JP5452883B2 - Resin ampoule - Google Patents

Description

  The present invention relates to a resin ampoule that contains contents such as liquid, powder, granule, paste and the like.

As this type of ampoule, conventionally, for example, as shown in Patent Document 1 below, a container body that contains contents and a mouth part that is connected to the mouth part of the container body through a breakable part are provided. There is known a configuration including a head that seals a part and a plate-like knob connected to the head. The above-mentioned head and the knob are connected via a thin part that is thinner than the knob. In the ampoule having such a configuration, by holding the container body and picking the knob with a finger or the like and twisting or bending both, stress is applied to the rupture portion, and the rupture portion is broken. Thereby, the head is separated from the container body, and the container body can be opened.
Japanese Utility Model Publication No. 61-74529

However, since the resin ampule has lower rigidity than the glass ampule, the mouth portion of the container body is easily deformed when the opening operation is performed in the above-described conventional configuration. When the mouth portion of the container body is deformed, stress is less likely to concentrate on the rupture portion, so that the rupture portion is less likely to break and the opening operability is deteriorated.
In particular, when the head has a hollow structure, the head is easily deformed, and thus the head is deformed together with the mouth of the container body when the opening operation is performed. For this reason, compared with the case where a head is solid, the opening part of a container main body becomes easy to deform | transform especially, and there exists a problem that opening operativity worsens further.

  The present invention has been made in consideration of the above-described conventional problems, and provides a resin ampoule that can easily break the breaking portion when the opening operation is performed, and can improve the opening operability. The purpose is that.

The resin ampule according to the present invention includes a container main body that contains contents, a head that is connected to the mouth of the container main body via a breakable portion, and seals the mouth, and the head In the resin ampoule provided with a knob connected to the head, the head has a hollow shape having an internal space communicating with the inside of the container body, and the outer peripheral surface of the mouth has the A convex rib extending along the circumferential direction of the mouth portion is formed, and a side plate portion extending along the axial direction of the container main body projects from the outer peripheral surface of the container main body. The rib is connected to the side plate portion, and is disposed at a position separated from a boundary surface between the head and the container main body .

Due to such features, the convex ribs increase the rigidity of the mouth, and when the opening operation is performed, the mouth becomes difficult to deform, and stress tends to concentrate on the fractured portion. Furthermore, since the convex rib extends in the circumferential direction of the mouth portion, both the radial and circumferential rigidity of the mouth portion are reinforced by the convex rib. For this reason, when a container main body and a knob | pick part are rotated relatively around the center axis line of a container main body, and a container main body and a head are twisted and cut | disconnected, especially a mouth part becomes difficult to deform | transform.
In addition, since the convex rib extends in the circumferential direction of the mouth portion, it is possible to perform the opening operation by grasping the lower part (opposite side of the head side) of the convex rib in the container body. Compared with the case where the convex rib is extended in the axial direction, it becomes easier to grip the container body.

Further, a side plate portion extending along the axial direction of the container main body is projected on the outer peripheral surface of the container main body, and the convex rib is connected to the side plate portion. The rigidity of the part is reinforced, and the mouth part whose rigidity is reinforced by the convex ribs and the side plate part becomes more difficult to deform.

  According to the resin ampoule according to the present invention, the rigidity of the mouth portion is increased, and stress is easily concentrated on the breaking portion during the opening operation. Therefore, the breaking portion can be easily broken when the opening operation is performed. The opening operability can be improved.

Hereinafter, embodiments of a resin ampoule according to the present invention will be described with reference to the drawings.
FIG. 1 is a front view of an ampule 1 that is an example of a resin ampule according to the present invention, FIG. 2 is a side view of the ampule 1 shown in FIG. 1 viewed from the side, and FIG. It is the front view showing the state shape | molded in.
1 indicates a central axis of the container body 2 to be described later, and is simply referred to as “axis O” hereinafter. In the present embodiment, the direction along the axis O is defined as the “axial direction”, and the direction orthogonal to the axis O is defined as the “radial direction”. In the present embodiment, the mouth 20 side (upper side in FIG. 1) of the container body 2 is referred to as “upper side”, and the opposite side (lower side in FIG. 1) is referred to as “lower side”.

