JP4990695B2 - Bottle - Google Patents

Description

  The present invention relates to a synthetic resin bottle in which a label is wound around a body portion.

As a bottle of this type, the mouth, shoulder, body and bottom are integrally formed of synthetic resin, and the body portion has a panel portion recessed radially inwardly in the circumferential direction of the body portion. There is known a configuration in which a plurality are provided at intervals. In this way, by providing the panel portion on the body portion, it is possible to prevent the body portion from bulging and deforming when the bottle is filled with high-temperature contents, that is, to provide heat resistance performance or to be sealed to the bottle. When the temperature of the contents is lowered, the body part is prevented from being deformed by depression, that is, a reduced pressure absorption performance is provided.
JP 2006-240728 A

By the way, in recent years, many bottles with labels wrapped around the body have been provided. Due to the uneven shape on the outer peripheral surface of the body due to the formation of the panel on the body, the label can be made smooth with less unevenness. There was a problem that it was difficult to wrap around the part.
In order to solve this problem, if the size of the panel portion is simply reduced, the heat resistance performance and the reduced pressure absorption performance described above are lowered.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bottle that can smoothly wrap a label around a body portion with less unevenness while ensuring heat resistance performance and reduced pressure absorption performance. .

In order to solve the above problems and achieve such an object, the bottle of the present invention has a mouth portion, a shoulder portion, a trunk portion and a bottom portion which are integrally formed of a synthetic resin. A plurality of panel portions recessed radially inward are provided at intervals in the circumferential direction of the trunk portion, and a synthetic resin in which a label is wound while a column portion is formed between adjacent panel portions in the circumferential direction. The panel portion extends in a direction inclined with respect to the central axis of the bottle, the bottom surface of the panel portion divides the panel portion into a plurality, and the column portion The auxiliary column part located radially inwardly protrudes, and the panel part is partitioned by the auxiliary column part into a main panel surface and a sub panel surface having a smaller area than the main panel surface. Features.
According to the present invention, since the auxiliary column portion protrudes from the panel portion, even if a portion positioned on the panel portion in the label wound around the trunk portion is greatly depressed, this portion is used as the auxiliary column portion. The label can be smoothly wound around the trunk portion with little unevenness.
Further, since the panel portion extends in a direction inclined with respect to the central axis of the bottle, not only the bulging deformation and depression deformation of the panel portion but also the entire body portion when the bottle internal pressure increases and decreases, respectively. Can be torsionally deformed around the central axis, and a decrease in heat resistance and reduced pressure absorption performance due to the provision of the auxiliary column portion on the panel portion can be compensated.
As described above, the label can be smoothly wound around the body portion with less unevenness while ensuring heat resistance performance and reduced pressure absorption performance.

Here, the auxiliary column part may extend in a direction opposite to the inclination direction of the panel part.
In this case, since the auxiliary column portion extends in the direction opposite to the inclination direction of the panel portion, it is possible to suppress the increase in the length of the auxiliary column portion and the decrease in the rigidity thereof. It is possible to prevent the auxiliary pillar portion from being bent following the depression deformation of the panel portion.
Further, since the auxiliary column portion extends in the direction opposite to the inclination direction of the panel portion, the extending direction of the auxiliary column portion is a direction in which the entire body portion is torsionally deformed around the central axis during decompression. Vice versa. Therefore, even if the label wound around the barrel portion is torsionally deformed following the torsional deformation around the central axis of the entire barrel portion at the time of decompression, and the wrinkle is generated on the label, the label is the top of the auxiliary column portion. By abutting on the surface, it is possible to generate a frictional force in a direction in which wrinkles are stretched and canceled between the top surface of the auxiliary column part and the label, and the generation of wrinkles can be suppressed.

  According to the bottle of the present invention, the label can be smoothly wound around the trunk portion with less unevenness while ensuring the heat resistance performance and the reduced pressure absorption performance.

