JP2022101914A - Resin container - Google Patents

Abstract

To provide a resin container having a portion that is swelled outwardly to form an angular and convex shape in a body, the resin container being capable of suppressing denting on the portion even if negative pressure is generated in the resin container.SOLUTION: A resin container 1 houses contents within a hollow body 11 standing from an outer peripheral edge of a bottom 10. The body 11 has a swollen part swollen outwardly to form a convex shape included in a front portion 110. The swollen part is formed so that a boundary with a plurality of panels 1100 where the panels 1100 extending in a vertical direction are adjacent in a longitudinal direction is connected to be angular. The plurality of panels 1100 are provided with concave grooves 1101 extending in the vertical direction along the boundary on the boundary of the adjacent panels 1100.SELECTED DRAWING: Figure 1

Description

The present invention relates to a resin container.

Conventionally, resin-made containers have been widely used as containers for containing contents such as beverages, drugs, and cosmetics. For example, in a drug volatilizer that volatilizes a liquid drug such as an air freshener or a deodorant, a resin container is used for accommodating the liquid drug. In the manufacture of resin containers, the amount of resin used per container is reduced by reducing the thickness in order to reduce costs and environmental problems.

Here, if the body portion of the resin container (the portion that divides the storage space for the contents rising from the outer peripheral edge of the bottom portion) is thinned, the mechanical strength of the body portion is lowered. Therefore, when negative pressure is generated in the resin container, the body is dented, and the exterior film that covers the entire resin container is also dented or distorted following the dent in the body, resulting in the design of the resin container. Is impaired. This dent in the trunk is formed so as to bulge outward in a convex shape and is prominently generated in a portion having a large width, and the portion is a flat shape having a small width on the left and right sides with respect to the front and back surfaces. It is often found on the front side of resin containers. Since the front part (front part) of the body is a part that is particularly noticeable to the purchaser at the time of display at the store, if a dent is generated in the front part, the design of the resin container is greatly adversely affected.

Therefore, a technique has been proposed in which the mechanical strength of the body portion is increased by providing a reinforcing rib on the front portion where a dent of the body portion is likely to occur (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2010-137897

The technique described in Patent Document 1 is a technique for increasing the mechanical strength of a resin container in which the front portion of the body portion is smoothly curved and bulges outward so as to form a convex shape. This type of resin container is formed into various shapes according to the design. For example, Patent Document 1 describes a resin container having a shape in which the front portion of the body portion is generally angular and bulges outward so as to form a convex shape. Even if the reinforcing ribs described in the above are applied, the mechanical strength of the body cannot be sufficiently increased.

The present invention has been made by paying attention to the above-mentioned problems. For a resin container having a portion in the body that bulges outward so as to be angular and convex as a whole, even if negative pressure is generated in the resin container. It is an object of the present invention to provide a resin container capable of suppressing a dent in the portion.

The present invention relates to a resin container for accommodating the contents in a hollow body rising from the outer peripheral edge of the bottom. In the resin container of the present invention, the body portion includes a bulging portion that bulges outward in a convex shape at least in a part in the circumferential direction, and the bulging portion includes a plurality of panel portions extending in the vertical direction on the left and right. The boundary between the adjacent panel portions is connected so as to be angular, and the plurality of panel portions are provided with a concave groove extending in the vertical direction along the boundary at the boundary between the adjacent panel portions. It is characterized by being.

In the resin container of the present invention, the groove is preferably configured to have a U-shaped cross-sectional view.

Further, in the resin container of the present invention, preferably, the groove can be configured so that the lateral width gradually expands from both ends in the vertical direction toward the center.

Further, in the resin container of the present invention, the body portion preferably includes a front portion, a back portion, and left and right side surface portions, and is formed in a flat shape in which the width of the side view is smaller than the width of the front view. The bulging portion can be configured to constitute the front surface portion.

According to the present invention, with respect to a resin container having a portion in the body portion that bulges outward so as to be angular and convex as a whole, it is possible to suppress dents in the portion even if negative pressure is generated in the resin container. ..

It is a front view of the resin container of this embodiment. It is a top view of the resin container of this embodiment. It is a bottom view of the resin container of this embodiment. It is a right side view of the resin container of this embodiment. It is a cross-sectional view (X1-X1 cross-sectional view of FIG. 1) seen from the plane side of the resin container of this embodiment. It is a vertical sectional view (X2-X2 sectional view of FIG. 2) seen from the front side of the resin container of this embodiment. It is a vertical sectional view (X3-X3 sectional view of FIG. 2) seen from the side surface side of the resin container of this embodiment. It is a perspective view of the resin container (with a cap) and a cover of this embodiment. It is a vertical sectional view seen from the front side with the cover attached to the resin container of this embodiment. It is a vertical sectional view seen from the side surface side with the cover attached to the resin container of this embodiment. It is a front view (the resin container is a vertical sectional view seen from the front side) which shows the use state of the chemical volatilizer (the cover is not attached) using the resin container of this embodiment. It is a vertical sectional view seen from the front side of the cover of FIG. It is a vertical sectional view seen from the side surface side of the cover of FIG. FIG. 3 is a partial vertical sectional view showing an enlarged first convex portion and a second convex portion of the cover of FIG. FIG. 8 is a partial cross-sectional view seen from the bottom surface side showing a part (second convex portion) of the cover of FIG. 8 in an enlarged manner. It is a partial vertical sectional view explaining how the first convex portion and the second convex portion enter into the first concave portion and the second concave portion, respectively, when the cover is attached to the resin container of this embodiment. It is a partial vertical sectional view explaining how the first convex portion and the second convex portion enter into the first concave portion and the second concave portion, respectively, when the cover is attached to the resin container of this embodiment. Regarding the resin container of the present embodiment, (A) is a front view showing a state in which a cover is attached and further wrapped with an exterior film, and (B) is a front view showing a state in which a portion covering the cover of the exterior film is peeled off from the cover. Is. It is a side view of the case where two resin containers of this embodiment are arranged side by side with a cover attached and further wrapped with an exterior film. It is a side view of the resin container of the prior art in the case where two are arranged side by side with a cover attached and further wrapped with an exterior film.

Outline of Resin Container The resin container of the present invention is used as a container for containing contents such as beverages, drugs, and cosmetics, and is used, for example, as a drug container for a drug volatilizer. The drug volatilizer is provided with a drug container, a liquid absorbing core material, a cap and a cover, and the liquid absorbing core material is inserted into a drug container containing a liquid drug such as a fragrance or a deodorant, and a capillary tube of the liquid absorbing core material is inserted. It is possible to exemplify a structure in which a drug solution is sucked up by a phenomenon and the drug component of the drug solution is volatilized in an external space. The above-mentioned purpose of use of the resin container of the present invention is merely an example.

