JP5076906B2 - container - Google Patents

Description

  The present invention relates to a container such as a plastic bottle having a mouth portion, a shoulder portion, a trunk portion, and a bottom portion, and particularly relates to a container that can easily grip the shoulder portion.

  Plastic bottle containers such as PET bottles are easy to mold and suitable for mass production, and have excellent properties such as high mechanical strength and light weight, so they are filled with various liquids. Used as a container in a wide range of fields. In particular, in recent years, it is used in large quantities as containers for beverages such as various beverages and mineral water.

  There are many types of bottle containers that meet market demands. For example, a container having a large capacity of about 2 liters or more is used. About the shape of a bottle container, the thing of a rectangular or square shape is conventionally employ | adopted considering the refrigerator storing property and the ease of holding.

  By the way, when a large-capacity bottle container is filled with a liquid, the weight of the container becomes considerable due to the weight of the liquid. Therefore, when the bottle container is lifted, such as when pouring the liquid as the contents, it is necessary to grip the bottle container with a considerably strong force. As described above, when the gripping force becomes strong, the container may be deformed or slip may occur between the hand holding the bottle container and the bottle container, which makes it difficult to lift the bottle container.

  For such a problem, when a bottle recess is provided in the body of the bottle container and the bottle container is gripped with one hand, the bottle container improves the gripping property by hooking a finger on the recess. Has been proposed (for example, see the concave portion for gripping a bottle container according to an embodiment of the present invention).

Moreover, the bottle container which has a holding part in the site | part above a trunk | drum is proposed (for example, refer patent document 1, 2).
For example, in the bottle container described in Patent Document 1, a flat area formed in the upper part thereof is used as a grip portion.
Moreover, in the bottle container described in patent document 2, the neck part which connects a mouth part and a shoulder part is made into the holding part.
JP 2002-283441 A JP 2002-347771 A

As shown in Patent Documents 1 and 2, a bottle container having a gripping portion on the upper side of the body portion does not hide the gripping portion even when packed in a box or stored in a refrigerator. Therefore, there is an advantage that it can be easily taken out from a box or a refrigerator.
However, since the bottle containers described in Patent Documents 1 and 2 both have a wide vertical surface as a gripping part, the problem is that the capacity is greatly reduced compared to bottle containers of the same height. There is.
Moreover, since the bottle container described in Patent Document 1 has a special shape and manufacturing method, there is a problem that not only the application is limited but also the cost is increased.

  The present invention has been considered in view of the above circumstances, and an object of the present invention is to provide a container capable of avoiding a significant decrease in capacity and an increase in cost while facilitating removal from a box or a refrigerator.

In order to achieve the above object, the container of the present invention comprises a mouth, a shoulder extending downward from the lower end of the mouth, a rectangular tubular trunk extending downward from the lower end of the shoulder, And at least one set of opposing surfaces of the shoulder, a finger-hanging recess that is a finger-hook when lifting the container is formed, and the finger-hanging recess is formed on the mouth side. A first fold line is formed on the surface located between the finger hanging recess and the mouth portion so as to be located on a straight line passing through the vertex, and the finger hanging recess has a corner portion located on the left and right, from the vicinity of the corners, as constituent that has a second fold line extending toward the left and right are formed.

  If it does in this way, a container can be easily lifted by grasping a crevice for finger hanging formed in a shoulder. In particular, even when the box is packed or stored in the refrigerator, the finger-hanging concave portion is not hidden, so that it can be easily taken out from the box or the refrigerator. Further, since the finger hanging concave portion is not formed as a dedicated vertical surface but is formed by utilizing the shoulder portion, it is possible to greatly reduce the capacity of the container and avoid the disadvantage of increasing the cost.

In the container of the present invention, it is preferable that the horizontal distance between the upper ends of the pair of concave portions for finger hanging is 55 to 90 mm.
In this way, when gripping a pair of finger hanging recesses, an appropriate distance is secured between the fingers to be gripped, so that gripping performance can be improved.

Moreover, it is preferable that the vertical distance from the upper end of the said finger hanging recessed part to the upper end of the said mouth part is 35-80 mm.
This makes it easier to lift the container because it is easier to grip a pair of finger hanging recesses.

Moreover, it is preferable that the container of this invention is 3-15 mm in the depth of the said recessed part for finger-hanging.
In this way, the finger hook recess is secured at a depth that allows the finger to be easily hooked, so that the certainty of the finger hook with respect to the finger hook recess is enhanced.

In the container of the present invention, the vertical width of the finger-hanging recess is preferably 50 mm or less, more preferably 15 to 40 mm.
In this way, a sufficiently large vertical width as compared with the finger is secured in the finger hanging concave portion, so that the finger hanging with respect to the finger hanging concave portion is facilitated.

Moreover, as for the container of this invention, it is preferable that the left-right width | variety of the said recessed part for finger hangings is 90 mm or less, More preferably, it is 15-70 mm.
If it does in this way, since a plurality of fingers can be hung on the finger hanging recess, it becomes easy to lift the container.

In the container of the present invention, it is preferable that an inclination of a surface on which the finger hanging concave portion is formed with respect to a vertical axis in the shoulder portion is −10 to 30 degrees.
If it does in this way, since it becomes easy to grasp the finger hanging concave part from the upper part, it becomes easier to lift the container.

Moreover, the container of this invention WHEREIN: It is preferable that the inclination with respect to a horizontal axis of the side wall surface formed in the said mouth part side with respect to the said finger part recessed part is 5 to 80 degree | times.
In this way, an angle at which the finger can be easily hooked is ensured on the side wall surface of the finger hooking recess, so that the certainty of the finger hooking with respect to the finger hooking recess is enhanced.

