US2523821A - Cabinet drawer carriage - Google Patents

Description

Sqn. ze, 195o M. Fox 2,523,821

CABINET DRAWER CARRIAGE Filed Sept. 4, 1944 zg`- Z; Z8 f f1/Z Patented Sept. 26, 1950 CABINET DRAWER CARRIAGE Martin Fox, Chicago, Ill., assigner to The Seng Company, a corporation of Illinois Application September 4, 1944, Serial No. 552,601 4 olainrls.V (c1. 45-7n This invention relates to cabinets or desks provided with drawers, and more particularly to an improved carriage for attachment to the back of a drawer to facilitate its movementv in or out of the compartment.

It is a common experience that drawers heavily laden with papers, tools, or the like, are diicult to slide in or out of their compartments and also that when a draweris quite fully extended yfrom its compartment, it tips downwardly so that itis in danger of dropping out. For this reason it is very diiicult to see into the extreme back end of the drawer unless it is provided with rather complicated and relatively expensive slide equipment.

The primary object of the present invention is to provide a simple and inexpensive carriage that may be attached to the back of a drawer and make it very easy to slide.

A further object of the invention is to provide an antifriction carriage provided with a bracket having a stop extending upwardly from the back of the drawer, so as to engage a crossbar at the iront of the desk when the drawerl is y part of my application Serial No. 512,094, filed November 29, 1943, now abandoned.

The invention is illustrated in a preferred embodiment in the accompanying drawing in Which- Figure' l is a broken longitudinal sectional View of a cabinet and drawer utilizing the invention; Fig. 2, a rear sectional view taken as indicated at line 2 2 in Fig. 1; Fig. 3, a fragmentary plan sectional view taken as indicated at line 3-3 of Fig. 2; Fig. 4, an enlarged fragmentary sectional view of one of the brackets,

similar to that shown to the left of Fig. 2; Fig. 5, f

an enlarged fragmentary sectional view of the rear adjusting mechanism shown in Fig. 1; Fig. 6, a fragmentary side elevational view showing a modied mechanism for adjusting the height of the lower rolleryand Fig. 7, a fragmentary 2 sectional view from the rear, showing the bracket illustrated in Fig. 6.

In the embodiment illustrated, a desk or cabinet 3 is provided with the usual drawer 9 having ay front panel I0 and a rear panel II. The cabnet is shown provided with a pair of longitudinally extending top tracks I2 and a pair of parallel bottom tracks I3. The drawer is preierably three or more inches shorter in length than the compartment into which it nts, as is the common practice in desks.

In the drawings, the drawer is shown with similar antifriction carriages at each corner so that it is only necessary to describe one. It will be understood, however, that for light drawers one antifriction carriage may be suiiicient, if it is disposed at the center of the rear panel II, and centrally disposed upper and lower tracks are provided.

The antifriction carriage is preferably of the general shape of the right angle triangle bracket I4, having a front flange I5 to enable it to be secured to the back panel of the drawer with suitable screws I6. Preferably the flange I5 extends'upwardly above the back of the panel Il, to provide a stop I'I, which is disposed so as to contact the cross-bar I8 of the desk, when the drawer is drawn to extended position. However. the drawer may be completely withdrawn from the desk, if desired, by raising the front end `of the drawer until the sto-p I'I tips under the cross-bar I8. v

A- top antifriction roller I9, preferably with ball-bearings, is journalled on the rear extension of the bracket I4, slightly below the stop Il, so as to travel along one of the top tracks I2 of the desk which may be of wood, if desired. The lower antifriction roller 2I is journalled on a slotted arm 22, which is slidably mounted on the bracket I4 by means of headed studs 23. As best shown in Figure 4, the upper end of vthe arm 22 is bent to provide a iinger 24. Preferably a nger 25 is struck from the bracket VIII vabove the'nger 24, and is tapped to receive a bolt 26 provided with a locking nut 2l'. The lower end of the bolt has a shoulder to abut against the iinger 24 and a reduced shank loosely impales the finger. A washer 28 is held in place by an enlarged head 29 on the lower end of the bolt. It will be readily understood that the roller 2l may be raised or lowered to make a proper lt between the tracks I2 and I3 by loosening the lock nut and turning the bolt 26.

