Receptacles – Sectional – Telescoping
Patent
1994-03-02
1995-08-08
Moy, Joseph Man-Fu
Receptacles
Sectional
Telescoping
206218, B65D 616
Patent
active
054391288
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a three-dimensional structure of concentric rings, in particular a container of plastic material.
2. Description of Prior Art
Such known containers are relatively rigid. When not in use, they require a relatively large amount of space, unless several of such containers can be placed one inside the other, which is not always possible. This disadvantage has been recognized and a collapsible cup of aluminum or plastic, constructed of a plurality of ring elements, has been assigned for tourists. Such conventional cup can be pushed together to the height of these rings and therefore require less space in the backpack for example. However, it has one great disadvantage of not being absolutely fluid tight, it leaks when put down or even collapses, so that the contents are lost.
SUMMARY OF THE INVENTION
This invention again takes up this known concept by having as one object a structure of the previously mentioned type which can be collapsed and thus which requires little space when not in use, but without having the disadvantages of the conventional containers.
In addition to the mentioned containers, other structures, such as funnels or sunshades for cameras can also have a construction in accordance with this invention.
The three-dimensional structure in accordance with this invention is distinguished in that a plurality of concentric ring-shaped wall elements are disposed adjoining an innermost surface. Respectively adjoining wall elements have different inclinations and are connected with each other via a ring-shaped area of considerably smaller wall thickness in such a way that the wall elements are inclined to a greater degree and can be turned down over adjoining wall elements. The container is collapsible in this way. It is advantageous for all wall elements to be of approximately the same height because in this case, the container has the same height in the collapsed state as these elements. If approximately vertically extending wall elements are disposed between inclined wall elements, there is one advantage that it becomes immediately clear which wall elements can be turned down when the container is collapsed.
Further advantageous embodiments are described by the dependent claims and their operation and purpose will be explained in the following description .
BRIEF DESCRIPTION OF THE DRAWINGS
An exemplary embodiment of the subject of the invention is illustrated in the drawings. Wherein:
FIG. 1 is a partial cross-sectional view of a round container according to one preferred embodiment of this invention;
FIG. 2 is a partial cross-sectional view of the container shown in FIG. 1, but in a partially collapsed state; and
FIG. 3 is a partial cross-sectional view of a round container, according to another preferred embodiment of this invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
The innermost surface 1 of the container, namely a dish or cup, is constructed with a bottom, having a rim, the height h of which corresponds to the height h of all ring-shaped wall elements 20-22 and 30-32. The wall elements 20, 21, 22 are inclined at an angle with respect to the vertical, as shown in FIG. 1, while the ring-shaped wall elements 30, 31, 32 extend approximately vertically. The bottom and all ring-shaped wall elements 20-22 are connected by linear-shaped considerably thinner wall elements 40-45 which form film hinges over which an adjoining inclined wall element can be turned. FIG. 2 shows the turned-over position of the wall elements 20 and 21.
In the course of turning over the inclined wall element 20, the vertical wall element 30 was taken along and pulled down to the level of the rim of the bottom. The wall element 31 is taken along in the course of turning over the inclined wall element 21. The inclined wall element 22 and the adjoining vertical wall element 32 are still in the position in accordance with FIG. 1.
The sequence of collapsing can take place arbitrarily and could also start with the elements 22, 32. During the
REFERENCES:
patent: 1913652 (1933-06-01), Alexander
patent: 2899110 (1959-08-01), Parker
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