CN110269545B

CN110269545B - Dust collector suction nozzle with rear scraping rib

Info

Publication number: CN110269545B
Application number: CN201910188204.5A
Authority: CN
Inventors: 克里斯泰勒·菲利普; 维吉妮·波特拉; 让-达米安·维维耶
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2018-03-14
Filing date: 2019-03-13
Publication date: 2023-05-30
Anticipated expiration: 2039-03-13
Also published as: CN210354558U; FR3078877B1; CN110269545A; ES2919957T3; EP3539433A1; EP3539433B1; FR3078877A1

Abstract

The cleaner nozzle (2) of the invention comprises a sole plate (5), said sole plate (5) being provided with a lower surface (11), a suction channel (12) leading to said lower surface (11) and extending transversely to the direction of movement (D2) of the cleaner nozzle, and a rear scraping rib (23) protruding from said lower surface (11) of said sole plate (5) and intended to scrape the floor to be cleaned, said rear scraping rib (23) being in the vicinity of a rear edge (12 b) of said suction channel (12) and extending along said rear edge (12 b). The sole plate (5) comprises a support surface (22), the support surface (22) being arranged to be in contact with the floor to be cleaned, and the rear scraping rib (23) being positioned to retract from the support surface (22).

Description

Dust collector suction nozzle with rear scraping rib

Technical Field

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

Background

Cleaners equipped with a cleaner nozzle are well known in the market, which allow cleaning of surfaces by suction to empty the surfaces of dust and small particle waste that is retained on the surfaces. The surface to be cleaned may be, for example, a tile floor, a laminate, a mat or a carpet.

Conventionally, a vacuum cleaner nozzle comprises a connection sleeve and a soleplate provided with a lower surface and a suction channel communicating with the connection sleeve and leading to the lower surface of the soleplate. The lower surface of the sole plate is intended to be positioned adjacent to a surface to be cleaned during use of the cleaner nozzle.

The floor of the suction nozzle of the suction cleaner may for example be provided with a suction channel extending transversely to the direction of movement of the suction nozzle of the suction cleaner and at least two flexible scraping ribs arranged on both sides of the suction channel and serving to scrape the floor surface to be cleaned.

However, such a construction of the suction nozzle of the cleaner necessarily results in premature wear of the scraping ribs, in particular when the suction nozzle of the cleaner is reused on smooth hard floors, and thus in insufficient or even ineffective scraping of the floor to be cleaned by the scraping ribs.

Disclosure of Invention

The present invention aims to overcome all or part of these disadvantages.

The technical problem underlying the present invention is in particular to provide a suction nozzle of a vacuum cleaner which is structurally reliable and economical while ensuring an optimal scraping of the floor surface to be cleaned.

To this end, the invention relates to a suction nozzle of a vacuum cleaner, comprising a floor plate provided with a lower surface, a suction channel opening to the lower surface and extending transversely to the direction of movement of the suction nozzle, and a rear scraping rib projecting from the lower surface of the floor plate and intended to scrape a floor surface to be cleaned, the rear scraping rib extending near and along a rear edge of the suction channel, characterized in that the floor plate comprises a support surface which is arranged to be in contact with the floor surface to be cleaned, and that the rear scraping rib is positioned to retract from the support surface so as to be located at a distance from the floor surface to be cleaned when the support surface is in contact with the floor surface to be cleaned and the floor surface to be cleaned is smooth.

This configuration of the rear scraping rib and the support surface allows avoiding contact between the rear scraping rib and the floor to be cleaned and thus keeping the rear scraping rib intact when the cleaner nozzle is used on smooth floors, in particular when the cleaner nozzle is equipped with a brush, when the brush of the cleaner nozzle is not removed. The suction nozzle of the vacuum cleaner according to the invention thus allows to simultaneously ensure an optimal scraping of the soft floor surface to be cleaned.

The vacuum cleaner nozzle may also have one or more of the following features, alone or in combination.

