EP0886611B1 - Container cap with means for hanging a container from a supporting rod - Google Patents

Abstract

A container cap including a skirt (2) with an open lower end (2<u>c</u>) for fitting same onto a container, and a substantially planar top surface (2<u>d</u>) with diametrically opposed bearing portions (5<u>a</u>) on either side of the central axis (2<u>a</u>) of the skirt, and hooking means for hanging the cap from a supporting rod. The hooking means include at least two rod-engaging points below the plane of the top surface of the skirt, and consist of a hook contained within the space defined by the skirt (2), and an elongate and preferably L-shaped channel is provided in the cap for inserting the rod through the top surface (2<u>d</u>) of the skirt and guiding it into the hook.

Description

The present invention relates to a cover for a container, which once adapted on the container allows it to be hung on a display pin. She finds more particularly, but not exclusively, its application for presentation for sale on display pins of container gaseous, liquid or pasty products, possibly under pressure, which are provided with a spray head and commonly known as "bombs aerosols >>, << atomizers >> or << sprayers >>, the cover allowing both protect the spray head and hang the container to a display pin.

A container cover of the aforementioned type has an open skirt at its base to allow adaptation of the cover on the container, and a upper transverse wall for closing the cover.

In a first known variant, to suspend the container provided with its cover to a display pin, a tongue on the upper transverse wall of the cover. Any deterioration due to storage, movement or presentation for sale of container is transferred to the suspension tab: the cover remains intact. However, the tabs prevent the containers from overlapping, by view of their storage.

In order to overcome this problem, it has already been proposed to carry out foldable tabs against the upper transverse wall, making possible stacking of containers.

• la languette est fragile et est susceptible d'être facilement arrachée, ce qui d'une part empêche de présenter le produit sur une broche, et d'autre part peut endommager la paroi supérieure transversale du capot ;
• la broche n'ayant qu'un seul point d'appui sur le capot au niveau de la languette, une fois le conteneur installé sur une broche de présentoir, celui-ci n'est pas stable, mais est susceptible de basculer dans l'axe de la broche à la moindre sollicitation ;
• la languette rapportée est inesthétique.

Whether they have fixed or folding tabs, the covers according to the first variant raise several problems:

• the tongue is fragile and is capable of being easily torn off, which on the one hand prevents the product from being presented on a spindle, and on the other hand can damage the transverse upper wall of the cover;
• the spindle having only one support point on the cover at the level of the tongue, once the container is installed on a display spindle, the latter is not stable, but is liable to tip over into the spindle axis at the slightest stress;
• the attached tongue is unsightly.

In a second known variant, to avoid any container damage, plastic packaging, commonly known as <<blisters>>, have been proposed. These packages are molded according to the shape of the container and allow to wrap it entirely. They also have a surface tab plane in which an opening for the passage of the spindle is practiced.

• le coût de fabrication de tels conditionnement est plus onéreux;
• Le conteneur muni de son capot et emballé dans son conditionnement plastique, est plus volumineux, ce qui d'une part impose un plus grand écartement entre broches de présentoirs adjacentes, et d'autre part diminue le nombre conteneurs susceptibles d'être installés sur une broche de présentoirs ; il en résulte en définitive que le nombre de conteneurs pouvant être présentés à la vente dans un rayonnage est moins important.

With the exception of the problems of deterioration of the cover, these plastic packages have all the aforementioned drawbacks, to which are added the following drawbacks:

• the manufacturing cost of such packaging is more expensive;
• The container fitted with its cover and wrapped in its plastic packaging is larger, which on the one hand requires greater spacing between pins of adjacent display stands, and on the other hand reduces the number of containers that can be installed on a display pin; the result is ultimately that the number of containers that can be presented for sale on a shelf is less important.

In a third variant known and described in US-A-4,258,857, it has been proposed to make directly in the cover of the container a passage for the display pin. In this document, this passage takes the form of a straight central channel running right through apart the hood.