  As shown in FIGS. 1 and 2, the ampoule 1 is a resin container for storing the contents of liquid, powder, granules, paste, etc. in a sealed state, and the contents are accommodated as a schematic configuration. A container main body 2, a head 3 that seals the mouth 20 of the container main body 2, and a knob 4 that is integrally connected to the head 3. The container main body 2, the head 3 and the knob 4 are integrally formed by, for example, a blow molding method. In addition, as resin material which forms the ampule 1, synthetic resins, such as a polypropylene and polyethylene, are used, for example.

  The container body 2 has a cylindrical shape with a circular cross-sectional view. More specifically, the container body 2 includes a cylindrical body portion 21 extending along the axis O, a bottom portion 22 provided below the body portion 21, and a mouth portion provided above the body portion 21. 20, a cylindrical injection portion 24 provided on the bottom portion 22, and a side plate portion 25 projecting radially outward from the outer peripheral surfaces of the trunk portion 21 and the mouth portion 20. The trunk portion 21, the bottom portion 22, the mouth portion 20, and the injection portion 24 are coaxially arranged with the axis O as a common axis.

  The lower end of the mouth part 20 has a smaller diameter than the upper end of the body part 21, and the body part 21 and the mouth part 20 have a tapered part 26 that is gradually reduced in diameter from the upper end of the body part 21 toward the lower end of the mouth part 20. It is connected through. Further, the upper portion of the mouth portion 20 forms a substantially hemispherical shape whose diameter is gradually reduced toward the upper side. The bottom portion 22 is an annular bottom plate portion having a tapered shape that is gradually reduced in diameter as it goes downward from the lower end of the body portion 21. The injection part 24 hangs down along the axis O from the inner edge of the bottom part 22, and the inside of the injection part 24 communicates with the inside of the trunk part 21 through the inside of the bottom part 22. Note that the lower end of the injection portion 24 is open when the ampule 1 is molded, and is closed by heat welding or the like after the contents are injected into the inside of the ampule 1. The side plate portion 25 is a plate portion that extends along the axial direction, and extends from the upper end of the mouth portion 20 to the lower end of the trunk portion 21. The front end (side end) of the side plate portion 25 is formed in parallel with the axis O. The side plate portions 25 are respectively formed on both sides of the body portion 21 and the mouth portion 20, and the side plate portions 25 on both sides are disposed symmetrically about the axis O. That is, the side plate parts 25 on both sides are arranged on the same plane.

  Further, the above-described mouth portion 20 is formed with a convex rib 7 extending in the circumferential direction of the mouth portion 20. More specifically, the convex rib 7 is a flange portion projecting radially outward from the outer peripheral surface of the substantially hemispherical upper portion of the mouth portion 20, and a plate portion disposed perpendicular to the axis O It is. The convex rib 7 extends over the entire circumference of the mouth portion 20 and has a substantially annular shape in plan view. Moreover, the convex rib 7 is arrange | positioned in the position spaced apart from the constriction part 5 (boundary surface of the head 3 and the container main body 2) mentioned later. Moreover, the convex rib 7 is arrange | positioned perpendicularly | vertically with respect to the side plate part 25, and is integrally connected with the side plate part 25 of both sides, respectively. Further, the outer diameter of the convex rib 7 is substantially the same as the distance D between the tips (side ends) of the side plate portions 25 on both sides, and the outer peripheral surface of the convex rib 7 and the tip surface (side end surface) of the side plate portion 25 are the same. It is formed substantially flush.

  The head 3 has a hollow shape having an internal space communicating with the inside of the container main body 2, and the mouth of the container main body 2 through a constricted portion 5 (corresponding to a broken portion in the present invention) that can be broken. It is connected to the part 20. More specifically, the head 3 includes a top wall 30 that is substantially circular in plan view, and a peripheral wall 31 that is suspended from the outer edge of the top wall 30. The lower portion of the peripheral wall portion 31 has a substantially hemispherical shape that is gradually reduced in diameter toward the lower side, and the lower end of the peripheral wall portion 31 is connected to the upper end of the mouth portion 20 of the container body 2. And the boundary part (constriction part 5) of the opening part 20 of the container main body 2 gradually diameter-reduced as it goes upwards, and the head 3 gradually diameter-reduced as it goes downwards is diameter-reduced inside radial direction. The cross-sectional view has a substantially V-shaped cut shape, and is broken by twisting or folding the container body 2 and the head 3.

