JP5085171B2 - Plastic bottle - Google Patents

Description

  The present invention relates to a plastic bottle for storing a liquid such as a soft drink.

  As containers for filling beverages, plastic bottles represented by plastic bottles are widely known. The bottles are commercially available from a small size of 500 ml or less to a medium size of around 1000 ml, and a large size such as 1500 to 2000 ml.

  In general, in a store such as a supermarket, large bottles are placed on display shelves that are kept horizontal. On the other hand, the display shelf for small bottles is inclined or inclined with a roller. Therefore, when the bottle (product) displayed on the display shelf is taken out by the consumer, the bottle in the rear row is slid out to the front row by its own weight. Usually, a stopper is installed on the front surface of the display shelf, and the bottle that has slid down stops on the front surface of the display shelf when the lower portion of the bottle main body abuts against the stopper (see, for example, Patent Document 1).

Bottles are designed in various ways with respect to height and shape. The height of the small bottle is designed to be, for example, 218 mm in accordance with the height of the multistage display shelf. In general, a bottle body portion for a soft drink is formed with a rib for enhancing aesthetics and mechanical strength, and a vacuum absorbing panel for suppressing deformation due to decompression of the contents is formed in a concave shape (for example, , See Patent Documents 2 and 3.) In addition, bottles having a complicated shape in the bottle body are being developed due to consumer aesthetics and the like.
JP-A-8-299121 JP 2005-81641 A JP 2001-48147 A

  As described above, there are conventional bottles that take aesthetics and bottle strength into consideration. However, no consideration is given to the shape of the bottle that prevents the bottle from being overturned during store display. For this reason, depending on the shape of the bottle, there is a possibility that the bottle may be tilted forward and fall down in the display shelf due to an impact that slides down from the rear row to the front row and hits the stopper in the display shelf. Moreover, such a fall may occur not only when the bottle is taken out by the consumer but also when the bottle is inserted from the rear of the display shelf.

  In particular, in a bottle having a concave decompression absorption panel at a position corresponding to the upper end portion of the stopper, the lower portion of the bottle may come into contact with the middle portion or the lower portion of the stopper before contacting the upper end portion of the stopper. When such contact occurs, a relatively large moment acts on the bottle, so that the bottle is likely to fall over.

  An object of the present invention is to provide a plastic bottle capable of preventing a fall during display even in an unstable bottle having a small fall angle.

In order to achieve the above object, the plastic bottle of the present invention is formed on the front surface of the main body portion and the main body portion configured to store the liquid therein, and the upper portion of the plastic bottle is inclined forward when displayed. And a reduced pressure absorption panel formed in a concave shape on the main body . And the fall suppression surface exists in the predetermined position in the range of 20 mm or more and 70 mm or less from the lower end of a plastic bottle. Also, tipping suppression surface is formed as longitudinal position is Ri same position or forward der than the surface on which is located below the tipping suppression face, traverses the vacuum panels.

The height of the stopper of the display shelf on which the bottles are displayed is often set to 20 mm or more and 70 mm or less. According to the configuration of the present invention, the overturning suppression surface is formed at a predetermined position within this range, and the position in the front-rear direction is not protruded from the lower surface. Thereby, since at least the fall suppressing surface is included in the portion where the bottle contacts the stopper, it is possible to prevent the bottle from falling during display. In addition, since a “surface” is secured as a contact portion with the stopper, not a “point”, the impact load at the time of collision with the stopper can be dispersed.
Furthermore, from the viewpoint of the shape of the main body, there is a case where the concave decompression absorption panel has to be formed at a position corresponding to the stopper. However, according to the above configuration of the present invention, even in such a case, it is possible to effectively prevent the bottle from overturning while ensuring the reduced pressure absorption effect that the reduced pressure absorption panel originally performs.

Preferably, it may rolling倒抑system surface is formed in a band shape so as to divide the vacuum panels vertically.

  More preferably, the toppling suppression surface is flush with the other surfaces of the main body excluding the reduced pressure absorption panel.

  According to this configuration, it is not necessary to project only the fall-suppressing surface from the main body.

  Preferably, the reinforcing concave ribs are formed on at least the upper side and the lower side of the overturning suppression surface over the circumferential direction of the main body portion.

  According to this configuration, the portion close to the point of application of the load at the time of collision with the stopper can be reinforced with the concave rib.

