COLLAPSIBLE CONTAINER
A container includes a plurality of walls extending upward from a base. At least one support is movable between a retracted position and a support position. At least one magnet urges the support into one of the retracted position and the support position.
This application claims priority to U.S. Provisional Application No. 61/029,393, filed Feb. 18, 2008.
BACKGROUND OF THE INVENTIONThe present invention relates generally to collapsible crates and more particularly to a collapsible crate with support members for supporting another container thereon.
Collapsible crates are well known. Four walls each connected via a hinge to a base are selectively movable about the hinge between a use position, in which the wall is generally perpendicular to the base, and a collapsed position onto the base. Various latch mechanisms have been provided to connect adjacent walls at the corner to selectively lock the crate in the use position.
Some collapsible crates also include retractable supports so that another container can be supported thereon. One such crate includes end walls each having a support that is partially supported on the adjacent walls when in the support position.
SUMMARY OF THE INVENTIONThe present invention provides a collapsible container having a plurality of walls collapsible onto the base. At least one wall has a support pivotably mounted by a hinge below an upper end thereof. The support is pivotable between a support position where it can support another container thereon and a retracted position against the wall. In the support position, the lateral ends of the support are supported on the long walls. At least one magnet is provided in either one of the walls or the support (or both) to urge the support toward the support position. For example, like poles of magnets in the wall and in the support will permit the support to be forced into the retracted position, such as when the wall is collapsed onto the base or when moved by automated handling equipment, and will return the support to the support position when the wall is upright and the support is released by automated handling equipment.
In the particular embodiment shown, the supports are formed on short end walls of the container, such that the supports and end walls can be collapsed onto the base and the long side walls can be pivoted onto the end walls. Alternatively, the supports could be formed on the long walls (or on equally-sized walls).
Each end wall 18 has a support 20. The support 20 is pivotably mounted at its lower edge to a position spaced below an upper edge of the end wall 18. One of the supports 20 in
The end walls 18 each include magnets 27 that are polarized like adjacent magnets 29 in the supports 20. The magnets 27, 29 are aligned such that they urge the supports 20 away from the end walls 18 into the support position. The magnets 27, 29 could be separate magnets attached to, or insert molded with the end walls 18 and supports 20. Alternatively, the magnets 27, 29 could be electromagnets, or magnetized portions of the end walls 18 and supports 20, if magnetic additives such as metal flakes, powder or fibers were added to the plastic of which the end walls 18 and supports 20 are molded. Although the supports 20 are urged toward the support position, they can still be forced into the retracted position by automated handling equipment or when the end walls 18 are moved the collapsed position on the base 12, as shown in
Referring again to
In any arrangement, the magnets urge the support 20 toward the support position as shown in
Referring to
In accordance with the provisions of the patent statutes and jurisprudence, exemplary configurations described above are considered to represent a preferred embodiment of the invention. However, it should be noted that the invention can be practiced otherwise than as specifically illustrated and described without departing from its spirit or scope. Alphanumeric identifiers on method steps are for convenient reference in dependent claims and do not signify a required sequence of performance unless otherwise indicated in the claims.
Claims
1. A container comprising:
- a base;
- a plurality of walls extending upward from the base, the plurality of walls including a first wall and a second wall;
- a support mounted to the first wall and movable relative to the first wall between a retracted position and a support position; and
- at least one magnet on at least one of: the first wall, the second wall and the support; the at least one magnet urging the support toward one of the retracted position and the support position.
2. The container of claim 1 wherein the at least one magnet urges the support toward the support position.
3. The container of claim 1 wherein the at least one magnet is on the first wall.
4. The container of claim 1 wherein the at least one magnet is on the second wall.
5. The container of claim 1 wherein the at least one magnet is on the support.
6. The container of claim 1 wherein the plurality of walls are collapsible onto the base.
7. The container of claim 1 wherein the at least one magnet is a magnetized portion of the at least one of: the first wall, the second wall and the support.
8. The container of claim 1 wherein the support is partially supported on the second wall in the support position.
9. The container of claim 1 wherein the at least one magnet includes a first magnet on the support and a second magnet on the first wall.
10. The container of claim 1 wherein the at least one magnet includes a first magnet on the support and a second magnet on the second wall.
11. A method for operating a container including the steps of:
- a) moving a support between a support position in which another container could be supported thereon and a retracted position, wherein the support extends into a mouth of the container in the support position;
- b) urging the support contrary to a magnetic field during said step a); and
- c) releasing the support after said step b) to permit the support to be moved by the magnetic field toward one of the support position and the retracted position.
12. The method of claim 11 further including the step of collapsing a plurality of walls of the container onto a base of the container.
Type: Application
Filed: Feb 18, 2009
Publication Date: Aug 20, 2009
Inventor: Mauricio D. Cavalcante (Atlanta, GA)
Application Number: 12/372,782
International Classification: B65D 5/36 (20060101); B65D 8/14 (20060101);