WO2015002296A1

WO2015002296A1 - Container for eye drops

Info

Publication number: WO2015002296A1
Application number: PCT/JP2014/067911
Authority: WO
Inventors: 繁彦小久保
Original assignee: ロート製薬株式会社
Priority date: 2013-07-05
Filing date: 2014-07-04
Publication date: 2015-01-08
Also published as: TW201512047A; JP6512483B2; JPWO2015002296A1

Abstract

　This container for eye drops is provided with: a liquid reservoir (2) for accommodating a liquid; a dripping part (19) projecting from an opening end part (6t) of the liquid reservoir (2), the liquid being allowed to drip through said dripping part; a fixed part (20) fixed to the liquid reservoir (2) and provided so as to surround the opening end part (6t); a hinge part (21) provided to the fixed part (20); and a cap part (22) linked to the fixed part (20) via the hinge part (21), said cap part having a plugging part (35) for sealing the tip part of the dripping part (19) in watertight fashion, and said cap part being capable of opening and closing the dripping part (19) using the plugging part (35) by turning about a turning axis (L1) of the hinge part (21). The hinge part (21) is provided so that the turning axis (L1) is positioned closer to the dripping part (19) than the opening end part (6t) in the height direction of the liquid reservoir (2).

Description

Eye drops container

This invention relates to an eye drop container used for storing and dropping eye drops. This application claims priority based on Japanese Patent Application No. 2013-142184 filed in Japan on July 5, 2013, the contents of which are incorporated herein by reference.

Generally, an eye drop container includes a liquid reservoir (also referred to as a “container main body”) that stores eye drops, a pouring nozzle that drops the eye drops, and a cap that closes the storage container. The pouring nozzle of the ophthalmic container has a protruding shape with a certain length so that the ophthalmic solution accommodated in the storage container can be dropped while the container is inclined obliquely. In addition, the cap has a sealing means constituted by, for example, the top surface itself or a plug member provided on the top surface. The sealing means seals the tip of the pouring nozzle by pressing the tip of the pouring nozzle, inserting it into the tip of the pouring nozzle, or combining these means to ensure liquid tightness. is doing.

As a cap which is a closure member of a storage container, there is a separation type cap such as a twist type cap. In addition, a hinge-type cap that can be opened and closed with one hand is known in order to improve usability (for example, Patent Document 1).
In general, the liquid tightness of the eye drop container by the cap is such that the tip of the dispensing nozzle and a plug member provided on the cap are engaged, and a liquid-tight portion (that is, a seal) is formed between the tip of the dispensing nozzle and the plug member. It is secured by forming (region). For example, in an eye drop container using a separable cap that is movable in the vertical direction, the sealing means (also referred to as a capping portion) provided on the cap and the tip of the dispensing nozzle are relatively moved up and down and engaged. Therefore, liquid tightness is secured. When the cap is put on the liquid-tight portion, the liquid-tightness of the liquid-tight portion may fluctuate as the engagement state between the tip of the dispensing nozzle and the plug member may fluctuate. Therefore, in order to improve the liquid tightness of the eye drop container, the liquid tight portion needs to be formed with a sufficient dimension in a direction following the direction in which the cap moves.

Japanese Unexamined Patent Publication No. 2002-362603

An ophthalmic container using a separation-type cap has a liquid-tight portion in the vertical direction, that is, by forming a contact width (length) between the sealing means and the dispensing nozzle. It is possible to absorb the fluctuation of the engagement state, and it is possible to ensure its liquid tightness. On the other hand, an eye drop container using a rotating hinge-type cap must follow the rotation direction of the cap portion and have a width of the liquid-tight portion. Therefore, depending on the position where the liquid-tight portion is formed, the liquid-tight portion may be provided obliquely, and there is a problem that the container design becomes complicated.
On the other hand, the eye drop container of Patent Document 1 expands the inner peripheral surface of the tip of the pouring nozzle into a tapered shape and regulates the fitting direction of the plug member, so that the tip of the pouring nozzle and the sealing means The variation of the engagement state is absorbed. However, the eye drop container of Patent Document 1 has room for improvement from the viewpoint of ensuring the liquid tightness of the eye drop container more efficiently.

Therefore, an object of the present invention is to provide an ophthalmic container that can ensure high liquid-tightness when closed.

