Patent Publication Number: US-10322849-B2

Title: Bakery tray and dolly

Description:
BACKGROUND 
     Bakery trays for carrying and supporting baked items are well-known. The trays generally include a base and side walls extending upward from side edges of the base. Front and rear walls extend upward from front and rear edges of the base, and are shorter than the side walls. 
     SUMMARY 
     A tray includes a base and a pair of opposed side walls extending upward from the base. Each of the side walls includes a plurality of feet providing multiple stacking heights with an identical tray. A rear wall extends upward from a rear the base between the side walls. A front wall extends upward from a front of the base between the side walls, the front wall including a portion lower than the side walls. 
     The tray may optionally include a recess on an inner, upper edge. The tray may optionally include a channel on an outer, upper edge of each side wall. 
     A dolly that can be used with the tray includes a deck having a pair of contiguous support surfaces. 
     The dolly may optionally include a reinforcement rod supporting the pair of support surfaces. A caster includes a caster plate secured to the deck, the reinforcement rod between the caster plate and the deck. 
     In use, the dolly may have a pair of trays stacked thereon, each tray including a base, a pair of opposed side walls extending upward from the base, a rear wall extending upward from a rear the base between the side walls, and a front wall extending upward from a front of the base between the side walls, the front wall including a portion lower than the side walls, wherein the trays protrude over side edges of the dolly. 
     The dolly may optionally include a lip protruding upward from a periphery of the deck. If the trays include a drag rail extending downward of the base and defining a recess inward of the drag rail, the lip of the deck of the dolly can be received in the recess inward of the drag rail of the trays. 
     The dolly may optionally include a central divider between the pair of support surfaces, the divider including a first rail portion projecting upward from a base divider. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front perspective view of a tray according to one embodiment. 
         FIG. 2  is a rear perspective view of the tray of  FIG. 1 . 
         FIG. 3  is a side perspective view of the tray of  FIG. 1 . 
         FIG. 4  is a bottom perspective view of the tray of  FIG. 1 . 
         FIG. 5  is a front view of the tray of  FIG. 1 . 
         FIG. 6  is a rear view of the tray of  FIG. 1 . 
         FIG. 7  is a top view of the tray of  FIG. 1 . 
         FIG. 8  is a bottom view of the tray of  FIG. 1 . 
         FIG. 9  shows the tray of  FIG. 1  with an identical tray cross-stacked thereon. 
         FIG. 10  is a side view of the trays of  FIG. 9  in a low stack position. 
         FIG. 11  is a rear view of the trays of  FIG. 10 . 
         FIG. 12  is a perspective view of the trays of  FIG. 10 . 
         FIG. 13  is a side view of the trays of  FIG. 9  in a low stack position. 
         FIG. 14  is a rear view of the trays of  FIG. 10 . 
         FIG. 15  is a perspective view of the trays of  FIG. 10 . 
         FIG. 16  is a front view of the tray of  FIG. 1  with a prior art tray stacked thereon. 
         FIG. 17  is a side view of the trays of  FIG. 16 . 
         FIG. 18  is the other side view of the trays of  FIG. 16 . 
         FIG. 19  is a perspective view of the trays of  FIG. 16 . 
         FIG. 20  shows the trays of  FIG. 19 , partially broken away. 
         FIG. 21  is a section view of the trays of  FIG. 20 . 
         FIG. 22  is an enlarged view of a portion of the trays of  FIG. 21 . 
         FIG. 23  is a rear view of a prior art tray between two of the trays of  FIG. 1 . 
         FIG. 24  is a side view of the trays of  FIG. 23 . 
         FIG. 25  is a perspective view of the trays of  FIG. 23 . 
         FIG. 26  is a front view of two stacked trays of  FIG. 1 . 
         FIG. 27  is a perspective view of the trays of  FIG. 26  slid to a first position relative to one another. 
         FIG. 28  is a perspective view of the trays of  FIG. 26  slid to a second position relative to one another. 
