WO2022163570A1 - 合成樹脂キャップ - Google Patents
合成樹脂キャップ Download PDFInfo
- Publication number
- WO2022163570A1 WO2022163570A1 PCT/JP2022/002403 JP2022002403W WO2022163570A1 WO 2022163570 A1 WO2022163570 A1 WO 2022163570A1 JP 2022002403 W JP2022002403 W JP 2022002403W WO 2022163570 A1 WO2022163570 A1 WO 2022163570A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cap
- synthetic resin
- container
- curved
- cap body
- Prior art date
Links
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 90
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 90
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims 1
- 230000035622 drinking Effects 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 14
- 230000006870 function Effects 0.000 description 12
- 230000007704 transition Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000008267 milk Substances 0.000 description 5
- 210000004080 milk Anatomy 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 235000020124 milk-based beverage Nutrition 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 235000014214 soft drink Nutrition 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000012056 semi-solid material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- 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
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/16—Devices preventing loss of removable closure 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
- B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges
-
- 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/46—Snap-on caps or cap-like covers
- B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
- B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/10—Details of hinged closures
- B65D2251/1008—Means for locking the closure in open position
-
- 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
- B65D2401/00—Tamper-indicating means
- B65D2401/15—Tearable part of the closure
- B65D2401/30—Tamper-ring remaining connected to closure after initial removal
Definitions
- the present invention relates to a synthetic resin cap, and more particularly to a synthetic resin cap that is fitted into a container having a mouth, for example, and that maintains connection with the mouth of the container even when the cap is opened.
- containers such as plastic bottles and beer bottles are known as containers for storing beverages.
- a container is known in various forms depending on its use.
- the opening of the container hereinafter also referred to as "container opening" is capped with a cap. It is also known to attach vials to the .
- Patent Document 1 and Patent Document 2 there is also known a cap in which a ring member or the like remaining at the bottom of the cap when opened is connected to the cap body. A structure is disclosed in which the connection between the mouth portion of the container and the cap is maintained without the cap being detached from the container.
- the cap body rotates around the ring member remaining at the bottom of the container opening, so that the cap does not separate from the container opening when the cap is opened and falls. and loss can be suppressed.
- the conventional structures including Patent Document 1 and Patent Document 2 still have problems as described below.
- a synthetic resin cap includes: (1) a tamper-evident band fitted to the outer peripheral surface of the mouth of a container, a skirt wall and a top plate, and a weakened portion and a strap a cap body connected to the tamper-evident band via a portion and provided with a fixing rib on the skirt wall protruding radially outward from the skirt wall, the fixing rib widening downward.
- the synthetic resin cap in one aspect of the present invention has (2) a tamper-evident band fitted to the outer peripheral surface of the container mouth, a skirt wall and a top plate, and a weakened portion and a cap body connected to the tamper-evident band via a strap portion and provided with a fixing rib on the skirt wall protruding radially outward beyond the skirt wall, wherein the fixing rib extends radially outward from the skirt wall.
- a shoulder curved downward at an outer end of the intermediate step; and a curved portion continuing from the shoulder and gradually decreasing in diameter downward.
- the protruding portion is configured to: It is characterized by further comprising a first inclined portion arranged above the intermediate stepped portion and widening downward from the top plate.
- the curved portion is arranged such that the opening force necessary for reversing the cap body via the strap portion when the cap is opened gradually increases. It is preferable that the cap main body has a curved surface that protrudes upward when the mouth of the container is sealed.
- the cap main body is in a state in which the strap portion is turned to the proximal end by more than 180° from the unopened state. , it is preferable that the posture at the time of opening is maintained.
- the protruding portion has an installation height from the lower end of the fixing rib so that the cap body can turn over 180°. preferably set.
- the first inclined portion slides on the side surface of the laterally extended portion.
- the upper edge of the top plate is guided so as to slip into the upper surface of the lateral extension.
- the projecting portion includes an intermediate stepped portion extending radially outward from the lower end of the first inclined portion, and an outer end portion of the intermediate stepped portion. It is composed of a shoulder portion curved downward and an outer side surface portion continuously protruding radially outward from the shoulder portion. It is preferable that the lower end of the surface portion is provided with a second inclined portion that tapers downward.
- the strap portion has at least two connecting straps, and the fixing rib is provided between the two connecting straps. It is preferable that they are arranged so as to intervene between them.
- the cap body preferably further comprises a brim provided on the side opposite to the fixing rib.
- the projecting portion includes an intermediate stepped portion extending radially outward and an outer end portion of the intermediate stepped portion. At least a shoulder portion curved downward, and a curved portion continuing from the shoulder portion and having a diameter gradually reduced downward, wherein the jaw provided at the mouth portion of the container bends the curved portion. It is preferable that the fixed rib contacts the side surface of the container opening to produce a sound after being overcome.
- a synthetic resin cap in one aspect of the present invention has (11) a tamper-evident band fitted to the outer peripheral surface of the container mouth, a skirt wall and a top plate, and a weakened portion and a cap body connected to the tamper-evident band via a strap portion and provided with a fixing rib on the skirt wall protruding radially outward beyond the skirt wall, wherein the fixing rib extends radially outward from the skirt wall.
- a shoulder curved downward at an outer end of the intermediate step; and a curved portion continuing from the shoulder and gradually decreasing in diameter downward.
- the cap body is connected to the tamper-evident band via the strap portion, it is possible to prevent the cap from falling or being lost when the cap is opened.
- the side surface of the container mouth and the lower projecting portion of the first inclined portion come into contact with each other, and the upper surface of the side extension portion below the container mouth and the top panel come into contact with each other.
- the posture of the cap main body at the time of opening is maintained, and the convenience at the time of drinking can be further improved.
- the jaw provided at the mouth of the container slides along the curved portion when the cap is opened. It is possible to prevent the drinker from unintentionally stopping opening the cap halfway through the gradual increase in the resistance of the cap running on the curved portion.
- FIG. 4 is an external perspective view of the synthetic resin cap in the first embodiment when viewed from one direction;
- FIG. 8 is an external perspective view of the synthetic resin cap in the first embodiment when viewed from another direction; It is the top view which looked at the synthetic resin cap in 1st Embodiment from the upper surface side. 4 is a cross-sectional view taken along line AA in FIG. 3;
- FIG. It is the bottom view which looked at the synthetic resin cap in 1st Embodiment from the bottom face side.
- FIG. 3 is a front view of the synthetic resin cap in the first embodiment, viewed from the collar portion side; (a) is a rear view of the synthetic resin cap in the first embodiment as seen from the fixed rib side, and (b) is a rear view showing another example of the connection form of the strap portion to the skirt wall.