Further, as described above, in the container of the present invention, the finger hanging concave portion has an apex on the mouth side, and the apex is provided on a surface located between the finger hanging concave portion and the mouth portion. It is set as the structure by which the 1st fold line is formed so that it may be located on the straight line which passes .
By doing in this way, it becomes easy to crush a shoulder part in reducing the volume of a bottle container in the disposal processing after use. In particular, by forming a fold line so that it lies on a straight line passing through the apex on the mouth side of the finger hanging recess, stress is easily concentrated on the fold line, and when the shoulder is crushed, It will be easier to bend the shoulder along.

In the container of the present invention, as described above, the finger hanging concave portion has corner portions located on the left and right sides, and the second fold lines extending toward the left and right respectively from the vicinity of the corner portions. It can be set as the formed structure .
By doing in this way, a shoulder part comes to be crushed while bending along both a 1st fold line and a 2nd fold line, and it becomes easier to crush a shoulder part.

Moreover, the container of this invention can be set as the structure by which the convex storage-shaped finger accommodation recessed part is formed in the container inner side in the bottom side of the said finger hanging recessed part.
If it does in this way, it will become easy to grasp the crevice for finger hanging, and it will become possible to raise a bottle container more easily.

In addition, the container of the present invention is a second finger-hanging recess that becomes a finger-hook when the container is tilted to pour out the contents from the mouth portion to at least one pair of opposed surfaces in the lower end portion of the body portion. It is preferable that the structure is formed.
In this manner, when the container is tilted and the contents are poured out from the mouth, the tilted container is stably supported by gripping the second finger-hanging recess formed at the lower end of the trunk. be able to.

Further, in the container of the present invention, the second finger hanging concave portion has a corner portion located on the left and right, and a third fold line extending from the vicinity of the corner portion toward the left and right is formed. It can be set as the structure which has.
In this way, the lower end portion of the body portion can be crushed while being bent along the third fold line.

As described above, according to the present invention, the container can be easily lifted by grasping the finger-hanging recess formed in the shoulder portion, and the finger-hanging is possible even in a boxed state or a state where the container is stored in the refrigerator. Since the concave portion for use is not hidden, it can be easily taken out from the box or the refrigerator. Further, since the finger hanging concave portion is not formed as a dedicated vertical surface but is formed by utilizing the shoulder portion, it is possible to greatly reduce the capacity of the container and avoid the disadvantage of increasing the cost. In particular, according to the present invention, the finger hanging concave portion has a vertex on the mouth side, and the first portion is positioned on a straight line passing through the vertex on the surface located between the finger hanging concave portion and the mouth portion. In addition to forming a fold line, the finger-hanging recess has a corner portion located on the left and right sides, and a second fold line extending from the vicinity of the corner portion toward the left and right is formed. Thus, when the volume of the bottle container is reduced during the disposal process after use, the shoulder portion is easily crushed.

It is a front view of the bottle container which concerns on 1st reference embodiment of this invention. It is a side view of the bottle container which concerns on 1st reference embodiment of this invention. It is XX sectional drawing of the bottle container which concerns on 1st reference embodiment of this invention. (A) is a top view which shows the upper part of the bottle container which concerns on 1st reference embodiment of this invention, (B) is a front view which shows the upper part of the bottle container which concerns on 1st reference embodiment of this invention, (C ) Is a side view showing the upper part of the bottle container according to the first reference embodiment of the present invention. (A) is a front view which shows the lower part of the bottle container which concerns on 1st reference embodiment of this invention, (B) is a side view which shows the lower part of the bottle container which concerns on 1st reference embodiment of this invention. (A) is a top view which shows the upper part of the bottle container which concerns on 2nd reference embodiment of this invention, (B) is a front view which shows the upper part of the bottle container which concerns on 2nd reference embodiment of this invention, (C ) Is a side view showing the upper part of the bottle container according to the second reference embodiment of the present invention. (A) is a plan view showing the upper part of the bottle container according to the third reference embodiment of the present invention, (B) is a front view showing the upper part of the bottle container according to the third reference embodiment of the present invention, (C ) Is a side view showing the upper part of the bottle container according to the third reference embodiment of the present invention. (A) is a plan view showing the upper part of the bottle container according to the fourth reference embodiment of the present invention, (B) is a front view showing the upper part of the bottle container according to the fourth reference embodiment of the present invention, (C ) is a side view showing the upper portion of a bottle container according to a fourth reference embodiment of the present invention. (A) is a top view which shows the upper part of the bottle container which concerns on 5th reference embodiment of this invention, (B) is a front view which shows the upper part of the bottle container which concerns on 5th reference embodiment of this invention. (A) is a top view which shows the upper part of the bottle container which concerns on 6th reference embodiment of this invention, (B) is a front view which shows the upper part of the bottle container which concerns on 6th reference embodiment of this invention. (A) is a top view which shows the upper part of the bottle container which concerns on 7th reference embodiment of this invention, (B) is a front view which shows the upper part of the bottle container which concerns on 7th reference embodiment of this invention. It is sectional drawing which shows the upper part of the bottle container which concerns on 8th reference embodiment of this invention. (A)-(F) It is a figure which shows various embodiment of the recessed part for finger hooks of this invention. It is a front view of the bottle container which concerns on 1st embodiment of this invention. It is a side view of the bottle container which concerns on 1st embodiment of this invention. It is a front view which shows the upper part of the bottle container which concerns on 1st embodiment of this invention. It is a front view which shows the lower part of the bottle container which concerns on 1st embodiment of this invention. It is a front view of the bottle container which concerns on 2nd embodiment of this invention. It is a side view of the bottle container which concerns on 2nd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle container 2 Mouth part 3 Shoulder part 4 Trunk part 5 Bottom part 7 Graining recessed part 9 Fingering recessed part 9a Vertex 9b Corner part 90 Finger storing recessed part 10 Side wall surface 11 Bottom face 13 Second finger hanging recessed part 13a Corner part FL1 1st part Folding line FL2 Second folding line FL3 Third folding line

  Hereinafter, an embodiment applied to a plastic bottle container will be described as an example of the container of the present invention.

