JP2003175985A - Liquid dripping container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a stable dripping amount to be easily assured in a liquid dripping container and further enable its cost to be reduced due to a simple structure of a container itself; enable a safety in operation during its distribution process to be assured through employing an unauthorized seal opening preventive mechanism and at the same time enable a constitution of no deterioration of any outer aesthetic appearance of the container to be attained. <P>SOLUTION: This is provided a liquid dripping container comprising a container main body having a dripping port for use in dripping predetermined solution stored in the container; a cap member removably installed at the container main body so as to open or close the dripping port of the container; a dripping operation part arranged under a state in which a part of a container wall of the container main body is constituted and an inner volume of the container main body is increased or decreased in a reverse manner; and a dripping operation member having a pressing piece connected to the dripping operation member and enabling a pressing operation at the operation part to be carried out in a vertical direction. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid drip-type container for containing a solution such as an eye drop solution, a cleaning solution for contact lenses, a disinfectant solution, etc., and dropping the working solution by dropping a necessary amount when using the solution. In particular, the present invention relates to a liquid dropping container having a structure in which the volume inside the container is changed by pressing. Further, the present invention relates to a drip-type container having such a tamper-proof cap that can be clearly judged from the appearance that it has been opened.

[0002]

2. Description of the Related Art For example, a solution used for cleaning or disinfecting a contact lens is a solution for removing lipids adhering to the lens surface, a solution for removing stains such as proteins, or a lens for disinfecting, depending on the purpose of use. It is developed so that it can exert its respective functions depending on the solution, such as the one that does. Among such working liquids, it is desirable that the amounts used are mixed at a fixed ratio and used in order to sufficiently exhibit the function of the liquid. For example, an enzyme solution for removing proteins attached to lenses. Enzymes have a problem of stability in a solution state, and therefore, when distributed as a solution, an organic liquid (for example, glycerin,
(Propylene glycol, etc.) and boric acid compound are dissolved in a mixed solution of water, and the enzyme activity is enhanced by diluting with a cleaning solution or a disinfecting solution for contact lenses. At this time, if the dilution ratio is too high, the effective enzyme concentration will be low, which will affect the cleaning effect.If the dilution ratio is too low, the osmotic pressure of the solution after mixing will depend on the organic liquid used for enzyme stabilization. Since it becomes high and affects the specifications such as the size of the contact lens and the base curve, it is required that the ratio be substantially constant when the liquid enzyme is dropped and mixed.

[0003] Such an enzyme solution is usually contained in a dedicated container, and a necessary amount is taken out from the container for use. As a container for the solution, the container is housed in an elastically deformable container made of a flexible material, and the user presses and deforms the side surface of the container to eject or drop the solution from its outlet. Things can be considered. However, when taking out from such a container, the amount taken out varies depending on the difference in pressing force of the user, so it is necessary to find a usage method that maximizes the effect when using the solution. However, there is a problem in that the user needs to adjust the amount of pressing deformation, which makes the operation difficult.

Therefore, for example, (1) the bottom portion of a rigid material container body disclosed in Japanese Utility Model Publication No. 8-9708 previously proposed by the present inventor is covered with a soft elastic material so that the deformation amount of the elastic material can be reduced. Which regulates the dripping amount by defining the inward flange on the side, (2) Actually opened Sho 63-46383
JP-A-8-301331, the bottom of the container body is closed by an elastic diaphragm plate, and the pressing force is transmitted vertically to the diaphragm plate through a pressing piece provided on the outside of the diaphragm plate. For adjusting the dropping amount of (3) disclosed in JP-A-10-203574,
By closing the bottom of the container body with push rubber and pressing it with a push button through the guide cap,
Proposals have been made such as adjusting the drop amount of the contents by keeping the height of the push button, which is the protruding portion from the guide cap, constant.

According to the containers (1) to (3), it is possible to guarantee a certain amount of drip and the liquid contained in the container can be used as intended by the supplier. But,
Regarding (1), since the elastic material and the rigid material cannot be bonded as they are, a rigid material is required as a separate component for covering the elastic material and fixing it to the container body. There was a problem of volatilization.
Regarding (2) as well, in addition to the large number of parts, the hermeticity of the container body, and the like as described above, the connecting portion between the pressing piece and the container fixing portion is formed thin and thin in order to make it easy to bend. The problem that it is easily deformed by use, the problem (3) is the same as the problems (1) and (2) described above, and the number of parts is much larger than that of each container, which may lead to a high cost of the container. There was room for improvement.

On the other hand, in comparison with the above-mentioned publications, (4) Actual Kaihei 6-10163 capable of reducing the number of parts as much as possible
There is a drip container which is disclosed in Japanese Patent No. 3,096,861 in which a part of a rigid material constituting a container body is made extremely thin to have elasticity. With this container, it is possible to solve the problems of hermeticity of the container disclosed in (1) to (3), the problem of concentration change due to volatilization of a solution without using an elastic material, the reduction of the number of parts, and the like. However, since the specific solution for keeping the dropping amount constant is achieved by the shape of the dropping port and the surface tension of the solution, for example, whether the container at the time of dropping is held vertically or diagonally. This causes a difference in the surface tension relationship between the dropping port and the droplet, and there is a probability that the dropping amount will change with each use. Further, since the amount of change in the internal volume of the container due to the pressing of the dropping operation portion is not constant, there is a problem that the dropping amount varies among individuals.