  Preferably, the toppling suppression surface has a height of 10 mm or more and 30 mm or less in the vertical direction.

  According to this configuration, even if there is variation in the height of the stopper due to the display shelf, the toppling suppression surface can come into contact with the stopper.

  Preferably, the overturn suppressing surface is curved outward from the bottle.

  According to this configuration, since the distance from the center of gravity of the bottle to the tipping suppression surface is longer than when the tipping suppression surface is not curved, it is possible to further prevent the bottle from tipping over.

  Preferably, the main body has a substantially square cross-sectional shape in which the length in the left-right direction is larger than the length in the front-rear direction.

  According to this structure, about the bottle with a flat main body part, the fall at the time of display can be prevented.

  More preferably, the overturn suppressing surface may be formed so as to extend in the left-right direction at the center of the front surface of the main body.

  According to this configuration, the impact suppression load can be dispersed because the toppling suppression surface can come into wide contact with the stopper at the time of collision with the stopper.

  Preferably, in the bottle, the position of the center of gravity in the liquid storage state is preferably higher than the fall prevention surface.

  Preferably, the bottle is displayed on a display shelf with a stopper, and when the bottle collides with the stopper, the fall-suppressing surface is the same as the surface of the main body part below the fall-preventing surface or this surface. It is better to contact the stopper first.

  Preferably, the bottle capacity is 300 to 800 ml, or the bottle height is 140 to 220 mm.

Another plastic bottle of the present invention for achieving the above object is a plastic bottle displayed on a display shelf with a stopper, and a main body part configured to store a liquid therein, and the plastic at the time of display. A fall-preventing surface for preventing the upper part of the bottle from tipping forward, which is formed at a position corresponding to the stopper in the main body portion and extending in the width direction of the plastic bottle, and the main body portion And a vacuum absorbing panel formed in a concave shape . The depth of the portion where there is a tipping suppression surface is much larger than the same or the depth of the portion is located below the tipping suppression surface, the tipping suppression surface is formed so as to divide the vacuum panels in the vertical Has been .

  Hereinafter, a plastic bottle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the plastic bottle 1 (hereinafter simply referred to as “bottle 1”) has a mouth portion 2 and a main body portion 3 and is formed flat as a whole. The bottle 1 is molded by a stretch molding method using, as a main material, a thermoplastic resin such as polyethylene, polypropylene, or polyethylene terephthalate. As the stretch molding method, for example, an injection blow molding method by a cold parison method is used. Since this molding method is known, a detailed description thereof will be omitted. Here, an example of a parison used in the cold parison method will be briefly described.

  As shown in FIG. 5, the parison 30 includes a mouth portion 31 and a main body preform portion 32 that continues to the lower end of the mouth portion 31. The mouth portion 31 has exactly the same shape as the mouth portion 2. The main body preform portion 32 is finally formed into the main body portion 3. The mouth portion 31 and the main body preform portion 32 are formed with a perfect circular cross section. By the cold parison method, the parison 30 is heated only at the main body preform portion 32 and its bottom is stretched. Moreover, the main body preform part 32 expand | swells by blowing in compressed air, closely_contact | adheres to the inner surface of a metal mold | die, and cools and solidifies after that. Thereby, the bottle 1 with a substantially uniform thickness is formed.

  The molded bottle 1 is filled with a beverage after being subjected to washing / sterilizing treatment with hot water sterilization, a chlorine-based sterilizing agent, or the like. Examples of the beverage include various non-carbonated beverages such as tea, oolong tea, black tea, coffee, and fruit juice. In general, in the case of non-carbonated beverages, the bottle internal pressure is negative (that is, smaller than the external pressure), so the strength of the bottle is weak, and a concave rib is formed in the bottle to ensure the strength. Since the bottle 1 of this embodiment has the concave rib for reinforcement (concave ribs 21-24 mentioned later), it is suitable for filling a non-carbonated beverage. However, in other embodiments, the liquid filled in the bottle 1 may be a carbonated beverage or a food such as a sauce or mirin.

