U.S. patent application number 13/833463 was filed with the patent office on 2014-09-18 for apparatus, system, and method for storage in a refrigerated appliance.
This patent application is currently assigned to WHIRLPOOL CORPORATION. The applicant listed for this patent is WHIRLPOOL CORPORATION. Invention is credited to JAMES W. KENDALL, MICHAEL C. LAH.
Application Number | 20140265807 13/833463 |
Document ID | / |
Family ID | 51524529 |
Filed Date | 2014-09-18 |
United States Patent
Application |
20140265807 |
Kind Code |
A1 |
KENDALL; JAMES W. ; et
al. |
September 18, 2014 |
APPARATUS, SYSTEM, AND METHOD FOR STORAGE IN A REFRIGERATED
APPLIANCE
Abstract
An apparatus, system, and method for storage in a refrigerated
appliance. One aspect includes glides or slides underneath and
within the bottom perimeter dimensions of any bin or bin carrier
relative to its supporting structure in the refrigerated appliance.
This allows adjacent bins to more efficiently utilize lateral
storage space in the refrigerator. It also promotes hiding of the
glide or slides from view.
Inventors: |
KENDALL; JAMES W.; (MT.
PROSPECT, IL) ; LAH; MICHAEL C.; (BENTON HARBOR,
MI) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
WHIRLPOOL CORPORATION |
Benton Harbor |
MI |
US |
|
|
Assignee: |
WHIRLPOOL CORPORATION
Benton Harbor
MI
|
Family ID: |
51524529 |
Appl. No.: |
13/833463 |
Filed: |
March 15, 2013 |
Current U.S.
Class: |
312/408 |
Current CPC
Class: |
F25D 2500/02 20130101;
F25D 25/021 20130101; A47B 2210/0056 20130101; A47B 88/40
20170101 |
Class at
Publication: |
312/408 |
International
Class: |
F25D 25/02 20060101
F25D025/02 |
Claims
1. A system of supporting and guiding a component that can be moved
along an axis between a home position and a pulled out position
comprising: a. a pull out component having a bottom with opposite
sides, a front, and a rear defining a bottom perimeter, the
opposite sides on opposite sides of the axis, the front and rear
along the axis; b. a base under the pull out component having a
front and a rear along the axis; c. a first guide member attached
to or integrated with the bottom of the pull out component, the
first guide member at or within the perimeter of the bottom of the
pull out component and extended in the direction of the axis; and
d. a second guide member attached to or integrated with the base,
the second guide member cooperating with the first guide member to
guide the pull out component relative to the base along the axis
between the home and pulled out positions.
2. The system of claim 1 wherein the pull out component comprises a
storage component.
3. The system of claim 2 wherein the storage component comprises a
drawer, bin, shelf, or rack, or a carrier of the drawer, bin,
shelf, or rack.
4. The system of claim 3 wherein the base is mounted in a
cabinet.
5. The system of claim 4 wherein the cabinet comprises a
refrigerated cabinet.
6. The system of claim 1 wherein the first guide member comprises
one or more rails elongated along the direction of the axis.
7. The system of claim 1 wherein the second guide member comprises
a complementary rail for each of the one or more rails of the first
guide member.
8. The system of claim 1 further comprising one or more rollers on
one of the bottom of the pull out component and the base and
cooperating with structure on the other of the pull out component
and the base to assist in guiding and controlling movement of the
pull out structure along the axis.
9. The system of claim 1 further comprising biasing member on one
of the bottom of the pull out component and the base, and
cooperating with structure on the other of the pull out component
and the base to allow some deviation from movement along the axis
but biasing the pull out component towards the axis during
movement.
10. The system of claim 1 wherein the base is configured to support
a plurality of said pull out components side-by-side and closely
adjacent to one another on the base.
11. A method of supporting and guiding a component that can be
moved along an axis between a home position and a pulled out
position, the component having a bottom with opposite sides, a
front, and a rear defining a bottom perimeter, comprising: a.
placing a base under the bottom of the component; and b. supporting
the component on the base with cooperating guiding structure on the
component which allows guided movement relative the base along the
axis and which is at or within the perimeter of the bottom of the
component.
12. The method of claim 11 wherein the component comprises a
drawer, bin, shelf, or rack in a cabinet.
13. The method of claim 11 wherein the further comprising a
plurality of said components on the base.
14. The method of claim 11 further comprising allowing a range of
lateral movement of the component relative the axis during movement
but urging the component towards the axis.
15. The method of claim 11 wherein the guiding structure comprises
rails, wheels, rollers, surfaces, bosses, or channels, or
combinations of the same.
16. A refrigerated appliance comprising: a. a cabinet; b. a base
having a top, a bottom, a front, a back, and opposite sides mounted
at least substantially horizontally inside the cabinet; c. one or
more slide out components each having a bottom with a front, a
rear, and opposite sides defining a perimeter of the bottom, and
each supported on the base; and d. a slide assembly between each
slide out component and the base, the slide assembly allowing
slideable movement of a slide component relative the base, the
slide assembly comprising cooperating parts on the bottom of the
slide out component and on the top of the base, the cooperating
part on the slide component contained at or within the perimeter of
the bottom of the slide out component.
17. The refrigerated appliance of claim 16 wherein the slide out
component comprises a drawer, bin, shelf, or rack, or a carrier of
the drawer, bin, shelf, or rack.
18. The refrigerated appliance of claim 16 wherein the cooperating
parts comprise rails, wheels, rollers, surfaces, bosses, or
channels, or combinations of the same.
19. The refrigerated appliance of claim 16 further comprising a
lateral tolerance biasing component between the slide out component
and the base.
20. The refrigerated appliance of claim 16 further comprising a low
coefficient of friction surface between the cooperating parts of
the slide assembly.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to refrigerated appliances
and, in particular, storage of items in such appliances.
[0003] 2. Problems in the Art
[0004] As advancements have occurred with refrigeration appliances,
such as materials, temperature control, and space configuration,
other advances have occurred regarding the variety and type of
storage capabilities inside the appliance. Drawers, crispers, glass
and wire shelves, storage bins, and plastic molded shelves are well
known. But advancements in their makeup and configuration, and the
combinations of such components, continue to proceed.
[0005] One issue with shelves, drawers, or bins that can be pulled
out is the structure and components to allow them to be moved in
that manner. Another issue is competition for space inside the
appliance. A further factor is the cost of materials,
manufacturing, and assembly.
[0006] These factors, as well as other considerations faced by the
designer, can be competing and sometimes even antagonistic. For
example, repeatability and durability of the structure/components
that allows a drawer to be pulled out and pushed in over many years
is important. This tends to drive the designer towards robust and
thus perhaps more complex and costly components. It also tends to
use up more space, which is to the detriment of storage or other
usable space inside the appliance.
[0007] Another example involves function. For example, a
sufficiently robust slide or glide system for a relatively large
crisper bin may benefit from components and cooperation of elements
to not only guide opening and closing but control or provide
assistance to such movement between opposite end positions. Again,
competing factors of complexity, cost, robustness and durability
come into play.
