Patent Application
20120306336
1. Field of the Invention
The embodiments described herein relate generally to a shelving support system, and more particularly to a shelving support system that may be used within an appliance.
2. Description of Related Art
At least some known appliances, such as refrigeration appliances, include cantilevered shelves for supporting items within a storage compartment of the appliance. At least some of these shelves can be adjusted to different heights within the storage compartment by a user of the appliance. For example, some known shelves are removed from the storage compartment and re-attached into the storage compartment at a different height. In such known shelving systems, a series of holes into which the shelf can be coupled are visible when the storage compartment is accessed. Further, it can be difficult to re-attach a shelf to a set of holes at a desired height.
At least one other known cantilevered shelving system includes a track having relatively narrow notches defined along side walls of the track. A shelf is moveable along the track to different heights without being removed from the track. However, such notches may be difficult for the user to find and/or couple the shelf within when adjusting a height of the shelf. As such, the shelf may not be oriented properly within the storage compartment, i.e., not substantially horizontally oriented, and/or may not be completely seated within a notch, which may cause the shelf to become inadvertently disengaged from the notch.
In one aspect, a support system for use in an appliance is provided. The support system includes at least one brace including a locking bar and at least one substantially vertical track configured to support the at least one brace at a plurality of user-selectable heights within the appliance. The at least one track includes a first side wall and a second side wall defining a channel therebetween, and a first series of teeth extending from the first side wall into the channel. Each tooth of the first series of teeth defines one height of the plurality of user-selectable heights. The locking bar is configured to be supported at a first end on any tooth of the first series of teeth.
In another aspect, an appliance is provided. The appliance includes at least one storage compartment including a plurality of interior walls at least partially defining a cavity of the at least one storage compartment and a door at least partially defining the cavity. The appliance further includes a support structure positioned within the cavity of the at least one storage compartment, and a support system coupled to at least one of at least one interior wall of the plurality of interior walls and the door. The support system includes at least one brace having a locking bar. The at least one brace is coupled to the support structure and configured to support the support structure within the at least one storage compartment. The support system further includes at least one substantially vertical track configured to support the at least one brace. The at least one track includes a first side wall and a second side wall defining a channel therebetween, and a first series of teeth extending from the first side wall into the channel. The locking bar is configured to be supported at a first end on a tooth of the first series of teeth at a selected height within the appliance.
In yet another aspect, a support system for use in an appliance including a plurality of interior walls at least partially defining a cavity of the appliance is provided. The support system includes a brace having a locking bar, and a substantially vertical track configured to couple within the cavity to support the brace within the cavity of the appliance. The track includes a first side wall and a second side wall defining a channel therebetween, and a first series of teeth extending from the first side wall into the channel. The locking bar is configured to be supported at a first end on a tooth of the first series of teeth at a selected height within the appliance.
In one aspect, an adjustable shelf support system for use in an appliance is provided. The support system includes at least one brace having a locking bar, and at least one substantially vertical track configured to support the at least one brace at a plurality of user-selectable heights within the appliance. The at least one track includes a first side wall and a second side wall defining a channel therebetween, and a first series of teeth extending from the first side wall into the channel. Each tooth defining one height of the plurality of user-selectable heights. The locking bar is configured to be supported on any tooth of the first series of teeth and is movably received in the channel. The brace is rotatable between an engaged position in which the locking bar is supported by one tooth of the first series of teeth and a disengaged position in which the locking bar is disengaged from the first series of teeth and free to move vertically in said channel to another selectable height of the plurality of user-selectable heights.
In another aspect, an adjustable shelf support system for use in an appliance is provided. The support system includes at least one brace having a locking bar, and at least one substantially vertical track configured to support the at least one brace at a plurality of selectable heights within the appliance. The at least one track includes a first side wall and a second side wall defining a channel therebetween, a first series of teeth extending from the first side wall into the channel, and a second series of teeth extending from the second side wall into the channel. Each tooth of the first series of teeth defines one height of the plurality of selectable heights. The locking bar is configured to be supported at a first end on any tooth of the first series of teeth. Each tooth of the second series of teeth is associated with a corresponding tooth of the first series of teeth to form a set of opposing support teeth. A second end of the locking bar is supported on the tooth of the second series of teeth corresponding to the tooth of the first series of teeth supporting the first end of the locking bar. The brace is movably received in the channel and rotatable between an engaged position in which the first end of the locking bar and the second end of the locking bar are supported by the set of opposing support teeth and a disengaged position in which the first and second ends of the locking bar are disengaged from the set of opposing support teeth and free to move vertically in the channel to another selectable height of the plurality of selectable heights.