This third solution overcomes all the disadvantages mentioned above. In particular the suspension of the container on a spindle is stable, since the channel offers the spindle at least two points support spaced, which avoids any risk of swaying of the container suspended in the direction of the spindle. Containers with their covers can be stacked for storage, knowing that the upper transverse wall provides a peripheral edge capable of coming cooperate with the bottom of a container and serve as a stable support. The attachment of the container to a spindle is also reliable.

However, this solution has the main drawback following. In order to prevent products hanging from a spindle from accidentally drop out, especially when the spindle is strongly loaded, the display pins either have a bent end upwards, either are equipped with a stopper at their end. Gold the suspension channel provided in the cover according to the third solution forces the user to thread successively on a spindle, or to remove the containers of a spit, sliding them through the end of the spit. As a result, the containers can be threaded only on pins whose end has a vertical footprint smaller than the channel section.

It should be noted that this problem does not arise in first and second aforementioned variant, for which the means hanger (attached tongue or hanger) provide single point of support for the spindle. Indeed, in these two variants, even if to put on a spit or remove a container from a spit, you are forced to pass it through the end of the spindle, it is always possible to rotate the container relative to its single point of support on the spindle, and by this thanks to this pivoting, to remove or thread the produced by the end of the spindle, whatever the size height of the spindle at its end relative to the dimension of the opening of passage of the spindle in the tongue or the tab of suspension. In the third solution, the channel offering two support points spaced apart for the spindle for stable suspension of the container, such pivoting relative to the spindle is very limited, if not impossible.

In a fourth variant known and described in the model German utility DE-U-91 08 514, it has already been proposed to produce a cover having a straight U-shaped side slit which is made in the hood skirt while being inclined downwards from the center of the cover, the bottom of which has the function of serving as a housing for the pin display stand. This solution overcomes the aforementioned drawback inherent to the third variant mentioned above, since we can suspend the container fitted with its cover directly on the spindle without passing by the end of the spindle.

• la mise en place ou le retrait d'un conteneur d'une broche nécessitent de faire subir au conteneur une translation dans la direction d'inclinaison de la fente latérale ; il en résulte une perte de place dans les rayonnages, comparativement par exemple à la solution de la troisième variante, étant donnée que les broches de présentoir doivent être suffisamment espacées les unes des autres, aussi bien dans une direction verticale que dans une direction horizontale pour permettre le passage du conteneur lors de sa mise en place ou de son retrait d'une broche ;
• l'accrochage du conteneur sur une broche n'est pas fiable, le conteneur risquant de se décrocher en cas de pivotement, même de faible amplitude, dans un plan vertical selon l'axe de la broche ; il y a donc un risque important que l'on décroche accidentellement des conteneurs en manipulant des articles suspendus sur des broches voisines ;
• dans la variante illustrée et décrite dans ce modèle d'utilité allemand, la paroi supérieure au niveau de la fente suit la même inclinaison que la fente, ce qui d'une part la rend inapte au gerbage des conteneurs, et d'autre part rend le capot impossible à mettre en oeuvre sur les lignes automatisées usuelles pour la mise en place automatique des capots sur les conteneurs; en effet dans ces lignes automatisées un vérin vient exercer une pression sur la face supérieure du capot pour l'emboíter sur le récipient, et il est donc impératif que le bord supérieur de la jupe du capot offre un contour d'appui symétrique pour le vérin, en sorte de ne pas déséquilibrer le capot lors de sa mise en place sur le conteneur.

However, this solution has the following main additional disadvantages:

• placing or removing a container from a spindle requires the container to undergo translation in the direction of inclination of the lateral slot; this results in a loss of space in the shelves, compared for example to the solution of the third variant, since the display pins must be sufficiently spaced from each other, both in a vertical direction and in a horizontal direction to allow the container to pass during its installation or removal from a pin;
• the attachment of the container to a spindle is not reliable, the container running the risk of falling off in the event of pivoting, even of small amplitude, in a vertical plane along the axis of the spindle; there is therefore a significant risk of accidentally unhooking containers while handling articles suspended on neighboring pins;
• in the variant illustrated and described in this German utility model, the upper wall at the level of the slot follows the same inclination as the slot, which on the one hand makes it unsuitable for stacking containers, and on the other hand makes the cover impossible to implement on the usual automated lines for the automatic positioning of the covers on the containers; in fact, in these automated lines, a jack exerts pressure on the upper face of the cover to fit it onto the container, and it is therefore imperative that the upper edge of the cover skirt provide a symmetrical bearing contour for the jack. , so as not to unbalance the cover when it is placed on the container.

