WO2012043371A1 - ボトル - Google Patents
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- Publication number
- WO2012043371A1 WO2012043371A1 PCT/JP2011/071597 JP2011071597W WO2012043371A1 WO 2012043371 A1 WO2012043371 A1 WO 2012043371A1 JP 2011071597 W JP2011071597 W JP 2011071597W WO 2012043371 A1 WO2012043371 A1 WO 2012043371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bottle
- wall portion
- peripheral wall
- radial direction
- rising peripheral
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D23/00—Details of bottles or jars not otherwise provided for
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/0261—Bottom construction
- B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D79/00—Kinds or details of packages, not otherwise provided for
- B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
- B65D79/008—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars
- B65D79/0081—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars in the bottom part thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
- B65D2501/0036—Hollow circonferential ribs
Definitions
- the present invention relates to a bottle.
- This application claims priority based on Japanese Patent Application No. 2010-220706 filed in Japan on September 30, 2010 and Japanese Patent Application No. 2011-163102 filed in Japan on July 26, 2011. The contents are incorporated here.
- the bottom wall portion of the bottom portion is provided with a grounding portion located on the outer peripheral edge portion, and this grounding.
- a rising peripheral wall portion that extends from the inside in the bottle radial direction and extends upward, a movable wall portion that protrudes inward in the bottle radial direction from the upper end portion of the rising peripheral wall portion, and a bottle radial direction of the movable wall portion And a depressed peripheral wall portion that extends upward from the inner end portion of the same.
- the movable wall portion rotates around the connecting portion with the rising peripheral wall portion so as to move the depressed peripheral wall portion upward, thereby absorbing the reduced pressure in the bottle.
- the present invention provides a bottle that can suppress a sense of incongruity that a user feels when looking at the bottom from the outside of a bottle filled with contents. Objective.
- the second object of the present invention is to provide a bottle capable of improving the vacuum absorption performance in the bottle in consideration of such circumstances.
- the first invention relates to a bottle formed of a synthetic resin material into a bottomed cylindrical shape.
- the bottom wall part of the bottom of the bottle is: a grounding part located at the outer peripheral edge; a rising peripheral wall part extending from the inner side in the bottle radial direction to the grounding part and extending upward; a bottle from the upper end part of the rising peripheral wall part
- An annular movable wall portion projecting inward in the radial direction; and a depressed peripheral wall portion extending upward from an inner end portion in the bottle radial direction of the movable wall portion.
- the movable wall portion is rotatably disposed around a connecting portion with the rising peripheral wall portion so as to move the depressed peripheral wall portion upward, and an uneven portion is formed on the entire periphery of the rising peripheral wall portion. .
- the uneven part is formed on the rising peripheral wall part. Therefore, it is possible to suppress a sense of incongruity that is felt when the user looks at the bottom of the bottle filled with the contents. In other words, the user sees the bottom of the bottle filled with the contents by, for example, the light incident on the rising peripheral wall being irregularly reflected by the irregularities or the contents in the bottle being filled in the irregularities. The uncomfortable feeling that you will remember when you hit.
- the second invention according to the present invention is the bottle according to the first invention, wherein the lower end of the convex portion of the concavo-convex portion is connected to the grounding portion from the inside in the bottle radial direction.
- the lower end of the convex portion of the concavo-convex portion is connected to the grounding portion from the inside in the bottle radial direction. Therefore, when this bottle is made to stand on its own, not only the grounding portion but also the lower end of the convex portion can be brought into contact with the grounding surface, and the grounding stability of the bottle can be improved.
- the rising peripheral wall portion has a plurality of vertical ribs that are recessed toward the inside in the bottle radial direction and opened upward. It is formed along the bottle circumferential direction.
- the effect of absorbing the reduced pressure is improved by moving the depressed peripheral wall portion upward by the rotation of the movable wall portion during the pressure reduction in the bottle.
- This effect is obtained because the upper end portion of the rising peripheral wall portion rotates around the connecting portion with the rising peripheral wall portion in relation to the diameter expansion or contraction of the rising peripheral wall portion due to movement in the bottle radial direction. it is conceivable that.
- the bottle according to the third aspect of the invention since the plurality of concave vertical ribs opened upward are formed on the rising peripheral wall portion along the bottle circumferential direction, the upper end side is the bottle. Easy to move flexibly in the radial direction. Therefore, the movable wall portion can be easily rotated downward when filling the contents, and the volume in the bottle can be increased to increase the vacuum absorption capacity immediately after filling. Therefore, the reduced pressure absorption performance can be improved. That is, the movable wall portion deformed downward when the contents are filled moves inward of the bottle in a reduced pressure state generated after sealing and cooling. Since this large amount of movement can be ensured, the vacuum absorption capacity can be increased.
