MXPA98009429A - c. SUCTION NOZZLE OPERATED BY A DENT WHEEL - Google Patents

Abstract

The present invention relates to a suction nozzle, characterized in that it includes: (a) a housing having front and rear ends and formed with a cavity adjacent to the front end, (b) a stirrer mounted in a rotatable and removable manner within the cavity; (c) a cover connected in an articulated manner to the housing and movable between an open position that provides access to the cavity, which allows the removal of the agitator and a closed position to cover the cavity, avoiding removal of the agitator, (d) a front pulley rigidly connected to one end of the agitator, whereby the rotation of the front pulley drives the agitator, (e) a rear pulley rigidly connected to an arrow, the arrow is mounted rotating in the intermediate housing to the front and rear ends; (f) a band extended between the front and rear pulleys, whereby the rotation of the rear pulley drives the front pulley, the belt has partial access when the cover is in the open position, (g) a front gear rigidly connected to the arrow, whereby the rotation of the front gear drives the arrow and the rear pulley; a gear wheel rotatably connected to the housing adjacent the rear end thereof, and (i) a rear gear engaged rigidly with the gear wheel, the rear gear engages the front gear, whereby the rotation of the wheel gear drives the gear in front

Description

SUCTION NOZZLE OPERATED BY A DENTATED WHEEL FIELD OF THE INVENTION This invention relates to floor care applications and, more specifically, relates to a suction nozzle.

Previous Art Background Suction nozzles which include a stirrer driven by a sprocket are known. Suction nozzles are also known in which the agitator is mounted "conveniently downwards through a hinged lid with the drive structure of the sprocket." The use of the sprockets entrained in a suction nozzle is also known as the it is in a mounting arrangement for the sprocket shaft, however, previously, it was not known to combine these features viably in an operating nozzle, a practice having a commercially advantageous structure and shape.

Therefore, it is an object of the invention to provide an improved suction nozzle.

It is a further objective of the invention to use a REF. 028938 agitator arrangement driven by a simplified sprocket in a sprocket nozzle.

It is still a further object of the invention to include an improved sprocket shaft assembly for a sprocket nozzle.

It is still a further object of the invention to provide a downwardly mounted agitator assembly through a top opening in the nozzle housing.

It is also an object of the invention to provide the nozzle housing with a hinged lid engageable to facilitate such assembly.

It is a further object of the invention to use sprockets dragged on the suction nozzle that have an attribute of self-cleaning.

It is still a further object of the present invention to provide the aforementioned suction nozzle with a foamed material as an external cover for the agitator.

BRIEF DESCRIPTION OF THE INVENTION A suction nozzle includes a hinged front opening cover which exposes open base stirrer mounting slots upwards. The agitator is then easily mounted through the provided opening, down into the slots of the agitator. The agitator is driven by rear-mounted suction nozzle sprockets whose shaft includes a relatively large fixed gear. This gear meshes with a smaller second-axis gearwheel arranged forward to drive it at a higher rotational speed.Also fixed with the second axle is a relatively large toothed pulley which drives a toothed belt that is mounted accionadamente on a Smaller toothed pulley fixed with the agitator This increases the speed of the agitator a second time and, in addition, with the described drive, the agitator is set to rotate opposite to the rear drive sprockets.A sponge agitator is used, in general, with this nozzle, because one of the main applications for this is the cleaning of the bare floors.An assembly of a gearwheel shaft assembly is included which allows the nozzle to rotate in relation to its hose coupling. on the spindle axis of the nozzle.

BRIEF DESCRIPTION OF THE DRAWINGS Reference could now be made to the accompanying Drawings for a better understanding of the invention, such as for its organization and function, with the illustration being a preferred form of the invention, but which is exemplary only, and in which: Figure 1 is a partially schematic view of the left front perspective of the invention that is observed downwards and with the lid of the nozzle open; Figure 2 is a similar view of the invention but not schematized and with the lid closed, - Figure 3 is a view of the upper plane of the lower structure of the nozzle; Figure 4 is a view of the lower plane of the upper structure of the nozzle; Figures 5-7 are various views of the sprocket and drive arrangement of the timing belt of the suction nozzle; Figure 8 is a schematic view of the left of one of the sprockets; Figure 9 is a left perspective view of the sponge agitator to be used with the suction nozzle; Figure 10 is a vertical cross-sectional view taken through the center of the gearwheel nozzle taken on an axial line through the hose coupling housing of the nozzle; Figure 11 is a cross-sectional view taken through the sprocket nozzle that regulates its sprockets; Figure 12 is a view of the right perspective of one of the axes of the nozzle that support pulleys; Y Figure 13 is a right lateral elevational view of the suction tube.

