KR20030051715A - Container-closure arrangement - Google Patents

Abstract

The container 10 constituting the container lid-device according to the invention comprises a base 13, a circumferential wall 15, a rim 16 forming an upper edge of the wall and surrounding the opening of the container, and A flange 19 is formed integrally with the wall below the horizontal plane of the rim and surrounds the wall. The lid 11 constituting the container-lid apparatus has a central portion 25 and skirts 26, 29, 31 arranged to fit the opening of the container from above, and the skirts 26, 29, 31 is integrally formed with the central portion when the lid is fitted to the container, and is arranged to surround the rim 16 and engage with the rim 16. One portion 34 of the skirt is configured to bond to engage with the flange 19, or one portion 50 of the skirt is an upward opening of the flange 19 when the lid is fitted to the container. It can be press fit within 52.

Description

Container-Lip Device {CONTAINER-CLOSURE ARRANGEMENT}

A container-lid device of the same type as the present invention must generally meet many requirements that are apparently incompatible. Static loads and dynamic forces resulting from the dropping and / or the movement of the loads of the vessels should provide a container-lid seal that is retained even when attempting to break the seal. However, the container-lid seal should be flexible enough to allow for easy removal and replacement of the lid if necessary at the same time. In addition, the container-lid device is intended to provide the ability to confirm subsequent opening of the product and any openings that may occur before the product contained in the container is delivered to the end consumer. However, the opening confirming structure should not be so inflexible that it prevents the legitimate removal of the lid from the container.

Several container-lid devices have been developed to meet these requirements.

The container disclosed in US Pat. No. 5730309 has a lid with a bead rim and a peripheral skirt. The skirt is formed with an inwardly facing ledge, the ledge being arranged to mate with a removable interlocking engagement with the rim bead, the skirt being removed from the container until the tearing strip is removed. And a removable rupture strip that functions to prevent removal of the lid. The apparatus disclosed in US Pat. No. 5730309 provides multiple engagements between the lid skirt portions and the inner engagement portions of the container wall.

The container disclosed in French patent 2599004 has a lateral peripheral flange projecting outward from the container, the lid disclosed in the patent having a circumferential skirt, when the lid is fitted to the container. There is also a corresponding side circumferential flange extending from the skirt to align with the container. The circumferential flanges may be connected together by ultrasonic welding. In addition, when the circumferential skirt is attached to the central portion of the lid, a separation line is provided on the lid. This separation line allows the lid to be removed from the vessel, but the device is configured such that once the lid is removed it cannot be resealed to the vessel.

U.S. Patent No. 4434907 discloses a container and lid in a somewhat similar manner to French Patent No. 25599004, which has a lateral flange projecting to the side, the lid having a corresponding lateral projecting circumferential flange and The flanges are connected together in alignment. In the device, a fragile line is provided on the side flange of the container to allow separation of the lid from the container. However, once detached, the lid may be remounted in the container such that beads on the inner wall of the skirt may be pressed over the remainder of the flange of the container (i.e. remain after separation of the container from the cutout area). ).

The vessel disclosed in Australian Patent No. 682096 granted to the applicant of the present invention has a bead rim and a circumferential flange projecting outwardly from the vessel at a lower position than the rim. A lid may be mounted to the vessel with a first circumferential skirt, the vessel being provided with an inward ledge on the skirt disposed to interlock with the rim beads. A recess having a second skirt connected to the first skirt at a frangible connection and extending downward from the fragile connection, the lower end being formed in a flange of the container when the lid is mounted to the container ( they are placed in recesses.

The present invention relates to a container-lid device with an opening confirmation function, wherein the lid can be optionally resealed.

1 is a perspective view of a first assembled container-lid device according to the invention.

FIG. 2 is a cross sectional elevational view of a portion of the device as seen in the direction of section 2-2 of FIG.

FIG. 3 is a partial view of the device shown in FIG. 2 but includes a modification of the device.

