KR102277851B1 - Dropper container - Google Patents

Abstract

A container 2 on which the neck portion 6 is erected, a stopper base 18 placed on the mouthpiece 6, a movable stopper 38 that is freely attached to and from the stopper base in an upwardly pressed state with respect to the stopper base, and a movable stopper. An elastically deformable member 72 covering the upper surface of the portion 38, and a dropper tube 30 extending downward to the lower portion of the container in connection with the stopper base at the lower side of the engaging recess 32a formed on the upper portion of the tube wall. A stopper 16 comprising: The stopper base 18 engages the bore portion 6 with the substrate portion 22 protruding outward from the connection point with the dropper tube 30 , and the movable stopper 38 is attached to the outer surface of the bore portion 6 . It has an inner peripheral wall 50 connected to the upper half with a gap G between the outer peripheral wall 40 fitted with the lower half 40a and the upper half 40b of the outer peripheral wall 40, The engaging claw 58a of the engaging cylinder portion 58 extending downward through the facing flange-shaped top wall portion 52 is fitted into the engaging concave portion 32a, and further the lower end of the elastically deformable member 72 (72a) is inserted into the upper part of the gap (G).

Description

Dropper container {DROPPER CONTAINER}

The present invention relates to a dropper container.

This application claims priority based on Japanese Patent Application No. 2014-071967 for which it applied to Japan on March 31, 2014, The content is used here.

A dropper container of this kind, comprising: a container body having a neck portion; and a stopper mounted to the aperture portion, the dropper tube attached to a through hole opened at the base of the stopper; extending downwardly into the container body through the aperture portion At the same time, there is known a dropper container provided with a push button for fitting the lower end of the elastic dome to the fitting groove formed in the stopper around the dropper tube, and for pressing the elastic dome (refer to Fig. 2 of Patent Document 1). .

Japanese Utility Model Release (Hei.) 5-10258

In the dropper container of Patent Document 1, the lower end of the elastic dome is inserted into the fitting groove of the stopper, but it is desired to further improve the ease of setting.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dropper container with good set properties, in which an elastically deformable member can be easily set to a stopper.

A first embodiment of the present invention provides a container in which a neck portion is erected, a stopper base placed on the mouthpiece portion, a movable stopper that can be freely lifted and lowered in an upwardly pressed state with respect to the stopper base, an elastically deformable member covering the upper surface of the movable stopper; and a stopper including a dropper tube extending downwardly to the lower portion of the container to engage with the stopper base at the lower side of the engaging recess formed on the upper portion of the tube wall, wherein the stopper base protrudes outward at the point of connection with the dropper tube an outer circumferential wall having a lower half fitted to the outer surface of the aperture, an inner circumferential wall connected to the upper half with a gap between the inner circumferential wall and an inner circumferential wall connected to the upper half of the outer circumferential wall; A locking cylinder portion extending downward through a flange-shaped top wall portion facing inward from the upper portion of the main wall is provided. An engaging claw capable of moving up and down in the engaging recess is laid on the inner surface of the engaging cylinder, and a piston member in liquid-tight contact with the inner surface of the inner peripheral wall is provided between the stopper base and the flange-shaped top wall of the movable stopper, , the lower end of the elastically deformable member is fitted into the upper portion of the gap between the outer circumferential wall and the inner circumferential wall.

In the first aspect of the present invention, the movable stopper allows the stopper of the dropper container to be moved up and down with respect to the stopper base, and the lower end of the elastically deformable member is fitted in the upper gap between the outer and inner walls of the movable stopper. are doing For this reason, the air in the gap can escape downward, so that, for example, when setting the lower end of the elastically deformable member into the gap, lifting of the elastically deformable member can be avoided. In addition, the elastically deformable member may be the illustrated elastic dome, or may be an elastic compression sphere using a bellows.

A second aspect of the present invention is the first aspect, wherein the gap is an exhaust passage, and communicates with the lower side of the stopper base through the gap between the substrate portion and the outer peripheral wall.

In the second aspect of the present invention, the gap is made to communicate with the lower side of the stopper base as an exhaust passage. For this reason, set property is further improved.

A third aspect of the present invention is, in the second aspect, screwing the lower half of the outer circumferential wall to the outer surface of the bore, and also connecting each part of the inner circumferential wall and the outer circumferential wall in the circumferential direction with a connecting piece, and at the same time as the outer periphery of the substrate portion A locking wall portion is erected in the gap between the inner peripheral wall and the outer peripheral wall, and the locking wall portion is engaged with the connecting piece as a rotation stop member of the stopper base with respect to the movable stopper.

