JP6732956B2 - Container, method - Google Patents

Description

The present invention relates to a container for bundled consumer goods. This container has particular application as a container for elongated smoking articles such as cigarettes.

Smoking articles such as cigarettes and cigars are generally packaged in a rigid hinge lid container having a box and a lid coupled to the box about a hinge line extending across the rear wall of the container. Such hinge-lid containers are usually constructed from a single layered cardboard blank. In use, the lid rotates about the hinge line to open the container and gain access to the stack of smoking articles located in the box.

A stack of smoking articles located in a box is typically wrapped in an inner liner of metallized paper, foil or other flexible sheet material. To access the stack of smoking articles in the inner liner of an unopened container, the consumer typically first opens the lid of the container and removes the pre-perforated upper portion or pull tab of the inner liner.

EP 2155568 discloses a hinged lid container having a sealed bundle, which is automatically opened when the lid of the container is opened. However, sealed bundles are relatively expensive and require non-standard machinery for high speed fabrication. It would be desirable if there were a simple possibility to make an automatically opening pack. One object of the present invention is to provide a container for consumer goods which simplifies the opening of the container.

According to a first aspect of the invention there is provided a container for consumer goods, wherein the container comprises a housing comprising a box and a lid, wherein the lid is hinged to the box along a lid hinge line, The lid also includes a front wall. Further, the container includes a bundle of consumer goods located within the housing. The bundle comprises an upper wall protruding from the box, and here the bundle further comprises an inner liner that is folded around the consumer article to form the bundle. The inner liner forms an envelope fold on the top wall of the bundle. According to the invention, the envelope fold is an inner liner upper front flap, wherein the inner liner upper front flap is subordinate to the inner panel front panel and an inner liner upper rear flap, wherein the inner liner upper rear flap is Dependent on the rear panel of the inner liner. The inner liner upper front flap and the inner liner upper rear flap are arranged such that the inner liner upper front flap and the inner liner upper rear flap at least partially form an overlap.

In addition, the inner liner comprises a front tear-away section that is dependent on the inner liner front panel along the front weakness line, where the front tear-off section forms part of the inner liner upper front flap. Further, the inner liner comprises a posterior tear section that is dependent on the inner liner posterior panel along the posterior line of weakness, where the posterior tear section forms part of the inner liner upper posterior flap within the overlap region. In addition, the inner liner further comprises a rear flap adhesive region within the overlap region, where the rear flap adhesive region permanently attaches the front tear section to the rear tear section in the overlap region. Thus, the opening flap assembly is made so that the opening flaps allow access to consumer goods stored in the bundle.

According to the present invention, by simply providing two lines of weakness to the front and back and applying an adhesive, the opening flap is a standard inner liner bundle used by consumers to open and close the bundle. Created from At the same time, additional protection is provided on the outside of the opening flap, for example because of the filter end of the smoking article outside the access opening created by the opening flap assembly, so as to provide additional protection for consumer goods. A protective inner liner is retained around the front upper portion of the bundle. In addition, a more visible inner liner is retained on the front wall of the inner liner bundle, as compared to conventional hinge lid packs for smoking articles (e.g., Flip-top(R) type), such as It can be used to convey information to consumers. In some embodiments, the adhesive area extends to an overlap outside the area of the rear tear section and the front tear section. In this way, the rest of the envelope folds remain attached to one another even after opening the opening flap assembly. In such an embodiment, the remaining adhesive portion of the envelope fold creates a well-defined access opening. Furthermore, the connection between the rest of the envelope folds increases overall the structural strength of the bundle and thus enhances the protection of consumer goods stored within the bundle.

Any suitable technique or combination of techniques may be utilized to attach the front tear-off section to the rear tear-off section, for example by adhering the front tear-off section to the rear tear-off section with a permanent adhesive, a peelable adhesive or a microsuction structure. .. The adhesive may be applied to the front tear-off section prior to contacting the rear tear-off section. Alternatively, or in addition, the adhesive may be applied to the rear tear section prior to contacting the front tear section.