- the upper end of the rising peripheral wall is easy to move flexibly in the bottle radial direction, so that the movable wall can be moved up and down flexibly while following the internal pressure change in the bottle with high sensitivity. Can do. Also in this point, the reduced pressure absorption performance can be improved.
- the vertical rib has a peripheral length of the rising peripheral wall portion with respect to a peripheral length of the rising peripheral wall portion when the vertical rib is not formed. , 1.05 to 1.3 times the range.
- a plurality of vertical ribs are formed with an appropriate number, rib width, etc. with respect to the rising peripheral wall portion so that the peripheral length of the rising peripheral wall portion is within the above range. Therefore, the vacuum absorption performance can be improved by stably moving the upper end portion of the rising peripheral wall portion in the bottle radial direction while ensuring ease of bottle molding.
- the bottle according to the present invention can suppress a sense of incongruity that is felt when the bottom of the bottle filled with contents is viewed from the outside. Furthermore, according to the bottle according to the present invention, the vacuum absorption performance in the bottle can be improved.
- FIG. 3 is a longitudinal sectional view of the bottle taken along line AA shown in FIG. 2. It is a side view of the bottle in 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the bottom part vicinity of the bottle shown in FIG. FIG. 6 is a cross-sectional view of the bottle along the line BB shown in FIG. 5.
- the bottle 1 includes a mouth portion 11, a shoulder portion 12, a trunk portion 13, and a bottom portion 14.
- the mouth portion 11, the shoulder portion 12, the trunk portion 13, and the bottom portion 14 are connected in this order with their central axes positioned on a common axis.
- the common axis is the bottle axis O
- the mouth part 11 side is the upper side along the bottle axis O direction
- the bottom part 14 side is the lower side along the bottle axis O direction
- the direction orthogonal to the bottle axis O is the bottle radial direction.
- the direction of circling around the bottle axis O is taken as the bottle circumferential direction.
- the bottle 1 is formed by blow molding a preform formed into a bottomed cylinder by injection molding, and is integrally formed of a synthetic resin material.
- a cap (not shown) is attached to the mouth portion 11.
- each of the mouth portion 11, the shoulder portion 12, the body portion 13, and the bottom portion 14 has a circular cross-sectional view shape orthogonal to the bottle axis O.
- a first annular groove 16 is continuously formed over the entire circumference at a connection portion between the shoulder portion 12 and the body portion 13.
- drum 13 is formed in a cylinder shape, and between the both ends of the bottle axis
- drum 13 is formed in the diameter smaller than these both ends.
- a plurality of second annular grooves 15 are continuously formed in the body portion 13 over the entire circumference at intervals in a direction toward the bottle axis O.
- a plurality of reinforcing protrusions 15a are provided in each second annular groove 15 so as to protrude outward in the bottle radial direction at intervals in the circumferential direction.
- each of the plurality of second annular grooves 15 the positions along the bottle circumferential direction where the plurality of reinforcing protrusions 15a are disposed are set to be the same.
- the reinforcing protrusion 15 a is located on the inner side in the bottle radial direction with respect to the outer peripheral surface of the body portion 13.
- a third annular groove 20 is continuously formed over the entire circumference at the connecting portion between the body portion 13 and the bottom portion 14.
- the bottom portion 14 is formed in a cup shape, the heel portion 17 whose upper end opening is connected to the lower end opening of the trunk portion 13, the lower end opening of the heel portion 17 is closed, and the outer peripheral edge portion is connected to the grounding portion 18.
- a bottom wall portion 19 The heel portion 17 is formed with a fourth annular groove 31 continuously over the entire circumference. However, the depth of the fourth annular groove 31 is shallower than that of the third annular groove 20.
- grooved part 17a is formed in the outer peripheral surface of the whole heel part 17 and the outer peripheral surface of the lower end part of the trunk
- the outer peripheral surfaces of the heel portions 17 of the adjacent bottles 1 and the outer peripheral surfaces of the lower end portions of the body portions 13 are in close contact with each other. Occurrence of slipping (blocking) is suppressed.
- the uneven portion 17 a is also formed on the surface of the third annular groove 20 and the surface of the fourth annular groove 31.
- the bottom wall portion 19 is connected to the ground contact portion 18 from the inside in the bottle radial direction and extends upward, and from the upper end portion of the rising peripheral wall portion 21 to the inside in the bottle radial direction.
