JP6470619B2 - Syringe-type refill container - Google Patents

Description

  The present invention relates to a syringe-like refill container.

  Conventionally, for example, a refill container as shown in Patent Document 1 below is known. This refill container contains the contents (content liquid) and extends in the front-rear direction, and at the front end is provided with a container main body protruding from the container and a rear end of the container main body. A plug body that closes the air opening, a push button that pushes the plug body forward, and an air supply path that introduces outside air into the air supply opening are provided. In addition, a plurality of stepped vertical ridges are provided on the outer peripheral surface of the dispensing tube at intervals in the circumferential direction, and an air passage is formed between adjacent stepped vertical ridges. .

  In order to pour the contents of the refill container into the main container, the pour cylinder is inserted into the main container, and the push button is pushed forward. As the push button is pushed in, the plug is pushed in and the air supply opening opens. Outside air is introduced into the air supply port from the air supply passage and flows into the container main body, and the contents in the container main body flow down by its own weight and are poured out from the dispensing tube into the main container. At this time, the air in the container flows out to the outside through the air passage between the stepped vertical protrusions on the outer peripheral surface of the dispensing tube, so that the contents and air are replaced in the container. ing.

No. 8-6778

  However, in the conventional refill container, the contents are poured out into the container by its own weight, so that it takes a long time to complete the dispensing. For this reason, there was room for improvement in efficiently pouring the contents into the container.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the syringe-shaped refill container which can pour the contents into this container efficiently.

In order to solve the above problems, the present invention proposes the following means.
The present invention has a container body that extends in the front-rear direction and has a dispensing tube inserted into the container projecting forward at the front end portion, and a liquid-tight fit in the container body so as to be slidable back and forth. A syringe-type refill container comprising a combined piston and a rod extending rearward from the piston, wherein the container body contains contents and allows the piston to slide forward and backward. A fitted inner container; an outer container that houses the inner container; and a rear lid that integrally closes the respective rear end openings of the inner container and the outer container and through which the rod penetrates. The air replacement between the inner container and the outer container opens to the front end opening edge of the dispensing cylinder and to the rear space located between the piston and the rear lid in the container body. road is formed, the pouring cylinder, the inside An inner pouring cylinder provided in the vessel and an outer pouring cylinder provided in the outer container, the inner pouring cylinder is inserted into the outer pouring cylinder, and the air replacement path is formed by the inner pouring cylinder. There is a gap through which air can circulate between the pipe and the outer pipe .

  In the syringe-like refill container of the present invention, when the dispensing tube is inserted into the container and the rod is moved forward relative to the container body, the piston moves forward together with the rod. As the piston moves forward, a rear space located between the piston and the rear lid expands, and the air in the container is introduced into the rear space.

  Also, because the piston is fluid-tightly fitted inside the inner container so that it can slide back and forth, the contents can be efficiently poured into the container by pushing the rod and forcibly moving the piston forward. can do. That is, the contents can be forced out by the syringe-like structure. Thereby, the contents in the container body can be efficiently poured out into the container.

  In addition, since the air replacement path is formed between the inner container and the outer container, the contents attached to the inner peripheral surface near the inlet of the main container reach the outer peripheral surface of the main container by air replacement. Can be prevented. In other words, it is possible to prevent the contents from adhering to the outer peripheral surface of the container, thereby preventing the hand of the refilling operator from being soiled by the outflowed contents, which makes the operator uncomfortable. In addition to being prevented from being applied, it is possible to maintain a good feeling of operation.

Further, the syringe-like refill container of the present invention, the pre-Symbol in the pouring cylinder, it is also possible that protrudes forward from the subcontracting out tube.

  In this case, the front end opening of the inner dispensing cylinder is positioned in front of the front opening of the air replacement path, and the contents to be poured into the container through the inner dispensing cylinder are sucked into the air replacement path. It becomes difficult to be. Therefore, the operation of the air replacement path described above is stably maintained.

  Moreover, the syringe-shaped refill container of this invention WHEREIN: The said rod is good also as being connected with the said back cover through the weakening part which can be fractured | ruptured.

  In this case, whether or not the contents have been poured out in the past can be easily visually recognized depending on whether or not the weakened portion is broken. In addition, when the contents are poured out, the weakened portion is broken when the rod is pushed forward, so that the operator can recognize that the contents are poured out for the first time.