[0008] Another issue in slideable storage space concerns the user
experience relative to the sliding. For example, it can be
beneficial for a crisper drawer to slide or glide smoothly and
accurately between home (fully pushed into the cabinet) and fully
extended, and without significant side-to-side play. But other
dynamics of movement may be important to the user. Examples are:
[0009] a. small force and/or small variation in force required to
move the slideable storage; [0010] b. relatively small displacement
from intended path of travel; [0011] c. end positions that can be
felt tactilely (the user feels when the drawer is nearing and then
at fully home or extended positions); [0012] d. minimal noise or
sound when moving (e.g. clicking, scraping, or hissing); [0013] e.
no unreasonable sag (e.g. between empty and full bin).
[0014] These and other user experiences in sliding/gliding storage
components in a refrigerated appliance must be considered which,
again, can involve competing factors. They can include, but are not
limited to, cost, aesthetics, ease of removability and
re-installation into the appliance (e.g. for cleaning, repair,
configuration, etc.), weight, and space consumption.
[0015] Consumers of appliances can also be concerned with and their
buying decisions based on pricing and aesthetics. These can also be
antagonistic. Highly developed form with desired function(s) can
increase cost. A still further complication is that manufacturers
can benefit from presenting the type of appliance across a range of
price points. Some consumers want higher end, and usually higher
price, brands; some want the opposite. Thus, the appliance designer
also has to consider the ability to add attractive forms and
innovative functions across price points. Sometimes it is not
possible to add some features and/or aesthetics to lower end price
points or, if possible to add, can represent significant challenges
to the designer.
[0016] Still further, some appliance consumers demand flexibility
in customizing an appliance, including its storage configurations.
The consumer may have preferences regarding the placement and
amount of different types of storage (e.g. bins versus shelves or
racks) and their size and purpose. Present refrigerated appliances
typically have refrigerated compartments and freezer compartments.
Examples of some of the types of storage are shelves and racks. But
fully or partially enclosed storage can include such things as
crispers, pantry drawers, freezer drawers, meat bins, vegetable
bins, to name a few. Many times these storage types need to be able
to be pulled out at least partially from the cabinet to allow good
access to their interiors.
[0017] There is a continuing need in the art for addressing these
problems and issues.
SUMMARY OF THE INVENTION
[0018] It is therefore a principal object, feature, aspect or
advantage of the present invention to address and improve over
problems and deficiencies in the state of the art.
[0019] Additional objects, aspects, features and advantages of the
invention relate to an apparatus, system, or method for storage in
a refrigerated appliance which: [0020] a. balances competing
interests for storage and functionality in a refrigerated
appliance; [0021] b. can be advantageously utilized to add useful
storage space; [0022] c. can provide flexibility in cost and
function of slideable storage relative to design demands; [0023] d.
can be advantageously used by the designer for improved aesthetics;
[0024] e. can be advantageously used by the designer for highly
flexible planning of usable space, as well as desirable functions;
[0025] f. is compatible with control and guidance features for
slideable components and functions demanded by consumers.
[0026] These and other objects, features, aspects and advantages of
the invention will become apparent with reference to the
accompanying specification and claims.
[0027] In one aspect of the invention a system of supporting and
embodying a storage component in a refrigerated appliance between a
home or pushed-in position and an extended or pulled-out position
includes a base, a pull-out component or carriage mounted on top of
the base, the pull-out component having a bottom with opposite
sides, a front and a rear defining a bottom perimeter, a first
guide member attached to or integrated with the bottom of the
pull-out component and within the opposite lateral side edges of
the bottom of the pull-out component, and a second guide member
attached or integrated with the base, the second guide member
cooperating with the first guide member to guide the pull-out
component relative to the base along an axis between the home and
pulled-out positions. An example is a single glide or slide rail on
the base and a single complementary or cooperating glide or slide
rail on the pull-out component provide the primary glide or slide
for the pull-out component or carrier. The carrier can be a
receiver that removably receives a bin or other storage component.
The bin would move with the carrier. Alternatively, the carrier can
be eliminated and the pull-out member carrier can be the bin or
other storage component itself.
[0028] In another aspect of the invention, a method of supporting
and guiding a storage component in a refrigerated appliance
comprises providing cooperating sliding or gliding surfaces between
the bottom of the storage or pull-out component and a base
underneath it where the cooperating components are underneath and
within the side boundaries of the pull-out component.
[0029] In another aspect of the invention, instead of a single rail
glide or slide configuration, a pair of rails on the base can
cooperate with a complementary pair of rails on the carrier or bin,
the pair of rails being underneath and within the opposite sides of
the bottom of the carrier or bin.
[0030] In another aspect of the invention, additional guiding and
sliding assistance can be provided. One example is one or more
wheels or rollers positioned within the opposite side edges of
either the carrier (or bin if no carrier) or the base and
cooperating with the glides or slides on the other of the carrier
(or bin) and the base. Further examples of the types of movement
assistance can include one or more of the following: automatically
pull the slideable storage component closed (or fully open) as it
approaches fully closed (or fully opened) position(s); control of
motion; control of lateral and vertical movement; and control of
noise during movement. The designer can build in structure or
components to address these things. The designer can balance
competing factors, including cost and aesthetics.
[0031] In another aspect of the invention, a system for pull-out
storage units in a refrigerated appliance is facilitated by fully
under-bin glides. The glides or slides can be designed both for
fixed-in-place configurations or for
adjustable/customizable/changeable configurations inside the
appliance.
[0032] Another aspect of the invention includes a system for
pull-out storage components in a refrigerated appliance which
includes under-bin slides or glides and associated components to
guide and assist sliding and gliding within a range of tolerance
relative an intended direction of movement, control resistance or
provide assistance to manual pulling or pushing, and/or help the
user find end-of-travel positions.
[0033] A further aspect of the invention is to provide a system for
under-bin slides or glides across the width of one level of a
refrigerated appliance whereby the size or type of storage
component can be verified across that width. The system can also be
implemented at plural levels in the appliance.
BRIEF DESCRIPTION OF THE DRAWINGS
[0034] General Concept of Under Bin Glides
[0035] FIG. 1A is a perspective view of the interior of a
refrigerated appliance showing several under-bin glide storage bins
according to one exemplary embodiment of the present invention.
[0036] FIG. 1B is an enlarged view of a portion of FIG. 1A,
particularly focused on one set of under bin glide storage bins
across one horizontal plane of the appliance.
[0037] FIG. 1C is an isolated view of the storage components apart
from the refrigerated appliance cabinet.
[0038] FIG. 1D is an isolated perspective view of the storage
components of FIG. 1B, showing two single-wide bins and one
double-wide bin along the same horizontal level.
[0039] FIG. 1E is a similar view to FIG. 1D but shows an
alternative arrangement of storage components (four single-wide
bins) that could be utilized with the same under-bin glide system
of FIG. 1D.
[0040] FIG. 1F is a still further example of an alternative storage
bin configuration (one single-wide and one triple-wide bin) using
the same under-bin glide system of FIGS. 1B and 1E.
[0041] FIG. 1G is a schematic illustrating plural alternative
configurations of different bins for the same under-bin glide
system of FIG. 1B.