In still another aspect, an appliance is provided. The appliance includes at least one storage compartment including a plurality of interior walls at least partially defining a cavity of the at least one storage compartment and a door at least partially defining the cavity. A support structure is positioned within the cavity of the at least one storage compartment, and a support system coupled to at least one interior wall of the plurality of interior walls and/or the door. The support system includes at least one brace having a locking bar. The at least one brace is coupled to the support structure and configured to support the support structure within the at least one storage compartment. The support system further includes at least one substantially vertical track configured to support the at least one brace. The at least one track includes a first side wall and a second side wall defining a channel therebetween and a first series of teeth extending from the first side wall into the channel. The locking bar is configured to be supported at a first end on a tooth of the first series of teeth at a selected height within the appliance. The locking bar is movably received in the channel and the brace is rotatable between an engaged position in which the locking bar is supported by one tooth of the first series of teeth and a disengaged position in which the locking bar is disengaged from the first series of teeth and free to move vertically in the channel to another selectable height.
The embodiments described herein provide a hidden cantilever shelf support system. The support system described herein enables a height of a shelf, or other suitable support structure, to be more easily adjustable as compared to known cantilever shelf support systems. More specifically, the height of a herein-described support assembly can be adjusted without removing the support assembly from a track, which has multiple, spaced-apart teeth that extend from a side wall into a channel. Further, the tracks described herein enable a support assembly to be secured into position on a tooth such that the support assembly is not inadvertently disengageable. The teeth of the tracks are easier for a user to find and position a support assembly thereon, as compared to tracks that include relatively narrow notches into which a shelf is positioned. More specifically, the support assembly seats more securely on the teeth, as compared to a shelf seated within a relatively narrow notch. As such, the embodiments described herein facilitate assuring that a support assembly will remain in a substantially horizontal alignment when seated.
In the exemplary embodiment, refrigeration appliance 10 includes a fresh food storage compartment 12, also referred to as a “refrigerator,” and a freezer storage compartment 14. A controller 16 is mounted within refrigeration appliance 10, and is programmed to control temperatures within fresh food storage compartment 12 and/or freezer storage compartment 14. As used herein, the term “controller” is not limited to just those integrated circuits referred to in the art as microprocessor, but broadly refers to computers, processors, microcontrollers, microcomputers, programmable logic controllers, application specific integrated circuits, and other programmable circuits, and these terms are used interchangeably herein.
Refrigeration appliance 10 also includes a machinery compartment (not shown) that at least partially contains components for executing a known vapor compression cycle for cooling air. The components include, but are not limited to including, a compressor (not shown), a condenser (not shown), an expansion device (not shown), and an evaporator (not shown) connected in series and charged with a refrigerant. The evaporator provides cool air that is used to refrigerate fresh food storage compartment 12 and/or freezer storage compartment 14 via fans (not shown). Collectively, the vapor compression cycle components in a refrigeration circuit, associated fans, and associated storage compartments 12 and/or 14 are referred to herein as a “sealed system.” The sealed system is operable to force cold air through refrigeration appliance 10.
In the exemplary embodiment, fresh food storage compartment 12 and freezer compartment 14 are positioned within an outer case 18 and include inner liners 20 and 22. Fresh food storage compartment 12 and freezer storage compartment 14 each include a plurality of interior walls, such as a first side wall 24, a rear wall 26, and a second side wall 28, formed from a respective inner liner 20 or 22. Walls 24, 26, and 28 at least partially define a cavity 30 of each storage compartment 12 and 14. The exemplary embodiment includes two separate inner liners 20 and 22 to add strength and to maintain manufacturing tolerances. Alternatively, a single liner is formed and a mullion extends between opposite sides of the liner to divide it into freezer storage compartment 14 and fresh food storage compartment 12.
A fresh food door 32 and a freezer door 34 close access openings to fresh food storage compartment 12 and freezer storage compartment 14, respectively, and at least partially define a respective cavity 30. Each door 32 and 34 is rotatable about its outer vertical end between an open position, as shown in
In the exemplary embodiment, shelf assemblies 42 are supported within fresh food storage compartment 12 and/or freezer storage compartment 14 on at least one interior wall 24, 26, and/or 28 by a support system 100, as described in more detail below. Further, shelf/bin assemblies 36 are supported on door 32 and/or 34 using support system 100. Moreover, drawers 38 and/or 40 can also be supported by support system 100. Shelf assembly 42, shelf/bin assembly 36, and drawers 38 and 40 are referred to herein generally as a “support assembly” and/or a “shelf assembly”. In the exemplary embodiment, support system 100 enables heights of each support assembly to be adjusted without removing the support assembly from support system 100. More specifically, support system 100 allows a support assembly to be slid upwards and/or downwards along support system 100 to a desired height.
