CN210727648U

CN210727648U - Cleaning head and dust collector comprising same

Info

Publication number: CN210727648U
Application number: CN201921179654.XU
Authority: CN
Inventors: 安东尼·马蒂
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2018-08-03
Filing date: 2019-07-25
Publication date: 2020-06-12
Anticipated expiration: 2029-07-25
Also published as: FR3084574B1; ES2875398T3; EP3603473B1; FR3084574A1; CN110786780A; EP3603473A1

Abstract

The utility model relates to a cleaner head (2) and including its dust catcher, cleaner head (2) include: -a housing (3), -a drive motor (19), -a reducer (21) rotatably coupled to the drive motor (19), and-a rotating brush (13), the rotating brush (13) being configured to be driven in rotation by the drive motor (19) through the reducer (21), the rotating brush (13) being removably mounted in the housing (3) of the cleaning head. The reducer is housed in the rotating brush (13) and is fixed on the rotating brush (13) so that it remains integral with the rotating brush (13) when the rotating brush (13) is removed from the housing (3) of the cleaning head (2).

Description

Cleaning head and dust collector comprising same

Technical Field

The present invention relates to the field of vacuum cleaners equipped with a cleaning head, also called vacuum cleaner nozzle, allowing to suck in dust and small-sized waste present on the surface.

Background

Vacuum cleaners equipped with a cleaning head are well known in the market which allow cleaning of surfaces by suction to evacuate dust and small particle size waste that remains on the surface. The surface to be cleaned may be, for example, a tile floor, a laminate, a carpet or a carpet.

The cleaning head conventionally comprises a connecting sleeve and a housing equipped with a lower surface positioned in an adjacent manner on a surface to be cleaned and a suction chamber communicating with the connecting sleeve, the suction chamber comprising a suction opening which opens onto the lower surface of the housing and accommodates a rotating brush located opposite the suction opening.

In order to improve in particular the dust removal efficiency of such cleaning heads on the carpet, it is known to provide a system for driving the rotation of the rotating brush inside the rotating brush. In fact, this configuration of the cleaning head allows to dispense with the presence of a belt and pinion, so as to couple the rotation of the drive motor and of the rotating brush.

However, mounting a cleaning head equipped with such a rotary drive system can be complex and cumbersome, since such arrangement of the rotary drive system requires the presence of a first rolling bearing and a second rolling bearing, respectively, provided at each end of the rotary brush to ensure proper positioning and centering of the rotary brush relative to the drive motor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming all or a portion of these disadvantages.

Based on the technical problem of the utility model lie in providing a reliable and economic cleaning head of structure very much, guarantee simultaneously that the suction performance of cleaning head is improved and the installation is easy.

To this end, the present invention relates to a cleaner head for a vacuum cleaner, comprising: a housing, a drive motor, a reducer rotatably coupled to the drive motor, and a rotating brush configured to be driven in rotation by the drive motor through the reducer, the rotating brush being removably mounted in the housing of the cleaning head, characterized in that the reducer is housed in the rotating brush and is fixed to the rotating brush such that the reducer remains integral with the rotating brush when the rotating brush is removed from the housing of the cleaning head.

This configuration of the cleaning head allows to divide the drive motor and the reducer into two separate parts, which allows to greatly simplify the mounting of the cleaning head, since it is possible to dispense with the presence of a rolling bearing at the end of the rotating brush located on one side of the drive motor. In fact, the positioning and centering of the rotating brush with respect to the drive motor can be ensured, for example, on the one hand by a rolling bearing located at the end of the rotating brush opposite the drive motor and, on the other hand, directly by the reducer. Thus, the speed reducer enables the rotating brush to be centered in an offset manner with respect to the drive motor.

Thus, the cleaning head according to the invention allows centering the rotating brush with respect to the drive motor using a single rolling bearing, which reduces the weight of the cleaning head and shortens the installation time of the cleaning head.

Furthermore, this configuration of the cleaning head allows to bring the drive motor close to one end of the rotating brush and thus ensures a simple and optimal cooling of the drive motor and thus an improved suction performance at the cleaning head.