DETAILED DESCRIPTION OF THE DRAWINGS Shown in Figures 1-2 is a suction nozzle 10 which is supported on its back by actuation of the sprockets 12, 12. These sprockets are mounted between an upper structure of the nozzle 14 and a lower structure of the nozzle 16. A cap 18 is hingedly mounted to the upper structure of the nozzle 14 adjacent its front edge 20 by the integral hinge lugs 22, 22 each of which has curved front and rear hinge fins 24, 26 that fit quickly on a piece of hinge 28 integral with the upper structure 14 and which is moderately understood through a hinge opening 30.

An agitator 32 is easily mounted within an opening 34 formed on the suction nozzle 10 when the lid 18 is hinged to open the condition having each of its supporting ends 36 each including a pair of section axes 162 and 170, arranged within an upward opening groove 38 formed and disposed on an inner side 40 of the lower structure of the nozzle 16. Each of the grooves 38 is provided with a curved base 41 for easily receiving a stirrer supporting the axes of final section 162 or 170.

The lid 18 includes a centrally located fastener 42 having an engagable nose 44 which engages, in the engaged position, an upper edge flange 46 of the lower structure of the nozzle 16. The cover 18 also includes an upper end 47, lateral curvilinear walls 48, 48 and a front wall 50 extending therebetween that integrally mounts to the fastener 42.

The suction nozzle 10 also includes a suction groove 52 in the lower structure of the nozzle 16 through which an outer periphery 54 of the agitator 32 conveniently extends when mounted in the suction nozzle.

A suction cavity 56 formed between the upper and lower structures 14, 16 and housing the agitator 32 is defined as its front by an upwardly extending wall 58 and the end walls 60, 60 of the lower structure 16, the front wall 50 of the upper structure, its upper side 47 and its lateral curvilinear walls 48, 48. On its back of the suction cavity it is defined by the rear curvilinear walls 62, 62 on the lower structure 16 and which engages the rear curvilinear walls 64. , 64 on the upper body 14. The curvilinear walls 62, 62 and 64, 64 are joined by the straight rear wall portions 66, 66, 68 and 68, respectively, (Figures 3 and 4) so that so that the flow of the suction air stream line is obtained towards the rear portions of the suction nozzle 10 formed by the tube of the suction nozzle 70.

The suction tube 70 has an internal coupling part 72 (Figures 10 and 11) which is rotated to the rest of the nozzle which is rotatably mounted to the shaft 74 which is not rotatably mounted to the sprockets 12, 12 by means of flute or the like. . The internal coupling part 72 forms, in cross section (Figure 11) a relatively straight angle sector having reinforced sector ends 76, 76 and a curvilinear upper portion 77 (Figure 13). The right angle formed ensures that the curvilinear upper portion 77 extends sufficiently to never lose its seal with the remainder of the sprocket nozzle 10. The ends of the sector 76, 76 each have a reinforcing flange extending angularly transversely. 78 and upward and inward angle sections 80, 81 on each of the sides of the flange 78. These sections, in their interior, form a fusion of the current line with a tubular open position 82 (FIG. 10) of FIG. the inner coupling part 72 of the suction tube 70.

In general, in a downward portion of the internal coupling part, and close to and integral with the backrest, is an axle receiving the extended flange 84 (FIG. 11) including short projecting ends 86. The shaft 74 fits within the axis that receives the flange 84 in a centered relationship, but is not supported by it so that rotation of the shaft 74 relative to the internal coupling part 72 or vice versa has no effect.

The internal coupling part 72 is received "supporting outwardly on pieces supporting guides 88, 88, each of which includes an edge 90 (FIG. 12) that is received rotationally on the outwardly projecting flange ends 86 of the internal coupling part 72. Outwardly of the annular edges 90, the guides supporting the parts 88, 88 include annularly hollow flanges 92, 92 which are square in elevation view and serve to maintain the guides supporting the parts 88, 88 in a non-rotational relationship with the remainder of the sprocket nozzle 10. Outwardly of the flanges 92, 92 the guides supporting the parts 88 include an annular cylindrical portion 96 at each end which has an annular groove 98. The annular groove 98 has an internal annular periphery 99.