[0042] One Rail Example
[0043] FIG. 2A is a perspective view of an exemplary embodiment
according to the present invention showing two opaque storage bins
on an under-bin glide system and a shelf above those opaque
bins.
[0044] FIG. 2B is similar to FIG. 2A showing the same under-bin
glide system (without the shelf above) but showing how one of the
bins slides on an under-bin glide system.
[0045] FIG. 2C is an isolated view of the under-bin glide system
according to this exemplary embodiment, namely showing a base with
independently glideable bin carriers (three of them) but without
any bins placed on the bin carriers.
[0046] FIG. 2D is an isolated view of the base of FIG. 2C, showing
under-bin glide components for the left side of the base, a smaller
middle bin carrier in operating position in the middle of the base
and just the base for the right side. FIG. 2D also shows an
optional tolerance take-up system and anti-tip system for the
right-side (it could be used for the middle and left side too) that
could be used with the carrier to control its movement.
[0047] FIG. 2E is an enlarged view of the right side of FIG. 2D
showing a single rail under-bin glide system including a rail
mounted on the base and also a complementary rail that would be
mounted to the bottom of a carrier plate (not shown) and which
would slide in the base rail.
[0048] FIG. 2F is an exploded view of the right-most carrier and
bin of FIG. 2A (the two left-most carriers are shown
assembled).
[0049] FIG. 2G is similar to FIG. 2F but shows the base single rail
and tolerance/anti-tip systems assembled to the base.
[0050] FIG. 2H is a bottom perspective view of right-most bin
carrier of FIG. 2F showing tolerance take-up structure and end
stops.
[0051] FIG. 2I is a sectional view of the assembled bin, carrier,
and base of the right-most bin of FIG. 2F.
[0052] FIG. 2J is a still further enlarged close up sectional of
the complementary under bin glide single rail components of the
base and carrier of FIG. 2I.
[0053] FIG. 2K is a top plan diagrammatic view illustrating how the
tolerance take-up system associated with the horizontal wheels on
pivoting arms of the base cooperates with the oppositely bowed thin
walls to control and influence speed and resistance to movement to
and from opposite ends-of-travel.
[0054] FIG. 2L is similar to FIG. 2K but shows the carrier
partially pulled-out to illustrate operation of the tolerance
take-up system.
[0055] Two Rail Example
[0056] FIG. 3A is another alternative exemplary embodiment (two
rail version) according to the present invention showing just one
base, bin carrier and storage bin.
[0057] FIG. 3B is an isolated view of the bin carrier and base of
FIG. 3A.
[0058] FIG. 3C is an isolated view of the base of FIG. 3B including
a home-finding device.
[0059] FIG. 3D is a bottom view of the bin carrier of FIG. 3B
including guidance and home-finding structure.
[0060] FIG. 3E is an exploded view of FIG. 3A.
[0061] FIG. 3F is an enlarged sectional view of FIG. 3A showing how
the two rail under-bin glide example works.
[0062] FIG. 3G is a still further enlarged isolated view of the
complementary glide rails of base and bin carrier on the right side
only.
[0063] Dual Rail, Low Friction Surface(s) Example
[0064] FIG. 4A is another alternative exemplary embodiment (two
rail, low friction) according to the present invention in
perspective view with a base, three side-by-side bin carriers, and
bins set into the outer two bin carriers only. A glass shelf that
could be independently mounted in the refrigerated appliance and
act essentially as a cover for the bins is also shown.
[0065] FIG. 4B is the combination of FIG. 4A without the optional
and independent glass shelf.
[0066] FIG. 4C is a perspective view of the bin carriers and base
of FIG. 4B.
[0067] FIG. 4D is a perspective view of the base of FIG. 4B showing
its under-bin glides just with the right-most bin.
[0068] FIG. 4E is an isolated view of a tolerance control component
for assisting in guided movement of the bin.
[0069] FIG. 4F is an isolated perspective view of the two rail
under-bin glides in partially extended position.
[0070] FIG. 4G is an exploded view of the right-most bin, bin
carrier, and base of FIG. 4A.
[0071] FIG. 4H is an enlarged sectional view of the assembled bin,
carrier, and base of FIG. 4G.
[0072] FIG. 4I is a still further enlarged isolated view of the
right side glide combination of base and carrier of FIG. 4H.
[0073] Horizontal Roller Example
[0074] FIG. 5A is a perspective view of a still further alternative
exemplary embodiment (using horizontal rollers and rails) according
to the present invention.
[0075] FIG. 5B is similar to FIG. 5A but with the over-shelf
removed.
[0076] FIG. 5C is similar to FIG. 5B but shows one set of under-bin
glide or slide components (horizontal wheel pairs relative to
tracks or rails on carrier bottom and base top) for the right-most
bin of FIG. 5A.
[0077] FIG. 5D is an exploded view of the right-most bin, carrier
and base of FIG. 5A.
[0078] FIG. 5E is a bottom plan view of the carrier of FIG. 5D,
illustrating horizontal wheel set that cooperate with rails on the
base shown in FIG. 5D, as well as rails that cooperate with
horizontal wheels on the base shown in FIG. 5D.
[0079] FIG. 5F is a sectional view of the assembled bin, carrier,
and base of FIG. 5D.
[0080] FIG. 5G is a top plan view diagrammatical depiction of how
the different horizontal wheel pairs cooperate with rail pairs
between the carrier and the base, showing the carrier in the fully
closed or pushed in position.
[0081] FIG. 5H is similar to FIG. 5G but shows the carrier pulled
out towards fully extended position.
[0082] Tolerance Take-Up Wheel Example
[0083] FIG. 6A is a top perspective view of a tolerance take-up
wheel of the type that could be used with the embodiment of FIGS.
5A-5E or other embodiments.
[0084] FIG. 6B is an enlarged view of the wheel of FIG. 6A.
[0085] FIG. 6C is a side elevation of FIG. 6B
[0086] FIG. 6D is a further enlarged isolated bottom perspective
view of FIG. 6A.
[0087] Injection-Molded Shelf Under Bin Glide Example
[0088] FIG. 7A is a still further exemplary embodiment (injection
molded shelves with single track under bin glide) according to the
present invention showing two spaced apart injection molded shelves
that can be mounted in a refrigerated appliance and different bins
that could be utilized with under-bin glides.
[0089] FIG. 7B is a perspective view illustrating three under-bin
glides (without the bins) for the two smaller bins shown under the
top shelf in FIG. 7A.
[0090] FIG. 7C is similar to FIG. 7B but includes the bins and
shows them in a partially pulled-out position.
[0091] FIG. 7D is a front elevation view of FIG. 7A.
[0092] FIG. 7E is a greatly enlarged section view of one under-bin
glide of FIG. 7C.
[0093] FIG. 7F is a reduced-in-scale front elevation illustrating
how the under-bin glide shelves of FIG. 7A can fit into a
refrigerated appliance cabinet, and also shows other types of
storage bins.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
Overview
[0094] For a better understanding of the invention, several example
forms the invention can take will now be described in detail. It is
to be understood these are examples only and neither inclusive nor
exclusive of the different forms and configurations the invention
can take.