Depending on the shape of the line of weakness, the aperture flap assembly can take any suitable shape or combination of shapes and can have any suitable dimensions. The weakened line may be continuous or discontinuous (eg, perforated). Furthermore, the frail line may be formed using any suitable technique or combination of techniques, such as laser cutting or mechanical cutting (eg, die cutting, kiss cutting). The line of weakness may include any suitable depth in a direction transverse to the inner and outer surfaces of the wrapper. The frail line preferably has a depth of at least about 90 percent of the total thickness of the wrapper. More preferably, the frail line has a depth of about 100 percent of the total thickness of the wrapper. After the line is formed, any suitable percentage of material may remain along the weak line. Preferably, about 5 percent to about 25 percent of the inner liner material remains along the weak line after the line is formed.

The bundle may be more securely sealed along the line of weakness until the container is first opened. This may extend the shelf life of the consumer goods contained within the container.

The inner liner may include any suitable material or combination of materials and may include any suitable number of layers. The inner liner is preferably formed of metal foil or metallized paper. The inner liner may be formed as a laminate of metallized polyethylene film and liner material. The inner liner can have a thickness of about 10 microns to about 50 microns, with a thickness of about 20 microns to about 80 microns being preferred. In addition, the inner liner may be provided with a print-receptive topcoat.

The opening flap assembly is separated from the inner liner along the line of weakness with the opening of the lid and hinged to the rest of the inner liner along the opening flap assembly hinge line. As described above, it is preferably attached to the inner surface of the lid by the front adhesive area. This advantageously allows the consumer to open the container and inner liner in a single operation. In addition, attachment of the opening flap assembly to the lid ensures that the opening flap assembly retracts to its original position when the pack is opened, potentially obstructing the access opening. prevent. The opening flap assembly is preferably attached to the lid in such a way that the opening flap assembly has an S-shape when viewed from the side. The S-shape is attractive and, for example, in embodiments of the pack according to the invention in which the pack is first opened and the lines of weakness still have to be broken, the S-shape is additionally a smooth and continuous lid. Promotes open mouth. Under these circumstances, the S-shape is superior to the C-shape of the opening flap assembly, which requires simultaneous breakage of the line of weakness along its entire length, for example during the initial opening movement.

Any suitable technique or combination of techniques may be utilized to attach the front tear-away section to the inner surface of the lid, such as by permanent adhesive, releasable adhesive or a micro-suction structure to attach the front tear-away section to the inner surface of the lid. To glue. Adhesive may be applied to the front tear-off section prior to contacting the inner surface of the lid. Alternatively or additionally, the adhesive may be applied to the inner surface of the lid prior to contacting the front tear section.

The container can take any form suitable for containing a consumer good. For example, as previously mentioned, the container may be a hinged lid container having one or more hinged lids connected to a box containing consumer goods. In one or more embodiments, the container can be a slide-and-shell container having an inner slide for housing consumer goods mounted within an outer shell. If the container is a slide and shell container, the outer shell or inner slide may include one or more hinge lids. The container, inner frame, bundle, and outer inner liner may be formed of any suitable material including, but not limited to, cardboard, cardboard, plastic, metal, or combinations thereof. The cardboard may weigh from about 100 grams/square meter to about 350 grams/square meter.

The rear tear section is preferably below the front tear section in the overlap region. Further, the rear tear section preferably extends from the bundle back wall to the inner liner upper rear flap. Such a design enlarges the access opening of the bundle. This method allows easier access to the consumer goods contained within the bundle.

The posterior line of weakness preferably comprises a C-shaped end section in the bundle back wall terminating the line of weakness on either side. The C-shaped end section of the frail line prevents tearing along the frail line further toward the bottom of the back wall of the bundle. Thus, a well-defined position of the hinge of the opening flap assembly is achieved.

The front tear-off section preferably extends from the bundle front wall to the inner liner upper front flap. With such a design, the access opening of the bundle may be enlarged, allowing easier access to the consumer goods contained within the bundle. In particular, the combination of the features of the rear tear section extending to the rear wall can create an opening that allows access to consumer goods from three sides. This may be particularly advantageous when trying to remove rod-shaped articles from a bundle, such as a smoking article.

The lateral width of the front tear-off section is preferably greater than the lateral width of the rear tear-off section. This prevents the rear tear section from catching on the edge of the opening in the inner liner in the overlap region when the front upper flap of the inner liner is above the rear upper flap of the inner liner. It is particularly advantageous.

In addition, this is particularly advantageous because it creates a larger opening in front of the bundle. Therefore, access to consumer goods within the bundle is improved.

