US1907886A - Suction cleaner - Google Patents

Description

D. G. SMELLIE SUCTION CLEANER May 9, 1933.

Filed March 7, 1930 2 Sheets-Sheet l Inc/FY2267" Donafd GJmeZZz -May 9, 1933.

D. e. SMELLIE SUCTION CLEANER Filed March 7, 1930 2 Sheets-Sheet 2 u n V l 4. 6 2? Patented May 9,

PATENT OFFICE 1001mm: a. SMELLIE, or CANTON, omo,

ASSIGNOR TO THE HOOVER COMPANY, OF

NORTH CANTON, OHIO, A CORPORATION OF OHIO SUCTION CLEANER Application. filed March 7,

The present invention relates to suction cleaners and more particularly to the means for adjusting the height of the nozzle of the suction cleaner relative to the surface covering undergoing cleaning. The invention comprises specifically an improved construction by which the front supporting wheels may be raised or lowered relative to the suction cleaner casing that the nozzle height may be varied.

It is an object of the present invention to provide, in a suction cleaner, a new and improved means for adjusting the nozzle height relative to the-surface covering undergoing cleaning. It is a further object of the present invention to'provide a simple, durable and easily operated construction by which the front supporting wheels of a suction cleaner may be raised and lowered relative to the cleaner to vary the nozzle height. Other and more specific objects will appear upon considering the specification which fol lows and the drawings annexed thereto.

Referring now to the drawings:

Figure 1 discloses a side view of a suction cleaner embodying height-adjusting means constructed in accordance with the present invention.

Fig. 2 is a cross section upon the lines 2-2 of Fig.1;

Fig. 3 is a cross section upon the lines 3-3 of Fig. 2;

I Fig. 4 is a cross section upon the lines H of Fig. 3.

In the drawings and in Fig. 1 in particular, an ordinary j suction cleaner is disclosed which comprises the usual'par'ts including a main casing 5, which forms the suction nozzle 6, the fan chamber 7 and the exhaust outlet 8. At the corners of the nozzle 6 wheel pockets are formed by curved walls 9 and 10,

which also serve, in cooperation with bottom plate 11, to form an air-directive passage therebetween for the cleaning air moving fromthe nozzle mouth to the fan chamber 7. The wheel pockets formed by the walls 9 and 10 and by the casing 5 are entirely outside of the air passage, as is clearly shown in Fig. 2. A motor casing, which is indicated generally by the reference character 12, is mounted on 1930. swarm. 433,854.

the main casing 5 and houses the driving mo-.

tor for the suction-creating fan within the fan chamber 7 the motor and fan not being shown. A handle bail 13 is pivoted at its lowerextremity to'the casing 5 and provides means by which the cleaner may be propelled over the surface covering undergoing cleaning. A dust separator, indicated by the reference character 14, is secured to the exhaust outlet 8 by any suitable means such as 15 and functions, in the operation'of the machine, to separate the suspended foreign matter from the air which passes through the cleaner.

The supporting means for the cleaner comprise, at the nozzle end, spaced wheels which are located one within each of the wheel pockets formed at-the sides of the nozzle 6.

These wheels are indicated by the reference characters 16, 16 and are adjustable relative to the cleaner as will be hereinafter described and in a manner which forms the subject matter of the present invention. The rear supporting wheels, of which only one is shown and which is indicated by the reference character 17 are rigidly mounted relative to the cleaner proper by means of a suitable bracket 18 and serve, when the cleaner is ad usted relative to the surface covering undergoing cleaning, as the axis about which the cleaner pivots.

. Referring now to Figures 2, 3 and 4a in particular, each front supporting wheels 16 is shown. rotatably mounted on a bearing 19 which is itself eccentrically mounted upon a shaft 20 which in turn is rigidly secured to the side wall of the suction nozzle 6 by means of its threaded engagement with the protruding end of bolt member 21. At the mner end of bearing 19 is a gear 22 which is fixedly carried by bearing 19 by means 0 the longitudinally extending bolts 23, 23. Gear 22, which is concentrically mounted relative to the shaft 20, forms, with the wheel 16 and the bearing 19, a unitary construction which is secured relative to the supporting shaft20 by means of a bolt member 24 which is threaded in the end thereof.

Between the two wheel pockets of the nozzle 6 extends a shaft 25 which is rotatably mounted in bearings 26, 26 formed in the 2 1,907,886 walls 9 and 10. At the extremities of the said casing, a rotatable bearing member ecshaft are gears 27, 27 which are adapted to centrically supporting said wheel on said mesh wit the segmental gears 22, 22 and axle, a gear secured to said bearing member, rotation of shaft 25, to cause a second gear, a rotatable shaft su porting said second gear in operative relation relative to said first gear, and manually rotatable means carried by said casing and operatively connected to said first mentioned shaft. e nozzle. In order that the shaft In a suction cleaner, a casing, an axle fix- 10 25 may be readily rotated by the operator a roedly mounted therein, a bearing rotatably and tatable knob 28 is provided which is carried eccentrically mounted on said axle, a supby a shaft 29 which extends upwardl h porting wheel rotatably mounted on the said the nozzle wall fr ring, a gear secured to said bearing, a secpockets and is rotatably mount gear, a rotatableshaft supporting said able bearing30 formed in said nozzle. second gear in opera-tive relatlon relative to lower end of shaft 29 a'worm gear 31 meshes said first gear and means to rotate said shaft carried by comprising a manually rotatable shaft carby said casing, a gear on said shaft and wlth cooperating gear on said first mentioned Signed at orth Canton, in the county of Stark, and State of Ohio, this 28th day of February, A. D. 1930.

DONALD G. SMELLIE.

d a worm gear 31 is outside ference of gear 27.

'I o adjust the nozzle height of the cleaner which embodies-helght-adjustmg means constructed in 'accordance with the present inh are rigidly connected.- As

gear 31 rotates it causes thegear 32 upon rotate thereby rotating the e respective ends of shaft 25, pen the rotation of the gears 27, 27 the ears 22, 22 which their ad uStment is made im ossible by the rigid means through which t ey are by which they are adjusted. I ela1m:' o 1. In a suction cleaner, a casing, spaced supportin wheels forsaid casing, an axle for eachw eel carried by said casing, an eccentric bearing member for each wheel rotatably mounted on an axle, and means to rotate said bearing members relative to said axles comprising agear carried by each member, coop crating gears rotatably mounted on said casratively connected with said first gears and means to synchronously rotate said second mentioned gears. I 2. In a suction cleaner, a casing, an axle carried by said asing, a supporting wheel for

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