JP5242494B2 - Container with inner stopper - Google Patents

Description

  The present invention relates to a container filled with a chemical solution such as eye drops, and more particularly, to a container with an inner plug in which an inner plug having a dropping function is incorporated.

  A container filled with a chemical solution such as eye drops incorporates an inner plug having a dropping path along the axis so that one to several drops of the chemical solution can be dropped at a time.

  Normally, when this type of container is used as an eye drop container, it is common to drop the chemical solution with the inner plug portion of the container away from the eye by a predetermined distance when instilled, but depending on the user, In some cases, the tip of the stopper is attached directly to the eyes (including the corners of the eyes and the lid). By the way, such eye drops are attached to the tip of the inner plug when a so-called vacuum action of the container occurs, in which outside air flows back through the dropping path of the inner plug as the chemical solution is discharged and is sucked into the container. Foreign matter such as spears and bacteria may flow into the container together with outside air and contaminate the chemical solution.

  In order to solve this problem, Patent Document 1 discloses an eye drop container in which a back flow prevention valve is provided at an eye drop administration port in order to prevent back flow of a chemical solution or outside air.

Japanese Utility Model Publication No. 01-37242

  However, in the eye drop container described in Patent Document 1, the position where the drug solution is dropped and the position where the outside air is sucked are the same eye drop administration port, and even if a backflow prevention valve is provided in the eye drop administration port, the container enters the container. Because the air was replaced, it was necessary to allow the back flow of the chemical solution, and it was easy to suck foreign matter into the container.

  Therefore, an object of the present invention is to provide a container with an inner stopper capable of avoiding contamination of foreign matters and germs in the container even when the inner stopper is brought into contact with an object to be dropped. .

The present invention has been made in order to solve the above-mentioned problems, and in the container with an inner stopper of the present invention, an inner stopper that allows dripping of contents from the mouth is incorporated in the mouth of the container. A container with an inner stopper, wherein the inner stopper has an opening for pouring the contents in the container and is fitted and held in the mouth of the container; A stopper body that is coaxially retained with the shaft center of the container, and a body portion that forms a communication path that communicates between the inside and the outside of the container with the opening body, And an enlarged head having an outer diameter larger than the opening diameter of the opening, and the main body of the inner plug has a lip portion that forms the opening while protruding toward the inner peripheral side. A body portion of the plug body of the inner plug has a base portion having an outer diameter larger than an inner diameter of the lip portion on the base end side; Any mutual engagement surfaces of the serial base is inclined proximally toward the radially outer side, the base of the plug body is being formed into a hollow shape opening on the base end side end surface It is a feature.

  In such a container with a stopper, if the user tilts the container filled with the contents (for example, a chemical solution) and applies pressure from outside the container with the enlarged head directed toward the subject to be dropped, As the pressure rises, the contents are poured out of the container through a communication path formed between the opening of the main body and the body of the stopper. At this time, the content poured out from the communication path travels along the surface of the head extension by its own weight, and is dropped from the dropping position (where the contents hang down) away from the outlet of the communication path onto the dropping target. On the other hand, after the contents are discharged, the outside air is sucked into the container through the communication path by the vacuum action of the container, and the replacement with the outside air is performed.

  Therefore, according to the container with an inner stopper of the present invention, the dropping position where the contents are actually dropped is separated from the communication path serving as a replacement port for the outside air under the vacuum action of the container, and the communication path is the dropping position. Since the contents do not flow back into the container when the vacuum action of the container occurs, even if the enlarged head is brought into contact with the object to be dropped during dripping, foreign matter etc. Can be prevented from entering the container.

  In the case of the container with an inner stopper according to the present invention, it is preferable that the communication path is constituted by at least one groove formed on at least one of the inner peripheral surface of the opening and the outer peripheral surface of the trunk.

  Further, in the container with an inner stopper of the present invention, the stopper is slidable in the vertical direction along the axis of the main body, and when the stopper is at the lowest lowered position, the communication path is It is preferably closed by an enlarged head. Here, the “vertical direction” is a direction along the axis of the main body, with the bottom side of the container being the downward direction and the mouth side of the container being the upward direction.

  Moreover, in the container with an inner stopper of the present invention, the container covers the inner stopper and is fixed to the mouth of the container, and the stopper is moved to the lowest lowered position while being fixed to the mouth of the container. It is preferable to further include a sealing plug to be pressed.

  According to the container with an inner stopper according to the present invention, there is provided a container with an inner stopper capable of avoiding the mixing of foreign matter and germs into the container even when the inner stopper is brought into contact with the object to be dropped. It becomes possible.

It is a perspective view of the container with an inside stopper concerning an embodiment of this invention. It is sectional drawing which follows the axial center which showed the inner stopper in FIG. 1 with the opening part of the container. It is a perspective view which shows the plug body applied to the inside plug in FIG. It is principal part sectional drawing of the container with an inside stopper shown in FIG. 1, The left half figure shows the state which attached the sealing stopper, and the right half figure shows the use condition. It is sectional drawing which shows the use condition of the container with an inner stopper shown in FIG. 1, Comprising: The time of dripping of a chemical | medical solution is shown. It is sectional drawing which shows the use condition of the container with an inside stopper shown in FIG. 1, Comprising: The time at the time of air substitution is shown.

