JP6059883B2 - Resin ampoule - Google Patents

Description

  The present invention relates to a resin ampoule.

  As a resin ampoule that contains the contents of drinking water, medicines, fertilizers, etc., the container body containing the contents and the mouth part of the container body are connected to each other through a breakable weakening part to close the mouth part. The structure provided with the head which performs is known (for example, refer the following patent document 1). In this type of resin ampoule, when taking out the contents, the weakened part is broken by, for example, pushing the head down while holding the container body, and after opening the mouth part of the container body, the contents are removed from the mouth part. It comes to take out.

JP 2009-154950 A

However, in the above-described resin ampule, when the head is turned up and the container main body is faced down, the contents stored in the container main body are placed on the mouth side when, for example, the sideways posture or the inverted posture is changed. It is biased and stored. In this case, even if the resin ampoule is returned to the upright posture, the contents stored on the mouth side are difficult to return to the original state due to the surface tension.
In this state, if the weakened portion is broken and the resin ampoule is opened, the contents stored on the mouth side may be scattered outside.

  The present invention has been made in view of such circumstances, and a resin ampoule that can prevent the contents from being stored on the mouth side and can prevent the contents from scattering to the outside when opened. It is intended to provide.

In order to solve the above problems, the present invention proposes the following means.
The resin ampoule according to the present invention includes a bottomed cylindrical container body that contains contents, and a head part that is connected to the mouth part of the container body via a weakened breakable part to close the mouth part. A part or a plurality of portions in the circumferential direction of the connection portion between the mouth portion and the body portion of the container main body, and a bulge that bulges into the container main body. A portion is formed , and at least a portion of the container body extending from the mouth portion through the bulging portion to the body portion is provided with a rib projecting into the container body. It is said.

Due to these features, a bulge is formed at the connection between the mouth and the body, so that the resin ampoule lies sideways and upside down, and the contents are stored biased toward the mouth. After that, when the resin ampoule is returned to the upright posture, it is possible to destabilize the mechanical balance acting on the contents located at the connection portion between the mouth portion and the trunk portion. Thereby, for example, the surface tension generated in the contents located at the connection portion between the mouth portion and the trunk portion can be reduced.
Therefore, even if the resin ampoule is placed on the side of the mouth when the resin ampoule is placed on its side or in an inverted position, etc., the container body is restored when the content returns the resin ampoule to the upright position. It will flow toward the side. Thereby, it can suppress that the contents are stored by the mouth side.
Also, after the resin ampoule is placed on its side or in an inverted position, for example, and the contents are biased and stored on the mouth side, the resin ampoule is returned to the upright position and connected to the connection part between the mouth and the body. When the positioned contents move toward the container body, the contents easily flow down along the ribs into the container body. Therefore, it can suppress reliably that the contents are stored by the mouth side.

  Moreover, the part located in the said bulging part among the outer surfaces of the said container main body may be dented toward the said container main body according to the inner surface shape of the said bulging part.

  In this case, since the portion of the outer surface of the container body located at the bulging portion is recessed following the inner surface of the bulging portion, the wall thickness of the bulging portion is different from the case where only the inner surface is bulged. It can be formed in the same manner as other parts of the container body. Thereby, while forming becomes easy, the increase in the material cost accompanying formation of a bulging part can be suppressed.

  Further, the head may be formed in a hollow opening in the mouth.

  In this case, even if the contents are stored on the head side, the contents are prevented from flowing out to the outside at the time of opening, and a remarkable effect is obtained.

In this case, for example, after the resin ampoule is placed on its side or in an inverted posture and the contents are biased and stored on the mouth side, the resin ampoule is returned to the upright position, and the connection portion between the mouth and the body portion When the content located at the side of the container moves toward the container body side, the content easily flows down along the ribs into the container body. Therefore, it can suppress reliably that the contents are stored by the mouth side.
Moreover, the opening surface opened to the trunk | drum side among the said mouth parts may be extended in the direction which cross | intersects the container axial direction of the said container main body by the said bulging part.

