JP2000309329A - Polygonal container made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily recover to an original form without failures in appearance when dent deformation occurs on a corner of a thin container by providing linear reinforcing parts on both sides of the corner of a barrel. SOLUTION: A paralellopiped container 1 has a shoulder 4, a barrel 5 and a bottom 6 connected with a lower portion of a mouth 3. The barrel 5 comprises a front part 7, side faces 8 and chamfers 9, while stages 11, 11 are vertically provided from the front part 7 toward the side faces 8, and a resulted recessed region between them is a label face 12. linear reinforcing parts 23, 23 exhibited inwardly in the container are provided on both sides of a ridge 22 between the side face 8 and the chamfer 9 which constitute a corner of the barrel 5. Leaf-spring-like function of the reinforcing part improves shape restorability and corner strength against dent deformation. In addition, a plurality of lateral ribs 24 exhibited inwardly in the container are vertically provided on the front part 7; thereby, together with the reinforcing parts 23, preventing the label face 12 from deforming.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin polygonal container having a corner, and more particularly, to a synthetic resin polygonal container having a resilience to a dent deformation at the corner.

[0002]

2. Description of the Related Art Conventionally, a polygonal container made of synthetic resin, for example,
A biaxially stretch blow-molded container made of thermoplastic polyester such as polyethylene terephthalate (PET), commonly called a PET bottle, has excellent transparency and surface gloss, as well as impact resistance and gas barrier properties. Widely used as various containers. In addition, the container itself is easily grasped, and the contents are easily poured.
In particular, for bottles having an internal volume of 1 liter or more, there is a case where a separate handle is attached to a part of the container.

[0003]

However, in the above-mentioned conventional polygonal container made of synthetic resin, when the contents such as edible oil are filled, the contents absorb oxygen in the head space of the container after filling, and the inside of the container becomes empty. When the pressure is reduced and a load is applied to the corners from the outside during transportation or during the display of the product, dents are likely to occur, and if the dents occur, it is difficult to restore. Conventionally, this problem has been dealt with by making the wall thicker or making the apex angle of the corner corner acute.

Accordingly, an object of the present invention is to provide a thin-walled synthetic resin polygonal container which facilitates restoration to its original shape when a dent deformation occurs at a corner of the container and does not cause a defective appearance. It is in.

[0005]

Means for Solving the Problems The present invention has been proposed to achieve the above object, and has the following structure. 1. A polygonal container made of synthetic resin, wherein linear reinforcing portions are provided on both sides of a corner of a body portion. By providing the linear reinforcing portion, shape resilience against dent deformation and strength at corners are improved by the action of a leaf spring. 2. 2. The synthetic resin polygonal container according to 1, wherein a horizontal rib is provided on a front portion of the body portion. By providing the lateral ribs, the strength of the front portion of the body against the load is improved, and the front portion of the body is not significantly depressed even if the pressure is reduced in the container. 3. 4. The synthetic resin polygon container according to any one of 1 to 3, wherein a label surface is provided over a front portion, a side portion, and a chamfered portion of the body. The above-mentioned synthetic resin polygonal containers 1 and 2 have improved strength against load on the front, side, and chamfered portions of the body, and improved shape resilience against dent deformation. Not bad
It is possible to provide products with high commercial value. 4. The polygonal container made of synthetic resin according to any one of claims 1 to 3, wherein a separate handle is attached to the back of the body. When a separate handle is attached to the back of the trunk, the contents can be easily poured out, and the contents can be prevented from suddenly popping out. 5. 1 to 4 characterized in that vertical ribs are provided on side surfaces.
A polygonal container made of the described synthetic resin is provided. In particular, if a separate handle is attached to the back of the trunk, dent deformation is likely to occur locally due to pressure reduction on the side surface between the back and the linear reinforcing portion. Deformation is prevented, and the strength against axial load is improved.

