CARGO SUPPORT SYSTEM
The combination of: a) a storage unit associated with an over-the-road vehicle, the storage unit having an internal wall surface bounding a storage space and including spaced and facing first and second wall surfaces and a floor surface; and b) a cargo support system. The cargo support system has first and second vertically extending tracks operatively mounted on each to the first and second wall surface and at least a first elongate beam having spaced first and second ends attached respectively to the first and second tracks in an operative position spaced above the floor surface. At least one of the tracks is maintained operatively mounted to the first wall surface through the use of an adhesive.
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1. Field of the Invention
This invention relates to cargo support systems and, more particularly, to a system for maintaining cargo in an elevated position relative to a floor surface in a storage space in over-the-road vehicles.
2. Background Art
The freight hauling industry has become increasingly competitive. Higher fuel costs have reduced margins. To remain competitive, entities are required to maximize utilization of cargo storage space in over-the-road vehicles, such as semi-trailers.
The assignee herein has developed cargo storage systems for such vehicles which allow more complete utilization of the upper volume of storage spaces which commonly is not occupied by cargo that is stacked from the floor upwards. The assignee herein offers, among other options, a system which it identifies as its Lift-A-Deck™ system. The Lift-A-Deck™ system utilizes vertically extending logistic tracks that are secured to facing side walls on such trailers. The tracks have a low profile so as not to occupy any significant volume of the usable storage space. Beams span between the tracks and may directly support cargo or panels upon which cargo can be placed. The tracks permit releasable connection of the beams at different heights that are selected based upon the configuration of the cargo.
With most trailers, these tracks can be integrated into the side walls of the trailer by using a series of fasteners that secure the tracks to framework in the side walls at spaced intervals from the floor to the roof of the vehicle. These fasteners will typically be directed through panels bounding the storage space and into reinforcing posts and other framework within the panels or to which the panels are secured.
While the same need for these elevated cargo supports exists in trailers that have a heated or cooled internal environment, modification of these conventionally constructed trailers to provide elevated supplemental cargo support surfaces presents problems, particularly with respect to mounting the tracks that support the spanning beams. These trailers are commonly constructed with insulated panels that have an insulating material between encasing layers or skins. These panels may extend substantially the full height of the storage space. These panels may lack a rigid structural framework that will support fasteners to positively secure the beam supporting tracks in a securely fixed position.
Incorporating framework into these panels during initial manufacture detrimentally changes their insulating properties such as R value, thereby decreasing efficiency of operation.
Insulating properties might also be compromised by directing fasteners into the panels without adequate internal structural framework. This may additionally compromise the overall integrity of these panels, which could lead to shifting or, in a worst case, release of the supplemental supporting structure. Penetration of these panels by fasteners may also make them prone to the detrimental ingress of environmental moisture, which may be absorbed by the insulating material.
Since the majority of the area of the insulated panels is not equipped to support penetrating fasteners, the only practical method of supporting beams in existing trailer units to this point has been to provide an independent framework that is primarily self-supporting. The vertical beam support components would thus be required to project into the storage volume, taking up valuable space that could otherwise be used to accommodate cargo.
While a need for supplemental, elevated cargo support in refrigerated trailers has existed, the industry has not devised a practical design that is commercially feasible in terms of being structurally sound while at the same time not taking up any appreciable amount of usable cargo space. The ability to retrofit existing cargo units with conditioned internal environments has particular value but, to date, has not been practically achievable.
SUMMARY OF THE INVENTIONIn one form, the invention is directed to the combination of: a) a storage unit associated with an over-the-road vehicle, the storage unit having an internal wall surface bounding a storage space and including spaced and facing first and second wall surfaces and a floor surface; and b) a cargo support system. The cargo support system has first and second vertically extending tracks operatively mounted one each to the first and second wall surfaces and at least a first elongate beam having spaced first and second ends attached respectively to the first and second tracks in an operative position spaced above the floor surface. At least one of the tracks is maintained operatively mounted to the first wall surface through the use of an adhesive.
In one form, the one track has a vertical extent and is adhesively bonded to the first wall surface over the majority of the vertical extent of the one track.
In one form, the storage unit has a framework and a plurality of panels on the framework defines the internal wall surface. The one track is secured by at least one fastener extending into the framework at at least one of a top and bottom location on the one track.
In one form, the framework has top and bottom rails and at least one of the fasteners extends into the one track and each of the top and bottom rails.
In one form, the one track is adhesively bonded over substantially the entire vertical extent of the one track.
In one form, the cargo support system unit has a first plate that resides between the first wall and the one track.
In one form, the first plate is adhesively bonded to the first wall surface and the one track is adhesively bonded to the first plate.