The cleaning head can also have one or more of the following features used alone or in combination.

According to an embodiment of the invention, the rotatable brush comprises a first end portion and a second end portion, the first end portion and the second end portion being located near a first side edge and a second side edge of the housing of the cleaning head, respectively.

According to an embodiment of the present invention, the drive motor and the reduction gear are separated and separated from each other.

According to an embodiment of the invention, the rotating brush is configured to be removed from the housing of the cleaning head in a removal direction substantially parallel to a longitudinal axis of the rotating brush.

According to an embodiment of the invention, the drive motor is fixed to the housing of the cleaning head.

According to an embodiment of the invention, the drive motor extends at least partially in the rotating brush.

According to an embodiment of the invention, the output shaft of the drive motor substantially coincides with the longitudinal axis of the rotatable brush.

According to an embodiment of the present invention, the rotating brush includes a brush main body including an inner containing portion in which the speed reducer is contained.

According to an embodiment of the invention, the drive motor extends at least partially in the inner housing of the brush body.

According to an embodiment of the invention, the brush body comprises a tubular circumferential wall.

According to an embodiment of the invention, the brush body has a substantially cylindrical shape.

According to an embodiment of the present invention, the rotating brush includes a plurality of brush bristles, which are provided on an outer circumferential surface of the brush main body.

According to an embodiment of the present invention, the speed reducer is accommodated in a central portion of the rotary brush, more specifically, in a central portion of the brush main body.

According to an embodiment of the present invention, the brush body includes an inner support wall, the inner support wall is transverse to the extending direction of the brush body extends, and the speed reducer is fixed on the inner support wall.

According to an embodiment of the invention, the inner support wall is located in a central region of the brush body.

According to an embodiment of the invention, the housing of the cleaning head comprises a lower surface and a suction chamber, the lower surface being intended to be located opposite a floor to be cleaned, the suction chamber comprising a suction opening leading to the lower surface of the housing, the rotary brush being removably mounted in the suction chamber.

According to an embodiment of the invention, the rotating brush is arranged opposite the suction opening.

According to an embodiment of the invention, the suction opening extends transversely to the direction of movement of the cleaning head. The suction opening may for example be substantially rectangular in shape.

According to an embodiment of the invention, the suction opening is located in a front area of the lower surface of the housing.

According to an embodiment of the invention, the housing comprises a side opening, which opens into the suction chamber, and the rotating brush can be removed from the housing through the side opening.

According to an embodiment of the present invention, the reducer includes a coupling portion rotatably coupled to an output shaft of the driving motor.

According to an embodiment of the present invention, the cleaning head includes a coupling member fitted on the output shaft of the driving motor, the coupling member being rotatably coupled to the coupling portion of the speed reducer.

According to an embodiment of the invention, the coupling part and the coupling element have a non-circular cross-section.

According to an embodiment of the present invention, the coupling portion and the coupling member are configured to permit axial movement of the speed reducer relative to the drive motor to allow removal of the rotating brush from the housing.

According to one embodiment of the invention, the reducer is a planetary gear train reducer (epicyclic gear train)

)。

According to an embodiment of the present invention, the speed reducer includes:

-coaxial inner and outer planet gears, the inner planet gear being rotationally movable about an axis of rotation and being rotationally integral with the coupling portion, the outer planet gear being fixed relative to the rotating brush; and

-at least one satellite gear rotatably movably mounted on a satellite gear carrier and simultaneously meshing with the inner and outer planet gears, the satellite gear carrier being fixedly mounted relative to the housing.

According to an embodiment of the present invention, the speed reducer includes a frame fixed to the rotary brush, and an outer planetary gear is provided on the frame. Advantageously, the outer planet gear is formed by an inner gear ring (coronene dent é element) and the outer planet gear is formed by a planet carrier (planet carrier).

According to an embodiment of the invention, the coupling part and the inner planetary gear are integral.

