EP3564141A1 - Resin container - Google Patents
Resin container Download PDFInfo
- Publication number
- EP3564141A1 EP3564141A1 EP17887639.7A EP17887639A EP3564141A1 EP 3564141 A1 EP3564141 A1 EP 3564141A1 EP 17887639 A EP17887639 A EP 17887639A EP 3564141 A1 EP3564141 A1 EP 3564141A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- resin made
- curved
- continuous
- curved portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
-
- 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
-
- 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
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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
- B65D1/40—Details of walls
- B65D1/42—Reinforcing or strengthening parts or members
-
- 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
- B65D79/0084—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 sidewall or shoulder part thereof
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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
- 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
- B65D2501/0027—Hollow longitudinal ribs
Definitions
- This invention relates to a resin made container such as a PET bottle.
- Patent Document 1 a PET bottle having a constricted portion and a plurality of annular grooves, which are provided in a body portion of the bottle.
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2008-13180
- an object of the invention is to improve the buckling resistance of a resin made container without impairing its aesthetic feature.
- the resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost portion of the bottle; wherein at a lateral wall lower end of the bottom portion, there is formed a step which is receded to the inner side along a circumferential direction.
- the step has a vertical cross sectional shape which is formed of a first curved portion which protrudes to the outer side of the container, a second curved portion which protrudes to the inner side of the container, and a third curved portion which protrudes to the outer side of the container, the first through third curved portions being formed continuous in this order from the upper side.
- the second curved portion has a curvature radius smaller than a curvature radius of the first curved portion.
- the curvature radii respectively of the first curved portion, the second curved portion and the third curved portion are all smaller than or equal to 5 mm.
- the step has a height smaller than or equal to 4 mm.
- a diameter decrease ratio of a maximum outer diameter of a bottom face of the bottom portion relative to a maximum outer diameter of the lateral wall of the bottom portion ranges from 60% to 90%.
- a bottom wall of the bottle portion has a receded portion which is receded to the inner side of the container.
- this step functions like a spring, thus improving the buckling resistance of the container. Therefore, as there is no need to provide a constricted portion or a plurality of annular grooves conventionally provided, the aesthetic feature of the container is not impaired and also the buckling deformation will occur less unlikely.
- a term “vertical direction” means a direction of a center axis X-X of a plastic bottle 1 shown in Fig. 1 (to be referred to simply as “bottle 1" hereinafter).
- a term: upper side refers to the upper end side in the drawings and a term: lower side refers to the lower end side of the drawings.
- lateral direction or “horizontal direction” means the direction perpendicular to the center axis X-X direction.
- a term "circumferential direction” means a direction along the contour of the horizontal cross sectional shape.
- radial direction means the radial direction of a circle when the the center axis X-X is taken as the center of such circle.
- a term "height" means a length along the center axis X-X direction.
- a term "depth” means a length along the radial direction.
- horizontal cross sectional shape means a cross sectional shape of the bottle 1 in a plane (horizontal cross section) perpendicular to the center axis X-X.
- vertical sectional shape means a cross sectional shape of the bottle 1 in a plane (vertical cross section) along the center axis X-X.
- the bottle 1 relating to the instant embodiment includes, from the upper side thereof, a spout portion 2 to/from which a cap can be attached/detached, a shoulder portion 3 continuous with the spout portion 2, a body portion 4 continuous with the shoulder portion 3, and a bottom portion 11 continuous with the body portion 4 and located at the lowermost portion.
- the bottle 1 relating to the instant embodiment is a cylindrical container having an approximately circular horizontal cross section.
- the bottle 1 can be made of thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, etc. as its principal material, via a conventional molding method such as the biaxial stretching blow molding technique.
- the content (liquid) to be charged in the bottle 1 is not particularly limited.
- drinks such as drinking water, tea, juice, coffee, cocoa, soft drink, alcoholic drink, milk-based drink, soup, liquid seasoning such as sauce, soy sauce, etc. can be cited.
- the content volume of the bottle 1 is also not particularly limited. Depending on the kind of content to be charged therein, it can be appropriately set from a relatively small volume in the order of a few hundreds of milliliters, to a relatively large volume in the order to a few liters.
- the spout portion 2 is a part which is formed of a cylinder having an opened upper end and serves as an inlet for the content.
