WO2008085897A2

WO2008085897A2 - In-wall mount

Info

Publication number: WO2008085897A2
Application number: PCT/US2008/000130
Authority: WO
Inventors: Jay Dittmer; Mathew Schuh; Seth Baker; Steven Durkee
Original assignee: Milestone Av Technologies, Inc.
Priority date: 2007-01-05
Filing date: 2008-01-04
Publication date: 2008-07-17
Also published as: WO2008085897A3; MX2010007910A; CA2675012A1

Abstract

An in-wall mount for supporting a display, the in-wall mount being mountable in a wall formed in part by a plurality of studs, including mount structure fixedly couplable between selected adjacent studs of the wall, and a mount base laterally shiftably operably couplable to the mount structure.

Description

IN-WALL MOUNT

RELATED APPLICATIONS The present application claims the benefit of U.S. Provisional Application No.

60/883,652, filed January 5, 2007, U.S. Provisional Application No. 60/957,937, filed August 24, 2007, and U.S. Provisional Application No. 60/957,941, filed August 24, 2007, all the noted applications being incorporated herein in their entirety by reference.

FIELD OF THE INVENTION

The present invention relates to mounts for flat panel displays, and more particularly to in-wall mounts for flat panel displays.

BACKGROUND OF THE INVENTION

Flat panel electronic displays have become very popular due to their compact size, desirable aesthetics, and superior performance. The inherent form factor and weight advantages of these displays have made large screen sizes economically and practically feasible, leading to rapidly increasing demand for these large screens. Often, it is desirable to mount a flat panel display from a fixed structure such as a wall, ceiling, column or other structural feature. Consequently, specialized mounts have been developed to enable displays to be mounted from fixed structures, while also enabling selective positioning of the display for visibility or convenience.

One of the desirable aesthetic aspects of flat panel displays is the flat appearance of the display when mounted on a wall - resembling a framed photograph or painting. In order to enhance this flat appearance, it is desirable for the mounting structure to enable the rear side of the display to be mounted as close as possible to the wall surface. While very low profile fixed mounts have been developed, it is often desirable for the mount to enable selective positioning of the display. Such positionable mounts typically are thicker in depth and result in the back of the display being mounted further from the wall surface. For such mounts, it is desirable for the mount to be attached in a recess in the wall surface.

In-wall recessed mounts are typically disposed in a recess formed in a wall between the wall framing studs. A limitation of the present in- wall recessed mounts is that they are typically constrained to being centered between adjacent studs. It is rare, however, that the most desirable location for the mount is precisely centered between studs. Usually, the optimal aesthetic location for the display will be at a point that is closer to one adjacent stud than the other adjacent stud. In order to avoid these constraints and achieve the optimal location, a stud must often be cut and framed in much the same manner as framing in an opening for a window. Such framing can be an expensive modification that is both time consuming and messy in an existing structure.

Some prior adjustably positionable mounts include various arrangements of brackets and arms to enable tilting of the display screen. Examples of such tilt mounts are disclosed in U. S

Patent No. 6752363 to Boele and U.S. Published Patent Application No. US20020033436A1 by

Peng, et. al.; and U.S. Patent Nos. 6,905,101 to Dittmer and 7,028,961 to Dittmer, et. ah, each hereby fully incorporated herein by reference.

One advantage of flat-panel electronic display devices over CRTs is the appealing aesthetic of a very shallow device that resembles a framed photo or painting when mounted on a wall. As this aesthetic advantage has been achieved, users have become more discerning about aesthetics in general, desiring ever more accuracy of positioning of the display on a particular wall, and desiring the display to be positioned ever closer to the wall, while still retaining full positioning capability for the display.

There is a need then in the industry for an in-wall mount that may be centered at any lateral location between framing studs.

Previous mounting solutions have sometimes enabled the mounting arms or other apparatus to be stowed in an enclosure in the wall in order to enable closer positioning of the display to the wall. A disadvantage of these prior solutions, however, is that the in-wall enclosure must be attached to the wall studs in order to support the weight of the display, and thus the position of the in-wall enclosure is typically limited by the location of the wall studs.

