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Publication numberUS1975327 A
Publication typeGrant
Publication dateOct 2, 1934
Filing dateDec 20, 1933
Priority dateDec 20, 1933
Publication numberUS 1975327 A, US 1975327A, US-A-1975327, US1975327 A, US1975327A
InventorsLoney Jacob N
Original AssigneeRalph E Adamson, Susan B Adamson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Refrigerator shelf
US 1975327 A
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Description  (OCR text may contain errors)

J. N. P @NEY L9752i REFRIGERATOR SHELF Filed Dec.' 20, 1953 Patented Oct. 2, 1934 y UNITED STATES PATENT OFFICE REFRIGERATOR SHELF Application December 20, 1933, Serial No. 703,259

3 Claims. (Cl. 211151) This invention relates to new and useful improvements in refrigerator shelves, and more particularly to movable shelves and trays for mechanical refrigerators and the like.

It is one of the principal objects of my invention to provide a roller mounting for refrigerator shelves and trays that will permit their being withdrawn from within the refrigerator more than two-thirds their depth without binding in their supports and without tilting.

Another object of my invention is to provide a roller mounting for movable shelves and trays that will permit their complete removal from the refrigerator when desired.

It is another object of my invention to provide a structure in which there is no metal to metal con-l tact between its various movable parts, such as would destroyV the galvanizing or electroplating employed to rust-proof them.

I have also provided a structure that may be easily removed for cleaning. y

Other important and incidental objects of my invention will be set forth in the followingv specification and the claims subjoined thereto.

In the accompanying drawing illustrating my invention in its preferred form, Figure 1 is a front View of a conventional domestic refrigerator cabinet showing my movable shelves and trays therein. Figure 2 is a longitudinal, sectional View taken through one of the movable trays and its mounting, while fully within the cabinet. Figure 3 is a view of the movable tray shown in Figure 2, when withdrawn from the cabinet and supported by the stationary members. y

Figure 4 is another view of the movable tray shown in Figure 2, While in the process of being completely removed from the cabinet.

Figure 5 is a sectional view taken on the line 5-5 of Figure 2, showing the rear rollers. Figure 6 is a sectional view taken on the line 6-6 of Figure 2, showing the front rollers. Figure 7 is a fragmentary perspective view of one of the guide channels and associated parts. Figure 8 is a detail view of the rear mounting means, and Figure 9 is a detail view of the front mounting means.

Referring to the accompanying drawing for a detail description of my invention, the numeral 1 designates a conventional refrigerator cabinet having a food storage compartment 2. In this compartment I have shown a movable top shelf 3 and movable lower trays. 4, although it is obvious that all may be either trays or shelves as desired. Each shelf 3 or tray 4 is independently mounted upon oppositely disposed horizontal channel members 5, 5 secured to the side walls of the compartment 2.

As shown in Figure 8, each channel member 5 has riveted, welded or otherwise secured to its outer face, at the inner end thereof, a shouldered stud 6 whose reduced outer end 7 passes through the refrigerator lining and wall structure 8, receiving on itsouter threaded end a washer 9 and nut 10.

At the forward end of each channel member 5, I have secured a similar stud 11 to the outer face thereof. k This stud has an axial extensionv 12 projecting inwardly between the channel flanges as shown in Figure 9.

The reduced outer end 13 of this stud 11 also 70 passes through the refrigerator lining and wall 8, there beingl applied to its outer end a Washer 14 and nut 15. By means of these studs 6 and 11, the channel members 5 are rigidly and permanently attached to the opposite side Walls 8 of the compartment 2.

At the front end of each channel member 5, its web 16 projects slightly beyond the top and bottom flanges 17 and 18, respectively, to receive the stud 11 and a flanged composition roller 19 freely mounted on the axial extension 12. This roller is positioned with its flanged face 20 adjacent the inner-face of the channel web 16. (See Figure 7).