         FIG. 29  is a perspective view of the trays of  FIG. 26  slid to a third position relative to one another. 
         FIG. 30  is a perspective view of the trays of  FIG. 26  slid to a fourth position relative to one another. 
         FIG. 31  is a side view of the trays of  FIG. 30 . 
         FIG. 32  is a front perspective view of the trays of  FIG. 30 . 
         FIG. 33  is a bottom perspective view of the trays of  FIG. 30 . 
         FIG. 34  is a side view of a first stack of the trays of  FIG. 1  slid across two other stacks of trays of  FIG. 1 . 
         FIG. 35  shows the first stack of trays slid across two uneven stacks of trays. 
         FIG. 36  shows the first stack of trays slid across two uneven stacks of trays. 
         FIG. 37  is a perspective view of a dolly according to a first embodiment with a tray according to a second embodiment thereon. 
         FIG. 38  is a top view of the dolly of  FIG. 37 . 
         FIG. 39  is a bottom view of the dolly of  FIG. 37 . 
         FIG. 40  shows the dolly of  FIG. 37  with two trays stacked thereon. 
         FIG. 41  is a side view of the dolly and trays of  FIG. 40 . 
         FIG. 42  is an end view of the dolly and trays of  FIG. 40 . 
         FIG. 43  is a bottom view of the dolly of  FIG. 37 . 
         FIG. 44  is an enlarged view of a portion of the section view A-A of  FIG. 43 . 
         FIG. 45  is an enlarged view of a portion of the section view B-B of  FIG. 43 . 
         FIG. 46  is an enlarged view of a portion of the section view C-C of  FIG. 43 . 
         FIG. 47  is a perspective view of a dolly according to a second embodiment. 
         FIG. 48  is an enlarged view of the center of the dolly of  FIG. 47 . 
         FIG. 49  is a top view of the dolly of  FIG. 47 . 
         FIG. 50  is a side view of the dolly of  FIG. 47 . 
         FIG. 51  is an end view of the dolly of  FIG. 47 . 
         FIG. 52  is a bottom view of the dolly of  FIG. 47 . 
         FIG. 53  is a bottom perspective of a tray according to a third embodiment. 
         FIG. 54  is a perspective view of the dolly of  FIG. 47  with the tray of  FIG. 53  thereon. 
         FIG. 55  is an enlarged view of the center of the dolly and tray of  FIG. 54 . 
         FIG. 56  is a perspective view of the dolly and tray of  FIG. 55  with a second tray on the dolly. 
         FIG. 57  is an end view of the dolly and trays of  FIG. 56 . 
         FIG. 58  shows the dolly and tray of  FIG. 54  with the dolly in a second orientation. 
         FIG. 59  is an enlarged view of the center of the dolly and tray of  FIG. 58 . 
         FIG. 60  shows the tray and dolly of  FIG. 58  with a second tray on the dolly. 
         FIG. 61  is a side view of the tray and dollies of  FIG. 60 . 
         FIG. 62  is an end view of the tray and dollies of  FIG. 60 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     A bakery tray  10  according to one embodiment of the present invention is shown in  FIG. 1 . The bakery tray  10  includes a base  12 , which may be a grid or lattice of interconnected ribs, a front wall  14 , a rear wall  15 , and side walls  16  and  17 . The front wall  14  and rear wall  15  each include an upper edge  18 , which is lower than the side walls  16 ,  17 . In the front wall  14 , a cut-out portion  19  of reduced height is formed to provide easier access to the interior of the tray  10 . Side flanges  20  extend inwardly into the front wall  14  and rear wall  15  from the side walls  16 ,  17 . 
     Each of the side walls  16 ,  17  includes an interior wall portion  28  and a plurality of ribs  30  projecting outwardly therefrom. The side walls  16 ,  17  include an upper support surface  32  from which projects a side rail  34 , interrupted to accommodate closely-spaced, high feet receiving pockets  35  and widely-spaced low feet receiving pockets  38  on side wall  17  and widely-spaced, high feet receiving pockets  37  and closely-spaced, low feet receiving pockets  39  on side wall  16 . An upper edge of the interior wall portion  28  of the side walls  16 ,  17  includes a chamfered portion  36  providing a recess. 