In the third aspect of the present invention, each part of the inner peripheral wall and the outer peripheral wall is connected with a connecting piece in the circumferential direction, and the engaging wall portion is erected in the gap between the inner peripheral wall and the outer peripheral wall at the outer periphery of the substrate portion. The locking wall portion is thus engaged with the connecting piece as a rotation stop member of the stopper base with respect to the movable stopper. Since the rotation stop member is accommodated in the clearance gap, the space can be used effectively.

In a fourth aspect of the present invention, in any of the first to third aspects, the stopper includes a cover member having a pressing portion on the upper side that fits with the lower portion of the outer peripheral wall of the movable stopper and presses the lower end of the elastically deformable member from the upper side and an upper surface of the cap is formed on the upper outer surface of the cover member and the upper surface of the elastically deformable member.

In a fourth aspect of the present invention, an upper surface of the cap is formed on the upper outer surface of the cover member and the upper surface of the elastically deformable member. Compared to the prior art of installing a push button for pressing the elastically deformable member on the upper side of the elastically deformable member, the container height can be lowered.

In a fifth aspect of the present invention, in any of the first to third aspects, the piston member has an outer cylinder portion formed with a piston portion in liquid-tight contact with the inner surface of the inner peripheral wall, and an inner cylinder portion into which the engaging tube portion is inserted, the inner surface of the inner cylinder portion Temporary stop projections to be caught from above are provided with respect to the locking projections laid on the outer surface of the locking cylinder.

According to the fifth aspect of the present invention, a temporary stop projection is laid on the inner surface of the inner cylinder portion with respect to the locking projection of the locking cylinder portion, so in the process of assembling this dropper container, in the inner cylinder portion of the piston member, the movable stopper By inserting the locking cylinder part, the temporary stop projection of the inner cylinder part is passed above the locking projection of the locking cylinder part, and it is possible to assemble the stopper base and the dropper tube to the movable wall part with the piston member single body temporarily fixed to the movable wall part, and the piston Compared with a case where the assembly in which the member and the stopper base are assembled is mounted to the movable stopper, the dropper container can be easily assembled.

According to the present invention, since the lower end of the elastically deformable member is fitted into each upper end of the outer peripheral wall and the inner peripheral wall disposed with a gap therebetween, the repulsion of air is small compared to the case where the elastically deformable member is fitted into the fitting groove. It is possible to smoothly perform the insertion operation and settability is good.

Further, since the gap communicates downward of the stopper base through the gap between the substrate portion and the outer peripheral wall as an exhaust passage, the settability is good.

Further, the gap between the outer circumferential wall and the inner circumferential wall is also used as an installation location of the locking wall portion, which is a rotation stopping member of the stopper base relative to the movable stopper, and an exhaust passage. Therefore, it can be set as a compact structure.

In addition, the stopper upper surface is formed on the outer surface of the upper part of the cover member and the upper surface of the elastically deformable member, and a pressing member for pressing the elastically deformable member is not provided. Therefore, the height of the dropper container does not become high.

In addition, since a temporary stopper that engages from above with respect to the locking protrusion of the locking cylinder is provided on the inner surface of the inner cylinder, the dropper container can be easily installed compared to the case where the assembly in which the piston member and the stopper base are assembled is mounted to the movable stopper. can be assembled

1 is a longitudinal sectional view of a dropper container according to a first embodiment of the present invention;
Fig. 2 is an enlarged view of the main part of the container of Fig. 1;
Fig. 3 is an explanatory view showing a state in which the movable stopper of the container of Fig. 1 is raised.
Fig. 4 is an enlarged view of the main part of the dropper container according to the second embodiment of the present invention.
Figure 5 is a view looking up at the packing of Figure 4 from below.
FIG. 6 is a partially enlarged view of FIG. 4 .

1 to 3 show a dropper container according to a first embodiment of the present invention. 1 is a longitudinal sectional view of a dropper container according to a first embodiment of the present invention; Fig. 2 is an enlarged view of the main part of the container of Fig. 1; Fig. 3 is an explanatory view showing a state in which the movable stopper of the container of Fig. 1 is raised. This dropper container consists of a container 2 and a stopper 16 . Each of these members can be formed of, for example, a synthetic resin, a metal, or the like.

As shown in FIG. 1 , the container 2 is composed of a container body 4 and a rubbing member 8 .

