This disclosure relates generally to enclosed cargo transporters, such as trailers, trucks, and containers and, more particularly, to suspended bulkheads for enclosed cargo transporters.
Bulkheads are movable partitions used inside the cargo storage area of enclosed cargo transporters, such as refrigerated trucks, enclosed trailers, vans, and the like. Some bulkheads are designed to span first and second dimensions (i.e., a cross-sectional plane) of the cargo storage area, so they can divide the storage area into separate compartments along a third dimension of the storage area.
Bulkheads can be thermally insulative, such that adjacent compartments within a cargo transporter can be maintained within different temperature ranges according to the requirements of the cargo. For example, an insulated bulkhead may separate one or more freezer sections, refrigerated sections, ambient temperature sections, and/or various combinations thereof. Some cargo transporters utilize environmental control (e.g., heating, refrigeration, etc.) systems which can include one or more remote heat exchanger units positioned within individual compartments defined/separated by bulkheads to maintain the desired environment (e.g., temperature, humidity, etc.) there within. Providing a cargo transporter with multiple compartments capable of maintaining different environmental conditions, temperature ranges for example, is particularly useful in the food delivery industry. Frozen goods (e.g., ice cream and pizza) can be stored in the freezer section, refrigerated goods (e.g., milk and fresh vegetables) can be kept in the refrigerated section, and dry goods (e.g., cereal and paper towels) can be placed in the ambient temperature section.
To create compartments of various and/or adjustable sizes thereby accommodating particular load proportions (e.g., frozen vs. refrigerated vs. ambient), bulkheads are generally moved manually (e.g., by a dock worker or driver) to different locations within the cargo storage area. Straps on the bulkhead, connectable to tracks or other anchor points on the interior of the cargo storage area, can be used to hold bulkheads in place during transport.
Example bulkheads for cargo transporters (e.g., refrigerated trailers, trucks, reefers, and/or containers) include movable panels suspended from an overhead track system. Example bulkheads disclosed herein divide a storage area of a cargo transporter into separate or isolated storage compartments. Example bulkheads disclosed herein employ example bulkhead panels that can thermally insulated and/or partition separate storage compartments that can be maintained at different temperatures (e.g., a freezer section, a refrigerated section, and an ambient air section). Example overhead track system disclosed herein enable example bulkhead panels disclosed herein to be moved in multiple directions, such as a longitudinal direction along a length of a transporter (e.g., front to back), a lateral direction across a width of a transporter (e.g., side to side), and/or rotated about a vertical axis. Moving the example panels disclosed herein in a longitudinal direction can adjust a size (e.g., an area or square footage) of a storage compartment defined by an example bulkhead. Moving the example panels disclosed herein laterally and/or swiveled about a vertical axis can provide an access opening during loading and/or unloading cargo (e.g., that may otherwise be obstructed by conventional bulkheads). Example bulkhead panels disclosed herein have features including, but not limited to, a replaceable lower section, breakaway retention straps, magnetic seals, conformable or flexible panels, and/or various components and/or track systems.
To facilitate maneuverability of example bulkheads disclosed herein, example bulkhead systems disclosed herein employ a plurality of tracks. For example, example track systems disclosed here can have one or more first tracks and one or more second tracks. For example, example track systems disclosed herein employ one or more first tracks (e.g., lateral tracks) that extend side-to-side across a width (e.g., a full width, a full lateral width, etc.) of a trailer. The example first tracks disclosed herein can be connected together and/or can be substantially parallel relative to each other. For example, the first tracks can include two tracks positioned side-by-side to provide a dual track system. An example dual track system disclosed herein enables a first panel of a bulkhead to be hung from one of the first tracks and a second panel to be hung from a second one of the first tracks, thereby enabling each panel to be hung from a dedicated track and enabling each panel to slid side-to-side in a by-passing fashion. In some examples, a single first track can be used to support a plurality of example panels disclosed herein. For example, a single first track can be used to support two or more panels.
To support the first tracks, example bulkhead systems disclosed herein employ the second tracks. Example first track systems disclosed herein can be positioned along a length of a trailer extending from each corner defined by an interface between the walls and the ceiling. For example, example second tracks (e.g., longitudinal tracks) disclosed herein can be positioned alongside walls of the trailer in a longitudinal direction between a front of the trailer and a rear of the trailer (e.g., at a corner interface between the side walls and a ceiling of a transporter). Example second tracks disclosed herein can be configured to support the one or more first tracks. Example track systems disclosed herein can employ one or more carriages that slidably couple the one or more second tracks and the first tracks. Example carriages disclosed herein can allow one or more second tracks to move in a longitudinal direction within a storage area of a trailer. Thus, example track systems disclosed herein can provide a two-axis track system that enables panels to move side-to-side in a lateral direction and front-to-back in a longitudinal direction within a storage area of a trailer.
