Short title: Bottle tray
The invention relates to a bottle tray, comprising a top wall and side walls which extend downwards from the top wall, a number of cavities being arranged in the top wall, which cavities are each suitable for receiving a lower base section of a bottle and each have a projection which protrudes upwards centrally on the bottom thereof, which projection, together with an inner wall of the cavity, defines a circumferential recess for receiving a lower stand section around a central recess in the bottle. A bottle tray of this type is known from
WO 9609220. The known tray is intended for bottles to be placed in the cavities, the shell of which bottles has a central core which on the underside is delimited by a lower stand section of the shell. The wall of the shell has a continuous transition between the outside of the bottle and the bottom of the core . Each cavity of the known tray has a shape which is matched to this continuous transition, with a significant degree of play. Along the sides of the tray, wall sections of the adjacent cavities project upwards as far as approximately opposite a cylindrical section of the bottles. The height of the walls between adjacent cavities is lower to such an extent that bottles which have been placed in adjacent cavities are in contact with one another. Centrally below the level of the bottom of each cavity, there is a chamber which is delimited by a substantially cylindrical wall and which is suitable for accommodating a cap of a bottle situated at a lower level . The dimensions of the cylindrical wall are such that the bottom edge of the cylindrical wall is supported, at a short distance below the cap, on a production flange on the bottle situated at a lower level.
The known tray has the drawback that bottles which have been placed next to one another can push against one another during transport, with the result that the outside
of the bottles, which may be printed, is damaged, so that the service life of the bottles is limited. Another drawback is that when the tray is substantially empty and when a bottle is placed in the tray, the bottle is supported only to a very limited extent and can easily fall over, making it difficult to fill the tray. The risk of tilting also arises and has more serious consequences in the case of a stack of trays which may or may not be filled with bottles. The state of the top tray of the stack and of the bottles present therein is even less stable than that of the lower trays .
Bottles with a separate lower base section, or barrel, which is attached thereto can be produced with a lower wall thickness. If the known tray is used for bottles of this nature, there is a risk, when moving a stack of trays with bottles therein, of a production flange of a bottle, on which a tray situated at a higher level is supported, moving with respect to the shell of the bottle, with the result that the transition between the flange and the shell may become weakened and damaged, thus additionally limiting the service life.
The object of the invention is to eliminate the abovementioned drawbacks.
To this end, the bottle tray of the type mentioned in the preamble is characterized, according to the invention, in that the projection is essentially an upright flange and the flange and a wall of the cavity have dimensions which are suitable for accommodating the base section in a tightly fitting manner with respect to the cavity wall and the stand section in the circumferential recess .
As a result, each bottle is held securely, separately and stably in a cavity without the need for the cavities to be arranged so close together that adjacent bottles come into contact with one another, while even a stack of trays containing bottles is stable. In order to obtain a desired stability, it is furthermore not necessary for a tray situated at a higher level to be supported on the relatively wide production flanges of bottles situated
at a lower level, but rather it is sufficient for the higher tray to be supported on caps of the lower bottles. This eliminates damage to a bottle at the transition from the flange to the shell of the bottle as a result of the stack of trays tilting over.
A preferred embodiment of a bottle tray according to the invention is explained below in combination with the appended drawings, in which:
Fig. 1 shows a perspective view from above of a section of a bottle tray according to the invention;
Fig. 2 shows a perspective view from below of that section of the bottle tray which is shown in Fig. 1;
Fig. 3 shows a view from above of a cavity of the bottle tray; and Fig. 4 shows a section through two cavities of two bottle trays which have been placed one above the other with a bottle between them, on line IV-IV in Fig. 3.
As shown in the figures, a bottle tray 1 according to the invention has a top wall 2 and side walls, such as 3, 4.
Cavities 8 with a bottom 9 and a side wall 10 are formed in the top wall 2. The wall 10 is not necessarily continuous around its periphery, but rather, as shown, may be locally offset outwards in the radial direction or interrupted.
A flange 15 which substantially protrudes straight upwards, is formed centrally on the bottom 9 of each cavity 8. Although the flange 15 is shown to be continuous over its circumference, it is not necessary. The flange 15 defines a generally circumferential recess 16 with respect to the wall 10. The bottom 9 of the circumferential recess 16 has openings 17 to allow through, for example, spilt liquid or a cleaning liquid.
On the underside of each cavity 8, there is a flange 18 which extends downwards and, as is shown, may be aligned with the flange 15. The flange 18 surrounds a central chamber 20 which has a cylindrical side wall 21, a top wall 22 and a lower central opening 23. The side wall 21 is attached to the flange 15 via a number of radial
partitions 24.
The bottle tray 1 according to the invention is particularly suitable for placing in the cavities 8 bottles which have a shape similar to that of the bottle 30 shown in Figure 4. The bottle 30 comprises a shell 31 and a lower base section or barrel 32 in which the lower section of the shell 31 is accommodated and is attached thereto. The barrel 32 extends substantially vertically from above the convex bottom 33 of the shell 31 to below the bottom 33. On its underside, the barrel 32 has a central opening or recess 34 which, as a result, defines a lower, circumferential stand section which allows the bottle 30 to rest on a flat base. The stand section comprises vertical ribs 35 which extend radially inwards from a continuous outer wall 36 of the barrel 32. Free end edges 37 of the ribs 35 extend substantially parallel to a central axis of the bottle 30.
According to the invention, the cavities 8 are designed in such a way that the outer wall 36 of a barrel 32 fits tightly between the wall 10 of a cavity 8 and the lower stand section of the barrel 32 fits tightly inside the circumferential recess 16 of the cavity 8. As a result, a bottle 30 which has been placed in a cavity 8 can substantially only be moved vertically. As a result, a stack of trays 1 containing bottles 30, the caps 38 of which are accommodated in respective chambers 30, is very stable.
Due to the fact that in the case of a bottle 30 of the abovementioned type the barrel 32 fulfils a stand function for the bottle 30, the wall thickness of the shell 31 may be less than if a shell of a bottle consisting of the same material were to fulfil the stand function itself. In order to prevent damage to the weaker shell 31, the height of the flange 15 of a cavity 8 is preferably such that it just does not come into contact with the bottom 33 of the shell 31 of a bottle 30 which has been placed in the cavity 8. Also, in order to prevent damage, the dimensions of the chamber 20 are preferably such that the top wall 22 of a chamber 20 is supported on a cap 38 of a bottle 30
situated at a lower level instead of the tray 1 situated at a higher level being supported on the shell 31 of the bottle 30.
Each cavity 8 may have a projection, such as the projection 40 shown in dashed lines for one cavity 8, which protrudes upwards from the bottom 9 of the cavity 8 and can be accommodated in a recess on the underside of a bottle which has been placed in the cavity 8, for example between the ribs 35 of the barrel 32 of a bottle 30 of the type shown in Figure 4. Using projections 40 of this nature further limits the freedom of movement of the bottles, thus further increasing the stability of the bottles in a tray 1 and of a stack of trays 1 containing bottles.
It should be noted that a tray according to the invention can be used for bottles with a design which is different from the bottle 30 shown and illustrated. The stand section of the barrel 32 of the bottle 30 which, in the embodiment explained, is formed by the ribs 35 may, for example, consist of solid material, optionally provided with a recess allowing a projection which protrudes upwards from the bottom 9 of the cavity 8 to be accommodated therein. A tray according to the invention can even be used for bottles in which the lower base section, having substantially the shape and dimensions of the barrel 32, forms an integral part of the bottle.