JP2018083654A - Synthetic resin-made container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a synthetic resin container in which the inner pressure resistance strength of a griping recess provided in a container body section in order to facilitate gripping the container, is increased more than that in the prior art .SOLUTION: A synthetic resin container comprises: a recessed groove 61 extending along a height direction in the panel portion 60 included in a griping recess 6; and multiple protruding ribs 62 extending along a direction intersecting the recessed groove 61, and laterally separated across respective discontinuous parts in the recessed groove 61.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a synthetic resin container in which a pair of gripping recesses for facilitating gripping of a container is provided so as to face the side surface of the container body.

  Conventionally, a synthetic resin produced by producing a bottomed cylindrical preform by injection molding or compression molding using a thermoplastic resin such as polyethylene terephthalate and then molding the preform into a bottle by biaxial stretch blow molding Made containers are used in a wide range of fields as containers containing various beverages and various seasonings.

  Also, in this type of container, a container with a relatively large capacity becomes heavier when the contents are filled, so the user inserts his / her finger when lifting or carrying it. A pair of gripping recesses that are recessed inward of the container are provided so as to face the side surface of the container body so that the container can be easily gripped by withstanding its weight.

  In providing such a holding recess in the container body, for example, Patent Document 1 discloses that the recess is inverted so that the so-called buckling that protrudes outward from the container is reversed. Reinforcing ribs (convex ribs) that reinforce and make it easier to grip with the fingertips are provided transversely in the recesses, and the reinforcing ribs located near the longitudinal center of the recesses are not only from the bottom surface of the recesses, It has been proposed to increase the internal pressure strength of the recess by providing it so as to rise from both side surfaces of the recess.

Japanese Patent Laid-Open No. 2007-119038

  By the way, in this type of container, attempts have been made to make the container as thin as possible in order to reduce its weight and reduce the cost by reducing the amount of resin used. In recent years, the demand for such thinning has become more and more severe, and the thinner the container, the more ingenuity is required to ensure strength.

  For this reason, in patent document 1, it is trying to raise the internal pressure strength of a recessed part by providing a convex rib so that it may stand up not only from the bottom face of a recessed part but from the both sides | surfaces of a recessed part. However, when a convex rib is provided in a transverse shape in the holding concave portion, the strength against the internal pressure becomes insufficient as the thickness is reduced, and this convex rib becomes a starting point, for example, the vertical direction of the concave bottom surface. The central part is deformed so as to be bent, and buckling occurs, and there is a limit to increasing the resistance to internal pressure.

  The present invention has been made in view of the circumstances as described above, and the internal pressure strength of the holding concave portion provided in the container body to make it easier to hold the container has been increased more than before. The purpose is to provide a synthetic resin container.

  The synthetic resin container according to the present invention is a synthetic resin container in which a pair of gripping recesses recessed inward of the container are provided facing the side surfaces of the container body, and the gripping recesses are vertically long. A panel portion defined by the contour of the groove, the panel portion including a groove extending along a height direction, and a plurality of convex ribs extending along a direction intersecting the groove. The convex rib has a discontinuous portion on the concave groove and is divided and arranged on the left and right.

  According to the present invention, the panel portion included in the holding recess includes a recessed groove provided so as to extend along the height direction and a discontinuous portion on the recessed groove and is divided into left and right parts. With the combination with the convex ribs provided as described above, the internal pressure resistance of the gripping concave portion can be increased as compared with the conventional case.

It is explanatory drawing which shows the outline of the synthetic resin containers which concern on embodiment of this invention, (a) is a top view, (b) is a side view. It is AA sectional drawing of FIG.1 (b).

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

As an example of the synthetic resin container according to this embodiment, a container 1 having a capacity of 2.7 L is shown in FIG.
FIG. 1A is a plan view of the container 1, and FIG. 1B is a side view of the container 1. FIG. 2 is a cross-sectional view taken along the line AA of FIG.

  A container 1 shown in FIG. 1 is made of a bottomed cylindrical preform by injection molding or compression molding using a thermoplastic resin. 3 is molded into a predetermined container shape including a body portion 4 and a bottom portion 5.

