JP2011157086A - Bottle - Google Patents

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Publication number
JP2011157086A
JP2011157086A JP2010018676A JP2010018676A JP2011157086A JP 2011157086 A JP2011157086 A JP 2011157086A JP 2010018676 A JP2010018676 A JP 2010018676A JP 2010018676 A JP2010018676 A JP 2010018676A JP 2011157086 A JP2011157086 A JP 2011157086A
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JP
Japan
Prior art keywords
portion
bottle
lower
waist
straight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2010018676A
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Japanese (ja)
Inventor
Hiroaki Imai
Junichi Itokawa
宏明 今井
淳一 糸川
Original Assignee
Yoshino Kogyosho Co Ltd
株式会社吉野工業所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshino Kogyosho Co Ltd, 株式会社吉野工業所 filed Critical Yoshino Kogyosho Co Ltd
Priority to JP2010018676A priority Critical patent/JP2011157086A/en
Publication of JP2011157086A publication Critical patent/JP2011157086A/en
Application status is Pending legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To prevent its appearance from being easily spoiled due to deformation of the lower connecting portion of a body, even when a bottle has a reduced thickness. <P>SOLUTION: The bottle 1 is made of a synthetic resin material in the form of a bottomed cylinder. The body 13 is formed with a waist portion 15 narrowing toward the inside of the bottle in its radial direction, over the entire circumference of the body. A lower connecting portion 20 extending to the waist portion 15 of the body 13 from the lower side, includes a straight portion 21 extending in the direction of the bottle axis O. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bottle.

  Conventionally, for example, as shown in Patent Document 1 below, a synthetic resin material is formed into a bottomed cylindrical shape, and a waist portion that is recessed toward the inside in the bottle radial direction is formed on the entire circumference of the body portion. Bottles are known.

No. 7-16581

  However, in the conventional bottle, for example, when it is thinned to reduce the weight, the lower continuous portion connected to the waist portion from the lower side in the trunk portion is depressed, for example, by the applied compressive force in the bottle radial direction. There is a risk that poor appearance is likely to occur, such as no restoration and deformation.

  The present invention has been made in consideration of such circumstances, and provides a bottle that can suppress the occurrence of poor appearance due to deformation of the lower side continuous portion of the body portion even if it is thin. With the goal.

  In order to solve the above-described problems and achieve such an object, the bottle of the present invention is a bottle formed of a synthetic resin material in a bottomed cylindrical shape, and the bottle portion has an inner side in the bottle radial direction. A waist portion that is recessed toward the bottom is formed over the entire circumference, and a straight portion that extends along the bottle axial direction is provided in the lower continuous connection portion that continues from the lower side to the waist portion in the trunk portion. And

According to the present invention, since the straight portion is provided in the lower continuous portion of the body portion, it is easy to disperse the compressive force in the bottle radial direction applied to the lower continuous portion in the bottle axial direction. Is possible. Therefore, even if the lower side connecting portion is recessed in the bottle radial direction, it can be easily restored and deformed. Thereby, even if the bottle is thin, it is possible to prevent the appearance defect from easily occurring due to the deformation of the lower continuous portion of the body portion.
Furthermore, since the straight portion is provided in the lower connecting portion, it is possible to distribute the entire portion of the bottle evenly by allowing the straight portion to receive the compressive force applied to the bottle in the axial direction of the bottle. Further, the buckling strength of the bottle can be improved by preventing the lower continuous portion from being crushed in the bottle axial direction.

  Here, in the lower continuous connection portion, the upper connection portion connected to the waist portion is formed in a convex curved surface shape whose diameter is gradually expanded toward the lower side, and the straight portion is formed of the upper connection portion. It may be connected to the lower end.

  In this case, since the straight portion of the lower connecting portion and the waist portion are connected via the upper connecting portion of the lower connecting portion formed in a convex curved surface shape, the straight portion and the waist portion are By connecting smoothly, it is possible to prevent the occurrence of a portion where a large load is concentrated locally between the two, and the compressive force in the bottle radial direction applied to the lower connecting portion is passed through the straight portion. It becomes possible to make it easy to convey to the upper connection portion, and the above-described operation and effect are more reliably achieved.

