Plastic container

Abstract

To provide an easily foldable resin container with an easily crushable trunk part.SOLUTION: A resin container 1 includes a mouth part 2, a shoulder part 3, a trunk part 4, and a bottom part 5. The trunk part 4 has a substantially prismatic shape. At least at part of the trunk part 4 is provided with a specific portion 42 which has a shape in which, when two pairs of opposing sides in a cross-sectional surface of the trunk part 4 are extended, a parallelogram shape is formed in which internal angles are not right angles.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a resin container.

Background Art

[0002] Resin containers are widely used as containers for filling liquid products such as beverages and for distribution and sales. Resin containers have advantages such as being lighter than other containers, being easy to form into any shape according to requirements such as capacity and design, and being easy to check the contents when transparent, so they are used in a wide range of applications.

[0003] When storing, transporting, etc. used resin containers for disposal, reuse, etc., their bulky size may become a problem. For example, cans and paper containers can be easily flattened after use. However, resin containers may be difficult to crush due to the elasticity of the resin.

[0004] In response to this problem, for example, Japanese Unexamined Patent Application Publication No. 2008-201448 (Patent Document 1) discloses a synthetic resin container having a unique horizontal groove with a partially bulged side wall surface. Also, Japanese Unexamined Patent Application Publication No. 2008-56291 (Patent Document 2) discloses a container provided with vertical ribs and horizontal ribs serving as starting points for folding operations.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the technology described in Patent Document 1 only made it easier to crush the container, and did not consider folding the container after it had been crushed. Similarly, while the technology described in Patent Document 2 considered folding the shoulder and bottom of the container, it did not consider folding the body, which occupies the largest volume. Therefore, there was room for improvement in conventional technologies in terms of reducing the bulkiness of the container after use.

[0007] Therefore, there is a need to create a resin container that is easy to crush and fold. [Means for solving the problem]

[0008] The resin container according to the present invention is a resin container comprising a mouth portion, a shoulder portion, a body portion, and a bottom portion, wherein the body portion is substantially prismatic in shape, and at least a part of the body portion is provided with a specific portion having a shape in which, when two pairs of opposing sides in the cross-section of the body portion are extended, a parallelogram with interior angles that are not right angles is formed. Occasionally, The torso is divided into an upper portion, a specific portion, and a lower portion, in the order from the side connected to the shoulder portion to the side connected to the bottom portion. The aforementioned specific portion is recessed inward compared to the upper portion and the lower portion. It is characterized by the following:

[0009] With this configuration, since the cross-section of a specific part is approximately parallelogram-shaped, by applying force to close the acute vertices of the parallelogram, the specific part can be crushed more easily and flatter compared to conventional containers with a rectangular cross-section. Furthermore, because the specific part becomes flat, it is easier to fold the container in half vertically, starting from that specific part. Thus, according to the present invention, it is possible to realize a resin container that is easy to crush and fold. In this embodiment, since a specific part is located in the center of the upper and lower part of the body, it is even easier to fold the container in half. With this configuration, a specific part functions as a suitable gripping position when the user holds the container.

[0010] Preferred embodiments of the present invention will be described below. However, the scope of the present invention is not limited by the examples of preferred embodiments described below.

[0015] The resin container according to the present invention preferably has, as one aspect, a recess that is further recessed inward from the specific portion.

[0016] According to this configuration, when the user grips the container, by hooking a finger on the recess, it is easy to stably grip the container.

[0017] The resin container according to the present invention preferably has, as one aspect, horizontal ribs extending in the circumferential direction provided on the specific portion.

[0018] According to this configuration, it is easy to achieve both the strength of the container during use and the ease of folding the container after use for the specific portion.

[0019] The resin container according to the present invention preferably has, as one aspect, a plurality of the horizontal ribs provided in parallel on a pair of opposing surfaces of the specific portion. This configuration makes it easier to further increase the strength of surfaces where multiple horizontal ribs are arranged in parallel.

[0020] <好 The resin container according to the present invention A resin container comprising a mouth, shoulders, body, and bottom, wherein the body is substantially prism-shaped, and at least a part of the body is provided with a specific portion having a shape in which, when two pairs of opposing sides in the cross-section of the body are extended, a parallelogram with interior angles that are not right angles is formed. The body portion has a lower portion that is a portion between the specific portion and the bottom portion, and a rib extending along a boundary that is continuous with a boundary corresponding to the acute vertex of the parallelogram in the specific portion among the boundaries of two surfaces in the lower portion Characterized by .

