced from the first operation state to the second operation state. It is preferable that the air introduction hole is opened by sliding.

  According to the above configuration, the valve mechanism closes the stem hole and the air introduction hole by the piston member in the non-injection state. In addition, when the valve mechanism is displaced from the non-injection state to the first operation state, the stem hole is slid downward by sliding the stem downward while the piston member maintains the air introduction hole closed. Open. Thereby, the stock solution filled in the container body is pressurized by the compressed gas, introduced into the first space of the housing, and continuously injected through the stem hole (aerosol injection). Moreover, it is difficult for compressed gas to escape outside during aerosol injection. Furthermore, when the valve mechanism is displaced from the first operation state to the second operation state, the valve member slides downward to open the air introduction hole. The piston member is slid downward in the housing to compress the volume of the first space, and the stock solution stored in the first space is pressurized to a pressure higher than that of aerosol injection and supplied to the injection passage. (Occlusion removal operation, pump operation). In addition, since the air introduction hole is opened when operated in the second operation state, when the pressure in the container body is low, air from the outside is appropriately introduced every time the obstruction is removed. . As a result, even if the stock solution is reduced, a constant amount of the stock solution is replenished to the first space, and the stock solution can be always supplied to the external passage at a constant pressure to remove the blocking component.

  According to the present invention, in the case of injecting a stock solution containing a component that is safe against fire and can block the inside of the injection passage (occlusion component), the use interval becomes long or the temperature is high in summer. Even if clogging due to an occlusive component occurs in the injection passage due to storage or the like, it is possible to provide an injection product that can eliminate such clogging.

FIG. 1 is a schematic cross-sectional view of an injection product according to an embodiment (first embodiment) of the present invention. FIG. 2 is an enlarged view of the injection product shown in FIG. FIG. 3 is a perspective view for explaining the operation of the switching member. FIG. 4 is a perspective view for explaining the operation of the switching member. FIG. 5 is a schematic cross-sectional view of an injection product in which the valve mechanism is displaced to the first operation state. FIG. 6 is a schematic cross-sectional view of an injection product in which the valve mechanism is displaced to the second operation state. FIG. 7 is a schematic cross-sectional view of an injection product according to an embodiment (second embodiment) of the present invention.

(First embodiment)
An injection product according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view of an injection product 1 of the present embodiment. FIG. 2 is an enlarged view of the injection product 1 of the present embodiment shown in FIG. The injection product 1 shown in FIGS. 1 and 2 is in a state where the injection operation is not performed (non-injection state). The injection product 1 includes a container main body 2 for filling the contents, a valve mechanism 3 attached to the container main body 2, and an injection member 4 attached to the valve mechanism 3. The contents include a stock solution 5 and a compressed gas. The injection member 4 includes an injection hole 43a for injecting the stock solution. According to the injection product 1 of the present embodiment, an aerosol injection that pressurizes and injects the stock solution 5 with compressed gas (hereinafter also simply referred to as aerosol injection), and an injection passage that pressurizes the stock solution 5 to a pressure higher than that of the aerosol injection. It is possible to switch between the removal operation of the obstructions to be supplied to (hereinafter also simply referred to as pump operation). Moreover, in the injection product 1 of the present embodiment, switching between the aerosol injection and the pump operation can be performed by the user appropriately operating the injection member 4 or by operating the switching member 9 described later. You can also Hereinafter, each configuration will be described. In addition, embodiment shown below is an example and the structure of the injection product 1 will not be specifically limited if it can be switched suitably between aerosol injection and pump operation.

<Container body 2>
The container main body 2 is a pressure-resistant container for filling contents, and has a bottomed cylindrical main body portion 21 and a cylindrical shape having a smaller diameter than the main body portion 21 and provided integrally with the upper portion of the main body portion 21. And a neck portion 22. An opening is formed in the upper portion of the neck portion 22. The opening is a filling port for filling the contents, and is closed by the valve mechanism 3 after filling the contents.

  The material which comprises the container main body 2 is not specifically limited. Examples of the material constituting the container body 2 include synthetic resins such as polyethylene terephthalate and polyethylene, and metals such as aluminum and tinplate. In the case of using a synthetic resin, for example, an ultraviolet absorber may be contained in order to prevent deterioration of contents due to sunlight, and carbon or silica may be added to the outer surface or inner surface of the container body in order to prevent transmission of compressed gas. Etc. may be deposited. On the outer periphery of the neck portion 22, a male screw portion 23 for connecting to a screw cap 62 described later is formed.

<Valve mechanism 3>
The valve mechanism 3 is a member for sealing the inside of the container body 2, for taking the stock solution 5 from the container body 2 and injecting it with the pressure of the compressed gas, and for taking the stock solution 5 from the container body 2 and pressurizing it. The check valve mechanism 8 is formed by the housing 6, the valve body 7 accommodated in the housing 6, the housing 6 and the valve body 7, and opens and closes an air introduction path for introducing air into the container body 2. With. The valve body 7 includes a stem 71 (an inner stem 74 and an outer stem 75) that is slidably accommodated in the housing 6 in the vertical direction. In the present embodiment, the valve mechanism 3 is displaced between a first operation state in which aerosol injection is performed and a second operation state in which an obstruction removal operation is performed. Details of the first operation state and the second operation state will be described later.

(Housing 6)
The housing 6 includes a cylindrical housing body 61 and a screw cap 62 that is connected to the housing body 61 and attaches the housing body 61 to the container body 2.

  The housing main body 61 has a cylindrical shape including therein a first space S1 in which the stock solution 5 taken from the container main body 2 passes or is temporarily stored, and a second space S2 through which air introduced from the outside, which will be described later, passes. It is a member. The first space S1 and the second space S2 are partitioned by a piston member 72 described later. The housing main body 61 has an upper end formed with an opening through which an outer stem 75 described later appears and a lower end to which a tube 63 for taking in the stock solution 5 stored in the container main body 2 is connected.

  At the upper end of the housing main body 61, a flange portion 61a protruding outward in the radial direction is provided. The flange portion 61 a is a part for positioning the housing body 61 on the container body 2, and the size (outer diameter) of the flange portion 61 a substantially matches the outer diameter of the neck portion 22 of the container body 2. The lower surface of the flange portion 61 a and the upper end of the neck portion 22 are positioned via the gasket 64. The housing body 61 is spaced from the outer peripheral wall of the housing main body 61 and the inner peripheral wall of the neck portion 22 of the container main body 2 in a state where the housing main body 61 is positioned by the flange portion 61a.

  Near the lower end of the housing body 61, a small diameter portion 61 b having a smaller diameter than the housing body 61 is formed. A connecting groove 61c into which the tube 63 is inserted is formed in the small diameter portion 61b. The tube 63 is a relatively long cylindrical member extending to the vicinity of the inner bottom of the container body 2, and is immersed in the stock solution 5 stored in the container body 2 and one end inserted into the connection groove 61 c. And an other end formed with an opening for taking in.

