MXPA98003584A - Configuration of suction nozzle of an aspirad - Google Patents

Abstract

The present invention relates to a suction nozzle characterized in that it includes: a) a main body serving as the base for the suction nozzle, the main body has an external surface, b) a bell mounted on the main body, the bell has an internal surface and an external surface, c) a dividing line between the bell and the main body, d) at least a portion of one of the internal surface in the bell or the external surface in the main body is staggered in the dividing line; and e) the stepped portion forms an insert whereby the bell and the main body, in the stepped portion provide an external co-plan surface

Description

• SUCTION NOZZLE CONFIGURATION OF A VACUUM CLEANER BACKGROUND OF THE INVENTION Field of the Invention This invention relates to a vacuum cleaner, and more specifically, to a nozzle arrangement of * a vacuum cleaner. 10 Brief Description of the Prior Art In North American Patent No. 5,513,418, owned by a common transferee, the provide suction ducts placed forward and backward which extend along the front and rear sides of a suction nozzle to drive the suction air towards a fan communication duct, which extends backwards. It is also known from this patent to make an outer covering piece of a portion of the communication conduit, which extends between the front and rear sides of the removable suction nozzle. Also to From this patent it is known to elaborate in the REF: 27377 agitator tunnel an interior structure in your nozzle. It is also generally known to provide a bell structure that either sits on its underside or obviously overlays it. 5 However, the advantageous placement of the suction nozzle duct coverage within the limits of an agitator chamber or the use of an agitator tunnel arrangement, easily • discernable by the user of the vacuum cleaner or a , nozzle exterior geometry, pleasant as the presentation of a smooth line between the bell and its bottom has not been known until the date contemplated in the prior art. Therefore, it is an object of this invention, provide an improved suction nozzle configuration. It is a further object of this invention to provide a suction nozzle with either a front and / or a back channel that can be adjusted or accommodate in a nozzle that has as a structural requirement an inner conduit cover. It is still a further object of the invention to provide a reduced nozzle hood of suction that is joined with a necessary undercarriage of the suction nozzle to smoothly form at least a portion of the outer peripheral surfaces and of the upper part of the suction nozzle. It is a further object of the invention to reduce the periphery of the hood of the suction nozzle, so that the outer profiles of the separator agitator tunnel chamber for the user, so that this structure serves as a portion of the nozzle of external suction, observable, per se. It is still a further object of the invention to provide an improved structure of the suction nozzle including front or rear suction nozzle conduits. It is still a further object of the invention to provide an improved, removable, suction nozzle cover structure and arrangement.