[0021] With this configuration, since the cross-section of a specific part is approximately parallelogram-shaped, by applying force to close the acute vertices of the parallelogram, the specific part can be crushed more easily and flatter compared to conventional containers with a rectangular cross-section. Furthermore, because the specific part becomes flat, it is easier to fold the container in half vertically, starting from that specific part. Thus, according to the present invention, it is possible to realize a resin container that is easy to crush and fold. According to this configuration, when performing an operation to crush the lower portion, the rib functions as a crease, so it is easy to crush the lower portion.

[0022] The resin container according to the present invention preferably has, as one aspect, a rib extending along the boundary between the shoulder portion and the upper portion, where the body portion has an upper portion that is a portion between the specific portion and the shoulder portion.

[0023] According to this configuration, when performing an operation to crush the upper part, the rib functions as a fold line, so it is easy to crush the upper part.

[0024] As one aspect, the resin container according to the present invention preferably has a rib provided along the boundary corresponding to the apex of the acute angle of the parallelogram among the boundaries of the two surfaces in the specific part.

[0025] According to this configuration, when performing an operation to crush the specific part, the rib functions as a fold line, so it is easy to crush the specific part.

[0026] As one aspect, the resin container according to the present invention preferably allows the distinction between the long side and the short side in the cross section of the body part.

[0027] According to this configuration, it is possible to provide a container that is easier to hold compared to the case of realizing a container of the same capacity in other shapes.

[0028] Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

Brief Description of the Drawings

[0029] [Figure 1] It is a front view of the bottle according to the embodiment. [Figure 2] It is a side view of the bottle according to the embodiment. [Figure 3] It is a top view of the bottle according to the embodiment. [Figure 4] It is a cross-sectional view of a specific part of the body of the bottle according to the embodiment (a cross-sectional view taken along line IV-IV in FIG. 1). [Figure 5] It is a diagram showing the procedure of the folding method of the bottle according to the embodiment. [Figure 6] It is a diagram showing the procedure of the folding method of the bottle according to the embodiment. [Figure 7] It is a diagram showing the procedure of the folding method of the bottle according to the embodiment. [Modes for carrying out the invention]

[0030] Embodiments of the resin container according to the present invention will be described with reference to the drawings. Below, an example in which the resin container according to the present invention is applied to a plastic bottle 1 (hereinafter simply referred to as bottle 1) will be described.

[0031] [Overall composition of the bottle] The bottle 1 according to this embodiment is made of polyethylene terephthalate and is a colorless, transparent container. The bottle 1 is obtained by biaxial stretch blow molding using a polyethylene terephthalate preform as the raw material. The material constituting the bottle is not limited to polyethylene terephthalate, but may be polyethylene, polypropylene, or the like. Furthermore, the origin of the material may be petroleum, plant-derived raw materials, recycled raw materials, etc.

[0032] In this embodiment, the capacity of bottle 1 is set to 2L. However, the capacity of bottle 1 is not particularly limited and may be around 200mL to 2L, such as 280mL, 350mL, or 500mL, which are commonly available.

[0033] Bottle 1 is used for filling liquid products such as soft drinks (carbonated drinks, fruit drinks, coffee drinks, tea drinks, mineral water, soy milk products, vegetable drinks, sports drinks, cocoa drinks, etc.), alcoholic beverages, dairy drinks, liquid foods such as soups, and liquid seasonings such as sauces and soy sauce.

[0034] The bottle 1 according to this embodiment has a mouth portion 2, a shoulder portion 3, a body portion 4, and a bottom portion 5 (Figures 1 and 2). When referring to the vertical direction of the bottle 1 in the following description, it refers to the vertical direction based on the orientation in which the bottle 1 is placed so that the bottom portion 5 is touching the ground (the orientation shown in Figures 1 and 2). That is, the upper side of the bottle 1 is the side of the mouth portion 2, and the lower side of the bottle 1 is the side of the bottom portion 5. When referring to the horizontal direction (or lateral direction) of the bottle 1, it refers to the direction perpendicular to the vertical direction described above (i.e., the left-right direction in Figure 1 or the direction perpendicular to the plane of the paper). Note that the opposing pair of surfaces of the bottle 1 each have the same shape.