Rearward of the roller 19, and at substantially one-fourth the length of the channel members 5, the top and bottom flanges 17 and 18 of each, is formed inwardly to provide a restricted passage or stop 21 therein. Adjacent the rear end of each channel member 5, its top flange 17 is abbreviated to permit the insertion between its flanges, of a rear cylindrical roller 22. (See Figure 7).

My movable shelves 3 and trays 4 are similarly formed with a rectangular frame 23 of round stock whose ends are welded to provide a continuous bottom member, and to whose top face, narrow rectangular members or bars 24 are welded in transversely spaced relation to form a reticular bottom 25. When used inthe construction of a tray 4, alternate bars 24 of the bottom are formed upwardly, perpendicular to the bottom, at the point of intersection with the frame 23, to provide the tray sides.

The short members 26 are also welded perpendicular to the front and rear ends ofthe frame 23 to form the ends of the trays, the top free ends of these perpendicular members 24 and 26 being joined, by welding, to a continuous band 27, likewise of rectangular shape. (See Figures 2, 5 and 7). 110

Secured to each side of the frame 23 and adjacent its rear end, is a depending bracket member 28 formed outwardly from the side of the tray, to receive, the roller 22, which is freely mounted thereon andis supported on the lower flange 18. The rollers 22 project beyond the ends of the bracket members 28 on which they are mounted to prevent the engagement of the latter with the channel webs 16. (See Figures 7 and 8) The completed tray or shelf is then galvanized or given a rust-proof electro-plating before installation in the refrigerator.

In each case I desire to use non-metallic rollers 19 and 22 of non-absorbing material such as a phenolic-condensate compound. By using rollers of this type, metal to metal contact is eliminated, thus assuring quiet operation as Well as a long life of the rust proofing of the metal.

When my trays or shelves are inserted in the cabinet, the rear rollers 22 are applied to their respective mounting brackets 28, and the rollers 19 are positioned on the axial projections 12 of the front studs l1. The tray or shelf is now placed in the compartment 2 with the rear roller 22 on top of the top flange 17 as shown at Figure 4. When the tray or shelf is fully inserted, the rear rollers will assume a position on the bottom flange 18 as shown at Figure 2, and the front end of the frame 23 will be received on the flanged periphery of the front rollers 19, 19.

Now, as the tray or shelf is withdrawn from the compartment, the rear rollers 22, 22 will roll on the top face of the bottom flanges 18, 18 between the top and bottom flanges of the channel members 5, 5 and the frame 23 will be supported at the front of the compartment by the oppositely disposed rollers 19, 19.

When the shelf or tray has been withdrawn its maximum distance, the rollers 22 will engage the restricted passages or stops 21, 21 formed in the flanges of the channel members 5, 5. The stationary front rollers 19, 19 will now serve as a fulcrum for the projecting portion of the tray or shelf, and the top flanges 17, 17 will engage the rear rollers 22, 22 to maintain the tray or shelf in a horizontal position, even when filled with the articles customarily stored in a refrigerator. (See Figure 3.)

When it is desired to completely detach and remove a shelf or tray, lts inner end is lifted `untilfits^rollers 22 22 occupy a position on the top flanges 17, 17 of their respective channels as shown in Figure 4. The tray or shelf may now be completely withdrawn without engaging the stops 21, 21.

It is thus seen that I have provided a simple, frictionless, roller-mounted shelf or tray structure that will render accessible the storage space provided at the rear of the compartment, and thus permit a more efcient and satisfactory use of the entire shelf area.