[0007] Regarding the opening of the dripping container, illicit opening prevention measures have been an important issue in the past, and as proposals therefor, JP-A-7-309358 and 2000-34 are proposed.
4265, Japanese Unexamined Patent Application Publication No. 2001-180708, and the like have a device for preventing unauthorized opening of a cap having a so-called pilfer proof characteristic. These tamper evident devices indicate that the merchandise has been tampered with, depending on whether the cap and the detachable ring are cut. The display itself is sufficient, but the separated ring was not stable at the neck of the container, and the entire container was unpleasant in appearance.

[0008]

Here, the present invention has been made in view of the circumstances described above.
The problem to be solved is to be able to drip a predetermined amount of a predetermined solution (for example, eye drops, contact lens solution, etc.) to be stored inside, to reduce the number of parts constituting the container and to seal the container. It is an object of the present invention to provide a liquid dropping container capable of improving the temperature. Still another object of the present invention is to provide a drip container having an tamper-proof mechanism that is usually a problem in such a drip container.

[0009]

In order to solve the above problems, the present invention proposes the following liquid dropping container. That is, (a) a container body having a drip opening for dropping a predetermined solution contained therein, and (b) for opening and closing the drip opening of the container body detachably attached to the container body. Cap member of
(C) The container body is provided so as to form a part of the container wall, and the internal volume of the container body is reversible by the deformation caused by the pressing operation and the deformation caused by the restoration of the material to its original shape based on the elasticity. Liquid dropping including a drip operating part that increases and decreases dynamically and a drip operating member that is integrally formed with the drip operating part and that has a pressing piece that allows a pressing operation in the vertical direction with respect to the operating part. It is a container.

It is preferable that the dropping operation member is made of the same material in order to improve the adhesiveness to the container body. After the container body is molded, it is filled with the internal solution and sealed by the dripping operation member. This is because doing so is more advantageous in terms of adhesion.

Further, a volume change restricting means for restricting the amount of change in the internal volume due to the deformation of the dropping operation portion is provided between the pressing piece integrally formed with the dropping operation portion. Is formed as a convex portion on at least one of the dropping operation portion side and the pressing piece side, and it is provided at two or more places, or an annular stopper is provided between the dropping operation portion and the pressing piece. It can also be provided.

If the dripping port of the container body is sealed, a hole can be opened in the sealed portion,
Spikes are provided on the inner bottom of the cap member, and by screwing the cap onto the container body, the seal portion is opened and a drip port is formed. In this case, it is preferable that a cylindrical stopper is provided between the cap member and the container body in order to prevent unintentional opening of the seal at the distribution stage. The cylindrical stopper, which is thinly connected to the opening end of the cap member, has an annular projection that is provided around the terminal end of the threaded portion of the container body that engages with the cap. By being locked, the screw advance of the cap before opening is controlled. Further, the cylindrical stopper advances forward beyond the ridge by forced screwing at the time of opening, the other end surface of the cylindrical stopper engages with the ridge of the container body, and the spike on the inner bottom of the cap member. Is configured to open the drip port of the container body. Subsequently, when the cap member is screwed back to remove the cap, the thin-walled continuous portion with the cylindrical stopper is broken and the cylindrical stopper remains in the container body.

Since a conventional general dropping operation portion is made of a soft material (such as silicon rubber), it is difficult to directly adhere the container body (such as polypropylene) to the dropping operation portion with a certain degree of adhesive strength. Is.
Usually, these fixing methods are performed by holding a fixing member made of the same kind of material as the container body and a dropping operation part made of the soft material between the container body and holding the fixing member on the container body side with ultrasonic waves. Etc. Therefore, a fixing member is indispensable for fixing the conventional drip operating portion, and the cost of the container is high due to an increase in the number of parts, and the drip operating portion is separated due to insufficient adhesive pressure between the two, water contained in the container, There has been a problem that the concentration of the content component changes due to volatilization through the soft material or the pinching portion. In the present invention, the material of the dropping operation part is made of a material having good adhesiveness to the main body, preferably the same kind of material, and the use of the fixing member is eliminated, so that the number of parts can be reduced. For example,
The material of the container body is polycarbonate, polysulfone,
If selected from hard resins such as polyacryl, polypropylene, polystyrene, ethylene vinyl acetate, nylon, etc., it is preferable that the resin of the dropping operation part is also made of the same material as described above. If the same kind of material is used, ultrasonic bonding with the container body is ready, and a fixing member, which is a separate component, is not required to bond the two, so the number of parts can be reduced. Further, since these hard resin materials have less moisture permeability than soft materials, a container in which the concentration of the contained solution does not change can be formed.

