JP6541336B2 - Method of manufacturing a reduced volume container - Google Patents

Description

  The present invention relates to a container such as a medicine container such as an eye drop container, a nasal container, and an application container, which is contained in a container in the container, for example, liquid substance, liquid substance, semi-liquid substance, solid substance, powder The present invention relates to a reduction container for reducing the content of contents (hereinafter referred to as "content") made of solid matter such as granules, and a method of manufacturing the reduction container.

  2. Description of the Related Art Conventionally, there is a demand for reducing the internal volume of, for example, pharmaceutical containers such as eye drop containers, nasal containers, and application containers.

  That is, with regard to the medicine prescribed at the hospital, it becomes easy to consume in a short time by reducing the internal volume of the medicine container. Therefore, the patient can use the medicine before the expiration date.

  Thus, regular prescriptions are possible for the patient. In other words, it consumes the medicine in a short period of time, so it is necessary to prescribe the medicine again, and it has the effect of prompting an outpatient visit for a patient who needs regular medical examination.

  Thus, in the field of pharmaceutical containers, there is a growing demand to reduce the internal volume.

Patent No. 2607842

  However, in order to reduce the internal volume of the contents stored in the container in this way, it is conceivable to reduce the size of the container itself as compared with the prior art.

  However, for example, with respect to a pharmaceutical container, as defined in Article 50 of the Pharmaceutical Affairs Act, a pharmaceutical product must have certain matters described in its direct container or direct encapsulation.

  For this reason, if the size of the medicine container itself is small, the display space is narrowed, and it becomes difficult to describe certain matters as defined in Article 50 of the Pharmaceutical Affairs Law.

  In addition, Patent Document 1 (Japanese Patent No. 2607842) relates to a collection container assembly, and a small amount suitable for collecting a small amount of blood from a patient and maintaining the blood in a stable state for a subsequent test. A collection container and a cap for the container are disclosed.

  Although the container of this patent document 1 is provided with a skirt in the lower part of the container, this skirt inserts the skirt formed in the lower part of the container in the doubled space of the side wall of the cap. To make the container stand alone.

  Further, an extension member prepared separately is attached to a skirt portion formed in the lower portion of the container to secure an additional space for attaching a label.

  Therefore, the container of Patent Document 1 does not have a skirt portion for reducing the internal volume of the container itself, but the internal volume itself remains unchanged, and the cap is attached to the container to make the container stand alone. For wearing.

  Furthermore, the skirt portion of the container of Patent Document 1 is not for securing a space for attaching a label while securing a reduction in volume.

  By the way, as a method for producing a reduced volume container to meet such a demand for reduced volume, a container having a reduced volume is injection-molded or blow-molded in a primary step, and the bottom portion of the container produced in this primary step is In the next step, a manufacturing method (so-called "injection assembly container") can be considered in which a separately-formed, pot-shaped extended portion is provided.

  However, such a method for producing a reduced volume container requires an injection process or blow process in the primary process, an assembly process in the secondary process, and a complicated and complicated process, resulting in high manufacturing cost. In addition, in the assembling process of the secondary process, the foreign matter may be attached, and the quality may be degraded.

In addition, as a method for producing a reduced volume container in order to meet the demand for reduced volume as described above, a method for producing a reduced volume container using injection molding can be considered.
FIG. 16 is a longitudinal sectional view of an injection integrally molded container 100 manufactured using such injection molding.

  As shown in FIG. 16, the injection integrally molded container 100 is provided with a container main body 104 in which a storage portion 102 for storing a bottomed cylindrical content is formed, and is not shown in the upper part of the container main body 104. The mouth portion 108 is provided with a male screw 106 for detachably mounting a lid member such as a cap.

  Further, a flange 112 is extended outward in the outer diameter direction from the side peripheral wall 110 of the container main body 104 below the opening 108, and a skirt-shaped extension extended so as to expand in diameter downward from the outer end of the flange 112 The foot 114 is provided.

  In the injection-integrally-molded container 100 thus configured, for example, by setting the portion indicated by reference numeral 116 to the gate position, it is possible to manufacture a miniaturizing container using injection molding.

  However, in the injection-integrally-molded container 100 configured as described above, the side wall is constituted by the double side wall of the side peripheral wall 110 of the container main body 104 and the extending leg portion 114, and there is no visibility. It is not possible to confirm the content stored in the storage portion 102 of the container main body 104 and the foreign matter contained in the content.

  Therefore, in such an injection-integrally-molded container 100, it is difficult to confirm, for example, the type, the amount of remaining liquid, and foreign matter contained in the content of the content stored in the storage portion 102 of the container body 104. is there.

  Moreover, in the injection-integrally-molded container 100 having such a configuration, when used as an eye drop container, the container body 104 is accommodated even when the spread foot portion 114 is pinched and pushed with a finger or the like (so-called "squeeze"). It is difficult to push out (discharge) the contents contained in the portion 102 from the container body 14.

Furthermore, as shown in FIG. 16, in the injection-integrally-molded container 100, the diameter of the circumferential side wall 110 of the housing portion 102 changes depending on the diameter of the container body 104, and the storage amount changes.
For example, when the injection-integrally-molded container 100 is used for eye drops and nasal drops, the size of the diameter of the container body 104 is limited due to the relationship between the nozzle and the pump.