BRIEF DESCRIPTION OF THE INVENTION The invention is provided in a suction nozzle including the rear handle articulation structure, the rear wheels and intermediate wheels positioned further forward. These wheels mentioned to the latter are transported in a pivot carriage structure in the suction nozzle, so that they can rotate in and out of the suction nozzle to thereby adjust their height. All the related structure 5 so far is transported in a main body of the suction nozzle and can be seen completely, for example, in Hoover Case 2469, filed with the US Patent Office on March 21, * 1997. 10 Crowning this main body, at least at the front portions, is a bell piece formed with an opening near its source, which includes, in the illustrated embodiment, an open discontinuity on the inner side of the bell piece what opens down. The bell piece, in addition to this discontinuity, only extends partially backwards from its frontal coverage position in the main body, so that in general there is a vertical and horizontal division line, observable, in general at about half the depth of the front back of the suction nozzle. The surface of the main body is recessed in at least part of its area that joins the bell, so that on the surface on each side of the division between this is, within manufacturing tolerances, as smooth and coincident as possible to produce a very attractive complete nozzle presentation. Within the opening formed by the discontinuity in the bell, on its right side, there is an observable portion of the outside of a cylindrical wrap stirring tunnel chamber (looking from the front of the suction nozzle), and the outside of a cross duct communicating with a front and rear duct of the suction nozzle (to the left of the agitator tunnel chamber). Also apparent is a lever for adjusting the height of the suction nozzle and its graduation means, generally positioned in and behind the tunnel of the agitator chamber. A front duct is partially formed on its upper side by an angled surface, formed just outside the appropriate agitator tunnel, on the front and inner side of a stirrer housing. This surface is angled upwards from its outer end to provide a constant transport speed attribute to the front conduit. This surface terminates in a curvilinear, smooth manner, adjacent to a portion of the transverse conduit, formed in the agitator housing that extends through the interior of the agitator housing near one of its ends. A short duct surface is also formed on an opposite inner side of the cross duct portion 5 and on the rear inner side of the agitator housing. A rear duct surface is also angled upwardly within the agitator housing and extends generally from a guard of semi-cylindrical, hollow-shaped belt mounted adjacent an opposite end of the agitator housing from the transverse conduit portion, just outside the agitator tunnel chamber. 15 The semi-cylindrical belt protector is formed integrally with a removable, inner cover, which is also in the form of a cylindrical shell and extends internally within and in general to the full length and width of the agitator chamber tunnel. A portion of its upper cylindrical surface, from the bottom, forms the inner wall of the inner and outer conduit. It is mounted with screw to the agitator housing, and because it is internal to the agitator housing, Any leakage in this would, advantageously, cause it to impose more suction in the tunnel of the agitator chamber and thereby provide a suction nozzle with a more effective cleaning capacity. The front and rear ducts for the suction nozzle are terminated by a bottom plate which is screwed to the agitator housing. Includes the front and rear lips, which extend inward and laterally, forming the final sides of the bottom of the mouthpiece suction. The front and rear lips also produce the sides of the bottom of the ducts back and forth. These two lips are separated vertically from the terminations of the bottom of the duct cover, in their interior terminations to thereby allow the easy entry by slot of the suction air, the dirt carried by the air, and the dirt driven by the agitator in both the front and rear ducts. It is transported from there to a suction hose connected to back equipped for eventual movement in a fan arrangement of. motor (not shown) for the vacuum of which the suction nozzle is a part.

BRIEF DESCRIPTION OF THE DRAWINGS Reference is now made to the attached drawings for a better understanding of the invention, both in their organization and function, with the illustration that is only an example and in which: Figure 1 is a view of the upper, respective upper part, of the right side of a suction nozzle embodying the invention; Figure 2 is a perspective view of the bottom, on the right side of the same nozzle and rotating upwards with its duct cover and its bottom plate removed; Figure 3 is a perspective view of the bottom, on the right side, similar to Figure 2, with the duct cover in place; The 1 Figure 4 is a view similar to the Figures 2 and 3 with the bottom plate of the nozzle in place; Figure 5 is a cross-sectional, truncated view of the suction nozzle of Figure 1, taken on lines 5-5 thereof with the bell removed; Figure 6 is a cross-sectional, truncated view of the suction nozzle in Figure 1, taken on line 6-6 thereof with the bell removed; Figure 7 is a partially schematic, cross-sectional, truncated view of the suction nozzle in Figure 1, taken from line 7-7 thereof with the bell removed; Figure 8 is a cross-sectional view of the suction nozzle of Figure 12 taken from line 8-8 thereof; Figure 9 is a partial cross-sectional view of the orifice of the conduit cover and its communication port of the suction nozzle; Figure 10 is a cross-sectional view of the suction nozzle taken on line 10-10 of Figure 12; Figure 11 is a front, right, perspective view of the main body; Figure 12 is a plan view of the suction nozzle embodying the invention; Y Figure 13 is a perspective view, on the right, lower side of the hood for the suction nozzle, facing upwards.