It would certainly be theoretically possible to adapt the hood of the utility model mentioned above by making a flat upper wall allowing stacking containers and using them on lines usual automated. However, this would lead to the provision of a spacing in height between pins even more important to allow the passage of the transverse upper wall.

To increase the reliability of the attachment on the spindle, it is also included in the German utility model DE-U-91 08 514 to add a protrusion, or a magnet or a spring in the slot, but this solution complicates the production of the cover as well as its use for hanging the container on a spindle, and is in practice unsuitable.

Finally, to increase the reliability of the attachment it would be conceivable to provide a slot for the introduction of the spindle with a greater tilt. However, the increase in the reliability of attachment would be in this case at the expense again the height difference between spindles.

The object of the invention is to provide a cover for the suspension a container on a display pin, which has all the advantages covers of the third and fourth solutions mentioned above without present the disadvantages inherent in each of these solutions, that is to say mainly a hood which allows a stable and reliable suspension of the container, which allows a user to easily hang or unhook the container of a display pin, which is capable of being threaded on a spindle whatever the shape and size in height of the end of the spindle, which allows to keep a reduced spacing between the display pins substantially identical to that obtained with the third variant, which makes it possible to put the covers on the containers on usual automated assembly lines, which allows incidentally the stacking of the containers.

The cover according to the invention is known from US-A-4,258,857 in that it includes a skirt with an inner side open for its adaptation on a container, and a substantially flat upper face having diametrically opposite bearing portions with respect to the central axis of the skirt, and hooking means for the suspension of the cover on a spindle which, below the plane of the upper face of the skirt, at least two support points spaced apart for the spindle.

Typically according to the invention, the means hooks are in the form of a hook integrated in the volume delimited by the skirt, and a slender passage is provided in the cover for inserting the spindle through the upper face of the skirt and for guide to the hook.

• La figure 1 est une vue en perspective, de côté, d'une première variante de réalisation d'un capot selon l'invention monté sur un conteneur cylindrique,
• La figure 2 est une vue en perspective du capot de la figure 1, vue de dessous,
• La figure 3 est une vue en perspective d'une deuxième variante de réalisation plus perfectionnée d'un capot selon l'invention disposé sur un conteneur cylindrique,
• La figure 4 est une vue en coupe transversale du capot de la figure 3 suspendu à une broche de présentoir B,
• La figure 5 est une vue de dessus du capot des figures 3 et 4,
• et la figure 6 est une vue en perspective d'une deuxième variante simplifiée d'un capot de l'invention monté sur un conteneur cylindrique.

Other characteristics and advantages of the invention will appear more clearly on reading the description below of three alternative embodiments of a cover for a container in the form of a cylindrical container, which description is given by way of non-limiting example and with reference to the attached drawing in which:

• FIG. 1 is a perspective view, from the side, of a first alternative embodiment of a cover according to the invention mounted on a cylindrical container,
• FIG. 2 is a perspective view of the cover of FIG. 1, seen from below,
• FIG. 3 is a perspective view of a second, more improved alternative embodiment of a cover according to the invention arranged on a cylindrical container,
• FIG. 4 is a cross-sectional view of the cover of FIG. 3 suspended from a display pin B,
• FIG. 5 is a top view of the cover of FIGS. 3 and 4,
• and Figure 6 is a perspective view of a second simplified variant of a cover of the invention mounted on a cylindrical container.

