JPH074308U - Plastic bottle - Google Patents

Abstract

(57) [Summary] [Purpose] Wrinkles do not occur at the top of the shrink label,
Provide a plastic bottle that does not obscure the content displayed on the shrink label. A container having a body portion, a shoulder portion, and a nozzle portion, and a shrink label provided from the body portion to the shoulder portion, wherein the body portion has a rectangular tubular shape, and the shoulder portion has an inclined tubular shape. is doing. Of the connecting portion that connects the container body and the shoulder that are in the shape of a rectangular tube, the center of the portion that connects to the wide first wall surface, especially the central portion, rises flush with the first wall surface, so the shrink label The occurrence of wrinkles in the upper part is reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plastic bottle having a rectangular cross section for filling and sealing drinking water or juice.

[0002]

[Prior art]

 A plastic bottle is formed by a biaxial stretching method, filled with drinking water or juice, and the upper end nozzle is sealed with a cap to seal the contents. The body of this packaging container is often a cylindrical shape with a circular cross-section, but recently, the container body has a long cross-section for convenience of storage in refrigerators or display cases. Many are formed in the shape of a rectangular prism.

[0003]

[Problems to be solved by the device]

 As shown in FIG. 5 to FIG. 9, such a plastic bottle 101 has a method of attaching a shrink label 107 by hanging it from a waist portion 106 at a central portion of a body portion 102 to a shoulder portion 104 as shown in FIGS. However, unlike the cylindrical body, in the case of a rectangular tubular body, the wall surface of the body is made to be a rectangle having a long side 115 and a short side 116 in a cross-sectional shape perpendicular to the center line 14 of the container. Since the shrink label wrapped around the wall 112 has a narrow wall width 112 and a wide wall surface 111, which are not all the same width, the shrink label is not constant, and the shrinkage is extremely rapid. Since the shrink label is wrinkled, the shrink label is likely to be wrinkled, and this tendency is particularly remarkable in the vicinity of the boundary between the container body 102 and the shoulder 104 continuous thereabove. Further, in the conventional rectangular tubular container, as shown in FIGS. 5 to 9, the boundary region 117 between the rectangular tubular container body and the shoulder portion above it is entirely formed on the wall surface of the container body 102. It is slanted and is configured to continue to the shoulder. However, in such a connecting part, the shrinkage of the shrinking label is increased as a result of a sharp decrease in the circumference of the connecting part with respect to the circumference of the body, and the shrinking is performed simultaneously over the entire circumference. Since the lengths of the ridges of the shoulder wall 104 and the boundary area 117 of the narrower wall surface and the wider wall surface are different, the positions of the upper edge of the shrink label are not uniform, and the upper edge 128 of the shrink label is not uniform. The lines are uneven, which deteriorates the appearance and reduces the product value.

The present invention has been made in view of the above circumstances, in which wrinkles do not occur at the upper end of the shrink label, and the edge of the upper end of the shrink label extends over the entire circumference of the shoulder portion. The purpose of the present invention is to provide a plastic bottle that does not obscure the content displayed on the shrink label and does not obscure the aesthetic appearance of the container, thereby reducing the commercial value of the container. .

[0005]

[Means for Solving the Problems]

 For this purpose, the plastic bottle of the present invention has a body part, a shoulder part continuous to the upper end of the body part through a connecting part, and a nozzle part continuous to the upper end part of the body part. A container in which a shrink label is provided over the shoulder, and the body has a pair of wide first wall surfaces and a pair of narrow second wall surfaces that form a right angle with the first wall surface. It has a rectangular tubular shape, and the shoulder portion has an inclined tubular shape, and the entire region of the connecting portion that connects the second wall surface and the shoulder portion is inclined with respect to the second wall surface. In the area where the first wall surface and the shoulder are continuous, a part of the area near the center is flush with the first wall surface, and the remaining area is inclined with respect to the first wall surface. It has a feature.

[0006]

[Action]

 Of the connecting portion that connects the rectangular barrel-shaped container body and the shoulder portion, particularly the central portion of the portion that connects to the wide first wall surface rises flush with the first wall surface. When the shrink label shrinks, a tensile force acts on the shrink label in the circumferential direction, which serves as a fulcrum to reduce the occurrence of wrinkles in the upper portion of the shrink label. As a result, the height of the surface of the shrink label becomes uniform, the upper edge of the shrink label does not become uneven, and the appearance is beautiful and the content displayed on the shrink label can be clearly displayed. it can.

[0007]

【Example】

 The details of the present invention will be described below with reference to the drawings showing an embodiment. 1 to 4, 1 is a plastic bottle. The plastic bottle 1 has a body portion 2, the lower end of the body portion 2 is closed by a bottom portion 3, the upper end of the body portion 2 is continuous with the shoulder portion 4, and the nozzle portion 5 is provided at the upper end of the shoulder portion 4. It is provided. Such a plastic bottle can be formed by a biaxial stretch blow molding method. A shrink label 7 is provided from the waist portion 6 at the center of the body portion 2 to the shoulder portion 4. This shrink label 7 is a printed display of the necessary items concerning the contents of the container. It is wrapped around the outside of the plastic bottle after it has been molded and then shrink-treated and wrapped around the outside of the plastic bottle 1. is there.