FIG. 4 is another partial view of the device shown in FIG. 2 but includes other variations of the device.

FIG. 5 is a partial view similar to FIG. 2 but showing a second assembled container-lid device.

FIG. 6 shows a partial view of the device of FIG. 5 or an alternative embodiment of the device. FIG.

The present invention therefore provides a container-lid device comprising and consisting of a container and a closure,

(i) the container comprises a base, a peripheral wall, a rim forming an upper margin of the wall and surrounding the opening of the container, and the rim A flange surrounding the wall from below and integrally formed with the wall,

(ii) the lid is a central portion arranged to fit the opening of the container from above, and a first skirt portion arranged to enclose the rim when the lid is fitted to the container and integrally formed with the central portion And a third skirt portion, optionally having a third skirt portion sequentially extending from the first skirt portion, wherein the second skirt portion is at the first skirt portion or at the provided third skirt portion. Is formed to be removable, or is formed to be removable at both the first and third skirt portions;

The device may comprise (a) one of the second or third skirt portions, the portion adjacent the flange, being press fit into the upward opening of the flange when the lid is fitted to the container; or

(b) the third skirt portion is configured to be connectable to the flange when the third skirt portion is provided.

In (a), by the opening facing upwards, the part of the skirt can be press fit into the opening at the same time as the lid itself is fitted into the container. The term "push-fitted" is a term that includes interference fit, snap fit, and friction fit. The device of this configuration prevents the insertion of a thin bladed tool between the container and the lid skirt portions, thus preventing the contents of the container from being opened by the tool.

(b) a tool with a thin blade between the skirt and the lid portions of the lid, by fitting the lid and for example filling of the lid, by engagement of the flange of the lid and the third skirt portion. Insertion of the will also be blocked, thereby preventing the contents of the container from being opened by the tool.

Preferably in (a) a remote end of the second or third skirt portion is press fit into the flange opening, the remote end being defined by a projecting rim, the projecting rim Has an enlarged distal head in cross section, and an adjacent narrowing neck connecting the head to the remote end, the flange opening being an upwardly facing annular channel formed in the flange. and an circumferentially facing annular channel extending therewith, the channel including an annular protrusion in the opening therein and beyond so that the rim head is press fit into the channel. Or preferably in (b) the third skirt portion is arranged and shaped to adhere to the flange by welding or adhesive bonds, the flange optionally having a circumferential rebate; Is formed.

In (b) the connection can be made by a tack welding process or by a continuous seam welding process using, for example, an ultrasonic welding process.

Preferably the second skirt portion is detachable from the first and / or third skirt portion at a relatively narrow fragile connection between the skirt portions, and the separation allows the lid to be detachable from the container. .

Preferably the annular channel is located in the circumferential contact groove of the flange. Preferably said projecting rim extends downwardly from said third skirt portion. Preferably said projecting rim is snap fit into said annular channel.

Preferably a bead is integrally formed with the rim to surround the rim, preferably the first skirt portion engages the bead at a ledge, the ledge is located within the first skirt portion and the first It is formed integrally with the one skirt portion and is arranged to be in a position interlocking engagement with the bead.

Preferably the third skirt portion has an inner circumferential wall, the inner circumferential wall having a diameter larger than the inner circumferential wall of the second skirt portion. In such a case, preferably the second skirt portion has a lower marginal edge which is shaped to be positioned adjacent to the wall portion of the container flange which is radially located inside the silver groove. Is placed.

Preferably a ledge is disposed in the circumferential wall of the container and integrally formed with the circumferential wall, in which case the lid is formed with an inner skirt, the inner skirt being fitted with the container and For example, when a force is exerted on the lid due to the stacking of filled containers, it is arranged to lie in the rim of the container and to engage the ledge. The inner skirt may be disposed adjacent the inner surface of the circumferential wall of the container or the inner skirt may be disposed obliquely with respect to the circumferential wall of the container.

