DISPLAY CASE WITH MOUNTABLE PANELS

A display case can include panels, and frame members (e.g., corner extrusions) that secure the panels. In some examples, the frame members can magnetically secure the panels together in an assembled configuration of the display case. In some examples, the frame members can cooperate to provide improved mounting and demounting processes.

BACKGROUND

1. Field of the Disclosure

The present disclosure relates to display cases, and more specifically to mountable display case systems that can be easily assembled (“mounted”) and disassembled (“demounted”) at a display location.

2. Description of the Background of the Disclosure

A display case is generally an enclosure comprising at least one transparent or translucent surface. A transparent surface of a display case, for example, can provide a clear view of an object that is enclosed within the display case. Typically, a glass or an acrylic sheet is used to fabricate a panel for at least a portion of the display case.

Display cases may be used in an exhibition or a museum to display artifacts and artwork. Depending on the delicacy of the object that is being displayed, different types of display cases may be used for appropriate security, conservation, environmental control, and clarity for the object enclosed within. In addition, different types of display cases can be used depending on the size of the object that is being displayed, including a free-standing case (e.g., a mannequin, tower, or pedestal case), a wall display case (e.g., a free-standing case designed to positioned against a solid wall), a counter type case, etc. Further, different types of display cases may be assembled and disassembled with different routines.

SUMMARY

Generally, embodiments of the disclosed technology can include, in various combinations, a magnetic or otherwise improved joint assembly (e.g., at a corner joint). Some embodiments can include arrangements of frame members configured for assembly and disassembly without removal of edge pieces from associated panels, or with various other features or benefits.

According to one aspect, a display case can include a first panel having a first edge profile, a second panel having a second edge profile, a first edge piece having a first recess that receives the first edge profile to secure the first edge piece to the first panel, and a second edge piece having a second recess that receives the second edge profile to secure the second edge piece to the second acrylic panel. The first edge piece can include a first magnetic component (e.g., a rare earth or other magnet). The second edge piece can include a second magnetic component (e.g., a ferrous component or a second magnet). The first magnetic component can be aligned with the second magnetic component to magnetically secure the first and second panels together at a panel joint (e.g., corner joint) of the display case.

According to another aspect, a display case can include a first panel with a first edge profile, a second panel with a second edge profile, a first extruded edge piece that includes at least one first magnet, and a second extruded edge piece that includes at least one magnetic component (e.g., one or more of: at least one second magnet or at least one ferrous component). The first and second extruded edges can engage the first and second panels at the first and second edge profiles so that the magnetic force from the at least one first magnet on the at least one magnetic component secures the panels together at a joint of the display case.

According to another aspect, a display case can include a first panel that defines a first viewing area of the display case, and a second panel that defines a second viewing area of the display case. A first magnetic assembly can support a first magnetic component (e.g., a first magnet or a first ferrous component) at first edge of the first panel. A second magnetic assembly can support a second magnetic component (e.g., a second magnet or a second ferrous component) at a second edge of the second panel. The first and second magnetic assemblies can be magnetically secured together by the first and second magnetic components to secure the first and second panels together at a corner joint of the display case.

According to another aspect, a display case can include a first panel and a second panel, each including an upper region, a medial region, and a lower region, a top inner extrusion, an inner base extrusion including a first protruding flange, and a corner assembly including a first (e.g., magnet) corner extrusion secured to the first panel and a second (e.g., magnet keeper) corner extrusion secured to the second panel. The first corner extrusion can define a pocket that contains at least one first magnet and the second corner extrusion can define a pocket that contains at least one magnetic component that includes one or more of: at least one second magnet or at least one magnet keeper. The corner assembly can cooperate with the top inner extrusion to form an upper periphery and can cooperate with the inner base extrusion to form a lower periphery, wherein the at least one first magnet and the at least one magnetic component cooperate to secure the first corner extrusion to the second corner extrusion to thereby secure the first panel to the second panel at the corner assembly. The upper region of the first panel can be received into an upper cavity formed by the upper periphery, and the lower region of the first panel can sit on the first protruding flange of the inner base extrusion.

According to another aspect, a process of assembling a display case can include, with a first panel pre-assembled to a first corner extrusion and with a second panel pre-assembled to a second corner extrusion, assembling the first corner extrusion and the second corner extrusion to form a corner joint of the display case, wherein a magnetic engagement between the first and second corner extrusions holds the first and second panels together at the corner joint.

According to another aspect, a process of disassembling a display case can include, with a first panel received in a top channel of the display case and seated on a base shelf of the display case, releasing one or more threaded fasteners that secure the first panel to the display case via an edge piece that receives an edge of the first panel, so that the first panel remains secured to the display case via magnetic engagement of the edge piece. Without removing the edge piece from the first panel, moving the first panel off of the base shelf and then moving the first panel downward and outward, relative to the display case, to remove the first panel from the top channel and magnetically disengage the panel from the display case.

According to another aspect, a process for a display case can include assembling the display case by aligning a first panel with a second panel, and magnetically securing a first magnetic assembly at a first edge of the first panel to a second magnetic assembly at a second edge of the second panel to secure the first and second panels together at a joint (e.g., corner joint) of the display case. The first panel can define a first viewing area of the display case and the second panel can define a second viewing area of the display case. The first magnetic assembly can support a first magnetic component (e.g., a first magnet or a first ferrous component) and the second magnetic assembly can support a second magnetic component (e.g., a second magnet or a second ferrous component) to magnetically engage the first magnetic component.

DETAILED DESCRIPTION

In general, display cases may include transparent or translucent (or other) panels that are coupled to a framework formed from various frame members. The framework provides support to the plurality of panels that holds the plurality of panels together in place to enclose a three-dimensional interior display space (e.g., to display a showcase object). In many cases, transparent panels for display cases can be made from glass or acrylic, although other materials are possible (e.g., other transparent or translucent composite materials known in the art). Depending on the showcase object that is being displayed, different types of display cases may be used to define particular viewing areas of the display case through which a display can be observed (e.g., with different numbers or sizes of panels). In some cases, a display case may include conservational and environment control functions (e.g., airtight sealing, temperature control, humidity control), security functions (e.g., security alarms), enhanced optical functions, or other features.

Conventional display cases are typically built-in display cases or free-standing display cases. Built-in display cases may be built into various structures (e.g., mounted to a room wall, or built as room partitions). Free-standing display cases may generally be self-supporting rather than built into other structures, and can be formed in various configurations (e.g., as mannequin, tower, or pedestal cases), Some display cases can be built to display an object from all sides (e.g., except from below), whereas others can be built or positioned to display an object only from select sides (e.g., from three or fewer sides for wall display cases).

Display cases can conventionally be manufactured in variety of shapes, styles, and materials depending on the purpose of the display cases. Some conventional display cases are manufactured by specializing companies and are customized to meet the demands of the showcase object. For example, conservational grade cases include tightly controlled environment that is free from chemical pollutants. After the components constituting the display cases are manufactured, the display cases may be shipped pre-assembled or may be assembled after shipping. The shipping of pre-assembled display cases may pose logistic difficulties (e.g., more expensive, requires large shipping area), handling difficulties (e.g., heavy machineries involved to transport the pre-assembled display case), and may pose fitting problems (e.g., fitting through tight spaces, doors, corridors of the exhibition site). To alleviate the difficulties posed by pre-assembled display cases, display cases can be sent in a ready-to-assemble configuration with instructions, or a technician may be sent to the exhibition site to orchestrate the assembly process.

