US2245760A

US2245760A - Vacuum cleaner

Info

Publication number: US2245760A
Application number: US282372A
Authority: US
Inventors: William J Clements
Original assignee: CLEMENTS Manufacturing CO
Current assignee: CLEMENTS Manufacturing CO
Priority date: 1939-07-01
Filing date: 1939-07-01
Publication date: 1941-06-17
Anticipated expiration: 1958-06-17
Also published as: USRE22238E

Description

Juvne 17, 1941. w. J. cLEMENTs VACUUM CLEANER Filed July 1, 1959 2 Sheets-Sheet 1 W. J. CLEMENTS June 17, 1941.

VACUUM CLEANER Filled July 1, 1939 2 Sheets-Sheet 2 mf @Zeman/5,

fittorzgg/S.

Patented June 17, 1941 VACUUM CLEANER William J. Clements, Chicago, lll., assignor to Clements Mfg. Co., Chicago, Ill., a corporation oi' Illinois Application July 1, 1939, Serial No. 282,372

13 Claims. Cl. 23o-117) My invention relates to an improvement in vacuum cleaners.

One purpose is the provision of an improved vacuum cleaner of the type in which the dust bag, motor and fan are enclosed within a housing. Another 4purpose is the provision of an improved -fan and motor unit for use iny such housmg.

Another purpose is the provision of a fan and motor unit which can be unitarily removed from such a housing.

Another purpose is the provision of an improved I fan structure.

Other purposeswill appear from time to time in the course of the specicatlon and claims.

I illustrate my invention more or less diagrammatically in the accompanying drawings wherein: l

Fig. 1 is a longitudinal section of a cleaner casy ing with some of the mechanism inside elevatio Fig. 2 is a sectional view of the strainer and fan parts;

Fig. 3 is a rear elevation with back cover removed;

Like parts are indicated by like symbols *35 throughout the speclcation and drawings.

Referring to the drawings, I generally indicates a tubular or cylindrical housing, which has at one end a ring 2, including a ange portion 3 which ts about the exterior of one end of the housing I. 4 indicates any suitable screws or lother securing means whereby the ring may be secured to the housing. 5 indicates a spider structure extending generally radially inwardly from the ring and supporting the inner hub Ii, herein shown as unitary with the spider and ring. 1 is any suitable removable covering or cap having any suitable air outlet apertures 8. 9 is a ring of rubber or the like set within a central aperture of the hub B. I0 generally indicates a shield or lring having a circumferential flange II and a central air aperturev I2, which element forms part of the fan assembly. Extending inwardly from the inner edge of the ring I0 are supports I3, which carry an inner ring I4, which extend inwardly in the form of ribs, as at I5,

and are provided with ledge abutments I6, which receive the motor eld laminations Il. The bearing sleeve I8 is mounted upon inwardly extending arms I9 unitary with the above described structure. Any suitable anti-friction bearings 20 may be mounted in the sleeve I8 to support the motor shaft 2|, which carries any suitable motor armature rotating within the field laminations I'I.

22 is an abutment ring abutting against the' opposite end of the group of iield laminations I1. Any suitable means, for example bolts 23, may be employed for clamping it and for thereby holdingy the laminations II against the abutment ledges I 6 of the members I5. The ring 22 also is adapted to support any suitable brushes as upon thebridge 25, which brushes cooperate with the commutator of the motor. 26 is a generally cylindrical outer extension of the bridge 25, which penetrates the central aperture within the rubber sleeve 3.

Any. suitable switch structure may be used, generally indicated as 28,29, the details of which do not of ,themselves form part of the present invention. I illustrate, however, two separate outwardly extending manually manipulatable switchmembers 30, 3l. 32 indicates any suitable conductive line extending to any suitable source of electric power not herein shown.