  The straight portion may be a maximum outer diameter portion of the bottle.

  In this case, since the straight portion is the maximum outer diameter portion of the bottle and is a portion that is easily subjected to the compressive force in the bottle radial direction, the above-described effects are effectively achieved.

  According to the present invention, even when the bottle is thin, it is possible to suppress the appearance defect from easily occurring due to the deformation of the lower continuous portion of the body portion.

It is a side view of the bottle shown as one embodiment concerning the present invention.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the bottle 1 according to this embodiment includes a mouth portion 11, a shoulder portion 12, a trunk portion 13, and a bottom portion 14, and these 11 to 14 are positioned on a common axis with their respective central axes. In this state, it is a schematic configuration that is continuously arranged in this order.
Hereinafter, the common axis is referred to as the bottle axis O, the mouth 11 side along the bottle axis O direction is referred to as the upper side, the bottom 14 side is referred to as the lower side, and the direction orthogonal to the bottle axis O is referred to as the bottle radial direction. The direction of circling around the bottle axis O is referred to as the bottle circumferential direction.
The bottle 1 is integrally formed of a synthetic resin material such as polyethylene terephthalate by, for example, biaxial stretch blow molding. Further, a cap (not shown) is attached to the mouth portion 11. Further, each of the mouth part 11, the shoulder part 12, the body part 13, and the bottom part 14 has a circular shape in a cross-sectional view orthogonal to the bottle axis O.

A waist portion 15 that is recessed toward the inner side in the bottle radial direction is formed on the body portion 13 over the entire circumference. In this embodiment, the waist part 15 is arrange | positioned in the center part of the bottle axis | shaft O direction in the trunk | drum 13. As shown in FIG.
A plurality of panel surface portions 16 that are recessed toward the inner side in the bottle radial direction are formed in the upper body portion 13a located above the waist portion 15 in the body portion 13 at intervals in the bottle circumferential direction. In the illustrated example, each panel surface portion 16 is formed in a rectangular shape that is long in the bottle axis O direction in a side view of the bottle 1.
A plurality of annular grooves 17 that are recessed toward the inner side in the bottle radial direction and that extend over the entire circumference are formed in the lower body part 13b that is located below the waist part 15 in the body part 13 at intervals in the bottle axis O direction. Is formed. Each annular groove 17 is smaller in size in the bottle axis O direction than the waist portion 15 and has a smaller amount of depression toward the inner side in the bottle radial direction.

In the trunk portion 13, the upper continuous portion 18 that continues from the upper side to the waist portion 15 is formed in a convex curved shape that bulges toward the outside in the bottle radial direction. In the illustrated example, the curvature radius of the upper continuous portion 18 is smaller than the curvature radius of the waist portion 15.
And in this embodiment, the straight part 21 extended along the bottle axis | shaft O direction is provided in the lower side connection part 20 which continues in a waist part 15 in the trunk | drum 13 from the lower side. In the illustrated example, in the lower connecting portion 20, the upper connecting portion 22 connected to the waist portion 15 is formed in a convex curved surface shape whose diameter is gradually increased toward the lower side, and the straight portion 21 is connected to the upper connecting portion 20. It is connected to the lower end of the part 22. Moreover, the lower end of the straight part 21 is connected to the upper end of the annular groove 17 located in the uppermost position among the plurality of annular grooves 17 formed in the lower body part 13b. As a result, the lower connecting portion 20 has an annular rib shape that is sandwiched between two concave grooves (waist portion 15 and annular groove 17) in the container axis O direction and bulges outward in the bottle radial direction. .