- An annular movable wall portion 22 that protrudes toward the outside and a depressed peripheral wall portion 23 that extends upward from an inner end portion of the movable wall portion 22 in the bottle radial direction are provided.
- the rising peripheral wall portion 21 is gradually reduced in diameter from the lower side toward the upper side.
- the movable wall portion 22 is formed in a curved shape that protrudes downward, and extends gradually downward from the outside in the bottle radial direction toward the inside.
- the movable wall portion 22 and the rising peripheral wall portion 21 are connected via a curved surface portion 25 that protrudes upward.
- the movable wall portion 22 is rotatable about the curved surface portion (connection portion between the movable wall portion 22 and the rising peripheral wall portion 21) 25 so that the depressed peripheral wall portion 23 is moved upward.
- a plurality of ribs 26 are radially arranged around the bottle axis O on the movable wall portion 22. In the illustrated example, the rib 26 extends intermittently and straightly in the bottle radial direction. The rib 26 is recessed toward the upper side of the bottle.
- the depressed peripheral wall portion 23 is disposed coaxially with the bottle axis O, and gradually increases in diameter from the top to the bottom as shown in FIG.
- a disc-shaped top wall 24 disposed coaxially with the bottle axis O is connected to the upper end portion of the depressed peripheral wall portion 23, and the entire depressed peripheral wall portion 23 and the top wall 24 form a top tube shape. Yes.
- the depressed peripheral wall portion 23 is formed in a circular shape in a cross-sectional view.
- the depressed peripheral wall portion 23 has a plurality of curved wall portions 23a formed in a curved shape protruding toward the inner side in the bottle radial direction, and is continuously provided in the bottle axis O direction via the bent portion 23b.
- the uneven portion 30 is formed on the rising peripheral wall portion 21 over the entire circumference.
- the concavo-convex portion 30 has a protruding portion (convex portion) 30a formed in a curved shape protruding toward the inner side in the bottle radial direction in a bottom view of the bottle 1 as shown in FIG. It was established. Further, as shown in FIG. 3, the lower end of the protrusion 30a is connected to the grounding portion 18 from the inside in the bottle radial direction. Further, the upper end of the protrusion 30 a is positioned below the upper end of the rising peripheral wall portion 21.
- the inner end of the protrusion 30 a in the bottle radial direction is located on the outer side in the bottle radial direction with respect to the curved surface portion 25 connecting the movable wall portion 22 and the rising peripheral wall portion 21.
- the inner surface located in the inside of the bottle 1 in the protrusion 30a is formed in the curved surface shape recessed toward the inner side of a bottle radial direction.
- the heel lower end portion 27 connected to the ground contact portion 18 from the outside in the bottle radial direction is formed to have a smaller diameter than the upper heel portion 28 connected to the heel lower end portion 27 from above.
- the upper heel portion 28 is connected to the trunk portion 13.
- the fourth annular groove 31 described above is formed in the upper heel portion 28.
- the connecting portion 29 between the heel lower end portion 27 and the upper heel portion 28 is gradually reduced in diameter from the upper side toward the lower side.
- the connecting portion 29 extends linearly in a direction inclined to the bottle axis O in a longitudinal sectional view.
- the upper end positions of the heel lower end portion 27 and the rising peripheral wall portion 21 are equal to each other.
- the difference between the outer diameter of the heel lower end portion 27 and the outer diameter of the upper heel portion 28 is, for example, about 1.0 mm.
- the bottle 1 since the uneven portion 30 is formed on the rising peripheral wall portion 21, the user looks at the bottom portion 14 of the bottle 1 filled with the contents. You can reduce the uncomfortable feeling you sometimes learn. This discomfort occurs, for example, when light incident on the rising peripheral wall portion 21 is irregularly reflected by the uneven portion 30 or the contents in the bottle 1 are also filled in the uneven portion 30. As a specific discomfort, for example, the color of the contents filled between the heel lower end portion 27 and the rising peripheral wall portion 21 appears to be different (thin) compared to other portions, and the like. It is done.
- the lower end of the protrusion 30a of the concavo-convex part 30 is connected to the grounding part 18 from the inside in the bottle radial direction, when the bottle 1 is made to stand up, not only the grounding part 18 but also the lower end of the protrusion 30a Can be brought into contact with the ground contact surface, and the ground contact stability of the bottle can be improved.