According to an embodiment of the invention, the rotating brush comprises a fixed part configured to be removably fixed on the housing of the cleaning head. The fixing portion may for example be provided with a bayonet fixing system or the like.

According to an embodiment of the invention, the fixed part at least partially encloses an end of the brush body located opposite the drive motor.

According to an embodiment of the invention, the fixing portion is configured to cooperate with a fixing mechanism provided at the side opening of the housing.

According to an embodiment of the invention, the brush body is mounted rotatably movable relative to the stationary part.

According to one embodiment of the invention, the rotating brush comprises a bearing, for example a rolling bearing, in particular a ball rolling bearing, which is interposed between the fixed part and a support ring fixed on the end of the brush body located opposite the drive motor. Advantageously, the support ring is located inside the brush body and is fixed to the inner surface of the brush body, for example by gluing or welding.

According to an embodiment of the invention, a damping element is interposed between the fixed part and the bearing.

According to an embodiment of the invention, the cleaning head is not provided with a bearing that can cooperate with the end of the rotating brush located on one side of the drive motor.

The utility model discloses still relate to a domestic dust catcher, it includes according to the utility model discloses a cleaning head.

Drawings

The invention will be better understood by means of the following description with reference to the schematic drawings which show, by way of non-limiting example, embodiments of the cleaning head.

Figure 1 is a bottom perspective view of a cleaning head according to the present invention.

Fig. 2 is a bottom perspective view of the cleaning head of fig. 1, showing the step of removing the rotating brush from the housing of the cleaning head.

Figure 3 is a cut-away perspective view of the cleaning head of figure 1 in which the rotating brush has been placed.

Fig. 4 is a cut-away perspective view of the rotary brush.

Fig. 5 is a bottom perspective view of the cleaning head of fig. 1 with the rotating brush positioned.

Fig. 6 is a front perspective exploded view of a decelerator pertaining to the cleaning head of fig. 1.

Fig. 7 is a rear perspective exploded view of the decelerator of fig. 6.

Detailed Description

Figures 1 to 7 show a cleaner head 2 for a vacuum cleaner.

The cleaning head 2 comprises a housing 3, the housing 3 being made of plastic, for example, the housing 3 being provided with a lower surface 4, the lower surface 4 being intended to be located opposite a floor surface to be cleaned. According to the embodiment shown in the figures, the lower surface 4 comprises a front portion 5 and a rear portion 6, the front portion 5 having a substantially rectangular shape and the rear portion 6 having a substantially triangular shape.

The housing 3 further comprises a suction chamber 7, which suction chamber 7 comprises a suction opening 8, which suction opening 8 opens into the lower surface 4 of the housing 3, more specifically into the front portion 5 of the lower surface 4. Advantageously, the suction opening 8 has a substantially rectangular shape and extends transversely to the direction of movement of the cleaning head 2.

The cleaner head 2 also comprises a mounting portion 9 to which a fitting (embout) of a suction tube (not shown) of the cleaner, which may be rigid or flexible and which is itself connected to the suction system of the cleaner, is intended to be secured. Various variants of vacuum cleaner exist on the market and can be used with the cleaner head 2 according to the invention. Such variants are known to the person skilled in the art and are not described in detail in the present patent application.

The cleaning head 2 also comprises two moving wheels 11 for rolling over the surface to be cleaned. Advantageously, a moving wheel 11 is provided on each side of the mounting portion 9.

The cleaner head 2 further comprises a suction duct 12 comprising a first end opening into a central portion of the suction chamber and a second end for fluid connection to a suction duct, for example by means of a flexible connection duct.

The cleaning head 2 further comprises a rotating brush 13, which rotating brush 13 is removably mounted in the suction chamber 7 and is arranged opposite the suction opening 8. The rotatable brush 13 is configured to be removed from the housing 3 of the cleaning head 2 according to a removal direction D substantially parallel to the longitudinal axis a of the rotatable brush 13.