In the embodiment illustrated in Figures 6 and 7, the lower roller 2l is journalled on a rock arm 30, which is pivotally mounted on a bracket at 3|, and may be raised and lowered by loosening a lock nut 32 on a bolt 33, which makes a threaded connection with the member 30, and a swivel connection with the bracket I4, as indicated at 34. If desired, the rock arm 30 may be in the form of a bell crank, so that the bolt 33 would be horizontally disposed and more clearance provided at the lower rear end of the bracket. A recess is formedv in the bracket for movably receiving the lower roller.

The foregoing detailed description is given for clearness of understanding only, and no unnecessary limitations should be understoodV therefrom, for some m'odications will be obvious, to those skilled in the art.

I claim:

1. An antifriction carriage for desk drawers adapted to be slidably mounted in a drawer-compartment, comprising a metal bracket adapted tobesecuredto the back of a drawer, a top roller journalled in the upper portion of the bracket and having itsY axis permanently held in one position with relation to the bracket, an arm pivot- @ly mOllIlted in its longitudinally central portion on the lower edge portion of the bracket, a bottomv roller rotatably mounted on said arm adjacent one4 end thereof, a laterally extending ear on the side ofthe other end of thearm and having' a threaded opening, a laterally extending ear on the bottom' of the bracket normally spacedfrom but directly opposite said ear on the arm, an adjusting screw threadably mountedin the arm ear opening and rotatably mounted butv held against longitudinal movement inthe bracket ear,A said bracket having` a recess in its lower edge to movably receive the bottoml roller,y whereby upon rotation of the adjusting screw the axis ofv the bottom roller will be selectively movedV up and, down in, saidrecess with relation to the bracket.

2. An antifriotion. carriage for desk drawers adapted to be slidably mounted ina drawer compartment, comprising a metal bracket adapted to be. secured to the back of a drawer, a to-p roller rotatably mounted in the upper edge portion of the bracket and having its axis permanently held in one position with relation tothe bracket, a laterally extending ear iixed to the lower portion of said bracket, an arm pivotally mounted.v at its mid; portion to said' bracket, a bottom roller on one end of said arm and a laterally. extending ear on the other end thereof, and an adjusting screw threadably mounted in the arm ear and` rotatably mounted in the bracket ear, wlflerebyr upon rotation of the adjustingscrew theaxis of` the drawer to which it is adapted to be secured, a top roller journalled in the rear end of said bracket upper edge and having its axis permanently held in one position with relation to the bracket, a front flange xed to the front end of said bracket and extending above said bracket upper edge and above the top of the top roller when said bracket upper edge is horizontal, a laterally extending ear xed on the bottom of said bracket, a movable member pivotally mounted on said bracket for movement in a plane parallel to the plane of the bracket, a bottom roller journalled on one end of said movable member, a laterally extending ear on the other end of said movable memadapted tobe slidably mounted in a drawer com- 1;, partment, comprising ametal bracket adapted to be secured to the back of a drawer, saidbracket having an elongated upper edge extending longitudinally rearwardly with relation to. a," desk ber, and an adjusting screw threadably mounted in one oi said ears and rotatably mounted in the otherrear, whereby upon rotation of the adjusting screw the axis of the bottom roller will be seleco tively moved up and down with said one end of the movable member.

4, An antifriction carriage for desk drawers adapted to be slidably mounted in a drawer compartment, comprising a metal bracket adapted to beV secured to the back of a drawer, said bracket having an elongated-,upper edge extending longitudinally rearwardly with relation to a desk drawer to which. it is adapted to be secured, a top roller journalled. in therear end of said bracket upper edge andhaving its axis permanently held in one position with relation to the bracket, a laterally extendingv ear xed on said bracket, a movablemember pivotally mounted on said bracket, the axis of said pivotal mounting passing through the bracket so that the movable member has movement in a plane parallel to the plane of the bracket, a bottom roller journalled on one end of saidmovable member, a laterally extending ear on the other endof said movable member, and an adjusting screw threadably mounted in one of said ears and rotatably mounted in the other ear, whereby` upon rotation of the adjusting screw the axis. of the bottom roller will be selectively moved upand down with said one, end of thev movable member.

MARTIN FOX.

REEERENCES CITED The followingY references are of recordy in the le of'fthis patent:

UNITED STATES PATENTS Number Name Date 353,640 Nourse V Nov. 30, 1886 403,938Av Hoogerzeil May 28, 1889 838,037 McLean Dec. 11, 1906 1,388,851 Corde s Aug. 30, 1921 2,223,071 Koch Nov. 26, 1940 FOREIGN PATENTS Number Country Date 19,084 Greatlritan v 1907 504,459 France Apr. 15, 1920 France, Mar. 22, 1921

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