An ophthalmic container according to a first aspect of the present invention surrounds a liquid reservoir that contains a liquid, a dropping portion that projects from the opening end of the liquid reservoir and drops the liquid, and the opening end. A fixed portion that is provided and fixed to the liquid reservoir; a hinge portion that is provided on the fixed portion; and is connected to the fixed portion via the hinge portion, and the tip of the dripping portion is sealed in a liquid-tight manner And a cap portion that can be opened and closed by the closure portion by rotating about a rotation axis of the hinge portion, and the hinge portion includes the liquid storage portion. In the height direction of the vessel, the rotation axis is provided so as to be positioned closer to the dripping portion than the opening end portion.
According to the first aspect of the present invention, in the height direction of the liquid reservoir, the rotation axis of the hinge portion is set at a position on the dropping portion side higher than the opening end portion of the liquid reservoir. The tip part of the dropping part can be arranged along the direction in which the cap part rotates. That is, as the cap part rotates (cap part opening and closing operation), the capping part is opened and closed in an appropriate direction with respect to the dropping part, and the liquid-tight part can be set more reliably, so that the liquid-tightness is good. Can be secured.

According to the second aspect of the present invention, in the eye drop container according to the first aspect, the rotation axis of the hinge part is formed by the tip part of the dropping part and the plug part contacting each other. It may be provided at a position substantially the same height as the liquid-tight portion.
According to the second aspect of the present invention, since the height of the rotation axis and the height of the liquid-tight portion are substantially the same, the direction in which the cap portion rotates, that is, the direction in which the plugging portion rotates. The direction in which the closing portion seals against the dropping portion can be set to be approximately equal, and the variation in the engagement state between the closing portion and dropping portion of the cap portion can be suppressed. As a result, it is not necessary to set the dimensions of the capping part and the dropping part wider than the liquid-tight part in order to absorb the fluctuation of the engagement state with the cap part. Moreover, liquid-tightness can be ensured more stably and efficiently in a portion near the tip of the dropping portion. Furthermore, since the load applied to the liquid-tight part can be reduced by suppressing the change in the engagement state between the closure part and the dropping part with the rotation of the cap part, the container such as a crack in the dropping part or the closing part can be damaged. Can also reduce the risk of occurrence.

According to a third aspect of the present invention, in the eye drop container according to the first or second aspect, the fixing portion is provided with either one of an engaging portion or an engaged portion, and the cap portion. Further, when the tip end portion of the dripping portion is sealed by the plugging portion, the engaged portion that engages the engaging portion provided in the fixing portion or the engaged portion formed in the fixing portion An engaging portion that engages with the portion may be provided.
According to the 3rd aspect of this invention, the state which the cap part closed can be maintained reliably.

According to a fourth aspect of the present invention, in the eye drop container according to the third aspect, the engaging part or the engaged part provided in the fixing part includes the dropping part and the hinge part. It may be provided between.
According to the 4th aspect of this invention, it can prevent that an engaging part or an engaged part becomes obstructive at the time of instillation.
In addition, when providing the said engaging part or the said to-be-engaged part in the said fixing | fixed part, the said engaging part or the said to-be-engaged part should be provided in the substantially same height position as the rotating shaft line of a hinge part. Is more desirable.

According to the fifth aspect of the present invention, in the eye drop container according to the third or fourth aspect, the engaging part or the engaged part provided in the fixing part is a rotation of a hinge part. You may provide along the radial direction of the circle | round | yen centering on an axis.
According to the fifth aspect of the present invention, since the engaging portion can be provided at a position further away from the dropping portion, the engaging portion does not get in the way when instilled, and the cap portion that is a lid member The closed state can be reliably maintained.

According to the sixth aspect of the present invention, the eye drop container according to any one of the first to fifth aspects has a horizontal position on the cap portion in a state where the dropping portion is closed by the closure portion. A claw portion protruding in the direction may be provided. The claw portion may be positioned at substantially the same height as the rotation axis of the hinge portion.
According to the sixth aspect of the present invention, it is easy to apply a force when the tip of the dripping portion is sealed by the plugging portion, that is, when the cap portion is opened and closed.

According to a seventh aspect of the present invention, in the ophthalmic container according to the sixth aspect, the cap portion includes a top wall portion, and the drip portion is closed by the plugging portion. An upper peripheral wall part that hangs down from the periphery of the top wall part so as to surround the periphery, and is connected to the fixing part via the hinge part in a part of the upper peripheral wall part, and the dropping part is closed by the plug part In the state, the claw portion may be provided at a vertical intermediate portion of the upper peripheral wall portion.
According to the seventh aspect of the present invention, when the cap portion is closed, the cap portion can be rotated by stably placing a finger between the upper peripheral wall portion located below the claw portion and the claw portion. .

According to each aspect of the present invention described above, in the eye drop container that seals the tip of the pouring nozzle by rotating the cap portion, the effect that the liquid-tightness of the tip of the pouring nozzle can be increased is obtained. It is done.

