FR2632931A1 - Container with improved closure - Google Patents

Abstract

The container is a cylinder 1 which is not a cylinder of revolution and has an oblong cross-section. Its internal lateral wall 3 is angularly offset with respect to its external lateral wall 2 and it is extended by a skirt 10 carrying two portions of threading 13 intended to cooperate with two complementary portions of tapping of a cap which can slide over the skirt. The cap is screwed onto the skirt 10. The container can be used as a cream jar.

Description

 The present invention relates to a container closed by a cover, the container having a sealing and closing skirt, the outer side wall of one of the two skirt and cover elements being arranged to cooperate with the inner side wall of the other.

 Containers of this type are well known, starting with jars of cosmetic cream. Generally the container, or the jar, is cylindrical in revolution just like its closure cover. In this case, suitable closing means comprise a thread, or a few portions of protruding thread, on the skirt and a thread, or a few portions of hollow thread, on the hood, or vice versa, for screwing the hood. on or in the pot. Screwing is indeed a simple and practical method of closing.

There is also a very similar method of closing, known as bayonet.

 As soon as a container no longer had a generally cylindrical shape of revolution, its closure by screwing posed a problem. This problem took all its acuity when, for example, we wanted to give the pot a generally oblong shape, with a skirt extending the pot, therefore of the same shape, for reasons of simplicity of manufacture, and the cover also of the same general shape, in front of, by its side wall, extend that of the pot for reasons of comfort and aesthetics. So the screw closure was excluded.

 The present invention therefore aims to provide a container with improved closure, not necessarily cylindrical in shape of revolution, allowing its closure by a cover following a simple rotational movement.

 To this end, the present invention relates to a container closed by a cover, the container having a sealing and closing skirt, the external lateral wall of one of the two skirt and cover elements being arranged to cooperate with the wall. inner side of the other, characterized in that said outer and inner side walls are not of revolution and these two side walls are shaped so that one fits into the other, and can be relatively pivoted therein to ability to turn hood on skirt.

 Thus, the closure of the container of the invention is effected by simple rotation of the cover on the container.

 Advantageously, the pivoting of one of said side walls can take place from an open position to a closed position, by sliding two zones of one of the two walls onto two zones of the other, the walls respective exterior and interior sides of the two skirt and hood elements being respectively provided with cooperation means extending along the sliding zones. Thus, the establishment of the cover on the container, before closing, to a part of the clearance of the sliding zones, can only be carried out in a practically predetermined position; as for the closing rotation, it takes place only over a very small angular distance, that of the tolerated pivoting, which is a guarantee of maneuverability.

 The fact that the closing and therefore the opening are effected by rotation in one direction and in the other, in the case of a pot and a cover of generally oblong shape, these opening and closing operations are 'find it easier thanks to a better grip.

 Advantageously, the means of cooperation of the respective external and internal lateral walls of the two skirt and cover elements comprise, on each of the two external and internal lateral walls, in each of the sliding zones, a portion of projecting net, the one of the thread portions of one of the walls cooperating with one of the thread portions of the other of the walls in the manner of two tapping and threading portions.

 In the preferred embodiment of the container of the invention, the outer side walls of the container and of the cover have an oblong shape with two perpendicular planes of symmetry, common to both in the closed position, position in which the outer side wall of the cover extends the outer side wall of the container, and the sealing and closing skirt, also oblong, has two planes of symmetry perpendicular and offset angularly with respect to those of said outer side walls by an angle substantially equal to the angular length sliding zones, therefore at the relative pivoting angle of the container and the cover.

 In this case, and advantageously, the sealing and closing skirt of the container extends its inner side wall.

The invention will be understood with the aid of the following description of the preferred embodiment of the container of the invention, with reference to the accompanying drawings, in which - Figure 1 is a top view of the container of the invention; - Figure 2 is a sectional view of the container of Figure 1, along its longitudinal plane of symmetry II-II; - Figure 3 is a sectional view of the container of Figure 1, along its transverse plane of symmetry III-III; - Figure 4 is a side view of the container of Figure 1, along arrow F; - Figure 5 is a bottom view of the closure cap of the container of Figure 1 ;; - Figure 6 is an inverted sectional view of the cover of Figure 5, along its longitudinal plane of symmetry
VI-VI, and - Figure 7 is an inverted sectional view of the cover of Figure 5, along its transverse plane of symmetry VII-VII.