In the three variant embodiments illustrated in the appended figures, the cover 1 comprises a cylindrical skirt 2 with a central axis 2 a , consisting of a cylindrical side wall 2 b whose lower face 2 c is open so as to allow mounting of the cover on the upper part of a container A and the upper face 2 d of which can be closed, as the case may be (variant of FIGS. 1 to 5) or open (variant of FIG. 6).

The cover 1 is fixed on the upper part of the container A by any suitable means known to those skilled in the art, and for example by clip the lower edge of skirt 2 onto the top of the container. In another variant, the container A and the skirt 2 of the cover may be designed to so that the cover is screwed onto the upper part of the container A. Once the cover 1 is mounted on the container A, the part lower 3 of the skirt 2 defines an interior housing for the top of the container A, and in particular for the distribution mechanism (not shown) of the product stored in the container.

In all the examples illustrated, the shape of the container, and therefore the shape of the skirt which is adapted to that of the container, is cylindrical, which corresponds to the most common form in the field containers such as aerosol cans, atomizers or sprayers.

The invention is however not limited to this particular form of container but may find its application to any known form of container. Thus, the skirt 2 of the cover 1 may for its adaptation on a container, have any polygonal shape in section, or have a sectional shape that is oval.

According to the invention, in the three illustrated variants, the cover 1 comprises, in its upper part 4, for its suspension on a display spindle, a hook which is integrated in the volume delimited by the skirt 2, that is to say ie a hook which does not protrude with respect to the outer face of the side wall 2 b of the skirt, or with respect to the lower 2 c and upper 2 d faces of the skirt 2. In the following description the upper part 4 of the cover will be called attachment head. In addition, according to an essential characteristic of the invention, in each variant, the cover 1 has a slender passage which makes it possible to introduce the display spindle through the upper face 2 d of the skirt, and whose function is to guide the spindle relative to the cover up to the hook. The design of the hook and the elongate passage is different for each variant, and will now be detailed for each variant.

In the first alternative embodiment illustrated in Figures 1 and 2, the upper face 2 d of the skirt 2 is closed by an end wall 5 a substantially planar and transverse to the axis 2 a . A channel 6 preferably cylindrical or partially cylindrical (that is to say of a shape complementary to the cylindrical display pins), of axis 7 hereinafter called suspension axis, is produced in the hooking head 4 , crossing it diametrically right through. The channel 6 has a diameter equal to or slightly greater than the diameter of the display pins, that is to say varies between 5 mm and 2 cm and preferably between 8 mm and 1 cm.

A vertical groove 9 with a longitudinal axis 9 parallel to and offset from the axis 7 of suspension is formed in the gripping head 4. The bottom 10 of the groove 9 arrives at the horizontal plane tangential to the channel 6 cylindrical. A substantially horizontal groove 11, the bottom of which consists of a lower transverse wall 5b, is formed in the cover so as to bring the vertical groove 9 and the channel 6 into communication. In this way, a longitudinal passage is provided for the spindle, from the upper end wall 5 a to the channel 6 passing successively through the grooves 9 then 11. All of the grooves 9 and 11 and of the channel 6 present, in side view, a general L-shaped profile.

The vertical 9 and horizontal 11 grooves form the elongated passage allowing the spindle to access and be guided to the channel 6. Preferably, the width l of these two grooves will be substantially identical and at least equal to the diameter of the pins display standards.

In the variant which has just been described, the wall 5 a at the level of the channel 6 forms a suspension hook 8 integrated into the attachment head 4, and comprising a bearing surface 8 a capable of cooperating with the spindle, and of length equal to the diameter of the skirt 2. When the cover is placed on the spindle, the latter is stably suspended, the spindle bearing along the bearing surface 8 a . This avoids the risk of the container tilting in the longitudinal direction of the spindle. In the example illustrated, the suspension hook 8 is located in the vertical plane of symmetry of the skirt 2, which makes it possible to maintain the longitudinal axis of the cylindrical container A in a vertical plane, when this container is suspended from a spindle display stand, via its cover 1.