For this reason, if it is going to ensure the capacity | capacitance required for the limited use period by the magnitude | size of the aperture diameter of the limited container main body 104, the length of the trunk | drum of the container main body 104 will become long.
As a result, the length of the injection integral molding container 100 becomes long, and the injection integral molding container 100 itself becomes large, which is inconvenient in handling, storage and the like.

  In view of such a present situation, the present invention can reduce the internal volume of the container, and can secure a display space portion for displaying information such as labels and printing without reducing the size of the container itself, and is also self-supporting The present invention aims to provide a possible volume reduction container and a method of manufacturing the volume reduction container.

  Further, the object of the present invention is that the assembling process of the secondary process can be omitted by integral molding by the injection molding process and the blow molding process performed in a single molding machine, and a complicated and complicated process is unnecessary. Therefore, it is an object of the present invention to provide a method of manufacturing a reduced amount container and a reduced amount container, which can reduce the cost and that there is no risk of foreign matter adhering and the quality is not reduced.

  Moreover, the object of the present invention is to confirm the type, residual liquid amount, etc. of the contents stored in the container of the container main body with excellent visibility, or to check the foreign substances contained in the contents. The present invention aims to provide a method for producing a reduced amount container, and a method for producing the reduced amount container.

  Furthermore, the object of the present invention is that when used as an eye drop container, it is pinched and pressed with a finger or the like (so-called "squeeze") to push out the content stored in the storage portion of the container main body from the container main body (discharge) It is an object of the present invention to provide a small-volume container which is easy to do and a method of manufacturing the small-volume container.

The present invention was invented to achieve the problems and objectives in the prior art as described above, and the present invention relates to a container for reducing
It is a volume reduction container in which the internal volume of the container is reduced,
A container main body in which a storage portion for storing contents is formed;
An extending foot portion in which the side peripheral wall of the container body extends downward from the bottom of the container body ;
A shoulder having a gradually decreasing diameter of the container body;
And a mouth formed in the center of the shoulder,
The cross-sectional area of the opening is smaller than the cross-sectional area of the container body .

  With such a configuration, the internal volume of the container can be reduced, and the side wall of the container body is provided with the extending foot portion extending downward from the bottom of the container body, so the container itself is large For example, a display space portion for displaying information such as labels and printing can be secured without reducing the size.

  In addition, since the side peripheral wall of the container main body is provided with the extending foot portion extending downward from the bottom of the container main body, the volume reduction container itself can be made self-supporting, which is convenient.

Furthermore, since the extending leg portion is provided by extending the side peripheral wall of the container body downward from the bottom portion of the container body, the side peripheral wall of the container body and the extending leg portion do not overlap in a double manner. The housing portion is surrounded only by the side peripheral wall of the container body.
Therefore, the visibility is excellent, and it is easy to confirm, for example, the type, the amount of remaining liquid, the foreign matter contained in the content, and the like of the content stored in the storage portion of the container body.

  For example, when using a small-volume container for eye drops and nasal drops, the size of the diameter of the container body is limited due to the relationship between the nozzle and the pump.

Also in this case, since the cross-sectional area of the mouth is formed smaller than the cross-sectional area of the container body, the limited size of the diameter of the container body secures the capacity necessary for the limited period of use. However, the length of the body of the container body does not increase.
As a result, the length of the volume reduction container becomes long, and the volume reduction container itself is convenient for handling, storage, etc. without upsizing.

  Moreover, the volume reduction container of the present invention is characterized in that the volume reduction container is a medicine container.

  Thus, when the volume reduction container of the present invention is used, for example, in a medicine container such as an eye drop container, a nasal drop container, or an application container, the internal volume can be reduced.

  That is, with regard to the medicine prescribed at the hospital, it becomes easy to consume in a short time by reducing the internal volume of the medicine container. Therefore, the patient can use the medicine before the expiration date.

  Thus, regular prescriptions are possible for the patient. In other words, it consumes the medicine in a short period of time, so it is necessary to prescribe the medicine again, and it has the effect of prompting an outpatient visit for a patient who needs regular medical examination.

  Furthermore, since the size of the pharmaceutical container itself is the same as that of the conventional container, a display space can be secured, and it is possible to describe certain matters defined in Article 50 of the Pharmaceutical Affairs Act.

  The amount reduction container according to the present invention is characterized in that the extending foot portion is formed on the entire side peripheral wall of the container body.

  With such a configuration, the extending foot portion is formed on the entire peripheral wall of the container body, so that the structural strength of the reduced amount container does not decrease, and, for example, labels, printing, etc. It is possible to secure the maximum display space for displaying information.

  Further, the amount reducing container of the present invention is characterized in that the extending foot portion is formed on a part of the side peripheral wall of the container body.

  By configuring in this way, the extended foot portion is formed on a part of the side peripheral wall of the container body, so the amount of the resin material that makes up the reduced volume container can be reduced, and the cost can also be reduced. .

  Further, since the extending foot portion is formed on a part of the side peripheral wall of the container main body, the portion where the extending foot portion is not formed becomes a notch portion, so the notch portion corresponds to the position of the volume reduction container (For example, the front etc.) can be confirmed.

  Therefore, when the contents are stored in the storage portion of the container main body by utilizing this cutout portion, the direction of the volume reduction container can be adjusted by detecting the cutout portion with a sensor or the like, and the mechanization and the like are easy. become.