- FIG. 4 is a cross-sectional view showing the structure of a fixed rib of the synthetic resin cap in the first embodiment;
- FIG. 4 is a state transition diagram illustrating a method of opening the synthetic resin cap in the first embodiment;
- FIG. 5 is a state transition diagram for explaining a method of opening a synthetic resin cap in a comparative example;
- FIG. 4B is a schematic diagram showing another example of the lateral extension in the container of the first embodiment.
- FIG. 10 is an external perspective view of the synthetic resin cap in the second embodiment viewed from one direction;
- FIG. 11 is an external perspective view of the synthetic resin cap in the second embodiment viewed from another direction;
- FIG. 11 is a top view of the synthetic resin cap in the second embodiment as seen from the top side.
- FIG. 15 is a cross-sectional view taken along line AA in FIG. 14; It is the bottom view which looked at the synthetic resin cap in 2nd Embodiment from the bottom face side.
- (a) is a rear view of the synthetic resin cap in the second embodiment as seen from the fixed rib side, and
- (b) is a rear view showing another example of the connection form of the strap portion to the skirt wall.
- FIG. 10 is an external perspective view of the synthetic resin cap in the second embodiment viewed from one direction
- FIG. 11 is an external perspective view of the synthetic resin cap in the second embodiment viewed from another direction
- FIG. 11 is a top view of the synthetic resin cap in the second embodiment as seen from the top side.
- FIG. 8 is a cross-sectional view showing the structure of a fixing rib in the synthetic resin cap in the second embodiment
- FIG. 10 is a state transition diagram for explaining a method of opening the synthetic resin cap in the second embodiment
- FIG. 5 is a state transition diagram for explaining a method of opening a synthetic resin cap in a comparative example
- FIG. 10 is a schematic diagram showing another example of the lateral extension in the container of the second embodiment
- the synthetic resin cap 100 of the first embodiment has a function of fitting into a spout of a container mouth portion 201 of a container 200 described later, and the tamper-evident band 10 and the so-called It is configured to include at least a cap body 20 as an upper lid.
- the container 200 suitable for the first embodiment for example, a bottle such as a well-known milk bottle that is fitted with a cap on the mouth of the container can be exemplified.
- the container 200 is not limited to the bottle described above, and may be a bottle having a cap screwed onto the opening of a general container for storing soft drinks, tea, or the like.
- polyester resin such as polyethylene terephthalate (PET) resin is suitable, but other various known materials such as the above-described glass bottle can be applied.
- the contents stored in the container 200 are not particularly limited, and various known liquids such as milk drinks such as milk and soft drinks such as tea can be applied.
- various known liquids such as milk drinks such as milk and soft drinks such as tea can be applied.
- well-known solid materials such as medicines and foods such as tablets, or well-known gel-like semi-solid materials may be applied.
- Such a container 200 is partially exemplified in FIGS. and a main body 203 located below the lateral extension 202 (only the upper part of the main body 203 is shown in the drawing, and the lower part is omitted).
- the ring-shaped side extension portion 202 shown in the first embodiment functions as a neck support that is provided below the container mouth portion 201 and extends radially outward beyond the container mouth portion 201. It is held by the transport mechanism during transportation of the container, and is held to prevent buckling of the container body when attaching the cap.
- the side extending portion 202 has a ring shape along the entire circumference of the container mouth portion 201, but is not limited to this shape, and may have a projection shape protruding in the radial direction.
- the side extension portion 202 of the first embodiment is not limited to the above-described ring-shaped form.
- FIG. 1 the neck support shown in FIG. 1 and the like will be used as an example of the lateral extension portion 202 (the neck support 202 will be described hereinafter).
- a known container structure including the above-described patent documents may be applied.
- the synthetic resin cap 100 of the first embodiment is preferably a stopper type cap in which an inner ring 23 described later is fitted inside the container mouth portion 201 .
- the material of the synthetic resin cap 100 it is preferable that it is relatively soft.
- polypropylene resin and olefin resin containing polyethylene resin such as low-density polyethylene, which is also called so-called loden, are preferable.
- a known synthetic resin may be used.
- the tamper-evident band 10 has a function of being fitted into the outer peripheral surface of the container mouth portion 201, as understood from FIGS.
- fitting projections 13 are provided at predetermined intervals on the inner peripheral surface of the tamper-evident band 10 .
- the state of being inserted into the outer peripheral surface of 201 is maintained.
- the above-described fitting projection 13 is not formed. good too.
- the cap body 20 has a skirt wall 21 and a top plate 22 and is configured as an upper lid.
- the skirt wall 21 is provided so as to hang down from the peripheral edge of the top plate 22 so as to cover the outer peripheral surface of the container mouth portion 201 when the container 200 is closed.
- the inner ring 23 that can be fitted into the spout of the container mouth portion 201 is formed inside the top plate 22 .
- various known shapes may be applied as long as the spout can be sealed.
- a flange portion 40 is provided near the upper end of the skirt wall 21 on the side opposite to the fixing rib 30 described later.
- the flange portion 40 of the first embodiment preferably has a width W2 that is wider than the width W1 of the fixing rib 30 in the circumferential direction.
- the width W2 of the flange portion 40 does not necessarily have to be wider than the width W1, and may be narrower than or equal to the width W1.
- the flange 40 of the first embodiment radially protrude to such an extent that the drinker can pick up the flange 40 . This prevents the drinker's fingers from unintentionally coming into contact with the mouth portion 201 of the container when the cap is opened, which is preferable from a sanitary point of view.
- the cap body 20 of the first embodiment is tamper-proof via the weakened portion 11 and the strap portion 12 at the lower edge of the skirt wall 21 described above. It is connected with the evidence band 10 .
- the strap portion 12 of the first embodiment is connected to the lower edge of the skirt wall 21 in FIG. 7A, the manner in which the strap portion 12 is connected to the skirt wall 21 is not limited to this form. That is, as illustrated in FIG. 7B, a part of the lower edge of the skirt wall 21 rises upward, and the upper end of the strap portion 12 is connected to the raised skirt wall 21. good too.
- the weakened portion 11 temporarily connects the tamper-evident band 10 and the cap body 20, and can be easily removed by the user picking up the collar portion 40 when opening the cap, for example. It is configured to have strength to the extent that it breaks. In other words, in an unopened state, the tamper-evident band 10 and the cap body 20 are connected via the weakened portion 11, and if the cap body 20 is opened even once, the weakened portion 11 is broken, which serves as proof of opening. .
