DE202012005866U1 - Guide strip for vacuum cleaner floor nozzle for the purposeful absorption of dirt on hard floor - Google Patents

Abstract

Vacuum cleaner floor nozzle for hard floor operation with a front brush strip (5) arranged transversely to the thrust direction in front of the suction nozzle (3) on the underside of the nozzle housing and a rear brush strip 8) arranged transversely to the thrust direction behind the suction nozzle (3), the brush strips (5; 8) have passages (7) in the thrust direction, characterized in that on the front brush strip (5) and on the rear brush strip (8) a number of V-shaped brush wedges (6: 6a; 9) preferably at regular intervals over the entire length the brush strips is arranged, and a passage (7) is arranged between each two adjacent brush wedges.

Description

The invention relates to a vacuum cleaner floor nozzle for hard floor operation according to the preamble of claim 1.

Such vacuum cleaner floor nozzles are state of the art. In particular, floor nozzles are known whose side facing the floor can be adjusted mechanically for hard floor operation or soft floor operation.

For the hard floor operation, the vacuum cleaner-Bödendüse is equipped with a arranged on the underside of the nozzle housing transversely to the thrust in front of the suction nozzle front brush strip and arranged transversely to the thrust behind the suction nozzle rear brush strip. The brush strips are covered with a variety of bristles, which rest flush in the suction on the floor and form a brush front, but have for the necessary suction partially rectangular rectangular meandering passages, the closed front of the brush bar about 60-70% and the sum the passages amount to about 30-40% of the brush strip front.

This brush shape has the disadvantage that the front brush front, which is provided with only a few passages, pushes the dirt forward during the forward movement in the pushing direction and during the backward movement the rear brush front also pushes the dirt in front of it and preferably only the dirt lying in front of the passages is sucked up and therefore multiple forward and backward thrusts are needed to largely absorb the dirt. Whereby it is also necessary to make the thrusts offset from each other to hit and sucked up dirt on repeated thrust.

The object of the present invention is to avoid this disadvantage.

This object is achieved according to the invention with a floor nozzle with the features of claim 1 uncomplicated.

In the following description, reference is made to the accompanying drawings, in which:

1 : Schematic and perspective a vacuum cleaner floor nozzle with a front, arranged in front of the suction nozzle and a rear, arranged behind the suction nozzle brush strip.

2 : Schematically a bottom view of the floor nozzle housing with a front and a rear brush strip.

3 Schematically and in perspective, a portion of a front brush strip with two V-shaped brush wedges.

4 : Schematically and in perspective, a section of a front one-piece with the brush wedges made of PU brush strip with two V-shaped PU brush wedges.

The floor nozzle according to the invention 1 is in a preferred embodiment with a front, arranged in front of the suction nozzle brush strip 5 and a rear, behind the suction nozzle 3 arranged brush strip 8th equipped, with the brush bristles on the brush strips 5 ; 8th to a number of V-shaped brush wedges 6 ; 9 , are preferably arranged at equal intervals over the entire length of the brush strips, and the tips 10 the V-shaped brush wedges in the respective thrust direction of the floor nozzle 1 show and make an angle of preferably 75 °, and between each two adjacent brush wedges a passage 7 is arranged, which depends on the tip angle of the brush wedges 6 ; 9 and the suction power of the vacuum cleaner may preferably be 50-100% of the width of a brush wedge.

The V-shaped brush wedges 9 the rear brush strip 8th are opposite the ones on the front brush 5 arranged brush wedges 6 around a brush wedge a is placed on gap so arranged that they passages 7 the front brush strip 5 cover.

The plurality of individual bristles of the brush wedges may consist of synthetic fibers or PU.

In a further embodiment, the brush strips 5 ; 8th one-piece PU with V-shaped PU brush wedges 6a produced. Since the brush strips are subject to wear, it is expedient to make the brush strips interchangeable and to provide appropriate receptacles in the floor nozzle housing.

The brush strips with V-shaped brush wedges and arranged between the brush wedges passages have the advantage that due to the V shape of the brush wedges pre-sliding of dirt in front of the respective brush strip is largely avoided and the dirt through the passages 7 into the floor nozzle and sucked, and by the offset of the on the rear brush bar 8th arranged brush wedges 9 opposite to the front brush guide 5 arranged brush wedges 6 ; only one forward thrust and one reverse thrust is necessary around a brush wedge width b to absorb the dirt. Apart from a protection of the floor, this also provides a substantial reduction in workload.

LIST OF REFERENCE NUMBERS

1

Vacuum cleaner floor nozzle

2

Floor nozzle housing

3

suction nozzle

4

suction pipe

5

front brush strip

6

front brush wedges

6a

PU Brush wedges

7

passages

8th

rear brush strip

9

rear brush wedges

10

Brush wedge tips

11

PU wedge tips

Claims (7)

Vacuum cleaner floor nozzle for hard floor operation with one on the underside of the nozzle housing transverse to the thrust direction in front of the suction nozzle ( 3 ) arranged front brush strip ( 5 ) and one transverse to the thrust behind the suction nozzle ( 3 ) arranged rear brush strip 8th ), wherein the brush strips ( 5 ; 8th ) in thrust direction passages ( 7 ), characterized in that on the front brush strip ( 5 ) and on the back brush strip ( 8th ) a number of V-shaped brush wedges ( 6 : 6a ; 9 ) is preferably arranged at uniform intervals over the entire length of the brush strips, and between each two adjacent brush wedges a passage ( 7 ) is arranged. Vacuum cleaner floor nozzle for hard floor operation according to claim 1, characterized in that the tips ( 10 ; 11 ) of the V-shaped brush wedges in the respective thrust direction of the floor nozzle ( 1 ) and the angle of the thrust direction of the floor nozzle ( 1 ) pointing peaks ( 10 ; 11 ) of the brush wedges ( 6 ; 6a ; 9 ;) 60 ° -90 °, preferably 75 °. Vacuum cleaner floor nozzle for hard floor operation according to claims 1 and 2, characterized in that the width (b) of a passage ( 7 ) between two adjacent brush wedges ( 6 ; 6a ; 9 ), depending on the tip angle of the brush wedges ( 6 ; 6a ; 9 ) in the thrust direction and the suction power of the vacuum cleaner, preferably between 50-100% of the width (a) of a brush wedge. Vacuum cleaner floor nozzle for hard floor operation according to claim 1, characterized in that the bristles of the brush wedges ( 6 ; 9 ) consist of a plastic fiber. Vacuum cleaner floor nozzle for hard floor operation according to claim 1, characterized in that the brush wedges ( 6a ) and the brush strips ( 5 ; 8th ) consist of PU and each form a one-piece unit. Vacuum cleaner floor nozzle for hard floor operation according to claims 1 and 3, characterized in that the brush wedges ( 9 ) of the rear brush strip ( 8th ) opposite the brush wedges ( 6 ; 6a ) of the front brush strip ( 5 ) are offset by a brush wedge width (a). Vacuum cleaner floor nozzle for hard floor operation according to claim 1, characterized in that the brush strips ( 5 ; 8th ) are interchangeable.

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