JP4232090B2 - Cap structure with dripping function, plug body with the structure, one-touch cap with the structure, and container with the structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container with a dropping function, and more particularly, to a container with a dropping function that can easily drop a desired amount, reliably drop a desired amount, and can be easily mass-produced.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a tube container with a dropping function that drops and extracts contents stored in a tube container little by little. When dropping eye drops or the like, the material of the bottle container itself is hardened, and the contents such as eye drops are dropped using the rigidity. However, in the case of a tube container, in consideration of the squeeze property of the tube container, a soft material is usually used, so that there is a drawback that a large amount of contents are extracted at a time when pressed by hand. Conventionally, a tube container with a dropping function as disclosed in JP-A-2002-39409 has been disclosed. FIG. 16 shows a conventional tube container with a dripping function, and a plug body 200 is fitted into the mouth portion 202 of the tube container 201. This tube container 201 is a single layer tube container or a multilayer tube container manufactured by an injection molding or blow molding method which is a known manufacturing method. The stopper body 200 has a nozzle 204 formed on the upper side thereof, and a spherical body storage portion 205 having an enlarged inner diameter is formed continuously to the passage 204a of the nozzle 204. The inner diameter dimension of the spherical body storage portion 205 is configured to be slightly larger than the diameter of the spherical body 206. The spherical body 206 is divided into 3 to 4 equal parts on the entire circumference at positions where the spherical body storage part 205 can move up and down, and a ball stop part 207 is formed to bulge radially inward. A sphere insertion port 208 is formed below the ball stop 207. The inner diameter of the sphere insertion port 208 is configured to be slightly larger than the diameter of the sphere 206 so that the sphere 206 can be inserted. The ball 208 is forcibly inserted from the entrance 208 and the ball stopper 207. Further, at least one vertical groove 209 is formed on the inner peripheral surface of the spherical body storage portion 205. The width, depth, length, and number of the longitudinal grooves 209 are appropriately determined depending on the viscosity of the contents, the amount of the contents that are extracted at a time, and the like.
[0003]
[Problems to be solved by the invention]
However, such conventional tube containers have the following drawbacks. Since the sphere 206 moves up and down in the sphere storage unit 205 as shown in FIG. 16, the content flows before the sphere 206, so that a film of the content is formed between the sphere 206 and the sphere storage unit 205. For this reason, the sphere 206 is not in close contact with the inner peripheral surface of the sphere storage portion 205, and there is a drawback that more contents than necessary flow out.
[0004]
The present invention has been made paying attention to such a conventional problem, and provides a container with a dropping function that can drop a desired amount in a stable and stable manner, and can be easily mass-produced. The purpose is to do.
[0005]
[Means for Solving the Problems]
In order to solve this problem, the stopper structure with a dripping function according to claim 1 is a stopper structure provided at the mouth of the container, and the upper end communicates with a passage that communicates with the outside at the top, and the lower end of the passage, A spherical housing portion having an inner diameter larger than that of the passage, a synthetic resin spherical body that is inserted into the spherical housing portion and has an upper portion in close contact with the inner peripheral surface thereof, supports the spherical surface upward, and does not move up and down. And at least one piece that communicates the upper and lower parts of the sphere with the inner peripheral surface in contact with the part of the inner peripheral surface with which the sphere of the sphere storage unit contacts. It is characterized in that a vertical groove is formed.
[0006]
The stopper structure with a dripping function according to claim 2 is a stopper structure provided at the mouth of the container, wherein the upper portion communicates with the passage at the top and the lower end of the passage, and the inner diameter is larger than the passage. A sphere storage portion, a synthetic resin sphere inserted into the sphere storage portion and having an upper portion closely attached to the inner peripheral surface thereof, and a ball stop for supporting the sphere upward and locking it so as not to move up and down. And a part of the inner surface of the sphere storage part or a part of the surface of the sphere is subjected to embossing so that the upper part and the lower part of the sphere communicate with each other with the contacted part as a boundary. Yes.
[0007]
The stopper structure with a dropping function according to claim 3 is a stopper structure with a dropping function corresponding to claim 1, wherein a narrow portion having an inner diameter smaller than the passage is formed below the passage. .
