COLLAPSABLE CONTAINER

Abstract: A collapsable container is defined comprising: a container base (12), a plurality of support members (20) extending generally upwardly from the container base (12) and a plurality of wall members (14A, 14B, 14C, 14D) each mounted to at least one respective support member via hinge means (21A, 21B, 21C, 21D). Each wall member is movable between an erected position wherein the wall member extends generally away from the container base and a collapsed position wherein the wall member generally overlays the container base. Each wall member has top bottom and side edges extending between inner and outer faces. The inner face lies closer to the container base than the outer face in the collapsed position. The hinge means comprises a hinge pin (34) extending between each wall member and respective support member. The hinge pin is rotatably supported at one or both of the wall member and support member, and is located on the side edge closer to the inner face than the outer face and closer to the bottom edge than the top edge. The wall members are mounted such that in the collapsed position they generally overlay each other adjacent the container base so that each is generally parallel thereto.

Description: "COLLAPSABLE CONTAINER" TECHNICAL FIELD The present invention relates to a collapsable container and in particular to a collapsable container that can be used as a portable building, and as a cargo container on ocean going vessels and on land transport vehicles. The invention has been developed primarily for these uses and will be described hereinafter with reference to these applications. However, it should be appreciated that the invention is not limited to these particular fields of use. BACKGROUND ART With both portable buildings and cargo containers, arrangements are known which can be disassembled and transported as compact assemblies to be reassembled when required for use. Many of these arrangements have been characterised by a degree of difficulty in the disassembly and reassembly steps, that is, these steps have often required the use of heavy tools and have been cumbersome and time consuming. Some of these containers are in the assembled form in the collapsed position (i.e. members joined to each other by various means) . However, the joining arrangements of the various members to each other and the container base, have varied from being complex to cumbersome and from frail to excessively robust. Furthermore, erection of some of these containers has necessitated the performance of a number of intermediate steps, such as fastening of members to each other and the addition of extra members or materials, such as doors, lining, windows etc. Conversely, some of these containers are in the form of a "kit of parts" in the disassembled form. Thus it has been necessary during assembly to reconnect, for example, the walls to the base, roof to the walls etc.; SUBSTITUTE SHEET (disassembly being the reverse of this procedure) . It has' sometimes also been necessary to attach wall inner and outer linings subsequent to wall erection, due to the container formation in the collapsed position not allowing prior attachment. It would be preferable if these cumbersome and time consuming steps, often requiring the use of special tools, could be avoided. It would also be preferable if a container could be rapidly erected from the collapsed position for immediate use and that such a container be satisfactorily and/or aesthetically finished and weather proof (e.g. sealed) immediately upon erection. Furthermore, if a container could be provided that is compact, easily transportable and stackable with like containers r this would minimise transportation costs. It is an aim of at least preferred form(s) of the present invention to provide a collapsible container which ameliorates the above deficiencies in a simple yet effective manner, or which will at the very least provide the public with a useful choice. DISCLOSURE OF THE INVENTION The present invention provides a collapsable container comprising: a container base; - a plurality of support members extending generally upwardly from the container base; and a plurality of wall members, each mounted to at least one respective support member via hinge means and moveable between an erected position wherein the wall member extends generally away from the container base and a collapsed position wherein the wall member generally overlays the container base, each wall member having top, bottom and side edges extending between inner and outer faces, the inner face lying closer to the container base than the outer face in the SUBSTITUTE SHEET [ collapsed position, the hinge means comprising a hinge pin extending between each wall member and respective support member, the hinge pin being rotatably supported at one or both of the wall member and support member, and the hinge pin being located on the side edge closer to the inner face than the outer face and closer to the bottom edge than the top edge. Preferably the bottom edge of each wail member is arranged in the erected position to abut the container base, or a surface generally parallel to the container base. Preferably said surface is an upwardly disposed face of a panel, the panel extending generally upwardly from the container base and the wall member being vertically aligned with and above the panel when in the erected position. The preferred hinge means arrangement of the present invention enables a rapid erection of the container, and also enables the wall members to lie in the collapsed position with internal and/or external cladding fixed thereon. In a more preferred form of the