US 3382525 A
Description (OCR text may contain errors)
JH l I" M. E. BELICKA DUPLEX VACUUM FLOOR CLEANING TOOL May v14, 1968 Filed July 28, 1966 ook INE INVENTOR. Mic/ma Elia/elm d/JW .H15 ATTORNEYS May l4, 1968 M. E. BELICKA DUPLEX VACUUM FLOOR CLEANING TOOL 2 Sheets-Shen Filed July 28, 1966 INVENTOR. M/ef/nfl E. BEL/elm HIS ATTORNEYS United States Patent O 3,382,525 DUPLEX VACUUM FLOGR CLEANING TOOL Michael E. Belicka, Greenwich, Conn., assigner to Electrolux Corporation, Old Greenwich, Conn., a corporation of Delaware Filed July 28, 1966, Ser. No. 568,615 3 Claims. (Cl. 15-365) My invention relates to a cleaning tool for a vacuum cleaner and in particular to a dual purpose tool which is useful for cleaning both floors (hardwood, tile, linoleum) and rugs or carpets.
Dual purpose iioor cleaning tools are known in which the nozzle body of the tool is provided with a pair of dissimilar cleaning surfaces, one on each side of the nozzle body. In the known dual purpose cleaning tool, the oor cleaning surface comprises an aperture surrounded by a fixed brush for loosening dust, dirt, etc. adhered to the floor and for sweeping dust and dirt out of depressions in tile and linoleum oors. The rug and carpet cleaning surface of the tool comprises an aperture surrounded by smooth surfaced rug pads in Order to minimize friction since a tool with a xed brush requires considerable effort to move it over a rug or carpet. To select the appropriate tool surface, the nozzle body rotates about the associated nozzle elbow and a valve mechanism is provided in the nozzle body so that only the nozzle aperture associated with the selected cleaning surface communicateswith the vacuum cleaner via the nozzle elbow and tool handle or wand.
According to my invention, a dual purpose floor and carpet cleaning tool is provided in which the nozzle body has but one cleaning surface which is convertible to a floor cleaning use and a carpet cleaning use by means of movable brushes. That is, brushes are placed in position adjacent the aperture of the nozzle body for cleaning floors and are withdrawn from this position for cleaning carpets and rugs.
A dual purpose iioor and rug cleaning tool having movable brushes in accordance with my invention is less expensive to manufacture than the known dual purpose tool since the valve and its operating mechanism is eliminated, while on the other hand the means for mounting the brushes on the tool are extremely simple to manufacture and assemble, are highly reliable in operation and easily operated by the person using the tool.
Therefore, an object of my invention is to provide a floor and rug cleaning tool having movable brushes whereby the tool is converted for the desired use.
Another object of my invention is to provide a dual purpose oor cleaning tool which is inexpensive.
A further object of my invention is to provide a dual purpose floor cleaning tool of simple construction in which ra rst brush is pivotally mounted for movement between its operative and inoperative position in a simple manner and a second brush is appropriately positioned according to the selected position of the iirst brush for floor or rug cleaning.
The foregoing objects and advantages, together with additional objects and advantages of this invention, will become apparent from the following detailed description of a presently preferred embodiment illustrated in the attached drawing in which:
FIG. 1 is a front elevation of a oor cleaning tool according to the invention.
FIGS. 2 and 3 are views similar to FIG. 1 showing the pivotal movement of one brush from a floor cleaning position, FIG. 1, to a rug cleaning position, FIG. 3.
FIG. 4 is a cross section taken on line 4--4 of FIG. 3.
FIG. 5 is a cross section taken on line S-S of FIG. l.
FIG. 6 is a cross section taken on line 6--6 of FIG. 1.
FIG. 7 is a cross section taken on line 7--7 of FIG. 1.
3,382,525 Patented May 14, 1968 ICC FIG. 8 is a bottom plan view of FIG. 1 showing a detail of the invention.
FIG. 9 is an end view of a tool as seen in FIG. 3.
As illustrated in FIGS. 1, 2, and 3, the dual purpose cleaning tool according to the invention comprise a nozzle body 10 having a suitable suction aperture and an elbow 11 which is pivotally attached to the body 10 in any suitable manner. A brush 12 and associated brush housing 20 are mounted at the front of the body 10 for rotation about a pin 13. The housing 20 is journalled on the pin 13 in any known simple manner so that the brush 12 can rotate 180 from the position shown in FIG. 1 to the position shown in FIG. 3. The brush housing 20 cannot rotate more than since it engages levers 17 and 26 in each of its operative positions (FIGS. 1 and 3) as will be clear from the following description given in connection with FIGS. 4, 5, and 7.
A second brush 14, which is seen in FIG. 2, extends from the body 10 adjacent the rear edge of body and in its oor cleaning position the brush 14 is fixed in this extended position. The brush 14 retracts into the body 10 for cleaning rugs (FIG. 3).
Movement of the brush 14 between its extended position, for floor cleaning, and its retracted position, for cleaning carpets, is determined by this position of the brush 12. This is accomplished, as seen in FIGS. 4 and 5, by a lever 15 which is pivotally attached to the body 10. The lever 15 has a reverse bend or cam 16 at one end for engaging the brush 14 and an arm 17 extending through a slot 18 into engagement with the pivotal brush housing 20.
