Patent Publication Number: US-11638513-B2

Title: Dishwasher with moveable shelf

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 15/928,792, filed Mar. 22, 2018, now U.S. Pat. No. 10,945,585, which is hereby incorporated by reference in its entirety. 
    
    
     BACKGROUND 
     Dishwashers typically include a tub defining a washing chamber into which dishes are placed to undergo a washing or treating operation. The dishwasher is generally provided with a closure element and dish racks for supporting items during the washing or treating operation 
     BRIEF DESCRIPTION 
     In one aspect, the disclosure relates to a dishwasher having a tub at least partially defining a treating chamber receiving dishes for treatment, a dish rack located in the tub and having a bottom wall and at least a side wall extending upwardly from the bottom wall, the side wall including a set of vertical tines, and a shelf having a planar body extending along a length and operably coupled to the set of vertical tines and rotatable between a stowed position that is substantially vertical and a deployed position that is substantially horizontal. The planar body includes a plurality of guide slots spaced apart from each other along the length. Each guide slot includes an open channel that formed at least in part by a first wall and a second wall, spaced from the first wall. A cross-bar is mounted to the planar body of the shelf and retains at least one vertical tine of the set of vertical tines between the cross-bar and the planar body. A first vertical tine of the set of vertical tines is received within the open channel and the first vertical tine includes a first bend configured to form a first stop such that the shelf can be vertically adjusted to a first height correlating to a height of the first stop. 
     In another aspect, the disclosure relates to a dishwasher having a tub at least partially defining a treating chamber receiving dishes for treatment, a dish rack located in the tub and having a bottom wall and at least a side wall extending upwardly from the bottom wall the side wall including a set of vertical tines and defining a first side and a second side, and a shelf having a planar body extending along a length and operably coupled to a set of vertical tines and rotatable between a stowed position that is substantially vertical and a deployed position that is substantially horizontal. The body includes at least one guide slot. Each guide slot including an open channel formed at least in part by a first wall and a second wall, spaced from the first wall and joined by a rear wall forming a rear surface. A first vertical tine of the set of vertical tines is received within the open channel and the first vertical tine includes a first bend configured to form a first stop such that the shelf can be vertically adjusted to a first height correlating to a height of the first stop. The first wall and second wall are configured to guide movement of the shelf. The rear surface abuts the vertical tine in a manner configured to allow for vertical movement of the shelf along the set of vertical tines between at least a lower position and an upper position. A cross-bar is mounted to the planar body of the shelf and retains at least one vertical tine of the set of vertical tines between the cross-bar and the planar body. 
     In another aspect, the disclosure relates to dishrack for a dishwasher having a bottom wall and at least a side wall extending upwardly from the bottom wall, the side wall including a set of vertical tines. A shelf having a planar body extending along a length and operably coupled to the set of vertical tines and rotatable between a stowed position that is substantially vertical and a deployed position that is substantially horizontal. The planar body includes a plurality of guide slots spaced apart from each other along the length. Each guide slot includes an open channel formed at least in part by a first wall and a second wall, spaced from the first wall. A cross-bar is mounted to the planar body of the shelf and retains at least one vertical tine of the set of vertical tines between the cross-bar and the planar body. A first vertical tine of the set of vertical tines is received within the open channel and the first vertical tine includes a first bend configured to form a first stop such that the shelf can be vertically adjusted to a first height correlating to a height of the first stop. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the drawings: 
         FIG.  1    is a schematic, cross-sectional view of a dishwasher in accordance with various aspects described herein. 
         FIG.  2    is a schematic view of a controller of the dishwasher of  FIG.  1   . 
         FIG.  3    is a perspective view of a dish rack and shelf of the dishwasher of  FIG.  1   . 
         FIG.  4    is an exploded rear view of a portion of the dish rack and the shelf of  FIG.  3   . 
         FIG.  5    is a perspective view of a portion of the dish rack and the shelf of  FIG.  3    in a first position according to aspects of the present disclosure. 