In one form, the internal wall surface further has a ceiling surface and the one track and first plate are coextensive over substantially the entire distance between the floor and ceiling surfaces.
In one form, the first plate is adhesively bonded to the first wall surface and the one track is adhesively bonded to the first plate over substantially the entire distance between the floor and ceiling surfaces.
In one form, the framework has top and bottom rails and fasteners extend into the first plate, first wall surface and framework at each of the top and bottom rails.
In one form, there are no fasteners extending into the one track and first wall surface over a majority of the distance between the top and bottom rails.
In one form, the storage unit has a first plate that resides between the first wall surface and the one track over substantially a full vertical extent of the one track and there are no fasteners extending into the first plate and first wall surface over a majority of the distance between the top and bottom plates.
In one form, the first wall surface is defined by a first panel having an inner and an outer layer with insulation therebetween.
In one form, the first panel has a vertically extending reinforcing component and the first track is operatively mounted in overlying relationship with the reinforcing component.
In one form, the at least one fastener is a rivet.
In one form, the fasteners are rivets extending through the one track and first plate and into each of the top and bottom rails.
In one form, the storage unit has a refrigeration source for cooling the storage space.
In one form, the storage unit is a trailer on a semi-trailer unit.
In one form, the storage unit is fixedly attached to a towing unit.
In one form, the invention is directed to the combination of: a) a storage unit associated with an over-the-road vehicle, the storage unit having an internal wall surface bounding a storage space; and b) a cargo support system including a first track operatively mounted to the internal wall surface at a first location and configured to connect to a part of a cargo support component to operatively support the cargo support component. The storage unit is defined by inner and outer layers at the first location between which insulation is located. The internal wall surface is defined by the inner layer at the first location. The first track is maintained operatively mounted to the internal wall surface through the use of an adhesive.
In one form, the cargo support system includes a first plate that resides between the first track and the internal wall surface at the first location.
In one form, the first plate is adhesively bonded to the internal wall surface and the first track is adhesively bonded to the first plate.
As shown schematically in
The generic showing of components in
As one example, the over-the-road vehicle 14 may be in the nature of a semi-trailer, as shown in
The storage unit/trailer 12 is supported upon a wheeled carriage 20. A storage space at 22 is bounded by the internal wall surface 18. The wall surface 18 consists of a floor surface 24, a ceiling surface 26, first and second facing side wall surfaces 28, 30, and a front wall surface 32.
An access opening at 34 is selectively exposed and blocked by a pair of hinged doors 36.
Basic components of the cargo support system 10 are first and second vertically extending logistic tracks 38, 40, respectively operatively mounted to the side wall surfaces 28, 30, and a first elongate beam 42 with spaced ends 44, 46 attached respectively to the tracks 38, 40.
The beam 42 and tracks 38, 40 can be made with a conventional construction. The owner herein currently offers its Lift-A-Deck™ system, with a form thereof described in U.S. Pat. No. 6,074,143, entitled “Adjustable Decking System For Supporting Freight”. The disclosure therein is incorporated herein by reference.
The structural details of the beam 42 and tracks 38, 40 are not critical to the present invention. It suffices to say that the tracks 38, 40 have vertically spaced slots 48, shown for the exemplary track 38, to releasably engage a connector 50 on the beam end 44. A user can place the connector 50 on the beam end 44 in the slot 48 at the desired vertical height. The same connection is present between the opposite beam end 46 and the track 40.
Any number of pairs of the tracks 38, 40 can be utilized at desired intervals along the fore-and-aft extent of the storage space 22.
The side wall surfaces 28, 30 are defined by panels 52 that are secured to suitable framework 54 that is conventional in nature. The framework 54 may include a top plate or rail 56 and a bottom rail 58 to which the panels 52 are connected to define the exemplary side wall surface 28. Conceivably a single panel 52 might be utilized.
Each of the panels 52 has an inner layer 60, defining the wall surface 28, and an outer layer 62. The space between the inner and outer layers 60, 62 is filled with insulation 64. The insulation 64 may be any conventional type of insulation material that is either preformed or formed in situ.
The panel 52 shown in
All of the tracks 38, 40 throughout the storage space 22 can be operatively mounted in the same fashion. Exemplary track 38 is maintained operatively mounted to the wall surface 28 through the use of an adhesive. While it is conceivable that the track 38 could be directly mounted to the wall surface 28 using adhesive, in a preferred form, a mounting plate 68 is utilized and interposed between the track 38 and wall surface 28. The mounting plate 68 has a width W that is greater than the width W1 for the track 38.
One preferred material for the mounting plate is a composite sold by Wabash National Corporation under the registered mark DuraPlate®. Other suitable materials could be readily selected by one skilled in the art, using commercially available products.