[0095] These embodiments will be described in the context of a
consumer refrigeration appliance, e.g., refrigerator,
refrigerator/freezer, or freezer.
[0096] Refrigerator appliance 10 has a thermally insulated cabinet
12. See FIG. 1A. The cabinet includes an interior defined by liner
opposite side walls 14, 16 and top and bottom walls 18, 20 for a
particular compartment (cold food, freezer, or other) of the
refrigerator appliance 10.
[0097] As can be seen in FIG. 1A (the refrigeration appliance outer
door is removed for clarity) several different storage components
are in place in cabinet 12. Examples are vertically moveable
shelves 26 (moveable on vertical rails 24 mounted to the cabinet
back wall 22 by any of a number of structures and methods such as
are known in the art).
[0098] FIG. 1A also shows a bin assembly 30 comprising a horizontal
level of side-by-side storage bins 36. As can be seen, storage bins
are basically closely adjacent to one another and span essentially
the entire width of the interior cabinet 12 between liner walls 14,
16. There are no substantial spaces between bins. This is
facilitated by what will be called under-bin glides.
[0099] As can be seen by the figures, one benefit of the under-bin
glides is that they promote an efficient use of storage space. A
base 32 is underneath the plural bins 36. That base 32 can be
essentially a plate of relative low profile or height attached to
opposite liner wall sides 14 and 16. It presents basically a
horizontal surface. In this exemplary embodiment what will be
called bin carriers 34 are mounted on baseplate 32. As seen better
in FIG. 1C, the bin carriers are essentially plates or trays that
are slidable relative to base 32 so that each carrier 34 can be
independently manually pulled forward or pushed back into the home
position in cabinet 12 (the positions shown in FIG. 2C). Carriers
32 are also relatively low profile or small height components that
do not take up a lot of vertical space in cabinet 12.
[0100] In this embodiment bins 36 are set on top of at least one
carrier 34 in a manner that is mateably received by the one or more
carriers and when bin 36 is pulled forward it pulls the one or more
carriers 34 on which it sits. By this it is meant that a single bin
36 can be set on top of a single slideable carrier 34 and be
independently pulled out or extended from home or fully retracted
position in cabinet 12. But further, a single bin 36 that is
laterally wider than a single carrier 34 can be configured to sit
on top of plural carriers 34 and be independently pulled out and
pushed in with those plural carriers. Still further, of course,
plural bins 36 each narrower than a single carrier could be placed
on top of that single carrier and both could be pulled out in
tandem facilitated by the concurrent sliding of the single
carrier.
[0101] Importantly, as diagrammatically illustrated in FIG. 1G,
this would allow high flexibility to the user in configuring the
storage in appliance 10. If the carriers 34 are all of the same
width and mounted across one horizontal base 32, there could be
one-to-one correspondence of each bin 36 to a carrier 34. The bins
could be the same or similar width as the carriers--presenting a
row of same-width bins across cabinet 12. Or there could be a wider
bin that spans and seats into two carriers. Essentially it would be
a "double-wide" bin 36B. Still further, if more than two carriers,
there could be a still wider bin 36C ("triple-wide" if three
carriers, "four-wide" if four carriers, and so on). In FIG. 1G,
single wide bins 36A can be used on one cabinet level. Wider bins
can be used. Or different width bins can be intermixed. FIG. 1G
even can allow (although not independently slideable) two smaller
(1/2 wide bins 38) per carrier.
[0102] As can be seen in these Figures, a single cabinet-wide base
32 could support multiple carriers 34. A slide or glide system
would be fully underneath each carrier. The slide or glide systems
would be essentially hidden, especially when the carriers are in
fully pushed back or home positions. And the slide or glide systems
are low vertical profile. The base, slide or glide system and
carriers do not take up much vertical space. A storage member or
component (here a bin 36) can be seated onto one or more carriers
34. Thus, the bin 36 is slideable/glideable between home and
extended positions by a user either pulling on the bin 36 or the
carrier 34. In most cases it will be by pulling on the bin. There
can be a handle on the bin to help facilitate this.
[0103] As shown in FIGS. 1-F, multiple levels of under-bin glide
systems can be added to a single cabinet 12. The low vertical
profile of multiple levels is indicated. There can be not only the
appearance of no wasted space laterally across each level, but also
by appropriate spacing each base 12 vertically in cabinet 12,
plural rows of bins give the appearance of efficient use of
vertical space also.
[0104] On the other hand, the carriers could be of different
widths. As indicated in FIGS. 1A-F, there could be one-to-one
correspondence of bins to carriers even if some of the bins are of
different widths. But even in that situation, a different width
bins combinations could be supported by the different sized
carriers so long as the total width of all bins fits across the
space between liner walls 14 and 16.
[0105] The precise configuration of carrier width to bins and bin
width can vary according to design. But it allows a number of
possibilities of customized or changing the storage regimen in a
particular appliance 10.
[0106] In this manner, the entire bin assembly 30 presents a very
efficient use of space laterally across the storage capacity of
cabinet 12. Unlike conventional refrigerator bins, many of them
hang then from side rails with rollers that extend outside the
perimeter of the bin. This prevents the bins sidewalls from being
closely adjacent and thus gives up some storage space in that layer
of bin.
[0107] Of course, by putting base 32 and carriers 34 underneath
bins 36, some vertical space in the cabinet is taken up. However,
by selection of materials with sufficient robustness and structural
strength, base 32 can be quite thin as can the carrier 34. One
example is use of the approved refrigerator grade plastics that can
be produced to support the weight of carriers 34 and bins 36,
including when bins 36 are filled within normal ranges for the
types of products they would store, and probably some additional
margin of reasonable error. In short, the design places the
interface between the base and the carrier which guides and
promotes a low coefficient of friction movement between base and
carrier in a relatively small vertical height to allow the bins to
be closely adjacent across that elevation.
[0108] As indicated in FIGS. 1A through F, a glass or other
material of shelf 26 could be adjustably positioned just above bins
36 and effectively form at least two functions; one being a storage
shelf, the other being a de facto cover for the bins.
[0109] As can be further appreciated by FIGS. 1A through F, an
advantage of using bin carriers instead of mounting bins directing
on the base is that different combinations of bins can be arranged
in refrigeration device 10. Consider for the examples in FIGS.
1A-F. Assume there are four bin carriers 34, each of equal width,
operatively mounted across one horizontal level of a base 32. At
least one glides between each carrier and base are within the
outside perimeter sides of each carrier 34.
[0110] As shown in FIGS. 1C and 1E, four what will be called
single-wide bins 36 could be placed side-by-side on that horizontal
elevation in the cabinet 12. As is indicated in FIG. 1C, each bin
carrier 34 could have essentially a lip or raised perimeter wall 50
into which the corresponding sized bin 36 could be matingly placed.
Then, pulling the bin forward would cause it to glide or slide on
carrier 34 forward to gain that mechanical advantage of a
slider/glide mechanism between carrier 34 and base 32. Each of the
four bins 36 could be independently pulled forward and pushed back.
