Work cart

Abstract

The disclosure provides a work cart that comprises a bottom tray and a top tray, the bottom tray comprises a bottom face and a top face, with bottom tray side walls extending from the top face and defining together a bottom tray space, the top tray comprises a first face and a second face, with top tray side walls extending from the first face and defining together a top tray space. The work cart is convertible between a collapsed position at which the top tray rests over the bottom tray with the first face facing the top face, forming a confined space defined by the bottom tray space and the top tray space, and an extended position at which the top tray is supported by support members with the second face facing the top face, at a parallel, spaced apart relation.

Description

[0001] WORK CART

[0002] TECHNOLOGICAL FIELD

[0003] The present disclosure concerns a work cart (at times referred to as utility cart, work platform, hand truck, etc.). More particularly the present disclosure is directed to a collapsible work cart.

[0004] BACKGROUND ART

[0005] References considered to be relevant as background to the presently disclosed subject matter are listed below:

[0006] - US5,927,745

[0007] - US7, 806,426

[0008] - US8,814,199

[0009] - US11,325,627

[0010] Acknowledgement of the above references herein is not to be inferred as meaning that these are in any way relevant to the patentability of the presently disclosed subject matter.

[0011] BACKGROUND

[0012] US5,927,745 discloses a folding utility cart for a providing a movable work platform which may be raised and lowered without the use of tools. The cart employs an upper support member that is spaced apart from a lower support member by a pair of cross braces. A biasing spring helps raise the upper support member into an elevated position, and a releasable lock secures the upper support member into the elevated position. A lock release disengages the upper support member from the elevated position. The cart also has a handle, support feet, and wheels, allowing use in a conventional manner.

[0013] US7, 806,426 relates to an adjustable cart including a upper platform with a front portion and a back portion, a lower platform with a front portion and a back portion, rolling members for movably supporting the lower platform, a first supporting member connected to the back portion of the lower platform, and a first rotational pivot structure connecting the first supporting member to the back portion of the upper platform to permit pivoting about a first pivot location. The upper platform is configured to rotate about the first rotational pivot structure from a first position substantially parallel to the lower platform to a second position substantially perpendicular to the lower platform during which the first pivot location moves away from the lower platform.

[0014] US8,814,199 discloses a collapsible cart that provides substantial stability when operated. Enlarged inflatable or compliant rear wheels allow an operator to lift a front end of the cart to traverse rough surfaces as needed. Enlarged rear wheels are mounted outside an overhead profile of the collapsible cart thereby providing lateral and other stability. A first shelf, bucket or working surface may be collapsed to contact or mate with a second such shelf to create an easily transportable or storable collapsed structure. A telescoping handle allows a collapsed cart to serve as a hand dolly.

[0015] US11,325,627 discloses a foldable cart comprising an upper frame, a lower frame, and a plurality of legs attached to and supporting the upper frame and the lower frame is disclosed. Each leg is configured to be folded into a folded configuration from an erect configuration. Each leg comprises a lock configured to hold the leg in the erect configuration. The lock comprises a lock bar movable between a locking position and an unlocking position, an internal support brace, wherein the lock bar extends through the internal support brace, and a spring configured to bias the lock bar into the locking position to hold the leg in the erect configuration. The lock bar is spring-loaded against the internal support brace, wherein the entire length of the spring surrounds the lock bar, and wherein the spring is confined entirely within the internal support brace.

[0016] GENERAL DESCRIPTION

[0017] The present disclosure concerns a work cart that comprises a bottom tray and a top tray; said bottom tray comprising a bottom face and a top face, with bottom tray side walls extending from the top face and defining together a bottom tray space; said top tray comprising a first face and a second face, with top tray side walls extending from the first face and defining together a top tray space; the work cart being convertible between a collapsed position at which said top tray rests over the bottom tray, with the first face facing the top face, and forming a confined space defined by the bottom tray space and the top tray space, and an extended position at which the top tray is supported by support members, with the second face facing the top face, at a parallel, spaced apart relation.

