RU2411899C2 - Nozzle for cleaning device - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to nozzle for cleaning device, in particular, vacuum cleaner. Nozzle (10; 100) for cleaning device comprises head (12; 112) with suction hole (20a, 20b; 112b) and journal (11; 111), comprising middle section (14; 114) and end section (16; 116) for connection with output end of rigid adapter or hose. End section comprises longitudinal axis (X-X). Besides, nozzle comprises the first rotary joint (18; 118), having the first axis of rotation (X'-X'; X"-X") and arranged between end section and middle section (14; 114), and the second rotary connection (26; 126), having the second axis of rotation (Y'-Y'; Y"-Y") and arranged between head (12; 112) and middle section (14; 114). Each rotary joint (18, 26; 118, 126) allows for mutual displacement of end section and head (12; 112). Axis (X'-X'; X"-X") of rotation of the first rotary joint (18; 118) is arranged at the angle to longitudinal axis (X-X) of end section. Due to the first rotary joint (18; 118), having axis (X'-X'; X"-X") of rotation, arranged at the angle to longitudinal axis (X-X) of end section, head (12; 112) of nozzle (10; 100) may be displaced into multiple convenient positions to facilitate cleaning of walls and horizontal surfaces located at large height.

EFFECT: development of nozzle for cleaning device, which allows for more flexible alignment of suction hole relative to rigid adapter or hose compared to available nozzles.

16 cl, 9 dwg

Description

The invention relates to a nozzle for a cleaning device, in particular a vacuum cleaner.

Nozzles for vacuum cleaners are widely known. Vacuum cleaners are often sold with a set of nozzles for various purposes. These nozzles are usually mounted on the end of a rigid adapter or hose of a vertical or cylindrical vacuum cleaner. For example, a vacuum cleaner may be equipped with a brush nozzle for removing dust from surfaces, a nozzle for cleaning stairs and a nozzle for cleaning hard-to-reach areas where larger nozzles are not applicable.

For effective cleaning, it is important to position the suction nozzle of the nozzle close to or in contact with the surface to be cleaned. Preferably, the suction port is entirely located in close proximity to the surface being cleaned. Too large a gap between the suction nozzle of the nozzle and the surface to be cleaned reduces the passage of air along or through the surface to be cleaned before it enters the suction port. Thus, less dirt and dust will be collected and the cleaning ability of the vacuum cleaner will be reduced.

To ensure sufficient proximity between the nozzle inlet and the surface to be cleaned, the rigid adapter or hose of the vacuum cleaner to which the nozzle is attached should usually be held at a certain angle. Therefore, some surfaces are very difficult to clean with a conventional nozzle. For example, cleaning the upper surfaces of doors, shelves or cabinets is particularly problematic due to their location at a high height relative to the user.

Therefore, a nozzle for a vacuum cleaner, for example a nozzle for cleaning stairs or a brush nozzle, is often provided with a swivel connection located between the head and the connecting part (connected to the output end of the rigid adapter or hose) of the nozzle. The swivel joint can be rotated relative to the head or the connecting part, providing different angular positions of the head relative to the rigid adapter or hose. This makes it easier for the user to clean hard-to-reach surfaces.

However, a single swivel connection allows only a limited set of angular positions of the head relative to the rigid adapter or nozzle hose. When using this nozzle, the user is forced to hold the rigid adapter or device hose at an uncomfortable angle, which complicates the cleaning of individual surfaces, in particular those located at high heights (for example, the upper surfaces of racks, cabinets or lighting fixtures).

In documents US 1658311 and JP 2003-000483 described nozzles for vacuum cleaners having two swivel joints. US 1658311 describes a nozzle for a vacuum cleaner that comprises two perpendicular angular joints connected by a plurality of union nuts. Union nuts allow relative rotation of the angle joints. This allows you to rotate the tip of the nozzle in various angular positions relative to the handle. JP 2003-000483 describes a nozzle for a vacuum cleaner that comprises a rectangular tip and a rear pipe interconnected by a movable joint. The hinge contains a pair of parallel swivel joints. Swivel joints allow you to rotate the rectangular tip up and down relative to the connecting portion.

