EP3817988A1 - Flap closure - Google Patents
Flap closureInfo
- Publication number
- EP3817988A1 EP3817988A1 EP18742420.5A EP18742420A EP3817988A1 EP 3817988 A1 EP3817988 A1 EP 3817988A1 EP 18742420 A EP18742420 A EP 18742420A EP 3817988 A1 EP3817988 A1 EP 3817988A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hinge
- tensioning
- closure
- curved sections
- hinged
- 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.)
- Pending
Links
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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
- B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
- B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions
- B65D47/0814—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions by at least three hinge sections, at least one having a length different from the others
Definitions
- the present invention relates to a hinged closure with a closure body and a hinged cover, which are connected to one another by at least one hinge and at least one tensioning strap to achieve a snap effect when opening and / or closing the hinged cover.
- the hinged closure is preferably made of plastic, in particular by injection molding.
- the closure body and the hinged lid including the at least one hinge and the at least one tensioning strap, can be used together, i. H. one piece, injection molded.
- the hinged lid can first be injection molded and then the closure body can be injection molded onto it. In both cases, the at least one hinge and the at least one tension band can be injection molded together with the closure body or together with the hinged lid.
- the spray position of the hinged closure ie the position in which the closure body and the hinged cover are injected together or against one another are injected, is preferably a position of about 180 degrees open the hinged cover. Since the hinged closure is shaped in this position, no mechanical forces act on its individual components in this position. In particular, the at least one tensioning strap is thus unloaded in the spray position, ie it is not exposed to tensile or bending stresses or other mechanical forces.
- the at least one hinge is preferably designed as a film hinge, i. H. as a thin point in the material along a line that corresponds to the axis of rotation of the hinge.
- the hinge function results from the increased flexibility of the material at this thin point.
- the hinged lid By pivoting the hinged lid around the axis of the at least one hinge, the hinged lid can be brought into at least one, in particular completely, closed position and into at least one open position.
- closure body for dispensing a product, which is covered by the hinged lid in its closed position, preferably in a sealing manner.
- the closure body is intended to be fastened on a container, in particular on a bottle, in particular by screwing on or snapping on.
- Folding closures of the type under consideration are used to dispense a large number of liquid, pasty, powdery, granular, lumpy or otherwise flowable or pourable products from the container, for example for personal care products, other care products, cosmetics, oils or fats, cleaning agents, medicines, Food or drink.
- the hinged lid When the closure body is attached to the container, the hinged lid can preferably be used with a single finger, preferably with the Thumb, be opened and snaps into a stable open position when overcoming a certain opening angle, the "snap-in angle". In this open position, the hinged lid is then not in the way when the product is dispensed from the container. In particular when the container is used as a drinking bottle, the hinged lid does not hinder the user from drinking by coming into contact with his mouth or nose.
- the hinged lid can be closed from its open position, preferably again with a single finger, and preferably snaps again when overcoming a certain opening angle, in particular again the snap-in angle, into the fully closed or an almost closed position, preferably from the nearly closed position can be brought into the fully closed position by a further pressure with the finger.
- the above-mentioned snap effect is achieved in that the at least one tensioning strap is arranged in such a way that it is only slightly tensioned in the closed position of the hinged cover, is successively tensioned when the hinged cover is opened until it reaches its maximum tension at the snap-in angle, and after overcoming the snap-in angle when opening the hinged cover again and thus relaxed.
- the corresponding process preferably also runs the other way around when the hinged lid is closed, so that the snap effect mentioned also arises.
- connection points of the tensioning strap with the closure body or with the hinged lid are usually arranged lower (in the fully opened position of the hinged lid) than the axis of rotation of the hinge.
- the orientation of the hinged closure in which the closure body is in the fully closed position of the hinged cover below the hinged cover is taken as a basis.
- the connection points of the tensioning band with the closure body or with the hinged cover then preferably lie vertically one above the other, so that the tensioning band also runs vertically between these connection points.
- Niches are preferably formed in the outer wall of the closure body and / or in the outer wall of the hinged cover, in which recesses the tensioning strap comes to rest in the fully closed position of the hinged cover.
- a central hinge and two tensioning straps arranged on both sides of the hinge as seen in the circumferential direction, or vice versa, a central tensioning strap and two hinges arranged on both sides of the tensioning strap can be provided.
- other combinations of at least one hinge and at least one tensioning strap are also conceivable.
- the at least one tensioning strap is exposed to tensile stresses as well as - due to the rotation of the hinged lid about the hinge axis - bending stresses when opening and / or closing the hinged lid.
- the tensioning strap is connected to the fastener body or to the hinged lid by two curved sections, which are connected by a flat section (or in cross section by a straight section) Section) are interconnected.
