WO2015002110A1

WO2015002110A1 - Ophthalmic preparation container

Info

Publication number: WO2015002110A1
Application number: PCT/JP2014/067269
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: 2014-06-27
Publication date: 2015-01-08
Also published as: TW201515946A; JP2019141650A; JP6542665B2; JPWO2015002110A1

Abstract

　The ophthalmic preparation container according to the present invention includes: a container body having a liquid-accommodating part and a cylindrical neck part connected to the liquid-accommodating part; a cover member having a nozzle part for liquid pouring and an engaging part capable of engaging with the container body, the cover member being engaged with the container body so as to cover the cylindrical neck part; and a cap for opening and closing a pouring mouth of the nozzle part. In the cover member, the nozzle part and the portion other than the nozzle part are integrally molded each from a different resin material, and the cover member is engaged with the container body via the engaging part in a state in which the nozzle part is in contact with the cylindrical neck part.

Description

Eye drops container

The present invention relates to an eye drop container.

Conventionally, for example, those described in Patent Document 1 are well known as eye drop containers. This eye drop container includes a flat container main body in which a chemical solution is stored, a nozzle attached to the container main body, and a cap detachably attached to the container main body so as to cover the nozzle. As is well known, the cap is removed, the nozzle tip is directed downward, the container body is lightly pressed, and the drug solution is dropped from the nozzle tip, as is well known.

In this eye drop container, the nozzle is fitted in a liquid tight state in a cylindrical mouth and neck formed in the container body. When the cap is attached, the shaft-shaped protrusion formed on the cap is inserted into the spout at the tip of the nozzle, thereby closing the spout.

In the above-mentioned conventional eye drop container, since the protrusion of the cap is inserted into the spout at the tip of the nozzle, if there is an error in these dimensions, when removing the cap, the nozzle is pulled out from the cylindrical mouth and neck with the cap. It is possible that Such inconvenience can be solved by tightening the fitting between the nozzle and the cylindrical mouth and neck. However, in this case, it is difficult to assemble the nozzle to the container body, the assemblability of the eye drop container is deteriorated, and it causes cracking in the cylindrical mouth and neck. There's a problem.

In addition, in an eye drop container, the container body is formed of a hard synthetic resin material (for example, polyethylene terephthalate) from the viewpoint of ensuring good liquid-tightness between the nozzle and the cylindrical mouth-neck portion and the above-described assembly property. On the other hand, what formed the nozzle from the soft synthetic resin material (for example, polyethylene) is known. However, since the soft synthetic resin material is sometimes concerned about the component adsorption of the eye drops, there is a case where a process for suppressing the component adsorption is separately required or the choice of the material of the nozzle is limited. Therefore, there is a problem that it is difficult to achieve both the quality stability of the eye drops and the liquid tightness and assemblability described above.

In recent years, various eye drop containers that meet user needs have been studied, such as making it possible to perform eye drops with an easy posture and improving the visibility of the nozzle position during eye drops. In terms of pursuing ease of instillation, for example, a spout is formed on the side of the nozzle so that the eyedrop container can be instilled without directing it down, or the nozzle position is eccentric from the center of the container to the outside There are things. These eye drop containers equipped with so-called atypical nozzles have a problem in that it is easy to induce assembly failure because the direction of the nozzle spout with respect to the container body is restricted.

Also, in recent years, there is a demand for an eye drop container in which the nozzle diameter is reduced so that the amount of one drop is reduced in order to prevent, for example, eyeliner makeup. In the manufacturing process of such an eye drop container, nozzles cannot be used because the nozzles are connected in a daisy chain state during storage of parts before assembly or in the nozzle supply device of the manufacturing process. I'm stuck. Since the nozzles in such a daisy chain are usually discarded, there is a problem that the yield is poor.

Japanese Patent Laid-Open No. 10-329855

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an eye drop container that contributes to an improvement in assembly and yield.

An eye drop container according to one aspect of the present invention includes a container main body having a liquid storage portion and a cylindrical mouth-neck portion connected to the liquid storage portion, a locking portion that can be locked to the container main body, and a liquid injection. A cover member that has a nozzle part for delivery and is locked to the container body so as to cover the cylindrical mouth-neck part; and a cap that opens and closes the spout of the nozzle part; The nozzle portion and other portions are integrally molded from different resin materials, and the nozzle portion is engaged with the container body via the locking portion in a state where the nozzle portion is in contact with the cylindrical mouth and neck portion. It has been stopped.

