US 3261585 A
Description (OCR text may contain errors)
July 19, 1966 A. R. coNsTAN'rlNl ETAL 3,261,585
PILASTER ADAPTER Original Filed April 20, 1960 4 Sheets-Sheet 1 INVENTORS ANTuoNv m wewe By ANTHONY RCOSTHNTHH ffm July 19, 1966 A. R. coNs'rANTlNl r-:TAL 3,261,585
PILASTER ADAPTER 4 Sheets-Sheet 2 Original Filed April 20, 1960 INVENTOR.
ANTHONY D) HNGELOS BY NTHoHY R.CO5TANT\N\ July 19, 1966 A. R. coNsTANTlNl ETAL 3,261,585
PILASTER ADAPTER Original Filed April 20, 1960 4 Sheets-Sheet 3 ANTHONY m nNGELus BY ANTHONY R.CosThNT|N| July 19, 1966 A. R. coNsrAN-rlNl E'rAl. 3,261,585
PILASTER ADAPTER 4 Sheets-Sheet 4 Original Filed- April 20, 1960 INVENTOR. ANTHONY m nrfews 3y ANTHONY cosmm'mn United States Patent O 3,261,585 PILASTER ADAPTER Anthony R. Costantini, Lafayette Hill, and Anthony Di Angelus, Manoa, Pa., assignors to Victory Metal Manufacturing Company, doing business as Victory Metal Manufacturing Corporation, Plymouth Meeting, Pa., a corporation of Pennsylvania Original application Apr. 20, 1960, Ser. No. 23,412, now Patent No. 3,177,988, dated Apr. 13, 1965. Divided and this application Dec. 23, 1964, Ser. No. 420,541
3 Claims. (Cl. 248-243) This application is a division of application Serial No. 23,412, tiled April 20, 1960, which has matured as Patent No. 3,177,988, dated April 13, 1965.
The present invention relates to a refrigerator cabinet construction, and more particularly relates to the provision of assemblies mountable within the refrigerator interior for supporting various types of trays, pans, shelves and drawers. The novel assembly according to the invention includes vertically extending apertured pilasters secured to the interior walls of the refrigerator and which are engageable by rail supporting clips vertically positionable as desired with regard to the pilasters. The structure of the clips and the rails supported thereby is such that one type of clip may be employed to support a wide variety of different rail types, the latter being individually designed for the accommodation of various types of pans, trays and shelves. Additionally, this invention contemplates the provision of adapter units for the vertically running pilasters by means of which the spacing between facing pilasters may be altered so that trays or shelves of different widths may be accommodated, this application being a division of my Vco-pending application Serial No. 23,412, filed April 20, 1960.
In the past, tray supporting slides or rails have been known which include a slide section having formed at opposite ends, and integrally therewith, lone type or another of a clip adapted for securement to the inside liners of refrigeration equipment. Such slides or rails require machine or die forming and require the use of different dies to produce left-hand or right-hand slide units in those cases where the anchoring clip structures at opposite ends are not the same. Moreover, since slides of different lengths are utilized in different units, or indeed even within different compartments of the same refrigerator unit, quite a number of different length slides must be made by the maker of the refrigeration equipment and must be inventoried by him to provide a stock of spare slides for immediate shipment to purchasers who require the same as replacements for broken or otherwise damaged or unsuitable slides. This of course entails the tying up of capital in inventory, providing warehousing for such slide units, and also becomes a source of annoyance to the pur- Chaser since his refrigeration equipment is rendered at least partially unusable until he receives shipment of the replacement parts from the manufacturer.
Additionally, certain types of known tray supports are characterized by the fact that their manner of securement within the refrigerator equipment is not positive, and permits such supports to be accidentally detached which causes great annoyance and inconvenience to the user. Finally, presently known types of refrigerator tray supports are functionally inflexible in that they allow for the support of trays of only a single standardized width within a given compartment. The present invention contemplates the elimination of all of the foregoing disadvantages of presently known refrigerated tray supporting structures. Accordingly, it is a primary object of this invention to provide a novel refrigerated tray supporting rail structure which includes a pair of identical pilaster engaging clips secured to a tray supporting slide, at opposite ends there- ACC of, and which if the need arises may be repaired or replaced on the spot with very simple tools usually readily available, thereby maintaining the refrigeration unit in operation without the loss of capacity while waiting for a replacement part from the manufacturer.