present invention, when a wall member is mounted to the container base such that in the erected position the wall member bottom edge abuts to sit squarely against either: (i) the container base; or (ii) a panel projecting upwardly from the container base and presenting an upwardly disposed opposing face against which the bottom edge abuts; the orientation of the hinge means of the present invention prevents the wall member rotating beyond the erected position (i.e. prevents the wall member when rotated from the collapsed position to the erected SUBSTITUTESHEET 52 - 4 - position from rotating beyond the erected position and outwardly away from the container ) . The preferred hinge means arrangement of the present invention also ena b les each wall member to be provide d with internal and/or external cladding such that w h en each wall member is in the erected position, the external cladding can extend from the top to at least the bottom edge of the wall member, and preferably beyond the bottom edge. The hinge means also enables the internal cladding to be arranged such that when in the erected position the cladding can extend downwardly either to the bottom edge of the wall member or to corresponding internal cladding extending upwardly from the container base optionally mounted to the panel (and in such an arrangement, the amount of corresponding internal cladding required would depend on the wall members relative proximity to the container base) . The side, top and bottom edges of the wall member can be provided with sealing means (e.g. in the form of rubber sealing strips) as can the abutment surfaces of the wall member with the upwardly extending internal and external cladding panels. In this way, a container can be provided that is immediately sealed upon erection. Preferably the hinge pin is located on the side edge and adjacent the bottom edge of the wall member. Preferably the hinge pin is located on the side edge such that it is equidistantly offset from the outer edge and bottom edge. Preferably the hinge pin is received for rotation in a corresponding recess -in one or both of the side edge and support member. More preferably the hinge pin is fixed to the side edge and is rotatable within the support member. Typically the hinge pin would be mounted to a body portion for retaining in the side edge and would extend from the body portion for receipt in the support member. SUBSTITUTE SHEET The body portion can be a generally rectangular block and the hinge pin can be a generally cylindrical member extending orthogonally from one face of the rectangular' block and being offset from the centre of this face. Preferably the generally cylindrical member is rotatably retained in a corresponding cylindrical recess in the support member. Preferably the body portion is arranged in the side edge such that the hinge pin is parallel to the inner face and projects orthogonally from the side edge. The body portion may then be arranged at the corner of the wall member where the side edge meets the bottom edge. Preferably each support member is arranged between a respective pair of wall members adjacent the side edge on each wall member such that each wall member is rotatably mounted to a pair of support members via- a respective pair of hinge pins. Preferably each wall member is rotatable about an axis of rotation between the erected and collapsed positions, the axis extending through the hinge pins on either side of the wall member. Preferably each wall member is mounted at a position on its respective support member such that in the collapsed position, the wall members generally overlay each other adjacent the container base so that each is generally parallel thereto. It is preferable that the support members extend upwardly from the base to a height greater than the height of the wall members in the collapsed position, the support members being adapted such that when the wall members are in the collapsed position, the support members can inter-engage corresponding support members on a like container to enable stacking of the containers. Preferably, the container is provided with a roof member mountable on the plurality of wall members when in the erected position to enclose the container. Preferably the roof member is also engageable with the plurality of support members when the wall members are in the collapsed position. When engaged with the support members in the- collapsed position, the roof member can also be adapted to receive corresponding support members on a like container to enable stacking of the containers. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figures 1 to 4 detail respectively four elevations of a collapsable container embodying the invention and shown in the form of a portable building; Figure 5 shows a perspective view of a corner section of the portable building of Figures 1 and 4; Figures 6 and 7 show a sectional side elevation through a wall member and preferred hinge means for the portable building; Figures 8 and 9 detail respectively side and end views of the preferred hinge means for use in the portable building. MODES FOR CARRYING OUT THE INVENTION Referring to the drawings, the collapsable container is hereinafter described in a preferred form as a portable building 10. The building has a floor 12, walls 14 and a roof IS. The walls are hingedly mounted to the floor at their base 17 via support members in the form of posts 20 at hinge points 21. Figures 1 to 4 and Figure 5 show the portable building in an erected position, in which the walls extend orthogonally upwardly from the floor. Four respective elevations are shown in Figures 1 to 4 in which the walls are designated