[0018] The support members can be disposable between a stowed position, at which the support members are received within the confined space, and a deployed position, at which the support members are secured at bottom portions thereof to the bottom tray and at top portions thereof to the top tray, fixedly retaining the top tray at the extended position.

[0019] According to a particular embodiment, at the deployed position, the bottom portion of the support members can be secured within the bottom tray space, and a top portion of the support members can be secured within the top tray space.

[0020] Faces of one or both of bottom tray and the top tray can comprise one or more connectivity ports for detachably attaching thereto various utility modules. Connectivity ports can be defined in one or both of an inside surface or an outside surface of the bottom tray and the top tray.

[0021] The connectivity ports can be identical, i.e. configurable for detachably attaching thereto a designated type of one or more utility modules, or different types of connectivity ports can be provided, for detachably attaching thereto utility modules of different connectivity types.

[0022] The term "inside surface" denotes surfaces of the bottom tray and the top tray constituting wall portions of the bottom tray space and the top tray space, respectively, and the term "outside surface" denotes surfaces of the bottom tray and the top tray external to said bottom tray space and the top tray space.

[0023] The term 'utility module' is used hereinafter in its broad meaning and is meant to denote a variety of articles, such as storage containers, travel luggage, toolboxes, organizers, compacted work benches, cable storage, tools (e.g. hand tools, power generators and power sources), communication modules, carrying platforms, locomotion platforms, etc., of any shape and size, and wherein any utility module can be detachably attached to any other utility module.

[0024] Any one or more of the following features, designs and configurations can be associated with any one or more of the aspects of the present disclosure, individually or in various combinations thereof: • At the collapsed position, at least a top portion of the bottom tray side walls can overlap with at least a portion of the top tray side walls, whereby at the collapsed position the work cart assumes a box-like shape;

[0025] • At the collapsed position, at least a top portion of the bottom tray side walls can be received within the top tray portion;

[0026] • The support members can be constituted by four support legs, which at the deployed position are disposed at respective corners of the top tray and the bottom tray;

[0027] • Two support legs of said four support legs extending at each side of the work cart, and can be connected to one another to form reinforced frame structures;

[0028] • A reinforced frame structure can comprise a top bar / bridge member extending between two support legs, wherein said top bridge member is engageable at a side portion of the second face of the top tray;

[0029] • The support members can be pivotally articulated at respective comer portions of the top face of the bottom tray;

[0030] • The work cart can comprise a support member locking mechanism configured for arresting the support members at least at the deployed position;

[0031] • The support member locking mechanism can be associated with the leg members at each side of the bottom tray, and can be jointly operated with the leg members between respective locked and unlocked positions by a common lever extending between the leg members;

[0032] • The support member locking mechanism can be independently associated with each of the leg members;

[0033] • The support member locking mechanism can be a quick-release mechanism;

[0034] • The support member locking mechanism can be a screw-fastener;

[0035] • The support member locking mechanism can be a snap lock mechanism;

[0036] • The support member locking mechanism can be a geometric arresting arrangement, wherein a bottom portion of the support legs is snugly received within receptacles defined at a top face of the bottom tray; • The support legs can be extendible (e.g. by a telescopic or a folding mechanism);

[0037] • At the deployed position, the support members can extend substantially normal to the top face and the second face;

[0038] • The work cart can comprise a top tray locking mechanism for detachably attaching top portions of the support members to the second face of the top tray;

[0039] • The top face of the bottom tray can comprise, at respective side portions thereof, a receptacle for receiving bottom portions of the support members, constituting a geometric locking arrangement;

[0040] • The second face of the top tray can comprise, at respective side portions thereof, a receptacle for snugly receiving top portions of the support members;

[0041] • The top tray locking mechanism can be a snap articulation mechanism, comprising a spring biased plunger / latch at one of the top tray and at least one of the support members, said latch being engageable with a corresponding arresting location at the other one of the top tray and said at least one of the support members;