Note how the relatively thin base and carriers, essentially hiding
the glide mechanisms or systems, provide a very clean aesthetic and
the bins are essentially directly adjacent to one another using the
space efficiently. Note how the aesthetics fits well with
relatively thin glass shelving 26 in cabinet 12.
[0111] Compare the above to FIGS. 1A, 1B, and 1D. Assuming still
four carriers of equal width across the cabinet 12, here two single
wide bins 36 are each mounted on one carrier 34 (the two left-most
bins). But a double-wide bin 36 is mounted on the two right-most
carriers. In this configuration two smaller, independently
slideable bins co-exist with one bigger bin.
[0112] FIG. 1F shows a still further possibility. Instead of four
bins 36, there could be one single-wide bin 36 like in FIG. 1E (the
left-most) spanning one carrier 34, and one triple wide bin 36 (the
right-most); which would span three bin carriers 34. The underside
of double-wide, triple-wide, or wider bins 36B could contain an
indent, slot, or other structure to receive the lip edges 50 of
adjacent carriers 34 that it spans so that it can be stable and
mated into those plural carriers 34. Forward manual pulling of a
double- or triple-wide bin would cause it to slide or glide forward
on two or three carriers 34, respectively, relative to base 32.
[0113] FIG. 1G gives further schematic illustration of the variety
of different configurations possible. This provides high
flexibility regarding consumers' desires for storage capabilities
and again is an efficient use of space because in each
configuration, at least the side-by-side storage space is
effectively used by allowing sidewalls of the bins to be closely
adjacent.
[0114] Therefore, this under-bin slide system takes advantage of at
least the following things.
[0115] A relatively thin base is supported in cabinet 12 at a
vertical elevation. A set of relatively thin bin carriers is
mounted on top of the base. A slide or glide system is basically
hidden between the base and each carrier to allow independent
sliding of each carrier 34 relative to base 32. The slide(s) or
glide(s) are positioned inside the opposite sides of each carrier
so that appropriately-sized bins 36 placed on the carriers can have
their sidewalls essentially adjacent for efficient space use for
storage.
[0116] Additionally, the under-bin glides or slides, even with the
added layers of carriers and base, still promote efficient use of
vertical interior space for cabinet 12.
[0117] Further, optionally a shelf 26 can both support another
vertical layer of products or devices and function as a cover for
the slideable bins. Of course, the bins could have a different or
individual and more integrated covers.
[0118] As indicated in the figures, the combination also provides a
clean, aesthetically-pleasing look. There is an appearance of more
storage space. Thus the invention promotes both lateral and
vertical effective and efficient use of space in refrigeration
device 10.
[0119] The following are several specific examples of a few of the
forms the invention can take. As will be seen, each of the
embodiments can be implemented in the under-bin context which
promotes bins which can be positioned essentially adjacent across
all or part of a lateral horizontal level in the cabinet of a
refrigerated appliance with the glides or slides that allow the bin
to be pulled out from the cabinet to be essentially hidden from
view. The under bin slides or glides are low profile in the sense
the whole assembly (base, slide(s)/glide(s), and bin (or carrier
and bin) is an efficient use of vertical space in the cabinet also.
The designer can select a type of under bin glide or slide for all
bins in the cabinet, or different glide(s)/slide(s) for different
bins. The bins can be uniform in size, or differ.
Single Center Glide Exemplary Embodiment
[0120] With reference to FIGS. 2A-L, a specific under-bin glide
assembly 30 is shown. It provides the same or similar features as
discussed regarding FIGS. 1A-1G. A plurality of bins 36 each sit on
one or more bin carriers 34 that each have a single slide or glide
underneath their perimeter relative to base 32. This allows each
bin 36 to have sidewalls essentially adjacent any adjacent bin or
adjacent a sidewall 14 or 16 of the refrigerator liner or cabinet
12, and at least substantially hide the slide or glide from direct
view.
[0121] FIG. 2A shows a shelf 26 could be independently mounted and
supported slightly above the top-most level of any bin 36 on base
12 to provide a cover to any bin 36 below it. Bins can be any of a
variety of configurations. Examples would be plastic, glass, metal,
or other materials. They could be opaque, clear, translucent, or a
combination (for example, clear bins would allow the user to better
see the contents of the bin and even perhaps other parts of the
cabinet). They could present different aesthetics and different
functionalities (crispers, fruit, meat, etc.).
[0122] Assembly 30 in FIGS. 2A-L differs from that in FIGS. 1A-G in
that the two outside bin carriers 32 are wider than a third middle
thinner bin carrier 34. This allows use of either just two bins of
the size of FIG. 2A or B without a middle bin, and still provides a
pleasing look because the middle bin slides or glides are hidden by
the bin carrier. The middle carrier 34 can simply not be used, or
it could be used as a slideable shelf to support objects in its
upper surface.
[0123] Alternatively, a narrower middle bin 36 (not shown) could be
used on middle carrier 34.
[0124] But further, similar to FIGS. 1A-G, different width bins 36
could be used across assembly 30 of FIGS. 2A-L. For example, a
single wider bin 36, like shown in FIGS. 2A and 2B, could be placed
on the left-most carrier 34. A width and a half second bin 36 could
be placed on and span middle and right-most carrier 34.
Alternatively, a two and a half wide single bin 36 could be placed
on and span all three carriers 34. It is also possible to place two
half-width bins (the width of middle carrier 34 in FIGS. 2A-L) on a
single full width carrier 34 (the left and right carriers 34 in
FIGS. 2A-L). This could allow five half width bins to be placed on
carriers 34. Other combinations of course are possible.
[0125] FIG. 2C shows base 32 and three carriers 34 without any bins
on them. Each carrier has a lip 38 that can retain the bin. It can
restrain the back side of a bin. The lip goes around a substantial
portion of each carrier 32, including the front. A facade 39 could
be added to the front for additional finishing affect. As can be
seen, lip 38 can vanish near the front of each carrier 34. This can
allow for bins wider than a single carrier to be configured on
their bottom surface to mateably be received in multiple carriers
as previously described. Additionally note in FIG. 2C that there
can be some space between carriers 34. The bins can have bottoms
that fit snuggly inside the lip(s) 38 of one or more carriers 34
but expand laterally and depth-wise outside the perimeter
dimensions of the carrier(s) to essentially almost abut one another
when in mounted position. But the bins do not have to have that
characteristic. They could be of a variety of sizes and even quite
a bit smaller than the perimeter(s) of the carriers.
[0126] FIGS. 2D-2L illustrate one example of an under-bin glide
system that can be used between base 32 and each carrier 34. In
this example, a metal or metalized base rail 50 has a front end 52
at or near the front edge of base 32 and a rear end 54 near the
back edge of base 32. Rail 50 has an essentially elongated flat bar
for a backbone with opposite lateral sides 56 and 58 that are
essentially two facing C-channels. Rail 50 would be secured to the
top surface 40 of base 32 by any of a number of means known to
those skilled within the art. This could include screws, bolts,
adhesives, and other methods of securement.