- the heel lower end portion 27 of the heel portion 17 is formed to have a smaller diameter than the upper heel portion 28, it is possible to suppress the sink at the heel lower end portion 27 when the bottle 1 is blow molded. . As a result, deformation of the ground contact portion 18 connected to the heel lower end portion 27 can be suppressed.
- the connecting portion 29 between the heel lower end portion 27 and the upper heel portion 28 is gradually reduced in diameter from the upper side to the lower side, the above-described effects can be reliably achieved while ensuring good moldability.
- the rib 26 is formed on the movable wall portion 22, but the rib 26 may not be formed. Further, the rib 26 may extend continuously, may be curved, or may protrude downward.
- the form of the concavo-convex portion 30 formed on the rising peripheral wall portion 21 is not limited to the above embodiment, and may be changed as appropriate.
- rising peripheral wall portion 21 may be appropriately changed, for example, to extend in parallel along the bottle axis O direction.
- the movable wall portion 22 may be appropriately changed, for example, extending in parallel along the bottle radial direction.
- depressed peripheral wall portion 23 may be appropriately changed, for example, to extend in parallel along the bottle axis O direction, and the top wall 24 may not be provided.
- the uneven portion 17 a may not be formed, and the reinforcing protrusion 15 a may not be disposed in the second annular groove 15.
- the synthetic resin material forming the bottle 1 may be appropriately changed, for example, polyethylene terephthalate, polyethylene naphthalate, amorphous polyester, or a blended material thereof, or a laminated structure.
- the cross-sectional view orthogonal to the bottle axis O of each of the shoulder portion 12, the body portion 13 and the bottom portion 14 is a circular shape.
- the shape is not limited to this. May be.
- the bottle 101 according to the present embodiment includes a mouth portion 111, a shoulder portion 112, a trunk portion 113, and a bottom portion 114.
- the mouth portion 111, the shoulder portion 112, the body portion 113, and the bottom portion 114 are connected in this order with their central axes positioned on a common axis.
- the common axis is the bottle axis O
- the mouth 111 side is the upper side along the bottle axis O direction
- the bottom 114 side is the lower side along the bottle axis O direction
- the direction perpendicular to the bottle axis O is the bottle radial direction.
- the direction of circling around the bottle axis O is taken as the bottle circumferential direction.
- the bottle 101 is formed by blow molding a preform formed into a bottomed cylinder by injection molding, and is integrally formed of a synthetic resin material. Further, a cap (not shown) is screwed into the mouth portion 111. Furthermore, in the mouth part 111, the shoulder part 112, the body part 113, and the bottom part 114, the cross-sectional view shapes orthogonal to the bottle axis O are all circular.
- a first annular groove 115 is continuously formed over the entire circumference at the connection portion between the shoulder portion 112 and the body portion 113.
- the body portion 113 is formed in a cylindrical shape and has a smaller diameter than a lower end portion of the shoulder portion 112 and a heel portion 117 described later of the bottom portion 114.
- a plurality of second annular grooves 116 are formed in the body 113 at intervals in the bottle axis O direction. In the illustrated example, five second annular grooves 116 are formed at equal intervals in the bottle axis O direction. Each of these second annular grooves 116 is a groove formed continuously over the entire circumference of the body 113.
- the bottom portion 114 is formed in a cup shape, the heel portion 117 whose upper end opening portion is connected to the lower end opening portion of the body portion 113, the lower end opening portion of the heel portion 117 is closed, and the outer peripheral edge portion is connected to the grounding portion 118.
- a heel lower end portion 127 that is continuous with the ground contact portion 118 from the outside in the bottle radial direction is formed to have a smaller diameter than an upper heel portion 128 that is continuous with the heel lower end portion 127 from above.
- the upper heel portion 128 is the maximum outer diameter portion of the bottle 101 together with the lower end portion of the shoulder portion 112.
- the connecting portion 129 between the heel lower end portion 127 and the upper heel portion 128 is gradually reduced in diameter from the upper side toward the lower side, whereby the heel lower end portion 127 has a smaller diameter than the upper heel portion 128.
- a plurality of third annular concave grooves 120 having substantially the same depth as the first annular concave groove 115 are continuously formed over the entire circumference.
- two third annular grooves 120 are formed at an interval in the bottle axis O direction.
- the bottom wall portion 119 is connected to the grounding portion 118 from the inner side in the bottle radial direction and extends upward, and from the upper end portion of the rising peripheral wall portion 121 to the inner side in the bottle radial direction.
- An annular movable wall portion 122 projecting toward the top, and a depressed peripheral wall portion 123 extending upward from an inner end portion of the movable wall portion 122 in the bottle radial direction.
