DE202011051495U1 - Nozzle for vacuum cleaner with internal intake duct - Google Patents

Abstract

Nozzle for vacuum cleaners with an internal deformable suction hose (100) made of plastic and individual parts made of plastic or steel, intended for use on all types of vacuum cleaners for household use or vacuum cleaner systems, which have a rotating axis (136, 144) running around two axes parallel to the floor Single joint or double joint and in the middle a hose (120), which is rigidly connected on the one hand to the central connection (116) of the suction slot (112) and on the other hand to the rigid tube (132) of the upper main joint (142), in which a connection (146) is arranged with the possibility of pivoting / rotating according to (150), but without allowing the extension possibility inserted in between can also be an axially holding ring (148), with continuity through the hose (120) without the possibility of any air escape is made in the connections, so that the entire suction power generated by the vacuum cleaner reaches the floor achieved, wherein the inventive nozzle (100) is provided with all accessories and technical functions that also ...

Description

The subject of the present utility model belongs to the field of household cleaning aids, in particular in the field of aids that are used with normal vacuum cleaners.

At present, vacuum cleaner nozzles designed for cleaning hard floors in households and carpets have single or double hinge pivoting devices to control the inclination of the rigid pipe held and guided by the operator to the nozzle that is located supported on the floor surface to be cleaned, and sucks from hard and carpeted floors air, dust and dirt over certain areas and cross sections, adapt.

These joints, whether they are pivotable once or twice, represent in a simple manner hingedly connected channel elements which form a suction channel consisting of two or three successive and mutually pivotable elements in such a way that a moderate and approximately sealing effect is given on the circumference, which exclusively by the precision of the connection of the two or three channel elements is dependent, the precision is quite inaccurate due to the nature of the plastic materials from which they are made. These characteristics of the design lead to a significant loss of air flow and, in particular, to vacuum generated by the vacuum cleaner, which is obviously accompanied by pressure drop or loss of overall efficiency and therefore in no way corresponds to the current trend towards energy saving.

In particular, the here presented, similar to the already on the market looking looking nozzle has a technique and a system for guiding the Ansaugluftstroms through them with high efficiency and with a specific deformable intake channel, as they have not been used in similar devices yet.

The present utility model is a nozzle for cleaning hard floors of all kinds, be they ceramic or marble tiles or parquet made of wood or plastic strips, where it is connected like all such nozzles to a metal or plastic pipe socket, which has a rigid channel between them Nozzle and the hose, which is connected directly to the vacuum cleaner or a central Hausstaubsauganlage represents.

The nozzle according to the invention is not only provided with all the devices of the best available nozzles on the market, but uniquely has a deformable channel firmly connected on the one hand to the suction pipe and on the other hand to the connection of the elongate slot or gap located on the wide base of this nozzle This deformable channel prevents any leakage of intake air through the normal hinged connections.

The nozzle disclosed herein, as described, has all the best devices for optimizing the various types of cleaning or suction for which it is intended. It is equipped with a practical double joint system to adapt the nozzle plane to the axis of the rigid pipe or neck with support rollers for this joint.

It is further provided with a metallic profiled lower suction surface with side opening slots for suction and day rolls for this suction surface, which are able to prevent any grinding of the suction surface on the floor to be cleaned provided. It is further provided with fixed and movable sealing lips for insulating the suction area or the slots as well as with an actuating lever with two fixed positions for adjusting said sealing lips depending on the type of surface to be suctioned, d. H. Hard or carpeted floor.

Finally, the nozzle according to the invention, in addition to all of these devices, which are fairly common in some or all of the other offers on the market, additionally according to the solution described herein further includes the connection with a deformable tube from the first hinge to the suction tube and the central connection of the transverse suction bore or slot of the nozzle. This deformable hose of invariable cross-section, which is connected at its ends in a tight and tight manner, ensures a secure continuity between the dust-containing air intake area and the rigid tube of the vacuum cleaner, also referred to as a neck, and without any loss of charge by axial or radial gaps operates in joint zones without secure sealing and thus leads to an efficiency of the absorption circuit over 50% of those normal nozzles and channels with joints in the intake. In fact, in this system, there are no significant changes in the intake area between the bottom supported nozzle, the port, the deformable port and the main intake manifold while reducing noise and improving efficiency over other similar commercial equipment.

Brief description of the figures:

1 represents a plan view of the nozzle in its entirety.

2 turns off the cut AA 1 and the hose between the nozzle and intake pipe of the vacuum cleaner according to the present invention.

3 shows a view of the nozzle without the connection element between the two joints, but it represents the hose.

4 turns off the cut BB 3 in which the internal connections and the special features of the nozzle according to the invention can be seen.