Another object of this invention is to provide a novel refrigerated tray supporting rail `assembly which markedly reduces the parts inventory required to be kept on hand by the manufacturer or the user.
Yet another object of this invention is to provide a novel refrigerated tray supporting rail assembly which does away with previously known types of rails having end clips integrally formed therewith.
Still another object of this invention is to provide a novel adapter unit which may be used in conjunction with the rail supporting pilaster to decrease the width between spaced apart parallel disposed tray supporting rails so that trays of lesser width may be readily accommodated within the refrigerator, the novel adapters being quickly and easily removably attachable to the pilaster in conjunction with which itis used.
The foregoing and other objects -of this invention will become apparent from a reading of the following specification in conjunction with an examination of the appended drawings, wherein:
FIGURE l is a perspective view of a refrigerator with the doors open to show the pilasters and tray supporting rails carried thereby;
FIGURE 2 is .a vertical sectional view through the refrigerator of FIGURE 1 and as would be seen when viewed along the lines 2-2 thereof with the refrigerator door closed;
FIGURE 3 is an exploded perspective View, partially fragmented, of the vertically extending pilaster structures secured to the inside liners of the refrigerator seen in FIGURES l and 2;
FIGURE 4 is a partial perspective top end view of an .assembled pilaster structure, the parts of which are seen in the exploded View of FIGURE 3;
FIGURE 5 is a fragmentary horizontal sectional view through a pilaster structure secured within a refrigerator and as would be seen when viewed along the lines 5-5 of FIGURE 2;
FIGURE 6 is a rear perspective view of a pilaster attachable clip two of which are assembled with and at opposite ends of a desired length of supporting rail to form a complete rail assembly;
FIGURE 7 is a front perspective view of the clip seen in rear perspective in FIGURE 6, and shows one end of an associated rail in exploded relationship to the clip;
FIGURE 8 is a front perspective View illustrating a pair of fragmented vertically extending pilasters to which are each secured a rail end clip which in turn carry between them a typical fragmented rail according to the invention;
FIGURE 9 is an enlarged fragmentary vertical sectional view as would be seen when viewed along the lines 9--9 of FIGURE 8;
FIGURE 10 is a vertical sectional view such as would be seen when viewed along the lines 10-10 of FIG- URE 8;
FIGURE 11 is a horizontal sectional view through one of the pilasters of FIGURE 8 and as would be seen when viewed along the lines 11-11 of that ligure;
FIGURE 12 is a View similar to that of FIGURE 7 but showing an end clip having a wider horizontal rail supporting platform to accommodate a wider rail, such as is also seen in the showing of FIGURE 12;
FIGURE 13 is a vertical sectional view through a clip supported rail of the type seen in FIGURE l2 and showing a pan in phantom being supported thereof;
`FIGURE 14 is a front elevation of a roller type supporting rail structure with part of the slidable member broken away to reveal underlying structural details;
FIGURE 15 is a front perspective view of a roller type rail and attached to a supporting clip and with the movable rail member shown in exploded relationship thereto;
FIGURE 16 is a sectional View through the roller type rail as would be seen when viewed along the lines 16-16 of FIGURE 4;
FIGURE 17 is a front perspective view, partly fragmented, of an adapter element secured to a vertically extending pilaster;
FIGURE 18 is a vertical section taken through the perspective View of FIGURE 17 and as would be seen when viewed along the lines 18-18 thereof;
FIGURE 19 is a rear perspective view, partly fragmented, of the adapter element as would be seen when detached from the pilaster with which it is associated;
FIGURE 20 is a diagrammatic side elevational view which illustrates the method of attaching the adapter to a pilaster.
In the several `iigures, like elements are denoted by like reference characters.
Referring rst to FIGURES 1 and 2, there will be seen a refrigerator having a pair of side by side compartments 31 and 32 each having its own door 33 and 34 respectively associated therewith. Disposed within the compartments 31 and 32 and secured to the refrigerator compartment liners 39 are vertically extending pilasters 35 to which are secured rails or slides 36 and 36 by means of the clips 37 and 37, the rails 36 and 36 being adapted to support slidably thereon trays such as that designated 38.
