JP2017178437A - Inside plug and container having inside plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inside plug capable of smoothly discharging even liquid of high viscosity to an external part, and a container having the inside plug.SOLUTION: In an inside plug having a body part having an external shape of a substantially truncated cone shape and at least two projection parts provided on an upper surface of the body part, the upper surface of the body part comprises a discharge part constituted of a cross slit in a central part, and has a cone shape of inclining downward toward the discharge part, and the projection part is arranged in a downward inclined part of the upper surface of the body part, and has an inclined plane of inclining downward toward the central part from the upper end, and when force acts from above on the projection part, the inclined plane of the projection part is brought down forward, and the upper surface of the body part is recessedly deformed, so that the slit opens and functions as the discharge part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an inner stopper and a container including the inner stopper.

  In order to discharge a liquid or fluid such as chemicals or lotion, and to discharge the liquid or fluid, a container in which an inner plug having a discharge portion is attached to the mouth of the container is used. In such a container, various forms have been used as a structure for discharging a liquid or the like from the discharge portion by applying a force to the inner plug. In particular, in the case of a container that discharges liquid or the like while pressing the distal end against the affected part or the like, there is a container provided with a protruding member that comes into contact with the affected part or the like in addition to the ejection part at the distal end.

  For example, Patent Document 1 discloses an inner plug having a vertically movable nozzle member protruding from a spout, and when the nozzle member is pressed against an affected area, the nozzle member moves downward, A structure in which a chemical solution is discharged from a spout is disclosed. Patent Document 2 discloses a structure in which a valve mechanism including a slit is provided in a dome-shaped valve portion, and the slit is opened by pressing a protrusion provided in the center of the valve portion.

Japanese Patent Laid-Open No. 2008-143687 JP 2003-72816 A

  In the internal stopper using the nozzle that can move up and down as in Patent Document 1, there is a problem that the number of parts increases and the structure becomes complicated, and when the structure becomes complicated, there is a problem that the nozzle member does not move properly. there were.

  The structure of Patent Document 2 uses a structure in which the slit is opened by deforming the dome-shaped valve portion when a force is applied to the protrusion, and a simpler structure than that of Patent Document 1 is realized. In the case of a high liquid, since the liquid is not discharged unless the slit is sufficiently opened, an excessive force is applied to the protrusion, so that there is a possibility that a large amount of liquid or the like called so-called “bottom drop” is suddenly discharged. .

  Therefore, the present invention is capable of smoothly discharging even a highly viscous content while ensuring the necessary sealing performance as an inner plug, and further prevents dropping of the inner plug and the aforementioned plug. It aims at providing a container provided with an inside stopper.

  The inner plug of the present invention is an inner plug including a main body portion having a substantially frustoconical outer shape, and at least two protrusions provided on the upper surface of the main body portion, and the upper surface of the main body portion has a central portion. And a mortar shape that is inclined downward toward the discharge portion, and the protrusion is disposed at a portion inclined downward from the upper surface of the main body portion. And has an inclined surface inclined downward from the upper end toward the central portion, and when a force is applied to the protruding portion from above, the inclined surface of the protruding portion falls forward and the upper surface of the main body portion is recessed. By being deformed as described above, the slit is opened to function as the discharge unit.

  The central portion of the upper surface of the main body has a flat surface on both the upper surface and the bottom surface, and the slit is located in the flat surface.

  When two projections are arranged on the upper surface of the main body so as to face each other, when a force is applied to the projection from above, the opposing projections come into contact with each other with their upper ends approaching each other. When three or more protrusions are arranged on the upper surface of a part, when a force is applied to the protrusion from above, a part of the upper ends of the adjacent protrusions contact each other.

  The protrusions are arranged so as to face each other, and at least one of the cross slits is arranged so as to extend from one of the protrusions toward the other protrusion.

  The cross-sectional shape in the vertical direction of the protrusion is a substantially triangular shape.