The curvature radius of the upper connection portion 22 is larger than the curvature radius of the waist portion 15. Further, the size of the upper connecting portion 22 in the bottle axis O direction is larger than the sizes of the straight portion 21 and the upper connecting portion 18 in the bottle axis O direction. The outer diameters of the lower portion of the upper connecting portion 22 and the straight portion 21 are equal to or larger than the outer diameter of the upper connecting portion 18.
However, in order to suppress the appearance defect of the bottle 1, it is preferable that the outer diameter of the lower continuous portion 20 (straight portion 21) is larger than the outer diameter of the upper continuous portion 18.
Further, in the present embodiment, the outer diameter of the non-formed portion of the annular groove 17 and the straight portion 21 in the lower trunk portion 13b of the trunk portion 13 are equal to each other, and the non-formed portion and the straight portion 21 are The bottle 1 has the largest outer diameter portion having the largest outer diameter.

As described above, according to the bottle 1 according to the present embodiment, since the straight portion 21 is provided in the lower connecting portion 20 of the trunk portion 13, the diameter of the bottle added to the lower connecting portion 20. It becomes possible to easily disperse the compressive force in the direction in the bottle axis O direction. Accordingly, even if the lower continuous portion 20 is recessed in the bottle radial direction, it can be easily restored and deformed. Thereby, even if the bottle 1 is thin-walled, it is possible to suppress the appearance defect from being easily caused by the deformation of the lower continuous portion 20 of the body portion 13.
Further, since the straight portion 21 is provided in the lower side connecting portion 20, the straight portion 21 receives the compressive force applied to the bottle 1 in the direction of the bottle axis O so that the straight portion 21 is evenly distributed over the entire circumference. Therefore, the buckling strength of the bottle 1 can be improved by suppressing the lower connecting portion 20 from being crushed in the bottle axis O direction.

Moreover, in this embodiment, since the straight part 21 of the lower continuous connection part 20 and the waist part 15 are connected via the upper connection part 22 of the lower continuous connection part 20 formed in the convex curve shape. Further, by smoothly connecting the straight portion 21 and the waist portion 15, it is possible to prevent a portion where a large load is locally concentrated between the two, and the bottle diameter applied to the lower continuous portion 20. It becomes possible to easily transmit the compressive force in the direction to the upper connecting portion 22 via the straight portion 21, and the above-described operation and effect are more reliably achieved.
Furthermore, in this embodiment, since the straight part 21 is a maximum outer diameter part of the bottle 1 and is a part that is easily subjected to a compressive force in the bottle radial direction, the above-described effects are effectively achieved.

  Next, a description will be given of the above-described verification test of the operational effect (based on JIS Z 0205).

The bottle 1 shown in FIG. 1 is adopted as an example, and the lower connecting portion 20 in the bottle 1 shown in FIG. 1 as a comparative example is a convex curved surface portion similar to the upper connecting portion 18 having no straight portion 21. A bottle was adopted. Specifically, the bottle of the comparative example has a radius of curvature larger than that of the upper connecting portion 22 in the lower connecting portion 20 of the bottle 1 shown in FIG. A convex curved upper connection portion having a small size, a convex curved shape having a smaller radius of curvature than the upper connection portion 22 instead of the straight portion 21 and a larger size in the bottle axis O direction than the straight portion 21 It has a lower connection. The lower connection portion is the maximum outer shape portion having the largest outer diameter in the bottle of the comparative example.
In addition, the internal volume of the bottle of each Example and Comparative Example was 1 liter, and the weight of each bottle was made equal.

Then, a carton case containing 15 bottles 1 of the embodiment filled with contents and storing them, and a carton case containing 15 bottles of the comparative example filled with contents prepared and stored respectively, When the carton case is slid down on an inclined runway inclined 10 ° to the horizontal and collided with the collision wall, it is visually confirmed whether there is a crease or a crush in the lower continuous connection part of the bottle. For each carton case, the number of bottles with creases and the number of crushed bottles was counted.
This test was performed several times for each carton case with different run distances on the inclined runway until the car collides with the collision wall. In this test, each carton case was slid down on an inclined runway in such a direction that five bottles contained in the carton case were continuous along the run direction and three along the direction perpendicular to the run direction. .
The results are shown in Table 1.

