JP4314945B2 - container - Google Patents

Description

  The present invention relates to a container, and more particularly, to a container having improved gripping ability of a plastic bottle container having a large capacity.

Plastic bottle containers are easy to mold, suitable for mass production, and have excellent properties such as high mechanical strength and light weight. Therefore, plastic bottle containers are widely used as containers for filling various liquids. It's being used.
Recently, in particular, 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 capacity of about 2 liters is used. Regarding the shape of the plastic bottle container, a rectangular one having a rectangular cross-sectional shape has been conventionally used in consideration of refrigerator storage and ease of holding. And in order to provide conveyance intensity | strength (longitudinal compressive strength), the waist part is formed in the substantially central part perimeter of the longitudinal direction of a container.

  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, for example, 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 slippage may occur between the hand holding the bottle container and the bottle container, which may make it difficult to lift the bottle container. Moreover, since the bottle container has a large waist, there is a problem that it is difficult to hold it with one hand.

  In response to this problem, when the bottle container body is provided with a gripping recess (gripping part) and the bottle container is gripped with one hand, the gripping property of the bottle container is improved by hooking a finger on the recess. Containers have been proposed (see, for example, Patent Documents 1 and 2).

On the other hand, due to the trend toward lighter containers due to resource saving, in recent years, in particular, the thickness of the containers has become thinner and the strength of the bottle containers has decreased overall. For this reason, the rigidity in the waist part and the restoration property against deformation are remarkably reduced, and the container tends to be deformed when the container is gripped, and the container tends to be more difficult to hold.
JP-A-8-230856 JP-A-8-310521

  In view of the above problems, the present invention has an object to provide a container that is stable and easy to lift even when the container is lightened.

  In order to solve this problem, as a result of intensive research, the inventors of the present invention have found that the first groove that is deeply recessed inward of the container at a desired position within the range from approximately the center to the lower part of the trunk of the container. It has been found that the stability when the container is gripped can be improved by forming a gripping portion having a second groove shallower than the first groove on both sides in the circumferential direction.

That is, the container of the present invention has a groove-like shape having a mouth-side inclined surface, a vertical surface, and a bottom-side inclined surface on at least one pair of opposing surfaces in a range from the substantially vertical center to the lower side of the container body. a container provided with a grip portion, with the circumferential direction central portion of the grip portion and the first groove, in the circumferential direction on both sides of the first groove to form a shallower than said Ichimizo second groove, said first A recess that is recessed inward of the container is formed on both or either one of the mouth-side slope and the bottom-side slope of the groove .
In this way, by forming the gripping portions having grooves with different depths, it is possible to improve the fit when a finger is attached and to secure the gripping of the container. In particular, a finger fits more by forming a recess recessed inward of the container on both or either of the mouth side slope and the bottom side slope of the first groove.
In addition, these holding parts which have a 1st groove | channel and a 2nd groove | channel can also be formed in two sets of surfaces which oppose.

In the container of the present invention, the depth d1 of the first groove is 3 to 12 mm, and the difference d1-d2 between the depth d1 of the first groove and the depth d2 of the second groove is 1 to 9 mm. Can If it does in this way, when a finger is attached to a grasping part, since a belly of a finger fits to a grasping part, a sense of stability when a container is lifted can be improved. Also, the difference in depth between the first groove and the second groove, that is, by providing a step between the two grooves, when the container is tilted to lift the container and pour its contents, a finger is caught on this step. In addition, it is possible to prevent the occurrence of finger slipping in the circumferential direction of the container.

The container of the present invention, Ri said first Mizonokuchi portion side inclined surface and the vertical plane and the bottom side radius R1 of the contact circle tangent to the three aspects of the slope is set to be 10～22Mm, the second Mizonokuchi portion The radius R2 of the tangent circle in contact with the three surfaces of the inclined surface, the vertical surface, and the bottom-side inclined surface may be 8 to 20 mm . If you to this, grip the containers, when the deformed gripping portion by the force, by its repulsive force, the grip portion is moderately compress the thumb and middle finger. Therefore, a feeling of fit increases and the sense of stability when the container is lifted can be further improved.
In the container of the present invention, the width d3 in the height direction of the first groove and the width d4 in the height direction of the second groove may be 7 to 15 mm, respectively . If it does in this way, since the size of a grasping part and a finger fits, the grasping nature of a container can be improved more.

Moreover, the container of this invention is good also as a structure which connects the said 1st groove | channel and 2nd groove | channel via an inclined wall. If it does in this way, there will be no sudden level difference between the 1st slot and the 2nd slot, and even if it grasps a grasping part strongly, a finger will not feel pain.