It is the front view which showed the state which opened the lid | cover of the container for eyedrops concerning the 1st Embodiment of this invention. It is the front view which showed the principal part of the state which closed the lid | cover of the container for eyedrops concerning the 1st Embodiment of this invention. It is the side view which showed the principal part of the state which closed the lid | cover of the eye drop container which concerns on the 1st Embodiment of this invention. FIG. 2 is a front cross-sectional view taken along line XX shown in FIG. 2B, which is a main part of the eye drop container of FIG. FIG. 2B is a front sectional view taken along line XX shown in FIG. 2B. It is side surface sectional drawing in the ZZ line | wire shown to FIG. 2A. It is front sectional drawing which showed the principal part of the state which opened the lid | cover of the container for eyedrops concerning the 2nd Embodiment of this invention. It is front sectional drawing which showed the principal part of the state which closed the lid | cover of the container for eyedrops concerning the 2nd Embodiment of this invention. It is the front view which showed the principal part of the state which opened the lid | cover of the eye drop container which concerns on the 3rd Embodiment of this invention. It is front sectional drawing which showed the principal part of the state which opened the lid | cover of the container for eyedrops concerning the 3rd Embodiment of this invention. It is the side view which showed the principal part of the state which closed the lid | cover of the container for eyedrops concerning the 3rd Embodiment of this invention. It is the front sectional view showing the state where the lid of the eye drop container of the modification of the 1st embodiment of the present invention was opened.

Hereinafter, an eye drop container according to each embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a state in which the lid of the eye drop container 1A according to the first embodiment is opened. FIG. 2A is a front view showing a main part of the eye drop container 1A according to the present embodiment in a state where the lid is closed. FIG. 2B is a side view of FIG. 2A.

As shown in FIG. 1, FIG. 2A, and FIG. 2B, an eye drop container 1 A according to this embodiment includes a liquid reservoir 2 that is a container body, a dispensing nozzle 3, and a lid member 4. The dispensing nozzle 3 is supported by the liquid reservoir 2. The lid member 4 is configured to cover the upper part of the liquid reservoir 2.
As shown in FIG. 3, the liquid reservoir 2 includes a reservoir 5 and a mouth-and-neck portion 6. The storage unit 5 is a liquid storage unit that stores a liquid (ophthalmic solution) inside. The mouth-and-neck portion 6 is formed so that the upper end of the storage portion 5 protrudes upward in a cylindrical shape.

As shown in FIGS. 1 and 3, the storage portion 5 includes a bottom wall portion 7, a side wall portion 8, and a shoulder portion 10. The side wall portion 8 is erected from the outer periphery of the bottom wall portion 7. As shown in FIG. 3, the shoulder portion 10 extends from the upper end of the side wall portion 8 to the opening portion 9 so as to close the inner hole S1 of the storage portion 5 leaving the central opening portion 9. A corner 5 a is formed between the shoulder 10 and the side wall 8.
As shown in FIGS. 1 and 2B, the side wall portion 8 includes a pair of flat

side plate portions

8a and 8a and a pair of curved

side plate portions

8b and 8b, and is formed in a substantially flat cylindrical shape in plan view. . The pair of flat

side plate portions

8a, 8a are formed wide in the horizontal direction and face each other. The pair of curved

side plate portions

8b and 8b are formed in a substantially arc shape in plan view, and are formed to have a smaller dimension in the horizontal direction (the arrow Y direction shown in FIG. 2B) than the flat

side plate portions

8a and 8a.

As shown in FIG. 3, the mouth-and-neck portion 6 rises from the peripheral edge of the opening 9 of the shoulder portion 10 into a cylindrical shape having a constant diameter and opens at the upper end thereof. The inner hole S1 of the storage part 5 and the space S2 in the mouth / neck part 6 communicate with each other.
On the lower part (bottom wall 7 side) of the outer peripheral surface 6a of the mouth-and-neck part 6, a ridge 15 extending outward in the circumferential direction is provided. The ridge 15 has a configuration capable of engaging a lid member 4 described later.
The reservoir 5 stores eye drops (eye drops) in the interior (inner hole S1).

As shown in FIG. 4A, the dispensing nozzle 3 is a member having a circular cross section, and has an ophthalmic solution injection hole 16 penetrating in one direction. The pouring nozzle 3 includes an inner plug portion 17, an overhang wall portion 18, and a dripping portion 19. The inner plug portion 17 is formed in a cylindrical shape, and is inserted into the liquid reservoir 2 in a liquid-tight manner from the opening end portion 6t of the mouth and neck portion 6 shown in FIG. The overhanging wall portion 18 is formed at the upper end of the inner plug portion 17 and is formed in an annular shape so as to engage with the upper end surface 6 b of the mouth-and-neck portion 6. The dropping part 19 is formed to project upward from the center of the upper surface of the overhanging wall part 18 and drops the ophthalmic solution in the storage part 5 from the tip edge 19t.