  Moreover, the syringe-shaped refill container of this invention WHEREIN: The seal | sticker part which airtightly contacts the outer peripheral surface of the said rod may be formed in the said back cover.

In this case, when the rod is pushed forward, the rear space can be set to a negative pressure, and the introduction of air in the container into the rear space through the air replacement path can be further promoted. .
That is, as the piston moves forward, the contents are poured into the container through the inside of the dispensing cylinder, and air is sucked out from the inside of the container through the front end opening edge of the dispensing cylinder. The sucked air flows into the rear space through the air replacement path. In this way, the contents are replaced with air.

Specifically, when the rod moves forward with respect to the container body, the rod slides with respect to the rear lid. That is, air can be prevented from flowing into the rear space from the outside through the space between the rear lid and the rod penetrating the rear lid.
As a result, it becomes possible to promote the introduction of the air in the container into the rear space through the air replacement path, and the replacement of the air in the container with the contents is performed efficiently, and the container body The contents inside can be efficiently poured into the container.

  According to the syringe-shaped refill container of the present invention, the contents can be efficiently poured into the container, and the contents can be prevented from adhering to the outer peripheral surface of the container body.

It is a longitudinal cross-sectional view which shows the syringe-like refill container which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view explaining the refilling operation of the contents from a syringe-shaped refill container to this container. It is a longitudinal section explaining an example of the form at the time of product distribution of a syringe-like refill container. It is a longitudinal cross-sectional view (half-sectional view) which shows the modification of a syringe-like refill container. It is a longitudinal cross-sectional view (half-sectional view) which shows the modification of a syringe-like refill container.

Hereinafter, a syringe-shaped refill container 1 according to an embodiment of the present invention will be described with reference to the drawings.
In the syringe-shaped refill container 1 of the present embodiment, for example, a high-viscosity liquid is accommodated as the contents to be refilled in the main container 30.

As shown in FIGS. 1 to 3, the syringe-shaped refill container 1 includes a container body 2, a piston 3, and a rod 4.
The container main body 2 extends in the front-rear direction, and a dispensing cylinder 5 that is inserted into the main container 30 projects forward from the front end portion of the container main body 2. The piston 3 is liquid-tightly fitted in the container body 2 so as to be slidable back and forth. The rod 4 extends rearward from the piston 3. A rear lid 6 is provided at the rear end of the container body 2, and the rod 4 passes through the rear lid 6.

  In FIG. 1, the container main body 2, the piston 3, the rod 4, the extraction cylinder 5, and the rear lid 6 have their respective central axes arranged on a common axis. In this specification, this common axis | shaft is called the container axis | shaft O, and the direction along the container axis | shaft O is called the front-back direction. Of the front and rear directions, the direction from the rear lid 6 of the container body 2 toward the extraction cylinder 5 is referred to as the front, and the direction from the extraction cylinder 5 of the container body 2 toward the rear lid 6 is referred to as the rear. Further, in a plan view viewed from the front-rear direction, a direction orthogonal to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

The container body 2 has a double cylindrical shape. The container main body 2 includes an inner container 7, an outer container 8, a pour cylinder 5 provided at the front ends of the inner container 7 and the outer container 8, and a rear lid 6.
The inner container 7 contains the contents, and the piston 3 is fitted inside the inner container 7 so as to be slidable back and forth. The outer container 8 accommodates the inner container 7. The rear lid 6 integrally closes the rear end openings of the inner container 7 and the outer container 8, and the rod 4 is provided through the rear lid 6. The dispensing cylinder 5 includes an inner dispensing cylinder 7a included in the inner container 7 and an outer dispensing cylinder 8a included in the outer container 8. The inner pouring cylinder 7a is inserted into the outer pouring cylinder 8a.

In FIG. 1, the inner container 7 has a bottomed cylindrical shape. The inner container 7 includes a peripheral wall 7b, a front wall 7c, and an inner pouring cylinder 7a projecting forward from the front wall 7c.
At the rear end of the peripheral wall 7b, a plurality of locking ridges 7d projecting outward in the radial direction from portions other than the rear end are provided in a projecting manner at intervals in the circumferential direction. Further, at the rear end portion of the peripheral wall 7b, a gap through which air can flow is formed between the locking protrusions 7d adjacent in the circumferential direction.