  Hereinafter, a vibration isolator according to an embodiment of the present invention will be described in detail with reference to the drawings. Here, FIG. 1 is a perspective view of a container with an inner stopper according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view along the axial center showing the inner stopper in FIG. 1 together with the mouth of the container, 3 is a perspective view showing a plug body applied to the inner plug in FIG. 1, FIG. 4 is a cross-sectional view of the main part of the container with the inner plug shown in FIG. 1, and the left half is attached with a sealing plug. FIG. 5 is a cross-sectional view showing the state of use of the container with an inner stopper shown in FIG. 1, and shows the time when the chemical solution is dripped. FIG. 6 is a cross-sectional view showing a use state of the container with an inner stopper shown in FIG. 1, and shows the time of air replacement.

  As shown in FIG. 1, the container 1 with an inner stopper includes a container 2 that can be filled with, for example, a chemical solution as contents, and an inner plug 3 that is attached to the mouth 2 a of the container 2.

  The container 2 is formed of a flexible plastic material, and the internal chemical liquid can be poured out by pressing the container body 2b with fingers or the like and elastically deforming it.

  As shown in FIG. 2, the inner plug 3 is arranged coaxially with the axial center S of the main body 4 on the inner peripheral side of the main body 4 and the cylindrical main body 4 fitted and held in the mouth 2 a of the container 2. The plug body 5 is made of. A lip portion 7 is formed on the distal end side of the main body 4 so as to project to the inner peripheral side while forming an opening 6 for pouring the contents in the container 2. A flange portion 4 a that engages with the mouth portion 2 a of the container 2 is formed on the outer periphery of the main body 4. On the other hand, the plug body 5 disposed on the inner peripheral side of the main body 4 is disposed on the cylindrical body portion 8 having an outer diameter slightly smaller than the inner diameter of the opening portion 6 of the main body 4 and the proximal end side of the body portion 8. The main body 4 has an outer diameter larger than the outer diameter of the body portion 8 and has an outer diameter smaller than the inner diameter of the main body 4 (excluding the lip portion 7), and a front end side of the body portion 8. And the substantially spherical enlarged head 10 having an outer diameter larger than the opening diameter of the opening 6. Note that an engagement surface 9 a corresponding to the lower engagement surface 7 a of the lip portion 7 is formed on the outer periphery of the base portion 9. Therefore, the plug body 5 has the engagement surface 9 a of the base portion 9 of the main body 4. By being engaged with the engaging surface 7 a of the lip portion 7, it is retained and prevented from coming off.

  Further, as shown in FIG. 3, a plurality of grooves 12 are formed in the plug body 5 along a shaft center S in a part of the outer peripheral surface of the plug body 5, and the grooves 12 start from the engagement surface 9 a of the base portion 9. Pass through and end near the front of the head extension 10. Therefore, the groove 12 constitutes a communication path that communicates between the inside and the outside of the container 2 in cooperation with the inner peripheral surface of the opening 6 in a state where the plug body 5 is incorporated in the main body 4. The distance between the enlarged diameter portion 10a of the enlarged head portion 10 and the engagement surface 9a of the base portion 9 in the plug body 5 is the same as the distance between the upper engagement surface 7b and the lower engagement surface 7b (see FIG. 2) of the lip portion 7. Thus, the plug body 5 can slide in the vertical direction along the axis S. Here, the plug body 5 rises along the axis S when the dead weight or the container 2 is pressed, and descends along the axis S due to the negative pressure in the container 2 when the pressure is released. When the stopper body 5 is located at the lowest lowered position (position where the diameter-enlarged portion 10a of the stopper body 5 and the upper engagement surface 7b of the lip portion 7 are engaged), between the inside and the outside of the container 2 The communication path connecting is closed.

  Further, as shown in the left half view of FIG. 4, the container 1 with an inner stopper is provided with a sealing stopper 13 that covers the inner stopper 3 and is fixed by, for example, a screw at the mouth 2 a of the container 2. Since the sealing plug 13 has a pressing surface 14 that matches the upper portion (tip portion) of the head expansion 10 on the upper inner surface, the head expansion is performed in a state where the sealing plug 13 is fixed to the mouth 2a of the container 2. The ten enlarged-diameter portions 10a are pressed against the upper engaging surface 7b of the lip portion 7, and a reliable seal is performed therebetween.

  Next, an effect | action at the time of using the container 1 with an internal stopper which concerns on embodiment of this invention comprised as mentioned above as an eye drop container is demonstrated. At the time of instillation, as shown in FIG. 5, the user tilts the eye drop container filled with the drug solution, and presses the container body 2 b with the enlarged head 10 directed toward the eyeball E. As a result, as the pressure in the container 2 increases, the chemical solution passes through the groove 12 and is poured out from between the opening 6 of the main body 4 and the body 8 of the plug body 5. Then, the dispensed chemical solution travels along the surface of the enlarged head 10 by its own weight, concentrates at the lowest point P (the lowest point when the enlarged head 10 is tilted), drops into a drop shape, and is dropped onto the eyeball E. The On the other hand, as shown in FIG. 6, when the chemical solution is discharged and the container 2 is released from the pressure, the vacuum of the container 2 causes the air to pass through the groove 12 that is the same as the groove 12 used for dispensing the chemical solution. And is replaced by air.

