US2508405A - Vertically adjustable table - Google Patents

Description

May 23, 1950 Filed April 5, 1946I P. LAZARD VERTICALLY ADJUSTABLE TABLE 2 Sheets-Sheet 1 n Paul. LHZQED ATTORNEY May 23, 1950 Filed April 5, 1945 P. LAZARD VERTICALLY ADJUSTABLE TABLE 2 Shets-Sheet 2 W k 2 ll lor l INVENTOR PA UL LAZARO ATTORNEY Patented May 23, 1950 2,5%,405 Peteureswc-s.;

vER'rmALrl-YAnmsmnu TABLE I?.autLazard;S Luxemburef LuxencnhnrgI stemmi,-mblietaveeoteueusetmt Ratentexpiresdanuary 22,. 19.65--1 Theobjectnf invention isa convertible.. table .adapted to. .be Audiilsfteel in.. height tol fori'm selectivelitalow tableA or; regulen table.

It hasbeeu proposed before...to hide the.. more or less, unsightl adlustment means. (risticiitables.`

by. a..,frame.xedly, attachedfto. the table top.. Such.. at. frame howeven, is. most objectionable in.tatleswithextension leaves as .used for in.-

creasi-nggthe. area. .of the. teble top,l since the frame. interferes with the manipulation ffind movementsv ofV said"extensionleevem l My invention afvoidstiiis drawback by providing. means fbradjustng such; egfrenievertically rela.- tive to seidk top so that in the high 11gf3s1ti0nofthe, top. .the trame, ceu bef,- lowered; to. permit .free movementfo extension leavesl whereas in the lompostifou ,oi. thetopv vthe frames-canarie;- raised. soies to; hide not only: alhtheadjustment ineens.,l f

butalse-the narrow circumferential srfacesof Qtherfeaturesf. and: advantages. ofmy v inven.

tiem l.wiil appear. the followingy specificationA in. connection with ,thefeceompanying.. draw-ingsy showing-` some embodiments; oi. the invention by: way. oeexample.

In these drawings:

FiguresglandpZffare longitudinal vertical sections through a table in accordance with the invention and showingf. the. .tablein its V"high and low positions, respectively;

L 31'1 s r s ondn :s ction l end view .t mgure 1s a cor e p I g e a 45panelfi' which, in' turn'. rsupports the table top"l for which purpose the ioljlersj, I 2 Tof the. uprights traveliin thevgi'oovesi; provided in sadliirlel` of the table in its high position;

Figure 4 is-e similar viewv ota modication with the frame in its low position relative tothe extension leaves;

Fieinemyis' ay partiar sectional; view, on atowhickiit .isccnnected ,by .a system .oi Vtenons and mortises.. it whichv allow. limited. vertical sliding.. movement oftiie framewhim-.by meansof. ai... systexrtof latches or snrine.controlled v sliding. .bolts. one `een immohilizef. fram-e. lli relative. to. thepanelii inthe. high position of seid.-

Unden these..4 conditions. the table can:N

larger stalel .of the' enitodimento'f 'igureA 4v-.with the i'ra'meiii its" high position relative to the. extensifdn' leaves gure 5' shows in vertical'sectiontan arrange merit`- applicable to the modication shown in; Figure 4;

Figure 6 shows amedi-fied formof construction of the uprights;

Figure?! is@A s. .plan view. shozwi-nga tebiewith (o1. stt-se);V

' the.lclour-nweufdland. unwardlmoyementsi oi the" tehle the. center-plate Qfteble top beingomittedi..

Figure 8..shows .verticelv section, mechani.- f cal deteilfformiiigna/rtof thesiistemshown in.;

Figure 'L v y In the exemple. `Sllioijvn inFigures l and 3. the

tahlecomprises e .base pila/te. l termine; a vs1-i1;1po1:t,...

and. provided tutti. legs v which, may 10e..v eithee straight or cur-ved depending upon .the.particu1ap period style adopted... 'heeteble could, for. exel ample,` com-prise either. a single-central legit or twofoefour, straight leSf tisvslfiowrrnory curved` legst. Hingedtethisbeseplateontrensversefaxesi. nnksr; Whichyi Y 1 time, ere interesse@ between." theiaforeseid #base plate and the table top. In the examplepshowm areI vtif-ie, tilftelile uprights;

this: top,l cem-pese@ et; theV tuoi superimposed teneis or.: plates 5;;5it' iS supported .itsfglower position by au1indenenderitaframeeconstituting?. -20- fa -iaiiiing-:insidei which belthetheefiat toni andi;

thefuerights ere eouceeledzin they low..=- posiz-.-

tici-1: Figurer 2t..

Theiirprights. supp ort the; framesit for" exam-ple by .frm-allers .tgnivoted itoeti'ie vuizmielits' endf adapted? nto roll .inf-.tite longitudineil-A grooves-3 provided on:

the. innerefeoe ot thevinamef.

The upeights-i. in their' Vertical-.pios'iti'ong v.- ell the. high position Yof inguine l`; mayloelimmobilizedvk ca'riy` at their' I upper-1 endsthe'rollers which, on 'approaching theffhiglhf'pos'ition, liitthe-top rele-` tive'iy to the fram-e and thusjmakeH-pos'siiole thev extension of the leaves constituted 'byf the two@- p-arts 55, 5" oftlieftop, Fer obtaintrigthese relalaterallyl reietiveto the rollers 9`.` as shown.