  The inner pouring cylinder 7a is disposed coaxially with the container axis O, and protrudes forward in the radial center (on the container axis O) of the front wall 7c. A removable cap 9 is fitted to the front end portion of the inner pouring cylinder 7a, and the front end portion of the inner pouring cylinder 7a is closed by the cap 9. Further, the inner pouring cylinder 7a projects forward from the outer pouring cylinder 8a.

The outer container 8 has a bottomed cylindrical shape. The outer container 8 includes a peripheral wall 8b, a front wall 8c, and an outer pouring cylinder 8a that protrudes forward from the front wall 8c.
In the illustrated example, the rear end portion of the peripheral wall 8b is formed thicker than the portion other than the rear end portion. A step portion 8d is formed at the rear end portion of the inner peripheral surface of the peripheral wall 8b, and the front end surface of the locking protrusion 7d of the inner container 7 is in contact with the end surface facing rearward in the step portion 8d. It touches. In addition, the outer peripheral surface of the locking protrusion 7d is in contact with the inner peripheral surface facing the radially inner side in the step portion 8d.

In FIG. 1, a ratchet prevention rib 8 e having an L shape in a longitudinal sectional view is provided in the vicinity of a connection portion between the peripheral wall 8 b and the front wall 8 c on the inner surface of the outer container 8. A plurality of backlash prevention ribs 8e are formed at intervals inside the outer container 8 in the circumferential direction.
The inner peripheral surface of the play prevention rib 8e that faces radially inward in the portion formed on the peripheral wall 8b is in contact with the front end portion of the outer peripheral surface of the peripheral wall 7b of the inner container 7. In addition, the back end face of the play prevention rib 8 e facing the rear in the portion formed on the front wall 8 c is in contact with the radially outer end of the front end face of the front wall 7 c of the inner container 7.

In this way, the step 8d and the locking protrusion 7d are locked and the backlash prevention rib 8e is provided, whereby the radial distance between the outer container 8 and the inner container 7 and the distance in the front-rear direction are as follows. It is kept at a predetermined value.
Specifically, between the peripheral wall 8b of the outer container 8 and the peripheral wall 7b of the inner container 7, between the front wall 8c of the outer container 8 and the front wall 7c of the inner container 7, and the outer pouring cylinder of the outer container 8 A gap through which air can flow is formed between 8a and the inner dispensing cylinder 7a of the inner container 7.

The outer pipe 8a is disposed coaxially with the container axis O, and protrudes forward in the radial center (on the container axis O) of the front wall 8c. A cap 9 is connected to the front end portion of the outer pouring cylinder 8a through a weakened portion that can be broken.
In addition, an annular protrusion 10 is formed on the outer peripheral surface of the outer pipe 8a so as to protrude outward in the radial direction and extend along the circumferential direction. As shown in FIG. 2, when the dispensing cylinder 5 is inserted into the inlet 31 of the main container 30, the annular protrusion 10 slides back and forth with respect to the inner peripheral surface of the inlet 31 of the main container 30. Fit freely.

  The rear lid 6 projects from the rear end of the first fitting cylinder 11 to the outer side in the radial direction, and extends over the entire circumference in the circumferential direction. A flange portion 13 that extends continuously, and a lid plate 15 that is connected to the flange portion 13 via a hinge 14 and integrally closes the rear end openings of the inner container 7 and the outer container 8 are provided. In the example of this embodiment, the rear lid 6 and the rod 4 are integrally formed.

Of the first fitting cylinder 11, the front portion 11 a is fitted on the radially inner side of the rear end portion of the peripheral wall 7 b of the inner container 7. Of the first fitting cylinder 11, a rear part 11 b having a diameter larger than that of the front part 11 a is fitted to the inner side in the radial direction of the rear end part of the peripheral wall 8 b of the outer container 8. Among the first fitting cylinders 11, the ring plate part 11 c that is located between the front part 11 a and the rear part 11 b and connects them is behind the rear end face of the locking protrusion 7 d of the inner container 7. From or close to.
Further, the ring plate portion 11c is formed with a communication hole 11d penetrating the ring plate portion 11c in the front-rear direction, and the communication hole 11d allows the adjacent engagement in the circumferential direction at the rear end portion of the inner container 7. A gap positioned between the protrusions 7d communicates with the inside of the first fitting cylinder 11.

