Universal top cap

Abstract

The invention is directed to a universal top cap having structure for securely mating with and supporting a pallet, or a steel mesh container or a collapsible container. The top cap includes an upper support surface having an upwardly extending lip structure along a perimeter of the upper surface. The upper surface is also provided with recesses and protrusions which enable the top cap to mate with the various items.

Claims

1. A top cap comprising: an upper support surface having a generally rectangular outer perimeter, a first side, a second side opposing the first side, a first end and a second end opposing the first end, the upper support surface including: a first structure configured to be able to support a pallet, the first structure including a first rectangular recess proximate the first side and extending from the first end to the second end, a second rectangular recess proximate the second side and extending from the first end to the second end, and a third rectangular recess between the first recess and the second recess and extending from the first side to the second side; a second structure configured to be able to support a steel mesh container; and a third structure configured to be able to support a collapsible container having a plurality of feet, the third structure including an upwardly extending protrusion proximate a middle portion of the first recess, and an upward extending protraction proximate a middle portion of the second recess, wherein the structure for supporting the pallet and the structure for supporting a steel mesh container comprises an upwardly extending protrusion in the first recess proximate the first corner of the upper support surface, an upwardly extending protrusion in the first recess proximate the second corner of the upper support surface, an upwardly extending protrusion in the second recess proximate the third corner of the upper support surface, and an upwardly extending protrusion in the second recess proximate the fourth corner of the upper support surface.

2. The top cap of claim 1 wherein each of the plurality of protrusions has a generally cylindrical shape.

3. The top cap of claim 1 further comprising a plurality of angled segments along the perimeter of the upper support surface for accommodating straps used to secure the top cap to a container.

4. The top cap of claim 1 wherein each of the first recess, second recess and third recess include a first protrusion and a second protrusion proximate a first end of the upper support surface.

5. The top cap of claim 4 wherein each of the first recess, second recess and third recess include a third protrusion and a fourth protrusion proximate a second end of the upper support surface.

6. The top cap of claim 5 wherein each of the first recess, second recess and third recess include a fifth protrusion proximate a middle portion of the upper support surface.

7. The top cap of claim 1 wherein the top cap is formed from plastic.

8. A top cap of claim 1 comprising: an upper support surface having a generally rectangular outer perimeter, a first side, a second side opposing the first side, a first end and a second end opposing the first end, the upper support surface including: a first structure configured to be able to support a pallet, the first structure including a first rectangular recess proximate the first side and extending from the first end to the second end, a second rectangular recess proximate the second side and extending from the first end to the second end, and a third rectangular recess between the first recess and the second recess and extending from the first side to the second side; a second structure configured to be able to support a steel mesh container; and a third structure configured to be able to support a collapsible container having a plurality of feet, the third structure including an upwardly extending protrusion proximate a middle portion of the first recess, and an upward extending protraction proximate a middle portion of the second recess, wherein the top cap includes a lower lip structure extending downward from the perimeter of the top cap.

9. The top cap of claim 8 further comprising a plurality of ribs extending downward from a lower surface of the top cap opposing the upper support surface.

10. The top cap of claim 8 wherein the lower lip structure includes a first notch and a second notch spaced from the first notch along a first side of the top cap, and a first notch and a second notch spaced from the first notch along a second side of the top cap, wherein the notches facilitate use of a first and second fork tine to lift a stack of the top caps.

11. A top cap comprising: an upper support surface having a generally rectangular outer perimeter, a first side, a second side opposing the first side, a first end and a second end opposing the first end, the upper support surface including: a first structure configured to be able to support a pallet, the first structure including a first rectangular recess proximate the first side and extending from the first end to the second end, a second rectangular recess proximate the second side and extending from the first end to the second end, and a third rectangular recess between the first recess and the second recess and extending from the first side to the second side; a second structure configured to be able to support a steel mesh container; and a third structure configured to be able to support a collapsible container having a plurality of feet, the third structure including an upwardly extending protrusion proximate a middle portion of the first recess, and an upward extending protraction proximate a middle portion of the second recess, having a first raised portion between the first recess and the third recess, and a second raised portion between the second recess and the third recess, and wherein the first raised portion and the second raised portion include channels for matting with lower structure of another transport system.