- the movable wall portion 122 is formed in a curved surface that protrudes downward, and extends gradually downward from the outside in the bottle radial direction.
- the movable wall portion 122 and the rising peripheral wall portion 121 are connected via a curved surface portion 125 that protrudes upward.
- the movable wall portion 122 is rotatable about the curved surface portion (connection portion between the movable wall portion 122 and the rising peripheral wall portion 121) 125 so as to move the depressed peripheral wall portion 123 upward. Yes.
- the rising peripheral wall 121 is gradually reduced in diameter from the bottom to the top. Specifically, as it goes from the ground contact portion 118 toward the curved surface portion 125 that is a connecting portion with the movable wall portion 122, it gradually inclines at an inclination angle ⁇ with respect to the bottle axis O toward the inside in the bottle radial direction. It is extended.
- a plurality of vertical ribs 130 are formed on the rising peripheral wall portion 121 at regular intervals along the circumferential direction of the bottle over the entire circumference.
- These vertical ribs 130 are concave ribs that are recessed toward the inside in the bottle radial direction, and extend from the ground contact portion 118 to the curved surface portion 125 that is the connecting portion with the movable wall portion 122 (the rising height of the rising peripheral wall portion 121). Over the entire length).
- the vertical ribs 130 are formed up to the curved surface portion 125, they are opened upward.
- the depressed peripheral wall portion 123 is disposed coaxially with the bottle axis O and gradually increases in diameter from the upper side toward the lower side, and is formed in a circular shape in a cross-sectional view.
- a disc-shaped top wall 124 arranged coaxially with the bottle axis O is connected to the upper end portion of the depressed peripheral wall portion 123, and the entire depressed peripheral wall portion 123 and the top wall 124 form a top tube shape.
- the depressed peripheral wall portion 123 includes a curved wall portion 123 a that is formed in a curved shape that protrudes toward the inside in the bottle radial direction, and whose upper end portion is connected to the outer peripheral edge portion of the top wall 124.
- the curved wall portion 123a is connected to the inner end portion of the movable wall portion 122 in the bottle radial direction via a curved surface portion 126 whose lower end protrudes downward.
- the movable wall portion 122 rotates around the curved surface portion 125 in relation to the diameter expansion or contraction of the rising peripheral wall portion 121 due to the upper end portion of the rising peripheral wall portion 121 moving in the bottle radial direction.
- the upper end side (the curved surface part 125 side) is in the bottle radial direction.
- the movable wall portion 122 can be easily rotated downward when filling the contents, and the volume in the bottle 101 can be increased to increase the reduced pressure absorption capacity immediately after filling. Therefore, the reduced pressure absorption performance can be improved.
- the movable wall portion 122 of the present embodiment gradually extends downward from the curved surface portion 125 toward the inner side in the bottle radial direction, the movable wall portion 122 is rotated downward toward the lower side during the filling. It is easy to move and it is easy to effectively improve the vacuum absorption performance.
- the upper end of the rising peripheral wall 121 is easy to move flexibly in the bottle radial direction, so that the movable wall 122 can be flexibly moved up and down while following the internal pressure change in the bottle 1 with high sensitivity. Can be moved. Also in this point, the reduced pressure absorption performance can be improved.
- the bottle 101 of the present embodiment has an internal volume of 1 liter or less and a grounding diameter of 85 mm or less, and is used when filling contents at, for example, 80 to 100 ° C. (preferably 85 to 93 ° C.). Suitable for (so-called heat-resistant bottles). It can also be used for bottles filled with contents at 75 ° C. or lower (more specifically, a temperature range of 60 to 75 ° C.).
- the rising peripheral wall portion 121 is formed so as to be gradually inclined inward in the bottle radial direction from the grounding portion 118 toward the curved surface portion 125, but is perpendicular to the curved surface portion 125 from the grounding portion 118. You may form so that it may stand up. However, as in the present embodiment, it is preferable that the rising peripheral wall 121 is inclined.
- the plurality of vertical ribs 130 are formed at equal intervals over the entire circumference of the rising peripheral wall portion 121, it is only necessary that the plurality of vertical ribs 130 be formed along the circumferential direction of the bottle even if the intervals are not equal. At this time, it may be formed at intervals along the bottle circumferential direction, or may be formed continuously. However, when the vertical ribs 130 are formed at equal intervals along the bottle circumferential direction, it is preferable because the upper end portion of the rising peripheral wall portion 121 can be easily moved in the bottle radial direction over the entire circumference.