Referring now to FIGURES 3 and 4, it will be seen therein that the pilasters are each composed of two structural members, a right angled corner C-shaped member 40 and a U-shaped channel member 43 adapted for disposition within the confines of the C shaped member 40. The C shaped member 40 has a main wall 42 through which are centrally punched a series of equally vertically spaced rectangular apertures 41, and further includes a pair of opposed C member arms having turned in end portions 48 spaced apart in coplanar relationship and extending parallel to the main wall 42. The U shaped channel member 43 has a base wall 46 and a pair of upturned anges 49, the base wall 46 being centrally circularly apertured at vertically spaced intervals along the length thereof, as at 44.
The spacing between the circular apertures 44 and the channel member base wall 46 is chosen to be either the same as or an integral multiple of the spacing between the rectangular apertures 41 in the C-shaped member 40, so that when the channel member 43 is disposed within the C-shaped member 40 as seen in FIGURES 4 and 5, each of the circular apertures 44 will be horizontally registrable with one of the rectangular apertures 41 in the C-shaped member 40. This arrangement permits a screw such as 47 illustrated in FIGURE 5 to be projected through one of the rectangular apertures 41 so that the shank of the screw 47 may pass simultaneously through the registering circular aperture 44 in the channel member 43 and be screwed into the compartment liner 39 to secure the pilaster 35 in position. As best seen in FIGURE 5, the pilaster 35 is secured to the liner 39 by a screw 47 in the manner just described, and as the screw 47 is pulled up tight the base wall 46 of the channel member 43 clamps the arms 48 of the C member 40 against the liner 39 to firmly secure the pilaster in place.
As best seen in FIGURES 3 and 4 respectively, the lower end of the C member 40 has the arms 48 end portions turned inwardly to provide a stop for the lower end of the channel member 43, and, when the channel member 43 has been disposed within the C member 40, the upper ends of the C member arms 48 are crimped as at 45 to provide an upper stop for the channel member 43. The
C member 40 and channel member 43 are cut to the desired size from standard lengths of stock and are so cut relative to one another that when interiittingly engaged as seen for example in FIGURE 4, the apertures 41 and 44 are in horizontal registration as previously described. In the resulting pilaster assembly, it will be thus understood that the channel members 43 are not visible, being wholly contained within the C members 40, and that the latter are rmly clamped against the compartment liners 39 throughout the full vertical extent of the pilaster.
Referring now to FIGURES 6 and 7 which show the clip member 37 and the intertting end of a rail 36, it will be observed that the clip 37 is of substantially L-shaped having a main body vertical part 50 and a main body horizontal leg 51 extending substantially orthogonally to one another. Turned forward into overlying parallel relationship with the horizontal leg 51 and extending from the top of the vertical part 50 are a pair of ears 52 having turned under ear ilanges 53 and defining therebetween a slot or opening, which as will be seen is sufficiently open to permit the upper ange 64 of the rail 36 to be forced thereinto. Turned up and back from the horizontal leg 51 of the clip 37 is a flange 61 which overlies the leg 51 in spaced relation thereto and allows sufiicient clearance for the end of the lower ange 65 of the rail 36 to be forced thereinto at the same time as the upper ange 64 is engaging with the ears 52.
Projecting upward `from the top of the clip vertical part 50 is a vertical tab 54 rearwardly offset as at 55. Turned back out of the main body vertical part 50 is a horizontally extending support tab 56 positioned immediately below the vertical tab 54. Similarly turned out of the main body vertical part 50 and extending substantially horizontally rearwardly thereof is a latching tab 57 having a downwardly projecting snap latch 58 and upward sloped carnming lip 59. The sides of the latching tab 57 are extended forward into the horizontal leg 51 of the clip 37 by means of the slots 60 which allow a resilient spring action of the latching tab 57 to take place in a vertical plane. Completing the structure of the clip 37 vare a pair of L-shaped reinforcing sides 62 disposed in parallel planes substantially perpendicular to the planes of the main body vertical and horizontal parts 50 and 51, and being joined to these parts along their side edges. The width of the clip 37 between the reinforcing sides 62 is at least equal to the overall width of the pilaster C member 40 so that the clip may be disposed upon the pilaster with the reinforcing sides 62 immediately overlying the side walls of the pilaster, as best seen in the showings of FIGURES 8 and l1.
