US2556099A

US2556099A - Sheet metal drawer head construction

Info

Publication number: US2556099A
Application number: US735603A
Authority: US
Inventors: Charles O Myer
Original assignee: Mullins Manufacturing Corp
Current assignee: Mullins Manufacturing Corp
Priority date: 1947-03-19
Filing date: 1947-03-19
Publication date: 1951-06-05
Anticipated expiration: 1968-06-05

Description

June 5, 1951 c, o, MYER 2,556,099

SHEET METAL DRAWER HEAD CONSTRUCTION Filed March 19, 1947 s Sheets-Sheet; 1

T 8/ 4 1 V lnncmor Charles aMyer 92w 1% June 5, 1951 c. o. MYER 2,556,099

SHEET METAL DRAWER HEAD CONSTRUCTION Filed March 19, 1947 3 Sheets-Sheet 2 3m1entor Ftgd' 7 v Charles QMyer (Ittornegs June 5, 1951 c. o. MYER 2,556,099

SHEET METAL DRAWER HEAD CONSTRUCTION Filed March 19, 1947 3 Sheets-Sheet 3 Fig. 8

Fig. .9

l6 5 H l 1/9 F1 10 [Z91 "Z0 6 {BA l A A 3nnentor m 11 Charles 0.111 91.

vim 1 attornega Patented June 5, 1951 SHEET METAL DRAWER HEAD CONSTRUCTION.

Charles 0. Myer, Warren, Ohio, assignor to Mullins Manufacturing Corporation,

Salem,

Ohio, a corporation of New York Application March 19, 1947, Serial No. 735,603

2 Claims. 1 a

The; invention. relates to sheet metal drawer headland door construction, and more particularly. to the construction of a stiif, rigid, doublepanel, sound-deadened drawer head or door formed of light gauge. sheetmetal- Present day kitchens are equipped with base cabinets, wall. cabinets and undersink cabinets. The wall cabinetsordinarily are provided with one or more doors. and. the base. and undersink cabinets may beprovided'ywith doors or drawers or both. Large numbers of such cabinets are made of light gauge sheet. metal, usually sheet steel. and the drawer, heads. and doors. are fabricated. to havea box-like double panel construction. provided with afiush outer panel wall, an inner panel wall, and narrow top, bottom and edge walls.

The cabinets and their drawers and doors are provided with painted surfaces, usually but not necessarily white; and. handles ordinarily are secured to each drawer head and door.

The box-like drawer. head or door structure should be stiff and rigid so that the structure and the outer and inner panel walls thereof will not.fiex,.warp weave, twist, spring or bow convexly or concavely in use upon normally opening or closing the drawer or door or upon pulling or pushing a handle secured thereto even though.

thedrawer or door is made of light gauge sheet metal. Further, the outer surface of the door should be free of weld marks, bolt heads, rivets, etc., so' as to present an attractive appearance.

Ordinarily, such drawer heads or doors are fabricated of two sheet steel members with edge flanges telescoped one within another so that the top, bottom and edge walls of the box-like structure are formed of double thickness metal. However, the inner and outer panel walls of the box-like structure each comprise only a single thickness of metal of considerable area. The two members may be assembled by bent tongues, but they are ordinarily welded to provide a more rigid structure.

Such a box-like structure by its very construction, which includes thin single metal thickness panel walls, is drum-like and produces a sharp, high-pitched metallic sound when struck, which is objectionable.

Considerable difficulty has been experienced in the art in attempts to find a satisfactory solution to the, problem and. to provide a stiff and rigid, sound-deadenedi light gauge sheet metal drawer head or door structure. Many typesand kinds of sound deadening material have been used. The cavity or a portion thereof between the inner and outer panels has been filled with sound deadening material such as pressed pulp insulation board or corrugated paper pads; or one or. both inner panel surfaces has been coated with mastic asphalt. However, such sound deadening means, while more or less satisfactory for sound deadening purposes, do not aid in providing a more rigid structure and create new difiiculties in. assembling or painting operations.