Hereinafter, embodiments of the resin container of the present invention will be described with reference to the accompanying drawings. 1 to 7 show the resin container 1 of the present embodiment, FIGS. 8 to 10 show a state in which a cover is attached to the resin container 1 of the present embodiment, and FIG. 11 shows the present embodiment. The usage state (without the cover) of the example in which the resin container 1 is used for the drug volatilizer is shown. In the present disclosure, the height direction of the self-standing resin container 1 is the vertical direction, the horizontal width direction of the resin container 1 seen from the front in FIG. 1 is the horizontal direction, and the side surface of the resin container 1 shown in FIG. 4 The width direction as seen (the depth direction as seen from the front of the resin container 1 shown in FIG. 1) is defined as the front-rear direction.

Description of the overall configuration of the resin container As shown in FIGS. 1 to 7, the resin container 1 is a hollow and bottomed container having an opening at the upper end. The resin container 1 is preferably partially or wholly transparent or translucent, whereby the remaining amount of the contents can be confirmed from the outside. The material of the resin container 1 is not particularly limited, but can be formed of, for example, an elastically deformable synthetic resin material such as polyethylene terephthalate, polyethylene, or polypropylene. The resin container 1 can be manufactured by a known blow molding, for example, injection blow molding, that is, after the preform is manufactured by an injection molding method, this preform is molded corresponding to the outer shape of the resin container 1. A molding method can be used in which the preform is inflated by a stretch blow molding method by inserting it into a mold having a surface. The thickness of the resin container 1 is not particularly limited, but may be, for example, 0.2 mm or more and 2 mm or less.

The resin container 1 has a bottom portion 10, a hollow body portion 11 rising from the outer peripheral edge of the bottom portion 10, a shoulder portion 12 connected to the upper end of the body portion 11 so as to face the body portion 11, and an upper part in the center of the shoulder portion 12. Includes a tubular mouth portion 13 extending so as to extend to. The space surrounded by the body portion 11 on the bottom portion 10 is the storage space for the contents.

Description of the Mouth As shown in FIGS. 1 to 7, the mouth 13 of the resin container 1 has a cylindrical shape, although not particularly limited, and the inner and outer wall surfaces have a circular cross-sectional shape. In the present disclosure, the cross-sectional view shape is a shape of a cross section along the horizontal direction. Further, the vertical cross-sectional view shape is a shape of a cross section along the vertical direction.

The upper and lower ends of the mouth portion 13 are open, the upper end opening 130 is the pouring port for the contents, and the lower end opening is the communication port with the shoulder portion 12 and the body portion 11. A cap 2 capable of closing the opening 130 at the upper end is detachably attached to the mouth portion 13. A male screw (not shown) is provided on the upper portion of the outer wall surface of the mouth portion 13. This male screw is screwed with the female screw (not shown) of the cap 2 (shown in FIGS. 8 and 9) so that the cap 2 attached to the mouth portion 13 cannot be easily removed from the mouth portion 13. It can be connected. The means for attaching the cap 2 to the mouth portion 13 and connecting the two is not particularly limited, and various other known means can be used. Further, the mouth portion 13 may not be provided with a connecting means such as a male screw, and the mouth portion 13 may be simply fitted in the cap 2.

As shown in FIGS. 8 and 11, the cap 2 attached to the mouth portion 13 includes a top surface portion 20 having a circular shape in a plan view and a peripheral surface portion 21 hanging from the outer peripheral edge of the upper surface portion. The cap 2 is not particularly limited, but is formed of an elastically deformable synthetic resin material. The peripheral surface portion 21 can insert the mouth portion 13 of the resin container 1 inside, and a male screw provided on the outer wall surface of the mouth portion 13 is provided at the lower portion of the inner wall surface portion of the peripheral surface portion 21 (not shown). ) Is provided with a female screw (not shown). A protrusion 22 protruding downward is provided on the lower surface of the top surface portion 20.

Returning to the description of the mouth portion 13 of the resin container 1, as shown in FIGS. 1 to 7, a pair of constricted portions 131 are provided at the lower portion of the outer wall surface of the mouth portion 13. The pair of constricted portions 131 is formed by denting a part of the mouth portion 13 inward in a concave shape. The pair of constricted portions 131 are arranged so as to face each other. The internal space of the mouth portion 13 is narrowed by the pair of constricted portions 131, and a rectangular void 132 in a plan view is formed between the pair of constricted portions 131.

Here, when the resin container 1 is used as the drug container of the drug volatilizer, the liquid absorbing core material 3 is inserted into the resin container 1 from the gap 132. As shown in FIG. 11, the liquid absorbing core material 3 inserted into the resin container 1 is pulled up so that a part on the upper end side protrudes upward from the resin container 1, so that the contents inside the resin container 1 are included. A substance (liquid chemical) is sucked up by capillarity and volatilized in the external space. At this time, since the cross-sectional view of the void 132 is smaller than the cross-sectional view of the liquid-absorbing core material 3, the liquid-absorbing core material 3 is pressed by the pair of constricted portions 131 while the liquid-absorbing core material 3 is paired. It is sandwiched by the constricted portion 131. As a result, the liquid absorbing core material 3 is held in a pulled-up state.

The liquid absorbing core material 3 is not particularly limited, but exhibits an elongated strip shape. The material of the liquid-absorbing core material 3 is not particularly limited as long as the liquid drug in the resin container 1 can be sucked up by the capillary phenomenon and the sucked-up liquid drug can be volatilized in the external space. For example, various fibrous materials such as nylon, rayon, polyester (for example, polyethylene terephthalate), polypropylene, polyethylene, and pulp can be mentioned as the material of the liquid absorbing core material 3, and these materials may be used alone. , Or a combination of two or more. The liquid absorbing core material 3 is not particularly limited, but a non-woven fabric produced by an airlaid method, a needle punching method, a spunbond method, a spunlace method or the like is suitable.

The liquid absorbing core material 3 is not particularly limited, but as shown in FIG. 11, a part in the length direction is wound around the pulling member 4 to be attached to the pulling member 4, and the resin is attached to the pulling member 4. It is inserted into the manufacturing container 1. The other portion of the liquid absorbing core material 3 in the length direction hangs down from the pulling member 4, and the lower end thereof is in contact with the bottom portion 10 of the resin container 1.