- male threads are formed in the outer circumferential face of the spout portion 2. So that, an unillustrated cap may be adapted to be detachably fixedly threaded thereto, thus allowing repeated sealing and opening.
- the shoulder portion 3 is a part which is provided with an approximately conical shape whose diameter progressively increases from its upper end to the lower side thereof.
- the body portion 4 continuously decreases in its diameter from its upper end to the lower side and then continuously increases in its diameter from a position approximately at the vertical half of the body portion 4 to be continuous with a bottom portion 11.
- the vertical cross sectional shape of the body portion 4 in the instant embodiment is constituted of continuation of two arcs having different curvature radii from each other.
- the curvature radius of the arc of the approximately upper half portion of the body portion 4 is set smaller than the curvature radius of the arc of the approximately lower half portion of the body portion 4.
- the curvature radius of the arc of the approximately upper half portion of the body portion 4 can be e.g. 600 mm (600R) and the curvature radius of the arc of the approximately lower half portion of the body portion 4 can be 1052 mm (1052R), for instance.
- the body portion 4 there are provided, in the form of recesses, a plurality of depressurization absorbing portions 5 by a predetermined spacing in the circumferential direction.
- the depressurization absorbing portions 5 in the instant embodiment are provided in the form of recesses distributed in both the upper half portion and the lower half portion of the body portion 4.
- the tapered regions 6 are provided at the upper half portion of the body portion 4.
- the depressurization absorbing portion 5 is comprised of a tapered region 6, a constant region 7 having a constant width having a lateral width equal to the maximum lateral width of the tapered region 6 and an enlarged region 8 having a width which progressively increases from the constant region 7, with the tapered region 6, the constant region 7 and the enlarged region 8 being continuous with each other from the upper side in this order.
- a groove 9 having a V-shaped cross section, and this groove 9, at the upper end of the depressurization absorbing portion 5, is continuous with the lateral face of the body portion 4.
- the above-described depressurization absorbing portion 5 may be vertically inverted.
- the tapered region 6, the constant region 7 and the enlarged region 8 will be formed continuous with each other from the lower side in this order; and the groove 9, at the lower end of the depressurization absorbing portion 5, will be formed continuous with the lateral face of the body portion 4.
- the tapered region 6 will be provided at the lower half portion of the body portion 4.
- a receded portion 10 which is receded to the inner side of the container.
- receded portion 10 having a rhombus square pyramid-like shape is formed over and across a part of the constant region 7 and a part of the enlarged region 8.
- the shape and the disposing position of the receded portion 10 are not limited to the above.
- a protruding portion which protrudes to the outer side of the container may be formed.
- protruding portion having a rhombus square pyramid-like shape may be formed over and across a part of the constant region 7 and a part of the enlarged region 8.
- shape and the disposing position of such protruding portion are not limited to the above.
- a ratio of an area summing up the respective surface areas of the tapered region 6, the constant region 7 and the enlarged region 8 relative to the total surface area of the bottle 1 can be set to range from 30% to 45% approximately.
- the vertical cross sectional shape of a connecting portion C between the shoulder portion 3 and the body portion 4 is formed like an arc which protrudes (convex) to the outer side of the container.
- This connecting portion C has a curvature radius ranging from 1.5 to 5 mm (1.5R to 5R), more preferably from 1.5 to 3.5 mm (1.5R to 3.5R).
- the shape extending from the lower end portion of the shoulder portion 3 through the connecting portion C to the upper end portion of the body portion 4 is curved to protrude toward the lateral outer side of the container.
- a circumferential groove 20 which extends along and over the entire circumference.
- This circumferential groove 20 acts as a reinforcing rib for enhancing reinforcement against a shock or a load applied to the lateral face of the bottle 1.
- an edge arc 21 protruding to the outer side of the container, a bottom arc 23 protruding to the inner side of the container and an edge arc 22 protruding to the outer side of the container are formed continuous with each other from the upper side in this order.
- the curvature radii of the edge arcs 21, 22 can be greater than the curvature radius of the bottom arc 23.
- the curvature radii of the edge arcs 21, 22 can be 2 mm (2R) and the curvature radius of the bottom arc 23 can be 1.5 mm (1.5R).
- the depth of the circumferential groove 20 can range from 1 to 1.5 mm, for example.
