JP2015067334A - Coating container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating container in which a back flow of a coated content fluid into the container is prevented at the time of release of squeezing to thereby maintain the content liquid in a sanitary state.SOLUTION: In a coating container, an inside plug 10 which is mounted to a mouth 54 of a container body 50 and which discharges a content liquid by a squeeze of the container body 50 and applies the discharged content liquid is provided with: a discharge hole 32 which forms one end of a discharge passage for discharging the content liquid from the container body 50; a rod-like application valve 43 which penetrates the discharge hole 32, has a content liquid coated surface 47 formed on a tip thereof, opens the discharge passage at the time of squeezing, and closes the discharge passage at the time of release of squeezing; an introduction passage for introducing outside air into the container body 50; and an outside air introduction valve 42 which closes the introduction passage at the time of squeezing and opens the introduction passage at the time of release of squeezing.

Description

  The present invention relates to a coating container that is attached to a mouth portion of a container body and discharges a content liquid by a squeeze of the container body, and includes an inner plug for applying the discharged content liquid. It is intended to keep the contents liquid hygienic by preventing backflow.

  Conventionally, as an application container provided with an inside stopper for applying a medicine, for example, those described in Patent Documents 1 and 2 are known. In Patent Document 1, a flow control valve is formed in an outflow cylinder provided in an inner stopper, so that an appropriate amount of content liquid can be discharged from the tip of the outflow cylinder just by inverting the container, and the tip of the outflow cylinder is used as a target site. It can be applied by pressing.

  Further, in Patent Document 2, a cylinder member and a piston-like nozzle member that can slide in the cylinder member are provided in the inner plug, and when the tip of the cylinder member is pressed against the target part, the nozzle member is located on the container body side. To pressurize the inside of the container, and by the pressurization, the content liquid is discharged through the discharge channel formed in the nozzle member, and the discharged content liquid can be applied to the target site at the tip of the nozzle member. Yes.

Japanese Patent Laid-Open No. 11-157567 Japanese Utility Model Publication No. 3-69658

  However, when the conventional application container as described above is a squeeze-type container that discharges the content liquid by squeezing the container body, the applied content liquid can be prevented from flowing back into the container when the squeeze is released. Therefore, the liquid contents could not be kept hygienic.

  The present invention has been developed to solve the above-described problems, and can prevent the applied content liquid from flowing back into the container when squeezing is released, thereby maintaining the content liquid in a sanitary manner. The purpose is to provide a container.

That is, the gist configuration of the present invention is as follows.
1. In a coating container, which is attached to a container main body and a mouth of the container main body and discharges the content liquid by squeezing the container main body, and an inner plug for applying the discharged content liquid, the inner plug is
A discharge hole forming one end of a discharge flow path for discharging the content liquid from the container body;
A stick-shaped application valve that penetrates the discharge hole, has a coating surface for the content liquid formed at the tip, opens the discharge channel when squeezing, and blocks the discharge channel when squeezing is released,
An introduction path for introducing outside air into the container body;
An application container comprising: an outside air introduction valve that shuts off the introduction path when squeezing and opens the introduction path when squeezing is released.

2. The inner plug further includes an inflow hole forming the other end of the discharge flow path,
The application valve is slidably arranged in the inside and outside of the discharge hole and is urged toward the inside of the discharge hole,
The inflow hole is closed at the rear end of the application valve by the urging, and the application valve is squeezed against the urging to slide the application valve toward the outside of the discharge hole. The coating container according to 1 above, wherein a sealing surface is formed.

3. The inner plug is
An outer cap attached to the mouth of the container body and having the discharge hole and an outside air introduction hole forming one end of the introduction path;
An inner cap that is attached to the mouth of the container body and has the inflow hole and a communication hole that forms the other end of the introduction path;
A valve body that is held by the outer cap and the inner cap and has the application valve and the outside air introduction valve;
The valve body is sandwiched between the inner cap and the outer cap, and a space between the inner cap and the outer cap is divided into an inner peripheral side and an outer peripheral side, and the external air introduction valve is formed on the outer peripheral surface. 2. The coating container according to 2 above, further comprising an annular wall and an elastic arm piece connecting the inner peripheral surface of the annular wall and the outer peripheral surface of the application valve.

