WO1997037901A1 - Verschlusskappe zum verschliessen eines behälters - Google Patents
Verschlusskappe zum verschliessen eines behälters Download PDFInfo
- Publication number
- WO1997037901A1 WO1997037901A1 PCT/CH1997/000126 CH9700126W WO9737901A1 WO 1997037901 A1 WO1997037901 A1 WO 1997037901A1 CH 9700126 W CH9700126 W CH 9700126W WO 9737901 A1 WO9737901 A1 WO 9737901A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cap
- guideway
- beads
- horizontal section
- sections
- Prior art date
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
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
- B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
Definitions
- the invention relates to a closure cap for closing a container.
- a closure cap for closing a container.
- care must be taken that the internal pressure can escape when the closure cap is removed before the cap is completely separated from the container mouth.
- ventilation slots were provided for this purpose on the inside of the sealing cap, which allow gas to be released at a time when the sealing cap is still largely connected to the container mouth. If no such venting slots are provided, there is a risk that the closure cap will jump off the mouth prematurely due to the increased internal pressure during the opening process.
- a disadvantage of such known closure arrangements is that both the formation of threads on the inside of the closure cap and on the outside of the container mouth necessitates large wall pieces and thus a greater use of material, and accordingly entails high production costs.
- Another disadvantage is that the closure cap always has to be partially opened, so that the thread partially disengages before the pressure equalization takes place. As a result, the closure cap is no longer fully engaged with the container mouth at the time of pressure equalization, which means that there is a risk that the closure cap will be blown off via the thread.
- No. 5,135,124 proposes a closure cap to reduce the material consumption, which is provided on the inside with two different types of retaining elements.
- the closure With In the first retaining elements, the closure is held on the container in the closed state. When opened, the closure is moved into a venting position in which it is held on the container by second retaining elements.
- this closure cap has the disadvantage that it only partially engages with the retaining elements of the container mouth during the transition from the sealing position to the venting position. This in turn creates the risk of the cap dropping off prematurely before there is complete pressure equalization between the interior of the container and the surroundings.
- such caps are complex to manufacture.
- the object of the present invention is to avoid the disadvantages of the known, in particular to create a closure cap for closing a container with increased internal pressure, which can be produced easily and with little material consumption and nevertheless early release of the closure cap during the Opening process reliably prevented.
- the closure cap for closing a container with increased internal pressure essentially consists of a cap base and a cap wall, which is provided on its inside with a guideway of a bayonet thread.
- the guideway can be brought into engagement with retaining cams on the outside of the container mouth and has a detent position for releasing the gas before the cap is finally unscrewed.
- the locking position of the guideway is formed by at least one locking edge.
- the latching edge limits the unscrewing movement in such a way that the guideway engages with the entire retention surface of the retention cams on the container mouth during the entire gas release process. Thanks to the locking edge, it is not possible to move the closure cap over the locking position during the opening process before a complete pressure equalization has taken place.
- the guideway can be formed, for example, by two or more beads protruding inwards from the inside of the cap wall.
- the surface of these beads facing the cap base forms the retention surface with which the closure cap interacts with the retention cams on the outside of the container mouth.
- the guideway is defined between this surface and the side of an adjacent bead facing away from the cap bottom.
- the guideway is defined by four beads, ie the guideway consists of four individual partial tracks. One track is enclosed between two beads.
- the retaining cams are guided in a precisely defined manner during the screwing-on or opening process. This also reliably eliminates the risk of canting.
- Each bead extends over a winding area of approximately 160-200 °, preferably 180 °. With an even arrangement of the four beads on the circumference, there is an overlap of two adjacent ones Beads of about 90 °.
- each bead is formed by four sections. Two of these sections have no slope and are horizontal, i.e. parallel to the bottom of the cap. The other two sections have an incline. This slope is necessary to press the closure from the open position into a sealing position.
- a sealing position is defined.
- a gas release position is defined by the second horizontal section.
- the two horizontal sections are connected with a sloping section, so that when the cap is screwed on between the gas release position and the sealing position, the necessary sealing pressure can be achieved by the slope.
- the second sloping section is arranged at the beginning of each bead and enables the retention cams to be inserted easily into the guideways.
- the latching edge is preferably arranged at the end of the second horizontal section remote from the first horizontal section. So that the unscrewing movement of the closure cap is stopped until a complete pressure equalization is achieved, the locking edge is arranged on the surface facing the cap base of at least one bead.
- each individual bead is preferably provided with such a locking edge.
- the second horizontal section is advantageously longer than the first horizontal section is formed.
- the length of the second horizontal section defines the angular range of the rotary movement at which gas is released before the unscrewing movement is interrupted.