DETAILED DESCRIPTION OF THE INVENTION More specifically shown in Figures 1-4, a suction nozzle 10 having a rather extensive main body 12, crowned by a reduced bell 14. The main body includes the rear wheels 16, 16 and a carriage 17 of wheels adjustable in height, mounted on pivot, front, but placed intermediate (Figure 10-not shown completely, but described completely in the case Hoover 2469). The suction nozzle 10 also includes the garbage peaks 18, 18, positioned laterally and a discontinuity 20 partially formed by a cut portion of the hood and partially by a termination 22 of the front wall of the main body 12. furniture protector 19 extends around the front of the suction nozzle 10 and its sides end behind the garbage peaks 18, 18 and a pedal 21 is placed * Release foot on the back edge of the nozzle. The suction nozzle 10 includes on its bottom side 24, a reduced bottom plate 26 having cross bars 28, 28, 28 and an adjacent belt cover portion 30. One is placed suction opening 32 in the cross bars 28 and a suction opening 34 in the far side of the belt cover portion 30. The bottom plate 26 is mounted securely to the bottom side 24 of the main body 12 by screws 36, 36, 36 and 36 which are extend into the protuberances 38, 38, 38, and 38 formed in the main body 12. The bottom plate 26 also includes a rearwardly extending cover 39 with vertical, off-center reinforcement walls 41, 41 and 43. This cover forms the bottom side for a housing 45 of the belt protector, integral with the main body 12. To the rear of the plate 26 of the bottom of the housing, the suction nozzle 10, along its sides, includes a pair of lateral walls 40, 40 that extend vertically outside, integral, short, separated, which are staggered inward by a pair of portions 42, 42, rear, angled, straight. These form wells for the assembly of rear wheels through the protections of the holes 44, 44 of the wheel axle assembly (only shown 1). To the front and bottom of the rear wheel mounting wells there are a pair of mounting slots 46, 46 for the carriage assembly wheels, pivotably mounted (Hoover 2469 case). This wheeled cart provides the support for the nozzle 10 forward of the wells of the rear wheels. A pair of openings 48, 48 in general centralized, are provided in the main body 12 by a wall 50, integral, which extends in general vertically, angled, stepped. This wall is placed slightly forward of the mounting slots 46, 46. These openings provide open space and for the tips 51, 51 • integrally mounted with the anterior carriage 17 (case 2469). They can be fitted by, and moved by, the hard, protruding bag handle (not shown) when placed in a storage position 5 to pivot out the wheeled cart 17. Behind the stepped, angled wall 50 of the main body 12, is formed with a pair of concave sections 52, 54, projecting towards below, which extend axially laterally relative to the main body 12. The concave section 52 is slightly smaller than the concave section 54, since it accommodates a housing section (not shown) of hard bag motor, small diameter, while the concave section 54 serves as a base for the housing section (not shown) of the larger, hard-bag fan. In the middle of these two sections is a large rectangular hole 55 (plan view) that accommodates a larger end of the hard bag motor housing (not shown). The concave section 54 is fused therewith, a concave section 56. The concave section 56 is transverse to it and extends towards the front portions of the main housing and ends forward just near a cut 58 (both which are described later) in a duct cover 60 mounted inside a generally cylindrical tunnel 62 formed in the main body 12. The tunnel 62 forms, at least partially, the outer casing for an agitator chamber 64. This tunnel includes the staggered, semi-cylindrical ends 76, 76 having the wells or cavities 65, 65 for receiving the ends of a stirrer (not shown). The concave section 56 provides an expensive space for a hose fitting (also not shown) that extends from the hard vacuum bag (not shown). An open slot 66, positioned intermediate the front and rear handles of the main body 12, extends parallel to these for the insertion housing of a part of the height adjustment arrangement. (not shown) for the wheel carriage 17 for the suction nozzle 10. The corrugated surface 68, 70 lattice-like, to the right and to the left, forms the reinforcing structure for the main body 12. This ensures sufficient structural rigidity and durability. Turning now specifically to Figures 3 and 4, it can be seen that the cover 39 of the belt guard conceals a cavity or pit 72 in the housing 75 of the belt guard for the positioning of a belt (not shown) extending roughly between the left-hand termination 5 of the front and rear mid-point of the concave section 52 of the motor housing and a front end portion 74 of the cover 60 of the conduit. The cover 60 of the conduit takes the form of an elongated semi-cylindrical envelope and is extends longitudinally between the lateral ends extending forward of the vertical walls 76, 76 of the main body. The vertical walls 76, 76 form the ends of the chamber 64 of the agitator. The walls 76, 76 are joined in its rear parts to the side walls 40, 40 that extend vertically through the angled transition walls 68, 68. The cavity 72 for the strap, (not shown) formed generally by the housing 45 of the protector of strap, is limited along its length by the walls 80, 80 of the main body, integral, elongated, reinforcing and guarding. These walls look like they extend in general from the back of the agitator chamber 64 near the side rear of the concave section 52. They end in a wall 82 crossed, rear. In their fronts, they extend far enough forward in the suction nozzle 10 to separate the cover 60 from the conduit sufficiently forwardly to accommodate the necessary back channeling (which will be described later). The cover 60 of the conduit, at the belt end, includes a pair of internal walls 84, 84, laterally spaced, vertically erect, short, having arcuate upper sides to provide between them the belt guide and the same for agitator bearing seals (not shown). These walls are parallel and separated from each other to provide sufficient sealing complete for the belt (not shown) and extend downwardly and outwardly enough to form a fork 86 for the agitator (not shown) receiving with a bearing. They are correspondingly formed pieces (not shown) in the inside of the bottom plate that serve as the other half of the agitator seal. An interior surface 88 of the cover 60 of the conduit includes a platform 90 positioned rearwardly that provides clear space for the belt and its operation. Adjacent to this platform, the main walls' 80, 80 of the housing 45 of the belt guard extend forwardly through the wall sections 92, 92 to assist in the separation of the aforementioned cover 60 from the duct. This cover 60 of the conduit is also separated inside the tunnel 62 by screw receiving rings 94, 94, 96, 96, integrals that are placed at their ends, so that their front and rear termination sides form front and rear slots 98. , 100 with the inner surface of the tunnel 62. These two slots form the main flow path for the movement of air sucked into the suction nozzle through the hose (not shown). This hose is placed above the hose protrusion 56, concave in shape, of the main body 12. The sucked air also moves, of course, through the cut 58 to this same hose. The partially cylindrical volume between the two slots 98, 100 in the suction nozzle 10 housing the agitator (not shown) also serves in this way as a low pressure suction region which can also be depressurized by any air leak in the front and rear ducts around the cover 60 of the duct.