5 essentially represents the cross section CC, in which the lever for switching the sealing lips from the position for hard in that of carpet is recognizable.

6 shows a bottom view of the support surface of the nozzle.

In the following description of the preferred embodiment of the nozzle according to the invention, the reference numerals used in the accompanying drawings are intended to have the meanings as described below.

LIST OF REFERENCE NUMBERS

100

Nozzle for vacuum cleaners in total, made of plastics and composed of various functional elements, provided with double joint, with sealing lips and front brushes vertically adjustable for use on hard or carpeted floors, with two pairs of rollers, with suction bore or slot, but in particular provided with the deformable hose as a connection between the intake slot and the connecting tube to the vacuum cleaner, this channel having no scattered or concentrated losses or load losses.

110

Corpus or support structure of the nozzle, which represents the structural element made of plastic.

112

Transverse channel or eyelet or slot for suction with central connection to the intake of the vacuum cleaner, it is a molded part made of sheet metal but also made of plastic and he adheres glued a pair of small sliding feet against abrasion as any other nozzle also.

114

Display arrows for the suction direction or the air flow towards the main pipe or main intake duct.

116

Connection or connection channel between 112 and the deformable neck 120 , this is the main object of the present invention.

118

Pair of rollers on the support surface of the nozzle to avoid friction at the bottom between the bottom of the nozzle and the floor to be extracted.

120

Deformable connecting piece between the upper channel of the joint 132 around the second pivot and the connecting port 116 from 112 , This is the most important feature of the present invention and is provided as a deformable hose provided with metallic rings or spirals to reinforce its outer surface possibly deforming towards the center due to the inside negative pressure. Its cross-section for air passage is the same 116 and 132 - 146 and also the connection 112 so that no air turbulence occurs in these different flow ranges, resulting in higher efficiency and lower losses.

122

Example illustrated clamp for attachment of 120 at 116 ,

124

Superior fiber brush on the front side of 100 as is known from virtually all today available on the market nozzles for vacuum cleaners. It can with the schematically illustrated pedal mechanism ( 160 ) are lifted and lowered relative to the soil to be sucked off.

126

Rear seal whose operation is similar 124 is. She can communicate with you at the same time 124 can raise and lower, but can also be fixed.

128

Down below U-profile, the on 110 is attached and used for stiffening and as a carrier of rolls 118 serves.

130

At 110 attached top cover or fairing.

132

Rigid pipe from the upper joint to the intake passage, it is the upper end of 120 connected.

134

Middle pivot support between the body of the nozzle 110 and the upper joint 142 ,

136

Lower pivot axis of the carrier 134 (first pivot point).

138

Pivoting direction about the first axis 136 ,

140

Pivoting direction about the axis 144 the roles.

142

Upper pivot around the second center 144

144

Second pivot point and axis of the rear rollers 154 ,

146

Rigid outlet on the second joint 142

148

Axial holding ring for turning and pivoting of 146 ,

150

Pivoting direction of 146 ,

152

Pipe stump of 142 , carries in its interior 148 and 146 ,

154

Rolls on the second joint.

160

Pedal for the operation of the elastic lever mechanisms for the adjustment of 124 and optionally from 126 ,

162

Operating rod for the by 160 operated bistable mechanism.

164

Pair of non-adhesive glide feet from 112 , next to the hole 112 in center position and at the place of maximum suction power.

166

Display arrows for raising and lowering of 124 and 126 ,

In the adjoining panel 1/4 is a nozzle for vacuum cleaners 100 in the functional plan views completely as in 1 or in cross-section along the transverse median plane AA as in FIG 2 shown.

These 1 and 2 show a solution for a nozzle according to the present invention. From them, the operation of the one with the channel can be 116 and on the other hand with the channel 132 connected deformable tube 120 understand.

Therefore, the channel adapts 120 by pivoting the joint 142 around the axis 144 to the successive positions of the nozzle 100 by the inclinations of 146 , thereby increasing the continuity of the flow of air in the direction 114 certainly without lateral air leaks or leaks at the various joints of the joints, as it is in contrast found today in virtually all cases, is maintained. As already shown, there is this flexible connection 120 and the subsequent sockets and ports, unlike the structures currently on the market, no changes in the cross-section of the air duct of the intake air as it flows through the nozzle. This results in less turbulence, greater peace and, above all, lower losses.

Furthermore go from these figures, the axes of the fulcrums 144 and 136 of the joint, the suction hole in cross section 112 , the movable front brush 124 and the rear sealing lip 126 and the mounts for non-abrasive shifting by means of the rollers 118 on 128 and the rear wheels 154 of the second joint. Thus, the nozzle according to the invention shows in operation all the functions of the best nozzles for vacuum cleaners, but with a 50% higher efficiency than those of the prior art, as at any of the joints or joints, these are simple or double, losses occur.