[0042] • The top tray locking mechanism can comprise a latch release member extending at an outside side face of the top tray;

[0043] • The support members can extend from respective sides portions of the top face of the bottom tray;

[0044] • At the stowed position, the support members from one side of the bottom tray can be disposed atop support members at an opposite side of the bottom tray;

[0045] • At the deployed position the support members extending from opposite sides of the top face can form an X - like configuration;

[0046] • The work cart can comprise a locking mechanism for securely locking the top tray over the bottom tray at the collapsed position;

[0047] • At least the top tray and the bottom tray are made of polymeric material;

[0048] • The work cart can comprise a set of wheels;

[0049] • The wheels of the work cart can be detachably attachable at the bottom face of the bottom tray;

[0050] • The bottom face of the bottom tray can comprise wheel attaching sockets for readily attaching / detaching wheels thereto; • The wheels of the work cart can be stored within the confined space;

[0051] • One or both of the top face of the bottom tray and the first face of the top tray can comprise wheel attaching sockets for detachably attaching the wheels within the confined space, when the collapsed position;

[0052] • The wheels can be lockable, to prevent rolling and / or swiveling;

[0053] • The work cart can comprise one or more handles, on one or both of top tray and bottom tray;

[0054] • The one or more handles can be fixed, collapsible, or detachable;

[0055] • The one or more handles are disposable between an erect position (projecting out of the confined space) and a stored position at which said one or more handles are at least partially received within said confined space;

[0056] • The handles can be constituted by depressions formed at one or more side walls of one or both of the top tray and the bottom tray.

[0057] BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to better understand the subject matter that is disclosed herein and to exemplify how it may be carried out in practice, embodiments will now be described, by way of non-limiting example only, with reference to the accompanying drawings, in which:

[0059] Fig. 1A is a top perspective view of the work cart, at its fully collapsed position;

[0060] Fig. IB is a bottom perspective view of Fig. 1 A;

[0061] Figs. 2A-2B are top perspective views of the work cart, with the top tray open to expose elements within the top tray and the bottom tray;

[0062] Fig. 3A is a top perspective view of the work cart, with external components assembled;

[0063] Fig. 3B is a bottom view of Fig. 3 A, when wheel at an exploded view;

[0064] Fig. 3C is a section along line 3C - 3C in Fig. 3A;

[0065] Fig. 4A is top perspective view at a first step of deploying the work cart;

[0066] Fig. 4B is a section along line 4B - 4B in Fig. 4A;

[0067] Fig. 4C is a section along line 4C - 4C in Fig. 4A;

[0068] Figs. 4D to 4G are consecutive steps of deploying the work cart;

[0069] Fig. 4H is a top, left perspective view of the deployed work cart of Fig. 4F;

[0070] Fig. 41 is an enlargement of the portion marked 4H in Fig. 4B; Fig. 5A is a section along line 5A - 5A in Fig. 4G;

[0071] Fig. 5B is an enlargement of the portion marked 5B in Fig. 5A;

[0072] Fig. 5C is a section taken along line 5C - 5C in Fig. 5B;

[0073] Fig. 5D is a section taken along line 5D - 5D in Fig. 5A;

[0074] Fig. 5E is an enlargement of the portion marked 5E in Fig. 5D;

[0075] Fig. 5F is an enlargement of the portion marked 5F in Fig. 5D;

[0076] Fig. 5G is an enlargement of the portion marked 5G in Fig. 5D;

[0077] Fig. 5H is a locally sectioned view along line 5H - 5H in Fig. 4G;

[0078] Fig. 51 is a locally sectioned view along line 51 - 51 in Fig. 4G; and

[0079] Fig- 6 illustrates locomoting the work cart at a collapsed state, at a tilt carrying mode.

[0080] DETAILED DESCRIPTION OF EMBODIMENTS

[0081] Attention is first directed to Figs. 1A-2B, showing a work cart according to an example of the disclosure, generally designated 10, illustrated at a fully collapsed position, and having a generally rectangle shape.