• The tunnel 62 in the main body 12 is also generally a piece similar to a cylindrical envelope both on its inner and outer surface 102, 104. These are both generally soft and continuous and both resemble a shape at least a part of the interior and top surfaces of a silo. The tunnel 62 (Figure 2) includes adjacent to its F inner front surface, one surface 103 angled, formed, leading that angles deeper into the main body 12 (downwardly in Figure 2) as the surface progresses to the right. In this way it forms a tunnel ramp 62 as it extends towards the tunnel exit. Its shallowest depth is just outside the protrusion 38 further to the left and forward, just out of the adjacent one with the platform 90 of the belt, and angled inwardly and upwardly from there towards a section 106 of cross-flow, enlarged channel that is interleaved from the surface 102 of the tunnel 62. The section 106 of the cross flow channel includes an interior position 108 of flat surface that joins an outer, surface portion 110 cylindrical, partial, curvilinear. Both of these surfaces are placed above relative to the surface 102 of the tunnel 62. The inner portion 108 becomes flat due to the molding breaks, while the portion 110 provides a smooth fusion with the inner portion 108 and a portion 112 curvilinear surface that extends laterally, elongated. This portion of the surface smoothly merges with the outer portion 110, at that end, in an interleaved curve 114, which extends rounded and the air flow of the flow lines on the front side of the suction nozzle 10 towards the outer surface portion 110. At its other end, the curvilinear surface 112 fuses smoothly with the ramp 103 of angled surface.