FIG. 1 (a) is a cross-sectional view (with the cap removed) of the eye drop container (first embodiment) of the present invention, and FIG. 1 (b) shows the I of (a) with the cap attached. FIG. 2A is a cross-sectional view of the container body in an exploded state, and FIG. 2B is a plan view of a cover member (a cover member in which a nozzle portion and a hold portion are molded with different color materials). . Fig.3 (a) is sectional drawing (state which removed the cap) of the eyedrop container (2nd Embodiment) of this invention, FIG.3 (b) is sectional drawing of the decomposition | disassembly state of a container body. Fig.4 (a) is sectional drawing (state which opened the cap cover) of the eye drop container (3rd Embodiment) of this invention, FIG.4 (b) is sectional drawing of a decomposition | disassembly state. Fig.5 (a) is sectional drawing (state which removed the cap) which shows the eyedrop container (4th Embodiment) of this invention, FIG.5 (b) is sectional drawing of the decomposition | disassembly state of a container body. . FIG. 6 is a cross-sectional view (cross-sectional view taken along the line VI-VI in FIG. 5A) of the eye drop container with the cap attached. Fig.7 (a) is sectional drawing (state which opened the cap cover) which shows the eye drop container (5th Embodiment) of this invention, FIG.7 (b) is sectional drawing of a decomposition | disassembly state. FIG. 8 is a cross-sectional view of the eye drop container (sixth embodiment) according to the present invention (with the cap cover open). FIG. 9 is a cross-sectional view of the eye drop container in an exploded state. 10 is a cross-sectional view taken along line XX of FIG. 11 is a cross-sectional view of the eye drop container with the cap cover closed, taken along line XX of FIG.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(First embodiment)
Fig.1 (a), (b) has shown the eyedrop container of this invention with sectional drawing. As shown in FIGS. 1A and 1B, an eye drop container 1A (hereinafter abbreviated as container 1A) includes a container body 2 and a cap 3 that is detachably attached to the container body 2. This is a so-called twist cap type container.

The container body 2 includes a container body 10 and a cover member 16 as shown in FIG.

The container body 10 has a substantially rectangular parallelepiped liquid storage portion 11 that is slightly elongated and flat in the vertical direction, a shoulder portion 12 that is connected to the upper end portion thereof, and a cylindrical section that is erected at the center of the shoulder portion 12. The liquid container 11, the shoulder 12, and the cylindrical mouth / neck 13 are integrally formed of the same resin material that is transparent or translucent. In this example, the container body 10 is molded from a polyester resin such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, or polybutylene naphthalate, or a synthetic resin material such as polyarylate, polypropylene, or polystyrene.

In the cover member 16, the nozzle portion 16a and the hold portion 16b (corresponding to other portions of the present invention) are integrally molded (for example, two-color molding) with different resin materials. Specifically, the nozzle portion 16a is molded from, for example, low density polyethylene, and the hold portion 16b is molded from, for example, polypropylene. In addition to the low-density polyethylene, a soft synthetic resin such as a linear low-density polyethylene, a high-density polyethylene, or an elastomer can be applied as the material of the nozzle portion 16a. The material of the hold portion 16b is other than polypropylene. Synthetic resins such as low density polyethylene, linear low density polyethylene, high density polyethylene, and polystyrene are applicable.

The hold portion 16b includes a top wall portion 20 having a contour substantially equivalent to the contour of the liquid storage portion 11 of the container body 10, an outer wall portion 22 depending from the outer peripheral portion of the top wall portion 20, and the top wall portion. 20 is provided with a pair of locking pieces 24 (locking portions of the present invention) that respectively hang down from the lower surface thereof.

Then, as shown in FIGS. 1A and 1B, the cover member 16 is locked to the container body 10 so that the hold portion 16 b covers the cylindrical mouth-neck portion 13.

Specifically, the pair of locking pieces 24 of the holding portion 16b are located on the radially outer side of the cylindrical mouth / neck portion 13 of the container body 10 and extend in the axial direction of the cylindrical mouth / neck portion 13. . The opposing surfaces of these locking pieces 24 are formed in a circular arc shape in cross section corresponding to the outer peripheral surface of the cylindrical mouth-and-neck portion 13, and a locking groove 24a is formed at each tip (lower end). Has been. On the other hand, the cylindrical mouth-and-neck portion 13 is a ring-shaped protrusion 13a (corresponding to the locking protrusion of the present invention) that protrudes radially outward at the root portion of the cylindrical mouth-and-neck portion 13 on the outer peripheral surface thereof. ). That is, as shown in FIG. 1A, the cylindrical mouth-neck portion 13 of the container body 10 is inserted between the respective locking pieces 24, and each locking piece is inserted into the protruding portion 13 a of the cylindrical mouth-neck portion 13. The cover member 16 is locked to the container body 10 by the engagement of the 24 locking grooves 24a.

In the state where the cover member 16 is locked to the container body 10 as described above, the lower end portion of the outer wall portion 22 of the hold portion 16b is formed along the outer edge of the shoulder portion 12 as shown in FIG. It fits into the stepped portion 12a. As a result, the outer surface of the cover member 16 (hold portion 16b) and the outer surface of the liquid storage portion 11 of the container body 10 are substantially flush with each other to form a smooth outer shape line of the container body 2 that is substantially continuous in the vertical direction. Has been.