12. A top cap comprising: an upper support surface having a generally rectangular outer perimeter, a first side, a second side opposing the first side, a first end and a second end opposing the first end, the upper support surface including: a first structure configured to be able to support a pallet, the first structure including a first rectangular recess proximate the first side and extending from the first end to the second end, a second rectangular recess proximate the second side and extending from the first end to the second end, and a third rectangular recess between the first recess and the second recess and extending from the first side to the second side; a second structure configured to be able to support a steel mesh container; and a third structure configured to be able to support a collapsible container having a plurality of feet, the third structure including an upwardly extending protrusion proximate a middle portion of the first recess, and an upward extending protraction proximate a middle portion of the second recess, wherein the upper lip structure has a double wall construction.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) To understand the present invention, it will now be described by way of example, with reference to the accompanying drawings in which:

(2) FIG. 1 is a perspective view of a top cap in accordance with the present invention;

(3) FIG. 2 is a side view of the top cap of FIG. 1;

(4) FIG. 3 is an end view of the top cap of FIG. 1;

(5) FIG. 4 is a top plan view of the top cap of FIG. 1;

(6) FIG. 5 is an elevational view of the bottom of the top cap of FIG. 1;

(7) FIG. 6 is a perspective view of the top cap of the present invention on a container;

(8) FIG. 7 is a partial perspective view of the top cap of the present invention supporting a pallet;

(9) FIG. 8 is a partial perspective view of the top cap of the present invention supporting a steel mesh container;

(10) FIG. 9 is a partial perspective view of the top cap of the present invention supporting a collapsible container; and,

(11) FIG. 10 is a cross-sectional view of the top cap of FIG. 1 along the line 10-10 in FIG. 4.

DETAILED DESCRIPTION

(12) While this invention is susceptible of embodiments in many different forms, there is shown in the drawings and will herein be described in detail preferred embodiments of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspect of the invention to the embodiments illustrated.

(13) A top cap 10 in accordance with the present invention is shown in FIGS. 1-5. The top cap 10 has a generally rectangular outer perimeter surrounding an upper support surface 12. The upper surface 12 includes a first side 14, an opposing second side 16, a first end 18 and an opposing second end 20.

(14) The support surface includes structure designed to mate with the bottom structure of a variety of other transportation systems (i.e., systems for transporting goods such as pallets, bins, containers, etc.) to enable such systems to securely stack on the upper surface 12 of the top cap 10.

(15) The structure in the upper support surface 12 includes a plurality of raised lip portions 22 extending upward from the perimeter of the upper surface 12. The lip portions 22 are in each of the four corners of the upper support surface 12. Each lip portion 22 includes a segment 24 extending along one of the sides 14, 16 of the upper surface 12, and a segment 26 extending along on of the ends 18, 20 of the upper surface 12.

(16) The upper surface 12 includes a first recess 28 proximate the first side 14, a second recess 30 proximate the second side 16, and a third recess 32 in a mid-portion of the upper surface 12. Each of the recesses 28, 30, 32 includes a plurality of upwardly extending protrusions 34—two of which are proximate each of the ends 18, 20 and one in the middle of each recess 28, 30, 32. Each of the protrusions 34 has a generally cylindrical (or slightly conical) outer surface shape with a flat upper surface.

(17) The upper surface 12 of the top cap 10 also includes a first raised portion 36 between the first recess 28 and the third recess 32, and a second raised portion 38 between the second recess 30 and the third recess 32. Each of the raised portions 36, 38 includes channels 40 depressed therein. The channels 40 can be used to support all or a portion of the bottom structure of a transport system.

(18) The perimeter of the upper surface 12 also includes a number of angled segments or grooves 42 along the first and second sides 14, 16, and the first and second ends 18, 20. The angled segments 42 are sized to accommodate straps used to hold the top cap 10 to a container or other transport system.

(19) The top cap 10 also includes a lower lip structure 44 extending downward from the perimeter of the upper surface 12. The lower lip structure 44 extends over the top portions of the side walls 46 and end walls 48 of a container 50 as illustrated in FIG. 6. As more clearly seen in FIG. 2, the lower lip structure 44 includes notches 52 along the sides of the top cap 10. These notches 52 facilitate placement of the top cap 10 on fork tines. This makes transporting stacks of top caps 10 easier.

(20) As illustrated in FIG. 5, the top cap 10 includes a plurality of ribs 54 extending downward from a lower surface 56 of the upper support surface 12. The ribs 54 provide strength and rigidity to the top cap 10.

(21) Referring to FIGS. 6-9, when the top cap 10 is positioned on the top of a transport system, such as the container 50, it can be used to securely mate with and support a number of other transport systems placed on the container 50. Specifically, the top cap 10 is configured to support any of a pallet, a mesh steel container and a collapsible container.

(22) FIG. 7 shows the container 50 and top cap 10 with a pallet 58 stacked on top of the top cap 10. FIG. 8 shows a steel mesh container 60 stacked on top of the top cap 10, and FIG. 9 shows a collapsible container 62 (which can be similar or identical to the container 50 on which the top cap 10 rests) stacked on the top cap 10. In each instance, placement of the upwardly extending lip structure 22 in the four corners prevents any of the transport systems from sliding off the top cap 10.

(23) As illustrated in the cross-sectional view of FIG. 10, the upwardly extending lip structure 22 has a double wall construction. As shown, the lip segment 26 has an outer wall 64 and an inner wall 66 connected to the outer wall 64 at a top edge.

(24) Many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood within the scope of the appended claims the invention may be protected otherwise than as specifically described.