US1769522A - Vacuum-sweeper construction - Google Patents

Description

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Patented July 1, 1930 UNITED' STATES Psrl-:I aT oFFlcE NORTH 'n.- LosnY, or AKRON, omo

VACUUM-SWEEPER CONSTRUCTION Application med December 30,1925. serial No. 78,333.

This invention relates to vacuum or suction sweepers in-wh1ch the mouth or opening of the sweeper is provided with a brushadvantages, it is the object of the present invention to improve upon such construction to obtain an improved beating and sweeping action. I

Brieflystated,-my invention consists in the provision of a plurality of beating, or beating and sweeping elements which are carried upon a main rotating member or rotor at some distance from the axis thereof so that as the member rotates the beaters4 strike the uplifted carpet a series of separate blows.

The beaters are preferably rotatable upon their own axes so that they do notinjure the car et. f

The 1 eaters may be in many different forms, the preferred form being shown here.- in as brushes, but it will be appreciated that other beaters may be substituted therefor.

In the drawings in which is shown the pre ferred form of the invention:

Figure 1 isa view of any well known or standard form of suction sweeper-equipped with my improved beating and brushing device;

Figure 2 is a section on the line 2-2 of Figure 1;

Figure 3 is an enlarged cross-section of the rotary member showing the manner of mounting the beater therein; and s Figure 4 is a cross-section on the line 4-4 of Figure 3.y

In the drawings, 1 represents the usual head or) frame of a motor-operated suction sweeper, themotor shaft being indicated at 2 and the mouth or opening for the sweeper being indicated at 3. The supporting rollers for the sweeper are indicated at 4. The improved beater is located directly over the mouth of the suction sweeper and is in the form of a' rotor indicated in general by the numeral 5. It comprises acen-v tral shaft 6 which is mounted in the usual bearings 7 at the side of the head1. As. shown, the shaft 6 carries a pluralit of 55 spaced disks or bearing plates 8 which orniy the bearings for the several beater elements.I In the preferred form of the invention, these beater elements are shown as small, rotatable brushes 10 -which are distributed along the 60 shaft and spaced about the rotor 5 at equal angular locations. Each brush is mounted vat one end in a bearing 11 mounted in a disk 8. The vother end of the brush is mounted in a removable bearing 12, the rear ,face of which is provided -vvith a lug 13 which is adapted to enter a slot 14 in thedisk 8. A small set screw 15 secures the bearing in position. 'A brush may be removed for cleaning or replacement by irst lremoving the screw 15 and then lifting out the bearing 12 and the brush. The ends of the brush shafts are preferably seated in friction and noise deadenng bearings 21 which may, in turn, be mounted in a sponge rubber pad 22.' This 75 arrangement serves to secure a quiet operation of the beaters and eXerts'a slight friction thereon to insure a positive brushing action. p l

The rotor is actuated from the motor 4shaft 80 2 by a continuous belt 16 which passes over pulleys 17 at the ends of the shaft 6, being guided by a plurality of idler pulleys 18 located on supports 19 about the underside of the head. Certain of these supports may be spring actuated as shown at 20 in Figure 1 for the purpose of maintaining tenslon in the belt. This construction is considered to be an improvement over prior forms in which' the pulleyfupon the brushshaft is located 9 at the center of the brush. The present arrangement gives a greater e'ective sweeping area as the drive pulleys are located at the ends of the opening rather than at the center.

The features of advantage over. prior forms of suction sweepers will be readily underst d. The rotating beater elements arrange t the periphery of the rotor 5 strike a plurality of rapid blows on the upraised carpet at the mouthof the suction 19 sweeper. The feature of mounting the beatingV and brushing elements so that they may rotate prevents any destructive action upon the carpet. y

The provision of complete disks about the shaft is non-essential. The disks, however, are believed to be preferable, for by their use it is possible for the manufacturer to dispense with the guards 25 which are usually em ploved Vin4 suction sweepers. The arrangemeir of the driving belt asshown is preferred, although any other suitably'located belt may be substituted. Otherforms of beaters may be used in lace of the'brushes and such further modiloations may be made as found desirable or advisable.

What is claimed is:

1. In a motor driven vacuumsweeper, a driven rotor located at the suction openin of the sweeper, 'and a rotatable brush carrie by the rotor at a.y distance from its axis.

2. In a motor driven vacuum sweeper, a rotor located at the suction opening of the sweeper, driving-means for the rotor, a/pluralityof spaced supporting members carried V bythe rotor, and brushes located between the r upon tV e rotor in such a manner as to oil'er a sllght frictional resistance to rotation.

` 4. In a motor driven vacuum sweeper, a driven rotor located at'the suction opening of the sweeper, and a plurality of separate rotatable brushes of less. diameter than the lthe cleaner,

.with the surface of spaced supporting members, and beating elements journaled in fixed positions between the members and rotatable independently of one another, the elements being completely rotatable about their own axes.

8. In a motor driven vacuum cleaner, ay

driven rotor located atthe suction-opening of ing elements carried by the rotor, the axes of the elements being fixed at a distance from the axis of the rotor andat angularly spaced locations thereon, the elements being rotatable completely about their own axes.

9. In a motor driven vacuum cleaner, a driven rotor located at the suction opening of the cleaner, and a plurality of rotatable beating elements of less diameter than the rotor and located with their axes in a cylinder about the axis of the rotor, said elements being rotatable completely-about their own axes.

10. A vacuum cleaner including `a suction nozzle having a driven means adjacent the inlet thereof, anda brush eccentrically journaled upon the driven means to move toward and from the inlet, the journal'of said brush being frictional and permitting the brush to rotate relatively to the driving means by enggerlntof the brush with the surface being c ean v 11. A vacuum cleaner includin a suction Anozzle having .aV driven means a )acentthe inlet thereof and a beater eccentrically journaled upon the driven means to move toward and a plurality of separate beat-4 and from the inlet, the said beater being rotatable completely about its own axis, the journal of said beater ,being frictional and permitting the beater to rotate relatively to the driven-means by engagement of the beater being cleaned.

NORTH H. LOSEY.

rotor,said brushes being arranged in spaced relation along the rotorand with their axes arranged in different angular on. n

5. In a motor driveni vacuum cleaner, a driven rotor located at the suction opening of positions there- .the cleaner, and a rotatable beating element carried'upon the rotor, the axis of the beating element being'fixedlyvdisposed at a distance from the axis of the rotor, rotatable completely about its own axis.

6. In a motor driven vacuum cleaner, a driven rotor located at the suction opening of the cleaner, and`a plurality or rotatable beaters carried by'therotpr, lthe axes of the beaters being in fixed positlons upon the rotor and located lat a distance from the axis of the rotor and distributed along the rotor in different angular positions about the rotor axis1 the elements being completely rotatable about their own axes. l

7 In a motor driven vacuum cleaner, a driven rotor located at the suction opening of the cleaner, said rotor including a plurality the element being A

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