Any resin can be used as the resin constituting the bottle container as long as it is a thermoplastic resin that can be stretch blow molded and thermally crystallized.
Specifically, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, polylactic acid, or thermoplastic polyesters such as copolymers thereof, blends of these resins or other resins are suitable. In particular, ethylene terephthalate thermoplastic polyesters such as polyethylene terephthalate are preferably used.
Further, acrylonitrile resin, polypropylene, propylene-ethylene copolymer, polyethylene and the like can also be used.
These resins are blended with various additives such as colorants, ultraviolet absorbers, mold release agents, lubricants, nucleating agents, antioxidants, antistatic agents and the like within a range that does not impair the quality of the molded product. be able to.

The ethylene terephthalate-based thermoplastic polyester constituting the bottle container occupies most of the ester repeating units, generally 70 mol% or more, and has an ethylene terephthalate unit, a glass transition point (Tg) of 50 to 90 ° C., a melting point (Tm ) Is in the range of 200 to 275 ° C.
As an ethylene terephthalate-based thermoplastic polyester, polyethylene terephthalate (PET) is particularly excellent in terms of pressure resistance, heat resistance, heat pressure resistance, etc. In addition to ethylene terephthalate units, dibasic acids such as isophthalic acid and naphthalenedicarboxylic acid Copolyesters containing a small amount of ester units composed of diols such as propylene glycol can also be used.

Moreover, the bottle container of this embodiment can also be comprised by the thermoplastic polyester layer of two or more layers besides the case where it is comprised by the single layer (one layer) thermoplastic polyester layer.
Furthermore, the bottle container of the present embodiment can include an intermediate layer enclosed between an inner layer and an outer layer composed of two or more thermoplastic polyester layers, and the intermediate layer can be a barrier layer or an oxygen absorbing layer. it can.
By providing the barrier layer and the oxygen absorbing layer in this manner, it is possible to suppress the permeation of oxygen from the outside into the bottle container, and to prevent the alteration of the contents in the bottle container due to the oxygen from the outside.
Here, as the oxygen absorbing layer, any layer can be used as long as it absorbs oxygen and prevents permeation of oxygen, but a combination of an oxidizable organic component and a transition metal catalyst, or substantially It is preferred to use a combination of a gas barrier resin that does not oxidize, an oxidizable organic component and a transition metal catalyst.

[First Reference Embodiment]
Below, the bottle container which concerns on 1st reference embodiment of this invention is demonstrated with reference to FIGS.
Figure 1 is a front view of a bottle container according to a first embodiment of the present invention and FIG. 2 is a side view of a bottle container according to a first embodiment of the present invention and FIG. 3, the first reference of the present invention XX sectional drawing of the bottle container which concerns on embodiment, (A) of FIG. 4 is a top view which shows the upper part of the bottle container which concerns on 1st reference embodiment of this invention, (B) is 1st of this invention front view showing the upper portion of a bottle container according to the reference embodiment, (C) is a side view showing the upper portion of a bottle container according to the first embodiment of the present invention and in FIG. 5 (a), first the present invention The front view which shows the lower part of the bottle container which concerns on one reference embodiment, (B) is a side view which shows the lower part of the bottle container which concerns on 1st reference embodiment of this invention.

A bottle container 1 shown in these drawings is a plastic bottle container formed by biaxially stretching blow-molding a preform made of the above-described thermoplastic resin, and has a mouth portion 2, a shoulder portion 3, a trunk portion. 4 and bottom 5.
The mouth portion 2 is a portion that serves as a spout for the contents, and is opened and closed by a cap (not shown) that is screwed onto the outer peripheral thread.
The shoulder 3 is a substantially quadrangular frustum-shaped portion that extends downward from the mouth 2.
The bottom portion 5 is a portion extending inward from the lower end of the body portion 4 and functions as a bottom wall of the bottle container 1 and also functions as a leg portion that enables the bottle container 1 to stand on its own.

The trunk portion 4 is a substantially rectangular tube-shaped portion that extends downward from the lower end of the shoulder portion 3. It is preferable that the cross-sectional shape of the trunk | drum 4 shall be substantially rectangular and the short side L1 shall be 110 mm or less. In this way, even if the container has a capacity of 2000 to 3000 ml or more, it is possible to secure good refrigerator storage and to hold the bottle container 1 with one hand.
The body 4 may have a substantially square cross-sectional shape. In this case, if the one side is set to 110 mm or less, good refrigerator storage property and handling property can be secured.

