US1591335A - Dental unit - Google Patents

Description

2 Sheets-Sheet 1 July 6 ,1926.

o. H. PIEPER DENTAL uun' Filed July 25. 1925 July 6 1926; 1,591,335

. o. H. PIEPER DENTAL UNIT Filed July 25., 1 25 2 sheets-sum 2 Patented July 6, 19 26.

1,,UNITEDST'ATIES a I OSCAR H. PIEZPER, or Manama Nnw Yonx.

i DENTAL UNIT. 1

j Application m d m 25,1925. Serial No. 45,96

My invention relates to dental units of the H type disclosed in Patent #1,376,356,. issued .April 26, 1921, to Oscar H. Pieper' and Al phonse F. Pieper, the object "being to pro? Videfimproved means for enabling' the in j strumeut holder or shelf to be readily ex:

tended and positioned-away"from its sup: porting pedestal in order to increase the range and facility of use of the various tools .andappliances supported on the shelf and connected through flexible cords with the Various supply sources, such as for gas, electric power. and air.- The invention contelnplates a jointedsupportingstructure for the instrument'shelfl which structure will normally securely hold the shelf on the pedestal top and which 'will permit the shelfto be raised and to be swung forwardly of the pedestal and thenlaterally to bring the instruments into. convenient position forthe drawihgs- On the r Fig. fl is a side elevational yiewfofthe upper end of the dental unit with'partof the pedestal andethe shelf structurein sec tion;- v Fig. 21s a sectional ylewonplane 2 2 twig-1; and, p

Fig. 3 is a-plan view.

as that in the patent referred-to, and it has the offset oriex tend'ing part lO at the top andrear for containing the various appliances, as disclosed in'said patents. A repre-.

sents various instruments or tools connected I by flexible cords or, tubes 11{With'air,,gas,

.or; electric controlling deyices 'housed withv p in the pedestal, all as disclosedin vsaid part ent, weights 12 yieldably. holding the cords down in the pedestal? (The cords or tubes j extend through guide thimbles secured in 1 the top 1ft. of the ,pedestaland arrangedin a transverse row in front of the extensio'n ,10'.

Extending downwardly from the pedestal to 14 at; the opposite sides thereof, are'the tu ular guide lugs 15 and 16, through which are slidable the guide rod structuresv Rand R. Each guide rodstructurecomprisesthe with the lower end'oftheguide lug when lower end of each ,rod structureterniinates in 'a stop flangeor head for engaging The pedestal P is of the sauce constructio I therods are raised theidistance' betweenithe I stop flange and the joint being such that the joint will (be just "aboyetthe pedestal"top 14 v00 whenjthestop flange 'ugageswitli the 111g. The-j oint'sho wn is 'of the tongue [and grooye type, although any other forn 'of joint niay v beusedi Y I;

s at. t eir. as; inl ifiib fir support the instrument. {shelf ,2 1,.{,1Se"cn ed" on the shelf are the VerticalIinstrumeritsupporting sle'eves or sockets QQi-Which, during 3Q normal position of the ishelfabove the pedest-a1" top, are in "axial aligiiinenflwith" the thimbles 13 through which the. cordsor tubes 11. extend, thesleeves receiving,thelinstruk, inentsA and holding them inproper 'tion by engagement with their "uppe'ife gee, of seating flanges 23'forn1ed' on the instrument bodies; 5 'i" '75.

The vupper endsof uppeizirod sections are ln reaseddiametertb'pr yide seating shoulders 24 for engaging with; thepedsemi; top to norn'ially" :s upp'ont' thel Shelf in horizontal? position above thetop. In the joints '19 hown; the piv 'r'hingeffaxi's' is parallel" withjthe shelf '2 so that with; the *l l' f ii gf 3 h i ?d oi b fh he Shlf with the instruments thereonfcanberaised until I the i stop flanges 27 engage with f the guide lug's 15gand16, and the-shelf canl'th'eii be swungforwardly and.-.dot'ynwardly on the a joint axes until the upper rod sections-Hare horizontal and resting against the pedestal top 14,theshelf 21 beingfthen in a vertical plane, with the sleeve] 22f'and instruments 7 horizontal -asj shown'inFigQ1 and" Fig. 3. To increase the-adjustability of'the instru 'nient shelf, joints 25 inayjbefprovide'db'e tween theshelfand theuppe'r rod sections e 17 with the aXesof thefjoints at right angles withthe axes of the jonits"19, so. that after 1 the shelf has been? swung-in front'offthe 1 pedestal, theaxes of t he', joint 25will bevertical and me' she1fcanthen be swung laterally, as indicated in Fig. 3, the support.

ing rod structures during suchjlateralswinga ing turning in theguid lugs 15 and ltig re spectively. The shelf lhas thus a wide range of .movement andthe i'ristruinents and tools t -a ca b supp te i con n n P sition for theloperatorg The{thiinbles 125 v are flared and fwell roundecl' at their upper, v

edges so thatthe' cords or tubes finayfrjeadily follow; the movenient of the "shelf "when-"it, is

' us'ted and when the tools' or instr'uinents are being usedi When "the operatori 'is fi'fifii V lowers it to permit,the'iguide;.rodsto:,slide into the pedestal and the plate and instru- 7 position secure on top of the pedestal.