As shown more specifically in fig. 4, rotary brush 13 includes a brush body 14 of a substantially cylindrical shape. The brush body 14 more specifically includes a tubular peripheral wall 15 and an inner content portion 16, the inner content portion 16 being externally delimited by the tubular peripheral wall 15. Brush body 14 includes a first end 14.1 and a second end 14.2 opposite first end 14.1, with inner content portion 16 opening into second end 14.2 of brush body 14. Advantageously, the first and second ends 14.1, 14.2 of the brush body 14 are located adjacent first and second side edges, respectively, of the housing 3 of the cleaning head 2.

The rotatable brush 13 further comprises a fixed portion 17 integral with the brush body 14 and enclosing a first end 14.1 of the brush body 14. The fixed portion 17 is more specifically configured to be removably fixed on the housing 3 of the cleaning head 2.

The rotating brush 13 further includes a plurality of bristles (not shown in the drawings) disposed on the outer circumferential surface of the brush body 14.

According to the embodiment shown in the figures, the housing 3 comprises a side opening 18, which opens into the suction chamber 7, and the rotating brush 13 can be removed from the housing 3 through this side opening 18. The fixing portion 17 may, for example, be equipped with a bayonet fixing system or the like configured to cooperate with a complementary fixing system provided at the side opening 18 of the housing 3.

The cleaning head 2 further comprises a drive motor 19 which is fixed to the housing 3 of the cleaning head 2 and extends at least partially in the inner receiving portion 16 of the brush body 14. The drive motor 19 comprises an output shaft 20 which extends along a motor axis which coincides with the longitudinal axis a of the rotatable brush 13.

The cleaning head 2 further comprises a reducer 21 which is rotatably coupled to the drive motor 19 such that the rotating brush 13 can be driven in rotation by the drive motor 19 through the reducer 21. Advantageously, the reducer 21 is housed in the inner housing 16 of the brush body 14 and is fixed to the rotating brush 13, so that the reducer 21 remains integral with the rotating brush 13 when the rotating brush 13 is extracted from the housing 3 of the cleaning head 2.

According to the embodiment shown in the drawings, the speed reducer 21 is housed in the central portion of the brush body 14. For this purpose, the brush body 14 includes an inner support wall 22 extending transversely to the extending direction of the brush body 14 and located in a central region of the brush body 14, and a speed reducer 21 is fixed to the inner support wall 22.

As shown more specifically in fig. 4 and 6, the speed reducer 21 includes a coupling portion 23, the coupling portion 23 being rotatably coupled to a coupling member 30, the coupling member 30 being fitted on the output shaft 20 of the drive motor 19. Advantageously, coupling portion 23 and coupling 30 have non-circular (e.g. hexagonal) and complementary cross-sections and are configured to permit axial movement of reducer 21 relative to drive motor 19 to allow decoupling of reducer 21 and output shaft 20 when rotating brush 13 is removed from housing 3. The coupling portion 23 may, for example, comprise a hexagonal cavity capable of receiving the coupling 30.

According to the embodiment shown in the figures, the reducer 21 is a planetary gear reducer. Therefore, the speed reducer 21 includes:

coaxial inner and outer planet gears 24, 25, the inner planet gear 24 being rotationally movable about an axis of rotation and being rotationally integral with the coupling portion 23, the outer planet gear 25 being fixed with respect to the rotating brush 13; and

a plurality of satellite gears 26 mounted rotatably mobile on a satellite carrier 27 and simultaneously meshing with the inner and outer planet gears 24, 25, the satellite carrier 27 being fixedly mounted with respect to the casing 3 and in particular with respect to a motor casing 31 housing the drive motor 19.

Advantageously, the coupling portion 23 and the inner planetary gears 24 are integral, and the reducer 21 comprises a frame 28, the frame 28 being fixed to the inner supporting wall 22, and the outer planetary gears 25 being arranged on the frame 28. The outer planet gears 25 may for example be formed by an inner ring gear. The frame 28 can optionally include fixing fingers 29 that extend through holes provided on the inner support wall 22. Advantageously, fixed fingers 29 extend parallel to and are offset with respect to longitudinal axis a of rotating brush 13. The frame 28 is also advantageously fixed to the inner support wall 22 by means of fixing screws.