[0006]

Next, an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a front view of the synthetic resin polygonal container of the present invention, FIG. 2 is a side view of the synthetic resin polygonal container of the present invention,
3 is a rear view of the synthetic resin polygonal container of the present invention, FIG. 4 is a plan view of the synthetic resin polygonal container of the present invention, FIG. 5 is a cross-sectional view taken along line AA in FIG. 2, and FIG. It is a bottom view of the synthetic resin polygon container.

The polygonal container 1 made of a synthetic resin in the form of a rectangular tube has an opening 3 on the upper part of a container body 2, and a shoulder 4, a body 5 and a bottom 6 are formed continuously below the opening. As shown in FIG. 5, the cross section of the body 5 of the container body 2 is substantially octagonal with a chamfered corner. The cross-sectional shape is a pentagon,
Any polygonal shape such as a hexagon may be used.

The body 5 comprises a front part 7, a side part 8, a chamfered part 9, and a back part 10. Steps 11, 11 are provided vertically from the front part 7 to the side part 8, and the step parts 11, 11 are provided.
The recessed area between them is used as a label surface 12 for attaching a label.
And

A separate handle 13 is provided on the back 10 of the body 5.
Is provided with a handle mounting recessed portion 14 for mounting the same.
The protrusion 16 provided on the upper part of the handle 13 is engaged with the upper wall 15 of the handle mounting recess 14, and the back wall 17 of the handle mounting recess 14 and the protruding length from the back wall 17. The mounting ring 20 of the handle 13 is fitted between the flanges 19 formed at the distal end of the circular projection 18, and the body 5
Is fixed to the handle 13.

On both sides of the ridge line 22 of the side surface portion 8 and the chamfered portion 9 constituting the corner 21 of the body 5, linear reinforcing portions 23, 23 which are recessed in the container along the ridge line 22 are provided. Can be
The linear reinforcing portions 23 are shorter than the length of the label surface 12 in the vertical direction, and are covered and hidden by the label.

The front portion 7 of the body 5 is provided with a plurality of horizontal ribs 24 depressed inward in the container in the vertical direction.
Is prevented together with the linear reinforcing portion 23. further,
Vertical ribs 25, 2 depressed inward of the container are provided on the side surface 8 of the body 5.
5 is provided to prevent dent deformation of the trunk portion 5 and improve axial load strength. Further, the vertical ribs 25 are formed on both sides of the label surface 12 so as to be longer than the length of the label surface 12 in the vertical direction, thereby preventing the dent deformation of the body 5 from reaching the label surface 12. In particular, when the separate handle 13 is attached to the back portion 10 of the body portion 5, the back portion 10 and the linear reinforcing portion 2 are attached.
Depression deformation is likely to occur locally on the side surface portion 8 between the three by the pressure reduction. However, the provision of the vertical rib 26 prevents the depression deformation and improves the strength against axial load.

A decompression absorption panel 26 is provided below the handle mounting recess 14 formed on the back surface 10 of the body 5, and when decompression occurs in the container, the decompression inside the container is reduced by the decompression absorption panel 26. Absorb.

FIGS. 7 and 8 show the linear reinforcing portions 23 and 23, respectively.
FIG. 4 is a view showing a cross-sectional shape of the vertical rib 25, and shows a linear reinforcing portion 2;
Reference numeral 3 denotes an arc-shaped concave groove which is depressed inward of the container. The vertical rib 25 has a flat bottom surface, and the depth of the linear reinforcing portion 23 is shallower and narrower than the vertical rib 25.

The material constituting the polygonal container 1 made of synthetic resin is not particularly limited. However, if it is manufactured by biaxial stretch blow molding, polyester such as polyethylene terephthalate and copolymerized polyester can be used. A resin can be exemplified.

In the synthetic resin polygonal container 1 having the above-described structure, when the container 3 is filled with contents such that edible oil or the like is depressurized after filling from the opening 3 of the container main body 2, the inside of the body 5 of the container main body 2 is opened. In addition, the depressurization that indents inward acts.