         FIG.  6    is a perspective view of a portion of the dish rack and the shelf of  FIG.  3    in a secondary position according to aspects of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     In  FIG.  1   , an automated dishwasher  10  according to an aspect of the present disclosure is illustrated. The dishwasher  10  shares many features of a conventional automated dishwasher, which will not be described in detail herein except as necessary for a complete understanding of the disclosure. A cabinet or chassis  12  can define an interior of the dishwasher  10  and can include a frame, with or without panels mounted to the frame. An open-faced tub  14  can be provided within the chassis  12  and can at least partially define a treating chamber  16 , having an open face, for washing dishes. A door assembly  18  can be movably mounted to the dishwasher  10  for movement between opened and closed positions to selectively open and close the open face of the tub  14 . Thus, the door assembly provides accessibility to the treating chamber  16  for the loading and unloading of dishes or other washable items. 
     A closure element, such as the door assembly  18 , can be movably mounted to the chassis  12  for movement between opened and closed positions to selectively open and close the treating chamber access opening defined by the open face of the tub  14 . Thus, the door assembly  18  provides accessibility to the treating chamber  16  for the loading and unloading of dishes or other washable items. It should be appreciated that the door assembly  18  can be secured to the lower front edge of the chassis  12  or to the lower front edge of the tub  14  via a hinge assembly (not shown) configured to pivot the door assembly  18 . When the door assembly  18  is closed, user access to the treating chamber  16  can be prevented, whereas user access to the treating chamber  16  can be permitted when the door assembly  18  is open. Alternatively, the closure element can be slidable relative to the chassis  12 , such as in a drawer-type dishwasher, wherein the access opening for the treating chamber  16  is formed by an open-top tub. Other configurations of the closure element relative to the chassis  12  and the tub  14  are also within the scope of the disclosure. 
     Dish holders, illustrated in the form of upper, middle, and lower dish racks  20 ,  22 ,  24 , can be located within the treating chamber  16  and receive dishes for treatment, such as washing. The upper, middle, and lower dish racks  20 ,  22 ,  24  are typically mounted for slidable movement in and out of the treating chamber  16  for ease of loading and unloading. Other dish holders can be provided, such as a silverware basket, separate from or integral with any of the upper, middle, and lower dish racks  20 ,  22 ,  24 . As used in this description, the term “dish(es)” is intended to be generic to any item, single or plural, that can be treated in the dishwasher  10 , including, without limitation, dishes, plates, pots, bowls, pans, glassware, and silverware. While the dishwasher  10  is illustrated herein as having three dish racks  20 ,  22 ,  24 , it will be understood that any suitable number and configuration of dish racks is also within the scope of the disclosure. 
     A spray system is provided for spraying liquid in the treating chamber  16  and can be provided in the form of, for example, an upper spray assembly  26 , a middle spray assembly  28 , and a lower spray assembly  30 . The upper spray assembly  26 , the middle spray assembly  28 , and the lower spray assembly  30  are located, respectively, above the upper dish rack  20 , beneath the middle dish rack  22 , and beneath the lower dish rack  24 , and are illustrated as rotating spray arms by example but are not limited to such positions and sprayer type. Furthermore, the spray system can include additional and/or alternative spray assemblies. For example, a distribution header or spray manifold can be located at the rear of the tub  14  at any vertical position. An exemplary spray manifold is set forth in detail in U.S. Pat. No. 7,594,513, issued Sep. 29, 2009, and titled “Multiple Wash Zone Dishwasher,” which is incorporated herein by reference in its entirety. 
     A recirculation system can be provided for recirculating liquid from the treating chamber  16  to the spray system. The recirculation system can include a sump  34  and a pump assembly  36 . The sump  34  collects the liquid sprayed in the treating chamber  16  and can be formed by a sloped or recess portion of a bottom wall of the tub  14 . The pump assembly  36  can include both a drain pump  38  and a recirculation pump  40 . The drain pump  38  can draw liquid from the sump  34  and pump the liquid out of the dishwasher  10  to a household drain line (not shown). The recirculation pump  40  can draw liquid from the sump  34 , and the liquid can be simultaneously or selectively pumped through a supply conduit or tube  42  to each of the spray assemblies  26 ,  28 ,  30  for selective spraying. The liquid supply tube  42  extends along a wall of the tub  14  and fluidly connect the pump assembly  36  to the spray assemblies  26 ,  28 ,  30 . While not shown, a liquid supply system can include a water supply conduit coupled with a household water supply for supplying water to the treating chamber  16 . 
