US1806643A - ohnstrand - Google Patents

Description

May 26, 1931. E. oHNsTRAND DESK DRAWER LOCK 2 Sheets-Sheet l Filed Nov. 15,.4 1927 May 26, 1931. E. oHNsTRAND DESK DRAWER LOCK Filed Nov.. l5, 1927 2 Sheets-Sheet 2 Patented May 26, 1 931 1Errccirr 'oHNs'TRANng fernen/Moran; New Yonx; Assienonf"mo REMINGTON RAiv'nINoL y vor NEW YORK, N. Y. v

DESKDRAWER 'LOCK i application fneanvember 15,1927. seriarlvaaasiai Y invention relates to improvements lockingfdevices for desks, andy particularly :to i desks havinga series of pedestal; drawers and a: center drawer.

pedestal drawers.` i

Another `object'ofthe invention is to pro.-

vide= a: locking mechanism of f substantially Liunitform which may belreadily mountedonl thefront wall; Yofthe center drawer of a deslnA whichis Isimple in construction, and provided with `locking, member `adapted` to l engage i thedesk in! lockingiposition", which -isalso Viadapted to operate suitable for thepede'stal drawers. .y n A sti-llgfurther objectl oi-the-invention resides in providing a' lockingmechanismforY thecenter drawer of adeskhavin'ga lockingv Team ioperabley 'for cooperation `with fthe "deskv in locking :the center drawer in 1 closed- 4position, while asuitable lockingfmeans for the pedestal drawers; includes a rocker member. mounted inthe deslr for engagement with the rilocking `cam for movement thereby tofset'thefI locking means i for `'the pedestal drawers inpositionto lock these drawersi'n closed po'si ,Another feature of the invention resides in-V ;lpreviding iocking unit for vthe cen'te'r-l drawer of a deslrhavingfa suitable operating detachably receive a key operated locking mechanismadapted to lock the handle if :against movementl when the cam `is' in drawer lockingposition, andthrough the mediumof theicamwserves to'control theposition of lockingmeans Vfor thepedesjtal drawers.-

locking? means 3' Theinjvention, includes numerous other obl tionand association of parts moreparticulfarli lyl pointed outinl the followingzdetaileddei scription and claims directed tothe preferred@ .formiof the invention, itfbeing understodf however, that various changes 1nay*be -mfade i in the relation" between Vthe parts 'whichareA withinthe scope-of the inventionfas herein` lset forth.

In the drawings `forming-'part"otthisfape plication, o

Fig. .1 is l a vertical transverse vsect-ion? through the central portion of afmetalfdejski" showing tlie improved locking Ideviceapplied@L in the" center drawer, jportions being breken*- away for convenience 1n'1llust1ation;"'the' parts being shown inl locked position.v 'A

. Fig@ is aiviewsimilar to Figfl iwithpor- 'j tions omitted illustrating the relation' of `thepartsjin the vunlocked position`.

4Figa Sis `a horizontalse'ctional viewtaken illustrating only one end portion of th'ecen'- adj acent `desk structure adjacent 'pedestal drawer:

Figli is a horizontal ectional'view'through n ter ldrawer in: its 'associated relation with'y theVi portonf'onanf; v

the locking mechanism mountedf inth'e 'rontf wall of the center drawer 'taken' substantially y Fig, 5 is afi-'ont elevation of Vthe.center`v drawer showing-the portions illustratedin tion shown inFig. 6 as applied to the front handleffor lthe i lockin`g`cam constructed to oic the center draweni A Fig 8 is agtransverse section thioughfthe" The leckingimeclianism' of this invention lis2 to 3 inclusive,- "in whichA they des'keincludes' a@ vdesigned `more particularly Vforapplicati'onf" to attopioice desksas showninFigsLwltop section 1, and post sections 2 to which are secured panels or side members 3 adapted to form a rigid frame structure. The desk, as usual, is provided with pedestals at one or both ends thereof in which are mounted a plurality of pedestal drawers 4 in the usual manner. The desk is also provided with the usual center drawer 5 which is mounted immediately beneath the top section 1 as clearly shown in Figs. l and 2 and which, as usual, extends throughout the central portion of the desk.