As shown in FIG. 1, the lid member 4 includes a fixing portion 20, a hinge portion 21, and a cap portion 22. The fixing part 20 is fixed to the corner part 5 a in the vicinity of the shoulder part 10 of the liquid reservoir 2. The hinge portion 21 is provided on the fixed portion 20. The cap part 22 is connected to the fixed part 20 via the hinge part 21 so as to be rotatable. The cap part 22 opens and closes the liquid injection hole 16 (see FIG. 3) of the discharge nozzle 3.
As shown in FIG. 4A, the fixing portion 20 includes a lower peripheral wall portion 25, an upper wall portion 26, and a gripping wall portion 27. The lower peripheral wall portion 25 is formed substantially along the shape of the side wall portion 8 of the storage portion 5 and is provided so as to cover the shoulder portion 10. The upper wall portion 26 is disposed on the upper end of the lower peripheral wall portion 25. The gripping wall portion 27 is configured to hang down from the lower surface of the upper wall portion 26 in a circular arc shape and grip the mouth-neck portion 6.

The upper wall portion 26 is formed in a flat plate shape, and is disposed horizontally at the upper end of the lower peripheral wall portion 25. The upper wall portion 26 is formed with an opening 14 through which the pouring nozzle 3 is inserted in the vicinity of the center of the plate surface.

The lower peripheral wall portion 25 is formed of a plate member as shown in FIG. In the state where the lid member 4 is attached to the liquid reservoir 2, the lower peripheral wall portion 25 rises from the lower end (corner portion 5 a) of the shoulder portion 10 along the side wall portion 8, and the shoulder portion 10 and the mouth and neck portion 6 is fixed to the upper part of the storage part 5 so that it may be included. As shown in FIG. 1, the lower peripheral wall portion 25 has a plate-like extending portion 30 on the hinge portion 21 side with the pouring nozzle 3 as a boundary. The extending portion 30 is formed along the shape of the flat side plate portion 8 a and the curved side plate portion 8 b of the storage portion 5, and extends to an intermediate portion in the height direction of the dripping portion 19.
As shown in FIGS. 3 and 4B, a pair of engaged portions 36 each including a protrusion extending in a substantially horizontal direction is formed on the lower portion of the inner wall surfaces of the extending portion 30 facing each other (see FIG. 3). 3, one of the engaged portions 36 is not shown).

The grip wall 27 is a plate member that hangs along the periphery of the opening 14 formed in the upper wall 26 as shown in FIG. The gripping wall portion 27 sandwiches the outer peripheral surface 6 a of the mouth and neck portion 6 from the opposing direction of the gripping wall portion 27. Grooves 24 are formed in the inner wall surface of the gripping wall portion 27 in the circumferential direction. The groove 24 is configured to be fitted to the ridge 15 of the mouth-and-neck portion 6 so that the gripping wall portion 27 can be firmly fixed to the mouth-and-neck portion 6.

As shown in FIGS. 4A and 4B, the cap portion 22 includes a top wall portion 29 and an upper peripheral wall portion 28. In the state where the cap part 22 of the lid member 4 is closed, the top wall part 29 covers the upper part of the dropping part 19. The upper peripheral wall portion 28 hangs down from the peripheral edge 29b of the top wall portion 29 so as to surround the dripping portion 19 when the cap portion 22 of the lid member 4 is closed (hereinafter sometimes referred to as “when closed”). Is formed.
The top wall portion 29 includes a plug portion 35 formed at the center of the lower surface 29a. The closing portion 35 is a protrusion formed on the lower surface 29 a of the top wall portion 29 and is configured to be fitted into the tip of the liquid injection hole 16.
The upper peripheral wall portion 28 is formed so that the surface thereof is substantially flush with the surface of the lower peripheral wall portion 25.
A claw portion 31 protruding in the horizontal direction is formed at the edge of the upper peripheral wall portion 28 on the side opposite to the side where the hinge portion 21 is provided. The claw part 31 is configured so that the user can easily open and close the cap part 22 by hooking a finger on the claw part 31.