I thus provide simple" and-eflicient means 7 for e rialoling the various instruments and 10 to 'suppoi't'edtin "convenient position for thegoperaton and foriflthe work} to be perfor'mfedi" I dQ JIiQt/f desire'to be, limited to he xam enstrus i n, arrangeme d P" 15 eration shown and referred to, as changes .mQ. l, fii iQI 5 e p ble wh will ame within ithe soope ,orfimy, invention, hi1 laimsg l ws=+ f In a d unit, the combination I of na al estr ment u -P r n Shelf wi ls-a me s, o id" elf; (said supgortin' means; permitting said shelf to 'fi'rst' r e' d 'the'nto, be swun'ggto in- I a v V I ,a dental'I,unit, ithe combination of a 'p'ge, alj 'struoture, instrumentsupporting she'lflsupporting rods normally supporting aid-she f dis an eeidinedes a p, 'dabl'einSaidpedestal to 1d shelfto be, raised, and joints f iinfjfrontfofisaid pedestal. dental innit, the combination of a aninstrument suppprting shelf op; i a ip d stat, ppje f in d, ta1,said rods being shift shelffto be raised, and ,hinged sections for: pershelf to; I be-,-,swung; forwardly or; the pod tal jafterl, raising-{thereof and then 6 bilaterally unit,itneg'combinatio of a rods supported} on saidl pedestal ti'callyjfan instrument support 7 shelf} mounted; on; the upper j end of saidiirqdai meansf for limiting the vupward I t ofsaidfrOds. andjlthelshelf Jthereon, I in},said rodsnormally A red al; n fl d pt a brfe gh abate'psd s'ar pm per i t e gpp Q -Qlbt gfih shelf in front; of said 'i ha d in a 1 1 1 Co bination of a s t t ta 'r s l e sysup prtedr in sa e aL-io has finding, lrtqymentl a hinge 4 i ,inormjaiiywit iaui i the pedestal toj permit s'ai'd rods to wung, orwardly', into; horizontal, Posia od iai ra 'g dihe i z h e y whe a1- .I-r1 1/1. a ooare nwertlcal pos tion wlthin sald sai fed Y i-e ewements thereon will then be in their normal appliance's lto beextended from the pedestal ermittingsaid shelf tobeswung IhIQld', sectibnsQ'and thQ shelf ,thereon to 1 ptled iwlieii,shifted above the tnumentl'shelf at the outer ends r wardly, and a hinged connection between said rods and shelf, said hinged connection coroperating with the; lower ends of said rods to permit lateral swing of said shelf.-

6. In a dental unit, the combinationof a pedestal, vertical guide lugs on the top wall of said pedestal, guide rods islidable' in said lugs, each gui'de rod comprising an upper section and a lower section hinged together, said lower section being normally below the pedestal top, an instrument shelf securedto the upper ends of the upper rod sections to be normally above the pedestal top in horizontal position, said sliding rod structures permitting said shelf to beraised, means stopping the upward"movement ofsaid" ro'd structures when their joints are hinged at their upper'ends to said" shelf. 7 V

and extending downwardlythrough said guide lugs, lower sections forvsaid rodsse' cured thereto by hinged'connections, means at the lower ends of said" lower sections for stopping-upward movement of said j rod 'structures when said hinge connections are raised above the. pedestal top saidi'rod structures b'eing then adapted to be swung 10 forwardl into horizontal position tob'rin' J. n

the instrument shelf into a'fvertical plane in ,front of the pedestal, the hinge; connections' between said rods'and she lf then permitting said rods'to swing laterally to carry 7 said shelf to various lateral positions.

8; a de nt'al" unitgt'he combination ofa pedestal," vertical guide lugs on said pedestal, an instrument supporting shelf, guide rods having connection at their upper ends with said shelf andfextendin throu h said guide lugswherebytsaidshelf and ro'ds may i be raised"and/lowered," extensions at "the lower ends of said guide rods having hinged connection therewitlr and 1 adapted iwvlien raised into; said guideiiugs with'the-"hinged Connections above the pedestaltop to permit iswing'of'fsaidrods into horizontal position to bring said-plate in front of said' pedestal, the connection between said rods and shelfperrnitting horizontal hinge movementwhereby said sh'elf,'aftjer bei'ng brought into positionin frontof'said pedestal, may be swung with saidrods into various lateral iii ns-f 5 Inwitness whereof; I hereunto; subscribe m 'y niame this 22nd day of'Ju'ly,"192'5L

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