The front end surface of the flange portion 13 is in contact with the rear end opening edge of the peripheral wall 8 b of the outer container 8.
The lid plate 15 has a crested cylindrical shape. A front end opening edge in the peripheral wall of the cover plate 15 is in contact with the rear end surface of the flange portion 13. A through hole 15a through which the rod 4 penetrates in the front-rear direction is formed in the rear wall of the cover plate 15.

  The inner peripheral surface of the through hole 15a and the outer peripheral surface of the rod 4 are connected by a weakened portion 15b that can be broken. The weakening part 15b is exposed to the outside of the syringe-shaped refill container 1, and is formed at a position where it can be seen from the outside. A plurality of weakening portions 15b may be provided at intervals in the circumferential direction on the inner peripheral surface of the through hole 15a, or may extend continuously over the entire circumference in the circumferential direction.

  The cover plate 15 is formed with a second fitting cylinder 12 that protrudes forward and is fitted into the first fitting cylinder 11. The second fitting cylinder 12 is fitted in the rear portion 11 b of the first fitting cylinder 11. In the lid plate 15, a cylindrical portion 16 that protrudes forward is formed at a portion located between the second fitting cylinder 12 in the radial direction and the through hole 15 a. A plurality of ribs extending in the front-rear direction are formed on the inner peripheral surface of the cylindrical portion 16 at intervals in the circumferential direction.

The piston 3 includes a main body cylinder portion 17 formed in a bottomed cylinder shape, and an engagement cylinder portion 18 projecting rearward from the front wall of the main body cylinder portion 17.
The peripheral wall 17a of the main body cylinder portion 17 is formed to be elastically deformable in the radial direction. The peripheral wall 17a of the main body cylinder portion 17 is liquid-tightly fitted to the inner peripheral surface of the peripheral wall 7b of the inner container 7 so as to be slidable back and forth. In FIG. 1, the rear end surface of the peripheral wall 17 a of the main body cylinder portion 17 is in contact with the front end surface of the front portion 11 a of the first fitting cylinder 11. Further, a guide shaft 19 that protrudes forward is formed on the front wall of the main body cylinder portion 17. The guide shaft 19 is inserted into the inner dispensing cylinder 7 a of the dispensing cylinder 5 when the piston 3 moves forward relative to the inner container 7.

  In FIG. 1, the rear end surface of the engagement tube portion 18 is in contact with the front end surface of the tube portion 16. A plurality of support plates 18 a extending in the front-rear direction are formed on the inner peripheral surface of the engagement cylinder portion 18 at intervals in the circumferential direction. The support plate 18a is arranged in such a posture that the front and back surfaces thereof face the circumferential direction. The rear end portion of the support plate 18a gradually inclines forward toward the inner side from the outer edge in the radial direction, and the inner end portion in the radial direction extends along the radial direction.

  The rod 4 has a top tube shape. The front end opening edge of the rod 4 is in contact with the radially inner end portion of the rear end portion of the support plate 18 a of the engagement cylinder portion 18.

  And in the syringe-shaped refill container 1 of this embodiment, between the inner container 7 and the outer container 8, on the front-end opening edge of the extraction | pouring cylinder 5, and in the container main body 2, piston 3 and the rear cover 6 An air replacement path 21 is formed in the rear space 20 positioned therebetween.

  The rear space 20 in the container body 2 is a chamber having a substantially cylindrical shape. The rear space 20 is surrounded by the piston 3 and the rear lid 6 from the front-rear direction. In FIG. 1, the rear space 20 is also surrounded by the piston 3 and the rear lid 6 from the radial direction. As shown in FIG. 2, when the rod 4 is pushed forward into the container body 2, the rear space 20 is also surrounded by the rod 4 and the container body 2 from the radial direction.

  The air replacement path 21 is formed in a multistage cylindrical space (chamber) between the inner container 7 and the outer container 8. As shown in FIG. 2, the front end portion of the air replacement path 21 opens on the front end opening edge of the outer extraction cylinder 8 a in the extraction cylinder 5. Further, the rear end portion of the air replacement path 21 is formed by a gap between the engaging protrusions 7 d adjacent in the circumferential direction and the communication hole 11 d and is open in the rear space 20.