Preferably the central portion of the lid is formed with a well having a base and a circumferential wall, in which case the lid can be formed with radially extending webs. It is interconnected with the circumferential wall of the recess and the inner skirt.

In (b) the protruding rim may be connected to the flange of the container in a manner similar to the manner in which the second or third skirt portion is connected to the flange of the container.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a first embodiment of a container-lid device according to the invention consists of a container 10, a lid 11 and a pivotable handle 12 connected to the container. The container and lid may be molded from polypropylene or high density polyethylene. The handle may be formed of steel or plastic material. The container can be molded to any desired size and will generally have a volume capacity of about 4 to 25 liters.

The container 10 has a base 13 that is sized to be positioned within a well 14 of the lid, so that the plurality of container-lid devices can be stacked on top of the other device. The container also has a circumferential wall 15, with a rim 16 forming an upper margin of the wall 15 and surrounding the opening of the container.

Bead 17 is integrally formed with and surrounds rim 16. The bead has an undersurface 18 which connects with the outer surface of the circumferential wall 15.

An annular flange 19 is formed integrally with and surrounds the peripheral wall 15 of the container. The flange is located vertically below the horizontal plane of the bead 17 and has two wall parts 20 and 21. The wall portion 20 is inclined with respect to the circumferential wall 15 of the container, and the wall portion 21 is suspended from the outer edge of the inclined wall portion. According to the invention, a rebate 23 is formed in the flange at the junction of the two wall parts 20 and 21.

A ledge 24 is located in the circumferential wall 15 of the container and is integrally formed with the circumferential wall. The ledge 24 is disposed on a horizontal plane lower than the horizontal plane of the recess 14 of the lid.

The lid 11 has a central portion 25, the central portion 25 comprising the recess 14 and shaped and arranged to a size suitable for top fitting the opening of the container 10. The first skirt portion 26 is integrally formed with the central portion 25 and has a size suitable for enclosing and engaging the beads 17 of the container. An annular ledge 27 is disposed in the first skirt portion 26 and integrally formed with the first skirt portion, wherein the ledge 27 interlocks with the lower surface 18 of the vessel bead 17 when the lid is fitted to the vessel. It is arranged to be in the engaging position.

The first skirt portion 26 has an internal surface 28 that is ragged outward from the ledge 27 and exhibits a smooth curved contour. The inner surface 28 is formed to receive the fingers of the person to remove the lid from the container. The inner surface 28 is also shaped to facilitate sliding cross-engagement of the lid and the container when the lid is pushed onto the container.

The vessel bead 17 is also shaped to facilitate sliding engagement between the lid and the vessel when the lid is pushed onto the vessel.

The second skirt portion 29 is suspended in the skirt portion 26 and is vulnerably connected to the skirt portion 26 via an integrally formed thin connecting web 30. Further, in the first embodiment, the third skirt portion 31 forms an extension of the second skirt portion 29 and is vulnerably connected to the second skirt portion by an integrally formed web 32.

The third skirt portion 31 is shaped and shaped to be suitable for placement in the recess 22 of the flange 19, so that when the container is filled with material and the lid 11 fits into the container 10 for the first time, Three skirt portions 31 may be coupled to the vessel flange 19.

The engagement between the third skirt portion 31 and the flange 19 may be formed by injecting a sealant (not shown) or bonding the third skirt portion 31 into the recess 22. The latter method can be accomplished by forming a temporary welding process or a continuous seam junction. Welding can be effectively achieved by several methods, for example by rotating the vessel-lid device about the vertical axis of the vessel and delivering the electrically heated air from the nozzle 33 into the junction region. have.

The third skirt portion 31 has an inner circumferential wall 34 having a diameter larger than the inner circumferential wall 35 of the second skirt portion 29. The resulting lower edge 36 of the second skirt is located above the inclined wall portion 20 of the flange 19.