 In Figures 1 - 4 is shown a container, or pot, 1 intended to contain all kinds of products, solid, in bulk or not, or liquids, but preferably a cream and generally a cosmetic product. The pot 1 has an annular section, parallel to its bottom 4, of generally oblong shape, substantially elliptical, with an outer side wall 2 and an inner side wall 3. The outer side wall 2 is a cylindrical surface but not of revolution. I1 is the same for the inner side wall 3. The outer side surface 2 has two perpendicular planes of symmetry 9, 6, along a central axis 9 and orthogonal to the bottom 4. The inner side surface 3 also has two perpendicular planes of symmetry 7, 8, orthogonal to the bottom 4, but offset angularly with respect to those of the outer surface 2, of a dihedral, having the axis 9 for an edge, substantially between 10 and 200. Thus the thickness of the pot, between its walls lateral outer and inner, is greater in the large plane of symmetry 5 of the major axis of the section of the pot (Figure 2) than in the small plane of symmetry 6 of the minor axis of the section of the pot (Figure 3).

 The pot 1 has means for closing and being cheated, intended to cooperate with complementary means of a cover which will be described below, and which are here provided on a skirt 10 extending the pot itself and , more precisely here, the inner side wall 3. The skirt 10 has a section, parallel to the bottom 4 of the pot, annular and of substantially constant thickness. The inner side surface of the skirt 10 therefore extends that of the pot. As for its external lateral surface 11, it provides an annular shoulder with the upper annular rim 12 of the pot. It will be noted that the thickness of the rim 12 varies along the skirt, to be minimal between the planes of symmetry 6 and 7, and maximum in a substantially median plane of the dihedral formed by plants of symmetry 5 and 8.

 On either side of its large plane of symmetry 7, and as already mentioned implicitly above, and respectfully offensive on the two opposite sides with respect to the axis 9, the outer lateral wall 11 of the skirt is provided with a portion of protruding thread 13, providing, with the portion of the rim 12 facing it, a portion of groove, or of hollow thread, 14 of tapping.Laterally, each portion of thread 13 extends, and becomes thinner, from the large plane of symmetry 5 of the outer side wall 2 of the pot to a plane 15 substantially symmetrical of the plane 5 with respect to the large plane of symmetry 7 of the inner side wall 3 and therefore of the skirt. symmetry 5, each portion of the thread 13 is extended, perpendicularly, by a thin stop or stop thread, 16 extending here up to the rim 12.

 Figures 5 - 7 shows the cover 20 for closing the pot 1. The cover 20 has a bottom 21 from which extends a side wall 22 in the form of an annular skirt of constant thickness and substantially equal to the minimum thickness rim 12 of pot 1.

 The section, parallel to the bottom 21, of the external lateral surface 23 of the skirt 22 of the cover 20 has a shape and dimensions identical to that 2 of the pot 1, near its rim 12, so that, in the closed position, extends it. Under these conditions, the skirt 10 of the pot 1 can be inscribed inside the inner side wall 27 of the skirt 22 of the cover 20; the skirt 10 of the pot can be pivoted there or, conversely, the skirt 22 of the cover 20 can be pivoted on that 10 of the pot 1.

 The skirt 22 of the cover 20 provides with its bottom 21 an annular shoulder 24 at a distance from the free edge 25 of the skirt 22 slightly larger than the axial dimension of the skirt 10 of the pot 1, between the rim 12 and the free edge 17 of the skirt 10, so that, after interposition of a sheet of flexible sealing material 26, the distance from this sheet 26 to the free edge 25 of the skirt 22 is slightly less than the axial dimension of the skirt 10 of the pot I , and that, when the pot is closed by the cover which will be discussed later, the skirt 10 of the pot 1 comes to pinch, or compress, the sheet 26 and thus ensure the seal.

 The bottom 21 has a recess 28, adjacent to the annular shoulder 24, to allow the sealing sheet 26 to be slightly deformed by the skirt 10 of the pot 1 and pushed back towards the central part of the bottom.

 On either side of the large plane of symmetry 29 of the cover, and respectively of the two opposite sides with respect to the axis 30 of the cover, the inner side wall 27 of the skirt 22 is provided with a portion of net 31 in protrusion. Laterally, each portion of the thread 31 extends, and tapering from an abutment shoulder 32 located substantially in the large plane of symmetry 29, over an angular distance substantially equal to that over which the threads 13 of the pot extend. . The thread portions 31 have an upper ramp 33, turned towards the bottom 21, slightly inclined and at approximately the same distance from the free edge 25 of the cover as the lower surface 18 of the thread portions 13 of the pot of its rim 12.

 The pot 1 is closed by the cover 20 as follows. The cover 20 is presented above the skirt 10 of the pot with their respective major planes of symmetry 29 and 7 substantially combined and the cover 20 is slid around the skirt 10 of the pot, until the edge 25 of the cover comes almost in abutment against the rim 12 of the pot, the sheet 26 when in abutment against the edge 17 of the skirt 10 of the pot. During this step, the abutment shoulders 32 of the thread portions 31 of the cover are passed along the thinned ends of the thread portions 13 of the pot. It will be noted, at this point, that the operator cannot present the cover above the pot except in the predetermined opening position, apart from the games, defined above.

