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Title:
Friction reducing device
United States Patent 2487507
Abstract:
2 Claims. (C1. This application is a division of my application Serial No 417,216, filed October 31, 1941, now i abandoal ned, and relates to friction-reducing drawer guide and alignment means in collapsible containers of the drawer and casing type in which a drawer is slidable in the open...


Inventors:
Philip, Zalkind
Publication Date:
11/08/1949
Assignee:
Philip, Zalkind
Primary Class:
Other Classes:
312/108, 312/334.23
International Classes:
A47B88/00; A47B88/12
View Patent Images:
US Patent References:
Foreign References:
DE496477C
Description:

2 Claims. (C1.

This application is a division of my application Serial No 417,216, filed October 31, 1941, now i abandoal ned, and relates to friction-reducing drawer guide and alignment means in collapsible containers of the drawer and casing type in which a drawer is slidable in the open mouth of the casing. -n -c• mans aeS eretofore in the construction and manufactu0e of collapsible drawer and casing combinations, particularly collapsible drawers and cas- 10 ings of a fibrous material, one of the most difficult elements has been the arrangement of the members s that the elements of each could be co!lapsed for storage or shipping purposes, while at the same time these elements might readily be 15 erected by the unskilled user and arranged for cooperation with each other.

One of the most important accomplishments which have brought into extensive commercial isew collapsible containers of this type was the in-. 20 koduction of reinforcing melmbers for the ends of the basing so "arranged thatg, when th casing wa6serected, the novel means provided for transmitting loads from the top to the bottom of a casing thus prevented distortion of the casing itself, 29 particularly when carrying a load of superposed casings in a stack :Suchele means are shown in my Patent No. 2,1is,oll and others of my patent1s. ..... A type of drawer which may cooperate with this 3l type of casing is shown in my Patent No. 1,946,516.

-Suspension and anti-friction means have also been developed and are in use in connection with drawers and casings of the collapsible variety for the purpose of facilitating the movement of the 3 drawer within the casing. Such types of suspension or friction reducing means are shown in my Patents Nos. 2,233,906 and 2,200,319. -Iriný -addition, strengthening members for the rear end of the casing, in order to insure transmission of compressive loads as well as the closure of the rear of the casing, have been devised.

Such: -elements are shown in my Patent No. 2,159,070.

Other types of drawer Suspension and alignment means as well as drawer stop means have also been devised-and have served further to make drawers and casings of this type commercially successful. Such types of suspensions are shown in my Patents 2,319,283 and 2,337,079.

In the present invention I have disclosed an improved drawer and casing construction which facilitates the operation of the drawer in the casing.

45--77) . 2 An object of the present invention, therefore, s the provision of such means associated with drawer and casing combinations which facilitate the alignment of the drawer in the casing, being associated with the top wall of the casing, which means, nevertheless, permits the collapse and erection of the casing by an unskilled user.

Elements projecting upwardly from the sides of the drawer are arranged to cooperate with the alignment elements of the top of the casing and thus furnish auxiliary alignment: A further object of the invention is to provide g stop means to limit outward travel of the drawer.

dThese and many other objects of the present invention will in part be apparent and, wherenot apparent, pointed out in the following description and drawings, in which: SFigure 1 is a view in perspective, partially broken away, showing a combination collapsible drawer and casing; using the friction reducing and alignment means of the present invention.

Figure 2 is an enlarged detail view of the upper right hand front corner of the casing member of SFigure 1.. hFigure 3 is a cross-sectional view, taken albg lines 3-3 of Figure 2, looking in the direction of the arrows. 50 The 4 is an enlarged view of the rear left Shand corner of the drawer, showing the upper alignment means thereon.

Figure 5 is a top view in perspective of the drawer member collapsed for storage or shipment.

: Figure 6 is a bottom view in perspective show.5 ing the drawer member collapsed and ready for shipment.

Referring now to Fig. 1, I have here shown a casing member 20 having the construction shown in'my Patent No. 2,233,906, and which may have.

40 the' construction shown in my Patents INos 2,118,011 or 2,088,3i5. The casing has a top wall 21, a bottomwall 22, and side walls 23 and 24.

Each of :the walls is.hingedly connected along the lateral edges 25, 25 to. adjacent walls, and the 45 v alls. may be folded around the hinge connections 25 in order to collapse the casing.