Example bulkheads disclosed herein can employ a swivel or pivot joint (e.g., a swivel trolly). Example swivel or pivot joints disclosed herein can couple each panel to one or more example first tracks. Example swivel joints disclosed herein can allow an example panel of a bulkhead to be pivoted or rotated (e.g., 360 degrees) around a vertical axis (e.g., of the swivel joint). Example swivel joints disclosed herein can allow each bulkhead panel to be positioned flat against a side of a trailer to facilitate a loading/unloading operation. In this manner, each panel can either be pushed to opposite sides of a trailer, or both panels can be pushed to a same side of the trailer. This versatility can be beneficial when example bulkheads disclosed herein are stored during a non-temperature controlled loading operation, as the example panels disclosed herein can be stored along walls of the trailer at any point in the trailer, such as a front wall (e.g., a wall opposite a trailer opening). Additionally, example swivel joints disclosed herein enable use of a single first track (e.g., a side-to-side track) or a dual side-to-side track configuration. Example swivel joints disclosed herein provide a center mounting point to enable the panels to swivel to allow a first panel to pass adjacent a second panel in a lateral direction (e.g., a side-to-side direction). Thus, example track systems and swivel joints disclosed herein significantly improve maneuverability of the example panels disclosed herein.
Example bulkheads disclosed herein employ one or more fasteners to store a bulkhead panel when the bulkhead is not in use. For example, one or more fasteners disclosed herein can retain or secure unused panels to a wall of a trailer during loading and/or unloading operating. In some examples, one or more fasteners retain or secure unused panels to prevent the unused panels from moving around when a vehicle is in transit. In some examples, the one or more fasteners can be straps that attach to an anchor (e.g., a track or wall). In some examples, the fasteners including one or more magnets carried by a bulkhead panel that couple to a structure (e.g., a metal track) inside a trailer of a vehicle.
Example bulkheads disclosed herein enables use of less floor space during an opening and/or closing operation of a bulkhead compared to known bulkhead systems (e.g., that employ a hinge). As a result of facilitating the opening/closing operation of the bulkhead, a greater amount of cargo product can be placed in a trailer given that less open floor space is needed to open the bulkhead. Additionally, example bulkheads disclosed herein can be opened can be opened without having to move product out of the way to either hinge a panel to a side or to hinge a panel to a ceiling.
Further, example bulkheads disclosed herein can provide more flexibility for positioning the example panels during a loading/unloading operation. For example, if one or more pallets are spaced apart enough from side to side and front to back of the trailer, the panels can be positioned into place anywhere in the trailer even after the trailer is fully loaded. This could be beneficial when unloading a trailer, as the panels can be moved into a new position prior to removing some product from the trailer. In some examples, this can reduce an amount of time that a “frozen” section of a trailer is left open to warmer air.
Furthermore, example bulkhead panels disclosed herein can include different flexibility characteristics. Specifically, example swivel joint and the example track systems disclosed herein can support a weight of the bulkhead panels, which enable use of a flexible core suspended from a rigid or semi-rigid structure (e.g., a beam at a top) of the panel. The flexibility characteristic of the example panels disclosed herein can withstand more impact than a rigid panel. For example, flexible panels disclosed herein can bend or flex during an impact (e.g., from a forktruck) and do not transfer damaging forces to the tracks system. Thus, impacting the flexible panel can prevent or reduce damage to the first tracks and/or second tracks. Such configuration reduces repair and/or replacement costs.
Some example bulkhead panels disclosed herein can be configured to have portions that have different compressibility and/or flexibility characteristics. For example, a first portion of an example bulkhead panel disclosed herein can include a first foam core (e.g., an upper core) having a first compressibility characteristic and a second foam core (e.g., a lower core) having a second compressibility characteristic different (e.g., greater than) than the first foam characteristic. Thus, example bulkhead panels disclosed herein can be lighter in weight due to the different flexible characteristics, which facilitates maneuverability of the panels in the storage area of the trailer. For example, example bulkhead panels disclosed herein can be bent or folded to maneuver the panels around or over product in a storage area that is loaded in a trailer.
Also, the flexibility characteristics of example bulkhead panels disclosed herein can reduce an amount of friction between a bottom surface of a panel and a floor of the storage area when the bottom surface is in engagement with (e.g., pressed against) the floor, which can facilitate maneuverability of the panels and/or passing of cooling fluid (e.g., air) during a refrigeration process. Moreover, flexible panels disclosed herein facilitate installation of the track systems and/or the panels themselves by providing additional tolerance during sizing of the flexible panels relative to a height of the vehicle or cargo transporter. For example, the flexibility characteristics of a lower portion of example panels disclosed herein allow a panel height to be taller than a height of a storage area and enable the panel to fit given that the lower portion can flex, compress, or bend when positioned within an example storage area, which can simplify manufacturing. For example, flexible panels prevent wedging between a floor and a ceiling if the flexible panels are sized slightly large (e.g., a couple of inches greater than a height of a cargo storage area) as the flexible panel can bend or flex as needed.
Stiffeners or stays can add resilient structure to the flexible panels such that the panel is generally maintained in a flat, planar shape in its normal, installed configuration, can flex to a curved shape in order to avoid damage and allow movement of the panel when sufficient external force is applied, yet is urged back to the flat, planar shape as the external force is removed.
In some examples, flexible panels disclosed herein can include a horizontally-oriented longitudinal stay or stiffener extending along an upper end or edge of the flexible panel. In this manner, the stiffener prevents or restricts lateral edges of the flexible panel from sagging relative to a center of the flexible panel. In this manner, the stiffener disclosed herein maintains an upper edge of the flexible panel in a substantially horizontal orientation (e.g., substantially straight) when the flexible panel is attached to a center pivot. In some examples, the stiffener is a stay, rod (e.g., plastic, fiberglass, a metal, etc.) or other stiffener that is positioned within a pocket or loop adjacent an upper edge of the flexible panel. Example flexible panels disclosed herein can include multiple layers. In some examples, flexible panels disclosed herein can include a polyester batting (e.g., ¾ inch batting) encased in a vinyl coated fabric layer. In some examples, a fiberglass rod (e.g., a horizontal rod) can be inserted in a pocket across the upper edge of the flexible panel to support (e.g., resist sagging) of the outer edges of the flexible panel.