However, the swivel joints or hinges of the above nozzles allow only the movement of the respective tips in planes perpendicular or parallel to the handle or rear tube of the respective nozzles. This limits the range of potential positions of the tip relative to the handle.

The objective of the invention is to provide nozzles for a cleaning device that allows a more flexible orientation of the suction port relative to a rigid adapter or hose than in known nozzles. Another task is to create a nozzle that allows you to clean many surfaces, in particular walls and surfaces located at high heights, with great convenience for the user.

These problems are solved in the nozzle for a cleaning device, which contains a head with a suction hole located in the suction plane and a neck containing a middle section and an end section with a longitudinal axis for connecting to the output end of a rigid adapter or hose, the nozzle containing a first swivel connection having a first the axis of rotation and located between the end and middle sections, and a second rotary connection having a second axis of rotation and located between the head and the middle section, while the end section and the head are movable by means of pivot joints, the pivot axis of the first pivot joint is at an angle to the longitudinal axis of the end portion, and the second pivot axis is at an angle to the suction plane.

Thanks to the first pivot connection with the pivot axis, angled to the longitudinal axis of the end portion, the nozzle head can be moved to a variety of convenient positions to facilitate cleaning of walls and horizontal surfaces at high heights.

Thanks to the second axis of rotation, located at an angle to the suction plane, the user can position the nozzle head in a wide range of angular positions relative to the rigid adapter or hose, choosing the most suitable position for a specific task.

It is preferable to position the first axis of rotation relative to the longitudinal axis of the end portion at an angle of 20 to 60 °.

It is preferable to position the second axis of rotation relative to the suction plane at an angle of 20 to 70 °.

It was experimentally established that the above values of the angles provide the most useful set of positions of the nozzle head. The criteria for evaluating the suitability of each angular position included the physical structure of the nozzle, the ease of use of the resulting head positions, and the useful difference between each resulting head position.

It is preferable to position the first pivot axis at an angle to the second pivot axis. This provides an even greater range of movement of the head relative to the end portion. It is more preferable to position the first pivot axis at an angle of 80 to 130 ° to the second pivot axis. This range of angles was established empirically to obtain the most useful set of positions of the nozzle head while maintaining compactness and manufacturability.

Preferably, the sum of the angle between the first pivot axis and the longitudinal axis and the angle between the second pivot axis and the suction plane is from 40 to 130 °. This combination of angles provides the most useful range of nozzle head positions.

Embodiments of the present invention will now be described with reference to the accompanying drawings.

1 shows a nozzle in accordance with a first embodiment of the present invention in a first configuration, in perspective;

figure 2 is the same side view;

figure 3 is the same, side view in section;

figure 4 - nozzle shown in figure 1, in the second configuration, a perspective view;

figure 5 is the same side view;

figure 6 - nozzle shown in figure 1, in the third configuration, a perspective view;

Fig.7 is the same side view;

on Fig - nozzle in accordance with the second embodiment of the present invention in a first configuration, side view;

in Fig.9 - nozzle shown in Fig.8 in the fourth configuration, a perspective view.

Figures 1-7 show a first embodiment of the present invention. The nozzle 10 shown in figures 1-3 contains a neck 11 and a head 12. The neck 11 contains a curved middle section 14 and the end section 16.

The end portion 16 comprises a cylindrical portion 17 configured to connect to the output end of a rigid adapter or hose (not shown) of the vacuum cleaner. The end portion 16 has an axis X-X (FIG. 3) coinciding with the axis of the cylindrical part 17. In the cylindrical part 17 two diametrically opposite holes 16a are made. Holes 16a are configured to receive protrusions located on the outer wall of a rigid adapter or hose (not shown). This allows you to connect the nozzle 10 with a rigid adapter or hose by clicking.