Also, dropping function plug structure of claim 4, wherein is a dropping function plug structure corresponding to claim 1, wherein the spherical body accommodating portion has a portion of diameter by Redirecting a hearing inner diameter of the sphere, the The inner diameter dimension decreases toward the upper side and reaches the lower end of the passage.
Furthermore, the stopper structure with a dropping function according to claim 5 is a stopper structure with a dropping function corresponding to claim 1, wherein a nozzle part having a passage is formed above the spherical body storage part. .
[0008]
The stopper structure with a dropping function according to claim 6 is any one of the stopper structures with a dropping function described above , wherein a coating portion having the passage is formed above the spherical body storage portion , and the coating portion. Has a top surface to which the contents can be applied, and the passage communicates with the top surface to the outside .
[0009]
Dropping function plug body according to claim 7 is characterized by comprising a plug body to be fitted to the mouth portion of the container, one of the dropping function plug structure as described above in the interior of the plug body It is said.
[0010]
The one-touch cap with a dropping function according to claim 8 has a cap body that is screwed or engaged with a mouth portion of a container, and a lid body that is provided on the cap body so as to be freely opened and closed via a hinge. It is characterized by comprising any one of the dropping function plug structure as described above in the interior of the.
[0011]
According to a ninth aspect of the present invention, there is provided a tube container with a dropping function, comprising the above-described stopper structure with a dropping function. An aerosol container with a dropping function according to a tenth aspect is characterized by including the above-described stopper structure with a dropping function. Furthermore, the bottle container with a dropping function according to claim 11 is characterized by including the above-described stopper structure with a dropping function.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a tube container with a dropping function according to the present invention, and is a drawing showing a first embodiment according to the present invention. In FIG. 1, the plug body 2 is fitted into the mouth 3 of the tube container 1. The tube container 1 is a single-layer resin tube container, a multilayer resin tube container, or a laminate tube container manufactured by a conventionally known method such as injection molding or blow molding. The stopper body 2 has a nozzle portion 4 formed above, and a passage 4 a is formed in the nozzle portion 4. The height dimension of the passage 4a of the nozzle part may be 1 mm or more, preferably 4 to 5 mm. A narrow portion 4b is formed below the passage 4a, and a spherical body storage portion 5 having an enlarged inner diameter is continuous from the narrow portion 4b. The inner diameter dimension of the spherical body storage portion 5 is configured to be slightly larger than the diameter of the spherical body 6. Next, a ball stop 7 having an inner diameter slightly smaller than the diameter of the sphere 6 is formed below the sphere 6 so as to bulge inward in the radial direction. The ball 6 is supported by the ball stopping portion 7, and the ball 6 is fixed in the ball housing portion 5 without moving up and down. Further, a sphere insertion port 8 is formed below the ball stopper 7, and the inner diameter of the sphere insertion port 8 is configured to be slightly larger than the diameter of the sphere 6 so that the sphere 6 can be forcibly inserted. The sphere 6 is polished on the surface of the sphere 6 after molding, and is processed within a sphericity of 7 μm and a tolerance of ± 0.05 mm.
[0013]
At least one longitudinal groove 9 is formed on the inner peripheral surface of the spherical body storage portion 5. About the width | variety of the vertical groove 9, the vertical groove depth, and a number, it can determine suitably by the viscosity of a content, the dripping amount of the content extracted at once, etc. For example, in the case of the vertical groove 9 having a width of 0.4 mm, a depth of 0.07 mm, and a length of 1.2 mm, the content of the single vertical groove 9 has the same viscosity as water. Two contents are suitable for contents having a viscosity comparable to mayonnaise, and three contents are suitable for contents having a higher viscosity. In addition, as shown in FIG. 9, it may replace with the vertical groove 9 and the embossing 9a may be given to the internal peripheral surface of the spherical body accommodating part 5. As shown in FIG. The depth (H shown in FIG. 11) of the embossing 9a can be determined as appropriate depending on the viscosity of the contents, the amount of the contents to be extracted at one time, and the like. When the depth is low, the maximum depth H is about 14 μm, and when the content has a high viscosity, about H = 80 μm can be suitably determined. Furthermore, as shown in FIG. 10, the surface of the sphere 6 may be subjected to a graining process 6a. The depth (H shown in FIG. 11) of the embossing 6a formed on the surface of the sphere 6 is approximately the same as the embossing depth applied to the surface of the sphere storage portion 5.