Mounted upon the flange II of the ring I0 is a fan housing structure, which includes two nesting cylindrical housing members 40, 4I, carrying inwardly 'extending partition walls 42, 43, each centrally apertured as at 44, 45, the central aperture 'beingbordered by an inturned

lip

46, 41. The two members 40, 4I are secured as shown in Fig. 2. They provide a fan housing separated into two main compartments. In order to sup-` port the ring III for ready endwise removal'from the housing I, I'provide' a yielding compressible ring 48 of rubber or the like. Unitary locking means, such as the screws 49, may be employed for locking the rubber ring 48 between the flanges 50, 5I, of the members 40 and 4I, respectively.

Mounted on one face of the wall 42, I provide an additional partition 53, the outer edge of which terminates short of the inner face of the member 4I. 'Ihis partition is centrally apertured as at 54 and carries a plurality of xed vanes 55, preferably somewhat inclined from the radial.

Mounted on the outer face of the partition wall 43 is an air filter assembly, which includes the ring 60, which may be riveted as at 6I to the wall 43. vThe ring is provided with an inclined portion or ledge 62 and an' intermediate portion 63, provided with air inlets 64. The ring 60 carries at its outer edge the unitary cylindrical wall 65 having a ledge 55 adapted to receive a filter structure, including

rings

61, 68, having abutting outwardly extending

ilanges

69, 10, secured together as by'an enveloping circumferential rubber ring 1|, generally `li-shaped in cross section. yInwardly extending

ilanges

12, 13 embrace any suitable filter structure, which may be formed by layers of

mesh

14, 15, with any suitable intermediate packing confined therebetween. The filter ring may be locked in position as by the inwardly offset portions 11.

The motor shaft 2| is shown as having an extension 80 into the fan housing. It may be positioned inrelation to the bearing 20 in any 83, and 84. Mounted on the shaft extension 80 and spaced by the sleeve 8|, are

fan discs

85, 86, each carrying a plurality of arcuate vanes 81, which

support rings

88, 89,' apertured at 88a and 89a. The inner end of the shaft extension 80 is screw threaded as at 90 and receives a locking nut 9|, abutting against a washer 92 and a sleeve 93, the fan disc 86 being coniined between the

washers

83 and 84. v

It will be observed, as in Fig.' `2, that, in response'to the'rotation of the motor and of the fan structure,.air is drawn inwardly in the direction oi'- the 'arrows through the illter and the foraminous plate 63. Air then passes through Vthe aperture 45 and into the iirst fan, being directed voutwardly toward the inner face of the wall 4|. It then passes inwardly along the ilxed bailles 55 through the central aperture 54, and

also about the edge of the baille 53, and is then directed outwardly by the second fan. Air is deilected by the ring I0 and passes about the above described motor structure and then upwardly through the spider 5 to the air outlet passage 8, thus cooling the motor. n 4

It will be noted that the entire fan-and motor assembly canbe readily and unitarilyre'moved l from the housing by simply releasing the screws 4 and the below described runner structure.

||4 adapted to receive any suitable suction inlet y or hose connection H5, which is provided with a bayonet slot I6 adapted to receive any suitable locking pin ||1. ||8 is any suitable carrying handle secured to thevtop of the housing It will be observed that the housing cap 1 i; apertured as at 21 to permit the entry of the conductive connection 32. 'I'he relation between the aperture and the conductive connection is such that the cap 1 can be removed without disturbing the conductive connection. 'I'he

switch structure

28, 29, 30, 3| may also be readily gisconnected from the housing and Withdraw!! It win be realized that whereas I have de scribed and illustrated a practical and operative device, nevertheless many changes may be made in the size, shape, number and disposition of parts 'without departing from the spirit oi my invention. I therefore wish my description and drawings to be taken as in a broad sense illustrative or diagrammatic, rather than as limiting me to my precise showing. .The use and operation of my invention are ras follows:

I provide a unitary open-ended tubular housing to which the opposite ends of the rings 2 and |00 are applied and from which they may be readily removed i1' necessary. Air flows inwardly through the hose connection ||5 from any suitable suction nozzle not herein shown.

