RU2637740C2 - Surface cleaning device - Google Patents

Abstract

FIELD: satisfaction of human life necessities.

SUBSTANCE: in the application, a surface cleaning device is described, comprising a rag platform (12) having a central link (32) on which the first side link (34) rotatable about the first axis (46) and the second side member (36 ), rotatable about the second axis (48), and having a fixing device (122) enabling the first side link (34) and the second side link (36) to be fixed to the central link (32) in a fixed angular position (88) in which the lower side (66) of the first side link (34), the lower side (50) of the central link (32) and the lower side (66) of the second side link (36) are at least approximately in the same plane, and also comprising a holder (18) holding the rag platform (12) and connected with the central link (32) rotatable about the third axis (100). In the first range of angular positions of the holder (18) relative to the central link (32), the holder (18) is not connected to the fixing device (122), and in the second range of angular positions, the holder (18) acts on the fixing device (122) and by rotating the holder (18) to the second range and/or in the second range of angular positions, fixation of the angular position of the first side link (34) and the second side link (36) on the central link (32) is removed.

EFFECT: improvement of performance.

36 cl, 14 dwg

Description

The invention relates to a device for cleaning surfaces, containing a platform for rags.

A similar device is used to clean surfaces such as floor surfaces with a textile rag.

DE 102007008173 B3 discloses a free-standing floor cleaning device having an elongated handle and a platform defining a support plane and intended for fixing the cleaning element, the elongated handle being articulated to the platform with a cardan joint that can rotate relative to the platform around two axes and in the vertical position of the device for mopping, in which it is oriented essentially perpendicular to the platform, is free-standing, and the platform has a swivel section, reclining removable from the supporting plane, which allows the cleaning element to be put on the platform and removed from the platform in the swivel section, the rotary section being locked in the supporting plane of the platform by means of a fixing device. A pusher is provided on the platform, with which an elongated handle is connected at its end. When the handle is tilted in the plane in which the direction of movement of the pusher passes, with the handle being brought out of a vertical position perpendicular to the supporting plane of the platform, the pusher opens the locking device.

The basis of the invention was the task of creating an appropriate device for cleaning surfaces, which with a compact design would be easy to handle.

In accordance with the invention, this problem is solved in the device for cleaning surfaces indicated at the beginning of the description due to the fact that it comprises a rag platform having a central link on which, on opposite sides, a first lateral link is rotated around the first axis and a second lateral link , rotatable around the second axis, and having a locking device that provides the ability to fix the first side link and the second side link on the Central link in a fixed angular position in which ohm the lower side of the first side link, the lower side of the center link and the lower side of the second side link are at least approximately in the same plane; The surface cleaning device according to the invention also comprises a holder holding a rag platform and rotatably connected to a central link about a third axis, wherein in the first range of angular positions of the holder relative to the central link, the holder is not connected to the fixing device, but in the second range of angular positions the holder relative to the center link, the holder acts on the locking device and by turning the holder in the second range and / or in the second range not angular positions of the removed fixing the angular position of the first side link and the second lateral link to the central link.

In the aforementioned fixed angular position, the first lateral link, the central link and the second lateral link are at least approximately in the same plane. Due to this, the rag, which is held on the first side link and the second side link, can be fixed in a stretched condition on the platform. When using the device for cleaning surfaces according to the invention, the holder is in a first range of angular positions.

The rag can be easily removed from the platform if, for example, with the rag platform on the floor, the holder is moved to the second range of angular positions. In this case, the holder, in particular, mechanically acts on the locking device and thereby removes the fixation of the first side link and the second side link on the center link, i.e. unblocks the first and second side links.

After this, the first lateral link and the second lateral link will be able to rotate towards each other relative to the central link, which will lead to a decrease in the effective length of the rag platform. As a result, the rag platform can be separated from the rags lying on the floor. To do this, the user does not need to grab a rag with his hand.

By installing the first side link and the second side link with the possibility of rotation relative to the central link located between them, a symmetrical design of the rag platform is provided. This makes it easy to put the rags on the platform and to remove the rags from the platform.

In addition, it provides simplicity and a high degree of symmetry of the mechanism designed to lock the lateral links of the rag platform in a fixed angular position and to remove the fixation of this angular position. In particular, the articulation of the holder with the platform for the rag should provide for the possibility of their mutual rotation about only one axis.

According to the technical solution proposed in the invention, the holder, which is rotatably connected to the central link of the platform in order to enable the user to tilt the holder to the surface being cleaned at various angles, is connected with the fixing device. In the range of mounting angles of the holder relative to the central link, exceeding the limit angle achieved during normal operation by the device for cleaning surfaces, namely in the second range of angular positions of the holder, the holder can be used to remove the fixation of the angular position of the side links on the central link of the platform.