Suitable channel members 6 are secured to the panels 3 adjacent the front portion of the pedestal sections of the desk and slidably receive vertically movable locking bars 7. Brackets 8 are secured to these locking bars adjacent each pedestal drawer and extend laterally from one side of the bar. On the ends of the brackets 8 are pivotally mounted the locking pawls 9 as shown in Fig. 1 having shoulder` portions 10 for engagement with keepers 11 mounted on the sides of the pedestal drawers 4. These locking pawls 9 have curved extensions 12 extending through openings in the brackets 8 on which is mounted a coil spring 13 normally expansible for retaining the pawls 9 in position to engage the keepers 11 in the manner as illustrated in Fig. 1. The ends of the pawls 9 are rounded as indicated at 14 so Slat the keepers 11 may engage the rounded end and move the pawls downwardly in the event that the mechanism is moved to the locking s osition when the aedestal drawers are o en. P

In the closing movement of the drawers the pawls will be depressed to compress the.

springs 13 and permit the keepers to ride into the locking position shown in Fig. 1 followino' which the s rines 13 will return the b C) latches so as to lock the drawers in closed position. lVhen the pedestal drawers are to be unlocked the bars 7 are moved downwardly so that the pawls 9 are moved below and out of engagement with the keepers 11.

For operating the bars 7 and controlling the locking of the pedestal drawers, there is providedV a bell crank lever 15 pivoted to the desk frame as indicated at 16". @ne end ol' Athis lever 15 is pivotally connected at 17 to the upper end of the bar 7 the opening for the pivot pin in the bar being slightly enlargedto compensate for the movement thereof relative to the lever, while the opposite end of this lever is formed with a lateral extension 18 of inverted V-shaped section extending under the center drawer of the desk as shown in Figs. l and 2. This lateral extension 18 under the central portion or" the center drawer is provided witha plate member 19 for a purpose which will be hereafter described. In a desk haying pedestals at opposite ends the lockingmeans for the pedestal drawers as described above will be duplicated in each pedestal and the extension 18 will extend between the bell crank levers.

The center drawer is provided with the usual front wall 20 formed with an opening in the central portion rotatably receiving the handle member 21. This handle member has a flange 22 engaging the front face of the drawer and holding the member in the proper operative position. A lateral extension 23 forms a handle portion by which the member may be manually rotated to operate the locking mechanism. As shown in Figs. 4 and 5 this handle member is tubular in form and receives a locking cylinder 24, a suitable form of key operated cylinder lock, which controls and operates the locking bolt 25.

A supporting plate 26 has a central portion 27 formed with a substantially semi-cylindrical opening 28 in the lower portion thereof which permits the application of the plate member over the handle member as shown in Figs. 4 and 5. The portion 27 of the supporting plate at one side of the opening 28 is formed with a recess 29 to receive the locking bolt 25 when the handle member is in drawer locking position so that it may be eectually locked against rotation to prevent the opening of the drawer except through the withdrawal of the locking bolt by the operation of the lock with a key. Offset portions 30 are connected to the ends of the central portion 27 and form part of the supporting plate. These offset portions are secured to the front wall 2O of the drawer as shown in Fig. 4 and are provided with lateral extensions 31 having terminal portions to which a retaining plate 32 is secured. The locking cylinder 24 at the rear end portion is provided with a flange 24 which engages against the rear end of the handle member 21'.

A locking member or cam 33 having a peripheral liange is secured to the iiange portion 24 of the locking cylinder by screws or the like 33, and is formed with a central opening in which one end of the retaining pin 34 is riveted. The opposite end of this retaining pin extends through an opening in the retaining plate 32 and receives the holding pin 35 in a transversely extending opening formed therein. This pin 35 engages the back side of the retaining plate 32 and retains the locking cylinder, handle member and locking cam in proper operative assembly in the desk drawer. The flange on the locking cam 33 terminates in close proximity with the front face of the retaining plate so that endwise movement of the handle member and the locking mechanism will be prevented. This retaining plate 32 is provided with an angle plate 32 which is adapted for cooperation with the locking cam to limit the rotative movement thereof by cooperation with the shoulder 33 shown in Fig. 5. When the shoulder 33 is engaged with the soL angle plate.-.32f thepiartsqwill b e.-in.the*11n-f. lo.ol{ ed; E position fatf whichy i timeY L the g drawerA Y may f be, opened.i The handle member 2-1 retained .in set position andv assembled;rela-A tion on the locking oylinderwhich itzreceives; bythe setscrewl as shownin. Fig; .8.;