  The picking part 4 is a part for picking with a finger or the like when the ampoule 1 is opened. If it demonstrates concretely, the knob | pick part 4 is a plate-shaped part of the side view substantially rectangular shape thicker than the side plate part 25 mentioned above. The knob portion 4 is disposed on the same plane as the side plate portion 25 described above, and the lower end of the knob portion 4 and the upper end of the side plate portion 25 are connected via a thinned weakened portion 27. Further, a substantially concave cutout 40 is formed in the lower portion of the knob 4, and the above-described head 3 is disposed inside the cutout 40. The upper surface and both side surfaces of the head 3 and the inner edge of the notch 40 of the knob 4 are connected via a thin part 6 that is thinner than the knob 4. The thin-walled portion 6 extends over the entire inner edge of the notch 40 described above, and has a gate shape that surrounds both sides and the upper side of the head 3 in a side view.

  The ampule 1 having the above-described configuration is manufactured in a state where a plurality of ampules 1 are connected as shown in FIG. More specifically, the plurality of ampoules 1 are molded by a blow molding method in a state where they are continuously arranged in parallel. At this time, the side plate portions 25 and the knob portions 4 of the adjacent ampules 1 are connected to each other via the weakening portion 9. Then, after the molding of the plurality of ampoules 1 is completed, the contents are respectively injected from the injection portions 24 of the plurality of ampules 1, and then a heated mold for closing is pressed against the lower end portions of the injection portions 24. Thus, the resin at the lower end portion of the injection portion 24 is melted and softened and molded into a flat shape or the like (the opposing surfaces are thermally welded), and the lower end portion of the injection portion 24 is closed. Thereby, the internal space of the ampoule 1 is sealed.

  Next, the operation of the ampoule 1 having the above configuration will be described.

  When opening the ampoule 1 having the above-described configuration, the container body 2 is grasped and the knob 4 is picked with fingers or the like, and the container body 2 and the knob 4 are relatively rotated around the axis O to twist them. Or the container main body 2 and the knob | pick part 4 are inclined relatively, and both are folded. At this time, since the convex rib 7 extends in the circumferential direction of the mouth portion 20, it is possible to grip the lower part of the convex rib 7 in the container main body 2. Cheap. By performing the opening operation as described above, stress is applied to the constricted portion 5, the constricted portion 5 is broken, and the head 3 and the knob 4 (separating piece 8) are separated from the container main body 2. The upper opening end of the mouth 20 is opened.

  At this time, since the rigidity of the mouth portion 20 is reinforced by the convex rib 7, the mouth portion 20 is not easily deformed when the opening operation described above is performed. That is, even if the container body 2 and the knob portion 4 are twisted or folded, the vicinity of the constricted portion 5 of the resin mouth portion 20 does not extend, and the separation piece 8 (head portion 3) is formed on the rigid mouth portion 20. It is rotated or tilted relatively. Thereby, stress becomes easy to concentrate on the constricted part 5, and the constricted part 5 becomes easy to fracture | rupture. Furthermore, in the ampoule 1 described above, the convex rib 7 extends in the circumferential direction of the mouth portion 20 and the rigidity in both the radial direction and the circumferential direction of the mouth portion 20 is enhanced. When the main body 2 and the knob portion 4 are relatively rotated and the container main body 2 and the head 3 are twisted, the mouth portion 20 is particularly difficult to be deformed, and stress is easily concentrated on the constricted portion 5.

In the ampoule 1 described above, since the convex rib 7 is connected to the side plate portion 25, the rigidity of the convex rib 7 and the side plate portion 25 is enhanced. Therefore, deformation of the mouth portion 20 whose rigidity is enhanced by the convex ribs 7 and the side plate portions 25 can be reliably suppressed.
Further, in the ampoule 1 described above, since the convex rib 7 is disposed at a position separated from the constricted part 5, the constricted part 5 is not easily affected by sink marks or the like during resin molding of the ampoule 1, and the constricted part 5. Cracks are less likely to occur.

  According to the ampule 1 having the above-described configuration, the rigidity of the mouth portion 20 is increased, and stress is easily concentrated on the constricted portion 5 during the opening operation. Therefore, the constricted portion 5 is easily broken when the opening operation is performed. And the opening operability can be improved. In particular, the constricted portion 5 can be easily broken by twisting the container body 2 and the head 3.

  Moreover, since the convex rib 7 is extended in the circumferential direction and the part below the convex rib 7 of the container main body 2 can be hold | gripped, the container main body 2 is easy to hold | grip and it is easy to perform opening operation. It is also possible to perform the opening operation by grasping the flange-like convex rib 7.