Example panel assemblies disclosed herein define a partition that includes a first panel and a second panel. In some orientations or configurations, the first panel includes a lateral edge that engages or overlaps a lateral edge of the second panel. To couple the first panel and the second panel, some example panels disclosed herein include magnetic or other releaseable fasteners (e.g., hook and loop, snaps, etc.). For example, a first magnetic strip can be positioned along the lateral edge of the first panel and a second magnetic strip can be positioned along the lateral edge of the second panel. The magnetic strips can be employed to removably or temporarily attach the adjacent edges of the first panel and the second panel.
In some examples, flexible panels disclosed herein can include a vertically-oriented longitudinal stay or stiffener extending along a lateral edge of the flexible panel. In this manner, the stiffener prevents or restricts upper and lower edges of the flexible panel from moving significantly out of alignment with each other (front to back). In this manner, the stiffener disclosed herein maintains the lateral edge of the flexible panel in a substantially vertical orientation (e.g., substantially straight) when the flexible panel is attached to a center pivot. In some examples, the stiffener is a stay, rod (e.g., plastic, fiberglass, metal, etc.) or other stiffener that is positioned within a pocket or loops adjacent a lateral edge of the flexible panel. In some examples, the stiffener improves the function of releasable fasteners positioned at overlapping lateral edges of adjacent panels.
Some example track systems disclosed herein include a brake system or apparatus for maintaining a position of a panel assembly in the cargo storage area. For example, to prevent or restrict movement of the panel assembly along the track system when a vehicle is transporting goods, the brake system prevents or restricts movement or shifting of the panels along the track system. A user can manually release the brake (e.g., via a pull cord) to move the panels along the track system or can activate the brake to prevent movement of the panels along the track system.
In some examples, one or more example bulkheads 46 (e.g., bulkhead 46a of
To adjust a size (e.g., a total area or square footage) of the compartments and/or to provide pass-through access between adjacent compartments, the overhead track system 50 allows the panels 48 to be (e.g., manually) moved within the cargo storage area 16 in the longitudinal direction 30, the lateral direction 34, and/or rotationally about the axis 52. To refrigerate and/or freeze one or more of the separate compartments 16a-c, the trailer 12 includes a transport refrigeration unit 54.
For example, the transport refrigeration unit 54 includes an exterior unit 54a and multiple interior units 54b. The units 54a and 54b are interconnected by tubing to create a closed loop refrigerant circuit that includes a refrigerant compressor and condenser in the exterior unit 54a, an evaporator in each of the interior units 54b, and fluid expansion devices immediately upstream of each of the evaporators.
To cool the cargo storage area 16, evaporator fans of the interior units 54b circulate chilled air to draw heat from within the cargo storage area 16, while a condenser fan of the exterior unit 54a releases the heat outside. In some examples, the exterior unit 54a further includes an integral evaporator that is used as an alternative and/or in addition to the interior units 54b. In some examples, a refrigeration unit (e.g., the transport refrigeration unit 54, the exterior unit 54a, the interior unit 54b) and/or one or more evaporators can be configured to provide heat to the cargo storage area 16 and/or the different compartments 16a-16c to maintain a desired temperature within each of the compartments 16a-c if both heating and cooling are needed.
As noted above, one or more example bulkheads 46 can be used for dividing the cargo storage area 16 into multiple compartments 16a-c to be maintained at different temperatures.
In the examples shown in
In addition, or as an alternative to using pallets 66, the floor 20 can be corrugated or otherwise grooved to allow and/or promote cool air circulation. The grooves of the floor 20 can also help channel possible condensate and other liquids from an upper surface of the floor.
Some examples of straps 72 are tightened and cinched by various hardware such as ratchet mechanisms, cam buckles 74 (e.g.,
The lateral tracks 84a and 84b extend in the lateral direction 34. The lateral tracks 84a and 84b of the illustrated example are carried or supported by the right carriage 86c and the left carriage 86d. The lateral tracks 84a and 84b can travel along the respective right longitudinal track 84c and the left longitudinal track 84d. The rear lateral track 84a and the front lateral track 84b are substantially parallel and displaced (e.g., out of collinear alignment or spaced apart) relative with each other. For example, the lateral track 84a can be spaced apart from the front lateral track 84b in the longitudinal direction 30. The first carriage 86a can move along the lateral track 84a (e.g., a rear lateral track) and/or can carry or support a weight of the first panel 48a. For example, the first carriage 86a can support a weight of the first panel 48a while the lateral track 84a (e.g., the rear lateral track) guides a lateral movement of the first panel 48a. Likewise, the second carriage 86b travels along the front lateral track 84b and/or can carry or support a weight of the second panel 48b. For example, the second carriage 86b can support the weight of the second panel 48b while the front lateral track 84b guides a lateral movement of the second panel 48b. The carriages 86 can have any number of rollers 88 to achieve a desired load carrying capacity and/or rolling capability. The rollers 88 can be spaced apart any suitable distance to maintain a desired orientation (e.g., perpendicular) relationship between the lateral and longitudinal tracks and reduce (e.g., minimize) binding that can otherwise occur due to non-perpendicularity.