  A substantially cylindrical portion is provided below the main body portion, and an attachment portion used for attachment to the container is provided in the substantially cylindrical portion.

  The inner plug is preferably made of an elastically deformable material.

  The container of the present invention is characterized by comprising the inner plug, wherein the inner plug has a container main body attached to the mouth, and a lid that can be attached to and detached from the container main body. Protrusions that come into contact with the discharge portion of the inner plug when the lid is closed are provided.

  It has a fixture for fixing the inner plug to the mouth of the container body, and the fixture has a cylindrical side surface and an upper surface having an opening in the center, on the inner peripheral surface of the side surface. Is formed with an engaging portion that engages with the outer peripheral surface of the mouth portion of the container main body, and the periphery of the opening on the upper surface is provided with a hook-like attachment portion provided on the inner plug from above to the upper end of the mouth portion. The inner plug is fixed by pressing.

  The inner plug of the present invention is an inner plug including a main body portion having a substantially frustoconical outer shape, and at least two protrusions provided on the upper surface of the main body portion, and the upper surface of the main body portion has a central portion. And a mortar shape that is inclined downward toward the discharge portion, and the protrusion is disposed at a portion inclined downward from the upper surface of the main body portion. And has an inclined surface inclined downward from the upper end toward the central portion, and when a force is applied to the protruding portion from above, the inclined surface of the protruding portion falls forward and the upper surface of the main body portion is recessed. By deforming in this manner, the slit opens and functions as the discharge unit, so that even a highly viscous liquid can be discharged smoothly from the discharge unit.

  Further, in the case of the inner plug of the present invention, when two protrusions are arranged on the upper surface of the main body so as to face each other, when the force acts on the protrusion from above, the opposite protrusions Are close to each other and are in contact with each other, and when three or more protrusions are arranged on the upper surface of the main body, when a force is applied to the protrusion from above, the adjacent protrusions have a part of the upper end. By contacting each other, the degree of opening of the discharge portion can be controlled even when an excessive force is applied, so that it is possible to prevent a phenomenon in which a large amount of liquid or the like is suddenly discharged, which is called “bottom dropping”.

  As described above, the container of the present invention has the effect related to the inner plug of the present invention. In addition, the container of the present invention has a lid that can be attached to and detached from the container body, and is provided with a protrusion that comes into contact with the discharge portion of the inner plug when the lid is closed, so that the container is closed when the lid is closed. It is possible to prevent leakage of the liquid contained in the container. Furthermore, by having a fixture for fixing the inner stopper to the mouth of the container body, the inner stopper can be detachably attached to the container, and the liquid in the container can be easily replenished.

It is a perspective view of the inside stopper of a 1st embodiment of the present invention. It is sectional drawing of the two directions orthogonal to each other of the inner stopper of 1st Embodiment. It is a top view of the inside stopper of a 1st embodiment. It is a front view of the inside stopper of a 1st embodiment. (A) is sectional drawing of the inside plug of 1st Embodiment of the state which the discharge part opened, (b), (c) is the mutual plug of the state where the discharge part was further opened from (a). It is sectional drawing of two directions orthogonal. It is sectional drawing of the container of this invention in the state where the left half opened the lid, and the right half is a front view of the container of this invention in the state of opening the lid. It is sectional drawing of the container of this invention of the state which closed the lid | cover. It is a perspective view of the inside stopper of a 2nd embodiment. It is sectional drawing of the inner stopper of 2nd Embodiment. It is a top view of the inside stopper of a 2nd embodiment. It is sectional drawing of the inside stopper of 2nd Embodiment in the state where the discharge part opened. It is a top view of the inside stopper of a 2nd embodiment in the state where the discharge part opened.

  The inner plug and container of the present invention will be described in detail below with reference to the drawings. 1 to 5 are drawings relating to the inner stopper 1 of the first embodiment of the present invention, and FIGS. 6 and 7 are drawings of the container 11 including the inner stopper 1.