A further advantage is that the alignment between the envelope fold parts at the top of the bundle is simplified. This is especially important in the application of adhesives. For example, when applying adhesive to the outside of the inner section of the envelope fold with the smaller rear tear section, the outer section of the envelope fold has a larger front tear-off section, so the adhesive is less likely to stick out of the side. Low.

The inner liner preferably further comprises an envelope fold on the bottom wall of the bundle. Alternatively or additionally, the inner liner further comprises envelope folds on one or more sidewalls of the bundle. At least a portion of the outer surface of the bundle is preferably permanently affixed to a corresponding portion of the inner surface of the rear wall of the box. At least a portion of the outer surface of the bundle is preferably permanently affixed to a corresponding portion of the inner surface of the front wall of the box. This may overall improve the structural strength of the bundle.

The container may also include an inner frame located within the box. The inner frame may be arranged between the bundle and the front wall of the box or may be arranged in the bundle. When placed in the bundle, the inner frame is positioned so that the front wall of the bundle is between the inner frame and the front wall of the box. The inner frame includes a front wall and a pair of opposing side walls. The inner frame is preferably U-shaped. As used herein, the term "U-shaped" means a shape that includes three parts, where the first part and the third part are parallel to each other and the second part. They extend in the same direction forming a right angle.

The front wall of the inner frame is preferably arranged such that the front wall of the bundle is between the front wall of the inner frame and the front wall of the box. Advantageously, an inner frame with a large surface area provided adjacent to the front wall of the bundle increases the structural strength of the container.

The inner frame preferably includes a cutout at the top of the front wall. The cutouts preferably substantially correspond to the access openings and are provided to allow easier access to and withdrawal of consumer goods in the bundle. If the inner frame includes a cutout, the height of the inner frame is defined as the distance from the bottom of the inner frame to the cutout.

The inner frame may include inner stiffeners inside the bundle. The inner stiffener, when present, preferably comprises at least one layer of material, such as cardboard similar to the cardboard utilized to manufacture the inner frame.

The container according to the invention may be in the form of a rectangular parallelepiped having a longitudinal right angle edge and a transverse right angle edge. Alternatively, the container may have one or more longitudinal rounded edges, transverse rounded edges, longitudinal chamfered edges, or transverse chamfered edges, or a combination thereof. May be included. For example, a container according to the present invention may include, but is not limited to, one or more of the following features.
One or two longitudinal rounded or chamfered ends on at least one of the front and rear walls.
One or two transverse rounded or chamfered ends on at least one of the front and rear walls.
One longitudinal rounded end and one longitudinal chamfered end on the front wall, or one transverse rounded end and one transverse end on the rear wall Chamfered end of direction.
One longitudinal rounded end and one longitudinal chamfered end on the front wall and one transverse rounded end and one transverse on the rear wall Chamfered end of direction.
One or two transverse rounded or chamfered ends on the front wall and one or two longitudinal rounded or chamfered ends on the front wall Department.
Two longitudinal rounded or chamfered ends on the first side wall, or two transverse rounded or chamfered ends on the second side wall.

If the container comprises one or more rounded ends, the blank forming the container may include three, four, five, to form each rounded end within the assembled container. It is preferred to include 6 or 7 creasing lines or scoring lines. The creasing lines or scoring lines may be on the inside of the container or on the outside of the container. The creasing lines or scoring lines are preferably spaced from each other by about 0.3 mm to 4 mm.

The spacing of the scoring lines or creasing lines is preferably a function of the thickness of the layered blank. The spacing between the scoring lines or creasing lines is preferably about 0.5 to about 4 times the thickness of the layered blank.

When the container includes one or more chamfered ends, the chamfered ends preferably have a width of about 1 mm to about 10 mm, preferably about 2 mm to about 6 mm. In one or more embodiments, the container is a double formed by three parallel scoring lines or creasing lines that are spaced such that two distinct chamfers are formed on the edges of the container. Chamfering may be included. If the container comprises chamfered ends, the chamfer may be formed by two parallel scoring or creasing lines in the layered blank forming the container. The scoring lines or creasing lines may be placed symmetrically with respect to the edge between the first wall and the second wall. Alternatively, the scoring lines or creasing lines may be arranged such that the chamfer extends deeper into the first wall of the container than it does into the second wall of the container. May be arranged asymmetrically with respect to the edges between.