As seen in the showings of FIGURES 6, 7, 8 and 10, the clip main body horizontal leg 51 is of somewhat greater front-to-rear extent than are the ears 52. This is not a necessary condition as will be clear from an examination of FIGURE 12 which illustrates a clip 37 identical to the clip 37 in all regards except one, that one difference residing in the fact that the clip main body horizontal leg 51' of the clip 37 is of substantially increased front to back length as compared to the corresponding horizontal leg 51 in the clip 37. This difference is, of course, to accommodate the rail 36 which has a much wider flange 65 than the corresponding flange 65 of the rail 36. In this 'comparison of FIGURES 7 and 12, it will also be observed that the forward turned ears 52 and 52 of the clips 37 and 37 respectively are identical in front-to-rear extent. This also is not a required condition and is so shown only for purposes of illustration.
Continuing the comparison of FIGURES 7 and 12, it is observed that the rails 36 and 36 respectively are substantially channel shaped and have base walls 63 and 63', forward turned short top flanges 64 and 64 and forward turned lower flanges 65 and 65 which are of greater frontto-back extent than the corresponding upper flange of the same rail. Each of the upper flanges 64 `and 64' has a rearwardly turned reinforcing portion 66 and 66 flattened down against the upper surface of the ange itself, and
each of the lower flanges 65 and 65 has a similar turned under and attened portion 67 and 67. The turned-back portions 66 and 67 and their primed counter parts are cut away at the end for a distance equal to the width of the clips 37 and 37 so that the anged portions 64 and 68 and their primed counter parts may be slipped into the clip recesses designed to receive them as previously described. Preferably, in the case of the wider rail 36 the upper reinforcing portion 66 is extended rearwardly across the full Width of the ange 64 and thence downwardly in overlying relation to the base wall 63' and its rib 70 to impart to the rail increased rigidity.
It will be observed that the lower ange end recesses 68 and 68 are created by not only cutting away the flange turn-back 67 but also by depressing the ange portion in the cut-away region, as it 69. By so doing, when the end of the rail 36 is fully engaged Wirth the clip 37, the turned back leg flange 61 of the clip 37 is enabled to be disposed in a common plane with the flange 65, as clearly illustrated in the showing of FIGURE 9. In this way, the turned back leg flange 61 has no tendency to catch the botto-m rear end of a pan or tray as the latter is slid into the refrigerator, and the pan may be easily slipped completely to the rear of the compartment without becoming hung-up by the turned back flange 61. Finally, the rails 36 and 36 are preferably formed with base wall reinforcing ribs 70 and 70 respectively, and the rail 36', because of the additional depth of its lower flange 65', also includes a plurality of reinforcing ribs 70'. However, in the case of the narrower rail 36, it may be desirable in certain instances to eliminate the reinforcing rib 70, as for example when such rail 36 is employed in an assembly as shown in FIGURES 14, 15 and 16 described more specifically hereinafter.
FIGURE 8 illustrates a rail 36 with a pair of clips 37 interitted therewith, one at each end, and the interiitted rail end and clips interlocked in operative position with a pair of spaced pilasters 35. Understanding now the manner in which the clips and rails are interfitted with one another, reference should be made to FIGURES 10 and l1 for an understanding of the manner of interlatching the clips 37 with the pilasters 35. FIGURE 18, although specilically dealing with the pilaster adapter aspect of this invention, is sufliciently similar to the showing of FIGURE 10 insofar as the interlocking aspects of the clips and pilasters are concerned that reference may also be made to the upper portion of this figure since it is shown in somewhat larger detail than the showing of FIGURE 10.
The clips are interlocked with the pilasters 35 by tilting the rail 36 into an inclined position so that the tops of the clips are closer to the pilasters than are the clip bottoms. In this position, rthe vertical tab 54 on each clip is inserted into one of the rectangular apertures 41 on the pilasters, pushed upward until the top of the tab offset 55 engages the top of the aperture 41, and the clips are then swung rearwardly so that the camming lip 59 of the latching tab 57 enters the next lower pilaster aperture 41. The continued exertion of inward directed force causes the snap latch 58 of the latching tab 57 to be cammed upward and ride in over the bottom of the lower pilaster aperture 41, snapping downward and securely latching the clip 37 in place.
