JP2018070160A - container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oval-shaped container having a cross section with high strength against direct axial compression.SOLUTION: A container is formed by synthetic resin, and an opening portion, shoulder portion 20, a barrel portion 30 and a bottom portion 50 are disposed along a center axis J. The shoulder portion, barrel portion and bottom portion are substantially oval-shaped cross-sectional contour perpendicular to the center axis. The shoulder portion has an outer peripheral surface which is a convex surface projecting in a direction in which a distance from the center axis increases in the cross-sectional contour including the center axis. The barrel portion has an outer peripheral surface which is a concave surface connected to the convex surface and hollowing in a direction in which a distance from the center axis decreases in the cross-sectional contour including the center axis. The bottom portion has an outer peripheral surface connected to the concave surface and substantially parallel to the center axis. Relationships c>b>a, and g>h>f are satisfied, where a is a minimum width of the barrel portion, b is a maximum width of the shoulder portion and c is a width of the bottom portion in a long axis direction of the substantially oval-shaped, and f is a minimum width of the barrel portion, h is a maximum width of the shoulder portion and g is a width of the barrel portion in a short axis direction of the substantially oval-shaped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container.

  For example, containers that contain liquid products such as shampoos and rinses, body soaps, kitchen detergents, liquid clothing detergents, and softeners are generally formed into bottles by blow molding synthetic resin materials. This type of container is also required to have sufficient strength against the pressing force from above so that the container will not be deformed or damaged even if the cardboard boxes are stacked in a form packed in a cardboard box. Is done.

  For example, in a container having a capacity of about 700 ml, the displacement of the top surface of the container becomes 4 mm or more in the compression of the vertical axis up to a reaction force of 200 N. Therefore, strength reinforcement by a corrugated cardboard box is required, resulting in an increase in cost.

  Therefore, in Patent Document 1, by defining the radius of curvature at the shoulder and body of the container, and the concentric diameter of the horizontal section of the body from the bottom of the central cylindrical part to the bottom, the load resistance of the resin container A technique for increasing the resistance and impact resistance is disclosed.

Japanese Utility Model Publication No. 7-002213

  However, even with the conventional techniques as described above, it is difficult to say that the reaction force during the axial direct compression is sufficient. In recent years, there has been a demand for improvements in design and storage for containers used in homes, and high cross-axis compression is required for oval containers such as approximately oval, approximately oval, and approximately oval in cross section perpendicular to the axis. Strength is required.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a container having an oval cross section having high strength against axial compression.

  According to a first aspect of the present invention, there is provided a bottle-like container formed of a synthetic resin and having an opening, a shoulder, a trunk, and a bottom disposed along a central axis, wherein the shoulder, the trunk The section and the bottom are substantially oval in cross-sectional contour perpendicular to the central axis, and the shoulder is a convex curved surface protruding in a direction in which the distance from the central axis increases in the cross-sectional contour including the central axis. The body portion has a concave outer peripheral surface that is recessed in a direction in which the distance from the central axis decreases in a cross-sectional contour including the central axis and connected to the convex curved surface, and the bottom is An outer peripheral surface substantially parallel to the central axis and connected to the concave curved surface, wherein a is the minimum width of the body portion in the major axis direction of the substantially oval shape, and the maximum width of the shoulder portion in the major axis direction C, the bottom in the major axis direction When the width is b, the minimum width of the body portion in the minor axis direction of the substantially oval shape is f, the maximum width of the shoulder portion in the minor axis direction is h, and the width of the bottom portion in the minor axis direction is g. A container characterized by satisfying the relationship of c> b> a and g> h> f is provided.

  In the container according to one embodiment of the present invention, the relationship of 1.0> (a / b) ≧ 0.85 is satisfied.

  In the container according to one embodiment of the present invention, the relationship of 0.95 ≧ (a / b) ≧ 0.85 is satisfied.

  In the container according to the aspect of the present invention, in the major axis direction, the distance in the central axis direction between the position of the minimum width of the trunk portion and the upper end position of the outer peripheral surface of the bottom portion is d, and the major axis When the distance in the central axis direction between the position of the maximum width of the shoulder portion in the direction and the upper end position of the outer peripheral surface of the bottom portion is e, the relationship of 0.57 ≧ (d / e) ≧ 0.23 is satisfied. It is characterized by that.