Here, the conventional dropping operation portion is made of a soft material for the purpose of facilitating repeated pressing and deformation of the portion, and in the present invention, the dropping operation portion is made thin. Moreover, by forming it into a dome shape, the volume of the container can be changed even if it is not a soft material. However, since it cannot sufficiently fulfill a certain amount of drip, which is an important function as a liquid drip container, the present invention has a pressing piece having an integral structure connected to the drip operating portion. ing. The integrated structure is such that the dome-shaped apex of the drip operating part is connected to the center of the disc-shaped pressing piece, and the user cannot directly touch the drip operating part with fingers. However, by pressing the pressing piece, the entire dripping operation section can be pressed uniformly from the dome-shaped apex. Compared with the case of directly pressing, the pressing area has been increased or decreased depending on the thickness of the user's finger, etc., and it has been improved that a uniform drop amount cannot be secured. In addition, since the drip operating part is made of thin hard resin, it cannot be restored quickly due to resin fatigue against excessive deformation, or it is pressed too hard and bends around the root of the thin part and loses restoring force. Although it was expected, the adoption of the pressing piece of the present invention made it possible to solve the above-mentioned problems because an excessive force was not applied to the drip operating portion.

It is preferable that the pressing piece is made of the same resin as that of the dropping operation part in terms of the integrated structure of the two, but it is not always necessary to use different kinds of materials to form the pressing piece. If the connection between both is durable in use, it is better to use a flexible material to some extent for the dropping operation part,
This is because when the pressing piece is made of a rigid material, it can be uniformly deformed with respect to the dropping operation portion. The pressing piece preferably has a circular flat plate shape. This is because, when the container main body is cylindrical, if the container main body is circular, the container as a whole has a good cohesion, and by making it flat, the pressing piece can be used as a bottom surface to stand the container. Further, depending on the shape of the container body, the container body may have a triangular plate shape if it has a triangular prism shape, or a polygonal flat plate shape such as a square shape if it has a square cast shape. If the container body is a polygonal column, it can have an effect of preventing it from rolling on a desk. In addition, even if you can not invert the container with the pressing piece as the bottom, considering the design surface, the pressing piece is a hemisphere, a polygonal pyramid such as a triangular pyramid,
A polygonal column such as a cubic body, or an uneven pattern on the surface, or a decoration such as engraving may be added. Such a change on the pressing surface side of the pressing piece may be any shape as long as it can press the dome shape of the dropping operation portion.
On the other hand, the surface of the pressing piece on the side of the dropping operation portion is preferably a flat surface in order to make the pressing action on the dropping operation portion uniform.

The drip operating member in which the pressing piece and the drip operating portion are integrated can be molded by a conventional molding method such as injection molding or compression molding. These can be integrally molded from the beginning or individually molded. May be adhered to form one body.
However, since the connecting part of both is the contact part between the dome top part of the dropping operation part and the pressing piece, it is a condition that the adhesion is durable for normal use when molding separately. .

Further, in order to control the dropping amount more reliably, it is preferable that a means for regulating the volume change of the main body container is provided between the pressing piece and the dropping operation portion. Upon dropping, the pressing piece is pushed to be crushed from the dome-shaped apex of the dropping operation unit to reduce the volume in the container, and a predetermined amount of the contained solution is taken out from the dropping port. This pressing operation can cause a constant volume change regardless of the size of the finger by applying the pressing force to the drip operating portion in a planar manner by adopting the pressing piece. Therefore, if a suitable convex portion is provided between the pressing piece and the dropping operation portion so that a constant gap is provided between the two, the amount of deformation of the dropping operation portion can be specified. ,
Various settings can be made according to the contents, and the dropping amount can be adjusted more accurately. Of course, even if such a restricting means is not provided, the pressing deformation is limited (for example, when the pressing piece is larger than the outer shape of the container body, the movement of the pressing piece is restricted by the outer shape of the container, If it is small, the pressing piece may be pushed into the inside of the container, but even in that case, there is a limit up to the position where the dome shape of the dropping operation part is inverted), so that limit is set as the constant value of the dropping amount. However, it is possible to adjust the stroke of the pressing piece by variously setting the height of the convex portion, and various applications can be made according to the usage. Further, as another aspect of the volume change restricting means, it is possible to provide an annular stopper between the dropping operation portion and the pressing piece. The stopper has a through hole in the center, and when the pressing piece protruding through the through hole is pressed during use, the movement of the finger is restricted by the stopper, so that the drop amount is constant.

The drip port of the container may be opened from the beginning or may be sealed with a thin resin or the like so as to be opened at the distribution stage. When the drip opening is formed from the beginning, various shapes can be given so that there is a liquid draining effect from the mouth during the operation of dropping the internal solution. A taper surface with a large diameter toward the tip is formed on the inner peripheral surface of the tip of the mouth, and in order to prevent liquid dripping, a cover with a diameter larger than the diameter of the dropping pipe that constitutes the dropping port is formed. By forming a portion and forming a space around the drip tube behind the burr portion, it is possible to perform excellent drainage without the inner solution remaining at the tip of the drip port.
Of course, even if the drip opening is sealed so that it can be opened, the drip opening formed with the tapered surface or the burrs as described above can be used, but the spike on the inner surface of the cap is
Although it is possible to open a hole that penetrates the dripping port, the thin resin that has been sealed cannot be completely removed. Since the pressure of the content liquid is applied and the flow of the solution is disturbed, the effect of adjusting the size of the liquid droplets to a constant level is better when the liquid droplets are formed from the beginning. However, in the case of a container having a drip opening formed from the beginning, in order to improve the tightness of the container at the distribution stage,
It is desirable to provide an elastic packing (for example, silicone rubber) on the inner surface of the cap to contact and close the drip port. In comparison with this, the drip port is sealed by a thin resin that can be opened until use. The container can maintain a sufficient hermeticity without a cap. It should be noted that the spike portion plays a role of maintaining the airtightness of the container during the use period after penetrating the dropping port even if there is no packing or the like, and it is sufficiently compatible with short-term storage.