Thus, asphalt material containing solvents, unless dry,.within abox-like structure when be ing welded for assembly. gives off gases which.

may explode from the heat of welding.

However, it is impractical under production methods to use a long drying step in the production. linev assembly ofcabinet doors and the like for drying inner asphalt coated surfaces of a metal box-like structure.

Moreover, the surfaces of a completely as.- sembled metal door or drawer. structure must be cleaned or otherwise prepared for painting as a final step immediately preceding painting, preferably by dipping in various kinds of liquid cleaning or treating baths. Paper, pulp board and the like contained within a box-like metallic structure will absorb the liquid of the treating bath. It ispractically impossible to completely dry paper or pulp board within an assembled box-like metal structure and to rid the same of the last remnants of the liquid cleaning reagent which ma be acid. The presence of even small quantities of the cleaning or treating liquid within the paper,.pulp board andthe like may prevent a complete bake-out of the paint film.

Various types and kinds of metal. spacer clips also have been provided between the inner panel surfaces of box-like drawer head and door structures but such means have usually been secured to at least one of the panel members by spot welding which mars the appearance of the finished article unless extensive metal surface finishing operations are carried out. These metal finishing operations are so costly that they are not. feasible in the commercial productionof sheet metal cabinets. means function only as spacer members and do not increase the stiffness and rigidity of the boxlike structure to any substantial degree, and do not aid in sound deadening.

In other words, all prior art constructions are subject to or introduce one or more difficulties and do not provide the desired stiffness, rigidity and sound deadening characteristics in the construction of light. gauge box-like drawer head Moreover, such metal, clip 3 and door structures. Apparently, there has been no satisfactory solution to the problems presented prior to the present invention.

Accordingly, it is a primary object of the present invention to improve the construction of light gauge sheet metal drawer head and door structures.

Furthermore, it is an object of the present invention to provide a new box-like double panel light gauge sheet metal drawer head or door structure which has such rigidity and stiffness that it will not flex, warp, weave, twist, spring or bow in normal use, without the use of any metal clips or spacer members inserted between or secured to the inner or outer panel members of the structure.

Also, it is an object of the present invention to provide a new box-like double panel light gauge sheet metal drawer head or door structure having sound deadening means which has excellent sound deadening characteristics without creating difiiculties due to the presence of the sound deadening means in assembling the structure by weldin or in the subsequent cleaning and painting of the assembled structure.

Moreover, it is an object of the present invention to provide a new stiff, rigid, sound-deadened drawer head or door structure which may be fabriacted in accordance with production methods at a minimum cost.

Furthermore, it is an object of'the present invention to provide a new box-like double panel light gauge sheet metal drawer head or door structure in which a substantial portion of the panel area of the inner panel is held in pressure abutting relation against the outer panel with sound deadening material means compressed therebetween so as to provide a stiff and rigid assembled structure in which the compressed sound deadening material cannot absorb liquid reagents used in cleaning or treatin the surfaces of the assembled structure in preparation for painting.

Finally, it is an object of the present invention to provide a new box-like double panel light gauge sheet metal drawer head and door construction for kitchen wall, base and undersink cabinets and the like which avoids prior art difficulties, satisfactorily solves problems existing in the art, and incorporates the foregoing advantages and desiderata in a simple, effective and inexpensive manner.

These and other objects and advantages apparent to those skilled in the art from the following description and claims, may be obtained, the stated results achieved, and the described difficulties overcome, by the devices, constructions, arrangements, combinations, subcombinations, parts, elements, methods, steps, operations, and procedures which comprise the present invention, the nature of which are set forth in the following general statement, preferred embodiments of which-illustrative of the best modes in which applicant has contemplated applying the principles-are set forth in the following descrition and shown in the drawings, and which are particularly and distinctly pointed out and set forth in the appended claims forming part hereof.