  In the container according to the aspect of the present invention, in the minor axis direction, the distance in the central axis direction between the position of the minimum width of the trunk portion and the upper end position of the outer peripheral surface of the bottom portion is i, the minor axis If the distance in the central axis direction between the position of the maximum width of the shoulder in the direction and the upper end position of the outer peripheral surface of the bottom is j, the relationship of 0.62 ≧ (i / j) ≧ 0.30 is satisfied. It is characterized by that.

  Further, in the container according to one aspect of the present invention, at least one of the outer peripheral surfaces disposed on both sides in the minor axis direction of the trunk portion includes an outer circumferential surface disposed on both sides in the major axis direction of the trunk portion. A first surface connected with a continuous curvature, and a second surface that is connected to the first surface with a non-continuous curvature and forms a ridge line at the boundary between the first surface and the boundary. Are arranged in a V shape in which the distance in the direction of the central axis gradually increases toward the outer sides with the approximate center position in the major axis direction as a base point.

  In the container according to one aspect of the present invention, the base point of the boundary is arranged in the vicinity of the position of the minimum width of the body portion in the central axis direction.

  According to the present invention, it is possible to provide a container having an oval cross section having a high strength against axial compression.

(A) of the container 1 concerning one Embodiment of this invention is a front view, (b) is a right view. 1A is a cross-sectional view taken along line AA in FIG. 1A, FIG. 1B is a cross-sectional view taken along line BB in FIG. 1A, and FIG. FIG. (A) which shows the dimension of the container 1 is a front view, (b) is a right view. (A) of the container which concerns on the comparative example 1 is a front view, (b) is a right view.

Hereinafter, embodiments of the container of the present invention will be described with reference to FIGS. 1 to 4.
The following embodiments show one aspect of the present invention and do not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. Moreover, in the following drawings, in order to make each configuration easy to understand, the actual structure is different from the scale and number of each structure.

Fig.1 (a) is a front view of the container 1 concerning one Embodiment of this invention. FIG. 1B is a right side view of the container 1.
As shown in FIGS. 1A and 1B, the container 1 is in an upright state, and the opening 10, the shoulder 20, the trunk 30, and the bottom 50 are along the central axis J in order from the top. It is formed in the shape of a bottle arranged. In the container 1, the opening 10, the shoulder 20, the body 30, and the bottom 50 are integrally formed with a predetermined thickness from a synthetic resin.

  As the container 1, for example, polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate, or synthetic resin obtained by mixing these materials is used as a raw material resin, and this raw material resin is manufactured by blow molding or injection molding.

  In the following description, the center axis J is described as extending in the vertical direction (up and down direction). However, this is merely a definition of the up and down direction for convenience of description, and the container 1 according to the present invention. There is no limitation on the orientation when using.

  The opening part 10 is a cylindrical thing formed in the upper end, and pours out the contents inside a container. Examples of the contents include liquids such as shampoo, rinse, body soap, kitchen detergent, liquid clothing detergent, softener, mouthwash and eye wash. The term “cylindrical” is a concept that includes not only a perfectly circular cylinder in a plan view but also an ellipse in a plan view. The opening 10 is a member to which a cap (not shown) is attached. For example, when the cap is screwed into the opening 10, a screw portion is formed on the outer periphery of the extraction portion 10.

  FIG. 2A is a cross-sectional view taken along line AA in FIG. 1A and is a diagram illustrating an outline in which the outer peripheral surface of the shoulder 20 is cut in a horizontal plane. As shown in FIG. 2A, the cross-sectional contour of the shoulder portion 20 is substantially oval, and the outer peripheral surface 21 disposed on the back side of the oval short axis direction (hereinafter simply referred to as the short axis direction). (Not shown in FIG. 1A), outer peripheral surface 22 arranged on the front side in the short axis direction, outer peripheral surface arranged on the right side of the oval major axis direction (hereinafter simply referred to as the major axis direction) 23, and an outer peripheral surface 24 disposed on the left side in the long axis direction.

  In addition, the oval shape in the present embodiment is, for example, an egg shape, an oval shape, an oval shape, or the like.

