FR2780874A3 - Vacuum cleaner suction head with rear wheels and pivoting brush section - Google Patents

Abstract

The brush in the swivelling head is carried on a mounting plate which may be vertically moved and a slit extends across the full width of the suction head. A wheeled rear section has an angled suction tube connecting to the remote vacuum cleaner body and the brush section is pivoted so that the sole plate is in contact with the floor at all times. The suction head of a remote vacuum cleaner is connected by an angled tube (5) to a wheeled (2) rear section (4) on which is pivoted (3) the front section (6) carrying a brush holder which is moveable vertically through a slit (11) by a control (8). A sole plate (9) contains a suction slot (13) and duct to the suction tube opening.

Description

The invention relates to a floor nozzle for a dust vacuum cleaner.

  floor nozzle for a vacuum cleaner, comprising a nozzle body which contains an air guide channel and at the rear end of which is mounted a system of rollers, a tilting rotary joint formed by a section of duct mounted to tilt in the air guide channel and a bent tube mounted rotating in the section of duct, a suction head connected with the possibility of tilting to the nozzle body, comprising an upper part, a brush holder plate movable in the vertical direction at inside the upper part, an actuation button for the brush holder plate and a sliding sole fixed to the upper part, the sliding sole having an opening adapted to the air guide channel as an orifice suction and brush blades before and

  rear or an annular brush being linked to the brush holder plate, brush-

  ses which, by moving the brush holder plate, can be removed

  and retracted through a slot in the suction head facing the ground.

  A floor nozzle with the characteristics described is

  known from document DE-A-28 46 847. The sliding sole available

  located on the underside of the relatively large suction head

  carries two essentially parallel channels, open in the direction of the ground, which connect to the suction port. The anterior channel, seen in the suction direction, extends over the entire length of the suction head to the edges thereof and is open at its ends so that air

  can enter the channel at this level. The rear channel, seen in the direc-

  tion, is closed by an edge at its ends so that air enters the channel passing over this edge. The nozzle known from document DE-A-28 46 847 is now used in practice. All

  floor nozzles with a structure such as that described in the introduction

  duction, insofar as they are provided with a retractable annular brush comprise a sliding sole with two substantially channels

  parallel, spaced from each other.

  Document DE-A-42 43 244 discloses a floor nozzle

  of a different type which has a suction head guided on rollers-

  your. A narrow plate with a channel shaped bowl is mounted low-

  in the suction head. A sealing blade which is constantly

  lying in contact with the ground is arranged behind the plate seen in the

  suction direction. The floor nozzle does not have a blade -

  brush can be removed and retracted using a mechanism

  mande; it is used without switching both on smooth floors and on

carpet floors.

  The object of the present invention is, in a nozzle having a structure as described in the introduction, having a brush holder plate with brush blades or a lowerable ring brush

  and liftable using an actuation button, to improve the characteristics

suction characteristics.

  To achieve this objective, the invention provides for providing the sliding sole with a single channel, open towards the ground, which extends over the entire length of the suction head, up to the edges of the

  upper part and is limited by edges of the suction opening. Com-

  adorned with known nozzles which are provided with a brush holder plate with

  brush blades or an annular brush, the suction head can pre-

  feel significantly smaller dimensions. These characteristics combined with the rear wheel system, the articulation

  swivel-tilt back and mobility between body and vacuum head

  ration, provide good guidance on the floor both when cleaning carpet floors with the ring brush retracted and when

  cleaning of smooth floors with the brush removed. Aspiration is considered

  significantly improved, compared to larger squeegees depending on the condition of the

  technical, provided with a slip sole with two suction channels

parallel ration.

  According to a preferred embodiment of the invention, the distance between the mutually parallel front and rear brush sections of the

  ring brush is 65 mmin maximum.

  In another arrangement, the invention provides that the width of the channel arranged in the sliding sole increases in the direction of

  the suction port and is connected freeboard with said suction port.

  ration. The front and rear brush sections of the ring brush may

  can be arranged parallel to each other at the distance indicated above

demment.

  According to an additional characteristic of the invention, the annular brush, in the extended position, is essentially adjacent without

  space of the edges of the suction opening.

  The invention is described in more detail in the following with the aid of an exemplary embodiment shown in the drawings. The drawings show: FIG. 1, the side view of a floor nozzle according to the invention for a vacuum cleaner, FIG. 2, a top view of the slide sole of the nozzle

  for floors shown in Figure 1.

  The basic structure of the floor nozzle shown in the figures

  res, comprises a nozzle body 1 which has an air guide channel and at the rear end of which is disposed a system of rollers 2, a rotary-tilting articulation 3 formed of a section of conduit 4 mounted tilting in the air guide channel and a bent tube 5 mounted to rotate in the duct section 4, as well as a suction head 6 linked to the nozzle body 1 with the possibility of tilting. The suction head 6 comprises an upper part 7, a brush holder plate movable in the vertical direction inside the upper part, a button

  actuation 8 of the brush holder plate as well as a sliding sole-

  ment 9 fixed to the upper part 7. The sliding sole 9 comprises

  an opening adapted to the air guide channel as a suction orifice

  tion 10. A peripheral brush is linked to the brush holder plate, which brush, by a displacement of the brush holder plate, can be taken out or re-entered through a slot 11 arranged on the bottom side in the suction head 6. In the exemplary embodiment and in accordance with an embodiment

  preferred of the invention, a slot 11 is provided between the sliding sole-

  ment 9 and the upper part of the body, for the purpose of getting in and out of

brushes 12.

  It can be seen in FIG. 2 that the sliding sole 9 has a single channel 13, open on the ground side, which extends over the entire length of the suction head 6, up to the edges of the upper part 7. The width of the channel arranged in the sliding sole can, as shown in FIG. 2, grow in the direction of the suction orifice 10. In all cases the width of the channel 13 is not greater than that of the orifice d aspiration

  10 and the channel 13 is connected freeboard with the suction port 10.

Claims (4)

  1. Floor nozzle for a vacuum cleaner, comprising a nozzle body (1) which contains an air guide channel and at the rear end of which is mounted a system of rollers (2), a rotary / tilting joint (3) formed of a section of duct 4 mounted tilting in the air guide channel and of a bent tube mounted rotating in the section of duct (4), a suction head (6) linked so as to ability to tip over to the body of   crevice tool (1), comprising an upper part (7), a carrier plate   brush movable in the vertical direction inside the upper part, an actuation button (8) of the brush holder plate and a sliding sole (9) fixed to the upper part, the sliding sole (9) comprising an opening adapted to the air guide channel, as a suction orifice (10), and front and rear brush blades or an annular brush being linked to the brush holder plate, brushes which, by a movement of the brush holder plate, can be taken out and returned through a slot (11) in the suction head (6) turned towards the ground, characterized in that the sliding sole (9) has a channel ( 13) single open towards the ground, which extends over the entire length of the suction head (6), up to the edges of the upper part (7) and is   limited by edges of the suction port.   2. Floor nozzle according to claim 1, characterized in that the distance between the front and rear brush blades, mutually parallel, is 65 mm maximum.   3. Floor nozzle according to claim 1 or 2, characterized in that the width of the channel (13) arranged in the sliding sole   (9) grows in the direction of the suction opening (10) and that said channel narrows   freeboard rope with the suction opening (10).   4. Floor nozzle according to any one of claims 1 to   3, characterized in that the outgoing annular brush is close to the edges   tes from the suction port, the distance of the brush from the port of suction being negligible.