- the distance between two adjacent beads is preferably not kept constant over the entire length of the beads.
- the distance between the two horizontally running sections is chosen to be smaller than the distance between the two sloping sections. This is to ensure that the guide cams can be guided evenly through the guideway formed between the beads. This results in a minimum distance between the beads in the area of the locking edge. The maximum distance between two beads is reached in the area of the inclined sections. This is necessary because the retaining cams on the outside of the container mouth can have a certain lateral extent and would otherwise be misjudged if the inclined sections were too close.
- each bead can be provided with a recess on an underside facing away from the cap base in the region of the latching edge of the bead located below it. This additionally increases the guidance of the retaining cams in the guideway. In this way, the distance between the horizontal sections of two adjacent beads can be selected such that the space corresponds to the thickness of the retaining cams of the container to be closed.
- FIG. 1 shows a schematic representation of a closure cap according to the invention and a container mouth
- FIG. 2 cross section through a closure cap according to the invention
- FIG. 3 development of the inside of the closure cap from FIG. 2,
- FIG. 4 an enlarged section of the development from FIG. 3, FIG. 5a development with indicated retention cams in the sealing position,
- FIG. 1 shows a closure cap 1 and a container mouth 2 which can be closed with the closure cap 1.
- the closure cap 1 essentially consists of a cap base 3 and a cap wall 4 attached to the outer edge of the cap base 3.
- the cap wall 4 is on the inside 5 a guideway 6 is provided which can be brought into engagement with retaining cams 7 on the outside 8 of the container mouth 2.
- the guideway 6 is delimited by beads 11.
- the guide track 6 has locking edges 9.
- the locking edges are attached to each bead 11 on the side of the bead 11 facing the cap base 3.
- the entire arrangement is designed such that the closure cap 1 is held by the entirety of the retention surfaces 10 of the retention cams 7 during the entire gas release process.
- the number of beads 11 can vary in individual cases, although three to six beads 11, but especially four beads, generally ensure optimal handling and safe engagement.
- Figure 2 shows a cross section through a closure cap according to the invention.
- the locking edge 9 limiting the unscrewing movement is clearly visible.
- the closure cap 1 also has a sealing lip 17.
- FIG. 3 shows a development of the inside of the closure cap from FIG. 2.
- the guideway 6 consists of four single individual partial guideways which are formed by four beads 11.
- Each bead has a locking edge 9 which limits the unscrewing movement.
- the course of the beads 11 can be seen more precisely in FIG.
- Each bead 11 has two sections 13a, 13c with an incline and two horizontal sections 13b, 13d without an incline.
- the first horizontal section 13d defines a sealing position and the second horizontal section 13b defines a gas discharge position.
- the two horizontal sections 13b, 13d are connected to one another by the section 13c which extends with an incline.
- the latching edge 9 is arranged at the end 14 of the second horizontal section 13b remote from the first horizontal section 13d on the surface of the beads 11 facing the cap base.
- the section 13a with an incline defines the beginning of the thread and, thanks to its inclined position, facilitates the insertion of the retaining cams at the beginning of the screwing-on movement.
- the inclined section 13c generates the sealing pressure required for the seal with a sealing device (not shown) (for example a sealing lip 17 as shown in FIG. 2 and / or a liner seal or an outer seal, not shown).
- the distance between two adjacent beads 11 is not constant over their entire length. In an area 16 of the inclined sections 13a, 13c, the distance between the beads 11 is greater than in an area 15 with the horizontal sections 13b, 13d. This is necessary so that a somewhat elongated retaining cam (cam 7 as shown in FIG. 1) does not become jammed in the region 16 of the sections 13a, 13c which run with an incline.
- the minimum distance between two adjacent beads 11 is defined by the locking edge 9.
- FIGS. 5a and 5c show a development of the inside of a closure cap according to the invention with schematically shown placed retention cams 7 of a container closure in a sealing position ( Figure 5a) and in a gas release position ( Figure 5b).
- the horizontal sections 13d engage the retaining cams 7.
- an end section 20 follows each of the horizontal sections 13d.
- the end section 20 is here also designed as a bevel, so that a precisely defined guideway 6 is formed together with the bevel section 13c underneath. In principle, however, it is conceivable to form the end section 20 vertically.
- the retaining cams 7 are guided from the sealing position shown in FIG. 5a to the venting position shown in FIG. 5b.
- the entire closure cap that is to say also the sealing device (not shown here) is raised by the sections 13c which run with an incline, which results in gas release when the internal pressure is increased.
- the movement of the retaining cams 7 is limited by the locking edges 9.
- the beads 11, with their surface facing the cap bottom are pressed firmly against the retaining tabs 7 by the internal pressure. Only when the internal pressure has been completely reduced can the closure cap be pressed down slightly, which allows the locking edges 9 to be overcome.