  Further, the volume-reduced container of the present invention is characterized in that a reinforcing rib is formed between the bottom of the container body and the extending leg.

  With such a configuration, since the reinforcing rib is formed between the bottom of the container body and the extending leg portion, the reinforcing rib can secure the structural strength of the reduced-volume container. In addition, the self-supporting property of the volume reduction container itself is also improved by the reinforcing rib, which is convenient.

  Furthermore, since the position of the volume reduction container (for example, the front and the like) can be confirmed by the reinforcing rib, the reinforcing rib can be used when the contents are accommodated in the housing portion of the container main body by using the reinforcing rib. By detecting the sensor with a sensor etc., it is possible to adjust the orientation etc. of the volume reduction container and to facilitate the mechanization etc.

  Further, the volume-reduced container of the present invention is characterized in that the bottom portion of the container body is formed in a tapered shape or a dome shape protruding downward.

  By this configuration, the tapered shape or dome is formed by pressing the bottom of the container body formed in a tapered shape or a dome shape protruding downward from the lower side with a finger or the like, for example. The bottom portion of the shape is deformed and easy to move upward, and it is easy and convenient to push out (discharge) the contents stored in the storage portion of the container body from the container body.

  In addition, when the volume reduction container is used as a pump container, the bottom portion of the container body is formed in a tapered shape or a dome shape protruding downward, so that a volume reduction container excellent in measures against residual liquid can be provided. .

  In addition, since the bottom of the container body is thus formed in a tapered shape or a dome shape so as to protrude downward as described above, since the bottom is shaped so as to be easily deformed inward, when used for an eye drop container By holding the extended foot portion with a finger or the like (so-called "squeeze"), the effect of discharging the content stored in the storage portion of the container body is excellent.

  Further, the volume-reduced container of the present invention is characterized in that the bottom of the container body is formed in a tapered shape or a dome shape projecting upward.

  With this configuration, the bottom of the container body is formed in a tapered shape or a dome shape protruding upward, and accordingly, the internal volume of the contents of the container of the container body is further increased. It can be reduced in volume.

  In addition, since the bottom of the container body is thus formed in a tapered shape or a dome shape projecting upward, the bottom is shaped so as to be easily deformed inward, so it is used for an eye drop container In this case, holding the extended foot portion with a finger or the like (so-called "squeeze") is excellent in the effect of discharging the content stored in the storage portion of the container body.

  Further, in the reduced volume container of the present invention, the bottom of the container body is formed in a bellows shape.

  With this configuration, the bottom formed in the bellows shape is easily moved upward by deforming the bottom formed in the bellows shape, for example, by pushing the bottom formed in the bellows shape upward from below with a finger or the like, for example. It is easy and convenient to push out (discharge) the content stored in the container of the container from the container body.

  In addition, since the bottom is shaped so as to be easily deformed inward, when used in an eye drop container, it is contained in the container of the container main body by pinching the extension foot with a finger (so-called "squeeze") It is superior by the effect of discharging the content.

Moreover, the method for producing a reduced volume container of the present invention is
It is a volume reduction container in which the internal volume of the container is reduced,
A container main body in which a storage portion for storing contents is formed;
An extending foot portion in which the side peripheral wall of the container body extends downward from the bottom of the container body;
A method of manufacturing a reduced volume container comprising
Using a mold for injection molding
A main body portion provided with a storage portion forming portion to be the container main body;
An extending foot portion which is expanded in diameter from the side peripheral wall of the main body portion and which extends downward from the bottom portion of the main body portion;
Injection molding process to form a parison with
Using a blow mold
A blow molding step of blowing air from the opening of the main body of the parison obtained by the injection molding, and expanding the side peripheral wall of the main body to form a container main body;
And the like.

  With this configuration, the container body includes the container body in which the storage portion for storing the contents is formed, and the extending foot portion in which the side peripheral wall of the container body extends downward from the bottom portion of the container body. An integrated reduced volume container can be easily manufactured and the cost can be reduced.

  In addition, since the integral molding is performed by the injection molding process and the blow molding process performed in a single molding machine, the assembly process of the secondary process can be omitted, and the complicated and complicated process is unnecessary, and the cost can be reduced. And there is no risk of foreign matter adhering, and the quality does not deteriorate.

  According to the present invention, the internal volume of the container can be reduced, and the side wall of the container body is provided with the extending foot portion extending downward from the bottom of the container body. For example, a display space portion for displaying information such as labels and printing can be secured without reducing the size.

  In addition, since the side peripheral wall of the container main body is provided with the extending foot portion extending downward from the bottom of the container main body, the volume reduction container itself can be made self-supporting, which is convenient.

Furthermore, since the extending leg portion is provided by extending the side peripheral wall of the container body downward from the bottom portion of the container body, the side peripheral wall of the container body and the extending leg portion do not overlap in a double manner. The housing portion is surrounded only by the side peripheral wall of the container body.
Therefore, the visibility is excellent, and it is easy to confirm, for example, the type, the amount of remaining liquid, the foreign matter contained in the content, and the like of the content stored in the storage portion of the container body.

  For example, when using a small-volume container for eye drops and nasal drops, the size of the diameter of the container body is limited due to the relationship between the nozzle and the pump.