respectively 14A, - 14B, 14C and 14D. The walls 14 , B, C and D are mounted on the posts at respective hinge points 21A, B, C and D. SUBSTITUTESHEET The hinge points are at progressively increasing distances from the floor. When the walls are displaced towards a collapsed position (e.g. the walls overlay each other such that each wall is approximately parallel to the floor) the relative positioning of the walls on the posts enables the attainment of a compact collapsed formation. Thus, in the form shown in Figures 1 to 4, wall 14A would be layed adjacent the floor first, wall 14B second, wall 14C third and wall 14D last. It can also be seen in Figures 1 to 4 that walls 14A and 14B are held in the erected position between walls 14C and 14D respectively. Thus the side walls of walls 14A and 14B abut against the inner wall surfaces of walls 14C and 14D respectively in the erected position. A rubber sealing strip can be provided between the side walls and respective inner wall surfaces so that the walls immediately seal the four corners of the building upon erection. The building is also provided with panels 22B, C and D which extend from the floor up to walls 14B, C and D respectively. These panels function to provide a continuous internal and external wall surface from the floor to the roof. A rubber sealing strip may also be provided between each panel on an upper face of the panel, and the respective wall base adjacent thereto, to seal any space between the wall base and its respective panel in the erected position. In addition to this, the wall member may have external cladding which extends downwardly beyond the highest point of the panel (see Figure 6) optionally having a sealing strip located between the external cladding and an outer face of the panel. This further facilitates sealing of the building and can enhance the overall aesthetic appearance of the structure. Referring to Figure 5, the panels 22 have been removed to reveal more clearly the hinge points 21A and SUBSTITUTE SHEET 2 - _ 21D ' o t h e wall b ases 17 are eac h provide d T h e corners of t h e wax Fi _ r ures 8 and 9). , βv{ce 30 ( detailed m Figur e . -ith a hxnge device 3 0 I ^^ ^ ^.^ „ -ha hinge device 30 has a y ^^ orchogonally the wall l *- a Cylindr c t re of a face 35 of the from, and offset from the centre, body- received in a corresponding * cylindrical p_ - ece* w . chin the recess in the post 20 and i s free reCe st 2 0 is provided with leg ^ ^^ * SUBSTITUTE SHEET and any attempt to displace the wall outwardly is resisted by pin 34 and the square or flush orientation of base 17 on panel upper face 42. The underside of roof 16 is provided with means for engaging the upper edges of walls 14 (not shown) which means can also engage posts 20 when the walls of the portable building are in the collapsed position, the roof being arranged on top of the four posts respectively at its four corners. The upper side of the roof is also provided with means for engaging post legs 20A. Thus an identical portable building can be arranged on top of the roof 16. (Alternatively, the identical portable building can be stacked directly on the posts with the roof removed) . In this way, a sizeable stack of compact collapsed portable buildings can be achieved which stack may be easily transported. The preceding description applies equally to cargo containers. Thus, when not in use, collapsable containers according to the invention can be rapidly disassembled and stacked in a compact and space saving way, also saving on transportation costs. Typically the containers are formulated from pressed metal with the frames being welded together from metal sections. Whilst the invention has been described with reference to a particular embodiment it will be appreciated that the invention can be embodied in many other forms. SUBSTITUTE SHEET

Claims: 2 ιQ CLAIMS: A co ll apsa bl e container comprisin g: a container base; . a plurality of support members extend i ng generally upwardly from the container b ase ; and . a plurality of wall members, each mounted to at least one respective support member v i a h i nge means -a„nrtd mmoovveeaa b -liee b -e-tween an erecte d pos i t i on _____ the wall member extends generally away "rom the container b ase and a collapsed pos i t i on _____ the wall member generally overlays the container base, each wall member hav i ng top b ottom an d si d e e d ges extending between i nner an d outer f aces, the inner face lying closer t o the container b ase than the outer face m the ■ SS TrR ising a hinge pin extending _etween each wall mem b er and respective support ___ the hinge pin being rotatab l y supporte d aTone or b oth of the wall member and support mem b er, an d the hinge pin being located on the side edge closer to the inner face than the outer f ace an d closer to the bottom edge than t h e top edge. Λ collapsa b le container as claime d in claim 1 , coii ft . mem b er is Whereln a ^ erected pos-tion to a b ut the ______ ~ ~ I surface generally parallel to t h e container base. _ collapsable container as claimed in claim 2 herein said surface is an upwardly disposed face of _ panel, the panel extending generally upwardly from __T container base and the wall member be i ng SUBSTITUTE SHEET vertically aligned with and above the panel when in the erected position. 4. A collapsable container as claimed• in any one of claims 1 to 3 wherein the hinge pin is located on the side edge and adjacent the bottom edge of the wall member. 