  According to the present invention, by squeezing the container main body, the introduction path is blocked by the outside air introduction valve and the discharge flow path is opened to the application valve, so that the liquid content can be discharged from the discharge hole. The content liquid can be applied to the target site using the application surface formed at the tip of the application valve. In addition, when releasing the squeeze of the container body, the introduction path is opened to the outside air introduction valve to introduce the outside air into the container body, and the discharge flow path is blocked by the application valve so that the liquid content flows back into the container body. Can be prevented.

  Therefore, according to the present invention, it is possible to provide an application container that can prevent the applied content liquid from flowing back into the container when squeezing is released and keep the content liquid hygienic.

It is a side view which shows the application container which concerns on one Embodiment of this invention. FIG. 2 is a half sectional side view showing a main part of the application container of FIG. 1. FIG. 2 is a half cross-sectional side view showing the main part of the application container of FIG. FIG. 4 is a half sectional side view showing a main part of the application container of FIG. 3 in a state when squeezing is released. It is a half cross-sectional side view which shows the principal part of the application container which concerns on other embodiment of this invention.

Hereinafter, with reference to FIGS. 1-4, the application container which concerns on one Embodiment of this invention is illustrated and demonstrated in detail.
In the present specification, the vertical direction is based on the state where the container is raised, the upper side means the upper side in FIG. 1, for example, and the lower side means the lower side in FIG. 1, for example. And

  As shown in FIGS. 1 and 2, the application container 1 according to this embodiment includes an inner stopper 10. In this embodiment, the inner plug 10 includes an inner cap 20, an outer cap 30, and a valve body 40. The application container 1 includes a container body 50 and an overcap 60.

  In this embodiment, the container body 50 has a bottle shape formed by connecting the bottom 51, the body 52, the shoulder 53, and the mouth 54 in this order. A male screw 54 a is formed on the outer peripheral surface of the mouth portion 54.

  The inner cap 20 is fitted in the mouth portion 54. The inner cap 20 has a top wall 21 with which the lower surface of the outer peripheral edge comes into contact with the upper end edge of the mouth portion 54. A cylindrical wall 22 that protrudes upward is provided around the axis O on the upper surface of the outer peripheral edge of the top wall 21. On the lower surface of the top surface wall 21, a seal cylinder 23 that is in contact with the inner peripheral surface of the mouth portion 54 is suspended. At least one communication hole 24 penetrating the top wall 21 is formed on the inner peripheral side of the seal cylinder 23. An annular fitting recess 25 formed on the upper surface of the top wall 21 is disposed on the inner peripheral side of the communication hole 24. A guide tube 26 erected from the top wall 21 is provided around the axis O on the inner peripheral side of the fitting recess 25. An inflow hole 27 centering on the axis O is provided at the center of the top wall 21. On the upper surface of the region connecting the lower end of the guide tube 26 and the inflow hole 27, an inner cap side seal surface 28 having a downward truncated cone shape is formed.

  The outer cap 30 has an annular outer wall 31 that is attached to the mouth portion 54 by a female screw 31 a that is screwed into the male screw 54 a of the mouth portion 54. A space S is formed between the upper end of the outer wall 31 and the top wall 21 of the inner cap 20, and a ceiling wall 33 that forms a discharge hole 32 is provided above the inflow hole 27 of the inner cap 20. Yes. The top wall 33 includes a flange 34 that comes into contact with the upper end surface of the cylindrical wall 22 of the inner cap 20, an annular protrusion 35 that protrudes upward from the inner peripheral edge of the flange 34, and an axis O that is connected to the inner peripheral side surface of the annular protrusion 35. And a frustoconical outflow tube 36 centering on the center. The annular protrusion 35 is formed with at least one outside air introduction hole 37 that penetrates the annular protrusion 35. The upper end of the outside air introduction hole 37 opens toward the radially outer side of the annular protrusion 35. A fitting cylinder 38 is suspended from the outer periphery of the lower end of the outflow cylinder 36. Further, the discharge hole 32 is formed by the inner peripheral surface of the upper end of the outflow tube 36. An annular holding protrusion 39 surrounding the discharge hole 32 is provided around the axis O at the upper end of the outflow cylinder 36. The inner peripheral surface of the holding protrusion 39 has a curved shape that protrudes downward.