  The inner plug 1 of the present invention is attached to the mouth of a container in order to discharge a liquid or fluid such as a medicine, and has a substantially frustoconical outer shape as shown in FIGS. 2 and two protrusions 3 provided to face the upper surface of the main body 2. As shown in FIGS. 1 and 2, the upper surface of the main body 2 includes a flat central portion 5 provided with a discharge portion including a slit 6, and an inclined portion inclined downward from the outer periphery toward the central portion 5. 4 and the protrusion 3 is disposed on the inclined portion 4.

  As shown in FIG. 2A, the protrusion 3 has an inclined surface that is inclined from the upper end toward the central portion 5, and an inclined surface that is inclined from the upper end toward the outer periphery of the upper end of the main body portion 2. The vertical cross-sectional shape is a triangle. A depression is formed along the outer periphery of the central portion 5 on the inclined surface of the protruding portion 3 toward the central portion 5. As shown in FIG. 3, the two protrusions 3 are arranged so as to face each other and their upper ends are parallel to each other.

  The shape of the protruding portion 3 only needs to have at least an inclined surface inclined from the upper end toward the central portion 5, and the inclined surface inclined from the upper end toward the outer periphery of the upper end of the main body portion 2 is curved or bent. In this case, the cross-sectional shape in the vertical direction is other than a triangle. Also, the number of the protrusions 3 is not limited to two, but can be three or more. The four cases will be described in the second embodiment.

  As shown in FIG. 3, the discharge part is composed of a slit 6 formed in a cross shape at the center of the central part 5 having a substantially circular planar shape, and the liquid is discharged by opening the slit 6. It functions as the said discharge part. The cross-shaped slit 6 is disposed so that one straight line of the cross extends from one protrusion 3 to the other protrusion 3. And although the said slit 6 has penetrated from the surface of the said center part 5 to the bottom face, as shown in FIG. 2, it is the state normally closed.

  The inner plug 1 is further provided with a connecting portion 9, a cylindrical portion 7, and an attachment portion 8 below the main body portion 2, which are mainly used when fixing the inner plug 1 to a container. Used. The connecting portion 9 is a portion inclined so that its diameter increases from the lower end of the main body portion 2 toward the cylindrical portion 7, and the attachment portion 8 is provided in the form of a flange surrounding the lower outer periphery of the cylindrical portion 7. An annular recess 10 is provided on the upper surface of the mounting portion 8 along the entire outer periphery of the cylindrical portion 7. A method of attaching the inner plug 1 to the container body will be described in detail later.

  In the inner plug 1, the main body 2, the protrusion 3, the connecting portion 9, the cylindrical portion 7, and the mounting portion 8 are integrally formed. As shown in FIG. Have. The inner plug 1 of the present invention is smoothly deformed when a force is applied to the protruding portion 3 so that liquid or the like can pass therethrough, and when the force is not applied, the discharge portion cannot smoothly pass through the liquid or the like. Therefore, it is preferable to be formed of a material that can be elastically deformed. Since the inner plug 1 is integrally formed of an elastically deformable material, it can be easily manufactured.

  Next, the opening / closing operation of the discharge part of the inner plug 1 will be described. The inner plug 1 is in a state in which the slit 6 is closed as shown in FIG. 2 when no force is applied. In this state, liquid or the like cannot pass through the slit 6.

  When a force is applied to the protrusion 3 from above by pressing the protrusion 3 of the inner plug 1 against an affected part or the like, the inner plug 1 is formed of an elastically deformable material. Deformation occurs at the center. Due to the force acting from above the protrusion 3, the two protrusions 3 move so that the inclined surfaces facing each other fall forward as indicated by arrows in FIG. The inner plug 1 is deformed so as to be pulled in the left-right direction as indicated by an arrow in FIG. 5A while the central portion 5 is pushed downward by the movement of the protruding portion 3. At the same time, the outer peripheral surface of the main body 2 is deformed so as to bulge outward while falling inward, and as a result, deformed so that the upper surface is recessed. And as shown to Fig.5 (a), the said slit 6 deform | transforms into the cross section of the substantially reverse V-shaped shape which the downward direction opened.