Generally, assembling and disassembling a large display case can be difficult due to the size and the weight of the panels, the size and the weight of the framework, and the limited fitting space around the intended location of installation. Some obstacles may be overcome by the use of particular materials. For example, traditionally, glass was the most prevalent material used for fabricated display cases. However, glass sheets can be expensive, brittle, and heavy, can require long lead time, and can require a lot of labor force and preparation time to install the corresponding display case(s). To overcome the limitation presented by glass, acrylic (or other composite) sheets can be used. The acrylic sheets are typically less expensive, requires shorter lead time, and weigh about 50% less than equivalent glass sheets.

Even with improved material usage, the limited space around the intended location of installation can be a substantial impediment to efficient assembly and disassembly of large display cases. For example, conventional display cases require the vitrine to be slid out of engagement from the associated base to gain access to the internal display area of the display case. Accordingly, conventional designs can require unobstructed overhead space more than twice the height of a vitrine. Further, conventional designs may require glass lifting equipment, such as a telehandler or a crane, to lift the vitrine for removal or to carry the removed vitrine to a desired location.

To overcome these limitations or otherwise provide improved functionality, stability, durability, etc., embodiments of the present disclosure provides a free-standing display case with a framework and a plurality of display panels. In some cases, the framework can include a corner or other joint assembly (e.g., an of aluminum or other corner extrusions) that can magnetically secure panels in an installed configuration (e.g., to be further secured with threaded fasteners). For example, a corner assembly can include a magnet corner extrusion and a keeper corner extrusion that include complementary arrangements of one or more magnets (e.g., rare earth or other strong magnets) and one or more ferrous members (e.g., iron bars) arranged in a collectively formed pocket between the magnet corner extrusion and the keeper corner extrusion. In some examples, similar arrangements can include magnets (e.g., rare earth magnets) on both sides of a joint assembly for a display case. For example, a first corner extrusion can hold a first set of magnets and a second corner extrusion can hold a second set of magnets, collectively arranged to be complementary relative to polarity and location so that magnets of one extrusion cooperatively magnetically engage with magnets of the other extrusion to hold the extrusions together.

In some examples, select frame members (e.g., on an inner framework) of a framework for a display case can define a support shelf and a channel. The channel can slidingly receive a panel assembly to provide lateral engagement of the panel assembly and the shelf can provide vertical support for the panel assembly. Thus, for example, during installation, a top surface of the display panel can be inserted into the channel and the bottom surface of the display panel can be supported on the shelf, and uninstallation of the display panel can include moving the display panel off of the shelf and sliding the panel downward out of the channel. Thus, for example, the panel assembly can be installed or uninstalled without needing to remove edge members from the panel or needing to lift the panel assembly to extend substantially above the top of the display case.

Referring now toFIG.1, an example display case100is shown in accordance with the present disclosure. Although the display case100is a free-standing type display case, the principles disclosed herein can also be employed in other arrangements. In particular, the display case100includes a plurality of corner (edge) frame assemblies104(e.g., with frame members formed as extrusions), a plurality of transparent panels120,124(etc.), a plurality of outer upper covers108(e.g., also formed as extrusions), and a plurality of outer lower covers112(e.g., also formed as extrusions), which may be coupled to one another after the machining process of each individual parts to provide a prism-shaped display case with an enclosed interior display area. Although the display case100as shown includes transparent acrylic panels in particular, one or more panels for the case100or other cases discussed herein can be alternatively formed with other types or materials or levels of transparency. For example, different materials (e.g., glass, composites) can be used or certain panels may be opaque or translucent instead of being transparent.

The free-standing type display case100defines an upper face128, a bottom end136, and side faces132defined between the upper face128and the bottom end136along a vertical direction V, perpendicular to a ground plane GP. The upper face128and the side face132form an upper periphery140and the bottom end136and the side faces132form a lower periphery144. The side faces132of the display case100may be defined by the corner assemblies104and by the side panels124along the vertical direction V. The upper face128of the display case100may be defined by the upper covers108and by the top panel120. The lower face136of the display case100may be defined by the lower covers112. The upper periphery140includes upper edges148that meet to define a top corner (vertex) TC. The lower periphery144includes lower edges152that meet to define a bottom corner (vertex) BC.

Generally, the panels120,124can be transparent (e.g., fully transparent) and may be tooled along the edges and along the side thereof (e.g., particularly in the case of acrylic or other composite panels). Additional treating of acrylic or other panels may be applied to enhance light transmittance and transparency. In some implementations, ASTM standard D1003 20221 Edition (Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics) may be used to measure the visible light transmissivity and, thus, relative transparency/translucency/opaqueness of the herein-described materials. Further, it is intended that the suggested testing protocols be followed for the particular material being reviewed and that if Procedure A, which utilizes a hazemeter, or Procedure B, which used a spectrophotometer, provide for different visible light transmission results/percentages, that the higher value of the two procedures be used for purposes of the present disclosure. It is also contemplated that if a subject material to be considered for purposes of this disclosure has a non-planar configuration, e.g., a groove, that a planar portion of the particular material be used for testing purposes.

Alternatively, ASTM standard D1746 2021 Edition (Standard Test Method for Transparency of Plastic Sheeting) may be used to measure opacity and, thus, the relative transparency/translucency/opaqueness of the herein-described materials, with suitable standardized equipment, such as an opacity meter. As used herein, the term “opacity” refers to the extent to which a surface, an object, or a layer of material impedes the transmission of light through it and, thus, is the inverse of the visible light transmissivity measurement referenced herein. It is contemplated that opacity and visible light transmissivity may be used interchangeably and that measurements according to either ASTM D1003 or ASTM D1746 may be used; however, for purposes of this disclosure, the measurements of visible light transmissivity according to ASTM D1003 protocols are preferred.

Referring now toFIG.2, top corner (vertex) assembly200of the display case100is shown, as formed by the corner assembly104and adjacent top frame members (as further discussed below). In particular, the corner assembly104includes corner extrusions204,208, that can be magnetically secured together to define a corner (edge) of the display case100. For example, the corner extrusion204can include one or more magnets220arrayed along the vertical direction V, and the corner extrusion208can include a plurality of magnet keepers224(e.g., ferrous plates as shown, or other magnetic components) along the vertical direction V. In other examples, both of the corner extrusions204,208(or others) can include complimentarily arranged magnets or magnet keepers

Thus, unlike conventional assemblies that rely exclusively on threaded fasteners, the corner assembly200can be secured together using magnets, including during staging of the various panels during an installation process. For example, the magnets220located within the corner extrusion204(or other first-edge magnetic assembly) and the magnet keeper224within the corner extrusion208(or other second-edge magnetic assembly) are attracted by a magnetic force. The magnetic force generated between the magnet220and the magnet keeper224is strong enough to hold the corner extrusions204,208together as needed.

In some embodiments, the magnet220may be fastened internally to the magnet corner extrusion204using a fastening mechanism, such as, but not limited to a dowel pin240or a threaded fastener. In some embodiments, the magnet220and the magnet keeper224may be secured using an adhesive or other known retention mechanism. In some embodiments, to maximize the magnetic force between the magnet220and the magnet keeper224, a zinc plating finish or a galvanizing finish may be induced to the surface of the magnet keeper224.

