COLLAPSIBLE STORAGE CONTAINER
A storage container includes a rectangular frame formed from pivotally connected bottom, top, left, and right panels and is therefore collapsible into a flat state to have a largely reduced volume to enable convenient storage and transport thereof at reduced cost. Any two of the four panels that are adjacent to each other are provided at joints with tenons and corresponding mortises. When the rectangular frame is in a standup state with the corresponding tenons and mortises engaged with one another, the mutually pivotally turnably connected panels of the storage container are held in place to always keep the storage container in a stable and upright position.
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The present invention relates to a collapsible storage container, and more particularly to a storage container that could be extended into a stably standup state for holding different items therein or collapsed into a flat state to occupy only a small space to enable convenient storage, package, and transport at reduced cost.
BACKGROUND OF THE INVENTIONA storage container is designed to provide a specific internal space for holding different items therein, and therefore has a fixed volume. The internal space of the storage container has direct relation to the overall volume of the storage container. When the internal space is large, the storage container would have a relatively large overall volume, too.
It is known freight is an important part of the total cost of a product. The conventional storage container is usually a fixed type box that could not be collapsed and therefore occupies a relatively large space when being stored, packed, and transported and inevitably increases the warehousing and transporting costs thereof.
There is commercially available a box-type storage container formed from pivotally connected metal wire nets. While this type of storage container is collapsible to reduce an overall volume occupied by it, the storage container in an erected state has weak structural strength and tends to sway. Moreover, since there are many large through holes on the metal wire nets, the storage container formed from such metal wire nets fails to provide good shielding function to the stored items. Therefore, such collapsible storage container with metal wire nets and weak structural strength can only be applied to some small organizers for holding non-important items.
In view of the big space occupied by the conventional fixed-type storage container and the weak structure of the conventional collapsible metal wire net container, it is tried by the inventor to develop a collapsible storage container that could be collapsed into a flat state to occupy only a small space and be conveniently and economically stored, packed, and transported, or be extended into a stably standup state for holding different items.
SUMMARY OF THE INVENTIONA primary object of the present invention is to provide a collapsible storage container that can be collapsed into a flat state to largely reduce the space occupied by the container and thereby facilitates convenient and economical storage, package, and transport thereof.
Another object of the present invention is to provide a collapsible storage container that can be extended from a collapsed state into a stably standup state for holding different items therein.
To achieve the above and other objects, the collapsible storage container according to the present invention includes a bottom, a top, a left, and a right panel pivotally turnably connected to one another to form a rectangular frame.
The bottom panel is provided at left and right front ends with an upward projected substantially T-shaped tenon each, and the left and right panels are provided at respective lower front end with a T-shaped mortise. When the left and right panels are pivotally turned into an upright position and moved forward relative to the bottom panel, the two T-shaped tenons on the bottom panel are received in the T-shaped mortises on the left and right panels to firmly hold the left and right panels in place relative to the bottom panel. Similarly, the top panel is provided at left and right front ends with a downward projected reverse T-shaped tenon each, and the left and right panels are provided at respective upper front end with a reverse T-shaped mortise. When the left and right panels are pivotally turned into an upright position and moved forward relative to the top panel, the two reverse T-shaped tenons on the top panel are received in the reverse T-shaped mortises on the left and right panels to firmly hold the left and right panels in place relative to the top panel.
In the collapsible storage container of the present invention, the bottom panel is provided at left and right rear ends with a reverse T-shaped mortise each, and the left and right panels are provided at respective lower rear end with a downward extended reverse T-shaped tenon. When the left and right panels are pivotally turned into an upright position and moved forward relative to the bottom panel, the two downward reverse T-shaped tenons on the left and right panels are received in the reverse T-shaped mortises on the bottom panel to more firmly hold the left and right panels in place relative to the bottom panel. Similarly, the top panel is provided at left and right rear ends with a T-shaped mortise each, and the left and right panels are provided at respective upper rear end with an upward extended T-shaped tenon. When the left and right panels are pivotally turned into an upright position and moved forward relative to the top panel, the two upward T-shaped tenons on the left and right panels are received in the T-shaped mortises on the top panel to more firmly hold the left and right panels in place relative to the top panel.
The collapsible storage container of the present invention in a standup position may have a back panel and a door mounted to a rear and a front open side of the rectangular frame, respectively, so that a closed receiving space may be defined in the storage container.