[0014]
FIG. 3 is a view showing a second embodiment in which a spherical body storage portion 15 is integrally formed with the mouth portion 13 of the tube container 11. The difference from the first embodiment is that there is no plug body. Other configurations such as the sphere 16, the ball stopping portion 17, the sphere storage portion 15, the longitudinal groove portion 19 and the nozzle portion 14, the passage 14a and the narrow portion 4b are the same as those in the first embodiment.
[0015]
FIG. 4 is a cross-sectional view showing the third embodiment. In FIG. 4, the plug body 12 is fitted in the mouth portion 13 of the tube container 11. In the third embodiment, an application part 12a is formed above the plug body 12, and a passage 14a and a narrow part 14b are formed in the application part 12a. The tube container 11 is a single-layer tube container or a multi-layer tube container manufactured by a known manufacturing method such as injection molding or blow molding. It is characterized in that contents such as medicine can be applied to the affected area by the application part 12a on the top surface. Other configurations, such as the spherical body storage portion 15, the spherical body 16, the ball stop portion 17, and the longitudinal groove portion 19, are the same as those in the other embodiments.
[0016]
FIG. 5 is a sectional view showing the fourth embodiment. In the fourth embodiment, a spherical body storage portion 25 is formed integrally with the mouth portion 23 of the tube container 21. The fourth embodiment is the same as the third embodiment in that the coating part 22 is formed at the tip of the mouth part 23, and is different from the other embodiments in that a plug body and a nozzle part are provided. It is not done. Other configurations, such as the spherical body storage portion 25, the spherical body 26, the ball stop portion 27, the longitudinal groove portion 29, the passage 24a, and the narrow portion 24b, are the same as in the other embodiments.
[0017]
FIG. 6 is a sectional view showing a fifth embodiment. The fifth embodiment is an embodiment in the case where the tube container with a dropping function according to the present invention is a tube container having a one-touch cap. That is, as shown in FIG. 6, the one-touch cap 90 is a one-touch cap 90 in which a cap main body 94 and a lid 92 can be opened and closed via a hinge 91. A spherical body storage portion 35 is formed at the center of the cap body 94 of the one-touch cap 90, and the spherical body storage portion 35 is screwed or fitted into the mouth portion 33 of the tube container 31. Similarly, the sphere 36 is inserted into the sphere storage portion 35 and fixed by a ball stop portion 37 so as not to move up and down in the sphere storage portion 35. Other configurations of the nozzle portion 34, the passage 34a and the narrow portion 34b, the groove portion 39, and the like are the same as those in the first and second embodiments. A protrusion 93 formed at the center of the lid 92 is detachably engaged with the tip of the passage 34a of the nozzle portion 34.
[0018]
Next, FIG. 7 is a sectional view showing a sixth embodiment. The sixth embodiment is an embodiment in which the tube container with a dropping function according to the present invention is a tube container having a one-touch cap. As shown in FIG. 7, a cap body 95 and a lid body 98 are a one-touch cap 95 that can be opened and closed via a hinge 96. A sphere storage part 55 is formed at the center of the cap body 98 of the one-touch cap 95, and an application part 52 is formed at the tip of the sphere storage part 55, and the sphere storage part 55 is connected to the tube container 51. The opening 53 is screwed or fitted. Similarly, the sphere 56 is fixed by a ball stop portion 57 so as not to move up and down in the sphere storage portion 55. In addition, the configuration of the longitudinal groove portion 59, the passage 54a, the narrow portion 54b, and the like is the same as that of the other embodiments.