  In order to refill the contents of the syringe-shaped refill container 1 of the present embodiment described above into the main container 30, as shown in FIG. Insert into the inlet 31 of the container 30. When the rod 4 is moved forward relative to the container body 2, the weakened portion 15 b is broken, and the piston 3 moves forward together with the rod 4. As the piston 3 moves forward, the rear space 20 located between the piston 3 and the rear lid 6 expands, and the air in the main container 30 is introduced into the rear space 20.

  Further, since the piston 3 is fitted inside the inner container 7 in a fluid-tight manner so as to be slidable back and forth, the contents can be efficiently transferred to the main container by pushing the rod 4 and forcibly moving the piston 3 forward. 30 can be dispensed. That is, the contents can be forced out by the syringe-like structure. Thereby, the contents in the container main body 2 can be efficiently poured into the container 30.

  Further, since the air replacement path 21 is formed between the inner container 7 and the outer container 8, the contents attached to the inner peripheral surface in the vicinity of the inlet 31 of the main container 30 are replaced with the main container by air replacement. It can be prevented that the outer peripheral surface 30 is reached. In other words, it is possible to prevent the contents from adhering to the outer peripheral surface of the container 30, thereby preventing the hand of the refilling operator from being soiled by the outflowed contents, which makes the operator uncomfortable. Can be prevented, and the operational feeling can be maintained well.

  Further, in the present embodiment, of the dispensing cylinder 5, the inner dispensing cylinder 7a projects forward from the outer dispensing cylinder 8a. Therefore, the front end opening of the inner pouring cylinder 7a is positioned in front of the front end opening of the air replacement passage 21, and the contents poured into the container 30 through the inner pouring cylinder 7a are replaced with air. It becomes difficult to be sucked into the road 21. Therefore, the operation of the air replacement path 21 described above is stably maintained.

  Moreover, in this embodiment, the rod 4 is connected with the back cover 6 via the weakening part 15b which can be fractured. Therefore, whether or not the contents have been poured out in the past can be easily recognized depending on whether or not the weakened portion 15b is broken. In addition, when the contents are poured out, the weakened portion 15b is broken when the rod 4 is pushed forward, so that the operator can recognize that the contents are poured out for the first time.

  Further, in the present embodiment, an annular protrusion 10 is formed on the outer peripheral surface of the outer dispensing cylinder 8 a of the dispensing cylinder 5, and this annular protrusion 10 slides forward and backward with respect to the inner peripheral surface of the inlet 31 of the container 30. Fits freely. Therefore, even when the contents are attached to the inner peripheral surface of the inlet 31 of the main container 30, the contents are stored by the annular protrusion 10 when the dispensing cylinder 5 is inserted into the inlet 31. It can be scraped off into the container 30. Thereby, at the time of the refilling of the contents, the contents adhering to the inlet 31 of the container 30 are prevented from entering the air replacement path 21.

  Furthermore, since the annular protrusion 10 is provided, the sealing property between the inlet 31 of the main container 30 and the extraction cylinder 5 is enhanced, so that air can be prevented from flowing into the main container 30 from the outside. . Thereby, the replacement of the air in the container 30 through the air replacement path 21 is performed with high efficiency.

  Moreover, in this embodiment, the hinge 14 which connects the flange part 13 and the cover board 15 is provided in the rear cover 6, and the cover board 15 is removed from the rear-end opening of the container main body 2 as FIG. 3 shows. The product can be distributed with the cover plate 15 and the rod 4 being opened. In this case, the total length in the front-rear direction of the syringe-shaped refill container 1 becomes compact, and bulkiness can be suppressed. Furthermore, since the rod 4 can be circulated as being separated from the piston 3, unintentional contents can be prevented from being unintentionally pushed due to the rod 4 being inadvertently pushed.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the rear lid 6 is provided with the hinge 14 that connects the flange portion 13 and the lid plate 15, but the present invention is not limited to this.
As in the modification shown in FIG. 4, the through hole 15 a and the first fitting cylinder 11 may be integrally provided in the lid plate 15 without using the hinge 14. In this case, the structure of the container can be simplified.

