USRE15366E - Souri - Google Patents

Description

W. E. DRESSEL' DECD.` THEDnEsszL coLLAPsmLE nm muuncrunm COMPANY. Asslsnsf.

coLLAPslsLE mm ron PNEuMmc Imam -v Y APPLICATION FILED IULYI9 1920. Relssued May 30, 1922.

INVENTOR W E. DBESSEL.

ATTORNEYS "Permit @Eme Danseur. oonnnrsr'enn nim'Menoraorunrnef'eoivt'riiiqfzfor sm.' Louis, Mrs-y Original No. 1,264,622, dated April 30,1918, Serial To @ZZ whom t 'may comme: q Be it `known that VABREN Dnnssnn, deceased7 late a citizen of the United States, andjresident of Edwardsville, in the eounty of Madison and Stateoi Illinois, invented eertainnew and useful improvements in. Collapsihle Rims for Pneumatic Tfires,',.oi1whioh Y the 'following is a specification,v reference -being had to the acoornpanying vdrawings.

rlhis invention relates' to y rirnsdor ,pnew matic tires,and .particularly such rims; as are -used for quick detachable tires; andthe general object of the `invention isitepnovide; a rirnof this nature constructed eta, plurality Hof' seetions,. so..A connected to ,eaeh other that the: seetions inaybef collapsed and thuszde ,htached from ,within apneurnatie ytire ,or ored outwardf into engagement vthe `tirejand held= in this position.; 1: a, A v:further obj ect ot he invention; the provision of a riniof this character rnagde up of seetions'rfall oi the seotions ,having'detachable interlocking engagement with eaoh other, the seotionsihaving abutting engagenient with each otheri when infplaoe andtrvio o theseotions being provided With enacting means forloekingthe 'sections in theiren- ,-gaged end-:operativenositioni 1 Prende e ferr Simple ehsaelyefmfstfutd :and @edili Operated rim teffth'isnhereter in which the.e sections', shall Joe-positively `4 locked when zin, postion`5 iso; that gtheyfeannot becorne; ae'zidentally unloeled and detached and in which ineens areprovdedgfor, Wedging the sections into interloekingrenaagenient with each other. Other. objects will f appear in the' course-0f the `following description.

H isinvfention is .illustrated inftheaoeompanyingdnawingsf njwhichg i Figure 1V is a side elevation; otF

rellene if le: trim COnStruQted in.aecordaneemthhis inyention and? partly in vsection m ,the showing in ,dotted l1nes ;one section.;

:. rOSftim,A

'Efgure is avraginentary-ienlarged longi tudinalfsection of the meansf for :joininggthe seetfion tothe section f Figure A3 is a longitudinal.A

, section oii gthe means for loinirlg4 thel'gseetion A to-the; section .C5 il r.

" struction shown in igure 2; and I' No.- 146394, filed February 5, 1917. Application for reissue led July 1 9, 1920. -Serial'No .-v3l97,51-7. z? l 1 i I .I Figure 5lisla,topiplanv View oi the con`V @rudio-@Shown 1n Figure 3.* f

f. Referring .to these figuren; it will` be seen that vhis improved collapsible rim comprises three sections, A, B and C, the sections B and being shortenthan the section A.

ThesectionA at one -end is formed With altrensverselyv, extending slot 10, the slot having parallel beveled Walis; 11, andtexftending any: desired distancefaoross the rim. lreterablypne Wall. ofthe slot :isA increased lm thltlleSS thickening ithe, rim section at Ethis porn@ asl at,flrthisgthiokening being aeeoniplished: either ,loyriveting orf otherwise attaching a gseparate: pieeeto, the' rim section,

or; forming. .this thickened i portion inte` I.grallyjvith zthe rim section.-

y next'adjacent:section- B at its end, y.vliicheogij oins With the section A,l is formed, as i-,llfustnatedj in Figure 2 With-av tongue .13 haningthe, sanieiwidth as; theslot 10, this yE,tongue1 projnotingi beyond the end M of the rinn i s e ct1onl 2 .and `the tongue being either ,attaohedgtoor formed integral with the rim tsection f. `.LThe.extremity of the tongue vis .detleoted outward,. as ,at 15, and then-nior- Ward7 as at 16. This portion 16 is' beveled ,fupomone faee ,.a s yat 17,so as to tagainst f thebeyeledface 11 of thewallyor slot 10, end the QnPQS'd-.fece or surface .et they p01-` G isheiieledas at 18, so as to t against ueled faeeg 1l) onfthe opposite .Wall 'of y,tljiefslot 10: ;,".[h1is .theptwolfaces 17 and 18 farei parallel to; Veaerh f other zand.; preferably :i have l an angle goii about 2 0A degrees. Preferably, E the )thickened ...portion .12 projects v:slightly :,heyondg .theaeeof the adjacent @Wall 11,: sor that when. the .-deiiected E end of thetOI-igue 13, Eis: fitted AWithin the slot 10, the enten faeefoithe portion V16; will bearagainst this slightly, ,pnojeeting 4edgexof -fthe thickened portiong 12; as will bezseen in 'Figure 2. fllhe oppositeV end lof the: section-AB .is ,also providedgtvith Ja slot `1O having beveled Walls Landa rthickened,portion .12,1V as hereto- @foreidesorilzed andfthe adjacent end of the seotio-n(G;, which isotheloelring seotion, is ,piorrnedg .yvith..a;r tongue 13 provided with A ldeiiee ted ,portions 1.5; and 16,' these Adeflected ,.'portion's 115; and, 16 being provided A:with the heyeled aoes- 17: 3 and 18, as heretofore densbeis @battle-,Section G nterlOGkS with thesection B, in exactly the same manner as the section B inter-locks with the section A.

