DE3110749A1 - Unbreakable lid, in particular for a plastic packaging forming a box - Google Patents

Abstract

The invention relates to an unbreakable lid for a, in particular square, plastic packaging which forms a box and has a plurality of small, independent and releasable tongues which interact with the rim of the box after a U-shaped enclosure of the periphery with devices provided on the small tongues which guarantee closure in the position of the lid on the box, characterised in that the said lid (1) forms at each of its rounded corners (1<2>) releasable and projecting tabs (1<3>) which are arranged in the continuation of the outer rim (1<5>) of the lid (1), the said tabs having an ascending profile with an outer rounded profile starting from their outermost connection points up to the central plane, the said tabs being provided on the inside with devices (M) which due to pressure allow the lid (1) to engage progressively on the rim (2<1>) of the box body (2) and allow it to clip in, the release of the tabs in relation to their support being effected by lifting the tabs in relation to the body of the box (2), as a result of which complete and direct opening of the entire opening region (1<6>) being brought about in the horizontal plane. <IMAGE>

Description

Invulnerable lid, especially for one

Plastic packaging forming a box Priority: 21-03-1980 France No. 80 06 909 and 08-08-1980 France No. 80 18 079 The invention relates to an invulnerable lid, especially for a plastic packaging that forms a box.

The subject matter of the invention relates to the technical Areas the packaging and the equipment.

It is known, lid, closure lid or the like. With in their plane to manufacture molded extensions and releasable straps with respect to their support> which fit on boxes in such a way that it is necessary to use the releasable straps to access the contents of the box.

Experiments have shown that this type of equipment which guarantee the inviolability of the packaging when closed, have certain disadvantages in the case of, in particular, square packings, if these used and in places of very low temperature (of the order of - 200 C), such as B. deep freezers, cold rooms or the like. Be kept. It was in particular the fragility of the edible ribbons found, which is very easily brittle but it is also necessary to completely peel off one tape, several to perform successive gripping and tearing manipulations, with the tearing takes place in a direction parallel to the edge of the lid.

In addition, these releasable tapes are difficult to grasp out, and with increased force these break off partially.

The present invention has for its object to be an invulnerable To create a lid that does not have the disadvantages mentioned above, wherein an in numerous attempts corresponding to the conditions of use of such packaging invulnerable lid is proposed in a new design, which is Can easily be adapted to the body of the box.

According to the invention, an invulnerable one is used to solve the problem Lid for a particularly square plastic packaging, which is a box forms and has several small, independent and detachable tongues that connect with the Edge of the box after U-shaped encircling the circumference with ar the small tongues provided means cooperate, which the lock in the position of the ceiling'l 'on the box, suggested which one indicated by is that said cover is detachable and protruding at each of its rounded corners Forms tabs, which are arranged in the extension of the outer edge of the lid are, the said tabs starting from their outermost connection points to the middle level, an ascending profile with an outer rounded one Have a profile, the nipped tabs are provided with devices on the inside, the progressive engagement of the lid on the edge of the box body by means of druff and enable it to be clipped in, with the tabs releasing with respect to theirs Support obtained by lifting the tabs in relation to the body of the box whereby the complete and immediate breaking up of the totality of the Break-up area in. The hor i zon t a I en level is caused.

According to a further characteristic of the invention, the cover has devices on which on the one hand its centering in relation to the container and on the other hand stacking them on top of each other with other lids, especially with regard to their storage, enable.

According to a further feature of the invention is on each Tabs an elongated opening is provided on the outermost, protruding from the mantle The edge of the lock engages to form a lock, opening the Box is made by lifting the tabs, causing their detachment in the amount of their Opening and takes place according to the intended tear lines on both sides of their opening.

Based on the drawings, preferred embodiments are to be used as an example the lid according to the invention will be explained in more detail.

In the drawings, Fig. 1 shows a perspective view of a Lid according to the invention before 'its placement and its adaptation to a Container, especially a box.

Fig. 2 shows a perspective partial view according to FIG. 1, wherein the packaging is closed and locked so that it cannot be broken.

Fig. 3 shows a partial perspective view, which in particular represents the internal arrangement of a corner of the lid.

FIG. 4 shows a section along the line 4-4 of FIG. 2.

Fig.; shows a similar section to FIG. 4, but after hooking of the little tongues of the interlocking wink.