According to one embodiment of the invention, the support surface is arranged on the soleplate in order to ensure a positive predetermined distance between the floor to be cleaned and the rear scraping rib, at least when the floor to be cleaned is smooth.

In other words, the rear scraping rib is arranged at a predetermined distance from a support plane, which is defined in part by the support surface.

According to one embodiment of the invention, the predetermined distance is between 0.5mm and 2mm, and for example between 0.5mm and 1 mm.

According to one embodiment of the invention, the bearing surface is formed by a bearing roller.

According to one embodiment of the invention, the support surface is arranged at the rear of the suction channel.

According to one embodiment of the invention, the rear scraping rib is located at the intersection of the lower surface of the sole plate and the rear side wall of the suction channel.

According to one embodiment of the invention, the rear scraping rib extends in the continuation of the rear side wall of the suction channel.

According to one embodiment of the invention, the lower surface comprises a rear sliding surface and a front sliding surface, said rear sliding surface and said front sliding surface being located on both sides of the suction channel, a rear scraping rib protruding from said rear sliding surface.

According to one embodiment of the invention, the rear sliding surface is inclined with respect to the horizontal by an angle of inclination of between 2 ° and 5 °, and for example between 2.5 ° and 3 °, when the front and rear edges of the suction channel are arranged in a substantially horizontal plane. These arrangements allow to ensure a sufficient air supply to the suction nozzle of the cleaner to allow to suck in waste without ventilating the suction nozzle of the cleaner.

According to one embodiment of the invention, the rear sliding surface is substantially flat.

According to one embodiment of the invention, when the front and rear edges of the suction channel are arranged in a substantially horizontal plane, the front sliding surface is inclined with respect to the horizontal plane by an inclination angle of between 2 ° and 5 °, and for example between 2 ° and 3 °. These arrangements also allow to ensure a sufficient air supply to the suction nozzle of the cleaner to allow to suck in waste without ventilating the suction nozzle of the cleaner.

According to one embodiment of the invention, the front sliding surface is substantially flat.

According to one embodiment of the invention, the rear sliding surface comprises a central portion and two lateral portions arranged on either side of the central portion, the two lateral portions of the rear sliding surface being adjacent to two opposite ends of the dust collection channel, respectively, the rear sliding surface having a width which decreases from the central portion of the rear sliding surface towards each end of the lateral portions of the rear sliding surface. These arrangements promote the passage of air at the ends of the suction channel and thus ensure satisfactory suction over substantially the entire length of the suction channel, which improves the performance of the suction nozzle of the cleaner.

According to one embodiment of the invention, the bearing surface is provided at the rear sliding surface.

According to one embodiment of the invention, the lower surface of the sole plate comprises a rear portion, preferably flat, positioned to retract from the rear sliding surface, and a connection surface connecting the rear sliding surface to the rear portion, the connection surface being convex, the projection of the connection surface being oriented opposite the suction channel. These arrangements promote the passage of air at the ends of the suction channel and thus ensure satisfactory suction over substantially the entire length of the suction channel, which improves the performance of the suction nozzle of the cleaner.

According to one embodiment of the invention, the connecting surface connects the rear sliding surface to the rear part so as to form a gap in the rear part of the rear sliding surface.

According to one embodiment of the invention, the connection surface is curved.

According to one embodiment of the invention, the connection surface is convex, as seen in a plane through the front and rear edges of the suction channel, and is for example curved.

According to one embodiment of the invention, the connection surface is convex from a first lateral portion of the bottom plate to a second lateral portion of the bottom plate, which is opposite to said first lateral portion, and is for example curved.

According to one embodiment of the invention, the rear sliding surface comprises a rear edge which is curved and preferably rounded.

According to one embodiment of the invention, the rear sliding surface comprises a front edge, which is substantially parallel to the direction of extension of the suction channel. Advantageously, the front edge of the rear sliding surface is substantially rectilinear.