The nozzle portion 16 a includes a cylindrical insertion portion 17 a extending downward from the top wall portion 20, a flange portion 17 b connected to the upper end thereof, and a nozzle body 17 c protruding upward from the upper surface of the top wall portion 20. Yes. The eye drops are dropped from the tip of the nozzle body 17c.

In the state where the cover member 16 is locked to the container body 10, the nozzle portion 16 a has an insertion portion 17 a inserted into the cylindrical mouth and neck portion 13 of the container body 10, as shown in FIG. In addition, the collar portion 17 b is in contact with the upper end portion of the cylindrical mouth-neck portion 13. Thereby, the nozzle part 16a is attached to the cylindrical mouth-neck part 13 in a liquid-tight state.

The nozzle portion 16a and the hold portion 16b are integrally molded in a state where the flange portion 17b of the nozzle portion 16a is covered from the outside (nozzle body 17c side) by the top wall portion 20 of the hold portion 16b. With this configuration, the pullout strength (upward pullout strength) of the nozzle portion 16a with respect to the cover member 16 is increased.

The cap 3 has a dome shape including a covering wall portion 30 and a peripheral wall portion 32 formed along the outer periphery thereof, and is attached to the container body 2 so as to cover the upper portion of the cover member 16.

A cylindrical plug portion 34 projects from the lower surface of the cover wall portion 30 of the cap 3. When the cap 3 is attached to the container body 2, the plug portion 34 is connected to the nozzle portion 16 a (nozzle body 17 c). ) Is inserted into the spout, thereby closing the spout. Further, when the cap 3 is attached to the container body 2 in this manner, as shown in FIG. 1B, the hook portion 32 a formed on the inner side surface of the cap 3 (inner side surface of the peripheral wall portion 32) is replaced with the cover member 16. The cap 3 is locked to the container body 10 by engaging with the locking protrusions 23 formed on the outer surface of the (holding portion 16b).

The method of using this container 1A is the same as that of this conventional eye drop container. That is, when performing the eye drop operation, the cap 3 is rotated about 90 ° around the nozzle body 17c from the cap mounting state shown by the two-dot chain line in FIG. 1A, and the cap 3 is removed from the container body 2 thereby. That is, when the cap 3 is rotated, the cap 3 rides on the top wall portion 20 of the cover member 16 (holding portion 16b), and the cap 3 is pushed upward along with the riding, and the hook portions 32a and the locking protrusions 23 are also pushed up. The locked state is released. Therefore, after that, by removing the cap 3 from the container body 2, instillation becomes possible. At the time of instillation, the eye drop can be dripped from the nozzle part 16a by making the tip of the nozzle part 16a face downward and pressing the container body 10 lightly. After use, the cap 3 is put on the container body 2, the cap 3 is pressed against the liquid storage portion 11, and the hook portion 32 a is engaged with the locking projection 23, so that the cap 3 is attached to the container body 2. Is retained. Therefore, the container 1A can be stored in this state.

The container 1A as described above has the following advantages.

First, according to this container 1A, since the nozzle portion 16a and the holding portion 16b are integrally molded (two-color molding), even when an external force acts on the nozzle portion 16a when removing the cap 3, the nozzle portion 16a Is prevented from being pulled out from the container body 10 (cylindrical mouth-neck portion 13). That is, when the nozzle body 17c is relatively tightly fitted to the stopper 34 due to dimensional errors of the stopper 34 or the nozzle 16a (nozzle body 17c) of the cap 3, when removing the cap 3. A strong external force in the pulling direction acts on the nozzle portion 16a. However, even in such a case, according to the container 1A, after the nozzle part 16a and the holding part 16b are integrally molded, the cover member 16 (holding part 16b) is connected to the container body 10 ( Since it is locked to the cylindrical mouth-and-neck portion 13), the nozzle portion 16a is prevented from being pulled out from the container body 10. In particular, the nozzle portion 16a is integrally formed with the hold portion 16b in a state where the flange portion 17b is covered from the outside by the hold portion 16b (the top wall portion 20), thereby increasing the pulling strength. Therefore, the nozzle portion 16a is prevented from being pulled out from the cover member 16 by itself. According to the container 1A, the pulling force (external force) as described above acts on the locking piece 24. Therefore, in order to prevent the nozzle portion 16a from coming off, the nozzle portion 16a (insertion) with respect to the cylindrical mouth-neck portion 13 is inserted. It is not necessary to tighten the fitting tolerance of the portion 17a), and the fitting tolerance can be set as loose as possible within a range in which liquid tightness can be secured. Therefore, according to this container 1A, while the nozzle part 16a can be prevented from being unintentionally pulled out from the cylindrical mouth-neck part 13 of the container body 10, the assembly work of the cover member 16 to the container body 10, that is, The insertion operation of the nozzle portion 16a (insertion portion 17a) into the cylindrical mouth-neck portion 13 can be easily performed.

