CA2529909C - Muntin clip - Google Patents

Abstract

A muntin clip has a bar support adapted to be connected to a muntin bar end and a base member adapted to be connected to a spacer frame. The bar support has a plurality of flexible support members attached thereto, which are adapted to contact the opposed interim walls of the muntin bar end and deform in response to such contact. The base member has two flexible members forming a flexible latching structure which is adapted to deform when inserted into the spacer frame. The muntin clip to be used with muntin bars and spacer frames having a range of different dimensions and configurations.

Description

(23 6703. I ) n~lN~cm c>Lrri TECHNICAL FIELD
(0001] This invention relates generally to nnmtin grids for sash window assemblies and hare speci~.cally to a nnmtin clip for positiuning the grid within a sash window.
BACKG120UND OF frl!=.INVENTION
[000] Double hung window assemblies typically include a pair of sash windows slidably mounted within a master frame. Jn the past, sash WllldOws Were provided with a ~,~rid of muntin bars, typically made of wood, that separated and held multiple palle5 Of g1f2S5 Wlthlll a SdSh.
Each pane would be mounted Within the sash in the 5amc plane. Now, double or multiple pane windows are provided, otherwise known as insulated or thernro-pane window assemblies.
These. insulated window assombli~s include a pair of glass panes mounted in parallel relation to one another within a sash frame ~ancl separated by a small distance. The panes are typically separated by a spacer frame located about a periphery of the panes. Uf course, insulated or tlaermo pane windows ate not limited to single or double hung window arrangements. Rather, ahoy have a wide range of applications that are well known in the art. Per instance, double pane windows may be incorporated in doors, picture windows, etc.
[0003] Grids formed by interconnected muntin bars are often installed between these glass pani;s of a double; pane or insulated sash window. Typically, these bids are comprised of multipic: rnuntin bars arranged in a l,2-id pattern and intercomiected at' interior intersecting points by muntin joiners. The grid is then placed between the panes of glass. The periphery of the grid is then mounted to the sash frame, or more typically, to a spacer frame scparat~ing the panes, by a series of muntin clips. It is understood that the grid colt take a variety of different fomns.
[0004] Typically, the muntin bars are of a ttlbular or hollow construCiion and a portion of the clip 1S I(:CelvC'd by an end of a muntin liar lpcated at a pzriphery of the acid. Typically, the hollow muntin bar receives an extension or bar support of the clip that is designed to fit tightly within the hollow muntin bar to effect an interference fit, thereby attaching the muntin elig to the muntin bar end. (See FIG. 3) The clip in turn is attached or comieel;ed in some way to the spacer frame. An example of a prior art muntin clip is shown in cro3s section in >;lCr. 3. The prior art mtmtin clip I includes a bar support 2, in the form of a tree, tightly sitting within and receiv4d by a muntin bar 3.
[0005] Muntin grids, including the bars, joiners and clips of which they are epmprised, come iri rtume>~ou5 shapes and sizes. Qne drawback resulting from chic fact i5 that muntin clip manufactures must design and produce a separate clip to match ouch potential si~e/shape of muntin bar available on the Inarlcet and to also snatch with a vari4ty of sizes of spacer frames.
A conservative estimate is that chore are currently at least IOU muntin clip designs available on the market to accommodate the multitude of sizGS and shapes that can be found in Che available nnmrin bars. This costs clip mannfachwers, and window manufacturers or assemblers to incur l'.OSt$ aSSOCIated with maintaining and othcrwlse dealing with large: and varied inventories of muntin clips.
[0006] FIGS. 4-~ show a spacer frame. The spacer fTtymC Typically has a lateral wall having a length C, a pair of vertical walls having a height B, and a pair of shoulders, each having a length x.. The shoulders are separated lay a distance A. As one might expect, various window designs may and do roquire variously sized spacer frames. Typically, a manufacturer u~il1 adjust the length of the lateral wall C to accommodate window designs having differing widths botvveen their multiple panes of glass. Haweve.r, for each different value of C (length of lateral or botrtom wall), the height B of the vet~tical wall and the length of tlae shoulder X remain as constants. Therefore, as the length C r~fthe tat-oral wall vanes b~twcen the various required spacer frame clcaigns, the distance A between the shoulders also varies. This distance plays a role in determining whey muntin clip may be used with a particular spacer frame.
(0007] Accordingly it sari be seen chat there are at least two factors dictating what typo or design of mnntin clip may be used in a particular window assembly. First 1s the eon~kiguration of the tnuntin bar to tae used. The second factor is the configuration of the Spacer frame. The multitude of variations available in both muntin bars and spacer flames results in the present existence of at least; 500 different mulnin clip desi~,rns currently being available. This in tuna causes clip manufacturers and window assemblers to be burdened with large clip inveritories.
[000$] The present invention is provided to solve these and other problems.
SLJMMAItY OF THE INVENTIC7N
[0009] The present invention provides a nntntin clip having an overall flexible support stnteture that allows the Clip to be connected to a plurality of muntin bars and spacer frames having a variety of sizes.

[0010] According ~U One ~Sp~L't [1f illC inVer1t101n, the muntin clip has a bar support having a plurality of Ile~cihle supporC members attached thereto, which are adapted to contact the opposed interior walls of the muntin >5ar end and deform in response to such contact.
[0a11] According to another aspect of the invention, the bar support has a Iirst set of Ilexiblo members extending outwardly from the trunk, and a second sc;t of flexible rnetnbers attached to the lrurdc and e:~tending in a direction substantially parallel to the trunk.
[0012] According to another aspect of the invention, tl7e muntin clip leas a base member attached to the bar support and having two flexible members forming a flexible latchinK
structure which is adapted to deform when inserted into the spacer frame.
[0013] According t0 another aSpeCt Qf the 111Ve11t101n, each of the flexible members has a cross-tx~ember at the free end and a pair of resilient tabs depending from the cross-member.
[D01~~ Other features and adv~untages of the invention will be apparent from the following speciticarion taken in conjunction with the following drawings.
I3hIl;P DIrSCRIPTION OF THE DRAW11VGS
[0015] To understand the present invention, it will now be described by way of example, with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of a window ussernbly includinb a muntin grid;
FICi_ 2 is a partial cross sectional view of tltc window assembly of FrG. 1 Oaken along the line z-?;
FIG. 3 is a side elevation view of a prior arl muntin clip;
FTG. 4 is a partial isometric view of a spacer fram4 according to the present invention;
FIC_'r. 5 is a cross section view of the spacor frame of FIG. 4 taken along the line 5-5 of FIG. ~;
FIG. G is a bottom perspective view of a tirst embodiment of a nwntW clip according to the present invention;
FIG. 7 is a perspective view of the muntin clip of FIG. G;
FIG. $ is a bottom view of the muntin clip of F1G. 6 FIG. 9 is a side view of the muntW clip of FiG. 6;
FIG. 10 is a fiont elevation view of the muntin clip of FIG. G;
FIG. 11 is an exploded perspective view showing the assembly of Uhe muntin clip of FIG. G and a muntin bar end (shown partially) and a spacer frame (shown partially) according to the present invention;