     The side wall  17  includes a pair of closely-spaced feet  41  each having an outer rib  43  projecting downwardly from an outer edge thereof. The feet  41  are generally aligned with the high feet receiving pockets  35 . The side wall  17  includes a lower wall portion  44  (or drag rail) from which the feet  41  project outwardly. A channel  46  is defined inwardly of the lower wall portion  44 . 
     Referring to  FIG. 2 , the side wall  16  includes a pair of widely-spaced feet  40  each having an outer rib  42  projecting downwardly from an outer edge thereof. The feet  40  are generally aligned with the high feet receiving pockets  37 . The side wall  16  includes a lower wall portion  44  (or drag rail) from which the feet  40  project outwardly. A channel  46  is defined inwardly of the lower wall portion  44 . 
     At front and rear edges of the side walls  16 ,  17 , the side rails  34  include a thicker ribbed portion  50  (alternatively, a double ribbed portion). 
     On the side walls  16 ,  17  in the center between the feet, a center projection  56  protrudes outwardly. An outer projection  58  projects downwardly from an outer edge of the center projection  56  to form a hook for added strength and consistent pivot feature disengagement. 
     As shown in  FIGS. 1 and 2 , a notch  60  is formed in front and rear walls  14 ,  15  adjacent each corner to accommodate cross stack of trays  10  when empty. 
     Referring to  FIG. 2 , the rear wall  15  includes an interior wall portion  22  and a lip  24  extending downwardly from the upper edge  18  of the rear wall  15 . A plurality of vertical ribs  26  protrude from the outer surface of the interior wall portion  22  and into the lip  24 . 
     As can be seen in  FIG. 3 , the feet  40  and center projection  56  are located above a plane of the lowermost edge of the lower wall portion  44  to protect the feet  40  and center projection  56  from damage. 
       FIG. 4  is a bottom perspective view of the tray  10 . Drag feet  54  project downward from the base  12  and together with the lower wall portion  44  define the lowermost plane of the tray  10 . The drag feet  54  include angled faces  62  that will impact the dock lift plate and protect the corners of the tray  10 . 
       FIG. 5  is a front view of the tray  10 .  FIG. 6  is a rear view of the tray  10 . As shown, each of the side walls  16 ,  17  includes a channel  52  along an upper outer corner. A notch  64  at the top of each side flange  20  is aligned with the lower wall portion  44  for alignment prior to sliding.  FIG. 7  is a top view.  FIG. 8  is a bottom view. 
       FIG. 9  shows two empty trays  10  cross stacked. The flanges  20  of the lower tray  10  are received in the notches  60  in the front and rear walls  14 ,  15  of the upper tray  10 . The front and rear walls  14 ,  15  of the lower tray  10  are received in the recess  46  inward of the lower wall portion  44  of the upper tray  10 . In the cross-stacked position, the front wall  14  and rear wall  15  of the upper tray  10  are received between the side walls  16 ,  17  of the lower tray  10 . The side walls  16 ,  17  of the upper tray  10  extend outwardly of the front and rear walls  14 ,  15  of the lower tray  10 . In particular, the upper edges  18  ( FIG. 1 ) of the front and rear walls  14 ,  15  of the lower tray  10  are received in the channels  46  of the side walls  16 ,  17  of the upper tray  10 , such that the lower portion  44  of the side walls  16 ,  17  is interlocked on the exterior surface of the front and rear walls  14 ,  15  of the lower tray  10 . 