[0019]
12 to 15 show the seventh, eighth, and ninth embodiments of the container with a dropping function according to the present invention, and press the valves 102, 112, 122 of the aerosol containers 101, 111, 121 respectively. It is drawing which showed embodiment which the bodies 103, 113, and 123 were connected. In the pressing bodies 103, 113, 123, spheres 103b, 113b, 123b are respectively fixed as in the other embodiments. Longitudinal grooves are also formed. And as shown in FIG. 13, each aerosol container 101, by pressing the pressing parts 103a, 113a, 123a of the pressing bodies 103, 113, 123 in the container direction (the arrow direction in FIG. 12) with a finger. The valves 102, 112, 122 of 111, 121 can be opened, and the contents 105, 115, 125 can be taken out to the outside. 12 and 13, an inner cylinder 104 is provided in the aerosol container 101, and the bottom of the inner cylinder 104 is brought into contact with the inner surface of the bottom of the aerosol container 101. Further, FIG. 14 is applied to an aerosol container 111 having a curled portion in which the contents 115 and a propellant are mixed and filled. Furthermore, FIG. 15 is applied to the double aerosol container which shows the state which suspended the inner cylinder 124 in the aerosol container 121 which has a curl part. And these press bodies 103, 113, and 123 are covered with caps 108, 118, and 128, respectively. In addition, it cannot be overemphasized that the container with a dripping function which concerns on this invention is applicable to bottle containers made from resin.
[0020]
Next, the operation of the present invention will be described. The sphere is forcibly inserted from the sphere insertion port, and is further forcibly inserted from the ball stop portion into the sphere storage portion. As shown in the figure, the sphere does not move up and down because it is completely fixed by the ball stopper in the sphere storage portion or the pressing body. Therefore, as shown in FIG. 2, when extracting the contents by pressing the body portion of the tube container, it is possible to prevent the contents from flowing before the sphere, and between the sphere and the sphere storage portion or the pressing body. It is possible to prevent the formation of a content film between them. The spherical body and the spherical body storage unit or the pressing body are always in close contact with each other, and it is possible to prevent the unnecessary contents from flowing out. Then, the content passes through the longitudinal groove and the narrow portion, so that a constant amount of the content is always supplied to the outside in a crisp and stable manner. Further, since the sphere is subjected to polishing after molding, the dimensional tolerance and sphericity are high. Therefore, the fitting state of the sphere and the plug body is good, the content extraction amount and the extraction speed are stabilized, and the dropping amount is also stable.
[0021]
Furthermore, since the sphere has no directionality, it has good workability in the mass production process. And since the height dimension of the channel | path of a nozzle part or an application | coating part is set to 4-5 mm, the content which passed the vertical groove once accumulates in the inside of a channel | path after that. This accumulation of contents promotes the dropping function. And the drop amount of one drop can be adjusted by determining the height dimension of a channel | path. And the contents in a container can be dripped effectively. The container with a dripping function according to the present invention can be applied as a tube container or an aerosol container, and the contents to be filled include drugs such as eye drops, bad breath prevention drugs, athlete's foot drugs, skin drugs, and other foods such as oils and creams. It can be filled with an adhesive or the like.
[0022]
【The invention's effect】
As described above, according to the present invention, the tube container has an effect that the contents can be cut smoothly and stably and reliably in a desired amount. In addition, there is an effect that mass production is easy.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first embodiment of a tube container with a dropping function according to the present invention.
FIG. 2 is a partially cutaway cross-sectional view showing a state in which the tube container with a dropping function according to the first embodiment of the present invention is being pressed.
FIG. 3 is a sectional view showing a second embodiment of a tube container with a dropping function according to the present invention.
FIG. 4 is a cross-sectional view showing a third embodiment of a tube container with a dropping function according to the present invention.
FIG. 5 is a sectional view showing a fourth embodiment of a tube container with a dropping function according to the present invention.
FIG. 6 is a sectional view showing a fifth embodiment of the tube container with a dropping function according to the present invention.
FIG. 7 is a sectional view showing a sixth embodiment of a tube container with a dropping function according to the present invention.
FIG. 8 is an enlarged cross-sectional view showing a state in which contents pass through a longitudinal groove in the tube container with a dropping function according to the present invention.
FIG. 9 is an enlarged cross-sectional view showing a state in which the contents pass through a portion that has been subjected to embossing in the spherical body storage portion in the tube container with a dropping function according to the present invention.