- a plurality of weakened portions 11 in the first embodiment are intermittently provided around the axis of the cap body 20, the present invention is not limited to this form.
- the weakened portion 11 may be made thin, and the tamper-evident band 10 and the cap body 20 may be continuously connected along the circumferential direction.
- the strap portion 12 is disposed on the side opposite to the flange portion 40, on which a fixing rib 30, which will be described later, is provided. It is constructed with the ability to permanently connect.
- the strap portion 12 of the first embodiment is configured to include a pair of first connecting strap 12a and second connecting strap 12b so as to sandwich the fixing rib 30, as understood from these figures. .
- the cap body 20 when the user picks up the collar portion 40 when opening the container 200 , the cap body 20 is maintained connected to the tamper-evident band 10 via the strap portion 12 . As a result, the cap body 20 does not detach from the container 200 (more precisely, the tamper-evident band 10 fitted in the container mouth portion 201) even when the cap is opened, and the cap body 20 after opening is prevented from falling or being lost.
- the strap portion 12 has at least two connecting straps, and the fixing rib 30 is arranged between these two connecting straps.
- the first embodiment is not limited to the above embodiment, and for example, one or more connecting straps may be provided, or a different number of connecting straps may be provided on both sides of the fixing rib 30.
- the user picks up the collar portion 40 when opening the cap. It may be in the form of pushing up.
- the cap body 20 of the first embodiment hangs down from the skirt wall 21 and protrudes radially outward from the skirt wall 21 (for example, in the -X direction in FIG. 2).
- the fixing rib 30 is further provided.
- the fixing rib 30 is provided on the opposite side of the cap body 20 to the flange portion 40 described above. Further, as understood from FIG. 4, in the cap body 20 of the first embodiment, a portion of the skirt wall 21 is replaced with the fixing rib 30. As shown in FIG.
- the height (length in the Z direction) of the tamper-evident band 10 positioned below the collar portion 40 is greater than the height of the tamper-evident band 10 positioned below the fixing rib 30 . is set to be higher.
- the tamper-evident band 10 of the first embodiment is set so that the height in the axial direction is not uniform but varies in the circumferential direction.
- the fitting projections 13 are provided on the inner peripheral surface side along the circumferential direction except for the positions corresponding to the fixing ribs 30 and the strap portion 12.
- the fixing rib 30 of the first embodiment includes a first inclined portion 31, an intermediate step portion 32, a shoulder portion 31, and a shoulder portion 31 from the upper side of the top plate 22 to the lower side of the tamper-evident band 10 side. It includes a portion 33 , an outer side portion 34 , a lower tapered portion 35 and a bottom portion 36 .
- the first inclined portion 31 is formed on the top portion of the fixing rib and is configured to have a downwardly widening shape. As shown in FIG. 8, the first inclined portion 31 is a linear inclined surface inclined by about 20° with respect to the vertical direction. It may be an inclined surface of about 25°.
- the intermediate step portion 32 is a surface extending radially outward from the lower end of the first inclined portion 31 . More specifically, the intermediate stepped portion 32 of the first embodiment is arranged between the first inclined portion 31 and a shoulder portion 33 to be described later, and includes a surface substantially parallel to the top plate 22 . As shown in FIG. 8 and the like, the shoulder portion 33 is a portion curved downward at the outer end portion of the intermediate step portion 32 . More specifically, the shoulder portion 33 of the first embodiment is a curved corner portion that is provided below the first inclined portion 31 and continues to the outer side surface portion 34 at the outer edge of the intermediate step portion 32 .
- the fixed rib 30 of the first embodiment has the first inclined portion 31, the intermediate stepped portion 32 and the shoulder portion 33 described above. 8 (indicated as a boundary portion BP in FIG. 8).
- the installation height of the intermediate step portion 32 and the shoulder portion 33 was determined experimentally or It can be determined by simulation or the like.
- the outer side surface portion 34 is a side surface that continues from the shoulder portion 33 and protrudes radially outward from the skirt wall 21 described above.
- a lower tapered portion 35 is formed on the lower side of the outer side surface portion 34 so as to taper (reduce in diameter) downward. 2 to 5 and 8, the fixed rib 30 has the intermediate step portion 32, the shoulder portion 33, the outer side surface portion 34, and the lower tapered portion 35, respectively, so that the lower portion of the first inclined portion 31 is , a portion protruding radially outward is provided. Therefore, in the first embodiment, the region of the fixing rib 30 that is formed by the intermediate step portion 32, the shoulder portion 33, the outer side surface portion 34, and the lower tapered portion 35 is defined as a "protrusion".
- the lower tapered portion 35 functions as a second inclined portion located below the first inclined portion 31, and is intended to suppress interference with the tamper-evident band 10 when the plug is opened as described later. is established as
- the bottom surface portion 36 that constitutes the bottom surface of the fixing rib 30 and is continuous with the lower taper portion 35 is disposed so as to face the upper surface of the tamper-evident band 10 with a predetermined gap. ing.
- the synthetic resin cap 100 having the fixing ribs 30 configured by the respective parts described above, when the cap is opened, (A) the side surface of the container mouth portion 201 and the projecting portion provided below the first inclined portion 31; and (B) the upper surface 202a of the neck support 202 provided below the container opening 201 and the top plate 22 can come into contact with each other. As a result, the posture of the cap body 20 at the time of opening is maintained.
- the first embodiment exemplifies a form in which the shoulder part 33 of the projecting part contacts the side surface of the container mouth part 201 (see FIG. 9C, etc.), but the present invention is not limited to this form. .
- the outer side surface portion 34 forming the projecting portion and the side surface of the container mouth portion 201 may be in contact with each other.
- the case where the shoulder portion 33 of the projecting portion comes into contact with the side surface of the container mouth portion 201 will be taken as an example to continue the description.
- the container 200 when the drinker drinks the contents (for example, milk) from the container 200, first, the synthetic resin cap 100 that seals the spout is opened.
- the container 200 may be further provided with a known package such as a shrink wrap that covers the synthetic resin cap 100 .
- the drinker When opening the cap, the drinker first picks up the collar 40 with their fingers or the like. Then, the weakened portion 11 temporarily connecting the tamper-evident band 10 and the cap main body 20 is broken by this picking up force. When the weakened portion 11 is broken, the inner ring 23 is separated from the spout of the container 200 by turning (inverting) the collar portion 40 upward with the strap portion 12 as a base point.
- the second inclined portion (lower tapered portion 35) of the fixing rib 30 slides on the tamper-evident band 10. Then, the first inclined portion 31 of the fixed rib 30 slides on the side surface 202b of the neck support 202 of the container 200. As shown in FIG. As described above, since the fixing rib 30 is formed with the downwardly widening first inclined portion, the fixing rib 30 can slide smoothly with respect to the neck support 202 without being caught. ing.