The end portion 16 is connected to the middle portion 14 by a first pivot joint 18. The first pivot joint 18 comprises a first connecting member 18a at the end portion 16 and a second connecting member 18b at the middle portion 14. The second connecting member 18b is located inside the first connecting member 18a and is in contact with him. The inner surface of the second connecting element 18b is smooth for free passage of air inside the nozzle 10. The outer end of the first connecting element 18a abuts against an annular protrusion 18c. An annular protrusion 18c is located at the inner end of the second connecting element 18b and protrudes in a radial direction from the middle portion 14. In the groove of the second connecting element 18b there is a metal latch 18d, which fastens the first and second connectors 18a and 18b, allowing their mutual rotation.

The first pivot joint 18 has a first pivot axis X'-X '. Thus, the first and second connecting elements 18a and 18b are rotatable relative to each other about the first axis X'-X '. In the mutual rotation of the first and second connectors 18a and 18b, the middle portion 14 rotates relative to the end portion 16 about the first axis X'-X '. The first axis of rotation X'-X 'is located relative to the axis X-X of the end portion 16 at an angle α. In this embodiment, the angle α is 22.5 °.

The first rotary joint 18 comprises a first engagement means. The first engagement means allows the first connecting element 18a to be held in several separate angular positions relative to the second connector 18b. The first engagement means comprises a protrusion 18e mounted on the second connecting element 18b, and several recesses 18f made in the first connecting element 18a. In this embodiment, there are four recesses 18f. The recesses 18f are evenly distributed around the pivot axis X'-X 'of the first pivot joint 18. Thus, the recesses 18f are arranged relative to each other with an angular pitch of 90 °. The protrusion 18e is arranged to fit into each recess 18f to hold the first and second connecting elements 18a, 18b in a predetermined position relative to each other.

The head 12 of the nozzle 10 comprises an upper surface 12a and a lower flat surface 12b. In the lower flat surface 12b there are two suction openings 20a and 20b. Suction openings 20a and 20b are located in the same suction plane Y-Y, i.e. the lower flat surface 12b is located in the suction plane Y-Y, and suction openings 20a and 20b are formed in this surface. On the lower flat surface 12b is located a means for collecting fluff. A bristle 24 hangs from the edge 12 from the bottom surface 12b, which surrounds the suction holes 20a and 20b.

A second pivot joint 26 connects the head 12 to the middle portion 14. The construction of the second pivot joint 26 is similar to that of the first pivot joint 18. The second pivot joint 26 includes a third coupling 26a located at the proximal end of the head 12 and a fourth coupling 26b located on the middle section 14. The third connecting element 26a is located outside the fourth connecting element 26b in contact with it. The end of the third connecting element 26a abuts against an annular protrusion 26c, which is located at the proximal end of the fourth connecting element 26b and protrudes radially from the middle portion 14. In the groove of the fourth connecting element 26b there is a metal latch 26d that fastens the third and fourth connecting elements 26a and 26b, allowing their mutual rotation.

The second pivot joint 26 has a second pivot axis Y'-Y '. Thus, the third and fourth connecting elements 26a and 26b are rotatable relative to each other about the second axis Y'-Y '. When the third and fourth connecting elements 26a and 26b are mutually rotated, the head 12 rotates relative to the middle portion 14 about the second axis Y'-Y '. The second axis of rotation Y'-Y 'is located at an angle β to the suction plane Y-Y. In this embodiment, the angle β is 37.5 °.

The second rotary joint 26 comprises second engagement means. The second engagement means allows the third connecting member 26a to be held in several separate angular positions with respect to the fourth connecting member 26b. The second engagement means comprises a protrusion 26e attached to the fourth connecting element 26b, and several recesses 26f made in the third connecting element 26a. In this embodiment, there are four recesses 26f. The recesses 26f are evenly distributed around the pivot axis Y'-Y 'of the first swivel joint 26. Thus, the recesses 26f are arranged relative to each other with an angular pitch of 90 °. The protrusion 26e is arranged to fit into each recess 26f to hold the third and fourth connecting elements 26a and 26b in a predetermined position relative to each other.