By the way, it is desired that such a container has some kind of mechanism or structure so that the user can recognize whether the container has been illegally opened. As this tampering recognition mechanism, a simple one is one in which the entire container is covered with a shrink film, or a cylindrical stopper is formed between the container body and the cap member, and the cylindrical stopper is made of a resin rupturablely connected to the cap. There is a structure in which when the cap is screwed in the direction of opening, the cap remains and breaks at the mouth of the container body without following the cap (generally called pill fur proof property). In the present invention, it is preferable that the illicit opening recognition structure as described below is adopted when the drip opening is sealed with the openable thin resin. When the drip port is sealed, a through hole is formed by the spike in the cap to open it, but in that case, the cap is screwed in the direction of the container body. Then, the spike in the cap reaches the seal portion, and by further advancing it, the thin-walled resin of the seal portion is opened. At that time, the cylindrical stopper between the container body and the cap member is pushed down by screwing the cap member. A ring-shaped ridge is provided at the end of the cap mounting screw part of the container body, and the end face of the cylindrical stopper is locked to the ridge to prevent screwing of the cap in the tightening direction. When the cap is forcibly tightened, it is pushed by the cap and the end surface of the cylindrical stopper gets over the ridge and advances. A concave groove is formed on the inner peripheral surface of the cylindrical stopper, and the cylindrical stopper pushed to a position where the cap does not move is fitted and fixed in the protruding portion and the concave groove at that position. Therefore, whether or not the container is opened can be recognized by the user depending on the position of the cylindrical stopper. Further, since the cylindrical stopper prevents the cap from being unintentionally screwed, it is possible to prevent erroneous opening and the like at the distribution stage.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION In order to clarify the present invention more specifically, a drip container according to the present invention will be described in detail with reference to the structural drawings.

FIG. 1 shows an example of a sectional view of a drip container according to the present invention. As is clear from this figure,
In the drip container 1 of the present invention, the opening end 21 of the cylindrical container body 2 is closed by a drip operating portion 3 that reversibly changes the internal volume of the container body, and the other end has a neck portion 23 having a threaded portion 22 on the outer circumference. And a drip port 25 with a thin seal 24 is formed. Then, the cap 10 having the threaded portion 12 corresponding to the threaded portion 22 at the other end on the inner peripheral wall and having the spike 11 at the center of the inner bottom is screwed. By screwing the cap 10 by the user, the seal of the drip opening is opened and the predetermined liquid contained in the container can be dripped. Further, the drip operating portion 3 is provided with a pressing piece 4 which is combined with the drip operating portion 3 so that the pressing operation can be easily performed in the vertical direction.

The cylindrical container body 2 and the dropping operation portion 3 are made of the same resin material so that they can be ultrasonically welded easily, and are made by general injection molding or thermocompression molding, for example, to be inexpensive and easy to handle. It is composed of a thermoplastic resin selected from polyethylene, polypropylene, ethylene vinyl acetate, polystyrene, polycarbonate, nylon, acrylic and the like. After molding, a predetermined solution is filled from the open end 21 of the cylindrical container body, and the dropping operation unit 3 covers the lid and the peripheral portion in contact with both is ultrasonically welded and sealed. The peripheral part of the dripping operation part is joined by melting the resin with the container body, so it is much more sealed compared to the case where the conventional fixing material is crimped with the fixing member and the body container. The property is improved and the leakage of stored liquid can be prevented. Further, the cylindrical container body 2 is preferably made of a resin having a transparency that allows a user to visually recognize the residual liquid amount during use, but it does not need to be colorless and transparent, and may be colored or a product name or the like. The description and various designs may be given.

Since the container body is gripped during handling during the dropping operation, the container body is deformed by the gripping pressure unless it is appropriately rigid, and it becomes difficult to make the drip amount of the internal solution constant. On the other hand, the dripping operation unit reversibly changes the internal volume of the container through the pressing piece, and therefore must have an elastic force. Moreover, in order to ultrasonically weld the container body and the dropping operation portion as described above, it is preferable to use the same resin. Therefore, the deformed portion of the dropping operation portion is thin and formed in a dome shape so that the operation portion can be flexibly deformed even if the resin itself is hard.
If the dome shape of the dropping operation part is a so-called hemispherical shape, the deformation during operation will be too large, and the resin will be fatigued by frequent operations, causing problems with the restoring force to the original shape. If it is, the volume deformed by the pressure is too small, it is not possible to drop the internal solution,
It is desirable that the angle α in the cross-sectional view be within the range of 5 to 45 °.