The suspension of a container fitted with its cover 1 on a display spindle is carried out as follows. The container covered with its cover is presented with respect to the spindle so that the inlet of the groove 9 is aligned and perpendicular to the spindle; introducing and sliding the pin into the groove 9 by lifting the container until the display pin comes into contact with the bottom 10 of the groove 9; the container is moved laterally so as to slide the spindle in the horizontal groove 11, until the spindle enters the channel 6; then made slightly down the container, so as to bring the supporting surface 8 a into contact with the pin. To unhook a container from a display pin, simply perform the above operations in reverse.

We understand by reading the above operations of attachment or of stalling a container on a display spindle that the passage elongated formed by the grooves 9 and 11 advantageously allows the hood to be easily and quickly suspended or lifted from a point any spindle, without having to slide the cover by the free end of the spindle.

According to another characteristic of the invention, the upper end wall 5 a of the cover of FIG. 1 has a planar contour having support portions diametrically opposite with respect to the central axis of the skirt 2; this is mainly the portion referenced 12 a , and the support portion 12 b which has been hatched in FIG. 1. These two diametrically opposite support portions 12 a , 12 b advantageously make it possible to mount automatically the cover on a container, using a jack, the rod of which is provided at its free end with a pressure surface capable of being applied at least on the two support portions 12 a , 12 b of the upper face 2 d of the cover. In the event that the cover does not include these two diametrically opposite support portions, such an automatic mounting operation would not be possible, because the cover would be unbalanced during its mounting, under the action of the pressure of the jack. .

In addition, when the bottom of container A is perfectly flat, or when it has a slight recess having a diameter slightly greater than the diameter of the skirt, the diametrically opposite bearing portions of the upper face 2 d can advantageously serve as portions support for the bottom of a container, and thereby advantageously make it possible to stack the containers fitted with their covers one above the other for storage.

In the variant of FIG. 1, a circular light 13, with a central vertical axis, is produced in the attachment head 4, and more precisely in the wall 5 b , so as to place the interior of the lower part 3 of the skirt in communication with the cylindrical channel 6. It saves on material and makes the hood lighter.

In addition, in the hood manufacturing process, sorting is achieved by means of a blower. The manufacturing device conducts the fluid or air blown into the hood skirt. The wall of the hook 8 constitutes an obstacle to the passage of fluid or air and the cover is thus raised and transported by it. Therefore, it is necessary that the greatest dimension of light 13 is produced in such a way that it is covered by the hook 8.

The lower part 3 of the skirt 2 is provided with a bead 14 annular projecting with respect to the internal surface of the skirt 2 and likely to bear on the corresponding bead of the container. The bead 14 has, for example, a height of about 0.2 mm and a thickness of about 1 mm.

The bead 14 is reinforced by triangular lugs 15, one of which one side is attached to the skirt 2 and the other to the bead 14. The pins 15 are distributed homogeneously along the bead 14: they are likely to have different and varied provisions. They present, for example, a height of 2mm and a width of 0.8mm.

Projections 16, of oblong shape, can be provided below of the bead 14 and distributed uniformly or differently along the internal circumference of skirt 2. They are intended to also rely on corresponding means on the container to strengthen the attachment of the cover thereon. They present, by example, a thickness of about 0.5mm.

According to a more sophisticated variant illustrated in FIGS. 3 to 5, the cover 1 comprises a central part 17 whose profile in section in a vertical plane has a U-shape. The central part 17 consists of two vertical walls 18,19, and of a bottom 20, connected by rounded surfaces. Each vertical wall 18, 19 defines with the cylindrical wall 2 b of the skirt 2 and the upper end wall 5 a , two blocks respectively 21, 22, diametrically opposite with respect to the central axis 2 a of the skirt 2, and having in section along a horizontal plane, a half-moon shape. The upper half-moon faces of the two blocks 21, 22 form two diametrically opposite support portions, which are comparable to the support portions 12 a and 12 b of the variant of FIGS. 1 and 2, and bring the same advantages previously. described.