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the bottle 10 according to the present embodiment includes a mouth part 11, a shoulder part 12, a body part 13, and a bottom part 14, and these 11, 12, 13, and 14 have a common central axis. In a state of being positioned on the shaft, the general configuration is such that the common shaft direction is continuously arranged in this order from the upper side to the lower side. The bottle 10 is integrally formed of a synthetic resin such as polyethylene terephthalate by, for example, biaxial stretch blow molding. A male screw portion 11a is formed on the outer peripheral surface of the mouth portion 11, and a cap (not shown) is detachably screwed onto the male screw portion 11a. Further, a label such as a shrink label (not shown) is wound around the body portion 13.
Here, in the present embodiment, the shoulder portion 12, the body portion 13 and the bottom portion 14 have a circular cross-sectional shape, and the common axis is a straight line passing through a circular central portion formed by the cross-sectional shape. Yes. Hereinafter, this common axis is referred to as a central axis O.

  In the illustrated example, the body portion 13 is formed at a cylindrical portion 13a continuous with the lower end of the shoulder portion 12, an upper annular groove 13b continuous with the lower end of the cylindrical portion 13a, and a lower end of the upper annular groove 13b. The upper annular rib 13c that is continuously provided, the cylindrical trunk body 13d that is continuously provided at the lower end of the upper annular rib 13c, the lower annular rib 13e that is continuously provided at the lower end of the trunk body 13d, and the lower side A lower annular groove 13f provided continuously with the lower end of the annular rib 13e.

 The body portion 13d of the body portion 13 is provided with a plurality of panel portions 17 recessed radially inwardly at intervals in the circumferential direction of the body portion 13, and adjacent panel portions 17 in the circumferential direction. The space between the two is the column portion 19. In the illustrated example, four panel portions 17 are formed at equal intervals in the circumferential direction on the body main body 13d.

 Moreover, each panel part 17 is equivalent to the length of the trunk body 13d in the direction of the central axis O. Thereby, each pillar part 19 formed in the trunk | drum main body 13d is arrange | positioned between each panel part 17 comrades.

And in this embodiment, the panel part 17 is extended in the direction a which inclines with respect to the central axis O of this bottle 10, The panel part 17 is divided into plurality in the bottom face of this panel part 17, and Auxiliary column portion 18 is provided so as to protrude from the column portion 19 inward in the radial direction. In addition, the column portion 19 extends along the inclined direction a similarly to the panel portion 17.
Here, in the illustrated example, each panel portion 17 is formed in a parallelogram shape in a side view of the body portion 13. Of the peripheral edges that define the panel portion 17, side edge edges 17a and 17b located on both sides in the circumferential direction extend along the inclined direction a and are located on both sides in the central axis O direction. Upper and lower edges 17c, 17d extend along the circumferential direction.

 Moreover, in this embodiment, the auxiliary | assistant pillar part 18 is extended in the reverse direction to the said inclination direction a. The lower end of the auxiliary column 18 is connected to a corner 17 e that connects one side edge (right side in the illustrated example) 17 a and the lower edge 17 d of the peripheral edge of the panel portion 17, and the upper end of the auxiliary column 18. Is connected to the upper portion of the other side end edge (left side in the illustrated example) 17b. Accordingly, the panel portion 17 has a substantially inverted isosceles triangle shape that is long in the direction of the central axis O in which the base is located at the upper edge 17c and one of the isosceles sides is located at the one side edge 17a. The main panel surface 21 and the sub-panel surface 22 having a substantially isosceles triangle shape that is long in the direction of the central axis O, in which the base is located at the lower end edge 17d and one of the isosceles sides is located at the other side edge 17b. And is divided into two. Further, in the illustrated example, the main panel surface 21 has a larger area than the sub panel surface 22.