The drip operating portion has a stepped cylindrical wall 31 extending downward from a dome-shaped peripheral end portion, and a stepped portion formed around the portion and the opening end portion 21 of the container body. The surface is fitted and ultrasonically welded as described above. Each shape of the welded portion is molded into various shapes on the assumption that each resin becomes more liquid-tight, and it is not always necessary to provide such a step or the like. When press-fitting a soft material having rubber elasticity between the resins, it was essential to improve the adhesive force between them, but in the present invention example, since it is not sandwiched between the drip operating member and the container body, it is sealed. As described above, the element that does not hinder the force so much and that the liquid-tightness is advantageously achieved is provided with an excellent sense of unity. Further, since there is nothing to be press-fitted between the two, a large bonding area can be provided between the container body and the drip operating member, so that the container body can be made thin, and the entire container can be made compact and slim. Can be advantageously achieved.

Although the pressing piece 4 is connected to the drip operating portion 3, the connecting manner may be such that it forms a part of the drip operating portion as shown in FIG. The structure (for example, shown in FIG. 2) may be such that flat surfaces are joined so as to be in contact with the apexes. Conventionally, when the drip operating portion is directly pressed, the volume of the drip operating portion that deforms when pressed is different depending on the thickness of the finger or the shape of the fingertip, and as a result, the predetermined amount intended by the supplier is obtained. There was a difference in the amount of the liquid dropped. In the present invention, the pressing piece as shown in FIG. 1 is provided integrally with the dropping operation portion, thereby making it possible to achieve a dropping amount that does not cause an individual difference depending on the consumer. As described above, the dripping operation portion is capable of reversibly deforming at the time of dripping. When a pressing force is applied to the pressing piece formed integrally with this, the pressing piece pushes down the convex surface as a single plate. Therefore, the deformed volume is determined by the pressure at the time of pressing and does not depend on the shape of the fingertip or the like, so that a constant drop amount can be obtained. As shown in the figure, the side of the pressing piece that touches the fingertip is a substantially flat surface (there is a flat surface with a slight indentation in the center, but it is possible to invert the container with the pressing piece facing down.) Even if the cap is not provided on the way, it is possible to prevent the drip port from becoming dirty and prevent the content liquid from leaking.

Further, in order to regulate the amount of deformation of the drip operating portion due to the pressing operation, volume change regulation means 5 for controlling the amount of deformation of the internal volume of the container body is provided between the pressing piece and the drip operating portion. Preferably. FIG. 1 shows that the pressing piece 4 is provided in a convex shape at two peripheral portions. That is, when the user presses the pressing piece 4, the drip operating portion 3 is pressed downward, but at that time, the interval between the peripheral portion of the pressing piece 4 and the drip operating portion 3 becomes small, and the drip operating portion 3 is provided on the pressing piece 4. The volume change regulating means 5 comes into contact with the drip operating portion 3 and cannot be pushed down further. At this time, the volume of the container main body is reduced due to the change of the dropping operation unit, and if the amount of the solution in the container poured out is set to a predetermined dropping amount, a constant amount of dropping is always secured. By adjusting the protrusion height of the volume change restricting means 5, it is possible to increase or decrease the pouring amount by one pressing operation. As described above, the operation of keeping the dropping amount constant is extremely easy to control and take out the solution amount in a treatment method such as diluting and dropping a liquid enzyme agent having a protein removing effect into a cleaning agent for contact lenses. It becomes. Further, even if it is used for taking out a solution that does not require such control, there is an advantage that the solution is not wasted because it can be dropped accurately in a required amount.

FIG. 5 shows another example of the volume change regulation means. A longitudinal sectional view taken along the line AA ′ of FIG. 5A is shown in FIG. In this example, an annular flat plate 40 is provided between the pressing piece 4 and the dripping operation section 3. The pressing piece is a through hole 41 provided at the center of the annular flat plate 40.
The drop operation part is pushed down by the user pressing the pressing piece further, but since the flat plate restricts the movement of the finger, it can be pressed only to a certain position, so the drop amount is constant. It can be In this example, the number of parts of the dropping operation member is increased by one as compared with the example shown in FIG. 1, but the container is more excellent in terms of ease of molding each part and adjustment of the drop amount. In this example, the cap member 50 of the container is formed in a size that covers the container body 42. This is to allow the user to clearly indicate the limit of screw advancement when the cap member is screwed, by contacting with the end surface 43 of the container body, and the container body due to over-tightening of the cap member. This is because the shape of the drip port 46 is not deformed. Furthermore, the thin seal 45 of the container body 42 maintains the airtightness inside the container during distribution and storage, and the spike is used for storing the internal solution after being opened by the spike 44 at the center of the bottom of the cap. This is done by closing the container dropping port. It should be noted that FIG. 6B shows a state in which the cap member 50 is removed. In this figure, a part 48 of the annular peripheral wall is formed to be recessed. This is because when a user with a long nail pushes the pressing piece, the user can easily push by pushing the toe to this portion.

