JP4990709B2 - Bottle - Google Patents

Description

 The present invention relates to a synthetic resin bottle.

As this type of bottle, a configuration in which a mouth portion, a shoulder portion, a trunk portion, and a bottom portion are integrally formed of a synthetic resin has been conventionally known, for example, as shown in Patent Document 1 below.
JP 2004-292039 A

 Incidentally, in recent years, there has been an increasing demand for bottles having excellent grip properties.

 The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a bottle excellent in grip performance.

In order to solve the above problems and achieve such an object, the bottle of the present invention is a bottle in which a mouth portion, a shoulder portion, a trunk portion and a bottom portion are integrally formed of synthetic resin, The waist portion is provided with a waist portion that gradually decreases in diameter toward the center portion in the central axis direction of the body portion from the mouth side and the bottom side, and the waist portion includes a radially inward portion of the bottle. is the panel portion is formed recessed toward, the panel section, in the waist portion, the Ri optimum from the lower portion of the bottom side to the upper via a central portion of the opening portion side of the body portion, said barrel Two circumferential grooves are formed at an interval in the direction of the central axis thereof, and the body portion is located on the mouth side of these circumferential grooves, and the bottom portion of both circumferential grooves. The lower body part located on the side and the waste cloth located between the circumferential grooves The panel portion is connected to one of the two circumferential grooves and is disposed away from the other circumferential groove, and the upper and lower body portions are arranged. Of these, the body portion connected to the one circumferential groove is formed with auxiliary concave grooves that connect portions corresponding to both ends of the panel portion in the circumferential direction of the panel portion in the one circumferential groove. And
According to this invention, since the waist portion is provided in the torso portion, even for a consumer with a small hand such as a child, by gripping the central portion where the outer diameter is the smallest in the torso portion, The bottle can be gripped strongly.
Furthermore, since the panel portion is formed in the waist portion, when the bottle is lifted while being gripped as described above, a finger can be hooked on a portion of the panel portion located above the waist portion. It becomes possible.
From the above, this bottle can be provided with a good grip.
Moreover, since the waist part is provided in the trunk | drum, this bottle can also be provided with favorable design property.
Furthermore, the panel portion can not only hook the finger as described above, but also can absorb fluctuations in the bottle internal pressure. In particular, the latter effect is achieved not only in the portion of the panel portion positioned at the upper portion of the waist portion, but also in its entirety, so that fluctuations in the bottle internal pressure can be reliably absorbed.

Here, a reinforcing groove that extends in the circumferential direction of the bottle may be formed in a non-formed portion of the panel portion at a central portion of the body portion.
In this case, since the reinforcing concave groove is formed in the trunk portion, it is possible to suppress a decrease in rigidity against torsional deformation around the central axis in the trunk portion due to the provision of the waist portion in the trunk portion. . In the former case, for example, when the cap and the bottle are relatively rotated around the central axis for opening the plug, it is possible to prevent the openability from being deteriorated by twisting the body portion.

Further , according to the present invention, since the panel portion is continuous with the one circumferential groove, it is possible to provide the bottle with a good releasability.
Further, an auxiliary recess for connecting portions corresponding to both circumferential ends of the panel portion of the panel portion in the one circumferential groove to the body portion that is continuous with the one circumferential groove among the upper body portion and the lower body portion. Since the groove is formed, when the panel portion is connected to one circumferential groove as described above, when the panel portion is strongly held, the circumferential end portion of the panel portion in the one circumferential groove It can be prevented that a broken line extending from the corresponding portion to the body portion that is continuous with the one circumferential groove among the upper body portion and the lower body portion is easily generated.

Further, in the panel portion, an inclination angle of a portion positioned above the waist portion with respect to the central axis may be larger than an inclination angle of a portion positioned below the waist portion with respect to the central axis.
In this case, in the panel portion, the inclination angle with respect to the central axis of the portion located above the waist portion is larger than the inclination angle with respect to the central axis of the portion located below the waist portion. Can be reliably hooked on a portion of the panel portion that is located above the waist portion when the finger is lifted in the state of being gripped as described above.

In addition, the body portion includes a first main wall portion and a second main wall portion having a shorter length in the circumferential direction of the bottle than the first main wall portion in the circumferential direction than the second main wall portion. The first main wall portion and the second main wall portion sandwich the central axis in the radial direction, respectively. A pair may be provided so as to face each other, and the panel portion may be separately formed in a portion of the waist portion positioned on the pair of first main wall portions.
In this case, the panel portion is formed on the first main wall portion having the longest length in the circumferential direction among the first main wall portion, the second main wall portion, and the corner wall portion constituting the trunk portion. Therefore, it becomes possible to ensure a large area occupied by the panel portion, and the above-described effects can be reliably achieved.