  Therefore, according to the container 1 with the inner stopper, the dropping position (the lowest point P) where the chemical solution is actually dropped and the groove 12 serving as the air replacement inlet are formed apart from each other under the vacuum action of the container 2. In addition, since the groove 12 is positioned above the dropping position P in the direction of gravity with respect to the dropping position P during use (drip and air replacement), it was once poured out under the vacuum action of the container 2. Even if the chemical head does not flow back into the container 2 and the enlarged head 10 is brought into contact with the eye E at the time of dripping, it is possible to prevent foreign matter, bacteria, etc. from entering the container 2.

  In addition, according to the container 1 with an inner stopper in this embodiment, since the communication path is configured by the groove 12 formed on the outer peripheral surface of the trunk portion 8, the communication path is blocked along with the inclination of the container 2 during use. There is no fear of being dripped, and a smooth and appropriate amount of dripping can be realized.

  Moreover, according to the container 1 with a middle stopper in this embodiment, the stopper body 5 can be slid in the vertical direction along the axis S of the main body 4, and the stopper body 5 is located at the lowest lowered position. Since the communication path is closed (closed) by the enlarged-diameter portion 10a of the enlarged head 10, the plug 5 is raised by its own weight or by pressing the container 2 at the beginning of use, and the communication path is opened. When the pressure on the container 2 is released, the plug 5 is lowered and the communication path is blocked at the lowest position. Accordingly, even when the container 2 is returned to the vertical state immediately after dropping, the contents remaining on the surface of the enlarged head 10 can be reliably prevented from flowing back into the container, and when the container 2 is not used, It can be sealed, and quality deterioration of the chemical solution as the contents can be prevented.

  Moreover, in the container 1 with an inner stopper in this embodiment, the stopper 5 is covered with the inner stopper 3 and fixed to the mouth 2a of the container 2, and the stopper 5 is fixed to the mouth 2a of the container 2. Since the sealing plug 13 is further provided to press to the lowest position, even if the container 2 falls down when not in use, the contents can be prevented from leaking outside, and the container 2 can be more securely sealed. Can be.

  Although the present invention has been described based on the illustrated examples, the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the claims. For example, a communication path is configured. The groove 12 to be formed may be provided on the main body 4 side (inner peripheral surface of the opening 6) instead of the plug body 5 side, or the groove 12 is not formed, and the groove 12 is formed between the plug body 5 side and the main body 4 side. A gap through which the liquid and the outside air can pass may be provided. Moreover, although it demonstrated that the groove | channel 12 was formed along the axial center S, you may form in a spiral shape. Further, the shape of the enlarged head 10 is not limited to a spherical shape as long as the contents poured out from the opening 6 can be dropped, and for example, the maximum width position may be the dropping position as a convex lens shape.

  Thus, according to the present invention, even when the inside stopper is brought into contact with the object to be dropped and dripping is performed, it is possible to avoid contamination of foreign matters and bacteria in the container.

DESCRIPTION OF SYMBOLS 1 Container with inner plug 2 Container 3 Inner plug 4 Main body 5 Plug body 6 Opening part 8 Trunk part 9 Base part 10 Expanded head part 12 Groove 13 Sealing stopper

Claims (4)

A container with an inner stopper provided with an inner stopper that allows dripping of the contents from the mouth at the mouth of the container,
The inner plug has an opening for pouring the contents in the container and is fitted and held in the mouth of the container, and is held on the inner peripheral side of the main body coaxially with the axis of the main body. A plug body,
A body portion that forms a communication path for communicating between the inside and the outside of the container between the opening and the opening,
And拡頭portion having a larger outer diameter than are disposed on the distal end side of the body portion opening diameter of the opening, the provided
The main body of the inner plug has a lip portion that protrudes toward the inner peripheral side and forms the opening, and the body portion of the plug body of the inner plug has an outer diameter on the proximal end side than the inner diameter of the lip portion. Has a large base part, and the engaging surfaces of the lip part and the base part are both inclined toward the base end side toward the radially outer side,
The plug-attached container is characterized in that the base of the plug is formed in a hollow shape that opens to the end face on the base end side .   The container with an inner stopper according to claim 1, wherein the communication path is configured by at least one groove formed on at least one of an inner peripheral surface of the opening and an outer peripheral surface of the trunk.   The plug body is slidable in a vertical direction along an axis of the main body, and the communication path is closed by the enlarged head when the plug body is located at a lowest lowered position. A container with an inner stopper according to 1 or 2.   The container further includes a sealing plug that covers the inner plug and is fixed to the mouth of the container, and presses the stopper to the lowest position in a state of being fixed to the mouth of the container. The container with an inside stopper as described in any one of 1-3.

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