- the bottom portion 11 is comprised of a lateral wall 12 and a bottom wall 13. At the lower end of the lateral wall 12, there is formed a step 14 which is receded to the inner side along the circumferential direction.
- the step 14 has a vertical cross sectional shape which is formed of a first curved portion 15 which protrudes to the outer side of the container, a second curved portion 16 which protrudes to the inner side of the container, and a third curved portion 17 which protrudes to the outer side of the container, the first through third curved portions 15, 16, 17 being formed continuous in this order from the upper side.
- the curvature radius of the second curved portion 16 can be smaller than the curvature radius of the first curved portion 15.
- the respective curvature radii of the first curved portion 15, the second curved portion 16 and the third curved portion 17 all can be smaller than or equal to 5 mm (5R).
- the curvature radius of the first curved portion 15 can be 3 mm (3R)
- the curvature radius of the second curved portion 16 can be 1.5 mm (1.5R)
- the curvature radius of the third curved portion 17 can be 2 mm (2R).
- the height of the step 14 can be smaller than or equal to 4 mm.
- the vertical cross sectional shape of the step 14 is not limited to the above.
- a straight portion(s) may be provided between the first curved portion 15 and the second curved portion 16 and/or between the second curved portion 16 and the third curved portion 17, a straight portion(s) may be provided.
- the bottom wall 13 of the bottom portion 11 is comprised of a receded portion 18 which is receded to the inner side of the container and a bottom face 19 which comes into contact with a disposing surface when the bottle 1 is placed vertically thereon.
- the vertical cross sectional shape of the receded portion 18 is a round-dome shape which is receded in the form of step.
- the bottom face 19 has a ring shape as seen in a plan view and is disposed in the outer circumference of the receded portion 18.
- a diameter decrease ratio of a maximum outer diameter T2 of the bottom face 19 relative to the maximum outer diameter T1 of the lateral wall 12 of the bottom portion 11 can range from 60% to 90%.
- the shape extending from the lower end portion of the shoulder portion 3 across the connecting portion C to the upper end of the body portion 4 can be a shape which has a greater degree of protrusion to the lateral outer side of the container, as shown in Fig. 6 , for instance.
- an arc 24 protruding to the inner side of the container is formed at the upper end portion of the body portion 4 and this arc 24 is continuous with the connecting portion C.
- the curvature radius of the arc 24 is greater than the curvature radius of the connecting portion C and can range from 10 to 20 mm (10R to 20R), for instance.
- the resin made container of the present invention can be used as a container in which beverage, seasoning, etc. is charged in a sealed state.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packages (AREA)
Abstract
Description
- This invention relates to a resin made container such as a PET bottle.
- As conventional resin made containers, there is known, from
e.g. Patent Document 1, a PET bottle having a constricted portion and a plurality of annular grooves, which are provided in a body portion of the bottle. With this PET bottle, even if a certain shock or load is applied thereto from the vertical direction during e.g. conveyance, such shock or load will be absorbed by elastic deformation occurring in the constructed portion or the annular grooves, so buckling deformation will not occur easily. - Patent Document 1: Japanese Unexamined Patent Application Publication No.
2008-13180 - However, with the conventional PET bottle, with provision of the constricted portion or the plurality of annular grooves, their uneven appearance can impair the aesthetic feature. Thus, there remains room for improvement. Accordingly, an object of the invention is to improve the buckling resistance of a resin made container without impairing its aesthetic feature.
- For accomplishing the above-noted object, according to a first characterizing feature of a resin made container relating to the present invention, the resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost portion of the bottle;
wherein at a lateral wall lower end of the bottom portion, there is formed a step which is receded to the inner side along a circumferential direction. - According to a further characterizing feature of the resin made bottle of the invention, the step has a vertical cross sectional shape which is formed of a first curved portion which protrudes to the outer side of the container, a second curved portion which protrudes to the inner side of the container, and a third curved portion which protrudes to the outer side of the container, the first through third curved portions being formed continuous in this order from the upper side.
- According to a still further characterizing feature of the resin made container of the invention, the second curved portion has a curvature radius smaller than a curvature radius of the first curved portion.
- According to a still further characterizing feature of the resin made container of the invention, the curvature radii respectively of the first curved portion, the second curved portion and the third curved portion are all smaller than or equal to 5 mm.
- According to a still further characterizing feature of the resin made container of the invention, the step has a height smaller than or equal to 4 mm.