Also in this case, since the cross-sectional area of the mouth is formed smaller than the cross-sectional area of the container body, the limited size of the diameter of the container body secures the capacity necessary for the limited period of use. However, the length of the body of the container body does not increase.
As a result, the length of the volume reduction container becomes long, and the volume reduction container itself is convenient for handling, storage, etc. without upsizing.

  Therefore, when the volume reduction container of the present invention is used, for example, in a medicine container such as an eye drop container, a nasal drop container, or an application container, the internal volume can be reduced.

  That is, with regard to the medicine prescribed at the hospital, it becomes easy to consume in a short time by reducing the internal volume of the medicine container. Therefore, the patient can use the medicine before the expiration date.

  Thus, regular prescriptions are possible for the patient. In other words, it consumes the medicine in a short period of time, so it is necessary to prescribe the medicine again, and it has the effect of prompting an outpatient visit for a patient who needs regular medical examination.

  Furthermore, since the size of the pharmaceutical container itself is the same as that of the conventional container, a display space can be secured, and it is possible to describe certain matters defined in Article 50 of the Pharmaceutical Affairs Act.

  Further, according to the present invention, the container body includes the container body in which the accommodating portion for accommodating the contents is formed, and the extending foot portion in which the side peripheral wall of the container body extends downward from the bottom of the container body An integrated reduced volume container can be easily manufactured and the cost can be reduced.

  In addition, since the integral molding is performed by the injection molding process and the blow molding process performed in a single molding machine, the assembly process of the secondary process can be omitted, and the complicated and complicated process is unnecessary, and the cost can be reduced. And there is no risk of foreign matter adhering, and the quality does not deteriorate.

FIG. 1 (A) is a front view of the volume reduction container of the present invention, FIG. 1 (B) is a side view of the volume reduction container of FIG. 1 (A), and FIG. 1 (C) is a side view of FIG. It is a top view of a volume reduction container. FIG. 2A is a cross-sectional view taken along line A-A of FIG. 1C, and FIG. 2B is a cross-sectional view taken along line B-B of FIG. FIGS. 3A to 3B are schematic views showing an injection molding process for molding a parison. FIGS. 4A to 4B are schematic views showing an injection molding process for molding a parison. FIG. 5A to FIG. 5B are schematic views showing a blow molding process. 6A to 6B are schematic views showing a blow molding process. FIG. 7 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 7 (B) is another embodiment of the volume reduction container of the present invention. FIG. 7 is a cross-sectional view similar to FIG. 2 (B), and FIG. 7 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention. FIG. 8 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 8 (B) is another embodiment of the volume reduction container of the present invention. FIG. 8 is a cross-sectional view similar to FIG. 2 (B) shown, and FIG. 8 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention. FIG. 9 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 9 (B) is another embodiment of the volume reduction container of the present invention. FIG. 9 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention. FIG. 10 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 10 (B) is another embodiment of the volume reduction container of the present invention. FIG. 10 is a cross-sectional view similar to FIG. 2 (B), and FIG. 10 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention. FIG. 11 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 11 (B) is another embodiment of the volume reduction container of the present invention. FIG. 11 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention. 12 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 12 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown. FIG. 13 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 13 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown. FIG. 14 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 14 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown. FIG. 15 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 15 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown. FIG. 16 is a longitudinal sectional view of an injection-integrally molded container 100 manufactured using injection molding.

Hereinafter, embodiments (examples) of the present invention will be described in more detail based on the drawings.
Example 1

  Fig. 1 (A) is a front view of the volume reduction container of the present invention, Fig. 1 (B) is a side view of the volume reduction container of Fig. 1 (A), and Fig. 1 (C) is a side view of Fig. 1 (A). 2A is a cross-sectional view taken along the line A-A of FIG. 1C, and FIG. 2B is a cross-sectional view taken along the line B-B of FIG. 1C. It is.

  In FIG. 1 (A)-FIG. 2 (B), the code | symbol 10 has shown the volume reduction container of this invention altogether.

  The container 10 of the present invention is, for example, a container such as an eye drop container, a nasal container, or a pharmaceutical container such as an application container, which is contained in the container in the container. And a small amount container for reducing the internal volume of the contents made of solid matter, such as solid matter and powdery matter.

  As shown in FIG. 1 (A) to FIG. 2 (B), the volume reducing container 10 of the present invention comprises a container body 14 in which a container 12 for containing contents having an elliptical cross section is formed; The shoulder 16 is gradually reduced in diameter. At the center of the shoulder 16 is provided a mouth 20 having a male screw 18 formed thereon for detachably mounting a lid member such as a cap (not shown).

  In this embodiment, the male screw 18 is formed in the mouth 20. However, a female screw may be used. For example, so-called "snap-fit" fitting unevenness may be provided. .

  In this embodiment, the container main body 14 has an elliptical cross section, but the shape of the container main body 14 is not limited. For example, the container main body 14 having a circular cross sectional shape, a rectangular cross sectional shape, and a polygonal cross sectional shape It is possible to change as appropriate.

  Furthermore, as shown to FIG. 1 (A)-FIG. 2 (B), the extending leg part 26 which extended the side peripheral wall 22 of the container main body 14 from the bottom part 24 of the container main body 14 downward is provided. In this embodiment, the extending foot portion 26 is formed on the entire circumference of the side peripheral wall 22 of the container body 14.