     A heating system including a heater  44  can be located, for example, within the sump  34  for heating the liquid contained in the sump  34 . The heater  44  can also heat air contained in the treating chamber  16 . Alternatively, a separate heating element (not shown) can be provided for heating the air circulated through the treating chamber  16 . A filtering system (not shown) can be fluidly coupled with the recirculation flow path for filtering the recirculated liquid. 
     A control system including a controller  46  can also be included in the dishwasher  10 , which can be operably coupled with various components of the dishwasher  10  to implement a cycle of operation. The controller  46  can be located within the door assembly  18  as illustrated, or it can alternatively be located somewhere within the chassis  12 . The controller  46  can also be operably coupled with a control panel or user interface  48  for receiving user-selected inputs and communicating information to the user. The user interface  48  can include operational controls such as dials, lights, switches, and displays enabling a user to input commands, such as a cycle of operation, to the controller  46  and receive information. 
     As illustrated schematically in  FIG.  2   , the controller  46  can be coupled with the heater  44  for heating the wash liquid during a cycle of operation, the drain pump  38  for draining liquid from the treating chamber  16 , and the recirculation pump  40  for recirculating the wash liquid during the cycle of operation. The controller  46  can be provided with a memory  50  and a central processing unit (CPU)  52 . The memory  50  can be used for storing control software that can be executed by the CPU  52  in completing an automatic cycle of operation using the dishwasher  10  and any additional software. For example, the memory  50  can store one or more pre-programmed cycles of operation that can be selected by a user and completed by the dishwasher  10 . A cycle of operation for the dishwasher  10  can include one or more of the following steps: a wash step, a rinse step, and a drying step. The wash step can further include a pre-wash step and a main wash step. The rinse step can also include multiple steps such as one or more additional rinsing steps performed in addition to a first rinsing. The amounts of water and/or rinse aid used during each of the multiple rinse steps can be varied. The drying step can have a non-heated drying step (so called “air only”), a heated drying step, or a combination thereof. These multiple steps can also be performed by the dishwasher  10  in any desired combination. 
     The controller  46  can also receive input from one or more sensors  54 . Non-limiting examples of sensors that can be communicably coupled with the controller  46  include a temperature sensor and turbidity sensor to determine the soil load associated with a selected grouping of dishes, such as the dishes associated with a particular area of the treating chamber  16 . 
     The dishwasher  10  can include all of the above exemplary systems, a selection of the above exemplary systems, and/or other systems not listed above as desired. Further, some of the systems can be combined with other systems and/or can share components with other systems. Examples of other systems that the dishwasher  10  can further include are a dispensing system that supplies one or more treating agents or chemistries to the treating chamber  16  and an air supply system that can provide air, which can be heated or not heated, to the treating chamber  16 , such as for drying and/or cooling the dishes. An exemplary air supply system is set forth in U.S. patent application Ser. No. 12/959,673, filed Dec. 3, 2010, and published as U.S. Patent Application Publication No. 2012/0138106 on Jun. 7, 2012, both of which are incorporated herein by reference in their entireties. 
     Dish rack  22  can optionally include any number of accessory structures permanently fixed or removably provided on the dish rack  22 . Accessory structures can be directed toward the accommodation of additional dishes or differently sized items to increase the number of items capable of being loaded into the dish rack  22  for treating. Accessory structures can include, but are not limited to, silverware baskets and/or caddies, utensil racks and/or caddies, shelves, bottle washers, rotatable tines and/or nozzles, removable dish rack inserts, and other baskets for silverware, utensils, and/or small items. In traditional dishwashers, these accessory structures can occupy valuable space in the dish rack that would be otherwise available for receiving dishes. In addition, the location of these accessory structures in a dish rack can interfere with the ability to move an upper dish rack in and out of a dishwasher without contacting an accessory structure provided in a lower dish rack. 