It is desirable that the dropping operation part and the pressing piece accompanied by continuous and frequent shape changes are integrally molded from the viewpoint of durability and shape retention. They may be bonded by various bonding methods (for example, the ultrasonic welding described above). The advantage of molding both separately is that a material with elastic force can be used for the dropping operation part so that the shape can be easily deformed, and a rigid material can be used for the pressing piece so that it is difficult to deform the shape. It is possible to use a matched material, but a drawback is that the connecting point between the two is easily damaged. Further, in order to bond the main body container and the dripping operation member, it is preferable that both materials are the same, and since the material of the dripping operation portion is made of a rigid resin, the shape of the dripping operation portion is exemplified. The dome shape is thin so that it can be elastically deformed. The dropping operation portion and the pressing piece are not particularly required to be transparent, and there is no problem even if they are colored in various colors or each member is colored differently.

At the other end of the container body, a dropping port 25 for dropping the inner solution is formed in the center of the dropping pipe 26 as an inner hole. Then, as shown in FIG. 3, a burring portion 27 is formed at the tip of the dripping pipe so as to project in the outer peripheral direction of the dripping pipe 26, whereby a step is formed between the burring portion and the dripping pipe. As a result, the inner solution poured out to the outside through the dropping port can be drained well. Further, the dropping port may be a pouring path penetrating with a constant inner diameter, but it is preferable to form the tapered surface 20 so that the diameter becomes larger toward the tip as shown in FIG. The outer surface 28 reaching the end surface of the burial portion is preferably a curved surface as shown in the figure. Depending on the angle at which the container body is gripped during the dripping operation (when the container is erected vertically with the dripping port facing downward, when the container is held diagonally, etc.) This is to prevent a difference in the contact area between the two and to prevent the size of the droplet from varying based on the surface tension of the solution, whereby an excellent solution draining effect of the solution can be obtained. The operation of pouring the internal solution from the container body depends on the deformation of the dropping operation part when the pressing piece is pressed, so when the pressure on the pressing piece is released, the dropping operation part is restored and the inside of the container main body is restored. The suction power will work. At this time, since the liquid droplets remaining in the dropping port also flow back into the container, the liquid runoff from the dropping port is an important factor for achieving a certain amount of dropping.
In particular, when the solution is a liquid enzyme agent, a solution having a high viscosity is used for stabilizing the enzyme, and the solution is likely to stay in the dropping port, so that the structure has such an advantage. Can be avoided.

The inner diameter of the dropping port 25 (a in FIG. 3) and the angle of the tapered surface are appropriately determined by the physical properties such as the viscosity and surface tension of the inner solution, which cannot be generally stated, but generally. The inner diameter is in the range of 0.3 mm to 1.5 mm, and the angle of the tapered surface is 30 to 60 °. If the viscosity is higher and the inner diameter is not widened, it is considered that the internal solution will not be poured out only by the pressure during the dropping operation, which will increase the internal pressure of the container.
On the other hand, if the viscosity is low, simply turn the container upside down when dropping,
Without waiting for the pressing of the pressing piece, the dropping of the inner solution proceeds and it becomes impossible to obtain a constant amount of dropping. Further, if the angle of the tapered surface is 30 ° or less, there is a tendency for the liquid to run out at the time of dropping, and if it is 60 ° or more, the liquid that remains in the dropping port is likely to remain, so select within the above range. It is preferable.

The diameter of the dripping tube 26 and the burrs 27 may be larger than the diameter of the dripping tubes, but if there is not much difference between the burrs, drops can be formed from the burrs to the dropping tube behind. Since it may cause dripping, it is desirable that there is a difference of 0.5 mm or more, preferably 1 mm or more between the two diameters. Further, if the diameter of the dropping pipe 26 (b in FIG. 3) is too large, it is difficult to see the droplets at the dropping port, and it becomes difficult to accurately drop the droplets into the container. Therefore, it may be in the range of 2 mm to 5 mm. desirable.

In the example shown in FIG. 1, a male screw 22 is formed between the dropping pipe and the container body, and a cap member 10 for closing the dropping port is detachably screwed.
The cap member has the function of a normal cap, that is, it prevents the solution inside the container body from volatilizing and flowing out during the distribution process and during use, or preventing contamination due to the inclusion of dust, dust, etc. It has the role of protecting against physical shock from. The cap member may be connected to the container not only by screwing with the container body but also by fitting or other methods. Further, since the cap member is detachably connected to the container body, it does not have to be made of the same material as the above members (dripping operation member, container body).

