RU2391038C2 - Vacuum cleaner nozzles for floor cleaning - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: floor nozzle is designed for vacuum cleaner and is used for floor cleaning. The floor nozzle contains widening suction channel in the suction hole, front edge going perpendicularly to the main direction of the main movement and at least one first front floor roller and one second front floor roller which are placed at different distances from the front edge. The first front floor roller is installed before suction hole and the second front roller is installed behind suction hole. Suction hole is placed near the first front roller at a longer distance from the front edge than from the second front floor roller. Suction hole has bent form or it has hollow with first front floor roller for to provide different mentioned distances. Additional rear floor rollers which are placed at the same distance from the front edge are placed behind first and second front floor rollers.

EFFECT: removal of knock on the joints, when the vacuum cleaner nozzle is moved and improvement of it's working capacity at a frontal direction.

5 cl, 3 dwg

Description

Technical field

The invention relates to a floor nozzle for a vacuum cleaner in accordance with the restrictive part of paragraph 1 of the claims.

State of the art

In accordance with the prior art, various types of vacuum cleaners by their design can be divided into two groups:

In the so-called floor-mounted vacuum cleaners in the housing, mainly supported by wheels, are located the engine, fan, filter unit and electronic equipment. The suction pipe, often telescopic, with a variable length, is connected at one end with a flexible suction hose to the body and, accordingly, with the fan of the floor vacuum cleaner, and at the other end has a floor nozzle that contacts the surface being cleaned.

The second group of structures is formed by the so-called manual vacuum cleaners. In them, unlike floor vacuum cleaners, the suction pipe is rigidly connected to the body of the vacuum cleaner. The engine, fan, electrics and filter unit are also housed in the housing. Additionally, for the convenience of handling the vacuum cleaner, there is a handle on the side opposite to the connection point of the suction pipe that extends the suction pipe.

Using the floor nozzle, the vacuum produced by the engine and fan acts on the surfaces to be cleaned. As such, we mean, as a rule, either hard, smooth surfaces of floor coverings, such as parquet, PVC, stone, etc., or textile surfaces, such as, for example, carpets, furniture upholstery, etc. Moreover, due to different surface qualities, partially opposite requirements are imposed on the functions of the floor nozzle.

One of these requirements is to ensure that the floor nozzle of the vacuum cleaner glides as easily as possible over appropriate surfaces. This also applies to overcoming the boundaries of surface areas, for example, in the area of door sills. To improve the quality of sliding, several rollers are installed in the area of the sole of the floor of the vacuum nozzle facing the floor, while two front floor rollers are provided at the same distance from the front edge of the floor nozzle. If you move such a floor nozzle of the vacuum cleaner perpendicular to the edging, the rollers come into contact with this edging essentially simultaneously; as a result, the floor nozzle overcomes the edging sharply, which requires undesirable force and leads to an undesirable knock, especially in the case of hard surfaces. The same knock, and for the same reasons, is noted when it is necessary to overcome recesses on the surface, for example, in the case of profiled synthetic floor coverings, since there are also frequent cases where rollers simultaneously fall into the recesses, in order to then again exit the recesses at the same time.

In order to avoid this known phenomenon, knocking, it was already proposed to arrange the rollers at different distances from the leading edge. However, this solution, successful in the sense of eliminating the described disadvantages, leads to the fact that between the suction hole and the front edge of the nozzle of the vacuum cleaner there must be a relatively large area for installing the rollers. This has its drawbacks regarding the suction properties of the vacuum cleaner in the frontal direction, because, for example, when the front edge abuts the plinth, the distance from the suction hole to the extreme bar is large.

Disclosure of invention

The basis of the invention is the task of developing such a floor nozzle for a vacuum cleaner, which eliminates the problem of knocking at the joints and at the same time provides good working properties in the frontal direction.

This problem is solved by a device with the features of an independent claim.

Preferred embodiments of the invention are presented in the dependent claims.

The invention is based on a conventional floor nozzle for a vacuum cleaner, given that the first floor roller is installed in front of the suction port and the second floor roller is behind the suction port. Thus, the preferred concept, providing for various distances from the floor rollers to the front edge of the floor nozzle, is combined with space saving when placing the rollers. This saving in space relates in particular to the area necessary for placing the rollers in front of the suction port. Since the second roller is installed behind the suction port, the area in front of the suction port is very small.

In addition, it is provided that in the region of the first floor roller, the distance from the suction hole to the leading edge is greater than in the region of the second floor roller. A greater distance to the leading edge in the region of the first roller serves to accommodate the first roller. Since this larger distance is not required in the region of the second roller, the suction hole in the region of the second roller can be brought closer to the front edge in order to improve the working properties in the frontal direction.