5. A collapsable container as claimed in any one of claims 1 to 4 wherein the hinge pin is located on the side edge such that it is equidistantly offset from the outer edge and bottom edge. 6. A collapsable container as claimed in any one of claims 1 to 5 wherein the hinge pin is received for rotation in a corresponding recess in one or both of the side edge and support member. 7. A collapsable container as claimed in any one of claims l to 6 wherein the hinge pin is fixed to the side edge and is rotatable within the support member. 8. A collapsable container as claimed in any one of claims 1 to 7 wherein the hinge pin is mounted to a body portion for retaining in the side edge and extends from the body portion for receipt in the support member. 9. A collapsable container as claimed in claim 8 wherein the body portion is a generally rectangular block and ' the hinge pin is a generally cylindrical member extending orthogonally from one face of the rectangular block and offset from the centre of this face. S UBSTITUTESHEET A collapsable container as claimed in claim 8 or claim 9 wherein the body portion is arranged m the side edge such that the hinge pin is parallel to the inner face and projects orthogonally from the side edge. A collapsable container as claimed in any one of claims 8 to 10 wherein the body portion is arranged at the comer of the wall member where the side edge meets the bottom edge. A collapsable container as claimed in any one of the preceding claims wherein each support member i s arranged between a respective pair of wall members adjacent the side edge on each wall member such that each wall member is rotatably mounted to a pa i r of support members via a respective pair of hinge pins. A collapsable container as claimed in claim 12 wherein each wall merger is rotatable about an ax i s of rotation between the erected and collapsed positions, the axis extending through the hinge pms on either side of the wall member. A collapsa b le container as claimed in any one of the preceding claims wherein each wall member is mounted at a position on its respective support member such that in the collapsed position, the wall members generally overlay each other adjacent the container base, so that each is generally parallel thereto. A collapsable container as claimed in any one of the preceding claims wherein the support members extend upwardly from the base to a height greater than the height of the wall members in the collapsed position, the support members being adapted such SUBSTITUTE SHEET that when the wall members are in the collapsed position, the support members can inter-engage corresponding support members on a like container to enable stacking of the containers. 16. A collapsable container as claimed in any one of the preceding claims further comprising a roof member mountable on the plurality of wall members when in the erected position to enclose the container. 17. A collapsable container as claimed in claim 16 wherein the roof member is engageable with the plurality of support members when the wall members are in the collapsed position, such that the roof member can be adapted to receive corresponding support members on a like container to enable stacking of the containers. 18. A collapsable container substantially as herein described with reference to Figures 1 to 4 of the accompanying drawings. SUBSTITUTE SHEET [received by the International Bureau on 23 December 1992 (23.12.92); original claims 1-18 replaced by amended claims 1-18 (4 pages)] 1. A collapsable container comprising: a container base; a plurality of post members extending generally upwardly from the container base; 5 - a plurality of wall members, each mounted between a respective pair of post members via hinge means and moveable between an erected position wherein the wall member extends generally away from the container base and a 0 collapsed position wherein the wall member generally overlays the container base, each wall member having top, bottom and side edges extending between inner and outer faces, the inner face lying closer to the container base than the outer face in the collapsed position, the hinge means comprising a pair of hinge pins each extending between a side edge of a wall member and a respective post member, each hinge pin being rotatably supported at one or both of the wall member and post member and located on the side edge closer to the inner face than the outer face and closer to the bottom edge than the top edge; each post member being adapted to receive and/or support a hinge pin of one of the wall members and additionally comprising receiving means extending laterally from the post member, the receiving means being adapted for receiving and/or supporting a hinge pin of an adjacent ' wall member; such that when each wall member is in the erected position, the arrangement of the receiving means enables sealing engagement between said one of the wall members and said adjacent wall member to sealingly define the container outer wall. 2. A collapsable container as claimed in claim 1, wherein the receiving means comprises a lug projecting laterally from each post member a predetermined height above the container base and adapted to receive the respective hinge pin of said adjacent wall member. 3. A collapsable container " as claimed in claim 1 or claim 2, wherein sealing engagement between said one of the wall members and said adjacent wall member is facilitated by the provision of sealing means which is operable therebetween when said one of the wall members and said adjacent wall member are in the erected position. 4. A collapsable container as claimed in claim 3, wherein the sealing means is arranged on each side edge of each adjacent wall member. 