  A liquid phase communication hole 61 d for introducing the stock solution 5 taken from the container body 2 through the tube 63 into the first space S <b> 1 of the housing body 61 is formed in the center of the small diameter portion 61 b. A ball valve mechanism 65 is provided at a connection point between the liquid phase communication hole 61d and the first space S1.

  The ball valve mechanism 65 is a valve mechanism for taking in the stock solution 5 in one direction from the container body 2 to the first space S1. The ball valve mechanism 65 includes a recess 65a formed by expanding the inner peripheral wall of the housing body 61 radially inward in the vicinity of the lower end of the housing body 61, and a ball 65b dropped into the recess 65a. . The ball 65b closes the communication portion between the liquid phase communication hole 61d and the first space S1 by its own weight when the injection member 4 is not operated. On the other hand, when the valve mechanism 3 is in a first operation state in which the aerosol injection is performed, which will be described later, the ball 65b is undiluted due to the communication between the pressure by the compressed gas in the container body 2 and the atmosphere by opening the stem hole. Flows into the first space S1 from the tube 63, and the ball 65b is lifted by the liquid flow to open the communication portion between the liquid phase communication hole 61d and the first space S1. Further, the ball 65b is lifted by the liquid flow generated when the undiluted solution 5 in the container body 2 is taken into the first space S1 in the second operation state for removing the obstruction, and the liquid phase communication hole The communication location between 61d and the first space S1 is opened.

  An air introduction hole 61 e that is appropriately opened and closed by a piston member 72 described later is formed in the side peripheral wall of the housing body 61. The air introduction hole 61e connects the second space S2 and the inner space of the container body 2, and after operating the pump in a state where the pressure in the container body is sufficiently low, external air is introduced into the container body 2. It is a hole for introducing. The air introduction hole 61e is closed by the piston member 72 in the non-injection state or the first operation state described later, and the piston member 72 is moved when the valve mechanism 3 is displaced from the first operation state to the second operation state. Opened by sliding downward.

  The screw cap 62 holds the upper surface of the flange portion 61a and has a disk-shaped top plate 62a having an opening at the center, a side peripheral portion 62b provided downward from the outer peripheral edge of the top plate 62a, and the top plate 62a. And a cylindrical mounting portion 62c provided upward from the inner peripheral edge. A female screw portion 62d for connecting to the male screw portion 23 of the neck portion 22 is formed on the inner peripheral wall of the side peripheral portion 62b. The mounting portion 62c includes a cover portion 62e that is provided radially inward on the inner peripheral wall, and an engaging portion 62f that is provided so as to protrude outward in the radial direction on the outer peripheral wall. The cover part 62e is a part for positioning a check valve mechanism 8 to be described later with respect to the housing body 61. The engaging part 62 f is a part for attaching the injection member 4 to the screw cap 62.

(Valve body 7)
The valve body 7 is a member for sending the stock solution 5 taken from the container body 2 to the injection member 4, and a stem 71 accommodated in the housing body 61 so as to be slidable in the vertical direction, and cooperates with the stem 71. And a piston member 72 that slides up and down in the housing 7 and a spring member 73 that biases the stem 71 upward.

  The stem 71 includes an inner stem 74 in which a stem hole 76 is formed, and an outer stem 75 that is attached to the upper portion of the inner stem 74 and protrudes and disappears from an opening formed at the upper end of the housing body 61. The inner stem 74 and the outer stem 75 are provided on the same axis and slide integrally in the housing body 61 in the vertical direction.

  The inner stem 74 has a downward hook-like shape, and has a relatively large diameter hook-like portion 74a whose upper surface is connected to the upper end of the spring member 73, and a smaller diameter than the hook-like portion 74a, and the upper surface of the hook-like portion 74a. And a cylindrical cylindrical portion 74b extending upward from the center.

  An annular contact groove 74h with which the lower end of the inner sliding portion 77 of the piston member 72 comes into contact is formed at a connection location between the upper surface of the bowl-shaped portion 74a and the cylindrical portion 74b. An annular connection groove 74c to which the upper end of the spring member 73 is connected is formed on the lower surface of the flange portion 74a.

  The cylindrical portion 74b has an internal stem passage 74d through which the stock solution 5 passes during injection. The cylindrical portion 74b has a cylindrical columnar portion 74e in which a stem hole 76 communicating the inner stem passage 74d and the first space S1 is formed on the outer peripheral wall, and the diameter of the cylindrical portion 74b is reduced from the upper end to the upper side of the columnar portion 74e. A reduced diameter portion 74f and a cylindrical small diameter portion 74g extending upward from the upper end of the reduced diameter portion 74f. The cylindrical portion 74e, the reduced diameter portion 74f, and the small diameter portion 74g are all formed coaxially.

  The outer stem 75 includes an outer stem inner passage 75a through which the stock solution 5 that has passed through the inner stem inner passage 74d further passes. The diameter-reduced diameter part 75c and the cylindrical part 75d extended upwards from the upper end of the diameter-reduced part 75c are included. The upper end of the cylindrical part 75d protrudes from the container main body 2, and the injection member 4 is attached. The outer diameter of the cylindrical portion 75 d is smaller than the inner diameter of the housing body 61. Therefore, the outer peripheral wall of the outer stem 75 and the inner peripheral wall of the housing body 61 define a space (air introduction path) through which air introduced from the outside passes.

  When the valve mechanism 3 is displaced from a first operation state described later to a second operation state, the skirt portion 75b presses the lower end against a connection ring 79 described later of the piston member 72, thereby moving the piston member 72 downward. It is a part for sliding. The outer diameter of the skirt portion 75b is approximately the same as that of the flange portion 74a. The inner diameter of the skirt portion 75b is larger than the outer diameter of the small diameter portion 74g. Therefore, the inner peripheral wall of the skirt portion 75b is separated from the outer peripheral wall of the small diameter portion 74g. An upper inner sliding portion 77a of a piston member 72, which will be described later, is inserted into the space formed as described above.

  The inner diameter of the cylindrical portion 75d is approximately the same as the outer diameter of the small diameter portion 74g. Therefore, the outer stem 75 is attached to the inner stem 74 by inserting the upper portion of the small diameter portion 74g from the lower end side of the cylindrical portion 75d. In the mounted state, the inner stem inner passage 74d and the outer stem inner passage 75a communicate with each other.

  The piston member 72 is a member for partitioning the internal space of the housing body 61 into a first space S1 and a second space S2, and for opening and closing the stem hole 76 and the air introduction hole 61e as appropriate. The piston member 72 slides up and down in the housing body 61 in cooperation with the inner stem 74 and the outer stem 75 as appropriate. The piston member 72 includes an inner sliding portion 77 that slides with the outer peripheral wall of the inner stem 74, an outer sliding portion 78 that slides with the inner peripheral wall of the housing main body 61, and the inner sliding portion 77 and the outer sliding portion 78. And a connecting ring 79 connecting the two. The connecting ring 79 connects the vicinity of the center between the inner sliding portion 77 and the outer sliding portion 78.