Here, various terms used in this specification are defined as follows.
The central axis Y-Y direction means the vertical direction of the bottle 1. “Bottle inward” refers to the direction closer to the central axis YY than the bottle wall, and “Bottle outward” refers to the direction further away from the central axis YY than the bottle wall. The “width”, “depth”, and “height” of the bottle 1 refer to the length of the bottle 1 in the left-right direction, the front-rear direction, and the up-down direction in FIG. The “cross-sectional shape” means a cross-sectional shape of the bottle 1 in a plane orthogonal to the central axis YY. The “circumferential direction” means a direction that goes around the contour of the cross-sectional shape. “Flat” means that the length of one side of the cross-sectional shape is not equal to the length of the other side intersecting it. The “flattening ratio” refers to the ratio of the length in the width direction to the length in the depth direction in the cross-sectional shape.

  A preferred example of the size of the bottle 1 is as follows. First, the height of the bottle 1 is 140 mm or more and 220 mm or less. This is because the display shelves installed at sales floors such as supermarkets and convenience stores are often designed so that products with a size of 230 mm can be displayed if they are small in size. Next, the capacity of the bottle 1 is not less than 300 ml and not more than 800 ml, preferably not less than 300 ml and not more than 500 ml. This is because such a size can provide a relatively small flat bottle. The height, capacity, maximum width, maximum depth, and flatness ratio of the bottle 1 of this embodiment described below are about 207 mm, about 450 ml, 67 mm, 48 mm, and about 1.4, respectively.

  With reference to FIGS. 1 to 3 again, each part of the bottle 1 will be described.

  The mouth portion 2 is located at the upper end portion of the bottle 1 and constitutes the minimum diameter portion of the bottle 1. The mouth part 2 is open at the upper end and functions as a beverage supply port, a drinking port, a spout or an outlet. The opening of the mouth 2 is opened and closed by a cap (not shown).

  The main body 3 has a shoulder 11, a trunk 12, and a bottom 13 in order from above the central axis YY. The shoulder part 11, the trunk | drum 12, and the bottom part 13 comprise the bottle wall which can store a drink inside. In a state where the beverage is fully stored in the main body 3, the center of gravity G of the bottle 1 is at a position of about 87 mm from the lower end of the bottle 1.

  The main body 3 has four concave ribs 21, 22, 23, and 24 that are parallel to each other. The concave ribs 21, 22, 23, 24 are formed so as to be recessed inward of the bottle over the circumferential direction of the main body 3. In the present embodiment, concave ribs are formed in the main body 12 in a well-balanced manner, the concave ribs 21 provide lateral rigidity at the upper end of the trunk 12, the concave ribs 22 provide lateral rigidity in the middle of the trunk 12, and concave ribs. The lateral rigidity at the lower part of the body part 12 is increased by 23 and 24. Thereby, the lateral rigidity of the bottle 1 can be increased without reducing the reduced pressure absorption effect by the reduced pressure absorption panels 65 and 66 described later. In addition, the cross-sectional shape of each concave rib can be designed appropriately, such as a semicircular arc or a trapezoidal shape in the vertical cross section.

  The shoulder portion 11 continues to the lower portion of the mouth portion 2. The shoulder 11 is formed in a shoulder shape when viewed from the front in FIG. 1, and the flatness ratio changes in the vertical direction. The shoulder 11 has a side wall extending in the depth direction having a radius of curvature R of about 41 mm and a side wall extending in the width direction having a radius of curvature R of about 65 mm. The shoulder portion 11 is bounded by the concave rib 21 between the body portion 12 and the shoulder portion 11.

  The bottom portion 13 constitutes a bottom surface 71 that is recessed upward to give the bottle 1 strength. As shown in FIG. 3, the bottom surface 71 has an elliptical surface 71 a as the bottom surface 71 where the bottle 1 is actually landed. The length from the lower end of the bottle 1 is based on this surface 71a. As shown in FIG. 1, the bottom portion 13 is formed by rounding both end portions 72 and 72 in the width direction and rounding both end portions 73 and 73 in the depth direction as shown in FIG. Note that round chamfering is synonymous with arcuate rounding, rounded cornering, or rounding.

  The trunk 12 is between the shoulder 11 and the bottom 13. The trunk portion 12 is formed symmetrically with respect to the center axis YY and symmetrical with respect to the front and rear. As shown in FIG. 4, the basic cross-sectional shape 60 of the trunk | drum 12 is a substantially rectangular shape whose length in the left-right direction is larger than the length in the front-rear direction. That is, the cross-sectional shape 60 is flat, and the flatness ratio is 1.4 (≈67 mm / 48 mm) as described above. In addition, the flatness ratio which can be said to be the flat trunk | drum 12 is about 1.2 or more and 1.8 or less, Preferably it is 1.3 or more and 1.6 or less.