As shown in FIGS. 1 and 4B, a fitting recess 37 is formed in the vicinity of the hinge portion 21 of the upper peripheral wall portion 28. The fitting recess 37 is formed by recessing the plate surface in the lateral direction (arrow Y direction shown in FIG. 4B) in accordance with the shape of the extension 30 so as to be opposed to the extension 30 when the lid is closed. ing.
On the surface of the fitting recess 37, there is formed an engaging portion 38 formed of a protrusion that can be engaged with and engaged with the engaged portion 36 formed on the inner wall surface of the extending portion 30. ing. The fitting recess 37 is fitted to the extension 30 when the lid is closed.
The engaging portion 38 and the engaged portion 36 are provided so that they can be engaged with each other on the hinge portion 21 side (near the hinge portion 21) with the dropping portion 19 as the center. For this reason, it is comprised so that the cap part 22 can engage with the fixing | fixed part 20 reliably.

As shown in FIGS. 3 and 4A, the cap portion 22 is formed integrally with the hinge portion 21 and the fixed portion 20, and is provided so as to be rotatable with respect to the fixed portion 20.
As shown in FIG. 2A, the hinge portion 21 includes a lower connecting portion 21a and an upper connecting portion 21b, and the rotation axis L1 is along the depth direction of FIG. 2A (the arrow Y direction shown in FIG. 2B). Is provided. The lower connection part 21 a is connected to the upper end of the extension part 30. The upper connecting portion 21b is formed at a position facing the lower connecting portion 21a. And between the lower connection part 21a and the upper connection part 21b, the bending part P formed thinly is formed, and the fixing | fixed part 20 and the cap part 22 are connected so that bending is possible.
As shown in FIG. 1, the hinge portion 21 having the above-described configuration is provided so that the rotation axis L 1 is positioned near the tip of the dropping portion 19. Specifically, in the height direction (the direction of the arrow T shown in FIG. 1), the rotation axis L1 is located above the base end of the dropping part 19 (that is, the opening end 6t of the mouth-and-neck part 6 shown in FIG. 3). ) It is provided at a position where the height is 19 t or less. When the cap portion 22 is rotated about the rotation axis L 1 of the hinge portion 21, the tip edge 19 t of the dropping portion 19 is disposed at a position along the path of the closing portion 35. As a result, the liquid injection hole 16 shown in FIG. 3 can be closed by the plug portion 35 as the cap portion 22 rotates toward the fixed portion 20.

The liquid reservoir 2 is formed of a synthetic resin material such as a polyester resin, a polyolefin resin, or an elastomer. Specifically, these synthetic resin materials are preferably polyethylene terephthalate, polyethylene naphthalate, polyethylene, polypropylene, elastomer and the like from the viewpoint of ease of handling. Moreover, the pouring nozzle 3 is formed of a synthetic resin material such as a polyolefin resin. Specifically, the synthetic resin material forming the dispensing nozzle 3 is preferably polyethylene, polypropylene or the like in terms of ease of handling.

In the fixing unit 20 having the above configuration, when the upper portion of the liquid reservoir 2 is covered, the groove 24 provided in the holding wall portion 27 engages with the protrusion 15, and the holding wall portion 27 becomes the mouth and neck portion. 6 is gripped from the side. Further, an inner plug portion 17 is inserted into the mouth / neck portion 6 and fixed in a liquid-tight manner. Further, the cap portion 22 is configured such that when the cap is closed, the capping portion 35 is liquid-tightly inserted into the tip of the liquid injection hole 16 of the dropping portion 19, and the tip of the dispensing nozzle 3 or the dropping portion 19 is liquid-tightly sealed. It is configured. A portion where the capping portion 35 and the dropping portion 19 are in liquid-tight contact and sealing the dropping portion 19 is a liquid-tight portion F (see FIGS. 4A and 4B).

Next, a method of using the eye drop container 1A according to the present embodiment and an operation and function when the eye drop is instilled from the eye drop container 1A will be described.
When using the eye drop container 1 A, the user puts a finger on the claw portion 31 of the cap portion 22 shown in FIG. 4A and moves the claw portion 31 upward relative to the fixed portion 20. Then, the engaging portion 38 formed in the fitting concave portion 37 of the cap portion 22 shown in FIGS. 1 and 4B gets over the engaged portion 36 formed on the inner wall surface of the extending portion 30, and with respect to the extending portion 30. The engagement is released, the cap portion 22 is rotated about the rotation axis L1 and the cap portion 22 is opened.
Then, after instillation, the user rotates the cap portion 22 in a direction to cover the fixing portion 20, engages the engaging portion 38 while generating a click sound in the engaged portion 36, and closes the cap portion 22.

According to the eye drop container 1 A according to the present embodiment, the cap portion 22 is rotatably connected to the fixed portion 20 by the hinge portion 21, so that the user hooks his finger on the claw portion 31 of the cap portion 22. Thus, the cap portion 22 can be easily opened and closed with one hand.