FIG. 12 is d broken side view showing the connection between the muntin clip, the mutatitt bar end (shown pamally) find the spacer frame (shount partially) of 1~1G. 11;
1~IG. 13 is a broken perspective view of the muntin clip, ire mutttin box end and the spacer flame of F1G. 12, the muntin Gar end and spacer tram4 shown partially;
FIG. 14 is a partial plan view of a muntin Clip aCccrrding to the present invention being inserted into a muntin bar end;
FIG. 15 is a partial perspective view of a muntin bar end according to the present inveritAc~n;
FIG. 1t~ is a perspective view of a second embodiment of a ~nturtin clip according to the present invention;
FIG. 17 is a side view of the muntin clip of FIG. 16:
FTG_ 1 ~ is a perspective view of a third embodiment of a munCin clip acCOrding to the presW t invet7tion;
FIG. 19 is a side view of the muntin clip of FIG. 18;
FIG. 20 is a perspective view of a fourth c:mbodime~t of a nnmtin clip according to the present invention;
FIG. Z 1 is a side view of the muntin clip of FIG. 20;
FIG. 22 is a perspective view of a fifth embodiment of a muntin clip accordinb to the present invention;
FIG. 23 is a side view of the muntin clip of FTG. ?L;
f'1G. 24 is a pers~peclive view of a sixth embodiment of a rrtuntin clip according to the present mvenrion;
FIG. 25 is a side view of the muntin clip of FIG. 24;
FIG. 2G is a perspective view of a seventh embodiment of a muntin clip according to the presentinvention;
FIG. 27 is a schematic view showinb a base of the muntin clip according to the present invention being inserted into a spacer frame FIG. 28 is a partial Cross Sectional view taken alonb lines A-A of FIG. 38, showing a muntin clip according to the present invention connected to a muntin bar and being pushed into a spacer frame having an opening of near minimum width;
FIG. 29 is a partial cross Sectional view taken alonb lines A-A of 1~IG. 38, Showing the muntin clip, muntttl bar, and spacer frame of FIG_ 2$ in an assembled position;

FIG. 30 is a partial cross sectional view taken along lines A-A of F1G. 3i5, showing a muntin clip according to the presi;n t invention connected to a muntin bar and being pushed into a spacer frame having an opening of slllall to inLermedlate width;
FIG- 31 is a partial cross sectional view taken along lines A-A, of F'IG. 3$, showing the muntin clip, muntiri har, arid spacer frame of FILr. 30 in an assi;ntblod position;
FIG. 32 is a partial cross sectional view tal~eri along lines A-A of l~1G. 3$, showirig a tnuntin clip aCCOrding to the pr~scnt invention connected to a nnultin Liar and being pushed into a spacer frame having an opening of int4rn14diate width;
F1G. 33 is a parrial cross sectional Vlcw talcett along hues A-A of 1;1G. 3~, showing the muntin clip, muntin bar, and spacer frame of t~IG. 32 in ari assembled position;
PIG- 34 is a crass sectional view taken slang lines A-A of FIG- 3 ~, showing a muntin clip according w the present invention connected to a nluntin bar and being puslted into a spacer trallle haVlllg an opening of intennecliate to large width;
FIG. 35 is a cross sectional view taken clang lines A~A of FIG. 3$, showing the muntin clip, muntin bar, and spacer frame of 1~1G. 34 in an assembled position;
FIG. 3G is a crow sectional view taken along lines A-A of FIG. 38, sh~~wing a muntin clip according to the present inventinn connected t0 a tllllllt111 bar atld belnL pushed into a spacer frame haVlllg an opening of nearly lllaxllnum wldtlz;
FIG. 37 is a cross sectional view tahetl a101r~ 1111C:S A-A of FIG. 38, showing fhe muntin clip, muntin bar, and spacer frame of FIG. 3d in an assembled position; and FIG- 3$ is n front elevation view of a muntin clip according to the present invention connecti;d to a tnuntin bar and a spacer frame-DETATLED DESCRIPTION
[U01G] While this invention is susceptible of embadilnerit in many different forms, tliere is shown in the drawings and will herein be described in detail preferred embodiments of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the inv~ntinn and is not intended to limit the broad aspect of the invention to the embodiments illustrated.
[0017] FIG.1 shows a sash window 12 comprised of a top sash rail I G, a base sash rail 1$
and a pair of vertical sriles 20. Altliough not shown, the sash window 12 may be mounted, slidingly or otherwise, within a master frvne, such as, in a single or double hung window arrangement as is well known in the art. t is also understood that other hardware can be incorporated into the sash window 12 as is known in flue art.
[0018] As shown in FIG. 2, each sash window 12 also includes a first pane of glass 24 and a second pane of Mass 2(~ mounted in parallel relationship to one anoUher within an interior of the sash window 12. The first and second panes 24, 2G are spaced by a spacer assembly 2$ located at a periphery of the panes ?4, 2G. The spacer assembly 28 comprises a spacer frune 30 and a s4al ox sealant 32. The spacer frame 30 is generally tubular with a rectanbular or square cross section as seen in FIG. 2. The spacer frame 30 extends a>~ottt the entire periphery of the first and second panes 24, 2G. A seal or sealant 32 is applied to an outer n:gion of the spacer frame 30. When pressed between the first and second panes 24, 2G, the spacer frame 30 forms an air tight seal betlueen the two panes 24, 2G_ [0019) A muntin grid 3~4 (PIG. 1) is positioned between the first and second panes of f;Iass 24, ?6. The muntin grid 34 is comprised of a plurality of interconnecting muntin bars 36. )each muntin bar 3G has a generally tubular and hollpw construction. Various means of inter-conncctin$ the muxztit7 barn 36 are >renown to those of ordinary skill in the art. The connecting means are not further described hereuz and any means of connecting or,jolning the martin bars 3G to one another may be utilized. As can be seen from the figures, the muntin bars 3G are so interconnected to farm a 8rid 34 which is positioned between the first and second panes of glass Z4, ?Ca. Fxt4nding towards and located at a periphery of zlaC 8rid 34 are a phtrality of muntin bar ends 38. It is understood that the grid 34 can take a variety of forlns_ [0020] FIGS. 4-5 depict the spacer Frame; 30. FIG. 4 shows only a pouion of the length of the spacer frame 30. It can be seen that the spacer frame is ~rnerally U-shaped and includes a lateral wall SG and a pair vfvertical walls 58 extending in the same direction from the lateral wall 56. )each vertical wall 58 includes an inwardly extending shoulder GO
located dear an end of its respectYVe vertical wall 58 distal from the lateral wall SG. The shoulders 60 are separated by a distance A, defining an elongated opening 57 in the top of the spacer frame 30. The vertical walls S$ each have a height B. The lateral wall SG has a k:ngth C and the shoulders 60 each have a length X. Spaced along a lenbth of an inner cd8e of the shoulders 60 are a plurality of notches 62 (FIG. 4) adapted to receive the mount structure 104 of the clip 100, to be explained. It can be seen that eactl notch 62 00 one shoulder GO is generally opposed from a coiTesponding notch 6Z on the other shoulder G0. The; opposCd notches G2 form a pair of notches G4. It can also be seen that two notch gaits 64 are usually located in proximity to one mother. It is tmderstood that the two notch pairs G4 are but one preferred embodiment.