  The inner sliding portion 77 is a portion for appropriately opening and closing the stem hole 76, and is provided at an upper inner sliding portion 77 a corresponding to an upper portion of a connection portion with the connection ring 79 and a lower portion of a connection portion with the connection ring 79. And a corresponding lower inner sliding portion 77b. The shape of the inner peripheral wall of the inner sliding portion 77 is complementary to the shape of the outer peripheral wall of the inner stem 74. In the non-injecting state, the inner sliding portion 77 uses the inner peripheral wall as the outer peripheral wall of the inner stem 74. The stem hole 76 is closed by close contact.

  The upper end of the upper inner sliding portion 77a is inserted into a space formed between the outer peripheral wall of the inner stem 74 and the inner peripheral wall of the skirt portion 75b of the outer stem 75, and the valve mechanism 3 is in the first state from the non-injection state. When the outer stem 75 and the inner stem 74 are slid downward when displacing to the operation state, they are inserted deeper into the space formed by the outer peripheral wall of the inner stem 74 and the inner peripheral wall of the outer stem 75.

  When the inner stem 74 is urged upward by the spring member 73, the lower inner sliding portion 77b is urged upward by the contact groove 74h and the lower end of the flange 74a contacting each other.

  The outer sliding portion 78 is a columnar member that appropriately opens and closes the air introduction hole 61 e and slides along the inner peripheral wall of the housing body 61. The outer sliding portion 78 includes an upper outer sliding portion 78 a corresponding to the upper portion of the connection portion with the connecting ring 79 and a lower outer sliding portion 78 b corresponding to the lower portion of the connecting portion with the connecting ring 79. .

  When the upper end of the upper outer sliding portion 78a is urged upward by the spring member 73 via the inner stem 74, it abuts on the lower end of a pressing member 81 to be described later.

  The connecting ring 79 is a part that connects the inner sliding portion 77 and the outer sliding portion 78. Further, the connecting ring 79 abuts the lower end of the skirt portion 75b on the upper surface. For this reason, the piston member 72 is pushed downward after the skirt 75b abuts against the upper surface of the connecting ring 79 by the outer stem 75 being pushed down during injection.

  Examples of the material constituting the piston member 72 include materials having elasticity such as synthetic resin, silicone rubber, and synthetic rubber.

  The spring member 73 is a member for urging the stem 71 upward, and has an upper end connected to the connection groove 74c formed on the lower surface of the flange-shaped portion 74a and a lower end attached around the recess 65a. . The spring member 73 is disposed in a compressed state in the housing body 61 and biases the internal stem 74 upward.

  The valve body 7 configured as described above is fixed to the container body 2 by screwing the female screw part 62 d of the screw cap 62 with the male screw part 23 of the container body 2.

(Check valve mechanism 8)
The check valve mechanism 8 is a mechanism for appropriately introducing air from the outside into the container main body 2, and is provided between the screw cap 62 and the housing main body 61, and includes a pressing member 81 and a sealing material 82.

  The pressing member 81 is a member for positioning the sealing member 82 together with the cover portion 62e. The lower end of the pressing member 81 is in contact with the upper end of the upper outer sliding portion 78a and defines the position of the piston member 72 in the non-injecting state.

  The sealing material 82 is a member for appropriately opening and closing an air introduction path formed by the outer stem 75 and the housing body 61, and the outer peripheral edge attached along the inner peripheral wall of the screw cap 62 and the outer stem 75 are inserted therethrough. And an inner peripheral edge defining an insertion hole. Further, the sealing material 82 has a sealing portion extending downward from the inner peripheral edge so as to be in surface contact with the outer peripheral wall of the outer stem 75. The sealing material 82 is sandwiched in a pressed state between the cover portion 62 e and the upper surface of the pressing member 81 by screwing the screw cap 62 to the neck portion 22. Further, the diameter of the inner peripheral edge of the sealing material 82 is adjusted to be slightly smaller than the outer diameter of the cylindrical portion 75d. Therefore, the sealing material 82 closes the air introduction path with a predetermined surface contact pressure (closed state). When the sealing material 82 is in the closed state as described above, the inside of the container body 2 and the outside are sufficiently blocked, and the leakage of the compressed gas from the inside of the container body 2 is prevented. The pressure (closing pressure) at which the sealing material 82 closes the outer stem 75 includes the internal pressure of the container body 2 in addition to the surface contact pressure described above. That is, the internal space of the container body 2 and the second space S2 are communicated with each other through the air introduction hole 61e. The air introduction hole 61e is opened by sliding the piston member 72 downward when the valve mechanism 3 is displaced from the first operation state to the second operation state. In this case, the gas phase portion (the presence of compressed gas) of the container body 2 and the second space S2 are communicated with each other through the opened air introduction hole 61e, and the same pressure is obtained. Therefore, the sealing material 82 closes the outer stem 75 by a closing pressure including the surface contact pressure and the internal pressure of the container body 2.

<Injection member 4>
The injection member 4 includes an injection nozzle 41 attached to the external stem 75 and an operation unit 42 attached to the screw cap 62.

  The injection nozzle 41 is an L-shaped cylindrical body, and includes one end connected to the upper end of the cylindrical portion 75d and the other end connected to the tip nozzle 43. On the outer peripheral wall of the injection nozzle 41, there is provided a rotating shaft 41a that is pivotally supported by a bearing formed in a main body portion 42h of a lever 42b described later. A locking groove 41b (an example of an engaged portion, see FIG. 3) is formed on the lower surface 41c at one end of the injection nozzle 41. The locking groove 41b is provided to lock the locking protrusion 95 of the switching member 9 when the valve mechanism 3 is displaced to a first operation state described later. The depth of the locking groove 41 b is approximately the same as the height of the locking protrusion 95. Further, the depth of the locking groove 41 b is slightly longer than the distance from the bottom of the contact groove 74 h of the internal stem 74 to the stem hole 76.

  The tip nozzle 43 is a jig for adjusting the injection direction, injection shape, and the like of the stock solution 5, one end connected to the injection nozzle 41, and the other end formed with the injection holes 43 a through which the stock solution 5 is injected. Is provided. In the injection product 1 of the present embodiment, a nozzle tip 43 b having a mechanical breakup mechanism is attached to the tip nozzle 43. The mechanical breakup mechanism is a mechanism for spraying the stock solution 5 uniformly over a wide range, and has a groove (channel) for applying a turning force to the stock solution 5 to make it fine to an appropriate size.