  According to the resin ampule according to the present invention, it is possible to suppress the contents from being stored on the mouth side, and to prevent the contents from being scattered to the outside at the time of opening.

(A) is a top view of the resin-made ampule which concerns on embodiment of this invention, (b) is a side view. It is a fragmentary sectional view of the resin ampoule shown in FIG. (A) is a top view of the resin ampoule which concerns on other embodiment of this invention, (b) is a side view. It is a fragmentary sectional view of the resin ampoule shown in FIG. (A) is a top view of the resin ampoule which concerns on other embodiment of this invention, (b) is a side view. It is a fragmentary sectional view of the resin ampoule shown in FIG. (A) is a top view of the resin ampoule which concerns on other embodiment of this invention, (b) is a side view. It is a fragmentary sectional view of the resin ampoule shown in FIG. It is sectional drawing of the resin ampoule which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the resin ampule 1 in the present embodiment closes a bottomed cylindrical container body 11 that contains contents such as drinking water, medicine, and fertilizer, and a mouth 21 of the container body 11. And a head portion 12 having a cylindrical shape. The resin ampule 1 of the present embodiment is formed by blow molding a preform formed integrally with a synthetic resin material and formed into a bottomed cylindrical shape by injection molding.

  As for the container main body 11 and the head 12, each central axis is located on a common axis. Hereinafter, this common axis is referred to as the container axis O, the head 12 side along the container axis O direction is referred to as the upper side, and the container body 11 side along the container axis O direction is referred to as the lower side. Furthermore, a direction orthogonal to the container axis O is referred to as a radial direction, and a direction that goes around the container axis O is referred to as a circumferential direction.

The container main body 11 includes a mouth portion 21, a shoulder portion 22, a trunk portion 23, and a bottom portion 24, and has a schematic configuration in which these 21 to 24 are connected in this order from the top to the bottom.
The trunk | drum 23 is formed in the cylindrical shape extended along the container axis | shaft O, and the bottom part 24 is continuously provided so that the lower end opening part may be obstruct | occluded.
The shoulder portion 22 is gradually reduced in diameter from the upper end opening edge of the body portion 23 toward the upper side.
The mouth portion 21 has a cylindrical shape erected upward from the inner peripheral edge of the shoulder portion 22 and communicates with the body portion 23. Further, a neck ring 25 that protrudes outward in the radial direction is formed on the upper end of the mouth portion 21 over the entire circumference in the circumferential direction.

  The head 12 is hollow with the lower end opened, and is connected to the upper end opening edge of the mouth portion 21 via the weakened portion 27 so as to be ruptured. The weakening part 27 is formed weaker (thin wall) than the other part between the upper end opening edge of the mouth part 21 and the lower end opening edge of the head part 12, and the container body 11 and the head part 12 are relatively It is broken by bending and displacing.

  The outer diameter of the lower end of the head 12 gradually increases as it goes downward. The head 12 is formed in a cylindrical shape that opens in the container axis O direction immediately after molding, and the resin ampoule 1 is filled with the contents through the upper end opening. Then, after filling the contents, the upper end opening of the head 12 is heated to close the head 12. The head 12 is not limited to being hollow and may be formed solid.

  Here, a bulging portion 31 that bulges toward the inside of the container body 11 is formed at a connection portion between the mouth portion 21 and the trunk portion 23, specifically, a part of the shoulder portion 22 in the circumferential direction. The inner surface of the bulging portion 31 of the present embodiment bulges downward with respect to the inner surface of the shoulder portion 22 and is formed as an inclined surface that is inclined with respect to both the container axis O direction and the radial direction. . Moreover, the outer surface located in the bulging part 31 among the connection parts of the mouth part 21 and the trunk | drum 23 is formed in the inclined surface which inclines according to an inner surface, Thereby, the wall thickness of the bulging part 31 is formed. The thickness of the other part of the container body 11 (for example, the body part 23) is the same.