  In the example shown in FIG. 4, the first fitting cylinder 11 is fitted only in the peripheral wall 8 b of the outer container 8 and is not fitted in the peripheral wall 7 b of the inner container 7. Further, a groove 11e that is recessed rearward is formed on the front end surface of the first fitting cylinder 11, and a portion other than the groove 11e on the front end face of the first fitting cylinder 11 is the inner container 7. Is in contact with the rear end surface of the peripheral wall 7b. And the clearance gap between the protrusions 7d adjacent to each other in the circumferential direction and the rear space 20 communicate with each other through the inside of the groove 11e.

  In the modification shown in FIG. 5, the rod 4 has an axial shape, and the front end portion of the rod 4 is fitted in the engagement cylinder portion 18 of the piston 3. Further, in place of the support plate 18a of the engagement tube portion 18 described above, a plurality of support ribs 18b extending in the front-rear direction are provided on the outer peripheral surface of the engagement tube portion 18 at intervals in the circumferential direction.

The rear lid 6 is formed with a seal portion 22 that is airtightly slidably contacted with the outer peripheral surface of the rod 4 in place of the weakened portion 15b described above. The seal portion 22 protrudes radially inward from the inner peripheral surface of the through hole 15a formed in the cylindrical portion 16 of the cover plate 15 and continuously extends over the entire circumference in the circumferential direction. . The seal portion 22 is formed to be elastically deformable in the radial direction.
In this case, when the rod 4 is pushed forward, the rear space 20 can be set to a negative pressure, and air in the container 30 can be further introduced into the rear space 20 through the air replacement path 21. Can be promoted.

  That is, the forward movement of the piston 3 causes the contents to be poured out into the main container 30 through the inside of the pouring cylinder 5. Air is sucked out through the cylinder 7a. The sucked air flows into the rear space 20 through the air replacement path 21. In this way, the contents are replaced with air.

Specifically, when the rod 4 moves forward with respect to the container body 2, the rod 4 slides with respect to the rear lid 6. That is, air can be prevented from flowing into the rear space 20 from the outside through the space between the rear lid 6 and the rod 4 penetrating the rear lid 6.
Thereby, it becomes possible to accelerate | stimulate introducing the air in this container 30 into the back space 20 through the air replacement path 21, and the replacement | exchange of the air in this container 30 and the content is performed efficiently. At the same time, the contents in the container body 2 can be efficiently poured into the container 30.

  In addition, in the range which does not deviate from the meaning of this invention, it is possible to replace suitably the component in the embodiment mentioned above by the known component, and you may combine the modification mentioned above suitably.

DESCRIPTION OF SYMBOLS 1 Syringe refill container 2 Container main body 3 Piston 4 Rod 5 Outflow cylinder 6 Rear cover 7 Inner container 7a Inner extraction cylinder 8 Outer container 8a Outer extraction cylinder 15b Weaking part 20 Back space 21 Air replacement path 22 Seal part 30 This container

Claims (4)

A container body that extends in the front-rear direction, and has a dispensing tube that projects into the front end at the front end portion, and projects forward.
A piston fitted in the container body in a fluid-tight manner so as to be slidable back and forth;
A syringe-like refill container comprising a rod extending rearward from the piston,
The container body is
An inner container in which the contents are accommodated and the piston is slidably fitted back and forth inside,
An outer container containing the inner container;
And integrally closing the respective rear end openings of the inner container and the outer container, and a rear lid through which the rod is provided,
Between the inner container and the outer container, an air replacement path that opens on a front end opening edge of the dispensing cylinder and in a rear space located between the piston and the rear lid in the container body. Formed ,
The dispensing tube is
An inner pouring cylinder provided in the inner container;
An outer pipe provided in the outer container,
The inner pouring tube is inserted into the outer pouring tube;
The syringe-type refill container , wherein the air replacement path has a gap through which air can flow between the inner and outer pipes. The syringe-shaped refill container according to claim 1,
Before SL in the pouring cylinder, the syringe-like refill, characterized in that protrudes forward from the subcontracting out tube. A syringe-shaped refill container according to claim 1 or 2,
The syringe-shaped refill container, wherein the rod is connected to the rear lid through a weakening portion that can be broken. The syringe-shaped refill container according to any one of claims 1 to 3,
A syringe-shaped refill container, wherein a seal portion that is airtightly slidably contacted with the outer peripheral surface of the rod is formed on the rear lid.

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