The nature of the improvements in sheet metal drawer head and door construction may be stated in general terms as preferably including a box-like, double panel, light gauge, sheet metal drawer head or door structure having an outer panel member and an inner panel member; the

outer panel member comprising a flat rectangular panel wall terminating at its edges in inturned top, bottom and edge wall flanges; the inner panel member comprising a rectangular panel wall terminating at its edges in outturned top, bottom and edge wall flanges telescoped within the outer panel member top, bottom and edge wall flanges, said inner panel wall having formed therein a deep drawn outwardly recessed panel portion comprising a major portion of the width and height of the inner panel wall; said recessed panel portion having a depth such that when the inner and outer panel members are telescopically assembled, the recessed panel portion is located closely adjacent said outer panel wall with slight clearance space therebetween;

a sheet of compressible, waterproofed, wafiled or felted. paper sound insulation material interposed and compressed between said recessed panel portion and said outer panel wall; said sound insulation material sheet in uncompressed.

normal condition having a thickness greater than that of said slight clearance space; and means joining said inner and outer panel members together, holding said recessed panel portion and said outer panel wall in pressure abutting relation and holdin said sound insulation material sheet compressed therebetween.

The nature of the improvements in methods of making rigid, sound insulated, box-like, double panel, light gauge sheet metal drawer head or door structures may be stated in general terms as preferably including forming a flanged outer panel member, forming a flanged inner panel member, drawing a recessed panel portion in the inner panel member, applying and prefer-. ably cementing a sheet of compressible, waterproofed, wafiled or felted paper sound insulation material to the entire inner area of said recessed panel portion, telescoping the flanges of said outer panel member with respect to the flanges of the inner panel member, pressing the outer panel member against the recessed panel portion of the inner panel member to compress the sound insulation material sheet therebetween; and, while maintaining said members pressed together, rigidly securing said panel members together, as by welding, to hold the outer panel member in pressure abutting relation against the recessed panel portion of said inner panel member with said sound insulation material sheet compressed therebetween.

By way of example, preferred embodiments of, and methods of making, the improved sheet metal drawer head and door structures are illustrated in the accompanying drawings forming part hereof wherein:

Figure l is a perspective View of a base cabinet having a drawer and doors each provided with the improved construction;

Fig. 2 is a front elevation of the drawer head of the drawer of the cabinet illustrated in Fig. 1;

Fig. 3 is a fragmentary plan View of the drawer illustrated in Fig. 2;

Fig. 4 is an enlarged section looking in the di rection of the arows d-4, Fig. 3;

Fig. 5 is a diagrammatic perspective view of the inner panel member of the drawer head of Fig. 2 placed on an assembly table with adhesive material applied to the inner surface of the recessed panel portion thereof and with a sheet of sound insulation material cemented thereto;

Fig. 6 is a view similar to Fig. 5 showing an therewith 7' is atview' similarto Figs. 5 and; 62' illustrating the outerpanelmem'ber of the improved. drawer: head construction completely: assembled. with the inner: panel member and held: in. pres-- sure abutting relation to compress. the. sound? insulation material sheet while the panel members are being secured together, as' by welding;

Fig. 8 is a transverse sectionthrough the outer panelmember illustrated in Fig. 7;.

Fig. 9 is" a transverse sectionthrough. the sheet of sound insul'ationmaterial illustrated in: Fig... 5

Fig. 10 is a transverse section through the inner panel member illustrated in Fig. 5

Fig-J 11 is a transverse section-through1the=as sembl'ed" drawer head structure comprised: of; the parts illustrated in: Figs. 8, 9 and 10;.

Fig. 12 is aperspective View of av wall: cabinet. having doorseach provided with: the improved: construction;

Fig. 13 is a vertical section of a door of a base; cabinet, looking in the direction of: the; arrows I-3I 3 Fig. 1;- and Fig. 1411s a similar sectional view of: a door. of a wall cabinet; looking in thedirectioniofe: the? arrows I-'4'-I'4, Fig. 12.