As shown in FIG. 1A, the bulging portion 31 has a long oval shape in the radial direction when the resin ampule 1 is viewed from above, and the container shaft O is located on one end side in the longitudinal direction. ing. Moreover, the bulging part 31 is extended toward the downward direction gradually as it goes to the other end part side from the one end part side of the longitudinal direction. In accordance with this, as shown in FIG. 2, the lower end opening edge of the mouth portion 21 is also inclined.
As shown in FIGS. 1 and 2, the bulging portion 31 has the other end in the longitudinal direction opened to the outside in the radial direction and opened to both sides in the circumferential direction.

  When using the resin ampoule 1 described above, the container body 11 is gripped and, for example, the head 12 is pushed down with the head 12 facing upward and the container body 11 facing downward. Then, the weakened portion 27 is broken and the head 12 is separated from the container main body 11. Thereby, the mouth part 21 is opened and the contents in the container body 11 can be taken out.

Here, in the resin ampoule 1 of the present embodiment, since the bulging portion 31 is formed at the connection portion between the mouth part 21 and the body part 23, the resin ampoule 1 is laid sideways or in an inverted posture or the like. After the contents are biased and stored on the mouth portion 21 side, the dynamics acting on the contents located at the connection portion between the mouth portion 21 and the body portion 23 when the resin ampoule 1 is returned to the upright posture. It becomes possible to make the balance unsteady. Thereby, for example, surface tension generated in the contents located at the connection portion between the mouth portion 21 and the body portion 23 can be reduced.
Therefore, when the resin ampoule 1 returns to the upright posture even if the contents are biased and stored in the mouth portion 21 side when the resin ampoule 1 is in a sideways posture or an inverted posture, for example. Will flow toward the container body 11 side. Thereby, since it can suppress that a content is stored by the mouth part 21 side, it can suppress that a content disperses outside at the time of opening.

  In addition, in the longitudinal sectional view along the container axis O direction, the angle θ formed by the inner surface of the bulging portion 31 and the radial direction is preferably 45 ° or more (45 ° ≦ θ). By setting the angle θ in this way, the surface tension generated in the contents located at the connection portion between the mouth portion 21 and the body portion 23 can be effectively reduced, and the retention of the contents on the mouth portion 21 side is ensured. Can be suppressed. Specifically, the inventor of the present application conducted a test for confirming the remaining liquid on the mouth portion 21 side with a sample in which the angle θ of the bulging portion 31 was set to 45 ° and 60 °. As a result, in both samples, a good result was obtained in which the contents did not remain on the mouth portion 21 side and all flowed toward the container body 11 side.

Moreover, since the part located in the bulging part 31 among the outer surfaces of the container main body 11 of this embodiment is recessed following the inner surface of the bulging part 31, unlike the case where only the inner surface is bulged, the bulging part The thickness of 31 can be formed equivalent to that of the body portion 23. Thereby, shaping | molding becomes easy and the increase in the material cost accompanying formation of the bulging part 31 can be suppressed.
Furthermore, when the head 12 is formed in a hollow opening in the mouth 21, even if contents are stored on the head 12 side, the contents are prevented from flowing out when opened. And a remarkable effect is obtained.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

For example, the position, shape, number, etc., of the bulging portions 31 can be appropriately changed.
For example, in the resin ampule 100 shown in FIGS. 3 and 4, the bulging portions 31 are formed separately on both sides of the container shaft O in the radial direction when viewed from the top. In accordance with this, the connecting portion between the mouth portion 21 and the body portion 23 is tapered toward the top in the longitudinal sectional view of the resin ampule 100 along the longitudinal direction of the bulging portion 31 as shown in FIG. It is formed in a tapered shape.