A waist part 6 squeezed along the circumferential direction is formed in the middle part of the body part 4 in the vertical direction. The waist portion 6 functions as a reinforcing portion that imparts a necessary strength to the body portion 4.
In the present embodiment, at least one set of opposing surfaces of the body portion 4 is formed with gripping recesses 7 that are easy to handle when holding the bottle container 1 with one hand. The holding recess 7 is preferably formed on the long side when the cross-sectional shape of the body 4 is substantially rectangular. Also. An anti-slip portion 8 can be formed on the bottom surface or side wall surface of the holding recess 7 by a projection, a convex rib, a groove, a step, or the like.
However, when the bottle container 1 is packed in a box or stored in a refrigerator, the gripping recess 7 formed in the body 4 is hidden by the adjacent bottle container 1 or other stored items, and the bottle There is a possibility that the container 1 cannot be gripped when the container 1 is taken out.

As shown in FIGS. 1 to 4, in the bottle container 1 according to the first reference embodiment of the present invention, when the bottle container 1 is lifted to at least one pair of opposing surfaces in the shoulder portion 3 A recess 9 is formed. If it does in this way, the bottle container 1 can be easily lifted by holding | gripping the recessed part 9 for a finger hook formed in the shoulder part 3. FIG. In particular, the finger-hanging recess 9 is not hidden even in a boxed state or in a state of being stored in a refrigerator, so that it can be easily taken out from the box or the refrigerator. Further, since the finger-hanging concave portion 9 is not formed as a dedicated vertical surface but is formed using the shoulder portion 3, there is a disadvantage that the capacity of the bottle container 1 is greatly reduced or the cost is increased. Absent.

Although there is no restriction | limiting in the capacity | capacitance of the bottle container 1 which forms the recessed part 9 for fingering of this invention, The effect of this invention will become remarkable when it applies to the bottle container 1 of 900 ml or more.
Moreover, when the cross-sectional shape of the shoulder part 3 (torso part 4) is a substantially rectangular shape, it is preferable to form the finger hanging recessed part 9 in the long side. If it does in this way, even if it is a large sized container, a pair of finger hanging recessed part 9 can be hold | gripped with one hand.
Specifically, the horizontal distance L2 between the upper ends of the pair of finger hanging concave portions 9 is preferably 55 to 90 mm. In this way, when gripping the pair of finger hanging recesses 9, an appropriate distance is secured between the fingers to be gripped, so that gripping performance can be improved.
Further, the vertical distance L3 from the upper end of the finger hanging recess 9 to the upper end of the mouth 2 is preferably 35 to 80 mm. If it does in this way, since it becomes easy to hold | grip one set of recessed parts 9 for finger hooks, the raising of the bottle container 1 becomes easy.

The depth D1 of the finger hanging recess 9 is preferably 3 to 15 mm. In this way, the finger-hanging recess 9 is secured to a depth that allows the finger to be easily hooked, so that the certainty of the finger-holding with respect to the finger-hanging recess 9 is enhanced.
The maximum vertical width L4 of the finger hanging recess 9 is preferably 50 mm or less, more preferably 15 to 40 mm. In this way, a sufficiently large vertical width is ensured in the finger hanging concave portion 9 as compared with the finger, so that the finger hanging with respect to the finger hanging concave portion 9 becomes easy.
Further, the maximum left-right width L5 of the finger-hanging recess 9 is preferably 90 mm or less, more preferably 15 to 70 mm. If it does in this way, since a plurality of fingers can be hung on the finger hanging recess 9, the bottle container 1 can be easily lifted.
Further, the ratio L5 / L6 between the maximum left-right width L5 of the finger-hanging recess 9 and the left-right width (long side) L6 of the body 4 is preferably 0.7 or less, more preferably 0.25 to 0.6. is there. In this way, since the size of the finger hanging recess 9 can be adapted to the size of the bottle container 1, not only the gripping property of the finger hanging recess 9 is improved, but also the deterioration of the appearance of the bottle container 1 is prevented. it can.

In addition, the inclination θ1 with respect to the vertical axis of the surface of the shoulder 3 where the finger hanging recess 9 is formed is preferably −10 to 30 degrees. If it does in this way, since it becomes easy to hold | grip the recessed part 9 for finger hanging from upper direction, the raising of the bottle container 1 becomes still easier.
Also, when θ1 is in the range of −10 to −5 degrees, it is preferable to put a finger into the finger hanging recess 9 because the first joint of the finger is bent deeply and the finger hooking is further improved. Further, when θ1 is in the range of 15 to 30 degrees, when the bottle container 1 is packed in a case, a finger is put into the finger-hanging recess 9 from the gap between the bottle containers 1 arranged in close contact with each other above the finger-hanging recess 9. Further, it is preferable because it becomes easier to put.
In addition, in the finger hanging concave portion 9, the inclination θ2 of the side wall surface 10 formed on the mouth 2 side with respect to the horizontal axis is preferably 5 to 80 degrees. In this way, an angle at which the finger is easily hooked is ensured on the side wall surface 10 of the finger hanging recess 9, so that the certainty of the finger hooking with respect to the finger hanging recess 9 is improved.

The recess 9 for finger hooking of the first reference embodiment has a pentagonal shape (a shogi piece shape or a home base shape), and the upper two sides are inclined in a mountain shape by θ3 with respect to the horizontal axis. The side extends upward from both ends of the base toward the mouth, and is inclined inward by θ4 with respect to the vertical axis. Here, it is preferable that θ3 is in the range of 5 to 60 degrees and θ4 is also in the range of 0 to 60 degrees. In this way, the vertical and horizontal balance of the finger hanging concave portion 9 is improved, and thus the gripping property of the finger hanging concave portion 9 is improved. Not only improves, but also prevents the appearance of the bottle container 1 from deteriorating. When θ4 is set to 0 degree, the finger-hanging recess 9 is a home base type pentagon.
Further, an anti-slip portion 12 can be formed on the side wall surface 10 or the bottom surface 11 of the finger hanging concave portion 9 by a protrusion, a convex rib, a groove, a step, or the like. If it does in this way, the slip of the finger | toe in the recessed part 9 for finger rests can be suppressed, and the grip property of the recessed part 9 for finger rests can be improved.
Moreover, a shrink label can be attached to the bottle container 1 of the present invention. In this case, it is preferable that the upper end portion of the shrink label is prevented from coming off by using a step connecting the shoulder portion 3 and the trunk portion 4 so that the shrink label is not applied to the finger hanging recess 9.