In the first embodiment described so far, when the third skirt portion 31 is connected to the flange 19, a lever or other tool is used between any of the skirt portions 26, 29 and 31 and the vessel wall 15. Cannot be inserted. Thus, the lid can only be removed after the second skirt portion 29 has been removed first, which leaves an indication for an attempt to remove the lid from the container.

As shown in FIG. 1, the second skirt portion 29 may be formed in the form of a tear strip and may be provided with a tear tab 37.

3 shows a slight modification of the device shown in FIG. 2. As can be seen in the figure, the third skirt portion 31 is formed with a ledge 38 which is shaped and shaped to fit within the complementary recess of the silver groove 22. Such a device eliminates the need to connect the lid to the vessel and / or the need for a reinforced mechanical connection between the lid and the vessel.

As shown in FIG. 2, the lid 11 is integrally formed with the inner skirt 40, the inner skirt 40 is located in the container rim 16 and the container when the lid 11 fits into the container 10 and is loaded in the ridge direction. It is positioned and dimensioned to bear on the ledge 24. The inner skirt 40 and the first (outer) skirt portion 26 form a channel 41, wherein the rim 16 is located within the channel 41 and the channel 41 is an elastomeric gasket-type sealant. May be partially occupied by (not shown).

The inner skirt 40 is connected to the circumferential wall 42 of the lid recess 14 by radially extending webs 43.

FIG. 4 shows a modification of the device shown in FIG. 2, in which the inner skirt 40 extends in an oblique direction between the central region 25 of the lid and the ledge 24 of the container. In this case a second inner skirt 44 is provided defining the inner edge of the channel 41 and sealed against the inner surface of the peripheral wall 15 of the container. Again, webs 43 (not shown in FIG. 4) may connect wall 42 to the inner skirt 40 and / or the second inner skirt 44.

Like parts in FIGS. 5 and 6 are denoted by like reference numerals, and a second embodiment of the container-lid apparatus according to the present invention will be described with reference to FIGS. 5 and 6.

In a second embodiment, the skirt device 48 comprises a first skirt portion 26, a second skirt portion 29 and any third skirt portion 31. The second or more preferably the third skirt portion 31 is modified to include a downwardly projecting rim 50. Additionally, the silver groove 22 is modified to define an upwardly facing annular groove 52, wherein the rim 50 is generally defined by a press fit such as a snap fit, an interference fit or a friction fit. There can be accommodated in the groove 52.

With particular reference to FIG. 6, it is shown that the protruding rim 50 comprises a distal head portion 54 which is enlarged in cross section and a relatively narrow neck portion 56 which connects the head portion to the skirt portion 31. It is also shown that the annular groove 52 has a relatively narrow opening formed by a lower region 58 relatively wide in cross section and an annular ledge 60 projecting inwardly. The device is configured such that the head and neck portions 54, 56 are suitably placed in the grooves except for inserting or removing the rim 50 from or into the grooves as shown in the figures, wherein the head portions 54 and And / or the ledge 60 must be deformed to a degree sufficient to allow 50 of the rim to be inserted into the groove 52. An inclined surface 62 is formed on the lower region of the rim to assist with this insertion and the ledge 60 passes along the rim during rim insertion. Modifications to either or both of the rim 50 and the ledge 60 provide a characteristic snap fit. However, other suitable fitting devices can be used including interference fits or friction fits.

In the second embodiment, the second and third skirt portions can be replaced with only the second skirt portions. For example, the skirt device 48 may comprise a first skirt portion 26 and a skirt portion 31 vulnerably connected to the first skirt portion (eg, as shown in FIG. 6).

However, it is further preferred that the device 48 comprise three skirt portions, since in that case the second skirt portion 26 can form a tear strip that is easily removable.