An adhesive layer 70 is interposed between a mounting surface 72 on the mounting plate 68 and the panel surface 28. The layer 70 preferably covers all or most of the areal extent of the mounting surface 72 on the mounting panel 68 that extends substantially fully between the ceiling surface 26 and floor surface 24.
Similarly, an adhesive layer 74 is used to bond a flat surface 76 on the track 38 to the mounting plate surface 78 that faces oppositely to the mounting plate surface 72. Preferably, the adhesive layer overlies all, or substantially all, of the area of the flat track surface 76 that abuts to the plate surface 78.
Typically, the planes of the surfaces 28, 72, 76, 78 are all parallel, though this is not a requirement.
In a preferred form, the track 38 and mounting plate 68 are coextensive over the entire vertical extent of the surface 28 between the floor and ceiling surfaces 24, 26.
Adhesives with properties suitable to fixedly maintain the track 38 upon the mounting plate 68 and the mounting plate 68 in turn upon the surface 28 could be readily selected by one skilled in this art from any of a number of adhesives, well known and commercially available.
For further structural integrity, fasteners 80 extend into the mounting plate 68 and framework 54, and preferably the top and bottom rails 56, 58 thereon, to fixedly secure these components together. The fasteners 80 would typically be in the form of rivets.
Fasteners 82 optionally extend into the track 38 and the mounting plate 68, and potentially additionally into the framework 54. In the depicted embodiment, the fasteners 82 at the top of the track 38 extend into the top rail 56. At the bottom of the track 38, the fasteners 82 extend into the bottom rail 58. The fasteners 82 may likewise be in the form of rivets.
In
In
With the above-described arrangement, the track 38 can be operatively mounted potentially without the use of any fasteners extending through the panels 52. In a more preferred form, fasteners 80 are provided in at least the mounting plate 68 at the top and bottom thereof to engage the top and bottom rails 56, 58 respectively. The fasteners 80, 82 potentially take strain off of the adhesive that provides the primary securement for the track 38.
It is also conceivable that the adhesive would not be applied over the full vertical or horizontal extent of the surfaces 72, 76. It is preferred that at least a majority of the vertical extent of these surfaces be bonded with an adhesive. The nature of the adhesive and its properties may dictate required coverage area.
With the preferred construction shown in
The insulated design is used to maintain a controlled environment within the storage space 22. A conventional air conditioning unit 86 may be employed for this purpose, either as a refrigeration source for cooling the storage space, or a heating source for raising the temperature of the storage space 22.
The cargo support system 10 can be incorporated as a new equipment OEM installation or as an after market up-fit or retrofit installation.
In
The component 90 is fixedly secured to the wall surface 28 through suitable means. In one exemplary form, fasteners 92, which may be rivets or the like, are utilized to secure the component 90 to the panel 52 and/or the associated framework 54.
The component 90 rigidifies the panels 52 and provides a rigid support location for the mounting plate 68 and track 38 at a mid-height location. In one form, the component 90 has a height H on the order of six inches and a thickness T on the order of one-quarter inch. The component may be made from aluminum or other suitable material with good strength characteristics. Aluminum is selected because of its relatively light weight.
As seen in
Fasteners 80, as previously described, can be used to connect the mounting plate 68 to the component 90 and one or both of the panel 52 and framework 54. Fasteners 82 can be used in like fashion to extend additionally through the track 38.
The mounting plate 68 is connected to the side wall as previously discussed, utilizing adhesive and fasteners 80, 82, with the track 38 secured to the panel 68 utilizing adhesive and optionally fasteners 82.
The use of the component 90 is desirable from the standpoint that it reinforces the panels 52, the track 38, and the connection therebetween. The component 90 is also desirable, particularly with a retrofitting operation, wherein the track 38 is connected to side walls that are not reasonably flat over the footprint of the mounting plate 68 thereon.
While the adhesive layer 70 is shown between the mounting plate 68 and surface 28 of the panel 52, if the component 90 is utilized, the adhesive layer 70 can be eliminated. It is still preferred that the track 38 be adhesively bonded to the mounting plate 68.
To avoid any compromising of the insulating characteristics of the side walls, the fasteners 80, 82 that extend into the component 90 may be sized and configured so as not to fully penetrate the panels 52. However, this is not required.
In
The precise configuration of the tracks 38, 40 and the structure through which they cooperate with the beams 42 to support the beams 42 at selected different heights are not critical to the present invention. The track construction utilized by the owner herein in its Lift-A-Deck™ system is shown at 38′ in
In
An associated cargo support system 10″ has a first track 38″ operatively mounted to the internal wall surface 18″ at a first location, the track 38″ is configured to connect to a part of a cargo support component 100 to operatively support the cargo support component 100.
