FR2666566A1 - Packaging can - Google Patents

Abstract

The packaging can (1) is of essentially cylindrical or prismatic shape and consists of a circular, oval or polygonal bottom (2), a can body (3), preferably made of synthetic material, and a circular, oval or polygonal lid. A plurality of spring tabs (6), folded towards the inside of the can, is disposed on the upper edge (5) of the can body. The edge (7) of the lid (4) comprises a groove (8) adapted to the size of the tabs (6). The latter serves to lock the tabs (6) ensuring that the lid, after having been placed on the can, is fixed there. The can body and also at least part of the lid of the can are preferably made from PET synthetic material which is recyclable and friendly to the environment. A tearing line (10, 21) on the can body on the one hand facilitates elimination and makes it easy to separate the synthetic materials and the cardboard and, on the other hand, constitutes a part of a security closure.

Description

1 -

PACKAGING BOX

  The present invention relates to a packaging box comprising a lockable closure which can be obtained from an environmentally friendly material.

  which can be easily closed by the user.

  According to the configuration, respectively according to the presence of a preformed tear line on the body of the box, the package which has been once closed cannot be opened again, without at least part of the packaging must not be destroyed (security closure), or the box can be opened any number of times and closed again by locking. Similar boxes, at least partly made of synthetic material, are already known. These boxes include a part like the cardboard bottom or the cover made of a piece of cardboard. For this, it is however necessary that the body of the box is provided with a border before laying the cardboard bottom, in order to

  give it a solid foundation.

  normally take a lid, which will be put on the body of the box so that it can be opened and closed again several times For this reason, it is generally necessary that, when closing,

  the cover is fixed to the body of the box, for example

ple by a self-adhesive strip.

  Therefore, an object of the invention is to provide boxes improved compared to those of the prior art, the disposal of which is compatible with the environment, which allow easy handling by the user and the lid

  lockable has guaranteed closure.

  An object of the present invention is therefore a packaging box as defined in -2-

claim 1.

  The new construction of this box makes

  possible the use of environmentally friendly materials-

  and recyclable like PET as well as cardboard, which can be obtained by recycled paper The box is preferably cylindrical, parallelepiped or prismatic and preferably slightly

  conical The cover and the bottom are for example circular

  cular, oval, triangular, square, rectangular or polygonal Where applicable, existing angles

  can be rounded By the spring-loaded tabs

  ribbed inwards, arranged on the upper edge

  laughing at the box, a lock is caused when

  closing the lid Depending on the number and the width

  spring tabs, cover locked

  ble can no longer be opened without destroying the box, respectively tearing of the perforations in the cover, or else the lockable cover can be opened by a slight effort and again closed and

Locked.

  The perforations in the side wall of the box are used to form a part which tears the first time the box is opened (formation of a closure with guarantee of first opening), to easily cut the box after use or for both goals mentioned, as explained later in the

description.

  Preferably, at least the box body constituting the side wall of the box and possibly including folds, is made of a transparent material, allowing the consumer to see the contents thereof. Alternatively, the body of the box can also be made of cardboard For this, a material comprising a sealable layer will be preferred Depending on desires, a cardboard box body can also be 3 - provided with windows in synthetic material The bottom is generally cardboard since normally the transparency is not necessary here The cover can be made, as desired, either of a piece of perforated cardboard, or completely made of synthetic material It is also possible, according to this shape

  of execution, to provide perforations on the cover

  key for opening the box The film of material

  synthetic, from which a plurality of boxes is obtained

  naked, preferably has a thickness of 0.2 to 0.3 mm and consists of PET, PVC, PP or OPS, or for reasons of environmental protection in PET For boxes, the boxes according to the invention are in shape

  slightly conical, to be stackable and for

  see be supplied by the manufacturer in the form of batteries.

  To solve the problem of catching boxes in the stack, each box includes a means

  stop in the bottom region, which limits the im-

  cation of two stacked boxes and thus prevents a

  jamming and / or scratching of the can bodies.

  The box body is generally obtained in

  a sheet, from which its opposite broad sides are

  will be welded to form a cylindrical shell

  or a piece of conical casing On the box part

  te obtained in this way, the bottom is glued, being arranged in the side wall so that the

  side wall only protrudes by less than about 1 mm.