Fig. 6 shows in a partial section the stacking of several Lid according to the invention.

Fig. 7 is a partial perspective view showing a lid according to the invention before it is placed on the box body according to a modified one Embodiment represents.

Fig. 8 is a partial perspective view showing the internal arrangement represents a corner of the lid.

Fig. 9 shows a partial section on an enlarged scale, which represents a corner of the lid according to the invention.

Fig. 10 shows a partial section on an enlarged scale, which one represents locked lid according to the invention.

Fig. 11 shows a partial section on an enlarged scale, which one Represents cover in the course of the opening.

From Fig. 1, the cover 1 according to the invention results before his Put on a container R, which is generally the body of a box 2 of forms an arbitrary shape that corresponds to that shape of the cover 1.

In a known manner, the body of the box 2 forms on the periphery of his upper part a jacket 21 which has a bead with an inverted U-shaped cross-section forms (Figs. 4 and 5).

The Ueckel 1 also forms one in a known manner edge the box 2 complementary, U-shaped periphery edge 1 to allow the insertion of the mentioned cover 1 to he possible.

According to the invention, the lid 1 has rounded at each of its Corners 12 profiled tabs 13, which with respect to the body of the lid accordingly a tear line 16 are detachable and aligned downwards. These tabs 13 have starting from the outermost points of the connection to the middle surface, a profile on, which increases to an outer rounding, as can be seen from the Figures of the drawings results. These tabs are according to a different characteristic corresponding to an angle d obliquely with respect to the perpendicular surface of the surfaces of the body of the box 2 2 offset. The tabs are also designed in such a way that that the user inevitably has them in their mid-plane corresponding to their bisection line of the angle, and to ensure its detachment, the user lifts the Tongue in relation to the box body, creating a tear-off effect on the whole of the tear-off area, which causes the flap to become detached with respect to its carrier made possible on one occasion.

These tabs 13 have to facilitate detachment at their connection point with the peripheral edge 11 of the lid a perforation or simply a tear line 16, (Fig. 1 and 2). This tear line is essentially horizontal and in half the height of the peripheral wall 11 and opens at its outermost parts on the inner peripheral edge the border ii the outer curved edge 15 of the border 1 of the lid 1 can, starting from the corners in which the tabs 13 are formed, accordingly the same levels, like the one of the lugs mentioned at an angle be offset (Fig. 3 and 4).

According to a further characteristic, each of the small tongues 13 is inside provided with devices M, which are designed so that on the one hand the progressive Engagement of the lid 1 on the jacket 21 of the box body 2 and on the other hand its subsequent clipping is made possible by pressure. This setting is such that, except for the tearing away of all of the corner tabs 13, the packaging remains invulnerable (Fig. 4) and that, when each tab is detached (Fig. 5), the Lid normal I is reusable to be placed on box 2 in a detachable manner to become.

For this purpose, each rounded corner flap 19 forms a protruding one Stiffener 1, of which an access ramp perpendicular to the middle plane of the tongue 18 increases, which thins in the direction of the inner rounded edge of the tongue 13 (Fig. 3). The ramps 1 allow the progressive engagement of the lid to to its final clipping by means of the stiffeners 17, which with the lower part of the outer, curved edge 1 of the peripheral edge 1 of the lid cooperate (Fig. 4).

According to a further characteristic, the cover 1 has protruding Lugs 110 which are essentially in the extension of each rounded corner of the inner, curved 9 1 th edge 1 of the peripheral edge 11 1 ieqen. This perpendicular Approaches running towards the horizontal plane of the cover allow centering of the deck in connection with the inner walls of the box body (Fig. 5) and allow the stacking of several lids according to the same way Mark of the invention (Fig. 6). This proves to be particularly useful for that. storage the lid, which cannot tip over in this way.

From Fig. 7 there is a cover 3 according to the invention before his Fastening on the body 4 forming a box, in particular on the upper one Jacket 41, which forms a circumferential bead with a U-shaped cross-section.

The cover 3 also forms a U-shaped position in a known manner Peripheral edge 31 to cover the bead 41 when the box is closed.

The cover 3 has a profiled outside at each rounded corner Tab 32, which is aligned protruding down the edge 31 as well as in Inside, i.e. beyond the edge 31, a small circular arc-shaped tongue 33 for Clip the cover onto the jacket 41 (FIG. 10). Each tab 32 forms the interior a stiffener 36 of which 3, perpendicular and in the middle of the face of the tab an access ramp 37 extends in the direction of the lower rounded edge 38 of the tab is tapered.