When the drip opening of the container body has a through hole from the beginning, a material having rubber elasticity (eg, silicone rubber packing) instead of spikes on the inner bottom portion of the cap member that comes into contact with the drip opening. Are preferably adhered. This is because in the state where the cap member is screwed into the container body, the packing is closely attached so as to be pressed against the dripping port to improve the sealing property in the container and prevent evaporation of the internal solution in the distribution process. . On the other hand, when the drip opening is rupturablely sealed, it is preferable that the inner bottom portion of the cap member has a spike for making a hole in the sealing portion. When the dripping port is rupturable, the liquid tightness inside the container during the distribution process is sufficiently ensured, and the above-mentioned packing etc. are not required specially, so it is advantageous to reduce the number of parts and the container cost. Can be achieved. Storage during the period of use is achieved by closing the drip opening through which the spike of the cap member penetrates. The material of the cap member greatly differs depending on whether or not the spike needs to be formed. As described above, since the diameter of the dropping port is extremely thin, it is necessary that the portion where the dropping port is sealed penetrates with a fairly thin spike. In order to make a thin spike have a certain degree of rigidity, unless the material of the cap member itself is made of a rigid resin, the seal portion cannot be penetrated. Specifically, it is selected from polycarbonate, nylon, acrylic and the like. On the other hand, as long as the cap member does not require spikes as its constituent elements, it is considered that even a somewhat flexible cap (for example, polyethylene, polypropylene, etc.) can be used.

Further, the operation of opening the seal by screwing the cap member and the illicit opening recognition mechanism are interlocked with each other, so that the safe supply of the product can be further ensured. The unauthorized opening recognition mechanism in the example of the present invention is based on forming a ring-shaped cylindrical stopper 8 between the cap member 10 and the container body 2 as shown in FIG. It is desirable that the cylindrical stopper is continuously provided thinly on the open end of the cap member 10, and one end surface of the cylinder is tapered as shown in the figure. On the other hand, an annular ridge portion 29 is formed at the end of the male screw of the container body, and the forward movement of the cylindrical stopper is hindered by the engagement with the peripheral wall at one end of the cylindrical stopper. When the cap member having the cylindrical stopper is screwed with a normal force, the forward movement of the cylindrical stopper is interrupted by the annular ridge portion 29 of the container body, so that the cap member is screwed. Is also stopped when it comes into contact with the cylindrical stopper. The spike 11 provided on the inner bottom portion of the cap member at that position does not reach the point where the seal 24 of the drip port is penetrated. However, when the cap is further forcibly advanced, the peripheral wall at one end of the cylindrical stopper goes over the annular ridge of the container body and advances, and finally at the step position 30 of the body portion of the container body. The forward movement is stopped. When the cap is screwed up to this point, the opening of the dropping port by the spike is completed, and when the cap is opened, the solution can be dropped from the container. Also, since the other end surface inside the cylindrical stopper engages with the annular protruding portion of the container body and the cylindrical stopper cannot be easily changed in position and is fixed, the user should check whether the container has been tampered with. You can easily recognize how.

This cylindrical stopper is rupturablely connected to the cap member, and even if the cap member is not forcibly screwed, the cylindrical stopper is broken due to the retraction of the cap member in the opening direction and remains on the container body. It is configured like a so-called pill fur proof cap, which can completely prevent unauthorized opening of the cap. This will be described below with reference to the drawings. FIG. 4A includes a container body 2 before a cap member having a cylindrical stopper is attached, and a drip operating portion 3, a pressing piece 4, and a volume change restricting means 5 attached so as to close the opening thereof. The drip operating member is shown as a perspective view. As described above, the container body is provided with the second annular protrusion 35 in addition to the protrusion 29 so that the cylindrical stopper does not follow it even when the cap is simply opened, as shown in FIG. 4 (b). Thus, when the cap is attached to the container body, the cylindrical stopper is positioned between the first annular ridge portion 29 and the second annular ridge portion 35. The second annular projecting portion 35 projects outward from the screw thread 22, and the cylindrical stopper 8 is forced to pass over the projecting projecting portion 35 by screwing the cap member. After that, even if the cap member is opened, the cylindrical stopper cannot exceed the protruding portion 35 again, and the cylindrical stopper is separated from the cap member and remains in the container body (so-called pill fur proof). mechanism).
This is because the cross section of the cylindrical stopper has a tapered one end surface and an acute angle on the other end surface as shown in FIG.
Therefore, after the cap member is once attached to the container body, the cylindrical stopper is always cut off when removing the cap member. In FIG. 4C, the cap member is further screwed to open the drip opening of the container body,
The state which removed the cap member is shown. At this time, the cylindrical stopper further advances, gets over the annular protrusion 29, and is fixed to the container body.

As described above, since the cylindrical stopper is integrated with the container body to form a kind of design arrangement after the container is opened, it gives a preferable impression to the user. Therefore,
The cylindrical stopper may be colored in various ways to function not only as a tampering recognition mechanism but also as a decorative part of the container. Further, for example, when the container body has a cylindrical shape, the container is likely to roll when placed horizontally, so that the outer surface of the cylindrical stopper may be provided with a corner to form a hexagonal column shape like a pencil. Here, the width of the cylindrical stopper is not less than a width at which the spike of the cap member can be screwed from the non-destructive position of the drip port to the drip port opening position, and is usually about 2 to 7 mm. The inner diameter of the cylindrical stopper is slidable with respect to the screw thread 22 of the container body and smaller than the outer diameter of the annular protrusion. However, it is desirable that the cylindrical stopper is made of a material that can change its shape to some extent so as to be able to get over the protruding portion although it is compulsory as described above. Even if there is no possibility of changing the shape at all, it is possible to break the annular protrusion of the container body and advance the cylindrical stopper,
If this is done, a considerable amount of force is required to screw the cap, which may be difficult for the user to use.