As shown in FIGS. 1 and 3, the eye drop container 1 A according to the present embodiment has a rotation axis L 1 positioned substantially at the same height as the tip end portion 19 a of the dropping portion 19, more preferably the tip edge of the dropping portion 19. Thus, the rotation axis L1 of the hinge portion 21 is provided. For this reason, when the cap part 22 is closed and the plug part 35 faces vertically downward, the liquid injection hole 16 can be closed. That is, since the rotation axis L1 is located in the vicinity of the tip of the dripping portion 19, the axis L2 of the plugging portion 35 and the axis L3 of the liquid injection hole 16 are as shown in FIG. 4A. When the tip is closed, the rotation locus of the closing portion 35 is on the circumference tangent. For this reason, it is possible to smoothly insert the plug part 35 into the tip of the dropping part 19 by aligning both the axes L2 and L3. As a result, when the lid member 4 provided with the hinge portion 21 for rotating the cap portion 22 is used for the eye drop container 1A, the ophthalmic solution can be reliably sealed. The tip position of the dropping part 19 refers to a position from the liquid-tight part F formed by the liquid-tight contact between the dropping part 19 and the stopper part 35 to the tip edge 19t.

In addition, the plug portion 35 and the tip of the dropping portion 19 are positioned on the circumferential tangent line formed by the rotation trajectory of the cap portion 22 when the plug portion 35 is closed. The portion 19 is engaged along the direction of the axis L2. For this reason, it is possible to prevent the plug portion 35 from coming into contact with the dripping portion 19 and deforming it when the plug portion 35 is inserted, thereby preventing the plug portion 35 from being deteriorated and sealing the liquid injection hole 16 having high liquid tightness. Stop can be maintained for a long time.

Moreover, as shown to FIG. 4B, by setting it as the structure which the to-be-engaged part 36 and the engaging part 38 engage, the force from the direction which is laterally or inclined to the cap part 22 was added at the time of lid closing. It is difficult to open the lid alone. On the other hand, the cap portion 22 is opened when a vertically upward force is applied to the cap portion 22 during closing. That is, the closed state of the cap portion 22 can be reliably maintained.

Next, a second embodiment of the present invention will be described with reference to FIGS.
In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In the eye drop container 1B according to the present embodiment, the engaged portion 36 is formed at substantially the same position as the height position of the rotation axis L1, as shown in FIG.

Further, the dropping part 19 is provided at a position farther from the hinge part 21 than the center of the fixing part 20 in the horizontal direction. Therefore, compared with the first embodiment, the engaged portion 36 and the dropping portion 19 are in a separated position, so that the engaged portion 36 does not get in the way when instilled.

As shown in FIG. 6, the plug portion 35 of the present embodiment is formed by an annular wall portion 35 w that hangs down from the lower surface 29 a of the top wall portion 29 and that fits the tip of the dripping portion 19 in a liquid-tight manner. . A liquid-tight portion F is formed by contact between the inner wall surface of the annular wall portion 35w and the outer peripheral surface 19b of the dropping portion 19, and the ophthalmic solution is liquid-tightly sealed. Even in the case of such a sealing structure, the height of the rotation axis L1 is positioned at a height close to the tip (liquid-tight part F) of the dropping part 19 to thereby make the first embodiment described above. The same actions and functions as when the plug is closed are exhibited. And about the eye drop container 1B which concerns on this embodiment, the liquid-tightness at the time of closure can be improved similarly to the case of the eye drop container 1B which concerns on 1st Embodiment.

Next, a third embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the same components as those in the first embodiment or the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

As shown in FIGS. 7 and 8, the eye drop container 1 C according to this embodiment is different from the first embodiment and the second embodiment in the configuration of the engaging portion and the engaged portion. Specifically, a protrusion 43 for forming the engaged portion 36 is provided on the upper wall portion 41 of the fixed portion 20, and the cap portion 22 is formed so as to include the protrusion 43. This is different from the first embodiment and the second embodiment.

As shown in FIG. 8, the protruding portion 43 includes an inner plate portion 43a and a top plate portion 43b. The inner side plate portion 43a is formed so as to rise at a position entering the inner side from the upper end of the lower peripheral wall portion 25. The top plate portion 43b is formed to extend from the upper end of the inner plate portion 43a to the opening 14 (the upper end of the gripping wall portion 27) from which the dropping portion 19 protrudes.