[0082] The work cart comprises a bottom tray 14 and a matching, top tray 16, both made of injection molded polymer. The bottom tray 14 comprises a bottom face 18 and a top face 20, with side walls (i.e. front wall, back wall and two side walls, collectively designated 22) extending from the top face 20, and defining together a bottom tray space 25.

[0083] Likewise, the top tray 16 comprises a first face 30, a second face 32, with side walls (i.e. front wall, back wall and two side walls, collectively designated 36) extending from the first face 30, and defining together a top tray space 38.

[0084] The bottom tray space 25 and the top tray space 38 give rise together to a confined space 39 (Fig. 3C; i.e. when said top tray rests over the bottom tray).

[0085] The side walls 22 of the bottom tray 14 comprise a narrowed top side wall portion 40 with an intermediate peripheral shoulder portion 42. The arrangement is such that at the collapsed position of the work cart 10, at least a bottom portion of the side walls 36 of the top tray 16 overlap said top side wall portion 40, and with a bottom rim 44 of side walls 36 resting over peripheral shoulder portion 42, in a box-like arrangement.

[0086] The external dimensions of top side wall portion 40 (of the bottom tray 14) corresponds with inside dimensions of side walls 36 (of the top tray 16), whereby at the collapsed position, the two trays 14 and 16 are firmly positioned over one another, and are lockable to one another by a latch fastener generally designated 46, comprising a pair of latch couplers 48 (extending from side walls of the top tray 16), and a latch arresting rib 49 (extending from side walls 22 of the bottom tray 14), configurable for securing the top tray 16 to the bottom tray 14.

[0087] The second face 32 and side walls 36 of the top tray 16 comprise a plurality connectivity ports 50, for detachably attaching thereto various utility modules (not shown). It is, however, appreciated that connectivity ports can be applied to any inside or outside surface of the bottom tray and / or the top tray (not shown). The connectivity ports 50 can be identical, i.e. configurable for detachably attaching thereto a designated type of utility modules or different types of connectivity ports can be provided, for detachably attaching thereto utility modules of different connectivity types.

[0088] The work cart 10 further comprises four caster wheels 65 which at the collapsed position, can be contained within the confined space 39 (as illustrated in Figs. 2A-2B). The wheels 65 comprise a connectivity plate 68, detachably attachable to the bottom face 18 of the bottom tray 14, by wheel attaching sockets 70 that are disposed at respective corners, whereby the wheels 65 can be readily attached / detached to the work cart 10 through engagement of the connectivity plate 68 to said wheel attaching sockets 70. Likewise, the wheels can be secured within the confined space 39 by respective stow wheel attaching sockets (not shown) disposed at inside surface portions of the work cart, where such sockets can be any wheel arresting arrangement. According to an embodiment of the disclosure, locomotive wheels can be a priori secured to the bottom tray of the work cart.

[0089] Once attached to the bottom face 18, the wheels 65 serve for locomoting the work cart 10 at either the collapsed position by rolling the four wheels 65 over a ground surface, or by pulling at a carrying handle 74 at an inclined position (Fig. 6), or at the extended position by rolling over the four wheels.

[0090] Handle 74 is a priori detached from side wall of the top tray 16 and at the collapsed position can be received within the confined space 39 (Figs. 2A-2B). However, according to another example, the handle 74 can be a priori attached to the top tray (or integrally formed therewith). Handle 74 is useful for maneuvering the work cart 10 and, optionally, one or more additional handles 76 (Figs. 4G, 4H) can be fitted at opposite front / rear / side walls of the work cart 10, and more specifically at the top tray 16. Work cart 10 further comprises support members 88A,88B, in this example four support legs articulated at their bottom end portions at respective corners within the bottom tray space 25, as will be explained hereinafter, such that a pair of support legs 80A,80B is disposed at each of opposite respective sides of the work cart 10 and are connected to one another by at their top end by a top bar / bridge member 86A, 86B, to form two opposite reinforced support frame members 88A, 88B, respectively (best seen in Figs. 4D-4F). It is seen that at their stowed position, the support members 88A,88B are folded over one another and are received with the confined space 39.

