US2798243A

US2798243A - Guard shoe for a vacuum cleaner

Info

Publication number: US2798243A
Application number: US408546A
Authority: US
Inventors: Hans B Wex
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-02-05
Filing date: 1954-02-05
Publication date: 1957-07-09
Anticipated expiration: 1974-07-09

Description

July 9, 1957 H.- B. WEX 2,798,243

GUARD SHOE FOR A VACUUM CLEANER Filed Feb. 5. 1954 2 Sheets-Sheet 1 1Q 3O 3 \IVLQ la is m H i8 *5 1- E l l =15) 12 28 H 28 i2 JNVENTOR.

HANS B.WEX

ATTO Fl M EYS July 9, 1957 H. B. WEX 2,798,243

v GUARD SHOE FOR A VACUUM CLEANER Filed Feb. 5, 1954 2 Sheets-Sheet 2 Fig.3

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United States Patent 2,798,243 I GUARD SHOE FOR A VACUUM CLEANER Hans B. Wex, Alexandria, V a. Application February 5, 1954, Serial No. 408,546 2 Claims. (Cl. 15-246) This invention relates to a guard shoe for a vacuum cleaner and has for its primary object to facilitate the cleaning of shaggy fabrics with a vacuum cleaner of the conventional type.

Another object is to enable a conventional vacuum cleaner to be employed for cleaning shag rugs of the type now in popular use wherein the nap of a rug is long and normally tends to clog the suction slot of the conventional cleaner.

A more specific object is to prevent the nap of a shag rug from entering the suction slot of a conventional vacuum cleaner head to an extent that will interfere with the cleaning operation.

Another object is to facilitate the rapid attachment and detachment of the guard shoe to the suction head of a conventional vacuum cleaner.

The above and other objects may be attained by employing this invention which embodies among its features spaced parallel bars extending across and beyond opposite longitudinal side edges of the head of a conventional vacuum cleaner, extensions carried by opposite ends of the bars and extending upwardly and outwardly therefrom to define with said bars a guard shoe which will glide over a shaggy surface and prevent the nap thereof from entering the suction slot of the suction head of the cleaner, and means carried by the bars and engaging the suction head for retaining the guard shoe thereon.

Other features include spaced parallel cross bars car ried by the spaced parallel bars intermediate the ends of the guard shoe to define stops for engaging opposite longitudinal side edges of the suction head and arresting movement of the suction head relative to the guard shoe.

Still other features include extensible straps carried by the guard shoe and extending between the cross bars and across the suction head adjacent opposite ends thereof for holding the shoe on the head and the head between the cross bars.

In the drawings:

Figure 1 is a top plan view of a suction head of a conventional vacuum cleaner showing this attachment in place thereon;

Figure 2 is a front view in elevation of Figure 1;

Figure 3 is a fragmentary sectional view taken substantially on the line 3-3 of Figure 1;

Figure 4 is a sectional view taken substantially on the line 44 of Figure 3; and

Figure 5 is a perspective view of the attachment.

Referring to the drawings in detail, a suction head H is provided with an elongated longitudinally extending suction slot S which opens through the bottom of the head H and communicates through a duct D with a conventional suction fan (not shown) of the type commonly employed in vacuum cleaners. The structure so far described is conventional and forms no part of this invention except in combination therewith.

The vacuum cleaner attachment constituting this invention comprises a guard shoe designated generally which is composed of a plurality of elongated spaced parallel bars 12 which are provided adjacent opposite ends with upwardly and outwardly extending extensions 14 which with the bars 12 define spaced parallel 1on gitudinally extending guard runners which are adapted to extend across the suction slot S of the vacuum cleaner head H, as will be readily understood upon reference to the drawings. Carried by and extending transversely across the upper outer ends of the extensions 14 are end bars 16 and carried by opposite ends of the end bars 16 and extending longitudinally therebetween above opposite side edges of the shoe are tie bars 18 which, as illustrated in Figure 5, define an elongated substantially rectangular trough-like structure defining the guard shoe 10. Reinforcing bars 20 are carried by the spaced parallel bars 12 adjacent the junctions thereof with the extensions 14 and extend transversely across the shoe' 10 adjacent opposite ends thereof.