Further, according to this container 1A, for example, as shown in FIG. 2B, in the cover member 16, the nozzle portion 16a and the hold portion 16b can be molded using resin materials of different colors. Therefore, according to the container 1A in which the nozzle portion 16a and the hold portion 16b are different from each other in this way, there is an advantage that the visibility of the spout can be improved and the usability is improved at the time of instillation. .

(Second Embodiment)
FIGS. 3A and 3B are cross-sectional views showing an eye drop container 1B (hereinafter abbreviated as container 1B) according to the second embodiment. The container 1B of the second embodiment is a modification of the container 1A of the first embodiment. Therefore, the same reference numerals are given to the parts common to the container 1A, and the description thereof is omitted. Main differences from the container 1A in the form will be described.

The most different point of the container 1B from the container 1A of the first embodiment is that a cylindrical seal portion 21 protruding downward from the lower surface of the top wall portion 20 is formed on the hold portion 16b of the cover member 16. is there. The seal portion 21 is formed so as to surround the nozzle portion 16a at a position between the locking piece 24 and the nozzle portion 16a. The seal portion 21 is in close contact with the outer peripheral surface of the cylindrical mouth / neck portion 13 of the container body 10, so that the gap between the hold portion 16 b (cover member 16) and the tubular mouth / neck portion 13 (container body 10) is sealed. Has been.

According to the container 1B of the second embodiment as described above, in addition to the advantages of the container 1A of the first embodiment described above, the nozzle portion 16a is made of polyethylene terephthalate (PET) or polybutylene terephthalate (polybutylene terephthalate (low-adsorbability of formulation components). PBT) or other polyester-based resin can be used, and there is an advantage that it contributes to improving the quality stability of the chemical solution (eye drops). That is, it is preferable from a viewpoint of quality stability that the nozzle part 16a with which the chemical | medical solution in the container main body 10 contacts is comprised with polyester-type resin, such as PET with low adsorbability of a formulation component similarly to the container main body 10. FIG. However, polyester resins such as PET may have low elasticity, and conventionally, from the viewpoint of emphasizing prevention of liquid leakage, the nozzle part is made of relatively elastic polyethylene (PE) or polypropylene (PP). As a result, the sealing performance between the nozzle portion and the container body (cylindrical mouth-neck portion) is ensured. On the other hand, according to the container 1B of the second embodiment, as described above, the hold part 16b and the container main body 10 (tubular mouth and neck) are formed by the seal part 21 formed on the hold part 16b (cap main body part 40). And the portion 13) is sealed, thereby preventing liquid leakage. Therefore, for example, if the hold portion 16b of the cover member 16 is molded of PE or PP, and the nozzle portion 16a is made of a polyester-based resin such as PET similar to the container body 10, the formulation component is prevented while preventing liquid leakage. There is an advantage that the quality stability of the chemical solution can be improved by preventing the adsorption to the nozzle portion 16a.

(Third embodiment)
FIGS. 4A and 4B are cross-sectional views showing an eye drop container 1C (hereinafter abbreviated as container 1C) according to the third embodiment. The container 1C of the third embodiment is a modified example of the container 1B of the second embodiment. Therefore, the same parts as those of the container 1B are denoted by the same reference numerals, description thereof is omitted, and the second embodiment is described below. The main difference from the container 1B of a form is demonstrated.

This container 1C is generally obtained by changing the container structure of the container 1B of the second embodiment from the twist cap type to the hinge cap type. Specifically, the container 1C includes a hinge cap 15 instead of the cap 3 and the cover member 16 of the container 1B.

The hinge cap 15 includes a nozzle portion 16a and a hold portion 16b, and opens and closes a cap body portion 40 (corresponding to a cover member of the present invention) fixed to the upper end portion of the container body 10 and a spout of the nozzle portion 16a. A cap cover 18 (corresponding to the cap of the present invention) and a hinge portion 19 for connecting the cap cover 18 to the cap body portion 40. That is, the cap main body 40 corresponds to the cover member 16 of the container 1B, and the cap cover 18 corresponds to the cap 3 of the container 1B.

In the hinge cap 15, the nozzle portion 16a and other portions are integrally molded (that is, two-color molded) with different resin materials. Specifically, the nozzle portion 16a is molded from, for example, low-density polyethylene, and the other portions (holding portion 16b, cap cover 18 and hinge portion 19) are molded from, for example, polypropylene. In addition, as a material of the nozzle part 16a, soft synthetic resin such as linear low density polyethylene, high density polyethylene, polypropylene, and elastomer can be applied in addition to low density polyethylene, and the other parts (holding part 16b, As a material for the cap cover 18 and the hinge portion 19), synthetic resin such as polystyrene can be used in addition to polypropylene.