- the flat section is primarily subjected to tensile stress, while the curved sections are overlapped by a bending stress and a tensile stress.
- the curved sections thus also act as bending zones or as pivot points.
- the present invention is therefore based on the object of providing a folding closure of the type under consideration, in which breaking or tearing of the at least one tensioning strap occurs less frequently.
- the hinged closure considered here has a closure body and a hinged lid. In order to achieve a snap effect when opening and / or closing the hinged cover, these are connected to one another by at least one hinge and by at least one tensioning strap.
- a tensioning band is understood to mean a band-shaped, preferably elastic element with two ends, one end being connected to the closure body and the other end being connected to the hinged cover.
- the at least one tensioning strap in the unloaded state has at least three curved sections in a cross section perpendicular to the axis of rotation of the at least one hinge and a substantially straight section between each two adjacent curved sections, and the at least one tensioning strap does not bend in opposite directions in this cross-section.
- the latter condition means that the curved sections in this cross section all bend in the same direction, ie all clockwise or all counterclockwise.
- the average angle of curvature of the curved sections becomes smaller, the angle of curvature of a curved section being understood to mean the angle by which the course of the tensioning band (in the unloaded state of the tensioning band) is deflected in cross section on this curved section.
- the angle of curvature of an individual curved section is pulled completely straight at the maximum load on the tensioning strap. Therefore, the smaller the angle of curvature of an individual curved section, the less frequently does this curved section break or tear when the folding closure is used.
- the average angle of curvature at the curved sections is smaller than would be the case with a tension band with the same number of curved sections, which would be curved in different directions at these curved sections.
- the total curvature angle of the curved sections between the connection point of the tensioning strap with the closure body and the connection point of the tensioning strap with the hinged lid is composed only of individual angles of curvature with the same sign, in the second case (Curvature in different directions), however, from individual angles of curvature with different signs.
- the individual angles of curvature in the first case are smaller on average than in the second case. As explained above, breaking or tearing of this curved portion also occurs less frequently.
- the curved sections in this cross section are essentially symmetrical to the center of the at least one tension band between the connection point of the tension band with the closure body and the connection point of the tension band with the
- Hinged lid arranged. As a result, the tension on the tensioning strap with tensile and bending stresses is symmetrical and therefore particularly uniform.
- the curved sections in this cross section are not essentially symmetrical to the center of the at least one tensioning strap between the connection point of the tensioning strap with the closure body and the connection point of the tensioning strap with the
- Hinged lid are arranged.
- the number of curved sections is preferably odd, in particular the number of curved sections is 3, 5 or 7.
- the number of curved sections is even, in particular the number of curved sections is 4, 6 or 8.
- connection point is therefore not additionally loaded with a bending stress when the maximum tensile stress occurs, as a result of which breakage or tearing of the tensioning strap, in this case at its connection points with the closure body or with the hinged cover, occurs less frequently.
- the at least one tensioning strap is curved everywhere in this cross section. This leads to in particular to a tensioning band with a circular arc, elliptical or other curved cross section.
- features of the first and the second solution according to the invention of the stated object can also be combined with one another in a hinged closure, apart from the fact that the at least one tensioning strap is curved everywhere in cross section, since in this case the tensioning strap has no straight sections in cross section.
- FIG. 1 shows a perspective view of a folding closure from the prior art in the injection position
- FIG. 2 a view of a tensioning strap of the hinged closure from the prior art according to FIG. 1 in a mixed perspective and sectional view;
- FIG. 3 a view corresponding to FIG. 2 of a tensioning strap of a first embodiment of a hinged closure according to the first solution of the task; 4: a view corresponding to FIG. 2 of a tensioning strap of a second embodiment of a hinged closure according to the first solution of the task;
- FIG. 5 a view corresponding to FIG. 2 of a tensioning strap of a hinged closure according to the second solution to the problem
- FIG. 6 the tensioning strap of the snap lock according to FIG. 5 in a partially open position of the snap lock with maximum tension
- FIG. 7 a view corresponding to FIG. 2 of a further embodiment of a tensioning strap of a hinged closure according to the second solution of the task;
- FIG. 8 the tensioning strap of the snap lock according to FIG. 7 in a partially open position of the snap lock with maximum tension.
- Fig. 1 shows a perspective view of a folding closure from the prior art in the spray position, which corresponds to the position of the hinged lid opened by 180 degrees.
- 2 to 5 also show sections of a snap lock in this position.
- the top surface 4 has two sections on different fleas. In the middle of the higher section of the top surface 4 there is an outlet opening 5 through which a product, for example a shower bath or a shampoo, can exit.
