US2236870A

US2236870A - Knockdown cabinet

Info

Publication number: US2236870A
Application number: US248932A
Authority: US
Inventors: Derman Harry
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-01-03
Filing date: 1939-01-03
Publication date: 1941-04-01
Anticipated expiration: 1958-04-01

Description

April 1, 1941. H. DERMAN KNOCKDOWN CABINET Filed. Jan. 3, 1939 INVENTOR l /A RR) DER/MAN 9,4141" 9 ATTO R N EY V Patented Apr. 1 1941 UNITED" STATES PATENT oFFic v Harry Derman, Laurelton, Long Island, N. Y. Application-January 3, 1939, Serial No. 248,932

2 Claims.

This invention relates to closets or cabinets of the type and kind composed primarily of cardboard or corrugated board, comprising four primary parts, that is to say, a top wall part, a combination bottom and partial front wall part, aback and side wall part including front door frame portions and a door-or closure part, and the object of the invention is to provide a cabinet of the character described with means associated with the flanges or front wall frame portions of the side walls of the cabinet forming longitudinal grooves at the sides of the cabinet for receiving the side edges of a sliding door or closure, and primarily a cabinet 'of this class wherein the grooves terminate short of the lower end of the cabinet and open into the interior thereof below the lower front wall of the cabinet to provide free movement of the lower end portion of the door or closure into the bottom portion of the cabinet, and especially a closure of the flexible or single-face corrugated type; a further object being to provide the lower free end of the flexible corrugated closure with a short dowel or rod to which a corrugated sheet is secured to provide free movement of the sheet across the bottom of the cabinet in the movement of the door to an open position; a further objectbeing to provide the upper end of the door with a reinforcing or stop strip cooperating with a finishing strip at the front edge of the top wall to limit the upward movement of the door, and in the provision of means for retaining the door in raised or closed position; a further object be- 1 ing to provide a cabinet of the character described which for the most part is constructed of corrugated or fibre board to provide a cabinet of very economical construction, and with these and other objects in view, the invention consists in a device of the class and for the purpose specified which is simple in construction, efiicient in use, and which is constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the several parts of my invention are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a perspective view of the front'portion of a cabinet made according to my invention.

Fig. 2 is a vertical section through the cabinet with part of the construction broken away and showing the door in a partially open position.

v Fig. 3 is a horizontal section through the cabinet substantially on the line 33 of Fig. 2, and

'of' the side wall parts terminating in inturned flanges l4 forming front wall or rail parts between which is a door opening I5 controlled by the door or closure l3.

In the construction shown in Figs. 1 to- 3 inclusive, substantial L-shaped wood strips I6 are secured to the inner surfaces of the flanges l4 so as to form in conjunction with the flanges l4, grooves I! for receiving the side edges of the door or closure I3. The strips l5 extend from the upper edge'of the cabinet to a point as at Ilia,

-note Fig. 2, so that the grooves ll open freely into the lower end portion of the cabinet below the upper edge of the front wall part I as clearly seen in Fig. 2 of the drawing, so that the lower end [3a of the door is free to move into the bottom of the cabinet and extend across the bottom thereof in the downward movement of the door l3 to open the door opening IS. The end l3a of the door is curvedaround a dowel pin or rod I8 and secured thereto so as to provide a rounded bearing at said end of the door to provide free movement of the door across the bottom l2 of the cabinet. It will also appear from a consideration of Fig. 3 of the drawing that the corners of the lower end of the door are cut away as seen at I3b so as to provide free threading of the door into the grooves II in the assemblage of the cabinet, and to prevent the dowel or rod Hi from contacting the rails l6.

Arranged upon the upper edge of the side walls of the part I0 is a garment hanger frame comprising a transverse rod I9 coupled with U shaped plates 20 through links 2|. A perforated tube 22 also transverses the cabinet and forms a container for a suitable insecticide crystal acting as a moth repellant. The specific structure of this coupling forms no direct part of this invention and is common in other cabinets of this type, therefore, no further specific showing is necessary.

The top wall part I l includes integral downwardly extending peripheral flanges Ila which are arranged outwardly of the back and side wall and front wall parts. The front flange includes a reinforcing wood strip IIb which forms a stop against which a corresponding reinforcing and finishing strip 23 secured to the door I3 is adapted to strike in the upward movement of the door I3. A suitable coupling device 24 is provided between the strip IIb and strip 23 to retain the door in raised position, so that when the coupling 24 is released, the door I3 may be freely moved downwardly in the operation of opening the cabinet. It will also appear that the upper part I2a really constitutes an elongated flange' which forms a front wall part on the cabinet. This part includes side flanges I2c which overlie the side walls of the cabinet and all of the flanges IIa, I21) and I2c are secured to the wall parts I by staples or other fastening devices as at 24.