  By configuring in this manner, the extending foot portion 26 is formed on the entire circumference of the side peripheral wall 22 of the container body 14, so that the structural strength of the container 10 for reducing the amount does not decrease. It is possible to secure the maximum display space for displaying information such as labels and printing.

  Further, the internal volume of the housing portion 12 of the container body 14 of the container 10 can be reduced, and the side wall 22 of the container body 14 is provided with an extending foot 26 extending downward from the bottom 24 of the container body 14 Therefore, it is possible to secure a display space portion for displaying information such as labels and printing without reducing the size of the container itself.

  Further, since the side peripheral wall 22 of the container body 14 is provided with the extending foot portion 26 extending downward from the bottom portion 24 of the container body 14, the volume reduction container itself can be made self-supporting, which is convenient.

Furthermore, the side peripheral wall 22 of the container body 14 is provided with the extending foot portion 26 extending downward from the bottom portion 24 of the container body 14, so the side peripheral wall 22 of the container body 14 and the extending foot portion 26 The container 12 of the container body 14 is surrounded only by the side peripheral wall 22 of the container body 14 without overlapping.
Therefore, the visibility is excellent, and it is easy to confirm, for example, the type, the amount of remaining liquid, the foreign matter contained in the contents, and the like of the contents accommodated in the accommodation portion 12 of the container main body 14.

  By the way, for example, when using the volume-reduction container 10 for eyedrops and nose drops, the size of the diameter of the container body 14 is limited due to the relationship between the nozzle and the pump.

Also in this case, since the cross-sectional area of the opening 20 is smaller than the cross-sectional area of the container body 14, the limited size of the diameter of the container body 14 requires the capacity required for the limited period of use. The length of the body of the container body 14 does not increase even if
As a result, the length of the volume reduction container 10 becomes long, and the volume reduction container 10 itself is convenient for handling, storage, etc. without upsizing.

  Therefore, when the volume reduction container 10 of the present invention is used, for example, in a medicine container such as an eye drop container, a nasal drop container, or an application container, the internal volume can be reduced.

  That is, with regard to the medicine prescribed at the hospital, it becomes easy to consume in a short time by reducing the internal volume of the medicine container. Therefore, the patient can use the medicine before the expiration date.

  Thus, regular prescriptions are possible for the patient. In other words, it consumes the medicine in a short period of time, so it is necessary to prescribe the medicine again, and it has the effect of prompting an outpatient visit for a patient who needs regular medical examination.

  The method for manufacturing the volume-reduced container 10 of the present invention configured as described above will be described below based on FIGS. 3 (A) to 6 (B).

  FIGS. 3A to 4B are schematic views showing an injection molding process for forming a parison, and FIGS. 5A to 6B are schematic views showing a blow molding process.

  First, as shown in FIG. 3A, an injection mold 30 is prepared. The injection mold 30 includes a left mold 32 and a right mold 34 which are configured to be capable of coming into contact with each other. Further, a lower mold 38 which can be detachably fitted is provided in a recess 36 formed when the left mold 32 and the right mold 34 are clamped.

  Furthermore, when the left mold 32 and the right mold 34 are clamped, the recess 31 formed in the upper portion between the left mold 32 and the right mold 34 can be detachably fitted. An upper mold 42 having a substantially cylindrical protrusion 40 is formed, and a screw mold 43 having a shape corresponding to the external thread 18 of the opening 20 of the reduction container 10.

  As shown in FIG. 3A, the left mold 32, the right mold 34, the lower mold 38, the upper mold 42, and the screw mold 43 are clamped. As a result, as described later, it is formed to extend from the gap 44a for the main body corresponding to the main body 50 of the parison 46 to be the container 14 and from the gap 44a for the main body and to extend downward. An injection molding gap (cavity) 44 is formed, which includes the extension foot gap 44 b corresponding to the extension foot 26.

  Further, as shown in FIG. 3A, the lower mold 38 is formed with a gate 38a connected to an injection molding machine not shown separately.

  Then, in this state, as shown in FIG. 3B, the molten resin is injected into the injection gap (cavity) 44 through the gate 38a of the lower mold 38.

  Thereafter, as shown in FIG. 4A, the left mold 32, the right mold 34, and the lower mold 38 are moved in directions of separating from each other. As a result, as shown in FIG. 4B, the parison 46 is formed on the upper mold 42.

  That is, as shown in FIG. 4B, the parison 46 is expanded in diameter from the side peripheral wall 52 of the main body 50 provided with the accommodation portion forming part 48 to be the container main body 14 and the main body 50. In addition, the side peripheral wall 52 of the main body 50 is extended downward from the bottom 54 of the main body 50, and an extending foot 56 corresponding to the extending foot 26 is provided.

  Next, as shown in FIG. 5A, the parison 46 thus formed is blow-molded using a blow-molding mold 60.

  That is, as shown in FIG. 5A, the blow molding mold 60 includes a left mold 62, a right mold 64, and an upper mold 66 which are configured to be capable of coming into contact with each other. A screw mold 67 fitted to the external thread 18 of the mouth 20 of the volume reduction container 10 is provided. Further, a lower mold 70 which can be detachably fitted is provided in a recess 68 formed when the left mold 62 and the right mold 64 are clamped.