In some examples, corner members can also be secured together non-magnetically. For example, the corner extrusions204,208can also be coupled using a variety of fasteners, adhesives, etc., to supplement (or replace) a magnetic engagement. For example, in the present disclosure, a hexalobular screw244can be fastened through a countersink aperture236formed on the magnetic keeper extrusion208to couple the corner extrusion204and the corner extrusion208to supplement the holding force and security of the magnetic engagement. However, the magnetic engagement of the magnetic components220,224can be generally strong enough to hold the corner assembly104together during installation, without requiring additional (e.g., manual) intervention from installers.

To further define the volume of the display case100, the corner assembly104can be coupled with top frame members perpendicular to the vertical direction V. For example, in the illustrated example, the corner assembly104can be secured to top frame members formed as extrusions212A,212B. The extrusions212A,212B can be generally similar, and are also referred to collectively herein as extrusions212. As shown inFIG.2, an end of one of the extrusions212B can include an edge cut-out232that can be aligned, as assembled, along a centerline C with the countersink aperture236to provide clearance for the fastener244. The top extrusions212can be coupled with the corner assembly104by a bracket plate260(e.g., a L-shape bracket as shown) or otherwise. In particular, in the illustrated example, the bracket plate260includes a plurality of apertures272that are equally spaced along the bracket plate260to receive fasteners to secure the bracket plate260to the extrusions212. In the present disclosure, cone point (or other) screws264can be used to secure the bracket plate260with the corner assembly104, although other configurations are possible.

Thus, the assembly of the corner assembly104and the top extrusions212can form an inner framework252. As further discussed below, the inner framework252may receive the side panels124in cooperation with the corner assemblies104. In some examples, the panels124may also be secured to the extrusions212by one or more fasteners (e.g., a cup point screw280).

Still with reference toFIGS.1and2, the outer covers108can be coupled with the inner extrusions212of the inner framework252. Thus, the covers108may conceal fasteners or other features located along the upper face128or around the upper periphery140of the display case100. The covers108, for example, can be fastened using a security screw268extended through a first aperture288located on a top flange of the cover108and a second aperture292located on a top flange of the corresponding extrusion212. In some embodiments, the outer upper cover108may be fastened using a customized fastener to provide extra security. Of note, with the cover108in place (or with other covers disclosed herein), the screws244and others that secure the corner assembly104(or other joint assembly) may be fully hidden from view, from the perspective of an observer on the ground outside the display case100. This may provide further security for the case100generally (or other cases), including by deterring opportunistic attempts to disassemble the case100to access the interior space.

Referring toFIGS.3A and3B, the extrusions212generally include a lower cavity308(e.g., formed as an elongate channel), an upper cavity310(e.g., formed as an elongate channel), a horizontal flange312, and a vertical flange316, as well as other supporting structure. The extrusion212can be secured to the corner assembly104via insertion of the bracket plate260into the upper cavity310, to be retained by the lips of the cavity310, and engagement of the screws268to secure the covers108in place over the cavity310. The horizontal flange312thus extends laterally inwardly to support the top panel120along the horizontal direction H. Further, the vertical flange316is thus aligned to support the upper region320of the corresponding side panel124along the vertical direction V. Jointly with the corner assembly104, the cavity310(and the vertical flange316) can thus hold the side panel124in place. For example, in some mounting procedures, as further discussed below, the side panels124may be inserted into the cavity308to help align the panels124for installed engagement.

In different examples, different cover profiles are possible. In the illustrated example, as shown inFIG.3B, the outer upper cover108includes an outer side surface314and an upper surface302. The outer side surface314extends parallel to the vertical direction V and the upper surface302extends parallel to the horizontal direction H. The upper surface302of the outer upper cover108is parallel with the horizontal flange312of the top inner extrusion212and includes a protrusion304extruding downwardly along the vertical direction from the upper surface302of the outer upper cover108. The protrusion304can help installers to appropriately locate the cover108relative to the extrusion212, via engagement with an inner surface306of the extrusion212, and also help to keep the cover108in place during installation of the screw268. Further, the extended length of the upper surface302in the inward direction can help to prevent removal of the panel120prior to removal of all of the screws268and the covers108. The outer side surface314extends parallel to the vertical flange316of the top inner extrusion212. In particular, in some examples, the outer side surface314of the outer upper cover108extends further than the vertical flange316of the top inner extrusion212.

As also shown inFIG.3B, in some cases, threaded inserts370or other threaded profiles in the panel124can receive screws374inserted from inside the display case100to further secure the panel to the extrusions212(or other frame members). Thus, during installation of a panel (e.g., as also discussed with respect toFIGS.13and18A-19B), the panel can be secured at select locations along a relevant horizontal frame member, as well as at the relevant corner joints. Moreover, the internal access required for the screw(s)374can provide even greater security against unauthorized access to the display case100. For example, to remove the panel124, a user may thus be required to remove the screws268and the cover108, then remove the screw(s)374. For security, the screws374and the inserts370in combination can prevents the removal of the top frame altogether. These components can also provide alignment of the panels relative to the frames to help ensure proper alignment with the magnetically engaged accessible panels.

Referring toFIGS.4and5, details of the (edge) corner assembly104are shown in accordance with one example of the present disclosure. As mentioned above, the corner assembly104includes the corner extrusion204and the corner extrusion208. The extrusions204,208of the corner assembly104are joined along a part line that defines first joining plane JP1which extends parallel with the Y-direction Y and a second joining plane JP2which extends parallel with the X-direction X. The first joining plane JP1and the second joining plane JP2intersect each other at an intersection point IP. In other words, the part line at the corner joint defined by the assembly104extends inward to intersect a wall of one of the extrusions204,208(e.g., at a wall that defines a channel to receive the corresponding panel, as shown). Similarly, the part line at the corner joint also extends outward to intersect a wall of the other of the extrusions204, 2048 (e.g., at a thickened portion of the wall that receives the corresponding magnetic component, as shown). Through these arrangements, alone or in combination with other relevant features (e.g., as further discussed below), the corner joint can exhibit notable strength as well as improved security relative to conventional designs.

In the illustrated example, the corner extrusion204includes a web340, and a plurality of flanges extending outwardly in both directions from the web340to form a generally I-shaped profile. In some embodiments, the web340may include plurality of apertures (not shown) to receive fasteners (e.g., to secure the extrusions204,208together). The corner extrusion204also includes an outer vertical channel352and an inner vertical channel356defined by the web340and the plurality of flanges. The outer vertical channel352in particular is further defined by a protruding flange324, that extends along the Y-direction (according to the reference frame ofFIG.4) to define a narrowed opening into the channel352along the extrusion204and thus a hooked or generally J-shaped profile for the channel352overall. This arrangement, for example, can allow for easy but secure sliding engagement with a complementarily shaped edge of a panel.

In some embodiments, the protruding flange324may extend up to 33% of the thickness of the panel (not shown inFIG.4). In some embodiments, the protruding flange may extend up to 50% of the thickness of the panel (not shown inFIG.4). On an opposite, external side of the extrusion204, a first fillet384A can be formed adjacent to the inner vertical channel356, extending inwardly from an outer face396of the extrusion204. The inner vertical channel356can include grooves (e.g., one or more U-shaped grooves364) extending along the vertical direction V, which can receive a bead of adhesive to help ensure that relevant magnetic components are firmly secured in place as desired (e.g., to remedy potential issues with adhesive engagement between the potentially sharp-cornered magnetic components and the potentially rounded-corner extrusions, etc.).