Moreover, the container of this invention is a cross-sectional oblong bottle, Comprising: It is good also considering the length L1 of the short side as 60-110 mm.
In the container of the present invention, the container may be a square bottle having a square cross section, and the length L1 (= L2) of one side thereof may be 60 to 110 mm.
That is, the container of the present invention is particularly suitable for a container having a large capacity and a size that can be grasped with one hand.

In the container of the present invention, a plurality of grooves having a predetermined length are formed in the vertical direction from approximately the center in the vertical direction to the lower part of the body surface in which the grip portion of the transverse or square bottle is not formed. It is good also as the structure which carried out.
If it does in this way, the strength fall accompanying thinning of a container can be controlled and the repulsive force when a container is grasped can be improved. As a result, even if the container is dented and deformed when the container is gripped, if the container is released, the deformed part is restored to its normal shape even if it is reliably restored.

Moreover, the container of this invention is good also as a structure which formed the convex rib of the vertical direction in at least one surface of the said 1st groove | channel.
In this way, when the container is tilted to lift the container and pour its contents, the fingers are caught on this rib, so that it is possible to prevent finger slippage in the circumferential direction of the container.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a weight-reduced container, when it hold | grips with one hand, it can provide a container which is stable and easy to lift.

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

[First embodiment]
1A and 1B are schematic views of a plastic bottle container according to the first embodiment, wherein FIG. 1A is a front view, FIG. 1B is a partially cut side view, and FIG. 1C is a cross-sectional view taken along line AA in FIG. is there.
The plastic bottle container 10 is a bottle container having a square cross section in the circumferential direction, and has a mouth portion 2, a shoulder portion 3, a trunk portion 4 and a bottom portion 5. The body part 4 of the bottle container 10 is formed by two sets of mutually opposing body surfaces 41.
A waist portion 6 squeezed to a smaller diameter than the body portion is provided over the entire circumference at a substantially central portion in the longitudinal direction of the body portion 4.

The grip portion 7 is provided on the waist portion 6 at a substantially central position in the width (circumferential) direction of the body surface 41, and is inclined toward the mouth side of the bottle container 10, and a vertical surface formed vertically. 72 and a bottom side inclined surface 73 inclined toward the bottom side of the bottle container 10.
Here, the first groove 74 is deeply recessed inward of the container 10, and the second groove 76 formed from the first groove 74 via the inclined wall 75 is formed shallower than the first groove 74. .
Thus, by forming the first groove 74 that is deeply recessed and the second groove 76 that is shallower than the first groove 74, it is possible to improve the fit when a finger is attached. In addition, when the difference d1-d2 between the depth d1 of the first groove 74 and the depth d2 of the second groove 76 is small, the fit can be improved without interposing the inclined wall 75.

  In addition, in this embodiment, although the holding part 7 is formed in the state which overlapped with the waist part 6, it is needless to say that the holding part 7 may be formed separately from the waist part 6, and the waist part. It is also possible to form the gripping part of the present invention in a container without six.

In the present embodiment, the depth d1 (see FIG. 1C) of the first groove 74 is 3 to 12 mm, and the difference d1− between the depth d1 of the first groove 74 and the depth d2 of the second groove 76 is made. d2 is preferably 1 to 9 mm. When the depth d1 of the first groove 74 is less than 3 mm, the finger pad is not sufficiently hung on the first groove 74, so that only the fingertip is gripped, which may deteriorate the stability when gripped. On the other hand, when the depth d1 of the first groove 74 exceeds 12 mm, the thickness near the mouth side slope of the first groove 74 becomes thick at the time of forming the container. May become too thin.
When the difference d1-d2 between the depth d1 of the first groove 74 and the depth d2 of the second groove 76 is less than 1 mm, when the container 10 is gripped and tilted (at the time of dispensing), the finger and the gripping portion 7 There is a risk of slippage between them. On the other hand, if the difference in depth d1-d2 exceeds 9 mm, the thickness of the first groove 74 near the mouth side slope becomes thicker when forming the container. May be too thin.

  The radius R1 of the contact circle 81 in contact with the three surfaces of the mouth-side inclined surface 71, the vertical surface 72, and the bottom-side inclined surface 73 of the first groove 74 in the grip portion 7 is preferably 10 to 22 mm, and preferably 14 to 18 mm. It is particularly preferred. By setting the radius R1 of the contact circle 81 within this range, the thumb fits the first groove 74 appropriately. When the radius R1 is less than 10 mm, the finger (interjoint portion = finger pad) may be pressed against the mouth side slope 71 and the bottom side slope 73, and there is a risk of pain, and the finger pad tip is sufficiently in the groove. Since the depth is not reached, there is a possibility that the gripping property may be lowered. When the radius R1 exceeds 22 mm, the groove is too large, and the support position of the finger may be shifted at the time of dispensing, which may become unstable.