Although the specific configuration of the present invention has been described above, this is merely an example, and the present invention is not limited by the above description.

For example, the illicit opening recognition mechanism is provided arbitrarily, and even if the mechanism is not provided, the tamper opening can be prevented by packaging the entire container with a shrink film or the like. Alternatively, the entire container may be packed in a paper box or the like. Further, the outer shape of the container body, the cap member, the pressing piece, etc. does not need to be cylindrical, and it is possible to prevent the container from rolling when it is placed horizontally and to make it easy to grasp when grasped. It goes without saying that these are appropriately modified without departing from the spirit of the present invention.

[0039]

As described above, in the dropping container according to the present invention, a stable dropping amount can be easily assured, particularly when handling a liquid enzyme preparation, and the structure of the container itself is simple. Because of this, its cost can be reduced. Further, by supplying a container having a high airtightness, the storage period can be extended and the range of applicable prescriptions can be widened, and application to other applications becomes possible. Further, as another aspect, the tamper-proof mechanism was adopted to ensure the safety in the distribution process, and at the same time, to prevent the aesthetics of the container from being impaired.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 shows another example of the joining mode of the dropping operation portion and the pressing piece of the present invention.

FIG. 3 is an enlarged cross-sectional view showing an example of a drip port.

FIG. 4 (a) shows another example of the container body of the present invention,
(B) is a perspective view showing a state in which a cap member is attached to the container body, and (c) is a state in which the cap member is removed and a cylindrical stopper is integrated with the container body.

5A shows another example of the present invention, FIG. 5B is a perspective view of the container body with the cap member removed, and FIG. 5C is a sectional view taken along line AA ′ in FIG.

[Explanation of symbols]

1 dripping container 2 container body 3 Drip operation part 4 pressing piece 5, 40 Volume change regulation means 8 Cylindrical stopper 10, 50 Cap member 11,44 spikes 20 Tapered surface 22 screws 24, 45 thin seal 25 Drip port 26 Dropping tube 27 Flap Section 29, 35 Annular protrusion 30, 43 steps

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[Procedure amendment]

[Submission date] July 4, 2002 (2002.7.4)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 5]

[Figure 4]

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 55/08 A61J 1/00 313A 313B F term (reference) 3E014 PA01 PB03 PB08 PC04 PD15 PE14 PE15 PE16 PF06 PF10 3E084 AA02 AA12 AA24 AA25 AA26 AB01 AB05 BA01 BA08 CA01 DA01 DB02 DB12 DB13 DB18 FA09 FB01 GA01 GB01 GB08 KA13 KB02 LA01 LA17 LB02 LB07 LC01 LF06

Claims (7)

[Claims] 1. A container body having a drip opening for dropping a predetermined solution contained therein, and a cap member detachably attached to the container body for opening and closing the drip opening of the container body. And a part of the container wall of the container body is provided, and the inner volume of the container body is reversible by the deformation due to the pressing operation and the deformation due to the restoration to the original shape based on the elasticity of the constituent materials. And a drip operating member that is configured integrally with the drip operating part and that has a pressing piece that allows a pressing operation in the vertical direction with respect to the operating part. Liquid dropping container. 2. The liquid dropping container according to claim 1, wherein the dropping operation member and the container body are made of the same material. 3. A volume change regulation means for regulating a deformation amount of the drip operation portion by a pressing operation and regulating a variation amount of an inner volume of the container body due to the deformation of the drip operation member, the drip operation portion and the pressing portion. The liquid dropping container according to claim 1, wherein the liquid dropping container is provided between the liquid dropping container and the piece. 4. The liquid dropping container according to claim 1, wherein the volume change restricting means is one or more convex portions provided between the pressing piece and the dropping operation portion. 5. The liquid dropping container according to claim 1, wherein the volume change restricting means is a stopper provided in an annular shape between the pressing piece and the dropping operation portion. 6. A container main body having a drip opening that is openably sealed for dropping a predetermined solution contained therein, and a drip opening of the container main body that is detachably attached to the container main body. A liquid dripping container comprising a cap member having a spike for opening the seal portion projecting from the center of the inner bottom portion, and a cylindrical stopper thinly connected to the opening end of the cap member. An annular protrusion is provided around the end of the threaded screw part (with the member), and one end surface of the cylindrical stopper is locked to the protrusion to control the screw advance of the cap member before opening. With respect to the forced screwing at the time of opening, the cylindrical stopper advances beyond the protruding portion, the other end surface of the cylindrical stopper engages with the protruding portion of the container body, and the inner bottom portion of the cap member By the spike of It is configured to open the drip opening seal of the container body, and by screwing back the cap member, the thin-walled continuous portion with the cylindrical stopper is broken so that the cylindrical stopper remains in the container body. And a liquid dropping container. 7. The liquid dropping container according to claim 6, further comprising the dropping operation member according to claim 1.