The curvilinear portion 112 is not quite as wide as the surface ramp 103 to provide an interleaving 116 for the outer portion 110. This separates inward from a front wall 118 of main body 12 and accommodates a small curve side by side on this front wall. The intercalation 116 is flat and separates outwardly from the portion 112 of the curvilinear surface. The front interior shape of the tunnel 62 is terminated by a curvilinear edge shaped part 120 formed between the expansion curve 114, the curvilinear surface portion 110 and the interleaving 116. A continuous, smooth surface is formed with these curved surfaces. The edge-shaped piece 120 forms a continuation with flow lines of the curve of the outer portion 110. In the middle of the tunnel 62 and extending parallel to its linear extension is a pad 122 in general rectangular, interleaved. This # pad provides a flat surface convenient for the use of graphic products on the upper side of the suction nozzle and preserves the material in its formation when interspersed. The inner surface of the tunnel 62 is substantially complete by another surface 124 angled forming a ramp of air convergence that gives down on the back side of the nozzle. This ramp also angles inward as it moves toward and passes a center line of the suction nozzle, so that it extends upwardly into of the tunnel 62 and its cylindrical surface 102, internal. It extends from the interior of the extended walls 92. Due to its interleaved arrangement with respect to an opposite upper surface 126 (Figure 1) that is, a placement eventually upwards and outwards from the surface 102, a vertical, tapered wall 128 is formed adjacent the rearwardly terminating edge 130 of the cylinder surface 102 as a smooth continuation of the tunnel 62. It extends approximately along 5 the angular surface 124 from its termination to the right and reduces its width slightly, but is not advantageously to any marked degree. The angled surface 124 has a junction wall 132 that extends generally vertically, positioned rearwardly, extending from the angled surface forward through the flat surface 108 of the flow channel 106 to merge with the expansion curve 114. The angled surface 124 extends between the section of extended wall 92, cuts the housing 45 of the belt guard to platform 108 adjacent to cut 58. Now going back to Figure 3, with the description given in relation to Figure 2, kept in mind, it seems clear that on all three sides of a front conduit 136 of the suction nozzle is formed, respectively, by the front wall 118 of the main body 12, by the angled surface 103 and the portion 112 of curvilinear surface and for outer wrapping side 138 (Figures 5-7) of the F cover of duct 60. Due to its configuration, this duct has an attribute of constant expansion velocity. A back duct 140 is provided with three sides by the angled surface 5 124, by the connecting wall 132, and by the outer wrapping side 138 of the casing 60 of the duct. Due to this configuration, this conduit has a constant velocity expansion attribute. The cross flow channel 106 for the The front conduit 136 is formed by the interleaved platform and the portion 108 and 110 of the curvilinear surface, respectively, and the wrapping side 138 of the conduit jacket 60. The duct cover 60 is also easily removable from the suction nozzle 10 by removing the screws 36, 36, 36, 36 so that the front and rear ducts 136 and 140, respectively, can be used in any dirt, dust or debris adhered to their interior surfaces. In this regard, it should be noted that the leakage in any of these conduits, advantageously, is not from the atmosphere but from within the agitator chamber 64. This results in a decrease in the pressure in the same and an added impetus for the suction air to move in this chamber from the surrounding carpet or floor in which the suction nozzle 10 is operating. The structure of the conduit cover 60 is terminated by the use of integral, half-ring-like terminal parts 142, 142, which place the conduit cover within the tunnel 62 during assembly, so that the rings 94, 94, 96, 96 are affixed appropriately to help the restraint of the screws 36, 36, 36, 36 to mount the suction nozzle 10 in this way. Turning now to Figure 4, with the description of Figures 2 and 3 in mind, it can be seen that the bottom plate 26 closes the final side (bottom) of the ducts 136, 140, respectively, this is caused by the protections of the band plate pieces 144, 146, integral, front and rear, respectively, and the bottom plate 26. These parts they spread in general between its screws 36, 36, and 36, 36 front and rear, and thus cover and mask the front and rear ducts 136 and 140. The bottom plate 26 is also hermetically mounted to the main body 12 by the screws 36, 36, 36, 36 so that the suction air passing in the conduits 136 and 140 must first be moved in the suction nozzle 10 and its agitator chamber 64 by means of the suction opening 32 and 34. The air passing through these openings 5 enters the front and rear ducts 136, 140 because the tape plate pieces 144, 146 of the bottom plate 26 separate downward from the edges of the bottom and finish 148, 150 of the cover * 60 of the conduit. This happens because the walls 152, 154 vertical, front and rear, respectively, plate 26 of the bottom place the plate plate pieces 144, 146 in this separate location. A lip 156 in the vertical front wall 152 ensures its vertical position relative to the main body 12, while a groove 158 formed in vertical, rear wall 154 accomplishes the same purpose for this. The air moving through the front and rear ducts 136 and 140 escapes (Figure 9) through an air outlet orifice 160 or discharge in the portion 134 of the orifice of the air outlet wall. This orifice is with flow lines to have an orifice lip 162, molded, curved inwards, as if it were rolled up of metal. As noted above, the cut 58, as shown, is aligned with the outlet orifice 160 so that the suction air is free to exit the suction nozzle 10 through this orifice. Additionally, however, the