US2098028A - Suction cleaner - Google Patents

Description

Nov. 2, 1937. c. BURKHARDT 2,098,028

SUCTION CLEANER Filed March 26, 1936 2 Sheets-Sheet 1 lNVENTOR lllzana'os Burkfiardl ATTO RNEY 1937. c. BURKHARDT sucmon CLEANER Filed March 26, 1936 2 Sheets-Sheet 2 Giza/Ides Bur-Mara! ATTO RN EY Patented Nov. 2, 1 937 I UNITED STATES PATENT OFFICE-f SUCTION CLEANER china Burkhardt, Canton, om. assignor to The Hoover Company, North Canton, 01110, a

corporation of Ohio Application March 26, 1936, No. 70,953

4 Claims. (Cl. 183-51) One of the important elements of a suction cleaner is a filtering dust collector or dust ba into which the airstream, with the dust particles entrained therein, is discharged, the air being filtered through such bag while the dust particles are retained and collected thereby. Such dust ll bags are usually in the form of a bag of cloth or paper, or other suitable filtering medium, and

are usually provided with a narrowed mouth which is detachably connected to the outlet from the body of the cleaner and suitably supported at the upper end from the handle of the cleaner.

In suction cleaners of this type the outlet is usually at the rear, or near the rear, of the main body of the'cleaner and therefore spaced rearwardly from the point at which the pivoted handle is connected to the cleaner body. Be-

cause of this spacing, it will be appreciated that, if the bag is attached'directly to the, outlet of the cleaner, it will be subjected to both longitudinal tension and to bending, as the handle is swung up and down in use. I

One of the objects of the present-invention is 'to provide a suitable means for connecting and supporting a suction cleaner bag which will entirely relieve the bag of tension and bending due to the pivotal movement of the handle relative to the body of the cleaner. A further object of the invention is to provide means for connecting and supporting a suction cleaner bag which will relieve the bag of strains and which at the same time will permit relative movement of the bag with respect to the handle, and thereby lessen danger of injury to the bag when it is accidentally bumped against the body of the user,

-or furniture, or other obiecta- Further objects of the invention are to provide means for-connecting and supporting a dust bag of this type which can be economically manufactured, which willbe durable. and which can be readily installed upon cleaners already manufactured without material changes of such cleaner structure, and which will facilitate replacement of the bag or other parts. Still further objects of the invention and features of novelty will be apparent from the following specification when '55 read with reference to the accompanying draw-' ings, in which an embodiment of the invention is illustrated, and in which:

Figure 1 is a fragmentary view in side elevation of a suction cleaner embodying the invention, the handle being in its lowermost position; 5

I Figure 2 is a fragmentary plan view, with parts of the handle and nozzle broken away, of the structure shown in Figure 1; t

Figure 3 is a fragmentary view in vertical section, taken on the line 3-4 of Figure 1; 10

Figure 4 isa fragmentary view in vertical section, taken on the line 4-4 in Figure 1;

Figure 5 is a reduced fragmentary view in side elevation, similar to Figure 1, but showing the handle in its raised or storage position; and 15 Figure 6 is a reduced view in side elevation similar to Figure 5, but showing the handle in the lowermost position of the usual working range of handle positions.

In the drawings, a suction cleaner body, com- 20 prising a wide, forwardly-positioned nozzle 1 I, a fan chamber portion l2, having a discharge outlet at the rear thereof, and a motor casing portion M, is mounted on front wheels l5 and rear wheels I, the latter wheels being provided 25 with adjusting means I] by which they may be moved up and down relative to the cleaner body in order to lift it, and soadjust the nozzle II to 'and from the underlying portion of the floor covering which is to be cleaned. A rotary agi- 30 tator II is preferably provided and mounted in the nozzle l I, extending transversely therein, and driven by a belt I! from a pulley, not shown, which is mounted on the shaft of a vertical axis motor which it will be understood is mounted in 5 the motor casing portion ll, a fan 20 being also mounted on the motor shaft and positioned in the fan chamber l2. The bottom of the cleaner body is preferably formed with an opening I 'through which access may be had to the motor 40 shaft pulley and fan and for removing the belt, such opening being normally closed by a'removable cover plate 2|, held in place by a latch 22. A rigid handle 23, which is preferably tubular, is

provided with a ball 24 at its lower end, which 45 is pivotally connected to the sides of the suction cleaner body at the point 25, such point of connection being near the center of mass of cleanerbody so that the cleaner will be substantially balanced when it is lifted by means of the handle. The 60 ball 24 is preferably provided with a split socket 2, in which the lower end of the handle 23 may be clamped by abolt 21, and the upper end of the handle is preferably provided with a curved grip portion 2|, a conductor cable 29 for supplystruction thereof constitutes no essential part of ing electric power to the motor being preferably attached to the handle 28, through a cover plate 30, adjacent the grip portion 28, and a suitable electric switch 3i being likewise carried by said plate, it being understood that suitable connections are provided and extend downwardly in the handle 23, to connect the cable 29 and the switch ii to the motor. It is also preferable that clips 32 be provided on one side of the handle 28, upon which the cable may be wound and stored when the cleaner is not in use. Suitable means for controlling the position oi. the handle are provided. being shown herein as a slotted plate 83,

pivoted at 8% to the inner side of one fork of I the handle ball 26 and normally urged in a Y counter-clockwise direction by a spring 35, a stud 36 on the cleaner body being engaged in the slot in the plate 38. With such construction, it will be understood that the handle will be permitted free pivotal movement throughout a definite range upwardly from. the position shown in Figure 6 and that when the plate member 38 is depressed, the handle may be moved to the horizontal position shown in Figure. l, or may be moved to the vertical or storage position shown in Figure 5, in which latter position it will be releasably held. v

All of these parts, so far described, are of well hown construction and are not shown or described in detail inasmuch as the specific conthe present invention. The parts may vary greatly as to detailed structure, relative size and location, and the present invention, which relates to the connection and support of the dust bag, may be embodied'in any suction cleaner which comprises a main body portion having an outlet for dust laden air and having a handle pivoted to such main body portion at a point spaced from the outlet of the main body portion of the cleaner.