  For the same reason, it is preferable that the radius R2 of the contact circle 82 in contact with the three surfaces of the mouth side slope 71, the vertical surface 72, and the bottom side slope 73 of the second groove 76 is 8 to 20 mm, and is 12 to 16 mm. It is particularly preferred.

  The width in the height direction (container longitudinal direction) of the first groove and the second groove of the gripping part 7, that is, the widths d3 and d4 (not shown) of the vertical surface 72 are preferably 7 to 15 mm, It is especially preferable that it is 10-12 mm. When the widths d3 and d4 of the vertical surface 72 are less than 7 mm, the finger may be pressed by the mouth side inclined surface 71 and the bottom side inclined surface 73 to feel pain, and the fingertip reaches a sufficient depth in the groove. Therefore, the gripping property may be reduced. When the widths d3 and d4 exceed 15 mm, the width is too wide, and the support portion of the finger may be displaced at the time of extraction, which may cause instability.

The short side length L1 of the container 10 is preferably 60 to 110 mm, and particularly preferably 70 to 90 mm.
Further, when the container 10 is a square bottle having a square cross section, that is, when L1 and L2 are substantially equal, one side thereof is preferably 60 to 110 mm. When L1 is less than 60 mm, the trunk of the container 10 is not large, and it is easy to hold the container 10 without providing a gripping portion, so the effect of the present invention cannot be realized. On the other hand, when L1 exceeds 110 mm, the circumference of the container 10 becomes too large to be gripped with one hand.
That is, the container of the present invention is particularly suitable for improving gripping ability of a large capacity bottle (volume of 1 to 3 liters).

In the container 10 of the present embodiment, a plurality of longitudinal ribs 77 are formed on the vertical surface 72 of the first groove 74. By providing the convex rib 77, when the container 10 is lifted and the container 10 is tilted to pour its contents, a finger is caught on the rib 77, thereby preventing finger slippage in the circumferential direction of the container. Can do.
In FIG. 1A, five vertical convex ribs 77 are provided. However, the present invention is not limited to this, and if one or more ribs 77 are provided, an anti-slip effect is exhibited. be able to.
Further, the rib 77 may be provided not only on the vertical surface 72 but also on the mouth side slope 71 and / or the bottom side slope 73. Further, the vertical surface 72, the mouth side slope 71 and / or the bottom portion provided on any one of the vertical surface 72, the mouth side slope 71 and / or the bottom side slope 73 provided on the two opposing surfaces. The rib 77 may be provided only on the side slope 73.

  Further, the mouth side slope 71 and the bottom side slope 73 may be formed with recesses 71a and 73a recessed inward of the container. If such recessed parts 71a and 73a are formed, a finger | toe fits much more. The recesses 71 a and 73 a may be formed on either the mouth side slope 71 or the bottom side slope 73.

[Second Embodiment]
2A and 2B are schematic views of a plastic bottle container according to the second embodiment, wherein FIG. 2A is a front view, FIG. 2B is a partially cut side view, and FIG. 2C is a cross-sectional view taken along line AA in FIG. is there.
In addition, description of the part which is common in 1st embodiment mentioned above is abbreviate | omitted.
In the plastic bottle container 20, two V-shaped grooves 78 a and 78 a having a predetermined length are formed at a substantially central portion in the longitudinal direction of the waist portion of the body surface on which the grip portion 7 is not formed. A curved V-shaped groove 78b that connects the upper portions of the grooves 78a and 78a is formed.
When the grooves 78a, 78a, 78b are formed in this way, it is possible to suppress a decrease in strength due to the thinning of the container and to improve the repulsive force against deformation.
The grooves 78a, 78a, 78b are not limited to the V shape, and may be, for example, a U shape.

  In addition, two V-shaped grooves 79a and 79a that pass through the inclined wall 75 between the first groove 74 and the second groove 76 of the grip portion 7 in the vertical direction are formed, and the two grooves 79a. , 79a is formed with a curved V-shaped groove 79b for connecting the upper portions. The two grooves 79 a and 79 a extend from the vertical surface 72 to the bottom-side inclined surface 73 and are inclined toward the center line in the width direction of the bottle container 20. When these two grooves 79a and 79a are provided, the bending of the body surface that occurs when the first groove 74 is gripped occurs in the direction along the grooves 79a and 79a, that is, on the center line in the width direction of the container 20. . Then, the folds generated along the grooves 79a and 79a at both ends of the gripping part merge near the center line in the width direction of the bottle container 20 and cancel each other, so that it is easy to return elastically.