[0021] A typical muntin bar end 3S is shown in FIU. 15, and includes opposed side walls 37 spaced by a distance W and opposed lateral walls 39 sgaced by a distance T.
haeh muntin bar end 3S is normally hollow and rectangular (although other shapes are possible), and has an interior cavity 40 with interior walls 37a and interior walls 39a funned by opposed side walls 37 and opposed lateral walls 39 respectivel.y_ Tl7e ir~ttntill bar 3G lnay have a solid peripheral st111cnlre or formed from a flat sebmr4nt of material and folded into a tubular strucirue. In such conl'agrzration, the muntin bar 3G has an open seam extending along a length n.f tl'te bar 36_ [0022] A tnuntin clip 100 mounts each rnuntin bar end 38 to the sash window 12, to be cxplained_ Qne preferred embodiment of the n runtin clip 1 UO according to thi: present invention is illustrated in 1~1GS. G-10. teach muntin clip 100 includes a base or base member 102 and a bar support lOG. The base 102 is adapted to me>unt the clip 100 to the spacer hame 3(t, and the bar support 1 OG is adapted to comrect' the clip 100 t~7 il7e 171Li1rt11r bar end 38. As explained i11 greater detail below, the base lU2 and bar suppbrt 106 each have flexible latching or support structure that enhances the eonneetability cf the nnmtin clip 1L?0 to the spacer frame 30 and the muntin bar end 3a.
[0023] The bar support 106 i5 adapted to be inserted in the interior cavity 40 of the hollow mtlntin bar end 3$ to support the muntin bar w~itlrin the muntin ~zid 34.
Prcfi;rably, the bar support lOG hts relatively tightly within the muntin bar end 38_ The preferred embodiment; of the bar support lOG is shown in PIUS. G-10 and includes a truck 11G extending from the base I 02 and a plurality of flexible nmnk members 121 extending from tire tlmk.
Among these Ilexible mernbers are flexible fingers 1.22 extending outwardly from the trunk 116, and flexible arnrs 123 extending alongside the trunk 116. The trui~lc 1 t 6 has a first end 118 attached to the base 102 and a second end 1?0 distal from the base I 02. In the preferred embodiment, the trunk 11G also has a central hub 117 from which a plurality of the flexible members 121 project.
Preferably, the trunk 11G is constructed thickly so that it is sufl'~ciently rigid to support the muntin bar 3G. It is further understood that the central hub 117 could be defined in $lternative configurations such that in one embodiment, ore flexible fingers 122 extend from the central hub l 17, and in another eltabodiment, the flexible 'fingers 122 extend fiom the flexible arms 123.
[0024] The preferred bar support 106 is shown in F1GS- G,10 and has four flexible fingers 122 extcmdin~; outwardly from the tnlnk 11G. These flexible fingers 122 can be considered a i'irst, second, third, and fourth flexible tnurlc members 121. leach flexible.
finl;er 122 has a fixed end 124 attached to the tnxnk 116 and a free end 12G extending; outwardly from the trunk 116.
The fingers 122 are preferably flexible and deflectable, yet resilient. This structure permits each free end 12G to flex towards and away from the murk 11 G. In the pr~terred embodiment, twa flexible fingers 1 Z? extend from the trunk 11G in opposed directions proximate the second end 120 of the trunk 11 G, and two flexible finl;ers 122 oxtend in opposed directions From the central hub 117 of the trunk 11 G. The Angers 1?2 preferably sxtend at least an appreciable distance generally perpendicularly outward from the trtulk 116. and all the Cm~ers 122 preferably extend within a general plane. Additionally, the fingers 122 preferably extend at least slightly downward (i.e. t:oward the base IU?), which facilitates flexing and insertion of the bar suppolrt IOG llat0 the mlllltlll bar end 3$. When the bar support 10G is inserted into the muntin bar end 3$, the lingers 122 contact one pair of the opposed interior walls 37a of the munrin bar end 3M and substantially deflect, flexing inwardly and downwardly, in response to the contact, as described in ~,~reater detail bolow'. Tlte flexible fingers 1ZZ extend a distance past the flexible auras 1?3 and generally to an outs~r lateral dimension defined by base 1C12.
[0025] In alternate embodiments, the' bar support l UG may have a greater or fewer number of fingers 122. For example, the bar suppol~ Ci0C5 in FIGS. 24-25 has only two fingers G22 projecting from the distal end 620 of the ttulal: G 16. Further, the fingers 12Z may be longer or shorter, as and may extend at a greater or lesser downward angle than those shown, In addition, the material used to form the clip 100 can be varled to Control the deflcetability, resiliency, or overall flexibility of the flexible members 122,123, In cane preferred embodiment, the clip 100 is fanned from plastic in an injection-molded proi;css. It is understood that a variety of other materials can be utilized.
[002b] The preferred bar support lOG has four flexible arms 123 extending from the Central hub 117 a.f the trunk I 16 and alongside the n~lnk 11 G. These flexible arms 123 can be considered a first, second, third, and fourth flexible trtmk members 121. In other embodiments, such as the embodiment 400 shown fu FIGS. 20-21, two of the inns 423 are attached proximate the distal end 420 of the mnak 416, and two of the arms 423 are attached to the central hub 417. hl any case, the arms 123 are preferably substantially parallel to the trunk I 16, extending a short distance away from the trtulk 116 and then angling sbarply to rtln nearly parallel to the wullc 11G. Two of the anus 123 point upward (i.e. away From the base 1 U2), and two of the anus 123 point downward (i.e. toward the base 102). In one preferred embodiment (FIGS. G-10), two of the arms 123 point toward one of the pairs Of angers 122, and the other two arms 123 palm away from one of the pairs of fm~ers 122.
X0027] As may be seen in F1G. 9, a portion of each ann 123 preferably protrudes out ofthe central plane occupied by the trulalc 116 and finl;c:m 122, discussed above.
In other wards, a portion of each arm 123 protntdes in a direction that is n-ansverse to the directions in which the tnmk l lfi and the fingers 122 extend. In the prefewed embodiment, each ann 123 contains a projection 127 protruding relatively perpendicularly outward from the tip.
Thus, each projection 127 preferably protrudes in a direction that is transverse to the directions in which the truffle 116 and the fingers 122 o:vend. These projections 127 each preferably contain a beveled portion 125 faein~; upward (i.G. away .Cram the base 102), to prevent snagging when the bsr support 106 is inserted into the nnmtin bar c:nd 3Fs. It: is understood that the projection and beveled portion When the bar support 106 is inserted into the muntin bar end 3$, the projections 122 contact one pair of ills opposed interior walls 39a of the muntin bar end 38, and generally not the pair of interior walls 37a contacted by the fingers 122_ In response to this contact, thi: arms 123 substantially deflect, flexing inwardly, as described in ~,~reatcr detail below.
[402$] Generally, some of the arms 123 have a portion protruding in one direction and same of the aims 123 have a portion pronwding in the opposite diri;etion~
creating a balance of pressure on the interior' walls of the lnutatiit bar end 38. ror reference purpos~;s, the arms 123 can be divided into "sets" based on the direction in which the respective projections I27 thereon project. Generally, as shown with reference to FIGS. 7 and 9-10, the bar support 106 will have one sot 123a of arms 123 having forward-facing projections and one scl lZ3b of arms 123 having rearward-facing projections. In the preferred embodiment, illustrated in FIGS_ 6-10, the two arms 123 of each set are located cater-comer fi-om each other. Por ~xatr~ple, with reference to rIGS_ 7 and 9-10, one set of cater-corner arnis 123a have projections 127 facing forward, and the other set of cater-corner anus 123b have projections l27 facing rearward.
In other words, in FIG. 10, if one were to schematically draw or envision a line between the projections I27 o~the arms 123a of the first set and a separate Iine between the projections 127 of the anus I23b of the second set, the two lines world tend to form an 'X'. The embodiments 200,400 shown in FIGS. 1G-17 aiad FICTS. 20-21 contain a sitxiilar arrangement. In the emboditneuts 300,500 shown in F~GS_ 18-19 and FICTS. 22-23, the arms 323,523 of each set are located adjacent each other. The set of arms 323a,523a located closest to the base 302,502 have forward-facing projections 32.7,527, and the set ofarms 323b,SZ3b located farthest from the base 302,502 have rearward-facing projections 327,5?7. Additionally, the arms 123 are preferably slightly offset with respect to each other in the direction of such protrusion, to allow ample room for the amps 123 to flex. For example, as shown in FIGS. 7 and 9, the arms 123a of the first set are offset to one side of the tntnk 116, and the arms 123 b of the second set are offset to the opposiee side of the trunk 1 I f~.