  Thus, in a state where the slit 6 is deformed, liquid or the like can pass through the slit 6 from the inside of the main body portion 2, and the slit 6 starts to function as a discharge portion. From the state of FIG. 5A, the inner plug 1 can be further deformed by continuously applying force to the protrusion 3 from above.

  When a force is further applied to the protrusion 3 from above in the state of FIG. 5A, the inner plug 1 is deformed so that the upper ends of the two protrusions 3 approach each other, as shown in FIG. 5B. Thus, the upper ends of the two protrusions 3 are in contact with each other. At this time, the inner plug 1 is deformed so that the central portion 5 is further pulled in the left-right direction, and the slit 6 is further opened downward, so that the liquid can easily pass through and the liquid with high viscosity. Even so, the ink is smoothly discharged from the discharge portion, and the discharge amount is also increased from the state shown in FIG.

  In the state of FIG. 5B, the two protrusions 3 are blocked above the discharge part, but in the direction in which the protrusions 3 of the inclined part 4 do not exist, FIG. There is a passage as indicated by an arrow, and the liquid discharged from the slit 6 is discharged to the outside through the passage and functions sufficiently as a discharge portion. In the state of FIG. 5A, since there is a space between the two protruding portions 3 facing each other, the liquid discharged from the discharging portion is discharged through the space between the two protruding portions 3. Will be.

  When the force from above on the protrusion 3 is released from the state shown in FIGS. 5A and 5B, the deformation of the inner plug 1 is restored, and the slit 6 is closed again. Therefore, the discharge part is closed, and the liquid or the like cannot pass therethrough. Thus, the slit 6 functions as a valve that opens and closes by being deformed, and the discharge part is opened and closed.

  The inner plug 1 further includes the inner plug 1 including the protrusion 3 when the force is further applied from the state in which the two protruding portions 3 facing each other at the upper end as shown in FIG. 5B. Since it can be elastically deformed, the slit 6 can be further opened. However, the deformation of the inner plug 1 from the state of FIG. 5B is greatly reduced in the deformation speed and the amount of deformation is smaller than the deformation from the state of FIG. 2 to the state of FIG. 5B. Become.

  The inner plug 1 is deformed in such a manner that the main body 2 has a substantially truncated cone shape, and the protrusion 3 having a substantially triangular cross section is provided on the inclined portion 4 of the main body 2. Is performed more smoothly. Moreover, the said center part 5 becomes easy to open the said slit 6 because an upper surface and a bottom face are flat surfaces. The deformation of the inner plug 1 is mainly performed above the main body 2, but the connecting portion 9 and the cylindrical portion 7 are also slightly deformed.

  It is preferable that the deformation of the inner plug 1 utilizes the characteristics of an elastically deformable material. An elastomer, silicon, or the like can be used as the elastically deformable material. By integrally forming using such a material, the deformation of the inner plug 1 of the present invention can be performed smoothly.

  When the inner plug 1 of the present invention is deformed by a force acting on the projection 3, the upper ends of the opposed projections 3 come into contact with each other, so that the slit 6 opens too much even if an excessive force is applied. Therefore, it is possible to prevent dropping of a button. It is also possible to adjust the degree of opening of the slit 6 by adjusting the size of the projection 3, the angle of the inclined surface, the interval between the opposed projections 3, and the like.

  Next, the container 11 of the present invention will be described. As shown in FIGS. 6 and 7, the container 11 of the present invention has the inner plug 1 attached to the container main body 14, and is composed of the container main body 14, the inner plug 1 and the lid 15, The liquid etc. in the said container main body 14 can be discharged using the inside plug 1. FIG. As shown in FIGS. 6 and 7, the inner plug 1 is detachably attached to the container body 14 using a fixture 12 at the mouth portion 13 fitted to the container body 14, and the lid 15 is The container body 14 is openably and closably attached by screw engagement.