       FIG. 10  is a side view of the two trays  10  stacked in the low position, i.e. with the front wall  14  of the upper tray  10  aligned over the rear wall  15  of the lower tray  10 , the side wall  16  of the upper tray  10  is aligned over the side wall  17  of the lower tray  10 , and the side wall  17  of the upper tray  10  is aligned over the side wall  16  of the lower tray. The widely-spaced feet  40  of the side wall  16  of the upper tray  10  are received in the widely-spaced, low feet receiving pockets  38  of the side wall  17  of the lower tray  10 . The closely-spaced feet  41  of the side wall  17  of the upper tray  10  are received in the closely-spaced, low feet receiving pockets  39  of the side wall  16  of the lower tray  10 . In the low stacked position, the base  12  of the upper tray  10  is closer to the base  12  of the lower tray  10  for more efficient stacking of goods that are not as high within the trays  10 .  FIG. 11  is a front view of the two trays  10  in the low stacked position.  FIG. 12  is a perspective view of the trays  10  in the low stacked position. 
       FIG. 13  is a side view of the two trays  10  stacked in the high position, i.e. with the front wall  14  of the upper tray  10  aligned over the front wall  14  of the lower tray  10 , such that the feet  40  of the upper tray  10  are received in the high feet receiving pockets  35 ,  37  of the lower tray  10 . To achieve the stacked high position, the trays  10  are aligned with one another such that the front, rear and side walls  14 ,  15 ,  16 ,  17  of the lower tray  10  are aligned with the front, rear and side walls  14 ,  15 ,  16 ,  17  of the upper tray  10 , respectively. In this position, the feet  40  on the side wall  16  are received within the pockets  37  on the side wall  16  of the lower tray. Similarly, the closely spaced apart feet  41  (not shown) on the side wall  17  of the upper tray  10  are received within the closely spaced pockets  35  (not shown) of the side wall  17  of the lower tray  10 .  FIG. 14  is a front view of the two trays  10  in the high stacked position.  FIG. 15  is a perspective view of the trays  10  in the high stacked position. 
     It should be noted that the arrangement of the feet  40 ,  41  could be changed in various ways. For example, the high stack position could be provided when the trays  10  are aligned with the front wall  14  over the rear wall  15 . Additionally, the feet  40 ,  41  could differ from each other in arrangement in ways other than “closely-spaced” and “widely-spaced.” 
     The tray  10 , in addition to providing multiple stack heights and a cross-stack position, is also compatible with a prior art tray  110  as shown in  FIGS. 16-25 . In  FIG. 16 , the prior art tray  110 , which only provides a single stack height, is shown stacked on the tray  10 . The prior art tray  110  includes a rear wall  118  and side walls  116 ,  117 . The side walls  117  include a downwardly directed outer rail  160 , which is spaced outwardly of an inner support wall  162  by a channel  164 . When the prior art tray  110  is stacked on the tray  10 , the support wall  162  rests on the upper surface  32  of the side walls  16 ,  17 . The outer rail  160  is received in the channel  52  of the side walls  16 ,  17  and the rail  34 , including the end portions  50  thereof, are received in the recess  164  in the prior art tray  110 .  FIGS. 17 and 18  are side views of the tray  10  and prior art tray  110  of  FIG. 13 .  FIG. 19  is a perspective view of the tray  10  and prior art tray  110 . 
     In  FIG. 20 , the trays  10 ,  110  are partially broken away. The prior art tray  110  includes an inner rail  166  extending from the support wall  162  to a similar support wall  162  at the other end of the tray  110 . 
       FIG. 21  is a section view through the trays  10 ,  110  of  FIG. 20 .  FIG. 22  is an enlarged view of a portion of  FIG. 21 . As shown, the chamfer  36  in the side wall  16  provides a recess that accommodates the support wall  162  in the prior art tray  110 . The side rail  34  is received within the channel  164  of the prior art tray  110 . The outer rail  160  is received in the channel  52  in the side wall  16  of the lower tray  10 . Thus, the prior art tray  110  can be stacked stably on the tray  10 . 