[0127] The other part of the single center glide of FIGS. 2A-L is
carrier rail 60. It is a metal or metalized elongated piece having
a similar length and width to base rail 50. Its side edges 66 and
68 matingly fit within the C-channels at 56 and 58 of rail 50 as
shown in FIGS. 2E, 2I, and 2J. It can have a slightly raised center
section 69 such that when rail 60 is slidably inserted in rail 50,
the sidewalls of raised section 69 help guide rail 60 as it slides
relative to rail 50. The sidewalls of section 69 are just slightly
narrower than facing free-edges of C-channels 56 and 58. Rail 60 is
secured to the bottom of carrier 34 by any of a number of
methods.
[0128] The material make-up of rails 50 and 60 can vary. One
possible combination would be to use dissimilar materials which
have a combined effect of reducing the coefficient of friction
between them. Another example would be surface finishes on one or
more of rails 50 and 60 which do the same. A benefit of the
combination is that a single rail combination at or near the center
of carrier 34 is used to support and guide slideable movement of
the corresponding carrier 34.
[0129] An example of a coating to reduce friction could be a PTFE
coating or paint. Others are possible. Also, the designer could
demand close tolerances in manufacturing of the cooperating halves
of the single rail to promote smaller resistance against relative
movement. But, on the other hand, the designer could accept greater
tolerances to reduce cost and complexity, if it would adequately
function for a particular appliance or bin in an appliance. In any
event, the single rail system can essentially be two relatively low
profile metal pieces. In one example in a refrigerator the single
rail can be only 1/2 inch wide. Other widths and dimensions are, of
course, possible. This does not take up much room under the carrier
or bin. It would essentially be hidden from view from many viewing
angles. It would allow bin width that essentially could go right up
to an adjacent bin, wall, or other structure. This gives not only a
clean look and perception of greater storage capacity (and less
wasted space), but can give actual greater lateral storage
space.
[0130] FIGS. 2D-L also illustrate another optional feature of
assembly 30. What will be called the tolerance take up wheels 72
can be rotatably mounted at axes 74 on distal ends of respective
curved arms 76. Arms 76 pivot on axes 78. As schematically
illustrated, a tension spring 86 between the distal ends of arms 76
(e.g. spring 86 could be placed along the bottom of base 12 and
connect to arms 76 through apertures in base 12 at those distal
ends. Spring 86 would resist horizontal separation of wheels 72.
Spring 86 can be of any of a number of forms and specifications as
needed.
[0131] The underside of bin carrier 34 has structure that would be
followed by wheels 72 when carrier 34 is slid relative to base 32.
One example is shown at FIG. 2H. Spaced apart and oppositely
outwardly bowed rails or walls 93 are formed or positioned along
the bottom of carrier 34. Front portions 95 (near carrier front
edge 92) and rear portions 97 (near carrier rear edge 94) are
closer together than the middle portion. End stops 99 can also be
formed or positioned near the back underside of carrier 34. The
bowed middles of guides 93 are closer to opposite lateral sides 96
and 98, respectively, of carrier 32 than ends 95 and 97 of guides
93.
[0132] As illustrated in FIGS. 2K and 2L, when carrier 34 is in a
home or fully pushed-back position relative to base 12 (FIG. 2K),
wheels 72 try to push carrier even further back. This helps and
biases carrier 34 to its home position. Even if the user quits
pushing prior to carrier reaching home, wheels 72 try to converge
and exert forces on ends 95 of rails 73 to "squirt" and then hold
carrier 34 to home position. The user would feel this automatic
force and it would help the user and the carrier to "find" home
position.
[0133] As shown in FIG. 2L, if a user manually pulls carrier 34 at
or near front edge 92 (or pulls a bin 36 on carrier 34) out from
home by overcoming the home-biasing force of wheels 72 and spring
86, wheels 72 would be forced by rails 93 to spread apart further.
This would generate additional converging forces and thus help
guide movement of carrier as its slides on single glide 50/60. The
user would tactilely feel this pinching action, but it could help
control speed and smoothness of sliding. If carrier is pulled far
enough out that wheels 72 reach rear converging portions 97 of
rails 93, a similar "squirting" force would act to push carrier 34
to its fully extended position (similar to finding home, as
described above). The user would tactilely feel the assistance to
find fully extended position. But it would be in a smooth and
controlled way. End stops 99 could mechanically determine the fully
out or fully extended position relative to some aligned and
appropriately positioned structure extending from base 12.
[0134] The corresponding structure underneath bin carrier 34 (see
FIG. 2H) is non-linear. Other shapes and configurations are
possible to create different effects. As can be appreciated, this
combination can tend to guide slideable movement of bin carrier 34
but also produce what is called a soft close and open functions.
The ridges 93 underneath bin carrier 34 converge at opposite ends.
Thus, when bin carrier 34 reaches towards its opposite sliding
extremes, the wheels 72 are drawn by tension spring 86 towards each
other to promote automatic movement of the bin to either extreme
position. In other words, the manual movement of the bin away from
an extreme position has to overcome that combination of ridges 93
and tension the wheels 72 but when pulled towards its opposite
extreme position, the tension of the wheels 72 actually help move
the bin to that opposite extreme position in a controlled ("soft")
manner. By "soft close" it means moving it back to its original
home position; by "soft open" moving it all the way out to its
fully extended position. As can be appreciated, just one of "soft
open" or "soft close" could be used instead of both.
[0135] Another optional feature shown in the figures are stability
wheels 80. An axle 81 mounted along the front edge of base 32 can
rotatably retain wheels 80. Their elevation and rotation help
smooth the gliding movement of carrier 34 and any bin 36 on it, and
also resists tipping of the carrier 34 and thus the bin 36.
[0136] A similar single rail under-bin glide system and,
optionally, the soft open and/or close and stability subsystems can
also be mounted on base 32 for each carrier 34. Only one is shown
in the drawings for simplicity. Thus each carrier 34 has its own
single rail under-bin glide system.
[0137] As can be appreciated, the specific nature and
characteristics of the "soft close" or "soft open" can vary
according to design or need. Some of the rules or principles the
designer could contemplate include but are not limited to the
following:
[0138] Slope (draw) up to peak force. The shorter the time to peak
(e.g. where wheels 72 are pushed the farthest apart), the better
for many situations. While this varies by technology (e.g. plastic
on plastic, metal on metal, wheel-based, rails, etc.), all of these
have optimal or beneficial solutions to shorten the time/distance
to peak. Generally, the lower the amplitude (pounds of force) the
smoother the draw (displacement.times.pounds of force).
[0139] Peak force (pounds of force). It is frequently beneficial to
have peak force very short. The amount of force felt after peak
many times should decay quickly. In some situations the decay would
beneficially be almost instantaneous. Additionally, one design
would have no extended amount of force after peak to achieve a
"sticky" feeling.
[0140] Slope (decay). Slope refers to change in elevation (y=mx+b).
One design rule can be for slope to be instant or almost instant,
and the transition into the residual (sliding/rolling) clean. This
is a time/distance based metric and can be developed and selected
by the designer according to desire or need.