The container body 4 stands up the neck part 6 of the upper end opening through the shoulder part in the body part. A thread is formed on the outer surface of the bore 6 .

The rubbing member 8 is composed of a main cylindrical portion 10 having an awning portion 10a engageable on the upper surface of the bore 6, and a rubbing portion 12 protruding from the inner surface of the main cylindrical portion. This rubbing part 12 is in contact with the outer surface of the dropper pipe|tube 30 mentioned later.

The stopper 16 includes a stopper base 18 , a dropper tube 30 , a movable stopper portion 38 , a piston member 60 , an elastic dome 72 which is an elastically deformable member, and a cover member 76 .

As for the stopper base 18, in the example shown, an annular plate part 21 facing inward is laid on the upper end of the vertical cylinder part 20, and at the same time, the substrate part 22 protrudes from the lower end of the cylinder part 20 to the outside. formed to do A packing 28 is laid on the lower surface of the substrate portion 22 and is placed on the awning portion 10a of the rubbing member 8 . At the outer end of the substrate portion 22, a cylindrical locking wall portion 24 stands up. A slit 26 is formed in this locking wall portion 24 intermittently in the circumferential direction in the longitudinal direction. The structure of the stopper base 18 can be changed suitably.

The dropper tube 30 has an engagement recessed portion 32a formed on the top of the tube wall, and a stopper base 18 is connected to the lower side of the engagement recessed portion, and the dropper tube 30 is connected to the container body 4 at this connection point. placed vertically into the bottom. The engaging concave portion 32a is formed vertically and wide enough to allow an engaging claw 58a, which will be described later, to move up and down. In a preferred example of illustration, the tube wall portion above the packing 28 is formed to be enlarged sequentially from top to bottom into a small-diameter cylinder portion 32, a medium-diameter cylinder portion 34, and a large-diameter cylinder portion 36, and a concave portion engaged with the small-diameter cylinder portion ( 32a), a fitting groove 34a is formed in the medium-diameter cylindrical portion 34, and a ring retaining groove 36a is formed in the large-diameter cylindrical portion 36, respectively. An annular plate portion 21 is fitted in the fitting groove 34a, and an O-ring 37 is inserted in the ring holding groove 36a. The shape of these members can be changed suitably.

The movable stopper portion 38 is composed of an outer peripheral wall 40 , an inner peripheral wall 50 , a flange-shaped top wall portion 52 , and a locking cylinder portion 58 .

The lower half 40a of the outer peripheral wall 40 is screwed to the outer surface of the neck part 6, and the upper half 40b of the outer peripheral wall 40 stands above the board|substrate part 22. As shown in FIG. The illustrated upper half 40b has a smaller outer diameter than the lower half. At the upper end of the inner surface of the outer peripheral wall 40, an upward end portion S1 for outer fitting is formed around it. Between the outer peripheral wall 40 and the board|substrate part 22, the space|gap A which communicates below the stopper base 18 with the gap|interval G mentioned later is formed.

The inner circumferential wall 50 is connected via an appropriate number of connecting pieces 48 so as to be positioned with a certain gap G with respect to the upper half 40b of the outer circumferential wall 40 . In the upper end of the outer surface of the inner circumferential wall 50, an end portion S2 for inner fitting is formed on the periphery to face the end portion S1 for fitting outside. The connecting piece 48 may be intermittently installed in the circumferential direction so as to connect the upper half of the outer circumferential wall 40 with a position (the lower end in the illustrated example) of the inner circumferential wall 50 lower than the inner fitting end S2. The slit 26 of the locking wall part 24 is inserted into this connecting piece 48, and it functions as a rotation stop member of the stopper base with respect to a movable stopper.

The flange-shaped top wall portion 52 is installed to extend inwardly from the upper portion of the inner peripheral wall 50 . An appropriate number of ventilation holes 54 are opened in the inner peripheral portion of the flange-shaped top wall portion 52 . In addition, in the illustrated example, the outer periphery of the flange-shaped top wall part 52 is recessed in an annular shape, and the inside of the recessed wall part 56 is formed so that a coil spring 70, which will be described later, is contactable.

The locking tube portion 58 extends downward from the inner edge of the flange-shaped top wall portion 52, and an annular engagement projection 58a laid on the inner surface of the lower end of the locking tube portion 58 is an engagement recess of the dropper tube 30. It is freely inserted into the part 32a by lifting and lowering.