- FIG. 13d An alternative exemplary embodiment of the design of the guideway 6 is shown in FIG.
- the first horizontal section 13d has a recess 18 on its side facing away from the cap bottom, which recess is vertically aligned with the latching edge 9.
- the width of the guideway 6 between the two horizontal sections 13b, 13d can be reduced so that it corresponds to the thickness of the retaining cams on the outside of a container. With such an arrangement, these shark tenocken guided precisely through the guide track 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU19202/97A AU1920297A (en) | 1996-04-04 | 1997-03-26 | Container sealing cap |
EP97906974A EP0894071A1 (de) | 1996-04-04 | 1997-03-26 | Verschlusskappe zum verschliessen eines behälters |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH880/96 | 1996-04-04 | ||
CH88096 | 1996-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997037901A1 true WO1997037901A1 (de) | 1997-10-16 |
Family
ID=4197335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000126 WO1997037901A1 (de) | 1996-04-04 | 1997-03-26 | Verschlusskappe zum verschliessen eines behälters |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0894071A1 (de) |
AU (1) | AU1920297A (de) |
CA (1) | CA2248681A1 (de) |
WO (1) | WO1997037901A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29803275U1 (de) | 1998-02-25 | 1998-04-16 | Trw Fahrwerksyst Gmbh & Co | Verschluß für Behälter |
EP1732817A2 (de) * | 2004-04-08 | 2006-12-20 | The Glad Products Company | Entlüftbarer drehverschlussbehälter |
EP3263474A4 (de) * | 2015-02-27 | 2018-10-24 | Yoshino Kogyosho Co., Ltd. | Behälter mit schraubkappe |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3741421A (en) * | 1971-05-10 | 1973-06-26 | J Wittwer | Safety locking cap |
US4553678A (en) * | 1984-06-21 | 1985-11-19 | Thorsbakken Arden L | Tamper indicating container safety cover |
DE8903630U1 (de) * | 1989-03-22 | 1989-08-24 | Coolike-Regnery GmbH, 64625 Bensheim | Behältnis mit Halterung |
US5135124A (en) * | 1991-05-09 | 1992-08-04 | Hoover Universal, Inc. | Pressure lock bayonet closure |
WO1995005322A1 (en) * | 1993-08-13 | 1995-02-23 | Beeson And Sons Limited | Container closure assembly |
GB2288390A (en) * | 1994-04-15 | 1995-10-18 | Harold Birkett | Screw cap for container |
-
1997
- 1997-03-26 AU AU19202/97A patent/AU1920297A/en not_active Abandoned
- 1997-03-26 EP EP97906974A patent/EP0894071A1/de not_active Withdrawn
- 1997-03-26 WO PCT/CH1997/000126 patent/WO1997037901A1/de not_active Application Discontinuation
- 1997-03-26 CA CA002248681A patent/CA2248681A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3741421A (en) * | 1971-05-10 | 1973-06-26 | J Wittwer | Safety locking cap |
US4553678A (en) * | 1984-06-21 | 1985-11-19 | Thorsbakken Arden L | Tamper indicating container safety cover |
DE8903630U1 (de) * | 1989-03-22 | 1989-08-24 | Coolike-Regnery GmbH, 64625 Bensheim | Behältnis mit Halterung |
US5135124A (en) * | 1991-05-09 | 1992-08-04 | Hoover Universal, Inc. | Pressure lock bayonet closure |
WO1995005322A1 (en) * | 1993-08-13 | 1995-02-23 | Beeson And Sons Limited | Container closure assembly |
GB2288390A (en) * | 1994-04-15 | 1995-10-18 | Harold Birkett | Screw cap for container |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29803275U1 (de) | 1998-02-25 | 1998-04-16 | Trw Fahrwerksyst Gmbh & Co | Verschluß für Behälter |
EP1732817A2 (de) * | 2004-04-08 | 2006-12-20 | The Glad Products Company | Entlüftbarer drehverschlussbehälter |
EP1732817A4 (de) * | 2004-04-08 | 2009-04-29 | Glad Products Co | Entlüftbarer drehverschlussbehälter |
EP3263474A4 (de) * | 2015-02-27 | 2018-10-24 | Yoshino Kogyosho Co., Ltd. | Behälter mit schraubkappe |
US10597200B2 (en) | 2015-02-27 | 2020-03-24 | Yoshino Kogyosho Co., Ltd. | Screw cap container |
Also Published As
Publication number | Publication date |
---|---|
AU1920297A (en) | 1997-10-29 |
EP0894071A1 (de) | 1999-02-03 |
CA2248681A1 (en) | 1997-10-16 |
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