- the vertical rib 130 is formed from the ground contact portion 118 of the rising peripheral wall portion 121 to the curved surface portion 125, it may be open upward, and the vertical rib 130 may be formed only on the curved surface portion 125 side. good. Even in such a case, the upper end portion of the rising peripheral wall portion 121 can be flexibly moved in the bottle radial direction.
- the number of the longitudinal ribs 130, the depth of the longitudinal ribs 130, the rib interval between the longitudinal ribs 130 adjacent to each other in the bottle circumferential direction, and the like may be determined according to the size, height, and the like of the rising peripheral wall portion 121.
- the peripheral length (length in the bottle circumferential direction) of the rising peripheral wall portion 121 including the vertical rib 130 is in the range of 1.05 to 1.3 times the peripheral length when the vertical rib 130 is not formed. It is preferable to form the vertical ribs 130 so as to fit in the space.
- the movable wall 122 may be appropriately changed such as projecting in parallel along the bottle radial direction or inclining upward. Further, the movable wall portion 122 may be appropriately changed, for example, formed in a planar shape or a concave curved shape that is recessed upward.
- the cross-sectional view shape orthogonal to the bottle axis O of each of the shoulder portion 112, the trunk portion 113, and the bottom portion 114 is a circular shape, but is not limited thereto, for example, a polygonal shape, etc. You may change suitably.
- the synthetic resin material forming the bottle 101 may be appropriately changed, for example, polyethylene terephthalate, polyethylene naphthalate, amorphous polyester, or a blend material thereof.
- the bottle 101 is not limited to a single layer structure, and may be a laminated structure having an intermediate layer. Examples of the intermediate layer include a layer made of a resin material having a gas barrier property, a layer made of a recycled material, or a layer made of a resin material having an oxygen absorption property.
- the peripheral length of the rising peripheral wall portion 121 including the vertical ribs 130 is changed by changing the combination of the number of vertical ribs 130, the rib width, the rib interval, and the like, and the upper end of the rising peripheral wall portion 121 is filled when the contents are filled.
- An example in which the part changes in the bottle diameter direction is tested (analyzed).
- the rising peripheral wall portion when the vertical rib 130 was not formed was used as a reference model, and the test result was evaluated by comparing with this reference model.
- the rising peripheral wall portion used as the reference model as in the second embodiment, the rising peripheral wall portion is gradually inclined toward the inner side in the bottle radial direction from the grounding portion 118 toward the curved surface portion 125. did.
- the inclination angle ⁇ was set to 5.2 degrees.
- the length in the bottle circumferential direction at the central portion in the vertical direction of the rising peripheral wall portion 121 is defined as the circumferential length.
- the height from the ground contact surface to the uppermost portion of the curved surface portion 125 is 7.7 mm.
- adopts that a cross section is a semicircular arc shape, it can also be set as another shape (V shape, trapezoid shape, etc.).
- vertical ribs 30 having a depth of 0.3 mm and a rib width of 0.6 mm are formed on the rising peripheral wall portion of the above-described reference model at intervals of 4 degrees around the bottle axis O. 90 were formed. The circumference in this case was 107.5% when the circumference in the reference model was 100%.
- the vertical rib 30 having a depth of 0.7 mm and a rib width of 1.4 mm is formed on the rising peripheral wall portion of the above-described reference model at intervals of 4 degrees around the bottle axis O. 90 were formed.
- the circumference in this case was 126.7% when the circumference in the reference model was 100%.
- a predetermined internal pressure (0.5 kg / cm 2 (49 Kpa)) was applied to the bottle 101 including the reference model and the above-described four patterns of the rising peripheral wall portion 121 assuming the filling of the contents.
- the movable wall portion 122 rotated downward about the curved surface portion 125, and the upper end portion of the rising peripheral wall portion 121 moved toward the inside in the bottle radial direction. That is, the rising peripheral wall 121 is deformed so that the inclination angle ⁇ is larger than 5.2 degrees.
- the tilt angle ⁇ after the deformation is 8.2 degrees in the reference model, 8.7 degrees in the first pattern, 8.9 degrees in the second pattern, 9.4 degrees in the third pattern, and 9 degrees in the fourth pattern. It was 5 degrees.
- the rising peripheral wall portion 121 can be inclined at a larger inclination angle ⁇ , for example, when filling the contents. It could be confirmed. That is, it has been confirmed that the upper end side of the rising peripheral wall 121 can be flexibly moved in the bottle radial direction and the movable wall 122 can be rotated downward. In particular, it was confirmed that the above-mentioned effect was more remarkable as the circumference ratio increased.