The cap cover 18 has a closed position (a position indicated by a two-dot chain line in FIG. 4A) that covers the nozzle portion 16a so as to overlap the top wall portion 20 of the cap body portion 40 (hold portion 16b), and this position. Hinge part so as to be able to swing and displace over an open position (a position indicated by a solid line in FIG. 4A) that unfolds from the side of the cap body part 40 and opens the spout of the nozzle part 16a. 19 is connected to the hold unit 16b via When the cap cover 18 is closed (arranged at the closed position), the plug portion 34 of the cap cover 18 is fitted into the spout of the nozzle portion 16a (nozzle body 17c), thereby closing the spout. . Further, the hook portion 32a provided on the cap cover 18 engages with a locking projection 23 (not shown) provided on the holding portion 16b, whereby the cap cover 18 is held in the closed position. Yes.

Although not shown in detail, the hinge portion 19 includes two types of hinge portions having different shapes, and the cap cover 18 is in a state where the angle formed between the top wall portion 20 of the hold portion 16b and the cap cover 18 is an acute angle. Is urged to the closed position, and the cap cover 18 is urged to the open position when the angle formed between the top wall 20 and the cap cover 18 is an obtuse angle. With this configuration, the cap cover 18 can be held in the open position during instillation.

According to the container 1C of the third embodiment as described above, since the container body 10 and the hinge cap 15 have a two-part structure, the number of parts can be reduced compared to the container 1B of the second embodiment. Therefore, there is an advantage that the assembling property can be improved and the cost can be reduced. As described above, the container 1C of the third embodiment is obtained by changing the container structure of the container 1B of the second embodiment from the twist cap type to the hinge cap type, and the other configurations are the second embodiment. It is equivalent to the container 1B. Therefore, also in the container 1C of the third embodiment, it is possible to enjoy the same operational effects as the container 1B of the second embodiment.

(Fourth embodiment)
FIGS. 5A and 5B are cross-sectional views showing an eye drop container 1D (hereinafter abbreviated as container 1D) according to the fourth embodiment. A container 1D according to the fourth embodiment is a modification of the container 1B according to the second embodiment. Accordingly, portions common to the container 1B are denoted by the same reference numerals, description thereof is omitted, and the second embodiment is described below. The main difference from the container 1B of a form is demonstrated.

In the container 1B according to the second embodiment (FIG. 3A), the seal portion 21 is formed so as to protrude downward from the lower surface of the hold portion 16b (the top wall portion 20), but the container according to the fourth embodiment. Such a seal portion 21 is not provided in 1D. Instead, as shown in FIGS. 5A and 5B, the center of the top wall portion 20 is formed in a cylindrical shape extending upward, and the inside of this cylindrical portion (referred to as the cylindrical portion 20a) is formed. The nozzle portion 16a is disposed on the outer side of the cylindrical portion 20a, and a locking piece 24 is provided outside the cylindrical portion 20a. That is, in this container 1D, the cylindrical part 20a of the top wall part 20 is in close contact with the outer peripheral surface of the cylindrical mouth-and-neck part 13 of the container body 10, so that the hold part 16b (cover member 16) and the container body 10 are in contact with each other. The space is sealed. In short, in this container 1D, the cylindrical portion 20a corresponds to the seal portion of the present invention.

Further, in the container 1D of the fourth embodiment, the spout of the nozzle portion 16a (nozzle body 17c) is provided laterally on a substantially side surface instead of the top surface of the nozzle body 17c. That is, this container 1D can be instilled in an easy posture with the container 1D turned sideways (without directing the container 1D directly below). In particular, in this container 1D, as shown in FIG. 6, the nozzle body 17c is arranged on one side (left side in the figure) from the center (container center) of the insertion portion 17a in the short side direction (horizontal direction in FIG. 6) of the container horizontal section. ). The spout of the nozzle body 17c opens outward (to the left in FIG. 6) on the side where the nozzle body 17c is biased. Thereby, if the container main body 10 is picked and tilted from both sides in the short side direction, the eye drop operation can be performed as close to the eye as possible to perform the eye drop operation.

As shown in FIG. 6, the cap portion 34 of the cap 3 has a cylindrical shape, and when the cap 3 is attached to the container body 2, the tip of the nozzle portion 16 a (nozzle body 17 c) is located inside the plug portion 34. Thus, the spout of the nozzle portion 16a is closed. In particular, in the container 1D, as described above, the nozzle body 17c is eccentric from the center (container center) of the insertion portion 17a to one side, so that the cap 3 has two plug portions 34 arranged in the short side direction. Is provided. As a result, if the cap 3 is attached to the container body 2 so that the contours of the container body 2 and the cap 3 coincide with each other, the cap 3 can be attached without worrying about the position of the nozzle body 17c, and usability is improved.

A spherical portion 34 a is formed inside the cap portion 34 of the cap 3, and when the cap 3 is attached to the container body 2, the tip of the nozzle portion 16 a (nozzle body 17 c) is located inside the plug portion 34. The spherical portion 34a is in close contact with the peripheral edge of the nozzle body 17c including the spout, so that the spout is closed.