The pulling member 4 is inserted into the resin container 1 from the gap 132 of the mouth 13 of the resin container 1 and is mounted on the mouth 13 so as to be slidable in the vertical direction. By sliding the pulling member 4 upward, the liquid absorbing core material 3 is pulled up from the inside of the resin container 1. The pulling member 4 is not particularly limited, but is formed of an elastically deformable synthetic resin material. The pulling member 4 is rotatably and detachably connected to the top surface portion 20 of the cap 2 and is held by the cap 2 in a suspended state.

As shown in FIG. 11, the pulling member 4 is a frame member having a rectangular shape in front view and having an upper side portion 40 and a pair of side side portions 41. The pair of side edges 41 extend downward from both ends of the upper edge 40. Below the upper side portion 40, a pair of upper and lower beam portions (not shown) extending in parallel with the upper side portion 40 are provided between the pair of side side portions 41, and the liquid absorbing core material 3 is provided on the upper and lower pair of beam portions. Wrapped around.

The length of the upper side portion 40, that is, the length between the pair of side portions 41 is slightly smaller than the inner diameter of the mouth portion 13 of the resin container 1, whereby the pulling member 4 has the gap 132 of the mouth portion 13. Is inserted into the resin container 1 from. The upper side portion 40 is provided with an annular fitting portion 42 in which a protrusion 22 protruding downward from the top surface portion 20 of the cap 2 is rotatably fitted, whereby the pulling member 4 is rotatable and detachable with respect to the cap 2. It is possible.

At the lower ends of the pair of side sides 41, an engaging claw 43 protruding outward is provided. Each engaging claw 43 engages with the corresponding raised portion 123 of the shoulder portion 12 of the resin container 1, which will be described later, when the pulling member 4 is slid upward, and the pulling member 4 further moves upward. Restrict slide movement.

Explanation of shoulders As shown in FIGS. 1 to 7, the shoulder portion 12 of the resin container 1 has a plan-view shape that is one size larger than the mouth portion 13 and one size smaller than the body portion 11, and is the same as the body portion 11. There is a step between them. The shoulder portion 12 has a polygonal shape (12-sided shape in the present embodiment), although is not particularly limited, so as to extend downward from the upper surface portion 120 connected to the lower end of the mouth portion 13 and the outer peripheral edge of the upper surface portion 120. It includes a continuous side surface portion 121 and a horizontal and flat lower surface portion 122 that connects the lower end of the side surface portion 121 and the upper end of the body portion 11.

The upper surface portion 120 is not particularly limited, but is inclined low in the direction from the mouth portion 13 to the side surface portion 121. The upper surface portion 130 is provided with a plurality of raised portions 123 around the mouth portion 13 at intervals in the circumferential direction. The plurality of raised portions 123 are preferably arranged at equal intervals, and in the present embodiment, the two raised portions 123 are arranged at intervals of 180 degrees. The raised portion 123 is formed by raising a part of the upper surface portion 121 in a convex shape, and is located one step higher than the other portions of the upper surface portion 121. The raised portion 123 has a substantially rectangular shape in a plan view in which the length (depth) along the circumferential direction of the mouth portion 13 is larger than the length (horizontal width) in the direction in which the upper surface portion is separated from the mouth portion 13 in the radial direction. It is horizontally and flatly connected to the lower end of the mouth portion 13. As shown in FIG. 11, the raised portion 123 has the corresponding engaging claw 43 of the pulling member 4 on the upper surface portion when the pulling member 4 inserted into the resin container 1 described above is slid upward. It can be hooked and stopped, and the pulling member 4 is prevented from coming out of the resin container 1.

In addition, when the pulling member 4 inserted in the resin container 1 is slid upward without providing the plurality of raised portions 123 on the upper surface portion 120, the plurality of engaging claws 43 of the pulling member 4 are moved to the upper surface portion 120. May be engaged with. However, in this case, since the upper surface portion 120 is inclined lower toward the side surface portion 121, the plurality of engaging claws 43 of the pulling member 4 are likely to be displaced inward when engaged with the upper surface portion 120. , The engagement with the upper surface portion 120 is likely to be disengaged. On the other hand, by providing the raised portion 123 including the horizontal and flat upper surface portion on the upper surface portion 120, the plurality of engaging claws 43 of the pulling member 4 are displaced inward when engaged with the corresponding raised portion 123. It becomes difficult to do so, and the engagement with the upper surface portion 120 can be strengthened.

The side surface portion 121 is not particularly limited, but as shown in FIGS. 1 to 7, the side surface portion 121 is inclined in a hem-spreading shape so that the lower end connected to the lower surface portion 122 is located on the outer side of the upper end connected to the upper surface portion 120. .. A plurality of overhanging portions 124 are provided at the corners of the side surface portion 121 and the upper surface portion 120 at intervals in the circumferential direction. The plurality of overhanging portions 124 are preferably arranged at equal intervals, and in the present embodiment, the four overhanging portions 124 are arranged at intervals of 90 degrees. The overhanging portion 124 is formed by projecting a part of the upper surface portion 120 in a convex shape and a part of the side surface portion 121 in a convex shape to the outside, and horizontally and flatly outward from the upper surface portion 120. A horizontal portion having a rectangular shape in a plan view protruding from the horizontal portion and a vertical portion having a rectangular shape in a front view hanging from the tip of the horizontal portion are included, and the side view exhibits a substantially right-angled triangular shape.

The upper surface portion 120 and the side surface portion 121 of the shoulder portion 12 have obtuse angles. Therefore, if an impact is applied to the corners of the upper surface portion 120 and the side surface portion 121 by dropping the resin container 1 onto the floor or the like, the corners may be easily dented and the resin container 1 may be damaged. On the other hand, by providing a plurality of overhanging portions 124 at the corners of the upper surface portion 120 and the side surface portion 121, the corners of the overhanging portion 124 are at right angles and are strong against impact, and the resin container 1 is dropped on the floor or the like. Even if the above, the overhanging portion 124 is not easily dented due to the impact applied to the plurality of overhanging portions 124, and the corners of the upper surface portion 120 and the side surface portion 121 are not dented, so that the resin container 1 is suppressed from being damaged. can do.

A plurality of recesses 125 are provided at the lower ends of the side surface portions 121 at intervals in the circumferential direction. The plurality of recesses 125 are preferably arranged at equal intervals, and in the present embodiment, the four recesses 125 are arranged at 90 degree intervals and are located directly below the four overhanging portions 124. The recess 125 is formed by denting a part of the side surface portion 121 inward in a concave shape. The recess 125 is not particularly limited, but exhibits an elongated shape (horizontally long shape) extending long in the circumferential direction.