Each of the structures of the upper and lower nozzles 14, 16 includes middle annular walls 100, 100 (FIG. 4) and 102, 103 (FIG. 5) respectively, which receive the inner annular periphery 99 of the annular groove 98 and the walls linear sides 104, 104 and 106, 106 respectively, which receive the rectangular profiles 105 (FIG. 11) of half of each of the flanges 92, 92. The annular walls 100, 100 and the linear side walls 104, 104 are formed in integral flanges 108, 108 (Figure 4) by the linear flanges 110, 110, 110 and 110 in the upper structure of the nozzle 14. The annular walls' 102, 102 and the linear side walls 106, 106 are formed in the eyelashes integral 112, 112 (Figure 3) in the lower structure of the nozzle 16 by the linear flanges 114, 114, 114, 114 in the lower structure of the nozzle 16. The flanges 108, 108 in the upper structure of the nozzle confront the tabs 112, 1112 in the The upper structure of the nozzle 16 and the flanges 110 r 110 in the upper structure of the nozzle 14 confront the flanges 114, 114 in the lower structure of the nozzles to form continuous openings for complete housing for the guides supporting the parts 88.

The cylindrical portions 96, 96 of the guides supporting the pieces 88 then extend between the flanges 108, 108, 110, 110, 112, 112 and 114, 114 to space the guide that supports the piece 88 laterally with the annular grooves 98. , 98 and the square flanges 92, 92 in their coupled portions. The middle moldings 113, 113, 115, 115 (FIG. 11) on the flanges 117, 117 of the upper structure of the nozzle 16 and 119, 119 of the lower structure of the nozzle 14, respectively, also engage the annular edges 90, 90 of the guides supports 88, 88.

The shaft 74 for the sprockets 12, 12, outwardly of the guide supporting the part 88 extends through and out of the medium cylindrical openings 116, 116 (FIG. 4) in the inner side walls 118, 118 of the structure of the upper nozzle 14 and the middle opening of the cylinder 120, 120 (FIG. 3) in the inner side walls 122, 122 in the lower structure of the nozzle 16. Outwardly of the side walls 118, 118, 122 and 122, the shaft 74 is mounted fixedly and not rotatably to the sprockets 12.

Cogwheels 12, 12 are particularly shown in Figure 8 and each includes flange of inner gear 124 and a wheel 126. The flange of inner gear 124 includes an inner side beam 128 having beams 130, 130 , 130 and 130 which extend and are integral with a gearwheel punch 131 and with a flat circular face disk 132 on the opposite side of the flange of the internal gearwheel 124. A central interrupted peripheral flange 134 extending circumferentially close to the inner flange of the sprocket 124 ensures a fixed pressed interference between the inner sprocket and the wheel 126.

The wheel 126 is closed on its outer surface by the tips 136, 136, etc. These tips have sufficient columnar effort to remain undeformed when the sprockets 12 rotate as the spout of the sprocket 10 moves around during its cleaning function. The prongs 136 therefore tilt and flex as the sprockets 12, 12 rotate to increase the coefficient of friction bearing and also to provide a tendency toward self-cleaning (eg spongy discharge and the like).

The wheel 126 includes for ease of molding, an exterior, non-cracked surface 138 that extends completely around the periphery of the wheel 126. The non-cracked surface 138 also includes a vertically extending circular flange 140 (Fig. 1) which it engages against the flat face 132 formed on the gear 124 on its outer side. The wheel 126 is mounted by reducing it on the internal gear 124 elastically to deform its inner surface near the interrupted periphery of the flange 134.

Wheel 126, to provide deformably, an increased friction coefficient of friction and self-cleaning utilizes polyvinyl chloride as the base constituent. The satisfactory deformation of the tips made of this material can be done if its truncated conical shape has a root diameter of 0.0935", an upper termination diameter of 0.625" and a height of 0.093". The rows of tips each contain three and row to row is aligned to obtain a better tensile stress when the sprocket nozzle 10 is maneuvered in its cleaning function There are 50 rows The flat section 138 of the wheel 126 is 0.025"wide. The distance from the edge of the wheel to the nearest point is 0.375"and the points are 0.25" apart from the center line to the center line. The total width of the wheel is 0.95".