According to the container 1D of the fourth embodiment, there is an advantage that the assemblability of the eye drop container of the type in which the eye drop is dropped sideways is improved. In other words, in conventional eye drop containers of the type in which eye drops are dropped sideways, it is necessary to assemble the nozzle part so that the spout is directed in a specific direction with respect to the container body, and such nozzle part direction regulation is necessary As a result, there is a problem that a special process is required and the manufacturing process is complicated. However, according to the configuration of the container 1D including the cover member 16 in which the nozzle portion 16a and the hold portion 16b are integrally molded (two-color molding), the nozzle portion 16a is automatically formed when the cover member 16 is assembled to the container body 10. Therefore, a special process for regulating the direction of the nozzle portion 16a is not required in the manufacturing process of the container 1D. Therefore, according to this container 1D, it is possible to prevent the occurrence of assembly failure without paying special attention in a type of eye drop container that can be instilled sideways. Therefore, there exists an advantage that the assembly property of container 1D can be improved.

(Fifth embodiment)
FIGS. 7A and 7B are cross-sectional views showing an eye drop container 1E (hereinafter abbreviated as container 1E) according to the fifth embodiment. A container 1E according to the fifth embodiment is a modification of the container 1D according to the fourth embodiment. Accordingly, portions common to the container 1D are denoted by the same reference numerals, description thereof is omitted, and the fourth embodiment is described below. Main differences from the container 1D of the form will be described.

The container 1E of the fifth embodiment has the same configuration as the container 1E of the fourth embodiment in that it is an eye drop container that drops eye drops in a horizontal direction, but the container structure is a hinge cap type. The configuration is different from the container 1D of the fourth embodiment. That is, the container 1E of the fifth embodiment includes a hinge cap 15 instead of the cap 3 and the cover member 16 of the container 1D of the fourth embodiment.

The basic configuration of the hinge cap 15 is the same as that of the container 1C of the third embodiment (FIG. 4A). However, the configuration is different from the container 1C in the following points.

As described above, since the container 1E is an eye drop container that drops eye drops in a horizontal direction, an eye drop spout is provided on the side surface of the nozzle portion 16a (nozzle body 17c). Specifically, the spout of the nozzle portion 16a opens toward the side opposite to the hinge portion 19 (left side in the figure) in the long side direction (left and right direction in FIG. 7A) of the horizontal section of the container. . Further, the nozzle body 17c is provided at a position that is offset from the center of the insertion portion 17a to the side opposite to the hinge portion 19 (left side in the figure) in the long side direction.

Further, the hinge cap 15 of the container 1E is provided with a pair of locking plates 38 on the top wall portion 20 of the hold portion 16b and in the vicinity of the hinge portion 19. The pair of locking plates 38 are arranged in the short side direction of the container horizontal section (the direction orthogonal to the paper surface in FIG. 7A). A locking projection 38 a is formed on the opposing surface of each locking plate 38. On the other hand, a hook portion 32 a (not shown) is formed on the outer surface of the peripheral wall portion 32 of the cap cover 18. Thereby, when the cap cover 18 is closed, the cap cover 18 is interposed between the both locking plates 38, and the hook portion 32a of the cap cover 18 is engaged with the locking protrusion 38a. As a result, the cap cover 18 is held in the closed position. The stopper part 34 of the cap cover 18 is equivalent to the stopper part 34 of the container 1D of the fourth embodiment. When the cap cover 18 is closed, the tip of the nozzle part 16a (nozzle body 17c) is inserted inside the stopper part 34. Then, when the spherical portion 34a is in close contact with the peripheral edge of the nozzle body 17c including the spout, the spout is closed.

According to this container 1E, since the container main body 10 and the hinge cap 15 have a two-part structure, the assemblage of the eye drop container of the type in which the eye drop is dropped from the extraction port provided on the side surface of the nozzle portion 16a is further improved. There is an advantage of improvement.

(Sixth embodiment)
8 to 11 are cross-sectional views showing an eye drop container 1F (hereinafter abbreviated as container 1F) according to the sixth embodiment. The container 1F of the sixth embodiment is a modification of the container 1C of the third embodiment. Therefore, the same reference numerals are given to the parts common to the container 1C and the description thereof is omitted, and the third embodiment will be described below. The main differences from the container 1C in the form will be described.

In the container 1C of the third embodiment described above (FIG. 4A), the nozzle body 17c has a slightly thick shaft, but the nozzle body 17c of the container 1F of the sixth embodiment has a small diameter needle. Is.