The first and second carriages 86a and 86b allow the relative positions of the first and second panels 48a and 48b to be adjusted laterally and/or independently within cargo storage area 16, as indicated for example by arrows 90 of
The right and left carriages 86c and 86d of the illustrated example allow the position of the first and second panels 48a and 48b to be adjusted in the longitudinal direction 30 within cargo storage area 16, as indicated for example by arrows 95 of
In some examples, the first and second carriages 86a and 86b include a rotatable or twistable swivel joint 94 that enables panels 48 to be (e.g., manually) rotated over a swivel range of motion 96 of between at least 5 degrees and 90 degrees (e.g., 45 degrees) about the axis 52 (see
Referring to
The cover sheet 98 provides moisture resistance, abrasion resistance, an ability to wash down, and a clean appearance. Some example materials of the cover sheet 98 can include vinyl sheeting, vinyl fabric, polyester sheeting, polyester fabric, and/or any other suitable material(s). In some examples, the cover sheet 98 can weigh about 18 ounces per square-yard. In some examples, the cover sheet 98 can be adhesively and/or thermally bonded to the core 100.
Since at least some of the weight of the panel 48 can be carried by the overhead track system 50, the panel 48 does not necessarily have to be so stiff to support itself (e.g., in an upright orientation). Consequently, the panel 48 can be made of materials that are more flexible and/or more lightweight than conventional bulkhead panels. This can make panels 48 less expensive, more durable, and easier to move in the cargo storage area 16. For example, the panel 48 of the illustrated example includes a core 100 (e.g., a foam core) having a first or lower core section 100a (e.g., a pliable section) and a second or upper core section 100b (e.g., a relatively stiff core section) different than the lower core section 100a.
In some examples, for instance, one or more sections of the core 100 can be made of a lightweight pliable material. The term, “pliable” as it refers to a panel core means that the panel core can be folded back over onto itself and subsequently unfolded without appreciable damage to the panel core. In the example shown in
In examples where the panel 48 includes the lower pliable core section 100a, the panel 48 includes the relatively stiff upper core section 100b to prevent upper lateral edges of the panel 48 from drooping as a result of the carriage 86 hanging the panel 48 (e.g., from a single central point). The panel 48 of the illustrated example includes the relatively stiff upper core section 100b for increased flexural beam rigidity. The upper core section 100b is relatively or sufficiently stiff to provide a firm structure for anchoring a screw 104. The screw 104 receives or couples to a hanger 106 of carriage 86. Some examples of hanger 106 can include a J-bolt, an eyebolt, a bar, a shaft, etc. Some example materials for the upper core section 100b include expanded polystyrene foam, closed-cell polyethylene, extruded polystyrene foam and/or any other suitable material(s).
Some examples of the panel 48 include one or more handles 108 to facilitate movement of the panels 48 in the cargo storage area 16. The panel 48 of the illustrated example include a header 110 for adding strength and rigidity to the upper edge of the panel 48. The panel 48 of the illustrated example includes straps 72, clips 70 and buckles 74 to secure the panel 48 in position and anchors 112 to connect the straps 72 to the panel 48. In some examples, the panel 48 the header 110, the straps 72, the clips 70, the buckles 74 and/or the anchors 112 can be omitted (see, for example,
In some examples, header 110 further helps prevent the drooping problem mentioned earlier. In some examples, header 110 is made of a metal (e.g., aluminum), as metal typically is much less susceptible to creep (yielding or drooping after an extended period under load). In some examples, header 110 is made of a metal (e.g., aluminum), plastic, a combination of aluminum and plastic, and/or any other suitable material(s). In some examples, multiple nested headers 110 are used. Some examples include a plastic header over an aluminum one, an aluminum header over a plastic one, and one header thermally welded, screwed, glued, or otherwise attached to core 100.
Some example headers can include other styles and/or variations. For example, some examples headers can include a fiberglass rod and metal, or plastic pipe embedded into a foam panel or captured (e.g., supported) by the fabric covering. In examples where the header is captured by the fabric covering, the cover can support an entire weight of the panel from the header, rather than relying on the core of the panel 48 to carry any weight. The different example headers disclosed herein can be employed when the panels are formed with polyester batting or similar insulating material in place of a foam core.
Some examples of the panel 48 include an upper seal member 114 that may serve multiple functions. Some example functions include sealing between the panel's upper edge 115 and the lateral tracks 84a and 84b, sealing between the trailer's ceiling 18 and the two lateral tracks 84a and 84b, and insulating or at least creating a thermal break between the two lateral tracks 84a and 84b.
Some sealing surfaces of the upper seal member 114 are sliding surfaces (e.g., sliding against ceiling 18 or along the top edge of panel 48) while other sealing surfaces are static (e.g., between the two lateral tracks 84a and 84b). To address these different sealing needs, some examples of upper seal member 114 are made of multiple materials by way of various processes known as co-extruding, over-molding, co-molding, double injection molding, and/or any other suitable manufacturing process(es). Additionally, some example materials of upper seal member 114 can include closed cell polyurethane foam, neoprene, urethane, and/or various combinations thereof, and/or any other suitable material(s). Some example materials of header 110 can include high density polyethylene, rigid vinyl, etc.