- the cap body 20 maintains the posture at the time of opening the cap body 20 in a state in which the strap portion 12 is turned over 180° from the unopened state to the proximal end. .
- the angle from the unopened state is maintained at about 225°, but the angle is only an example, and the position and shape of the neck support 202 or the set height of the shoulder portion 33 may vary. It can be adjusted as appropriate.
- the shoulder portion 33 (protruding portion) of the fixed rib 30 in the first embodiment is formed at the lower end (bottom portion) of the fixed rib 30 so that the turning angle exceeds 180° and the cap body 20 can turn. 36) is set.
- the fixing rib 30 of the first embodiment since the fixing rib 30 of the first embodiment includes the second inclined portion (lower side taper portion 35), Even if the cap main body 20 performs a pivoting motion when the cap is opened, the fixing rib 30 itself is prevented from interfering with the tamper-evident band 10 . This prevents the turning of the cap body 20 from stopping at the beginning of the opening operation.
- the upper edge of the top plate 22 is prevented from slipping into the lower surface 202c of the neck support 202, and the tamper-evident band 10 and the strap portion 12 are prevented from slipping into the lower surface 202c. Unintentional breakage etc. of is suppressed.
- FIG. 10 shows the state transition in the opening method using the synthetic resin cap 101 that does not have the fixing rib 30 as a comparative example of the first embodiment.
- members having the same functions and configurations as those of the above-described embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
- the synthetic resin cap 101 in the comparative example does not have the fixing rib 30 of the first embodiment. 21 is difficult to slide, and a relatively strong force is required to open the cap.
- the neck support 202 since the neck support 202 hardly slides on the skirt wall 21, as shown in FIG. The upper edge of the top panel 22 slips into the lower surface 202c side of the neck support 202. - ⁇ In this case, for example, the tamper-evident band 10 and the strap portion 12 may be broken due to excessive force. Also, in this case, even if the strap portion 12 and the like are not broken, the strap portion 12 is excessively stretched, and the turning radius of the upper lid (cap body) becomes large when the cap is opened. It becomes difficult to maintain stable fixation of the top cover. If it becomes difficult to maintain the stable fixation of the upper lid, the fixation of the upper lid is unintentionally released during drinking and returns to the closing direction, for example, it interferes with the user's nose during drinking. Possibilities also arise.
- the synthetic resin cap 100 of the first embodiment when the cap is opened, the first inclined portion 31 of the fixing rib 30 slides on the side surface 202b of the neck support 202, thereby The upper lid (the upper edge of the top plate 22) is guided so as to slip into the side of 202a. Thereafter, the side surface of the container mouth portion 201 and the shoulder portion 33 (protruding portion) of the fixing rib 30 come into contact with each other, and the top surface 202a of the neck support 202 and the top plate 22 come into contact (two-point contact state).
- the upper edge of the top plate 22 is suppressed from slipping into the lower surface 202c side of the neck support 202, and it is possible to turn 180° or more. Unintended breakage of the tamper-evident band 10 and the strap portion 12 can be suppressed.
- the synthetic resin cap 100 of the first embodiment may include the above-described second inclined portion (lower side taper portion 35) in the fixing rib 30. As shown in FIG.
- the fixing ribs 30 protrude radially outward to some extent and the tamper-evident band 10 rides over the fixing ribs 30 when the plug is opened. , can be realized by providing the fixed rib 30 with the second inclined portion.
- the synthetic resin cap 100 of the first embodiment and the synthetic resin cap 101 of the comparative example are significantly different in not only the opening property (ease of opening) but also the stability (not breaking unintentionally). It is clear that In the synthetic resin cap 100 of the first embodiment, by providing the above-described characteristic items, even if the axial dimension of the synthetic resin cap 100 is reduced, a relatively small amount of resin material can be used to make a large inversion of the upper lid (for example, A turning angle exceeding 180° can be realized, and cost reduction can be further realized while exhibiting the above-described effects.
- the synthetic resin cap 110 of the second embodiment has a function of fitting to a container mouth portion 210 of a container 200 described later, and functions as a tamper-evident band 10 and a so-called upper lid. It is configured to include at least the cap body 20 .
- the container 200 includes a container opening 210, a ring-shaped side extension 213 provided below the container opening 210, A main body 220 (only the upper part of the main body 220 is shown in the drawing, and the lower part is omitted) positioned below the lateral extension part 213 is included.
- the container mouth portion 210 is configured to have a pouring portion 211 formed with a pouring port for pouring out the contents, and a diameter-reduced portion 212 into which the tamper-evident band 10 described later is fitted. .
- the diameter-reduced portion 212 shown in the second embodiment is a portion whose diameter is reduced below the ejection portion 211, as shown in FIG.
- a jaw portion 211 a whose diameter is gradually reduced downward is formed so as to be continuous with the reduced diameter portion 212 .
- the ring-shaped side extension part 213 functions as a neck support that is provided below the container mouth part 210 and extends radially outward from the container mouth part 210. For example, when the container 200 is transported, it is held by the transport mechanism. Also, it can be used as a portion that is held to prevent buckling of the container body when the cap is attached.
- the side extending portion 213 has a ring shape along the entire circumference of the container mouth portion 210, but is not limited to this shape, and may have a projection shape protruding in the radial direction.
- the laterally extending portion 213 of the second embodiment is not limited to the ring-shaped form described above. For example, as illustrated in FIG. ) may be integrated.
- the synthetic resin cap 110 of the second embodiment is preferably a stopper type cap in which an inner ring 23 (to be described later) is fitted inside the container mouth portion 210 .
- the material of the synthetic resin cap 100 it is preferable that it is relatively soft.
- polypropylene resin and olefin resin containing polyethylene resin such as low-density polyethylene, which is also called so-called loden, are preferable.
- a known synthetic resin may be used.
- the cap body 20 has a skirt wall 21 and a top plate 22 and is configured as an upper lid.
- the skirt wall 21 is provided so as to hang down from the periphery of the top plate 22 so as to cover at least a portion of the outer peripheral surface of the container mouth portion 210 when the container 200 is closed.
- the cap body 20 of the second embodiment hangs down from the skirt wall 21 and protrudes radially outward from the skirt wall 21 (for example, in the -X direction in FIG. 13).
- the fixing rib 30 is further provided.