According to one embodiment of the invention, the connection surface extends over substantially the entire length of the base plate.

According to one embodiment of the invention, the connection surface extends from a first side edge of the base plate to a second side edge of the base plate. Advantageously, the connection surface is convex and, for example, curved from a first side edge of the bottom plate to a second side edge of the bottom plate.

According to one embodiment of the invention, the rear scraping rib has a height of between 0.3mm and 0.9 mm.

According to one embodiment of the invention, the rear scraping rib has a thickness of between 0.4mm and 0.6 mm.

According to one embodiment of the invention, the sole plate further comprises a connection sleeve configured to communicate with the suction channel and a fork arranged between the sole plate and the connection sleeve, the connection sleeve being pivotally mounted on the fork about a first transverse pivot axis and the fork being pivotally mounted on the sole plate about a second transverse pivot axis.

According to one embodiment of the invention, the suction nozzle further comprises at least one brush, which brush is movable between a lowered position, in which the at least one brush is positioned protruding from the lower surface of the base plate, and a raised position, in which the at least one brush is positioned retracted from the lower surface of the base plate.

According to one embodiment of the invention, the suction nozzle of the cleaner comprises a moving wheel, which can be mounted, for example, on the fork and advantageously on each side of the fork. Advantageously, the moving wheel and the bearing surface define a bearing plane.

According to one embodiment of the invention, the sole plate comprises a front scraping edge for scraping the floor to be cleaned, the rear scraping rib and the front scraping edge being arranged on both sides of the suction channel. Advantageously, the front scraping edge is located at the intersection of the lower surface of the sole plate and the front side wall of the suction channel.

According to one embodiment of the invention, the rear scraping rib extends over at least half of the length of the suction channel and for example over substantially the entire length of the suction channel.

According to one embodiment of the invention, the suction channel comprises a front edge, which is substantially parallel to a rear edge of the suction channel.

Advantageously, the suction channel has a height which decreases from a central portion of the suction channel towards each of the opposite ends of the suction channel.

According to one embodiment of the invention, the rear sliding surface extends from the rear edge of the suction channel and the front sliding surface extends from the front edge of the suction channel.

According to one embodiment of the invention, the suction channel has a height of between 15mm and 25 mm. These arrangements allow to ensure an optimal attachment of the suction nozzle of the cleaner on the floor surface to be cleaned.

According to one embodiment of the invention, the rear scraping rib has a substantially parallelepiped shape.

According to one embodiment of the invention, the rear scraping rib is rigid and is for example made of a rigid plastic.

The invention also relates to a household vacuum cleaner comprising a vacuum cleaner nozzle according to any of the preceding claims.

Drawings

In any event, the invention will be better understood by means of the following description with reference to the accompanying schematic drawings, which show, by way of non-limiting example, embodiments of the suction nozzle of the vacuum cleaner.

Fig. 1 and 2 are perspective bottom views of a suction nozzle of a vacuum cleaner according to the present invention.

Fig. 3 is a bottom view of the suction nozzle of the cleaner of fig. 1.

Figure 4 is a side view of the suction nozzle of the cleaner of figure 1.

Fig. 5 is an enlarged scale partial cross-sectional view of the suction nozzle of the cleaner of fig. 1.

Detailed Description

Fig. 1 to 5 show a vacuum cleaner nozzle 2, which vacuum cleaner nozzle 2 comprises a connection sleeve 3, at the end 3a of which connection sleeve 3a is connected a joint of a rigid or flexible tube, which tube itself is connected to the suction system (not shown) of the vacuum cleaner. There are already various cleaner variants on the market and these can be used with the cleaner nozzle 2 according to the invention; these variants are known to the person skilled in the art and are not described in detail in the present patent application.