Enclosures have typically been made in a width to fit a standard stud spacing (e.g. 16 inches O. C). This results in a large in-wall enclosure that may be unsightly. In addition, such enclosures cannot be installed in locations where the stud spacing is not at the standard width without cutting or relocating the studs, possibly compromising wall structural integrity and/or causing disruption and expense.

Where prior in-wall enclosures are narrower than the stud spacing, they typically have been attached to one or the other of the adjacent studs. This limits location of the in-wall enclosure to locations proximate studs, which may not be optimal for aesthetic purposes.

Further, prior mounting solutions, while sometimes enabling the display to be selectively positioned at a distance from the wall assembly, have typically experienced significant sag at greater distances from the wall, due to the significant weight of the display. This sag problem can be especially acute for heavy plasma displays, and can be unsightly. What is still needed in the industry is an in-wall display mounting solution that addresses the drawbacks of prior in-wall display mounting solutions by enabling easy positioning of the display mount at nearly any position on a wall and that also counteracts display sagging when the display is positioned at a distance from the wall.

SUMMARY OF THE INVENTION

The centering in-wall mount of the present invention substantially meets the aforementioned needs of the industry. The centering in-wall mount eliminates the need for remodeling wall framing when mounting a recessed mount in a wall. Additionally, it provides for horizontal translation of the mount to position the flat panel display at virtually any desired location on the wall that is not directly obstructed by a stud.

Further, the present invention addresses the need of the industry for an in-wall display mounting solution that enables easy positioning of the display mount at nearly any position on a wall and that also counteracts display sagging when the display is positioned at a distance from the wall.

In an embodiment, the present invention is an in-wall mount for supporting a display, the in-wall mount being mountable in a wall formed in part by a plurality of studs, including mount structure fixedly couplable between selected adjacent studs of the wall, and a mount base laterally shiftably operably couplable to the mount structure. The present invention is further a method for supporting a display.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an elevational view of the centering in-wall mounts of the present invention in the left most disposition; Fig. 2 is an elevational view of the centering in-wall mount of Fig. 1 in the right most disposition;

Fig. 3 is a perspective view of the centering in-wall mount in a centered disposition; Fig. 4 is a rear perspective view of the centering in-wall mount;

Fig. 5 is an elevational view of the second embodiment of the centering in-wall mount depicted in the centering position;

Fig. 6 is an elevational view of the centering in-wall mount of Fig. 5 in a leftward disposition;

Fig. 7 is an elevational view of the centering in-wall mount of Fig. 5 in a left most disposition; and Fig. 8 is a rear perspective view of the centering in-wall mount corresponding to the disposition of Fig. 5.

FIG. 9 is a perspective view of an in-wall mount interface according to an embodiment of the invention in a wall assembly and with a flat panel electronic display mounted thereon and shifted away from the wall assembly;

FIG. 10 is a perspective view of the in-wall mount interface of FIG. 9 depicted in a retracted position and with the studs of the wall assembly exposed;

FIG. 1 1 is a side elevation view of the in- wall mount interface of FIG. 9 with the housing depicted in phantom; FIG. 12 is an opposite side elevation view of the in-wall mount interface of FIG. 9 with the housing depicted in phantom;

FIG. 13 is a fragmentary front perspective view of the in-wall mount interface of FIG. 9; FIG. 14 is a front elevation view of the in- wall mount interface of FIG. 9; FIG. 15 is a front perspective view of the housing and arm assembly of the in-wall mount interface of FIG. 9 with the arm assembly in a retracted position;

FIG. 16 is a front perspective view of a housing of the in-wall mount interface of FIG. 9; FIG. 17 is a fragmentary front perspective view of an in- wall mount interface according to an embodiment of the invention with an external mounting track system depicted in phantom; FIG. 18 is another fragmentary front perspective view of an in-wall mount interface according to an embodiment of the invention with portions of an external mounting track system depicted in phantom;

FIG. 19 is a fragmentary side elevation of the in- wall mounting assembly of an in-wall mount interface according to an embodiment of the invention with portions of the assembly depicted in phantom; FIG. 20 is a fragmentary front elevation view of an in-wall mount interface according to an embodiment of the invention with portions of an external mounting track system depicted in phantom;

FIG. 21 is a side elevation view of the external mounting track system depicted in FIG. 20; FIG. 22 is a perspective view of an in-wall mounting assembly for an in-wall mount interface according to an embodiment of the invention;

FIG. 23 is a perspective view of a housing interface component of the in-wall mounting assembly depicted in FIG. 22;

FIG. 24 is a perspective view of an end flange component of the in-wall mounting assembly depicted in FIG. 22; and FIG. 25 is a perspective view of a carrier component of the in-wall mounting assembly depicted in FIG. 22.