[0141] Residual (travel). The smaller the force deltas, the better
the perception of smoothness by the user in many situations.
Minimal force spikes indicate smooth movement along the
surface.
[0142] Removal/replacement. If and when a component becomes free
from its fixed position, one design calls for it being easily
replaced into the original position. This can be a time-based
metric developed and selected by the designer according to desire
or need.
[0143] Displacement (vertical/horizontal). It can be beneficial to
limit displacement in either direction. In one design for a crisper
bin for a refrigerated appliance, horizontal displacement can be
less than 5-10 mm when the bin is half-extended and 10-15 mm when
fully extended; and vertical displacement could be on the order of
less than 10 mm but this can vary with each design. Of course, this
can vary according to need or desire.
[0144] Sound. In some designs it would be beneficial to minimize
foreign noises (e.g. clicking, scraping, or hissing by the movement
of the carrier or carrier/bin and the glide system and the
tolerance and/or anti-tip systems, or other components). On the
other hand, there may be acceptable subdued extension sounds (e.g.
rail transition clicks to give the user an auditory and/or tactile
indication of position of the carrier/bin). Weighted/unweighted
awareness. In some designs it will be beneficial to allow some sag
in the system (e.g. to give the user awareness of whether the bin
is full or empty).
[0145] It can be beneficial many times for the designer to have as
a goal a "quality feel" to action of the guides that allow the bin
or storage component to slide or glide. This may include features
like the following.
[0146] "Soft close". The bin, carrier, or other slideable/glideable
component is assisted to its home or closed position (pushed all
the way into the refrigerator cabinet). The bin is essentially
automatically pulled close once the user pushes the bin to a
position near closed. This can be accomplished in a variety of
ways. Examples include cooperating ramped or otherwise specifically
formed surfaces, elastomer materials, or mechanical mechanisms
(e.g. springs or air cylinders). Other methods are possible. It is
also possible to add a "soft open" function (a similar thing for
urging the bin to a fully open position).
[0147] Controlled glide/slide motion. The bin, carrier, or other
storage component can likewise be given some control of movement
(speed, resistance to travel, etc.) via cooperating surfaces (e.g.
ramped, variation in friction along glides or slides, springs, or
elastomers). Other methods are possible.
[0148] Control of lateral movement. What might be called "rattle",
"wobble", or the like can also be controlled by guides, cooperating
surfaces, rollers, and the like. This can help the "quality feel"
or smoothness of operation of movement of the storage component. It
can also allow essentially side-by-side placement of bins to
provide perceived or actual increase in storage space while
minimizing or preventing adjacent bins from hitting or banging into
one another or a cabinet wall during movement.
[0149] As can be appreciated by those skilled in the art, the above
and other design criteria, metrics, or options can be evaluated and
included or used in any combination. The foregoing are intended to
give the reader some design considerations that could be important
for some applications, such as in refrigerated appliances.
Dual Rail Exemplary Embodiment
[0150] With reference to FIGS. 3A-3G, another alternative
embodiment (assembly 200) is illustrated. It has the benefit of
under-bin glides with the carrier in between the base and the bin
for efficient lateral storage space use. The carrier 234 and base
232 are relatively thin to save vertical space. The main
differences from the preceding embodiments are as follows. In these
drawings, the bins 36 are narrower in lateral width than a
corresponding carrier. However, bins 36 can be as wide as the
carrier.
[0151] Base 232 has two under-bin rails 250 at opposite sides. In
this embodiment they are inwardly facing c-channels. They also
include an inner c-channel insert 251 (e.g. nylon, acetal, PTFE, or
the like).
[0152] Bin carrier 234 has added edge rails 260 that include a
distal edge that would matingly fit in the c-channel inserts 251 of
base plate 236.
[0153] As shown in FIG. 3E, the entire combination of cooperating
structures to provide sliding/gliding movement between a carrier
234 relative to a base 232 are within the perimeter of the bottom
of carrier 234 when the carrier is in home position. This allows
side walls of bins 236 to closely adjacent to one another. The two
rail or dual rail system provides surface-to-surface slide movement
with low friction coatings and nylon glide c-channel inserts.
[0154] FIGS. 3A-3G also show a closing assistance subsystem 270.
The curved metal plate at the front of base plate 232 cooperates
with tapered rails 293 on the bottom of bin carrier 234 similar to
tensioned wheels 72 and bowed rails 93 of FIGS. 2K and 2L. Plate
270 has a front edge 272 and rear or posterior edge 271. Front
tapered edges 295 of rails 293 would clear the upraised posterior
edge 271 of spring steel piece 270, which would bias carrier 234
towards the home position and tend to keep it there (a "soft close"
and assistance to find home). When the user pulls carrier 234 out,
and overcomes the resistance that is presented by rails 293 getting
thicker and having to work against spring 270, there will be a
controlled resistance until the posterior edge of spring 270 hits
the tapering 297 at the rear of rails 293. Spring would try to
"squirt" or influence carrier 234 to the fully open (but "soft
open"). Mechanical ends stops 299 would prevent any further outward
extension of carrier 234.
[0155] As can be appreciated, carrier rails 260 could be relatively
strong metal in this embodiment, as could rails 250. They could be
separate pieces that could be attached or mounted to the respective
carrier or base. But other materials could be possible.
[0156] The designer could select from a variety of materials
according to need or desire, including the different materials for
the under-bin glide (the dual rails 250/260 and any inserts or
coatings). Carrier 234 could be plastic or analogous moldable
materials such that features like rails 293 and end stops 299 could
be integrally molded into carrier 234.
[0157] FIGS. 3F and 3G illustrate in section how the assembled
glide system is configured in this exemplary embodiment. Optional
features are possible. One example is the ability to make rails 250
as a separate piece and use machine screws to attach them to base
232 (see FIG. 3G). Other methods of attachment are possible, as is
molding the rails 250 and base 232 together.
Dual Rail/Low Friction Exemplary Embodiment
[0158] FIGS. 4A-4I shows still further exemplary embodiment
(assembly 300). It also takes advantage of at least the features of
the preceding embodiments. The main differences are as follows.
[0159] This is also a dual rail system. However, FIGS. 4D-4I shows
a part 370 that is secured to base 332 for each bin carrier 334.
Piece 370 has built-in opposite c-channels which effectively are
the left and right guide rails 350 on base 332. Those rails are
within the bottom perimeter of its corresponding bin carrier 334
when carrier 334 is in home position. Complementary shaped carrier
rails 360 (left and right) are attached to the bottom of carrier
334 and also within its perimeter. Those rails 360 have an edge
flange that fits within a corresponding c-channel of base rails
360. Thus, dual rail glides are in place for each bin carrier
334.
[0160] It should be appreciated that rails 350 could be of a
material selected to have low coefficient of friction relative to
rails 360. It could also have a surface treatment of the same.
Examples of such surface treatments include but are not limited to
Polytetrafluoroethylene (PTFE), fluoropolymer, or analogous dry
film lubricants or coatings. A few examples are 1000 series
products from http://www.Whitfordww.com, specifically:
TABLE-US-00001 Product 1010 PAI + PTFE 1052 PAI + PTFE/MO52 1058
PAT + FEP
[0161] As indicated in 4G, C shaped rails 360 could have a nylon
glide pad (or similar low surface tension material) 361 inside them
to promote low friction sliding.