  The cross-sectional shape 60 is composed of four side walls 61a, 61b, 62a, 62b. Each corner 63 of the cross-sectional shape is rounded with a radius of R8, for example. The two front and rear side walls 61 a and 61 b extend in the width direction of the bottle 1. The two left and right side walls 62a and 62b extend in the depth direction of the bottle 1 so as to be located between the two side walls 61a and 61b and to connect them. The side walls 61a, 61b, 62a, 62b are curved so as to bulge outward from the bottle, and the respective central portions are most bulged outward from the bottle.

  The decompression absorption panels 65 and 66 are formed in concave shapes on the side walls 61a and 61b, respectively. The reduced pressure absorption panels 65 and 66 absorb the decrease in the bottle internal pressure after filling the beverage, and function to suppress the deformation of the bottle 1. In particular, since the side walls 61a and 61b that are relatively long in the width direction are more easily deformed by decompression than the side walls 62a and 62b that are relatively short in the depth direction, the deformation can be suppressed by the decompression absorbing panels 65 and 66. The reduced pressure absorption panel 65 is formed in a circular shape, and is formed in the central region of the upper half of the side walls 61a and 61b so that the central portion of the circular shape falls most into the bottle.

  The reduced pressure absorption panel 66 includes two substantially arcuate portions 66c and 66d that are spaced apart from each other in the vertical direction, and is formed in the central region of the lower half of the side walls 61a and 61b. Each of the arcuate portion 66c and the arcuate portion 66d is formed in a concave shape so that the tipping suppression surface 67 side falls most into the bottle. The arcuate portions 66c and 66d are a part of the panel having the same shape as the reduced pressure absorption panel 65, and the outer surface of the remaining portion of the panel is a toppling suppression surface 67 extending in a band shape in the width direction. In other words, the center part of the reduced pressure absorption panel crosses the center of the reduced pressure absorption panel in the width direction so that the fall suppression surface 67 divides the same vacuum reduced pressure absorption panel as the reduced pressure absorption panel 65 into upper and lower parts to define arcuate portions 66c and 66d. To do.

  The overturning suppression surface 67 is a part that collides with the stopper 102 (see FIG. 6) of the display shelf 100, and functions to suppress the overturning of the bottle 1 at the time of the collision. For this reason, it is preferable to design the position, size, and range of the overturning suppression surface 67 in consideration of the height of the stopper 102. The height of the stopper 102 is often set in a range of 20 mm or more and 70 mm or less, and most of them are set to 20 mm or 50 mm. Therefore, the center position of the toppling suppression surface 67 may be a predetermined position in the range of 20 mm to 70 mm from the lower end of the bottle 1. Hereinafter, a case where the height of the stopper 102 is 50 mm will be described as an example.

  As shown in FIG. 2, the toppling suppression surface 67 preferably has a height of 10 mm or more and 30 mm or less in the central axis YY direction, and has a height of about 20 mm here. Moreover, the length from the lower end of the bottle 1 to the center position of the height of the toppling suppression surface 67 only needs to be equal to or higher than the height of the stopper 102, and is about 57 mm here. With such a dimension setting, the overturn suppressing surface 67 exists over a range of a distance of about 47 mm to about 67 mm from the lower end of the bottle 1.

  As shown in FIG. 1, the overturning suppression surface 67 extends in the left-right direction in the center region of the lower half of the side walls 61 a, 61 b, and the both ends in the left-right direction have no step with the other surface of the body portion 12. linked. In other words, the toppling suppression surface 67 is flush with the other surfaces of the body portion 12 excluding the reduced pressure absorption panel 66. Moreover, as shown in FIG. 2, the depth of the trunk | drum 12 of the part in which the fall suppression surface 67 exists is equal to the maximum depth of 48 mm. In other words, the fall-preventing surface 67 is in the same position as the surface 68 that is positioned below the fall-preventing surface 67 in the front-rear direction. Furthermore, as shown in FIG. 4, the overturn suppressing surface 67 is the same surface as a part of the outer surface of the basic cross-sectional shape 60.