According to-the present invention a dust bag 31, formed of porous paper, cloth, or other suitable material, is provided with a reduced mouth 38 at its lower end which is detachably connected to a ring 39, which in turn is detachably connected to a ring 40, having a portion thereof connected by a hinge ii to a ring 62 which is detachably connected by nuts 43, or other suitable means, to a flange 44 on the outlet l3 of the body of the cleaner. The means for connecting the bag mouth 38 to the ring 39 preferably comprises an expansible clamping member mounted in the ring 39 for clamping the bag mouth against an inner concentric ring, such expansible member being contracted by a lever, the construction corresponding to that shown in U. 8. Patent 1,919,001, Harry B. White, issued July 18, 1933. The ring 39 may be detachably secured to the ring 40 by a bayonet lock Joint or by a simple latch, or by other suitable means. A flexible,

' extensible tubular member 45 is provided to connect the ring 42 to the ring 40 and allow for their moved with the handle 28, an arm 66. is provided on the-ring l0 and is connected pivotally at ill? to a link 48, the forward end of such link being detachably connected by a wing headed screw 49 to the .stud 34 upon which the slotted handle-posia,oee,osa

tioning plate 33 is pivoted to the bail 241. From consideration of Figures 1, 5, and 6, it will be apparent that the rings 39 and 40 will be swung upwardly as the handle is swung, upwardly and will generally follow the movement of the handle, remaining substantially perpendicular thereto at all positions of the handle between. the horizontal positions shown in Figure l and the vertical po-' sition shown in Figure 5. The upper end of the bag 31 is preferably open, as manufactured, the material of the bag adjacent such end being gathered and folded over, and then held closed and supported by a clip 50 which is slid laterally upon the folded portion and which is detachably secured to a hook 5i engaged therewith and carried by a tape 52 or other suitable supporting means, the upper end of which is attached to the handle 28.

It will be apparent that with this structure the bag will remain at all times substantially parallel to the handle, with the bag mouth at all times substantially perpendicular to the handle, while, at the same time, the upper end of the bag is loosely supported from the handle so that it can yield laterally and to some extent in other directions upon contact with the body of the user, furniture, or other objects. The bag will thus be relieved almost entirely from bending strain due .to movements of the handle and it will likewise be relieved from endwise tension. It will also be apparent that the bag can be readily replaced or removed for cleaning, and that the bag supporting structure, comprising the rings 39, ill and d2, together with the flexible tube 55 and operating link 48 and wing headed screw 49, may be readily attached to cleaners heretofore manufactured, as a substitute for the bag and bag ring usually attached by nuts such as nuts 43 to the outlet flange did, no alteration being necessary except the substitution for the usual stud 34 of a stud which is threaded to receive the wing headed nut it.

It will be understood that many changes may be made in the details of construction and in the size and shape of parts within the scope of invention which is defined in the following claims.

What is claimed is:

l. A suction cleaner comprising a body provided .with a discharge outlet and having an upwardly extending handle provided with ball arms pivoted to said body, a ring carried by said outlet and pivotally connected thereto at a point spaced from the pivot of said handle bail arms, a flexible tubular member connecting said ring and said outlet, a dust bag having its mouth connected to said ring, said ring having an arm rigid therewith, and power-transmitting means operatively connecting said arm and one of said bail arms.

.2. A suction cleaner comprising a body provided with a discharge outlet and having an upwardly extending handle pivoted thereto, a ring carried by said outlet and pivotally connected thereto at a point spaced from the pivot of said handle, a coupling ring detachably connected to .said ring, a dust baghaving its mouth'detachably secured to said coupling ring and supported at its upper end from said handle, said ring having an arm rigid therewith, and a link pivotally connected at its rear end to its said arm and extending forwardly and pivotally connected at its forward end to said handle at apoint adjacent the pivot of the handle.

3. Asuction cleaner comprising a body provided with a discharge outlet and having an upwardly extending handle pivoted thereto, means controlling the position of the handle comprising .transmitting means for moving said ring with said handle connected to said handle at the point at which said handle positioningmember is secured to said handle.

4. In a suction cleaner, the combination of a body providedwith a discharge outlet and a handle. pivotally mounted thereon remote from said outlet, a dirt bag adapted to communicate with the said discharge outlet, a support for the mouth of said bag having pivotal connection with said body at said discharge outlet, and a link pivotally connected at one end to said bag mouth supporting member at a point radially offset from its pivotal point and at its other end-with said handle adjacent its pivotal mounting on said cleaner body whereby the mouth of said bag will 10 move substantially with said handle.

CHANDOS BURKHARD'I.

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