[DD29j In an altemxte embodiment, the arms 123 may be connected to tltc wfingers 122, rather than existing as a separate structure. Thus, the foyers 122 may contain flexible structure that is adapted to contact both sets of interior walls 37a,39a of the muntin bar end 3$ to stabilize and support the tnuntitt liar end 3$. The arrangements of flexible trunk members 121, such as the flexible arms 123 and flexiblo rngi;rs 122 can b4 considered :~ means for bracing the two pair's of opposed inner walls 37a,3Oa of the muutin bar end 3E.
[0030] Tlre prefewed base 102 is illustrated in FIGS. G-10 and includes a bar stop 10$ and a plug 109 positioned proximate the bar support 106. The bar stop 10$ is desi~med to abut the muntin bar eud 3$ when the bar support 24G is inserted therein, in order to prevent the remainder of the base 142 from entering the trtuntin bar end 38. It is preferably wid4r than the widest portion of the bar support l OG. The plug 109 connects the base 102 to the bar support lOG anal is also adapted to be inserted into the muntin bar i;nd 3$.
[0031] The preferred base 102 lra$ $ Celltral b10C1C 11 l and also has a mount structure 10d.
drat includGS a means for conni;eting tlv: base 14? to a variety of different spacer frames 30.
The mount structure 104 preferably includes a flexible latch snmchue 110 attached to the central block 111, and is generally Cunsidi;r4d to be connected to the base 102 of tEre muritin clip 100. Tlle flexible latel7 structure 110 is adapted to flex inward when the base 142 is inserted into the spacer frame 30, and to connect the muntin clip 100 to the spacer frame 30, as described below. The flexible latch stn~cture 110 preferabl y includes two flexible members 17 2 that i;ngage the spacer frame 34, one extending from each sici~ of the central block 111. The flexible members 11 Z preferably are attached at the bottom of the central block 111 and curve or ankle upward and out4vard, forming a U-shape or a V-shape when viewed from the side {FIG. 9). This shape facilitates insertion of the base 102 into the spacer frame 30. In other embodiments, the llexibie members 112 may be attached at another point on tile base 102. Por example, in one embodiment the flexible members 112 are attached proximate the top of the central block 111 and trove downward and then back upward, so that each flexible member forms a U~shape or a V-shape. It is understood that the flexible members 112 are flexible with respect to both the base 102 and the bar support 10G, and are flexible in either direction, i.e., inwardly and outwardly from the base 102 and bar. suppon ! 0G_ Additionally, the flexible members 112 are able to engage the spacer frame, preferably by latching onto the shoulders GO
of the spacer frame 30. As illustrated in FIGS. G-10, the flexible member 112 preferably has a sirrl;le flexible stem 115 connecting the cross-member 1 i3 and resilient tabs 114 to the central block 111. In other embodiments, the flexible member 112 may have more than one flexible stem 115. It is understood that the benefits of the invention can be observed witli a single flexible member 112, although a pair of t7exible members 112 is prc;ferri:d.
The; fh:xible members 112 preferably each have two resilient tabs 114 thereon, as well as a cross-member 113 extending a~~rass the free end 11 ?a of the fluxilal~ rneml7er 112.
[003Z] The preferred resilient tabs 1 1:1 are Zest illusuated in FIGS. G-I0, and are the preferred mechanism for latching of the flexible member 112 to the spacer Name 30. Ln the preferred embodiment, each flexi>ale memlaer 112 has a pair of resilient tabs 114 attached at the free c;nd l lZa of the flexible member 112 that face along the direction of the cross-member 113 and the fingers 1Z2, as best illusu-ated in FIGS. 8 and 10. Each tab I 14 preferably depends ti'om the flexible member 112, but has an upturned pat~tion 114a angling outwardly and back toward the cross-rnemh~r 113. This orientation allows the tabs 114 to latch atno the sides of the notches 62 in the shoulder C~0 of the spacer name 30, as Shawn in PTCTS. 12, 29, 31, 33, 35, and 37. Additionally, as shown in rIGS. $ and ~, the upturned portion 114a of each tab 114 is angled, WhlCh S4'IVGS at least a dual function. hirst, the angling permits the tab 1.14 to slide more easily into the slot 62 Evhen the ease lOZ is inserted into thc; 3paci:r frame; 30, as illustt'ated in FIGS. ?b, 30, 32, 34, and 3(i. second, the upturned portion 114a also angles so that the tab 114 becomes wider as the upturned portion 114a aphroachcs thi: crass..meml5er, allowing for a larger latching surface, which in turn a110~.~~s tile Ilexible men'ther 112 to latch onto a wider variety of spacer frames 30. Generally. the tabs 114 ari; considered to be attached to the flexible member 112. Tlie resilient tabs I 14 in the prrferted embodiment depend from the cross-member 113, but may be differently posiuon4d on the tease 102_ Futrther, a portion of the cross-member 113 preferably hangs over the upturned portion I 14a of'eaeh tab 114 to create a more secure latching action_ However, in some embodiments, the tabs 114 hang frtvly from the ouCer edges of the flexi171e member 112 with no crogg~member 113 extending over tha top.
[0033] Additionally, the tabs 114 may be configured or oriented differently_ As shown in one preferred embodiment, the tabs 114 arc: preferably oriented to face in a direction transverse to the flexible lnc:mber 11Z, and along the direction of the cross-member I
I3. In other words, the resilient tabs 114 face generally in the same direction as the flexible fingers 122. Further, each pair of tabs 114 on a particular flexible member 112 preferably face away from each other.
However, the tabs 114 may be turned 90 degrees to face more outwardly, in the direction of flexing of the flexible members 112. Thus, the resilient tabs 114 would face in the same direction as the projections 1Z7. 5ti11 further, the tabs 114 may face inwardly along the direction of the cross~member, so that the tabs 114 of each pair face each other, as opposed to faCirig outwardly and away from each other (FIG. 10). The latching structure 110 may contain a greater dg smaller number of tabs 1 I4, and the tabs 114 may be shaped differently_ For example, the angled, upturned portion 114a may not be nocessaiy irr all embodiments. In other embodiments, the latch stntcntre 110 may have no resilient tabs 114, and rtray latch onto the spacer flame 30 by a di:Cfercnt method. Fnr example, the flexible member 112 could cooperate with a shouldi;r portion G7 (Pi(_r. 4) of the spacer frame 30 That is positioned l.~ctvreen the notches 62. Thi; fl4xible menther 112 may also include a tab that engages an utrderside of the shoulder portion Ci7.
[0034] As shown in 1~1GS. 1i-10, the tabs 114 and cross-members 113 are positioned at a distance from the bar support 1 OG and the base 102, due to the out4vardly-extending nahtre Of the flexible members 112. Also, due to the flexible naftue of the flexible members 11Z, the tabs 114 and the cross-members 113 are moveable with respect to both the bar support 106 and the central block 111 of the base 102. Furth4r, l~~cause both the tabs 114 and the llcxible arms 112 can flex or pivot independently and in separat4 dircctior~s, the tabs 114 art considc;rvd to be flexible and moveable in at least two directions.
[0035] To assemble a sash w~indo~~ 12 incorporating a muntin grid 34 utrhzmg a clip 100 and muntin bar 36 according to the present invention. the spacer assembly 28 is formed according to any tnetlrod currently larown in tht art. Then the nnintin ~,u.Zd 34 is assembled by joining a plurality of muntin bars 3G to one another to form a grid shape.
Typically, the grid is generally rectangular, but it is understood that the ~ic'l may take other shapes as well. Then a muntin clip 100 is attached to the grid 34 at each nruntin bar end 3$ located near a periphery of the overall grid 34.