When the resin container 1 is used as the drug container of the drug volatilizer, the cover 5 is optionally attached to the resin container 1. The plurality of recesses 125 of the resin container 1 can accommodate a plurality of (four in this embodiment) convex portions 52 (shown in FIGS. 12 and 13) provided in the cover 5. As shown in FIGS. 16 and 17, details will be described later, but when the concave portion 125 hooks and stops the convex portion 52 that has entered the concave portion 125, the cover 5 attached to the resin container 1 is removed from the resin container 1. Both can be connected so that they will not come off easily.

As shown in FIGS. 6 to 8, the plurality of recesses 125 of the resin container 1 have a vertical width according to the height position and the vertical width (length in the vertical direction) of the convex portion 52 of the cover 5 that enters each of the recesses 125. (The length in the vertical direction, specifically, the length extending upward from the upper surface of the lower surface portion 122) is different. In the present embodiment, of the four recesses 125, the pair of recesses 125 (hereinafter, also referred to as “first recess 125A”) located on the front side and the back side of the resin container 1 is the resin container 1. The vertical width is larger than the pair of recesses 125 (hereinafter, also referred to as "second recess 125B") located on the left and right side surface sides.

Here, as shown in FIGS. 8 to 10, 12 and 13, the cover 5 visually recognizes the portion of the liquid absorbing core material 3 protruding from the resin container 1 from the viewpoint of the design of the drug volatilizer. To make it difficult, it is arbitrarily attached to the resin container 1. A plurality of volatilization holes 53 are formed in the cover 5, and when the cover 5 is attached to the resin container 1, the chemical component of the liquid drug volatilized from the liquid absorbing core material 3 is the volatilization holes 53 of the cover 5. It passes through and is released into the external space.

The cover 5 is not particularly limited, but is formed of an elastically deformable synthetic resin material, and includes a top surface portion 50 and a peripheral surface portion 51 hanging from the outer peripheral edge of the top surface portion 50. The top surface portion 50 and / or the peripheral surface portion 51 is formed with a plurality of volatilization holes 53 for releasing the drug component of the liquid drug sucked up and volatilized by the liquid absorbing core material 3 into the external space.

The peripheral surface portion 51 can be fitted with the shoulder portion 12 of the resin container 1 inward, and the shoulder portion 12 is fitted into the peripheral surface portion 51. At the lower end of the inner peripheral surface of the peripheral surface portion 51, a plurality of convex portions 52 protruding inward are provided at intervals in the circumferential direction. The plurality of convex portions 52 are preferably arranged at equal intervals, and in the present embodiment, the four convex portions 52 are arranged at intervals of 90 degrees. The convex portion 52 can be engaged with the corresponding concave portion 125 of the shoulder portion 12 of the resin container 1. The convex portion 52 is not particularly limited, but exhibits an elongated shape (horizontally long shape) extending long in the circumferential direction.

As shown in FIGS. 12 to 14, the plurality of convex portions 52 are provided separately at at least two different height positions in the vertical direction of the peripheral surface portion 51. That is, the plurality of convex portions 52 include a convex portion (convex portion provided at the highest height position) 52 at the position H1 where the height from the lower end of the peripheral surface portion 51 is the highest, and the lower end of the peripheral surface portion 51. There is at least a convex portion (convex portion provided at the lowest height position) 52 at the position H2 having the lowest height from the height. In the present disclosure, the convex portion 52 provided at the highest height position H1 is referred to as a first convex portion 52A, and the convex portion 52 provided at the lowest height position H2 is referred to as a second convex portion 52B. In the present embodiment, of the four convex portions 52, the convex portion 52 that enters the concave portion 125 (the first concave portion 125A having a large vertical width) located on the front side and the back side of the resin container 1 is the first convex portion 52A. The convex portion 52 that enters the concave portion 125 (second concave portion 125B having a small vertical width) located on the left and right side surface sides of the resin container 1 is the second convex portion 52B, which is the first convex portion rather than the second convex portion 52B. The portion 52A is located above. In the present embodiment, the plurality of convex portions 52 are of two types, the first convex portion 52A and the second convex portion 52B, but different height positions between the first convex portion 52A and the second convex portion 52B. Another convex portion 52 may be present in the.

Further, the plurality of convex portions 52 are divided into a plurality of types having different vertical widths (lengths in the vertical direction). That is, at least the convex portion 52 having the largest vertical width and the convex portion 52 having the smallest vertical width exist. In the present embodiment, among the four convex portions 52, the vertical width D1 of the first convex portion 52A is the largest, the vertical width D2 of the second convex portion 52B is the smallest, and the first convex portion is larger than the second convex portion 52B. 52A has a larger vertical width. In the present embodiment, the plurality of convex portions 52 are of two types, a convex portion 52 having the largest vertical width (first convex portion 52A) and a convex portion 52 having the smallest vertical width (second convex portion 52B). However, there may be other protrusions 52 having different vertical widths in between.

As shown in FIGS. 16 and 17, when the cover 5 is brought close to the resin container 1 from directly above in order to mount the cover 5 on the resin container 1, the plurality of convex portions 52 of the cover 5 first come into contact with each other. The second convex portion 52B provided at the lowest height position abuts on the shoulder portion 12 (overhanging portion 124 in this embodiment) of the resin container 1 and overcomes the shoulder portion 12 (FIG. 16A). After that, the first convex portion 52A provided at the highest height position abuts on the shoulder portion 12 (overhanging portion 124 in this embodiment) of the resin container 1 and overcomes the shoulder portion 12 (FIG. 16B). Then, after the second convex portion 52B provided at the lowest height position enters the corresponding concave portion 125 (second concave portion 125B) of the resin container 1 (FIG. 17 (C)), the highest height is reached. The first convex portion 52A provided at the position enters the corresponding concave portion 125 (first concave portion 125A) of the resin container 1 and finally engages with the concave portion 125 (first concave portion 125A) (FIG. 17D). As a result, the cover 5 attached to the resin container 1 can be fixed to the resin container 1 so that it cannot be easily removed from the resin container 1.

Further, when the cover 5 is pulled directly upward from the resin container 1 in order to remove the cover 5 from the resin container 1, although not shown, the plurality of convex portions 52 of the cover 5 first have the highest height. The first convex portion 52A provided at the position escapes from the corresponding concave portion 125 (first concave portion 125A) of the resin container 1, and then the second convex portion 52B provided at the lowest height position is made of resin. It escapes from the corresponding recess 125 (second recess 125B) of the container 1 and is finally disengaged. As a result, the cover 5 can be removed from the resin container 1.