  Further, as shown in FIG. 5A, when the left mold 62 and the right mold 64 are clamped to the left mold 62 and the right mold 64, a blow gap corresponding to the container body 12 is obtained. 62a and 64a are respectively formed.

  Then, as shown in FIG. 5B, the upper mold 66, the left mold 62, the right mold 64, and the lower mold 70 thus formed are clamped. And although not shown, an air blowing port is formed in the upper mold 66 so as to be openable and closable, and an accommodation portion forming portion of the main body 50 is formed through the port of the parison 46 through the air blowing port. Air is blown into the inside of 48 to perform blow molding.

In this case, as shown in FIG. 5B, the lower portion 62b of the blow gap 62a formed by the left mold 62 and the lower mold 70, and the right mold 64 and the lower mold 70 are formed. The lower portion 64 b of the blow gap 64 a holds the extending leg 56 corresponding to the extending leg 26.
Thus, the container body 14 can be formed by expanding the side peripheral wall 52 of the main body 50 of the parison 46 while maintaining the injection shape of the parison 46 during blow molding.

  Thereby, as shown to FIG. 6 (A), the side peripheral wall 52 of the main-body part 50 of the parison 46 is expanded, and the container main body 14 is formed. And if it takes out from the blow molding die 60, as shown to FIG. 6 (B), the quantity reduction container 10 of this invention of a structure as shown to FIGS. 1-2 will be shape | molded integrally.

  That is, by performing the injection molding process for molding the parison 46 and the blow molding process in this manner, the container main body 14 in which the housing portion 12 for housing the contents is formed, and the side peripheral wall 22 of the container main body 14 It is possible to easily manufacture the integrated volume reduction container 10 having the extension foot portion 26 extending downward from the bottom portion 24 of the main body 14 and reducing the volume of the container, thereby reducing the cost. Can.

  In addition, since the integral molding is performed by the injection molding process and the blow molding process performed in a single molding machine, the assembly process of the secondary process can be omitted, and the complicated and complicated process is unnecessary, and the cost can be reduced. And there is no risk of foreign matter adhering, and the quality does not deteriorate.

In this case, the material of the container 10 of the present invention is not particularly limited as long as it is a thermoplastic resin capable of injection molding and blow molding, and the container 10 of the present invention It may be appropriately selected according to the use application of
(Example 2)

  FIG. 7 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 7 (B) is another embodiment of the volume reduction container of the present invention. FIG. 7 is a cross-sectional view similar to FIG. 2 (B), and FIG. 7 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention.

  The volume reduction container 10 of this embodiment has basically the same structure as the volume reduction container 10 of the embodiment shown in FIGS. 1 to 6, and the same reference numerals are given to the same components. Therefore, the detailed description is omitted.

  In the volume reducing container 10 of this embodiment, as shown in FIGS. 7A to 7C, the extending foot portion 26 is formed on a part of the side peripheral wall 22 of the container body 14.

  That is, in this embodiment, as shown in FIGS. 7A to 7C, the four extending legs 26a to 26d are formed with the extending legs 26 separated by a central angle of 90 °. The four notches 28 are formed between the extended legs 26a to 26d.

  By configuring in this manner, the extending foot portion 26 (26a to 26d) is formed on a part of the side peripheral wall 22 of the container main body 14, so the amount of resin material constituting the container 10 for reducing the amount is reduced. And cost can be reduced.

  Further, since the extending foot portion 26 (26a to 26d) is formed on a part of the side peripheral wall 22 of the container main body 14, the portion where the extending foot portion 26 (26a to 26d) is not formed is a notch As it becomes 28, the position (for example, the front etc.) of the volume reduction container 10 can be confirmed by this notch 28.

  Therefore, when the contents are accommodated in the housing portion 12 of the container main body 14 by utilizing the cutout portion 28, the orientation of the container 10 can be adjusted by detecting the cutout portion 28 with a sensor or the like. , Mechanization etc. become easy.

In the case of this embodiment, the extending foot portion 26 is constituted by the four extending foot portions 26a to 26d, but the number, the arrangement position, the dimensions (length, thickness) and the like are particularly limited. It is not something, and it should be changed appropriately.
(Example 3)

  FIG. 8 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 8 (B) is another embodiment of the volume reduction container of the present invention. FIG. 8 is a cross-sectional view similar to FIG. 2 (B), and FIG. 8 (C) is a bottom view showing another embodiment of the volume reduction container of the present invention.

  The volume reduction container 10 of this embodiment has basically the same structure as the volume reduction container 10 of the embodiment shown in FIGS. 1 to 6, and the same reference numerals are given to the same components. Therefore, the detailed description is omitted.

  In the reduced volume container 10 of this embodiment, as shown in FIGS. 8A to 8C, a reinforcing rib 72 is formed between the bottom portion 24 of the container body 14 and the extending foot portion 26. It is formed.

  That is, in this embodiment, as shown in FIGS. 8A to 8C, the reinforcing ribs 72 are formed of four reinforcing ribs 72a to 72d which are formed with a central angle of 90 ° apart. It is done. As shown in FIGS. 8A to 8B, the reinforcing ribs 72a to 72d have a substantially triangular truss shape in which the base end side (the bottom 24 side of the container body 14) is wider. The reinforcement strength is improved.