- According to a still further characterizing feature of the resin made container of the present invention, a diameter decrease ratio of a maximum outer diameter of a bottom face of the bottom portion relative to a maximum outer diameter of the lateral wall of the bottom portion ranges from 60% to 90%.
- According to a still further characterizing feature of the resin made container of the invention, a bottom wall of the bottle portion has a receded portion which is receded to the inner side of the container.
- With the inventive feature of a step receded to the inner side along a circumferential direction being formed at a lateral wall lower end of the bottom portion, this step functions like a spring, thus improving the buckling resistance of the container. Therefore, as there is no need to provide a constricted portion or a plurality of annular grooves conventionally provided, the aesthetic feature of the container is not impaired and also the buckling deformation will occur less unlikely.
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Fig. 1 is a perspective view of a resin made container, -
Fig. 2 is a side view of the resin made container, -
Fig. 3 is a vertical sectional view of the resin made container taken along a line III-III inFig. 2 , -
Fig. 4 is an enlarged view of a depressurization absorbing portion, -
Fig. 5 is a vertical sectional view of a bottom portion of the resin made container, and -
Fig. 6 is an enlarged view showing vicinity of a connecting portion between a shoulder portion and a body portion of a resin made container according to a further embodiment. - Next, as a preferred embodiment of a resin made container relating to the present invention, there will be explained a
plastic bottle 1 to be charged with liquid such as beverage, with reference to the accompanying drawings. - Firstly, various kinds of terms to be used in this detailed description will be defined as follows.
- As used in this detailed description, a term "vertical direction" means a direction of a center axis X-X of a
plastic bottle 1 shown inFig. 1 (to be referred to simply as "bottle 1" hereinafter). In particular, inFigs. 1-3 , a term: upper side, refers to the upper end side in the drawings and a term: lower side refers to the lower end side of the drawings. - A term "lateral direction" or "horizontal direction" means the direction perpendicular to the center axis X-X direction.
- A term "circumferential direction" means a direction along the contour of the horizontal cross sectional shape.
- A term "radial direction" means the radial direction of a circle when the the center axis X-X is taken as the center of such circle.
- A term "height" means a length along the center axis X-X direction.
- A term "depth" means a length along the radial direction.
- A term "horizontal cross sectional shape" means a cross sectional shape of the
bottle 1 in a plane (horizontal cross section) perpendicular to the center axis X-X. - A term "vertical sectional shape" means a cross sectional shape of the
bottle 1 in a plane (vertical cross section) along the center axis X-X. - As shown in
Figs. 1 through 3 , thebottle 1 relating to the instant embodiment includes, from the upper side thereof, aspout portion 2 to/from which a cap can be attached/detached, ashoulder portion 3 continuous with thespout portion 2, abody portion 4 continuous with theshoulder portion 3, and abottom portion 11 continuous with thebody portion 4 and located at the lowermost portion. Further, thebottle 1 relating to the instant embodiment is a cylindrical container having an approximately circular horizontal cross section. - The
bottle 1 can be made of thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, etc. as its principal material, via a conventional molding method such as the biaxial stretching blow molding technique. - The content (liquid) to be charged in the
bottle 1 is not particularly limited. As examples thereof, drinks such as drinking water, tea, juice, coffee, cocoa, soft drink, alcoholic drink, milk-based drink, soup, liquid seasoning such as sauce, soy sauce, etc. can be cited. Further, the content volume of thebottle 1 is also not particularly limited. Depending on the kind of content to be charged therein, it can be appropriately set from a relatively small volume in the order of a few hundreds of milliliters, to a relatively large volume in the order to a few liters. Incidentally, when thebottle 1 is used as a beverage bottle, it is desired that its content volume ranges from 500 to 550 mL. - The
spout portion 2 is a part which is formed of a cylinder having an opened upper end and serves as an inlet for the content. In the outer circumferential face of thespout portion 2, male threads are formed. So that, an unillustrated cap may be adapted to be detachably fixedly threaded thereto, thus allowing repeated sealing and opening. - The
shoulder portion 3 is a part which is provided with an approximately conical shape whose diameter progressively increases from its upper end to the lower side thereof. Advantageously, the vertical cross sectional shape of theshoulder portion 3 may be a gentle arc which is formed to protrude to the outer side of the container (e.g. a curvature radius = 250 mm (250R)). - The