The middle portion 14 is bent so that the first and second axis of rotation X'-X 'and Y'-Y' are at an angle to each other. The first axis of rotation X'-X 'is located relative to the second axis Y'-Y' of rotation at an angle γ. In addition, both axes X'-X 'and Y'-Y' lie in the same plane. In this embodiment, the angle γ is 120 °.

The nozzle 10 may be connected to a rigid adapter or hose of a vacuum cleaner or other cleaning device (not shown). For this, the output end of the rigid adapter or hose is inserted into the end portion 16. The protrusions (not shown) at the output end of the rigid adapter or hose enter the holes 16a to prevent the nozzle 10 from disconnecting during operation.

1-3 show a nozzle 10 in a first configuration. This configuration is convenient, for example, for cleaning the upper surfaces of doors and provides compact storage of the nozzle 10. In the first configuration, both rotary joints 18 and 26 are in the first position.

However, the user can reposition the first and second pivot joints 18 and 26 to clean a plurality of surfaces. Figures 4 and 5 show the nozzle 10 in a second configuration. In a second configuration, the first pivot joint 18 is in a second position, and the second pivot joint 26 is in a first position. To move from the first position to the second, the first connecting element 18a should be rotated through an angle of 180 ° relative to the second connecting element 18b. To select this position, the user grabs the nozzle and rotates the middle portion 14 relative to the end portion 16. When the applied torque is sufficient to disconnect the protrusion 18e from the corresponding recess 18f, the middle portion 14 may rotate relative to the end portion 16 about the axis X'-X '. Then, the protrusion 18e can be rotated 90 ° to move to the next recess 18f. This operation can be repeated by turning the protrusion 18e another 90 ° before entering the recess 18f, diametrically opposite to the original recess 18f. The nozzle 10 now has a second configuration. With this configuration, the user can easily clean the top surfaces of cabinets and racks.

6 and 7 show the nozzle 10 in a third configuration. With this configuration, both swivel joints 18, 26 are in the third position (i.e., rotated 180 ° relative to the first position). Using the nozzle 10 in the third configuration, the user can easily clean vertical or almost vertical surfaces, such as blinds and walls.

Intermediate positions between the first and second positions may also be selected. These additional provisions allow you to deflect the nozzle head across the axis of the rigid adapter or hose. This allows the user to clean hard-to-reach areas, such as the corners of a room or cabinet.

Figs. 8 and 9 show a second embodiment of the invention. The design of the nozzle 100 is similar to that of the nozzle 10 according to the first embodiment of the invention. The nozzle 100 comprises a neck 111 and a head 112. The neck contains a curved middle portion 114 and an end portion 116. The end portion 116 comprises a cylindrical portion 117 for connection to a rigid adapter or hose of a vacuum cleaner or other cleaning device.

The nozzle has a first pivot connection 118. The first pivot connection 118 has a first pivot axis X ″ - X ″, which is angled with the axis X-X of the end portion 116 coaxial to the cylindrical portion 117. In this embodiment, the angle α ′ between the first axis X '' - X '' of rotation and the axis X-X of the end portion 116 is 50 °.

In this embodiment, the head 112 is made in the form of devices for processing slots. In other words, head 112 comprises an elongated cone-shaped portion 112a. At the far end of the head 112, a suction hole 112b is provided, which is located in the suction plane Y-Y.

The head 112 is connected to the middle portion 114 by a second pivot joint 126. The second pivot joint 126 is similar to the second pivot joint 26 according to the first embodiment. The second pivot joint 126 has a second pivot axis Y ″ - Y ″, which is positioned at an angle to the suction plane Y-Y. The angle β ′ between the second pivot axis Y ″ - Y ″ and the suction plane Y-Y is 60 ° in this embodiment.

The middle portion 114 couples the first and second connecting members 118 and 126. In this embodiment, the angle γ ′ between the first pivot axis X "-X" and the second pivot axis Y "-Y" is 90 °.