Similar fastening devices 24a are also passed through the strip IIb and through the front wall part In or a reinforcing strip 25 secured to the upper edge thereof as will appear in Fig. 1 of the drawing.- The strip 25 also limits the downward movement of the door I3 and will be engaged by the strip 23 as will be apparent from a consideration of Fig. 2 of the drawing. It will be understood that in the knockdown'condition of the cabinet, the flanges or front wall forming parts I4 normally extend in the plane of. the side walls, and the part I2a is disposed upon the bottom wall part I2. The top and bottom wall parts can be arranged upon the collapsed back and side wall parts with the flexible door part I3 arranged thereupon, thus forming a relatively thin elongated package.

In Fig. 4 of the drawing, a slight modification of the construction shown in Figs. 1 to 3 inclusive is illustrated, which consists simply in arrangin groove-forming strips 26 similar to the strips I6 upon the outer surfaces of the flanges I4, rather than upon the inner surfaces thereof.

In Fig. 5 of the drawing, another adaptation of the invention is disclosed wherein strips 21 of what might be termed H-cross sectional form are provided at the. free edges of the flanges I4, one side of the strip 21 having a groove 21a receiving the free edge of the flange I4, whereas the other side of the strip has a groove 21b in which the door is slidably mounted.

A still further construction is illustrated in Fig. 6 of the drawing in which figure a strip of corrugated or fibre board 28 is secured to the inner surface of the flange I4 so as to leave the free edge 28a of the strip free to flex with respect to the flange I4 to form a groove or channel 29 for the reception of the side edge of the sliding door. With this latter form of construction, it will be understood that the free edge 28a is flexed inwardly under tension, thus providing a more or less frictional engagement with the catch device 24, the same will automatically move into the open position, aside from any friction which may prevail to support the same against such movement. In any event, a slight I downward pressure upon the door will move the same into open position during which operation, the lower end of the door will slideacross the bottom of the cabinet. This latter action will, to some degree, check any sudden dropping of the door. In other words, no means is provided for definitely guiding the door across the bottom of the cabinet, except the dowel pin I8 and the inward curling of the door around the pin which will prevent the door from gathering or buckling in the lower front corner portion of the cabinet, in other words, the normal tendency of the door to curl inwardly in the manner which is diagrammatically illustrated in Figs. 2 and 3 of the drawing.

A cabinet of the character described will be strong and durable in construction and will be very economical in construction, bearing in mind that the only reinforcements which-are essential are the strips III), 23, 25- or the equivalent thereof, or in the use of the strips I6, 26, 21 and 28. In assembling the cabinet, it will be understood that the part III is first arranged upon and coupled with the bottom part I2 including the front wall extension I2a thereof, after which the door I3 is slid into position through the upper open end of the cabinet, after which the top wall II is placed in position. It will also appear that a cabinet of this particular construction will be extremely light by reason of the construction employed.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. A knockdown paper board cabinet comprising four unitary detachably coupled parts, one part forming foldable back and side wall parts and front vertical rail portions, another part forming the top of the cabinet and having a front depending transverse rail, another part forming the botom of the cabinet, said part including a foldable upwardly extending front wall part terminating at its upper edge in a transverse reinforcing rail, the other of said parts comprising an elongated flexible door, means on opposed edges of the front rails extending from the top of the cabinet to a point below the upper edge of said front wall forming guide channels parallel to the front rails throughout the length thereof in which said flexible door is slidably mounted, the upper end of the flexible dobr having a transverse reinforcing strip disposed inwardly of the upper edge of the door to limit upward closing movement of the door by engaging the transverse depending rail of the top part, the upper end of the door being disposed rearwardly of said depending rail when the door is in closed position, the lower end of the door extending freely through the lower ends of the guide channels into the bottom portion of the cabinet in moving the door downwardly into open position, interenga'ging means on the depending top rail and the reinforcing strip of said door for supporting the door in closed position, and the lower end of the door bein curled around and secured to a free rod to maintain a normal curved end portion on said end of the door facilitating free movement of the door across the bottom of the cabinet.

2. In a knockdown paper board cabinet of the character described composed of a plurality of detachably coupled unit parts, said parts when assembled forming a rectangular cabinet having a door opening in one wall thereof and guide channels on opposed sides of said opening, a flexible door member controlling said opening, said door member comprising anelongated sheet of single faced corrugated board, a transverse reinforcing strip attached to the corrugated surface of the door member in spaced relation to direction of the smooth surface of said corru-- gated sheet.

' HARRY DERMAN.