On or more shelves or drawers may also be provided in the storage container of the present invention to increase the uses thereof.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
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The left and right panels 30, 40 may be pivotally turned about the shafts 31 & 32, 41 & 42 relative to the top and bottom panels 20, 10 into a standup rectangular frame, as shown in
When the standup storage container is not in use, it may be collapsed for convenient storage without occupying too much space. To do so, first move the left and right panels 30, 40 rearward relative to the bottom and top panels 10, 20, so that the T-shaped tenons 112 & 122, 35 & 45, and the reverse T-shaped tenons 212 & 222, 36 & 46 are moved out of respective corresponding T-shaped mortises 34 & 44, 213 & 223 and reverse T-shaped mortises 33 & 43, 113 & 123, as shown in
It is noted the right wall portion 12 of the bottom panel 10 is slightly higher than the left wall portion 11, and the right wall portion 22 of the top panel 20 is slightly shorter than the left wall portion 21. In this manner, when the storage container is collapsed into the flat state, the left wall portion 11 of the bottom panel 10 would not interfere with the turning of the left panel 30 to the horizontal position, and the right wall portion 22 of the top panel 20 would not compress against the right panel 40. The left panel 30 and the right panel 40 have the same height. The four pairs of shafts 31 & 32, 41 & 42 pivotally connecting the left and the right panel 30, 40 to the top and the bottom panel 20, 10 actually form four vertexes of a parallelogram. Therefore, the bottom and the top panel 10, 20 are always located in a horizontal position during and after the collapse of the storage container. With the predetermined height differences between the wall portions 11 and 12 of the bottom panel 10 as well as between the wall portions 21 and 22 of the top panel 20, the left and right panels 30, 40 of the fully collapsed storage container are always in a horizontal position, allowing the fully collapsed storage container to have a minimized overall thickness.
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The storage container of
The storage container of the present invention is formed from pivotally turnably connected panels, and can therefore be collapsed from a standup state into a flat state having a minimized volume to facilitate convenient storage, package, and transport thereof at reduced cost. The storage container of the present invention may also be mounted with shelves, doors, and drawers to enable varied usages and increased value thereof.
Claims
1. A collapsible storage container, comprising:
- a bottom panel being provided with a left wall portion and a right wall portion upward extended from two upper lateral edges of the bottom panel; the upward left and right wall portions being provided at predetermined positions with two recesses each, which are internally provided with an annular ring each to define an axial central through hole; and the upward left and right wall portions being provided at respective front end with an upward projected substantially T-shaped tenon;
- a top panel being provided with a left wall portion and a right wall portion downward extended from two lower lateral edges of the top panel; the downward left and right wall portions being provided at predetermined positions with two recesses each, which are internally provided with an annular ring each to define an axial central through hole; and the downward left and right wall portions being provided at respective front end with a downward projected substantially reverse T-shaped tenon;
- a left panel being provided at an upper edge with two longitudinally extended shafts corresponding to the two recesses at the downward left wall portion of the top panel to axially movably extend through the central holes of the annular rings in the two recesses, and at a lower edge with two longitudinally extended shafts corresponding to the two recesses at the upward left wall portion of the bottom panel to axially movably extend through the central holes of the annular rings in the two recesses, such that the left panel is pivotally turnable about the shafts at the upper and the lower edge thereof relative to the top and the bottom panel, respectively; and the left panel being provided at an upper front surface with a reverse T-shaped mortise for engaging with the downward extended reverse T-shaped tenon provided at the front end of the left wall portion of the top panel, and at a lower front surface with a T-shaped mortise for engaging with the upward extended T-shaped tenon provided at the front end of the left wall portion of the bottom panel; and
- a right panel being provided at an upper edge with two longitudinally extended shafts corresponding to the two recesses at the downward right wall portion of the top panel to axially movably extend through the central holes of the annular rings in the two recesses, and at a lower edge with two longitudinally extended shafts corresponding to the two recesses at the upward right wall portion of the bottom panel to axially movably extend through the central holes of the annular rings in the two recesses, such that the right panel is pivotally turnable about the shafts at the upper and the lower edge thereof relative to the top and the bottom panel, respectively; and the right panel being provided at an upper front surface with a reverse T-shaped mortise for engaging with the downward extended reverse T-shaped tenon provided at the front end of the left wall portion of the top panel, and at a lower front surface with a T-shaped mortise for engaging with the upward extended T-shaped tenon provided at the front end of the right wall portion of the bottom panel.
2. The collapsible storage container as claimed in claim 1, wherein the bottom panel is provided at a rear left and a rear right end with a reverse T-shaped mortise each, and the left and right panels are provided at respective lower rear end with a downward projected reverse T-shaped tenon to be fitly received in the reverse T-shaped mortises at the rear left an rear right ends of the bottom panel, respectively.
3. The collapsible storage container as claimed in claim 1, wherein the top panel is provided at a rear left and a rear right end with a T-shaped mortise each, and the left and right panels are provided at respective upper rear end with an upward projected T-shaped tenon to be fitly received in the T-shaped mortises at the rear left and rear right ends of the top panel, respectively.