Support system 100 includes at least one brace 108 and at least one track 102. In the exemplary embodiment of
Brace 108 is configured to couple to shelf panel 104, or other suitable support structure, to support shelf panel 104 within cavity 30 (shown in
Brace 108 includes, in the exemplary embodiment, a locking bar 118. More specifically, locking bar 118 extends from vertical support portion 112, and is formed integrally as one-piece with vertical support portion 112 or coupled to vertical support portion 112. Locking bar 118 is oriented at any suitable angle 120, other than a 0° or 90° angle, with respect to shelf support portion 110. From simple geometry, a 90° angle will cause a vertical locking bar which may not properly lock. As such, any angle between 0° and 90° is selected to enable locking bar 118 to lock. The closer angle 120 is to 90°, the less rotation is used to disengage brace 108. Conversely, the closer angle 120 is to 0°, the more rotation is used to disengage brace 108. Tuning angle 120 between 0° and 90° can yield the desired amount of shelf rotation to disengage brace 108 from track 102. In the exemplary embodiment, angle 120 is between about 15° and about 30°. Further, locking bar 118 includes a first end 122 and a second end 124 and is substantially rectangular with rounded ends 122 and 124. In an alternative embodiment, end 122 and/or 124 includes a substantially flat surface. Alternatively, locking bar 118 has any suitable shape that enables support system 100 to function as described herein, such as trapezoidal, parallelogram-shaped, oval, elliptical, and/or polygonal.
Vertical support portion 112 further includes a notch 126 defined proximate a bottom 128 thereof. Notch 126 is configured to enable brace 108 to be supported against an outer surface 130 of track 102. More specifically, a substantially vertical surface 132 of notch 126 is configured to be at least partially in contact with outer surface 130 of track 102 when shelf panel 104 is oriented substantially perpendicular to track 102, as described in more detail herein below.
Track 102 is substantially vertically oriented within storage compartment 12 and is configured to support at least one brace 108. As such, track 102 is configured to support shelf assembly 106 within storage compartment 12. When storage compartment 12 includes a plurality of shelf assemblies 106, track 102 supports a plurality of braces 108. Track 102 is substantially continuous along a height of storage compartment 12; however, track 102 can include a plurality of non-continuous segments along the height of storage compartment 12. In the exemplary embodiment, track 102 includes a first side wall 134 and a second side wall 136 defining a channel 138 therebetween. First side wall 134 and second side wall 136 are connected by a connecting structure 140, such as a wall and/or cross-braces. Channel 138 is configured to receive locking bar 118 therein. When locking bar 118 is positioned within channel 138, brace 108 is vertically moveable along track 102.
A first series 142 of teeth 144 extend from first side wall 134 into channel 138. Teeth 144 are each substantially semi-circular and extend from side wall 134 at a fillet 146. Alternatively, track 102 does not include at least one of the fillets 146, and at least one tooth 144 extends from side wall 134 at an angle. In the exemplary embodiment, each tooth 144 is configured to support first end 122 of locking bar 118 thereon. More specifically, locking bar 118 is configured to be supported at first end 122 on a selected tooth 144a of first series 142 of teeth 144 at a selected height within storage compartment 12 and/or appliance 10.
Further, each tooth 144 of first series 142 of teeth 144 is spaced apart from an adjacent tooth 144 by an indentation 148. As such, track 102 includes a plurality of indentations 148 defined along first side wall 134 between adjacent teeth 144. Each tooth 144 has a first width W1 and each indentation 148 has a second width W2 that is wider than first width W1. In the exemplary embodiment, a ratio of second width W2 to first width W1 is between about 5:1 and about 20:1.
A second series 150 of teeth 152 extends from second side wall 136 into channel 138. Each tooth 152 of second series 150 of teeth 152 is configured substantially similarly to each tooth 144 of first series 142 of teeth 144. Further, each tooth 152 of second series 150 is associated with a corresponding one of the teeth 144 of first series 142 and aligned relative to that tooth 144 to form a set of opposed support teeth, which engage and support locking bar 118 at the height defined by the vertical position of the set of support teeth. Generally, teeth 152 are aligned between adjacent teeth 144 of first series 142. In the exemplary embodiment, each tooth 152 is vertically aligned substantially half-way between its corresponding one of teeth 144 and the next lower one of teeth 144. Alternatively, teeth 152 may have any suitable alignment with respect to teeth 144 that satisfactorily engages and supports locking bar 118 when in the engaged position and provides sufficient clearance for satisfactory disengagement for convenient movement to a different selected height. In the exemplary embodiment, indentation 148 is defined between each set of adjacent teeth 152 and has second width W2. As such, teeth 152 have substantially the same spacing as teeth 144. Alternatively, teeth 152 have a spacing that is different than the spacing of teeth 144.