     Aspects of the present disclosure relate to one or more shelves for supporting items to be cleaned. Such shelves can be included in the dish holders or dish racks of the dishwasher  10 . By way of non-limiting example, a shelf  200  can be included in any of the dish racks and has been illustrated within dish rack  22 . The shelf  200  can be configured to pivot between a horizontal position ( FIG.  5   ) where it can more easily support dishes and a vertical position where it can be stored. Aspects of the present disclosure include, among other things, a shelf that is simple and easy to operate, has reduced cost and part counts, and does not interfere with other dish racks. Further, while the figures illustrate a front-loading dishwasher, it will be understood that aspects of the disclosure can alternately be utilized within drawer type dishwashers. In the case of dishwashers utilizing multiple dish racks  FIG.  3    illustrates an exemplary dish rack  22  having a shelf  200  according to an aspect of the present disclosure. It will be understood that the described structure and features of the dish rack  22  are suitable for use in any or all dish racks  20 ,  22 ,  24 . The dish rack  22  can be constructed of a wire frame  120  forming opposing side walls  122 , front wall  124 , rear wall  126 , and a bottom wall  128  that together define an open-top holding compartment or interior  130  with the side walls  122 , front wall  124 , and rear wall  126  extending upwardly from the bottom wall  128 . The side walls  122 , front wall  124 , and/or rear wall  126  can include a set of vertical tines  132 . The set of vertical tines  132  can comprise a first side  140  facing the interior  130  and defining an interior side of the dish rack  22 , and a second side  142  generally opposite the first side  140  and defining an exterior side of the dish rack  22 . The bottom wall  128  can have a constant profile or can have a varied profile comprising any combination of inclined, curved, or flat sections or plurality of sections. The varied profile can be utilized to support various dishes. Additionally or alternatively, a plurality of supports such as panels, tines, or other structures, can extend upwardly from the bottom wall  128 , the side walls  122 , the front wall  124 , or the rear wall  126  to support various dish items. While the dish rack  22  is illustrated as constructed of coated wire, the dish rack  22  can be constructed of other suitable materials including, but not limited to, uncoated wire, thermoformed plastic, or metal. 
     The shelf  200  can be provided generally within the interior  130  and can extend along at least a portion of a length of one of the walls forming the dish rack  22 . In the illustrated example, the shelf  200  is illustrated as extending along approximately half of the side wall  122 . The shelf  200  is operably coupled to the set of vertical tines  132  and is capable of pivoting or rotating between an upright or stowed position, as illustrated, and one or more deployed positions that can be more laid-down than the stowed position, including a substantially horizontal position ( FIG.  5   ). As used herein, a “substantially horizontal position” refers to a position of the shelf  200  that is more horizontal than the upright position such that items placed on the shelf  200  will not be dislodged by gravity or by a spraying liquid. Further still, the shelf  200  can be operably coupled with the set of vertical tines  132  in such a manner that the shelf  200  can be vertically adjusted between one or more vertical positions. The shelf  200  can be rotated between its upright position and the one or more deployed position. 
     In another aspect, the dish rack  22  can include two or more shelves  200  provided along the length of the side wall  122  in succession. The two or more shelves  200  can be operated independently of each other. Further still, the shelf  200  can be included on multiple opposing side walls  122 , front wall  124 , or rear wall  126 . 
       FIG.  4    illustrates an exploded rear view of the shelf  200  and a portion of the dish rack  22 . A planar body  202  of the shelf  200  can extend along a length  143  of the set of vertical tines  132 , and at least one cross-bar  204  is configured to mount to the planar body  202  after the planar body  202  is placed adjacent the dish rack  22 . The planar body  202  generally comprises a frame  206 , spanning a length  207  of the planar body  202 , which can, by way of non-limiting example, form a grid-like pattern configured to support small dishes to be treated and configured to allow liquid to pass through the frame  206  during a treating cycle. A set of spaced protrusions  208  can extend upwardly from a portion of the frame  206  when the shelf  200  is in the deployed position to support or retain various dishes. A set of spaced apart U-shaped elements  210  can also be included along the length  207  forming a first end  211  of the frame  206  such that when the shelf  200  is deployed, each U-shaped element  210  can accommodate and retain small items such as, but not limited to, stemmed glassware, bottle tops, or small kitchen utensils. 
