JP5033574B2 - Bottle - Google Patents

Description

  The present invention relates to a synthetic resin bottle.

  As a schematic configuration of this type of bottle, a configuration including a bottom portion, a trunk portion, a shoulder portion, and a mouth portion is generally known. As a general shape of such a bottle, the body portion has a cylindrical shape or a rectangular tube shape, and the shoulder portion has a tapered shape gradually reduced in diameter toward the mouth side. However, in recent years, it has been desired to have originality in the bottle shape, and a part of the bottle is made spherical, and a convex curved surface bulging outward in the bottle radial direction is formed on a part of the outer peripheral surface of the bottle. A configuration with a different configuration has been proposed.

Conventionally, as a synthetic resin bottle, a configuration in which a spherical lens-like convex curved surface is formed on the outer peripheral surface of a bottle body as shown in Patent Document 1 below is known. In this bottle, a circular concave portion is formed on the outer peripheral surface of the body portion, and a convex lens is formed by fitting a spherical lens in the concave portion.
Japanese Patent Laid-Open No. 9-124023

  However, in the conventional bottle described above, the light transmitted through the bottle is focused by the convex curved lens effect, which may cause an unexpected disaster. In order to prevent light from condensing by diffusing light, a method of performing blasting such as sand blasting on the convex curved surface can be considered. However, in this method, the convex curved surface is clouded and the transparency is greatly lowered. When a translucent label is attached to such a cloudy convex curved surface, there arises a problem that the aesthetic appearance of the label is significantly impaired.

  The present invention takes the above-described conventional problems into consideration, can prevent light condensing by a convex curved surface, and does not greatly impair the aesthetics even if a translucent label is attached to the convex curved surface. The purpose is to provide bottles.

Bottle according to the present invention is a synthetic resin bottle convex curved surface is formed to have a transparency that bulges in a bottle radially outward, the convex curved surface, granular recesses or protrusions is formed with a plurality The diameter D of the concave portion or the convex portion is set in a range of 0.5 mm ≦ D ≦ 3.0 mm .
With such a feature, light is diffused by being diffused by the concave portion or the convex portion. In addition, since a plurality of granular concave portions or convex portions are formed on the convex curved surface, a decrease in transparency on the convex curved surface can be suppressed.

The diameter D of the previous SL concave portions or convex portions, that is set to within a range of 0.5 mm ≦ D ≦ 3.0 mm.
If the diameter D of the concave portion or convex portion is too small, the shape of the concave portion or convex portion of the mold surface used at the time of bottle molding is hardly transferred to the bottle, and the convex curved surface becomes a smooth surface or a non-uniform corrugated surface. However, as described above, by setting the diameter D of the concave or convex portion to 0.5 mm or more, the resin can easily enter the concave and convex portions of the mold surface without reducing the production efficiency. The shape of the concave portion or convex portion is clearly formed. Further, if the diameter D of the concave portion or the convex portion is too large, the above-described light diffusing action is not sufficiently exerted, but as described above, the diameter D of the concave portion or the convex portion is set to 3.0 mm or less. Is sufficiently diffused.

Moreover, it is preferable that the bottle which concerns on this invention sets the total area of the said several recessed part or convex part in the range of 30%-70% with respect to the surface area of the said convex curved surface.
As a result, if the total area of the concave or convex portions is too small relative to the surface area of the convex curved surface, the above-described light diffusing action is not sufficiently exhibited, but as described above, the total area of the concave or convex portions is convex. By making the surface area 30% or more of the curved surface, light is sufficiently diffused. In addition, if the total area of the concave portions or convex portions is too large relative to the surface area of the convex curved surface, the interval between the adjacent concave portions or convex portions is reduced, and the shape of the concave portion or convex portion on the mold surface used at the time of bottle molding is bottle. However, as described above, by making the total area of the recesses or projections 70% or less of the surface area of the convex curved surface, the shape of the recesses or projections is clear without reducing the production efficiency. To be molded.
The above-mentioned “total area” refers to the total sum of the flat areas of the recesses or protrusions seen from the side of the bottle.

  According to the bottle according to the present invention, light is diffused by the concave portion or the convex portion formed on the convex curved surface, and therefore, condensing by the convex curved surface can be prevented. In addition, the convex curved surface in which the granular concave portion or convex portion is formed, since the decrease in transparency is suppressed, the aesthetic appearance is not greatly impaired even if a translucent label is attached to the convex curved surface, The aesthetics of the label can be secured.

