US3150402A

US3150402A - Suction cleaner nozzle

Info

Publication number: US3150402A
Application number: US272444A
Authority: US
Inventors: Elgeryd Alf Ingvar
Original assignee: Electrolux AB
Current assignee: Electrolux AB
Priority date: 1962-04-11
Filing date: 1963-04-11
Publication date: 1964-09-29
Anticipated expiration: 1981-09-29
Also published as: GB1026962A

Description

p 29, 1964 A. 1. ELGERYD 3,150,402

SUCTION CLEANER NOZZLE Filed April 11, 1963 Fig: 4.

IN ENTOR. WW

QWMfM 5 I 23 ATTORNEY United States Patent 3,150,402 SUCTIGN CLEANER NOZZLE Alf Ingvar Elgeryd, Hagersten, Sweden, assignor to Aktiebolaget Electrolnx, Stockholm, Sweden, a

corporation of Sweden Filed Apr. 11, 1963, Ser. No. 272,444 Claims priority, application Sweden Apr. 11, 1962 Claims. (Cl. -325) This invention relates to a suction cleaner nozzle of the type used for cleaning rugs, floors or other substantially large surfaces.

It is an object of my invention to provide an improved suction cleaner nozzle of the described character formed of a plurality of easily and relatively inexpensively manufactured parts which are simply and easily assembled together, thereby to permit the relatively low cost production of such nozzle.

Another object is to provide a suction cleaner nozzle with an elongated head having a suction opening extending therealong for use in removing dust from rugs, floors and other large, substantially fiat surfaces, and wherein the opposite ends of the head are formed with end wall openings contiguous with the adjacent ends of the elongated suction open ng, and permitting cleaning close to walls, furniture and the like.

Further objects and advantages of my invention will become apparent as the following description proceeds, and the features of novelty which characterize it will be pointed out with particularity in the claims annexed to and forming part of this specification.

For a better understanding of my invention, reference may be had to the following description taken in connection with the accompanying drawing, in which:

FIG. 1 is a perspective view of a suction cleaner nozzle embodying my invention;

FIG. 2 is an exploded perspective view on a smaller scale than that of FIG. 1, and illustrating the several elements which are assembled together to produce the suction cleaner nozzle of FIG. 1;

FIG. 3 is an enlarged sectional view taken along the line 33 on FIG. 1; and

FIG. 4 is an enlarged, fragmentary sectional view taken along the line 44 on FIG. 1.

Referring to the drawing in detail, and initially to FIG. 1, it will be seen that I have there shown a suction cleaner nozzle embodying my invention and which is generally identified by the reference numeral 10. The nozzle 10 comprises an elongated hollow head 11 which, at a region intermediate its ends, is turnably connected to an upwardly inclined tubular member 12, as hereinafter described in detail. The tubular member 12 serves as an outlet socket adapted to be connected to a suction line or conduit of a suction cleaner through which air is drawn during operation of the suction cleaner. The hollow interior of the head 11 provides a passage through which air is drawn toward the outlet socket 12 from the region of an elongated suction opening 15 (FIG. 3) extending along the length of the head 11 at the side of the latter which is lowermost in FIGS. 1 and 3. The elongated suction opening 15 is intended for removing dust and other finely divided dirt and the like from rugs, floors and other large substantially flat surfaces. The head 11 further has an auxiliary suction opening 16 at the side thereof which is uppermost in the position shown on FIGS. 1 and 3, that is, at the side opposed to the elongated suction opening 15, and the auxiliary suction opening 16 is communicated with the outlet socket 12 so that air is drawn toward the latter from opening 16 for picking up fine threads and the like when the head 11 is turned or inverted with respect "ice to the outlet socket 12 so as to dispose the suction opening 16 at the bottom of the head 11.

In accordance with my invention, the head 11 of the suction cleaner nozzle is formed of two

main parts

13 and 14 which respectively define the

suction openings

15 and 16.

The part 13 is a relatively thin-walled, channel-like member of substantially U-shaped cross-section which is cut to suitable length from an elongated, sheet metal element bent so as to have the required cross-sectional configuration. The longitudinal edge portions of the channellike member 13 are directed inwardly towards each other, as at 17, and then upwardly, as at 18, to define the opposite longitudinal margins of the elongated suction opening 15. It will be noted that the inwardly directed portions 17 form slide surfaces, while the upwardly directed edge portions 18 cooperate with the inwardly directed portions 17 to define interior channels 19 extending along the opposite sides of the suction opening 15.

Extending lengthwise in the channels 19 are elongated braces 20 which close the channels 19, at the top of the latter, and thereby provide the interior of the channel-like member 13 with a shape which is most favorable for the flow of air from the suction opening 15. The braces 23 also provide the channel-like member 13 with increased rigidity and strength at the portions thereof engageable with a floor, rug or other surface to be cleaned, and further are employed, as hereinafter described in detail, for the purpose of securing end walls 21 at the opposite ends of member 13.