The agitator 32 is shown in detail in Figure 9 and could advantageously include a fluffy surface, similar to cotton 142 on its outer perimeter if the nozzle of the sprocket 10 is to be used for bare floors. Of course, a different agitator such as a brush agitator could be used for a different cleaning purpose. For the general purpose of this invention, a commercially obtained paint roller configuration could be used. Of course, it includes a cylindrically shaped hole 144 that extends for its total length.

The assembly within the hole 144 is through an axis 146 formed by a first molded net 147 which is formed "centrally intersecting the arms 148, 148, 148, 148 (only two are shown) that are spaced 90 ° with respect to each other. one and the other and provide the required strength for the shaft 146. Intermediary to its length, the shaft also includes a second network 150 that extends perpendicularly to each of the arms 148, 148 148 and 148 and extends between them. this location each of the arms of the network 150 takes the form of the fourth of the circular disk.

The ends of the shaft 146 include the cross structures 152 and 154. These cross structures end in the axial length of the arms 148, 148, 148 and 148 at each of the ends of the arms. The cross structure 152 (near the end of Figure 9) includes outward, radially, triangular, extending arms 156, 156, 156, 156 of the isosceles triangle configuration which are axially aligned with the arms 148, 148, 148 and 148 and they have each of their annexed centers 158 that are directed outwards. The space between the arms 156, 156, 156 and 156 includes an elongated portion 160 on the side of which a steel shaft is to be used on this end of the shaft 146 of a section shaft 162.

The cross structure 154 (far end of Figure 9) also includes axially extending arms 164, 164, 164, 164. These arms are also triangular, but triangular right in shape and have their elongated ends towards the outer end of the shaft 146. This provides a reinforcement for a circular face disk 166 integrally attached thereto (which is more fully described. later) . Between the arms 164, 164, 164 and 164 is elongated, another portion 168 of the shaft 146 which allows the possible mounting of a steel shaft within the end of this shaft 146. An integral shaft section 170 (Figure 7) is used currently at this end of the agitator 32 to rotatably mount it.

The actuation arrangement for the sprocket nozzle 10 is mounted on this end of the agitator 32 by using the shaft section 170 which not only supports the agitator 32, but also mounts a small toothed pulley 172 (FIGS. 7) which could be fixed to the disk in any appropriate way (not shown). The proper rearward positioning of this toothed pulley is a toothed belt 174 which extends over a large toothed pulley 175. The toothed pulley 175 is received in the middle of an upwardly opening base cavity 176 in the lower structure of the nozzle 16 and half in the upper cavity of the downward opening 178 formed in the structure of the upper nozzle 14.

The toothed pulley 175 is fixedly mounted on a short shaft 180 which is also fixedly mounted adjacent to its other end and a small gear 182. To provide for easy rotation of the toothed pulley 182 outside the large toothed pulley 174, the shaft short 180 is characterized in middle rows 183, 184, 186 and 188 in the lower structure of nozzle 16 (figure 3) and in middle rows 189, 190, 192 and 194 (figure 4) is the top structure of nozzle 14 The short shaft 180, as conventional, could be narrowed or similar to keeping the toothed pulley 175 and the small gear 182 fixed.The small gear 182 is mounted in the cavities 196 and 198 in the structures of the upper and lower nozzle. , respectively.

The small sprocket 182 is a sprocket with a large rear sprocket 200 which is fixedly mounted on the shaft 74 to rotate therewith. It could be used to join this splined gear. The gear 200 also fits in the cavities 196 and 198.

The operation of the sprocket nozzle 10 on a surface to be cleaned causes the sprockets 12, 12 to drive directly on the large sprocket 200"which is in engagement with the small sprocket 182. This reverses the rotating directions relative to the sprockets 12 and the agitator 32 and increases the speed of the agitator The toothed pulley 182 then drives the large toothed pulley 175 by means of its fixed mounting on the short axis of the shaft 180. The toothed belt forward 174 drives the small toothed pulley 172 fixed with the agitator 32 to provide a second stage in the speed.This provides a stirrer with a speed ratio significantly greater than its sprockets and, also, an agitator that tends to move inward of the nozzle of the gear 10 and through its opening 34 when the nozzle moves forward.

The discussion of completed sprocket nozzles by reference to a pair of small front roller sprockets 202, 203 positioned to support the first cor of the sprocket nozzle 10.