Before or after placing the rim 50 in the groove 52, a coupling between the third skirt portion 31 and the flange 19 can be formed, including forming a bond between the outer walls of the rim and the inner walls of the groove. As described above, sealants, temporary welding, thermal bonding, ultrasonic bonding, and the like may be used.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

The present invention relates to a container-lid apparatus, which also provides an opening confirmation function and may optionally be resealed. The container-lid device according to the invention can be used to accommodate various kinds of materials.

Claims (14)

In the container-lid device comprising a container and a lid, (i) the container has a base, a circumferential wall, a rim forming an upper edge of the wall and surrounding the opening of the container, and a flange formed integrally with the wall surrounding the wall under the rim; , (ii) the lid is a central portion arranged to fit the opening of the container from above, and a first skirt portion arranged to enclose the rim when the lid is fitted to the container and integrally formed with the central portion And a third skirt portion, optionally having a third skirt portion sequentially extending from the first skirt portion, wherein the second skirt portion is at the first skirt portion or at the provided third skirt portion. Is formed to be removable, or is formed to be removable at both the first and third skirt portions; The device may comprise (a) one of the second or third skirt portions, the portion adjacent the flange, being press fit into the upward opening of the flange when the lid is fitted to the container; or (b) the third skirt portion is configured to be connectable to the flange when a third skirt portion is provided. The container-lid device of claim 1, wherein the remote end of the second or third skirt portion of (a) is press fit into the flange opening. The flange of claim 2, wherein the remote end is defined by a protruding rim, the protruding rim having a distal head extending in a cross section, and an adjacent narrowing neck connecting the head to the remote end, the flange The opening is an upwardly opposite annular channel formed in the flange and extends around therewith, the channel comprising an annular protrusion at the opening therein and beyond such that the head of the rim is press fit into the channel. Container-lid device, characterized in that the losing. The container-lid device of claim 1, wherein in (b) the third skirt portion is arranged and shaped to adhere to the flange by bonding or adhesive bonding. 5. A container-lid apparatus according to claim 4, wherein the flange is formed with a circumferential silver groove, and the third skirt portion is arranged and shaped to be located in the silver groove. 6. The device of claim 1, wherein the second skirt portion is configured to be separated from the first and / or third skirt portions at a relatively narrow fragile connection between the skirt portions. 7. Characterized in that the container-lid device. 4. A container-lid apparatus according to claim 3, wherein the flange is formed with a circumferential silver groove in which the annular channel is located. 8. A container-lid device according to claim 3 or 7, wherein the projecting rim extends downwardly from the third skirt portion and snaps into the annular channel. The device of claim 1, wherein a bead is integrally formed with the rim and surrounds the rim, the first skirt portion engages the bead at a ledge, and the ledge is the first skirt. A container-lid device positioned in a portion and integrally formed with the first skirt portion and disposed in a position to interlock with the bead. 8. The second skirt portion according to claim 5, wherein the third skirt portion, when provided with the third skirt portion, has an inner circumference wall having a diameter larger than an inner circumference wall of the second skirt portion, and wherein the second skirt The portion has a lower edge, the edge being shaped and arranged to be positioned adjacent to the wall portion of the vessel flange disposed radially inside the silver groove. The lid of claim 1, wherein a ledge is located in a circumferential wall of the container and integrally molded with the circumferential wall, the lid is formed with an inner skirt, wherein the inner skirt is A container-lid device fitted to the container and positioned to engage with the ledge and to be positioned within the rim of the container when force is applied to the lid. 12. The container-lid device of claim 11, wherein the inner skirt is disposed to be adjacent to an inner surface of the circumferential wall of the container or at an angle to the circumferential wall of the container. The web according to claim 11 or 12, wherein the central portion of the lid is formed with a recess having a base and a circumferential wall, the lid extending radially in connection with the circumferential wall of the recess and the inner skirt. Container-lid device, characterized in that formed with a. 4. The container-lid device of claim 3, wherein the projecting rim is coupled to the flange of the container in a manner similar to the manner in which the second or third skirt portion is coupled to the flange of the container in (b). .