Similar numerals refer to. similar: parts throughout the various figures of thev drawings:

A kitchen cabinet is: indicated generally at I in Fig; 1 having a cabinetportion 2,. a topr portion 3, adrawer indicated generally at. 4;. and. doors indicated generally: at 5. Referring: to' Figs. 1 through IL-the drawer 4 is providedwith: a drawer head 6 of the improved construction to which a drawer body I is secured. irr. any: usual. manner. The drawer head 6 is composedaof. an; outer panel member 8', an inner panellmembenfi. and a handle I512 The outer' and. inner panel; members may each be formed'ofslightzgaugeisheet: metal such as 24 to. 22 gauge. sheet steel.

Referring to Figs. 4 and 85,. thei'outer. panel: member8 isalormed with a: flat rectangular panel wall II terminating at its, edges: in: inturned' flanges I2; the; upper flange. i2 preferably ten-- minating in a downturnedflange. I3 (Fig. 4);.

Referring. to Figs. 4, 5. and 10;, the inner panel member 9 is formed with a. panel wall IA which is formed v throughout the major portion of its height and: width with. a recessed preferably rectangular panelv portion I5; and. inner panel. wall I4 terminates at its edges in outtur-ned flanges I6.

The panel wall M is preferably embossed at I-? toreceive. the, downturned flange: I3 of the outer panel member 8 when. the flanges I6. 0i. theinner. panel member 9 are telescopedwithin. theflanges l2 of the outer panel member 8.

The members 8- and 9. are assembledandmaintainedin rigid assembled. conditionby" the cooperative. engagement of the flange- I3. and em.-- bossed portion. I1, and by tack weldingthelower inner corners. of the flanges I2 of. the outer. panel member 8v to the, lower inner corners of. the inner. panel member 9,, as indicated: at I8-in Figs. 4 and '7. The telescoped flanges. I-2: and I5,. when assembled, form the top, bottom, andside edge walls of: the hollow sheet metal drawerh'ead: panel structure. 6,. and these edge walls hold the: panel walls II. and M.- in spaced: apart relation, as shown; Likewise, when; assembled. the recessed. panel. portion: I5. formed. in the: inner panel wall. I4; is. located substantially at. the same depth. as the depth. of: the top,.b0t.to.m; and side edge Walls. formed by the-flangesv I2 and; I6, except for. the. slight clearance; space provided; between. the panel: portion; L5" and. outer; panel;

The sound insulation material sheet 5 her 8 face down on the work table surface.

wall H2, as shown inFigse; 8-,.10, 11,.13...and 1:4. Referringgto. Figs. 4, 5, 6;. 9 and-111,.a sheetv of compressible-,. waterproofed; waflled or feltedpaper sound: insulationmaterial I9 is interposed and compressed between the outer panel wall I I of. theouter panel member 8 and the recessed portion 15: of the inner panel member 9. The sound insulation sheet I9, being. formed of waffled or felted papenis compressible and its normal thickness: is, illustrated in Fig. 9, whereas when held under'pressureand compressed between the inner and outer panel members, its thickness is.- redueedi to substantially that shown at in Figs: 4 and? 11.

The handle; I'Il'may be secured to the drawer headt by screws 2| passing through outer panel wall II, the sound insulation sheet I9, the recessed'panel portion I5, and the handle I0;

In assembling the improved drawer head construction, an inner panel member 9 is placed on a pedestal 22. of an assembly table 23 with its inside surface accessible. Spots of adhesive material 24 are applied to the inner surface of the recessed panel portion [5 as illustrated in Fig. 5.. A preferably rectangular sheet of com.-

pressibla. Waterproofed, wafiled or felted paper sound insulation material. it is applied to said inner. surface. of the recessed panel portion I5; and is held thereon by the adhesive cement 24. I9 covers substantially the entire inner; area of the recessed panel portion I51 as illustrated in Fig. 5.