In contrast to the extrusion204, the extrusion208in the present example exhibits a lower case y-profile, although other configurations are also possible. In particular, the extrusion208defines an outer vertical channel372, and an inner vertical channel376, which are formed integrally along a first outer surface336that is parallel to the first joining plane JP1. The outer surface336includes the countersink aperture236, and a relief groove348that extends along the vertical direction V. Similarly to the channel352, the channel372includes a protruding flange328that extends along the X-direction (as shown inFIG.4). Thus, similarly to the channel352, the channel372defines a hooked or generally J-shaped profile that can allow for easy but secure sliding engagement with a complementarily shaped edge of a panel. However, in other examples, other profiles are possible (e.g., with correspondingly complementary profiles on relevant panels).

In some embodiments, the protruding flange328may extend up to 33% of the thickness of the panel (not shown inFIG.4). In some embodiments, the protruding flange328may extend up to 50% of the thickness of the panel (not shown inFIG.4). The medial vertical channel376can include U-shaped or other grooves similar to the channel356(see above), and The outer surface336can include a second fillet384B.

As noted above, the magnet corner extrusion204and the magnet keeper extrusion208are coupled together along a part line that defines the first joining plane JP1and the second joining plane JP2. The first joining plane JP1is located between the first fillet384A and the second fillet384B or an outer face392of the extrusion208and the outer face396of the extrusion204. The fillets384A,384B can thus be arranged to collectively form a second relief groove344, as shown inFIG.4. Further, the combined length of the outer faces392,396in the X direction can be equal to the length of the outer face336in the Y direction. Thus, for example, the corner assembly104can be generally visually symmetrical, and the relief grooves344,348can be formed equidistant from a corner edge380.

Further, the coupling of the extrusions204,208aligns the channels356,376to form an internal pocket360. In some embodiments, the pocket360may enclose the magnet220and the magnet keeper224, for example, with the magnet220or the magnet keeper224at least partially in contact with an inner surface368of the pocket360(seeFIG.5). Thus, as further discussed below, the extrusions204,208can be magnetically secured together to form the corner assembly104.

Referring toFIG.5, in particular, the channels352,372can be identical in size and shape and thus can interchangeably engage any panel formed with a corresponding edge profile. In the illustrated example, the vertical channel352(like the channel372) includes an opening404, an innermost receiving surface408, a medial receiving surface416, an outermost receiving surface412and the protruding flange324(or328). These features thus collectively form an internal profile420of the vertical channels352,372that can receive and engage a corresponding edge of the side panels124. In some embodiments, the vertically extending side (not shown) of the panels may be machined or otherwise formed to fit the internal profile420of the vertical passages. For example, in the present disclosure, the vertically extending side of the side panels may be a J-shape profile machined into an acrylic or other composite panel. In other examples, other configurations are possible.

Referring back toFIG.4, the unique shape of the magnet corner extrusion204(e.g., the magnet keeper extrusion208wrapping around the corner edge380in addition to the first relief groove344and the second relief groove348) can provide several benefits over a typical framework of a display case. Typically, a break line of a display case is formed at a corner edge of the case, which can make the display case more susceptible to gapping, visually highlight the break lines, and result in less than optimal security. In contrast, the magnet keeper extrusion208comprises the first relief groove344and the magnet corner extrusion204comprises the second relief groove348formed reciprocally with the magnet keeper extrusion208, mimicking the break line. The first relief groove344can thus camouflage the actual break line between first fillet siding384and the second fillet siding388. The configuration of the present disclosure also relocates the break line to be offset from the corner edge of the display case, which can make the break line less visible, help to reduce the gap caused by the panel alignments, and align an insertion direction (e.g., along the plan JP1) with a solid wall of at least one of the extrusions204,208so that an inserted tool (e.g., a prying tool) cannot easily enter the interior display space of the display case. (In this regard, it should be understood that a corner edge of a display case can exhibit various geometries, including machined or extruded radiused profiles (e.g., as shown inFIG.4), chamfered profiles, or other varied profiles available under known manufacturing approaches.)

Referring also toFIG.2, the magnet220and the magnet keeper224of the present disclosure is positioned within the pocket360formed internally between the magnet corner extrusion204and the magnet keeper extrusion208. In some embodiments, the magnet220may be made from neodymium or alloys of neodymium, iron or boron. The magnets220may be of various lengths and can be spaced evenly (or otherwise) within the vertically extending pocket360. The magnets are generally strong enough to hold the corner extrusion assembly104together in place without the fasteners in place, as can substantially improve staging during installation. In addition, the magnet provides self-alignment assistance between the magnet corner extrusion204and the magnet keeper extrusion208during the assembly process. However, the screws can be added to provide additional support and security to the overall structure.

As also shown inFIG.5, the magnet keeper224(or other magnetic component) and the channel376can be sized (or installed) so that the magnet keeper224(or other component) extends proud of the extrusion208along the channel376. In contrast, the magnet220(or other magnetic component) and the channel356can be sized (or installed) so that the magnet220(or other component) is recessed within the channel356. Accordingly, in some examples, a magnetic component on a first corner member (e.g., the magnet keeper224on the extrusion208) can extend into a channel on another corner member (e.g., the extrusion204) to mechanically align the corner members together as well as provide a magnetic connection. In some examples, as also discussed below, other alignment members can be used.

Referring toFIG.6, an exploded view of a bottom (vertex) corner500of the display case100of the present disclosure is shown. The bottom corner500of the display case100includes a floor plate504, a foot plate,512, a swiveling leveling mount516, an adjusting nut524, a set of inner base extrusions520, another set of bracket plates260, variety of fasteners, and the outer lower cover112. Similar to the top inner extrusion212, the inner base extrusions520are coupled together by coupling with the corner extrusion assembly104, and thus discussion of the upper corner200as shown inFIGS.2and3generally also applies relative to the bottom corner500. For example, in some embodiments, two of the bracket plates260and plurality of cone point (or other) screws264may be used to secure the inner base extrusions520together along the edge528of the inner base extrusion520. (Generally, different types of screws may be used instead of the cone point screws264, as is generally true for other example threaded fasteners presented herein.)

The inner base extrusions520include multiple protruding members that can help to secure the floor plate504, the foot plate512, and the outer lower covers112. In some embodiments, the floor plate504includes a lattice structure508formed between the upper surface and the lower surface of the floor plate504. The lattice structure508within the floor plate504provides a lightweight structure and rigidity to the floor plate504. The floor plate is secured by the inner upper protrusion within the inner base extrusion520. The foot plate512is secured to the inner lower protrusion with a fastening mechanism such as a hexalobular (six-lobe) screw244(e.g., also with a central security post to require a further specialized driver), to the inner base extrusion520. The foot plate512includes a foot plate aperture532, which receives the swiveling level mount516. The outer lower covers112are secured to plurality of protrusions extruding outwardly from the inner base extrusion520, as further described below. The inner base extrusion520can also include plurality of apertures540arranged to pin the panels124(not shown inFIG.6) to secure the panels124to the extrusions520(as needed).

Referring toFIG.7, the outer lower cover112includes a plurality of flanges extruding in an inward direction IN along the horizontal direction H. The first flange is an upper flange556, which exhibits an L-shape. The upper flange556includes a protrusion558that extends in the opposite direction from the free end of the L-shape, along the web of the upper flange556. The second flange is a medial flange560, which also exhibits an L-shape. The third flange is a lower flange564, which generally extends in a single direction but includes a hooked portion (e.g., a C-shaped or otherwise hooked free end, as shown).