[0035] When viewed from above, bottle 1 has a roughly rectangular shape (Figure 3). Note that "roughly rectangular" does not mean a quadrilateral shape according to a mathematical definition, but rather a shape that can be considered substantially rectangular due to features such as rounded edges that can be added as part of an industrial product. More specifically, the quadrilateral is a rectangle, and the side of bottle 1 can be distinguished into the longer side of the cross-section (Figure 1) and the shorter side (Figure 2).

[0036] The mouth portion 2 is an opening for putting in and taking out the liquid product filled inside, and its outer surface is provided with a male thread for screwing on a cap (not shown). The shoulder portion 3 is the part of the bottle 1 that gradually expands from the mouth portion 2 toward the body portion 4. The position in the height direction where the bottle 1 expands to its maximum extent from the mouth portion 2 toward the top is defined as the boundary between the shoulder portion 3 and the body portion 4. The bottom portion 5 is the part that touches the surface when the bottle 1 is placed on a table or other surface, and the bottle 1 also gradually expands from the bottom portion 5 toward the body portion 4. The position in the height direction where the bottle 1 expands to its maximum extent from the surface it touches is defined as the boundary between the bottom portion 5 and the body portion 4. The structure and function of the mouth portion 2, shoulder portion 3, and bottom portion 5 are the same as those of the mouth portion, shoulder portion, and bottom portion of known plastic bottles, respectively, so a detailed explanation is omitted.

[0037] [Structure of the torso] The torso 4 is divided into an upper portion 41, a specific portion 42, and a lower portion 43, in order from the side connected to the shoulder portion 3 (upper side) to the side connected to the bottom portion 5 (lower side).

[0038] (1) Upper part 41 The upper portion 41 is the part of the body portion 4 above the specific portion 42, that is, the portion between the specific portion 42 and the shoulder portion 3. The upper portion 41 is provided with a first transverse rib 61 extending along the boundary between the shoulder portion 3 and the upper portion 41, and a plurality (five in this embodiment) of second transverse ribs 62 (Figures 1 and 2). The first transverse rib 61 is a concave rib (a rib that protrudes inward from the surface of the bottle 1; the same applies hereinafter) provided on each of the four surfaces (all four surfaces) of the cross-section, on the long side surface (Figure 1) and the short side surface (Figure 2), with a length that fits within the range of each surface. The depth of the first transverse rib 61 is uniform. The depth of the concave rib refers to the depth to which the rib protrudes inward into the bottle 1, and the same applies to the other concave ribs described below.

[0039] The second transverse rib 62 is a concave rib provided horizontally along the entire circumference of the upper portion 41. The second transverse rib 62 has a wave-like shape with alternating deep and shallow sections. More specifically, the deep sections are provided in the parts corresponding to the edges of the cross section, and the shallow sections are provided in the parts corresponding to the vertices of the cross section.

[0040] Furthermore, the cross-sectional shape of the upper portion 41 is substantially the same as that of the plan view of bottle 1 (Figure 3).

[0041] (2) Specific part 42 The specific portion 42 is formed as a recessed portion inward from the upper portion 41 and the lower portion 43 of the bottle 1 (Figures 1 and 2). A cross-section of the specific portion 42 is shown in Figure 4. Two pairs of opposing sides 44 and 45 can be seen in this cross-section, with one pair of sides 44 corresponding to the longer side face (Figure 1) and the other pair of sides 45 corresponding to the shorter side face (Figure 2). Extending these two pairs of opposing sides 44 and 45 forms a parallelogram P. This parallelogram P has a vertex P1 with an acute interior angle and a vertex P2 with an obtuse interior angle, and therefore the interior angles of the parallelogram P are not right angles. In other words, the parallelogram P is not a rectangle.

[0042] A first longitudinal rib 71 is provided along the boundary between the long side surface (Figure 1) and the short side surface (Figure 2) of a specific portion 42. More specifically, the first longitudinal rib 71 is provided at two boundaries between the long side surface and the short side surface that correspond to the acute vertices P1 of the parallelogram P. In this embodiment, the first longitudinal rib 71 is a convex rib provided in a manner that protrudes outward from the bottle 1.