[0091] Typically, support legs 80A,80B and bridge members 86A, 86B are made of metal (e.g. aluminum), though they may alternatively be made of composite material.

[0092] As can be seen, best in Figs. 41 and 5F, the top face 20 of the bottom tray 14 is configured at each of its four respective comers with a U-shaped support leg receptacle 90, wherein a bottom portion 94 of the support legs 80A,80B is slidingly displaceable in and out of said support leg receptacles 90, between a stowed (folded) position (e.g. Figs. 4B and 4C) and a deployed position (e.g. Figs. 5 A and 5F). At the deployed position, the bottom portions 94 are snugly fitted within the support leg receptacles 90 for increasing leg stability, though in addition to this geometric arresting arrangement, there may be provided a support member locking mechanism 98 for arresting the support members 88A,88B at least at the deployed position. In the illustrated example, each leg member of one of support members 88A,88B is fastened by a lock bolt 100, jointly manipulable by a locking bar 102 extending between bolts 100 of the legs of the support members, whereby the locking mechanism of both legs can be simultaneously manipulated to lock / unlock.

[0093] The locking mechanism 98 is configurable for arresting the respective support legs / members at either the stowed position, and at the deployed position. It is appreciated that other locking mechanisms can be utilized (not shown), e.g. fast lock mechanisms, and further wherein the locking mechanism of each leg can be independently operated.

[0094] Manipulating the support members between the support members 88A,88B between the stowed position into the deployed position takes place by first releasing the respective locking mechanism 98, then pivotally displacing the support frame about the bottom end portions thereof, into the deployed position, and allowing the end portions to drop into the support leg receptacles 90, whereupon the locking mechanism 98 is locked again, to secure the fastened support members 88A,88B at the deployed position. In the illustrated example, the legs 80A,80B are of fixed length, though it is noted that according to other embodiments of the disclosure the legs can be extendable, e.g. by a telescopic or folding mechanism (not shown).

[0095] The top bar / bridge members 86A,86B each have a polygonal (rectangle-like) shape, though with inclined / champers top edges 112 (best seen in Figs. 5C, 5E), with a locking recess 114 (Figs. 5B, 5C) at a central portion thereof.

[0096] Top tray 16 is formed at respective side portions of the second face 32 with an elongate bridge member receptacle 120, having a cross section adapted for snugly receiving a bridge member 86A,86B, constituting a geometric arresting arrangement. In addition, there is a top tray locking mechanism 124 (Figs. 5A - 5C) in form of a snap articulation mechanism, comprising a spring biased locking plunger / latch 130 biased by coiled spring 132 to penetrate into the bridge member receptacle 120, with a release lever 136, manipulation of which entails retraction of the latch 130 from said bridge member receptacle 120.

[0097] The arrangement is such that the bridge members 86A,86B can easily displace into the bridge member receptacle 120 owing to the inclined portions 112, and will spontaneously be arrested by latch 130 (also chamfered) snaping into arresting the locking recess 114 of the bridge members 86A,86B, at a secure, rigid fashion. Detaching the top tray from the support members 88A,88B is easily done, by manipulating release lever 136 so as to cause retraction of plunger / latch 130, whereby the top tray is removable.

[0098] In use, the work cart 10 is convertible between several positions:

[0099] 1. A collapsed position, wherein said top tray rests over the bottom tray, with the first face facing the top face, and giving rise to a confined space defined by the bottom tray space and the top tray space. The collapsed position comprising two sub-positions: a. Stowed position (Figs. 1A-2B) wherein external components (e.g. wheels 65, handle 74) are detached and stowed within the confined space 39 of the work cart 10; b. Assembled position (Figs. 3A - 3C) wherein the external components (e.g. wheels 65, handle 74) are assembled over external faces of the work cart, however the support members 88A,88B are yet collapsed and received within the confined space 39 of the work cart 10. At this position, according to the illustrated examples, the work cart 10 can be locomoted over wheels 65, as discussed hereinbefore; and

[0100] 2. An extended position (Figs. 4G, 4H), wherein the top tray 16 is supported by support members 88A,88B at their deployed position, with the second face 32 facing the top face 20 of the bottom tray 14, at a parallel, spaced apart relation.