Carried by and extending transversely across the spaced parallel bars 12 are spaced parallel cross bars 22 which define stops for engaging opposite side edges of the head H to arrest longitudinal movement of the head relative to the shoe. Carried by the cross bars adjacent opposite ends thereof and extending upwardly therefrom are posts 24, the upper ends of which are welded or otherwise fixed to the tie bars 18, and carried by the posts and extending transversely across the shoe above the cross bars 22 are bridge bars 26 which are connected intermediate their ends with the cross bars 22 by upwardly extending pillars 28.

Elastic straps 30 are provided with separable fasteners 32 and, as illustrated in the drawings, are extended beneath the bars 26 and across the top of the head H on opposite sides of the duct D and opposite ends of the straps 30 are connected together, as illustrated in Figures 1 and 3, to retain the shoe 10 on the head with the head disposed between the cross bars 22.

With the shoe mounted 011 the head, as above described, it will be obvious that the head may be employed to clean shag rugs and the like and the guard shoe will prevent the nap of the rug being cleaned from interfering with the manipulation of the head H. Thus, byusing the attachment, the shag rugs now popularly employed may be readily cleaned with an ordinary vacuum cleaner.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

What is claimed is:

l. A guard attachment for a vacuum cleaner head having a suction slot opening through the bottom thereof, said attachment comprising a plurality of bars arranged in parallel spaced relation, a reinforcing bar extending transversely across said bar adjacent each end thereof and carried by said bars, a tie bar positioned above and extending along each of the outermost ones of said parallel bars and carried by the adjacent outermost one of said bars, a pair of crossbars arranged in parallel spaced relation positioned transversely of and carried by said plurality of bars intermediate the ends thereof, a post connecting each end of said crossbars to the adjacent tie bar, a bridge bar positioned above and extending along each of the crossbars and having the opposite ends attached to the adjacent post intermediate the ends of the post, said crossbars being adapted to receive therebetween said cleaner head with the portion of said parallel spaced bars between said crossbars being adapted to support the bottom of said head and extend across the suction slot in the bottom of said head, and spaced straps each extending between and over said bridge bars and having cooperating detachable fastening means on the free ends thereof, said straps being adapted to overlie the suction head when positioned between said crossbars and supported on the portions of said spaced parallel bars between said crossbars to hold the head in position. v I

2. A guard attachment for a vacuum cleaner head having a suction slot opening through the bottom thereof, said attachment comprising a plurality of bars arranged in parallel spaced relation, extensions carried by opposite ends of said bar and extending upwardly and outwardly therefrom, a reinforcing b'ar extending transversely across the parallel bars at the juncture of theextensions at each of the opposite ends of the parallel bars, an end bar extending transversely of the upper ends of theextensions at 15 each of the opposite ends of the parallel bars, a tie bar positioned above and extending along each of the outermost ones of said parallel bars and carried by said end bars, a pair of crossbars arranged in parallel spaced relation positioned transversely of and carried'by saidplurality of bars intermediate the ends thereof, a post connecting each end of said crossbars to the adjacenttie bar, a bridge bar positioned above and extending along each of said crossbars and having the opposite ends attached to the adjacent post intermediate the ends of the post, said crossbars being adapted to receive therebetween said cleaner head with the portion of said parallel spaced bars between said crossbars being adapted to support the bottom of said head and extend across the suction slot in the bottom of said head, and spaced straps each extending between and over said bridge bars and having cooperating detachable fastening means on the free ends thereof, said straps being adapted to overlie the suction head when positioned between said crossbars and supported on the portions of said spaced parallel bars between said crossbars to hold the head in position.

References Cited in the file of this patent UNITED STATES PATENTS Great Britain Nov. 12, 1931