The extending portion 42 has the protruding portion 43 while gradually reducing the width dimension (dimension in the direction of arrow W in FIG. 7) from the upper end of the lower peripheral wall portion 25 near the dispensing nozzle 3 toward the hinge portion 21 in a front view. It extends upward beyond and extends to the tip height of the dropping part 19. The extending portions 42 are provided so as to face each other in the depth direction (the rotation axis L1 direction) in FIG. The hinge portion 21 projects from the outer surface of the fixed portion 20 at the upper end portion 42 a of the extending portion 42.
With this configuration, the fixed portion 20 protrudes from the upper end of the lower peripheral wall portion 25 except for a portion where the lower peripheral wall portion 25 is provided on the shoulder portion 10 of the liquid reservoir 2 and the extending portion 42 is formed. The upper wall portion 41 forming the portion 43 is provided.

The engaged portion 36 is formed on the surface of the inner plate portion 43a located on the opposite side of the hinge portion 21 with the dropping portion 19 as a boundary in a front view. Further, the engaged portion 36 is formed at a position lower than the protruding wall portion 18 (opening end) of the base end of the dropping portion 19. In addition, the engaged portion 36 is along the radial direction of the circumference (broken line R1 shown in FIG. 7) drawn by the plugging portion 35 around the rotation axis L1 (that is, along the tangent line of the curve drawn by the engaging portion 38). It is inclined (at an orthogonal angle).

The upper peripheral wall portion 28 of the cap portion 22 includes two

outer plate portions

28a and 28a and a claw forming wall portion 28b. The outer

side plate portions

28 a and 28 a hang down along the inner side plate portion 43 a when the cap portion 22 is closed, and are arranged to face the engaged portion 36. The nail | claw formation wall part 28b is located in the other side of the hinge part 21 in front view, and is distribute | arranged between outer

side board part

28a, 28a, and the nail | claw part 31 is formed.

An engaging portion 38 is formed on the inner wall surface of the outer plate portion 28a (that is, the surface facing the inner plate portion 43a when the lid is closed). As shown in FIG. 9, the engaging portion 38 is arranged in parallel with the engaged portion 36 at a position directly below the engaged portion 36 (on the lower peripheral wall portion 25 side) when the cap portion 22 is closed.
As shown in FIG. 9, the claw forming wall portion 28 b is formed with a dent portion 50 curved toward the hinge portion 21 side after forming a gentle inclined surface from the top wall portion 29 when the cap portion 22 is closed. The nail | claw part 31 which formed and protruded in the horizontal direction is formed. Further, the claw forming wall portion 28 b forms a claw lower wall portion 51 extending toward the lower peripheral wall portion 25 below the dent portion 50.

According to the eye drop container 1C according to the present embodiment, as shown in FIG. 7, the engaged portion 36 is a side-viewed ridge formed along the circumferential radial direction around the rotation axis L1. It is formed with concave stripes. That is, the engaged portion 36 has a positional relationship in which the rotation axis L1 is provided on the extension line of the auxiliary line M along the shape thereof, and the cap portion 22 is securely fixed by the fixing portion 20. Can do.

Also, by providing the engaged portion 36 below the overhanging wall portion 18, it is possible to avoid providing the extending portion 42 in the vicinity of the dropping portion 19. Therefore, when the eye drop is applied with the eye drop container 1C, the engaging portion can be instilled without being obstructed.

Further, the claw portion 31 is formed at substantially the same height as the rotation axis L1 when the lid is closed. That is, the claw portion 31 is formed at a position where the force can be easily applied to the cap portion 22 in the turning operation when the cap portion 22 is opened and closed. Therefore, the engagement between the engaging portion 38 and the engaged portion 36 when the cap portion 22 is closed can be set more strongly, and the closed state of the cap portion 22 can be held more reliably.

Further, according to the eye drop container 1C according to the present embodiment, the claw portion 31 is formed in the middle portion in the vertical direction of the upper peripheral wall portion 28, and the curved hair-like dent portion 50 is formed below the claw portion 31, and the dent portion. The claw lower wall portion 51 extends below 50. Therefore, when the user opens and closes the cap part 22, a finger can be stably put on the recessed part 50, and the cap part 22 can be easily opened and closed.

Further, in the eye drop container 1 C according to the present embodiment, a claw lower wall portion 51 is provided below the recessed portion 50. For this reason, when the user puts his / her finger on the recess 50 to open the cap portion 22, the lower nail wall 51 is positioned between the finger placed on the recess 50 and the dropping unit 19. As a result, it is possible to prevent the user's finger from entering the lower part of the cap part 22 and touching the dropping part 19 when the cap part 22 is opened. Therefore, according to the eye drop container 1 C, the drip portion 19 can be kept hygienic when the cap portion 22 is opened and closed.