As described above, according to the bottle 10 according to the present embodiment, since the auxiliary column part 18 protrudes from the panel part 17, the part positioned on the panel part 17 in the label wound around the body part 13 is Even if a large depression is intended, this portion can be supported by the top surface of the auxiliary column portion 18, and the label can be smoothly wound around the trunk portion 13 with little unevenness.
Further, since the panel portion 17 extends in the direction a inclined with respect to the central axis O of the bottle 10, only the bulging deformation and the depression deformation of the panel portion 17 are caused when the bottle internal pressure is increased and decreased, respectively. It is also possible to torsionally deform the entire body portion 13 around the central axis O, and it is possible to compensate for the decrease in heat resistance performance and reduced pressure absorption performance due to the provision of the auxiliary column portion 18 in the panel portion 17. .
As described above, the label can be smoothly wound around the body portion 13 with less unevenness while ensuring heat resistance performance and reduced pressure absorption performance.

Moreover, in this embodiment, since the auxiliary | assistant pillar part 18 is extended in the reverse direction to the said inclination direction a, it can suppress that the length of the auxiliary | assistant pillar part 18 becomes large and the rigidity becomes small. Thus, the auxiliary pillar portion 18 can be prevented from being bent following the depression deformation of the panel portion 17 during decompression.
Further, since the auxiliary column portion 18 extends in the direction opposite to the inclining direction a, the extending direction of the auxiliary column portion 18 is such that the entire body portion 13 is twisted around the central axis O during decompression. It is the opposite of the direction of deformation. Therefore, even if the label wound around the trunk portion 13 follows the torsional deformation around the central axis O of the entire barrel portion 13 during decompression, the label is not supported by the auxiliary column portion even if wrinkles are generated in the label. By abutting on the top surface of 18, it becomes possible to generate a frictional force in the direction of extending and canceling the wrinkles between the top surface of the auxiliary column part 18 and the label, and the generation of wrinkles can be suppressed. .

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, both end portions of the panel portion 17 in the direction of the central axis O may or may not be connected to the upper annular rib 13c and the lower annular rib 13e.
Further, the auxiliary column part 18 is not limited to the above-described embodiment, and may extend along, for example, the inclined direction a, the central axis O direction, or the circumferential direction of the body part 13.

Furthermore, in the said embodiment, although the one auxiliary | assistant pillar part 18 was provided in the panel part 17, you may provide two or more.
Moreover, the shape of the panel part 17 and the shape which divided the panel part 17 by the auxiliary | assistant pillar part 18 will not be restricted to the said embodiment, if the panel part 17 is extended along the said inclination direction a. Absent.
Furthermore, as long as the auxiliary column part 18 is formed in at least one of the plurality of panel parts 17, it may not be formed in all the panel parts 17 as in the above-described embodiment.

 The label can be smoothly wound around the body portion with less unevenness while ensuring heat resistance performance and reduced pressure absorption performance.

It is a side view of the bottle shown as one embodiment concerning the present invention. It is AA arrow sectional drawing of the bottle shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bottle 11 Mouth part 12 Shoulder part 13 Body part 14 Bottom part 17 Panel part 18 Auxiliary pillar part 19 Column part 21 Main panel surface 22 Subpanel surface a Inclining direction O Center axis

Claims (2)

The mouth, shoulder, trunk and bottom are integrally formed of synthetic resin,
In the body portion, a plurality of panel portions that are recessed inward in the radial direction are provided at intervals in the circumferential direction of the body portion, and between adjacent panel portions in the circumferential direction are column portions, A bottle made of synthetic resin around which a label is wound,
The panel portion extends in a direction inclined with respect to the central axis of the bottle, and the bottom surface of the panel portion divides the panel portion into a plurality and is positioned radially inward from the column portion. Auxiliary pillars to project ,
The said panel part is divided by the said auxiliary | assistant pillar part into the main panel surface and the subpanel surface whose area is smaller than this main panel surface . The bottle according to claim 1,
The bottle characterized in that the auxiliary column part extends in a direction opposite to the inclination direction of the panel part.

Images