According to a further characteristic, each further tab has on its Base, i.e. approximately at the level of the outer end of the rim 31, an elongated opening 34 which extends over substantially the entire width of the flap on the base extends. It is clear that the locking of the cover 3 on the jacket 41 is easy by engaging the openings 34 in the outermost raised side 42 of the bead 41 takes place through the elasticity of the components in connection with the "clip effect" (Fig. 10).

To open the box, it is sufficient to pull each flap (arrow f in Fig. 11) to loosen it from the bead 41 in a first step and then in a second step as a result of the folding and provided on both sides of the opening 34 To tear off tear lines 35 more or less, as can be seen from FIG. The advantages result from the description. In particular, the following should be emphasized: - the lightness of grasping the small tongues that can be detached from the corner; - the ease and Speed of clipping the lid onto the container; - the speed of the Unlocking the lid of the container to harness the small, independent Tongues of the corner as opposed to a detachable tape that is on the entirety of the outer periphery of the lid is provided; - the new aesthetics of the lid that is provided with the small, rounded tongues; - the possibility of stacking the said cover.

L e r s e i t e

Claims (7)

PATENT CLAIMS 1. Inviolable cover for a particularly square one Plastic packaging that forms a box and several small, independent ones and having releasable tabs which are U-shaped around the edge of the box of the scope cooperate with the devices provided on the small tongues, which ensure the closure in the position of the lid on the box, d u r c h e k e n n e i n e i n e that said cover (1) on each of its rounded corners (12) detachable and protruding tabs (13) formed in the Extension of the outer edge (15) of the lid (1) are arranged, the called tabs, starting from their outermost connection points to the middle Level, an ascending profile with a outer rounded profile have, wherein the said tabs are provided with devices (M) on the inside, which by pressure the progressive engagement of the lid (1) on the edge <2) of the Allow the box body (2) and its clipping, with the loosening of the tabs with respect to their carrier by lifting the tabs with respect to the fuselage the box (2) is obtained, which allows the complete and immediate breaking on the entirety of the break-up area (1 6) in the horizontal plane will. 2. Inviolable lid according to claim 1, d a d u r c h g e k e n n 2 ¢ i c h n e t that each tab (32) is essentially an elongated one at its base Has opening (34) which, when closed, on the outer, raised edge (42) of the shell (41) engages to effect the locking of the lid, the The box is opened by lifting the tabs (32), which removes them at the level of their opening (34) and corresponding to the Relßlinien (35) causes both sides their opening (24) are provided. 3. Inviolable lid according to claim 1 d a d u r c h g e k e n n z e i c h n e t that the tabs (13) obliquely corresponding to an angle α are offset with respect to the vertical plane of each side of the box. 4. Inviolable lid according to claim 1 and 3, d a -d u r c h g e it is not indicated that the outer, curved edge (1) of the circumferential border (1) of the lid, at the corners of which the small tongues (13) are formed, at an angle corresponding to the same plane as that of the said small tongues (13), offset is. 5. Inviolable lid according to claim 1, d a d u r c h g e k e n It should be noted that the tear line (16) is essentially horizontal and halfway Height of the peripheral wall (11) runs and with its outermost parts on the lower The peripheral edge (1) of the border (11) opens. 6. Invulnerable lid according to any one of claims 1 and 2, d a d u r c h g e k e n n n z e i c h n e t that each rounded tongue (13) (32) inside a stiffener (17) forms, of which perpendicular and in the central plane of the tongue an access ramp (1 8) (37) emanates, which is rounded towards the lower Edge (14) (38) of the tongue thinned to the progressive engagement of the lid until it is finally clipped into place through the stiffeners, which with the lower part of the outer, curved edge of the peripheral border of the lid cooperate. 7. Inviolable lid according to any one of claims 1, 2, 3 and 4, d a d u r c h 9 e k e n n n z e i c h -n e t that he is essentially in the extension of each rounded corner of the inner, curved edge of the perimeter border has protruding lugs (110) (33) perpendicular to the horizontal plane of the lid, which on the one hand the centering of the cover (1 - 3) in connection with the inner Walls of the box body and other part of the stacking of several lids in connection with the inclined tongues (13 - 32).