  On the edge of the bottom side of the bottom, a hot melt glue is applied by means of a nozzle The mass of adhesive applied in the form of a bead with a diameter of 1-3 mm touches the same

  time the bottom and side wall of the box; this cor-

  donation of hardened glue serves on one side to connect the bottom of cardboard or another material with the side wall of the box and on the other side replaces a border of -4 -

body of the box.

  The cover is formed in such a way that it can be accommodated in the body of the box and has a profile on its edge, which allows a spring closure of the spring tabs directed inwards and arranged on the edge of the box Depending on the number of spring tabs on the circumference of

  the box and their reciprocal distance, the box cannot

  can no longer be opened without being destroyed, respectively without the perforations provided for the opening being torn, or else it can be opened by

a slight effort.

  If the edge of the box body is lined with

  spring tabs, for example for a circumference-

  1 cm of about 48 cm with about 20 tabs with a length of 1 1.5 cm and a width of about 0.5 cm, the closure functions as a safety closure which cannot be opened without damaging the box Yes

  the number of spring tabs is reduced, their width

  geur and their separation distance being increased, the resistance of the spring box closure decreases

  and the box can be opened without damage by protruding

  a resistance force This resistance from

  greenness can be predetermined by an appropriate choice

  the number, size and distance of the strips

  spring watchers, possibly by simple tests Such a circular box, with a perimeter of 29 cm includes 6 tabs with a length of approximately

  1.7 cm and a width of about 0.5 cm; she can re-

  be open and closed again.

  For a box according to the invention without closure-

  security, (i.e. the cover can

  repeatedly be closed and opened again), the report

  carrying the length of the spring tabs relative to

  port at the intermediate space between two tabs is -

  from 4 to 8:10, preferably 6:10.

  For a box according to the invention with closure

  security, (i.e. the cover does not

  can, after the first closing, be opened without

  damage or without tearing a perforation) the above ratio is from 12 to 17:10, preferably 3 2.

  The box cover can be made entirely

  of the same synthetic material or it may include a cardboard piece with the perforations

  In the second case, the outer edge includes

  taking the profile is exclusively made of synthetic material For a box with safety closure, the cover includes a perforated line along

  the opening provided to take out the contents

  vercle can either be provided with a glued grip tab or be perforated in such a way that by

  depression of a tab a small opening

  duise, allowing the user to remove the intended closure outwards with a finger and at the same time

  time to separate the perforated part.

  When the contents of the box are used,

  the box can be disposed of without problem, the use

  teur first tears off the cover, then separates the side wall of the bottom of the box by the perforations

  planned along a perimeter line of this ma-

  Finally, for a cardboard and synthetic material box, the cardboard parts are separated and the synthetic materials can be recycled. At the same time, the volume of materials to be eliminated is reduced to a minimum. The invention is explained more precisely

  below from the description of a form of e-

  execution corresponding to the drawing with the figures o: FIG. 1 is a representation in 6 - perspective of a box according to the invention with a cover comprising a cardboard piece,

  figure l A is a representation in pers-

  pective of a box according to the invention without cover, which further comprises a preformed tear part, forming a tear-off part at the first opening, FIG. 1 B is the same representation as that of FIG. 1 A, the tear-off part at the first opening being torn off, FIG. 1 C is the tear-off part at the first opening torn away from the box of FIG. 1 B, FIG. 1 D is a partial section along line II of the box of FIG. 1, the FIG. 2 is a partial section of a box according to the invention comprising a cover,

  FIG. 3 is a partial section of the neck

  Figure 4 is a part of a body of a box according to the invention, and Figure 4 A is a part of another body.

of box according to the invention.