The end walls 21 are hollowed out to define inwardly opening cavities, as best seen on FIGS. 2 and 4, and are preferably formed of plastic so as to form bumpers for the sheet metal channel-like member 13. A Weight 22 is cast or loosely inserted in the hollow cavity of one of the end walls 21 so that, when the head 11 is lifted from the floor or other surface being cleaned, the head will turn on the tubular member or outlet socket 12 to a position where its weighted end is lowermost, from which position the head can be conveniently turned to dispose either the suction opening 15 or the auxiliary suction opening 16 against the surface to be cleaned.

In accordance with this invention, the end walls 21 each have a groove or slot 24 (FIGS. 1, 2 and 3) located so as to form an extension of the suction opening 15 and communicating with a relatively wider end opening 25 in the end wall. When the head 11 of nozzle 16 is positioned with its suction opening 15 against a rug, floor or other relatively large fiat surface, the groove or slot 24 and the end opening 25 of each end Wall permit effective cleaning of the rug or floor close to walls, furniture or other vertical surfaces.

When the end walls 21 are formed of plastic, wearing or scratching of the surfaces thereof at opposite sides of each groove or slot 24 by reason of sliding contact thereof with the surface to be cleaned is avoided by providing each end wall 21 with slide shoes 23 formed of metal strips bent so as to have a substantially C-shape (FIGS. 3 and 4). The inner ends of the slide shoes 23 engage in the groove 24 of the related end wall, and the outer ends 23:: thereof engage in grooves 23b formed in the front and back surfaces of the end wall. As is best seen on FIG. 3, the slide shoes 23 extend below the portions 17 forming the slide surfaces of the channel-like member 13 so that, when the nozzle 14) is employed for cleaning of a hard surface, the nozzle will slide substantially only on the slide shoes 23 thereby to reduce the area of contact with the hard surface being cleaned for facilitating maneuvering of the nozzle.

The end walls 21 are secured at the opposite ends of the channel-like member 13 by means of screws 26 which pass through holes 27 formed in bosses of the end walls as an air inlet, the bottom walls having opposing edge portions which extend upward to provide a pair of parallel channels which extend leng rse of the body at opposite sides of the gap, each of the channels having elongated member therein which extends between the onen ends of the body, end walls for closing the open ends of the body, and means including the elongated members for connecting the end walls to the body.

8. A suction cleaner nozzle as set forth in claim 7 in which each of the elongated members srugly fits in a different one or" the channels and reinforces and strengthens the hollow body.

9. A suction cleaner nozzle as set forth in claim 8 in which the elongated members are hollow whereby the weight of the nozzle is kept at a minimum.

10. A suction cleaner nozzle as set forth in claim 7 in which the channels define open grooves and the elongated members cover the open grooves and define in part the air passage leading from the inlet.

References Cited in the file of this patent UNITED STATES PATENTS Moorhead June 6, 1905 Moorhead .iuly 13, 1999 Allen Dec. 25, 1934 Replogle et a1 Mar. 19, 1935 Replogle Feb. 20, 1949 Gambardella Nov. 26, 1940 Seyfried Feb. 9, 194-3 Hansson May 25, 1943 Kircher Oct. 19, 1943 Brown Nov. 2, 194-3 Lofgren Mar. 20, 1945 Leslie Sept. 5, 1950 Allen Dec. 23, 1952 Allen Nov. 8, 1955 Pettit et a1 Feb. 4, 1958 Anderson May 8, 1962

Claims

1. A SUCTION CLEANER NOZZLE COMPRISING A HOLLOW HEAD AND AN OUTLET SOCKET EXTENDING FROM SAID HEAD FOR COUPLING TO A SUCTION CONDUIT OF A VACUUM CLEANER, SAID HEAD INCLUDING AN ELONGATED CHANNEL-LIKE MEMBER OF SUBSTANTIALLY U-SHAPED CROSS-SECTION HAVING LONGITUDINAL EDGE PORTIONS DEFINING AN ELONGATED SUCTION OPENING THEREBETWEEN, END WALLS AT THE OPPOSITE ENDS OF SAID CHANNEL-LIKE MEMBER, SAID LONGITUDINAL EDGE PORTIONS OF THE CHANNELLIKE MEMBER BEING DIRECTED INWARD TOWARD EACH OTHER AND FORMING SLIDE SURFACES AT THE OPPOSITE SIDES OF SAID ELONGATED SUCTION OPENING, SAID LONGITUDINAL EDGE PORTIONS OF THE CHANNEL-LIKE MEMBER BEING FURTHER DIRECTED UPWARD AT THE OPPOSITE SIDES OF SAID SUCTION OPENING TO FORM PARALLEL CHANNELS WITHIN SAID MEMBER AT SAID OPPOSITE SIDES OF THE SUCTION OPENING, BRACES EXTENDING LONGITUDINALLY IN SAID CHANNELS, AND MEANS ENGAGING THE ADJACENT ENDS OF SAID BRACES FOR SECURING SAID END WALLS TO SAID CHANNEL-LIKE MEMBER.