Патент USA US2406247код для вставки
Aug- 20. 1946- LJ. CY>WEN _ , "2,406,247. FLOOR CLEANING MACHINE Original Filed may 17, 1941 @W 2,406,247 Patented Aug. 20, 1946 UNITED STATES PATENT OFFICE " Ira June Owen, Laguna Beach, Calif., assignor to Julius H. Kiel and Robert B. Kiel, Wilmette,_ Ill. Original application May 17, 1941, Serial No. 394,007. Divided and this (application April 271, 1942, Serial No. 439,903 4 Claims. (Cl. 306-11) 1 , This invention vrelates to improvements in ?oor cleaning machines and, more particularly, to im provements in tool handle connections whereby a surface treating machine may be manipulated by a user. " The invention is particularly adapted for use with traction and power driven machines of the carpet sweeper-type described and claimed in 2 spaced therefrom a detent pin 5. The studs and ‘detent pins may be anchored in the lugs of the housing in the molding operation or may be otherwise secured. The bolts have a pivotal bear ing surface extending outwardly of the housing a distance greater than the thickness ‘of a cooper ating bail strap and are provided at their outer ends with enlarged head portions 6 forming stops. The detent pins extend outwardly of the housing ?led October 29, 1940, and Serial No. 394,007, ?led May 17, 1941. This application is a division of my 10 and have their outer ends rounded or tapered to provide a cam surface. ' prior application Serial No. 394,007, now Patent The structure hereinbefore described is, ar my copending applications Serial No. ’ 363,345, Number 2,316,709, dated April 13, 1943. vAn object of the invention is the provision of an improved machine and handle arrangement 1 providing easy manipulation of the handle and cooperating machine when in use, and providing a resilient upright support for the handle when the machine is not being used. - ranged to be pushed over a surface to be cleaned by a handle ‘I telescoped at its lower end within a split metal ferrule or receiving member 8, to which it is detachably connected by a bolt 9 pass ing through the handle and opposite sides of the ferrule, The ferrule has its lower end cut away on opposite sides to provide bail strap receiving provision of improved tool handle connections 20 recesses l0 and downwardly extending lugs l I and :2 which, after insertion of the bail strap I3, are for use with molded plastic bodies, and the pro bent around into contact with the lower surface .vision of a simpli?ed structure economical to of the bail strap at its center after which the lugs manufacture. and strap assembly may be spot welded to pro Other objects and advantages will become ap a rigid structure. ' parent from the following detailed description 25 vide The bail strap is preferably of strap metal stock having reference to the accompanying drawing, bent into inverted U shape providing parallel de wherein like reference numerals represent like pending resilient ends. The depending ends of parts throughout the several views and wherein: the bail are apertured for pivotal association with Fig. 1 is a broken top plan view showing the the extended bearing portion of the studs 4 pass 30 sweeper and handle combination. ing through the lugs 3 of the housing. The bear Fig. 2 is an end plan view partly in section of ing surface of the’studs outside of the housing is the device of Fig. 1. widerthan the thicknessv of the bail strap to allow Fig. 3 is a side view of the ferrule and Fig. 4 slight outward ?exing of the bail strap ends. If is a bottom plan view of the ferrule and strap desired, a small spring may be interposed between 35 connections. . the head of the stud and the bail end. Having reference to the drawing wherein the The bail strap ends above the points of pivotal invention is shown embodied in a motor driven connection with the studs are provided with small carpet sweeper, l indicates the machine housing apertures l4 adapted to receive the outer rounded which is preferably, though not necessarily, of the end of the detent pins 5 anchored in the housing. one piece molded plastic type. The housing 40 In this arrangement, when the bail is moved into carries sweeper mechanism described and claimed the vertical position. its ends are forced outwardly ’ in the above identi?ed application which forms by the cam action of the ends of the detent pins no part of this invention, as other speci?c ma until the detent pin registers with the aperture chines may be used. The housing is provided with a contoured top and has a centrally disposed 45 l4 to seat therein and retain the bailand asso Further objects of the invention include the motor enclosing dome-shaped portion 2 provided on opposite sides thereof with substantially par allel vertically extending bosses or lugs 3 afford ing mountings ‘for the tool handle and its con nections. The bosses are