  The fixture 12 has a cylindrical side surface and an upper surface having an opening at the center. Further, the fixing member 12 is formed with an engaging portion that engages with the outer peripheral surface of the mouth portion 13 provided in the container main body 14 on the inner peripheral surface of the side surface, and the periphery of the opening on the upper surface is the center. It functions as a member that presses down the attachment portion 8 of the stopper 1 from above. An annular protrusion 17 projecting downward is formed on the lower surface around the opening, and the annular protrusion 17 is inserted into the recess 10 of the attachment portion 8 of the inner plug 1.

  A method of fixing the inner plug 1 by the fixing tool 12 will be described. The inner plug 1 is disposed at the upper end of the mouth portion 13, and the fixture 12 is engaged with the mouth portion 13 from above the inner stopper 1. At this time, the mounting portion 8 of the inner plug 1 is pressed from above by the fixing tool 12, and at the same time, the annular protrusion 17 of the fixing device 12 is inserted into the recess 10 of the mounting portion 8 from above. Thus, the inner plug 1 is fixed by the fixing tool 12. At this time, the inner plug 1 is fixed in a state in which the connecting portion 9, the main body portion 2, and the protruding portion 3 protrude upward from the opening of the fixture 12 and are exposed. When the inner stopper 1 is fixed to the container main body 14 by the fixing tool 12 in this way, the inner plug 1 can discharge liquid or the like in the container main body 14 from the container 11. After the inner plug 1 is fixed, the lid 15 is closed to complete the container 11 of the present invention.

  Other methods can be used for attaching the inner plug 1 to the container main body 14. For example, the inner plug 1 is directly fitted into the container main body 14 without using a member such as a fixture. It is also possible to fix it. Other structures can also be used for the fixture.

  On the inner surface of the lid 15, there is formed a substantially columnar protrusion 16 that contacts the upper surface of the central portion 5 of the inner plug 1. When the lid 15 is closed, the projection 16 is inserted between the opposing projections 3 and abuts against the upper surface of the central portion 5 as shown in FIG. The function to close is produced. Since the central portion 5 has a flat upper surface and a flat surface, when a large force is applied to the bottom surface of the central portion 5 by the liquid in the container body 14, the slit 6 opens in the opening direction. Although there is a possibility of deformation, by suppressing the deformation of the central portion 5 by the projection 16 pressing the discharge portion from above, the sealing state of the discharge portion of the inner plug 1 is improved, The liquid in the container 11 can be reliably prevented from leaking out.

  When the projection 16 abuts on the upper surface of the central portion 5, a part of the side surface thereof is located in a recess provided on the inclined surface of the projection portion 3. As described above, the depression provided on the inclined surface of the protrusion 3 may be formed in accordance with the shape of the protrusion 16. Depending on the size of the protrusion 16, the depression may not be provided on the inclined surface. It is.

  As described above, the container 11 of the present invention including the inner plug 1 can smoothly discharge a liquid even if it is a highly viscous liquid by the inner plug 1 having a simpler structure than the conventional one. It is also possible to have a massage function with the inner plug 1. For example, when the container 11 is used as a medicine, it is possible to effectively massage the protrusion 3 while pressing the protrusion 3 of the inner plug 1 against the body and discharging the medicine. In addition, it can also be used as a container for chemicals, cosmetics and the like that are required to be massaged while discharging liquid or the like to the affected area, and can be used for various other purposes.

  When a massage function is added to the container 11, the number, shape, size, and the like of the protrusions 3 of the inner plug 1 can be changed to change the strength of stimulation. For example, it is possible to increase the stimulation by narrowing the width of the tip of the protrusion 3.

  Next, the inner plug 21 of the second embodiment will be described. As shown in FIGS. 8 to 12, the inner plug 21 includes a main body portion 22 having a substantially frustoconical outer shape, and four protrusions 23 arranged at equal intervals on the upper surface of the main body portion 22. As shown in FIGS. 8, 9, and 10, the upper surface of the main body 22 has a flat and rectangular central portion 25 provided with a discharge portion including a slit 26, and downward from the outer periphery toward the central portion 25. The inclined portion 24 is inclined, and the protruding portions 23 are arranged at equal intervals on the inclined portion 24.