Rags are mounted on the platform in the same way. The rag is laid on the surface. In the unlocked state of the locking device, in which the first lateral link and the second lateral link are folded down relative to the central link, the platform is placed on a rag and then the central link is pressed against the rag. When the holder is transferred to the first range of its angular positions relative to the central link, the lateral links occupy a fixed angular position in which they are fixed on the central link.

It is advisable that the first and second axis of rotation pass parallel to each other. This allows you to implement the design of the platform for a rag with a high degree of symmetry, which facilitates the management of the device.

It is advisable that the third axis of rotation was oriented across, in particular perpendicularly, the first axis of rotation and / or the second axis of rotation. This allows a simple way to use the holder with its ability to rotate on the Central link also to remove the fixation of the lateral links located in a fixed angular position.

It is advisable that the holder has an extension of the holder. In this case, the operator through the angular position of the holder on the Central link can set the angle of inclination of the extension to the surface being cleaned. This ensures ease of control of the device with its high adaptability. Also, the operator, moving the holder by means of its extension cord, into the second range of its angular positions can easily remove the fixation of the lateral links located in their fixed angular position.

It is advisable that the boundary angle separating the second range of angular positions from the first range of angular positions and measured between the extension of the holder and the lower side of the Central link, was at least 75 °. For example, this boundary angle may be in the region of at least 80 ° or, for example, in the region of at least 90 °. The boundary angle is the angle of the position of the holder relative to the central link, which is usually not reached during operation of the device for cleaning surfaces, since this angle is too large for the device to be conveniently operated.

In particular, the first range of angular positions of the holder is the operating range of the surface cleaner in which the surface to be cleaned, in particular wiped, is a surface cleaner.

In one embodiment, the sockets for the respective hooks of the locking device are located on the first side link and on the second side link, and when the hook enters the corresponding socket, the corresponding side link is locked in a fixed angular position. This makes it easy to lock the first side link and the second side link, achieved in their fixed angular position on the center link.

In particular, when the side link is in a fixed angular position, the hook is locked in its corresponding slot, thereby achieving reliable locking of the side link, allowing the user to work with the device for cleaning surfaces.

In a particularly preferred embodiment of the invention, there is provided a linkage mechanism located on a central link and comprising a first beam mounted to rotate about a fourth axis and a second beam mounted to rotate around a fifth axis, and in a second range of angular positions (of a holder on a central link ) the holder acts on the first beam and the second beam, causing them to rotate. The first beam and the second beam are movable elements that serve to lock the first side link and the second side link on the Central link in a fixed angular position. Due to the corresponding movement of these elements initiated by the holder, said locking can be removed, i.e. the holder drives the rocker arms to disengage the corresponding side links. In this embodiment, simplicity and compactness of the design are ensured.

It is advisable that the linkage mechanism rests on a spring device, the elastic force of which the first beam and the second beam are pressed into the locking position, which ensures the lateral links are locked in a fixed angular position, and the spring force of the spring device is overcome by means of the holder to move the rocker arms from this fixing position. Due to the spring force of the spring device, locking of the locks locking the side links in a fixed angular position is easily achieved. This lock, in turn, is easily removed by opening the locked locks with the holder when it is rotated into the second range or in the second range of angular positions.

In one embodiment, the spring force of the spring device acts in a direction extending at least approximately parallel to the first axis of rotation and / or the second axis of rotation and / or across the third axis of rotation, in particular at least approximately perpendicular to it . This ensures the simplicity and compactness of the design of the device for cleaning surfaces. Moreover, the expression “at least approximately” (in particular with respect to the characteristic “in parallel”) means “strictly parallel” or “at a small acute angle, for example, less than 20 °.

The simplicity of the design is achieved if the fourth axis of rotation and the fifth axis of rotation are at least approximately parallel to each other.

In this case, it is also advisable that the fourth axis of rotation and the fifth axis of rotation are oriented across the first axis of rotation and / or the second axis of rotation and, in particular, across the third axis of rotation. This ensures the simplicity and compactness of the design.

In one embodiment of the invention, the first rocker and the second rocker are connected by a jumper, which, in particular, is stationary on one of the first and second rockers and rests with the possibility of rotation on the other of the first and second rockers. By means of a jumper, the first beam and the second beam are mechanically connected to each other. Due to this, acting on only one jumper, in particular, in the area of the spring device, it is possible to fix the side links in a locked state or to remove the side links from a locked state. For example, the action on the jumper, created on one side by a spring device by appropriate movement or application of force and transmitted jointly to the first and second rockers, fixes the lateral links of the rag platform in a locked state, and the effect created by the holder on the opposite side of the jumper with overcoming the elastic force spring device, removes the above locked state, i.e. frees the side links.

