Fixed quantity discharge container

Abstract

To provide a fixed quantity discharge container capable of discharging a predetermined amount of content by pressing an operation part formed to be partially press-deformable.SOLUTION: At a trunk part 4, at least two arc-shaped or elliptical arc-shaped groove-like recessed parts 40 are disposed at a predetermined interval along the height direction by aligning the direction, and a portion positioned between the adjacent two groove-like recessed parts 40 is formed elastically press-deformable.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dispensing container. [Background technology]

[0002] Conventionally, there have been known fixed-quantity dispensing containers configured to be able to dispense a fixed amount of content. For example, Patent Document 1 discloses a fixed-quantity dispensing container having a fixed-quantity deformation portion composed of a pair of panels arranged at a circumferential interval and an operated portion provided between the pair of panels and capable of being pressed from outside the container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-107242 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present invention have conducted extensive research in light of the fact that in the above-mentioned background art, the amount of ejection can vary depending on the pressing force, pressing amount, and pressing time during the pressing operation, and as a result have completed the present invention. [Means for solving the problem]

[0005] The fixed-quantity dispensing container of the present invention is a fixed-quantity dispensing container having an operating portion formed in the body portion that can be elastically deformed by pressure, and at least two arc-shaped or elliptical arc-shaped groove-like recessed portions are arranged in the body portion with the same orientation and at a predetermined interval along the height direction, and the portion located between two adjacent groove-like recessed portions is formed so that it can be elastically deformed by pressure. [Effects of the Invention]

[0006] According to the present invention, it is possible to provide a constant-volume dispensing container that can dispense a predetermined amount of content by pressing a portion that is formed so as to be elastically deformable under pressure. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing an outline of a synthetic resin container according to an embodiment of the present invention. [Figure 2] 1 is a front view showing an outline of a synthetic resin container according to an embodiment of the present invention. [Figure 3] 1 is a side view showing an outline of a synthetic resin container according to an embodiment of the present invention. [Figure 4] FIG. 4 is an enlarged view of the area surrounded by the dashed line in FIG. 3. [Figure 5] FIG. 3 is a cross-sectional view of the AA end face of FIG. 2. [Figure 6] FIG. 10 is a perspective view showing an outline of a modified synthetic resin container according to an embodiment of the present invention. [Figure 7] FIG. 10 is a front view showing an outline of a modified synthetic resin container according to an embodiment of the present invention. [Figure 8] FIG. 10 is a side view showing an outline of a modified synthetic resin container according to an embodiment of the present invention. [Figure 9] FIG. 9 is an enlarged view of the area surrounded by the dashed line in FIG. 8. [Figure 10] FIG. 8 is a BB end view of FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0009] Fig. 1 is a perspective view showing a schematic diagram of a synthetic resin container according to this embodiment, Fig. 2 is a front view of the same, and Fig. 3 is a side view of the same. The container 1 shown in these figures has a mouth 2, a shoulder 3, a body 4, and a bottom 5.

[0010] The mouth 2 is a cylindrical portion that serves as an outlet for pouring the contents. In the example shown, an engaging protrusion 21 is provided on the side surface of the open end of the mouth 2 for attaching a lid by stoppering when sealing the container 1 filled with the contents. Although not particularly shown, the lid may be a lid with a nozzle that is equipped with a discharge nozzle.

[0011] A neck ring 22 is provided in the mouth 2, projecting annularly in the circumferential direction. The mouth 2 includes a cylindrical portion of roughly the same diameter that hangs down from directly below the neck ring 22. The lower end of the mouth 2 is connected to a shoulder 3 that expands in diameter toward the body 4 and connects the mouth 2 and body 4.

[0012] The body 4 occupies most of the height of the container 1 , and the upper end of the body 4 is connected to the shoulder 3 , and the lower end of the body 4 is connected to the bottom 5 .

[0013] Here, the height direction refers to the direction perpendicular to the horizontal plane when the container 1 is placed upright on the horizontal plane with the mouth 2 facing upward, and defines the up / down, left / right and length / width directions of the container 1 in this state (the state shown in Figure 2).

[0014] In the example shown, the cylindrically formed body 4 has at least two (three in the example shown) groove-like recesses 40 that recess into the inside of the container in an arc-shaped manner, with the circumferential surface of the body 4 recessed in an arc-shaped manner, and are arranged along the height direction with both end edges aligned and facing the bottom 5.