Alternatively, the container may have a non-rectangular cross-section, for example polygonal (such as triangular or hexagonal) or oval, semi-elliptical, circular or semi-circular.

The container according to the invention has particular application as a pack for elongated smoking articles such as cigarettes, cigars or cigarillos. Of course, by proper choice of its dimensions, the container according to the invention may be designed for different numbers of conventional size, king size, super king size, slim or super slim cigarettes.

By proper selection of its dimensions, the container according to the invention can be designed to hold different total numbers of smoking articles or different arrangements of smoking articles. For example, by proper selection of its dimensions, the container according to the invention can be designed to hold a total of 10 to 30 smoking articles.

In addition to containing a stack of smoking articles, the container may further include other consumer items such as matches, lighters, fire extinguishing means, breath fresh, or electronic devices. Other consumer goods may be attached to the outside of the container, housed in the container with the smoking article in another compartment of the container, or a combination thereof.

The housing lid is hinged to the box and is adapted to be operated between open and closed positions. In the open position, the consumer has access to consumer goods located within the housing. The lid is hinged to the box along a hinge line that extends across the rear wall of the container. The term "hinge line" means the line through which the lid can pivot to open the container. The hinge line may be, for example, a fold or creasing line in the panel forming the rear wall of the housing.

The terms “front”, “rear”, “top”, “bottom”, “side”, “top”, “bottom” used to describe the relative positions of the components of a container , Refers to a container in an upright position, having a lid at the upper end and having consumer goods that can be loaded and unloaded from the upper end of the front. The terms "left" and "right" may be used to refer to the side wall of the container when the container is viewed from the front in its upright position.

The term "inner surface" is used throughout this specification to mean the surface of a component of an assembled container that faces the interior of the container (eg, consumables facing) when the container is in the closed position. Used for.

The term "outer surface" is used throughout this specification to mean the surface of a component of a container that faces toward the outside of the container. For example, in one or more embodiments, the container includes an inner frame that includes an outer surface that faces the outer housing of the container and an inner surface that faces the bundle of containers.

All scientific and technical terms used herein have meanings commonly used in the art unless otherwise specified. The definitions provided herein are provided to facilitate understanding of certain terms frequently used herein.

According to a further aspect of the invention, the invention is directed to a bundle of consumer goods, wherein the bundle comprises a top wall, and here the bundle comprises an inner liner forming an envelope fold on the top wall of the bundle. Further provided is an inner liner that is folded around the consumer article to form a bundle. Therefore, the envelope fold is an inner liner upper front flap, wherein the inner liner upper front flap depends on the inner panel front panel, and an inner liner upper rear flap, wherein the inner liner upper rear flap is the inner liner upper rear flap. And a subordinate to the rear panel, such that the inner liner upper front flap and the inner liner upper rear flap at least partially form an overlap. The inner liner includes a front tear-away section that is subordinate to the inner liner front panel along a front weakness line, where the front tear-off section forms part of the inner liner upper front flap. Further, the inner liner comprises a posterior tear section that is dependent on the inner liner posterior panel along the posterior line of weakness, where the posterior tear section forms part of the inner liner upper posterior flap within the overlap region. The inner liner further comprises a rear flap adhesive area located within the overlap area, wherein the rear flap adhesive area permanently attaches the front tear-off section to the rear tear section at the overlap area to provide the opening flap assembly. Where the opening flaps allow access to consumer goods stored in a bundle. The advantages and possible features of further embodiments of such bundles have already been mentioned above.

The bundle preferably includes a front adhesive area near the front weakness line on the front wall of the bundle. This can be used to attach the opening flap assembly to the lid wall of the surrounding container, as described above.

According to a further aspect of the invention there is provided a method of forming a bundle for consumer goods, the method comprising providing a single charge of consumer goods and providing an inner liner, The inner liner comprises a front tear-off section and a rear tear-off section, providing adhesive in the rear adhesive area, and making a single-load consumer product such that an envelope fold is created at the top of the stack. Wrapping around with an inner liner to form a bundle such that the front tear-away section and the rear tear-off section overlap at the rear adhesive area. The method further includes adhering the front tear-off section and the rear tear-off section with a rear adhesive area to form an opening flap assembly.