     As shown in  FIGS. 23-25 , the tray  10  can also be stacked stably on the prior art tray  110 . The prior art tray  110  includes an upper support surface  168  on the side walls  116 ,  117 . A channel  170  is formed at an upper outer edge of the support surface  168  on the side walls  116 ,  117 . The feet  40 ,  41  of the upper tray  10  are supported on the support surface  168  of the prior art tray  110 , with the ribs  42 ,  43  received in the channel  170  of the side walls  116 ,  117 . 
       FIG. 26  is a front view of the tray  10 , with the identical tray  10  stacked thereon. The feet  40 ,  41  are supported on the side rails  34  with the ribs  42 ,  43  abutting outer surfaces of the side rails  34  and received in the channels  52 . The lower wall portion  44  (or drag rail) is supported on the notch  64 . 
       FIGS. 27-30  are perspective views showing the top tray  10  sliding relative to the bottom tray  10 .  FIG. 31  is a side view of the trays of  FIG. 30 .  FIG. 32  is a front perspective view of the trays of  FIG. 30 .  FIG. 33  is a bottom perspective view of the trays  10  of  FIG. 30 . 
       FIGS. 34-36  are side views of a first stack of trays  10  sliding across two stacks of trays  10 . In  FIG. 34 , the two lower stacks of trays  10  are even. In  FIGS. 35 and 36 , the lower stacks of trays  10  are uneven (some are in low stacking height position and some are in high stacking height position), but the upper stack of trays  10  can be stably slid across the two lower, uneven stacks of trays  10 . 
       FIG. 37  shows a dolly  300  in use with a tray  210  similar to the tray  10  of  FIGS. 1-36 . The dolly  300  could also be used with the tray  10  of  FIGS. 1-36  similarly. The dolly  300  accommodates two such trays  210  (or two trays  10 ), although only one is shown in  FIG. 37 . Each half of the deck of the dolly  300  includes a central support surface  302  having a large central opening  306  and a large vertical rib  304  extending downwardly around the periphery of the opening  306 . A lip  308  projects upwardly from the periphery of the deck of the dolly  300 . A vertical rib  309  extends across the center of the dolly  300  between the halves of the dolly  300 . 
     The central support surface  302  includes a pair of side channels  310  formed therein for reinforcement and load distribution. The central support surface  302  further includes a pair of caster recesses  312  aligned with casters  316  on the bottom of the dolly  300 . When the dolly  300  is empty, the casters  316  of a similar dolly  300  can be received in the caster recesses  312  to facilitate stacking of empty dollies  300 . The central support surface  302  further includes an end channel  314  adjacent an end of the dolly  300 . 
     The tray  210  is similar to the tray  10  described above and includes side walls  216 ,  217 . Front and rear walls  215 ,  216  are slightly different than those of the previous tray  10 ; however, both trays  10 ,  210  would fit on the dolly  300  the same way. In particular, the width of the dolly  300  is less than the width of the tray  210 . Therefore, the lip  308  is received in the channel  246  inward of the lower wall portion  244  of the side walls  216 ,  217 . The lower wall portions  244  thus project outwardly of the footprint of the dolly  300 . 
       FIG. 38  is a top view of the dolly  300  without the tray. Fastener openings  318  are formed near the caster recess  312 . The fastener openings  318  accommodate fasteners for securing the plate of a caster  316  to the bottom of the dolly  300 . 
       FIG. 39  is a bottom view of the dolly  300 . A plurality of ribs  322  are formed on the underside of the dolly  300 , including a pair of ribs  322  that define a channel  324  for receiving a reinforcement rod  326 . The reinforcement rod  326  could be steel, aluminum, metal, fiber glass, composite or other stiff material. Tabs  328  are formed below the channel  324  to retain the reinforcement rod  326  in the middle of the dolly  300 . At the ends of the dolly  300 , the reinforcement rods  326  extend into the caster areas. In the example shown, the reinforcement rods  326  extend adjacent the fastener receiving openings  318 , such that the reinforcement rods  326  would be secured to the deck of the dolly  300  by the caster plates  334  (one shown in phantom in  FIG. 39 ) of the casters  316  ( FIG. 37 ). A bottom wall  330 , which is the bottom wall of the caster recess  312  ( FIG. 37 ), also contacts the reinforcement rod  326  on top of the reinforcement rod  326 . Thus, the reinforcement rod  326  is locked between the caster plate  334  and the bottom wall  330  of the caster recess  312 . The caster recess  312  ( FIG. 37 ) also distributes the load on the reinforcement rod  326  outwardly across a larger area on the dolly  300 . 