[0162] Stamped glide plate 370 has internal raised tracks 372 which
can cooperate with surface topography on the bottom of bin carrier
334 to further control side-to-side movement. By a single stamped
piece of durable metal attached to base 332, much of both the
under-bin glide system and a guidance system can be added to the
storage system.
[0163] Soft close or home position features (not shown) could be
added. For example, a device like device 270 could be positioned at
location 374.
Horizontal Roller Exemplary Embodiment
[0164] FIGS. 5A-5H show a still further embodiment (assembly 400).
This utilizes the same principle of base, bin carrier, and
under-bin glides or slides as previous embodiments. The main
differences are as follows.
[0165] System 400 includes a base 432 that has opposite C-shaped
rails 450 on base 432 but within the perimeter dimensions of
corresponding bin carrier 434 when it is in home position.
[0166] Both base 432 and carrier 434 have a pair of spaced-apart
rails 450 and 460, respectively that are used in the under-bin
glide system. Carrier rails 460 are formed in the bottom of bin
carrier 434. Base rails 450 are formed in the top of base 432.
[0167] Two sets of rollers, one set of base plate rollers 452 are
rotatable on vertical axes near the front edge of base 432. This
pair of horizontal rollers 452 is spaced to frictionally engage the
lateral sides of carrier rails 460. Two horizontal carrier rollers
462 are rotatably mounted and rotate about vertical axes near the
back of bin carrier 434. This pair of horizontal rollers 462 is
spaced to frictionally engage the lateral sides of base rails 450.
As shown in FIG. 5D, rollers 452 follow rails 460 of bin carrier
432. Wheels 462 follow guides 450 on base 432. In this manner
smooth control of glide or slide is promoted. Wheels 462 are shown
in FIG. 5C without carrier 432, the underside of which they are
rotatably attached, to show how they cooperate with base rails
450.
[0168] One example of a type of wheel 452 or 462 is disclosed in a
co-pending, co-owned U.S. patent application, entitled "Slide
Assembly for Refrigerator Storage Drawer", attorney docket number
SUB-03621, and incorporated by reference herein in its entirety.
Such a wheel can promote low friction and smooth gliding as well as
durability.
[0169] FIGS. 5G and 5H illustrate the cooperation between rails 450
and 460 and wheels 462 and 452 as a carrier is pulled out from home
position. A mechanical end stop 499 can be included on carrier 434
to work like prior embodiments (provide an absolute end-of-travel
mechanical stop). Soft open and close systems could be added.
[0170] FIGS. 6A-D show one example of a tolerance take-up wheel
that could be utilized with assembly 400. An axle 453 has two
mirror image pulleys 454 spaced slightly apart along its length.
One end of axle 453 is also exposed. Keyhole 458 in base 432 has a
large portion (larger in diameter than the largest diameters of
pulleys 454) and a small keyhole portion smaller than the largest
diameter of pulleys 454 but just larger than the diameter of axle
453. This allows insertion of the axle and pulleys into position as
shown. Pulleys 454 have a larger diameter than the larger part of
keyhole 458 and thus act as a mechanical stop against further
movement upward or downward relative to keyhole 458. A wheel 452 is
then rotatably mounted on the exposed end of axle 453. A set of
support blocks 455 on the top and another mirror image set on the
bottom of base 432 each hold a resilient band or spring 456 against
a corresponding pulley 454. This constantly urges axle 453 to stay
in extreme far end of the narrow part of key hole 458 (as shown in
FIGS. 6B and 6D.
[0171] As can be appreciated, by forming keyhole 458 appropriately
in the base (such as base 432 for example) so that the larger part
of keyhole is lateral or away from whatever track or rail wheel 452
is following when carrier 434 is slide relative to base 432, some
play or tolerance will be resiliently allowed if the forces exceed
the spring force of component 456. This tolerance take-up wheel
assembly can be used by any one, all, or a subset of wheels used in
any under-bin glide system between a carrier and base. There could
also be a separate take-up wheel assembly on one of the carrier or
the base and some structure on the other of the carrier or the base
which that wheel follows, apart from the glide system, to provide
tolerance take-up or assisted guidance.
[0172] Injection Molded Shelf And Glides
[0173] FIGS. 7A-7F show as still further exemplary embodiment
(several levels of assemblies 500). It takes advantage of at least
most, if not all, of the features of preceding embodiments with the
following specific differences.
[0174] Instead of a base plate that does not have a separate
function other than supporting bins or bin carriers, one or more
shelves 532 could be distributed in refrigeration cabinet 12 and
installed at a desired elevation across the width of cabinet 12.
Each shelf 532 could function just as that--a shelf. But it could
have mounting holes 533 or the like to receive one or more glide
assemblies on its top surface. An example would be the center rail
glide combination 50/60 of FIGS. 2A-2H.
[0175] As shown in FIGS. 7A-B, a shelf 532 could have screwed,
bolted, or pinned thereto anywhere for one to four single rail
glide halves 550. A single-wide bin 536 could have a corresponding
single rail guide half 560 attached to its bottom. In FIGS. 7A-F
just two of the single-wide bins 536 are shown. Another shelf 532
could be mounted in cabinet 12 directly above, but slightly spaced
from, the upper plane of bins 536 to function also as a cover to
bins 536.
[0176] A difference of this embodiment is that the lower shelf 532
with under-bin glide halves 550 serves as the analog of the base of
prior embodiments. But there is no bin carrier. The other half of
the glide combination is connected directly to the bin 536. This
could be the arrangement in any of the embodiments.
[0177] Note how this combination has a single piece
injection-molded or otherwise produced shelf, two complementary
glide rail halves and a bin. This combination has few parts, is
economical, and yet retains the under-bin slide concept.
[0178] Furthermore, as can be appreciated, as many as four glide
halves 550 can be mounted in mounting holes 533 on any shelf 532. A
"single-wide" bin 536 can be mounted on each glide half 550 to
mount four single-wide bins across the width of a shelf 532. Or two
single-wides and one double-wide can by mounted (see FIG. 7F). But
as indicated earlier, one single-wide and one triple-wide is
possible. As is just one four-wide (see bottom bin 536 in FIG.
7F).
[0179] FIG. 7F can also be used to understand certain advantages of
the under-bin glides according to the present exemplary
embodiments. Other bins 527 (or other storage components) that do
not have under-bin glides (here hanging from glides above them)
tend to have structure outside the perimeter of the bin and thus
prevents the sides of adjacent bins from being positioned as
closely as with under-bin glides. They could be mounted to mounting
holes 533 on shelf 532 or two differently configured shelves 526.
The efficient use of lateral space (and vertical space) is
illustrated with the under-bin glide assemblies of bins 536.
Options and Alternatives
[0180] As can be appreciated, the foregoing examples are for
illustrative purposes only. The invention can take many forms and
embodiments. Variations obvious to those skilled in the art would
be included within the invention.
* * * * *
References