  Since the fall prevention surface 67 only needs to be at a position corresponding to the stopper 102, it does not have to be formed on both the front and back sides of the bottle 1. Therefore, in another embodiment, the overturning suppression surface 67 may be provided only on the outer surface of the side wall 61a that is the front side of the bottle 1. In that case, the reduced pressure absorption panel 66 on the side wall 61 b may have the same shape as the reduced pressure absorption panel 65. In other embodiments, the vacuum absorbing panels 65 and 66 may have other shapes such as an ellipse or a rectangle.

  Next, the relationship between the bottle 1 and the display shelf 100 will be described with reference to FIGS.

  As shown in FIG. 6, the display shelf 100 includes a plurality of rollers 101 and stoppers 102. The plurality of rollers 101 are disposed obliquely downward from the rear to the front, and are rotatably supported by a shelf body (frame) (not shown). The inclination angle θ of the roller 101 is set in a range of 3 to 5 degrees, for example.

  The stopper 102 is disposed at the front end of the display shelf 100. As an example, the height of the stopper 102 is set to 50 mm as described above. The stopper 102 is composed of, for example, a plate extending in the vertical direction. The stopper 102 generally extends in the left-right direction, and its length exceeds the width of the bottle 1. The stopper 102 contacts the frontmost bottle 1a and prevents the bottle 1a from dropping downward.

  In the display shelf 100 in which a plurality of bottles 1 are displayed on the roller 101, the leading bottle 1a stops on the roller 101 without being inclined. At this time, in the bottle 1a, a part of the fall-inhibiting surface 67 and the lower surface (68) are in contact with the stopper 102. More specifically, the outer surface of the side wall 61a below the toppling suppression surface 67 and the outer surface excluding the concave ribs 23 and 24 and the arcuate portion 66d are in contact with the stopper 102. On the other hand, the bottles 1b, 1c,... Behind the bottle 1a are inclined in accordance with the inclination angle θ of the roller 101 and stopped on the roller 101. The adjacent bottles 1b and 1c in the display state come into contact with each other on the outer surface in the vicinity of the concave ribs 21 to 24 and the overturn suppressing surface 67.

  When the first bottle 1a is taken out by a consumer or the like, the rear bottles 1b, 1c,... Slide forward (in the direction of the arrow in FIG. 6) due to their own weight. As a result, the lower portion of the bottle 1b collides with the stopper 102 and stops and waits for the next removal. Thus, the display shelf 100 has a function of automatically feeding a plurality of displayed bottles 1 forward. Although not described in detail, the bottle 1 can be replenished (loaded) to the display shelf 100 by feeding the bottle 1 onto the roller 101 from the rear side of the display shelf 1.

  With reference to FIG.7 and FIG.8, the effect of the fall suppression surface 67 at the time of taking out or loading the bottle 1 is explained in full detail. FIG. 7 shows the bottle 1 of the present embodiment, and FIG. 8 shows a bottle 200 according to a comparative example. The difference between the bottle 1 and the bottle 200 is that the portion of the overturning suppression surface 67 in the bottle 1 is composed of the decompression absorption panel 660 having the same concave shape as the decompression absorption panel 65 in the bottle 200. Note that the center of gravity G of the bottle 1 and the bottle 200 is substantially the same position, and both are higher than the height of the stopper 102.

  As shown in FIG. 7, when the bottle 1 of the present embodiment slides down and collides with the stopper 102, first, the overturn suppressing surface 67 comes into contact with the upper end portion 104 of the stopper 102. That is, the tipping suppression surface 67 comes into contact with the upper end portion 104 before the surface (68) below the tipping suppression surface 67. Therefore, the action point of the bottle 1 at the time of the collision is the toppling suppression surface 67 with which the upper end 104 contacts.

  On the other hand, as shown in FIG. 8, when the bottle 200 according to the comparative example slides down and collides with the stopper 102, the lower outer surface 661 of the reduced pressure absorption panel 660 first comes into contact with the stopper 102. This is because the upper end 104 is located in the recess of the reduced pressure absorption panel 660 at the time of collision. As a result, the action point of the bottle 1 at the time of the collision is the outer surface 661 that is in contact with a portion below the upper end portion 104.