  As shown in FIGS. 1A and 1B, the outer peripheral surfaces 21 to 24 of the shoulder portion 20 are convex curved surfaces that protrude in the direction in which the distance from the central axis increases in the cross-sectional contour including the central axis J. Is formed. 2A, the outer peripheral surface 21 on the back side has a smaller curvature than the adjacent outer peripheral surfaces 23 and 24, and has a continuous curvature with the outer peripheral surfaces 23 and 24. It is connected. That is, the outer peripheral surface 21 and the outer peripheral surfaces 23 and 24 are connected with a curvature that continuously changes from each other.

  The outer peripheral surface 22 disposed on the front side has a smaller curvature than the outer peripheral surface 21 and the adjacent outer peripheral surfaces 23 and 24, and is connected to the outer peripheral surfaces 23 and 24 with a discontinuous curvature. That is, the outer peripheral surface 22 and the outer peripheral surface 23 are connected with a curvature that forms a ridge line 25R at the boundary, and the outer peripheral surface 22 and the outer peripheral surface 24 are connected with a curvature that forms a ridge line 25L at the boundary.

  FIG. 2B is a cross-sectional view taken along the line BB in FIG. 1A, and is a diagram illustrating an outline in which the outer peripheral surface of the trunk portion 30 is cut in a horizontal plane. As shown in FIG. 2 (b), the cross-sectional contour of the body portion 30 is substantially oval, and is disposed on the outer peripheral surface 31 arranged on the back side in the short axis direction of the oval shape and on the front side in the short axis direction. The outer peripheral surfaces 32, 36R, and 36L, the outer peripheral surface 33 disposed on the right side in the long axis direction, and the outer peripheral surface 34 disposed on the left side in the long axis direction.

  As shown in FIGS. 1A and 1B, the outer peripheral surfaces 31 to 34, 36 </ b> R, and 36 </ b> L of the trunk portion 30 are recessed in a direction in which the distance from the central axis decreases in the cross-sectional contour including the central axis J. It is formed in a concave curved surface. The outer peripheral surface 31 on the back side is connected to the outer peripheral surface 21 of the shoulder portion 20 with a curvature that continuously changes from each other. Moreover, the outer peripheral surface 31 has a smaller curvature than the adjacent outer peripheral surfaces 33 and 34, and is connected with the outer peripheral surfaces 33 and 34 with the curvature which changes mutually continuously. The outer peripheral surface 33 is connected to the outer peripheral surface 23 of the shoulder 20 with a curvature that continuously changes from each other. The outer peripheral surface 34 is connected to the outer peripheral surface 24 of the shoulder 20 with a curvature that continuously changes from each other. The outer peripheral surface (first surface) 36 </ b> R has a smaller curvature than the adjacent outer peripheral surface 33 and is connected to the outer peripheral surface 33 with a curvature that continuously changes. The outer peripheral surface (first surface) 36 </ b> L has a smaller curvature than the adjacent outer peripheral surface 34, and is connected to the outer peripheral surface 34 with a curvature that continuously changes.

  The outer peripheral surface (second surface) 32 is connected to the outer peripheral surface 22 of the shoulder portion 20 with a curvature that continuously changes from each other. The outer peripheral surface 32 has a smaller curvature than the outer peripheral surface 31. The outer peripheral surface 32 is connected to the outer peripheral surfaces 36R and 36L with a discontinuous curvature. That is, the outer peripheral surface 32 and the outer peripheral surface 36R are connected with a curvature that forms a ridge line 35R at the boundary, and the outer peripheral surface 32 and the outer peripheral surface 36L are connected with a curvature that forms a ridge line 35L at the boundary.

  As shown in FIG. 1A, the outer peripheral surface 32 gradually increases in the upward and downward directions, with the position near the position where the width of the body 30 in the major axis direction becomes the smallest as the minimum width with respect to the position in the central axis J direction. It is formed in a wide shape. In other words, the ridge line 35R formed at the boundary between the outer peripheral surface 32 and the outer peripheral surface 36R has the narrowest width of the body 30 in the major axis direction with respect to the position in the central axis J direction, and the ridge line 35R of the body 30 in the major axis direction. With the position in the vicinity of the center as the base point, the distance in the central axis J direction is gradually increased toward the right outer side in the long axis direction. Similarly, the ridgeline 35L formed at the boundary between the outer peripheral surface 32 and the outer peripheral surface 36L has the narrowest width of the body 30 in the major axis direction with respect to the position in the central axis J direction, and the ridgeline 35L of the body 30 in the major axis direction. With the position in the vicinity of the center as a base point, the distance in the central axis J direction is gradually increased toward the left outer side in the long axis direction.