enlargements of the housing stock serving as reinforcements for the housing and as substantial supports for the tool handle connections. - The mounting lugs 3 of the housing are each ' provided with a mounting stud‘ 4 and vertically 55 ciated handle in the upright position. . ' The bail strap is preformed with its depending ends substantially parallel so as to fit over the lugs on the housing. In using the device, the handle is swung from the vertical position, wherein the detent pins are positioned in the apertures of the bail, to the normal angle of use. In this move ment ends of the detent pins act as cams to force the ends of the bail strap outwardly along the bearing studs until the detent pins clear the bail 2,406,247 ; 3 7 . stock and the ends of the bail resume the normal su?icient to maintain it in its normal preformed state but if desired aiding springs may be used between the head of the bearing stud and the strap.’ "4 curved top portion provided with a central dome with oppositely disposed reinforcing and mount position. The resiliency of the bail strap metal is ing lugs, a handle structure comprising an in verted U-sha-ped bail of strap metal having ver tically aligned apertures at the ends thereof, means for pivotally mounting said handle over the dome, said means comprising aligned pivot studs projecting from opposite sides of vthe dome - The arrangement desired provides an advan tageous one, especially for molded products. Parts are easily formed from standard metal. and detent pins imbedded in the reinforcing lugs stock and the split clamping ferrule advantae 10 of the housing and projecting outwardly there geously allows for greater tolerance in handle from to engage apertures in the bail strap to re size. Moreover; the ferrule and hail strapv form< a strong rigid structure when the underlying lugs are bent into clamped position and are spot tain, the handle in a vertical position. , 3. Inva carpet sweeper, a molded one-piece housing having substantially vertical sides and a 15 curved top portion provided with a'central dome While the invention has beendescribed in con with oppositely disposed reinforcing and mount nection with a speci?c embodiment, words used ing' lugs,‘ a handle structure comprising an ine are those of description rather than of limitation, verted U-shaped bail of strap metal having ver and practice of the inventionrwithin the scope'of ‘ tically aligned apertures, at the ends thereof, the appended claims may be resorted to without 20 means for pivotally mounting said'handle over departing from the true) scope and. spirit of the I the. dome, said means'cornprising aligned pivot invention in all its aspects. studs projectin'gfrom opposite sides of ‘theidome, I claim: - V I said studs‘having bearing. portions wider than the 1. In a carpet sweeperra molded one-piece thickness‘ of the‘ bail strap to allow for outward housing. having substantially’ vertical sides and a 25 flexing of the bailgends, and projecting detents curveditop, said top being provided with a central disposed vertically‘ above said studs adaptedvrto raised dome’ provided on opposite sides thereof engage in apertures inthe bail when the handle with reinforcing and mounting lugs, a pivotal‘ is swung to a vertical position, said detents having mountingvbolt in each of said lugs'projecting- out- , cam surfaces for movingithe'ends of 'the bail Wardly therefrom to detachably receive the ‘ends; 30 outwardly on the pivot studs inpassage ofithe welded to the strap. ' of a handle bail, a projecting'detent disposed ver-i tically above said mounting-bolt in each of said‘ ' liandle to the vertical. position.» =1, In combination, a molded'one-piece-housing lugs; and an operating handle‘ having ‘a strap-like having, a dome shaped top portion.‘ provided with thickened portions onopposite'sides thereof re; bail straddling'said dome, said bailhaving ver-l . tically aligned apertures in the end thereof for cooperation with said mounting bolt and detent, inforcing and mounting lugs,‘ alignedv pivot studs ~ ‘ projecting outwardly from said lugs,‘ a detent pro jecting outwardly from each of the-lugs and dis the bail and‘ its mounting being so constructed and arranged that the bail may pivot on the mounting bolt during operationrof- the machine ‘ 1 and may be retained in avertical position by the detents and hail apertures when the machine is‘ not in use. ~ ' I _ 2;; In a‘ carpet sweeper, a, molded one-piece’ housing having substantiallyvertical sides and a posed vertically above thelp-ivotistuds, an inverted U,~shaped?metal strap. having its'ends apertured 40 in alignment for pivotal engagement on the pivot studs and for holdingr engagement with the de tents when in vertical position, and means cen trally of said str p for detachable engagement witha handle. ' I . ‘ ' IRA J. OWEN.