An outer panellmember 8; is then assembled to the inner panel member 9 by telescoping the flanges I2. of the: outer panel member over the flanges Iii of the inner panel member as shownin Fig. 6.. In performing this operation, the flange I31 of the: outer panel member 3 is engage'd in. the embossed portion ll of the inner panel memberfl to lock these edges of the

members

8 and 9 together. The edges of the two panel members and 9 opposite the locked edge I3I.I are theniforced-under a height gage bar on a work. table 25a with the outer panel mem- This holds the' sound insulation material compressed Withthe outer panel wall I I maintained in pressure abutting relation with respect to the recessed: panel portion I5, while the inner corners of the: flanges. of" the inner and outer panelmem bers areweld'ed together, as by tack welding, illustrated at I8: in Fig. '7. Thus, no weld marks show on the outer surface of the outer panel member; and no: bolt heads or rivets are used or appear on the; outer panel surface to mar its appearance;

The drawer head 6 may then have the drawer body 1 assembled thereto'in any usual manner; after which the completed drawer 4 may be cleaned and otherwise subjected to surface treatment in final preparation for painting. Such cleaning and surface preparation ordinarily comprises a series of sprays of various reagents followed by spray rinsing and then drying.

Waterproofed, waflled or felted paper sound insulation material is normally water-proof or water repellant even though immersed in water for a. considerable period of time. Nevertheless, in its free uncompressed state, some cleaning reagent, particularly'acid, may be absorbed in the spaces between the fibers thereof. However, since the sound. insulation material sheet It is compressed and maintained compressed between the inner. and

outer panel members

9 and 8, only the peripheral compressed edge. thereof. is pro.

sented to the various sprayed solutions in the cleaning, treating and rinsing operations to which the drawer is subjected. Under such conditions, no liquid will be absorbed by the sound insulation material I9. All liquid drains from the interior of the drawer head and a normal short drying operation completely drys all inner surfaces of the drawer head which have been exposed to the liquid cleaning reagents.

The drawer 4 may then be painted in the usual manner in accordance with production methods without diiiiculty.

Referring to the base cabinet door 5 illustrated in Figs. 1 and 13, the construction of the same is identical with that of the drawer head 6, except for the relative dimensions thereof and the location of the handle 26 thereon.

Similarly, the structure of the wall cabinet door 21 illustrated in Figs. 12 and 14 is identical to the structure of the door 5 and the drawer head 6, except for relative dimensions and the location of the handle 28.

The presence of the drawn recessed panel portion l5, occupying a major portion of the width and height of the improved drawer head structure and maintained in pressure abutting relation adjacent the outer panel wall ll when the

members

8 and 9 are permanently assembled together at their flanges, provides an extremely stiff and strong drawer head or door construction, even though the

members

8 and 9 are made of light gauge sheet steel, and withcut the use of bolts, rivets or through welding.

Thus, the improved drawer heads and doors will not flex, Warp, weave, twist, spring or bow convexly or concavely in use. Essentially, the

edge walls of the drawer heads or doors are formed of two thicknesses of metal. The panel wall likewise is comprised of two thicknesses of metal with sound insulation material compressed therebetween, thereby eliminating the difficulties involved in a construction having spaced single thickness panel walls which are drum-like in character. Furthermore, as indicated at 29 in Fig. 11, the portion of the inner panel wall i l around the recessed panel portion ill forms with the edge wall flanges l2 and i6 and outer panel wall I! a trapezoidally shaped, rectangular, hollow, channel or cavity at the outer periphery of the structure, between the inner and outer panel walls surrounding the recessed panel portion l5, which increases the stiiiness and rigidity of the structure.

Furthermore, the sound insulation material is held compressed between the pressure abutted panel walls, efficiently deadens the sound produced when the panel wall is struck; so that a dull, soft, thud-like noise is heard rather than the high pitched metallic noise which results when prior art structures are struck.