In the piston member 60, the lower ends of the inner cylinder portion 62A and the outer cylinder portion 62B are connected at the bottom wall portion 64, and at the same time, the leg cylinder portion 68 extends downward from the bottom wall portion 64, and the outer cylinder portion ( A piston part 66 is formed on the outer surface of the upper end of 62B). Therefore, the inner cylinder portion 62A is slidably fitted to the outer surface of the locking cylinder portion 58 , and the piston portion 66 is fitted to the inner surface of the inner peripheral wall 50 , respectively. The leg cylinder portion 68 is fitted to the outer surface of the cylinder portion 20 . A coil spring 70 is mounted between the upper surface of the bottom wall portion 64 and the flange-shaped top wall portion 52 .

The elastic dome 72 is fitted in the upper portion of the gap G with its lower end 72a as a thick fitting ring. The lower surface outer edge and inner edge of the lower end portion 72a of the elastic dome 72 are engaged with the outer fitting end S1 and the inner fitting end S2. In addition, the lower end portion 72a of the elastic dome 72 has a larger outer diameter than that of the continuous dome portion at the lower end portion, and the upper surface of the lower end portion 72a serves as the pressed surface 74 . Also, instead of the elastic dome, a conventionally known crimping tool may be used. For example, it is a bellows type barrel with a top at the bottom opening that can be squeezed by fingers on both sides, or an elastic barrel with a top at the bottom opening.

The cover member 76 is rotatably fitted to the lower end of the outer circumferential wall 40 at a lower end (engaging end 78 ) of the barrel wall covering the outer surface of the outer circumferential wall 40 . In addition, the upper end of the cylinder wall is bent downward and inward to form a pressing portion 80 , which is provided so as to be able to press the pressed surface 74 .

In the assembling process of the stopper 16, after attaching the stopper base 18 to the dropper tube 30, and assembling the piston member 60 and the movable stopper part 38 in sequence, the gap between the movable stopper part 38 (G) The lower end (72a) of the elastic dome 72 is fitted in the upper portion. Since the gap G communicates below the stopper base 18, the air in the gap does not escape, and problems such as floating the lower end of the elastic dome 72 can be avoided. In this state, the cover member 76 is further fitted to the outer side of the outer peripheral wall 40 , and the pressing surface 74 of the lower end 72a is pressed by the pressing portion 80 of the cover member 76 .

When the dropper container is used, the outer peripheral wall 40 is rotated together with the cover member 76 (refer to FIG. 3 ), so that it is screwed off from the neck portion 6 . Then, the movable stopper 38 rises by the elastic force of the coil spring 70 , and the air in the elastic dome 72 is sucked into the space between the movable stopper 38 and the stopper base 18 , and the container body 4 ) is sucked up into the dropper tube 30 . Thereafter, the stopper 16 is lifted from the container 2 side, and the elastic dome 72 is compressed to drip the liquid from the dropper tube 30 .

Then, the dropper container which concerns on 2nd Embodiment of this invention is demonstrated. Hereinafter, only the configuration different from the dropper container according to the first embodiment described above will be described, and the same reference numerals are attached to the same configuration as the dropper container according to the first embodiment, and the description thereof is omitted.

Fig. 4 is an enlarged view of the main part of the dropper container according to the second embodiment of the present invention. 5 is a view looking up at the packing of FIG. 4 from below. FIG. 6 is a partially enlarged view of FIG. 4 .

In the assembly process of the stopper 16, with the coil spring 70 mounted between the bottom wall part 64 and the flange-shaped top wall part 52, the piston part 66 is inserted into the inner surface of the inner peripheral wall 50 ( The locking cylinder part 58 of the movable stopper part 38 is inserted into the inner cylinder part 62A of the piston member 60, while sliding it upward to 50A. When the locking protrusion 58b of the locking cylinder 58 is overturned upward by the temporary stop projection 62C provided on the inner surface 62AA of the inner cylinder 62A, the piston member 60 alone is moved to the movable stopper 38 ) is temporarily fixed.

Thereafter, the assembly in which the stopper base 18 and the dropper tube 30 are assembled is assembled to the movable stopper 38 . At this time, with the upper part of the cylinder part 20 of the stopper base 18 fitted in the lower part of the leg cylinder part 68 of the piston member 60, the piston member 60 and the coil spring 70 are moved up and down. While compressively deforming in the direction, it rises by a predetermined amount with respect to the movable stopper 38 . Next, the engaging projection 58a of the locking cylinder portion 58 is made to enter the engaging recessed portion 32a of the dropper tube 30 . At this time, or thereafter, according to the urging force of the coil spring 70 , the piston member 60 is pressed against the movable stopper portion 38 , and the cylinder portion 20 in the leg tube portion 68 moves up and down the entire length. is fitted across

A member composed of the inner peripheral wall 50 , the flange-shaped top wall portion 52 , the recessed wall portion 56 , and the locking cylinder portion 58 is called the cylinder portion 100 .