The vacuum cleaner nozzle 2 further comprises a fork 4 and two moving

wheels

4a,4b, which two moving

wheels

4a,4b are mounted on the fork 4. The connecting sleeve 3 is mounted pivotably connected with respect to the fork 4 along a first transverse pivot axis X1, which first transverse pivot axis X1 preferably corresponds to the axis of rotation of the moving

wheels

4a,4b, which moving

wheels

4a,4b are each arranged on one side of the fork 4 and one side of the connecting sleeve 3. However, a variant of the suction nozzle of the vacuum cleaner according to the invention can be arranged such that the axis of rotation of the moving

wheels

4a,4b is slightly offset downwards and/or backwards with respect to the first transverse pivot axis X1.

The cleaner nozzle 2 further comprises a base plate 5, which base plate 5 is for example made of plastic. The fork 4 is pivotally mounted in relation to the base plate 5 along a second transverse pivot axis X2. For this purpose, the fork 4 comprises two branches 6, 7, which branches 6, 7 are each provided, for example, with a hole (not visible in the figures) which pivotally receives a corresponding stud provided at the rear of the bottom plate 5.

Accordingly, the connecting sleeve 3 can be swung forward or backward with respect to the fork 4, as indicated by

arrows

10a and 10b in fig. 4, respectively, and the fork 4 can also be swung forward or backward with respect to the base plate 5, as indicated by

arrows

9a and 9b in fig. 4, respectively.

The soleplate 5 is provided with, inter alia, a lower surface 11 and a suction channel 12, which suction channel 12 opens onto the lower surface 11. The dust collection channel 12 communicates with the connecting sleeve 3 via a flexible conduit 13.

The suction channel 12 extends in an extension direction D1 and transversely to the direction of movement D2 of the suction nozzle 2. The suction channel 12 comprises a front edge 12a and a rear edge 12b, which front edge 12a and rear edge 12b are advantageously parallel with respect to each other. Thus, the dust collection channel has a generally rectangular shape.

Advantageously, the suction channel 12 has a height that decreases from a central portion of the suction channel 12 towards each of the opposite ends of the suction channel 12.

The lower surface 11 of the sole plate 5 comprises a rear sliding surface 14 and a front sliding surface 15, the rear sliding surface 14 and the front sliding surface 15 being located on either side of the dust collection channel 12. The rear sliding surface 14 extends from the rear edge 12b of the dust collection channel 12, while the front sliding surface 15 extends from the front edge 12a of the dust collection channel 12.

Advantageously, the rear sliding surface 14 is flat and when the front edge 12a and the rear edge 12b of the dust collection channel 12 are arranged in a substantially horizontal plane, the rear sliding surface 14 is inclined with respect to the horizontal plane by an inclination angle of between 2 ° and 5 °, and advantageously between 2.5 ° and 3 °, and for example about 2.7 °.

Advantageously, the front sliding surface 15 is flat and when the front edge 12a and the rear edge 12b of the dust collection channel 12 are arranged in a substantially horizontal plane, the front sliding surface 15 is inclined with respect to the horizontal plane by an inclination angle comprised between 2 ° and 5 °, and advantageously between 2.5 ° and 3 °, and for example about 2.7 °.

According to the embodiment of the invention shown in the figures, each of the front and rear sliding surfaces extends over the entire length of the suction channel 12 and preferably from a first side edge 16 of the sole plate 5 to a second side edge 17 of the sole plate 5, which second side edge 17 is opposite to the first side edge 16.

As shown more particularly in fig. 3, the rear slide surface 14 comprises a central portion 14.1 and two lateral portions 14.2, 14.3, which two lateral portions 14.2, 14.3 are provided on either side of the central portion 14.1 and are adjacent to opposite ends of the dust collection channel 12, respectively. The rear sliding surface 14 has a width W that decreases from the central portion 14.1 of the rear sliding surface 14 towards each end of the lateral portions 14.2, 14.3 of the rear sliding surface 14.