[0043] The specific portion 42 has a recess 42b that is further recessed inward from the main portion 42a of the specific portion 42. The recess 42b is located in the center in the left-right direction of the long side surface of the cross-section (Figure 1). In addition, a cross-shaped rib 46 is provided in the center of the recess 42b. The rib 46 consists of two perpendicular recessed ribs.

[0044] The main portion 42a of the specific portion 42 is provided with a third transverse rib 63 that extends circumferentially from the first longitudinal rib 71. The third transverse rib 63 is a concave rib, and its depth is uniform. From the first longitudinal rib 71, one third transverse rib 63 extends to the side of the recess 42b on the side of the pair of long-side faces of the cross-section (Figure 1). From the first longitudinal rib 71, three third transverse ribs 63 extend to the side of the pair of short-side faces of the cross-section (Figure 2) (an example of a pair of opposing faces). Of the three upper, middle, and lower third transverse ribs 63 provided on the short-side faces, the middle rib is provided to a length that fits within the range of the short-side face, while the upper and lower ribs extend to the adjacent long-side face and reach the side of the recess 42b. Furthermore, the upper and lower third transverse ribs 63 each curve toward the middle rib on the long-side face and merge near the recess 42b.

[0045] Furthermore, regarding the provision of third transverse ribs 63 on both sides in the circumferential direction starting from the first longitudinal rib 71, it can also be interpreted as the first longitudinal rib 71 being provided in a manner that intersects the third transverse rib 63.

[0046] The specific portion 42 functions as a preferred gripping position when the user grasps the bottle 1. Firstly, since the specific portion 42 is formed as a recessed portion inward from the bottle 1 compared to the upper portion 41 and the lower portion 43, even users with relatively small hands can easily grasp the specific portion 42 without strain. Secondly, when the user grasps the specific portion 42, they can hook their fingers into the recess 42b, making it easier to stabilize the grip on the bottle 1.

[0047] The size of the interior angles of the acute and obtuse vertices of a parallelogram P is not limited as long as the parallelogram P is a parallelogram. In other words, using an angle θ greater than 0°, the interior angles of the acute vertices are expressed as 90°-θ and the interior angles of the obtuse vertices as 90°+θ. In this embodiment, θ is 5°, that is, the interior angle of vertex P1 is 85° and the interior angle of vertex P2 is 95°. As in this example, it is preferable that θ is between 1° and 30°. The fact that the cross-sectional shape of the specific part 32 is a parallelogram P has the effect of making it easier to perform the operation of crushing the specific part P (described later), and this effect is particularly pronounced when θ is 1° or greater. Also, when θ is 30° or less, the function of the specific part 42 as a gripping position for the bottle 1 is less likely to be impaired. It is more preferable that θ is 3° or greater, and even more preferable that it is 4° or greater. Furthermore, θ is more preferably 10° or less, and even more preferably 6° or less.

[0048] (3) Lower part 43 The lower portion 43 is the part of the body 4 below the specific portion 42, that is, the portion between the specific portion 42 and the bottom portion 5. The lower portion 43 is provided with, from top to bottom, a wavy rib 64, a spring rib 65, and multiple (two in this embodiment) fourth transverse ribs 66. All of these ribs are concave ribs. In addition, a second longitudinal rib 72 is provided that extends along two boundaries located below the first longitudinal rib 71, between the long side surface (Figure 1) and the short side surface (Figure 2) of the cross-section of the lower portion 43. The second longitudinal rib 72 is a convex rib provided in a manner that crosses the wavy rib 64 and the fourth transverse rib 66. The cross-sectional shape of the lower portion 43 is substantially the same as that of the plan view of the bottle 1 (Figure 3).

[0049] The wavy rib 64 is a rib provided in a shape in which its vertical position changes continuously along the circumferential direction of the lower portion 43. The spring rib 65 has a groove portion 65a provided around the entire circumference of the lower portion 43, and small recesses 65b formed one above and one below the groove portion 65a around the entire circumference of the lower portion 43. Note that the entire spring rib 65, including the groove portion 65a and the small recesses 65b, can also be considered as a single rib.

[0050] The fourth transverse rib 66 is provided horizontally along the entire circumference of the lower portion 43. However, as mentioned above, the second longitudinal rib 72 crosses the fourth transverse rib 66. Except where the second longitudinal rib 72 crosses it, the depth of the fourth transverse rib 66 is uniform.