As shown in FIG. 1 to FIG. 3 and FIG. 5, in the bottle container 1 according to the first reference embodiment of the present invention, the bottle container 1 is inclined to at least one pair of opposing surfaces in the lower end portion of the trunk portion 4. A second finger hook recess 13 is formed which serves as a finger hook when the contents are poured out from the mouth 2. In this way, when the bottle container 1 is tilted and the content is poured out from the mouth portion 2, the finger-hanging recess 9 is gripped and the second finger-hanging recess 13 formed at the lower end of the body 4 is By grasping with the other hand, the inclined bottle container 1 can be stably supported.
When the cross-sectional shape of the trunk | drum 4 is substantially rectangular, it is preferable to form the 2nd finger hanging recessed part 13 in the long side. If it does in this way, even if it is a large sized container, a pair of finger hanging recessed part 13 can be hold | gripped with one hand.
Specifically, the horizontal distance L7 between the lower ends of the pair of finger hanging concave portions 13 is preferably set to 55 to 100 mm. In this way, when gripping the pair of finger hanging recesses 13, an appropriate distance is secured between the fingers to be gripped, so that gripping performance can be improved.

The depth D2 of the second finger hanging recess 13 is preferably 3 to 15 mm. In this way, since the depth at which the finger is easily hooked is ensured in the finger hanging recess 13, the reliability of the finger hooking with respect to the finger hanging recess 13 is improved.
The maximum vertical width L8 of the second finger hanging recess 13 is preferably 50 mm or less, more preferably 15 to 40 mm. In this way, a sufficiently large vertical width is ensured in the finger hanging concave portion 13 as compared with the finger, so that the finger hanging with respect to the finger hanging concave portion 13 is facilitated.
In addition, the maximum left-right width L9 of the second finger hanging recess 13 is preferably 90 mm or less, more preferably 30 to 70 mm. In this way, since a plurality of fingers can be hung on the finger hanging recess 13, the bottle container 1 can be easily supported.
Further, the ratio L9 / L6 between the maximum left / right width L9 of the second finger hanging recess 13 and the left / right width (long side) L6 of the body portion 4 is preferably 0.7 or less, more preferably 0.25-0. .6. In this way, since the size of the finger hanging recess 13 can be adapted to the size of the bottle container 1, not only the gripping property of the finger hanging recess 13 is improved, but also the deterioration of the appearance of the bottle container 1 is prevented. it can.

Moreover, it is preferable that inclination (theta) 5 with respect to the vertical axis of the surface in which the 2nd fingering recessed part 13 is formed in the lower end part of the trunk | drum 4 shall be -10-30 degree. If it does in this way, since it becomes easy to hold | grip the recessed part 13 for finger hanging from the bottom part 5 side, the support of the inclined bottle container 1 becomes still easier.
Further, in the second finger hanging recess 13, the inclination θ6 of the side wall surface 14 formed on the bottom 5 side with respect to the horizontal axis is preferably 5 to 80 degrees. In this way, an angle at which the finger is easily hooked is ensured on the side wall surface 14 of the finger hanging recess 13, so that the certainty of the finger hooking with respect to the finger hanging recess 13 is improved.
In addition, although the front shape of the 2nd finger hanging recessed part 13 of this embodiment is an inverted trapezoid, it cannot be overemphasized that it can change into arbitrary shapes.
By the way, in this embodiment, although the example which provided the recessed part 7 for a grip was demonstrated, this recessed part 7 for a grip is not necessarily required, and even if it does not provide, it does not affect the effect of this invention especially.

[Second Reference Embodiment to Eighth Reference Embodiment]
Below, the bottle container which concerns on 2nd reference embodiment-8th reference embodiment of this invention is demonstrated with reference to FIGS. However, for common configuration with the first reference embodiment are denoted by the same reference numerals as in the first reference embodiment, hence the description of the first reference embodiment.
The bottle container 1 of the second reference embodiment to the sixth reference embodiment has the same overall shape as the bottle container 1 of the first reference embodiment, but the shape of the finger hanging recess 9 is different.

(A) in FIG. 6 is a plan view showing the upper portion of a bottle container according to the second reference embodiment of the present invention, (B) is a front view showing the upper portion of a bottle container according to the second reference embodiment of the present invention (C) is a side view which shows the upper part of the bottle container which concerns on 2nd reference embodiment of this invention.
The bottle container of the present embodiment has an upper side arc shape in which the upper side of the finger hanging concave portion 9 has an arc shape. In this embodiment, it is preferable that the radius R1 of the arc-shaped portion on the upper side is 20 to 40 mm, and the other portions are the same as the bottle container of the first reference embodiment. Also in the bottle container of the second reference embodiment configured as described above, the same effect as the bottle container of the first reference embodiment can be obtained.