 According to the bottle of the present invention, excellent grip properties can be provided.

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the bottle 10 according to the present embodiment includes a mouth portion 11, a shoulder portion 12, a trunk portion 13, and a bottom portion 14, and these 11, 12, 13, and 14 are at the respective centers. In a state where the axis line is positioned on the common axis, the general configuration is such that the one is connected in this order from one side to the other side in the common axis direction.
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.

Here, in this embodiment, the trunk | drum 13 and the bottom part 14 are formed in polygonal cross-sectional shape, and the said common axis is a straight line which passes along the center part of the polygon which this cross-section makes. Hereinafter, this common axis is referred to as a central axis O. Further, in the direction of the central axis O, the mouth portion 11 side is referred to as an upper side, and the bottom portion 14 side is referred to as a lower side.
In the present embodiment, the body portion 13 includes a first main wall portion 15 and a second main wall portion 16 having a shorter length in the circumferential direction of the bottle 10 than the first main wall portion 15. The wall portions 16 are alternately connected in the circumferential direction via the corner wall portions 17 that are shorter in the circumferential direction than the wall portions 16. In the illustrated example, a pair of first main wall portions 15 are provided so as to face each other with the central axis O sandwiched in the radial direction of the bottle 10, and the second main wall portion 16 is crossed by the body portion 13. A pair of the first main wall portions 15 is disposed at a position shifted by 90 ° around the central axis O in a plan view so as to face each other with the central axis O sandwiched in the radial direction. .

And in this embodiment, the waist part 20 is provided in the trunk | drum 13 from the upper side and the lower side gradually diameter-reduced as it goes to the center part C in the said central axis O direction of the said trunk | drum 13 respectively.
Here, in the illustrated example, two circumferential grooves 18 and 19 are formed in the body portion 13 with an interval in the direction of the central axis O, and the body portion 13 is formed of both the circumferential grooves 18 and 19. The upper body 21 is located above the upper body 21 and the lower body 22 is located below the both circumferential grooves 18 and 19. The portion located between the two is the above-described waist portion 20.

 The waist portion 20 is longer than the lengths of the upper barrel portion 21 and the lower barrel portion 22 in the central axis O direction, and the central portion C of the entire barrel portion 13 in the central axis O direction is the center portion C. Located in the west part 20. Further, the central portion C of the body portion 13 is located above the central portion of the waist portion 20 in the central axis O direction. Furthermore, the upper waist portion 20 a located above the central portion C of the waist portion 20 in the waist portion 20 is formed in a concave curved shape that is recessed toward the radially inner side. The lower waist portion 20b located below the central portion C is formed in a convex curved shape that bulges outward in the radial direction. The upper waist portion 20a and the lower waist portion 20b However, the central portion C of the trunk portion 13 is smoothly connected. And the curvature radius of the concave curved surface which the upper waist part 20a makes is smaller than the curvature radius of the convex curved surface which the lower waist part 20b makes. Accordingly, the inclination angle of the upper waist portion 20a with respect to the central axis O is larger than the inclination angle of the lower waist portion 20b with respect to the central axis O.

 Furthermore, in this embodiment, the waist part 20 is formed with a panel part 23 that is recessed inward in the radial direction of the bottle 10, and the panel part 23 extends from the lower waist part 20 b to the central part C of the body part 13. It leads to the upper waist 20a. In the illustrated example, the panel portion 23 is formed separately in each of the portions of the waist portion 20 located on the pair of first main wall portions 15 described above, and the side view shape of the panel portion 23 is the first main wall. The portion 15 has a long rectangular shape in the direction of the central axis O along the outer edge shape of the portion located in the waist portion 20.

 Further, the lower end of the panel portion 23 is connected to the lower peripheral groove 18 positioned on the lower side of the two peripheral grooves 18 and 19 described above, and the upper end is separated downward from the upper peripheral groove 19 positioned on the upper side. Are arranged. Furthermore, the vertical sectional view shape of the panel portion 23 is a shape along the waist portion 20. That is, the upper panel portion 23a located at the upper waist portion 20a in the panel portion 23 is formed in a concave curved shape that is recessed toward the radially inner side, and the lower panel portion 23b located at the lower waist portion 20b in the panel portion 23. Is formed in a convex curved shape that bulges outward in the radial direction, and the upper panel portion 23a and the lower panel portion 23b are smoothly connected at the central portion C of the body portion 13. . The radius of curvature of the concave curved surface formed by the upper panel portion 23a is smaller than the radius of curvature of the convex curved surface formed by the lower panel portion 23b. Thereby, the inclination angle of the upper panel part 23a with respect to the central axis O is larger than the inclination angle of the lower panel part 23b with respect to the central axis O.