In particular, in the second range of angular positions, the holder acts on the jumper due to mechanical contact. For this, a corresponding pressure member may be located on the holder.

It is advisable that the casing is located on the central link, closing the locking device and the pivot bearing, allowing the holder to rotate on the central link. This ensures the simplicity of the design proposed in the invention of a device for cleaning surfaces, as well as the effective protection of its components from pollution and mechanical stress.

In one embodiment, the first lateral link and / or the second lateral link are trapezoidal in the region of their respective ends. This ensures the ease of entry of the side link, in particular, in the pocket of the rag.

For the same reason, it is advisable that the first lateral link and / or the second lateral link have sliding ribs located at a distance from each other and provided for sliding with their lower side over the rag area from the lower side in the region of their ends. Thanks to the sliding ribs, the effective sliding surface is reduced, which facilitates the entry of the side link into the corresponding rag pocket.

In one embodiment of the invention, the holder comprises a first part resting on the central link and a second part mounted on the first part with the possibility of rotation relative to it, the corresponding axis of rotation, i.e. the axis of rotation of the second part relative to the first, is oriented across the third axis of rotation. The first part and the second part are made, for example, in the form of tubular elements. The presence of an additional axis of rotation expands the operator's ability to handle the device.

The device for cleaning surfaces according to the invention can be made in the form of a device for cleaning surfaces, for example floors, using a fluid, for example steam, supplied through a rag platform to a cleaning surface and / or to a rag held on the platform. This allows for efficient surface cleaning.

In particular, a nozzle device is provided by which fluid is supplied to a rag held on the platform. The supplied fluid is a cleaning medium, for example steam. This allows you to wet the rag. Thanks to this, the best cleaning result is achieved with a high level of user-friendliness.

In particular, the nozzle device is located on the rag platform, for example, on the central link of the rag platform. This ensures, with ease of fluid supply, the effectiveness of the impact of the fluid on the rag held by the platform.

In this case, it is advisable that the holder was or contained a pipe having an internal space for supplying a fluid. In this case, a fluid, such as steam, can be supplied to the rag platform through the holder.

In an embodiment of the invention characterized by compact design, the shaft of the rotary support, by means of which the holder is mounted rotatably on the central link, is made in the form of a hollow shaft, the inner space of which is flowing for the fluid. In this case, the rotary support itself is part of the flow path directing the fluid flow.

It is advisable that the holder was located on the hollow shaft, at least approximately in the middle. Due to this, the fluid can be introduced into the hollow shaft, directing it in opposite main directions of flow, which, in turn, ensures uniform output of the fluid from the lower side of the rag platform. This also ensures high work efficiency and a high-quality cleaning result.

In this case, it is advisable that the holder has a fluid distributor for introducing fluid into the hollow shaft in the first main flow direction and different from the first, in particular opposite to it, second main flow direction. The fluid distributor can be simple in the form of a partition separating the first chamber and the second chamber from each other, and through the first chamber, the fluid is introduced into the first region of the hollow shaft, and through the second chamber into the second region of the hollow shaft.

It is also advisable that the first socket and the second socket spaced from it are located on the central link, designed to install a hollow shaft and capable of passing a fluid flow through it to the lower side of the central link. This ensures compact design. In addition, this ensures a uniform flow of fluid to the underside of the rag platform.

In particular, through holes formed in the central link are aligned with the first and second sockets for mounting the shaft. Due to this, the fluid can be directed to the lower side of the Central link through the socket for installing the shaft.

In this case, it is advisable that the first and second jacks for installing the shaft were connected to the Central link, and between the corresponding socket for installing the shaft and the Central link should be located seal. This provides a predetermined, hermetically sealed flow path for directing a fluid, in particular steam, through the holder to the underside of the rag platform.

In one embodiment of the invention, a first protrusion is provided on the central link from the side of the first lateral link, and a second protrusion from the side of the second lateral link. The first protrusion and the second protrusion have a width smaller than the corresponding one, i.e. measured in the same direction, the width of the central link outside of these protrusions. Due to the presence of protrusions, it is possible in a simple manner to provide a fluid tight seal between the center link and the side links, virtually eliminating the flow of fluid from the lower side to the upper side of the rag platform. Due to the protrusions, it is possible to realize a partial overlap between the central link and the corresponding side links.