Figure 7 (A) is a plan view showing the upper portion of a bottle container according to a third reference embodiment of the present invention, (B) is a front view showing the upper portion of a bottle container according to a third reference embodiment of the present invention (C) is a side view which shows the upper part of the bottle container which concerns on 3rd reference embodiment of this invention.
The bottle container of the present embodiment has a kamaboko shape in which the upper side and the left and right sides of the finger-hanging recess 9 are arcuate. In this embodiment, it is preferable that the radius R2 of the arc-shaped portion on the upper side is 20 to 40 mm, and the other portions are the same as the bottle container of the first reference embodiment. Also in the bottle container of the third reference embodiment configured in this way, the same effect as the bottle container of the first reference embodiment can be obtained.

FIG. 8A is a plan view showing the upper part of the bottle container according to the fourth reference embodiment of the present invention, and FIG. 8B is a front view showing the upper part of the bottle container according to the fourth reference embodiment of the present invention. (C) is a side view which shows the upper part of the bottle container which concerns on 4th reference embodiment of this invention.
In the bottle container of the present embodiment, the inclination of the upper side of the finger hanging recess 9 with respect to the horizontal axis is 0 degree, that is, θ3 in the first reference embodiment is 0 degree, and the others are the same as in the first reference embodiment. This is a trapezoidal square shape having four sides. Here, the left-right width L10 of the upper side of the finger-hanging recess 9 is preferably 20 to 50 mm. Even in this case, since a plurality of fingers can be hung on the finger hanging recess 9, the bottle container 1 can be easily lifted.
Further, the ratio L10 / L5 of the upper-side left-right width L10 and the lower-side left-right width L5 of the finger-hanging recess 9 is preferably 0.4 to 0.8. In this way, since the size of the finger hanging recess 9 can be adapted to the size of the bottle container 1, not only the gripping property of the finger hanging recess 9 is improved, but also the deterioration of the appearance of the bottle container 1 is prevented. it can.
Other parts are the same as those of the bottle container of the first reference embodiment. Also in the bottle container of the fourth reference embodiment configured in this way, the same effect as the bottle container of the first reference embodiment can be obtained.
In addition, as another example of the embodiment in which the finger-hanging concave portion 9 is a quadrangle, modifications such as a rectangle, a square, and a rhombus can be considered.

(A) in FIG. 9, a plan view of the upper portion of a bottle container according to a fifth reference embodiment of the present invention, (B) is a front view showing the upper portion of a bottle container according to a fifth reference embodiment of the present invention It is.
In the bottle container of the present embodiment, θ3 + θ4 of the recess 9 for fingering in the first reference embodiment is 90 degrees, and the other is a triangular shape having the same three sides as in the first reference embodiment. In this embodiment, the inclination θ7 with respect to the base (horizontal axis) of the hypotenuse in the finger hanging recess 9 is preferably 15 to 60 degrees. In this way, an angle at which the finger is easily hooked is ensured on the side wall surface 14 of the finger hanging recess 13, so that the certainty of the finger hooking with respect to the finger hanging recess 13 is improved. Other parts are the same as those of the bottle container of the first reference embodiment. Also in the bottle container of the fifth reference embodiment configured in this way, the same effect as the bottle container of the first reference embodiment can be obtained.
In addition, it is preferable that the triangular shape of the finger-hanging concave portion 9 is an isosceles triangle (including a regular triangle) from the viewpoint of ease of gripping and appearance.

(A) in FIG. 10 is a plan view showing the upper portion of a bottle container according to a sixth reference embodiment of the present invention, (B) is a front view showing the upper portion of a bottle container according to a sixth reference embodiment of the present invention 11A is a plan view showing the upper part of the bottle container according to the seventh reference embodiment of the present invention, and FIG. 11B is a front view showing the upper part of the bottle container according to the seventh reference embodiment of the present invention. FIG. 12 and FIG. 12 are sectional views showing the upper part of the bottle container according to the eighth reference embodiment of the present invention.
As shown in these drawings, the finger resting recess 9 of the sixth reference embodiment is round (including an ellipse, an ellipse, etc.). Further, the bottle container 1 of the seventh reference embodiment has a substantially square cross section, and has a heptagon-shaped finger-hanging recess 9 formed on two opposing surfaces of the shoulder 3. Even if the finger-hanging recess 9 is formed in this manner, substantially the same effect as that of the first reference embodiment can be exhibited. Also in the sixth and seventh reference embodiments, it is preferable to set L1 to L6, θ1, and θ2 in the same range as in the first reference embodiment.

The bottle container 1 of the eighth reference embodiment shown in FIG. 12 is different from the above-described embodiment in that a protrusion 15 continuous to the side wall surface 10 on the mouth 2 side is provided on the upper part of the finger hanging recess 9. Yes. If it does in this way, the slip at the time of holding | gripping the recessed part 9 for fingering can be prevented reliably, and the grip property of the recessed part 9 for fingering can be improved.

The form of the finger-hanging recess 9 is not limited to that of the above-described embodiment, and may be a form as shown in FIGS. FIGS. 13A to 13F respectively show a plan view and a cross-sectional view of the finger hanging recess 9.
Here, FIG. 13 (A) is a figure in which the bottom surface of the finger hanging concave portion 9 is gradually deepened, (B) and (C) are multi-level bottom surfaces, and (D) is a distance from the side wall surface. And a protrusion is provided on the bottom surface. Further, the inclination of the side wall surface of the finger hanging concave portion 9 can be gradually changed as shown in (E), or can be formed in an arc shape as shown in (D). Furthermore, as shown in (F), the opening of the finger-hanging recess 9 may be a pentagon, and the bottom surface may be a triangle.
Furthermore, although not shown, the bottom surface of the finger hanging concave portion 9 is not limited to a flat surface, and various three-dimensional shapes such as an inwardly projecting spherical shape may be appropriately formed.