- a connection device (not shown in FIG. 1), in particular an internal thread, by means of which the closure body 1 can be fastened to a container, in particular with a corresponding external thread, is arranged on the inside of the lateral surface 3.
- the connecting device can also be part of a snap lock, the other part of the snap lock being arranged on the container.
- a seal can be arranged to prevent leakage of the product between the closure body 1 and the container.
- the hinged lid 2 also has a cylindrical outer surface 6, which has almost the same radius as the outer surface 3 of the closure body 1.
- the (in the open position of the hinged cover 2 shown in FIG. 1) lower front end of the outer surface 6 of the hinged cover 2 is closed by a cover surface 7.
- a sealing plug 8 protrudes into the inside of the outer surface 6, which engages in the dispensing opening 5 when the hinged lid 2 is closed and seals it in a sealed manner.
- the closure body 1 and the hinged lid 2 are made in one piece by injection molding in the illustrated embodiment.
- the pivotability of the hinged cover 2 relative to the closure body 1 is achieved by a film hinge 9, which connects the closure body 1 on the flea of the lower section of the cover surface 4 of the closure body 1 with the edge of the outer surface 6 of the hinged cover 2 facing away from the cover surface 7.
- a film hinge 9 which connects the closure body 1 on the flea of the lower section of the cover surface 4 of the closure body 1 with the edge of the outer surface 6 of the hinged cover 2 facing away from the cover surface 7.
- the upper edge of the lower section of the cover surface 4 of the closure body 1, the hinge 9 and the (in the open position) upper edge of the lateral surface 6 of the hinged cover 2 are on the same level.
- closure body 1 and the hinged lid 2 are connected by two straps 10, which are arranged on both sides of the hinge 9, viewed in the circumferential direction.
- FIG. 2 shows a view of one of the tensioning straps 10 of the hinged closure from the prior art according to FIG. 1 in a mixed perspective and sectional view, the axis of the hinge 9 running perpendicular to the image plane.
- the same reference numerals in the figures also denote the same elements of the snap lock.
- Closure body 1 or with the hinged cover 2 are arranged on the respective lateral surface 3 and 6 and are therefore lower than the plane of the hinge 9.
- niches 11 and 12 are arranged in the lateral surfaces 3 and 6 , in which the strap 10 comes to rest when the hinged cover 2 is completely closed.
- the tension band 10 has a curved section 13a and 13b at its connection points 15a, 15b with the closure body 1 and with the hinged cover 2, respectively.
- a flat section 14a which is straight in cross section, extends between them.
- connection points 15a, 15b of the tensioning strap 10 increases due to the arrangement of the connection points 15a, 15b of the tensioning strap 10 with the closure body 1 or with the hinged cover 2. 15b.
- the tensioning strap 10 is thus stretched.
- the straight section 14a is then primarily subjected to a tensile stress, while the curved sections 13a and 13b are subjected to a superposition of a bending stress and a tensile stress.
- This superimposition of forces results in the greatest tension states within the tensioning band 10 in the curved sections 13a and 13b, which are fully stretched when the maximum load is applied, i. H. "just pulled". This can cause the tensioning strap 10 to break or tear, in particular in the area of the connection points 15a, 15b to the
- FIG. 3 shows a view corresponding to FIG. 2 of a tensioning strap 10 of a first embodiment of a hinged closure according to the first solution of the Task.
- the tensioning band 10 has three curved sections 13a, 13b, 13c, a straight section 14a running between the curved sections 13a and 13b and a straight section 14b between the curved sections 13b and 13c.
- the bending stresses occurring in the curved sections 13a, 13b, 13c are thus distributed over more curved sections and thus smaller per curved section.
- the tensioning strap 10 is only curved in the same direction in its course from its connection point 15a with the closure body 1 to its connection point 15b with the hinged cover 2, namely clockwise in the view shown in FIG. 3.
- the average angle of curvature at the curved sections 13a, 13b, 13c can be kept smaller than if, with the same number of curved sections, different sections would also curve in opposite directions.
- the tension band 10 does not protrude or hardly protrudes radially outward beyond the lateral surfaces 3 and 6 in the closed state of the hinged closure and is therefore hardly perceptible to the user.
- FIG. 4 shows a view corresponding to FIG. 2 of a tension band 10 of a second embodiment of a hinged closure according to the first solution to the problem.
- the tensioning band 10 has four curved sections 13a, 13b, 13c, 13d, the straight section 14a between the curved sections 13a and 13b and the straight section between the curved sections 13b and 13c straight section 14b and between the curved sections 13c and 13d the straight section 14c.
- FIG. 5 shows a view corresponding to FIG. 2 of a tensioning strap 10 of a hinged closure according to the second solution to the problem.