The hinge lines 25 may be formed by suitable bend lines or scores in the material or may be made in any other suitable.manner.

50 .The open front 21 of the casing may be reinforced in the manner shown in my patents Nos. 2,118,011 and 2,233,906. The reinforcements may comprise horizontal metallic channel members 55 28 which-.are securely fastened in any suitablemanner over the front edges of the top and bot tom walls 21 and 22.

The drawer 40 may have a construction simila to that shown in my Patents Nos. 1,946,511 2,128,342, 2,152,676, or 2,200,319 and may have back wall 41 and a metal faced front wall 4C The front wall 42 may be provided with a reces 43 for the mounting of a card, and may als be provided with a handle member 44 whicl facilitates removal of the drawer from the casing The handle member, it will be noted, is recessec into the front of the drawer in order that it wil not project when the drawer is collapsed anc therefore so that it will not interfere with thE flat collapse of the drawer.

It will be noted, from an inspection of Figures 1 and 6, that tongues 45 and 46 are hingedly connected by appropriate fold lines adjacent to the vertical edges of the front 42 and that these tongues 45 and 46 may be swung normal to the said front and extend parallel to the lateral edges of the bottom wall 47. This is likewise the case with the tongues 48 and 49 which extend from the rear wall 41 of the drawer. The general structure is such as shown in my Patent Number 1,946,516.

The alignment and drawer stop means which may be utilized at the top of the drawer comprises a glider 200 which is pivotally mounted at 201 on the channel-shaped post 202. The channelshaped post 202 slips over the forward edge of the rear tongues 48 and 49 and may be secured thereto adhesively or by rivets or by prongs or by a bent-over lip or in any other suitable manner.

One of the legs of the channel-shaped member 202 is vertically extended at 203 to provide a suitable support for the pin 201, free of the upper edge 204 of the tongue 48. As may be obvious from a comparison of Figures 1 and 4 with Figures 5 and 6, the mounting of the glider 200 on the post 202 and the securement of the post 202 to the tongue 48 does not in any way interfere with t he collapsibility f the drawer member 40.

In addition and in order to rigidify the rear end of the drawer so that a perfect alignment may be obtained by a proper Positioning of the glider 200, I have provided an angle wire 210 having a pair of extending legs 211 and 211 at opposite ends thereof and the continuous connecting portion 212. The connecting ortion 212 is secured by the channel-shaPed reinforcing member 213 to the upper edge of the rear wall 41 of the drawer in such a manner that the connecting portion 212 is freely rotatable within the reinforcement 213 while, however, it is captured 5. and securely held against the upper edge of the rear wall 4 I.

Normally and during collapse for shipment or storage the angle wire is rotated so that the legs 211 thereof are out of engagement with the 6( flanges of the post 202. When the drawer has been set up for use in the manner heretofore described, the angle wires may be rotated from the position shown by the dotted line 211' to the position shown by the solid lines of Figure 4 where 65 the free ends of each of the legs 211 of the angle wire 210 enter into the space 215 between the flanges of the channel-shaped member 202 and are captured therein.

The legs 211 of the angle wire, by reason of the 70 fact that they are rigidly interconnected by the continuous portion 212 of the angle wire, serve therefore properly to space the tongues 48 and 49 of the rear end of the drawer so that the glide members will be Perfectly spaced with respect to 75 U- each other in order to cooperate in the aligning of the drawer and to operate properly as a drawer .r stop.

a, IThe glider 200 is preferably integrally stamped a 5 from a single sheet of material and comprises a main body portion 220 and an upper flange 221 s Preferably integrally connected to and bent from 0 the main body portion 200.

1 The upper flange 221 has a forward projection or hook 222 and a forward abutment 223 is seI cured to the main body portion 220 of the glide. 1 Also a forwardly projecting finger 224 is integrally I connected to the main body portion 220 of the S glide 200.

The upper surface of the container within which the drawer is to be mounted is provided with a rail 230 having flanges 231 and 232 (see Figures 2 and 3), risers 234 and 235 and a connecting portion 236. The rails are secured to the upper wall of the casing in any suitable manner as for instance, by the integrally formed prongs 240 mounted on the flanges thereof which may be folded over within the upper wall of the casing, which prongs may have the form shown in my Patent No. 2,142,167.