The confronting or adjacent ends of the sections A and C are formed as follows and as illustrated in Figure 3. The section A is formed with a slot 19 corresponding in a way to the slot 10, but the opposite Walls 2O of this slot are preferabl f beveled reversely'to the walls 11 of the slot 10 and are at anangle of about ten degrees. The section C has formed on it or attached to it, a tongue 21, which tongue is disposed inward of the body of the section and the extremity of this tongue is provided with an outwardly and longitudinally extending locking lug 22 that is adapted to be inserted in the slot 19, the opposite edge faces of this locking lug 22 being beveled at an angle of about ten degrees to correspond with the bevel of the slot 19. The abutting ends of the sections A and C are beveled, as at 23, this bevel being' parallel to the beveled faces 20 :of the slot 19 and being'at an angle of about "ten degrees, `while the abutting endsof the sections A and'B and of the section B with C are radial, these radial ends being desigi'iatedf24f.V Pivotallly mounted upon lthe inner face of the section A vis a locking caI'n 25 which Vis illustrated as pivoted upon a` pin, or like member '26', the lface of this locking 'cam being eccentric to this pivot pin, as at 27 ',so* that as the locking cam is turned from its inoperative to' its operative position, it

'will not only extendover the inner side of 'the longitudinally-projecting lug 22, but'will bear againstthe end face 28 of thetongue4 21 and exertian end" thrustl fon same in a direction tending to securely hold the 'lug A22 in theJ v'slot '19.

-is first "inserted in the tire, the Vsection B fsnug 'enga To4 apply the'rirn to a tirejthe'sectio'n lA is then Ainserted and connected 'to tlie right the *cooperating 'interlocking portions -on "said's sections andthe `section C is then in- "seeti'onjI Cis swung outwardly'from the posifis detachably connectedto theupfper end o-f 'thefscti'on A, looking at Figure 1,d by intionsho'wnin brokenflinesin Figure `1` and sertingjthe 'lugl22 on the tongue 21'of sec tiene inthe Slot 1e in these-emulated thenlswin'ging theflocking device oricam 25 intos'uch 'a' position that it' will lap over "the/lug' 22-a1diexert pressure on thetongue iii-' a? direction tending to hold the eo- .operatin'g inclined walls of the lug 22 and 's1otl9'in lsnug engagement with each other andnlsoj" tending to4 holdthe cooperating inclinedsurfaces en the other sections in e' 4locking' device;.' or cam A25 is n n ai i nent.- l'To remove'lthe from tachably connecting the free end of the mov-i able section C' of the rim to the adjacent section or portion of the rim is applicable to any type of transversely split tire rim in which one portion or section o-f the rim can be swung inwardly towards the center of the rim to facilitate the withdrawal of 'the rim from the tire in which it is arranged.

It will be obvious that it is very easf,T to apply this collapsible iim to a new tire, o-r to a tire which would ordinarily be so tight as would make it difficult to apply the usual rim. Furthermore, 'it will not be necessary to use tire tools for the purpose of forcing the tire onto a rim, and thus a vsaving in tires will be effected. Furthermore, it is o-fte'n the case that a tire ruste on a rim and in that case it is extremely :diicult to yforce'the tire oil' of the rim, Whereas no difficulty of' this kind is experienced withthis Vcollapsible cut,'as at '23:,and consequently, whenthe =is Abroken at this'v point to remove the' rim from the tire, the tendency will be to retract to asmaller circle. The angle' of the faces that is, thefsaine angle at Whichthe is f'hand end' portion 4o-f section LA means of 20`perinits the sections of the rimv :to be sepia*y rated reladily,'anjd when the rim is' replaced within the tire, thel key and rim sectionsle :ceive equal pressure when the .tire is inflated.

Another function of the cam ory locking device 25 is to hold the keyor lug 22 in its' seatI when the ltire -is deflated, asffor instance, When the tire is punctured. Without this locking device 25 there would be danger that the rnn sections might'jar apart with While the'sections B and C of thefrini are 'illustrated as being shorter than thei section .126 the tire deated :and fall from thefstire."

A, it is to be understood that :they might all t be ofthe samesizel4 n isfnot desired a) lima the inventif-mim any particular formation of the rim for en gage'ment with, the tire, as thenieanswhere- 'by the rim may be collapsed or the rim seotions held in engagement with each other may be applied equally Well either to a straight sided tire or a tire of the clenoher typ-.

avin thus described this invention, what is c aimed is:

1. A collapsible rim for tires, comprising i a plurality of segments, one of which yhas a tongue at each end, another ofwhoh has a slot at each end, and the third of which has a s'lot at one end and a tongue at the other end, one of said slots having parallel walls Y beveled outward and towards the adjacentv end of its segment, the coacting tongue having a locking lug beveled to fit said slot, and a cam pivoted on the end of said last mentioned segment adjacent said slot and adapted to engage over said lug and bear against the end of the tongue.

2. A oolla sible rim for tires, oomprisin a plurality o? arcuate segments, one of whic has a tongue at each end, another of which I

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