- the fixing rib 30 is provided on the side of the cap body 20 opposite to the flange portion 40 described above. Further, as understood from FIG. 15, in the cap body 20 of the present embodiment, a portion of the skirt wall 21 is replaced with the fixing rib 30. As shown in FIG. 13, the fixing rib 30 is provided on the side of the cap body 20 opposite to the flange portion 40 described above. Further, as understood from FIG. 15, in the cap body 20 of the present embodiment, a portion of the skirt wall 21 is replaced with the fixing rib 30. As shown in FIG.
- the height (the length in the Z direction) of the tamper-evident band 10 positioned below the collar portion 40 is greater than the height of the tamper-evident band 10 positioned below the fixing rib 30 .
- the tamper-evident band 10 of the present embodiment is set so that the height in the axial direction is not uniform but varies in the circumferential direction.
- the fitting projections 13 are provided on the inner peripheral surface side along the circumferential direction except for the positions corresponding to the fixing ribs 30 and the strap portion 12 . .
- the fixing rib 30 of the present embodiment includes a first inclined portion 31, an intermediate step portion 32, It includes a shoulder portion 33 , a curved portion 37 and a lower bottom surface portion 38 .
- the first inclined portion 31 is formed on the top portion of the fixing rib and is configured to have a downwardly widening shape. As shown in FIG. 18, the first inclined portion 31 is a linear inclined surface inclined by about 20° with respect to the vertical direction. It may be an inclined surface of about 25°.
- the intermediate step portion 32 is a surface extending radially outward from the lower end of the first inclined portion 31 described above. More specifically, the intermediate stepped portion 32 of the present embodiment is arranged between the first inclined portion 31 and a shoulder portion 33 to be described later, and includes a surface substantially parallel to the top panel 22 . As shown in FIG. 18 and the like, the shoulder portion 33 is a portion curved downward at the outer end portion of the intermediate step portion 32 . More specifically, the shoulder portion 33 of this embodiment is a curved corner portion that is provided below the first inclined portion 31 and continues to the curved portion 37 at the outer edge of the intermediate step portion 32 .
- the installation height of the intermediate step portion 32 and the shoulder portion 33 (the height from the lower end of the fixing rib 30) is set so that the swivel angle of the cap body 20 is maintained at more than 180° when the cap is opened.
- the material of the cap 100 can also be determined by experiments or simulations.
- the curved portion 37 is a portion whose diameter is gradually reduced downward continuously from the shoulder portion 33 described above.
- the curved portion 37 is a side surface that protrudes radially outward from the skirt wall 21 and is provided at the container mouth portion 210 (extraction portion 211) when the cap is opened.
- the jaw 211a is slidable along its curved curve.
- the curved portion 37 of the present embodiment is designed to bend the cap body 20 so that the opening force required to reverse the cap body 20 via the strap portion 12 when the cap is opened gradually increases.
- the curved portion 37 of the present embodiment is configured with a curved surface that is convex upward when the container mouth portion 210 is sealed.
- the curved surface of the curved portion 37 may have a curvature that is almost straight.
- the curved portion 37 is positioned downward (in FIG. ) may be interposed between the shoulder portion 33 and the lower bottom surface portion 38 .
- the lower bottom surface portion 38 is arranged below the curved portion 37 as shown in FIG. 18 and the like.
- the lower bottom surface portion 38 includes a bottom surface substantially parallel to the top plate 22 described above. Further, the lower bottom surface portion 38 of the present embodiment is arranged to face the upper surface of the tamper-evident band 10 so as to have a predetermined gap from the tamper-evident band 10 .
- the fixing rib 30 has the intermediate step portion 32, the shoulder portion 33, and the curved portion 37, respectively, so that the fixing rib 30 extends radially outward below the first inclined portion 31. It will be equipped with a part protruding toward. Therefore, in the second embodiment, a region of the fixed rib 30 that is formed by the intermediate step portion 32, the shoulder portion 33 and the curved portion 37 is defined as a "protrusion”.
- the curved portion 37 and the lower bottom surface portion 38 are continuous, but the present invention is not limited to this configuration. It may be further interposed between the portion 37 and the lower bottom surface portion 38 .
- a third inclined portion for example, it is possible to further suppress interference with the tamper-evident band 10 at the time of opening.
- the synthetic resin cap 110 having the fixing ribs 30 configured by the respective parts described above, when the cap is opened, (A) the side surface of the container mouth portion 210 and the projecting portion ( (B) The upper surface 213a of the neck support 213 provided below the container mouth portion 210 and the top plate 22 can come into contact with each other. As a result, the posture of the cap body 20 at the time of opening is maintained.
- this embodiment exemplifies a form in which the shoulder part 33 of the protruding part contacts the side surface of the container mouth part 210 (see FIG. 19(c), etc.), but is not limited to this form.
- the curved portion 37 forming the projecting portion and the side surface of the container mouth portion 210 may be in contact with each other.
- the case where the shoulder portion 33 of the projecting portion comes into contact with the side surface of the container mouth portion 210 will be taken as an example to continue the description.
- the container 200 when the drinker drinks the contents (such as milk) from the container 200, first, the synthetic resin cap 110 that seals the spout is opened.
- the container 200 may be further provided with a known wrapping such as a shrink wrap that covers the synthetic resin cap 110 .
- the drinker When opening the cap, the drinker first picks up the collar 40 with their fingers or the like. Then, the weakened portion 11 temporarily connecting the tamper-evident band 10 and the cap main body 20 is broken by this picking up force. When the weakened portion 11 is broken, the inner ring 23 is separated from the spout of the container 200 by turning (reversing) the collar portion 40 upward with the strap portion 12 as a base point.
- the jaw 211a provided in the pouring portion 211 of the container opening 210 slides along the curved portion 37. do.
- the curved surface of the curved portion 37 is configured to protrude upward when the container mouth portion 210 is sealed. Therefore, the opening force felt by the drinker at this time gradually increases with the above-described turning motion.
- the first inclined portion 31 of the fixed rib 30 slides on the side surface 213 b of the neck support 213 of the container 200 .
- the fixed rib 30 is formed with the downwardly widening first inclined portion 31, the fixed rib 30 can slide smoothly on the neck support 213 without being caught. It's becoming
- the cap body 20 preferably maintains the posture at the time of opening in a state where the strap portion 12 is turned over 180° from the unopened state to the proximal end. .
- the angle from the unopened state is maintained at about 225°, but the angle is only an example, and may vary depending on the position and shape of the neck support 213 or the set height of the shoulder 33. It can be adjusted as appropriate.
- the shoulder portion 33 (protruding portion) of the fixed rib 30 in this embodiment is positioned at the lower end (bottom portion 36) of the fixed rib 30 so that the turning angle exceeds 180° and the cap body 20 can turn. ) is set.