  In molding the container 1 in this manner, any resin capable of biaxial stretch blow molding can be used as the thermoplastic resin. Specifically, blended with polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, amorphous polyarylate, polylactic acid, polyethylene furanoate or copolymers thereof, these resins or other resins Things can be used. In particular, an ethylene terephthalate thermoplastic polyester such as polyethylene terephthalate is preferably used. Further, polycarbonate, acrylonitrile resin, polypropylene, propylene-ethylene copolymer, polyethylene and the like can also be used.

  The mouth portion 2 is a cylindrical portion that serves as a content outlet. A screw thread 20 for attaching a lid (not shown) is provided on a side surface on the opening end side of the mouth 2, and after filling the contents, the container 1 is attached to the mouth 2. The inside can be sealed.

  Further, the lower end of the mouth portion 2 expands toward the body portion 4 and is connected to the shoulder portion 3 connecting the mouth portion 2 and the body portion 4. In the illustrated example, the shoulder portion 3 has a conical shape. It is formed in a trapezoid shape. The trunk 4 is a portion that occupies most of the height direction of the container 1, and has an upper end connected to the shoulder 3 and a lower end connected to the bottom 5.

  Here, the height direction means a direction orthogonal to the horizontal plane when the container 1 is erected on the horizontal plane with the mouth portion 2 up, and in this state, the vertical, horizontal, vertical and horizontal directions of the container 1 are defined. Shall be defined.

  In addition, the body 4 is formed in a substantially cylindrical shape, and a pair of gripping recesses 6 that are recessed inward of the container are provided to face the side surface of the body 4. The holding recess 6 includes a panel portion 60 defined in a vertically long outline. When the container 1 is lifted or carried, a thumb is put into one holding recess 6 and the other holding recess 6 The container 1 can be gripped by putting a finger other than the thumb into the panel portion 60 so that these fingertips follow the panel portion 60 that forms the bottom surface of each gripping recess 6.

  By providing such gripping concave portions 6 on the side surfaces of the body portion 4, the container 1 filled with the contents can be easily gripped by withstanding its weight. In consideration of the size of a general human hand, a specific form of the gripping recess 6 can fit a finger into the gripping recess 6 and can be placed on the fingertip attached to the panel unit 60. It can be designed as appropriate so that force is easily applied.

  The panel portion 60 forming the bottom surface of the gripping recess 6 has a vertically long outline so that fingers placed in the gripping recess 6, particularly fingers other than the thumb, can be vertically aligned and attached to the panel portion 60. It is formed to be defined. In the illustrated example, the panel unit 60 is defined by a vertically-long rectangular outline. For example, the outline defining the panel part 60 may be a vertically long track shape or an elliptical shape.

Further, the panel unit 60 includes a concave groove 61 extending along the height direction and a plurality of convex ribs 62 extending along a direction intersecting the concave groove 61.
In the example shown in the figure, the convex ribs 62 that have a discontinuous portion on the concave groove 61 and are divided on the left and right are positioned on the same straight line, and are disposed on the right side with the convex ribs 62 that are disposed on the left side. The convex rib 62 is provided so as to make a pair. And these convex ribs 62 are arranged in three rows at equal intervals along the height direction of the panel part 60, and one row | line | column is located and provided in the height direction center part.

  By providing the panel part 60 with the concave groove 61 extending along the height direction, the rigidity of the panel part 60 is improved. The shape of the concave groove 61 is not particularly limited, but in order to improve the rigidity of the panel portion 60, for example, the cross section orthogonal to the longitudinal direction is formed in an arc shape or trapezoidal shape protruding inward of the container. This is preferable (see FIG. 2).

  Further, the panel portion 60 has a concave groove 61 disposed at the center in the width direction thereof, and the panel surface located on both side edges of the concave groove 61 is inclined so that the concave groove 61 becomes the deepest portion of the holding concave portion 6. (See FIG. 2). By doing in this way, while the rigidity of the panel part 60 improves more, it can make it easy to apply force to the fingertip attached to the panel part 60. FIG.