 Furthermore, in this embodiment, a reinforcing groove 24 extending in the circumferential direction of the bottle 10 is formed in a non-formed portion of the panel portion 23 in the central portion C of the body portion 13. The reinforcing concave groove 24 is provided on the other first main wall portion 15 via the second main wall portion 16 and the two corner wall portions 17 from both ends of the first main wall portion 15 in the circumferential direction. Are respectively reached at both ends in the circumferential direction. The circumferential end 24 a of the reinforcing groove 24 is disposed at a position away from the outer peripheral edge of the panel portion 23 in the circumferential direction at the circumferential end of the first main wall portion 15. Furthermore, the upper end of the reinforcing recess 24 is located below the upper end of the panel portion 23.

 Further, in the present embodiment, the lower body portion 22 is connected to the lower peripheral groove 18 so that the portions 18a, 18a corresponding to the both ends in the circumferential direction of the bottle 10 in the panel portion 23 are connected from the lower side. A concave groove 25 is formed. In the example shown in the drawing, the auxiliary concave grooves 25 are separately formed in the portions located on the pair of first main wall portions 15 in the lower body portion 22. The auxiliary convex groove 25 and the lower circumferential groove 18 define a reinforcing convex portion 26 at the upper end portion of the lower trunk portion 22 located on the first main wall portion 15. In the illustrated example, the side-view shape of the reinforcing convex portion 26 is a rectangular shape that is long in the circumferential direction.

As described above, according to the bottle 10 according to the present embodiment, since the waist portion 20 is provided in the body portion 13, the outer diameter of the body portion 13 is the smallest even for consumers with small hands such as children. By gripping the central part C, the bottle 10 can be gripped strongly.
Further, since the panel portion 23 is formed on the waist portion 20, when the bottle 10 is lifted while being gripped as described above, it is possible to hook the finger on the upper panel portion 23a.
As described above, the bottle 10 can be provided with a good grip.

Moreover, since the waist part 20 is provided in the trunk | drum 13, this bottle 10 can also be made to have favorable design property.
Furthermore, the panel part 23 can absorb not only the finger hooking as described above but also the fluctuation of the bottle internal pressure. In particular, the latter action is achieved in the entire panel portion 23 including not only the upper panel portion 23a but also the lower panel portion 23b, and can reliably absorb fluctuations in the bottle internal pressure.

 Further, in the present embodiment, since the reinforcing groove 24 is formed in the body portion 13, the body portion 13 is provided with the waist portion 20, and the rigidity against torsional deformation around the central axis O in the body portion 13 is thus achieved. Can be suppressed. In the former case, for example, when the cap and the bottle 10 are relatively rotated around the central axis O in order to open the cap, it is possible to prevent the barrel portion 13 from being twisted and the like to prevent the openability from being lowered. it can.

Furthermore, in this embodiment, since the panel part 23 is arrange | positioned away from the upper side surrounding groove 19, when a bottle 10 is lifted in the state hold | gripped as mentioned above, a finger | toe is made to the upper panel part 23a. The panel portion 23 is connected to the lower peripheral groove 18, so that the bottle 10 can be provided with good releasability.
Further, since the lower body portion 22 is formed with auxiliary concave grooves 25 that connect the portions 18a, 18a corresponding to the both ends in the circumferential direction of the panel portion 23 in the lower circumferential groove 18, from the lower side. As described above, when the panel portion 23 is connected to the lower circumferential groove 18, when the panel portion 23 is strongly gripped, a portion of the lower circumferential groove 18 corresponding to the circumferential end of the panel portion 23. It is possible to prevent a broken line extending from 18a toward the lower body portion 22 from being easily generated.

In the present embodiment, since the inclination angle of the upper panel portion 23a with respect to the central axis O is larger than the inclination angle of the lower panel portion 23b with respect to the central axis O, the bottle 10 is gripped as described above. When lifted in a state, it is possible to reliably hook the finger on the upper panel portion 23a.
Further, in the present embodiment, the first main wall 15 having the longest length in the circumferential direction among the first main wall 15, the second main wall 16, and the corner wall 17 constituting the body portion 13 is used. Since the panel portion 23 is formed, it is possible to secure a large occupied area of the panel portion 23, and the above-described effects can be reliably achieved.

