Bottle

Abstract

To provide a bottle which can be stably gripped.SOLUTION: A grip portion to be gripped by fingertips 35 is provided on an 4a of a sidewall surface of a rectangular bottle, the grip portion includes a longitudinal concave portion 13 formed long along a long side direction 12 of the 4a of the sidewall surface and a plurality of lateral convex ribs 16 crossing the inside of the longitudinal concave portion 13 in a short side direction of the 4a of the sidewall surface, the longitudinal concave portion 13 is divided into a plurality of finger rest concave portions 19 by the lateral convex ribs 16, and the lateral convex ribs 16 have a curved cross section bulging outward from an inner bottom portion 21 of the longitudinal concave portion 13. A guide surface 22 for guiding the fingertip 35 from the top side 17 of the outside end part of the lateral projection rib 16 to the finger rest recessed part 19 is formed on the lateral projection rib 16.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a rectangular bottle having multiple sidewalls. [Background technology]

[0002] Conventionally, as shown in FIG. 11, there is a bottle of this type in which, on a side wall surface 102 of a bottle 101, two protrusions 104 are arranged at a distance from each other along a longitudinal direction 103 of the bottle 101, and three recesses 105 are formed on both sides of each protrusion 104 in the longitudinal direction 103 and serve as gripping points for fingers when holding the bottle 101. The outer end of the protrusion 104 is formed with a flat surface 106 (hereinafter referred to as the flat surface 106).

[0003] According to this, when the bottle 101 is grasped by hand, the fingertips can be placed on the recesses 105, and at this time, the fingertips are caught on the protrusions 104, so that the bottle 101 can be grasped stably. The bottle 101 described above is described in, for example, Patent Document 1 below. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5053580 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional design described above, the outer end of the convex portion 104 is formed as a flat surface 106, and so when grasping the bottle 101 with one's hand, as shown by the imaginary line in Fig. 11, fingertips 108 may be mistakenly placed against the flat surface 106 of the convex portion 104 rather than against the recess 105. In this way, if bottle 101 is grasped with fingertips 108 placed against the flat surface 106 of the convex portion 104, fingertips 108 tend to slip, making it difficult to hold bottle 101 securely. An object of the present invention is to provide a bottle that can be gripped stably. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a rectangular bottle having a plurality of side wall surfaces, A grip portion to be held by fingertips is provided on the side wall surface, The grip portion has a longitudinal recess formed along the long side direction of the side wall surface, and a plurality of horizontal protruding ribs extending across the longitudinal recess in the short side direction of the side wall surface, The vertical recess is divided into multiple finger rest recesses by horizontal convex ribs, The horizontal convex rib has a curved cross section that bulges outward from the inner bottom of the vertical concave portion, The horizontally protruding rib is characterized by having a guide surface formed on it that guides the fingertip from the top edge of the outer end of the horizontally protruding rib into the finger rest recess.

[0007] With this, when grasping the bottle with one's hand, by placing the fingertips in the finger rest recesses, the fingertips are caught on the horizontally convex ribs, allowing the bottle to be gripped stably. Furthermore, when grasping the bottle, if the fingertips are placed on the horizontal convex ribs rather than the concave finger rests, the guide surfaces will guide the fingertips from the horizontal convex ribs to the concave finger rests, ensuring that the fingertips are securely placed in the concave finger rests, allowing the bottle to be gripped stably.

[0008] According to the bottle of the present invention, four or more horizontal convex ribs are formed in the vertical concave portion, It is preferable that the vertical recess is divided into five or more finger rest recesses by horizontal protruding ribs. This allows all of the fingertips to be placed in the finger rest recesses, allowing the bottle to be gripped stably.

[0009] According to the bottle of the present invention, it is preferable that the inner bottom of the vertical recess bulges toward the inside of the side wall surface, and that the central portion in the short side direction of the side wall surface has an arc-shaped cross section that curves more inwardly toward the side wall surface than both end portions.

[0010] With this, when the user places his / her fingertips on the finger rest recess and grasps the bottle with his / her hand, his / her fingertips are guided to the center of the vertical recess in the direction of the short side of the side wall, which allows the user to reliably place his / her fingertips on the finger rest recess.