In FIGS. 3 to 5, a tongue 23 is provided to form an integrated suspension hook of small thickness e , comparable in practice to the thickness of the side wall 2 b of the cylindrical skirt 2. This tongue extends from the block 22, and in the example illustrated from the rectilinear edge 22 a of the upper half-moon face of the block 22. Preferably the tongue 23 has a wave-shaped profile (FIG. 4), with from the block 22 a first curved portion 23 a oriented towards the bottom 20, and a second curved portion 23 b in an arc of an upwardly oriented circle, coming substantially to tangent to the plane of the upper half-moon faces of the two blocks 21 and 22.

The underside 23 c of the second portion 23 b is intended to serve as a bearing surface for a display pin B (Figure 4). According to another alternative embodiment of the invention, this bearing surface 23 c could be hollowed out in places to form parallel surface fingers of identical shape capable of fulfilling the same function.

The wave shape of the tongue 23 advantageously makes it possible to give it better rigidity. However, to increase the rigidity of the tongue 23, the latter is preferably connected to the vertical wall 19 of the block 22 by two vertical sides 24, 25, oriented transversely to the plane 19. In addition, ribs 26 for supporting the tongue 22 are more particularly produced in the first curved portion 23 a .

In the variant of FIGS. 3 to 5, the internal face 18 a of the vertical wall 18, and the bottom 20 of the U-shaped central part 17 delimit with the free edge 23 d of the tongue 22 a long passage in the form of L, for display pin B.

In the variant of FIGS. 3 to 5, a light 27 is made in the bottom 20 of the central part 17 in the shape of a U. This light 27 brings the same advantages previously described for light 13 of the variant of Figures 1 and 2. In addition, this light 27 has a rectangular surface which corresponds substantially to the projection of the tongue 23 on the bottom 20, which advantageously reduces the costs of molding tools. Indeed, the light 27 allows the molds upper and lower to be joined, and allows comparatively by example in the variant of Figure 1 to avoid to achieve the hook suspension to use a drawer which increases the cost of the mold.

According to an additional characteristic, the length L of the tongue 23 taken in the direction of its suspension axis 23 e is less than the diameter D of the skirt 2, and the bottom 20 of the central part 17 has two portions 20 a and 20 b connecting the two walls 18 and 19 of the two blocks 21, 22 on either side of the tongue 23. These two portions 20 a and 20 b allow, despite the presence of the light 27, to keep the skirt 2 of the cover very good rigidity in a direction transverse to the suspension axis 23 e . The rigidity of the skirt in a direction parallel to the suspension axis 23 c is in turn imparted by the two blocks 21, 22 in a half-moon shape.

Referring to Figure 4, projections 28 comparable to projections 16 of the variant of FIG. 2 are created inside the skirt 2. Vertical threads 29 extend from the bottom 20 of the central part 17 to the lower end of the skirt, slightly above the projections 28. These threads make it possible to reinforce the structure of the skirt 2 in its lower part 3, and also to fix the cover 1 on a container provided with a bead in its upper part, the lower end of the threads 29 forming a stop for the bead of the container.

There is shown in Figure 6 a cover 1 according to the invention, which corresponds to a simplified variant of the cover of Figures 1 and 2. According to this other embodiment, the cover 1 consists of a cylindrical skirt 2 whose upper face 2 d is fully open. In the upper part 4 of this skirt 2 were made two diametrically opposite openings 30 and two notches 31 in an L shape. Each notch 31 extends from the upper edge of the skirt 2 to one of the two openings 30 . the two diametrically aligned apertures 30 provide two support points spaced 30 has the pin, and fulfill the same function as the channel 6 of the embodiment of figures 1 and 2. the two notches 31 L define an elongated passage for the introduction of the spindle to the two support portions 30 a from the upper face 2 d of the skirt, and thus fulfill the same function as the grooves 9 and 11.