The panel 48 of the illustrated example includes a side seal 116 (
In some example sequences of operation, a worker can move the panels 48 aside (e.g., toward, or adjacent the side walls 36) so the panels 48 do not interfere with loading the trailer 12 with cargo 102. For example, the panels 48a and 48b can be rotated so a front face or a longitudinal width of the panels 48a and/or 48b are generally parallel to the trailer's side walls 36. For example, the panels 48a and 48b can be moved to one side of the trailer 12, as shown in
After cargo 102 is loaded onto the trailer 12 (e.g., as shown in
At a desired delivery location, the cargo 102 can be removed from the cargo storage area 16 through one of the side doors 44. Alternatively, some or all of the cargo 102 can be accessed by releasing the straps 72 and moving one or more of the bulkheads 46 to an open position. The bulkheads 46 can be moved to respective open positions by moving the panel 48a and/or the panel 48b laterally (e.g., as shown in
Some additional features or options for the bulkheads 46 are shown in
Referring to
In some examples, the panels 48 can be configured with a one-piece core encased with the cover sheet 98. To provide wear resistance to the panels 48, the panels 48 can include a friction-resistant material (e.g., Durathon®) to cover at least a wear area of the panels 48. For example, a lower portion of the panels 48 can include a layer (e.g., a strip having between 2 inches and 10 inches in height) of the friction-resistant fabric. In this manner, the friction-resistant fabric hangs on a front and/or back surface of the panels 48. For example, the friction-resistant fabric can couple to the panel 48 (e.g., an outer surface of the cover sheet 98) can removably couple to a surface (e.g., an outer surface) of the sheet 98 via a fastener (e.g., a zipper, a series of snaps, touch-and-hold fastener (e.g., a hook-and-loop fastener, VELCRO, interlocking matrix of mushroom heads, etc.). For example, the fastener can be positioned on an upper edge of the friction-resistant fabric. The friction-resistant fabric can be removed from the sheet 98 (e.g., a cover) when worn and replaced with a new friction-resistant fabric.
The overhead track system 50b includes a right longitudinal track 84c and a left longitudinal track 84d. Instead of the rear lateral track 84a and the front lateral track 84b, however, the overhead track system 50b includes a single common lateral track 84f that carries panels 48a and 48b.
The common lateral track 84f is connected to the right carriage 86c and the left carriage 86d. The common lateral track 84f moves along the respective right longitudinal track 84c and the left longitudinal track 84d. The first carriage 86a of the first panel 48a and the second carriage 86b of the second panel 48b are mounted for movement in a substantially linear path along the common lateral track 84f.
A swivel joint 94 of each of the first carriage 86a and the second carriage 86b enables the panels 48 to be (e.g., manually) rotated (e.g., at least 45 degrees) about an axis 52 (e.g., a vertical axis as indicated by arrows 140 of
When the bulkhead 46b is in a generally closed configuration, as shown in
When loading or unloading of cargo 102, the panels 48 can be rotated and moved laterally off to the side in an arrangement similar to that shown in
Referring to
Breakaway loop 164 includes two vertically elongate mating strips 164a and 164b of a touch-and-hold fastener. A first strip 164a is coupled to panel 48. For example, the first strip 164a can be sewn, thermally bonded, adhesively bonded, and/or otherwise permanently attached to the panel 48. An upper end of the mating strip 164b can be permanently attached to the first strip 164a. Strap 72 can be sandwiched between strips 164a and 164b at a height that is adjustable (as indicated by arrow 165) to match an elevation of logistic track 68. When tightening or loosening strap 72, the strap 72 can readily slide lengthwise between strips 164a and 164b because strap 72 has neither a hook nor a loop structure. In other words, the strap 72 can slide within the breakaway loop 164 between a first end (e.g., an upper end) of the breakaway loop 164 and a second end (e.g., a lower end) of the breakaway loop 164.
To release the panel 48, buckle 74 is opened and clip 70 is unlatched from logistic track 68 in a conventional manner. As the tension in strap 72 is released, anchor hook 162 moves away (e.g., naturally falls via gravity) away from anchor plate 160. The strap 72 can hang or remain suspended from breakaway loop 164, as shown for example in
In some examples, the breakaway feature of strap 72 can be accomplished using various restorable disconnectable fasteners. Examples of such fasteners include snaps, VELCRO, magnets, resiliently releasable hooks, and connectors and/or any other fastener(s).
In the example shown in
In some examples, anchors 112 are positioned closer to the side seal 116 than to the inner edge 124. More specifically, distance 170 of
In the example shown in
In some examples, as shown for example in
The panel 48c of the illustrated example can be used to implement the bulkhead 46 of
To secure the panel 48c to the side wall 36 of the trailer 12, the panel 48c of the illustrated example includes a restraint 300. Specifically, the restraint 300 of the illustrated example interfaces with the logistic tracks 68 (e.g., the upper logistic track 68a and/or the lower logistic track 68b) of the trailer 12 to retain or store the panel 48c within the trailer 12 when the panel 48c is not in use. For example, as shown in
The restraint 300 of the illustrated example includes a first restraint 302 and a second restraint 304. The first restraint 302 and the second restraint 304 are located on a first surface 306 (e.g., an inner surface) of the panel 48c. Additionally, the first restraint 302 and the second restraint 304 interface and/or interact with an upper logistic track 68a. For example, the first restraint 302 and the second restraint 304 of the illustrated example are aligned with the upper logistic track 68a. For example, the first restraint 302 and the second restraint 304 are spaced laterally along a common line 308 and are positioned at an elevation from a lower edge 310 of the panel 48c that is similar (e.g., identical) to an elevation of the upper logistic track 68a. However, in some examples, the panel 48c can include one restraint (e.g., the first restraint 302) or more than two restraints (e.g., three restraints, five restraints, etc.). In some examples, the panel 48c can include one or more restraints 300 that align with and/or interface with a lower logistic track 68b. In some examples, the panel 48c can include one or more restraints 300 to interface with the upper logistic track 68a and/or one or more restraints 300 to interface with the lower logistic track 68b.