       FIG. 40  illustrates the dolly  300  with two trays  210  placed thereon. Again, the lips  308  are received in the channels  246  of the trays  210  such that the lower wall portions  244  are outside the footprint of the dolly  300 . 
       FIG. 41  is a side view of the dolly  300  and trays  210  of  FIG. 25 . As shown in this example, the trays  210  do not extend outside the footprint of the dolly  300  at the ends of the dolly  300 ; however, the trays  210  could alternatively extend past the ends as well. 
       FIG. 42  is an end view of the dolly  300  and the tray  210 . The lower wall portion  244  of the tray  210  extends down past the lip  308  of the dolly  300  and the lip  308  is received in the channel  246  of the tray  210 . 
       FIG. 43  is a bottom view of the dolly  300  and trays  210  of  FIG. 25 . 
       FIG. 44  is a section view taken along line A-A of  FIG. 28 . The lip  308  is received in the channel  246  and the lower wall portion  244  is exterior of the dolly  300  and the lip  308 . The reinforcement rod  326  is within the channel  324  and secured from the underside by one of the tabs  328 . The base  212  of the tray  210  is supported on the central support surface  302 . 
       FIG. 45  is a section view taken along line B-B of  FIG. 28 . A lower wall  311  of the recess  310  contacts the upper surface of the reinforcement rod  326  to distribute the load on the dolly  300  to the reinforcement rod  326 . 
       FIG. 46  is a section view taken along line C-C of  FIG. 28 . 
       FIGS. 47-62  show a dolly  400  according to a second embodiment of the present invention. The dolly  400  is the same as the dolly  300  of  FIG. 37  except as described below or shown in the drawings. The dolly  400  accommodates two trays, as before. Each half of the dolly  400  includes a central support surface  402  having a large central opening  406  and a large vertical rib  404  extending downwardly around the periphery of the opening  406 . A lip  408  projects upwardly from the periphery of the dolly  400 . A divider  409  divides the halves of the dolly  400 . 
     The central support surface  402  includes a pair of side channels  410  formed therein for reinforcement and load distribution. The central support surface  402  further includes a pair of caster recesses  412  aligned with casters  416  on the bottom of the dolly  400 . When the dolly  400  is empty, the casters  416  of a similar dolly  400  can be received in the caster recesses  412  to facilitate stacking of empty dollies  400 . The central support surface  402  further includes an end channel  414  adjacent each end of the dolly  400 . Fastener openings  418  are formed adjacent each caster receiving recess  412 . 
     In each half of the dolly  400 , a recess  436  is formed through the lip  408  and central support surface  402 . Another recess  438  is formed through the divider  409  and adjacent a portion of the central support surface  402 . Another recess  438  is formed in each end of the dolly  400 , adjacent a drag rail nesting cavity  440  adjacent each end of the dolly  400 . These recesses  436 ,  438  accommodate J-hooks used to lift and pull a stack of trays off the dolly  400 . 
     Drag feet nesting cavities  446  are formed in each corner of the dolly  400 . Drag feet nesting cavities  444  are also formed adjacent the edges of the dolly  400  along the center line dividing the halves of the dolly  400 .  FIG. 48  is an enlarged view of the divider  409  of the dolly  400 . The divider  409  includes a plurality of raised surfaces and ribs, as shown. The divider  409  includes a base divider  450  separating the two drag rail receiving channels  442 . A first rail portion  452  projects upwardly from the center of the base divider  450 . A second rail portion  454  projects upwardly from the first rail portion  452  adjacent the drag feet nesting cavities  444 . 