Outward rotation of the top of each clip is prevented by the vertical tab 54 which is seen to be now disposed behind the unapertured portion of the pilaster main Wall 42. Downward displacement of the clip 37 is prevented by the horizontal support tab 56 which is seen to be seated upon the lower edge of the upper pilaster aperture 41. The support tab 56 is thus seen to remove the vertical weight load which would otherwise be imposed upon the latching tab 57. Dimensionally, it is seen that the vertical extent of the pilaster apertures 41 corresponds to the distance between the under-surface of the horizontal support tab 56 and the upper surface of the offset portion 5S of the vertical tab 54. This prevents any tendency toward vertical jiggling of the rail 36 once it has been installed. Similarly, it is observed that the distance between the upper edge of one pilaster aperture 41 and the lower edge of the next lower pilaster aperture 41 is slightly less than the distance between the upper surface of the offset 55 of the vertical tab 54 and the bottom of the downward projecting snaplatch 58, this dimensioning being effective to prevent any tendency toward disengagement of the clip 37 due to outward swinging of the lower end thereof.
Referring now to FIGURES 14, 15 and 16, there will be seen still another clip mounted rail structure of a type which finds wide application in refrigerated equipment. This structure includes as a base clip 37 and rail 36 illustrated in FIGURE 7 and previously described, to- Igether with additional elements to provide a ball bearing roller type of slide. These additional elements include the V-plate 74, the ball bearings 76, a C-shaped channel member adapted to slide within the rail structure 36 on Ithe ball bearings 76, and hardware for assembling the V- plate 74 and ball bearings 76 to the fixed rail 36. As is most clearly seen in the showing of FIGURE 16, a bolt 71 is projected through the inside race of the ball bearings 76, through a at washer 75 and the V-plate 74, thence through a pair of split l-ockwashers and a hole drilled through the base wall 63 of the rail 36, the entire assembly being secured in place by means of a nut 72 threaded upon the end of the bolt 71.
The associated C-shaped channel member has a vertically extending base wall 77, top .and bottom arms 78 and flanges 79 turned inward toward one another from the ends of the arms 78. The spacing between the channel arms 78 is slightly greater than the outside diameter of the ball bearings 76, and the anges 79 are turned inwardly toward one another to a suicient extent that they are disposed behind the upper and lower edges of the V-plate 74 and thus are prevented from outward lateral shifting. The C-shaped channel member is thereby made captive to the rail structure 36. The wall 80 of a tray shown in phantom in FIGURE 16 may be secured to the channel member base wall 77 in any convenient fashion, as for example by welding, soldering, or bolting, and when so secured will move with the channel members as they roll in and out of the refrigerator on the ball bearings 76. If desired, although not shown, a physical stop may be provided so that the channel members and secured tray may be withdrawn only a predetermined distance out of the refrigerator and are not free to be completely removed therefrom.
In those instances where it is desired to place trays in a refrigerator which was designed to accommodate trays of greater width, the invention contemplates the provision of snap-in pilaster adapters which may be easily attached to and removed from the pilasters already built into the refrigerator so that trays of narrower width may be accommodated therein. Such a typical pilaster adapter is illustrated in the showings of FIGURES 17, 18 and 19, being designated therein generally as 3S. Referring first to FIGURE 17, it is seen that the pilaster adapter 35 is of generally modified U-shape having a base wall 42', rearwardly extending side walls 82 and 84 joined by an offset shouldered portion 83, the side walls 84 being parallel to the side wall 82 but being spaced somewhat further apart at a separation just sufficient to accommodate therebetween a pilaster clip 37 of the same type as has already been described in connection with the showings of FIGURES 6 and 7.
The pilaster adapter base wall 42 is rectangularly apertured as at 41 with the apertures 41 being of the same size, shape and vertical spacing as the rectangular apertures 41 in the pilaster 35. The pilaster adapter walls 84 are turned inwardly back upon themselves as at 84 illustrated in the showing of FIGURE 19. As also best seen in FIGURE 19, the turned back portions 85 of the adapter walls 84 are recessed away at those points between the walls 84 where a clip 37 is disposed, the clip 37 being physically secured to the adapters 35 by rivets 87 which hold the clip reinforcing sides 62 to the rear marginal edge of the adapter walls 84.