     One or more guide slots  212  can be operably coupled or integrally formed with the planar body  202 . In the case where multiple guide slots  212  are included, as illustrated, the guide slots  212  are in a spaced apart relationship along a second end  213  of the frame  206  that is parallel to the first end  211 . A first wall  214  and a second wall  216  at least partially form an open channel  217  for each guide slot  212 . The first wall  214  can be spaced from and joined to the second wall  216  by a rear wall  218  forming a rear surface  220 . The open channel  217  can receive at least one of the vertical tines in the set of vertical tines  132 . That is one of the set of vertical tines  132  can be located between the first wall  214  and the second wall  216 . In this manner, the first wall  214  and the second wall  216  can guide vertical movement of the shelf  200  along the vertical tine of the set of vertical tines  132  within the open channel  217  and prevent lateral movement of the shelf  200 . The rear surface  220  can include a shape, profile, or contour to aid in movement of the shelf  200 . By way of non-limiting, the rear surface  220  can include a curved profile. The one or more guide slots  212  can be shaped in any suitable manner to guide rotatable and vertical movement of the shelf  200 . 
     One or more pair of spaced walls  222  can be provided on the second end  213  of the frame  206  on the length  207  of the planar body  202 . Each spaced wall  222  is illustrated as including an aperture  224 , which can be in the form of a slot, gap, opening, or slit configured to receive the cross-bar  204 . By illustrated example, the aperture  224  is in the form of a C-shaped slot formed in each of the spaced walls  222 . It will be understood that the shelf  200  can have any suitable shape and profile and can be formed of any suitable material. While the shelf  200  is illustrated as a thermoformed plastic, the shelf  200  can be constructed of one or more other suitable materials including, but not limited to, coated or uncoated wire, or a metal such as stainless steel. 
     An elongate body  230  and one or more retaining members  234  provided at one or both distal end regions of the elongate body  230  can be included in the cross-bar  204 . In the illustrated example, the cross-bar  204  comprises a cylindrical shape. As illustrated in  FIG.  4   , a pair of spaced retaining members  234  can be provided on each of the distal ends of the elongate body  230  forming a coupling space  236  that is snap-fit and retained in the seat of the C-shaped slot  224  to prevent lateral movement of the cross-bar  204  out of the C-shaped slots  224 . Alternatively, a single retaining member  234  can be provided at one or both distal ends or end regions of the elongate body  230 . The cross-bar  204  can be form in any suitable manner such that it can be received and retained in the aperture  224 . By way of non-limiting example, the aperture  224  and cross-bar  204  can be correspondingly formed such that the cross-bar is snap-fit into the C-shaped slot  224  and can rotate while retained in the C-shaped slot  224 . 
     The dish rack  22  can further comprise stops correlating to varying vertical heights at which the shelf  200  can be adjusted. Once at the desired vertical height, the shelf  200  can be pivoted to the upright position or deployed position. In an aspect of the present disclosure, the set of vertical tines  132 , along the sidewall  122  along which the shelf  200  is located, include one or more of a vertical tine  133 ,  134 , and/or  135 . The one or more vertical tines  133  can extend vertically from the bottom wall  128  or from a horizontal portion  150  generally located at the midline of the side wall  122  of the dish rack  22 . The one or more vertical tines  133  can include a first bend  240  vertically spaced from the horizontal portion  150 . The horizontal portion  150  can forms a first stop  160  configured to engage the cross-bar  204  or the spaced walls  222  such that the shelf  200  can be vertically adjusted to an initial height H 0  correlating with the vertical height location of the first bend  240 . The one or more vertical tines  134  can be similar in structure to the vertical tines  133  and can further include a second bend  250 , vertically spaced from the first bend  240 , forming a second stop  260  where the second stop  260  is configured to engage the rear surface  220  of the guide slot  212  such that the shelf  200  can be vertically adjusted to a first height H 1  correlating with the vertical height location of the second stop  260 . The set of vertical tines  132  can further include one or more vertical tines  135  having third bend  252 , vertically spaced from the second bend  250 , forming a third stop  262  where the third stop  262  engages the rear surface  220  of the guide slot  212  such that the shelf  200  can be vertically adjusted to a second height H 2  correlating with the vertical height location of the third stop  262 . Each set of vertical tines  132  can include multiple vertical tines  133 ,  134  and  135  in a sequential or substantially alternating pattern. It is further contemplated that one or more vertical tines in the set of vertical tines  132  can include any combination of the first bend  240 , the second bend  250 , and the third bend  252 . 