The following 3 and 4 Finally, illustrate the preferred embodiment in accordance with the present invention for the deformable connection 120 between the nozzle and the according to 140 swivel joint 142 the position of the first joint axis 136 This can be recognized very well by the absence of the element 134 of the intermediate joint ( 1 ). In addition, the neck 146 ACCORDING 150 can be turned, is the perfect freedom of movement of 100 concerning the pipe or neck of the vacuum cleaner.

5 adds regarding the deformable neck 120 nothing new added, but shows especially in cross section CC the pedal or the lever for adjusting 160 the front brush 124 according to 166 , in some cases, too 126 the vertical movement of 124 consequences.

These adjustments result in a better effect when vacuuming hard or carpeted floors.

Finally, the shows 6 a soffit with the hole 112 or the slot with the central suction port, which in connection with 120 connected, as well as the roles 118 on the profile 128 and the roles 154 at the joint 142 ,

As a consequence, the nozzle according to the invention offers 100 as already shown several times all the features and functions of the best nozzles for vacuum cleaners for carpet or hard floors and differs from these by the connection 120 , without loss or leakage, while increasing the efficiency and without sacrificing any function that is also present on analog devices.

Claims (9)

Nozzle for vacuum cleaner with internally deformable suction hose ( 100 ) of plastics and parts of plastic or steel, intended for use on all types of domestic vacuum cleaners or vacuum cleaners fitted with two axes parallel to the floor ( 136 . 144 ) rotating single joint or double joint and in the middle a hose ( 120 ), on the one hand rigidly to the central terminal ( 116 ) of the intake slot ( 112 ) and on the other hand to the rigid tube ( 132 ) of the upper main joint ( 142 ), in which a connection ( 146 ) with the possibility of pivoting / turning according to ( 150 ), without, however, allowing the intervening Extension possibility also an axially holding ring ( 148 ), whereby through the hose ( 120 Continuity is made without the possibility of any air leakage in the ports, so that the total suction power generated by the vacuum cleaner reaches the bottom, with the nozzle according to the invention ( 100 ) is provided with all the accessories and technical functions that are also normal commercial nozzles, such as movable or fixed front brush ( 124 ), movable or fixed rear seal ( 126 ), Pedal ( 160 ) and lifting mechanism, double pair of rollers on both joints ( 136 . 144 ) and rotation ( 150 ). Jet ( 100 ) according to protection claim 1, which between the intake slot ( 112 ) and the articulated connection ( 132 ) an intake duct ( 120 ) which is designed as a deformable hose with rigid, with spirals or metal rings reinforced outer skin to maintain this passage cross-section for air and dust, so that it does not contract due to the negative pressure generated by the vacuum cleaner inside this channel. Jet ( 100 ) according to one of the preceding claims, wherein the suction slot ( 112 ) with a special, with a hose clamp or a clamping ring without any leakage or loss of charge due to this connection attachable nozzle ( 116 ) connected to the hose ( 120 ) is connected, is connected. Jet ( 100 ) according to one of the preceding claims, which comprises a rigid connection of the deformable tube ( 120 ) on the neck ( 132 ) of the swivel joint ( 142 ) with the purpose of reducing losses in the intake flow in the areas of adaptation of the nozzle to the working positions by means of nozzles or rigid tube which is connected to the end channel ( 146 ) of the joint is connected, to prevent. Jet ( 100 ) according to protection Claim 4, in which the transverse channels ( 112 ), the connection channel ( 116 ), the deformable neck ( 120 ) and the following connections ( 132 ) and ( 146 ) of the connection to the vacuum cleaner have a nearly constant cross-section, so that the efficiency is maximum or no additional losses and less noise. Jet ( 100 ) according to one of the preceding claims, which is an elongate, vertical fixed or individually or together with the sealing lip ( 126 ) movable ( 166 ), through the pedal ( 160 ) with bistable mechanism with metallic or synthetic resin existing spring operated nozzle ( 124 ) with the function of cleaning carpeting. Jet ( 100 ) according to one of the preceding claims, comprising one or two pairs of carrying rollers ( 118 ) and ( 154 ), of which one as the primary pivot axis ( 140 ) with respect to the bearing surface to the surface of the entire nozzle. Jet ( 100 ) according to one of the preceding claims, which can be pivoted about its own axis ( 150 ) End cap ( 146 ), which comes with a ring ( 148 ) between the female ( 152 ) and male ( 146 ) Is arranged part of the nozzle is provided. Jet ( 100 ) according to one of the preceding claims, which has a pivot axis corresponding to the axis ( 144 ) of the main rollers of the overall system and the possibility of a second pivot axis ( 136 ) in the middle of the short side of the nozzle sole.

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