It should be clear from the foregoing description that all the objectives set forth in the beginning portion of the Specification have been established. In addition, it should be obvious that many modifications could be made to it which would fall within the spirit and point of view.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it relates.

Having described the invention as above, the content of the following is claimed as property.

Claims (20)

1. A suction nozzle, characterized because it includes: a) a housing having front and rear ends and formed with a cavity adjacent to the front end; b) an agitator removably and rotatably mounted "inside the cavity; c) a hinged cover connected to the housing and movable between an open position which provides access to the cavity that allows the stirrer to be removed, and a closed position covering the cavity preventing the stirrer from being removed; d) a front pulley rigidly connected to one end of the agitator whereby the rotation of the front pulley drives the agitator; a rear pulley rigidly connected to the shaft, said shaft being rotatably mounted on the intermediate housing to the front and rear ends; f) a belt extending between the front and rear pulleys whereby the rotation of the rear pulley drives the front pulley, the belt being partially accessible when the lid is in the open position; g) a rear sprocket rotatably connected to the axle whereby the rotation of the toothed pulley "drives the axle and the rear pulley; h) a rear sprocket rotatably connected to the housing adjacent the rear end thereof; Y i) a rear pulley rigidly connected to the rear toothed pulley, the toothed pulley engages the front toothed pulley whereby rotation of the rear sprocket drives the front sprocket.

2. The nozzle found in claim 1, characterized in that the rear sprocket has a diameter greater than the diameter of the front sprocket.

3. The nozzle found in claim 1, characterized in that the rear pulley has a diameter greater than the diameter of the front pulley.

4. The nozzle found in claim 1, characterized in that the front and rear pulleys and the belt are toothed.

5. The nozzle found in claim 1, characterized in that the agitator is formed of a spongy material that allows the nozzle to clean and provide shine to bare floors.

6. The nozzle found in claim 1, characterized in that the rear sprocket is grooved to include a plurality of tips extending outwardly around an outer periphery thereof.

7. The nozzle found in claim 6, characterized in that the tips are generally conical in shape and have a truncated outer end.

8. The nozzle found in claim 7, characterized in that it further includes a pair of slotted rear sprockets.

9. The nozzle found in claim 1, characterized in that it further includes a cylindrical shaft extending from opposite ends of the agitator.

10. The nozzle found in claim 9, characterized in that a curved groove is formed in the opposite lateral walls of the housing, said curved grooves having an open upper end for receiving the cylindrical shafts of the agitator.

11. The nozzle found in claim 10, characterized in that the lid includes the side walls that extend downwards which closes the open upper end of the slots when the lid is in the closed position to keep the stirrer rotatably in the cavity.

12. The nozzle found in claim 1, characterized in that the agitator rotates in a direction opposite to that of the rear sprocket when the suction nozzle moves through an uncovered floor.

13. A suction nozzle driven by the sprocket, characterized in that it includes: a) a housing having front and rear ends and formed with a cavity adjacent to the front end; b) an agitator having a soft spongy material on an external surface thereof for cleaning and gloss of an uncovered floor, said agitator being removably and rotatably mounted within the cavity; c) a hinged cover connected to the housing and movable between an open position which provides access to the cavity and allows the stirrer to be removed, and a closed position covering the cavity preventing the stirrer from being removed; d) latching means for releasably retaining the lid of the closed position; Y e) a rear pulley operatively connected to the agitator whereby the rotation of the gear rotates the agitator.

14. The nozzle found in claim 13, characterized in that the toothed wheel is slotted to include a plurality of tips extending outwardly near an outer periphery thereof.

15. The nozzle found in claim 14, characterized in that the tips are generally conical in shape and have a truncated outer end.

16. The nozzle found in claim 15, characterized in that it also includes a pair of slotted rear sprockets.

17. The nozzle found in claim 13, characterized in that it further includes a cylindrically shaped shaft extending from opposite ends of the agitator.

18. The nozzle found in claim 17, characterized in that a curved groove is formed in the opposite side walls of the housing, the curved grooves have an open upper end to receive the cylindrical shafts of the agitator.

19. The nozzle found in claim 18, characterized in that the lid includes the downwardly extending walls which are attached to the open upper end of the slots when said lid is in the closed position, the side walls hold the stirrer within the cavity when the lid is in the engaged position.

20. The nozzle found in claim 13, characterized in that the agitator rotates in a direction opposite to the rear sprocket when the suction nozzle moves through the bare floor.