       FIG.  5    illustrates a portion of the dish rack  22  with the shelf  200  in a horizontal deployed position. As assembled, the planar body  202  is provided on the interior of the dish rack  22  and can engage the first side  140  of the set of vertical tines  132 , and the cross-bar  204  is provided exterior to the dish rack  22  and engages the second side  142  of the set of vertical tines  132  such that the cross-bar  204  retains one or more of the set of vertical tines  132 , between the cross-bar  204  and the planar body  202 . Regardless of the rotational position of the planar body  202 , the rear surfaces  220  of the guide slots  212  are biased against and engaged with the first side  140  of the vertical tines  134  at the vertical height of the second stop  260  while the cross-bar  204  is biased against the second side  142  of the vertical tines  133  retained between the cross-bar  204  and the planar body  202 . In the illustrated example, two vertical tines  133  are retained between the cross-bar  204  and the planar body  202 . The two vertical tines  133  are additionally laterally retained between the spaced walls  222  of the planar body  202 . 
     Further still, the guide slots  212  each retain one of the set of vertical tines  132  including both vertical tines  134  and vertical tines  135 . The set of vertical tines  132  is received in the open channel  217  such that the rear surface  220  of the guide slot  212  is configured to abut the first side  140  of the vertical tine  134 ,  135 . The guide slots  212  are engaged with the second vertical stops  260  such that the planar body  202  is at the first height H 1 . The shelf  200  is biased by the second stop  260  in the deployed position at the first vertical height H 1  until an upward or downward force is applied to the planar body  202  to release the biases of the rear surfaces  220  of the guide slots  212  engaged with the second stop  260  and the cross-bar  204  engaged with the vertical tines  133 . 
     To adjust the height of the shelf  200 , a user can apply an upward or downward force to the planar body  202 . The first wall  214  and the second wall  216  of the guide slots  212  guide the vertical movement of the shelf  200  along each one of the set of vertical tines  132  received in the open channels  217  and the shelf  200  can then be adjusted upward or downward to the one or more of the vertical heights H 0 , H 1 , and H 2 . 
       FIG.  6    illustrates a portion of the dish rack  22  with the shelf  200  in the deployed position at the second height H 2 , which correlates with the height of the third stop  262 . In such a vertical position, the guide slots  212  align with the third stop  262  of the vertical tines  135 . During vertical movement of the shelf  200 , the first wall  214  and the second wall  216  guide movement of the shelf  200  along the vertical tine  134 ,  135  within the open channel  217  and prevent lateral movement of the shelf  200 . The rear surface  220  can include a shape, profile, or contour to aid in movement of the shelf  200 . By way of non-limiting, the rear surface  220  can include a curved profile that aides in guiding or enabling vertical movement of the shelf  200  along the vertical tines  133 ,  134 ,  135  when the shelf  200  is in the stowed position and can abut the vertical tine  133 ,  134 ,  135  to enable the shelf  200  to adjust between one or more vertical positions. 