As described above, the inner base extrusion520comprises a plurality of protrusions extending in an inward direction IN and a plurality of protrusions extending outwardly in an outward direction OT. The first protrusion is an inner upper protrusion572, which extends in an inward direction IN along the horizontal direction H. The inner upper protrusion572includes a first L-shape flange576extending outwardly perpendicular to the horizontal direction. The first L-shape flange576supports the floor plate504and encases the bracket plate260that couples the inner base extrusions520or the corner extrusion assembly104. The second protrusion is an outer upper protrusion588, which extends in an outward direction OT along the horizontal direction H. As also discussed below, the outer upper protrusion588can support the side panels124by providing a shelf to support the panels124relative to gravity.

The third protrusion is an outer medial protrusion592, which extends in an outward direction OT along the horizontal direction H. The outer medial protrusion592can include a protrusion594that bulges perpendicularly at the outer tip of the outer medial protrusion592or can be otherwise configured for engagement (e.g., snap engagement) with the protrusion558. The fourth protrusion member is an inner lower protrusion584, which extends in the inward direction IN along the horizontal direction H to be coupled with the foot plate512and to support a web585extending in an outward direction. The foot plate512is further coupled with the swiveling level mount516and may be adjusted by the adjusting nut524. The fifth protrusion member is an outer lower Z-shaped protrusion596. In particular, the outer lower Z-shape protrusion596can include a web598extending in the inward direction between the Z-shape protrusion and an end600at the outmost tip of the outer lower Z-shape protrusion596(e.g., shaped with a geometry complementary to the hooked portion of the flange564or otherwise configured for hinged engagement with the cover112). In the illustrated embodiment, the web598is disposed opposite of the web585and can thus define a channel to receive one of the bracket plates260.

The protrusions of the inner base extrusion520and the flanges of the outer lower covers112can be coupled together to form an assembly between an outer surface548of the inner base extrusion520and an inner surface544of the outer lower cover112. In some examples, the lower panels can be snap-coupled to the inner base extrusion520via engagement of the protrusions558,594and can be hingedly attached via engagement between the flange564and the rounded end600. In particular, the outer medial protrusion592of the inner base extrusion520and the upper flange556of the outer lower covers112can be mated together by the protrusion558of the upper flange556and the protrusion594of the outer medial protrusion592, forming a securable hinge mechanism. The protrusion558of the upper flange556can thus serve to selectively secure the cover112to the outer medial protrusion592at the protrusion594with the cover112in an installed orientation (as shown inFIG.7) . Additionally, the C-shape flange joint568of the lower flange564can engage the rounded end600outer lower Z-shape protrusion596to permit the cover112to be hinged, about the inner base extrusion520. The securable hinge mechanism can thus secure the outer lower covers112securely with the inner base extrusion520and can also conceal the fasteners from viewers to improve security and aesthetic appearance of the display as a whole.

As also shown inFIG.7, in some cases, threaded inserts570or other threaded profiles in the panel124can receive screws574inserted from inside the display case100to further secure the panel to the extrusions212(or other frame members). Thus, during installation of a panel (e.g., as also discussed with respect toFIGS.13and18A-19B), the panel can be secured at select locations along a relevant horizontal frame member, as well as at the relevant corner joints. Moreover, the internal access required for the screw(s)574can provide even greater security against unauthorized access to the display case100. For security, the screws574and the inserts570in combination can prevent the removal of the panel from the base frame. As similarly discussed relative toFIG.3B, these components can also provide alignment of the panels relative to the frames to help ensure proper alignment with the magnetically engaged panels.

Referring toFIGS.8and9, a rectangular base free-standing display case800is shown in accordance with the present disclosure that includes identical corner assembly components as the free-standing type display case100shown inFIG.1. The rectangular base free-standing display case800includes a top panel804, a floor plate808, a front panel812, a back panel816, a right panel820, and a left panel824. The display case may be partitioned into an upper region836, a medial region840, and a lower region844. The upper region836includes an outer upper panel828, a top inner extrusion864, and the upper region of the corner extrusion formed adjacent to the top panel804and the upper region836of the front panel812, the back panel816, the right panel820and the left panel824defining an upper periphery848. The lower region844includes an outer lower cover832formed along the floor plate808, an inner base extrusion868(e.g., four extrusions joined together, as shown). The lower region of the corner extrusion formed adjacent to the floor plate and the lower region of the front panel812, the back panel816, the right panel820and the left panel824define a lower periphery852. The front panels812and the back panels816may be connected by a lap joint member872that extend perpendicular to the upper periphery848and the lower periphery852of the display case800.

Referring toFIGS.10-12, the lap joint member872connecting the front panels812and back panels816of the present disclosure is shown. The front panel812and the back panel816include a plurality of apertures900formed along the upper region836and the lower region844of the panel. The plurality of apertures900are concentric with other apertures located within the display case800. In the present disclosure, the front panel812is formed by a leftmost front panel904, a medial panel908and a rightmost front panel912. The panel of the display case800includes a thinned side916along both side of the panel along the vertical direction V. In some embodiments, the side of the may be thinned between 30% and 50% of the overall thickness of the panels.

Specifically referring toFIG.11, the leftmost front panel904includes a thinned left side contact920and a thinned right side contact924. The medial panel908includes a thinned left side contact928and a thinned right side contact932. The rightmost front panel912includes a thinned left side contact936and a thinned right side contact940. The thinned left side contact920of the leftmost front panel904is coupled with the corner extrusion860and the thinned right side contact924of the left most front panel904is coupled with the left thinned side contact928of the medial panel908, and is sandwiched between the front lap joint member956and a rear lap joint member960.

The top inner extrusion864includes a mouse-hole shaped aperture952, the aperture952formed to overlay (e.g., concentrically along an axis of) the first aperture944formed within the front lap joint member956and a tapped hole (not shown) formed within the rear lap joint member960. In some embodiments, the tapped hole may receive a threaded fastener. The inner surface of the front lap joint member964and the inner surface of the rear lap joint member968sandwiches the thinned side916of the panels. For example, the plurality of aperture900of the panel aligns concentrically with the mouse-hole aperture952, the first aperture944of the front lap joint member956and the tapped hole of the rear lap joint member960. Through the concentric aperture, a fastener972is inserted to securely couple the panels with the lap joint member872.

Referring toFIG.12, another example lap joint member976configuration is shown. Similar to the lap joint member872, the L-shape lap joint member976includes a front L-shape lap joint member980and a rear L-shape lap joint member984. For example, the front L-shape lap joint member980and the rear L-shape lap joint member984sandwiches the thinned right side contact924of the leftmost front panel904and the thinned left side contact928of the medial panel908, with shorter legs of the L-shapes of the joints . The panels are held in place by an inner surface992and an obstructing inner surface996of the L-shape lap joint member976. The inner surface992applies compression between the plates while the obstructing inner surface996prevents the plates from sliding. In some embodiments, a fastener may be used to couple the panels and the lap joints.

Referring back toFIG.11, the cross-sectional top plan view of the display case is shown. The thinned sides916of the leftmost front panel904resembles a S-block cross-sectional shape1000, and the thinned left side contact920and the thinned right side contact924are placed diagonally opposite of each other. The thinned sides916of the rightmost front panel912resembles a Z-block cross-sectional shape1004, and the thinned left side contact936and the thinned right side contact940are placed diagonally opposite of each other. The thinned left side contact920interacting with the corner extrusion860includes a hook flange918that is slid axially into the vertical passage (referring to352,372ofFIG.5). Unlike the leftmost front panel904and the rightmost front panel912, the medial panel908resembles a T-block cross-sectional profile998(expressed by dotted line), and the thinned left side contact928and the thinned right side contact932are straightly aligned to each other. The thinned sides916of the leftmost front panel and the rightmost front panels are positioned rearward with respect to the thinned sides of the medial front panels. This enables the medial panel908to be easily removed for cleaning the display case800, adjustment of interior, or for maintenance of the object within the display case800.