The lower surface 11 of the sole plate 5 further comprises a rear portion 18 and a connecting surface 19, the rear portion 18 preferably being flat and positioned to retract from the rear sliding surface 14, the connecting surface 19 connecting the rear sliding surface 14 to the rear portion 18 so as to form a gap 21 at the rear of the rear sliding surface 14. The connection surface 19 advantageously extends over substantially the entire length of the bottom plate 5 and preferably from a first side edge 16 of the bottom plate 5 to a second side edge 17 of the bottom plate.

From the first side edge 16 of the bottom plate 5 to the second side edge 17 of the bottom plate 5, the connecting surface 19 is convex and preferably curved. The projections of the attachment surface 19 are oriented opposite the suction channel 12.

The connecting surface 19 is more specifically configured such that the rear sliding surface 14 has a rear edge 14a, which rear edge 14a is curved and preferably rounded.

The sole plate 5 further comprises support surfaces 22, which support surfaces 22 are arranged to be in contact with the floor surface to be cleaned. The bearing surface 22 is more particularly provided at the rear of the dust collection channel 12 and, for example, at the rear sliding surface 14. The bearing surface 22 and the moving

wheels

4a,4b define a bearing plane P.

According to the embodiment shown in the figures, the bearing surface 22 is formed by a bearing roller protruding from the rear sliding surface 14.

The sole plate 5 further comprises rear scraping ribs 23, which rear scraping ribs 23 project from the rear sliding surface 14 and serve to scrape the floor to be cleaned, and more particularly soft floors (e.g. carpets, carpets). The rear scraping rib 23 is advantageously rectilinear and substantially parallel to the direction of extension D1 of the suction channel 12.

The rear scraping rib 23 is adjacent to the rear edge 12b of the dust collection channel 12 and extends along the rear edge 12 b. Advantageously, the rear scraping rib 23 is located at the intersection of the rear sliding surface 14 and the rear side wall 24 of the suction channel 12, and the rear scraping rib 23 extends in a succession of the rear side wall 24 of the suction channel 12, and for example over substantially the entire length of the suction channel 12.

The rear scraping ribs 23 are positioned to retract from the support surface 22 and more particularly are arranged at a predetermined distance from a support plane P, which is defined in part by the support surface 22. The predetermined distance is between 0.5mm and 2mm, and advantageously between 0.5mm and 1 mm. Thus, the support surface 22 is arranged on the soleplate 5 to ensure a positive distance between the floor and the rear scraping rib 23.

The rear scraping rib 23 may, for example, have a height of between 0.3mm and 0.9mm, and may, for example, have a thickness of between 0.4mm and 0.6 mm.

The sole plate 5 further comprises a front scraping edge 25, which front scraping edge 25 is intended to scrape the floor surface to be cleaned. Rear scraping ribs 23 and front scraping ribs 25 are provided on both sides of the dust suction passage 12. Advantageously, the front scraping edge 25 is located at the intersection of the front sliding surface 15 and the front side wall 26 of the suction channel 12.

The cleaner nozzle 2 further comprises two

brushes

27, 28, which brushes 27, 28 are positioned on the front and rear side of the floor 5, respectively, and are movable between a lowered position, in which they are positioned protruding from the lower surface 11 of the floor 5, and a raised position, in which they 27, 28 are positioned retracted from the lower surface 11 of the floor 5. The two brushes 27, 28 may for example be mounted on a support 29, which support 29 is movably and for example slidably mounted on the base plate 5.

Of course, the invention is in no way limited to the described and illustrated embodiments which are given by way of example only. Modifications can be made without departing from the scope of protection of the invention, in particular from the point of view of the construction of the various elements or by substitution of technical equivalents.