While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical wall 10 is depicted in the figures. Wall 10 includes framing comprising a sill plate 12, an opposed parallel header 14, and studs 16. The header 14 is supported on the plurality of generally parallel vertical studs 16 that are mounted on top of the sill plate 12 and extend upward to the header 14. Dry wall sheeting 18 is affixed to the wall framing to complete the wall structure. A rectangular aperture 19 is defined in the dry wall 19 between two adjacent studs 16. The aperture 19 is formed just slightly bigger than the exterior dimensions of the mount 20.

The centering in-wall mount 20 of the present invention includes two major subcomponents: mount box 21 and mount base 28. The mount box 21 is preferably made of relatively heavy structural material in order to support the cantilevered weight of a flat panel display and is fixedly secured to the adjacent studs 16 on either side of the aperture 19. The mount box 21 has a top 41 and an opposed bottom 42 that are joined by opposed parallel sides 44. A back plate 46 extends between the top 40, bottom 42 and sides 44. The mount box 21 is open facing the viewer in Fig. 1.

The mount box has a height 22, a width 24, and a depth 26. The width 24 of the mount box 21 is selected to be such that the mount box 21 fits between two adjacent studs 16. Typically, the studs 16 are either 16" on center or 20" on center. In both cases the width dimension 24 is selected to be the width of a stud less the applicable on center dimension. The depth dimension 26 of the mount box 20 is selected to be no greater than the depth dimension of a stud 16. For a standard 2X4 inch stud 16, the depth 26 is approximately 31/2 inches. The mount base 28 is laterally shiftably disposable within the mount box 21. The mount base 28 is fixedly mounted to the back plate 46 by bolts as being mounted in bore 29.

The mount base 28 has a footprint 30. The footprint 30 has a relatively narrow width 32 relative to the width dimension 24 of the mount box 21. Preferably, the width dimension 32 of the mount base 28 is about 4". Accordingly, as can be seen in Figs. 1 and 2, the mount base 28 can be mounted in the mount box 21 at virtually any position between the two adjacent studs 16, thereby effecting the centering capability of the mount 20. In this manner, the flat panel display can be mounted at any location along a wall with the exception of where an actual stud 16 is located. The mount base 28 further has a height dimension 34. The mount base 28 includes extendable mount structure 36. A mount frame 38 is shiftably coupled to the extendable mount structure 36. The mount frame 38 provides the mounting interface between the flat panel display and the centering mount 20.

A second embodiment of the centering mount 20 is depicted in Figs. 5-8. The centering mount 20 of the second embodiment retains the versatility exhibited by the centering mount 20 of the first embodiment by being positionable at virtually any position between two adjacent studs 16 as depicted in Figs. 5-7. In distinction, the second embodiment of the centering mount 20 employs a narrow housing 39 which is attached between two spaced apart horizontal brackets 50. Preferably, the brackets 50 are identical and when mounted in the wall 10 are inverted with respect to one another. Each of the brackets 50 is formed of a ribbed plate 52 possessing significant structural strength to support the flat panel display. On a first side of the ribbed plate 52, a pair of spaced apart elongate stud mounting slots 54 are defined. On the opposed side of the ribbed plate 52, a plurality of elongate base mounting slots 56 are defined. The brackets 50 may be fixedly mounted to the studs 16 by means of lag bolts or similar fasteners passed through the slots 54 and into the wood of the respective studs 16. The brackets 50 may be slightly recessed into the respective studs 16 and drywall 18 applied over the brackets 50 to create a more appealing appearance of the wall 10.