The body 2 is in the shape of a rectangular cylinder, and a pair of wide wall surfaces 11 and a pair of narrow wall surfaces 12 are positioned at right angles, and between the adjacent wall surfaces. The chamfered surface 13 is located. Therefore, when the body portion 2 is viewed in a cross section perpendicular to the center line 14, the cross sectional shape of the first wall surface 11 is the long side 15 and the second wall surface 12 having the narrow width is the short side 16. Therefore, the cross-section is formed in a rectangular shape having a long side 15 and a short side 16. The shoulder portion 4 has a conical tubular shape or a pyramidal tubular shape, and is connected to the upper end of the body portion 2 via the boundary region portion 17. Therefore, the boundary region portion 17 is in the shape of a truncated cone or a truncated polygonal cone, and its upper end is connected to the lower end of the shoulder 4 and its lower end is connected to the upper end of the body 2. Since the body portion 2 has the first wall surface 11, the second wall surface 12 and the chamfered surface 13, the boundary area portion 17 also includes the first wall surface connection portion 18, the second wall surface connection portion 21 and the chamfered surface connection. And a section 22. The first wall surface connecting portion 18 is composed of a triangular rising surface 23 in the center and an inverted triangular inclined surface 24 around the rising surface 23.

The rising surface 23 is flush with the first wall surface 11. The inclined surface 24 is inclined toward the center line with respect to the first wall surface 11. The second wall connecting portion 21 is composed of a central triangular inclined surface 25 and an inverted triangular inclined surface 26 located outside thereof, and both the inclined surfaces 25 and 26 are centered from the second wall. It is inclined toward line 14. The chamfered surface connecting portion 22 is inclined from the chamfered surface 13 toward the center line 14. A nozzle portion 5 is provided on the upper end of the shoulder portion 4, and a screw 27 for cap screwing is formed on the nozzle portion 5 if necessary. The lower edge 28 of the shrink label 7 reaches the waist 6 of the trunk, and the upper edge 31 reaches the lower end of the shoulder 4 or the upper edge of the boundary region 17.

In the plastic bottle 1 configured in this way, as shown in FIGS. 1 to 3, the rising surface 23 of the boundary region 17 rises flush with the wide first wall surface 11. Therefore, when the shrink label 7 is shrunk, the rising surface 23 serves as a fulcrum for contraction of the shrink label 7, and the shrink label 7 reaching the lower end of the shoulder portion 4 or the upper end of the boundary area portion 17 has a rising surface 23. After that, it gradually contracts over the entire circumference. As a result, the height position of the lower end of the shoulder portion 4 is substantially uniform over the entire circumference, and the upper edge of the shrink label located there is also uniform in height over the entire circumference, so that a beautiful appearance can be provided. .

[0011]

[Effect of device]

 As described above, according to this invention, when the shrink label shrinks, a rising surface flush with the wide wall serves as a fulcrum, and a tensile force acts on the shrink label in the circumferential direction, so that the shrink label gradually shrinks. Therefore, a wrinkle does not occur at the upper end portion of the shrink label, and the upper edge of the shrink label is at the same height position, so that a plastic bottle having a beautiful appearance can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of a plastic bottle.

FIG. 2 is a side view of a plastic bottle.

FIG. 3 is a plan view of a plastic bottle.

FIG. 4 is a bottom view of the plastic bottle.

FIG. 5 is a front view of a conventional plastic bottle.

FIG. 6 is a side view of a conventional plastic bottle.

FIG. 7 is a plan view of a conventional plastic bottle.

8 is a sectional view taken along line BB in FIG.

FIG. 9 is a bottom view of a conventional plastic bottle.

[Explanation of symbols] 1 plastic bottle 2 body part 3 bottom part 4 shoulder part 5 nozzle part 6 body part waist 7 shrink label 11 first wall surface 12 second wall surface 13 chamfered surface 14 center line 15 long side 16 short side 17 boundary Area part 18 1st wall surface connection part 21 2nd wall surface connection part 22 Chamfering surface connection part 23 Rise surface 24 Slope 25 Slope 26 Slope 27 Screw 28 Lower edge (shrink label) 31 Upper edge (shrink label)

Claims (1)

[Scope of utility model registration request] 1. A trunk portion, a shoulder portion that is continuous with an upper end of the body portion via a connecting portion, and a nozzle portion that is continuous with an upper end of the shoulder portion, and a shrink label is provided from the body portion to the shoulder portion. In the container provided, the body is a rectangular tube shape having a pair of wide first wall surfaces and a pair of narrow second wall surfaces that form a right angle with the first wall surface, The shoulder portion has an inclined tubular shape, and the entire region of the connecting portion that connects the second wall surface and the shoulder portion is inclined with respect to the second wall surface. In the area where the first wall surface and the shoulder portion are continuous, a part of the area near the center is flush with the first wall surface, and the remaining area is inclined with respect to the first wall surface. A plastic bottle characterized by that.