Here, if the plurality of convex portions 52 provided on the cover 5 are all arranged at the same height, when the cover 5 is attached to the resin container 1, all the convex portions 52 of the cover 5 are made of the resin container. Since it is necessary to simultaneously enter and engage all the recesses 125 of 1, it is difficult to attach the cover 5 to the resin container 1. Further, when the cover 5 is removed from the resin container 1, it is necessary to simultaneously pull out all the convex portions 52 of the cover 5 from all the concave portions 125 of the resin container 1 to release the engagement. 5 is difficult to remove from the resin container 1.

On the other hand, in the present embodiment, the plurality of convex portions 52 are provided on the cover 5 at least at two different height positions in the vertical direction of the peripheral surface portion 51, and the cover 5 is provided in the resin container 1. At the time of mounting, all the convex portions 52 provided on the cover 5 are made to enter all the concave portions 125 of the resin container 1 all at once and are not engaged with each other. After the biconvex portion 52B) is inserted into the corresponding concave portion 125 (second concave portion 125B) as a guide, the convex portion 52 (first convex portion 52A) located at the uppermost position is inserted into the corresponding concave portion 125 (first concave portion 125A). Since it is allowed to enter and finally engage, the cover 5 can be easily attached to the resin container 1. Further, even when the cover 5 is removed from the resin container 1, all the convex portions 52 of the cover 5 are simultaneously pulled out from all the concave portions 125 of the resin container 1 so that the engagement is not disengaged, and the cover 5 is located at the uppermost position. The convex portion 52 (first convex portion 52A) is first pulled out from the corresponding concave portion 125 (first concave portion 125A), and then the convex portion 52 (second convex portion 52B) located at the lowermost position is made to correspond to the concave portion 125. Since the cover 5 is finally released from the (second recess 125B), the cover 5 can be easily removed from the resin container 1.

In addition, in the present embodiment, the first convex portion 52A to be finally engaged has a large vertical width, and is strongly engaged with the corresponding concave portion 125 (first concave portion 125A) to be strongly engaged with the concave portion 125 (first concave portion 125A). It is difficult to get out of. Therefore, when the cover 5 is attached to the resin container 1, the cover 5 can be firmly fixed to the resin container 1. For example, when the cover 5 is gripped and the resin container 1 is lifted, the cover 5 is made of resin. It is possible to prevent the container 1 from falling off.

As described above, the cover 5 is fixed to the resin container 1 by the first convex portion 52A provided at the highest height position entering and engaging with the corresponding first concave portion 125A. Therefore, it is preferable that the cover 5 includes a plurality of first convex portions 52A provided at the highest height position, and it is more preferable that the plurality of first convex portions 52A are arranged at equal intervals. In this embodiment, a pair of first convex portions 52A are arranged to face each other (every 180 degrees).

Further, as shown in FIG. 12, the first convex portion 52A preferably has a central portion 520 in the lateral width direction protruding more inward than both end portions. Since the central portion 520 of the first convex portion 52A has a long protrusion length from the inner wall surface of the peripheral surface portion 51 of the cover 5, the first convex portion is formed when the cover 5 is attached to the resin container 1. The 52A penetrates deeply into the corresponding recess 125 (first recess 125A) of the resin container 1 in the central portion and strongly engages with the recess 125 (first recess 125A). Therefore, the cover 5 can be firmly fixed to the resin container 1. The first convex portion 52A does not necessarily have to have the central portion 520 in the lateral width direction protruding more inward than both end portions.

The cover 5 can be easily attached to the resin container 1 by the second convex portion 52 provided at the lowest height position functioning as a guide. Therefore, it is preferable that the cover 5 includes a plurality of second convex portions 52B provided at the lowest height position, and it is more preferable that the plurality of second convex portions 52B are arranged at equal intervals. As a result, the cover 5 can be attached to the resin container 1 without rattling. In this embodiment, the pair of second convex portions 52B are arranged to face each other (every 180 degrees). The vertical widths of the plurality of concave portions 125 of the resin container 1 are set according to the height position and vertical width of the corresponding convex portions 52 of the cover 5 that enter each of them as described above.

Further, as shown in FIGS. 13 and 15, the second convex portion 52B is preferably provided with a notch 521 in the central portion in the lateral width direction, and is divided into two left and right portions. Since the second convex portion 52B is divided into two left and right portions, the second concave portion 52B of the cover 5 is formed when the cover 5 is attached to the resin container 1 and when the cover 5 is removed from the resin container 1. It smoothly enters the corresponding recess 125 (second recess 125B) of the resin container 1 and exits from the corresponding recess 125 (second recess 125B). Therefore, it is possible to easily attach / detach the cover 5 to / from the resin container 1. The second convex portion 52B does not necessarily have to be provided with a notch portion 521 at the central portion in the lateral width direction.

On the top surface portion 50 and the peripheral surface portion 51 of the cover 5, a plurality of volatilization holes 53 for discharging the drug component of the liquid drug sucked up and volatilized by the liquid absorbing core material 3 into the external space are formed.

Returning to the description of the shoulder portion 12 of the resin container 1, as shown in FIGS. 1 to 7, the lower surface portion 122 extends horizontally and flatly outward from the lower end of the side surface portion 121 and is connected to the upper end of the body portion 11. .. As shown in FIGS. 9 and 10, the lower surface portion 122 abuts on the lower end of the peripheral surface portion 51 of the cover 5 when the cover 5 is attached to the resin container 1. The peripheral surface portion 51 of the cover 5 has no step between the peripheral surface portion 51 and the peripheral surface portion 11 at the boundary with the body portion 11 of the resin container 1 (the lower end of the peripheral surface portion 51) over the entire circumference in the circumferential direction, that is, the peripheral surface portion 51. The contour of the bottom surface of the lower end and the contour of the upper end of the body 11 in the plan view are the same or substantially the same, and the outer wall surfaces are connected to each other in a substantially flat manner.

The peripheral surface portion 51 does not necessarily have to have a step between the peripheral surface portion 51 and the body portion 11 over the entire circumference in the circumferential direction, and the peripheral surface portion 51 is slightly between the peripheral surface portion 51 and the body portion 11 at the boundary with the body portion 11 (lower end of the peripheral surface portion 51). The outer wall surface of the peripheral surface portion 51 may be located inside or outside the outer wall surface of the body portion 11.