An aperture 19 only slightly greater than the footprint 30 of the base 28 is defined in the drywall 18 at any desired location between the two adjacent studs 16. An aesthetic advantage of the second embodiment as compared to the first embodiment is that the aperture 19 need only be as great as the footprint 30, making the interface of the centering mount 20 with the wall 10 less obtrusive. It should be noted that the mounting base 28 can be positioned at virtually any position left or right between the two adjacent studs 16. Once in the selected position, the housing 39 of the mounting base 28 is affixed to the two brackets 50 by couplers 58 extending between the mounting base 28 and the base mounting slots 56. It will be appreciated that in other embodiments, housing 39 may be omitted and the mounting base 28 attached directly to the brackets 50.

An embodiment of an in- wall mount interface 120 for interfacing a display mounting assembly 122 with a wall assembly 124 of a structure is depicted generally and in its various component parts in Figs. 9-25. Interface 120 generally includes housing assembly 126 and extensible arm assembly 128.

Referring to figs. 9-12, housing assembly 126 generally includes housing 130, in-wall mounting assembly 132, and external mounting assembly 134. Housing 130, as depicted in Fig. 16, generally includes sidewalls 136, end walls 138, and back wall 140. It should be noted that housing 130 may be made from metal, polymer, or other material having sufficient structural strendth to bear loads imposed by arm assembly 128 and display 166 mounted thereon. Sidewalls 136 define knockout openings 142 with knockout panels 143 for selectively receiving a standard electrical box 144, as depicted in Fig. 10. Sidewalls 136 further define horizontally registered apertures 146 for receiving lower pivot axle 148 of arm assembly 128. Upper end wall 150 defines a knockout opening 142 with a knockout panel 143 for selectively receiving a standard electrical box 144. Upper end wall 150 further defines locator notch 152 along rear edge 154. Lower end wall 156 may define a plurality of knockout openings 158, each with a knockout plug 160, for selectively receiving conduit, the conduit bearing signal or other wiring or cabling. Lower end wall 156 further defines locator notch 162 along rear edge 14.

Housing 130 may be secured in wall assembly 124 with transverse in- wall mounting assemblies 132 located at the top and bottom of housing 130. See Figs. 10 and 22. Each in-wall mounting assembly 132 generally includes interface plate 168, carrier 170, end flange 172, and retainer 174. As depicted in FIG. 22 and 23, interface plate 168 defines central aperture 176 and fastener holes 178 and includes projecting tab 180. Carrier 170, depicted in FIG. 25, presents inner end 182 and outer end 184. Wall engaging flange 186 projects perpendicularly proximate outer end 184 and defines elongate apertures 188. Projections 190 are defined in forward edge 192. Main body portion 194 defines central aperture 196 and fastener holes 197, and has channels 198, 200, defined along lateral edges 202, 204, respectively. As depicted if Fig. 24, end flange 172 generally includes interface portion 206 defining elongate apertures 208, and presenting guides 210, 212, along lateral edges 214, 216, respectively, and wall engaging flange 218 projecting perpendicularly therefrom. Flange 218 defines elongate apertures 220 and presents projections 222 along forward edge 224.

Retainer 174, depicted in Fig. 22, is generally rectangular in shaped and overlies interface portion 206 of end flangel72. Retainer 174 defines threaded fastener holes 226.

Referring to Figs. 15 and 15, each interface plate 168 is received and secured on outer side 227 of each' end wall 156 of housing 130, with projecting tab 180 engaged in locator notch 152, 162. Central aperture 176 registers with knockout opening 142 or with knockout openings 158, depending on which end wall 156 that interface plate 168 is received. Carrier 170 is secured to one of studs 228 (see Fig. 10) of wall assembly 124 with lag bolts (not depicted) through each of elongate apertures 188. Apertures 188 may be staggered as depicted in Fig. 25 to inhibit splitting of wood studs 228 by the lag bolts. End flange 172 is secured to an opposing one of studs 228 with lag bolts (not depicted) through elongate apertures 220. Apertures 220 may be staggered as depicted to inhibit splitting of wood studs by the lag bolts. End flange 172 is secured to carrier 170 at inner end 182 with fasteners (not depicted) extending through holes 197, elongate apertures 208 and threaded into holes 226 in retainer 174. Referring to Figs. 22 and 24, end flange 172 is slidable relative to carrier 170 by means of elongate apertures 208, thereby enabling the variable spacing between wall engaging flange 186 and wall engaging flange 218 to be adjusted to accommodate the spacing between studs 228. Projections 190, 222, depicted in Fig. 17 engage rear surface 232 of sheet rock 234 as depicted in Fig. 1.