A pair of protective plates 36 are provided on the holding portion 16b of the cap main body 40 to protect the needle-like nozzle main body 17c and to ensure safety when instilled. Specifically, as shown in FIG. 10, in the upper surface of the top wall portion 20, the space at which the cap cover 18 can be interposed at each position on both sides of the nozzle body 17 c (nozzle portion 16 a). A pair of protection plates 36 having a mountain shape in side view projecting upward with a gap therebetween is formed. Each protection plate 36 has a top portion located slightly above the tip of the nozzle body 17c. In addition, a locking projection 36 a that protrudes inward is formed on the opposing surface of each protection plate 36, and a hook portion 32 a (not shown) is formed on the outer surface of the peripheral wall portion 32 of the cap cover 18. . That is, when the cap cover 18 is disposed at the closed position, as shown in FIG. 11, the cap cover 18 is interposed between the protective plates 36, and the hook portion 32a of the cap cover 18 is engaged with the locking protrusion 36a. To do. As a result, the cap cover 18 is held in the closed position. The cap portion 34 of the cap cover 18 has a cylindrical shape, and when the cap cover 18 is closed, the tip of the nozzle portion 16a (nozzle body 17c) is fitted inside the plug portion 34, whereby the nozzle portion 16a is inserted. The exit is closed.

In addition, the code | symbol 24b in FIG.8 and FIG.9 is a plate-shaped reinforcement rib extended in an up-down direction along the back surface of each locking piece 24. FIG.

According to the container 1F of the sixth embodiment as described above, since the nozzle body 17c has a needle shape as described above, a relatively small droplet can be formed and instilled. Therefore, it is useful in preventing makeup collapse such as eyeline. In particular, since the container 1F has a configuration in which the nozzle portion 16a is integrally molded (two-color molding) with the hinge cap 15, the conventional container 1F is provided with the needle-like nozzle body 17c (nozzle portion 16a) as described above. This kind of container, that is, a conventional container (a container described in Patent Document 1 of the background art) in which a nozzle is assembled to a container body alone, during storage of parts before assembly, and a nozzle supply device for a manufacturing process It is possible to prevent the nozzles from being connected in a daisy-chained state and making the nozzle unusable or the supply of the nozzles stagnating. Accordingly, there is an advantage that the nozzles connected in a daisy chain as in the prior art are not discarded and the yield can be improved.

The eye drop containers 1A to 1F according to the first to sixth embodiments of the present invention have been described above, but these containers 1A to 1F are examples of preferred embodiments of the eye drop container according to the present invention. The specific configuration is appropriately changed without departing from the gist of the present invention.

For example, the structures of the

containers

1A and 1B of the first and second embodiments are the twist cap type as described above, but may be a screw cap type, for example. This screw cap type container has a shaft-shaped part positioned concentrically with the center of the nozzle part 16a and having an external thread on the outer peripheral surface of the container body 2 (cover member 16), while the inner side of the cap 3 (covering wall). Part 30) has a cylindrical part located concentrically with the plug part 34 and provided with an internal thread on the inner peripheral surface. That is, the screw cap type container is a type in which the cap 3 is attached to the container body 2 by screwing and inserting the shaft-like part into the cylindrical part.

Further, the coupling structure of the container body 10 and the cover member 16 or the hinge cap 15 in each of the containers 1A to 1F can be mutually transferred between the containers 1A to 1E. For example, as in the container 1D of the fourth embodiment, the structure in which the cylindrical portion 20a is provided in the hold portion 16b and the space between the cylindrical mouth-neck portion 13 and the hold portion 16b is sealed is the other containers 1A to 1C, 1E. 1F is also applicable.

Each of the containers 1A to 1F has a nozzle portion 16a having an insertion portion 17a. The insertion portion 17a is inserted into the cylindrical mouth-and-neck portion 13. For example, for the containers 1B to 1D, Since the gap between the holding portion 16b and the cylindrical mouth / neck portion 13 is sealed by the seal portion 21 or the cylindrical portion 20a, the insertion portion 17a may be omitted from the nozzle portion 16a of the containers 1B to 1D. . That is, the nozzle portion 16a may be configured to abut on the upper end of the cylindrical mouth / neck portion 13 via the collar portion 17b without being inserted into the cylindrical mouth / neck portion 13.

In addition, the materials applied to the containers 1A to 1F are just examples of application, and specific materials can be appropriately selected according to the properties of the ophthalmic solution.

The present invention described above is summarized as follows.

An eye drop container according to one aspect of the present invention includes a container body having a liquid storage part and a cylindrical mouth-neck part connected to the liquid storage part, a locking part that can be locked to the container body, and a liquid dispensing unit. A cover member that is locked to the container body so as to cover the cylindrical mouth and neck portion, and a cap that opens and closes the spout of the nozzle portion, and the cover member includes The nozzle part and the other part are integrally molded from different resin materials, and the nozzle part is locked to the container body via the locking part in a state of being in contact with the cylindrical mouth-neck part. It is what.