From FIGS. 2, 4, and 5, it will be evident that when the brush 12 is turned upwardly (FIGS. 3, 4) the brush housing 20 pushes down on the arm 17 of the lever 15 which in turn disengagcs the cam 16 from the brush 14 (FIG. 4). In this position of lever 15, the brush 14 is free to move up or down within the brush well 19. When the brush 12 is `positioned in its floor cleaning position (FIGS. 1 and 5) the lever arm 17 is lifted by the brush housing 2i) and the cam 16 of the lever 15 forces the rush 14 downwardly so that it projects from the well 19.
Any suitable means can be used for guiding the brush 14 for movement up and down in the well. For example, as illustrated in FIG. 9, a vertically elongated slot 32 may be provided at each end of the nozzle body 10. The brush 14 in such a case being provided with a longitudinally extending rod which is received in the slot 32 and having end caps 31 which extend beyond the edges of the slot to limit axial movement of the brush. Also shown in FIG. 9 is a sliding latch 30 which is adapted to engage a pin on the brush housing 20 to lock the brush 12 in both of its operative positions.
n In the rug cleaning position of the brush 14, gravity will hold it against the rug or carpet to brush the nap, and if desired, a spring (not shown) may be used to cause the brush 14 to lightly engage the carpet. It is noted that the brush 14 will not materially increase the force re quired to move the tool over a rug or carpet as is the case with a xed brush forced against the rug by the total weight of the tool. According to my invention only the weight of the brush is active and the resultant drag on the tool is negligible.
Furthermore, by suitably shaping the cam end of the lever 15 the brush 14 can be fully retracted and held within the well 19. However, I prefer that the brush 14 be allowed to act under the influence of gravity to lightly brush the nap of the rug or carpet being cleaned.
To hold the brush 14 fixed in its extended door cleaning position, a rod 25 having a pair of levers 26 and 27 xed at each end, is provided as shown in FIGS. 6, 7, and 8. The rod 25, which is pivotally journalled in the body 10 in any suitable manner, extends the length of the `body 10. The lever 26 iixed at the end of the rod 25 adjacent the lever l5, extends through a slot 29iin `the front face of the body 10 for engagement bythe brush i housing `20.The levery 27 at` the opposite endof rod 25 (FIG. 6) `does not` project from the body 10. Each of the levers`i26and 27 extend over the brush 14. When the brush housing 20 is placed in its oor cleaning position it lifts the arm of `lever 26 extending through the slot 29. As a result the other end of lever 26 bears down on the brush 14. At the same time, the rod 25 pivots about its longitudinal axis turning the lever 27 against the other end of brush 14. As long as brush housing 20 is held against the iloorthe brush 14 is fixed in its extended floor cleaning position also.
i The lever `15 and the rod 25 with associated levers 26 and 27 may be` biased into one operative `position by a suitable spring. However,` the lever 15 and rod 25 can be allowed to pivot freely since movement of the levers 15, 26, and 27 by brush housing 20 is controlled in a positive manner.
When the arm of therod lever 26 is engagedfby the opposite side of the brush housing 20 the rod 25 and levers 26, 27 are disengaged `from `the brush 1.4y which is then free to move up and down within the well 19.`
The foregoing description of my invention is not intended to restrict the appended claims to the specific details disclosed above.`
What is claimed is:
1. A dual purpose cleaning tool comprising an elongated nozzlebodyhaving a cleaning surface and an elbow member `projectingtherefrom for connecting said brush means connected thereto yfor pivotal movement relativeto said body, said first brush member extending inthe elongated "directionof said nozzle body and having a first operativeposition in which the "bristles of said brush means extend outwardly of said nozzlebody beyond `said cleaning surface and a second operative position in which thebristles of said brush means extend in the opposite direction remote from said cleaning surface, said nozzle body having a well extending in the elongated direction thereof and opening into said cleaning surface, a second brush means within said well movable between a retracted position in which said second brush resides within `said Well and an extended position in which the bristles of said second brush means projecttfrom said Well outwardlybeyond said cleaning surface, lever means pivhaving an outer end projecting from said nozzle body into the plane of said iirst brush means'adjacent one longitudinal endk of said nozzle body, said lever means having an inner end within said Well for contact with said second brush means; said second brush being moved to said extended position by said lever means when said first brush is in its first operative position engaging the outer end of said lever means, and said lever means being withdrawn from said second brush when said first brush is in its second operative position engaging the outer end of said lever means whereby said second brush is free to move into its retracted position within said well.
2. A dual purpose cleaning tool according to claim 1 wherein said lever means includes a first pivotal lever having a camming surface at one end within said well and an arm extending outwardly of said `body` for deiining said outer end extending into the plane of said first brush, and a second lever system including a rod rotatably mounted within said body, said rod being coextensive with said body in a plane substantially parallel with said irst brush, said rod having a lever iixed thereto at each end, each of said rod levers extending into said well for engagement with said second brush, and one of said rod levers having an outer end projecting into the plane of said iirst brush for extending said second brush from said well and lixing saidy second brush in said extended position when saidirst brush is similarly positioned.
3. A dual purpose cleaning tool according to claim 1 wherein said lever means comprises a rod rotatably mounted within said body in a plane substantially parallelk with said first brush, said rod having a lever lixed thereto at each end, each of said rod levers extending into said well at one end for` engagement with said second brush, one of said levers having an outer end projecting into the plane of said first brush for extending said second brush from said rwell and fixing said second brush in said extended position when said iirst `brush is similarly positioned.
References Cited UNITED STATES PATENTS 2,488,625 ll/l949 Hallock 15-373 2,674,002 4/ 1954 White 15-365 2,827,654 3/1958 Beede l5373 ROBERT W. MICHELL, Primary Examiner.