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-described embodiment, the body portion 13 has a polygonal shape in a cross-sectional view in which the first main wall portion 15 and the second main wall portion 16 are alternately connected in the circumferential direction via the corner wall portion 17. Although a configuration exhibiting a shape has been shown, a configuration that exhibits a circular shape or an elliptical shape in a cross-sectional view may be employed instead.
Further, although the reinforcing concave groove 24 and the auxiliary concave groove 25 are formed, these may not be formed, and the side concave shape of the auxiliary concave groove 25 and the reinforcing convex portion 26 and the side sectional shape and longitudinal section of the panel portion 23 are formed. The visual shape is not limited to the above embodiment and may be changed as appropriate.
Furthermore, in the said embodiment, although the waist part 20 and the panel part 23 were each formed in the curved surface shape as mentioned above, it may replace with this, for example, may form in an inclined plane shape etc.
Moreover, in the said embodiment, as the panel part 23, while the lower end was connected to the lower side circumferential groove 18, the upper end showed the structure arrange | positioned downward from the upper side circumferential groove 19, but it replaced with this and the panel part was shown. 23 may be separated from the lower circumferential groove 18 and the upper end of the panel portion 23 may be connected to the upper circumferential groove 19. Further, the upper end and the lower end of the panel portion 23 may be respectively connected to the upper circumferential groove 19. The lower circumferential groove 18 may be connected to each other.

 An excellent grip can be provided.

It is the side view which looked at the 1st main wall part in the front in the bottle shown as one embodiment concerning the present invention. It is the side view which looked at the 2nd main wall part in the front in the bottle shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bottle 11 Mouth part 12 Shoulder part 13 Trunk part 14 Bottom part 15 1st main wall part 16 2nd main wall part 17 Corner | angular wall part 18 Lower peripheral groove 19 Upper peripheral groove 20 Waist part 20a Upper waist part (west part of a waist part) Top)
20b Lower waist (bottom of waist)
21 Upper body part 22 Lower body part 23 Panel part 23a Upper panel part 23b Lower panel part 24 Reinforcement ditch 25 Auxiliary ditch C Center part O Center axis

Claims (4)

A mouth, a shoulder, a trunk, and a bottom are integrally formed of synthetic resin,
The waist part is provided with a waist part gradually reduced in diameter from the mouth part side and the bottom part side toward the center part in the central axis direction of the trunk part,
The waist portion is formed with a panel portion that is recessed toward the inside in the radial direction of the bottle, and the panel portion is formed in the waist portion from the bottom portion on the bottom side through the center portion of the body portion. Itaru Ri at the top of the part side,
The body portion is formed with two circumferential grooves spaced apart in the direction of the central axis thereof. The body portion includes an upper body portion positioned on the mouth side with respect to the both circumferential grooves, The lower body portion located on the bottom side of the groove, and the waist portion located between the two circumferential grooves, are partitioned,
The panel portion is connected to one of the two circumferential grooves, and is disposed away from the other circumferential groove,
Among the upper body part and the lower body part, the body part that is continuous with the one circumferential groove is an auxiliary part that connects the parts corresponding to both circumferential ends of the panel portion of the panel part in the one circumferential groove. A bottle characterized in that a concave groove is formed . The bottle according to claim 1,
A bottle having a reinforcing groove extending in a circumferential direction of the bottle is formed in a non-formed portion of the panel portion at a central portion of the body portion. The bottle according to claim 1 or 2 ,
In the panel portion, an inclination angle with respect to the central axis of a portion located in the upper portion of the waist portion is larger than an inclination angle with respect to the central axis of a portion located in the lower portion of the waist portion. Bottle. A bottle according to any one of claims 1 to 3 ,
The body portion includes a first main wall portion and a second main wall portion whose length in the circumferential direction of the bottle is shorter than that of the first main wall portion, and is longer in the circumferential direction than the second main wall portion. The first main wall portion and the second main wall portion are opposed to each other with the central axis line in the radial direction, and are alternately connected in the circumferential direction via short corner wall portions. A pair is provided,
The said panel part is separately formed in the part located in a pair of said 1st main wall part in the said waist part, The bottle characterized by the above-mentioned.

Images