  The tip nozzle 43 provided with such a nozzle tip 43b has a complicated structure as compared with a tip nozzle (not shown) provided with a conventionally known simple linear injection path. Therefore, the occlusive component contained in the content to be described later tends to block the groove of the mechanical breakup mechanism. However, the injection product 1 according to the present embodiment performs the pump operation by displacing the valve mechanism 3 from the first operation state in which the aerosol injection described later is performed to the second operation state in which the obstruction is removed. Even when the tip nozzle 43 having such a mechanical breakup mechanism is mounted, the blocking state of the blocking component in the groove can be eliminated, and clogging can be removed.

  The operation part 42 is a part for sliding the stem 71 in order to inject the stock solution 5 stored in the first space S1, and the lever support part 42a attached to the attachment part 62c and the lever support part 42a And a pivotally supported lever 42b.

  The lever support part 42a includes a cylindrical main body part 42c and a support arm 42d protruding from the side wall of the main body part 42c. The main body portion 42c is formed with an annular groove 42e into which the mounting portion 62c is inserted, and an engagement groove 42f with which the engaging portion 62f of the mounting portion 62c is engaged is formed on the inner surface of the annular groove 42e. . The lever support portion 42a is attached to the screw cap 62 by inserting the attachment portion 62c into the annular groove 42e and engaging the engagement portion 62f and the engagement groove 42f. In the vicinity of the upper end of the support arm 42d, a rotating shaft 42g that is pivotally supported by a bearing (not shown) provided on a lever 42b described later is formed.

  The lever 42b is a part operated by the user at the time of injection, and includes a main body portion 42h including one end on which a bearing pivotally supported by the support arm 42d is formed and the other end where the tip nozzle 43 is exposed, and a main body portion And a trigger portion 42i extending downward from the other end of 42h. The main body portion 42h is formed with a bearing (not shown) on which the rotation shaft 41a is pivotally supported at the center portion. The trigger part 42i is operated by the user at the time of injection.

  According to the injection member 4 configured as described above, when the user pulls the trigger portion 42i, the lever 42b rotates with the rear end pivotally supported as a base point and is formed at the central portion. The injection nozzle 41 is pushed down through the bearing.

<Switching member 9>
The switching member 9 is a jig that is preferably used when the valve mechanism 3 is displaced to a non-injection state, a first operation state, and a second operation state, which will be described later. In addition to FIG. 1 and FIG. 2, the switching member 9 of this embodiment is demonstrated with reference to FIG. FIG. 3 is a perspective view for explaining the operation of the switching member 9. In the present embodiment, the switching member 9 is not essential.

  The switching member 9 has a cylindrical mounting portion 91 for mounting on the main body portion 42c, and a cylindrical contact for abutting with one end of the injection nozzle 41 to appropriately restrain the downward movement of the injection nozzle 41. And a plate-like operation portion 93 formed to bulge outward in the radial direction on the outer peripheral wall of the main body portion 90. On the outer peripheral wall of the main body 90, a cutout portion 94 that is partially cut out is formed. The mounting portion 91 and the contact portion 92 have the same outer diameter and are integrally formed. Further, the diameter of the center hole 91a of the mounting portion 91 is larger than the diameter of the center hole 92b of the contact portion 92 and is approximately the same as the outer diameter of the main body portion 42c. Therefore, the mounting portion 91 can be attached to the main body portion 42 c by fitting into the main body portion 42 c via the notch portion 94. On the other hand, the diameter of the center hole 92 b of the contact portion 92 is slightly larger than the outer diameter of the outer stem 75. Therefore, when the switching member 9 is attached to the outer periphery of the main body portion 42c and the outer stem 75 by mounting the mounting portion 91 on the main body portion 42c, the inner peripheral edge defining the center hole 92b is the same as the outer peripheral wall of the outer stem 75. Do not touch. Thereby, when the external stem 75 is slid in the up-down direction, the switching member 9 (contact portion 92) does not hinder the sliding.

  A locking projection 95 (an example of an engaging portion) is formed on the upper surface 92 a of the contact portion 92. The locking projection 95 is appropriately engaged with a locking groove 41 b formed on the lower surface of one end of the injection nozzle 41.

  The switching member 9 is made of a resin having some elasticity. Therefore, the switching member 9 can be easily attached to the outer periphery of the main body portion 42c and the outer stem 75 by expanding the notch portion 94 and fitting the mounting portion 91 into the main body portion 42c. Similarly, the switching member 9 can be easily detached from the main body 42c by expanding the notch 94.

  The contact portion 92 is disposed so as to be sandwiched between the lower surface 41c on one end side of the injection nozzle 41 and the upper surface of the main body portion 42c in a state where the switching member 9 is attached to the main body portion 42c. Therefore, the downward movement of the injection nozzle 41 is restricted when the lower surface 41c and the upper surface of the locking projection 95 come into contact with each other.

  The operation unit 93 is a part that is picked by fingertips when the user operates the switching member 9. The user can rotate the switching member 9 around the axes of the main body portion 42 c and the external stem 75 by operating the operation portion 93. A method of operating the switching member 9 to switch to the non-injection state, the first operation state, and the second operation state will be described later.

(Contents)
The contents are filled in the container body 2 and include the stock solution 5 and the compressed gas. The stock solution 5 is supplied from the container body 2 to the valve mechanism 3 by operating the injection member 4. Specifically, the stock solution 5 is taken in from the lower end of the tube 63 and passes through the first space S1 or is temporarily stored in the first space S1, and then the internal stem passage 74d of the internal stem 74 through the stem hole 76. To be supplied. Next, the stock solution 5 is supplied to the external stem passage 75a of the external stem 75 and the nozzle passage 41d of the injection nozzle 41, and is injected from the injection hole 43a. In the present embodiment, in particular, the passage from the lower end opening of the tube 63 to the valve mechanism 3 where the undiluted solution 5 in the container body 2 is further injected from the injection hole of the injection member 4 is particularly referred to as “injection passage”. That's it. The injection passage is a passage through which the undiluted solution 5 taken from the container body 2 reaches the stem hole 76, that is, the undiluted solution 5 reaches from the lower end opening of the tube 63 to the stem hole 76 through the tube 63 and the first space S1. And the passage that passes from the stem hole 76 to the injection hole 43a, that is, the passage from the stem hole 76 to the injection hole 43a through the internal stem internal passage 74d, the external stem internal passage 75a, and the nozzle internal passage 41d. It consists of an external passage to.

  The stock solution 5 is a mixture of a component (occlusion component) that adheres to the injection passage and narrows or closes the injection passage. In the present embodiment, adhesion of an occlusive component, stenosis or occlusion due to the occlusive component is also simply referred to as “occlusion”.

  The occlusive component is a component that adheres to an object such as hair or skin and exhibits a desired effect, and examples thereof include synthetic resins, water-soluble polymers, and powders.