The lockingmemberfis vformed with a-prow jecting portion at 36 which Iis adaptedtoex- 1 tendfthrough a slot ,137,in the bottomof ther; drawer 5 in the locked positionvoitheparts-l so it will engageA behindv the flange 38 for lockingj eooperationtherewith in locking the` center. drawer in closed. posi-tion.- This flange 38 forms-part of theUshaped member 39 which extends between the oppositeends. of the `deslr-underthe `center drawer' and forms part ofthe frame structure of .theldeslg When the projecting portion36` of the lock-f;

ingca'm ismovedinto-locking position as sition to lock. the pedestal drawers in'l closed position. Whenthe. parts are inthis position thelockinggbolt-Q maybe projected-into the recess 29 in the centralportion Q'Tjof the supportinglplate to preventvmanual opera-- tionr othefhandle-5 member-21. When the l locking cam is in. center drawerlockingposiu tion asshown in Fig.1,.the projection' holds the plate 19.` and eXtensifonh18 ofthe pedestal drawer v locking means depressed drawerin closed position. Whenl the locking cam is moved to the unlocked positionthe looking bars 7 willl move downwardly by the.v actiono gravity and rock the bell crank lever 15 raising theieXtension landY .plate19j into j VVthepositionV shown in FigrZwhich willwper- -mit openingrofthe pedestal drawers. In the construction.: yshownin Figs;y 6y andf( the locking cam 40 .is 7mounted/on the? shaft extension. 41 ot thej` handle member 42, ,the

shaft havingbearing'contact with theftront wall 43 of the drawer the central portion 44 of a supporting .orf'bearingplate This supporting Vor bearing plate is provided, with an oflsetportion 45 paralleljandspaced from the frontV 43 ofthe drawer'at-'on'e sideoff the locking cam 40which'receives oneend of the looking 'cylinder 46.' 'Iheother fend. of thelocking cylinder is' mounted Vi'nan opening :in the rontvof 'the drawer so fthatthe key maybe inserted into' thecylinder for operating the looking bolt 47 'whicliihaslocly ing4 cooperationin one :position with `the lock-V 48-therein asshown inFig. 7.V .Thehandle member is provided with'` a .suitable handler'.

extension 49l by which they shaft extension 41 .N g1.. In a i desk-` drawer the odset; portionl, alsoA secured to the front!v wall i of the;L drawer. VThe free: end-*oi` this projecting; laterally'from thefffront wall43 of 4 7() portionfl isprovidedwithgan extension 52" the;drawer for-supporting the reta-ining'platef 53.1atonejfgend,the opposite end beinggse cured to the bloolr 54 of the'. locking: cylinder; The-lookingcam40 is secured-on thefshaft i 4 1 by ,the lnut155 which retains the handle n membergfin assembled relation and with the bearing `plate' 1- preventsadetachmentof! the handle member from thedrawenfV A fproj ec.-` tion 56. on. the4 cam member 40 is adapted to engage the-block 54 :for ;limiting.;the. rota-p tionof thefhandle memberin one direction.'

understood that a locking'mechanism isfpro- The :camis also formed with a. projecting shown .in Eig. 1 it engages theplate 19 carried by the Yoperating @member 18l land `moves the plate downwardly to vrock the bell crank lever. 15 on its 4,pivot yand raise the locking bars? so that thepawls 9 are moved into po- V vided for thejcenter drawer whichcomr- .Y

prises aI unit assembledon thefront wall-of: the drawer` having-aflocking :memberw operf ated into loekingq and unlocking positions.

through theoperation of `the handlezmember,` i.

and having a lock for lockingthe handle-lever againstQmovement in drawerlockingfposition,

i which locking member controls `and operates;v so .that .the pawls will lock, the f pedestal an independentflocking meansiin the `*desk in pedestal drawers. From; this :Construction the controlofall the drawers and the lock-` ingjthereof is substantially simplified through y.

the l Vsl'ecial relation of the parts described. i WVhatis claimed is Y flock, jtlie g combina-l i tion with a desk having a pluralityioffdraw.-

bar mounted in said pedestal for vertioal'slid-iv i1ig inovement cooperating means on said ,pedestal drawersandfsaid locking bar adapt# edl for locking, engagement insone p OSltion of.

saidbar to Vlock said pedestal drawers in:

a look mechanism for retaining said locking with a portion of the' desk for locking the cen` 'ter drawer', andhavinga projection' forinoving. saidoperatmg member and locking. barA er'sparranged. in` a pedestal, and'azc'e'nterrV drawer adjacent said pedestal, of. `a, locking;