This air, lled With dirt, OWs into the interior of the bag |06'and is constrained to ilow through the fabric or mesh oi' which the bag is formed,

there depositing the dust or dirt which it carries. 'I'he air then flows through the filter structure,

which includes the brous material 16. It desired, any suitable disinfectant may be employed to impregnate the filter structure. The air then ported upon the ring 2 and its associated spider."

structure, and since the rin'g 48 is slideable in relation to the housing the entire motor and fan imit, althoughV readily removable, is also sumciently supported in a vibration preventing relationship to the housing l.

I claim:

1. In a motor and fan assembly for vacuum cleaners, a plurality of motor field .laminations,

a motor rotor,l a centrally apertured shield mem' ber at one .side of said laminations, said aperture being bounded by an air directing lip spaced substantially inwardly from the housing wall, a

spider spanning said aperture, a motor shaft bearing in said spider, a motor bearing and brush supporting frame member opposed to the opposite side of the laminations, brushes mounted thereon, a bearing thereon for the opposite end said aperture, a motor shaft bearing in said.

spider, a motor bearing and brush supporting frame member opposed to the opposite side of the laminations, brushes mounted thereon, a

bearing thereon-for the opposite end of the motor shaft, means'for securing said shield and said frame member together about said field laminations, a fan housing mounted on said shie1d,'a centrally apertured partition therein, and fans mounted on the motor shaft at opposite sides of- .said partition.

3. In a vacuum cleaner. a generallycylindrical I exterior housing, means for normally supporting portion oi' said motor, a fan housing' secured to said motor assembly, and a slideable supporting connection between said fan housing and the interior of said cylindrical housing, including a rubber washer secured to said fan housing and' adapted to act as a seal between said fan housing and the inner face of said cylindrical housing.

- 4. In a vacuum'cleaner, agenerally cylindrical exterior housing, means for normally supporting it in generally 'horizontal position, a motor and ian assemblyl entirely contained therein, and

means for securing said motor and fan assembly to said housing, including a ring engaging an end of the housing, a spider in said ring, a generally central hub in said spider, the motor assembly including a portion penetrating said hub, a fan housing secured to'said motor assembly, and. a slidable supporting connection between said fan housing and the interior of said cylindrical housing, including a rubber washer secured to said fan housing and adapted to act as a seal between said fan housing and the inner face of said cylindrical housing.

5. In a motor and fan assembly for vacuum cleaners, a centrally apertured shield member, the central vaperture of which terminates in an inwardly extending, free, air-directing lip, a spider spanning said aperture, a bearing supported by said spider, a motor shaft in said bearing, a fan housing mounted on and supported upon anouter edge of said shield member, a fan on said motor shaft adapted-to rotate within said housing, and a. motor including laminations secured in relation to said spider, said laminations lying within the path of the air delivered across the air-directing lip of said shield member.

6. In a motor and fan assembly for vacuum cleaners, a centrally apertured shield member, the central aperture of which terminates in an inwardly extending, free, air-directing lip, a spider spanning said aperture, a bearing supported by said spider, a motor shaft in said bearing, a ian housing mounted on and supported upon an outer edge of said shield member, a fan on said motor shaft adapted to rotate within said housing, and a. motor including laminations secured in relation to said spider, said laminations lying within the path of the air delivered across the air-directing lip ofsaid shield member, and a ilexible supporting and spacing ring secured in relation to the outer edge of said shield.

'1. In a motor and fan assembly for vacuum cleaners, a centrally apertured shield member, the central apertureof which terminates in an inwardly extending, free, air-directing lip, a

spider spanning said aperture, a bearing supported by said spider, a motor shaft in said bearing, a fan housing mounted on and supported upon an outer edge of Ysaid shield member, a fan on said motor shaft adapted to rotate within said housing, and a motor including laminations secin'ed in relation to said spider, said laminations lying'within thefpath of the air delivered across the air-directing lip of said shield member, said ian housing including a `plurality of generally cylindrical nesting members having opposed outwardly extending flanges at one edge and inward-f ly extendingcentrally apertured -ilanges at the other edge, a iiexible spacing and supporting ring associated directly with said outwardly extending flanges, and unitary means for securing said out wardly extending flanges and said flexible ring to said shield member.

