US1952900A - Suction cleaner - Google Patents

Description

March 27, 1934.

H. B. WHITE SUCTION CLEANER Filed Nov. so, 1932 I Harry B. Wizzie ATTO R N EIY Patented Mar. 27,1934

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PATENT OFFICE 1,952,900 SUCTION CLEANER Harry B. White, Canton, Ohio, assignor to The Hoover Company, North Canton, hio, a corporation of Ohio Application November 30, 1932, Serial No. 644,937

r 6 Claims.

- 10 from the body of the cleaner.

' One of the objects of the invention is the provision of a bag which is durable, which can be economically manufactured and which can be readily emptied. Further objects are to provide a bag with means for holding the top opening therein distended, .and to provide distending means such that they will be neat in appearance and present no unsightly or undesirably projecting parts. A still further object is to provide such distending means which will facilitate holding the open mouth tightly against a fiat surface to prevent escape of dust while the bag is being emptied. Further objects of invention, as well as the novel features of construction and operation, will be understood upon a reading of the following specification describing an embodiment of the invention which is shown in the accompanying drawing, in which:

Fig. 1 is a view in side elevation of a suction 3 cleaner having a bag thereon equipped with mouth distending means in accordance with, and constituting an embodiment of, the invention;

Fig. 2 is a fragmentary view, on an enlarged scale, of the top portion of the bag and other parts shown in Fig. 1, the bag being in deflated.

Fig. 4 is a fragmentary view, similar to Fig. 3,

but showing the bag opening fully distended;

Fig. 5 is an enlarged fragmentary view in longitudinal section, taken-on'the'line 5- 5 of Fig. 3; Fig. 6 is an enlarged view in cross section, taken on the line 6--6 in Fig. 4; and

Fig. '7 is a sectional view, taken on line 7-7 of Fig. 3.

The suction cleaner, as shown in Fig. 1, comprises a main body portion indicated generally at 11, having an upwardly and rearwardly extending handle 12 pivotally connected thereto at 13, the body comprising a fan, not shown, and an electric motor 14 mounted on the body to operate the fan and thereby draw air, and dust through a downwardly-opening nozzle and discharge it through an outlet 15 into a bag 16, which has a ring 1'7 at its lower open end detachably secured to the outlet 15 byv thumb-nuts 18, or similar means. The cleaner as a whole is mounted on wheels 19, and the electric motor 14 is supplied with current by a conducting cable 20, which is preferably connected to the upper end of the handle, a switch 21 and suitable wiring being provided for controlling the motor. A hook 22, or similar means, is carried by the upper end of the handle 12 for yieldably and detachably supporting the upper end of the bag 16. All of these parts are of well known construction, as shown, except for the formation of the upper end of the bag and the means for holding the opening therein dis- 7 tended. It will be understood that in use the cleaner as a whole is moved about over the surface covering, the handle being swung as desired from a horizontal position toward and from vertical position. When not in use, the cleaner is usually stored with the handle in substantially vertical position, the bag being then deflated, as shown in Fig. 2.

From time to time the accumulation of dust and dirt within the bag renders it advisable to remove the bag and empty it, and frequently hairs, threads, lint and similar material is found to have been matted into a comparatively large mass too large to remove through the lower mouth of the bag except by grasping it and pulling it out, which 35 is a disagreeable'operation and usually results in scattering a large amount of dust. For this reason bags have been provided, heretofore, with a larger opening or mouth, usually at the top of the bag to facilitate emptying, such opening being folded and held closed by being slid laterally into a channel-shaped spring-clamp 23 which, in turn, is connected to the handle and supports the upper end of the bag.

To empty such a bag, it is usually removed from the cleaner and inverted, the large mouth of the upper end being placed upon a sheet of paper or similar material, on the floor. The inlet mouth is closed, usually by partially folding the lower end of the bag, and the-bag is shaken to it is essential that the large open mouth of the bag be held tightly against the paper, to prevent the escape of dust.

, In accordance with the present invention, the bag 16 is formed with a large mouth 24, at its upper end, which is substantially square, two oppo- 1 site sides being straight, and the intermediate sides being folded inwardly at their center points so that the folded points meet when the mouth is collapsed by bringing the opposite straight sides toward each other against the infolded portions of the intermediate sides. The clip 23, of channel shape, is preferably formed of resilient sheet metal, and is provided to slide laterally upon the folded mouth and hold it closed, preferably having a bail pivoted thereto to facilitate its at.- tachment to the hook 22.