Further, the present invention can be applied by appropriately changing or combining the arrangement of the pouring nozzle 3 and the like within a range not departing from the essence thereof. For example, as shown in FIG. 10, a pouring nozzle 3 A having a shape in which the outer peripheral surface of the tip of the dropping part 19 protrudes and a liquid-tight part provided at the tip of the dropping part 19 may be used. Even if the dispensing nozzle 3A shown in FIG. 10 is applied to the eye drop container 1A shown in FIG. 3 or the eye drop container 1C shown in FIG. 8, the same functions and effects as those of the first embodiment, that is, effective liquid tightness. An ophthalmic container having a hinge cap structure can be obtained.

When the cap portion 22 does not include the capping portion 35 and the lower surface 29a is pressed against the tip of the dropping portion 19 to seal the liquid injection hole 16 of the dropping portion 19 in a liquid-tight manner, the rotation axis of the hinge portion 21 is used. By providing L1 at the same height as the lower surface 29a, the same operation, function, and effect as in the first embodiment can be obtained.

Moreover, in 3rd Embodiment, although it has the structure by which the curved recessed part 50 was formed in the downward direction of the nail | claw part 31, and the nail | claw lower wall part 51 was formed in the downward direction, the lower surface of the claw part 31 is horizontal After extending in the direction, the recess 50 configured to be bent downward at a substantially acute angle and to be connected to the lower nail wall 51 may be formed.
Even in such a configuration, the nail wall 51 exists between the finger and the dropping part 19 when the cap part 22 is opened and closed, and the finger is prevented from entering the lower part of the cap part and coming into contact with the dropping part 19. can do. Moreover, you may form the recessed part 50 in 3rd Embodiment in the cap part 22 of 1st Embodiment and 2nd Embodiment.

Further, the engaged portion 36 and the engaging portion 38 of the first embodiment may be formed along the radial direction of the circumference around the rotation axis L1 as in the third embodiment. .

The embodiments of the present invention have been described above. However, the technical scope of the present invention is not limited to only the above-described embodiments, and combinations of components in the embodiments are changed without departing from the spirit of the present invention. It is possible to make various changes to each component or delete them. The present invention is not limited by the above description, but only by the scope of the appended claims.

According to the eye drop container, it is possible to provide an eye drop container capable of ensuring high liquid tightness when the hinge cap is closed.

1A, 1B, 1C Eye drops container 2 Liquid reservoir 6t Open end 19a Tip 19 Dropping part 20 Fixing part 21 Hinge part 22 Cap part 31 Claw part 35 Closure part 36 Engagement part 38 Engagement part L1 Rotation axis

Claims

A liquid reservoir for storing liquid;
A dropping part that protrudes from the opening end of the liquid reservoir and drops the liquid;
A fixing portion provided to surround the opening end, and fixed to the liquid reservoir;
A hinge portion provided in the fixed portion;
The closure portion is connected to the fixing portion via the hinge portion and has a closure portion for liquid-tightly sealing a tip end portion of the dropping portion, and the closure portion is rotated by rotating about a rotation axis of the hinge portion. And provided with a cap part that can open and close the dropping part,
The ophthalmic container is characterized in that the hinge portion is provided so that the rotation axis is located closer to the dropping portion than the opening end in the height direction of the liquid reservoir.
The rotation axis of the hinge part is provided at a position substantially the same height as a liquid-tight part formed by contact between the tip part of the dropping part and the plugging part. Item 5. An ophthalmic container according to Item 1.
The fixing portion is provided with either one of an engaging portion or an engaged portion,
The cap portion is formed on the engaged portion or the fixing portion that engages the engaging portion provided on the fixing portion when the tip portion of the dropping portion is sealed by the plugging portion. The ophthalmic container according to claim 1, wherein an engagement portion that engages with the engaged portion is provided.
The ophthalmic container according to claim 3, wherein the engaging portion or the engaged portion provided in the fixing portion is provided between the dropping portion and the hinge portion.
The said engaging part or said to-be-engaged part provided in the said fixing | fixed part is provided along the radial direction of the circle | round | yen centering on the said rotational axis. Container for eye drops.
In the state where the dripping portion is closed by the plugging portion,
The cap part is provided with a claw part protruding in a horizontal direction,
The ophthalmic container according to any one of claims 1 to 5, wherein the claw portion is positioned at substantially the same height as the rotation axis of the hinge portion.
The cap portion includes a top wall portion, and an upper peripheral wall portion that hangs down from a peripheral edge of the top wall portion so as to surround the dripping portion in a state where the dropping portion is closed by the plugging portion, and the upper peripheral wall portion Is connected to the fixed part through the hinge part in a part of
The ophthalmic container according to claim 6, wherein the claw portion is provided in a vertically intermediate portion of the upper peripheral wall portion in a state where the dropping portion is closed by the plugging portion.