US1957566A - Suction cleaner - Google Patents

Description

May 8, 1934. H. B. WHITE SUCTION CLEANER Filed Jan. 7, 1933 2 Sheets-Sheet 1 INVEN TOR. Harryfl. Wfiife A TTORNEY.

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H. B. WHITE SUCTION CLEANER Filed Jan. 7, 1953 2 Sheets-Sheet 2 I NVEN TOR. Harryfi, Wk 1' 21 W 1 T TORN E Y.

Patented May 1934 1,957,566 SUCTION CLEANER Harry B. White, Canton, Ohio, assignor to The Hoover Company, NorthCanton, Ohio, a corporation of Ohio 1 Application January 7, 1933, Serial No. 650,596 5 Claims. (Cl. 285-129) This invention relates to suction cleaners, and hold the nozzle 12 spaced slightly above the floor more particularly to clamping means for detachcovering, and a handle 17 is pivoted to the cleaner ablyattaching to the outlet of the suction cleaner body to facilitate directing the cleaner over the the dust bag, or similar means, for filtering and floor covering. Suitable means 18 are provided 5 retaining the dust which is drawn through the foradjusting the height of the rear wheels 16,. cleaner by the air currents. It is a common practhereby adjusting the nozzle 12 to and from the tice to provide such a dust bag with a rigid ring floor covering, and a suitable dust bag 19 is perto which the mouth of the bag is permanently se manently attached to a dust bag ring 20 of the cured, such ring being detachably secured to a same general size and contour as the flange 15 to 10 flange on the outlet of the cleaner, it being neceswhich it is to be detachably secured. Such parts sary that the parts be held in close engagement are of usual construction, and the present invento prevent the escape of dust. tion relates to the means for detachably securing One f h objects of h inv n n i t pr vid together the flange 15 and the dust bag ring 20.

a clamping structure for this purpose which will A t m operating member 1 shown in 15 be efficient and durable, and which can be readtail in Fig. 10, is rotatably mounted in a bore ily operated. Another object of the invention is 22 through the flange 15, and is held fro 1 to provide such a structure having a minimum of gitudinal movement therein by a flange 23 at its protruding p a d hav g I10 Pa t Which W l rear end which is preferably received in a counengage w a d Wea the ag- A Still further terbore in the flange 15, so as to be flush with 20 object is to provide such a structure which is carthe rear face thereof. To the front end of the ried entirely by the cleaner outlet, and which will t b l member 21 an Operating lever 24 is resiliently but positively d e Pa c mp cured by a set screw 25, or similar means, and together. Still further objects of the invention if desired the end of the member 21 may be upand features of novelty will be apparent from the set, as shown at 26, against the outer face of 25 following specification, describing a specific emthe lever. A spring washer 27 is preferably probodiment of the invention which is shown in the vided between the rear face of the lever 24 and accompanying drawings in which: the front face of the flange 15, such washer pref- Flg. 1 is a side elevation of a suction cleaner, erably being provided with a notch 28 by which win n mb m of the ion, parts it is anchored against rotation. A cam slot 29,

30 of the handle and dust bag being b ok ay; which is preferably helical, is formed in the tubu- 2 s an e a g d Vi w n r nta SeCtiO lar member 21 and is preferably continued at one taken on the line 2--2 of Fig. l; end to pass through the rear face of the flange Fig.3 is n enlarged tary view in cross- 23. A slot 30 is formed through the flange 15, section taken on the line 33 of Fig. 2; communicating with the bore 22, and is prefer- 35 Fig. 4 is a fragmentary view in cross-section ably lined by a wear member 31, of general U- taken on the line 4-'4 of Fig. 2; shape, as shown in detail in Fig. 15, which may Fig. 5 is an enlarged fragmentary view in lonalso, if desired, have an integral bent up lug gitudinal S c io Similar to but how n or portion 32 for engagement in the notch 28 to the parts in disengaged position; prevent rotation of the spring washer 2'7. 40 6 is an enlarged View in elevat on of the Arod 33 is reciprocatably mounted in the flange cleaner outlet taken on the line 6-6 of Fig'. 5; 15, passing through the operating member 21, Figs. 7 to 15 are detailed views of the various and having a radially projecting pin 34 which parts; and passes through the slot 29 in the tubular member Fig. 16 is a view in transverse section taken on 21 and into the slot in the wear member 31. 45 line 1616 of Fig. 1. It will be evident that the rod 33 is thus held The invention is herein shown as embodied in from rotation, but can slide longitudinally and a suction cleaner, as illustrated in Fig. 1. having that, by reason of the engagement of the pin 34 a main body 11 provided with a downwardly diin the slot 29, rotation of the tubular member rected nozzle 12 through which air is drawn from 21 will project and retract the rod 33 a, prede- 50 the carpet, or other floor coverings, by a fan 10- termined distance in each direction relative to cated in the main body 11 and operated by a mothe face of the flange 15. The front end of the tor 13, the air and dust being discharged rear rod 33 is preferably provided with an enlarged wardly through an outlet 14 which is provided head 35, for engagement with the inner end of with a fiat circumferential flange 15. The cleanset screw 25, whereby rearward movement of the 55 er as a whole is mounted upon wheels 16 which rod 33 will be limited and accidental removal of the rod 33 from the rearward end of tubular member 21, when the ring 20 is not in place, will be prevented. Movement of the rod 33 in the opposite direction will obviously be limited by the engagement of the pin 34 with the front end of the slot 29.