In the locking cylinder part 58 corresponding to the inner peripheral wall of the cylinder part 100, the valve body 27 which closes the upper end opening of the dropper pipe|tube 30 freely is provided. The valve body 27 is disposed on the central axis of the container body 4 , and is connected to the upper end of the locking cylinder portion 58 through the bridge portion 29 . A plurality of bridge portions 29 are arranged at intervals in the circumferential direction. As will be described later in the dropper tube 30, when the movable stopper 38 rises with respect to the dropper tube 30 and the upper end opening of the dropper tube 30 is opened by the valve body 27, the elasticity It communicates with the space within the dome 72 . That is, the inside of the dropper tube 30 is made to communicate with the space in the elastic dome 72.

When the dropper container is used, the outer peripheral wall 40 is rotated together with the cover member 76 (refer to FIG. 3 ), so that the movable stopper portion 38 is screwed off from the neck portion 6 . Then, the movable stopper 38 rises by the elastic force of the coil spring 70 , and the air in the elastic dome 72 is sucked into the space between the movable stopper 38 and the stopper base 18 , and the valve body 27 ) opens the upper opening of the dropper tube 30 , the liquid in the container body 4 is sucked up into the dropper tube 30 . Thereafter, the stopper 16 is lifted from the container 2 side, and the elastic dome 72 is squeezed so that the liquid can be dripped from the dropper tube 30 .

According to this dropper container, as described above, the movable stopper 38 is detached from the container body 4 and the contents are taken out from the dropper tube 30 . After that, when the movable stopper 38 is attached to the container body 4 , when the movable stopper 38 is lowered with respect to the stopper base 18 , the piston 66 of the stopper base 18 is movable. The internal volume of the cylinder part 100 is reduced by sliding relatively upward in the cylinder part 100 of the stopper part 38 .

At this time, on the lower surface of the packing 28 disposed between the stopper base 18 and the upper end opening edge of the neck portion 6 of the container body 4, a pressing protrusion 28b protruding downward is formed (Fig. 5, see Fig. 6). Therefore, between the stopper base 18 and the said upper end opening edge of the container body 4, the communication clearance gap 28c which communicates the inside and the outside of the container body 4 is formed (refer FIG. 6). Accordingly, the above-described decrease in the internal volume of the cylinder portion 100 is through the vent hole 54, the space in the elastic dome 72, the dropper tube 30, the container body 4, and the communication gap 28c. It exhausts to the container body 4, and the internal pressure rise of the container body 4 is suppressed. Thereby, irrespective of the residual amount of the content in the container body 4, the content suction amount to the dropper tube can be made constant with precision.

Then, by further lowering the movable stopper portion 38, the packing 28 is pressed between the stopper base 18 and the upper opening edge of the container body 4, in particular, the pressing protrusion 28b is pressed against the container body ( 4) is pressed against the edge of the upper opening (see Fig. 4). At that time, since the to-be-projected concave portion 28d is formed directly above the crimping protrusion 28b, the deformation to the upper surface side of the crimping protrusion 28b is permitted by the protruding concave portion 28d (Figs. 5 and 6). see). Accordingly, the compression to the upper side of the pressing protrusion 28b occurs smoothly without large resistance. For this reason, the sealing property between the stopper base part 18 by the packing 28 and the said upper end opening edge of the container body 4 is ensured favorably.

In addition, in the dropper container, the valve body 27 closes the upper opening of the dropper tube 30 in the initial state. Therefore, for example, even if the stopper 16 is operated unintentionally in the initial state, it becomes possible to suppress that the content in the container body 4 flows into the dropper tube 30 by mistake. Therefore, it is possible to ensure the amount of the contents coming out from the dropper tube 30 with high precision and constant. Further, for example, even if the contents of the container body 4 flowed into the dropper tube 30 by inversion of the dropper container in the initial state, the contents can be blocked by the valve body 27 . Accordingly, it is also possible to restrict the contents from flowing into the space within the elastic dome 72 .