  The inner plug 21 is further provided with a connection portion 29, a cylindrical portion 27, and an attachment portion 28 having a recess 30 on the upper surface below the main body portion 22. The stopper 21 is used to fix the container to the container, and since it has the same form as the connecting portion 9 of the inner stopper 1 of the first embodiment, the cylindrical portion 7 and the mounting portion 8 having the depression 10 on the upper surface, a detailed description will be given. Omitted.

  As shown in FIG. 9, the protrusion 23 has an inclined surface inclined from the upper end toward the central portion 25, and an inclined surface inclined from the upper end toward the outer periphery of the upper end of the main body portion 22. The cross-sectional shape in the direction is a triangle. As shown in FIG. 10, the four protrusions 23 are arranged at equal intervals on the inclined portion 24 on the upper surface of the main body 22.

  As shown in FIG. 10, the discharge part is composed of a slit 26 formed in a cross shape at the center of the central part 25 having a substantially rectangular planar shape, and the liquid is discharged by opening the slit 26. It functions as the said discharge part. The cross-shaped slit 26 is arranged so that two straight lines of the cross extend from one protrusion 23 to the other protrusion 23. And although the said slit 26 has penetrated from the surface of the said center part 25 to the bottom face, as shown in FIG. 11, it is the state normally closed.

  The inner plug 21 is integrally formed by using an elastically deformable material such as an elastomer or silicon, for example, the main body portion 22, the projecting portion 23, the connecting portion 29, the cylindrical portion 27, and the mounting portion 28. Is formed.

  Next, the opening / closing operation of the discharge part of the inner plug 21 will be described. The inner plug 21 is in a state in which the slit 26 is closed as shown in FIG. 9 when no force is applied. In this state, liquid or the like cannot pass through the slit 26.

  When a force is applied to the protruding portion 23 of the inner plug 21 from above, the inner plug 21 is formed of an elastically deformable material, so that deformation occurs around the protruding portion 23. Due to the force acting from above the protrusion 23, the four protrusions 23 move so that the inner inclined surface falls forward as indicated by the arrows in FIG. Due to the movement of the protrusion 23, the central portion 25 is deformed so as to be pulled in the left-right direction as indicated by arrows in FIG. 11, and at the same time, the outer peripheral surface of the main body portion 22 is tilted inward. It deform | transforms so that it may bulge outside, As a result, it deform | transforms so that an upper surface may be dented. Then, as shown in FIG. 12, the protrusion 23 is in a state where its upper end is in contact with the adjacent protrusion 23.

  At this time, as shown in FIG. 11, the slit 26 is deformed into a substantially inverted V-shaped cross-section opened downward. As described above, in a state where the slit 26 is deformed, it becomes possible for liquid or the like to pass through the slit 26 from the inside of the main body portion 22, and the slit 26 functions as a discharge portion.

  Further, at this time, as shown in FIG. 10, the inner plug 21 does not block the upper part of the discharge portion 23 as shown in FIG. 10, and a rectangular opening is formed as shown in FIG. Therefore, the opening serves as a liquid passage, and the liquid is discharged through the passage.

  When the force from above on the protrusion 23 is released from the state of FIGS. 11 and 12, the deformation of the inner plug 21 is restored, the slit 26 is closed again, and the state of FIGS. 9 and 10 is restored. The discharge part is in a closed state, and liquid or the like cannot pass therethrough. Thus, the slit 26 functions as a valve that opens and closes by being deformed, and the discharge unit is opened and closed.

  As shown in FIG. 12, the inner plug 21 includes the protrusion 23 when a force is further applied from a state in which the upper end of the protrusion 23 is in contact with the upper end of another adjacent protrusion 23. The inner plug 21 can be further elastically deformed, whereby the slit 26 can be further opened. However, the deformation of the inner plug 21 from the state of FIG. 12 is greatly reduced in the deformation speed and the deformation amount as compared with the deformation from the state of FIGS. 9 and 10 to the state of FIGS.