- the tensioning strap 10 has a straight section 14a, 14b at the connection points 15a, 15b with the closure body 1 and with the hinged cover 2, between which a curved section 13a extends.
- the straight sections 14a and 14b are of different lengths. In the same way, the straight sections 14a and 14b could also have the same length.
- the straight sections 14a and 14b are connected to the closure body 1 and to the hinged cover 2 at such an angle that the center lines T1, T2 of the straight sections 14a and 14b (corresponding to the tangents to these center lines if the sections are curved) would) extend exactly or almost exactly through the axis of the hinge 9 in their extension. The distance from the respective center line T1, T2 to the axis of rotation of the hinge 9 is therefore almost or exactly zero.
- FIG. 6 shows the tightening strap 10 of the hinged closure according to FIG. 5 in a partially open position of the hinged cover 2.
- the open position of the hinged cover 2 is chosen so that the axis of the hinge 9 between the connection points 15a, 15b of the tightening strap 10 with the
- FIG. 7 shows a view corresponding to FIG. 2 of a further embodiment of a tensioning strap 10 of a snap lock according to the second solution to the problem and FIG. 8 the tensioning strap 10 of the snap lock according to FIG.
- FIGS 7 and 8 differs from the arrangement according to FIGS. 5 and 6 essentially in that the tension band 10 in the stretched state (FIG. 8) does not exactly cross-section through the axis of rotation of the hinge 9, but in one short distance from it.
- the center lines T1, T2 of the straight sections 14a and 14b do not extend exactly through the axis of the hinge in their extension
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Package Frames And Binding Bands (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2018/068148 WO2020007465A1 (en) | 2018-07-04 | 2018-07-04 | Flap closure |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3817988A1 true EP3817988A1 (en) | 2021-05-12 |
Family
ID=62948080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18742420.5A Pending EP3817988A1 (en) | 2018-07-04 | 2018-07-04 | Flap closure |
Country Status (10)
Country | Link |
---|---|
US (1) | US20210292053A1 (en) |
EP (1) | EP3817988A1 (en) |
AR (2) | AR114652A1 (en) |
BR (1) | BR112020026723B1 (en) |
CA (1) | CA3105399A1 (en) |
CO (1) | CO2021000648A2 (en) |
MX (1) | MX2020014324A (en) |
PH (1) | PH12021550008A1 (en) |
WO (1) | WO2020007465A1 (en) |
ZA (1) | ZA202007898B (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4638916A (en) * | 1985-07-12 | 1987-01-27 | Owens-Illinois, Inc. | Closure with snap-type hinge cap |
CH672771A5 (en) * | 1987-05-13 | 1989-12-29 | Alfatechnic Ag | |
US5435456A (en) * | 1991-02-12 | 1995-07-25 | Createchnic Ag | Plastic snap hinge closure |
US5489035A (en) * | 1994-10-13 | 1996-02-06 | Owens-Illinois Closure Inc. | Closure with snap-type hinge cap |
US5785193A (en) * | 1995-02-15 | 1998-07-28 | Yoshino Kogyosho Co., Ltd. | Snap-hinged cap |
-
2018
- 2018-07-04 BR BR112020026723-6A patent/BR112020026723B1/en active IP Right Grant
- 2018-07-04 EP EP18742420.5A patent/EP3817988A1/en active Pending
- 2018-07-04 MX MX2020014324A patent/MX2020014324A/en unknown
- 2018-07-04 CA CA3105399A patent/CA3105399A1/en active Pending
- 2018-07-04 US US17/256,046 patent/US20210292053A1/en active Pending
- 2018-07-04 WO PCT/EP2018/068148 patent/WO2020007465A1/en active Application Filing
-
2019
- 2019-02-28 AR ARP190100504A patent/AR114652A1/en active IP Right Grant
-
2020
- 2020-12-17 ZA ZA2020/07898A patent/ZA202007898B/en unknown
-
2021
- 2021-01-04 PH PH12021550008A patent/PH12021550008A1/en unknown
- 2021-01-22 CO CONC2021/0000648A patent/CO2021000648A2/en unknown
-
2023
- 2023-02-08 AR ARP230100300A patent/AR128481A2/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA202007898B (en) | 2021-10-27 |
AR128481A2 (en) | 2024-05-15 |
US20210292053A1 (en) | 2021-09-23 |
MX2020014324A (en) | 2021-05-27 |
BR112020026723B1 (en) | 2023-12-12 |
CO2021000648A2 (en) | 2021-01-29 |
CA3105399A1 (en) | 2020-01-09 |
AR114652A1 (en) | 2020-09-30 |
BR112020026723A2 (en) | 2021-03-23 |
WO2020007465A1 (en) | 2020-01-09 |
PH12021550008A1 (en) | 2021-09-27 |
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