[0051] [How to fold the bottle] In this embodiment, the bottle 1, by providing the above-mentioned components, is designed to be more easily folded than conventional plastic bottles. By folding the bottle 1 after use, the volume required for storage and transportation for disposal, reuse, etc., can be reduced. The method for folding the bottle 1 will be described below.

[0052] First, an operation is performed to compress a specific portion 42 (Figure 5). Specifically, the two faces on the longer sides of the cross section are moved alternately toward vertex P1 (acute angle) of the parallelogram P of the cross section. When this operation is performed, the specific portion 42 is deformed (compressed) so that the interior angle of vertex P1 of the parallelogram P becomes smaller and the interior angle of vertex P2 approaches 180°.

[0053] In this embodiment, since the cross-section of the specific portion 42 is parallelogram-shaped, it is easily deformed according to the force applied to close the vertex P1 with an acute interior angle. For this reason, the specific portion 42 can be crushed more easily and more flatly compared to conventional plastic bottles with a rectangular cross-section. In addition, the first longitudinal rib 71 is provided in a manner that protrudes outward from the bottle 1, which increases the mobility of the vertex P1 portion that deforms to reduce its interior angle. Thus, the fact that the first longitudinal rib 71 functions as a fold also contributes to facilitating the above deformation.

[0054] Secondly, the bottle 1 is folded in half at the crushed specific portion 42 (Figure 6). At this time, the upper portion 41 and the lower portion 43 come into contact with each other. Then, the upper portion 41 and the lower portion 43 are crushed together. At this time, the second longitudinal rib 72 functions as a fold, similar to the first longitudinal rib 71, making it easier to crush the lower portion 43.

[0055] Thirdly, an operation is performed to fix the relative position of the shoulder portion 3 and the bottom portion 5. By folding the specific portion 42 vertically and crushing the upper portion 41 and the lower portion 43, the shoulder portion 3 and the bottom portion 5 are positioned in close proximity. In this state, the relative position of the two is fixed to fix the reduced volume occupied by the bottle 1 (Figure 7). Specifically, the shoulder portion 3 and the bottom portion 5 are engaged.

[0056] In this embodiment, the cross-section of the specific portion 42 is made into a parallelogram shape so that the shape after being crushed becomes flat, making it easier to fold the specific portion 42 vertically compared to conventional plastic bottles. By folding the bottle 1 in this way, the volume occupied by the bottle 1 can be reduced.

[0057] [Other Embodiments] Finally, other embodiments of the resin container according to the present invention will be described. Note that the configurations disclosed in each of the following embodiments can be applied in combination with configurations disclosed in other embodiments, as long as no inconsistencies arise.

[0058] In the above embodiment, a configuration in which the body portion 4 is divided into an upper portion 41, a specific portion 42, and a lower portion 43 was described as an example. However, in the resin container according to the present invention, the number of divisions of the body portion is not limited as long as a specific portion is provided in the body portion. For example, the entire area of ​​the body portion may be provided as a specific portion. Alternatively, the body portion may be divided into two regions including the specific portion. That is, the body portion may be divided into an upper portion and a specific portion, or into a specific portion and a lower portion.

[0059] In the above embodiment, the specific portion 42 is formed as a portion recessed inward from the bottle 1 compared to the upper portion 41 and the lower portion 43, and a configuration in which the specific portion 42 has a recess 42b was described as an example. However, in the resin container according to the present invention, the structure of the specific portion is not limited as long as the shape is such that extending two pairs of opposing sides in the cross-section of the specific portion forms a parallelogram with interior angles that are not right angles.

[0060] In the above embodiment, a configuration in which a first longitudinal rib 71 and a third transverse rib 63 are provided in a specific portion 42 was described as an example. However, in the resin container according to the present invention, the presence and arrangement of ribs in the specific portion are arbitrary. Therefore, one or both of these ribs may not be provided. In addition, other ribs may be provided.

[0061] In the above embodiment, the bottle 1 is described as having a substantially rectangular shape in a plan view, and the side surface of the bottle 1 can be distinguished into the long side surface (Figure 1) and the short side surface (Figure 2) in the cross-section. However, the resin container according to the present invention may be substantially square in a plan view, and the long side surface and the short side surface in the cross-section cannot be distinguished. In this case, the parallelogram formed by extending two pairs of opposing sides in the cross-section of a specific part is a rhombus, and in this case as well, the condition that the interior angles are not right angles is satisfied. Furthermore, in this case, although the long side surface and the short side surface cannot be distinguished, if one pair of the two pairs of opposing surfaces is the long side surface (Figure 1) in the above embodiment, and the other pair is the short side surface (Figure 2), the present invention can be implemented in the same manner as in the above embodiment.