A method comprises providing a container blank for a container comprising a box section and a lid section, providing adhesive to a front adhesive area on a front tear-off section of an inner liner, and assembling the container around a bundle. The process further includes the steps of attaching a front adhesive area to the lid section of the container inside the lid, opening the container lid to automatically access the access openings in the bundle covered by the opening flap assembly. It is preferable that the opening be made open.

Reference is now made to the drawings in which some aspects of the invention are illustrated.

1 is a schematic perspective view of an embodiment of a container in an open position in which the container includes a housing and a bundle disposed within the housing. FIG. 2 is a schematic top perspective view of the bundle of FIG.

1-2, a schematic perspective view of an embodiment of a container 10 for consumer goods and a bundle 40 disposed within the housing of the container is illustrated. The housing includes a box 14 and a lid 20 hingedly attached to the box 14 via hinge lines (not shown). The hinge line extends across the rear wall of the box 14 of the container 10 and acts to allow the lid 20 to move from the closed position to the open position as shown in FIG. The hinge line is located between the lid rear wall 24 and the box rear wall (not shown). The box 14 further includes a box side wall 16, a box front wall 12 and a box bottom wall (not shown). The lid 20 further includes a lid side wall 26, a lid top wall (not shown) and a lid front wall 22. Dependent on the lid front 22 along the fold is a lid front lower panel 28 that is folded 180 degrees into the lid and lies parallel to the lid front wall 22. The lower lid front panel 28 further includes a lid front wall contact area 29. The lid front wall contact area 29 may cover the entire area of the lid front lower panel 28 or a part of the lid front lower panel 28.

Inside the box 14, an inner frame 30 is arranged such that some components of the inner frame front wall can protrude from the box front wall 12, but in some embodiments, the inner frame front wall. Is entirely covered by the box front wall 12. The inner frame includes inner frame sidewalls 36 that can project from the box sidewalls 16, but in some embodiments one or both of the inner frame sidewalls 36 are entirely covered by the respective box sidewalls 36.

Bundle 40 at least partially defines an internal volume for containing consumer goods and includes a bundle top wall, a bundle side wall 46, a bundle front wall 41 and a bundle back wall (not shown). In one or more embodiments, the container 10 may include a bundle 40, such as a consumer item, disposed within, such as a smoking article. Bundle 40 includes an inner liner wrapped around a consumer item. The inner liner is made of barrier material(s) to protect the consumer goods before the container is first opened. The barrier material may be paper, metallized paper, metal foil or a laminate of plastic and metal. The inner liner material may be sealed or simply folded around the consumer item.

Referring to FIG. 2, a schematic perspective view of the bundle 40 of the containers 10 of FIG. 1 is illustrated. The inner liner forms an envelope fold on the upper wall of the bundle. The envelope fold includes an inner liner top front flap 42 and an inner liner top rear flap 44 that form an overlap 70 on the bundle top wall.

The inner liner further includes a front line of weakness 52 extending in a U-shape from the upper edge of the inner liner upper front flap 42 to the inner liner front wall to form an inner liner front tear-off section 50. The inner liner extends from the upper edge of the inner liner upper rear flap 44 to the inner liner rear wall and forms a pair of substantially parallel rear line tearing sections 60 between a pair of substantially parallel rear weakness lines 62. A further rear weakness line 62. The rear frail line 62 terminates in a C-shape (not shown) at the inner liner rear wall so that the lower end of the rear frail line 62 points to the top of the bundle. This prevents the tear from advancing to the back wall of the bundle when the rear weak line 62 breaks. The location of the C-shaped lower end of the rear weakness line 62 also defines the hinge area for the inner liner posterior tear section 60.

Any of the lines of weakness 52, 62 are provided by a perforation line or scoring line (eg, mechanically cut) provided to break along the lines of weakness 52, 62 when a sufficiently large force is applied Or laser ablation). The force required to break the lines of weakness 52, 62 is at least one-half of the force for breaking the inner liner material to accurately position the access opening created when the lines of weakness 52 or 62 break. It is preferable.

The overlap region 70 is provided with an aft flap adhesive area and at least the inner liner aft tear section such that the inner liner aft tear section 60 and the inner liner aft tear section 50 together form an opening flap assembly 80. Includes a permanent adhesive that adheres 60 to the inner liner front pullaway section 50. The rear adhesive area 64 may also extend further across the overlap 70, thus coupling the inner liner upper front flap 42 to the inner liner upper rear flap 44 and opening flap assembly 80 to open and bundle. The access opening is created along the frail lines 52, 62 when the contents of the item are exposed.