  The synthetic resin is blended for setting hair, for example. Here, conventionally, for example, in the case of a hair spray that sprays a stock solution containing a synthetic resin, a liquefied gas is often used instead of a compressed gas. In this case, the synthetic resin is dissolved in the stock solution using the dissolving power of the liquefied gas (liquid in a pressurized state). Further, since the liquefied gas is vaporized, even if an obstructive component remains in the injection passage, particularly the injection passage such as the stem hole 76 and the injection hole 43a after the injection, the liquefied gas is discharged. Therefore, the injection passage is not easily blocked. However, the injection product 1 of this embodiment does not contain liquefied gas as the contents, but contains compressed gas. The compressed gas is mainly a gas in a pressurized state and does not have an action of dissolving the synthetic resin. Moreover, since it hardly dissolves in the stock solution, the action of discharging the occlusive component remaining in the injection passage is small. Therefore, the synthetic resin which is an occlusive component is easy to dry and form a film, and to block the injection passage. However, the injection product 1 of the present embodiment displaces the valve mechanism 3 from the first operation state in which aerosol injection described later is performed to the second operation state, and pressurizes the stock solution to a pressure higher than that of the aerosol injection, thereby causing an injection passage. By supplying to the nozzle, the blocking state of the injection passage due to the blocking component can be eliminated, and clogging can be removed.

  The synthetic resin is used after being dissolved in a solvent such as ethanol. Synthetic resins include polyvinylpyrrolidone, polyvinylpyrrolidone / vinyl acetate copolymer, acrylic acid / alkyl methacrylate copolymer, acrylic acid octylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer, vinyl pyrrolidone / methacrylic acid. Acid N, N-dimethylaminoethyl / stearyl acrylate / tripropylene glycol diacrylate copolymer, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose chloride, cross-linked N, N-dimethylacrylamide 2-acrylamido-2-methylpropanesulfonic acid sodium copolymer, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate ester Copolymer, acrylic resin alkanolamine, vinylpyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, N, N-dimethyl-N- (2-methacryloyloxyethyl) amine N-oxide / methacrylic acid Examples thereof include an alkyl copolymer.

  As for content of a synthetic resin, it is preferable that solid content is 0.1 mass% or more in a stock solution, and it is more preferable that it is 0.3 mass% or more. Moreover, it is preferable that solid content is 10 mass% or less, and, as for content of a synthetic resin, it is more preferable that it is 8 mass% or less. When the content of the synthetic resin is less than 0.1% by mass, the effect of setting the hair tends to be insufficient. On the other hand, when the content of the synthetic resin exceeds 10% by mass, the stock solution 5 remaining in the injection passages such as the stem holes 76 and the injection holes 43a is dried to form a strong film, and the injection passages are tightly blocked. It tends to be difficult to remove.

  The water-soluble polymer is used, for example, as a thickening agent that increases the viscosity of the stock solution 5 to form a gel. The water-soluble polymer is used after being dissolved in water, ethanol, an aqueous ethanol solution or the like. Examples of water-soluble polymers include cellulosic polymers such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, gums such as carrageenan, xanthan gum, gum arabic, tragacanth gum, cationized guar gum, guar gum, gellan gum, locust bean gum, gelatin And starches such as dextran, dextrin, pectin, corn starch, wheat starch, modified potato starch, sodium alginate, sodium hyaluronate, polyvinyl alcohol, carboxyvinyl polymer and the like.

  The content of the water-soluble polymer is preferably 0.01% by mass or more, more preferably 0.05% by mass or more in the stock solution. In addition, the content of the water-soluble polymer is preferably 5% by mass or less, and more preferably 3% by mass or less. When the content of the water-soluble polymer is less than 0.01% by mass, the effect of increasing the viscosity of the stock solution 5 tends not to be obtained sufficiently. On the other hand, when the content of the water-soluble polymer exceeds 5% by mass, the viscosity tends to be too high to be easily discharged from the injection passage.

  The powder is used as an auxiliary agent for imparting an antiperspirant effect, an astringent effect, a sunscreen effect, etc., and improving the feeling of use. The powder is used by being dispersed in ethanol, an aqueous ethanol solution, or the like. Examples of powders include antiperspirants such as chlorohydroxyaluminum, ultraviolet scattering agents such as titanium oxide and zinc oxide, exothermic agents such as zeolite, porous silica carrying active ingredients such as diethyltoluamide and menthol in the pores, Examples thereof include silicone powders such as cyclopentasiloxane dimethicone cross polymer and (dimethicone / vinyl dimethicone) cross polymer, resin powders such as polyamide, polyethylene, polystyrene, and polymethyl methacrylate, talc, and silica.

  The content of the powder is preferably 0.1% by mass or more, and more preferably 0.3% by mass or more in the stock solution. Further, the content of the powder is preferably 20% by mass or less, more preferably 15% by mass or less in the stock solution. When the content of the powder is less than 0.1% by mass, the desired effect expected by blending the powder tends not to be sufficiently obtained. On the other hand, when the content of the powder exceeds 20% by mass, the amount of powder that closes the injection passages such as the stem holes 76 and the injection holes 43a increases, and tends to be hardened and difficult to remove.

  The stock solution 5 may contain other active ingredients in addition to the occlusive ingredient. Other active ingredients include blood circulation promoters such as carpronium chloride and pepper tincture, vitamins such as tocopherol acetate and panthenol, keratolytic agents such as salicylic acid and resorcin, various extracts such as assembly extract and rosemary extract , Refreshing agents such as mint and menthol, antiseptics such as cetylpyridinium chloride and isopropylmethylphenol, anti-inflammatory agents such as dipotassium glycyrrhizinate and tranexamic acid, sweeteners such as xylitol, glycerin, 1,3-butylene glycol, hyaluron Moisturizers such as acids, perfumes, polysorbates, polyglycerol fatty acid esters, surfactants such as polyoxyethylene alkyl ethers, pH adjusters such as citric acid and lactic acid, chelating agents such as disodium edetate, parabens and phenoxye Preservatives such Nord, and various oil components are exemplified.

  The compressed gas is mainly present in the gas phase portion of the container body 2 in a state compressed to a predetermined pressure, and pressurizes the stock solution 5. Examples of the compressed gas include nitrogen gas, carbon dioxide gas, nitrous oxide, and compressed air.

  The internal pressure (equilibrium pressure (gauge pressure at 25 ° C.)) of the container body 2 after being filled with the compressed gas is preferably 0.2 MPa or more, and more preferably 0.3 MPa or more. Moreover, it is preferable that the internal pressure of the container main body 2 is 1.0 MPa or less, and it is more preferable that it is 0.8 MPa or less. When the internal pressure of the container main body 2 is less than 0.2 MPa, when the stock solution 5 decreases in the first operation state in which aerosol injection described later is performed, the pressure decreases and becomes too low, and the injection state tends to deteriorate. On the other hand, when the internal pressure of the container body exceeds 1.0 MPa, the injection of the stock solution 5 tends to be too strong in the first operation state in which aerosol injection is performed.