The valve body 40 has an annular wall 41 whose lower end edge is fitted to the fitting recess 25 of the inner cap 20 and whose upper end edge is fitted to the fitting cylinder 38 of the outer cap 30. The annular wall 41 includes a space S formed between the top wall 21 of the inner cap 20 and the top wall 33 of the outer cap 30, a space S ₁ on the inner peripheral side of the annular wall 41, and an outer peripheral side of the annular wall 41. thereby divided into a space S ₂ of seals between the spaces S ₁ and the space S _2. An outside air introduction valve 42 is connected to the outer peripheral surface of the annular wall 41. The upper end of the outer peripheral edge of the external air introduction valve 42 is in contact with the lower surface of the inner peripheral edge of the flange 34 of the outer cap 30.

  An elastic arm piece 44 is connected to the inner peripheral surface of the annular wall 41 and connects the inner peripheral surface to the outer peripheral surface of the rod-shaped application valve 43 that is disposed on the inner peripheral side of the annular wall 41 and penetrates the discharge hole 32. It is installed. The elastic arm piece 44 is inclined upward from the outer peripheral side toward the inner peripheral side. The application valve 43 is slidable in the inner and outer directions (that is, the vertical direction) of the discharge hole 32 and is urged by the elastic arm piece 44 in the inner direction (that is, the lower direction) of the discharge hole 32. In the outer peripheral surface of the application valve 43, four vertical grooves 45 extending in the vertical direction are provided at equal intervals around the axis O in this example. The upper end portion 45a of the vertical groove 45 is formed in a tapered shape so that the groove becomes shallower upward. The upper end of the upper end portion 45 a of the vertical groove 45 is located in the discharge hole 32. A sealing surface 46 is formed at the rear end portion (that is, the lower end portion) of the application valve 43 so as to come into liquid tight contact with the inner cap side sealing surface 28. A hemispherical application surface 47 is formed at the distal end (that is, the upper end) of the application valve 43.

  The overcap 60 is configured to be attached to the container body 50 while covering the inner stopper 10 and pressing the application surface 47 of the application valve 43 of the valve body 40. That is, the overcap 60 is connected to the outer cylinder 62 provided around the lower end edge of the inner peripheral surface of the locking claw 61 that engages the lower end edge of the outer wall 31 of the outer cap 30, and the upper end edge of the outer cylinder 62. The upper wall 63 has a substantially frustoconical shape, and the top wall 65 is connected to the upper edge of the upper wall 63 and has a substantially hemispherical recess 64 in contact with the application surface 47 on the lower surface. An inner cylinder 66 that contacts the outer peripheral surface of the holding projection 39 of the outer cap 30 and an intermediate cylinder 67 that contacts the outer peripheral surface of the annular protrusion 35 of the outer cap 30 are suspended from the lower surface of the upper wall 63.

  According to such a configuration, the overcap 60 of the application container 1 is removed, and the body 52 of the container body 50 is squeezed in a state where the container is erected or inverted, as shown in FIG. Is formed by the outside air introduction hole 37 and the other end is formed by the communication hole 24 and is blocked by the outside air introduction valve 42, and the application valve 43 is slid upward against the urging of the elastic arm piece 44. Thus, the discharge passage for the content liquid, which has one end formed by the discharge hole 32 and the other end formed by the inflow hole 27, can be opened. Therefore, the content liquid can reach the application surface 47 formed at the tip of the application valve 43 along the path indicated by the arrow in FIG. 3 and can be held on the application surface 47 by surface tension.