To hold the mouth 24 distended, and tight against a flat surface'during emptying, a square loop 26, preferably of wire, is pivoted to one of the straight sides of, and surrounds," the bag mouth, its opposite side being slidably received between the outside of the bag and a band 27 of flexible material which is secured at one end to such opposite side of the bag mouth and at itsother end to the outside of the bag, so' that 1 it lies fiat against the outside of the bag at all times. The intermediate sides of the loop 26 are formed with outwardly bent projections 28 which lie in the plane of. the loop as a whole, so that the operator can stand upon them and thereby hold the entire loop tight against the paper upon which the bag is being emptied. As the bag is fully extended, lengthwise, during the emptying operation, and the band 2'7 is held taut, it will be apparent thatthe free side of the wire loop 26, opposite to the side which is pivoted, will be held close to the corresponding side of the bag mouth and hold the mouth distended.

Although the wire loop 26 may be pivoted to g the mouth merely by locating it in a hem in the .bag material, it is preferably that, as shown, a

channel member 29 of metal, or other rigid material, bebent over upon and enclose the hem' and the wire, as shown in Fig. 6, annular depressions 30 being formed in the wire adjacent its ends into which teeth 31 in the member 29 are pressed, whereby the ends of the loop are held from separating and the pivoted side thereof is reinforced.

The edge of the bag mouth to which the band 27 is attached, and which is opposite to that to which the loop 26 is pivoted, may be reinforced, if desired, by a bar 32 sewed into the hem as shown in Fig. '7, or both such edge of the mouth and the folded sides of the mouth may be thickened by a. cloth tape sewed in'the hem in the same manner. When the bag mouth has been closed, by folding in the two opposite sides thereof, the side to which the wire loop 26 is pivoted and the side opposite thereto come together, and the folded mouth is then telescoped into the channel member 23, it being apparent that the thickness of the hemmed mouth will assist in preventing accidental separation of the bag mouth and the clip 23 by reason of longitudinal pull on the bag.

Since the wire loop is at all times held close to the bag, there are no parts protruding to any great extent from the bag and, when the bag is deflated and held taut by moving the handle to the substantially vertical'position which is the usual storage position, the bag will be in the position shown in Fig. 2 and the wire loop 26 will be held tightly in place. 4

It will be understood that separate narrow bands at the corner of the bag might be used instead of the single wide band illustrated, and that many other changes could be made in the details of structure within the scope of the invention, which is defined in the following claims.

What is claimed is:

l. A dust bag having a discharge opening therein, and means for holding said opening distended comprising a loop of rigid material extending about said opening and means on said bag guiding said loop to .and from a position substantially in the plane of said opening, and limiting movement of said loop in one direction to such position substantially in the plane of said opening.

2. A dust bag having a. discharge opening therein, said opening having opposite straight edges and intermediate infolded edges, a rigid loop pivotally associated with one of said straight edges of said opening, and guiding means on the outside of said bag adjacent the opposite straight edge of said opening cooperating with said loop to guide it to a position substantially in the plane of said opening and holding said loop closely associated with the edge of said opening when in such position.

3; A dust bag having a discharge opening therein, and means for holding said opening distended comprising a loop of rigid material surrounding said opening and movable to a position substantially in the plane of said opening, and means on said bag guiding said loop to such position and holding it closely associated with the edge of said opening when in such position, said loop having rigid portions extending outwardly therefrom in the plane of the loop.

4. A dust bag having a discharge opening therein, and means for holding said opening distended comprising a loop of rigid material havedge of said opening at one point, and a strip secured at one end to the edge of said opening at an opposite point and having its other end secured to said bag, the free end of said loop being positioned between said bag and said strip.

5. A dust bag having a substantally square discharge opening therein, said opening having opposite straight edges and intermediate infolded edges, a loop of rigid material corresponding in size and shape to said discharge opening and pivotally secured to one of the straight edges of said opening, and a strip secured at one end to the opposite straight edge of said opening and at its other end to the outside of said bag, the straight side of said loop opposite to its pivoted side being slidably engaged between said bag and said strip.

6. A dust bag having an opening therein through which it may be emptied, and means for holding said opening distended, comprising a rigid member having'a portion hingedly cooperating with one portion of the edge of said opening and a portion cooperating with a portion of the edge of said openingspaced from the first mentioned portion thereof, and means on said bag guiding said rigid member to, and limiting such movement in a position substantially in the plane of said opening. HARRY B. WHITE.

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