According to the present invention, since the lower end of the elastically deformable member is fitted into each upper end of the outer peripheral wall and the inner peripheral wall disposed with a gap therebetween, the repulsion of air is small compared to the case where the elastically deformable member is fitted into the fitting groove. It is possible to provide a dropper container that can be removed and inserted smoothly, and has good set properties.

2 Courage
4 vessel body
6 caliber
8 No rubbing
10a awning
10 main body
12 Loving Department
16 stopper
18 stopper donation
20 cylinder
21 annular plate part
22 board
24 hanging wall
26 slit
28 packing
30 dropper tube
32 blind barrel
32a engagement recess
34 Chongqing Tongbu
34a Fitting Groove
36 Daegyeong Tongbu
36a ring retaining groove
37 O-ring
38 Movable stopper
40 outer wall
40a lower half
40b upper half
48 Connections
50 inner wall
52 Flange-shaped top wall
54 ventilation holes
56 recessed wall
58 jam barrel
58a engaging claw
60 piston member
62A inner barrel
62B outer barrel
64 floor wall part
66 piston
68 Legs
70 coil spring
72 Elastic deformable member (elastic dome)
72a lower part
74 Pressure side
76 Cover member
78 engagement end
80 press
S1 end for outer fit
S2 end for inner fit
A void
G gap

Claims (5)

A container (2) having a container body (4) in which the neck portion (6) stands up from the body portion through the shoulder portion;
The stopper base 18 placed on the mouthpiece 6, the movable stopper 38 installed so as to be freely raised and lowered in a state of being pressed upward with respect to the stopper base 18, and the movable stopper 38. An elastic deformable member 72 covering the upper surface and a dropper tube 30 extending downwardly below the container 2 in connection with the stopper base 18 below the engaging recess 32a formed on the upper portion of the tube wall. and a stopper 16 that
The stopper base (18) has a substrate portion (22) protruding outward at a connection point with the dropper tube (30), and engages the substrate portion (22) on the upper side of the aperture (6),
The movable stopper 38 is a gap G between the outer peripheral wall 40 fitted with the lower half 40a to the outer surface of the bore 6 and the inner surface of the upper half 40b of the outer peripheral wall 40 ) and has an inner circumferential wall 50 connected to the upper half 40b, and extends downward from the upper portion of the inner circumferential wall 50 through the flange-shaped top wall portion 52 facing inward. and an engaging claw 58b inserted into the engaging concave portion 32a is laid on the inner surface of the engaging tube portion 58, and the stopper base 18 and the movable stopper 38 A piston member (60) in liquid-tight contact with the inner surface of the inner peripheral wall (50) is installed between the flange-shaped top wall parts (52),
A dropper container in which the lower end (72a) of the elastically deformable member (72) is fitted into the upper portion of the gap (G) between the outer peripheral wall (40) and the inner peripheral wall (50).
According to claim 1,
The gap (G) forms an exhaust passage communicating downward of the stopper base (18) through the gap (A) between the substrate portion (22) and the outer peripheral wall (40).
3. The method of claim 2,
The lower half 40a of the outer circumferential wall 40 is screwed onto the outer surface of the bore 6, and each part of the inner circumferential wall 50 and the outer circumferential wall 40 in the circumferential direction is connected to a connecting piece 48. , and at the same time as connecting to, the locking wall part 24 stands in the gap G of the inner peripheral wall 50 and the outer peripheral wall 40 at the outer peripheral end of the substrate part 22, and the locking wall part 24 forms a rotation stop member of the closure base (18) with respect to the movable closure (38) and engages the connecting piece (48).
4. The method according to any one of claims 1 to 3,
The stopper 16 is fitted with the lower portion of the outer peripheral wall 40 of the movable stopper portion 38 and simultaneously presses the lower end portion 72a of the elastically deformable member 72 from the upper side. A dropper container provided with a cover member (76) having a top side, wherein an upper surface of the stopper (16) is formed on an upper outer surface of the cover member (76) and an upper surface of the elastically deformable member (72).
4. The method according to any one of claims 1 to 3,
The piston member 60 includes an outer cylinder portion 62B having a piston portion 66 in liquid-tight contact with the inner surface of the inner circumferential wall 50, and an inner cylinder portion 62A into which the engaging cylinder portion 58 is inserted. and,
A dropper container in which a temporary stopping projection 62C which engages from above with respect to the locking projection 58b laid on the outer surface of the locking tube 58 is laid on the inner surface 62AA of the inner tube 62A.

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