The compression of the sound insulation material is obtained by proportioning the dimensions 7 of the flanges 52 and it of the outer and inner panel members t and 9 such that when assembled in the absence of a sound insulation material sheet l9, the inner surface of the recessed panel portion E5 of the inner panel member 5 will lie closely adjacent and parallel to the inner surface of the panel portion I l of the outer panel member 8 with only a slight clearance space therebetween of less width than the uncompressed thickness of the sound insulation material sheet Accordingly, the present improvements provide'a light gauge sheet metal drawer head or.

door structure which may be readily fabricated in accordance with production methods at minimum cost to provide a stiff, strong, sound insulated, box-like, double panel, structure composed of only three members, namely, an inner sheet metal panel member, an outer sheet metal panel member rigidly secured to the inner memher, and a rectangular sheet of sound insulation material compressed therebetween. Thus, the improved construction avoids the described difficulties heretofore present in prior art constructions.

Although the present improvements have been described in detail with respect to the drawers and doors of kitchen, base and wall cabinets, the improved construction is equally applicable to the fabrcation of metal desk drawers and doors, and to the manufacture of metal undersink cabinets and other types of metal equipment and furniture.

.In the foregoing description, certain terms have been used for brevity, clearness and understanding; but no limitations are to be implied therefrom beyond the requirements of the prior art, because such words are used for descriptive purposes herein and not for the purpose of limitation and are intended to be broadly construed.

Moreover, the embodiments of the improved structures illustrated and described are by way of example and the scope of the present invention it not limited to the exact details of.

construction of the various parts.

Thus, sheet metal drawer heads and sheet metal doors have been described and illustrated in detail herein, and the improved structure is hereinafter generically termed sheet metal drawer head construction, such term including drawer heads, doors, and the like.

Having now described the features of the invention, the manufacture and assembly of preferred embodiments of improved sheet metal drawer head constructions, the preferred steps of making the same, and the advantageous new and useful results attained thereby; the new and useful devices, constructions, arrangements, combinations, subcombinations, parts, elements, methods, steps, operations and procedures, and reasonable mechanical equivalents thereof, obvious to those skilled in the art, are set forth in the appended claims.

I claim:

1. Sheet metal drawer head construction adapted after complete assembly to be spray cleaned and surface treated with liquid reagents and then painted, including inner and outer, light-gauge, sheet metal, panel members; the outer panel member comprising a rectangular panel wall terminatin at its edges in inturned flanges, the inner panel member comprising a rectangular panel wall terminating at its edges in outturned flanges telescoped within the outer panel member flanges; there being a recessed rectangular panel portion formed outwardly substantially to the depth of said flanges in said inner panel wall and comprising a major portion of the width and height of said inner panel wall; said recessed panel portion lying closely adjacent said outer panel wall with slight clearance space therebetween, and the remainder of said inner panel wall around said recessed portion being spaced from the outer panel wall by said telescoped flanges and forming with the flanges and outer panel wall a hollow cavity between the inner and outer panel walls surrounding said recessed portion; a sheet of compressible, sound insulation material in said clearance space and compressed between said recessed panel portion and said outer panel wall; means joining said inner and outer panel member flanges together, holding said recessed panel portion and said outer panel wall in pressure-abutting relation and holding said sound insulation material sheet compressed therebetween; the joined panel members forming a rigid rectangular panel structure having top, bottom, and side edge walls and inner and outer panel member walls; the top, bottom, and side edge walls being formed by said telescoped flanges of double thickness metal; and the portions of the panel member walls lying closely adjacent each other with the sound insulation material sheet compressed therebetween, providing a sound insulated, double thickness metal panel wall.

10 2. The construction set forth in claim 1 in which the recessed panel portion of said inner panel wall and said outer panel wall are flat and parallel with each other.

CHARLES O. MYER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,028,575 Legnard et a1. June 4, 1912 1,136,071 Weiss Apr. 20, 1915 1,262,822 Maul Apr. 16, 1918 2,299,908 Leash Oct. 27, 1942 2,307,121 Erickson Jan. 5, 1943 2,438,035 Buhman et a1 Mar. 16, 1948