`member in drawer lockingpositiom'said lockling I member,being formed for engagementv lngcam 40 through engagement inthe recess..

with a desk having aplurality of :pedestal .drawers -4 and a center zdrawer, of i a. locking 130 mechanism for said drawers, comprising a shaft rotatably mounted in the front wall of the center drawer, a handle on the shaftin front of the drawer, a locking cam on the shaft inside of the drawer formed to project through an opening in the bottom of said drawer for locking cooperation with the desk, a locking mechanism for retaining said locking cam in locked position, and locking means for said pedestal drawers having an operating member beneath the center drawer adapted to be engaged and actuated by said locking cam for locking said pedestal drawers.

3. In a desk drawer lock, the combinationwithadeskhaving aplurality of pedestal drawers and a center drawer, of a manually operable locking member in the center drawer, key controlled means for locking said member in center drawer locking position,

\ and an independent locking mechanism for the pedestal drawers having a part operated by said locking member to move said mechanism into drawer locking position.

4:. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a manually rotatable locking cam mounted in the center drawer and operable in one position to lock said center drawer in closed position, and independent locking means for said pedestal drawers having a part positioned for engagement with said locking cam in locking position, to move said independent locking means into locking position.

5. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a locking mechanism for thecenter drawer, comprising a handle member rotatably mounted in the front wall of said center drawer, a cam member mounted on said handle formed for locking engagement with the desk, means cooperating with the cam member to limit rotation of the handle member, and independent locking means for the pedestal drawers operated by said cam member. Y

6. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a locking mechanism for the center drawer, comprising a handle member vrotatably mounted in the front wall of said center drawer, a locking mechanism having key controlled means for locking said handle in one position, a cam member mounted on said handle formed for locking cooperation with the desk in the locked position of the handle, and independent locking means for the pedestal drawers operated by said cam member.

7. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a locking mechanism for the center drawer, comprising a handle member rotatably mounted in the front wall of said center drawer, a key operated locking mechanism carried by said handle member and adapted to lock said handle member in one position against rotation, a cam member mounted on said handle member formed for locking engagement with the desk in the locked position of said handle member, and independent locking means for the pedestal drawers adapted to lock said drawers in the operation thereof by said cam member.

8. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a locking mechanism for the center drawer, comprising a supporting plate mounted on the inside of the front wall of said center drawer, a handle member rotatably mounted in said front wall and an element on said supporting plate, means carried by the handle member for locking said member against rotation relative to the supporting' plate in one position, a cam member mounted on said handle member having a portion adapted for locking cooperation with the desk in the locked position of the handle member, and independent locking means for the pedestal drawers operated by said cam member in locking position, to lock said pedestal drawers.

9. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a locking4 mechanism for the center drawer, comprising a handle member having a tubular hub rotatably mounted in the front wall of said center drawer, a locking mechanism mounted in said hub having a part adapted for locking cooperation with a portion of the drawer to lock said handle in one position, a locking cam mounted on said hub having a projection formed for locking cooperation with the desk to lock the cen-ter drawer in closed position when said handle member is in locked position, and independent locking means for the pedestal drawers operated by said cam member in the locked position.

l0. In a desk drawer lock, the combination with a desk having a plurality of pedestal drawers and a center drawer, of a locking mechanism for the center drawer, comprising a supporting plate mounted on the inside of the front wall of said center drawer, a handle member having a cylindrical hub portion journaled for rotation in the front wall and a part on said supporting plate, a key operated lock mounted in said hub portion having a part for locking cooperation with said supporting plate in one position of the handle member, means for retaining said locking mechanism and said handle member in assembled relation in the front wall of said drawer, a locking cam carried by the handle member and formed for locking cooperation with the desk in the locked position of the handle member, and independent locking means for the pedestal drawers operated by said cam member.

l1. In a' desk drawer lock, the'eombination with a desk having a plurality of pedestal drawers and a center drawer, of a locking mechanism mounted in the center drawer having a looking member adapted for looking cooperation with the desk to lock said center drawer in closed position', and an inw dependent locking means for the pedestal drawers mounted in the pedestal having a bell crank lever for operating said means formed with a laterally extending end portion lying in the' path of'movement of said locking member and adapted for operation thereby to move said locking means into position for locking said pedestal drawers. Y

Y ENOCH OHNSTRAN-D.

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