When a load acts on the corner 21 of the body 5 due to the pressing force and compression by the bottles during the transportation and transportation after filling, the corner 21 bends into the container, causing dent deformation. However, the linear reinforcing portions 23, 23 provided on both sides of the ridge line 22 of the corner 21 exert a spring action to restore the corner 21 to the original shape and prevent appearance defects. I do.

As shown in FIG. 9, the linear reinforcing portions 23 may have a convex shape projecting outward from the container.

When the linear reinforcing portions 23 are provided, the shape resilience and strength of the corners 22 are improved as described above, and the thickness of the container can be reduced.

In the above embodiment, the linear reinforcing portions 23, 23 formed on both sides of the ridge line 22 of the corner 21 are formed as one continuous line, but may be discontinuous. Also, a plurality of grooves may be provided without being limited to one, and a combination of a concave groove and a convex shape may be used.

[0021]

According to the polygonal container made of synthetic resin of the present invention, by providing linear reinforcing portions on both sides of the corner of the body, the shape resilience and strength against the dent deformation of the corner can be improved. improves.

Further, by providing a horizontal rib on the front portion of the polygonal container, even if a reduced pressure acts in the container,
The front portion is not significantly depressed.

In the above-mentioned polygonal container, a front portion of a body portion,
By forming the side surface and the chamfered portion as label surfaces, the label surface is prevented from being deformed when a label is affixed, and a product having high commercial value can be provided.

When a separate handle is attached to the back of the trunk,
The contents can be easily poured out, and unexpected jumping out of the contents can be prevented.

Since the strength of the back surface and the linear reinforcing portion of the body to which the separate handle is attached is improved with respect to the load, the dent deformation due to the reduced pressure causes the deformation of the body between the back surface and the linear reinforcing portion. Although it is likely to occur locally on the side surface portion, if a vertical rib is provided in this portion, dent deformation is prevented, and strength against axial load is improved.

[Brief description of the drawings]

FIG. 1 is a front view of a polygonal container made of synthetic resin of the present invention.

FIG. 2 is a side view of the synthetic resin polygonal container of the present invention.

FIG. 3 is a rear view of the synthetic resin polygonal container of the present invention.

FIG. 4 is a plan view of the polygonal container made of synthetic resin of the present invention.

FIG. 5 is a sectional view taken along line AA in FIG. 1;

FIG. 6 is a bottom view of the synthetic resin polygonal container of the present invention.

FIG. 7 is a view showing a cross-sectional shape of a linear reinforcing portion of the present invention.

FIG. 8 is a view showing a cross-sectional shape of a vertical groove 26 of the present invention.

FIG. 9 is a body sectional view of a synthetic resin polygonal container according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polygon container made of synthetic resin 2 Container main body 3 Mouth part 4 Shoulder part 5 Body part 6 Bottom part 7 Front part 8 Side part 9 Chamfer part 10 Back part 11 Step part 12 Label surface 13 Handle 14 Handle attachment recess 15 Upper wall 16 Projection 17 Back wall 18 Projection 19 Flange 20 Mounting ring 21 Corner 22 Ridge 23 Linear reinforcement 24 Horizontal rib 25 Vertical rib 26 Decompression absorption panel

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 3E033 AA01 BA17 BA18 CA02 CA05 CA16 DA02 DB01 DD05 DE02 DE20 EA03 EA04 EA05 FA03 GA02 3E062 AA09 AB01 HA03 HB02 HB07 HC01 KA04

Claims (5)

[Claims] 2. A polygonal container made of synthetic resin, wherein linear reinforcing portions are provided on both sides of the corner of the body. 2. The synthetic resin polygonal container according to claim 1, wherein a lateral rib is provided on a front portion of the body. 3. A label surface is provided over a front part, a side part, and a chamfered part of a body part.
A polygonal container made of the synthetic resin described in the above. 4. The synthetic resin polygonal container according to claim 1, wherein a separate handle is attached to the back of the body. 5. The synthetic resin polygonal container according to claim 1, wherein a vertical rib is provided on a side surface of the body.