Claims

1. A vacuum cleaner nozzle (2) comprising a floor (5), which floor (5) is provided with a lower surface (11), a suction channel (12) and a rear scraping rib (23), which suction channel (12) opens onto the lower surface (11) and extends transversely to a direction of movement (D2) of the vacuum cleaner nozzle, which rear scraping rib (23) projects from the lower surface (11) of the floor (5) and is intended to scrape a floor surface to be cleaned, which rear scraping rib (23) extends near a rear edge (12 b) of the suction channel (12) and along the rear edge (12 b), characterized in that the floor (5) comprises a support surface (22), which support surface (22) is arranged to be in contact with the floor surface to be cleaned, and that the rear scraping rib (23) is positioned to retract from the support surface (22),

wherein the lower surface (11) comprises a rear sliding surface (14) and a front sliding surface (15), the rear sliding surface (14) and the front sliding surface (15) being located on both sides of the dust collection channel (12), the rear scraping rib (23) protruding from the rear sliding surface (14),

the rear sliding surface (14) comprises a central portion (14.1) and two lateral portions (14.2, 14.3), the two lateral portions (14.2, 14.3) being arranged on both sides of the central portion (14.1), the two lateral portions (14.2, 14.3) of the rear sliding surface (14) being respectively adjacent to two opposite ends of the dust collection channel (12), the rear sliding surface (14) having a width (W) which decreases from the central portion (14.1) of the rear sliding surface (14) towards each end of the lateral portions (14.2, 14.3) of the rear sliding surface (14).

2. A vacuum cleaner nozzle (2) according to claim 1, wherein the rear scraping rib (23) is arranged at a predetermined distance from a support plane (P), which support plane (P) is partly defined by the support surface (22).

3. A vacuum cleaner nozzle (2) according to claim 2, wherein the predetermined distance is between 0.5mm and 2mm, and for example between 0.5mm and 1 mm.

4. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the support surface (22) is formed by a support roller.

5. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the rear scraping rib (23) is located at the intersection of the lower surface (11) of the sole plate (5) and a rear side wall (24) of the suction channel (12).

6. A vacuum cleaner nozzle (2) according to claim 5, wherein the rear scraping rib (23) extends in a continuation of the rear side wall (24) of the suction channel (12).

7. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the rear sliding surface (14) is inclined with respect to the horizontal plane by an angle of inclination between 2 ° and 5 °, and for example between 2.5 ° and 3 °, when the front edge (12 a) and the rear edge (12 b) of the suction channel (12) are arranged in a substantially horizontal plane.

8. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the rear sliding surface (14) is substantially flat.

9. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the front sliding surface (15) is inclined with respect to the horizontal plane by an angle of inclination of between 2 ° and 5 °, and for example between 2 ° and 3 °, when the front edge (12 a) and the rear edge (12 b) of the suction channel (12) are arranged in a substantially horizontal plane.

10. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the lower surface (11) of the sole plate (5) comprises a rear portion (18) and a connecting surface (19), the rear portion (18) being positioned to retract from the rear sliding surface (14), the connecting surface (19) connecting the rear sliding surface (14) to the rear portion (18), the connecting surface (19) being convex, the bulge of the connecting surface (19) being oriented opposite the suction channel (12).

11. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the rear scraping rib (23) has a height of between 0.3mm and 0.9 mm.

12. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the rear scraping rib (23) has a thickness of between 0.4mm and 0.6 mm.

13. A vacuum cleaner nozzle (2) according to any one of claims 1-3, wherein the base plate (5) further comprises a connection sleeve (3) and a fork (4), the connection sleeve (3) being configured to communicate with the suction channel (12), the fork (4) being arranged between the base plate (5) and the connection sleeve (3), the connection sleeve (3) being pivotally mounted on the fork (4) about a first lateral pivot axis (X1), and the fork (4) being pivotally mounted on the base plate (5) about a second lateral pivot axis (X2).

14. A vacuum cleaner nozzle (2) according to any one of claims 1-3, further comprising at least one brush (27, 28), the at least one brush (27, 28) being movable between a lowered position, in which the at least one brush (27, 28) is positioned protruding from the lower surface (11) of the sole plate (5), and a raised position, in which the at least one brush (27, 28) is positioned retracted from the lower surface (11) of the sole plate (5).

15. A household vacuum cleaner comprising a vacuum cleaner nozzle (2) according to any one of the preceding claims.