  Hereinafter, embodiments of the bottle according to the present invention will be described with reference to the drawings.

1 is a side view of the bottle 1 as viewed from the side, and FIG. 2 is an enlarged view of a portion A shown in FIG.
The chain line L shown in FIG. 1 is the bottle axis L that is the central axis of the bottle 1, and in the present embodiment, the mouth 5 side in the bottle axis L direction (upper side in FIG. 1) is the upper side, The bottom 3 side (the lower side in FIG. 1) is the lower side.

  The bottle 1 is a round bottle having a circular shape when viewed from the top of the bottle. As shown in FIG. 1, the bottle 1 has a substantially cylindrical body portion 2 extending along the bottle axis L, and is provided below the body portion 2. A bottom portion 3, a shoulder portion 4 provided above the trunk portion 2, and a mouth portion 5 provided continuously to the upper end portion of the shoulder portion 4 and extending upward. The body 2, the bottom 3, the shoulder 4 and the mouth 5 are made of synthetic resin such as polyethylene terephthalate (PET), for example, and are integrally formed with the bottle shaft L as a common shaft. Between the above-described body portion 2 and shoulder portion 4, a waist portion 6 that is recessed inward in the bottle radial direction is formed over the entire circumference of the bottle.

  In the bottle 1 described above, a transparent spherical portion 8 is formed, in which a convex curved surface 7 having an arc shape in a longitudinal sectional view bulging outward in the bottle radial direction is continuously formed over the entire circumference of the bottle. . More specifically, the shoulder 4 of the bottle 1 has a spherical shape. That is, the shoulder portion 4 is gradually enlarged in diameter from the waist portion 6 to the middle portion of the shoulder portion 4 and gradually reduced in diameter from the middle portion of the shoulder portion 4 to the mouth portion 5. ing.

  As shown in FIGS. 1 and 2, a plurality of granular concave portions 9 are formed on the convex curved surface 7 (the surface of the spherical portion 8). The recess 9 is a circular recess recessed inward of the bottle, and is formed on the convex curved surface 7 by, for example, embossing. Further, the recesses 9 are arranged substantially evenly on the entire surface of the sphere 8.

Specifically, as shown in FIG. 2, the plurality of recesses 9 are linearly aligned in the bottle circumferential direction (lateral direction in FIG. 2) and staggered in the vertical direction (vertical direction in FIG. 2). It is arranged. A plurality of recesses 9 are disposed at the same interval in the bottle circumferentially center distance P ₁ recess 9 adjacent the bottle circumferential direction is equal. Further, a plurality of recesses 9 are vertically are arranged at the same interval, the center-to-center distance P ₂ of the recess 9 adjacent in the vertical direction are equal.

Further, the diameter D (maximum width) of the recess 9 is set within a range of 0.5 mm ≦ D ≦ 3.0 mm, and more preferably 2.0 mm or less.
Further, the diameter D of the concave portion 9 is gradually decreased as the diameter D of the concave portion 9 is separated from the maximum diameter portion 8 a of the spherical body portion 8. That is, the plurality of recesses 9A formed in the maximum diameter portion 8a has the largest diameter, and the recesses 9B adjacent in the vertical direction have a smaller diameter than the recesses 9A, and the recesses 9B have a smaller diameter than the recesses 9B. The concave portion 9C adjacent in the vertical direction has a smaller diameter. Thereby, the some recessed part 9 can be regularly arranged with respect to the convex curve 7. FIG. The above-mentioned “maximum diameter portion 8a” refers to a portion of the spherical portion 8 having the longest circumferential length in a horizontal sectional view (cut surface perpendicular to the bottle axis L).

Moreover, since the shape of the part corresponding to the recessed part 9 among the metal mold | die used at the time of shaping | molding of the bottle 1 will become difficult to be transferred to the bottle 1, and the shape of the recessed part 9 will become difficult if the depth of the recessed part 9 is too deep, The depth of the recess 9 is preferably set to 0.5 mm or less. Thereby, the shape of the recessed part 9 can be taken out clearly, without reducing production efficiency.
The total area of all the concave portions 9 formed on the convex curved surface 7 is preferably set within a range of 30% to 70% with respect to the entire surface area of the convex curved surface 7.