  Therefore, in the body portion 30, the outer peripheral surfaces 36R, 33, 31, 34, and 36L continuously change around the central axis J with the minimum width of the outer peripheral surface 32 disposed in the center in the long axis direction being sandwiched. A peripheral surface is formed that is smoothly connected in order with curvature.

  FIG. 2C is a cross-sectional view taken along the line CC in FIG. 1A, and is a diagram illustrating an outline in which the outer peripheral surface of the bottom portion 50 is cut in a horizontal plane. As shown in FIG. 2C, the cross-sectional contour of the bottom 50 is substantially oval, and is arranged on the outer peripheral surface 51 arranged on the back side in the short axis direction of the oval shape and on the front side in the short axis direction. It has the outer peripheral surface 52, the outer peripheral surface 53 arrange | positioned at the right side of a long-axis direction, and the outer peripheral surface 54 arrange | positioned at the left side of a long-axis direction. The curvatures of the outer peripheral surface 51 and the outer peripheral surface 52 are substantially the same, and are smaller than the curvatures of the outer peripheral surfaces 53 and 54.

  The outer peripheral surface 51 on the back side is connected to the adjacent outer peripheral surfaces 53 and 54 with curvatures that continuously change from each other. The outer peripheral surface 52 on the front side is connected to the adjacent outer peripheral surfaces 53 and 54 with curvatures that continuously change from each other.

  As shown in FIGS. 1A and 1B, the outer peripheral surfaces 51 to 54 of the bottom 50 are substantially parallel to the central axis J. Although the length of the outer peripheral surfaces 51-54 in the central axis J direction is not particularly limited, 3 mm to 20 mm can be exemplified. The outer peripheral surface 51 on the back side is connected to the outer peripheral surface 31 of the body 30 with a discontinuous curvature in a cross-sectional contour including the central axis J. The outer peripheral surface 52 on the front side is connected to the outer peripheral surface 32 of the body 30 with a discontinuous curvature. The outer peripheral surface 53 is connected with the outer peripheral surface 33 of the trunk | drum 30 with a discontinuous curvature. The outer peripheral surface 54 is connected to the outer peripheral surface 34 of the trunk portion 30 with a discontinuous curvature.

3A and 3B are front views and FIG. 3B and FIG.
As shown in FIG. 3A, the minimum width of the body 30 in the long axis direction is a, the maximum width of the 20 shoulders in the long axis direction is b, the width of the bottom 50 in the long axis direction is c, and the short axis direction Container 1 is represented by the following formula (1) and the following formula (2), where f is the minimum width of the body 30 and h is the maximum width of the 20 shoulders in the minor axis direction and g is the width of the bottom 50 in the minor axis direction. Is preferably satisfied.
c>b> a (1)
g>h> f (2)

  When the container 1 having the above-described configuration is compressed in the central axis J direction (axial direct compression), the difference between the width c and the width a and the width at the position where the minimum width a and the minimum width f of the body 30 in the central axis J direction are obtained. A load is applied at first angles θ11 and θ12 that are inclined in a direction approaching the central axis J in accordance with the difference between h and width f. Further, at the bottom 50, a load is applied at the second angles θ21 and θ22 that are inclined in the direction away from the central axis J in accordance with the difference between the width a and the width b and the difference between the width f and the width g. When the container 1 does not satisfy the expressions (1) and (2), for example, when c ≦ a or g ≦ f is satisfied, the angle change from the first angle θ11, θ12 to the second angle θ21, θ22 occurs. Since it is large, the strength against direct axial compression is small, and there is a possibility of buckling at positions where the width a and the width f are obtained. On the other hand, since the container 1 of the present embodiment satisfies the expressions (1) and (2), the change in the angle from the first angle θ11, θ12 to the second angle θ21, θ22 is small, and the axial compression is not affected. The strength can be increased.

In particular, the container 1 preferably satisfies the following expression (3).
1.0> (a / b) ≧ 0.85 (3)
When the numerical value represented by (a / b) is less than 0.85, since the second angle θ21 described above increases, the angle change from the first angle θ11 to the second angle θ21 also increases, and the axis The strength against direct compression is reduced. For example, there is a possibility of buckling when the container 1 is displaced by 4 mm. On the other hand, when the numerical value represented by (a / b) is 1.0 or more, the constricted shape in the trunk portion 30 is lost, and the design is deteriorated. On the other hand, the container 1 of the present embodiment can increase the strength against axial compression without causing deterioration in designability by satisfying the expression (3).