This is realized, for example, due to the fact that the suction port for realizing various distances has a curved shape.

It is also conceivable that, to ensure different distances, the suction opening has a recess in which a first floor roller is mounted.

The invention is further improved in a particularly preferred manner in that further floor rollers are located at the same distance from the leading edge behind the first and second floor rollers. In particular, taking into account the rear rollers, it is advisable to arrange them at the same distance to the leading edge, since this improves the sliding quality of the floor nozzle of the vacuum cleaner. Since the rear rollers are made much larger than the front rollers, in any case they easily move along uneven floors.

List of drawings

Below the invention is illustrated by the example of the most preferred embodiment based on the accompanying drawings.

They show:

figure 1: a perspective view of a floor nozzle for a vacuum cleaner according to the invention, a view of its upper side;

figure 2: axonometric image of the floor nozzles for a vacuum cleaner according to the invention, view of its lower side;

figure 3: horizontal projection of the lower side of the floor nozzle for a vacuum cleaner according to the invention.

The implementation of the invention

Figure 1 shows the floor nozzle 10 of a vacuum cleaner according to the invention in a perspective view, view from the upper side. Figure 2 shows the floor nozzle 10 of a vacuum cleaner according to the invention in a perspective view, view from the bottom side. Figure 3 shows a horizontal projection of the lower side of the floor nozzle for a vacuum cleaner according to the invention. The floor nozzle 10 of the vacuum cleaner has a leading edge 16 extending perpendicular to the main direction of movement of the floor nozzle 10 of the vacuum cleaner. Control elements 26, 28 are installed on the upper side of the floor nozzle 10 of the vacuum cleaner, which serve, for example, to raise and lower the brush rail 28. Using the nozzle 30 of the suction pipe, the floor nozzle 10 of the vacuum cleaner is connected to the suction pipe of the vacuum cleaner. The suction pipe fitting 30 exits into the suction channel 12 provided in the floor nozzle 10 of the vacuum cleaner, which in turn ends with an expanding suction hole 14. Four floor rollers are installed on the floor nozzle 10 of the vacuum cleaner, namely two front floor rollers 18, 20 and two rear floor rollers 22, 24. The rear floor rollers 22, 24 are at the same distance from the front edge 16 of the floor nozzle 10 of the vacuum cleaner. The front floor rollers 18, 20, in contrast, are at different distances from the leading edge 16. The first floor roller 18 is located at a smaller distance from the front edge 16 than the second floor roller 20. In order to make the area required to accommodate the floor rollers 18 , 20 in front of the suction hole 14 as small as possible, only the first floor roller 18 is installed in front of the suction hole 14. The second floor roller 20 is located behind the suction hole 14. To still place the second floor roller 20 at an at a relatively small distance from the leading edge 16, taking into account the sliding quality of the floor nozzle 10 of the vacuum cleaner, the suction hole 14 is made curved, which means that in the region of the second floor roller 20 it is at a smaller distance from the leading edge 16. than in the region of the first floor roller 18 In addition, in order to be able, in order to ensure working properties in the frontal direction, to position the suction channel as close to the front edge 16 as possible, in the area of the first floor roller 16 there is further compression of the suction port 14, which is also referred to as a recess or partial removal of the suction port.

The features of the invention given in the foregoing description, in the drawings, as well as in the claims, may be essential for carrying out the invention both individually and in any combination.

Claims (5)

1. Floor nozzle (10) of the vacuum cleaner with a suction channel (12) expanding in the suction hole (14), with a leading edge extending perpendicular to the main direction of the main movement, and at least one first front floor roller (18) and one second front floor roller (20) located at different distances from the leading edge, characterized in that the first front floor roller (18) is installed in front of the suction hole (14), and the second front floor roller (20) is installed behind the suction hole (14). 2. The floor nozzle (10) of the vacuum cleaner according to claim 1, characterized in that in the vicinity of the first front floor roller (18), the suction hole is at a greater distance from the front edge (16) than near the second front floor roller. 3. The floor nozzle (10) of the vacuum cleaner according to claim 2, characterized in that the suction opening (14) has a curved shape to provide these various distances. 4. The floor nozzle (10) of the vacuum cleaner according to claim 2, characterized in that for providing the indicated various distances, the suction hole (14) has a recess in which the first front floor roller (18) is installed. 5. The floor nozzle (10) of the vacuum cleaner according to one of the preceding paragraphs, characterized in that behind the first and second front floor rollers (18, 20) are installed additional rear floor rollers (22, 24), which are at the same distance from the front edge ( 16).

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