  When the squeeze is released, as shown in FIG. 4, the application valve 43 slides downward by the urging force of the elastic arm piece 44, and the content liquid is discharged by the seal surface 46 formed at the rear end portion of the application valve 43. While the flow path is shut off, the outside air introduction valve 42 opens the introduction path, and the outside air can be introduced into the container body 50 through the introduction path according to the path indicated by the arrow in FIG. At this time, since the outflow cylinder 36 of the outer cap 30 is provided with the holding protrusion 39, the discharged content liquid can be held on the inner peripheral side of the holding protrusion 39. An amount of content liquid can be retained.

  In this state, the content liquid can be applied by bringing the application surface 47 into contact with the target site. At that time, the content liquid discharge passage is blocked by the seal surface 46 formed at the rear end of the application valve 43, thereby preventing the applied content liquid from flowing back into the container body 50. Thus, the content liquid can be kept hygienic. Further, when the content liquid is applied, the content liquid is not discharged from the inside of the container body 50, so that it is possible to prevent the content liquid such as a medicine from being applied accidentally to a place other than the affected part. Furthermore, when the content liquid is applied, the tip of the application valve 43 is pressed against the target site, so that the seal surface 46 formed at the rear end of the application valve 43 is placed on the inner cap side seal surface 28 of the inner cap 20. By being pressed, the space between the seal surface 46 and the inner cap side seal surface 28 is surely sealed. Therefore, the back flow of the applied content liquid can be more reliably prevented, and the content liquid does not leak from the container body 50 during application. It is possible to prevent application to a place by mistake.

  In addition, since the upper end of the outside air introduction hole 37 opens toward the radially outer side of the annular protrusion 35, the top wall 33 existing in the axial direction (upward) of the outside air introduction hole 37 causes the outside air during application of the content liquid. The content liquid can be prevented from entering the container from the introduction hole 37. Moreover, according to this embodiment, the structure can be simplified by comprising the inner stopper 10 by three members, the inner cap 20, the outer cap 30, and the valve body 40. FIG.

  Furthermore, according to this embodiment, since the application surface 47 of the application valve 43 is hemispherical, the portion that contacts the target portion of the application surface 47 when applying the content liquid (that is, the upper end of the hemispherical portion). And the discharge hole 32 can be made large. Therefore, it is possible to prevent the applied content liquid from entering the inner plug 10 through the gap between the outer peripheral surface of the application valve 43 and the discharge hole 32. In addition, since the application surface 47 is hemispherical, an application part having a large surface area can be formed efficiently, so that a large amount of content liquid can be efficiently held. Further, since the application surface 47 has a hemispherical shape, it is possible to avoid giving a stimulus to a contact portion such as skin during application.

Next, with reference to FIG. 5, the application container which concerns on other embodiment of this invention is illustrated and demonstrated.
The application container 1 ′ of this embodiment is different from the embodiment described above with reference to FIGS. 1 to 4 in that the shape of the inner cap 20, the shape of the outer cap 30, and the shape of the elastic arm piece 44 of the valve body 40 are the same. Other than that, the configuration is the same.

  In the present embodiment, the inner cap 20 has an outer peripheral wall 29 that is suspended from the outer peripheral edge of the top wall 21, and the inner peripheral surface of the outer peripheral wall 29 is screwed to the male screw 54 a of the mouth 54 of the container body 50. A mating female screw 29a is formed. An upper rotation prevention groove 29b for preventing the rotation of the outer cap 30 is formed in the upper part of the outer peripheral surface of the outer peripheral wall 29. The rotation prevention groove 29b is formed in the upper part of the inner peripheral surface of the outer wall 31 of the outer cap 30. The protruding anti-rotation protrusion 31b is fitted.