cut 58 includes an air cut 164, partially rounded on each side, in a manner, to make the cut 58 made with flow lines and slightly larger than the air exit orifice 160 in all its dimensions. For this purpose then, the main profile of the cut 58 is a circle of larger dimension than the exit orifice 160 with the shell edges 166, 166 to do so with flow lines. This arrangement allows the passage of large debris in the suction system of the suction nozzle 10. Returning now to the mounting arrangement of the hood 14 in the main body 12 (Figures 1, 8, 10, 12 and 13). It can be seen that the bell 14 is reduced in its dimension and includes a pair of pieces 166, 166 (in cross section) of upper structure that extend backwards, between which, there is a front, narrow, cross-section 168 which is also curvilinear in cross-section and forms with the front portions of the upper-structure parts 166, 166, the front of the suction nozzle 10. The parts 166, 166 of the upper structure are closed at the rear by a second piece 170 crossed, slightly raised and angled. The upper structure pieces 166, 166, at the rear thereof and along the sides of the suction nozzle 10 have shell sections 172, 172 which are blended forwardly with the transversely extending portions 174, 174 of the bell extending laterally to cover the ends of tunnel 62. This also gives the suction nozzle 10 a hammer hood appearance with flow lines. The bell includes, as noted above, the cut 20 through which the somewhat square, curvilinear outer portion 106 of the cross flow channel 106 can be seen to be headed backward over the tunnel 62. A portion of the tunnel 62 which includes, in an available manner, its cylindrically shaped outer compression surface 104 which is also seen to extend in a parallel section along the front of the suction nozzle 10. As seen well, the exterior of the interleaved pad 122. This provides an open view of these components, especially the cross flow channel and the rounded portions of the tunnel, to assist the consumer in acquiring knowledge of some of the ramifications of the operation. and characteristics of this nozzle with double ducts. Positioned within the discontinuity 20 and generally inwardly thereof and extending from the vertical, integral wall 178 of the main body 12 is a protruding lever 180 and having a hook end 182. This lever extends through a groove. with notch 184 in vertical wall 178. The lever and slotted wall are a portion in the middle of height adjustment, described fully in Hoover Case 2469, with the lever being able to move from notch to notch as the medium operates of height adjustment mentioned above. Returning to Figure 13, where the inner surface of the bell can be seen more easily, a lower, termination edge 186 including a front end 188 and the hammer head side edges 190, 190 is shown, at right angles , curved inwards, integrally joined to the front edge of the bell. These hammerhead side edges on a curved, arcuate section edge 192 that is generally vertically and slightly backward to end up at the overlap edges 194, 194, and rear. These edges smoothly fuse to their outer sides with the edges 192, 5 192 of arched, curvilinear section. Inward from the overlap edges and placed between them is a vertical, transverse wall 193 extending along most of the rear side of the bell. The main body 12 has an edge of junction 196 with which the lower edge 186 of the hood merges. It comprises a front plane lip 197 extending from side to side in the main body 12 on its front side. The flat, front lip 197 fuses on each side in a side lip 198 which generally extends the width of the tunnel 62 and then merges into an angled lip 200 (plan view) that extends around a rear corner of each end of the tunnel 62. These lips receive the edges 188, 190, 190 of bell, respective in a the abutting relationship with these when the hood is mounted on the main body 12. At the rear, the main body 12 is provided with a vertical wall 202, integral therewith. Receives the bottom side on the wall transverse 193 vertical of the hood 14 in a • butt joint relationship. A discontinuity 295 of termination in the vertical wall of the hood 204 provides clear space for a suction hose connection (not shown) leading to the hard bag (not shown) used with the suction nozzle 10. Between the combination of the vertical wall 193 of the main body or the discontinuity 204 and the angled corner lips 200 the main body 12, is provided in a pair of staggered, interleaved lips 206, 206. These lips extend up and curvilinearly from the rear ends of the angled corner lips 200 to form a lip portion 208, 208 curvilinear union with these. These lips then generally extend horizontally inward to form the horizontal portion 210, 210 of the lip. The edges 192, 192 of arched, curvilinear section, of the bell and overlapping edges 194, 194 are positioned to settle against a generally vertical edge 212 of the staggered lips 206, interspersed with the main body 12 while the interior surface 214, 214, contiguous and the roles 192, 192 of the bell 12 rest on the edge horizontal 216 of the bell of the main body F formed by the front lip 197 of the body, the side lips 198, 198 and the angled lip 200. The stepped, interleaved lip 216 is dimensioned so that an outer surface of the bell 218 forms 5 gently a continuation of the contiguous outer surface of the main body 12. This provides a complete, smooth exterior surface of the suction nozzle 10 with the main body and the bell that is attached gently to be coplanar on its upper termination sides. The opening 20 in the hood 14 is terminated by a continuous lip 220 that extends around its lips and the bottom that completely closes the area joined by this same opening. It should be clear from the foregoing, that the structure described clearly satisfies the objects of the invention set out at the beginning of the description. Now it must be obvious that they could be make many changes to the structure described that would still fall within its spirit and scope.