[ First embodiment]
Below, the bottle container which concerns on 1st embodiment of this invention is demonstrated with reference to FIGS. However, the same code | symbol is attached | subjected about the same structure as each embodiment mentioned above, and description of each embodiment is used.
The bottle container 1 of the first embodiment has the same overall shape as the bottle container 1 of the first reference embodiment. However, the volume of the waste container is reduced by reducing the volume of the bottle container 1 during disposal after use. In order to make it easier, the folding portions FL1 to FL3 are provided at predetermined positions with respect to the finger-hanging concave portions 9 and 13, thereby making it easier to crush the shoulder portion 3 of the bottle container 1 and the lower end portion of the trunk portion 4. Is different.

Figure 14 is a front view of a bottle container according to a first embodiment of the present invention, FIG. 15 is a side view of a bottle container according to a first embodiment of the present invention, a bottle according to the first embodiment of FIG. 16 the present invention The front view which shows the upper part of a container, FIG. 17 is a front view which shows the lower part of the bottle container which concerns on 1st embodiment of this invention.
In these drawings, the part where the folding line is provided is shown surrounded by a chain line.

The bottle container 1 of the present embodiment is similar to the first reference embodiment in that the front shape is a pentagon, and a pair of finger-hanging recesses 9 having apexes 9a on the mouth portion 2 side is provided on the front side of the shoulder portion 3. And the back side. Then, the first fold line FL1 is located on the surface located between each finger hanging concave portion 9 and the mouth portion 2 so as to be located on a straight line passing through the vertex 9a on the mouth 2 side of the finger hanging concave portion 9. Is formed. As shown in the figure, the fold line FL1 is preferably formed so as to extend substantially in the center in the width direction of the surface located between the finger-hanging recess 9 and the mouth 2.
In this way, when the volume of the bottle container 1 is reduced during the disposal process after use, when the surface of the shoulder 3 on which the finger hanging recess 9 is formed is pressed from the outside, the finger hanging recess 9 and the mouth portion The shoulder 3 is crushed while the surface located between the two is bent along the fold line FL1.

  The shoulder 3 of the square bottle container such as the bottle container 1 of the present embodiment is generally formed in a substantially quadrangular pyramid shape and is relatively rigid and difficult to crush, as in this embodiment. This makes it easier to crush the shoulder 3. In particular, by forming the fold line FL1 so as to be positioned on a straight line passing through the apex 9a on the mouth part 2 side of the finger hanging concave part 9, in other words, the mouth part of the finger hanging concave part 9 on the extension line of the folding line FL1. By positioning the apex 9a on the second side, stress is easily concentrated on the fold line FL1, and the shoulder portion 3 is easily bent along the fold line FL1.

  Further, in the present embodiment, the corners 9b located on the left and right sides of the finger hanging recesses 9, preferably from the vicinity of the corners 9b located symmetrically on the left and right of the bottom side of the finger hanging recesses 9, respectively, as shown in the figure. A second fold line FL2 extending in the left-right direction is formed. By doing in this way, the shoulder part 3 comes to be crushed while bending along both the first fold line FL1 and the second fold line FL2, and the shoulder part 3 is more easily crushed. Become.

Moreover, also in the bottle container 1 of this embodiment, the 2nd finger-hanging recessed part 13 is formed in the lower end part of the trunk | drum 4 similarly to 1st reference embodiment. The corners 13a located on the left and right sides of the finger-hanging recesses 13, preferably from the vicinity of the corners 13a symmetrically positioned on the left and right sides of the upper side of the finger-hanging recesses 13, as shown in FIG. An extending third fold line FL3 is formed. By doing in this way, the lower end part of the trunk | drum 4 can be crushed while bending along the fold line FL3.

  As described above, the bottom portion 5 functions as a bottom wall of the bottle container 1 and functions as a leg portion that enables the bottle container 1 to be independent, and has higher rigidity than other portions. For this reason, although the lower end part of the trunk | drum 4 which adjoins the bottom part 5 is also a site | part which is hard to crush, if it carries out like this embodiment, it can make it easy to crush the lower end part of the trunk | drum 4. FIG.

In the present embodiment, the entire bottle container 1 can be more easily crushed by forming the fourth fold line FL4 on both sides of the bottle container 1 as shown in FIG. become.
As shown in the figure, the fourth fold line FL4 formed on the side surface of the bottle container 1 has a straight line portion extending vertically in the center in the width direction of the side surface of the body portion 4, and a second fold line FL2 formed on the shoulder portion 3. An upper Y-shaped portion that is divided into two forks on the extension line of the upper portion and a lower portion that is divided into two forks on the extension line of the third fold line FL3 formed at the lower end portion of the trunk portion 4 and that goes to the bottom portion 5 It is preferable to consist of a Y-shaped part. In such a fourth fold line FL4, each of the upper and lower Y-shaped portions is divided into two branches on the extension lines of the second fold line FL2 and the third fold line FL3, so that these fold lines Accordingly, the side surface of the bottle container 1 is easily bent, and the bottle container 1 can be crushed more easily.

  As described above, in the present embodiment, when forming the fold lines FL1 to FL3, the positions of the fold lines FL1 to FL3 are formed on the finger-hanging recesses 9 and 13 so that stress is easily concentrated on the fold lines FL1 to FL3. On the other hand, the shoulder portion 3 and the lower end portion of the trunk portion 4 are bent along the fold lines FL1 to FL3 so as to be easily crushed. And by forming the 4th fold line FL4 in the both sides | surfaces of the bottle container 1 with these fold lines FL1-FL3, it has enabled it to crush the bottle container 1 whole more easily now. .