  The stock solution 5 can be prepared by adding or dissolving or emulsifying other active ingredients and additives selected according to the occlusive component, use or purpose, to the solvent.

  The method of filling the stock solution 5 and the compressed gas is not particularly limited, and the container body 2 is filled with the stock solution 5, and a gap is formed between the upper end of the opening of the container body 2 and the gasket 64 provided on the lower surface of the flange portion 61a. An example is a method in which the valve mechanism 3 is held so as to be secured, compressed gas is filled from the gap, the screw cap 62 is attached and sealed, and the injection member 4 is attached.

<Example of displacement of valve mechanism 3>
Next, the displacement of the valve mechanism 3 in the case of injecting the stock solution 5 using the injection product 1 having the above configuration will be described with reference to FIGS. 4 to 6 in addition to FIGS. FIG. 4 is a perspective view for explaining the operation of the switching member 9. FIG. 5 is a schematic cross-sectional view of the injection product 1 in which the valve mechanism 3 is displaced to the first operation state in which aerosol injection is performed. FIG. 6 is a schematic cross-sectional view of the injection product 1 that is displaced to the second operation state for removing the obstruction in the injection passage.

(Non-injection state)
First, in a non-injection state where the stock solution is not injected (a state before injection), as shown in FIGS. 2 and 3, the switching member 9 has a contact portion 92 fitted in the main body portion 42 c. Further, the switching member 9 is appropriately rotated so that the locking projection 95 comes into contact with the lower surface 41 c of the injection nozzle 41. In this state, the injection nozzle 41 cannot move downward. As a result, the valve mechanism 3 is maintained in a state where the internal stem 74, the external stem 75, and the piston member 72 are urged upward by the spring member 73. In this case, both the stem hole 76 and the air introduction hole 61e are closed. Therefore, the stock solution 5 is not jetted. Moreover, since the injection nozzle 41 cannot move downward, the stock solution is not accidentally injected.

(First operation state in which aerosol injection is performed)
On the other hand, as shown in FIG. 4, when the locking projection 95 of the switching member 9 is rotated to a position corresponding to the locking groove 41b, the valve mechanism 3 performs the first aerosol injection from the non-injection state. It can be easily displaced to the operating state. Specifically, as shown in FIG. 4, when the locking projection 95 is rotated to a position corresponding to the locking groove 41b, the user can operate the trigger portion 42i. As a result, when the spray nozzle 41 is pushed down as far as possible in the downward direction, the locking projection is locked in the locking groove. As a result, the inner stem 74 and the outer stem 75 are slid downward together. The inner stem 74 and the outer stem 75 are lowered by the depth of the locking groove 41b (the height of the locking projection 95). As described above, the depth of the locking groove 41b is slightly longer than the distance from the bottom of the contact groove 74h to the stem hole 76. Therefore, as shown in FIG. 5, the stem hole 76 is released from being closed by the outer peripheral wall of the lower inner sliding portion 77b by this displacement. On the other hand, the piston member 72 hardly moves, and the air introduction hole 61e remains closed. When the stem hole 76 is opened, the inside of the container body 2 communicates with the outside. At this time, since the inside of the container body 2 is pressurized by the compressed gas, a pressure difference is generated in the injection passage, and the stock solution 5 pressurized by the compressed gas lifts the ball 65b upward, and the first space. Supplied to S1. Further, the stock solution 5 is supplied to the external passage through the stem hole 76 and is injected from the injection hole 43a (see FIG. 1). As described above, in the first operation state, the stock solution 5 is continuously injected by the applied pressure of the compressed gas (aerosol injection).

  By the way, in the aerosol injection, since the stock solution 5 is jetted by the pressure applied by the compressed gas, the stock solution 5 is reduced by continuing use, and the volume of the gas phase portion of the container body 2 is increased. In this case, the pressure applied by the compressed gas is reduced. When the pressure applied by the compressed gas decreases, the stock solution 5 becomes difficult to be injected with a sufficient injection pressure. On the other hand, the stock solution 5 is likely to remain in the stem hole or the injection hole 43a after the injection, and the occlusive component contained in the stock solution 5 is dried over time, and the stem hole 76 or the injection hole 43a is easily closed. Such a problem is particularly remarkable when the occlusive component is a synthetic resin or the like that forms a film. In a situation in which the pressure applied by the compressed gas is reduced, the injection product 1 may become unusable because it is impossible to remove such blockage due to the occlusive component with aerosol injection. Therefore, the injection product 1 according to the present embodiment operates the valve mechanism 3 by displacing the valve mechanism 3 from the first operation state to the second operation state, thereby pressurizing the stock solution to a pressure higher than that of the aerosol injection, and entering the injection passage. It is characterized in that it is supplied and the occlusive component closing the injection passage is dissolved and pulverized and removed.

(Second operation state in which the operation for removing the obstruction is performed)
When the switching member 9 (see FIGS. 3 and 4) is removed, the valve mechanism 3 can be easily displaced from the first operation state to the second operation state. Specifically, as shown in FIG. 6, when the switching member 9 is removed, the user can further operate the trigger portion 42 i (see FIG. 1), and the injection nozzle 41 is in the first operation state. (See FIG. 5), it is pushed down as far as possible. At this time, the inner stem 74 and the outer stem 75 are integrally slid downward until the lower end of the skirt portion 75b comes into contact with the connecting ring 79, and then the inner stem 74, the outer stem 75, and the piston member 72 are moved. Together, it slides further downward. By this displacement, the air introduction hole 61 e is released from being closed by the outer peripheral wall of the outer sliding portion 78. Moreover, the volume of 1st space S1 reduces by this displacement. At this time, the ball 65b sinks into the recess 65a by the downward urging due to the decrease in the volume of the first space S1, and closes the liquid phase communication hole 61d. As a result, the stock solution (not shown) stored in the first space S1 is pressurized to a predetermined appropriate pressure (pressure higher than aerosol injection). The pressurized undiluted solution is supplied to the external passage through the stem hole 76, and obstructions in the external passage such as the stem hole and the injection hole 43a can be removed to eliminate clogging. As described above, in the second operation state, the stock solution can be supplied to the external passage by pressurizing the stock solution to a pressure higher than that in the first operation state by the piston member 72 regardless of the pressure of the compressed gas. A stable removal effect can be obtained.

  Thereafter, when the operation of the trigger part 42i by the user is stopped, the returning operation and the operation of taking the stock solution into the first space S1 are started. That is, the inner stem 74 and the outer stem 75 are integrally pushed up by the biasing force of the spring member 73, and the stem hole 76 is closed again by the inner peripheral wall of the lower inner sliding portion 77b. In addition, the air introduction hole 61 e is closed again by the outer peripheral wall of the outer sliding portion 78. The upward sliding of the inner stem 74, the piston member 72, and the outer stem 75 is restrained by the upper end of the upper outer sliding portion 78a coming into contact with the lower end of the pressing member 81.