  With this configuration, the reinforcing ribs 72 (72a to 72d) are formed between the bottom 24 of the container main body 14 and the extending legs 26. Therefore, the reinforcing ribs 72 (72a to 72d) are formed. The structural strength of the reduced volume container 10 is secured. Further, the reinforcing ribs 72 (72a to 72d) improve convenience of the self-reliance of the container 10 itself.

  Furthermore, since the position (for example, the front etc.) of the volume reduction container 10 can be confirmed by the reinforcing ribs 72 (72a to 72d), the contents are stored in the container main body using the reinforcing ribs 72 (72a to 72d). When the reinforcing ribs 72 (72a to 72d) are accommodated by the sensor or the like when being accommodated in the accommodating portion 12 of 14, the orientation of the volume reduction container 10 can be adjusted and the mechanization can be facilitated.

  In the case of this embodiment, although the reinforcing ribs 72 are formed of the four reinforcing ribs 72a to 72d, the number, the arrangement position, the dimensions (length, thickness), etc. of the reinforcing ribs 72 are not particularly limited. You can change it as appropriate.

  For example, as shown in FIGS. 9A to 9C, the reinforcing ribs 72 (72a to 72d) may be formed in a rectangular shape and configured from reinforcing ribs 72a to 72b intersecting with two crosses. You can also. Moreover, as shown to FIG. 10 (A)-FIG.10 (C), it can also comprise from the rib 72a-72d for reinforcement formed in parallel.

Furthermore, as shown in FIGS. 11 (A) to 11 (C), it is also possible to constitute from the reinforcing rib 72e formed on the bottom 24 of the container main body 14 concentrically with the extending foot 26. . The number of reinforcing ribs 72e formed in the bottom portion 24 of the container body 14 in a concentric shape is not particularly limited.
(Example 4)

  12 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 12 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown.

  The volume reduction container 10 of this embodiment has basically the same structure as the volume reduction container 10 of the embodiment shown in FIGS. 1 to 6, and the same reference numerals are given to the same components. Therefore, the detailed description is omitted.

  In the reduced volume container 10 of this embodiment, as shown in FIGS. 12A to 12B, the bottom portion 24 of the container body 14 is formed in a tapered shape or a dome shape 24a protruding downward. It is done.

  That is, in this embodiment, as shown in FIG. 12A to FIG. 12B, a tapered shape is provided so as to project downward from the side wall 22a in the short direction of the side peripheral wall 22 of the container body 14 downward. Or, it is formed in dome shape 24a.

  With such a configuration, the tapered shape projecting downward, or the tapered shape of the container main body 14 formed in the dome shape 24a, for example, by pressing the lower portion upward with a finger from the lower side, Alternatively, the bottom portion 24 of the dome shape 24a is deformed and easily moved upward, and it is easy and convenient to push out (discharge) the content stored in the storage portion 12 of the container main body 14 from the container main body 14.

  In addition, when the container 10 is used as a pump container, the bottom portion 24 of the container body 14 is formed in a tapered shape projecting downward, or in a dome shape 24a, so the amount of the liquid is reduced with excellent measures against residual liquid. A container 10 can be provided.

  Although not shown, the bottom portion 24 of the container body 14 may be formed in a tapered shape or a dome shape protruding toward the lower center from the side wall in the longitudinal direction of the side peripheral wall 22 of the container body 14.

  Furthermore, as shown in FIGS. 13A to 13B, from the one side of the side wall 22a in the short direction of the side peripheral wall 22 of the container body 14, the other side of the side peripheral wall 22 of the container body 14 is short. A tapered shape or a dome shape 24c may be formed so as to protrude downward toward the side wall 22a in the manual direction.

  With this configuration, the side wall 22a in the lateral direction of the side peripheral wall 22 of the container main body 14 is provided with the extending foot portion 26 extending downward from the bottom portion 24 of the container main body 14. It is also self-sustainable and convenient.

Although not shown, the bottom 24 of the container body 14 extends from one side of the side wall in the longitudinal direction of the side peripheral wall 22 of the container body 14 toward the side wall in the longitudinal direction of the other side of the side peripheral wall 22 of the container body 14. It may be formed in a tapered shape or a dome shape inclined so as to protrude downward.
(Example 5)

  FIG. 14 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 14 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown.

  The volume reduction container 10 of this embodiment has basically the same structure as the volume reduction container 10 of the embodiment shown in FIGS. 1 to 6, and the same reference numerals are given to the same components. Therefore, the detailed description is omitted.

  In the reduced volume container 10 of this embodiment, as shown in FIGS. 14A to 14B, the bottom portion 24 of the container main body 14 is formed in a tapered shape or a dome shape 21a protruding upward. It is done.

  That is, in this embodiment, as shown in FIGS. 14 (A) to 14 (B), a tapered shape is provided protruding toward the upper center from the side wall 22a of the side peripheral wall 22 of the container body 14 in the short direction. Or, it is formed in dome shape 21a.

  With this configuration, the bottom portion 24 of the container body 14 is formed in a tapered shape or a dome shape 21a protruding upward, and accordingly, the content of the storage portion 12 of the container body 14 is The content can be further reduced.