In the lower area of the outer opening flap assembly 80 is the front adhesive area 54. The front adhesive area 54 attaches the opening flap assembly 80 to the lid front wall contact area 29.

In use, when the container 10 is first opened by pivoting the lid 20 rearward, the opening flap assembly 80 is torn along the line of weakness 52 or 62 to open the access opening. Then, when the container is closed, the opening flap assembly 80 recovers the access openings within the inner bundle 40.

Claims (10)

A container for consumer goods,
A housing comprising a box and a lid hinged to the box along a lid hinge line, the lid including a front wall;
A bundle of consumer goods disposed within the housing, the bundle including an upper wall projecting from the box, and the bundle further comprising an inner liner folded around the consumer goods to form the bundle. And wherein the inner liner forms an envelope fold on the upper wall of the bundle,
The envelope fold is
An inner liner upper front flap, wherein the inner liner upper front flap is subordinate to a front panel of the inner liner,
An inner liner upper rear flap, wherein the inner liner upper rear flap is subordinate to a rear panel of the inner liner,
The inner liner upper front flap and the inner liner upper rear flap at least partially form an overlap, and the inner liner upper front flap at least partially overlies the inner liner upper rear flap. To form the overlapping portion,
The inner liner also includes a front tear-away section depending on a front panel of the inner liner along a front weakness line, the front tear-off section forming a portion of the inner liner upper front flap;
The inner liner comprises a rear tear section along the rear weakness line subordinate to the rear panel of the inner liner, the rear tear section forms part of the inner liner upper rear flap in the area of the overlapping portion ,
The inner liner further includes a rear flap adhesive region within the region of the overlap, the rear flap adhesive region permanently attaching the front tear-off section to the rear tear section at the overlap region. To create an opening flap assembly, the opening flap allowing access to consumer goods stored in the bundle,
The opening flap assembly is attached to the inner surface of the lid by a front adhesive area and when the lid is opened, the opening flap assembly is removed from the inner liner along the front and rear frail lines. Separated and hinged to the remaining portion of the inner liner along the opening flap assembly hinge line,
The container wherein the lateral width of the front tear-away section is greater than the lateral width of the rear tear-away section. The container of claim 1, wherein the rear tear section is below the front tear section at the overlap region. A container according to any one of the preceding claims, wherein the rear tear section extends from a bundle rear wall to the inner liner upper rear flap. 4. The container of claim 3, wherein the posterior frail line comprises a C-shaped end section of the bundle back wall terminating the frail line on either side. 5. A container according to any one of claims 1 to 4, wherein the front tear-off section extends from the bundle front wall to the inner liner upper front flap. 6. A container according to any one of claims 1-5, further comprising an inner frame disposed within the box, the inner frame including a front wall and a pair of opposed side walls. 7. The container of claim 6, wherein the inner frame is located between the front wall of the box and the bundle. The container according to any one of claims 1 to 7, wherein an inner reinforcing material is arranged in the bundle. 9. The container of any one of claims 1-8, further comprising the consumer good, the consumer good being stored in the bundle, the consumer good being a smoking article. A method of forming a container for consumer goods, comprising:
-Providing the consumer goods for one loading,
Providing an inner liner, the inner liner comprising a front tear-off section and a rear tear section, the lateral width of the front tear-off section being greater than the lateral width of the rear tear section;
-Providing adhesive in the rear adhesive area,
The single loading so that an envelope fold is made at the top of the stack so that the upper front flap of the inner liner at least partially overlies the upper rear flap of the inner liner and forms an overlap. Wrapping around the minute consumer goods with the inner liner to form a bundle, wherein the front tear-off section and the rear tear section overlap in the rear adhesive area,
Adhering the front tear-off section and the rear tear-off section at the rear adhesive area to form an opening flap assembly;
-Providing a container blank of a container comprising a box section and a lid section,
Providing adhesive to a front adhesive area on the front tear-away section of the inner liner;
-Assembling the container around the bundle;
-Attaching the front adhesive area to the lid section of the container inside the lid, opening the lid of the container to provide access to the bundle covered by the opening flap assembly Automatically opening the opening.

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