The nozzle 100 may be connected to a rigid adapter or hose (not shown) and used similarly to the nozzle 10 of the first embodiment. However, combinations of angles α ', β' and γ 'in this embodiment of the invention allow different positions of the head 112 relative to the axis of the rigid adapter or hose. 9 shows a nozzle 100 in a fourth configuration. In the fourth configuration, both swivel joints are in intermediate positions relative to the first and second positions shown in FIGS. 1-7 and corresponding to the first embodiment of the invention. This position allows you to place the head 112 of the nozzle 100 in hard-to-reach areas. In addition, the head 112, which is a slit handling device, allows you to clean surfaces that are difficult to brush with, such as in cramped areas such as a footwell in a car.

Other embodiments of the invention will be apparent to those skilled in the art. For example, a nozzle may contain more than two rotary joints. It is necessary that there are at least two swivel joints and one of them must have a rotation axis located at an angle to the axis of the end portion of the nozzle.

In addition, two swivel joints can be different and contain rods, universal joints, etc.

In addition, the number of suction openings can be any. If there are several holes, they may not lie in the same plane.

The nozzle head can be not only brush or made in the form of devices for processing cracks, but also in any suitable shape. For example, it can be made in the form of a brush for stairs, a scraper or other cleaning device.

The angles α, α ', β and β' may take values different from those indicated in the described embodiments of the invention, and may be changed independently from each other in accordance with the specific requirements for the design of the nozzle. It is only required that the angles α, α ', β and β' do not take the values 0 °, 90 °, 180 ° or 270 °. In addition, the angles γ and γ 'may not be equal to 90 ° or 120 ° and take any suitable values.

The nozzle can also be used in a variety of cleaning devices, such as carpet brushes, vacuum cleaners, industrial suction devices, or vacuum tank cleaners. Nozzles can be used in any type of household vacuum cleaner, for example vertical, cylindrical, or portable stain cleaners.

Claims (13)

1. A nozzle for a cleaning device comprising a head with a suction hole located in the suction plane and a neck containing a middle portion and an end portion with a longitudinal axis for connecting to the output end of a rigid adapter or hose, the nozzle comprising a first swivel connection having a first rotation axis and located between the end and middle sections, and a second rotary connection having a second axis of rotation and located between the head and the middle section, and the end section and the head olneny for relative movement by means of rotary joints, the rotation axis of the first pivot connection arranged at an angle to the longitudinal axis of the end portion and the second pivot axis is positioned at an angle to the suction plane. 2. The nozzle according to claim 1, in which the first axis of rotation is relative to the longitudinal axis of the end portion at an angle from 20 to 60 °. 3. The nozzle according to any one of claims 1 or 2, in which the second axis of rotation is relative to the suction plane at an angle from 20 to 70 °. 4. The nozzle according to claim 1, in which the first axis of rotation is at an angle to the second axis of rotation. 5. The nozzle according to claim 4, in which the first axis of rotation is relative to the second axis of rotation at an angle from 80 to 130 °. 6. The nozzle according to claim 1, in which the first and second axis of rotation are located in the same plane. 7. The nozzle according to claim 1, in which the sum of the angle between the first axis of rotation and the longitudinal axis and the angle between the second axis of rotation and the suction plane is from 40 to 130 °. 8. The nozzle according to claim 1, in which the middle section is made curved. 9. The nozzle according to claim 1, in which the first swivel connection includes a first gearing means for holding the first swivel joint in at least one separate angular position. 10. The nozzle according to claim 9, in which the first means of engagement is arranged to hold the first rotary connection in one of four separate angular positions. 11. The nozzle according to claim 1, in which the second swivel connection includes a second means of engagement for holding the second swivel joints in at least one separate angular position. 12. The nozzle according to claim 11, in which the second engagement means is arranged to hold the second rotary joint in one of four separate angular positions. 13. A vacuum cleaner containing a nozzle according to any one of claims 1 to 12.

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