(0036] FIG. 11 illustrates the way in which the clip 100 is connected to the nruntin bar end 3$, urdicated by the arrows. To attach the clip l00 to the muntin bar end 38, the bar support 106 is inserted into the generally hollow mttntin tsar end 3$. 'the bar support 106 will be typically inserted hrto the nmntin bar end 38 until the entire plug 109 is substanvally located within the end 38. When the bar support; 106 is irtserCed into dre muntin bar end 3$, the angers 122 contact one pair of the opposed interior walls 37a of the n~mntin bar end 3$ and substantially deflect, flexing inwardly and downwardly, in response to the contact. r.ilcewise, and as shown in FIG. 12, the projections 123 contact the other pair o .f the ppposed interior walls 39a of the muntin bar end 3$. In response to this contact, the arms 123 substantially defiled, flexing inwardly. The dow:~ward angle of the fingers 122, as well a5 the beveled portions 125 near the projections 127, allow tire bar support 106 to slide more easily into the muntin bar end 38. Thus, there is substantial deflection of the flexible fingers 122 and the flexible arms 124 providing an entranced fit as opposed to the ht provided by prior an muntin clips such as shown in )SIG. 3. The arms 123 and filrgers 122 provide a firm connection with the tnuntin bar 3G that resists twisting or bending of the muntitr bar 3G, as descrtlaed in greater detail below.
[0037] FIG. 11 also illustrates the way in which the clip 100 is connected to the spacer frame 3 S, indicated by the arrows. Additionally, FIGS. 28, 30, 32, 34, and 36 illustrate the base 102 being inserted into a variety of different spacer flames 30a, 30b, 30c, 30d, 30e and FIGS.
29, 31, 33, 35, and 37 illusn-ate the base 102 after com~ection to these spacer frames 30a, 30b, 30c, 30d, 30e. To attach the clip 100 to the muntin bar end 3S, the base is inserted into the opening 57 in the spacer frame 30_ The shoulders GO contact the flexible members 112 of the latch stmcmre 110 and cattle the flexible members I 12 to flex inwardly, shown in 28, 30, and 32. As the base 102 is pushed downward, the f.Icx,ibIe metrtbers 112 continue to flex until the resilient tabs 1 l4 slip completely into lho notch4s 62 and engage the Shoulders GO of the spacer frame 30, shown in P1GS. ?9, 31, 33, 35, and 37. At that point, the flexible members 112 get7erally snap slightly 1'sck outward. Preferably, the resilient tabs 114 also flex inward slightly as the vase 10? is inserl4d, until the point that the tabs 114 clear the shoulder GO of the spacer frame 30. It is understood then that the resi)ietlt tabs 1 l4 engage the underside surfaces of the shoulder 60 proximate the notches G2. l~h~ Cr0$S 117111117~rS 1 13 contact tl7e top of the shoulders G0 to ensure that the base 102 cannot he inserted too far into the spacer frame 30, as shown in FIGS. 12-13. Altematc;ly, the latch s~mccure 110 may have no resilient tabs 11.4, and rnay have n different stmctttre to latch onto or otherwise engage the spacer frame 30.
Particularly, the latch structure 110 nzay have no component that slips into notches G2 in the spacer frame 30, and rrtay simply latch onto the shoulders b0 by other interference or latching stn~ctures.
[0038] FIGS_ 12-13 and 38 illustrate the assembled muntin bar end 38, ruunun clip 100, and spacer frlrrre 30. The fingers 1?? are in contact with the interior side walls 37a and are substantially deflected or deformed downward and inward in response to such contact.
h,ihewise, the arms 123 are in contact with the interior lateral walls 39a, and are substantially de'Ilected or deformed inward in response to such contact. fhe resilient nature of the f~rtgers 122 and the arms 123 results in pressure being exeued on the interior side walls 37a,39a of the muntin bar end 38 by the fingers and anus 123, securing the muntin bar end 3$
to the clip 100 and stabilizing the muntin bar 3G. Further, the pressure exeirted on the lateral walls 39a by the flexible arms 123 resists torque apgli~d to the muntin bar 36. Two of the arms 123 would tend to oppose rotation of the muntin bar end 3 $ in one direction while the other two awls 123 would tend to oppose rotation of the nnultin bar end 38 in an opposed direction ofrotstion_ In other words, the arms 123 provide four-point opposed contact with the itlner lateral walls 39a of the muntin bar end. Additionally, when the base I02 is inserted into the spacer frame, portions of the shoulders GO of the spacer frame are positioned bettveen the resilient tabs 114 and thir cross-members 11.3. Tlte resilient tabs 114 are preferably each received in one of the notches 62 on the shoulders GO of the spacer name 30. This alTangi:ment allows the base 102 to latch onto the spacer f7tame arid allows the clip 100 to hold, support, position, and stabilize the mtlntin bar 3G. Also, the arrangement of the tabs 114 and the notches G2 prevents the clip 100 frottt moving or sliding, on the spacer frami:. however, other strictures can be employed to prevent such movement in place of ~:he tabs 114 and notches G2.
[0039] It can be seen that the flexible nah~re of the Fngers 122 will fimction to maintain the bar 3G centered about the bar support lOC specif canny and the overall clip I00, gwerally. The ilexible nature of the fingers 1?2 also permits th4 clip 100 to accommodate muntin bar ends 38 having any width W within a wide range of widChs. So long as the lnuntin bar end 38 has a sufficient width W to permit the bar support lOG t:a b4 inserted into the end 3$, and so long as the free e.nrls 12G are able to engage the opposed side walls 37, the clip 100 play be used with that particular muntin bar 3C;, Thi; width W may range from the Cllstance W 1 between free ends 126 of the fngers 122 in an untdexed position and the distance W? between the Cree el7ds 12G in a fully flexed position as schematically represented in 1 lti. 14. The Wldth Of the ottcermost edges of the arms 123 may also limit the 111117111111111 S1L,4 Of suitable muntin bar ends 3$. In this way, the overall bar support stntcnlre 10G 111Ch1d111~ the :(Icxible lingers 12Z permits the clip 100 to accommoclatt a variety of muntin bar ends 38, as previously stated.
Similarly, the resilient nature of the arms 123 permits the clip I 00 to accommodate muntln bar ends 3$
having a vaxiety of thiclaiesses T. Accordingly, and unlike with previously lmown clips, one clip 100 according to the present invention may be used wil:h any number of muntiu bar 36 designs.
[0010] Similarly, the latch stmcttwe or mechanism 11U functions to maintain the bar 3B in position on the spacer $ame 30, and the flexible nature of the latch smlcture 110 permits the clip 100 to acconnnodate spacer frames with openings 57 of fury width A within a range of widths. So Iong as the shoulders GO of the spacer frame have a sufficient distance A between them to permit the base 102 to be inserted into the spacer frame 30, and so long as the ands of the latch mechanism 110 are able to engage the shoulders G0, the clip 100 may be used with that particular spacer fratre 30. The width A may range from the distance A' betwcCn the ends of the flexible members 112 in an unllexed position and the distance A" between the ends of the flexible members in a fully flexed position, as shown in FIG. 27. 1 IGS. 2$
and 29 illustrate the insertion of the base 102 into a spacer frame 30a having an opening of nearly minimum width A. The flexible members 112 are deflected a great deal in F1G. 2$, and have little room to flex farther inward. It is understood that a separate stop stl~.leture could be incorporated into the t~
Ease 102 to prevent Ile;xion of the Flexible mc;mhers 112 as desired. FIGS. 30 and 3l illustrate the il>aserlion of the base 102 into a spacer frame 30b having an opening of small t0 intermediate width A. FIGS. 32 and 33 illustrate the insertion of the base lUZ into a spacer frame 3Uc having an opening of intermediate width A. F1GS. _i4 and 3 S illustrate the insertion of the base 102 into a spacer frame 30d having an opening 0:f itltermediatc to large width A.
FICaS. 3G and 37 illustrate the insertion of the base into a spacer frame. 3Ue ltaving an opening of nearly maximum width A. Th4 flexible m4mbers 11~ aIC' 114:1r1y 7T1 the Lllltlexed pOSlt1011 lIl FIG. 37, representing nearly the largest width A over which the latch structure 110 eau spar.
[004x] Accordingly, and tuLlihe with previously known clips, one clip 100 according to the present invention rrlay be used with any number of spacer frame 30 designs.