Here, the fold lines FL <b> 1 to FL <b> 4 can be formed as, for example, ridge lines of ridges extending on the surface of the bottle container 1, or valley bottom lines of the ridges, It need not be identifiable. What is necessary is just to be able to guide so that the predetermined site | part of the bottle container 1 bends, and it may be formed by the intermittent continuation of the ridgeline of a protruding item | line, the recessed valley bottom line, or these mixed.
Further, the apex 9a on the mouth portion 2 side of the finger hanging recess 9 is formed to be somewhat angular as in the first reference embodiment, as in the second reference embodiment and the third reference embodiment. Further, it may be formed as the topmost part of the arcuate upper side (the part closest to the mouth part 2).

[ Second Embodiment]
Next, a bottle container according to a second embodiment of the present invention will be described with reference to FIGS. However, the same code | symbol is attached | subjected about the same structure as each embodiment mentioned above, and description of each embodiment is used.
The bottle container 1 of the second embodiment is a large-sized container having a capacity of 4000 ml. Like the first embodiment, the bottle container 1 is provided with fold lines FL1 to FL3 at predetermined positions with respect to the finger hanging recesses 9 and 13. While making the shoulder part 3 of the container 1 and the lower end part of the trunk | drum 4 easy to crush, by forming the 4th fold line FL4 in the both sides | surfaces of the bottle container 1, the bottle container 1 whole is made. It can be crushed more easily.

FIG. 18 is a front view of a bottle container according to the second embodiment of the present invention, and FIG. 19 is a side view of the bottle container according to the second embodiment of the present invention. Also in these drawings, the portion where the folding line is provided is shown surrounded by a chain line.

  As in the third embodiment, the bottle container 1 of the present embodiment has a semi-cylindrical shape in which the upper side and the left and right sides of the finger hanging recess 9 are arcuate, but more specifically on the bottom side of the finger hanging recess 9. Specifically, a finger storage recess having a convex curved surface is formed toward the inside of the container so as to cut out the side wall surface on the bottom side of the finger hanging recess 9.

By forming such a finger storage recess, when gripping the finger hanging recess 9, in addition to the thumb having the finger hanging recess 9 and the index finger or the middle finger, other fingers such as the middle finger or ring finger are used. By placing one finger close to the finger having the finger-hanging recess 9 and placing it in the finger storage recess, a force can be applied to the other one finger. And by making the shape of a finger | toe accommodation recessed part into a convex curved surface toward the container inward, it can accommodate so that the abdominal part of a finger may be wrapped.
Thereby, the bottle container 1 of this embodiment becomes easy to hold | grip the recessed part 9 for fingering, and can hold | grip the recessed part 9 for fingering and can raise the bottle container 1 more easily.

Although the present invention has been described with reference to the preferred embodiment, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. .
In the present invention, the individual configurations included in the above-described embodiments may be appropriately combined.

  The present invention can be applied to a container such as a plastic bottle having a mouth portion, a shoulder portion, a trunk portion, and a bottom portion. In particular, it is suitable for containers that require good removal even in a boxed state or in a state of being stored in a refrigerator.

Claims (11)

The mouth,
A shoulder extending downward from the lower end of the mouth,
A rectangular tube-shaped trunk extending downward from the lower end of the shoulder;
A bottom portion located at the lower end of the trunk, and a container comprising:
On at least one pair of opposing surfaces in the shoulder portion, a finger-hanging recess that is a finger-hook when the container is lifted is formed ,
The finger hanging recess has a vertex on the mouth side;
A first fold line is formed on a surface located between the finger hanging concave portion and the mouth portion so as to be located on a straight line passing through the apex,
The finger hanging recess has corners located on the left and right,
Container to the vicinity of the corner portion, characterized that you have a second fold line extending toward the left and right are formed.   The container according to claim 1, wherein a horizontal distance between upper ends of the pair of finger hanging concave portions is 55 to 90 mm.   The container according to claim 1 or 2, wherein a vertical distance from an upper end of the finger hanging concave portion to an upper end of the mouth portion is 35 to 80 mm.   The container according to any one of claims 1 to 3, wherein a depth of the finger hanging concave portion is 3 to 15 mm.   The container according to any one of claims 1 to 4, wherein a vertical width of the finger hanging concave portion is 50 mm or less.   The container according to any one of claims 1 to 5, wherein a left-right width of the finger hanging concave portion is 90 mm or less.   The container according to any one of claims 1 to 6, wherein in the shoulder portion, an inclination of a surface on which the finger hanging concave portion is formed with respect to a vertical axis is -10 to 30 degrees.   The container according to any one of claims 1 to 7, wherein, in the finger hanging concave portion, an inclination of a side wall surface formed on the mouth side with respect to a horizontal axis is 5 to 80 degrees. The container according to any one of claims 1 to 8 , wherein a finger storage concave portion having a convex curved surface is formed on the bottom side of the finger hanging concave portion toward the inside of the container. 2. A second finger-hanging recess is formed on at least one pair of opposed surfaces of the lower end portion of the body portion, the second finger-hanging recess serving as a finger-hook when the container is inclined and the contents are poured out from the mouth portion. 10. The container according to any one of 9 . The second finger hanging recess has corners located on the left and right,
The container according to claim 10 , wherein a third fold line extending from the vicinity of the corner portion toward the left and right is formed.

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