It is noted that in relation to this date, the best method known by the applicant to carry out the present invention, is the conventional one for the manufacture of the objects to which it refers. Having described the invention as above, the content of the following is claimed as property:

Claims (21)

1. A section nozzle, characterized in that it includes 5 a) an agitator chamber having an internal surface; b) at least one angled surface, internal to the inner surface of the agitator chamber to form an upper wall in an internal conduit; and 10 c) a removable conductive cover mounted within the agitator chamber and forming a second wall for the internal conduit.

2, The suction nozzle according to claim 1, characterized in that: a) the removable cover of the conduit is a cylical envelope.

3. The suction nozzle according to claim 2, characterized in that: a) the agitator chamber includes a second internal surface, corrugated on the surface of the agitator chamber forming an upper wall of the internal conduit; • b) the first and second surfaces extending along the front and rear sides of the agitator chamber; and c) the duct cover forms a second wall for both ducts.

4. The suction nozzle according to claim 1, characterized in that: a) the cover of the duct has a cut in relief adjacent to one of its ends; b) an opening for applying the suction nozzle is placed behind the cut; c) whereby dirt and large debris move through the mouthpiece and opening 15 application of the suction nozzle.

5. A suction nozzle, characterized in that it includes: a) a suction tunnel in the form of a cylical shell which generally forms an agitator chamber having internal and external cylical surfaces; b) at least one suction conduit extends axially along the inner cylical surface along one of the front and rear side of the 25 cylical surface; c) a main body having the tunnel in the form of a cylical envelope mounted on its front; d) a bell for the crown assembly on the main body; e) the bell that has the discontinuity that forms an opening; and f) at least a portion of the outer cylical surface of the tunnel in the form of a cylical envelope placed within the continuity and which can thus be seen by a user of the suction nozzle.