     To pivot or rotate the planar body  202 , a user can pivot the planar body  202  about the axis of cross-bar  204 . For example, when pivoting to a stowed position, as the planar body  202  pivots toward a substantially upright and vertical position, the rear surfaces  220  of the guide slots  212  release the bias with the bends  240 ,  250 , or  260  in the vertical tines  134  and  135 , while the cross-bar  204  releases the bias with the vertical tines  133  such that the cross-bar can rotate in the C-shaped slots  224 . Regardless of the rotational position of the planar body  202 , the rear surfaces  220  of the guide slots  212  can remain engaged or abutted to the first side  140  of the vertical tines  134 ,  135 , while the cross-bar can remain engaged or abutted to the second side  142  of the vertical tines  133 . The guide slots  212  can interface with the vertical tines  134  and  135  such that the shelf  200  can be retained in the stowed position. Further, the weight of the shelf  200  aides in keeping the shelf  200  in the stowed position and from moving without user assistance. The shelf  200  can be vertically adjusted when in the stowed position. Once the shelf  200  is in the upright stowed position, the first wall  214  and second wall  216  of the guide slots  212  can guide the vertical movement of the shelf  200  along the set of vertical tines  132  received in the open channels  217  and the shelf  200  can be adjusted upward or downward while in the upright stowed position. 
     By further example, when pivoting to a deployed position, as the planar body  202  pivots toward a substantially horizontal position, the rear surfaces  220  of the guide slots  212  bias against the first side  140  of the vertical tines  134 ,  135 , while the cross-bar  204  biases against the second side  142  of the vertical tines  133  retained between the cross-bar  204  and the planar body  202 . The shelf  200  can be vertically adjusted when in the deployed position. 
     Alternatively, it is contemplated that when the shelf  200  is deployed, the biases of the rear surfaces  220  of the guide slots  212  against the vertical tines  133 ,  134 ,  134  can prevent vertical adjustment of the shelf  200  and lock the shelf  200  in a vertical, deployed position until the planar body  202  is pivoted upward. 
     When the shelf  200  is in the one or more deployed positions, the shelf  200  can support dishes to be washed such as, but not limited to, cups, mugs, bowls, utensils, bottles, and lids, on an upward facing side, and to support dish items such as stemware, bottle tops along the first end  211 . Additionally, the shelf  200  can help prevent items provided in the dish rack from ejecting from the dish rack  22  during a cycle on a lower side that faces the interior  130  of the dish rack  22 . 
     In a traditional dishwasher, complex shelf assemblies can be a significant contributor to space constraints in a dishwasher and a dish rack. The presence of shelf assemblies can create a large profile when in the stowed and upright position, consuming valuable treating chamber space. Additionally, when in the stowed position, the presence of a shelf assembly often limits the ability to stow the shelf low enough with respect to the uppermost edge of the dish rack above, so that an upper dish rack does not move in and out of the dishwasher tub freely without contacting the stowed shelf located in the dish rack below. 
     Aspects of the present disclosure remove the need for a complex shelf assembly on which to vertically adjust the shelf by incorporating structural modifications to the vertical dish rack tines to provide vertical adjustability to a shelf and simplify the design. Removal of the complex shelf assembly provides increased usable space in a dish rack with a shelf when the shelf is deployed or stowed. Additionally, aspects of the present disclosure stow the shelf at a lower vertical position to avoid interfering with the movement of an upper dish rack. 
     To the extent not already described, the different features and structures of the various aspects can be used in combination with each other as desired. That one feature cannot be illustrated in all of the aspects is not meant to be construed that it cannot be, but is done for brevity of description. Thus, the various features of the different aspects can be mixed and matched as desired to form new aspects, whether or not the new aspects are expressly described. Combinations or permutations of features described herein are covered by this disclosure. 
     This written description uses examples to disclose aspects of the disclosure, including the best mode, and also to enable any person skilled in the art to practice aspects of the disclosure, including making and using any devices or systems and performing any incorporated methods. While aspects of the disclosure have been specifically described in connection with certain specific details thereof, it is to be understood that this is by way of illustration and not of limitation. Reasonable variation and modification are possible within the scope of the forgoing disclosure and drawings without departing from the spirit of the disclosure, which is defined in the appended claims.