Having described my invention, I claim:

l. In a tray-receiving compartment, oppositely disposed horizontal members, top and bottom inwardly projecting anges on said members, rollers freely mounted at the front ends of said members, oppositely disposed flanges formed on said rollers, a movable traypositioned on said rollers, roller-mounting members secured to the rear of said tray, rollers on said mounting members and movable between said flanges, and restricted stop portions formed on the flanges of said horizontal members for engagement by the rear rollers to limit the outward movement of the shelf.v

2. In a tray-receivingcompartment, oppositely disposed horizontal members, spaced anges on the latter, rollers freely mounted at the front ends of said horizontal members, a movable tray supported at its front end by said rollers, and rear rollers carried by said tray for movement between said flanges during the normal movement of said tray, and adapted to clear the rear ends of said horizontal members for placement upon the top flanges of the` latter to roll out- Wardly thereon when the tray is withdrawn from said compartment.

3. In a tray-receiving compartment, oppositely disposed horizontal members supported therein, top and bottom inwardly projecting. flanges formed on said members, the top flanges being shorter than the bottom flanges, a roller freely mounted at the front end of each horizontal member, a movable tray supported by said rollers, rear rollers movable between said flanges, and bracket members secured to the rear end of said tray to receive the rear rollers, the latter adapted to be raised above the rear ends of the short flanges of the horizontal members for a forward movement thereon to permit a complete withdrawal of the tray.v

JACOB N. LONEY.

rae

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2423863 *Nov 16, 1940Jul 15, 1947Wales George FSheet metal compartment with shelf supports and method of manufacture
US2430141 *Nov 20, 1943Nov 4, 1947Florence Stove CoCabinet comprising drawer supporting and guiding structure
US2462397 *Aug 28, 1944Feb 22, 1949Applied Arts CorpAsh receiver
US2494221 *Feb 18, 1946Jan 10, 1950John WojakowskiRolling shelf
US2510453 *Dec 9, 1946Jun 6, 1950Yoars Fred PTray
US2550980 *Dec 23, 1944May 1, 1951Gibson Refrigerator CoAntitilt and stop means for sliding shelves
US2677584 *Dec 6, 1950May 4, 1954Michael SchulmanGarment bag hanger frame
US2750052 *Dec 6, 1952Jun 12, 1956Hamilton Mfg CoSliding shelf arrangements for book stacks
US2984533 *Feb 19, 1957May 16, 1961Whirlpool CoRack means for refrigerators and the like
US3242885 *Jul 28, 1964Mar 29, 1966Whirlpool CoShelf structure
US3311072 *Apr 1, 1966Mar 28, 1967Gen ElectricCantilever slide-out shelf
US3399784 *Aug 1, 1966Sep 3, 1968Ardco IncShelving units with rolling shelves
US3789779 *Jan 3, 1972Feb 5, 1974J GuestDocument sorting apparatus
US3975071 *Oct 22, 1974Aug 17, 1976Supreme Equipment & Systems CorporationFile cabinet construction
US4133122 *Aug 15, 1977Jan 9, 1979Caterpillar Tractor Co.Carriage assembly for an elevating scraper dump linkage and method of installing
US4549774 *Feb 22, 1983Oct 29, 1985Knape & Vogt Manufacturing CompanyDrawer slide apparatus
US4966401 *Nov 14, 1988Oct 30, 1990Dutro Scott GExtension glide system for mounting truck storage box
US5893620 *Jul 26, 1993Apr 13, 1999Whirlpool CorporationMultiple shelf support system in common refrigerator liner
US6267258May 4, 2000Jul 31, 2001Gilmour, Inc.Gravity feed pull out shelf with rear storage area and associated method for displaying and storing a product
US8113609 *Jan 22, 2007Feb 14, 2012Lg Electronics Inc.Guide rail for refrigerator
US8226182 *Apr 13, 2007Jul 24, 2012Lg Electronics Inc.Refrigerator
Classifications
U.S. Classification312/408, 108/137, 211/134, 312/323, 211/151, 126/339
International ClassificationA47B88/04, F25D25/02, A47B88/14
Cooperative ClassificationA47B2210/0045, A47B88/14, A47B2210/0059, A47B2210/0043, F25D25/024
European ClassificationA47B88/14, F25D25/02C