  Moreover, although the other end part of the longitudinal direction is open | released on the outer side of radial direction, and it is open | released on the both sides of the circumferential direction, the bulging part 31 shown in FIGS. 1-4 mentioned above is not restricted to this. . For example, in the resin ampoule 200 shown in FIGS. 5 and 6, a bulge that is open only on the outer side and the upper side in the radial direction in a part of the circumferential direction in the connection portion between the mouth portion 21 and the body portion 23. A portion 231 is formed. The bulging portion 231 is disposed at a position away from the container axis O in the radial direction, and extends downward toward the outer side in the radial direction. Further, both sides in the circumferential direction of the bulging portion 231 are surrounded by a connecting wall 232 that connects the shoulder portion 22 and the bulging portion 231.

  According to this configuration, in addition to the same effects as the above-described embodiment, a label (not shown) such as a shrink label is wound around the trunk portion 23 of the resin ampoule 200 so as to cover the bulging portion 231. Even if it exists, it can suppress that wrinkles generate | occur | produce on a label. Note that, as in the resin ampule 300 shown in FIGS. 7 and 8, a plurality of the above-described bulging portions 231 may be formed at intervals in the circumferential direction.

Furthermore, in the above-described embodiment, the description has been given of the case where the portion located in the bulging portion of the outer surface of the container main body 11 is recessed toward the inside of the container main body 11 following the shape of the inner surface of the bulging portion. Not only this but the inner surface of the connection part of the mouth part 21 and the trunk | drum 23 may bulge toward the inside of the container main body 11, and a bulging part may be formed.
According to this configuration, since the bulging portion can be formed without changing the outer surface shape of the container main body 11, even when the wrapping portion is wound so as to cover the bulging portion, generation of wrinkles on the label can be reliably suppressed. .

  Moreover, you may form the rib 401 which protrudes in the container main body 11 like the resin-made ampule 400 shown in FIG. The rib 401 extends along the container axis O direction through the bulging portion 31 on the inner surface of the container body 11, and is formed from the mouth portion 21 to the bottom portion 24. Therefore, a portion of the rib 401 that is located at the mouth portion 21 and the body portion 23 protrudes inward in the radial direction, and a portion that is located at the bottom portion 24 protrudes upward.

  According to this configuration, when the resin ampoule 1 is returned to the upright posture and the contents located at the connection portion between the mouth portion 21 and the body portion 23 are moved downward, they are stored on the mouth portion 21 side. It is easy for the contents to flow down along the rib 401 downward. Therefore, it can suppress reliably that the contents are stored by the mouth part 21 side. The rib 401 may be formed at least from the mouth portion 21 to the bulging portion 31.

  In addition, in the range which does not deviate from the meaning of this invention, it is possible to replace suitably the component in the embodiment mentioned above by the known component, and you may combine the modification mentioned above suitably.

DESCRIPTION OF SYMBOLS 1,100,200,300,400 ... Resin ampule 11 ... Container main body 12 ... Head part 21 ... Mouth part 23 ... Trunk part 27 ... Weakening part 31,231 ... Swelling part 401 ... Rib O ... Container axis | shaft

Claims (4)

A bottomed cylindrical container body for storing contents;
In a resin ampoule provided with a head that is connected to the mouth portion of the container body via a breakable weakening portion and closes the mouth portion,
Of the container body, a bulging portion that bulges into the container body is formed in a part or a plurality of portions in the circumferential direction in the connection portion between the mouth portion and the body portion,
A resin ampoule characterized in that a rib protruding toward the inside of the container main body is extended at least in a portion extending from the mouth portion through the bulging portion to the body portion in the container main body. .   2. The resin product according to claim 1, wherein a portion of the outer surface of the container body that is located in the bulging portion is recessed toward the inside of the container body following the shape of the inner surface of the bulging portion. ampoule.   3. The resin ampoule according to claim 1, wherein the head is formed in a hollow opening in the mouth.   The opening surface opened to the trunk portion side of the mouth portion extends in a direction intersecting with a container axial direction of the container main body by the bulging portion. 4. The resin ampoule according to any one of 3 above.

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