  As a result, in the bottle 1 of the example, although a crease was confirmed, no smashing was confirmed. On the other hand, in the bottle of the comparative example, when the slidable distance was increased, not only the crease but also smashing was confirmed.

  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, in the above embodiment, the panel surface portion 16 and the annular groove 17 are formed in the body portion 13, but these may not be formed.
Moreover, the magnitude relationship of each dimension of the waist part 15, the upper side connection part 18, the upper connection part 22 of the lower side connection part 20, and the straight part 21 of the lower side connection part 20 is not restricted to the said embodiment, but changes suitably. May be.
Further, the straight portion 21 may not be the maximum outer diameter portion of the bottle 1.
Further, the lower end of the waist portion 15 and the upper end of the straight portion 21 may be connected without interposing the upper connecting portion 22 between the waist portion 15 and the straight portion 21.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

  Even if the bottle is thin, it is possible to prevent the appearance defect from easily occurring due to the deformation of the lower continuous portion of the body portion.

DESCRIPTION OF SYMBOLS 1 Bottle 13 Body part 15 Waist part 20 Lower side connection part 21 Straight part 22 Upper connection part O Bottle axis

Claims (3)

  1. A bottle formed of a synthetic resin material in a bottomed cylindrical shape,
    A waist portion that is recessed toward the inside in the bottle radial direction is formed over the entire circumference of the body portion,
    The bottle characterized in that a straight portion extending along the bottle axial direction is provided in a lower side continuous portion that extends from the lower side to the waist portion in the body portion.
  2. The bottle according to claim 1,
    In the lower connecting portion, the upper connecting portion connected to the waist portion is formed in a convex curved surface shape whose diameter is gradually increased toward the lower side, and the straight portion is connected to the lower end of the upper connecting portion. Bottle characterized by being.
  3. The bottle according to claim 1 or 2,
    The bottle, wherein the straight portion is a maximum outer diameter portion of the bottle.
JP2010018676A 2010-01-29 2010-01-29 Bottle Pending JP2011157086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010018676A JP2011157086A (en) 2010-01-29 2010-01-29 Bottle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010018676A JP2011157086A (en) 2010-01-29 2010-01-29 Bottle

Publications (1)

Publication Number Publication Date
JP2011157086A true JP2011157086A (en) 2011-08-18

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ID=44589416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010018676A Pending JP2011157086A (en) 2010-01-29 2010-01-29 Bottle

Country Status (1)

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JP (1) JP2011157086A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762221A (en) * 1996-07-23 1998-06-09 Graham Packaging Corporation Hot-fillable, blow-molded plastic container having a reinforced dome
US5971184A (en) * 1997-10-28 1999-10-26 Continental Pet Technologies, Inc. Hot-fillable plastic container with grippable body
JP2003030727A (en) * 2001-07-13 2003-01-31 Tokiwa Senden:Kk Container suitable for automatic vending machine
US20030168425A1 (en) * 2002-03-07 2003-09-11 Sheldon Yourist Plastic container having depressed grip sections
JP2004035110A (en) * 2002-07-03 2004-02-05 Ball Corp Plastic container
JP2008007132A (en) * 2006-06-27 2008-01-17 Mitsubishi Plastics Ind Ltd Plastic bottle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762221A (en) * 1996-07-23 1998-06-09 Graham Packaging Corporation Hot-fillable, blow-molded plastic container having a reinforced dome
US5971184A (en) * 1997-10-28 1999-10-26 Continental Pet Technologies, Inc. Hot-fillable plastic container with grippable body
JP2003030727A (en) * 2001-07-13 2003-01-31 Tokiwa Senden:Kk Container suitable for automatic vending machine
US20030168425A1 (en) * 2002-03-07 2003-09-11 Sheldon Yourist Plastic container having depressed grip sections
JP2004035110A (en) * 2002-07-03 2004-02-05 Ball Corp Plastic container
JP2008007132A (en) * 2006-06-27 2008-01-17 Mitsubishi Plastics Ind Ltd Plastic bottle

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