Also, a plurality of similarly structured clips 100 may be used to cover an even broader range of spacer frame 3U
designs. In one pr4fc:rrod embodiment, the muntin clip 1. ()Q can be used with spacer frames having a lateral wall dimension C from generally 0.2 inches to 0.9 inches. It is fiLrther understood that spacer frames 3U having a valyin~; width A, such as if the length of the shoulders GO changes. Cxenerally, it is understood that the clip 100 can be consuutcted.to be used in spacer frames 30 of practically infinite sites. As such, c;ach Clip 100 can he used with a plurality of different sized spacer frames 30 and tnltlltill liars 3G bocattse ~~Fthe flexible support or latching structure employed.
[0042] Generally, tile lnuntin ~,rrid 34 is assemhli;d by fu;st attaching a muntin clip 100 to each muntin bar end 3S, and then attacllinb the overall muntin grid 34 to the spacer dame 30.
This is accomplished by orienting the overall grid 34 such that each mulltin clip lUU attached to the grid 34. is located near one set of t'.vo notch pairs G4. The clips 100 are then inserted irita the spacer frame 30. It is understood that in certain embodiments and modiFeations, this order could be reversed. pace each of the mutltin clips 100 of eRCh nntntin bar end 38 is attached to the spacer frame 30 in this manner, the overall did 34 is positioned within the plane defined by the spacer frame 30. The panes 24, 26 may be assembled to the spacer frame assc;mbly 28, which in tum nlay bo installed into a sash window 12 in any known manner.
[0043 A second preferred embodiment of a nnmtin clip accordinb to the present invention is shown in FIGS. 16-17 and generally designated with the reference numeral 200. Each of the above described feantres, benefits, assembly and operation o:f the clip 1 UU
shown in FIGS. 6-10 is similarly applicable to the clip 200 of FIGS. 1 G~17, and is referred to using reference series Zxx, rather tlmtl lxx, which is used to reference; the f. rst embodiment shown in FIGS. 6-I0. A
difference between the clip 200 in PIGS. 16-17 and the clip 100 shown in FIGS.
6-10 is that the Clip 200 of the second embodiment is shorter in length and has slightly greater thickness in the 1 (7 tntnlc 216, fngers 222, arms 223, and flexible membera Zl 2 than the clip 100 of thv first embodiment. Additionally, two of the arms 223 of the clip 200 of the second em>aodiment have angled pouions 225 b~nealh tl7e adjacent fingers 222 to allow the fingers 222 a greater freedorin of movement before thc;y contact the arms 223. The central huh 217 is also a more pronounced structure.
[0044) A third preferred embodiment of a muntin clip according to the present invention is Sh4W11 n1 FIGS. 1$-1~ and generally desig~tated with tyre reference nmneral 300. Each of the abo~TC described featuros, benr:bts, assembly and operarion of the clip 100 shown in 1~IGS. 4-10 is applicable to the clip 300 of FIGS_ 1~~19, attd is refetTeCl to ttsing reference series 3xx, rather than lxx. A difference b4tw~:en the clip 300 and the clip 100 shown in PIGS. G-10 is in the Arran getnent of the amts 323. In the third clip enWodimenL 300, as described above, chc; flexible arms 323 of each set are located adjacent earl other, rather than cater-corner. The set of aims 323a located closest to the base 302 have forward-facing pxojectioa~s 327, and the set of arms 323b locatc;d fartl2est from the base 30Z have rearward-facing projections 327. Other components are Sul)stal7tlally identical. It is understc~nci when the clip 300 is iriserted into the rnuntin bar 36, the arms 323a having the fot~,vard-facing projections 327 engage onG wall oftlae muntin bar 36, and the arms 3231 laving the rearward-facing pr~jectio115 327 engage art opposite wall of the muntin bar 36 as can he understood fiom tho pr4vious description above.
Thus, one set of arms 323a provide a force in one direction and one set of arms provide a farce in another direction.
[0045) A fourth preferred embodiment of a muntin clip according to the present invention is shown in FIGS. z0-21 and generally desiyated with the referenec numeral 400.
Each of the above dcscxibed features, benefits, assembly and operation of the clip 100 shown in FIGS. G-10 i5 similarly applicable to the Clip 400 if. PJGS. ?0-21, and is referred to using reference series 4xx, rather than lxx. A difFerence bctwrezt the clip 400 and the clip 100 shown in FIGS. G-10 is in the arrangement of the arms 423. In the fourth clip embodiment 400, two of the arms 423 are attached to the tnuilc 416 praximaG: the distal end 420 of the trunk 416, thus depending downwardly, and two of the arms 423 are attached to the central hub 417, also dependiing downwardly. In cantrasc, W the first embodiment 100, all four arms 123 are attached to the trunk 116 praximatv the Central hub 117. The projections 427 are also arranged an sets of the anus 423 to provide opposing forces. ~ihu~r eomponeots are substantially identical.
[004GJ A fifth preferred embodiment of a muntin clip according to the present invention is shown in FIGS. 22-23 and generally designated with the reference numeral 500.
Each of the above described features, benefits, assembly and operation of the clip 100 shown 1n PIGS_ G-10 are applicable to tha clip 500 of );1GS. 22-23, and is referred to using reference series Sxx, rather than Ixx. 11 difTerences between the clip 500 and the clip 100 shown in PIGS. G~10 is in the arrangement of the arms 523, In the fifth clip embodiment 500, rivo of the arms 523 are attached to the nlnrl: SIG proximate the distal end 520 of the tnulk S 1G, and depend downwaz~dly, and W o of the arms 523 are accached to the central hub 517 and depand dovmwardly, similarly to the l:ollrth Chp en71?Odln'1e17t '-~0O deSCrlbBd above. Additionally, in the fifth clip embodiment 500, as described above, the arms 523 of each set are located adjacent each other, rather than cater~corner. Tlte set o:f an»s 523a located closest to the base 502 have forward-facing projections 527, and the s4t of arms 5231a located fauhest ti~om the base SOZ
have reawatd-facing projections 527. Tlle projections 5?7 of the sets of arms 523 pravide opposing forces. Other components are substantially identical.
[UU47J Another embodiment of a muntin clip according to the present invention is shown in FIGS. 2~-25 and generally designated with the rcferencc numeral G00_ Most of the above described feattwes, benefits, assembly and operation o.f the clip 100 shown i.n fIGS. G=10 are applicable to the clip G00 of FIGS. Z.~-2 5, and are referred to using reference series Gxx, rather than lxx. A difference between the sixth clip embodiment GOU and the clip 100 shoum in FIGS.
G-IU is that the bar support GUG ofthe clip (i00 contains only two fingers GZ2, which are located proximate the distal end G20 of the trunk G 1 G and are angled fairther downward than the fingers 122 of the first clip embodiment 100. Additionally, the: rngers G22 have rounded ends G2G, unlike the fingers 123 of the first enibodiment IUO. hurlher, the: sixth clip embodiment G00 contains no flexible anus extending along the tmnk G 1 G that project transversely to the trluik G 1 G and the fingers G 22.
[0U4$) Still another embodiment of a muntin clip according to the present invention is shown in FIG. 2G and generally designated with the reference numeral 700. Most of the above described features, benefits, assembly and operation of the clip 100 shown in FIGS. G~10 ate similarly present in the clip 700 oFFIG. 2G, and are referred to using reference series 7xx, rathc,~r than lxx. Like the sixth clip embodiment 600, a difference between the seventh clip embodiment 700 and the clip 100 shown in FIGS. G-10 is that the bar support 70G of the clip 700 contains only two finders 722, which are located proximate the distal end 720 of the trunk 71G and are angled farther downward than the fingers 122 of the first clip embodiment 100.
Additionally, the fingers 722 have rotirided ends 72G, Iike the; fmf;ers GZZ
of the sixth embodiment 600, but unlike the fingers 123 of the first embodiment 100.
However, unlike the sixth embodiment G00, the seventh clip embodiment contains flexible anus 723 projecting in the carne cater-corner arrangement as the anus i23 of the first clip embodiment 100.