[0101] The process of transferring the cart from the collapsed position to the extended position involves the following steps:

[0102] First, the work cart is positioned with the bottom face 18 placed on a ground surface, then, the latch fasteners 46 are released and the top tray 16 is removed and placed nearby (Figs. 2A-2B) at an upside-down position, i.e. placed over second face 32. Then the handle 74 and four wheels 65 are removed and attached at their respective locations (Fig. 3B).

[0103] Next, the support members 88A,88B are swingingly displaced (in direction of arrows 150) from their stowed position into their upright, deployed position, allowing the bottom portion 94 of the support legs 80A,80B to drop into support leg receptacles 90 (in direction of arrow 152 in Fig. 5F), followed by fastening the support member locking mechanism 98 by rotating locking bar / lever 102.

[0104] Finally, the top tray 16 (at its upright position, namely with second face 32 facing downwards) is placed over the support members 88A,88B and displaced downwards, in direction of arrow 156 in Fig. 4F, into locking arresting over the top bar / bridge members 86A,86B, whereby the locking plunger 130 snaps into arresting the locking recess 114 of the top bar / bridge members 86A,86B, whereby the second face 32 of the top tray 16 faces the top face 20 of the bottom tray 14, wherein said trays 14 and 16 are fixedly positioned at a parallel, spaced apart relation, (Figs. 4G, 4H) such that the work cart 10 is in its extended, ready for use, position.

[0105] Collapsing the work cart 10 from its extended position (Figs. 4G, 4H) into its collapsed position is performed by first releasing the top tray locking mechanism 124 by manipulating release lever 136 and simultaneously lifting the top tray 16 (in direction opposite to that of arrow 152).

[0106] Then, the support member locking mechanism 98 is unlocked by rotating bar locking bar 102 to release locking bolts 100, whereby the support members 88A,88B can be lifted so that the bottom end portions 94 disengage from the U-shaped support leg receptacle 90. The support members 88A,88B can then be folded over one another (swing in direction opposite with arrows 150), whereby the top tray 16 can be placed over the bottom tray and articulated thereto by latch fastener 46. If desired, wheels 65 and handle 74 can be detached and stowed within the confined space 39.

Claims

CLAIMS:

1. A work cart comprising a bottom tray and a top tray; said bottom tray comprising a bottom face and a top face, with bottom tray side walls extending from the top face and defining together a bottom tray space; said top tray comprising a first face and a second face, with top tray side walls extending from the first face and defining together a top tray space; the work cart being convertible between a collapsed position at which said top tray rests over the bottom tray with the first face facing the top face, forming a confined space defined by the bottom tray space and the top tray space, and an extended position at which the top tray is supported by support members with the second face facing the top face, at a parallel, spaced apart relation.

2. The work cart of claim 1, wherein the support members are disposable between a stowed position at which the support members are received within the confined space, and a deployed position at which the support members are secured at bottom portions thereof to the bottom tray and at top portions thereof to the top tray, fixedly retaining the top tray at the extended position.

3. The work cart of claim 1 or 2, wherein at the deployed position, a bottom portion of the support members is secured within the bottom tray space, and a top portion of the support members is secured within the top tray space.

4. The work cart of any one of claims 1 to 3, wherein at the collapsed position, at least a top portion of the bottom tray side walls overlap with at least a portion of the top tray side walls, whereby at the collapsed position the work cart assumes a box-like shape.

5. The work cart of any one of claims 1 to 3, wherein at the collapsed position at least a top portion of the bottom tray side walls is bottom tray are received within the top tray portion.

6. The work cart of any one of claims 1 to 5, wherein the support members are four support legs, which at the deployed position are disposed at respective corners of the top tray and the bottom tray.