  In Figure 1, a box 1 according to the invention is shown in perspective, with the box bottom 2, the box body 3, and the cover 4 The box bottom 2 is preferably made of cardboard, other materials

  can also be considered The box body 3 con-

  preferably consists of a plastic film

  transparent, normally made of recyclable PET, and is

  nor at its upper edge of a plurality of spring tabs 6 These tabs are folded inwards so as to form an acute angle relative to the wall of the box The box cover 4 comprises an outer edge 7 which comprises a groove 8 directed outwards The piece of cardboard 11 is arranged in this outer edge of the cover, which comprises 7 - a perforation 12 and the folding hinges 16 and 17 By pushing in the tab 13, a small

  opening through which the valve limited by the perfora-

  tion 12 can be lifted in order to release the contents of the box The box body 3 comprises two perforated lines 10 along opposite generatrices, used by the user to eliminate the box by separating the

  body 3 in two equal sheets, generally rectangular

  and at the same time to separate the bottom of the cardboard box 2 from the synthetic materials.

  opposite cardboard 11 included in the cover is re-

  bonded to the edge of synthetic material 7 by a few points of hot-melt adhesive or by a few points

  soldering or sealing, making both

  ties can easily be separated from each other.

  On the box body 3, we see the weld 14 by the-

  which the two wide sides 19 and 20 opposite of the part are connected We also see the stop means in

  projection 15 which rises from the wall ex-

  inward, which prevents jamming

  when stacking the slightly conical boxes.

  FIG. 1A represents a box similar to that of FIG. 1, however without cover. It additionally comprises a part 23 which can be torn off at the first opening, separable by a pre-formed tear line 21 It comprises a width which is from one to two the width of the tabs 6 Its length

  is an eighth to a quarter of the perimeter of the box.

  The tear-off part 23 can be pulled by the tear-off tab 22, so that the box can be opened without further damage and closed again. However, there are no fixed limits.

  as for the formation of the tearable part, for example-

  ple it can also have an essentially triangular shape, the tear line being drawn 8 - rectilinearly from the lower end of the tear tab 22, at an angle of 60 to 455 relative to the axis of the box, on the edge of the box. Figure 1 B shows the same box as Figure l A, however the tear-off part 23 being torn off Some of the tabs 6 have also been torn off with the tear-off part The missing tabs allow only a cover (not shown)

  can be opened and closed several times By the ab-

  sence of the tearable part at the first opening 23 highlighted by a striking color, a box having already been opened can be easily recognized

by the user.

  Figure l C shows the tearable part 23 torn from the box of Figure 1 B and comprising

  some tabs 6 and the tear tab 22.

  A partial section of the box in FIG. 1 along line II is shown in FIG. 1 D In particular, the contact between the bottom of the box 2, preferably made of cardboard, and the side wall 3 is visible They are held together by the cord

  glue 9 (hot melt glue) This provision replaces

  places a border on the bottom side of the wall

of the box.

  2 shows a partial section of a box according to the invention with the locking of a cover 4 A groove 8 is arranged in the edge 7 of the cover 4, directed outwards, which is intended to receive the tongues to spring 6 If the cover 4 is pressed into the box body 3, the spring tabs 6 lock in the groove 8 and a simple opening is prevented, so that the box can only be opened by its destruction or

  by opening the opening valve 11a, by tearing

  9 - re provided perforations The opening valve lia

  is connected to the cover by the hinge 16 and is ac-

  transferable the first time after tab 13 of

  the opening was pressed by the user For em-

  catch the reopening of the whole cover 4, this one

  includes the covering edge 18, which overlaps

  vre the slot between the box body and the cover and hides the spring tabs 6 We can also see on the section how the cardboard part is arranged in the edge 7 of synthetic material of the cover Preferably this cardboard piece is fixed at edge 7

  by one or more point of glue or sealing.

  Figure 3 shows a partial section of a

  alternative embodiment of a cover without par-

  cardboard tie Here we find the 16 'fold as well as the

  valve lia in the central surface of the cover, the-

  which is made of the same synthetic material as the

cover edge 7.

  Figure 4 shows the part of a body of

  box 3 of a slightly conical box The piece com-

  takes two perforated lines, which face each other when

  the box is mounted On the upper edge, the lan

  spring guets 6 are shown, which will be

  beaten inward around fold 18, making

  if an acute angle with the wall of the box For assembly

  block the box, the wide sides 19 and 20 will be super

  installed and connected by a seal Light limits-

  curves come from what the box body represents in this case, strictly speaking the

  outer surface of a truncated cone (conical shape).