The spacing of teeth 144 and/or teeth 152 is related to angle 120. More specifically, the spacing of teeth 144 relative to the spacing of teeth 152 sets angle 120 of rotation to disengage brace 108 for vertical motion. The tooth spacing is designed with locking bar angle 120 to set a desired amount of shelf rotation. In one embodiment, the amount of shelf rotation is small enough to ease adjusting the shelf position, but high enough rotation to prevent accidental disengagement of brace 108 from track 102.
In the exemplary embodiment, each tooth 152 of second series 150 is configured to support second end 124 of locking bar 118 thereon. More specifically, locking bar 118 is configured to be supported at second end 124 on a selected tooth 152a of second series 150 at the selected height within storage compartment 12 and/or appliance 10. Selected tooth 144a of first series 142 of teeth 144 and selected tooth 152a of second series 150 of teeth 152 upon which brace 108 is supported by locking bar 118 forms a set of opposing support teeth. A user of support system 100 can select any suitable opposing pair of a first series tooth 144 and a second series tooth 152 as the set of support teeth to achieve the user-selected height for the supported shelf.
More specifically, during use of support system 100, the user tilts a front end 154 of shelf panel 104 upward to rotate locking bar 118 toward a generally vertical orientation within channel 138 so as to disengage locking bar 118 from opposing pairs of support teeth. When shelf assembly 106 is sufficiently oriented, shelf assembly 106 is considered to be in a disengaged position 156 (shown at bottom of
When storage compartment 12 and/or appliance 10 includes a plurality of shelf assemblies 108, a plurality of shelf panels 104 are positioned at different heights within storage compartment 12. As such, each shelf panel 104 is supported on a different tooth 144 of first series 142 of teeth 144 and a different tooth 152 of second series 150 of teeth 152. Accordingly, each brace 108 is supported by a different set of support teeth.
In the exemplary embodiment, substantially trapezoidal teeth 202 each include two sides 204 and a substantially linear outer end 206. Sides 204 extend from side wall 134 and/or 136 at a fillet 208. End 122 and/or 124 (shown in
In the exemplary embodiment, substantially triangular teeth 302 are each shaped as a substantially equilateral triangle. More specifically, each tooth 302 includes two sides 304 that meet at an outer apex 306. Sides 304 each have substantially the same length. Sides 304 extend from side wall 134 and/or 136 at a fillet 308. End 122 and/or 124 (shown in
When track 400 is used with support system 100, first end 122 (shown in
In the exemplary embodiment, substantially trapezoidal teeth 502 each include two sides 504 and a substantially linear outer end 506. Sides 504 extend from side wall 134 or 136 at a fillet 508. End 122 or 124 (shown in
In the exemplary embodiment, substantially triangular teeth 602 are each shaped as a substantially equilateral triangle. More specifically, each tooth 602 includes two sides 604 that meet at an outer apex 606. Sides 604 each have substantially the same length. Sides 604 extend from side wall 134 or 136 at a fillet 608. End 122 or 124 (shown in
In the exemplary embodiment, substantially triangular teeth 702 are each shaped as a substantially right triangle. More specifically, each tooth 702 includes a first side 704 and a second side 706 that meet at an outer apex 708. First side 704 is longer than second side 706. Second side 706 is substantially perpendicular to side wall 134 and/or 136. End 122 or 124 (shown in
Referring to
The embodiments described herein provide a support system for a support assembly that is easier to operate compared to known shelf support systems. More specifically, the above-described embodiments enable a height setting to be easily found and engaged because the tooth width is smaller than the indentation width. As such, the above-described embodiments enable a support assembly to be easily positioned at the height setting, as compared to known hidden shelf support systems that include relatively narrow notches. Further, the support assembly can be substantially horizontally aligned within a storage compartment, and the teeth described herein facilitate maintaining the substantially horizontal position of the support assembly. Moreover, the teeth and indentation locking arrangement enables smooth movement of the support assembly along the track compared to known hidden shelf support systems.
Exemplary embodiments of a support system for use with an appliance are described above in detail. The methods and systems described herein are not limited to the specific embodiments described herein, but rather, components of the systems and/or steps of the methods may be utilized independently and separately from other components and/or steps described herein.
Although specific features of various embodiments of the invention may be shown in some drawings and not in others, this is for convenience only. In accordance with the principles of the invention, any feature of a drawing may be referenced and/or claimed in combination with any feature of any other drawing.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