Interface plate 168 (see Figs. 16 and 23) is received in channels 198, 200, of carrier 170 (see Figs. 22 and 25) and is slidable therein to enable housing 130 to be positioned anywhere between wall engaging flange 186 and wall engaging flange 218, and thereby anywhere between adjacent studs 228 as may be desired. It will be appreciated that the location of knockout openings 142 on both sidewalls 136 and on upper end wall 156 of housing 130 (see Fig. 16) enables at least two electrical boxes 144 to be used with housing 130 regardless of the position of housing 130 relative to adjacent studs 228.

As an alternative to in-wall mounting assembly 132, housing 130 may be secured in wall assembly 124 using external mounting assemblies 134. Each external mounting assembly 134, as depicted in Figs. 17-21, generally includes housing flange 236, wall track 238, spacers 240, and cover assembly 242.

Housing flange 236, depicted in Fig. 17, being generally L shaped in cross section, generally includes housing interface portion 244 with wall flange 246 extending perpendicularly therefrom. Housing flange 236 is secured to end wall 138 with one or more fasteners 248. Rear side 250 of wall flange 246 abuts front surface 252 of sheet rock 234, depicted in Fig. 1. Wall track 238 defines a plurality of elongate apertures 254 and abuts front side 256 of both the wall flange 246 and the spacers 240. Wall track 238 is secured to wall assembly 124 with fasteners 258 extending through elongate apertures 254 and apertures 260 defined in wall flange 246. By inserting fasteners 258 through different elongate apertures 254 and by sliding fasteners 258 in the elongate apertures 254, housing 130 may be positioned at nearly any desired position between respective adjacent studs 228 of Fig 10.

As depicted in Figs. 10-15, extensible arm assembly 128 generally includes lower pivot axle 148 as previously specified, along with lower arm 262, upper arm 264, central axle assembly 266, knuckles 268, 270, outer column 272, guide track 274 and guide roller 276. Lower pivot axle 148 extends between apertures 146 and pivotally receives inner end 278 of lower arm 262, such that lower arm 262 pivots about axis A-A of Fig. 12. Outer end 280 of lower arm 262 is pivotally attached to knuckle 270 at pivot 282. Outer end 284 of upper arm 264 is pivotally attached to knuckle 268 at pivot 286. Inner end 288 of upper arm 264 is operably coupled with guide roller 276 such that upper arm 264 pivots about axis B-B of Fig. 12. Guide roller 276 also rolls in channel 290 defined by guide track 174. Guide track 174 is secured to rear wall 140 of housing 130 with fasteners 192. Outer column 172 rests on knuckle 168 and is fixed thereto, while knuckle 170 is slidable up and down on outer column 172. Lower arm 162 and upper arm 164 are pivotally coupled to each other in scissors fashion with central axle assembly 166. Mounting head 194 is received on outer column 172, and couples display 66 with arm assembly 28. Details of mounting head 194 are disclosed in a separate U.S. Provisional Patent Application entitled WALL-AVOIDING SELF-BALANCING MOUNT FOR TILT POSITIONING OF AN ELECTRONIC DISPLAY, Serial No. 60/957941, filed 24 August 2007, noted above. In use, arm assembly 128 may be folded into housing 130, as depicted in Figs. 10 and

15, in order to place display 166 proximate, or even in contact with, wall assembly 124 of Fig.9. As a user pulls display 166 away from wall assembly 124, lower arm 262 pivots on lower pivot axle 148, guide roller 276 rolls downward in guide track 274, and knuckle 270 slides downward on outer column 272 to enable lower arm 262 and upper arm 264 to pivot in scissors fashion relative to each other to support display 166 away from wall assembly 124 as depicted in Fig. 11.