body portion 4 continuously decreases in its diameter from its upper end to the lower side and then continuously increases in its diameter from a position approximately at the vertical half of thebody portion 4 to be continuous with abottom portion 11. Incidentally, the vertical cross sectional shape of thebody portion 4 in the instant embodiment is constituted of continuation of two arcs having different curvature radii from each other. In the instant embodiment, the curvature radius of the arc of the approximately upper half portion of thebody portion 4 is set smaller than the curvature radius of the arc of the approximately lower half portion of thebody portion 4. The curvature radius of the arc of the approximately upper half portion of thebody portion 4 can be e.g. 600 mm (600R) and the curvature radius of the arc of the approximately lower half portion of thebody portion 4 can be 1052 mm (1052R), for instance. - In the
body portion 4, there are provided, in the form of recesses, a plurality ofdepressurization absorbing portions 5 by a predetermined spacing in the circumferential direction. Incidentally, thedepressurization absorbing portions 5 in the instant embodiment are provided in the form of recesses distributed in both the upper half portion and the lower half portion of thebody portion 4. On the upper side of eachdepressurization absorbing portion 5, there is formed atapered region 6 whose diameter progressively decreases and whose depth progressively decreases toward the upper side. In the instant embodiment, thetapered regions 6 are provided at the upper half portion of thebody portion 4. - As shown in
Fig. 4 , thedepressurization absorbing portion 5 is comprised of a taperedregion 6, aconstant region 7 having a constant width having a lateral width equal to the maximum lateral width of the taperedregion 6 and anenlarged region 8 having a width which progressively increases from theconstant region 7, with the taperedregion 6, theconstant region 7 and theenlarged region 8 being continuous with each other from the upper side in this order. Along the contour of thedepressurization absorbing portion 5, there is formed agroove 9 having a V-shaped cross section, and thisgroove 9, at the upper end of thedepressurization absorbing portion 5, is continuous with the lateral face of thebody portion 4. - Incidentally, though not shown, the above-described
depressurization absorbing portion 5 may be vertically inverted. In such case, the taperedregion 6, theconstant region 7 and theenlarged region 8 will be formed continuous with each other from the lower side in this order; and thegroove 9, at the lower end of thedepressurization absorbing portion 5, will be formed continuous with the lateral face of thebody portion 4. Further, the taperedregion 6 will be provided at the lower half portion of thebody portion 4. - In the
depressurization absorbing portion 5, there is formed a recededportion 10 which is receded to the inner side of the container. In the instant embodiment, such recededportion 10 having a rhombus square pyramid-like shape is formed over and across a part of theconstant region 7 and a part of theenlarged region 8. However, the shape and the disposing position of the recededportion 10 are not limited to the above. Incidentally, in thedepressurization absorbing portion 5, instead of the recededportion 10 above, a protruding portion which protrudes to the outer side of the container may be formed. In this case, similarly to the recededportion 10, such protruding portion having a rhombus square pyramid-like shape may be formed over and across a part of theconstant region 7 and a part of theenlarged region 8. However, the shape and the disposing position of such protruding portion are not limited to the above. - Incidentally, advantageously, a ratio of an area summing up the respective surface areas of the tapered
region 6, theconstant region 7 and theenlarged region 8 relative to the total surface area of thebottle 1 can be set to range from 30% to 45% approximately. - As shown in
Fig. 3 , the vertical cross sectional shape of a connecting portion C between theshoulder portion 3 and thebody portion 4 is formed like an arc which protrudes (convex) to the outer side of the container. This connecting portion C has a curvature radius ranging from 1.5 to 5 mm (1.5R to 5R), more preferably from 1.5 to 3.5 mm (1.5R to 3.5R). The shape extending from the lower end portion of theshoulder portion 3 through the connecting portion C to the upper end portion of thebody portion 4 is curved to protrude toward the lateral outer side of the container. - As shown in
Figs. 1-3 , at the connecting portion between thebody portion 4 and thebottom portion 11, there is formed acircumferential groove 20 which extends along and over the entire circumference. Thiscircumferential groove 20 acts as a reinforcing rib for enhancing reinforcement against a shock or a load applied to the lateral face of thebottle 1. - As shown in