  Therefore, in the bottle 200, the distance between the center of gravity G and the action point becomes long, so that a relatively large moment is applied at the time of collision, and the upper part of the bottle 200 is easily inclined forward. If it becomes so, the lower part of the bottle 200 will slide up back by the effect | action of the roller 101, and the bottle 200 will fall in the display shelf 100. FIG. On the other hand, according to the bottle 1, since the distance between the center of gravity G and the action point can be shortened as compared with the bottle 200, a relatively large moment does not have to be applied at the time of collision. Therefore, the bottle 1 is prevented from falling within the display shelf 100.

  Next, with reference to FIG. 9 and FIG. 10, the effect of the fall-inhibiting surface 67 is similarly examined in the case of the display shelf 300 of another aspect. About the structure in which the display shelf 300 is common with the display shelf 100, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  In the display shelf 300, the front portion 310 on the bottle take-out side is set horizontally by a length corresponding to the depth of one bottle 1. That is, the roller 101 disposed in the front portion 310 does not tilt from the front to the rear. On the other hand, the rollers 101 arranged in the other areas 320 are inclined at an angle θ as described above. Therefore, the bottle 1 that slides down to the front portion 310 when taken out or loaded contacts the stopper 102 in an upright state.

  As shown in FIG. 9, when the bottle 1 collides with the stopper 102, the overturning suppression surface 67 contacts the stopper 102 at the same time as the surface (68) below it. The vertical length of the contact area is L1. On the other hand, as shown in FIG. 10, when the bottle 200 collides with the stopper 102, the portion (upper end portion 104) corresponding to the reduced pressure absorption panel 660 does not contact the stopper 102. For this reason, the length L2 of the contact area in the case of FIG. 10 is shorter than the length L1. Therefore, as in the case of the display shelf 100, the bottle 200 is likely to fall within the display shelf 300 at the time of a collision with the stopper 102, but the bottle 1 is less likely to fall within the display shelf 300 as compared with it.

  Although not described in detail, in the display shelf 300 of another aspect, the roller 101 of the front portion 310 may be omitted, and the bottle may be directly placed on the bottom surface of the shelf body. In another display shelf, the rollers 101 may be omitted in all areas. That is, the bottom of the display shelf on which the bottles 1 are displayed may be inclined from the rear to the front.

  As described above, according to the bottle 1 of the present embodiment, since the overturn suppressing surface 67 is formed at a position corresponding to the stopper 102, the overturn during display can be suitably prevented. Such an effect of preventing the fall is particularly useful for an unstable bottle having a small fall angle and having a relatively high center of gravity G. In addition, a fall angle means the inclination angle of a bottle when a bottle begins to fall, for example, the fall angle of said bottle 1 is about 11 degree | times.

  Moreover, since the concave ribs 22 and 23 are formed above and below the toppling suppression surface 67, a portion close to the load application point at the time of collision with the stopper 102 can be reinforced. Further, since the overturning suppression surface 67 is formed in relation to the reduced pressure absorption panel 66, the bottle 1 can be effectively prevented from falling over while ensuring the reduced pressure absorption effect originally achieved by the reduced pressure absorption panel 66. Moreover, since the fall suppression surface 67 is curved outward from the bottle, the bottle 1 can be further prevented from falling than when the fall suppression surface 67 is not curved. Further, since the overturn suppressing surface 67 extends in the left-right direction, the contact area with the stopper 102 can be increased, and the impact load can be dispersed.

  Next, a bottle 400 according to another embodiment will be described with reference to FIG. The difference between the bottle 400 and the bottle 1 is the position in the front-rear direction of the toppling suppression surface 67. In the bottle 400, the overturn suppressing surfaces 67 and 67 on the side walls 61 a and 61 b both protrude outward from the other outer surface of the main body 3. That is, the overturning suppression surface 67 on the side wall 61a is positioned in front of the surface below it, and the overturning suppression surface 67 in the side wall 61b is positioned behind the surface below it. Even with such a bottle 400, the same effects as the bottle 1 can be achieved. In addition, since the other structure of the bottle 400 is the same as that of the bottle 1, detailed description is abbreviate | omitted.

  The bottle according to another aspect of the present invention may not be flat. For example, the cross-sectional shape 60 may be a circle, oval, square, or other polygon. Further, when the height of the stopper 102 is different from the above, the position of the overturning suppressing surface 67 can be changed correspondingly. In this case, the non-concave tipping suppression surface 67 may be formed at a height position corresponding to the stopper 102.