The housing 408 of the illustrated protrudes from the first surface 306 of the panel 48c. The housing 408 includes a body 410 that at least partially surrounds the magnet 406. For example, the housing 408 surrounds (e.g., fully encircles) a circumference or perimeter of the magnet 406. In other words, the housing 408 of the illustrated example defines a cavity 412 to receive the magnet 406. In some examples, an outer surface 414 (e.g., a metal engaging surface) of the magnet 406 is substantially flush relative to an edge 416 (e.g., a leading edge) of the housing 408. As used herein, substantially flush means that the outer surface 414 of the magnet 406 slightly extends past the edge 416 of the housing 408 (e.g., by between approximately one millimeter and 1 inch), is even with the edge 416 (e.g., on the same vertical plane), or is slightly recessed within the cavity 412 relative to the edge 416 (e.g., by between approximately one millimeter and a quarter of an inch).
Additionally, the body 410 of the housing of the illustrated example includes a side surface 418 that provides a ramp-like shape between the magnet 406 and the first surface 306 of the panel 48c. The side surface 418 of the illustrated example is tapered between the edge 416 of the body 410 and the first surface 306. In this manner, the side surface 418 of the body 410 reduces or prevents instances of the panel 48c from catching or snagging on other structures or panels located in the trailer 12 when the panel 48c is moved inside the trailer 12.
To retain the restraint 300 to the panel 48c, the panel 48c of the illustrated example includes a fastener 420. The fastener 420 of the illustrated example is a screw that passes through an opening 422 (e.g., a central opening) of the magnet 406 and fastens (e.g., attaches) to the first surface 306 of the panel 48c. The first surface 306 of the panel 48c can include a second fastener (e.g., a nut) to receive (e.g., threadably receive) the fastener 420.
Referring to
To facilitate maneuverability of the panel 48c relative to the logistic tracks 68 and/or the cargo storage area 16, a second surface 502 (e.g., an outer surface) of the panel 48c opposite the first surface 306 includes one or more handles 504. Additionally, the swivel joint 94 (
The carriage 600 of the illustrated example is structured to mount to an example panel 606. In some examples, the panel 606 of the illustrated example can implement the example panels 48 of
Referring to
The carriage 600 of the illustrated example couples to a lateral track (e.g., the rear lateral track 84a, the front lateral track 84b, etc.) of a system (e.g., the system 50). The carriage 600 movably couples the panel 606 within a cargo container of a vehicle, a rail car, a warehouse, and/or other transport or storage system(s) (e.g., modular storage system(s)). To movably couple the carriage 600 to a lateral track, the carriage 600 of the illustrated example includes a plurality of rollers 628. For example, the rollers 628 enable the panel 606 to move or slide along a lateral track (e.g., the rear lateral track 84a, the front lateral track 84b in the lateral direction 34 of
The rollers 628 of the illustrated example are rotatably coupled to the body 622. The rollers 628 of the illustrated example include a first set 628a of rollers 628 that rotate relative to the body 622 about a first rotational axis 630 and a second set 628b of rollers 628 that rotate relative to the body 622 about a second rotational axis 632. In some examples, the carriage 600 can include only one roller 628 or only one set 628a or 628b of rollers 628. In some examples, the carriage 600 can include more than two sets of rollers 628 and/or any number of rollers 628.
The carriage assembly 700 of the illustrated example includes a first carriage 702a (e.g., a first trolley) and a second carriage 702b (e.g., a second trolley). For example, the first carriage 702a can implement the right carriage 86c and/or the second carriage 702b can implement the left carriage 86d of
Referring to
In operation, when the carriage assembly 700 of the illustrated example is coupled to a system (e.g., the system 50 of
The first brake 206a is associated with the first longitudinal track 84c and the second brake 206b is associated with the second longitudinal track 84d. Specifically, the first brake 206 includes a first retractable arm (e.g., a plunger, a rubber plunger, a pin etc.) moveable for engagement with (e.g., an outer surface of, an aperture or detent in, etc.) the right longitudinal track 84c and the second brake 206b includes a second retractable arm 208b (e.g., a plunger, a rubber plunger, a pin, etc.) moveable for engagement with (e.g., an outer surface of, an aperture or detent in, etc.) the left longitudinal track 84d.
In the brake condition 202 of
To enable desired movement of the first panel 48a and the second panel 48b along the longitudinal tracks 84c and 84d, the brake system 200 of the illustrated example is moved to the release position 204 of
The first brake 206a and/or the second brake 206b can include a motor, a step motor, a hydraulic actuator, an electric actuator, a manual actuator and/or any other actuator. In some examples, a controller (e.g., a push button controller) is provided to operate the first brake 206a and the second brake 206b between the engaged position 202 and the release position 204. In some examples, the brake system 200 is a manually operated drive system 200. For example, pull cords can be provided to move the first and second arms 208a and 208b into and out of engagement with the respective longitudinal tracks 84c, 84d. For example, the first arm 208a and the second arm 208b can be biased (e.g., via a biasing element or spring) in the brake position 202 and the pull cords can be used to pull the arms 208a and 208b against the biasing force and out of engagement with the longitudinal tracks 84c, 84d while the bulkhead 46a is being positioned longitudinally in the cargo space.