[0011] According to the bottle of the present invention, it is preferable that the top edge of the horizontally protruding rib bends so that the central portion in the short side direction of the side wall surface is curved more inwardly than both end portions of the side wall surface.

[0012] According to the bottle of the present invention, the grip portions are preferably provided on a pair of side wall surfaces that face each other in the short side direction.

[0013] With this, when grasping the bottle with one's hand, the fingertips of the fingers other than the thumb are placed in the finger rest recess of the grip section provided on one of the pair of side wall surfaces, and the fingertip of the thumb is placed in the finger rest recess of the grip section provided on the other side wall surface, so that each fingertip catches on the horizontal convex rib, allowing the bottle to be held even more stably.

[0014] According to the bottle of the present invention, a reinforcing recess is formed on the side wall surface to suppress inward deformation of the side wall surface, The reinforcing recess preferably surrounds the periphery of the grip portion.

[0015] As a result, even if the temperature of the contents filled in the bottle drops and the pressure inside the bottle decreases, the grip portion is surrounded by the reinforcing recess, preventing the grip portion from deforming inward toward the side wall surface.

[0016] According to the bottle of the present invention, a vacuum absorption panel that can deform inwardly on the side wall surface when the pressure inside the bottle is reduced is preferably provided on the side wall surface where no grip portion is provided.

[0017] With this, when the temperature of the contents in the bottle drops and the pressure inside the bottle decreases, the vacuum absorption panel deforms inward on the side wall surface, preventing local deformation of the bottle in areas other than the vacuum absorption panel, thereby preventing the grip portion from deforming inward on the side wall surface. [Effects of the Invention]

[0018] As described above, according to the present invention, when grasping a bottle, if the fingertips are placed on the horizontal convex ribs rather than the finger rest recesses, the fingertips are guided from the horizontal convex ribs to the finger rest recesses by the guide surfaces, so the fingertips are reliably placed on the finger rest recesses, allowing the bottle to be gripped stably. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view of a bottle according to a first embodiment of the present invention. [Figure 2] FIG. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 3 is a cross-sectional view of FIG. 2 taken along line B-B. [Figure 5] 3 is a cross-sectional view taken along CC in FIG. 2. [Figure 6] FIG. 5 is an enlarged cross-sectional view of a part of FIG. [Figure 7] FIG. 4 is an enlarged cross-sectional view of a part of FIG. 3. [Figure 8] FIG. 2 is a cross-sectional view of the bottle, showing the bottle being held by hand. [Figure 9] FIG. 3 is a cross-sectional view of a bottle according to a second embodiment of the present invention. [Figure 10] FIG. 2 is a cross-sectional view of the bottle, showing the bottle being held by hand. [Figure 11] FIG. 1 is an enlarged view of a portion of the side surface of a conventional bottle. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. (First embodiment)

[0021] 1 to 5, reference numeral 1 denotes a rectangular bottle (e.g., a PET bottle) made of a synthetic resin such as polyethylene terephthalate. Bottle 1 is filled with a liquid content (not shown), such as drinking water or a seasoning.

[0022] The bottle 1 has four (plural) side wall surfaces 4a to 4d around its periphery, a mouth 6 at its upper end, and a bottom plate 7 at its lower end. Each of the side wall surfaces 4a to 4d is formed in a rectangular shape that is long in the axial direction of the bottle 1 (vertical direction). A pair of side wall surfaces 4a, 4c facing each other in the short side direction 15 are each provided with a grip portion 9 to be held by fingertips. The configuration of the grip portion 9 provided on one of the pair of side wall surfaces 4a, 4c will be described below.

[0023] The grip portion 9 has a vertical recess 13 formed long along the long side direction 12 of the side wall surface 4a, and four (multiple) horizontal protruding ribs 16 that cross the vertical recess 13 in the short side direction 15 of the side wall surface 4a. The long side direction 12 is the same direction as the axial direction of the bottle 1 , and the short side direction 15 is a direction perpendicular to the axial center 18 of the bottle 1 .

[0024] As shown in Figures 4 and 6, the inner bottom 21 of the vertical recess 13 bulges toward the inside of the side wall surface 4a, and has an arc-shaped cross section in which the central portion 21a in the short side direction 15 of the side wall surface 4a is curved more inwardly toward the side wall surface 4a than both end portions 21b.