  Furthermore, in the container 1 described above, it is more preferable that the relationship of 0.95 ≧ (a / b) ≧ 0.85 is satisfied. This further improves the visibility of the constriction, which is preferable in terms of design.

  In addition, when the outer peripheral surfaces 51 to 54 in the bottom 50 are not parallel to the central axis J, for example, when the outer peripheral surface intersects an acute angle with respect to the bottom surface in the cross-sectional outline, the strength against axial compression is reduced depending on the angle. There is a possibility of buckling at the bottom 50. On the other hand, when the outer peripheral surface intersects an obtuse angle with respect to the bottom surface at the bottom portion 50, the outer peripheral surface is formed such that the upper end portion is expanded (expanded) with respect to the lower end portion. And the outer peripheral surface of the trunk | drum 30 connected to the said upper end part is formed so that a lower end part may spread (expanding diameter). Therefore, since the outer peripheral surface of the trunk portion 30 and the outer peripheral surface of the bottom portion 50 are both connected with an inclination that expands outward, the strength against axial direct compression is reduced, and the connecting portion between the trunk portion 30 and the bottom portion 50 is reduced. There is a possibility of buckling. On the other hand, since the outer peripheral surfaces 51-54 are parallel to the central axis J, the container 1 of the present embodiment can increase the strength against axial compression.

In the container 1, the distance in the central axis J direction between the position where the trunk portion 30 has the minimum width a and the upper end positions of the outer peripheral surfaces 53 and 54 of the bottom 50 in the major axis direction is d, and the major axis When the distance in the central axis J direction between the position where the shoulder portion 20 in the direction becomes the maximum width c and the upper end positions of the outer peripheral surfaces 53 and 54 of the bottom portion 50 is e, it is preferable to satisfy the following expression (4).
0.57 ≧ (d / e) ≧ 0.23 (4)

Similarly, in the minor axis direction, the distance in the central axis J direction between the position where the body 30 has the minimum width f and the upper end positions of the outer peripheral surfaces 51 and 52 of the bottom 50 is i, and the shoulder 20 in the minor axis direction is the largest. If the distance in the central axis J direction between the position where h is substantially h and the upper end positions of the outer peripheral surfaces 51 and 52 of the bottom 50 is j, it is preferable that the following expression (5) is satisfied.
0.62 ≧ (i / j) ≧ 0.30 (5)

  By satisfying the above formulas (4) and (5), it is possible to improve the visibility of the constriction from the viewpoint of design while improving the behavior against buckling.

Further, in the container 1 of the present embodiment, the outer peripheral surface 36R, 33, 31, 34, around the central axis J is sandwiched between the minimum width of the outer peripheral surface 32 disposed at the center in the long axis direction in the trunk portion 30. Since the peripheral surface that is sequentially and smoothly connected with the curvature that 36L continuously changes is formed between the ridge lines 35R and 35L that expand in the left and right directions, the outer peripheral surfaces 36R, 33, 31, 34, When the 36L is gripped, the finger portion hangs on the ridge lines 35R and 35L, so that the container 1 can be firmly held without slipping.
[Example]

  In Example 1, the container 1 was manufactured according to the specifications described in Table 1. Examples 2-5 are the containers 1 which changed the value of width a (namely, the value of a / b) with respect to the container 1 of Example 1. FIG. Examples 6-9 are the containers 1 which changed the value of the distance d and the distance i (namely, the value of d / e and the value of i / j) with respect to the container 1 of Example 1. FIG. In Comparative Example 1, the container shown in the front view shown in FIG. 4A and the right side view shown in FIG. 4B is manufactured according to the specifications described in Table 1. Comparative Examples 2 to 4 are containers 1 in which the value of the width a (that is, the value of a / b) is changed from that of the container 1 of Example 1. As shown in the partially enlarged view of FIG. 4A, the container of Comparative Example 1 has the outer peripheral surface of the bottom portion at an angle θ that becomes an obtuse angle with the bottom surface.