  With this configuration, the side wall 22a in the lateral direction of the side peripheral wall 22 of the container main body 14 is provided with the extending foot portion 26 extending downward from the bottom portion 24 of the container main body 14. It is also self-sustainable and convenient.

Although not shown, the bottom portion 24 of the container body 14 may be formed in a tapered shape or a dome shape protruding toward the upper center from the side wall in the longitudinal direction of the side peripheral wall 22 of the container body 14.
(Example 6)

  FIG. 15 (A) is a cross-sectional view similar to FIG. 2 (A) showing another embodiment of the volume reduction container of the present invention, and FIG. 15 (B) is another embodiment of the volume reduction container of the present invention. It is sectional drawing similar to FIG. 2 (B) shown.

  The volume reduction container 10 of this embodiment has basically the same structure as the volume reduction container 10 of the embodiment shown in FIGS. 1 to 6, and the same reference numerals are given to the same components. Therefore, the detailed description is omitted.

  In the reduced volume container 10 of this embodiment, as shown in FIGS. 15 (A) to 15 (B), the bottom 24 of the container body 14 is the side wall 22a of the side peripheral wall 22a of the side peripheral wall 22 of the container body 14. The bellows shape 23 is formed from one side toward the side wall 22 a in the short direction of the other side of the side peripheral wall 22 of the container body 14.

  By this configuration, the bottom 24 formed in the bellows shape 23 is deformed and moved upward by pushing the bottom 24 formed in the bellows shape 23 from the lower side with a finger or the like, for example. Therefore, it is easy and convenient to push out (discharge) the content stored in the storage portion 12 of the container main body 14 from the container main body 14.

  Although not shown, the bellows shape 23 is formed from one side of the side wall 22b in the longitudinal direction of the side peripheral wall 22 of the container body 14 toward the side wall 22b in the longitudinal direction of the other side of the side peripheral wall 22 of the container body 14 A bottom 24 is also possible.

  In addition, in the volume-reduction container 10 of FIGS. 12-15, since the bottom part 24 is a shape which is easy to deform inward, when using it in an eye drop container, pinch the extended leg part 26 with a finger etc. By “squeeze”), the content stored in the storage portion 12 of the container main body 14 is excellent by the effect of discharging the content.

  As mentioned above, although the preferable embodiment of this invention has been described, this invention is not limited to this, For example, containers, such as pharmaceutical containers, such as an eye drop container, a nasal drop container, an application container, etc. In the container in the container, for example, to reduce the internal volume of the content consisting of solid matter such as liquid matter, fluid matter, semi-fluid matter, solid body, powder body, etc. Although the container has been described, the present invention can be applied to other containers such as the food field, the industrial field, and the like, which are desired to be reduced.

  Moreover, although the said Example demonstrated the method to manufacture using a vertical installation type | mold, manufacturing using a so-called "horizontal installation type | mold" mold is also referred to as so-called "multiple unit taking" Various modifications are possible without departing from the object of the present invention, for example, it is possible to obtain a plurality of reduced volume containers 10 at one time using a mold to be called.

  The present invention relates to a container such as a medicine container such as an eye drop container, a nasal container, and an application container, which is contained in a container in the container, for example, liquid substance, liquid substance, semi-liquid substance, solid substance, powder The present invention can be applied to a reduction container for reducing the content of contents made of solids such as granules and a method for manufacturing the reduction container.

26a to 26d Extension foot portion 72a to 72d Reinforcing rib 10 Reduced volume container 12 Storage portion 12 Container body 12 Storage portion 14 Container body 16 Shoulder 18 Male thread 20 Opening 21a Tapered or dome shape 22 Side peripheral wall 22a Side wall 22 b Side wall 23 Bellows shape 24 Bottom portion 24 a Tapered shape or dome shape 24 c Tapered shape or dome shape 26 Extended foot portion 26 a-26 d Extended foot portion 28 Notched portion 30 Injection molding mold 31 Recessed portion 32 Left mold 34 Right mold 36 Recess 38 Lower mold 38a Gate 40 Protrusive part 42 Upper mold 43 Screw mold 44a Main body space 44b Extended foot space 46 Parison 48 Housing formation part 50 Main body 52 Side peripheral wall 54 Bottom 56 extension foot 60 blow molding die 62 left die 64 right die 62a, 64a blow gap 62b, 64b lower portion 6 Upper mold 67 Screw mold 68 Recess 70 Lower rib 72 Reinforcing rib 72a-72d Reinforcement rib 72e Reinforcement rib 100 Injection-integrally formed container 102 Housing 104 Container body 106 Male thread 108 Port 110 Side wall 112 Flange 114 Extension foot 116 gate position

Claims (1)

It is a volume reduction container in which the internal volume of the container is reduced,
A container main body in which a storage portion for storing contents is formed;
An extending foot portion in which the side peripheral wall of the container body extends downward from the bottom of the container body;
A method of manufacturing a reduced volume container comprising
Using a mold for injection molding
A main body portion provided with a storage portion forming portion to be the container main body;
An extending foot portion which is expanded in diameter from the side peripheral wall of the main body portion and which extends downward from the bottom portion of the main body portion;
Injection molding process to form a parison with
Using a blow mold
A blow molding step of blowing air from the opening of the main body of the parison obtained by the injection molding, and expanding the side peripheral wall of the main body to form a container main body;
A method of manufacturing a reduced volume container comprising:

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