- the first inclined portion 31 of the fixing rib 30 is Another feature is that the upper edge portion 22e of the top plate 22 is guided so as to slip into the upper surface 213a side of the neck support 213 by sliding on the side surface 213b of the neck support 213.
- the upper edge 22e of the top panel 22 is prevented from slipping into the lower surface 213c of the neck support 213, and the tamper-evident band 10 and the strap 12 are prevented from slipping into the lower surface 213c. Unintentional breakage etc. of is suppressed.
- the fixing rib 30 is configured to come into contact with the side surface of the container mouth portion 210 by action (action of elastic deformation) to produce sound.
- action action of elastic deformation
- the drinker can perceive completion of the unplugging action not only by the above-described gradual increase in the unplugging force but also by hearing (effect of contact sound).
- FIG. 20 shows the state transition in the opening method using the synthetic resin cap 111 that does not have the fixing rib 30 as a comparative example of this embodiment.
- members having the same functions and configurations as those of the above-described embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
- the synthetic resin cap 111 in the comparative example does not have the fixing ribs 30 of the present embodiment, so that when the cap is opened, the neck support 213 does not close to the skirt wall 21 as shown in FIG. 20(b). It is difficult to slide the cap, and a relatively strong force is required to open it.
- the neck support 213 since the neck support 213 hardly slides on the skirt wall 21, the upper surface 213a of the neck support 213 and the top panel 22 do not come into contact with each other as shown in FIG. 20(c). The upper edge of the top panel 22 slips into the lower surface 213c side of the neck support 213. - ⁇ In this case, for example, the tamper-evident band 10 and the strap portion 12 may be broken due to excessive force.
- the synthetic resin cap 110 of the second embodiment when the cap is opened, the first inclined portion 31 of the fixing rib 30 slides on the side surface 213b of the neck support 213, thereby The upper lid (the upper edge of the top plate 22) is guided so as to slip into the side of 213a. After that, the side surface of the container mouth portion 210 and the shoulder portion 33 (protruding portion) of the fixed rib 30 come into contact with each other, and the upper surface 213a of the neck support 213 and the top plate 22 come into contact (two-point contact state).
- the upper edge of the top plate 22 is prevented from slipping into the lower surface 213c of the neck support 213, and it is possible to turn 180° or more. Unintended breakage of the tamper-evident band 10 and the strap portion 12 can be suppressed.
- the synthetic resin cap 110 of the second embodiment a modified example in which the above-described second inclined portion is interposed between the shoulder portion 33 and the lower bottom surface portion 38 as another form of the curved portion 37 in the fixed rib 30 is shown.
- the second pattern is formed between the curved portion 37 of the first pattern and the lower bottom portion 38 .
- the second inclined portion as the curved portion 37 may be further interposed.
- the fixing ribs 30 protrude radially outward to some extent and the tamper-evident band 10 climbs over the fixing ribs 30 when the plug is opened. This operation can be realized more easily by providing the fixed ribs 30 with the curved portions 37 of the first pattern and the second pattern.
- the synthetic resin cap 110 of the second embodiment and the synthetic resin cap 111 of the comparative example are significantly different in not only the opening property (ease of opening) but also the stability (not breaking unintentionally). It is clear that In addition, the synthetic resin cap 110 of the second embodiment has the features described above. Therefore, even if the axial dimension of the synthetic resin cap 110 is reduced, a relatively small amount of resin material can be used to make a large inversion of the upper lid (for example, A turning angle exceeding 180° can be realized, and cost reduction can be further realized while exhibiting the above-described effects.