The rearward end of the rod 33 is preferably provided with a resilient head in the form of a cup-shaped member 36 in which there are received a coil spring 3'7 and a washer 38 which is riveted or otherwise secured to the end of the rod 33. A shoulder 39 is provided on the rod 33 to limit the movement of the cup-shaped member 36 under the action of the coil spring 37.

It will be understood that there are two simi lar clamping means, preferably located at diametrically opposite points on the flange 15, only one having been described in detail. To secure air tight fitting of the ring 20 and the flange 15, it is also preferable that one of these parts he provided with a suitable annular channel 40 in which a gasket 41 of sponge rubber, or similar material, is located. The ring 20 is provided with laterally projecting ears 42 having downwardly opening slots 43 therein, so that the ring may be moved downwardly upon the rods 33, and it is preferable that the face of the ring 20 be slightly cupped, as shown at 44, to receive the resilient head 36, and thereby prevent relative accidental shifting of the ring relative to the flange 15. The bag 19 may be secured to the dust bag ring 20 in any suitable manner, but is hereinshown as having a clamping band 45 sewed in the hem of the bag and contracted by a bolt 46 against an internal flange 47 on the ring 20.

It will be evident that the two rods 33 with their resilient heads in the position shown in Fig. 5 will project rearwardly from the flat flange 15 and that the bag ring 20 may be readily engaged with the flange l5 and slid downwardly upon the rod 33 and, upon rotation of the levers 24, the heads 36 will be retracted toward the flange 15 to clamp the ring 20 thereto. Because of the springs 37, the ring 20 will be resiliently but forcibly held in place, and any shifting of the ring 20 will be prevented by the engagement of the heads 36 in the cups 44. It will also be apparent that, by reason of the slight projection of the heads 36 from the rear face of the ring 20, any danger of wear of the bag 19 by rubbing against the clamping members will be prevented, and that the clamping devices as a whole will present no objectionably protruding parts and wil have a neat appearance.

While one embodiment of the invention has been illustrated and described, it will be understood that many changes in the details of structure may be made within the scope of the invention defined by the following claims.

I claim:

1. A clamping device for detachably clamping together a pair of members, comprising a slider mounted for reciprocation in one of said members and having an abutment for engagement with the outer face of the other of said members, a manually operable element rotatably associated with said slider, said slider and said element being carried by said first member and having a helical slot and pin connection with each other whereby rotation of said element will reciprocate said slider, and means on said first member and said slider cooperating to prevent relative rotation.

2. A clamping device for clamping together a pair of members, comprising a rod slidably mounted in one of said members and held from rotation relative thereto, a tubular element rotatably carried by said member and surrounding said rod, said tubular element having a helical slot therein and having a portion accessible for rotation manually, said rod having a projection extending through said helical slot and having an abutment for engagement with the other of said members.

3. A clamping device for clamping together a pair of members, comprising a slider mounted for reciprocation in one of said members, a manually operable element carried by said member and rotatably associated with said slider, said slider having a projection thereon and said element having a cam surface thereon engaging said projection to reciprocate said slider, and an abutment member resiliently mounted on said slider for engagement with the outer face of the other of said members.

4. A clamping device for clamping together a pair of members, comprising a slider mounted for reciprocation in one of said members, a manually operable element carried by said member and rotatably associated with said slider, said slider having a projection thereon and said element having a cam surface thereon engaging said projection to reciprocate said slider, an abutment head resiliently mounted on said slider for engagement with the outer face of the other of said members, and means on said slider for limiting the movement of said head relative to said slider.

5. A clamping device comprising a base, a rod slidably mountd in said base, a tubular element surrounding said rod and rotatably mounted in said base, said element being held from endwise movement relative to said base and having a cam slot therein, said base having a slot therein, a projection on said rod passing through said cam slot and engaging in the slot in said base to prevent rotation of said rod relative to said base, an enlarged head on the free end of said rod, and means for rotating said tubular element to recip rocate said rod a definite distance in either direction.

HARRY B. WHITE.

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