  Thus, when the inner stem 74, the outer stem 75, and the piston member 72 are pushed up together by the spring member 73, the stem hole 76 is closed. Therefore, the ball 65b also moves upward, opens the communication portion between the liquid phase communication hole 61d and the first space S1, and a certain amount of the stock solution 5 is newly taken into the first space S1 from the container body 2.

  When the blocking component firmly blocks the injection passages such as the stem hole 76 and the injection hole 43a, the blockage may not be sufficiently opened by one pump operation. In this case, the user can repeatedly perform the pump operation to remove the clogging. Moreover, the injection product 1 of this embodiment can perform aerosol injection again by attaching the switching member 9, after an obstructive component is removed by pump operation.

  Here, when the internal stem 74, the piston member 72, and the external stem 75 are pushed up integrally by the spring member 73 in the return operation after the pump operation, a certain amount of the stock solution is taken into the first space S1. The volume of the gas phase portion in the container body 2 increases, and the internal pressure of the container body 2 decreases. In a state where the internal pressure of the container main body 2 is high (for example, when the injection product 1 is stored or in the initial stage of use), the closing pressure (surface contact pressure + internal pressure of the container main body) is sufficiently large to be equal to or greater than the amount of decrease in internal pressure, and the sealing material 82 The closed state is maintained. In this case, air is not introduced into the container body 2 from the outside. However, since the stock solution is pressurized by the compressed gas, the stock solution is taken into the first space S1. On the other hand, when the internal pressure of the container body 2 decreases due to use, the closing pressure of the sealing material 82 also decreases. When the amount of decrease in the internal pressure when the undiluted solution is taken into the first space S1 exceeds the reduced closing pressure, the surface contact between the sealing material 82 and the outer peripheral wall of the external stem 75 is released, and the air from the outside is It is introduced into the container body 2. Thereafter, the outer stem 75 is further urged upward by the spring member 73, so that the air introduction hole 61 e is closed by the upper outer sliding portion 78 a, and the air introduced into the container body 2 causes the container body 2 to The internal pressure is increased. As the internal pressure of the container body 2 increases, the closing pressure due to the sealing material 82 also increases. As a result, the sealing material 82 comes into surface contact with the outer peripheral wall of the outer stem 75 again, and shuts off the outside and the second space S2. Through the above operation, in the injection product 1 of the present embodiment, air can be appropriately introduced into the container body 2 from the outside.

  As described above, the injection product 1 of the present embodiment includes the valve mechanism 3 that is displaced into the first operation state for performing the aerosol injection and the second operation state for performing the obstruction removal operation. Therefore, even if the injection product 1 is a case where the obstructive component is blocked by the stem hole or the injection hole 43a by performing aerosol injection, for example, by switching to the pump operation, the stock solution is brought to a pressure higher than that of the aerosol injection. The blockage can be removed by applying pressure to the injection passage. Therefore, the injection product 1 can eliminate the blockage of the obstructive component in the stem hole and the injection hole 43a by performing such a pump operation without using a raw material with low safety to the fire, Clogging can be removed.

(Second Embodiment)
An injection product according to an embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a schematic cross-sectional view of the injection product 1a of the present embodiment. The injection product 1a shown in FIG. 7 has the same configuration as the injection product 1 (see FIG. 1) described above in the first embodiment, except that the shape of the housing body 66 is different. For this reason, the same reference numerals are assigned to overlapping components, and the description thereof is omitted as appropriate.

  As shown in FIG. 7, the housing main body 66 has an annular groove (annular groove 66 a) formed on the outer side in the radial direction further from the position where the lower end of the spring member 73 is attached. A coil spring 66b is dropped into the annular groove 66a. The coil spring 66b can be easily moved in and out of the annular groove 66a by, for example, appropriately shaking the injection product 1a in the vertical direction or the like.

  The injection product 1a of the present embodiment is particularly preferably used when the occlusive component contained in the stock solution 5 is a powder that easily causes caking. In other words, in the case of the stock solution 5 in which the powder 5 a is dispersed, the powder 5 a may settle due to its own weight when allowed to stand after use, and may cake in the housing body 66. In the case of the above-described sprayed product 1 (see FIG. 1) in the first embodiment, such powder 5a is likely to settle and caking so as to gather on the balls 65b in the recesses 65. And since the inside of 1st space S1 is a liquid-tight state by the undiluted | stock solution 5, even if it shakes upside down, the powder 5a is hard to be re-dispersed. As a result, the caked powder 5a may be sprayed in a large lump state without being refined, and the stem hole 76 and the spray hole 43a are likely to be blocked.

  However, in the present embodiment, at least a part of the powder 5a taken into the first space S1 settles in the annular groove 66a. The powder 5a settled in the annular groove 66a is stirred and re-dispersed easily by letting the coil spring 66b protrude from the annular groove 66a. Moreover, the liquid flow is generated by the stirring effect of the coil spring 66b, and the powder settled in the recess 65 can be dispersed. As a result, the spray product 1a of the present embodiment can be sprayed in a state where the powder is dispersed even if the stock solution 5 contains the powder 5a. Even if the injection passage is clogged with powder during aerosol injection, the powder is removed by a strong liquid flow by switching to pump operation and pressurizing the stock solution 5 to a pressure higher than that of aerosol injection and supplying it to the injection passage. can do.

  The height of the coil spring 66b is not particularly limited as long as it can move up and down when the container is shaken. The height of the coil spring 66b may be, for example, approximately the same as the depth of the annular groove 66a, or may be greater than the depth of the annular groove 66a. Further, instead of the coil spring 66b, another member that can appear and disappear from the annular groove 66a may be employed. Examples of such other members include a cylindrical ring-shaped member.

  As mentioned above, although embodiment of this invention was described with reference to drawings, the following modified embodiment can be employ | adopted for the injection product of this invention, for example.

  (1) In the said embodiment, it illustrated about the injection product provided with a switching member. Alternatively, the present invention may be an injection product that does not include a switching member. That is, the operation to switch the valve mechanism from the non-injection state to the first operation state in which aerosol injection is performed and the operation to switch from the first operation state to the second operation state in which pump operation is performed are both performed by the injection member (injection). This is done by adjusting the sliding distance of the stem connected to the nozzle. Therefore, the user may displace the valve mechanism by adjusting the moving distance of the injection nozzle and the sliding distance of the stem by appropriately operating the trigger portion. According to such a modified embodiment, the switching member is not necessary and the number of parts is reduced, which is preferable.