  Moreover, since the knob | pick part 4 and the side-plate part 25 of the container main body 2 are connected via the weakening part 27, it prevents that the container main body 2 and the knob | pick part 4 are twisted or bent carelessly. And the leakage of the contents in the ampoule 1 can be prevented.

  The embodiment of the resin ampoule according to the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the above-described embodiment, the injection part 24 for injecting the contents into the container body 2 is suspended from the bottom part 22 of the container body 2, but the present invention is limited to the above-described configuration. For example, the structure which the injection | pouring part stood on the upper surface of the head 3 may be sufficient.

Moreover, in above-described embodiment, the side plate part 25 is protrudingly provided by the outer peripheral surface of the container main body 2, and the several ampule 1 was provided in a row by connecting each side plate part 25 mutually. Although together while being molded, the present invention may be configured to mold the a sample 1 one by one.

  Further, in the above-described embodiment, the notch portion 4 is formed with the concave notch 40, the head 3 is disposed inside the notch 40, and the upper surface and both side surfaces of the head 3 are Although it is connected to the inner edge of the cutout portion 40 via the thin wall portion 6, the present invention is not limited to the above-described configuration. For example, a plate-like knob portion in which the cutout portion 40 is not formed. Is disposed above the head 3, and the lower side portion of the knob and the upper surface of the head 3 may be connected via the thin portion 6, or the thin portion 6 may not be formed. Is also possible. Furthermore, the knob | pick part in this invention is not limited to a plate-shaped thing, For example, a rod-shaped or cylindrical shape, or a knob | pick part of another shape may be sufficient.

Moreover, in above-mentioned embodiment, while the upper part of the opening part 20 of the container main body 2 is gradually diameter-reduced, the lower part of the surrounding wall part 31 of the head 3 is diameter-reduced gradually as it goes below. In addition, a substantially V-shaped breakable constricted portion 5 is formed between the container main body 2 and the head 3, but the present invention is not limited to the above-described configuration. The connecting portion between the upper end of the mouth of the container body and the lower end of the head is not constricted, and the upper end of the container body and the lower end of the head are connected via a thin portion (corresponding to the breaking portion of the present invention). It may be a configuration.
In the embodiment described above, the lower end of the knob 4 and the upper end of the side plate portion 25 are connected via the weakening portion 27. However, in the present invention, the above-described weakening portion 27 can be omitted. Yes, the knob 4 and the side plate 25 may be separated.
In the above-described embodiment, the plate-shaped knob 4 is thicker than the side plate 25. However, in the present invention, the thickness of the knob 4 and the side plate 25 is the same. It is also possible to make the side plate portion 25 thicker than the knob portion 4.

Further, in the above-described embodiment, the plate-like convex rib 7 arranged perpendicular to the axis O is provided, but the shape of the convex rib in the present invention can be changed as appropriate, for example, a cross section A substantially rectangular, triangular, or semicircular convex rib may be formed.
Moreover, in above-mentioned embodiment, although the head 3 has comprised the cylindrical shape which consists of the top wall part 30 and the surrounding wall part 31, the shape of the head in this invention can be changed suitably, for example, It may be a hollow head formed in a substantially conical shape, or may be a hollow head formed in a substantially spherical shape. Furthermore, the present invention can also be applied to a resin ampoule having a solid head.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a front view of the ampoule for demonstrating embodiment of this invention. It is a side view of the ampoule for demonstrating embodiment of this invention. It is a front view of several ampules for demonstrating embodiment of this invention.

Explanation of symbols

1 Ampoule (resin ampoule)
2 Container body 3 Head 4 Pick section 5 Constricted section (breaking section)
7 Convex rib 25 Side plate

Claims (1)

A container main body that contains the contents; a head that is connected to the mouth of the container main body via a breakable portion and seals the mouth; and a knob connected to the head. In the resin ampoule provided,
The head has a hollow shape having an internal space communicating with the inside of the container body,
Convex ribs extending along the circumferential direction of the mouth are formed on the outer peripheral surface of the mouth ,
On the outer peripheral surface of the container main body, a side plate portion extending along the axial direction of the container main body protrudes.
The convex rib is connected to the side plate portion and disposed at a position spaced from a boundary surface between the head and the container body .

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