Description of the Body The body 11 of the resin container 1 includes facing front portions 110 and back portions 111, and facing left and right side surface portions 112 and 113, as shown in FIGS. 1 to 7. Further, the body portion 11 is a back surface located between the front surface portion 110 and the pair of front side connecting portions 114 located between the left and right side surface portions 112 and 113, and the back surface portion 111 and the left and right side surface portions 112 and 113. Further includes a pair of side connecting portions 115. The body portion 11 has the front portion 110, the connecting portion 114, the side surface portion 112, the connecting portion 115, the back portion 111, the connecting portion 115, the side surface portion 113, and the connecting portion 114 in the circumferential direction between the bottom portion 10 and the shoulder portion 12. It is formed by connecting it in a tubular shape.

The body portion 11 preferably has a flat shape in which the lateral width (length in the front-rear direction) is shorter than the lateral width (length in the left-right direction) in the front-back view. As a result, the resin container 1 can be easily gripped, the design of the resin container 1 can be improved, and a large display area of the exterior film 6 (shown in FIG. 18) is secured on the front portion 110 and the back portion 111. It is possible. Further, the height (length in the vertical direction) of the body portion 11 is preferably shorter than the horizontal width in the front-back view. As a result, the height of the resin container 1 is lowered, so that the dent of the resin container 1 can be suppressed when a negative pressure is generated inside the container as compared with the case where the height of the resin container 1 is high. It is possible. The height of the body portion 11 is preferably within twice the width of the front-back view.

The front portion 110 is composed of a plurality of panel portions 1100 arranged side by side in the left-right direction. In the present embodiment, the front portion 110 is configured by the three panel portions 1100. The panel portion 1100 is not particularly limited, but exhibits a rectangular shape in the front view that is long in the vertical direction. The plurality of panel portions 1100 are connected so that the boundary with the adjacent panel portions 1100 is angular. That is, in the cross-sectional view, the front portion 110 is connected in a V shape so that the adjacent panel portions 1100 form an obtuse angle, and exhibits a shape that is bent into a polygon as a whole. As a result, the front portion 110 has a ridge line (corner) extending in the vertical direction at the boundary between the panel portions 1100 adjacent to each other in the left-right direction. The obtuse angle created by the adjacent panel portions 1100 in the cross-sectional view of the front portion 110 does not necessarily have to be sharp, and the tip may be rounded. In this way, the front portion 110 is formed by connecting a plurality of panel portions 1100 extending in the vertical direction so as to have an angular boundary between the panel portions adjacent to each other in the left-right direction and the panel portions 1100, so that the front portion 110 is convex outward. It is said to be a bulging part that swells. The panel portion 110 extends vertically straight from the shoulder portion 12 toward the bottom portion 10 in a vertical cross-sectional view from the side surface side, and the panel portion 110 is formed on a flat surface. In the vertical cross-sectional view, the panel portion 110 may be curved outward from the shoulder portion 12 toward the bottom portion 10, and the panel portion 110 may be formed on a convex curved surface. ..

The front portion 110 is provided with a concave groove 1101 extending in the vertical direction along the boundary between adjacent panel portions 1100. The groove 1101 is formed by denting a part of the body portion 11 inward in a concave shape. The cross-sectional view shape of the groove 1101 is not particularly limited, and may have a V-shaped or U-shaped bottom with an angular bottom, but preferably a U-shaped or semicircular bottom with a rounded bottom. It has a tinged shape.

In order to manufacture the resin container 1 by injection blow molding, first, the preform is manufactured by injection molding. At this time, when the preform is molded by laminating a plurality of resin layers, the cross-sectional view of the groove 1101 is viewed. If the shape is V-shaped or the like and the bottom is angular, a gap is likely to be formed between the resin layers laminated at the portion of the groove 1101. Therefore, when the preform is taken out from the mold, a part of the resin layer may be peeled off. However, if the cross-sectional view of the groove 1101 is U-shaped or the like, the bottom is rounded. Since it is difficult for a gap to be formed between the resin layers laminated in the portion of the groove 1101, it is possible to prevent a part of the resin layer from peeling off when the preform is taken out from the mold.

Since the panel portion 1100 is sandwiched between the two grooves 1101 due to the presence of the plurality of grooves 1101 at intervals in the left-right direction on the front portion 110, the panel portion 1100 becomes a columnar rib and its mechanical strength is enhanced. Be done. In the body portion 11, the front portion 110 is a portion having a particularly large surface area, and further outwardly bulging in a convex shape, the panel portion 1100 has low mechanical strength, and negative pressure is generated in the resin container 1. And the panel part 1100 is very easy to dent. Therefore, by providing the groove 1101 at the boundary (corner) of the adjacent panel portions 1100, which is a portion having high mechanical strength in the front portion 110, the mechanical strength of the front portion 110 can be increased as a whole. The panel portions 1100 at both ends in the left-right direction are provided with grooves 1101 extending in the vertical direction along the boundary (corner) with the adjacent connecting portions 114, and the panel portions 1100 also have two grooves. It is sandwiched by the grooves 1101 to increase its mechanical strength.

The depth of the groove 1101 is not particularly limited, but if the depth is large, the mechanical strength of the panel portion 1100 can be satisfactorily improved, but if the depth is too large, it becomes difficult to mold the resin container 1. It is preferably 1 mm or more and 10 mm or less, and more preferably 2 mm or more and 4 mm or less.

The length of the groove 1101 (length in the vertical direction) is not particularly limited, but if the length is large, the mechanical strength of the panel portion 1100 can be improved as a whole, but if the length is too large, the appearance is impaired. Therefore, it is preferably 1/5 * or more and 9/10 or less of the height (length in the vertical direction) of the body portion 11, and more preferably 3/5 or more and 4/5 or less.

The width (length in the left-right direction) of the groove 1101 is not particularly limited, but if the length is too large, the width of the panel portion is reduced and the pressure absorption effect is reduced, and if the length is too small, the mechanical strength is reduced. Since it is insufficient, it is preferably 1 mm or more and 15 mm or less, and more preferably 3 mm or more and 10 mm or less.

The distance between the adjacent grooves 1101, that is, the width of the panel portion 1100 is not particularly limited, but if the distance is small, the mechanical strength of the panel portion 1100 can be satisfactorily improved, but if the distance is too small, the pressure absorption effect is obtained. Is preferably 5 mm or more and 40 mm or less, and more preferably 10 mm or more and 25 mm or less.