1 ~i [0049] Each of the alternate embodimc:-rtcs of the clip 200, 300, X00, 500, G00, 700 is used and assemLled with the rnuntin bar end 38 and spacer fianle 30 in the manner described above with respect to the first clip exnl~odiment 100.
[ODSD] '1 he flexible components of tile bar support of the muntin clips descrived above permit a single clip to be connected to any of a variety of different mttntiit bars having a variety of different dimensions and conf burations. Similarly, the flexible latch structure of the base permits a single clip to be connected to any of a variety of different spacer .frames hamng a variety of different dimensions and confi~mrations, and having openings of a variety of different widths. Tllus, with the muutin clips as described above. the mtmber of differently-sized rnuntin clips can be drastically reduced. This reduces inventory c«sts, additional tooling costs, and other costs associated with having to manufacture and store a large. numlaer of differently sized muntin clips. In addition, the number of spacer frame assemblies can be reduce~l_ [0051] While the: specific cmbadiments and various details tltc:r4of haue been illustrated az~d described, numerous modifications come to mind without signif candy departing from the spirit of Lhe invention and the scope ofprotection is only limited by the following claims.

Claims (20)

19WHAT IS CLAIMED IS:

1. A muntin clip assembly adapted to be connected to a muntin bar end and a spacer frame, the assembly comprising:
a base member having a mounting structure adapted to be connected to the spacer frame; and a bar support extending from the base member and adapted to be connected to the muntin bar end, the bar support having a trunk, a first group of flexible members extending outwardly from the trunk, and a second group of flexible members attached to the trunk and extending in a direction substantially parallel to the trunk.