- the peripheral length of the rising peripheral wall portion 121 on which the vertical ribs 130 are formed is equal to the rising peripheral wall portion 121 (reference model) when the vertical ribs 130 are not formed. It was confirmed that the above effect was obtained if the film was formed so as to fall within the range of 1.05 to 1.3 times the perimeter of ().
- the bottle according to the present invention can suppress a sense of incongruity that is felt when the bottom is viewed from the outside of the bottle filled with the contents. Furthermore, according to the bottle according to the present invention, the vacuum absorption performance in the bottle can be improved.
- Bottle shaft 1 101 ... Bottle 14, 114 ... Bottom 18, 118 ... Grounding part 19, 119 ... Bottom wall part 21, 121 ... Rising peripheral wall part 22, 122 ... Movable wall part 23, 123 ... Depression Peripheral wall portion 25, 125 ... curved surface portion (connection portion between movable wall portion and rising peripheral wall portion) 30 ... Uneven part 30a ... Projection (convex part) 130 ... Vertical rib
Abstract
Description
以下、図面を参照し、本発明の第1実施形態について説明する。
本実施形態に係るボトル1は、図1から図3に示されるように、口部11と、肩部12と、胴部13と、底部14とを備えている。この口部11、肩部12、胴部13および底部14が、それぞれの中心軸線を共通軸上に位置させた状態で、この順に連設されている。
なお、このボトル1は、射出成形により有底筒状に形成されたプリフォームが、ブロー成形されて形成され、合成樹脂材料で一体に形成されている。また、口部11には、図示されないキャップが装着される。さらに、口部11、肩部12、胴部13および底部14について、ボトル軸Oに直交するそれぞれの横断面視形状は、いずれも円形状をしている。
可動壁部22は、下方に向けて突となる曲面状に形成され、ボトル径方向の外側から内側に向かうに従い漸次下方に向かうように延びている。この可動壁部22と立ち上がり周壁部21とは、上方に向けて突となる曲面部25を介して連結されている。そして、可動壁部22は、陥没周壁部23を上方に向けて移動させるように、前記曲面部(可動壁部22と立ち上がり周壁部21との接続部分)25を中心に回動自在となっている。可動壁部22には、図2に示されるように、複数のリブ26がボトル軸Oを中心に放射状に配設されている。図示の例では、リブ26は、ボトル径方向に断続的かつ真直ぐに延びている。このリブ26は、ボトルの上方に向けて窪んでいる。
以下、図面を参照し、本発明の第2実施形態に係るボトルを説明する。
(ボトルの構成)
本実施形態に係るボトル101は、図4に示すように、口部111と、肩部112と、胴部113と、底部114とを備える。これら口部111、肩部112、胴部113および底部114が、それぞれの中心軸線を共通軸上に位置した状態でこの順に連設されている。
なお、ボトル101は、射出成形により有底筒状に形成されたプリフォームがブロー成形されて形成され、合成樹脂材料で一体に形成されている。また、口部111には、図示されないキャップが螺着される。さらに、口部111、肩部112、胴部113および底部114において、ボトル軸Oに直交するそれぞれの横断面視形状は、いずれも円形状をしている。
このように構成されたボトル101内が減圧すると、曲面部125を中心にして可動壁部122が上方に向かって回動することで、可動壁部122は陥没周壁部123を上方に向けて持ち上げるように移動する。即ち、減圧時にボトル101の底壁部119を積極的に変形させることで、ボトル101の内圧変化(減圧)を吸収することができる。
次に、縦リブ130の本数、リブ幅やリブ間隔等の組み合わせを変更することで、縦リブ130を含む立ち上がり周壁部121の周長を変化させ、内容物の充填時に立ち上がり周壁部121の上端部がボトル径方向にどのように変化するかを試験(解析)した実施例について説明する。
(1)第1パターンは、上記した基準モデルの立ち上がり周壁部に、深さ0.3mmで且つリブ幅が0.6mmとされた縦リブ30を、ボトル軸O回りに4度のリブ間隔毎で90本形成したものを採用した。この場合の周長は、上記基準モデルにおける周長を100%とすると107.5%であった。
(2)第2パターンは、上記した基準モデルの立ち上がり周壁部に、深さ0.7mmで且つリブ幅が1.4mmとされた縦リブ130を、ボトル軸O回りに12度のリブ間隔毎で30本形成したものを採用した。この場合の周長は、上記基準モデルにおける周長を100%とすると108.9%であった。