  According to the bottle 1 having the above-described configuration, when the bottle 1 is irradiated with light and the light is emitted from the convex curved surface 7, the emitted light is irregularly reflected by the plurality of concave portions 9 formed on the convex curved surface 7. Diffused. Thereby, the condensing by the convex curved surface 7 can be prevented.

  Further, the convex curved surface 7 in which a plurality of granular concave portions 9 are formed is suppressed from being lowered in transparency as compared with the convex curved surface subjected to sandblasting or the like. Thereby, even if a translucent label is stuck on the convex curved surface 7, the aesthetic appearance is not greatly impaired, and the aesthetic appearance of the label can be ensured.

  In addition, by setting the diameter D of the recess 9 within the range of 0.5 mm ≦ D ≦ 3.0 mm, the shape of the recess 9 appears clearly and the light is sufficiently diffused without reducing the production efficiency. . Thereby, condensing can be prevented reliably.

  In addition, by setting the total area of the concave portion 9 within a range of 30% to 70% with respect to the surface area of the convex curved surface 7, the light is sufficiently diffused, and the concave portion or the convex portion is reduced without reducing the production efficiency. The shape of the part appears clearly. Thereby, condensing can be prevented reliably.

As mentioned above, although embodiment of the bottle which concerns on this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, as illustrated in FIG. 1, the bottle 1 in which only the shoulder portion 4 has a spherical shape and has only one sphere portion 8 has been described. However, the present invention includes a plurality of spheres. The bottle which has the part 8 may be sufficient. For example, as shown in FIG. 2, the shoulder portion 4 of the bottle 101 may be formed in a spherical shape, and the upper portion of the body portion 102 of the bottle 101 may be formed in a spherical shape. In other words, a configuration may be adopted in which a plurality of spherical portions 108 are connected in the bottle axis L direction.

  Moreover, in above-described embodiment, the bottle which has the spherical part 8 which has the transparency by which the convex curved surface 7 of the cross-sectional view circular arc bulging to the bottle radial direction outer side is continuously formed over the perimeter of a bottle. However, the present invention may be any bottle having a convex curved surface that bulges outward in the bottle radial direction, and may have a configuration in which a dome-shaped convex curved surface protrudes from the outer peripheral surface of the bottle. Good.

Further, in the above-described embodiment, the concave surface 9 that is recessed toward the bottle inward side is formed on the convex curved surface 7. However, in the present invention, the convex portion that protrudes outward from the bottle is used instead of the concave portion 9. It may be formed, or the above-mentioned convex part and concave part 9 may be formed respectively.
In the embodiment described above, the circular concave portion 9 is formed on the convex curved surface 7. However, the present invention may be an elliptic concave portion 9 or a convex portion, or may be a polygonal concave portion 9. Or a convex portion.

  In the above-described embodiment, the plurality of concave portions 9 are linearly aligned in the bottle circumferential direction and are arranged in a staggered manner in the vertical direction. For example, the concave portion 9 may be configured to be linearly aligned in the bottle circumferential direction and the vertical direction.

  Further, in the above-described embodiment, the plurality of concave portions 9 are arranged substantially evenly on the entire convex curved surface 7, but in the present invention, even if a plurality of concave portions 9 are formed on a part of the convex curved surface 7. For example, the some recessed part 9 may be formed only in the part of the spherical part 8 near the largest diameter part 8a. In the present invention, the plurality of recesses 9 may be arranged unevenly. For example, the plurality of recesses 9 may be arranged at random, or the arrangement pattern of the recesses 9 may be partially changed.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a side view of the bottle 1 for demonstrating embodiment of this invention. It is an enlarged view of A part shown in FIG. It is a side view of the bottle 101 for demonstrating other embodiment of this invention.

Explanation of symbols

1, 101 Bottle 7 Convex surface 9 Concave portion

Claims (2)

In the bottle made of synthetic resin in which a convex curved surface having transparency that bulges outward in the bottle radial direction is formed,
The convex curved surface is formed with a plurality of granular concave portions or convex portions ,
The diameter of the said recessed part or convex part is set in the range of 0.5 mm <= D <= 3.0mm, The bottle characterized by the above-mentioned. The bottle of claim 1 ,
The total area of the said several recessed part or convex part is set in the range of 30%-70% with respect to the surface area of the said convex curved surface, The bottle characterized by the above-mentioned.

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