- the inner ring 23 is provided inside (bottom surface) of the top plate 22 of the synthetic resin cap 110, but instead of or in addition to this, a known packing or the like may be disposed on the bottom surface side of the top plate 22. .
- the position of the flange 40 in the axial direction (height direction, Z direction) in each embodiment may be appropriately changed according to the design value of the opening force by the drinker. That is, the flange portion 40 may be provided at a position higher than the intermediate stepped portion 32 of the fixed rib 30 or may be provided at a position lower than the intermediate stepped portion 32 in the axial direction. .
- the present invention is suitable for realizing a cap that further improves the convenience of drinking while suppressing the cap from falling off or being lost when the cap is opened.
Abstract
Description
しかしながら特許文献1や特許文献2を含む従来構造では、キャップ本体が開栓時において容器口部で充分に旋回し難いことから、例えば飲用時に飲用者の頬や鼻などにキャップが接触するなど干渉して不快を感じてしまう可能性が否めない。
さらに容器口部からキャップ本体がどの程度まで旋回すれば開栓完了となるかについて明確であれば、飲用者の利便性向上に資すると言える。
また、本発明の合成樹脂キャップの他の一態様によれば、上記した効果に加え、開栓時において容器口部に設けられた顎部が湾曲部に沿って摺動することから、顎部が湾曲部を乗り上げる抵抗が徐々に上昇することで飲用者が不用意に途中で開栓を止めてしまうことが抑制できる。
なお本実施形態においては、説明の便宜上、図を用いた説明においてX、Y及びZ方向を適宜設定したが、説明の便宜上であって本発明を何ら過度に限定するものではない。また、以下で詳述する構成以外については、公知の容器やキャップの構造を適宜援用することができる。
≪合成樹脂キャップ100≫
図1~8を適時参照しつつ、第1実施形態に係る合成樹脂キャップ100の構造について詳細に説明する。
また第1実施形態の側方延長部202は、上記したリング状の形態に限られず、例えば図11に例示するように側方延長部202が容器200の本体203の一部(上側部を構成)として一体化された形態となっていてもよい。
以下では、上記した側方延長部202として、図1などで示したネックサポートを例にして説明を継続する(以降はネックサポート202として説明する)。また、容器200のうち上述した以外の構造については、上記した特許文献を含む公知の容器構造を適用してもよい。
なお図7(a)においては、第1実施形態のストラップ部12はスカート壁21の下縁に接続されているが、ストラップ部12のスカート壁21への接続態様はこの形態に限られない。すなわち図7(b)に例示するように、スカート壁21の下縁の一部が上方にせり上がり、このせり上がったスカート壁21に対してストラップ部12の上端が接続される形態であってもよい。
また、第1実施形態においては、上述したとおり開栓時に鍔部40が使用者によって摘まみ上げられる形態を例示したが、この手法以外にも例えば鍔部40の下面に指をかけて下方から押し上げる形態であってもよい。
次に図2、4及び8を特に参照しつつ、第1実施形態における固定リブ30の構造および機能について詳述する。
まずこれらの図からも理解されるとおり、第1実施形態のキャップ本体20は、上記したスカート壁21から垂下し且つこのスカート壁21よりも径方向外側(例えば図2では-X方向)へ突出した固定リブ30を更に備えて構成されている。
肩部33は、図8などに示すように、前記した中間段部32の外側端部で下方に向けて湾曲した部位である。より詳細に、第1実施形態の肩部33は、前記した第1傾斜部31の下方に設けられて中間段部32の外縁で外側面部34へ続く曲面状のコーナー部位である。
図2~5及び8から理解されるとおり、固定リブ30は、それぞれ上記した中間段部32、肩部33、外側面部34及び下側テーパー部35を有することで、第1傾斜部31の下方において径方向外側に向けて突出した部位を具備することになる。従って、第1実施形態では、固定リブ30のうち中間段部32、肩部33、外側面部34及び下側テーパー部35で構成される領域を「突出部」と定義する。
なお後述するとおり、第1実施形態では容器口部201の側面に対して突出部のうち肩部33が接触する形態(図9(c)など参照)を例示するが、この形態に限られない。例えば突出部を構成する外側面部34と容器口部201の側面とが接触する形態であってもよい。以降の説明では、突出部のうち肩部33が容器口部201の側面と接触するケースを例にして説明を継続する。
次に図9及び10も用いて、第1実施形態における合成樹脂キャップ100の開栓方法について状態遷移を参照しつつ説明する。
一方で第1実施形態の比較例として上記した固定リブ30を有さない合成樹脂キャップ101を用いた開栓方法における状態遷移を図10に示す。なお本比較例においては、上記した実施形態と同一の機能や構成を有する部材については同一の番号を付してその説明は省略する。
そしてその後、容器口部201の側面と固定リブ30の肩部33(突出部)とが接触するとともに、ネックサポート202の上面202aと天面板22とが接触する(2点接触の状態)。
例えば上記した180°以上の上蓋反転をより効果的に実現するためには、固定リブ30が径方向外側へある程度突出しつつ開栓時にタンパーエビデントバンド10を当該固定リブ30に乗り越えることが望ましいが、この第2傾斜部を固定リブ30が備えることで実現することができる。
また、第1実施形態の合成樹脂キャップ100では、上記した特徴事項を具備することで、例えば合成樹脂キャップ100の軸方向寸法を低減させたとしても、比較的少ない樹脂材料で大きな上蓋反転(例えば180°を超える旋回角度)を実現することができ、上記した効果を発揮させつつコストダウンも更に実現することができる。
次に本発明を好適に実施するための第2実施形態について説明する。
なお本実施形態においては、既に第1実施形態で説明した部材やその構成要素と同じ機能を有するものについては、同じ参照番号を付してその説明は適宜省略する。従って、以下においては、第1実施形態との相違点を中心に説明を継続する。
≪合成樹脂キャップ110≫
図12~18を適時参照しつつ、第2実施形態に係る合成樹脂キャップ110の構造について詳細に説明する。
また第2実施形態の側方延長部213は、上記したリング状の形態に限られず、例えば図21に例示するように側方延長部213が容器200の本体220の一部(上側部を構成)として一体化された形態となっていてもよい。
次に図13、15及び18を特に参照しつつ、第2実施形態における固定リブ30の構造および機能について詳述する。
まずこれらの図からも理解されるとおり、第2実施形態のキャップ本体20は、上記したスカート壁21から垂下し且つこのスカート壁21よりも径方向外側(例えば図13では-X方向)へ突出した固定リブ30を更に備えて構成されている。
肩部33は、図18などに示すように、前記した中間段部32の外側端部で下方に向けて湾曲した部位である。より詳細に、本実施形態の肩部33は、前記した第1傾斜部31の下方に設けられて中間段部32の外縁で湾曲部37へ続く曲面状のコーナー部位である。
次に図19及び20も用いて、本実施形態における合成樹脂キャップ110の開栓方法について状態遷移を参照しつつ説明する。
一方で本実施形態の比較例として上記した固定リブ30を有さない合成樹脂キャップ111を用いた開栓方法における状態遷移を図20に示す。なお本比較例においては、上記した実施形態と同一の機能や構成を有する部材については同一の番号を付してその説明は省略する。
そしてその後、容器口部210の側面と固定リブ30の肩部33(突出部)とが接触するとともに、ネックサポート213の上面213aと天面板22とが接触する(2点接触の状態)。
また、第2実施形態の合成樹脂キャップ110では、上記した特徴事項を具備することで、例えば合成樹脂キャップ110の軸方向寸法を低減させたとしても、比較的少ない樹脂材料で大きな上蓋反転(例えば180°を超える旋回角度)を実現することができ、上記した効果を発揮させつつコストダウンも更に実現することができる。
10 タンパーエビデントバンド
20 キャップ本体20
21 スカート壁
22 天面板
23 インナーリング
30 固定リブ
31 第1傾斜部
32 中間段部
33 肩部
34 外側面部
35 下側テーパー部
36 底面部
37 湾曲部
38 下側底面部
40 鍔部
200 容器
201 容器口部
202 ネックサポート(側方延長部の一例)
210 容器口部