7. The work cart of claim 6, wherein two support legs of said four support legs extend at each side of the work cart, and being connected to one another to form reinforced support member frame structures.

8. The work cart of any one of claims 1 to 7, wherein the support members form a reinforced frame structure that comprises a top bridge member extending between two support legs, wherein said top bridge member is engageable at a side portion of the second face of the top tray.

9. The work cart of any one of claims 1 to 8, wherein the support members are pivotally articulated at respective comer portions of the top face of the bottom tray.

10. The work cart of any one of claims 1 to 9, comprising a support member locking mechanism, configured for arresting the support members at least at the deployed position.

11. The work cart of claim 10, wherein the support member locking mechanism is associated with leg members at each side of the bottom tray; said locking mechanism being jointly operated with the leg members between respective locked and unlocked positions by a common lever extending between the leg members.

12. The work cart of claim 10, wherein the support member locking mechanism is independently associated with each of the leg members.

13. The work cart of claim 10, wherein the support member locking mechanism is a geometric arresting arrangement, wherein a bottom portion of the leg members being snug received within receptacles defined at the top face of the bottom tray.

14. The work cart of any one of claims 1 to 13, wherein the support members are extendible.

15. The work cart of any one of claims 1 to 14, wherein at the deployed position, the support members extend substantially normal to the top face and the second face.

16. The work cart of any one of claims 1 to 15, comprising a top tray locking mechanism for detachably attaching a top portion of the support members to the second face of the top tray.

17. The work cart of claim 16, wherein the top tray locking mechanism is a snap articulation mechanism, comprising a spring biased plunger at one of the top tray and the at least one of the support members, said plunger is engageable with a corresponding arresting location at the other one of the top tray and said at least one of the support members.

18. The work cart of claim 16, wherein the top tray locking mechanism comprises a latch release member extending at an outside side face of the top tray.

19. The work cart of any one of claims 1 to 18, wherein the top face of the bottom tray comprises, at respective side portions thereof, a receptacle for receiving bottom portions of the support members, constituting a geometric locking arrangement.

20. The work cart of any one of claims 1 to 19, wherein the second face of the top tray comprises, at respective side portions thereof, a receptacle for snugly receiving top portions of the support members.

21. The work cart of any one of claims 1 to 20, wherein the support members extend from respective side portions of the top face of the bottom tray.

22. The work cart of any one of claims 1 to 21, wherein at the stowed position, the support members at one side of the bottom tray are disposed atop support members at an opposite side of the bottom tray.

23. The work cart of any one of claims 1 to 22, comprising a locking mechanism for securely locking the top tray over the bottom tray at the collapsed position.

24. The work cart of any one of claims 1 to 23, wherein the work cart comprises a set of wheels for locomoting the work cart.

25. The work cart of claim 24, wherein wheels are detachably attachable at the bottom face of the bottom tray.

26. The work cart of claim 24 or 25, wherein the bottom face of the bottom tray comprises wheel attaching sockets for readily attaching / detaching wheels thereto.

27. The work cart of any one of claims 24 to 26, wherein the wheels of the work cart are storable within the confined space.

28. The work cart of any one of claims 24 to 27, wherein one or both of the top face of the bottom tray and the first face of the top tray comprise wheel attaching sockets for detachably attaching the wheels within the confined space, when at the collapsed position.

29. The work cart of any one of claims 1 to 28, comprising one or more handles, on one or both of the top tray and the bottom tray.

30. The work cart of claim 29, wherein the one or more handles are disposable between an erect position in which the handles project out of the confined space, and a stored position in which the handles are at least partially received within said confined space.

31. The work cart of any one of claims 1 to 30, wherein faces of one or both of bottom tray and the top tray comprise one or more connectivity ports for detachably attaching thereto various utility modules.

32. The work cart of claim 31, wherein the connectivity ports are defined in one or both of an inside surface or an outside surface of the bottom tray and the top tray.

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