(Evaluation method)
A 200 N axial load was applied to the containers of the above Examples and Comparative Examples at 125 mm / min with a Tensilon compression tester (RTG-1250), and the displacement sites were measured visually.
In addition, when a direct axial load was applied to the container 1, the case where it buckled with a displacement of 4 mm or less was “x”, and the case where it buckled with a displacement exceeding 4 mm was “◯”.

  With respect to the containers of Comparative Examples 1 to 4, by applying the axial load, the minimum width a was reduced, and the constricted portion of the body portion was deformed in the direction in which the minimum width f was increased, and the appearance was deteriorated. Moreover, about the container of Comparative Examples 1-4, the deformation | transformation of the bottom part by provision of an axial direct load was not observed. On the other hand, for the containers 1 of Examples 1 to 9, the displacement and reaction force values until buckling were large, and the deformation of the bottom was observed before the constriction of the trunk due to the application of the axial load, and the axial It was confirmed to have high strength against compression.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the examples. Various shapes, combinations, and the like of the constituent members shown in the above-described examples are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

  For example, in the above embodiment, the container 1 having the outer peripheral surface on which the ridge lines 25L, 25R, 35L, and 35R are formed is illustrated, but the present invention is not limited to this configuration. The outer peripheral surface around J may be smoothly connected with a curvature that continuously changes over the entire circumference.

  DESCRIPTION OF SYMBOLS 1 ... Container, 10 ... Opening part, 20 ... Shoulder part, 30 ... Body part, 32 ... Outer peripheral surface (2nd surface), 35L, 35R ... Ridge line, 36L, 36R ... Outer peripheral surface (1st surface), 50 ... Bottom , J ... central axis

Claims (7)

A bottle-shaped container formed of a synthetic resin and having an opening, a shoulder, a trunk, and a bottom arranged along the central axis,
The shoulder portion, the trunk portion, and the bottom portion have a substantially oval cross-sectional profile orthogonal to the central axis.
The shoulder portion has a convex curved outer peripheral surface protruding in a direction in which the distance from the central axis increases in a cross-sectional contour including the central axis,
The trunk portion has a concave curved outer peripheral surface that is recessed in a direction in which the distance from the central axis decreases in a cross-sectional contour including the central axis and connected to the convex curved surface,
The bottom portion has an outer peripheral surface connected to the concave curved surface substantially parallel to the central axis,
The minimum width of the trunk portion in the major axis direction of the substantially oval shape is a, the maximum width of the shoulder portion in the major axis direction is c, the width of the bottom portion in the major axis direction is b,
When the minimum width of the body portion in the minor axis direction of the substantially oval shape is f, the maximum width of the shoulder portion in the minor axis direction is h, and the width of the bottom portion in the minor axis direction is g.
c>b> a and g>h> f
A container characterized by satisfying the relationship. 1.0> (a / b) ≧ 0.85
The container according to claim 1, wherein the following relationship is satisfied. 0.95 ≧ (a / b) ≧ 0.85
The container according to claim 2, wherein the following relationship is satisfied. The distance in the central axis direction between the position of the minimum width of the body portion and the upper end position of the outer peripheral surface of the bottom portion in the major axis direction is d, the position of the maximum width of the shoulder portion in the major axis direction and the bottom portion When the distance in the central axis direction to the upper end position of the outer peripheral surface is e,
0.57 ≧ (d / e) ≧ 0.23
The container according to claim 2 or 3, wherein the following relationship is satisfied. The distance in the central axis direction between the position of the minimum width of the body portion and the upper end position of the outer peripheral surface of the bottom portion in the short axis direction is i, the position of the maximum width of the shoulder portion in the short axis direction and the bottom portion When the distance in the central axis direction to the upper end position of the outer peripheral surface is j,
0.62 ≧ (i / j) ≧ 0.30
The container according to claim 4, wherein the following relationship is satisfied. At least one of the outer peripheral surfaces disposed on both sides of the short axis direction of the trunk portion, a first surface connected with an outer peripheral surface disposed on both sides of the long axis direction of the trunk portion with a continuous curvature; A second surface that is connected to the first surface with a discontinuous curvature and forms a ridge line at a boundary with the first surface;
The said boundary is each arrange | positioned in the V shape which the distance of the said central axis direction spreads gradually as it goes to both outer sides from the approximate center position of the said major axis direction as a base point. The container according to any one of the above.   The container according to claim 6, wherein the position of the base point of the boundary is arranged in the vicinity of the position of the minimum width of the body portion in the central axis direction.

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