Therefore, even if the bottle container is deformed by the pressing force, the deformation is hardly permanent, and the reduction in the repulsive force of the bottle container against the deformation is small. Thereby, even if it uses repeatedly, stability when holding the bottle container 20 does not change.
Moreover, when the bottle container 20 is lifted and the bottle container 20 is tilted to pour its contents, a finger is caught in the V-shaped groove 79a, thereby providing an anti-slip effect in the circumferential direction of the grip portion 7. be able to.
The grooves 79a and 79b are not limited to the V shape, and may be, for example, a U shape.

[Third embodiment]
FIG. 3 is a schematic view of a plastic bottle container according to the third embodiment, in which (a) is a front view, (b) is a partially cut side view, and (c) is a cross-sectional view taken along line AA in (a). is there.
In addition, description of the part which is common in 1st and 2nd embodiment mentioned above is abbreviate | omitted.
In this plastic bottle container 30, a recess 9 is provided up to a predetermined position on the body surface 41 connected from the lower part of the gripping portion 7, and V-shaped grooves 79 a and 79 a are provided on both sides of the recess 9. It is formed. By comprising in this way, when the holding | grip part 7 bends inward of a container, it will become easy to restore | restore to an original shape.

  The plastic bottle container of the first to third embodiments described above can be formed by a normal bottle container forming means. For example, the preform can be obtained by stretch blow molding.

The plastic material forming the bottle container is, for example, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, or a copolymer thereof, a blend of these resins or other resins. In particular, ethylene terephthalate-based thermoplastic polyesters such as polyethylene terephthalate are preferably used.
Further, acrylonitrile resin, polypropylene, propylene-ethylene copolymer, polyethylene and the like can also be used.

  The present invention is not limited to the above-described embodiment. For example, the shape of the container can be a cup shape, and the container is not limited to a plastic one. The present invention can also be applied to a container made of a metal material, a paper-based material, or a glass material.

  According to the present invention, even if the container is lightened, it is possible to provide a container that is stable and easy to lift when held with one hand.

It is the schematic of the plastic bottle container of 1st embodiment, (a) is a front view, (b) is a partially cutaway side view, (c) is the sectional view on the AA line in (a). It is the schematic of the plastic bottle container of 2nd embodiment, (a) is a front view, (b) is a partially cutaway side view, (c) is the sectional view on the AA line in (a). It is the schematic of the plastic bottle container of 3rd embodiment, (a) is a front view, (b) is a partially cutaway side view, (c) is the sectional view on the AA line in (a).

Explanation of symbols

10, 20, 30 Plastic bottle container 2 Mouth part 3 Shoulder part 4 Body part 41 Body surface 5 Bottom part 6 Waist part 7 Grip part 71 Mouth side slope 72 Vertical surface 73 Bottom side slope 74 First groove 75 Inclined wall
76 Second groove 77 Convex rib 78 Groove 79 Ridge line 81, 82 Contact circle 9 Dimple

Claims (10)

In a container provided with a groove-shaped gripping part having a mouth side slope, a vertical face and a bottom face slope on at least one pair of opposing faces in a range from the center in the longitudinal direction to the lower part of the container body,
A circumferential central portion of the grip portion is a first groove, and on both sides of the first groove in the circumferential direction, a second groove shallower than the first groove is formed,
A concave portion recessed inward of the container is formed on both or either one of the mouth side slope and the bottom side slope of the first groove . The container according to claim 1, wherein the depth d1 of the first groove is 3 to 12 mm, and the difference d1-d2 between the depth d1 of the first groove and the depth d2 of the second groove is 1 to 9 mm. 3. The container according to claim 1, wherein a radius R <b> 1 of a contact circle in contact with the three surfaces of the mouth side slope, the vertical surface, and the bottom side slope of the first groove is 10 to 22 mm. The container according to any one of claims 1 to 3, wherein a radius R2 of a contact circle in contact with three surfaces of the mouth side slope, the vertical surface, and the bottom side slope of the second groove is 8 to 20 mm. The container according to any one of claims 1 to 4, wherein a width d3 in the height direction of the first groove and a width d4 in the height direction of the second groove are 7 to 15 mm, respectively. The container according to any one of claims 1 to 5, wherein the first groove and the second groove are connected via an inclined wall. The container according to any one of claims 1 to 6, wherein the container is a transverse section rectangular bottle, and a length L1 of a short side thereof is 60 to 110 mm. The said container is a cross-sectional square square bottle, Comprising: The length L1 (= L2) of the one side is 60-110 mm, The container as described in any one of Claims 1-7 . 9. The groove according to any one of claims 7 to 8, wherein a plurality of grooves having a predetermined length are formed in a longitudinal direction from substantially the center in the longitudinal direction to the lower part of the body surface of the bottle having a cross section of a rectangular or square bottle not forming a grip portion. container according to one paragraph or. The container as described in any one of Claims 1-9 which formed the convex rib of the vertical direction in at least one surface of the said 1st groove | channel.

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