Referring toFIGS.8and13, an exemplary process of assembling the display case800is shown in accordance with the present disclosure. Referring to a first operation1012, the inner base extrusion868is assembled together to form the lower periphery852of the display case800. The inner base extrusion868is coupled using bracket plates260and a plurality of security fasteners. The inner base extrusion868may be coupled with additional components to provide adjustment in height. Referring back toFIG.6, the bottom corner500is defined within the lower periphery852. In some embodiments, the inner base extrusion868may be coupled with the foot plate512comprising the swiveling level mount516that enables adjustment of heigh of the display case800. After the inner base extrusion868is coupled together, the floor plate808is mounted on to the inner base extrusion868.

A second operation1016includes the assembly of the front left side corner extrusion and the placement of the corner panels. Referring back toFIG.4, the corner extrusion includes the magnet corner extrusion204and the magnet keeper extrusion208. The magnet corner extrusion204includes the magnet220and the magnet keeper extrusion208includes the magnet keeper224, and the magnetic force between the magnet220and the magnet keeper224snaps the magnet corner extrusion204and the magnet keeper extrusion208in place. The magnetic force between the magnet220and the magnet keeper is strong enough to hold the corner extrusion together. The corner extrusion860is coupled with the inner base extrusion by a plurality of fastening mechanisms. The thinned corner edges of the panels are mounted through the vertical channels352,372extending through the corner extrusions860. The panels may be further secured using a fastening mechanism such as a dowel pin240along the inner base extrusion868. In some cases, as also noted above, panels may be shipped with at least corner members pre-installed.

Similar to the second operation1016, a third operation1020includes the assembly of the rear left side corner extrusion and the placement of the corner panels and fourth operation1024includes the assembly of the right side corner extrusions and the corner panels. Once all four corner extrusions860and the adjacent panels are assembled, the rear lap joints960may be partially coupled along the medial region of the display case800. The inner surface of rear lap joint member968is assembled along the thinned side916of the panel. The rear lap joint member960may be secured to the inner base extrusion868by a fastening mechanism.

A fifth operation1028includes the assembly of the top inner extrusions864. Referring back toFIG.2, the top inner extrusions864are coupled with the corner extrusion860to form the upper periphery848of the display case800. The top inner extrusion may be coupled with the corner extrusion by a fastening mechanism and may be coupled with the upper region836of the panels using a dowl pin for extra security and stability. The top inner extrusion may be coupled to each other by the bracket plate and plurality of fastening mechanisms. In some embodiments, the top inner extrusion864includes the J-groove edge232, which allows security screws to be fastened through the panels and the corner extrusions860. The J-groove edge232provides extra security while enabling easy disassembly process which is discussed later on. Once the top inner extrusion is assembled along the upper periphery848, the top panel804may be placed on top of the top inner extrusion.

A final illustrated operation1032of the assembly includes the assembly of the medial panels908around to form the front panels812and the back panels816, assembly of the lap joint member872, and the coupling of the outer upper panels828and the outer lower panels832. The configuration of the medial panel908allows the medial panel908to be inserted between the leftmost front panel904and the rightmost front panel912as described above. Once the medial panel908is positioned between the leftmost front panel904and the rightmost front panel912, the front lap joint member956is coupled along the thinned sides916of the panels. The front lap joint member956and the rear lap joint member960sandwich the thinned layers of the panels and a fastener is used to fasten the lap joint member872and the panels together.

Once all the panels are in place, the outer upper panel828and the outer lower cover832may be coupled with the inner base extrusion868and the top inner extrusion864. The outer upper panel828may be secured using a security screw in along the top surface of the outer upper panel in a top-to-down approach. The security screws located along the top surface of the outer upper panel provides extra security and makes the security screws inaccessible without a ladder or other elevation devices. As described inFIG.7, the outer lower cover832may be coupled with the inner base extrusion868. The hinge-lock protrusions558,594of the outer lower cover832and the inner base extrusion868snaps the outer lower cover832and the inner base extrusion868together concealing the security screws and other fastening mechanisms while providing aesthetic appearance and extra exterior support to the panels.

The assembly of the display case100in the present disclosure may be assembled following the similar process and excluding the medial panel and the lap joints. Further, in some cases, other assembly processes may proceed in a different order than presented above, and with only a subset of the listed operations as applicable (e.g., during a partial demounting of a display case for cleaning or other maintenance). Further, in some cases, screws can also be used to secure panels to the relevant base or top extrusions (e.g., as discussed above with respect toFIGS.3B and7).

The process of disassembly of the display case may be the reverse of the process of assembly described above. The security screws located on the outer upper panel828fastening with the top inner extrusion864in the top-to-down approach is removed. Once the outer upper panels828are removed, the outer lower panels832are unclipped from the inner base extrusions868. As needed, security fasteners attaching panels can be removed (e.g., relative to the inner base extrusion868, the J-groove edge232of the top inner extrusion864, the corner extrusion860, etc.). By using a suction cup lifter or other device, the panels may then be removed by pivoting along the top inner extrusion to remove the lower edges of the panels from the supporting shelf (see also discussion ofFIG.7). In some embodiments, the display case may be partially demounted (e.g., with some panels remaining in place).

Referring toFIGS.14and15, aspects of a disassembly (or assembly) process are shown. Specifically,FIGS.14and15show the removal (or addition) of the outer lower cover832and the removal (or addition) of the panel1040, but identical operations can be implemented in some cases for disassembly (or assembly) of the display case100ofFIGS.1through7, or the display cases1300presented below. Prior to the disassembly, the inner base extrusion868and the outer lower cover832support an interior side1044and an exterior side1048of the panel1040while the panel1040is seated against gravity on a first protruding flange1052. The inner base extrusion868defines an inner wall1056and the outer lower cover832defines an outer wall1060. The inner wall1056, the outer wall1060and the first protruding flange1052forms a lower cavity1064within which the panel1040is positioned. The lower cover832is removable, which in turn allows the panel1040to be easily removed during the disassembly. As similarly discussed relative toFIG.7, which illustrates a similar arrangement, the inner base extrusion868includes a second protruding flange1068with a locking protrusion1072, which locks the outer lower cover832in place during and after the installation of the display case. The outer lower cover832includes an inward protruding flange1076with a protruding locking member1080that is engaged with the locking protrusion1072from the second protruding flange1068of the inner base extrusion868when the cover832is fully installed.

Upon an outward (e.g., pivoting) movement of the outer lower cover832, the protruding locking member1080of the outer lower cover832can then unlock from (e.g., snap off of) the locking protrusion1072of the inner base extrusion868, thereby allowing the removable of the outer lower cover832. Once the outer lower cover832is removed, the panel1040may be removed from the display case assembly. Specifically referring toFIG.15, the panel1040may be engaged (e.g., grabbed by a suction cup lifter) at the exterior side1048of the panel1040and may then be pivoted within an upper channel1084formed by the top inner extrusion864. Correspondingly (and, e.g., simultaneously), the bottom side1088of the panel1040can be lifted or slid off of the seated engagement with the first protruding flange1052, allowing the panel1040to be slid downwards and the top side1092of the panel1040to be moved out of the upper channel1084. The panel1040, including with edge frame pieces (e.g., extrusions) still attached as applicable, can then be set aside for further operations (e.g., cleaning or maintenance operations, further similar disassembly of other panels, etc.).