[0025] As shown in Figures 1 to 3, the vertical recess 13 is divided into five (plurality of) finger rest recesses 19 by the horizontal protruding ribs 16. As shown in Figures 3 and 7, the horizontal protruding ribs 16 have a cross section curved in an arc shape that bulges outward from the inner bottom 21 of the vertical recess 13. The horizontal protruding ribs 16 are formed with guide surfaces 22 that guide the fingertips from the top edges 17 of the outer ends of the horizontal protruding ribs 16 to the finger rest recesses 19.

[0026] As shown in FIGS. 4 and 6, the top side 17 of the horizontally protruding rib 16 is warped so that a central portion 17a in the short side direction 15 of the side wall surface 4a is curved more inward of the side wall surface 4a than both end portions 17b.

[0027] The configuration of the grip portion 9 provided on the other of the pair of side wall surfaces 4a, 4c is the same as the configuration of the grip portion 9 provided on the side wall surface 4a described above, so detailed explanation will be omitted.

[0028] Reinforcing recesses 27 are formed in the side wall surfaces 4a, 4c to prevent the side wall surfaces 4a, 4c from deforming inward. These reinforcing recesses 27 are rectangular frame-shaped grooves that surround the periphery of each grip portion 9.

[0029] Each of the side wall surfaces 4b, 4d not provided with the grip portion 9 is provided with a vacuum absorption panel 29 that can deform toward the inside of the side wall surfaces 4b, 4d when the pressure inside the bottle 1 is reduced. The vacuum absorption panel 29 is formed with first and second recesses 31, 32 for absorbing reduced pressure. The first and second recesses 31, 32 are each a rectangular frame-shaped groove, and the first recess 31 is formed to surround the periphery of the second recess 32. The operation of the above configuration will now be described.

[0030] When grasping the bottle 1 with one's hand, as shown in Fig. 8, by placing the fingertips 35 in the finger rest recesses 19, the fingertips 35 are caught on the horizontally convex ribs 16, allowing the bottle 1 to be gripped stably. In this case, for example, by placing the fingertips 35 of the index finger F1, middle finger F2, ring finger F3, and little finger F4 in any of the four finger rest recesses 19 of the grip portion 9 on one of the opposing side wall surfaces 4a, and placing the fingertip 35 of the thumb F5 in any one of the finger rest recesses 19 of the grip portion 9 on the other opposite side wall surface 4c, all five fingertips 35 can be placed in the corresponding finger rest recesses 19. This allows each fingertip 35 to be caught on each of the horizontally protruding ribs 16, making it possible to hold the bottle 1 more stably.

[0031] When grasping bottle 1 as described above, if fingertip 35 is placed against top edge 17 of horizontal convex rib 16 instead of against finger rest recess 19, as shown by the solid line in Figure 7, fingertip 35 will be guided by guide surface 22 from horizontal convex rib 16 to finger rest recess 19. This ensures that fingertip 35 is placed reliably against finger rest recess 19, allowing bottle 1 to be gripped stably.

[0032] 4 and 6, the cross section of the inner bottom portion 21 of the vertical recess 13 has a shape in which the central portion 21a in the short side direction 15 of the side wall surface 4a is curved in an arc shape more inward than the end portions 21b of the side wall surface 4a. Therefore, when the bottle 1 is grasped with a hand with a fingertip 35 placed against the finger rest recess 19, the fingertip 35 is guided from the end portion 21b of the inner bottom portion 21 of the vertical recess 13 to the central portion 21a. This allows the fingertip 35 to be placed reliably against the finger rest recess 19.

[0033] Furthermore, even if the temperature of the contents in bottle 1 drops and the pressure inside bottle 1 is reduced after the heat-sterilized contents have been filled into bottle 1 and a cap (not shown) has been fitted to mouth portion 6, grip portion 9 is surrounded by reinforcing recess 27, preventing the grip portion 9 from deforming inward of side wall surfaces 4a, 4c.