 I1 then remains only for the operator to easily rotate the cover 20 on the skirt 10 of the pot, in the clockwise direction in FIG. 1, in the opposite direction in FIG. 5. The portions of thread 31 of the cover pass between the thread portions 13 and the rim 12 of the pot, in the manner of a thread in a thread, until the abutment surfaces 32 abut against the abutment threads 16, that the planes of symmetry 5, 6 and 29, 35 are merged and that the external lateral wall 23 of the cover harmoniously extends the external lateral surface 2 of the pot.

In this relative rotational movement, the cooperation of the ramps 33 and 18 of the thread portions 31 and 13 pressed the cover 20 against the rim 12 of the pot and pinched the sheet 26 between the edge 17 of the pot and the shoulder 24 of the cover .

 Still during this closing rotational movement, the zones of the inner side walls 27 of the cover and outer side 11 of the skirt of the pot, on which the thread portions 31 and 13 are formed, have respectively slid over one another and the zones of the inner lateral wall 27 of the skirt 22 of the cover 20 extending between, on the one hand, the plane 34, passing through the axis 30 and offset angularly, on the side opposite to the thread portions 31, substantially of the same angle as that of the dihedral between the large planes of symmetry 5, 7 of the pot and its skirt, and, on the other hand, the small plane of symmetry 35 have rolled respectively against the zones of the external lateral wall 11 of the skirt 10 of pot 1, extending between the planes of symmetry 5, 6 of pot 1.

 Is shown in Figure 5, and schematically, the skirt 10 of the pot 1 with one of its thread portions 13 above the corresponding thread portion 31 of the cover, in the closed position, with its planes of symmetry 7, 8.

 To open, simply perform the reverse rotational movement before, in the open position, release the cover from the pot skirt.

 In the example described above, the pot and the cover were obtained by injecting plastic material into molds, but any other embodiment could naturally also be envisaged, as well as any other material.

 We have described a pot and an oblong cover with two perpendicular planes of symmetry. Z'invention stapplique in fact to any container, with its cover, of any shape, although preferably cylindrical, but not of revolution, at least as regards its skirt-closure.

 Likewise, the portions of the closure net of the container described above were formed on a thinner skirt raising the container, but they could also be formed on the container itself, a portion of which would therefore play the role of this closing and sealing skirt.

 In addition, the container closure net portions were formed on an outer side surface, but they could also be formed on a united inner side surface. In this case, the cover would be provided with a skirt recessed with respect to its external lateral surface, skirt on the external lateral surface of the watercolor would be formed the portions of net complementary to those of the container.

 Furthermore, it is the protruding thread portions of the cover described above which play the role of thread portions, those of the pot providing tapping portions. The reverse can also be done.

 Finally, the means for closing the container and its cover described above are formed by threading and tapping portions. One could envisage other closing means, such as for example bayonet closing means or any other similar means.

Claims (9)

Claims  1 - Container (1) closed by a cover (20), the container having a sealing and closing skirt (10), the external side wall (11) of one (10) of the two skirt elements and hood (10, 20) being-arranged to cooperate with the interior side wall (27) of the other (20), characterized in that said exterior (11) and interior (27t) side walls are not of revolution and these two side walls are shaped so that one (11) can fit into the other (27) and be relatively pivoted therein so as to be able to turn the skirt (10) and the cover (20) relative to one another the other.  2 - container according to claim 1, wherein the relative pivoting of said side walls (11, 27) is effected from an open position to a closed position by relative sliding of two zones (13) of one (11) of the two walls on two zones (31) of the other (27) of the two walls.  3 - container according to claim 2, wherein said outer side walls (11) and inner (27) respective of the two skirt elements (10) and cover (20) are respectively provided with cooperation means (13, 31) s 'extending along these areas.  4 - container according to claim 3, wherein said cooperation means comprise, on each of the two outer side walls (11) and inner (27), in each of the sliding zones, a portion of projecting net (13, 31) , one (13) of the thread portions of one (11) of the walls cooperating with one (31)? the thread portions of the other (27) of the walls in the manner of two tapping portions and thread.  5 - A container according to claim 1, wherein the relative pivoting of said side walls (11, 27) is effected by respective rolling of zones of one (11) of said walls on the zones of the other (27) of said walls .  6 - container according to one of claims 1 to 5, wherein the container (1) and the cover (20) have an oblong shape, with two perpendicular planes of symmetry (5, 6; 29, 35) common to both ( 1, 20) in the closed position.  7 - container according to one of claims 1 to 6, wherein, in the closed position, the outer side wall (23) of the cover (20) extends the outer side wall (2) of the container (1).  8 - A container according to one of claims 6 and 7, wherein the sealing and closing skirt (10) has an oblong shape, with two perpendicular planes of symmetry (7, 8) angularly offset from those (5, 6 ) of the container (1) at an angle substantially equal to the relative pivoting angle of the skirt (10) and the cover (20).  9 - container according to claim 8, wherein the inner side wall of the skirt (10) extends the inner side wall (3) of the container.