[0015] In the illustrated example, the groove recessed portion 40 is arranged to extend in an arc shape, but the groove recessed portion 40 may also be arranged to extend in an elliptical arc shape, preferably a horizontally elongated elliptical arc shape with its major axis along the circumferential direction. The cross section of the groove recessed portion 40 perpendicular to the extension direction may be V-shaped as shown in the figure, or may be U-shaped, etc. The radius of curvature of the groove recessed portion 40 is preferably 15 to 23 mm.

[0016] When arranging such groove-like recesses 40 in the body 4, at least two groove-like recesses 40 are aligned and arranged at a predetermined interval along the height direction, so that the area between two adjacent groove-like recesses 40 is pressed inward and partially inverted when, for example, the body 4 is held in one hand and pressed with the fingertip of the thumb, and then elastically returns to its original shape when the pressing force is released. To enable such elastic deformation by pressing, it is preferable to appropriately adjust the interval between two adjacent groove-like recesses 40 so that they are not too far apart.

[0017] For example, the maximum separation distance between two adjacent groove-shaped recesses 40 (in the illustrated example, the separation distance at the circumferential center of the groove-shaped recesses 40) can be appropriately adjusted to preferably 5 to 23 mm. In this case, both end edges of one groove-shaped recessed portion 40 may be positioned away from the other groove-shaped recessed portion 40 (see modified examples described later), but it is preferable that the area between two adjacent groove-shaped recessed portions 40 is surrounded by the two groove-shaped recessed portions 40 without any gaps.

[0018] The wall thickness of the body 4 is preferably 0.30 to 0.40 mm. The depth to which the groove-like recess 40 recesses into the circumferential surface of the body 4 toward the inside of the container is preferably 1 to 2 mm.

[0019] By forming the area between two adjacent groove-like recesses 40 to be deformable under pressure as described above, the amount of deformation when that area is pushed into the container and partially inverted does not vary greatly each time it is pressed and deformed, but can be made to be about the same, thereby reducing the volume of container 1. Therefore, by gripping body 4 and tilting or inverting container 1, and pressing the area between two adjacent groove-like recesses 40 as operating part 10, it is possible to discharge a predetermined amount of content from the discharge nozzle of the lid, for example.

[0020] Furthermore, when performing this operation, the impact of the area between two adjacent groove-like recesses 40, i.e., the operating part 10, being pushed into the container and partially inverted, produces a sound and conveys a clicking sensation to the operator. This allows the operator to clearly recognize that a pressing operation has been performed, and prevents the operating part 10 from being pushed too far or not pushed far enough, which would result in inconsistent deformation, thereby more reliably discharging the predetermined amount of contents.

[0021] Furthermore, in an embodiment including three groove-shaped recesses 40 arranged along the height direction, as in the illustrated example, when the portion between the central groove-shaped recessed portion 401 (hereinafter referred to as the "central groove-shaped recessed portion") and the groove-shaped recessed portions 402 (hereinafter referred to as the "side groove-shaped recessed portions") located on both end edges of the central groove-shaped recessed portion 401 among the three groove-shaped recessed portions 40 arranged in order along the height direction is pressed into the container, the most effective tactile sensation, such as a sound or a clicking sensation, can be generated. Therefore, in this embodiment, it is preferable that the portion between the central groove-shaped recessed portion 401 and the side groove-shaped recessed portions 402 be the operating portion 10.

[0022] As described above, according to this embodiment, the operator can be notified of the timing to stop pressing the operating unit 10 by the sound or tactile sensation such as a click that occurs when the operating unit 10 is pressed into the container. As a result, it is possible to reduce variations in the amount of discharge due to the pressing force, pressing amount, and pressing time when pressing the operating unit 10 to discharge the contents.

[0023] In this way, when forming the elastically deformable operating portion 10 in the body 4, the groove-shaped recessed portions 40 can be formed at respective positions that face each other in the radial direction of the body 4. In other words, for one portion where a groove-shaped recessed portion 40 is formed, another groove-shaped recessed portion 40 can be formed in the other portion that faces the groove-shaped recessed portion 40 in the radial direction of the body 4, so as to form a pair with the other groove-shaped recessed portion 40.

[0024] In this case, it is preferable to increase the lateral rigidity (rigidity against lateral loads) of the body 4 by forming at least one horizontal bead-shaped groove 41 extending circumferentially between the circumferential groove-shaped recessed portions 40. In this way, the force pressing the operating unit 10 is transmitted accurately to the operating unit 10 without being dispersed, and it is possible to more effectively prevent variations in the amount of deformation when the operating unit 10 is pressed.