4. The collapsible storage container as claimed in claim 1, wherein the annular rings on the bottom and top panels are provided at respective top with an axial groove to communicate the central through holes of the annular rings with external space; and the shafts on the left and right panels are provided at respective front end with a size-reduced flat section, at where the shafts are separately guided into the central through holes of corresponding annular rings via the axial grooves.
5. The collapsible storage container as claimed in claim 1, wherein the right wall portion of the bottom panel is slightly higher than the left wall portion of the bottom panel, and the right wall portion of the top panel is slightly shorter than the left wall portion of the top panel; the left panel and the right panel have the same height; and the four pairs of shafts at the upper and lower edges of the left and right panels pivotally connecting the left and the right panel to the top and the bottom panel actually form four vertexes of a parallelogram.
6. The collapsible storage container as claimed in claim 1, wherein the bottom panel is provided at and along an inner side of the left wall portion thereof with a flat-topped belt portion that has a top lower than that of the left wall portion, and at and along an outer side of the right wall portion thereof with a flat-topped belt portion that has a top higher than that of the right wall portion, such that when the left and right panels are pivotally turned into an upright position, a lower edge surface of the left panel is pressed against the belt portion at the inner side of the left wall portion of the bottom panel, and a lower edge surface of the right panel is pressed against the belt portion at the outer side of the right wall portion of the bottom panel.
7. The collapsible storage container as claimed in claim 1, wherein the top panel is provided at an outer side of the left wall portion thereof with a flat-topped belt portion that has a bottom higher than that of the left wall portion, and at an inner side of the right wall portion thereof with a flat-topped belt portion that has a bottom higher than that of the right wall portion, such that when the left and right panels are pivotally turned into an upright position, an upper edge surface of the left panel is pressed against the belt portion at the outer side of the left wall portion of the top panel, and an upper edge surface of the right panel is pressed against the belt portion at the inner side of the right wall portion of the top panel.
8. The collapsible storage container as claimed in claim 1, further comprising a back panel for closing a rear open side of a rectangular frame formed from the bottom, the top, the left, and the right panel.
9. The collapsible storage container as claimed in claim 8, wherein the back panel is provided at upper, lower, left, and right edges with at least one protrusion each; and wherein the top, bottom, left, and right panels are provided at respective inner side on an edge adjacent to the back panel with a channel corresponding to the protrusions at the upper, lower, left, and right edges of the back panel, respectively, for engaging with the protrusions.
10. The collapsible storage container as claimed in claim 1, further comprising a door, and an upper and a lower hinge device for mounting the door to a front open side of a rectangular frame formed from the bottom, the top, the left, and the right panel; each of the upper and lower hinge devices including a pivot shaft and two locating pins; the locating pins of the upper and lower hinge devices being inserted into two pin holes correspondingly provided at predetermined positions on an inner front side of the top and the bottom panel, respectively; and the pivot shaft of the upper and the lower hinge device being respectively received in a retaining slot correspondingly provided at an inner upper and an inner lower corner of the door.
11. The collapsible storage container as claimed in claim 1, further comprising at least one shelf and at least one pair of rails for supporting the shelf thereon; and wherein the left panel is correspondingly provided on inner front and rear edge surfaces with at least one rail holder each, so that at least one rail may be horizontally held to and between two corresponding rail holders on the inner side of the left panel, and the right panel is correspondingly provided on inner front and rear edge surfaces with at least one rail holder each, so that at least one rail may be horizontally held to and between two corresponding rail holders on the inner side of the right panel; whereby the at least one shelf may be horizontally supported on the at least one pair of rails correspondingly held to the left and the right panel to thereby divide an internal space of the storage container into at least an upper and a lower subspace.
12. The collapsible storage container as claimed in claim 1, further comprising at least one drawer and at least one pair of rails for slidably supporting the drawer thereon; and wherein the left panel is correspondingly provided on inner front and rear edge surfaces with at least one rail holder each, so that at least one rail may be horizontally held to and between two corresponding rail holders on the inner side of the left panel, and the right panel is correspondingly provided on inner front and rear edge surfaces with at least one rail holder each, so that at least one rail may be horizontally held to and between two corresponding rail holders on the inner side of the right panel; whereby the at least one drawer may be horizontally supported on the at least one pair of rails correspondingly held to the left and the right panel.
Type: Application
Filed: Dec 5, 2007
Publication Date: Jun 11, 2009
Applicant: PROTREND CO., LTD. (Taipei)
Inventor: Henry Chen (Taipei)
Application Number: 11/950,888