  A locking claw 31 c that engages with the lower edge of the outer peripheral wall 29 of the inner cap 20 is formed at the lower edge of the outer wall 31 of the outer cap 30. The top wall 33 of the outer cap 30 has an inner fitting cylinder 38 a that contacts the inner peripheral surface of the upper end of the annular wall 41 of the valve body 40 on the inner circumference side of the fitting cylinder 38.

  In this embodiment, the elastic arm piece 44 of the valve body 40 connects the inner peripheral surface of the annular wall 41 and the outer peripheral surface of the application valve 43 horizontally at three points around the axis O, so that the application valve 43 is connected. It functions as a so-called three-point valve.

In the present embodiment, the upper end of the communication hole 24 is positioned on the outer peripheral side of the annular wall 41 of the valve body 40, and the lower end of the communication hole 24 is positioned on the inner peripheral side of the annular wall 41 of the valve body 40.
According to such a configuration, the same effect as in the case of the embodiment described above with reference to FIGS. 1 to 4 can be obtained.

  The above description shows only one embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, although the application surface 47 of the application valve 43 has been described as having a hemispherical shape, the application surface 47 is not necessarily limited to such a shape, and may be a planar shape, for example.

1, 1 'coating container 10, 10' inner cap 20 inner cap 21 top wall 22 cylinder wall 23 seal cylinder 24 communication hole 25 fitting recess 26 guide cylinder 27 inflow hole 28 inner cap side seal surface 29 outer peripheral wall 29a female screw 29b rotation Prevention groove 30 Outer cap 31 Outer wall 31a Female screw 31b Anti-rotation projection 31c Locking claw 32 Discharge hole 33 Top wall 34 Flange 35 Annular projection 36 Outflow cylinder 37 Outside air introduction hole 38 Fitting cylinder 38a Inner fitting cylinder 39 Holding protrusion 40 Valve body 41 annular wall 42 outside air introduction valve 43 application valve 44 elastic arm piece 45 vertical groove 45a upper end portion of vertical groove 46 seal surface 47 application surface 50 container body 51 bottom portion 52 trunk portion 53 shoulder portion 54 mouth portion 54a male screw 60 overcap 61 pawls 62 outer cylinder 63 upper wall 64 recess 65 top wall 66 inner cylinder 67 the inner cylinder O axis S, _{S 1} S ₂ space

Claims (3)

In a coating container, which is attached to a container main body and a mouth of the container main body and discharges the content liquid by squeezing the container main body, and an inner plug for applying the discharged content liquid, the inner plug is
A discharge hole forming one end of a discharge flow path for discharging the content liquid from the container body;
A stick-shaped application valve that penetrates the discharge hole, has a coating surface for the content liquid formed at the tip, opens the discharge channel when squeezing, and blocks the discharge channel when squeezing is released,
An introduction path for introducing outside air into the container body;
An application container comprising: an outside air introduction valve that shuts off the introduction path when squeezing and opens the introduction path when squeezing is released. The inner plug further includes an inflow hole forming the other end of the discharge flow path,
The application valve is slidably arranged in the inside and outside of the discharge hole and is urged toward the inside of the discharge hole,
The inflow hole is closed at the rear end of the application valve by the urging, and the application valve is squeezed against the urging to slide the application valve toward the outside of the discharge hole. The coating container according to claim 1, wherein a sealing surface is formed. The inner plug is
An outer cap attached to the mouth of the container body and having the discharge hole and an outside air introduction hole forming one end of the introduction path;
An inner cap that is attached to the mouth of the container body and has the inflow hole and a communication hole that forms the other end of the introduction path;
A valve body that is held by the outer cap and the inner cap and has the application valve and the outside air introduction valve;
The valve body is sandwiched between the inner cap and the outer cap, and a space between the inner cap and the outer cap is divided into an inner peripheral side and an outer peripheral side, and the external air introduction valve is formed on the outer peripheral surface. The coating container according to claim 2, further comprising an annular wall and an elastic arm piece connecting the inner peripheral surface of the annular wall and the outer peripheral surface of the application valve.

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