A resilient ring 32, also called circlip, is advantageously provided on the inner planetary gear 24 in order to retain the assembled reducer 21 when the rotating brush 13 is removed. The elastic ring 32 prevents or at least limits the translation of the inner planet gears 24 relative to the outer planet gears 25.

According to the embodiment shown in the figures, the rotating brush 13 also comprises a bearing 33, for example a rolling bearing, in particular a ball rolling bearing, this bearing 33 being interposed between the fixed portion 17 and a supporting ring 34, this supporting ring 34 being located inside the brush body 14 and being fixed on the end of the brush body 14 located opposite the drive motor 19. The presence of the bearing 33 allows the fixed portion 17 not to be driven to rotate when the brush body 14 is driven to rotate by the drive motor 19. Advantageously, the damping element 35 is interposed between the fixed portion 17 and the bearing 33. For this purpose, the fixed portion 17 can comprise a housing in which the damping element 35 is mounted, the bearing 33 being provided between the inner surface of the damping element 35 and the central portion of the support ring 34.

Advantageously, the cleaning head 2 is not provided with any bearing capable of cooperating with the second end 14.2 of the brush body 14, this second end 14.2 being located on the side of the drive motor 19.

The invention is of course in no way limited to the embodiments described and shown by way of example. Modifications can be made, in particular from the point of view of the construction of the various elements or by substituting technical equivalents, without departing from the scope of protection of the present invention.

Claims

1. A cleaner head (2) for a vacuum cleaner, comprising: -a housing (3), -a drive motor (19), -a reducer (21) rotatably coupled to the drive motor (19), and-a rotating brush (13), the rotating brush (13) being configured to be driven in rotation by the drive motor (19) through the reducer (21), -the rotating brush (13) being removably mounted in the housing (3) of the cleaning head, characterized in that the reducer (21) is housed in the rotating brush (13) and fixed on the rotating brush (13) such that the reducer (21) remains integral with the rotating brush (13) when the rotating brush (13) is removed from the housing (3) of the cleaning head (2).

2. A cleaning head (2) according to claim 1, wherein the drive motor (19) is fixed on the housing (3) of the cleaning head (2).

3. A cleaning head (2) according to claim 1, wherein the drive motor (19) extends at least partially in the rotating brush (13).

4. A cleaning head (2) according to claim 2, wherein the drive motor (19) extends at least partially in the rotating brush (13).

5. The cleaning head (2) according to any one of claims 1 to 4, wherein the rotating brush (13) comprises a brush main body (14), the brush main body (14) comprising an inner content portion (16) in which the decelerator (21) is accommodated.

6. A cleaning head (2) according to claim 5, wherein the brush body (14) comprises an inner support wall (22), the inner support wall (22) extending transversely to the direction of extension of the brush body (14), the decelerator (21) being fixed to the inner support wall (22).

7. A cleaning head (2) according to any of claims 1-4, wherein the housing (3) of the cleaning head comprises a lower surface (4) and a suction chamber (7), the lower surface (4) being intended to be located opposite a floor to be cleaned, the suction chamber (7) comprising a suction opening (8), the suction opening (8) opening into the lower surface (4) of the housing (3), the rotating brush (13) being removably mounted in the suction chamber (7).

8. A cleaning head (2) according to claim 7, wherein the housing (3) comprises a side opening (18), the side opening (18) opening into the suction chamber (7), and the rotating brush (13) is removed from the housing (3) through the side opening (18).

9. A cleaning head (2) according to any of claims 1-4, wherein the reducer (21) comprises a coupling portion (23), the coupling portion (23) being rotatably coupled to the output shaft (20) of the drive motor (19).

10. A cleaning head (2) according to any of claims 1 to 4, wherein the reducer (21) is a planetary gear train reducer.

11. A cleaning head (2) according to any of claims 1-4, wherein the drive motor (19) and the reducer (21) are separate and apart from each other.

12. A household cleaner, characterized in that it comprises a cleaning head (2) according to any one of claims 1 to 11.