(3)第3パターンは、上記した基準モデルの立ち上がり周壁部に、深さ0.7mmで且つリブ幅が1.4mmとされた縦リブ30を、ボトル軸O回りに6度のリブ間隔毎で60本形成したものを採用した。この場合の周長は、上記基準モデルにおける周長を100%とすると117.8%であった。
(4)第4パターンは、上記した基準モデルの立ち上がり周壁部に、深さ0.7mmで且つリブ幅が1.4mmとされた縦リブ30を、ボトル軸O回りに4度のリブ間隔毎で90本形成したものを採用した。この場合の周長は、上記基準モデルにおける周長を100%とすると126.7%であった。
1、101…ボトル
14、114…底部
18、118…接地部
19、119…(底部の)底壁部
21,121…立ち上がり周壁部
22、122…可動壁部
23,123…陥没周壁部
25、125…曲面部(可動壁部と立ち上がり周壁部との接続部分)
30…凹凸部
30a…突部(凸部分)
130…縦リブ
Claims (4)
- 合成樹脂材料で有底筒状に形成されたボトルであって:
底部の底壁部は;
外周縁部に位置する接地部と;
この接地部にボトル径方向の内側から連なり上方に向けて延びる立ち上がり周壁部と;
この立ち上がり周壁部の上端部からボトル径方向の内側に向けて突出する環状の可動壁部と;
この可動壁部のボトル径方向の内端部から上方に向けて延びる陥没周壁部と;を備え、
前記可動壁部は、前記陥没周壁部を上方に向けて移動させるように、前記立ち上がり周壁部との接続部分を中心に回動自在に配設され、
前記立ち上がり周壁部に凹凸部が全周にわたって形成されているボトル。 - 請求項1記載のボトルであって、
前記凹凸部の凸部分の下端は、前記接地部にボトル径方向の内側から連なっているボトル。 - 請求項1記載のボトルであって、
前記立ち上がり周壁部には、ボトル径方向の内側に向けて窪み且つ上方に向けて開放された複数の縦リブが、ボトル周方向に沿って形成されているボトル。 - 請求項3に記載のボトルにおいて、
前記縦リブは、前記立ち上がり周壁部の周長が、この縦リブの未形成時における立ち上がり周壁部の周長に対して、1.05~1.3倍の範囲内に収まるように形成されているボトル。
Priority Applications (6)
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EP11828928.9A EP2623428B1 (en) | 2010-09-30 | 2011-09-22 | Bottle |
AU2011309320A AU2011309320B2 (en) | 2010-09-30 | 2011-09-22 | Bottle |
KR1020137011053A KR101813049B1 (ko) | 2010-09-30 | 2011-09-22 | 병 |
CA2813075A CA2813075C (en) | 2010-09-30 | 2011-09-22 | Bottle |
CN201180046839.3A CN103189277B (zh) | 2010-09-30 | 2011-09-22 | 瓶 |
US13/824,872 US9085387B2 (en) | 2010-09-30 | 2011-09-22 | Synthetic resin bottle |
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JP2010220706A JP5452438B2 (ja) | 2010-09-30 | 2010-09-30 | ボトル |
JP2010-220706 | 2010-09-30 | ||
JP2011-163102 | 2011-07-26 | ||
JP2011163102A JP5789440B2 (ja) | 2011-07-26 | 2011-07-26 | ボトル |
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US (1) | US9085387B2 (ja) |
EP (1) | EP2623428B1 (ja) |
KR (1) | KR101813049B1 (ja) |
CN (1) | CN103189277B (ja) |
AU (1) | AU2011309320B2 (ja) |
CA (1) | CA2813075C (ja) |
TW (1) | TWI561435B (ja) |
WO (1) | WO2012043371A1 (ja) |
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AU2011309320B2 (en) | 2016-01-14 |
EP2623428A1 (en) | 2013-08-07 |
KR20140125280A (ko) | 2014-10-28 |
US20130213926A1 (en) | 2013-08-22 |
CN103189277B (zh) | 2015-01-14 |
EP2623428B1 (en) | 2017-04-26 |
CN103189277A (zh) | 2013-07-03 |
CA2813075C (en) | 2018-04-10 |
EP2623428A4 (en) | 2014-03-26 |
TW201233593A (en) | 2012-08-16 |
AU2011309320A1 (en) | 2013-05-02 |
KR101813049B1 (ko) | 2017-12-29 |
TWI561435B (en) | 2016-12-11 |
CA2813075A1 (en) | 2012-04-05 |
US9085387B2 (en) | 2015-07-21 |
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