The schematic representation is intended to encompass a range of track configurations and cargo support component configurations to include virtually any configuration of component that is required to be fixed to the wall surface 18″ and support the weight of the part of the component 100, and any additional weight from supported cargo, whether it fully spans between spaced surfaces or is cantilever mounted.
The remaining components described in the embodiments in
The foregoing disclosure of specific embodiments is intended to be illustrative of the broad concepts comprehended by the invention.
Claims
1. In combination:
- a) a storage unit associated with an over-the-road vehicle,
- the storage unit having an internal wall surface bounding a storage space and including spaced and facing first and second wall surfaces and a floor surface; and
- b) a cargo support system comprising:
- first and second vertically extending tracks operatively mounted one each to the first and second wall surfaces; and
- at least a first elongate beam having spaced first and second ends attached respectively to the first and second tracks in an operative position spaced above the floor surface,
- wherein at least one of the tracks is maintained operatively mounted to the first wall surface through the use of an adhesive.
2. The combination according to claim 1 wherein the one track has a vertical extent and is adhesively bonded to the first wall surface over the majority of the vertical extent of the one track.
3. The combination according to claim 1 wherein the storage unit comprises a framework and a plurality of panels on the framework defining the internal wall surface, and the one track is secured by at least one fastener extending into the framework at at least one of a top and bottom location on the one track.
4. The combination according to claim 3 wherein the framework comprises top and bottom rails and at least one of the fasteners extends into the one track and each of the top and bottom rails.
5. The combination according to claim 2 wherein the one track is adhesively bonded over substantially the entire vertical extent of the one track.
6. The combination according to claim 1 wherein the cargo support system unit comprises a first plate that resides between the first wall and the one track.
7. The combination according to claim 6 wherein the first plate is adhesively bonded to the first wall surface and the one track is adhesively bonded to the first plate.
8. The combination according to claim 7 wherein the internal wall surface further comprises a ceiling surface and the one track and first plate are coextensive over substantially an entire distance between the floor and ceiling surfaces.
9. The combination according to claim 8 wherein the first plate is adhesively bonded to the first wall surface and the one track is adhesively bonded to the first plate over substantially the entire distance between the floor and ceiling surfaces.
10. The combination according to claim 9 wherein the framework comprises top and bottom rails and fasteners extend into the first plate, first wall surface and framework at each of the top and bottom rails.
11. The combination according to claim 4 wherein there are no fasteners extending into the one track and first wall surface over a majority of a distance between the top and bottom rails.
12. The combination according to claim 4 wherein the storage unit comprises a first plate that resides between the first wall surface and the one track over substantially a full vertical extent of the one track and there are no fasteners extending into the first plate and first wall surface over a majority of a distance between the top and bottom plates.
13. The combination according to claim 2 wherein the first wall surface is defined by a first panel comprising an inner and an outer layer with insulation therebetween.
14. The combination according to claim 13 wherein the first panel comprises a vertically extending reinforcing component and the first track is operatively mounted in overlying relationship with the reinforcing component.
15. The combination according to claim 3 wherein the at least one fastener comprises a rivet.
16. The combination according to claim 10 wherein the fasteners comprise rivets extending through the one track and first plate and into each of the top and bottom rails.
17. The combination according to claim 11 wherein the storage unit comprises a refrigeration source for cooling the storage space.
18. The combination according to claim 1 wherein the storage unit is a trailer on a semi-trailer unit.
19. The combination according to claim 1 wherein the storage unit is fixedly attached to a towing unit.
20. In combination:
- a) a storage unit associated with an over-the-road vehicle,
- the storage unit having an internal wall surface bounding a storage space; and
- b) a cargo support system comprising:
- a first track operatively mounted to the internal wall surface at a first location and configured to connect to a part of a cargo support component to operatively support the cargo support component,
- the storage unit defined by inner and outer layers at the first location between which insulation is located,
- the internal wall surface defined by the inner layer at the first location,
- wherein the first track is maintained operatively mounted to the internal wall surface through the use of an adhesive.
21. The combination according to claim 1 wherein the cargo support system comprises a first plate that resides between the first track and the internal wall surface at the first location.
22. The combination according to claim 21 wherein the first plate is adhesively bonded to the internal wall surface and the first track is adhesively bonded to the first plate.
Type: Application
Filed: Feb 20, 2013
Publication Date: Aug 29, 2013
Applicant: ANCRA INTERNATIONAL LLC (Hawthorne, CA)
Inventor: ANCRA INTERNATIONAL LLC
Application Number: 13/771,264
International Classification: B60P 7/15 (20060101);