As shown in FIGURE 20 by the presence of two sets of rivets 87, one set at the top and one set at the bottom, the illustrated pilaster adapter 35 employs at least two clips 37 as a means of securing the adapter to the pilaster 35. As seen in FIGURES 18 and 19, the upper one of the illustrated pilaster adapter 35 employs at least two clips 37 as a means of securing the adapter to the pilaster showing of FIGURE previously described and is identical thereto. In this application, it will, of course, be realized, that the forward turned ears 52 and the flanges 53 and 61 on the clip 37 performno function and may be either ignored or cut away as desired. The lower clip 37 secured to the adapter 35 requires a slight modication to allow its use -in this application. The modification consists'merely in removing the vertical ta'b 54 as indicated at 81 in FIGURES 18 and 19. The removal of this tab 54 is required since it cannot be projected through an aperture 41 when the adapter is snapped into place in the manner illustrated in FIGURE 20. From FIGURE it should be clear that were the tab 54 allowed to remain on the lower clip 37 it would come into face to face contact with the outer surface of the base wall 42 of the pilaster 35 as the adapter lower end were swung inward, and would hence prevent the lower latching tab 57 from latching into its associated aperture 41.
It will, of course, be appreciated that pilaster adapters 35 may be formed with rside walls 84 of any desired front to back depth, within reason, so that quite a number of dilferent widths of trays may be accommodated. Moreover, it is not necessary that an adapter 35 run the entire length of a pilaster 35, but may be made in short sections as well, so that different width trays may even be accommodated within a single compartment. Additionally, although the pilaster adapter 35 is 4illustrated as having only a top and a bottom clip 3-7, additional intermediate clips may also be employed with the provision that such intermediate clips must have their vertical tabs 54 Iemoved in the manner shown at 81 for the lower clip illustrated in FIGURES 18 and 19. It will be apparent, of course, that when the pilaster adapter 35 is mounted in position as shown in FIGURES 17, 18 and 19 it effectively provides a support for detachable securement thereto of the rail supporting clips 37, in the same manner and for the same purposes as when the lclips were secured directly to the pilaster 35.
Having now described our invention -in connection with particularly illustrated embodiments thereof, it will be appreciated that variations and modications will occur from time to time to those persons normally skilled in the art without departing from the real spirit or concept of the invention, and accordingly, it is desired to claim the same broadly as well-as specifically as indicated by the appended claims.
What is claimed as new and useful is:
1. An adapter unit for quick detachable mounting to a vertically extending pilaster for increasing the extent of projection of the pilaster from the pilaster support structure comprising in combination, a generally U-shaped channel member having a front wall and a pair of side walls extending rearwardly from opposite sides of said front wall, and at least one Vclip member secured to said channel member between the side walls thereof, said clip mem-ber including a main body portion extending between said channel member side walls and latching elements adapted for quick detachable latching engagement with the pilaster, said clip member including a vertically extending tab rearwardly offset relative to said clip main body portion, and a spring biased latching tab underlying said vertical tab and extending rearwardly of said clip main lbody portion.
2. An adapter unit for quick detachable mounting to a vertically extending pilaster for increasing the extent of projection of the pilaster from the pilaster support structure comprising in combination, a generally U-shaped channel member having a front wall and a pair of side walls extending rearwardly from opposite sides of said front wall, and two clip members secured to said channel member between the side walls thereof at spaced apart points along the channel length, said clip members each including a main body portion extending between said channel member side walls and carrying latching elements adapted for quick detachable latching engagement with the pilaster, the latching elements of one of said clip members including a vertically extending tab rearwardly offset relative to said one clip main Ibody portion, and the latching elements of the other of said clip members including a spring biased latching tab extending rearwardly of the main body portion of its clip.
3. The combination according to claim 2 wherein said channel member front wall is apertured at spaced intervals along its length to provide means interlockable with a rail structure to be supported by the pilaster adapter.
References Cited by the Examiner UNITED STATES PATENTS 2,309,452 1/ 1943 Hasenburger et al 20-11 2,582,765 1/1952 Brew 52-212 CLAUDE A. LE ROY, Primary Exfrminer.
CHANCELLOR E. HARRIS, Examiner.
F. DOMOTOR, Assistant Examiner.