2. The muntin clip assembly of claim 1, wherein the bar support is adapted to be inserted into an opening in the muntin bar end, and the first group of flexible members and the second group of flexible members are adapted to substantially deflect when the bar support is inserted into the muntin bar end.

3. The muntin clip assembly of claim 1, wherein the first group of flexible members comprises a first flexible finger extending outwardly from a first side of the trunk and a second flexible finger extending outwardly from a second side of the trunk, the second side of the trunk being opposed to the first side.

4. The muntin clip assembly of claim 3, wherein the trunk has a first end attached to the base and a second end distal from the base, and the first flexible finger and the second flexible finger extend outwardly from the trunk proximate the second end.

5. The muntin clip assembly of claim 3, wherein the first group of flexible members further comprises a third flexible finger extending outwardly from the first side of the trunk and a fourth flexible finger extending outwardly from the second side of the trunk.

6. The muntin clip assembly of claim 5, wherein the trunk has a first end attached to the base, a second end distal from the base, and a central hub between the first and second ends, the first flexible finger and the second flexible finger extend outwardly from the trunk proximate the second end, and the third flexible finger and the fourth flexible finger extend outwardly from the trunk proximate the central hub.

7. The muntin clip assembly of claim 1, wherein the second goup of flexible members comprises a first flexible arm attached to a first side of the trunk and a second flexible arm attached to a second side of the trunk, the second side of the trunk being opposed to the first side.

8. The muntin clip assembly of claim 7, wherein the second group of flexible members further comprises a third flexible arm attached to the first side of the trunk and a fourth flexible arm attached to the second side of the trunk.

9. The muntin clip assembly of claim 7, wherein the first flexible arm has a first projection thereon, and the second flexible arm has a second projection thereon.

10. The muntin clip assembly of claim 1, wherein the second group of flexible members comprises a first flexible arm having a first projection thereon protruding in a first direction transverse to the trunk, a second flexible arm having a second projection thereon protruding in a second direction transverse to the trunk and opposite to the first direction, a third flexible arm having a third projection thereon protruding in the first direction, and a fourth flexible arm having a fourth projection thereon protruding the second direction.

11. The muntin clip assembly of claim 10, wherein the first flexible arm and the third flexible arm are located in a cater-corner arrangement about the trunk and the second flexible arm and the fourth flexible arm are located in a cater-corner arrangement about the trunk.

12. The muntin clip assembly of claim 10, wherein the trunk has a first end attached to the base, a second end distal from the base, and a central hub between the first and second ends, and the first, second, third, and fourth flexible arms are attached to the trunk proximate the central hub.

13. The muntin clip assembly of claim 12, wherein the first and second flexible arms extend in a direction substantially parallel to the trunk and toward the second end, and the third and fourth flexible arms extend in a direction substantially parallel to the trunk and toward the first end.

14. The muntin clip assembly of claim 12, wherein the first and third flexible arms extend in a direction substantially parallel to the trunk and toward the second end, and the second and fourth flexible arms extend in a direction substantially parallel to the trunk and toward the first end.

15. The muntin clip assembly of claim 10, wherein the trunk has a first end attached to the base, a second end distal from the base, and a central hub between the first and second ends, the first and second flexible arms are attached to the trunk proximate the second end, and the third and fourth flexible arms are attached to the trunk proximate the central hub.

16. A muntin clip assembly adapted to be connected to a spacer frame and a hollow muntin bar end, the muntin bar end having a first pair of opposed interior walls and a second pair of opposed interior walls, the assembly comprising:
a base member having a mounting structure adapted to be connected to the spacer frame; and a bar support extending from the base member and adapted to be inserted into the muntin bar end, the bar support having a trunk, a first group of flexible members adapted to contact the first pair of opposed interior walls of the muntin bar end when the bar support is inserted into the muntin bar end, and a second group of flexible members adapted to contact the second pair of opposed interior walls of the muntin bar end when the bar support is inserted into the muntin bar end.

17. The muntin clip assembly of claim 16, wherein the first group of flexible members is adapted to flex inwardly in response to contacting the first pair of opposed interior walls and the second group of flexible members is adapted to flex inwardly in response to contacting the second pair of opposed interior walls.

18. A muntin clip assembly adapted to be connected to a muntin bar end and a spacer frame, the assembly comprising:
a base member having a mounting structure adapted to be connected to the spacer frame; and a bar support attached to the base member and adapted to be connected to the muntin bar end, the bar support having a trunk extending from the base member, a flexible finger attached to the trunk and extending in a first direction, and a flexible arm attached to the trunk, a portion of the flexible arm extending in a second direction generally towards the flexible finger.

19. A muntin clip assembly adapted to be connected to a muntin bar end and a spacer frame, the assembly comprising:
a base member having a mounting structure adapted to be connected to the spacer frame; and a bar support attached to the base member and adapted to be inserted into an opening in the muntin bar end, the bar support having a trunk and a plurality of flexible members extending outwardly from the trunk, each of the flexible members adapted to substantially deflect when the bar support is inserted into the opening.

20. A muntin clip assembly adapted to be connected to a spacer frame and a hollow muntin bar end, the muntin bar end having a first pair of opposed interior walls and a second pair of opposed interior walls, the assembly comprising.
a base member having a mounting structure adapted to be connected to the spacer frame; and a bar support adapted to be inserted into the muntin bar end, the bar support comprising:
a trunk extending from the base member and having a first end attached to the base, a second end distal from the base, and a central hub between the first and second ends, a first pair of flexible fingers extending outwardly from opposed sides of the trunk proximate the second end, and a second pair of flexible fingers extending outwardly from opposed sides of the trunk proximate the central hub, wherein the first pair of flexible fingers and the second pair of flexible fingers are adapted to contact the first pair of opposed interior walls of the muntin bar end when the bar support is inserted into the muntin bar end and to flex inwardly in response to such contact, and a first flexible arm attached to the first side of the trunk and a second flexible arm attached to the second side of the trunk, the first and second flexible arms extending in a direction substantially parallel to the trunk and toward the first end, and a third flexible arm attached to the first side of the trunk and a fourth flexible arm attached to the second side of the trunk, the third and fourth flexible arms extending in a direction substantially parallel to the trunk and toward the second end, wherein each of the first, second, third, and fourth flexible fingers is adapted to contact one of the second pair of opposed interior walls of the muntin bar end when the bar support is inserted into the muntin bar end and to flex inwardly in response to such contact.