As also noted above, in some cases, screws can also be used to secure panels to the relevant base or top extrusions, as discussed above in particular with respect toFIGS.3B and7. Similar approaches can also be used with respect to the operations illustrated inFIGS.14and15, with the corresponding addition (as appropriate) of steps to remove (or install) screws to secure the panel1040directly to the inner base extrusion868or the top inner extrusion864(e.g., with generally the same arrangement as illustrated inFIGS.3B and7).

In some cases, corner assemblies can include additional (or alternative) structures to assist with alignment, including various complementary protrusions and recesses, or other similar arrangements. Referring toFIG.16, for example, a different embodiment of a display case1200includes a panel1204with a side1208(e.g., a fixed side) and a side1212(e.g., a removal side). The display case1200includes a corner extrusion assembly1104, a top inner extrusion1220, and an upper outer panel1224(e.g., generally similarly configured as other similar extrusions discussed above). Separate, substantially identical corner extrusion assemblies form four corners of the display case1200. In particular, the corner extrusion assembly1104includes a first corner extrusion1228that is defined by a Y-shaped cross-section and a second corner extrusion1232that is defined by a H-shaped cross section (e.g., with similar materials or overall profiles as other extrusions discussed above). Along the X-direction (see illustrated reference frame), two first corner extrusions1228are placed at opposite ends of the panel1204, mirrored along a first horizontal axis HA1between the first corner extrusions, to form the removal side1212of the display case1200. Along the Y- direction, two second corner extrusions1232are placed at opposite ends of another panel, mirrored a second horizontal axis HA2between the second corner extrusions, to form the fixed side1208of the display case1200is formed.

As also noted above, in some embodiments, corner extrusions may be coupled using sets of magnets (not shown) arranged as polar opposites. For example, referring toFIG.17, the first corner extrusion1228includes a first magnetic component1240(e.g., a first magnet) and the second corner extrusion1232includes a second magnetic component1236(e.g., a second magnet or a ferrous body). The magnet components1240,1236are arranged with opposite polarity, or otherwise complementary magnetic configurations, to impart an attractive magnetic force between the two corner extrusions. The magnetic force generated between is generally sufficient to couple the first corner extrusion1228and the second corner extrusion1232to form the corner extrusion assembly1104, at least for staging to improve the ease of aligning and inserting any further fasteners.

In some embodiments, a corner extrusion assembly can include other alignment features, including as may supplement alignment forces from a magnetic arrangement or assist in overcoming misalignment forces that may result with some magnetic assemblies (e.g., for pairs of magnets and particular ferrous keeper components). For example, a corner extrusion can include (e.g., be integrally formed with) alignment features including a wide variety of configurations of protrusions and corresponding recesses (e.g., as complementary features on opposing portions of two corner extrusions) or other similar systems. In some embodiments, an alignment feature can be separately formed and received into a channel of an extrusion (e.g., to protrude from the extrusion for engagement with an opposing other extrusion). For example, as shown inFIG.17, the corner extrusion assembly1104may include an alignment aid1244that is positioned to extend within recesses of both extrusions upon assembly (e.g., within the pocket1248) and that thereby provides enhanced alignment between the first corner extrusion1228and the second corner extrusion1232.

The corner extrusion assembly1104and the alignment aid1244may be formed from a different material. For example, the alignment aid1244may be formed from a lightweight material, such as a polymers or plastics of various known types. Further, as also discussed above, a magnetic component may in some cases also serve as a mechanical alignment aid.

In different examples, an alignment aid can have a variety of different configurations. In the present embodiment, the alignment aid1244is formed of a rectangular (e.g., square as shown) beam1252, although other geometries are possible. The square beam1252is positioned along the vertical direction V within the pocket1248formed by the first corner extrusion1228and the second corner extrusion1232and the square beam1252is partially in contact with both a first inner surface1256of the first corner extrusion1228and a second inner surface1260of the second corner extrusion1232. The square beam1252is positioned between the magnets along the vertical direction V providing enhanced alignment to the corner extrusion assembly1104. For example, physical contact between the beam1252and the extrusions1228,1232can prevent the extrusions1228,1232from shifting out of alignment relative to one or more degrees of freedom (e.g., vertically, and also laterally in two directions).

In some examples, the corner extrusion assembly1104may not include an alignment aid1244disposed along the vertical direction V within recess of both extrusion upon assembly. Instead, the first corner extrusion1228may include the first corner magnetic component1240that is disposed within the recess of the first corner extrusion1228, and the second corner extrusion may include the second corner magnetic component1236disposed within the recess of the second corner extrusion. The magnetic components1236,1240will be in direct contact with each other. In some examples, the thickness of the magnetic components1236,1240can be adjusted to provide improved fitting (e.g., fit to cover the recess volume of the pocket1248) within the pocket1248. In some examples, a gasket (not shown, e.g., rubber, silicone, polymer composites) can be disposed within the pocket1248to reduce the air exchange by reducing a gap between the first and second corner extrusions1228,1232.

In some examples, similar (e.g., substantially identical) extrusions can be used for non-corner and for corner joints. Referring toFIGS.18A and18B, for example, a symmetrical display case1300formed as an alternative configuration of the display case100defines a front side1304, a rear side1308, a right side,1312, and a left side1316. The display case1300includes a corner extrusion assembly1320, a top inner extrusion1324, and an outer upper cover1328. The corner extrusion assemblies1320include a first corner extrusion1332and a second corner extrusion1336similar to the extrusions1232ofFIG.16described above. In particular, in the illustrated example, the corner extrusion assemblies1320include the first corner extrusion1332that is defined by a H-shaped cross-section and the second corner extrusion1336that is defined by a Y-shaped cross section. The front side1304and the back side1308of the display case1300includes a plurality of panels1340and the right side1312and the left side1316of the display case1300include panels1344. The plurality of panels1340along the front side1304and the rear side1308of the display case1300are coupled together with the second corner extrusions1332, which in this case can also serve as connectors along non-corner joints. The plurality of panels1340may include fasteners or stiffening supports1348as needed (e.g., implemented similarly to the screws374,574discussed above). The right side and the left side panels1344of the display case1300is coupled with at corner joints that each include a set of the corner extrusions1332,1336. By removing the panel1344along the right side1312of the display case1300, the plurality of panels1340along the front side1304of the display case may be removed from right to left. In this regard, although discussion of the display cases discussed above (e.g., the case100) also generally applies to the case1300, those of skill in the art will recognize that somewhat different assembly and disassembly orders may be used.

Further details of an example installation (or uninstallation) process for the display case1300are illustrated inFIG.18C. In this example, in a first (or other) operation1350, one of the panels1344and the adjacent set of the panels1340can be installed at a first end of the display case1300, via magnetic engagement of the extrusions1336,1332(see alsoFIGS.18A and18B) at the corner extrusion assemblies1320and attachment of threaded fasteners as needed (e.g., as show in detailed inset, and also discussed relative to other examples above). Threaded fasteners (e.g., fasteners1348) can then also be extended through the panels1340(e.g., into threaded inserts thereof) to secure the panel1340to a base extrusion1352of the display case1300, as also shown in detailed inset inFIG.18C(e.g., and as illustrated and discussed relative toFIGS.3B and7). At operations1355,1360, with these three panels1344,1340thus secured in place, the additional panels1340can then be installed in sequence (i.e., moving from right to left on the page, in the illustrated example). In particular, as also noted above, the panels1340can be successively joined using the extrusions1332, also with corresponding engagement of threaded fasteners as needed (e.g., to further secure the panels1340to the base extrusion1352, as shown and as similarly discussed relative toFIGS.3B and7). As also shown inFIG.18C, ends of the panels1340can be contoured as needed, to be received into the relevant channels of the extrusions1332, as also generally discussed above and below. Finally (or otherwise), the second panel1344(seeFIGS.18A and18B) can be secured in place using the corresponding extrusions1332,1336, as similarly discussed above.