       FIG. 49  is a top view of the dolly  400 .  FIG. 50  is a front view of the dolly  400 .  FIG. 51  is a side view or end view of the dolly  400 . 
       FIG. 52  is a bottom view of the dolly  400 . A plurality of ribs  422  are formed on the underside of the dolly  400 , including a pair of ribs  422  that define a channel  424  for receiving a reinforcement rod  426 . The reinforcement rod  426  could be steel, aluminum, metal, fiber glass, composite or other stiff material. Tabs  428  are formed below the channel  424  to retain the reinforcement rod  426  in the middle of the dolly  400 . At the ends of the dolly  400 , the reinforcement rods  426  extend into the caster areas. In the example shown, the reinforcement rods  426  extend adjacent the fastener receiving openings  418 , such that the reinforcement rods  426  would be secured to the dolly  400  by the caster plates  434  (one shown in phantom in  FIG. 52 ). 
     A tray  510 , similar to the trays  10 ,  210  described above, is shown in  FIG. 53 , which is a bottom perspective view. The tray  510  includes a base  512 , front wall  514  and side walls  516 ,  517 . Stacking feet  540  extend downward from each side wall  516 ,  517 . Each stacking foot  540  includes an outer rib  542  projecting downwardly therefrom. A short wall drag rail  544  projects downwardly from the base  512  below each of the side walls  516 ,  517 . Drag feet  554  are formed inwardly of the drag rails  544  along the front and rear of the tray  510 . 
     The dolly  400  can carry two of the trays  510  in either of two 90° orientations, shown generally in  FIGS. 56 and 60 . 
       FIG. 54  illustrates the dolly  400  with a single tray  510  stacked thereon in a first orientation.  FIG. 55  is an enlarged view of a portion of  FIG. 54 . As shown in  FIG. 55 , the lip  408  of the dolly  400  is received in the channel  546  formed adjacent the drag rail  544 . The drag feet  554  are received in the drag feet nesting cavities  444  on the dolly  400 . The base divider  450  also keeps the tray  510  in place on the dolly  400 . 
     Referring to  FIG. 56 , in this orientation, the dolly  400  can accommodate two of the trays  510 . As shown, the front walls  514  of the two trays  510  are adjacent one another in the center of the dolly  400 . Referring to  FIG. 57 , the lip  408  is received in the channel  546  inwardly of the drag rail  544 . The drag feet  554  are received in the drag feet nesting cavities  446 . 
       FIG. 58  shows the tray  510  on the dolly  400  in a second orientation, i.e., with the side wall  517  along the center of the dolly  400 .  FIG. 59  is an enlarged view of the central portion of  FIG. 58  (also showing that the tray  510  can be rotated with the rear wall in the center of the dolly  400 ). As shown, the drag rail  544  of the tray  510  is received in the drag wall receiving channel  442 . The rib  542  of the stacking feet  540  abuts the rails  452 ,  454  of the divider  409 . 
     Referring to  FIG. 60  two of the trays  510  can be carried on the dolly  400  in a second orientation, i.e., with the side walls  516 ,  517  adjacent one another in the center of the dolly  400 , and the front walls  514  of the trays  510  facing the same direction on the dolly  400 .  FIG. 61  is a front view of the dolly  400  and trays  510  of  FIG. 60 .  FIG. 62  is a side view of the dolly  400  and one of the trays  510  of  FIG. 60 . As shown, the drag rail  544  is received in the drag rail receiving channel  442 . 
     The trays are integrally molded as a single pieces of plastic. The deck of the dollies are integrally molded as a single piece of plastic. 
     In accordance with the provisions of the patent statutes and jurisprudence, exemplary configurations described above are considered to represent a preferred embodiment of the invention. However, it should be noted that the invention can be practiced otherwise than as specifically illustrated and described without departing from its spirit or scope.