In the illustrated example of
The foregoing examples of the bulkheads 46, the overhead track systems 50 and/or other components (e.g., panels 48, 606 the joint 92, 608, the hanger 106, the carriages 86, 600, 702a, 702b, the carriage assembly 700, the tracks 84 (e.g., 84a-d, 604a, 704d, etc.), the brake system 200 disclosed herein can be employed with a cargo container of a vehicle, a rail car, a warehouse and/or any other transport or storage system (e.g., modular storage system(s)). Although each example of the bulkheads 46, the overhead track systems 50 and/or other components (e.g., the panels 48, 606, the joint 92, 608, the hanger 106, the carriages 86, 600, 702a, 702b, the carriage assembly 700, the tracks 84 (the tracks 84a-d, 704a, 704b, etc.), the brake system 200 disclosed above have certain features, it should be understood that it is not necessary for a particular feature of one example to be used exclusively with that example. Instead, any of the features described above and/or depicted in the drawings can be combined with any of the examples, in addition to or in substitution for any of the other features of those examples. One example's features are not mutually exclusive to another example's features. Instead, the scope of this disclosure encompasses any combination of any of the features.
Example methods, apparatus, systems, and articles of manufacture to implement bulkheads are disclosed herein. Further examples and combinations thereof include the following:
Example 1 includes a bulkhead including an overhead track system mountable to an enclosed cargo transporter within a cargo storage area. A first carriage is attached to the overhead track system. The first carriage is movable relative to the overhead track system in at least one of a lateral direction or a longitudinal direction while being guided by the overhead track system. A first panel is suspended by the first carriage from the overhead track system, where the weight of the first panel is substantially supported by the overhead track system via the first carriage.
Example 2 includes the bulkhead of example 1, where the first carriage is movable in the lateral direction over a lateral distance that is greater than one third of a panel width of the first panel.
Example 3 includes the bulkhead of examples 1 or 2, where the first panel has a first swivel range of motion of at least 45 degrees about a first vertical axis relative to the overhead track system.
Example 4 includes the bulkhead of any one of examples 1-3, further including a second panel suspended by a second carriage from the overhead track system, the second carriage providing the second panel with a second swivel range of motion of at least 45 degrees about a second vertical axis relative to the overhead track system, wherein the second vertical axis is laterally spaced apart from a first vertical axis of the first panel.
Example 5 includes the bulkhead of any one of examples 1-4, where the overhead track system includes a first lateral track and a second lateral track that extend in the lateral direction, the first lateral track oriented substantially parallel to the second lateral track, the first carriage being movable along and guided by the first lateral track, and the second carriage being movable along and guided by the second lateral track.
Example 6 includes the bulkhead of any one of examples 1-5, where the overhead track system includes a common lateral track defining a substantially linear path extending in the lateral direction, the first carriage and the second carriage being movable along the substantially linear path.
Example 7 includes the bulkhead of any one of examples 1-6, where the first carriage is at a spaced-apart distance from the second carriage, the spaced-apart distance being adjustable along the overhead track system to vary a distance by which the first panel overlaps the second panel in the lateral direction.
Example 8 includes the bulkhead of any one of examples 1-7, further including a seal positioned between the overhead track system and an interior surface of the cargo transporter.
Example 9 includes the bulkhead of any one of examples 1-8, further including a releasable coupling between the first panel and the second panel, the releasable coupling being vertically elongate.
Example 10 includes the bulkhead of any one of examples 1-9, where the first panel includes a pliable core section.
Example 11 includes the bulkhead of any one of examples 1-10, further including at least one longitudinal stiffener positioned along an edge of the first panel.
Example 12 includes the bulkhead of any one of examples 1-11, where the first panel includes an upper section, a replaceable lower section, and a restorably disconnectable joint connecting the replaceable lower section and the upper section, the replaceable lower section having a lower section height that is between 20% and 50% of the upper section height.
Example 13 includes the bulkhead of any one of examples 1-12, where the first carriage is movable in both the longitudinal direction and the lateral direction along the overhead track system.
Example 14 includes the bulkhead of any one of examples 1-13, where the first panel includes a draw latch strap for securing the panel to an interior lateral surface of the cargo transporter.
Example 15 includes a bulkhead including for use in a cargo storage area of an enclosed cargo transporter, the cargo storage area having a storage length extending in a longitudinal direction, a storage width extending in a lateral direction, and storage height extending in a vertical direction, the bulkhead comprising: an overhead track system mountable to the enclosed cargo transporter within the cargo storage area; a first carriage attached to the overhead track system, the first carriage being movable along the overhead track system along a lateral distance in the lateral direction, the first carriage to move along the overhead track system in the longitudinal direction; and a first panel suspended by the first carriage from the overhead track system.
Example 16 includes the bulkhead of example 15, where the first panel having a panel width, and the lateral distance of the first carriage being greater than one third of the panel width.
Example 17 includes the bulkhead of examples 15 or 16, where the first carriage is structured to enable the first panel to swivel along a first swivel range of motion of at least 45 degrees about a first vertical axis.
Example 18 includes the bulkhead of any one of examples 15-17, further including a second carriage being movable in a longitudinal direction and lateral direction along the overhead track system; and a second panel suspended from the second carriage, the second carriage providing the second panel with a second swivel range of motion of at least 45 degrees about a second vertical axis.