[0062] Furthermore, when comparing a container with a cross-sectional shape where the long and short sides of the cross-section can be distinguished (a roughly rectangular cross-section) and a shape where they cannot be distinguished (a roughly square cross-section), assuming the container capacity is the same, the former has the advantage of allowing for a smaller width on the short side. This feature is advantageous for relatively large-capacity containers (for example, 1.5L or more), as it allows for a container that is easy to hold, as the width of the short side can be kept to a level that fits comfortably in the user's hand.

[0063] In the above embodiment, a configuration in which a second longitudinal rib 72 is provided in the lower portion 43 was described as an example. However, in the resin container according to the present invention, the presence or absence and arrangement of ribs in the lower portion are arbitrary.

[0064] In the above embodiment, a configuration in which a first transverse rib 61 extending along the boundary between the shoulder portion 3 and the upper portion 41 is provided was described as an example. However, in the resin container according to the present invention, the presence or absence and arrangement of ribs in the upper portion 41 are arbitrary.

[0065] With regard to other configurations, the embodiments disclosed herein are illustrative in all respects, and it should be understood that the scope of the present invention is not limited thereto. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the invention. Therefore, other embodiments modified without departing from the spirit of the invention are naturally included within the scope of the present invention. [Industrial applicability]

[0066] The present invention can be used, for example, as a container for filling liquid products. [Explanation of Symbols]

[0067] 1: Plastic bottle 2: Mouth 3:Shoulder 4: Torso 41: Upper part 42:Specific part 42a: The principal part of a particular part 42b: recess 43: Lower part 44: Side (longer side) 45: Side (short side) 46: Rib 5: Bottom 61: First transverse rib 62: Second transverse rib 63: Third transverse rib 64: Wavy ribs 65: Spring Rib 65a:Groove part 65b: Small recess 66: Fourth transverse rib 71: First longitudinal rib 72: Second longitudinal rib P: Parallelogram P1: Vertex (acute angle) P2: Vertex (obtuse angle)

Claims

1. A resin container comprising a mouth, shoulders, body, and bottom, The aforementioned body is roughly prism-shaped, A specific portion is provided in at least a part of the torso, having a shape in which, when two pairs of opposing sides in the cross-section of the torso are extended, a parallelogram with interior angles that are not right angles is formed. The torso is divided into an upper portion, a specific portion, and a lower portion, in the order from the side connected to the shoulder portion to the side connected to the bottom portion. A resin container in which the aforementioned specific portion is recessed inward compared to the upper portion and the lower portion.

2. The resin container according to claim 1, having a recess that is further recessed inward from the aforementioned specific portion.

3. The resin container according to claim 2, wherein the aforementioned specific portion is provided with transverse ribs extending in the circumferential direction.

4. The resin container according to claim 3, wherein a plurality of the transverse ribs are provided parallel to each other on a pair of opposing surfaces of the specified portion.

5. A resin container comprising a mouth, shoulders, body, and bottom, The aforementioned body is roughly prism-shaped, A specific portion is provided in at least a part of the torso, having a shape in which, when two pairs of opposing sides in the cross-section of the torso are extended, a parallelogram with interior angles that are not right angles is formed. The body portion has a lower portion which is the portion between the specific portion and the bottom portion, A resin container having ribs extending along a boundary that is connected to the boundary of the two surfaces in the lower portion, the boundary of which corresponds to the acute vertex of the parallelogram in the specific portion.

6. The torso portion has an upper portion which is the portion between the specific portion and the shoulder portion, The resin container according to claim 5, wherein a rib extending along the boundary between the shoulder portion and the upper portion is provided.

7. A resin container according to any one of claims 1 to 6, wherein a rib is provided that extends along the boundary of the two surfaces in the specified portion, the boundary corresponding to the acute vertex of the parallelogram.

8. A resin container according to any one of claims 1 to 6, wherein the cross-section of the body portion is such that the long side and the short side can be distinguished.

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