In the variant of FIG. 6, the open upper face 2 d of the skirt 2 is reduced to the upper edge of the skirt, which forms a plane contour transverse to the central axis 2 a of the skirt. This planar outline has, as for the variants of FIGS. 1 to 5, diametrically opposite bearing portions 32 a and 32 b fulfilling the same function and providing the same advantages as the portions 12 a and 12 b of the variant of FIGS. 1 and 2 , or else that the upper bearing faces of the blocks 21, 22 in the form of a half-moon of the variant of FIGS. 3 to 5.

According to a development of the invention, the cover in the form of embodiment of Figure 6 is more particularly suitable for hanging on a display spindle a container already closed by a cap. The cap has a simple shape: for example it consists of a skirt cylindrical with one end open and the other closed with a flat wall, the open end comprising means for fixing to the container. The cover is removably attached to the cover by any known means, for example by magnetization. the user can, by example, unhook the cover-cap-container assembly from the display spindle, then return the cover to the cash register at the exit of the store to avoid keep only the container with its cap.

According to another variant, the cover is permanently fixed to the display spindle, and the user grasps the entire container that is to say with the closing cap, the cap remaining fixed to the spindle of display.

In another variant, the cover 1 of FIG. 6 could be closed by means of a transverse wall provided below the level of the openings 30. In this variant, as well as for the variants of the Figures 1 to 5, the cover acts as both the closure cap of the upper part of the container, and means for suspending the container to a display pin.

The covers of the invention will preferably be one-piece parts molded, of plastic, and in particular of polypropylene.

Claims (11)

1. Cap for container comprising a skirt (2) with an open lower face (2c) for fit on a container, and a substantially planar upper face (2d) presenting bearing portions which are diametrally opposite with respect to the central axis (2a) of the skirt, and hooking means for suspending the cap on a rod which present, this side of the plane of the upper face of the skirt, at least two spaced apart bearing points for the rod, characterized in that the hooking means are in the form of a hook contained in the volume defined by the skirt (2), and in that an elongate passage is provided in the cap to introduce the rod via the upper face (2c) of the skirt and to guide it as far as the hook.
2. Cap according to Claim 1, characterized in that the longitudinal passage presents a substantially L-shaped profile.
3. Cap according to Claim 1 or 2, characterized in that the elongate passage presents a substantially constant width l.
4. Cap according to one of Claims 1 to 3, characterized in that it comprises a lower transverse wall (5b) under the hook, in that the hook presents a bearing surface (8a, 23c) for a rod, and in that a slot (13, 27) is made in the lower wall (5b) under the bearing surface (8a; 23c).
5. Cap according to Claim 4, characterized in that the hook is formed by a tongue (23), and in that the slot (27) corresponds substantially to the projection of the tongue (23) on the lower wall (5b).
6. Cap according to Claim 5, characterized in that the length (L) of the tongue (23) is less than the diameter (D) of the cap, and the lower wall (5b) of the cap presents on either side of the tongue two portions (20a; 20b) for rigidification of the skirt (2).
7. Cap according to one of Claims 2 to 6, characterized in that it comprises two blocks (21, 22) defining with a lower wall (5b) a central part (17) in U-form, in that the tongue (23) extends in the central part (17) from a first (22) of the two blocks, and in that the free edge (23d) of the tongue (23) defines with the inner wall (18) of the second block (21) and the lower wall (5b) a longitudinal passage substantially in the form of an L for a rod.
8. Cap according to Claim 7, characterized in that the tongue (23) presenting a small thickness (e), it is connected, for rigidification thereof, to the inner wall (19) of the first block (22) by at least two vertical flanks (24, 25).
9. Cap according to Claim 8, characterized in that the tongue (23) presents a wave-shaped profile, with a first curved portion (23a) oriented from the first block (22) towards the bottom of the central part (17) and a second curved portion (23b) oriented towards the upper face (2d) of the skirt (2).
10. Container equipped with a cap according to any one of Claims 1 to 9 for suspension on a display rod.
11. Container equipped with a closure top, characterized in that it is removably fixed, for suspension, to a cap according to any one of Claims 1 to 9.

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