  The convex rib 62 extending along the direction intersecting the concave groove 61 has, for example, a cross section orthogonal to the longitudinal direction protruding outward from the container so that a fingertip attached to the panel portion 60 is easily caught. It can be formed in an arc shape or a trapezoidal shape. By disposing the convex rib 62 on the concave groove 61 so as to have a discontinuous portion and to be divided into left and right, the panel portion 60 starting from the convex rib 62 is less likely to be deformed.

In providing the convex rib 62, the distance D between the convex rib 62 disposed on the left side of the concave groove 61 and the convex rib 62 disposed on the right side of the concave groove 61 is determined by the lateral width W of the concave groove 61. (D ≦ W) can be appropriately adjusted (see FIG. 2). At this time, it is preferable to provide the convex rib 62 so that one end of the convex rib 62 protrudes in the concave groove 61 as shown in the example shown in FIG. It can be made more difficult to occur.
In the illustrated example, the convex ribs 62 are provided so as to extend in a direction orthogonal to the height direction. However, the extending direction of the convex ribs 62 takes into account the ease with which the fingertips are caught. , It may be tilted with respect to a direction orthogonal to the height direction.

  According to the present embodiment, such a panel portion 60 is provided so as to extend along the height direction in the panel portion 60 by forming the bottom surface of the holding recess 6. The combination of the concave groove 61 and the convex rib 62 provided so as to have a discontinuous portion on the concave groove 61 and to be divided on the left and right, provides the internal pressure strength of the concave portion 6 for gripping to a conventional level. Can also be increased. As a result, it is possible to effectively suppress the occurrence of buckling in the holding recess 6 due to an increase in pressure in the container.

  Further, when the container 1 is filled with the contents, a load to be deformed so as to swell outward from the container acts on the holding recess 6 depending on the pressure (filling pressure) associated with the filling and the weight of the contents. To do. Since the filling amount of the contents may be controlled by the height of the liquid level, if the holding recess 6 swells outside the container at the time of filling, it becomes impossible to accurately control the filling amount. According to the present embodiment, such a problem can be effectively avoided.

  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 panel unit 60 includes a concave groove 61 extending along the height direction and a plurality of convex ribs 62 extending along a direction intersecting the concave groove 61. What is necessary is just to form so that it may have a discontinuous part on the concave groove 61, and it may be divided | segmented into right and left. The other detailed configuration of the panel portion 60 is not limited to the above-described embodiment, but the internal pressure strength required for the gripping recess 6 and the ease of gripping, and the formability and release during biaxial stretch blow molding. The design can be made as appropriate in consideration of the overall characteristics.

  Further, the capacity of the synthetic resin container according to the present invention is not particularly limited, but is practically particularly suitable for applications having a relatively large capacity such as a capacity of 1.8L, 2.7L, 4L, Examples of the contents include alcoholic beverages such as shochu and whiskey, edible oil, soy sauce and other seasonings.

  INDUSTRIAL APPLICABILITY The present invention can be used in various applications as a synthetic resin container in which a pair of gripping recesses for facilitating gripping a container is provided facing the side surface of the container body.

DESCRIPTION OF SYMBOLS 1 Container 2 Mouth part 3 Shoulder part 4 Trunk part 5 Bottom part 6 Grained recessed part 60 Panel part 61 Concave groove 62 Convex rib

Claims (3)

A pair of gripping recesses recessed inside the container is a synthetic resin container provided facing the side surface of the container body,
The holding recess includes a panel portion defined by a vertically long outline;
The panel portion includes a concave groove extending along a height direction, and a plurality of convex ribs extending along a direction intersecting the concave groove,
A synthetic resin container, wherein the convex rib has a discontinuous portion on the concave groove and is divided into left and right parts.   The synthetic resin container according to claim 1, wherein the convex rib is disposed so that one end of the convex rib protrudes into the concave groove.   The panel is arranged such that the groove is disposed at a laterally central portion of the panel portion, the panel surfaces positioned on both side edges of the groove are inclined, and the groove is the deepest portion of the gripping recess. The synthetic resin container according to claim 1 or 2, wherein a portion is formed.

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