Further in this regard,FIGS.19A and19Billustrate another alternate configuration of the display case1300(and100) in which a top inner frame member (e.g., extrusion)1400includes a relatively large mouse hole access opening1404. In some embodiments, the access opening1404may be greater than about 30% and up to 100% (inclusive) of a length L of the frame member1400. The access opening1404provides extra clearance during the removable of the panels1416, as may allow lateral pivoting of a panel1416for removal from an associated side-joint extrusion. Thus, for example, the panel1416may be removed after detaching an upper cover1408, by pivoting the assembly of the panel1416and a first Y-shaped corner extrusion1424laterally outward (e.g., about a vertical axis) to be removed from a H-shaped extrusion1428at a parallel-panel side joint (e.g., after removing a pin or other fastener that secures the panel1416to the side-joint extrusion1428). Thus, for example, a single extrusion profile can be used for corner joints and parallel joints between panels of a display case, with corresponding improvements in security of the installed panels, and in the ease of installation and uninstallation.

As generally discussed above, various frame members and covers according to the disclosed technology can exhibit various geometric profiles. Referring toFIG.20, for example, an alternative configuration of the inner base extrusion520is presented with reference numbers that are identical to those ofFIG.7. For example, the inner base extrusion520as shown inFIG.20includes an outer medial protrusion592disposed between an outer upper most protrusion588and a Z-shape protrusion596. Similarly,FIG.21illustrates an alternative configuration of the lower cover112that is configured to be removably coupled with the inner base extrusion520ofFIG.20. The alternative embodiment of the lower cover112also includes reference numbers that are identical to those ofFIG.7. For example, the lower cover112has a medial flange560disposed between an upper flange556and a lower flange564.

Relative to the example ofFIG.22, additional security along non-accessible panels may be achieved by riveting (or otherwise mechanically attaching) the lower cover112to the base extrusion520at the vertical flanges556and560. Various structures, including grooves as shown along the interior of the structure can aid in the placement of these attachments.

To adapt to varied needs of various cases, various covers and frame members can exhibit varied configurations for support of panels, for snap (or other) couplings, and so on (e.g., corresponding to various dimensional or other differences). For example, the outer medial protrusion592may be disposed at different location (e.g., between the upper most protrusion588and the Z-shape protrusion596). As illustrated inFIG.22, for example, the location of the outer medial protrusion592of the inner base extrusion520is disposed further apart from the upper most protrusion588along a length L of the inner base extrusion520in comparison to the outer medial protrusion592ofFIG.7. Accordingly, the location of the medial protrusion of the lower cover112can be accommodated to a corresponding location to removably couple the lower cover112to the inner base protrusion520.

In some examples, a width W of the outer upper protrusion588and the outer medial protrusion592may be wider or shorter to accommodate the thickness of the panel (not shown), and accordingly, the width W of the upper flange556and the medial flange560can be adjusted based on the width of protrusions588,592of the inner base protrusion520to provide appropriately located stops for movement of the cover112toward the extrusion520.

Various frame members discussed herein, including the top inner extrusions, the corner extrusions, the inner base extrusions, the outer upper panel, and the outer lower panel may be manufactured from various metallic or non-metallic material. For example, the aforementioned extrusions and panels may be formed from any one of or an alloy of aluminum, bronze, brass, copper, stainless steel, carbon steel, titanium, zinc, polymeric materials, or other suitable materials. In some embodiments, the material of the extrusions and the material of the panels may be different. In some embodiments, the extrusion and panels formed from different materials may be painted or varnished to an identical color or finish. In some embodiments, non-extruded frame members can be used.

In some embodiments, the display casing system can be shipped to the intended site of assembly in a flat packed configuration, including as facilitated by one or more of the extruded (e.g., aluminum) elements, panel profiles, magnetic arrangements and other components and systems discussed above. Correspondingly, embodiments of the present disclosure can allow for improved assembly and disassembly of the enclosure with minimization of assembly effort and skills, including for settings with limited space around or above the display case installation. For example, due to the installation and de-installation processes discussed above, some embodiments require only a limited headroom above the enclosure to successfully assemble and disassemble the enclosure. Further, to deter unauthorized access to the objects within the case, relevant fasteners can be hidden from sight (e.g., above the eyeline).

Some examples are discussed above with respect to particular manufacturing techniques (e.g., extrusion) and materials (e.g. aluminum). In other example, similar or other assemblies can be formed according to this disclosure using different techniques or materials.

Any of the embodiments described herein may be modified to include any of the structures or methodologies disclosed in connection with different embodiments. Further, the present disclosure is not limited to display cases of the type specifically shown. Still further, aspects of the display cases of any of the embodiments disclosed herein may be modified to work with any type of display cases.

As used herein, unless otherwise limited or defined, “or” indicates a non-exclusive list of components or operations that can be present in any variety of combinations, rather than an exclusive list of components that can be present only as alternatives to each other. For example, a list of “A, B, or C” indicates options of: A; B; C; A and B; A and C; B and C; and A, B, and C. Correspondingly, the term “or” as used herein is intended to indicate exclusive alternatives only when preceded by terms of exclusivity, such as “one of,” “only one of,” or “exactly one of.” For example, a list of “one of A, B, or C” indicates options of: A, but not B and C; B, but not A and C; and C, but not A and B. A list preceded by “one or more” (and variations thereon) and including “or” to separate listed elements indicates options of one or more of any or all of the listed elements. For example, the phrases “one or more of A, B, or C” and “at least one of A, B, or C” indicate options of: one or more A; one or more B; one or more C; one or more A and one or more B; one or more B and one or more C; one or more A and one or more C; and one or more of A, one or more of B, and one or more of C. Similarly, a list preceded by “a plurality of” (and variations thereon) and including “or” to separate listed elements indicates options of multiple instances of any or all of the listed elements. For example, the phrases “a plurality of A, B, or C” and “two or more of A, B, or C” indicate options of: A and B; B and C; A and C; and A, B, and C.

Similarly, unless otherwise specified or limited, the terms “about,” “approximately,” and “substantially” as used herein with respect to a reference value refer to variations from the reference value of ± 5%, inclusive.

As used herein, unless otherwise limited or specified, “substantially identical” refers to two or more components or systems that are manufactured or used according to the same process and specification, with variation between the components or systems that are within the limitations of acceptable tolerances for the relevant process and specification. For example, two components can be considered to be substantially identical if the components are manufactured according to the same standardized manufacturing steps, with the same materials, and within the same acceptable dimensional tolerances (e.g., as specified for a particular process or product).

As noted previously, it will be appreciated by those skilled in the art that while the disclosure has been described above in connection with particular embodiments and examples, the disclosure is not necessarily so limited, and that numerous other embodiments, examples, uses, modifications and departures from the embodiments, examples and uses are intended to be encompassed by the claims attached hereto. The entire disclosure of each patent and publication cited herein is incorporated by reference, as if each such patent or publication were individually incorporated by reference herein. Various features and advantages of the invention are set forth in the following claims.