  Figure 4A shows the same part as Figure 4, however comprising a tearable part 23 defined by the tear tab 22 and the line of

tear 21.

-

Claims (14)

  1-Packaging box (1), consisting of a bottom (2), a box body (3) and a suitable cover (4), characterized in that the upper edge (5) of the box body (3) comprises a plurality of spring tabs (6) folded towards the inside of the box, and the cover (4) having an edge (7) on which a groove (8), adapted to the size of the tabs, directed from the corner of the cover to the outside, used to lock the tabs (6), and in that the cover is firmly held on the   box to be applied, and in that at least one li-   a tear (10,21) is provided on the body of box (3).   2-packaging box according to claim   1, characterized in that it has an essential form-   cylindrical, the bottom (2) and the cover (4) being circular or oval.   3-packaging box according to claim 1, characterized in that it has the shape of a cube, a rectangular parallelepiped or a prism, the bottom (2) and the cover (4) having the shape a rectangle,   a square or polygon corresponding to the outline.   4-Packaging box according to claim   1, characterized in that the can body is   killed in cardboard coated with a sealer or in synthetic material.   -Boxing box according to one of claims 1 to 4, characterized in that the bottom (2) is made of cardboard. he -   6-Packaging box according to one of the claims   cations 1 to 5, characterized in that the cover (4) is entirely or partly made of synthetic material.   7-Packaging box according to one of the claims   cations l to 6, characterized in that the surface of the bottom (2) is smaller than that of the cover (4) and   in that the box body (3) has a co-shaped   or shrinking, making the box te in the open state is stackable.   8-packaging box according to claim 7, characterized in that at a determined distance from the bottom (2), a stop means, such as an encrusted stop projection, is arranged, which limits the penetration of boxes stacked one inside the other and avoids the jamming of boxes.   9-Packing box according to one of the claims   cations 1 to 8, characterized in that the bottom (2) dis-   placed in the box body is fixed by gluing to   hot (9) with box body without border.   10-packaging box according to claim   1, characterized in that the box body (4) comprises   takes two perforated lines (10) as tear lines   rure, so that the packaging can be easily re-   volume reduction before elimination, by tearing of the   ring, separation of the box body and detachment from the bottom. il-Packaging box according to one of claims 1 to 10, characterized in that the cover   is made of synthetic material and includes a 12 - tie (11) in cardboard.   12-Packaging box according to one of the res-   dications 1 to 11, characterized in that the cover (4) comprises a perforated line (12) which is   placed around the opening provided to remove the   held and an entry opening (13).   13-Packaging box according to one of the res   dications 1 to 12, characterized in that the box body (3) consists of a piece of a film of synthetic material, of which the two wide sides (19,20)   which overlap are connected by a weld (14).   14-Packaging box according to one of the res-   dications 1 to 13, characterized in that the parts in   synthetic material are PET, PVC, PP or OPS.   -Boxing box according to one of the res-   dications 1 to 14, characterized in that it comprises,   on the upper edge of the box body, 5 to 8 tabs   spring loaded (6) and that the ratio of the length of   do tongue relative to the intermediate space and 12 to 5:10 p.m.   16-Packaging box according to one of the res-   dications 1 to 14, characterized in that it comprises,   on the upper edge of the box body, 12 to 25 lan-   spring guets (6) and that the ratio of the length of a tongue relative to the intermediate space and from 12 to 17:10.   17-Packaging box according to one of the res-   dications 1 to 14, characterized in that a tear line (21) is arranged on the box body (3), 13 - being located near the upper edge of the box,   and in that a tear tab is thus provided   sée that the tear line (21) near the upper edge of the box body (3) can be easily torn, making possible a slight opening of the cover. 18-packaging box according to claim 17, characterized in that a tear line (21)   is arranged on the box body (3), which is essential   parallel to the upper edge of the box and   which is one-eighth to one-quarter the length of the perimeter   be from the box and a distance from the edge of   the box going up to twice the width   tabs (6), the tear line (21) al-   lant from one side to the edge of the box and on the other side being connected to a tear tab (22) and thus forming a tearable part 23 during the first opening.