In the; example shown in; Figure 4 the tiltable; uprights 3, #provide a'direct support. for.l the.`

while .the frame' fi's' adapted .to .be .adjusted tov two different levels'relative to the 19a-hel 1l i With fratrie.-` y l be adjusted in the .following threey positions..

.(1).- Lowi position witlithefextension. leaves extension leaves displaced automatically during iiconegeleidtl 3 (2) High position with thek extension leaves concealed: l

(3) High position with the extension leaves spread out.

According to Figure 4A spring pressed bolts i. e. snap bolts with calote-shaped heads IUI Vengage into calote-shaped sockets |02 of theframe I4. Vertical downward pressure on the frame I4 disengages the bolt head I 0I from the socket |02 and lowers the frame I4 from the high position of Figure 4A in which it overlaps the exten'- sion leaves to the low position of Figure 4.

The return of the frame I4 to the high position relative to the panel -I I can be brought about automatically at the end of the downward movement of the top as shown in Figure 5. For this purpose the extensions I 5 of the tiltable uprights 3 and 4 when the latter are being lowered can be made to abut against-lugs I6 of the narrow'sides' of the frame I4, thereby lifting the latter.

Instead Vof using rigid tiltable uprights, as

shown in Figure 6, uprights made of two parts" Il,` I8 may be used, which are connected by meansV4 of thehinges I9. This gure shows an intermediate position clearly' illustrating the collapsing of these uprights. Springs and locking means associated with the 'hinges or directly with the uprights' can be provided for ensuring the rigidity of the uprights while they occupy their vertical position-and hold the table' top-in the latters high position.

movement to and from each other on said base, a slide guide'on said frame, runner connections on the upper ends of said uprights slidable in said guide, and extensions on the upper ends o1' said uprights on which said leaves rest, whereby the top is moved vertically relatively to said frame to a Aposition above the frame as the uprights are moved to vertical position to permit extension of the leaves.

2. A table having a top adjustable from the height-of a low-table to the height of a regular table comprising, in combination, a base, legs to support the base at the height of a low table to form with said table top a low table, uprights pivotally mounted at the ends of the base for movement betweena vertical position and a position above and substantially parallel to the base, each ofvsaid uprights having a'length such'as to sup- In theexample shown in Figure '7 in plan view'r (with the tofp Somitted) andsh'own in detail in Figurev 8, (the top bein'g broken away to expose the frame) the :tiltableupright 3 is connected by means of the iron bracket 23 vto the articulation 2I provided with two vertical rollers VI2 and supporting a horizontal-wheel 20 which moves along the channel 8 by which theItalian style Vextension leavesv 5, 5' are supported onthe' articulation 2l. The wheel 20:'mounted in the track 22 which is mounted slantwisebeneath the extension leaf 5 urges the latter to move away. from the center or closer to it, respectively, during. the

movements ofthe tiltable upright 3 during which movementsV the table Visthus simultaneously raised or lowered. TheA automatic displacement of theY extension leaves and frame relatively to each other could be brought `about by other.V

means than the-sliding means and a system of articulated rods or levers may be used, as will beV other hand the materials used for the panel, base. and other partsof the table may be greatly di-.

versied: For example, wood, metal, plate glass, plastics, etc., or any combination of materials, as well .as any decorative materials, may be used.

What I 'claim is: 1. A table'the top of which'is adjustable from the height -of a low tableto the height of a regular table, said tablecompris'ing, in combinationl a base of substantially `the height of saidlow'Y table, a top comprising two connected extensiony leaves, al frame normally surrounding'the edges of said top only when the leaves'are notextended,

means for adjusting saidtop'to-said two'men tioned heightsy comprising av pairv of uprights hinged adjacent the of said base for folding :port-said top at a regular table height when positionedI substantially' vertically, but movable from said vertical positionsubstantially in parallelism with the base to leave the top superimposed'on said base in the low table position, guides on the top, means on the upper ends of the uprights slidable and rotatable in said guides to permit movement of the uprights to the positions aforesaid, and means for limiting the tilting movementl of the uprights to the vertical po` sition aforesaid.

3. A -table having 'a top member adjustable from the height of a'low vtable to the height of "a regular table comprising,- in combination, a basel member, legs to sulpport the base at the height of' a low table vto form with said tabletop member a' low table, uprights having sets of' connecting i pivotally mounted adjacent the ends of one of the said members for movement between a vertical position anda position above and'substantially parallel to theV base member, eachof said uprights having a length such as to support said top member vat a regular table height-when positioned substantially vertically, but movable from said Vvertical position substantially in parallelism with the base member' to leave the top y member superimposed `on said base member in the low table position, guides on the other of said Vmembers, the other setfof 'connections of the uprightsbeing slidable and vrotatable in said guides toV permit movement-ofthe'uprightsfto the'positions aforesaid, and means for limiting the tilting movement oi the uprights to the vertical position aforesaid. PAUL LAZARD.

REFERENCES CITED The followingreferences are of record in the "file of this patent:

UNITED STATES f PATENTS Number Name Date' 144,769 Kade Nov. 18, 1873 366,783 Marshall July 19, 1887 940,804 Hanson' Nov. 23, 1909 1,058,300 Hall Apr. 8, 1913` 1,476,389 Blank Dec; 4, 1923` 1,901,108 Landow Mar. 14, 1933 2,061,662 Ferney Nov; 24, 1936` FOREIGN PATENTS Number Country Date` 908,851.; France-4 4--. "Oct, 29,1945

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