5. A collapsable container as claimed in claim 3 or claim 4, wherein the sealing means comprises one or more elastomeric sealing strips, the or each strip running longitudinally along each side edge of each adjacent wall" member and engagingly deforming against the respective wall member when in the erected position to seal the container outer wall. 6. A collapsable container as claimed in any one of claims 1-5, wherein the bottom edge of each wall member is arranged in the erected position to abut the container base, or a surface generally parallel to the container base. 7. A collapsable container as claimed in claim 6, wherein said surface is an upwardly disposed face of a panel, the panel extending generally upwardly from the container base and the wall member being vertically aligned with and above the panel when in the erected position. 8. A collapsable container as claimed in claim 7, wherein each wall member has cladding mounted to its outer face which extends beyond the bottom edge of the wall member, which cladding is parallel to and adjacent the wall member's respective panel when in the erected position and which assists in sealingly defining the container outer wall in the erected position. 9. A collapsable container as claimed in any one of claims 1 to 8 wherein the hinge pins are located on the side edges and adjacent the bottom edge of each wall member and each hinge pin is located so that it is equidistantly offset from the outer edge and bottom edge. 10. A collapsable container as claimed in any one of claims 1 to 9 wherein each hinge pin is received for rotation in a corresponding recess in its respective side edge and/or is received for rotation in a post member or receiving means respectively. 11. A collapsable container as claimed in any one of claims 1 to 10 wherein -each hinge pin is mounted to a body portion for retaining in its respective side edge and extends from the body portion for rotational receipt in the post member or receiving means respectively, and wherein the body portion is a generally rectangular block and the hinge pin is a generally cylindrical member extending orthogonally from one face of the rectangular block and offset from the centre of this face. 12. A collapsable container as claimed in claim 11 wherein the body portion is arranged in the side edge such that the hinge pin is parallel to the inner face and projects orthogonally from the side edge and is arranged at the corner of the wall member where the side edge meets the bottom edge. 13. A collapsable container as claimed in any one of the preceding claims, ■ wherein each wall member is rotatable about an axis of rotation between the erected and collapsed positions, the axis extending through the pair of hinge pins. 14. A collapsable container as claimed in any one of the preceding claims wherein each wall member is mounted at a position with respect to its adjacent post members and above the container base such that in the collapsed position, the wall members generally overlay each other and/or the container base, so that each is generally parallel thereto. 15. A collapsable container as claimed in any one of the preceding claims wherein the post members extend upwardly from the base to a height greater than the height of the wall members in the collapsed position, the post members being adapted such that when the wall members are in the collapsed position, the post members can inter-engage corresponding post members on a like container to enable stacking of the containers. 16. A collapsable container as claimed in any one of the preceding claims further comprising a roof member mountable on the plurality of wall members when in the erected position to enclose the container. 17. A collapsable container as claimed in claim 16 • wherein the roof member is engageable with the plurality of post members when the wall members are in the collapsed position and is adapted to receive corresponding post members on a like container to enable stacking of the containers. 18. A collapsable container substantially as herein described with reference to Figures 1 to 4 of the accompanying drawings. STATEMENT UNDER ARTICLE 19 An amendment has been made to claim 1 and dependent claims pursuant to the International Search Report. The plurality of support members are now more specifically referred to as "post members". Each post member is now defined as including a receiving means which extends laterally from the post member and which is adapted for receiving and/or supporting a hinge pin of an adjacent wall member. This enables adjacent wall members to come into sealing alignment in the erected position. The receiving means and sealing arrangement has been further defined in new claims 2 to 5. An additional new claim 8 has been added to indicate that the arrangement of the collapsable container further enables the mounting of cladding which assists in sealing the outer wall of the container in the erected position. The remaining claims are of essentially the same scope as the as fifed claims. With reference to the amendment to claim 1 , none of the citations of the International Search Report provide a receiving means that extends laterally from a post member and which is adapted for receiving and/or supporting a hinge pin of an adjacent wall member. It is this arrangement which enables the container outer wall to come directly into a sealing arrangement upon the movement of the wall members into the erected position. Thus no additional fixing of accessories or additional steps are required to seal the container. This principle is not disclosed in

Inventors: WARREN GARY F, WARREN, GARY, FREDRICK
Applicants: WARREN GARY FREDRICK, WARREN, GARY, FREDRICK
Application year: 1992
Main classification: B65D88
IPC codes: B65D6, B65D88, E04B1