211 注出部
212 縮径部
213 ネックサポート(側方延長部の一例)
220 本体
Claims (11)
- 容器口部の外周面に嵌入されるタンパーエビデントバンドと、
スカート壁及び天面板を有し、弱化部及びストラップ部を介して前記タンパーエビデントバンドと連結され、前記スカート壁よりも径方向外側へ突出した固定リブを前記スカート壁に備えたキャップ本体と、を含み、
前記固定リブは、下方に向かって末広がりの第1傾斜部と前記第1傾斜部の下方に設けられた突出部とから形成され、
開栓時において、前記容器口部の側面と前記突出部とが接触するとともに、前記容器口部の下方に設けられて径方向に延長された側方延長部の上面と前記天面板とが接触することで、前記キャップ本体の開栓時における姿勢が維持される、
ことを特徴とする合成樹脂キャップ。 - 容器口部の外周面に嵌入されるタンパーエビデントバンドと、
スカート壁及び天面板を有し、弱化部及びストラップ部を介して前記タンパーエビデントバンドと連結され、前記スカート壁よりも径方向外側へ突出した固定リブを前記スカート壁に備えたキャップ本体と、を含み、
前記固定リブは、前記径方向外側へ延びる中間段部と、前記中間段部の外側端部で下方に向けて湾曲した肩部と、前記肩部から連続して下方に向かって漸次に縮径された湾曲部と、を少なくとも含む突出部を有し、
開栓時において、前記容器口部に設けられた顎部が前記湾曲部に沿って摺動した後に、前記容器口部の側面と前記突出部とが接触するとともに、前記容器口部の下方に設けられて径方向に延長された側方延長部の上面と前記天面板とが接触することで、前記キャップ本体の開栓時における姿勢が維持され、
前記突出部は、前記中間段部の上方に配置されて、前記天面板から下方に向かって末広がりの第1傾斜部をさらに有することを特徴とする合成樹脂キャップ。 - 前記湾曲部は、前記開栓時に前記ストラップ部を介した前記キャップ本体の反転に必要な開栓力が漸次増加するように、前記キャップ本体が前記容器口部を封止した状態において上に凸となる湾曲面で構成されてなる、請求項2に記載の合成樹脂キャップ。
- 前記キャップ本体は、未開栓状態から180°を超えて前記ストラップ部を基端に旋回した状態で、前記開栓時における姿勢が維持される、請求項1~3のいずれか一項に記載の合成樹脂キャップ。
- 前記突出部は、前記180°を超えて前記キャップ本体が旋回可能となるように前記固定リブの下端からの設置高さが設定されている、請求項4に記載の合成樹脂キャップ。
- 前記開栓時において、前記第1傾斜部が前記側方延長部の側面を摺動することで、前記側方延長部の上面へ潜り込むように前記天面板の上縁部が誘導される、請求項1~5のいずれか一項に記載の合成樹脂キャップ。
- 前記突出部は、前記第1傾斜部の下端から径方向外側に延びる中間段部と、前記中間段部の外側端部で下方に向けて湾曲した肩部と、前記肩部から連続して前記径方向外側へ突出した外側面部とからなり、
前記開栓時において前記タンパーエビデントバンドとの干渉を抑制するため、前記外側面部の下端には下方に向かって尻窄まりの第2傾斜部が設けられてなる、請求項1に記載の合成樹脂キャップ。 - 前記ストラップ部は、少なくとも2つの連結ストラップを有し、
前記固定リブは、前記2つの連結ストラップの間に介在するように配設されてなる、請求項1~7のいずれか一項に記載の合成樹脂キャップ。 - 前記キャップ本体は、前記固定リブとは反対側に設けられる鍔部をさらに備えてなる、請求項1~8のいずれか一項に記載の合成樹脂キャップ。
- 前記突出部は、前記径方向外側へ延びる中間段部と、前記中間段部の外側端部で下方に向けて湾曲した肩部と、前記肩部から連続して下方に向かって漸次に縮径された湾曲部と、を少なくとも含み、
前記容器口部に設けられた顎部が前記湾曲部を乗り越えた後に、前記固定リブが前記容器口部の側面と接触して発音される、請求項1~6のいずれか一項に記載の合成樹脂キャップ。 - 容器口部の外周面に嵌入されるタンパーエビデントバンドと、
スカート壁及び天面板を有し、弱化部及びストラップ部を介して前記タンパーエビデントバンドと連結され、前記スカート壁よりも径方向外側へ突出した固定リブを前記スカート壁に備えたキャップ本体と、を含み、
前記固定リブは、前記径方向外側へ延びる中間段部と、前記中間段部の外側端部で下方に向けて湾曲した肩部と、前記肩部から連続して下方に向かって漸次に縮径された湾曲部と、を少なくとも含む突出部を有し、
開栓時において、前記容器口部に設けられた顎部が前記湾曲部に沿って摺動した後に、前記容器口部の側面と前記突出部とが接触するとともに、前記容器口部の下方に設けられて径方向に延長された側方延長部の上面と前記天面板とが接触することで、前記キャップ本体の開栓時における姿勢が維持される、
ことを特徴とする合成樹脂キャップ。
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EP22745791.8A EP4286292A1 (en) | 2021-01-27 | 2022-01-24 | Synthetic resin cap |
BR112023013919A BR112023013919A2 (pt) | 2021-01-27 | 2022-01-24 | Tampa de resina sintética |
CN202280010093.9A CN116723988A (zh) | 2021-01-27 | 2022-01-24 | 合成树脂盖 |
MX2023008820A MX2023008820A (es) | 2021-01-27 | 2022-01-24 | Tapa de resina sintetica. |
AU2022213093A AU2022213093A1 (en) | 2021-01-27 | 2022-01-24 | Synthetic resin cap |
US18/262,038 US20240092539A1 (en) | 2021-01-27 | 2022-01-24 | Synthetic resin cap |
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JP2021010759A JP2022114493A (ja) | 2021-01-27 | 2021-01-27 | 合成樹脂キャップ |
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JP2021-090719 | 2021-05-29 | ||
JP2021090719A JP2022183397A (ja) | 2021-05-29 | 2021-05-29 | 合成樹脂キャップ |
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US (1) | US20240092539A1 (ja) |
EP (1) | EP4286292A1 (ja) |
AU (1) | AU2022213093A1 (ja) |
BR (1) | BR112023013919A2 (ja) |
MX (1) | MX2023008820A (ja) |
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JPH0471653U (ja) * | 1990-11-01 | 1992-06-24 | ||
JP2009507732A (ja) * | 2005-09-15 | 2009-02-26 | クレアノヴァ ユニヴァーサル クロージャーズ リミテッド | ヒンジ付き閉蓋具 |
JP2009096500A (ja) * | 2007-10-16 | 2009-05-07 | Mikasa Sangyo Kk | ヒンジキャップ |
JP2013517995A (ja) * | 2010-01-25 | 2013-05-20 | グリーンキャップ カンパニー リミテッド | 栓紛失および空回転防止容器 |
-
2022
- 2022-01-24 MX MX2023008820A patent/MX2023008820A/es unknown
- 2022-01-24 US US18/262,038 patent/US20240092539A1/en active Pending
- 2022-01-24 WO PCT/JP2022/002403 patent/WO2022163570A1/ja active Application Filing
- 2022-01-24 EP EP22745791.8A patent/EP4286292A1/en active Pending
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JPH0471653U (ja) * | 1990-11-01 | 1992-06-24 | ||
JP2009507732A (ja) * | 2005-09-15 | 2009-02-26 | クレアノヴァ ユニヴァーサル クロージャーズ リミテッド | ヒンジ付き閉蓋具 |
JP2009096500A (ja) * | 2007-10-16 | 2009-05-07 | Mikasa Sangyo Kk | ヒンジキャップ |
JP2013517995A (ja) * | 2010-01-25 | 2013-05-20 | グリーンキャップ カンパニー リミテッド | 栓紛失および空回転防止容器 |
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EP4286292A1 (en) | 2023-12-06 |
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