6. The suction nozzle according to claim 5, characterized in that: the suction duct is placed on the front side of the suction nozzle; the suction duct communicates backwards in the suction nozzle through a fluent cross duct; the cross-conduit is out in relation to the outer cylical surfaces of the tunnel in the form of a cylical shell; and at least a portion of the transversal cross duct and placed within the continuity of the bell and which can be seen in this way.

7. The suction nozzle according to claim 5, characterized in that: a) a piece of levers protruding from the discontinuity is placed and thus becomes flexible.

8. The suction nozzle according to claim 7, characterized in that: a) the outgoing lever includes an outer hook end.

9. A suction nozzle, characterized in that it includes: a) a main body that serves as a base for the suction nozzle; b) a reduced bell mounted in a crowned manner in the main body; c) a dividing line between the hook and the main body; d) at least a portion of one of the inner surface in the bell or the outer surface in the main body that is staggered in the dividing line; and e) the stepped portion forming an interleaving whereby the bell and the main body, in the stepped portion, provide a coplanar outer surface.

10. The exclusion nozzle according to claim 9, characterized in that: a) the bell and the main body have a stepped portion abutting next to a section of the dividing line.

11. The suction nozzle according to claim 10, characterized in that: a) the hood includes an upper edge, slightly curvilinear, continuous, upper. 15 12. A suction nozzle for a vacuum cleaner characterized in that it includes: a) a top housing for the suction nozzle; b) a non-stepped discontinuity in the upper housing near its front, whereby a constantly open view window is formed; and c) a housing of the agitator chamber, visible placed behind the discontinuity and extending transverse to this along and behind of only 25 a portion of the discontinuity.

F

13. A suction nozzle according to claim 12, characterized in that: a) a dirt transport conduit, visible to the chamber of agitators extending backward relative to it, is attached.

14. A suction nozzle according to claim 13, characterized in that: a) a manually operated height driving means can be seen and is accessible through the discontinuity.

15. A suction nozzle for a vacuum cleaner 15 characterized in that it includes: a) the upper housing for the suction nozzle; b) a non-stepped discontinuity in the upper housing near its front, whereby 20 forms a window with constantly open vision; c) a camera of. visible agitator placed below the discontinuity and extending along it; F d) the discontinuity that is rectangular naturalized, in this way a substantial portion of the stirring chamber can be seen therein.

16. A suction nozzle for a vacuum cleaner, characterized in that it includes: a) a top housing for the suction nozzle; b) a discontinuous discontinuity in the upper housing near its front and forming an open vision window; c) an agitator tunnel visible and placed below and within the discontinuity, and d) the non-step discontinuity that is in a non-confluent relationship with the suction flow of the suction nozzle.

17. The suction nozzle according to claim 3, characterized in that: a) the duct cover is a cylindrical sheath is similar to a cylindrical sheath.

18. The suction nozzle according to claim 17, characterized in that: a) the agitator chamber is also in a similar manner to a generally cylindrical envelope with an internal surface; b) the duct cover includes a top surface; and c) the upper surface of the duct cover fits tightly against the surface of the internal agitator chamber.

19. The suction nozzle according to claim 18, characterized: a) the suction nozzle includes a bottom plate; and b) the bottom plate forms one side of the bottom at each of the internal passages.

20. A suction nozzle, characterized in that it includes: a) at least one front conduit that extends along the front side of the suction nozzle; b) a conduit communicating confluently with a suction application hole of the nozzle; • c) a tunnel in the suction nozzle to form at least one agitator chamber; d) a cut in relief in the tunnel that communicates with the suction application hole. 5 e) where dirt and debris and large particles move through the relief cut and the suction application hole.

21. The nozzle according to claim 10, characterized in that: a) the tunnel is formed by: 1. A generally cylindrical depression extending axially in a main body of the suction nozzle; and 15 2. A duct cover, internal, removable to completely close at least one side of the front duct.