[0025] In this embodiment, the container 1 can be manufactured by, for example, using a thermoplastic resin to prepare a preform molded into a cylindrical shape with a bottom by injection molding, compression molding, or the like, and then molding this preform into a predetermined container shape by biaxial stretch blow molding, or the like. However, this is not limiting. The container can also be manufactured by direct blow molding, or the like.

[0026] The thermoplastic resin used can be any resin that can be blow molded. Specifically, thermoplastic polyesters such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, amorphous polyarylate, polylactic acid, polyethylene furanoate, or copolymers thereof can be used, with ethylene terephthalate-based thermoplastic polyesters such as polyethylene terephthalate being particularly preferred. Two or more of these resins may be mixed, or may be blended with other resins. Polycarbonate, acrylonitrile resin, polypropylene, propylene-ethylene copolymer, polyethylene, etc. can also be used. Furthermore, the preform is not limited to being molded into a single layer, but can also be molded into multiple layers including a gas barrier layer, etc., depending on the properties required for the container 1.

[0027] Next, a modification of this embodiment will be described. FIG. 6 is a perspective view showing an outline of a modified synthetic resin container according to this embodiment, FIG. 7 is a front view of the same, and FIG. 8 is a side view of the same.

[0028] As described above, in this embodiment, it is sufficient that at least two arc-shaped or elliptical arc-shaped groove recesses 40 are aligned and arranged at a predetermined interval along the height direction in the body 4. This modified example is an example in which two arc-shaped groove recesses 40 are aligned and arranged at a predetermined interval along the height direction in the body 4, and both end edges of one groove recessed portion 40 are positioned away from the other groove recessed portion 40.

[0029] The present invention has been described above by showing preferred embodiments, but it goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention.

[0030] For example, in the above-described embodiment, an example was illustrated in which the groove-shaped recessed portion 40 was arranged so that the operating portion 10 was formed on the upper side of the body 4, but the position at which the operating portion 10 is formed is not limited to this. Taking into consideration the operability when pressing the operating portion 10 with the tip of the thumb while holding the body 4 in one hand, the position can be adjusted appropriately depending on the dimensions (especially the height) of the container 1.

[0031] Furthermore, in the illustrated example, groove-shaped recesses 40 are formed at respective radially opposing positions on the body 4, but the groove-shaped recesses 40 may be formed on only one side. In such an embodiment, the lateral rigidity of the body 4 may be increased by forming at least one horizontal bead-shaped groove 41 so as to extend circumferentially from the vicinity of one circumferential end of the groove-shaped recessed portion 40, via a portion of the body 4 that is radially opposing the portion where the groove-shaped recessed portion 40 is formed, to the vicinity of the other circumferential end of the groove-shaped recessed portion 40.

[0032] Furthermore, as in the example shown in the figure, the trunk portion 4 can be provided with a horizontal bead-shaped annular groove portion 42 extending annularly along the circumferential direction in a location that does not interfere with the groove-shaped recessed portion 40, thereby further increasing the lateral rigidity of the trunk portion 4. [Explanation of symbols]

[0033] 1 container 10 Control section 4. Torso 40 Groove-like invagination 401 Central groove-like invagination 402 Lateral groove-like invagination 41 Groove

Claims

1. A fixed-quantity dispensing container having an operating part formed on a body part that can be elastically deformed by pressure, A fixed-quantity dispensing container characterized in that at least two arc-shaped or elliptical arc-shaped groove-like recesses are aligned and arranged at a predetermined interval along the height direction in the body portion, and the portion located between two adjacent groove-like recesses is formed so that it can be elastically deformed by pressure.

2. 2. The constant-quantity dispensing container according to claim 1, wherein the portion located between two adjacent groove-like recesses is surrounded by the two groove-like recesses without any gaps.

3. 2. The dispenser according to claim 1, wherein both end edges of one of the adjacent groove-like recesses are positioned apart from the other of the adjacent groove-like recesses.

4. A constant-quantity dispensing container as described in any one of claims 1 to 3, wherein the groove-shaped recesses are formed at respective positions that are radially opposite to each other on the body portion, and at least one horizontal bead-shaped groove is formed between the groove-shaped recesses along the circumferential direction.

5. A fixed-quantity dispensing container as described in any one of claims 1 to 3, which includes three groove-shaped recesses arranged along the height direction, and the operating part is located between a central groove-shaped recessed part located in the center and a side groove-shaped recessed part located on the side edges of both end edges of the central groove-shaped recessed part.

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