  As described above, the inner plug 21 of the second embodiment is also deformed smoothly, so that the slit 26 can be easily opened, and even a highly viscous liquid can be discharged smoothly. Moreover, since the upper end of the adjacent projection part 23 will mutually contact when the inside plug 21 deform | transforms by force, it can prevent the said slit 26 from opening too much even if excessive force is applied. , Can prevent falling out. Since the passage exists above the slit 26, even a highly viscous liquid can be smoothly discharged to the outside.

  The inner plug of the present invention uses a substantially frustoconical main body part, a plurality of protrusions provided on the inclined part of the main body part, and a flat central part so that the slit of the discharge part opens and closes smoothly. Even if it is a liquid with high viscosity, it can be discharged reliably, and the opening of the slit can be adjusted by the tips of the protrusions coming into contact with each other. Is also possible.

1,21 Inner plug 2,22 Body portion 3,23 Projection portion 4,24 Inclination portion 5,25 Center portion 6,26 Slit 7,27 Cylindrical portion 8,28 Mounting portion 9,29 Connection portion 10,30 Indentation 11 Container 12 Fixing Tool 13 Mouth Part 14 Container Body 15 Lid 16 Protrusion 17 Annular Protrusion

Claims (12)

An inner plug including a main body portion having a substantially frustoconical outer shape, and at least two protrusions provided on the upper surface of the main body portion,
The upper surface of the main body has a discharge portion composed of a cross-shaped slit at the center, and has a mortar shape that is inclined downward toward the discharge portion,
The protrusion is disposed in a portion inclined downward from the upper surface of the main body, and has an inclined surface inclined downward from the upper end toward the central portion.
When a force acts on the protrusion from above, the inclined surface of the protrusion falls forward, and the upper surface of the main body is deformed so as to be recessed, whereby the slit opens and functions as the discharge portion. The inside plug.   The center plug of the upper surface of the main body has flat surfaces on both the upper surface and the bottom surface, and the slit is located in the flat surface.   When two projections are arranged on the upper surface of the main body so as to face each other, when a force is applied to the projection from above, the opposite projections come into contact with each other with their upper ends approaching each other. The inside plug according to claim 1 or 2.   When three or more protrusions are disposed on the upper surface of the main body, when the force is applied to the protrusions from above, the adjacent protrusions have their upper ends in contact with each other. The inner plug according to claim 1 or 2.   The protrusions are arranged so as to face each other, and at least one of the cross-shaped slits is arranged so as to extend from one of the protrusions toward another of the opposite protrusions. The inside plug according to any one of claims 1 to 4.   The inner plug according to any one of claims 1 to 5, wherein a cross-sectional shape in a vertical direction of the protruding portion is a substantially triangular shape.   The substantially cylindrical part is provided below the main body part, and the attaching part used for attaching to the container is provided in the substantially cylindrical part. Inside plug as described.   The inner plug according to any one of claims 1 to 7, wherein the inner plug is made of an elastically deformable material.   A container comprising the inner stopper according to any one of claims 1 to 8.   The container according to claim 9, further comprising: a container main body in which the inner plug is attached to a mouth portion; and a lid that is detachable from the container main body.   The container according to claim 10, wherein the lid is provided with a protrusion that comes into contact with the discharge portion of the inner plug when the lid is closed. A fixing tool for fixing the inner stopper to the mouth of the container body;
The fixture has a cylindrical side surface and an upper surface having an opening at the center, and an engagement portion that engages with an outer peripheral surface of the mouth portion of the container body is formed on the inner peripheral surface of the side surface, 12. The inner plug is fixed to the periphery of the opening on the upper surface by pressing a hook-shaped mounting portion provided on the inner plug against the upper end of the mouth portion from above. Container as described.

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