Generally the upper rail 230 of the casing may have substantially the same form as the lower rail 100 thereof with the distinction however that the forward end of the rails on the top wall of the casing are differently formed in order to cooperate with hook 222, abutment 223 and finger 224 of the glide Previously described.

The forward end of the flange 232 of each of the rails is provided with a downwardly extending depression 250 terminating in a rearwardly facing opening 251, the edge of which, 252, provides an abutment against which the member 223 of the glide may stop.

The glide member, it will be noted, is so mounted on its pin 201 that the greater weight is at the rear of the glide, thus tending to rotate the glide to the position shown in Figure 4. When the drawer is mounted in the casing, as may be seen in Figures 1, 2, and 3, the height of the rear wall t5 of the drawer preferably is such that the pressure f the flange 221 of the glide member against the under surface of the flange 232 of the rail 230 will serve to straighten out the glide member so that it extends substantially horizontally. The 0 forward end of the glide member tends, however, to remain in contact with the under surface of flange 232 of the rail 230 irrespective of the position of the drawer within the casing.

The angle formed between flange 221 of the 5 glide member and body portion 220 is so arranged that it will fit into the angle formed between the flange 232 and the riser 235 of the rail 230.

Since corresponding gliders on each side register with corresponding portions of the rail of Sthe drawer on each side so that the flange 221 of each glider abuts against the outside riser of each rail on each side of the top wall of the casing, the drawer is Perfectly positioned by the glider within the casing against any wobbling thereof or misalignment. In addition, as the drawer is pulled forward within the casing, the hook 222 of the glider enters into the opening 251 of the forward edge of the flange 232 of rail 230, while the abutment 223 comes to rest against the rear edge 252 of the opening 251.

Since this action occurs on both sides of the drawer, this operates Perfectly as a drawer stop member to prevent unintended removal of the drawer.

n the event that it should be desired, however, with respect to completely remove the drawer from the casing, a portion st then as the drawer is moved forward and before leg of said hereindescribed, the user of the drawer may de- 2. In a de press the fingers 224, 224 of each of the gliders said stop thus preventing the hook 222 from entering into secured to s: the opening 251 and thus permitting the drawer tion rearw to be completely withdrawn. forw d por Since the glider is so arranged that the major forward po portion of its weight is rearwardly of the pin 201 then nothing need be done with respect to the glider when the drawer is inserted into the casing since the drawer will enter quite readily, the 15 The folio' glider being in the position shown in Figure 4 file of this when the drawer is completely withdrawn. U Many other embodiments and uses of my invention should now be obvious to those skilled in Number the art. Accordingly, I prefer to be bound not 20 567,693 by the specific disclosures herein but only by the 618,957 appended claims. 1396,084295 I claim: 1902,795 1. In a device of the class described, a foldable 2,128,342 drawer comprising a side wall and a rear wall 25 2,184,829 formed as a fiat blank and adapted to have a 2,210,019 common edge forming a rear corner of said 2,319,283 drawer when said drawer is in an erected posi- 2,337,079 tion, and a stop means carried by said side wall adjacent said rear corner, including a securing means for securing said stop means to said side Number wall, and a rotatable angle wire having a leg 496,477 permanently secured to said rear wall but rotative thereto, said securing means having daped to engage and grip the other angle wire when said drawer is in ion so as to render said rear corner 7 rigid.

vice as set forth in claim 1, wherein leans comprises a member pivotally aid securing means and having a por*d of said pivot of greater weight than forward thereof so as to bias said tion upwardly. PHILIP ZALKIND.

REFERENCES CITED wing references are of record in the patent: NITED STATES PATENTS Name Date mith ------------ Sept. 15, 1896 Kelly ---------------- Feb. 7, 1899 Wright ------------- Nov. 8,1921 Wolters ---------- Mar. 21, 1933 Zalkind ------------ Aug. 30, 1938 Zalkind ----------- Dec. 26, 1939 Zakind------------ Aug. 6, 1940 Zalkind ----------- May 18, 1943 Zalkind ----------- Dec. 21, 1943 FOREIGN PATENTS Country Date Germany ----------- Apr. 24, 1930