The groove 1101 preferably gradually widens from both ends in the vertical direction toward the center. In the panel portion 1100, the central portion in the vertical direction farthest from the corners of the shoulder portion 12 and the bottom portion 10 has particularly low mechanical strength and tends to be dented. By increasing the width of the center of the groove 1101 in the vertical direction, the mechanical strength of the central portion of the panel portion 1100 in the vertical direction can be effectively increased, and dents can be prevented. The groove 1101 does not necessarily have to gradually widen from both ends in the vertical direction toward the center, and the groove 1101 may have a uniform width over the entire length in the vertical direction.

The back surface portion 111 is not particularly limited, but the left and right side edges are curved outward in the left-right direction in a convex shape. Further, the back surface portion 111 is not particularly limited, but is curved inward from the shoulder portion 12 toward the bottom portion 10 in a vertical cross-sectional view from the side surface side, and the back surface portion 11 is formed into a concave curved surface. On the other hand, in the cross-sectional view, it is curved outward from one connecting portion 115 toward the other connecting portion 115. Since the back surface portion 111 is formed on a concave curved surface, its mechanical strength is enhanced, and the structure is such that it is difficult to dent.

As shown in FIG. 7, the back surface portion 111 preferably has the lower end portion 1110 protruding most outward in a vertical cross-sectional view from the side surface side. That is, in the back surface portion 111 which is concave and curved inward from the shoulder portion 12 toward the bottom portion 10 in the vertical cross-sectional view, the lower end portion 1110 is located outside the upper end portion 1111. As a result, in the resin container 1, as shown in FIG. 19, when the other resin containers 1 are arranged directly opposite the back surface 111, the lower end 1110 comes into contact with the other resin container 1. The upper end portion 1111 does not abut on the other resin container 1 and creates a gap between the upper end portion 1111 and the other resin container 1.

The lower end portion 1110 means a part including the lower end or a part slightly above the lower end, and the back surface portion 111 is located outside the lower end portion 1111 than, for example, the upper end portion 1111 in the vertical cross-sectional view. When tilted so as to, the lower end portion 1110 will protrude most outward. Further, when the back surface portion 111 extends substantially vertically straight from the shoulder portion 12 toward the bottom portion 10 in the vertical cross-sectional view, the back portion 111 should protrude most outward in a part below the center in the vertical direction. Just do it.

The left and right side surface portions 112 and 113 are not particularly limited, but as shown in FIG. 6, in a vertical cross-sectional view from the front side, the left and right side surface portions 112 and 113 are curved outward from the shoulder portion 12 toward the bottom portion 10. The left and right side surface portions 112 and 113 are formed on a convex curved surface, while the left and right side surface portions 112 and 113 extend horizontally straight from the connecting portion 114 toward the connecting portion 115 in a cross-sectional view. Since the left and right side surface portions 112 and 113 have a small lateral width (length in the front-rear direction), a decrease in mechanical strength thereof is suppressed, and the structure is such that it is difficult to dent.

The shape of the connecting portions 114 and 115 is not particularly limited, and is formed to connect between the front portion 110 and the left and right side surface portions 112 and 113, and between the back surface portion 111 and the left and right side surface portions 112 and 113.

Description of Bottom The bottom 10 of the resin container 1 closes the lower end of the body 11 as shown in FIGS. 1 to 7. The bottom portion 10 is not particularly limited, but the central portion 100 is raised toward the accommodation space more than the outer peripheral edge portion 101. As a result, the resin container 1 can be stably placed on a horizontal table.

Description of Exterior Film As shown in FIG. 18, the resin container 1 is wrapped with the exterior film 6 so as to cover at least the body portion 11 and the cover 5 in a state where the cover 5 is attached. The exterior film 6 is not particularly limited, but a film (shrink film) that is arranged in a cylindrical shape so as to surround the cover 5 and the body 11 and that wraps around the body 11 and the cover 5 by shrinking due to heating may be used. can. The exterior film 6 is decorated with a product name, a product description, a pattern, etc., and the area corresponding to the front portion 110 of the resin container 1 is particularly used for advertising / promotion of the product name, product appeal design, etc. Is displayed and decorated.

The exterior film 6 has an easily dividing line 62 such as a perforation between both portions 60 and 61 so that the portion 60 covering the cover 5 and the portion 61 covering the body portion 11 of the resin container 1 can be easily separated. Is provided over the entire circumference in the circumferential direction. As a result, the user separates only the portion 60 covering the cover 5 of the exterior film 6 and peels it off from the cover 5, so that the cover 5 can be removed from the resin container 1 while the resin container 1 is covered with the exterior film 6. Can be done. The easily dividing line 62 of the exterior film 6 is provided on the exterior film 6 so as to be close to the boundary (the lower end of the peripheral surface portion 51) between the body portion 11 of the resin container 1 and the peripheral surface portion 51 of the cover 5. The position of the easily dividing line 62 of the exterior film 6 does not have to completely coincide with the boundary (lower end of the peripheral surface portion 51), and may be slightly displaced in the vertical direction (for example, about 10 mm). Further, the portion 60 covering the cover 5 of the exterior film 6 is provided with an easily dividing line 63 such as a perforation perpendicular to the easily dividing line 62.

Action / Effect of Resin Container According to the resin container 1 of the present embodiment described above, the body portion 11 includes a bulging portion that bulges outward in a convex shape in the front portion 110, and the front portion 110 is in the vertical direction. A plurality of panel portions 1100 extending in the left-right direction are connected to each other so that the boundary with the adjacent panel portions 1100 is angular, and the plurality of panel portions 1100 are formed at the boundary between the adjacent panel portions 1100. A concave groove 1101 extending in the vertical direction is provided along the groove. Since a plurality of grooves 1101 are present in the front portion 110 at intervals in the left-right direction, the panel portion 1100 having low mechanical strength is sandwiched between the two grooves 1101 in the front portion 110, so that the panel portion 1100 is a columnar rib. And its mechanical strength is enhanced. Therefore, since the mechanical strength of the front portion 110 can be increased as a whole, the resin container 1 having the front portion 110 having the front portion 110 swelling outward so as to be angular and convex as a whole in the body portion 11 is a resin container. Even if negative pressure is generated in 1, the dent of the front portion 110 can be suppressed. Since the resin container 1 has a convex shape in which the front portion 110 of the body portion 11 is generally angular, the design is improved, the surface area is large, and the dents in the front portion 110 that are noticeable to the purchaser can be suppressed. , It is possible to prevent the design of the resin container 1 from being impaired.