Example 19 includes the bulkhead of any one of examples 15-18, the overhead track system includes a first lateral track and a second lateral track that extend in the lateral direction, the first lateral track being substantially parallel to the second lateral track, the first carriage being movable along and guided by the first lateral track, and the second carriage being movable along and guided by the second lateral track.
Example 20 includes the bulkhead of any one of examples 15-19, further including a seal positioned between the overhead track system and an interior surface of the cargo transporter.
Example 21 includes the bulkhead of any one of examples 15-20, where the overhead track system includes a common lateral track defining a substantially linear path extending in the lateral direction, both the first carriage and the second carriage being movable along the substantially linear path.
Example 22 includes the bulkhead of any one of examples 15-21, where the first carriage is at a spaced-apart distance from the second carriage, the spaced-apart distance being adjustable along the overhead track system to vary an amount that the first panel overlaps the second panel in the lateral direction.
Example 23 includes the bulkhead of any one of examples 15-22, where further including a releasable coupling between the first panel and the second panel, the releasable coupling being vertically elongate.
Example 24 includes the bulkhead of any one of examples 15-23, where the first panel includes a pliable core section.
Example 25 includes the bulkhead of any one of examples 15-24, further including at least one longitudinal stiffener positioned along an edge of the first panel
Example 26 includes the bulkhead of any one of examples 15-25, where the first panel includes an upper section, a replaceable lower section, and a restorably disconnectable joint connecting the replaceable lower section and the upper section, the replaceable lower section having a lower section height that is approximately between 20% and 50% of an upper section height.
Example 27 includes the bulkhead of any one of examples 15-26, where the first panel includes a draw latch strap for securing the panel to an interior lateral surface of the cargo transporter.
Example 28 includes the bulkhead of any one of examples 15-27, further including a brake system to selectively reduce or prevent movement of the first carriage in the longitudinal direction.
Example 29 includes a bulkhead for use in a cargo storage area of an enclosed cargo transporter, the cargo storage area having a storage length extending in a longitudinal direction, a storage width extending in a lateral direction, and storage height extending in a vertical direction, the bulkhead including: an overhead track system mountable to the enclosed cargo transporter within the cargo storage area; a carriage attached to the overhead track system, the carriage being movable relative to the overhead track system in at least one of the lateral direction or the longitudinal direction; a panel suspended by the carriage from the overhead track system, the panel including an upper section and a replaceable lower section, the upper section being attached to the carriage, the upper section having an upper section height, the replaceable lower section having a lower section height that is approximately between 20% and 50% of the upper section height; and a restorably disconnectable joint connecting the replaceable lower section and the upper section
Example 30 includes the bulkhead of example 29, where the carriage provides the panel with a first swivel range of motion of at least 45 degrees about a first vertical axis.
Example 31 includes the bulkhead of examples 29 or 30, where the panel includes a pliable core section.
Example 32 includes the bulkhead of any one of examples 29-31, the carriage is movable in the lateral direction over a lateral distance that is greater than one third of a panel width of the panel.
Example 33 includes the bulkhead of any one of examples 29-32, the carriage is movable in the lateral direction and the longitudinal direction relative to the overhead track system.
Example 34 includes a bulkhead for use in a cargo storage area of an enclosed cargo transporter, the cargo storage area having a storage length extending in a longitudinal direction, a storage width extending in a lateral direction, and storage height extending in a vertical direction, the bulkhead comprising: an overhead track system mountable to the enclosed cargo transporter within the cargo storage area; a carriage attached to the overhead track system, the carriage being movable relative to the overhead track system in at least one of the lateral direction or the longitudinal direction while being guided by the overhead track system; a panel suspended by the carriage from the overhead track system; and a restraint carried by the panel, the restraint to secure the panel to a wall of the cargo storage area to restrict movement of the panel during at least one of movement of the cargo storage area or an unloading/loading operation.
Example 35 includes the bulkhead of example 34, where the restraint includes a magnet to magnetically engage a logistic track of the cargo storage area to secure the panel to the wall of the cargo storage area.
Example 36 includes the bulkhead of examples 34 or 35, where the restraint includes a housing having a cavity to at least partially receive the magnet, the housing having a side surface that tapers between a leading edge of the housing and a surface of the panel.
Although certain example methods, apparatus and articles of manufacture have been disclosed herein, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all methods, apparatus and articles of manufacture fairly falling within the scope of the claims of this patent.
This patent arises as a continuation application of International Patent Application Serial Number PCT/2021/051373, filed on Sep. 21, 2021, which claims the benefit of U.S. Provisional Patent Application No. 63/081,165 filed on Sep. 21, 2020 and U.S. Provisional Patent Application No. 63/138,133, filed on Jan. 15, 2021. Priority to International Patent Application Serial Number PCT/2021/051373, U.S. Provisional Patent Application No. 63/081,165 and U.S. Provisional Patent Application No. 63/138,133 is hereby claimed. International Patent Application Serial Number PCT/2021/051373, U.S. Provisional Patent Application No. 63/081,165 and U.S. Provisional Patent Application No. 63/138,133 are hereby incorporated herein by reference in their entireties.
Number | Date | Country | |
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63081165 | Sep 2020 | US | |
63138133 | Jan 2021 | US |
Number | Date | Country | |
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Parent | PCT/US2021/051373 | Sep 2021 | WO |
Child | 18187542 | US |