[0034] Furthermore, when the pressure inside the bottle 1 is reduced as described above, the vacuum absorption panel 29 deforms inwardly toward the side wall surfaces 4b and 4d, thereby preventing the bottle 1 from deforming locally at locations other than the vacuum absorption panel 29. As a result, the grip portion 9 can be prevented from deforming inwardly toward the side wall surfaces 4a and 4c.

[0035] Furthermore, when grasping the bottle 1 with one's hand, four finger rest recesses 19 in the most optimal positions can be selected from the five upper and lower finger rest recesses 19 depending on the remaining amount of liquid in the bottle 1, the size of the bottle 1, the size of the hand, etc., and the tips 35 of the four fingers (index finger F1, middle finger F2, ring finger F3, and little finger F4) can be placed thereon. Similarly, one finger rest recess 19 in the most optimal position can be selected from the five upper and lower finger rest recesses 19 and the tips 35 of the thumb F5 can be placed thereon. This allows the bottle 1 to be gripped stably by selecting the most optimal positions depending on the remaining amount of liquid in the bottle 1, the size of the bottle 1, the size of the hand, etc. (Second embodiment)

[0036] 9, in the second embodiment, a shrink film 41 is attached to the exterior of the bottle 1. The grip portion 9 and the vacuum absorption panel 29 are covered with the shrink film 41.

[0037] As in the first embodiment described above, when grasping the bottle 1 with the hand, as shown in FIG. 10, by placing the fingertips 35 on the finger rest recess 19 from above the shrink film 41, the shrink film 41 bends and the fingertips 35 catch on the horizontal convex rib 16 from above the shrink film 41, allowing the bottle 1 to be held stably.

[0038] In each of the above-described embodiments, as shown in Figures 1 to 3 and 9, four horizontal convex ribs 16 and five finger rest recesses 19 are provided on the grip portion 9, but five or more horizontal convex ribs 16 and six or more finger rest recesses 19 may also be provided. In each of the above embodiments, a rectangular bottle 1 is shown, but the bottle 1 may be a polygon other than a rectangular shape. [Explanation of symbols]

[0039] 1 bottle 4a~4d Side wall 9 Grip 12 Long side direction 13 Vertical recess 15 Short side direction 16 Horizontal convex rib 17 Top 17a Center of the apex 17b Top edge 19 Finger rest recess 21 Inner bottom 21a Center of the inner bottom 21b Inner bottom edge 22 Guide surface 27 Reinforcing recess 29 Vacuum absorption panel 35 fingertips

Claims

1. A rectangular bottle having a plurality of sidewalls, A grip portion to be held by fingertips is provided on the side wall surface, The grip portion has a longitudinal recess formed along the long side direction of the side wall surface, and a plurality of horizontal protruding ribs extending across the longitudinal recess in the short side direction of the side wall surface, The vertical recess is divided into multiple finger rest recesses by horizontal convex ribs, The horizontal convex rib has a curved cross section that bulges outward from the inner bottom of the vertical concave portion, A bottle characterized in that a guide surface is formed on the horizontal convex rib to guide the fingertip from the top edge of the outer end of the horizontal convex rib to the finger rest recess.

2. Four or more horizontal convex ribs are formed within the vertical concave portion, 2. The bottle according to claim 1, wherein the vertical recess is divided into five or more finger rest recesses by horizontal convex ribs.

3. 2. The bottle according to claim 1, wherein the inner bottom of the vertical recess bulges toward the inside of the side wall surface, and the central portion in the short side direction of the side wall surface has an arc-shaped cross section that curves more inwardly than both end portions of the side wall surface.

4. 2. The bottle according to claim 1, wherein the top edge of the horizontal convex rib is curved so that the central portion in the direction of the short side of the side wall surface is curved more inwardly than both end portions of the side wall surface.

5. 2. The bottle according to claim 1, wherein the grip portions are provided on a pair of side wall surfaces that face each other in the direction of the short side.

6. A reinforcing recess is formed on the side wall surface to suppress inward deformation of the side wall surface, 2. The bottle according to claim 1, wherein the reinforcing recess surrounds the periphery of the grip portion.

7. 2. The bottle according to claim 1, wherein a vacuum absorption panel capable of deforming inwardly on the side wall surface when the pressure inside the bottle is reduced is provided on the side wall surface where no grip portion is provided.

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