Further, according to the resin container 1 of the present embodiment, the groove 1101 provided at the boundary between the adjacent panel portions 1100 has a U-shaped cross-sectional view. As a result, when the resin container 1 is manufactured by injection blow molding, when the preform is taken out from the mold, a part of the resin layer constituting the preform is peeled off at the portion of the groove 1101 and the preform is formed. It can prevent damage.

Further, according to the resin container 1 of the present embodiment, the groove 1101 provided at the boundary between the adjacent panel portions 1100 gradually expands in width from both ends in the vertical direction toward the center. As a result, in the panel portion 1100, the mechanical strength of the central portion in the vertical direction, which is particularly low in mechanical strength, can be effectively increased, and the panel portion 1100 can be made more difficult to dent.

Further, according to the resin container 1 of the present embodiment, the lower end portion 1110 of the back surface portion 111 of the body portion 11 protrudes most outward in the vertical cross-sectional view. As a result, as shown in FIG. 19, when the other resin containers 1 are arranged directly opposite the back surface 111, the lower end portion 1110 of the back surface 111 hits the other resin container 1. On the other hand, the upper end portion 1111 does not abut on the other resin container 1, and the boundary B between the body portion 11 and the cover 5 (the lower end of the cover 5) creates a gap S between the body portion 11 and the cover 5 and the other resin container 1. ..

Here, it is common that a plurality of resin containers 1 are transported side by side in a cardboard box in a state where a cover 5 is attached and wrapped by an exterior film 6, or a plurality of resin containers 1 are displayed side by side at a store. At this time, as shown in FIG. 20, a part of two adjacent resin containers 1'may come into contact with each other, but the boundary B between the resin container 1'and the cover 5'(the lower end of the cover 5'). When they come into contact with the adjacent resin containers 1', the easy-breaking wire 62' of the exterior film 6'is damaged by the contact. In particular, if the easily dividing line 62'of the exterior film 6'is at the boundary B between the resin container 1'and the cover 5'(the lower end of the cover 5'), the easily dividing line 62'of the exterior film 6'is damaged. As a result, it is easily damaged, and the exterior film 6'may be unintentionally broken. On the other hand, in the resin container 1 of the present embodiment, since the resin container 1 is in contact with the adjacent resin container 1 at the lower end portion 1110 of the body portion 11, the easily dividing wire 62 of the exterior film 6 is in contact with the resin container 1 and the cover 5. Even if the resin container 1 is located close to the boundary B (lower end of the cover 5), the resin container 1 adjacent to the easily dividing line 62 of the exterior film 6 does not come into contact with the resin container 1 during transportation or exhibition. It is possible to prevent the easily dividing wire 62 from being damaged and the exterior film 6 from being broken.

Further, according to the resin container 1 of the present embodiment, since the lower end portion 1110 of the back surface portion 111 of the body portion 11 protrudes to the outermost side, the exterior is made by arranging another resin container 1 directly opposite the back surface portion 111. Since the easily dividing wire 62 of the film 6 can be prevented from being damaged, the resin containers 1 can be efficiently arranged. In addition, the protruding lower end portion 1110 can be prevented from being noticed by the purchaser during the display of the resin container 1, and the deterioration of the design of the resin container 1 can be suppressed.

Further, according to the resin container 1 of the present embodiment, the back surface portion 111 of the body portion 11 is curved inwardly in a concave shape in a vertical cross-sectional view. As a result, even if the lower end portion 1110 of the back surface portion 111 protrudes to the outermost side, the design of the resin container 1 is not adversely affected.

Modifications of Resin Containers Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

In the above-described embodiment, the body portion 11 has a flat shape, but it does not necessarily have to have a flat shape.

Further, in the above-described embodiment, a bulging portion formed by connecting a plurality of panel portions 1100 so that the boundary between the adjacent panel portions 1100 is angular is provided on the front portion 110 of the body portion 11, but the body portion is provided. The bulging portion and the groove 1101 may be provided in another portion in the circumferential direction of 11. Further, the bulging portion and the groove 1101 may be provided in the entire portion of the body portion 11.

Further, in the above-described embodiment, the lower end portion 1110 of the back surface portion 111 of the resin container 1 protrudes most outward in a vertical cross-sectional view, but it does not necessarily have to protrude most outward.

Further, in the above-described embodiment, the pair of constricted portions 131 is provided in the mouth portion 13 of the resin container 1, but the pair of constricted portions 131 does not necessarily have to be provided in the mouth portion 13.

Further, in the above-described embodiment, the shoulder portion 12 of the resin container 1 is provided with a plurality of raised portions 123, overhanging portions 124, and recesses 125, but these are not necessarily provided on the shoulder portion 12.

Further, in the above embodiment, the resin container 1 is composed of a bottom portion 10, a body portion 11, a shoulder portion 12, and a mouth portion 13, but has any structure as long as the bottom portion 10 and the body portion 11 are included. May be.

Further, in the above embodiment, the resin container 1 has the cover 5 mounted on the body portion 11, but the cover 5 is mounted on the body portion 11 by fitting a part of the upper end side of the body portion 11 into the inside of the cover 5. May be attached. The peripheral surface portion 51 of the cover 5 may have no step with the body portion 11 at the lower end thereof over the entire circumference in the circumferential direction, or may have a slight step with the body portion 11.

Further, in the above-described embodiment, the plurality of convex portions 52 provided on the cover 5 are composed of a plurality of types of convex portions 52 having different height positions, but the convex portions 52 are all arranged at the same height. May be. Further, although the plurality of convex portions 52 provided on the cover 5 are composed of a plurality of types of convex portions 52 having different vertical widths, all the convex portions 52 may be formed to have the same vertical width.

1: Resin container, 10: bottom, 11: body, 110: front, 111: back, 112, 113: side, 1100: panel, 1101: groove.

Claims (4)

A resin container that houses the contents in a hollow body that rises from the outer peripheral edge of the bottom.
The body portion includes a bulging portion that bulges outward in a convex shape at least in a part in the circumferential direction.
The bulging portion is formed by connecting a plurality of panel portions extending in the vertical direction so that the boundary between the panel portions adjacent to each other in the horizontal direction is angular.
The plurality of panel portions are resin containers having a concave groove extending in the vertical direction along the boundary between adjacent panel portions. The resin container according to claim 1, wherein the groove has a rounded bottom. The resin container according to claim 1 or 2, wherein the groove gradually expands in width from both ends in the vertical direction toward the center. The body portion includes a front portion, a back portion, and left and right side surface portions, and is formed in a flat shape in which the width of the side view is smaller than the width of the front view.
The resin container according to any one of claims 1 to 3, wherein the bulging portion constitutes the front surface portion.

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