The present invention relates to plastics containers of the type described in the preamble to claim 1.
Containers of this type are widely used, particularly for containing food products in general catering.
The principal object of the present invention is to produce a container which is more hygienic than known containers and in which it is possible to remove the cover from the container without the cover being provided with a gripping member.
This object is achieved by the characteristic which is the subject of claim 1.
Further characteristics and advantages of the present invention will become clear from the description which follows with reference to the appended drawings, provided purely by way of non-limiting example, in which:
FIG. 1 is a perspective view of the container,
FIG. 1a is a detail FIG. 1 on an enlarged scale,
FIG. 2 is an exploded view of the container,
FIG. 3 is a perspective view of the body of the container from below,
FIG. 4 is a section taken on the line IV--IV of FIG. 1 on an enlarged scale, and
FIG. 5 is a section taken on the line V--V of FIG. 1 on an enlarged scale.
The container illustrated in the drawings comprises a body 1 which is in the form of a substantially parallelepipedal bowl with rounded corners, and is closed at the top by a cover 2.
The body 1 is provided with four lateral walls 3 connected to each other by curved surfaces and with a flat bottom 4.
The walls 3 are inclined to the vertical by an angle A of the order of 5.degree. and have an upper zone 3a projecting outwardly to form a step which constitutes a support surface for stacking a plurality of containers.
At its rounded corners, the projecting zone 3a has a part 3b which extends downwardly to limit the support between stacked containers to the corner zones.
The edge of the body 1 is provided with an outer flange of rectangular outline; this flange has a part 5 which is inclined to the horizontal by an angle B of the order of 15.degree..
The flange has a peripheral edge 6 bent vertically downwardly and, at each of the corner zones, the flange has a substantially triangular flat zone 5a between the inclined part 5 and the bent edge 6.
At the vertex of each of the triangular zones 5a, the bent edge 6 of the flange 5 has a bevel 6a at approximately 45.degree. in its central lower part so as to provide a gripping tab 7 in its central upper part.
The gripping tab 7 serves for the lifting of the body 1 when the container rests, by means of the edge 6 of its flange 5, on the edge of a support surface S (illustrated with broken lines in FIG. 4) provided with an aperture in which the container is accommodated, as occurs when the container is used to contain foods for general catering.
In this use, the inclined part 5 of the flange serves to make any liquids which may fall on the flange drain outwardly.
The cover 2 has a shallow tray-shaped part 9 having a rectangular outline with rounded corners and intended to enter the container 1, and a peripheral flange having a rectangular outline similar to that of the flange of the body 1. The flange of the cover 2 has a downwardly-inclined inner part 8a intended to rest on the more inclined part 5 of the flange of the body 1, and an upwardly-bent peripheral part 8b. In each of the corner zones, the flange of the cover 2 has a substantially triangular flat zone 8c between the parts 8a and 8b.
Due to the different inclinations and the different lengths of the parts 5 and 8, the flange of the cover 2 rests only on the inner edge of the part 5 of the flange of the body 1, so that a space remains between the flat parts 8c, 5a of the two flanges which facilitates removal of the cover. In fact, the exertion of a pressure near the vertex of one of the flat zones 8c of the flange of the cover 2 causes a small upward rotation of the cover 2 relative to the body 1, so as to enable the cover to be gripped at the opposite side.
The body 1 and the cover 2 are preferably produced in transparent material and are provided on their outer surfaces with a slightly raised pattern 10 in the form of intersecting segments in various orientations.
This pattern does not reduce the transparency of the container but prevents any surface scratching of the container, which may occur during use, from becoming visible, enabling the original appearance of the container to be maintained with time.