With either embodiment, an aperture may be formed in the sheet rock 134 that closely conforms to the desired location of housing 130 relative to studs 228. A thin trim ring 300 (see

Fig.9) may then be disposed around the opening to cover any unsightly edges of the sheet rock

234. In embodiments of the invention, axis A-A is positioned slightly closer to the front of housing 130 than axis B-B, as depicted in Fig. 12, by the dimension ΔD. This results in the arms 262, 264 being of unequal length. This lateral displacement of the respective couplings of the lower arm 262 and the upper arm 264 causes the outer column 272 and the display 166 attached thereto to rise in elevation slightly along an arcuate path as display 166 is shifted away from wall assembly 124, thereby counteracting sag of arm assembly 128 due to bending thereof from the weight of display 166. The distance ΔD by which axis A-A is located forward of axis B-B, as depicted in FIG. 12, may be varied depending on the degree and rate of rise desired for outer column 272. Generally, without limitation, distance ΔD may vary between 1/16 inch and 2 inches, the greater the distance ΔD resulting in a greater amount of vertical rise. While the present invention has been shown and described in detail, it is obvious that this invention is not to be considered as limited to the exact form disclosed, and changes in detail and construction may be made therein within the scope of the invention without departing from the spirit thereof.

Claims

CLAIMS 1. An in-wall mount for supporting a display, the in-wall mount being mountable in a wall formed in part by a plurality of studs, comprising: mount structure fixedly couplable between selected adjacent studs of the wall; and a mount base laterally shiftably operably couplable to the mount structure.

2. The mount of claim 1, the mount base being selectively shiftable between a plurality of mounting dispositions relative to the mount structure.

3. The mount of claim 1, the mount structure being a mount box.

4. The mount of claim 1, the mount structure being at least two spaced apart brackets.

5. The mount of claim 1 further including an arm assembly operably coupling the display to the mount base, the arm assembly being extendable from the mount base and elevating a mounting head as the arm assembly is extended from the mount base.

6. The mount of claim 5, the arm assembly having a first arm and a second arm, the first arm having a first coupling, the first coupling being laterally displaced from a second arm first coupling.

7. The mount of claim 6, the amount of lateral displacement being between 1/16 inch and 2 inches, as desired.

8. The mount of claim 5, the arm assembly having a first arm and a second arm, the first arm being shiftably coupled to the second arm by means of a scissors coupling.

9. The mount of claim 5, the arm assembly having a first arm and a second arm, the first arm being shorter than the second arm.

10. The mount of claim 5, the arm assembly counteracting sag caused by the cantilevered weight of the display.

11. The mount of claim 5, the arm assembly counteracting sag caused by the cantilevered weight of the display, the amount of counteraction increasing with distance from the mount base.

12. An in-wall mount for supporting a display, the in- wall mount being mountable in a wall formed in part by a plurality of studs, comprising an arm assembly operably coupling the display to a mount base, the arm assembly being extendable from the mount base and elevating a mounting head as the arm assembly is extended from the mount base.

13. The mount of claim 12, the arm assembly having a first arm and a second arm, the first arm having a first coupling, the first coupling being laterally displaced from a second arm first coupling.

14. The mount of claim 13, the amount of lateral displacement being between 1/16 inch and 2 inches, as desired.

15. The mount of claim 12, the arm assembly having a first arm and a second arm, the first arm being shiftably coupled to the second arm by means of a scissors coupling.

16. The mount of claim 12, the arm assembly having a first arm and a second arm, the first arm being shorter than the second arm.

17. The mount of claim 12, the arm assembly counteracting sag caused by the cantilevered weight of the display.

18. A method of supporting a display in a wall formed in part by a plurality of studs, comprising: fixedly coupling a mount structure between selected adjacent studs of the wall; and laterally shiftably operably couplabling a mount base to the mount structure.

19. The method of claim 18, including the mount base being selectively shiftable between a plurality of mounting dispositions relative to the mount structure.

20. The method of claim 18, including counteracting sag caused by the cantilevered weight of the display by means of an extendible arm assembly operably coupled to the mount base, the amount of counteraction increasing with distance from the mount base.