  (2) In the said embodiment, the case where the latching protrusion formed in the upper surface of the contact part was engaged with the latching groove formed in the lower surface of an injection nozzle was illustrated. Instead of this, a locking groove may be formed on the upper surface of the contact portion, and a locking projection may be formed on the lower surface of one end of the injection nozzle. Moreover, in the said embodiment, by rotating a switching member, when arrange | positioning a latching protrusion in the position corresponding to a latching groove, and when arranging a latching groove in the position which does not correspond to a latching groove It illustrated about the case where the distance which an injection nozzle can move below is adjusted by switching. Instead of this, the present invention may employ other structures that can adjust the moving distance of the injection nozzle other than the combination of the locking protrusion and the locking groove. As such a structure, for example, a protrusion extending in an oblique direction may be formed on the side peripheral surface of the contact portion, and a groove having a shape complementary to the protrusion may be formed at one end of the injection member. .

  (3) In the said embodiment, when performing pump operation, it illustrated about the aspect which removes a switching member from the main-body part of an injection member. In the present invention, instead of this, the structure of the switching member may be appropriately changed to a structure in which the pump operation can be performed with the switching member attached to the main body. Such a structure includes a two-stage engagement protrusion with different heights on the contact portion and a two-stage engagement with different depths engaged with the two-stage engagement protrusion on the lower surface of one end of the injection nozzle. Forming a joint groove. According to such a combination of the engagement protrusion and the engagement groove, for example, by rotating the switching member so that the first-stage engagement protrusion is disposed at a position corresponding to the first-stage groove, The moving distance and sliding distance of the injection nozzle and the stem can be adjusted so that the mechanism can be displaced from the non-injection state to the first operation state. Further, from the state where the first-stage engagement protrusion is engaged with the first-stage groove, the switching member is further rotated so that the second-stage engagement protrusion is engaged with the second-stage groove. By disposing, the moving distance and sliding distance of the injection nozzle and the stem can be adjusted so that the valve mechanism can be displaced from the first operation state to the second operation state.

  (4) In the above embodiment, the case where the nozzle tip provided with the mechanical breakup mechanism is attached to the tip nozzle of the injection member is illustrated. Instead of this, a general-purpose tip nozzle that does not include a mechanical breakup mechanism may be used in the present invention.

DESCRIPTION OF SYMBOLS 1 Injection product 2 Container main body 21 Main body part 22 Neck part 23 Male screw 3 Valve mechanism 4 Injection member 41 Injection nozzle 41a Rotating shaft 41b Locking groove 41c Lower surface 41d Nozzle passage 42 Operation part 42a Lever support part 42b Lever 42c Main part 42d Support Arm 42e Annular groove 42f Engagement groove 42g Rotating shaft 42h Body part 42i Trigger part 43 Tip nozzle 43a Injection hole 43b Nozzle tip 46 Guard member 46a Wall part 5 Stock solution 5a Powder 6 Housing 61, 66 Housing body 61a Flange part 61b Small diameter part 61c Connection groove 61d Liquid phase communication hole 61e Air introduction hole 62 Screw cap 62a Top plate 62b Side peripheral part 62c Mounting part 62d Female screw 62e Cover part 62f Engagement part 63 Tube 64 Gasket 65 Ball valve mechanism 65a Concave part 6 5b Ball 66a Annular groove 66b Coil spring 7 Valve body 71 Stem 72 Piston member 73 Spring member 74 Internal stem 74a Gutter part 74b Circular part 74c Connection groove 74d Internal stem passage 74e Cylindrical part 74f Reduced diameter part 74g Small diameter part 74h Contact Part 75 External stem 75a Internal stem passage 75b Skirt part 75c Reduced diameter part 75d Cylindrical part 76 Stem hole 77 Inner sliding part 77a Upper inner sliding part 77b Lower inner sliding part 78 Outer sliding part 78a Upper outer sliding Portion 78b Lower outer sliding portion 79 Connecting ring 8 Check valve mechanism 81 Holding member 82 Sealing material 9 Switching member 90 Body portion 91 Mounting portion 91a Center hole 92 Abutting portion 92a Upper surface 92b Center hole 93 Operation portion 94 Notch portion 95 Engagement Stop projection S1 1st space S2 2nd space

Claims (6)

A container body filled with contents containing a stock solution and compressed gas;
A valve mechanism attached to the container body;
An injection hole for injecting the stock solution, and an injection member attached to the valve mechanism;
The valve mechanism and the injection member include an injection passage through which the stock solution taken in from the container body and injected from the injection hole passes.
The stock solution includes an occlusive component capable of occluding the injection passage,
The valve mechanism is
A cylindrical housing, and a valve body including a stem slidably accommodated in the vertical direction in the housing,
A first operating state for performing aerosol injection, in which the stock solution is pressurized and injected with the compressed gas;
Displaced to a second operating state in which the stock solution is pressurized to a pressure higher than the aerosol injection and supplied to the injection passage ;
An injection product comprising a valve mechanism for taking in the stock solution in one direction from the container body into the housing .   The injection product according to claim 1, wherein the occlusive component is a synthetic resin capable of forming a film and occluding the injection passage.   The said injection member is an injection product of Claim 1 or 2 provided with the front-end | tip nozzle which has a mechanical breakup mechanism.   The injection product according to any one of claims 1 to 3, further comprising a switching member for displacing the valve mechanism from the first operation state to the second operation state. Before SL switching member, by adjusting the sliding distance of said stem, said displacing the valve mechanism and the second operating state to the first operating state, the injection product according to claim 4, wherein. A container body filled with contents containing a stock solution and compressed gas;
A valve mechanism attached to the container body;
An injection hole for injecting the stock solution, and an injection member attached to the valve mechanism;
The valve mechanism and the injection member include an injection passage through which the stock solution taken in from the container body and injected from the injection hole passes.
The stock solution includes an occlusive component capable of occluding the injection passage,
The valve mechanism is
A first operating state for performing aerosol injection, in which the stock solution is pressurized and injected with the compressed gas;
Displaced to a second operating state in which the stock solution is pressurized to a pressure higher than the aerosol injection and supplied to the injection passage;
The valve mechanism includes a tubular housing and a valve body including a stem that is slidably accommodated in the vertical direction in the housing.
The stem is composed of an inner stem having a stem hole, and an outer stem that is attached to an upper portion of the inner stem and protrudes and disappears from the housing.
The valve body divides the interior of the housing into a first space through which the stock solution taken from the container body passes and a second space through which air introduced from the outside passes, and cooperates with the stem. A piston member that slides in the vertical direction in the housing,
The injection passage is composed of an internal passage through which the stock solution taken from the container body passes to reach the stem hole, and an external passage through which the stock solution passes from the stem hole to the injection hole,
The housing has an air introduction hole that connects the second space and the internal space of the container body,
The valve mechanism is
Closing the stem hole and the air introduction hole by the piston member in a non-injecting state in which the stock solution is not injected,
When the piston member is displaced from the non-injection state to the first operation state, the stem hole is opened by sliding the stem downward while maintaining the air introduction hole closed by the piston member.
Wherein when it is displaced from said first operating state the second operating state, the piston member is slid downward to open the air inlet holes, jetting product.

Images