Fig. 5 , in the vertical cross sectional shape of thecircumferential groove 20, anedge arc 21 protruding to the outer side of the container, abottom arc 23 protruding to the inner side of the container and anedge arc 22 protruding to the outer side of the container are formed continuous with each other from the upper side in this order. Advantageously, the curvature radii of the edge arcs 21, 22 can be greater than the curvature radius of thebottom arc 23. For instance, the curvature radii of the edge arcs 21, 22 can be 2 mm (2R) and the curvature radius of thebottom arc 23 can be 1.5 mm (1.5R). Further, advantageously, the depth of thecircumferential groove 20 can range from 1 to 1.5 mm, for example. - As shown in
Fig. 5 , thebottom portion 11 is comprised of alateral wall 12 and abottom wall 13. At the lower end of thelateral wall 12, there is formed astep 14 which is receded to the inner side along the circumferential direction. - The
step 14 has a vertical cross sectional shape which is formed of a firstcurved portion 15 which protrudes to the outer side of the container, a secondcurved portion 16 which protrudes to the inner side of the container, and a thirdcurved portion 17 which protrudes to the outer side of the container, the first through thirdcurved portions curved portion 16 can be smaller than the curvature radius of the firstcurved portion 15. Also advantageously, the respective curvature radii of the firstcurved portion 15, the secondcurved portion 16 and the thirdcurved portion 17 all can be smaller than or equal to 5 mm (5R). For instance, advantageously, the curvature radius of the firstcurved portion 15 can be 3 mm (3R), the curvature radius of the secondcurved portion 16 can be 1.5 mm (1.5R), and the curvature radius of the thirdcurved portion 17 can be 2 mm (2R). Further, advantageously, the height of thestep 14 can be smaller than or equal to 4 mm. - Moreover, the vertical cross sectional shape of the
step 14 is not limited to the above. Alternatively, between the firstcurved portion 15 and the secondcurved portion 16 and/or between the secondcurved portion 16 and the thirdcurved portion 17, a straight portion(s) may be provided. - The
bottom wall 13 of thebottom portion 11 is comprised of a recededportion 18 which is receded to the inner side of the container and abottom face 19 which comes into contact with a disposing surface when thebottle 1 is placed vertically thereon. The vertical cross sectional shape of the recededportion 18 is a round-dome shape which is receded in the form of step. Thebottom face 19 has a ring shape as seen in a plan view and is disposed in the outer circumference of the recededportion 18. - Advantageously, a diameter decrease ratio of a maximum outer diameter T2 of the
bottom face 19 relative to the maximum outer diameter T1 of thelateral wall 12 of thebottom portion 11 can range from 60% to 90%. - The shape extending from the lower end portion of the
shoulder portion 3 across the connecting portion C to the upper end of thebody portion 4 can be a shape which has a greater degree of protrusion to the lateral outer side of the container, as shown inFig. 6 , for instance. In this embodiment, anarc 24 protruding to the inner side of the container is formed at the upper end portion of thebody portion 4 and thisarc 24 is continuous with the connecting portion C. The curvature radius of thearc 24 is greater than the curvature radius of the connecting portion C and can range from 10 to 20 mm (10R to 20R), for instance. - The resin made container of the present invention can be used as a container in which beverage, seasoning, etc. is charged in a sealed state.
-
- 1: bottle
- 2: spout portion
- 3: shoulder portion
- 4: body portion
- 5: depressurization absorbing portion
- 6: tapered region
- 7: constant region
- 8: enlarged region
- 9: groove having V-shaped cross section
- 10: receded portion having rhombus square pyramid-like shape
- 11: bottom portion
- 12: lateral wall
- 13: bottom wall
- 14: step
- 15: first curved portion
- 16: second curved portion
- 17: third curved portion
- 18: receded portion
- 19: bottom face
- 20: circumferential groove
- 21, 22: edge arcs
- 23: bottom arc
- 24: arc relating to further embodiment
- T1: maximum outer diameter of lateral wall of bottom portion
- T2: maximum outer diameter of bottom face
- C: connecting portion between shoulder portion and body portion
Claims (7)
- A resin made container including a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost portion of the bottle;
wherein at a lateral wall lower end of the bottom portion, there is formed a step which is receded to the inner side along a circumferential direction. - The resin made container of claim 1, wherein the step has a vertical cross sectional shape which is formed of a first curved portion which protrudes to the outer side of the container, a second curved portion which protrudes to the inner side of the container, and a third curved portion which protrudes to the outer side of the container, the first through third curved portions being formed continuous in this order from the upper side.
