DE102005041805A1 - Staubsaugerbodendüse - Google Patents

Abstract

The invention relates to a Staubsaugerbodendüse (10) arranged in a sole (12) of the Staubsaugerbodendüse suction mouth (14) as an inlet for air and entrained by the air dirt particles, the suction mouth, based on a sliding movement, a front Saugmundkante (16) and a rear suction mouth edge (18). DOLLAR A In order to improve the sliding properties of the Staubsaugerbodendüse and the ability to pick up dust from carpets, it is provided that the edge radius of the front suction mouth edge (16) is smaller than the edge radius of the rear suction mouth edge (18).

Description

The The invention relates to a Staubsaugerbodendüse according to the preamble of Claim 1.

The various vacuum cleaner types according to the prior art can in principle be divided into two different types:
In so-called canister vacuum cleaners, the motor, blower, filter unit and electronic devices are arranged in a housing, which is usually mounted on rollers. An often telescopically adjustable in length suction pipe is connected at one end by means of a flexible suction hose to the housing or the blower of the vacuum cleaner and has at its other end to a floor nozzle, which comes into contact with the surface to be cleaned.

A second design form the so-called hand vacuum cleaner. In difference to the vacuum cleaners here the suction pipe is rigidly connected to the vacuum cleaner housing. Again, engine, blower, Electrics and filter unit housed in the housing. This points additionally on the opposite side of the intake manifold a in renewal handle mounted on the suction tube for handling.

through the floor nozzle will be that of engine and blower generated negative pressure applied to the surface to be cleaned. It acts It's usually either hard, smooth surfaces from floor coverings like parquet, PVC, stone etc. or to textile surfaces like about carpets, furniture upholstery or similar. The different texture of the surface makes partly opposing Requirements for the functionality of the floor nozzle.

It is desired the different floor nozzles a slight agility on the different surfaces too convey. This is a certain amount, especially on carpets Problem there, as these relate to the floor nozzle a large frictional resistance muster. This applies primarily to floor jets that do not improve the rollers lubricity but also for those with rollers, as the rollers direct friction of other sole sections the floor nozzle not with the surface avoid.

One Another goal in the construction of floor nozzles is an improvement the dust pickup.

It An object of the invention is to develop a generic vacuum cleaner floor nozzle to the effect that that reduces the pushing force of the floor nozzle and that the dust absorption capacity of the floor nozzle is improved.

These The object is achieved by the features of the independent claims.

advantageous embodiments of the invention are in the dependent claims specified.

The Invention builds on the generic Staubsaugerbodendüse characterized on that the edge radius of the front suction mouth edge is smaller as the edge radius of the rear suction mouth edge. In a forward-looking Sliding motion, also known as the forward stroke, opens the front Edge at the suction mouth the carpet or the carpet fibers. This allows for dust collection from deeper areas of the carpet. Because the edge radius of the front suction mouth edge is small chosen becomes, becomes the combing effect This edge improves, which ultimately leads to an improvement the dust pickup leads. The rear Saugmundkante slides during the forward stroke over the Carpet. The larger the radius The rear suction mouth is, the better the sliding properties and the lower the required pushing force.

The Invention is developed in a particularly advantageous manner thereby, that the edge radius of the front suction mouth edge between 0.5 mm and 1 mm and that the edge radius of the rear suction mouth edge between 1 mm and 3 mm. These edge radii are in the frame a practicable embodiment of the nozzle sole feasible, and they to lead to the desired ones Improvements in terms of dust absorption and pushing force.

The invention is further developed in an advantageous manner that during a sliding movement, the front suction mouth edge and the rear suction mouth are in contact with a surface to be cleaned surface and that during a pulling movement, the front suction mouth is in contact with the surface to be cleaned and the rear Saugmundkante with a surface to be cleaned is not in contact. During the backward pulling movement, the so-called backward stroke, generally only the front suction mouth edge is in contact with the surface, since the rear suction mouth edge is lifted from the carpet by pulling on the handle. So it is without any harm, the rear Saugmundkante a large edge radius to make available, since a combing action of the rear suction mouth edge is not provided anyway.

The Vacuum cleaner floor nozzle according to the invention can be formed so that it has a steel sole.

As well can the vacuum cleaner floor nozzle be designed in such a way that it has a plastic sole.

The said relative embodiments of the edges and said Radius areas can be realized with steel soles as well as plastic soles.

The Invention will now be described with reference to the accompanying drawings a particularly preferred embodiment exemplified.

there shows:

1 a perspective view of the underside of a Staubsaugerbodendüse invention.

In the 1 illustrated vacuum cleaner floor nozzle 10 has in the area of her sole 12 a suction mouth 14 , which serves as an inlet for air and airborne dirt particles. The vacuum cleaner floor nozzle 10 continues to have a bristle strip with regard to dirt pickup 20 and one or more thread lifts 22 on.

The suction mouth 14 is according to the invention with two Saugmundkanten 16 . 18 equipped, with the front suction mouth edge 16 a smaller edge radius than the rear suction mouth edge 18 Has. This has the consequence that on the forward stroke, due to the small edge radius, improved combing of a carpet takes place, so that increased dust absorption is made possible. The rear suction mouth edge 18 with low edge radius slides with little resistance over the carpet. During the backward stroke, the rear suction mouth edge becomes 18 lifted off the carpet, and the front Saugmundkante 16 slides due to the lower forces between floor nozzle compared to the forward stroke 10 and surface with sufficiently small resistance across the surface.

The in the above description, in the drawings, and in the claims disclosed features of the invention can both individually and also in any combination for the realization of the invention be essential.

10

Staubsaugerbodendüse

12

sole

14

saugmund

16

front suction mouth

18

rear suction mouth

20

bristle strip

22

thread lifting

Claims (5)

Vacuum cleaner floor nozzle ( 10 ) with one in a sole ( 12 ) of the Staubsaugerbodendüse arranged suction mouth ( 14 ) as an inlet for air and entrained by the air dirt particles, wherein the suction mouth, based on a sliding movement, a front Saugmundkante ( 16 ) and a rear suction mouth edge ( 18 ), characterized in that the edge radius of the front suction mouth edge ( 16 ) is smaller than the edge radius of the rear suction mouth edge ( 18 ). Vacuum cleaner nozzle according to claim 1, characterized in that the edge radius of the front suction mouth ( 16 ) is between 0.5 mm and 1 mm and that the edge radius of the rear suction mouth ( 18 ) is between 1 mm and 3 mm. Staubsaugerbodendüse according to claim 1 or 2, characterized in that during a sliding movement, the front Saugmundkante ( 16 ) and the rear suction mouth edge ( 18 ) are in contact with a surface to be cleaned, and that a pulling movement, the front Saugmundkante ( 16 ) is in contact with the surface to be cleaned and the rear suction mouth ( 18 ) is not in contact with a surface to be cleaned. Staubsaugerbodendüse according to one of the preceding claims, characterized in that she has a steel sole. Staubsaugerbodendüse according to one of the preceding claims, characterized in that she has a plastic sole.