According to the configuration of the eye drop container, the nozzle portion is integrally formed with the cover member that is locked to the container body. Therefore, for example, in an eye drop container in which a nozzle part is inserted into a cylindrical mouth and neck part, even when an external force (extraction force) acts on the nozzle part when removing the cap, the nozzle part is pulled out from the cylindrical mouth and neck part. Is effectively prevented. In this case, the external force mainly acts on the locking portion. Therefore, unlike conventional containers, it is not necessary to tighten the fitting tolerance of the nozzle portion with respect to the cylindrical mouth-neck portion in order to prevent the nozzle portion from coming off, and the fitting tolerance is loosened within a range in which sealing performance can be secured. It becomes possible to set. Thereby, while preventing a nozzle part being pulled out from a cylindrical mouth neck part, it becomes possible to perform insertion (assembly) of the nozzle part with respect to the said cylindrical mouth neck part easily. In addition, even in the case of an eye drop container in which the outlet of the nozzle part opens sideways, since the nozzle part is integrally formed with the cover member, there is a reduced risk that the nozzle part will be misoriented in the assembly stage of the eye drop container. Is done. Furthermore, it is possible to prevent the inconvenience that the tip of the nozzle is fitted into the rear part of another nozzle and connected in a daisy chain state during storage before assembly.

In the eye drop container, the nozzle portion includes a cylindrical insertion portion that is inserted into the cylindrical mouth and neck portion, and a collar portion that is connected to the insertion portion and abuts on an edge portion of the cylindrical mouth and neck portion. It is preferable that the collar part is covered with the other part from the outside.

According to this configuration, the pullout strength of the nozzle portion in the cover member is increased, and the integrity of the nozzle portion with respect to the cover member is further enhanced.

Further, in the above eye drop container, the other part of the cover member has a seal portion that seals between the cylindrical mouth neck portion and the cover member by being in close contact with the outer peripheral surface of the cylindrical mouth neck portion. It is suitable to have.

According to this configuration, liquid leakage from the cylindrical mouth / neck portion is prevented by the seal portion of the cover member, so that the sealing performance required for the nozzle portion can be reduced. Therefore, the freedom degree regarding the material etc. which comprise a nozzle part improves.

In the above eye drop container, the cylindrical mouth-neck portion includes a locking projection that protrudes radially outward on an outer peripheral surface thereof, and the locking portions are on both outer sides in the radial direction of the cylindrical mouth-neck portion. And a pair of locking pieces that extend in the axial direction of the cylindrical mouth-and-neck portion and engage with the locking projections, respectively.

According to this configuration, when the cover member is mounted on the container body so as to cover the cylindrical mouth-neck portion, each locking piece engages with the locking protrusion of the cylindrical mouth-neck portion, whereby the cover member Is locked to the container body via the respective locking pieces. Therefore, the cover member can be assembled to the container body with a simple configuration.

The cap is made of the same resin material as the other part of the cover member and is integrally molded with the other part. The cap covers the nozzle part and expands outward from the closed position. Then, it may be swingable to an open position for opening the spout.

According to this configuration, since the eye drop container has a two-part configuration including the cover member including the cap and the container main body, it is possible to further increase productivity while enjoying the above-described effects.

Claims

A container main body having a liquid container and a cylindrical mouth and neck connected to the liquid container;
A cover member that has a locking portion that can be locked to the container body and a nozzle portion for liquid extraction, and that is locked to the container body so as to cover the cylindrical mouth and neck portion;
A cap for opening and closing the spout of the nozzle part,
In the cover member, the nozzle portion and other portions are integrally formed of different resin materials, and the nozzle portion is in contact with the cylindrical mouth-and-neck portion via the locking portion. An ophthalmic container characterized by being locked to the container body.
In the eye drop container of claim 1,
The nozzle portion includes a cylindrical insertion portion that is inserted into the cylindrical mouth and neck portion, and a collar portion that is connected to the insertion portion and abuts on an edge portion of the cylindrical mouth and neck portion, An ophthalmic container characterized by being covered from the outside by other parts.
In the eye drop container of claim 1,
The ophthalmic solution characterized in that the other part of the cover member has a seal portion that seals between the cylindrical mouth-neck portion and the cover member by being in close contact with the outer peripheral surface of the cylindrical mouth-neck portion. container.
In the eye drop container according to any one of claims 1 to 3,
The cylindrical mouth-and-neck portion includes a locking projection that protrudes radially outward on an outer peripheral surface thereof,
The locking portions are a pair of locking pieces that are positioned on both outer sides in the radial direction of the cylindrical mouth-neck portion and extend in the axial direction of the cylindrical mouth-neck portion and engage with the locking protrusions, respectively. An eye drop container characterized by that.
In the eye drop container according to any one of claims 1 to 4,
The cap is made of the same resin material as the other part of the cover member and is integrally formed with the other part. The cap covers the nozzle part and expands outward from the closed position. An ophthalmic container characterized by being swingable to an open position for opening the spout.