- The resin made container of claim 2, wherein the second curved portion has a curvature radius smaller than a curvature radius of the first curved portion.
- The resin made container of claim 2 or 3, wherein the curvature radii respectively of the first curved portion, the second curved portion and the third curved portion are all smaller than or equal to 5 mm.
- The resin made container of any one of claims 1-4, wherein the step has a height smaller than or equal to 4 mm.
- The resin made container of any one of claims 1-5, wherein a diameter decrease ratio of a maximum outer diameter of a bottom face of the bottom portion relative to a maximum outer diameter of the lateral wall of the bottom portion ranges from 60% to 90%.
- The resin made container of claim 6, wherein a bottom wall of the bottle portion has a receded portion which is receded to the inner side of the container.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016253511A JP2018104047A (en) | 2016-12-27 | 2016-12-27 | Resin container |
PCT/JP2017/046374 WO2018123941A1 (en) | 2016-12-27 | 2017-12-25 | Resin container |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3564141A1 true EP3564141A1 (en) | 2019-11-06 |
EP3564141A4 EP3564141A4 (en) | 2020-09-02 |
Family
ID=62707654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17887639.7A Withdrawn EP3564141A4 (en) | 2016-12-27 | 2017-12-25 | Resin container |
Country Status (7)
Country | Link |
---|---|
US (1) | US20190337661A1 (en) |
EP (1) | EP3564141A4 (en) |
JP (1) | JP2018104047A (en) |
CN (1) | CN110114275A (en) |
PH (1) | PH12019501402A1 (en) |
TW (1) | TW201829256A (en) |
WO (1) | WO2018123941A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230092594A1 (en) * | 2021-09-22 | 2023-03-23 | Trek Bicycle Corporation | Insulated bottle |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179488A (en) * | 1976-03-31 | 1979-12-18 | Yoshino Kogyosho Co., Ltd. | Method of making a frosted bottle of saturated polyester |
JPS5648946A (en) * | 1979-09-26 | 1981-05-02 | Kishimoto Akira | Pressure resisting plastic vessel* shock resistance thereof is improved |
CA2038817C (en) * | 1990-04-06 | 1997-04-22 | Gary Arthur Baldwin | Beverage container with improved drop resistance |
JP2003191928A (en) * | 2001-12-28 | 2003-07-09 | Yoshino Kogyosho Co Ltd | Bottle-type container made of synthetic resin |
JP4080212B2 (en) * | 2002-01-31 | 2008-04-23 | 株式会社吉野工業所 | Thin-walled bottle made of synthetic resin |
JP4846468B2 (en) | 2006-06-30 | 2011-12-28 | 株式会社吉野工業所 | Plastic bottle |
KR101684711B1 (en) * | 2008-11-27 | 2016-12-08 | 가부시키가이샤 요시노 고교쇼 | Synthetic Resin Bottle |
JP5472792B2 (en) * | 2009-04-30 | 2014-04-16 | 株式会社吉野工業所 | Synthetic resin housing |
CA2766426A1 (en) * | 2009-05-05 | 2010-11-11 | Amcor Rigid Plastics Usa, Inc. | Panelless hot-fill plastic bottle |
-
2016
- 2016-12-27 JP JP2016253511A patent/JP2018104047A/en active Pending
-
2017
- 2017-12-25 WO PCT/JP2017/046374 patent/WO2018123941A1/en unknown
- 2017-12-25 CN CN201780080732.8A patent/CN110114275A/en active Pending
- 2017-12-25 US US16/473,834 patent/US20190337661A1/en not_active Abandoned
- 2017-12-25 EP EP17887639.7A patent/EP3564141A4/en not_active Withdrawn
- 2017-12-26 TW TW106145667A patent/TW201829256A/en unknown
-
2019
- 2019-06-19 PH PH12019501402A patent/PH12019501402A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PH12019501402A1 (en) | 2019-11-11 |
CN110114275A (en) | 2019-08-09 |
US20190337661A1 (en) | 2019-11-07 |
WO2018123941A1 (en) | 2018-07-05 |
TW201829256A (en) | 2018-08-16 |
JP2018104047A (en) | 2018-07-05 |
EP3564141A4 (en) | 2020-09-02 |
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