8. In a vacuum cleaner, a generally cylindrical exterior housing, means for normally supporting it in generally horizontal position, a motor and fan' assembly entirely contained therein, and means for securing said motor and fan assembly to said housing, including a ring engaging an end of the housing, a generally central hub, and means for supporting itin said ring, the motor assembly including a portion penetrating said hub, a supporting element of yielding compressible material interposed between said hub and the penetrating portion of said motor, a fan housing secured to said motor assembly, and a slidable supporting connection :between said fan housing and the interior of said cylindrical housing, including a rubber washer'secured to said fan housing and adapted to act as a seal between said fan housing and the inner face of said cylindrical housing.

9. In a vacuum cleaner, a generally cylindrical exterior housing, means for normally supporting it in generally horizontal position, a motor and fan assembly entirely contained therein, and means for securing said motor and fan assembly to said housing, including a ring engaging an ,end of the housing, a generallyl central hub, -and means for supporting it upon said ring, the mo.- tor assembly including a portion penetrating said hub, a fan housing secured to said motor assembly, and a. slidable supporting connection between said fan housing and the interior of said cylindrical housing, including a rubber washer secured to said ian housing and adapted tol act as a seal between said fan housing and the Ain,- ner face of said cylindrical housing.

10. In a motor and fan assembly for vacuum cleaners, a centrally apertured shield member, the central aperture of which terminates in an inwardly extending, free, air-directing lip, av

bearing supported by said shield member, a motor shaft in said bearing, a fan housing mounted on and supported upon an outer edge of said shield member, a fan on said motor shaft adapted to rotate within said housing, ,and a motor including laminations secured in relation to said shield member, said laminations lying within the t path of the air delivered across the air-directing lip of said shield member.

11. In a motor and fan assembly for vacuum cleaners, a centrally apertured shield member, the central aperture oi' which terminates in an inwardly extending, free, air-directing lip, a bearing supported by said shield member, a motor shaft in said bearing, a vlfan housing mounted on and supported upon an outer edge vof said shield member, a fan on said motor shaft adapted to rotate within said housingy'and a motor including laminations secured in relation to said shield member, saidy laminations lying within the path of the air delivered across the air-directing t lip of-said shield memlber, and a iiexible supporting and spacing ring secured in relation to the outer edge of said shield member.

l 12. In a motor and ian assembly for vacuum.

cleaners, a centrally apertured shield member,

' A extending flanges and said exible ring to said th central aperture of which terminates ln an inwardly extending, free, air-directing lip, a bearing' supported by said shield member, a 'motor shaft in saidjbearing", afan housing mounted on :and supported upon'jan outer edge oi said shield Imember, -a fan on said motor shaft adapted torotatewithin'said housing, anda motor including laminations secured in relation to said shield member, said* laminations lying within the -path of the air delivered across the air-directing lip'of-'said shield member, said i'an housingincludlng a plurality of generally cylindrical nesting members having opposed outwardly extending viiariges at one 'edge and inwardly extending A centrally vapertured `flanges at the other edge. a ilegible spacing and supporting'ring associated directly with said outwardly extending flanges,

and means for securing said outwardly 2o shield member.

y 13. In a vacuum cleaner, avgenerally cylindrical exterior housing, means for normally supporting it in generally horizontal position, a motor and ian assembly entirely contained therein, and means ior'securlng said motor and fan assembly to said housing, including a ring engaging an end 4oi' the housing, a generally central hub, and means for supporting it upon said ring, the motor assembly including a portion pene- :trating said hub, a fan assembly secured to said motor assembly, and a slidable supporting con-v nection between said fan assembly and the interior of said cylindrical housing, including a rubber washer secured to said fan assembly and adapted to act as a seal between said ian housing and the inner face .of said cylindrical housing.

WILLIAM J. CLEMENTS.