It is a front view of the plastic bottle which concerns on embodiment. It is a side view of the plastic bottle which concerns on embodiment. It is a bottom view of the plastic bottle which concerns on embodiment. It is sectional drawing cut | disconnected by the IV-IV line | wire of FIG. It is a figure which shows the parison of the plastic bottle which concerns on embodiment, (A) Top view, (B) It is sectional drawing. It is a side view which shows typically the display shelf with a stopper. It is a side view which shows typically the display shelf when the plastic bottle which concerns on embodiment collides with a stopper. It is a side view which shows typically the display shelf when the plastic bottle which concerns on a comparative example collides with a stopper. It is a side view which shows a mode when the plastic bottle which concerns on embodiment collides with the stopper of the display shelf different from FIG. It is a side view which shows a mode when the plastic bottle which concerns on a comparative example collides with the stopper of the display shelf different from FIG. It is a side view of the plastic bottle which concerns on another embodiment.

Explanation of symbols

  1: Bottle, 2: Mouth, 3: Body, 11: Shoulder, 12: Body, 13: Bottom, 21-24: Rib, 61a, 61b, 62a, 62b: Side wall, 65, 66: Absorption under reduced pressure Panel, 66c, 66d: bow-shaped portion, 67: fall-preventing surface, 100: display shelf, 102: stopper, YY: central axis

Claims (12)

In plastic bottles,
A main body configured to store liquid therein;
A fall-preventing surface formed on the front surface of the main body, and for preventing the upper part of the plastic bottle from tilting forward at the time of display ;
A vacuum absorbing panel formed in a concave shape in the main body , and
The fall-preventing surface is at a predetermined position within a range of 20 mm or more and 70 mm or less from the lower end of the plastic bottle, and the position in the front-rear direction is the same position as the surface below the fall-preventing surface or in front of it. der is,
The overturning suppression surface is a plastic bottle formed so as to cross the reduced pressure absorption panel . Before SL tipping suppression surface, so as to divide the vacuum panels vertically, it is formed in a strip shape, a plastic bottle according to claim 1. The tipping suppression surface, the is the other surface flush with the body portion except the vacuum panels, plastic bottle according to claim 1 or 2.   The plastic bottle according to any one of claims 1 to 3, further comprising a reinforcing concave rib formed on the main body portion in the circumferential direction on at least the upper side and the lower side of the toppling suppression surface.   The plastic bottle according to any one of claims 1 to 4, wherein the overturning suppression surface has a height of 10 mm or more and 30 mm or less in the vertical direction.   The plastic bottle according to any one of claims 1 to 5, wherein the tipping suppression surface is curved outward from the bottle.   The said main-body part is a plastic bottle as described in any one of Claim 1 thru | or 6 which has the substantially square cross-sectional shape where the length of the left-right direction is larger than the length of the front-back direction.   The plastic bottle according to claim 7, wherein the tipping suppression surface is formed to extend in a left-right direction at a central portion of the front surface.   The plastic bottle according to any one of claims 1 to 8, wherein a center of gravity of the plastic bottle in the liquid storage state is located above the toppling suppression surface. The plastic bottle is displayed on a display shelf with a stopper,
2. When the plastic bottle collides with the stopper, the fall-preventing surface contacts the stopper simultaneously with or before the surface of the main body portion below the fall-preventing surface. The plastic bottle as described in any one of thru | or 9.   The plastic bottle according to any one of claims 1 to 10, wherein the bottle capacity is 300 to 800 ml, or the bottle height is 140 to 220 mm. A plastic bottle displayed on a display shelf with a stopper,
A main body configured to store liquid therein;
A toppling-suppressing surface for preventing the tipping of the plastic bottle from tipping forward at the time of display, the tip being formed at a position corresponding to the stopper in the main body and extending in the width direction of the plastic bottle A restraining surface;
A vacuum absorbing panel formed in a concave shape in the main body , and
The depth of the portion where there is a tipping suppression surface is much larger than the same or the depth of the portion is located below the the tipping suppression surface,
The overturn suppressing surface is a plastic bottle formed so as to divide the reduced pressure absorption panel up and down .

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