FIG. 10 is an enlarged cross-sectional view showing a state in which the contents pass through a portion that has been subjected to graining on the surface of a sphere in the tube container with a dropping function according to the present invention.
FIG. 11 is an enlarged cross-sectional view showing the depth H of the embossing in the tube container with a dropping function according to the present invention.
FIG. 12 is a cross-sectional view showing a seventh embodiment of the aerosol container with a dropping function according to the present invention, in which a pressing body with a spherical body is connected to a valve of the aerosol container and the contents are put out sideways. .
FIG. 13 is a cross-sectional view showing a seventh embodiment of the aerosol container with a dropping function according to the present invention in a state in which a pressing body with a spherical body is connected to a valve of the aerosol container.
FIG. 14 is a cross-sectional view showing an eighth embodiment of the aerosol container with a dropping function according to the present invention in a state in which a pressing body with a spherical body is connected to a valve of an aerosol container having a curl portion.
FIG. 15 is a cross-sectional view showing a ninth embodiment of the aerosol container with a dropping function according to the present invention, in which a pressing body with a spherical body is connected to a valve of a double aerosol container having a curled portion.
FIG. 16 is a sectional view showing a stopper body of a tube container with a dropping function in which a conventional sphere moves up and down.
[Explanation of symbols]
1 11 21 31 51 Tube container 2 12 Plug body 3 13 23 33 53 Mouth part 4 14 109 119 129 Nozzle part 4a 14a 24a 34a 54a Passage 4b 14b 24b 34b 54b Narrow part 5 15 25 35 55 55 Sphere storage part 6 1626 56 Sphere 7 17 27 37 57 Ball stop 90 95 One-touch cap

Claims (11)

A stopper structure provided at the mouth of the container,
A passage leading to the outside at the top,
And its lower end of the passage communicating with the upper end, and an inside diameter than said passage is large spherical housing section,
A synthetic resin sphere that is inserted into the sphere storage portion and has an upper portion in close contact with the inner peripheral surface thereof;
A ball stop portion that supports the sphere upward and locks it so as not to move up and down,
A stopper with a dripping function, in which at least one longitudinal groove is formed in a part of the inner peripheral surface of the sphere storage portion with which the sphere contacts, and the upper and lower portions of the sphere communicate with each other with the contacting inner peripheral surface as a boundary. Construction. A stopper structure provided at the mouth of the container,
A passage leading to the outside at the top,
And its lower end of the passage communicating with the upper end, and an inside diameter than said passage is large spherical housing section,
A synthetic resin sphere that is inserted into the sphere storage portion and has an upper portion in close contact with the inner peripheral surface thereof;
A ball stop portion that supports the sphere upward and locks it so as not to move up and down,
A stopper structure with a dripping function, which has been subjected to an embossing process so that the upper part and the lower part of the sphere communicate with each other on the inner peripheral surface of the sphere storage part or a part of the surface of the sphere.   The stopper structure with a dropping function according to claim 1 or 2, wherein a narrow portion having an inner diameter smaller than the passage is formed below the passage. The spherical body accommodating portion has a portion of diameter by Redirecting a hearing inner diameter of the sphere,
The stopper structure with a drip function according to claim 1 , 2 or 3, wherein the inner diameter dimension decreases toward the upper side and reaches the lower end of the passage.   The stopper structure according to claim 1, wherein a nozzle part having the passage is formed above the spherical body storage part. An application part having the passage is formed above the spherical body storage part , the application part has a top surface to which the contents can be applied, and the passage leads to the outside at the top surface. The stopper structure according to 1, 2, 3 or 4. A stopper body with a dropping function , which has a stopper body fitted to the mouth of the container, and has the stopper structure according to any one of claims 1 to 6 inside the stopper body. A cap main body that is screwed or engaged with a mouth portion of the container, and a lid body that is provided on the cap main body so as to be freely opened and closed via a hinge. The cap according to any one of claims 1 to 6. One-touch cap with a stopper structure.   The tube container provided with the stopper structure in any one of Claims 1-6.   The aerosol container provided with the stopper structure in any one of Claims 1-6.   The bottle container provided with the stopper structure in any one of Claims 1-6.

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