It is advisable that the first axis of rotation passes through the first protrusion, and the second axis of rotation through the second protrusion, and, in particular, on the corresponding protrusions are the details of the rotary supports, providing the ability to rotate the first side link and the second side link relative to the Central link, such as articulated fingers. This ensures a compact design and implements a high sealing effect.

In this case, it is also advisable to provide in the first side link a first recess made in the shape of the first protrusion, and in the second side link a second recess made in the form of a second protrusion, and when the side link is in a fixed angular position, the corresponding protrusion is located in the corresponding recess. Due to this, when the first side link and the second side link are outside the fixed angular position, the possibility of their rotation relative to the central link is easily provided, and when the first side link and the second side link are in the fixed angular position, a tight seal is made between the central link and the side links.

In particular, a seal is located on the corresponding protrusion and / or on the corresponding side link in the corresponding recess, to which, when the side link is in a fixed angular position, the corresponding protrusion and / or the corresponding side link are adjacent. The corresponding seal is made, for example, in the form of a labyrinth seal. This provides a simple way to automatically form a seal between the articulated links of the rag platform when the lateral links reach a fixed angular position.

It is advisable that the central link and / or the first lateral link and / or the second lateral link have channels on their lower side for directing the fluid. Due to this, a uniform flow of fluid is achieved on the surface of the platform.

During operation of the surface cleaning device, the rag is located on the rag platform. It is advisable that the rag has a first pocket for the first side link and a second pocket for the second side link spaced from it. Due to this, a rag made, in particular, of textile material, for example microfibre, when the side links are in a fixed angular position, is held on the platform in a stretched state.

The rag is easily fixed on the platform: when the first side link and the second side link exit from a fixed angular position, these side links rotate, or recline, downward relative to the central link, as a result of which the rag platform decreases in length. Then, the first lateral link and the second lateral link of the platform are inserted into the respective pockets of the rag and, pressing the central link to the rag, the lateral links are brought into a fixed angular position. When the holder is rotated to the first range of angular positions, the side links are locked in this fixed angular position.

The surface cleaning device of the invention is preferably used with a steam cleaner. At the same time, the device for cleaning surfaces according to the invention can in principle be used without affecting the surface to be cleaned by a fluid.

For a more detailed disclosure of the invention, the following is a description of preferred options for its implementation, illustrated by the drawings, which show:

in FIG. 1 is a perspective view of a surface cleaning device according to the invention in one example of its implementation with a rag attached to it;

in FIG. 2 is a fragment of FIG. 1 cleaning device without a rag with a rag platform and holder;

in FIG. 3 is a bottom view of the rag platform shown in FIG. 2;

in FIG. 4 is a plan view of the rag platform shown in FIG. 2, without casing;

in FIG. 5 is a sectional view taken along line 5-5 of FIG. four;

in FIG. 6 is a sectional view taken along line 6-6 of FIG. four;

in FIG. 7 is a sectional view taken along line 7-7 of FIG. four;

in FIG. 8 is a sectional view taken along line 8-8 of FIG. 7;

in FIG. 9 is an exploded view of the holder and rag platform shown in FIG. four;

in FIG. 10 is a perspective view similar to FIG. 4, the holder being in a first range of angular positions relative to the rag platform;

in FIG. 11 is a top view of a rag platform with a local cut;

in FIG. 12 is a view similar to FIG. 11, the holder being in a second range of angular positions;

in FIG. 13 is a perspective view of a rag platform with a holder, the holder being in a second range of angular positions, and the side links are folded down relative to the center link; and

in FIG. 14 is a view similar to FIG. 13, but with a casing, when entering the side links into the pockets of the rag.

In one embodiment shown in FIG. 1-14, the surface cleaning device of the invention, indicated by the number 10, comprises a rag platform 12 on which a (cleaning) rag 14 is attached. The rag platform 12 is held onto the extension 16 by the holder 18. The holder 18 is connected to the platform 12 for rags with the possibility of rotation relative to it.

The extension cord 16 is made, for example, in the form of a pipe. The holder 18 is fixed on the extension 16 using a detachable connection. For this, a connecting device 20 is provided, including, for example, a bayonet connection.

The extension cord 16, in turn, is fixed, in particular, by a detachable connection to the handle 22. The operator holds the device 10 for cleaning surfaces by the handle.

The extension cord 16 is fixed on the handle 22, in particular by means of a detachable connection, for which a connecting device 24 is provided. The connecting device 24 is made, for example, in the form of a bayonet lock.

In one embodiment, one or more controls 26, such as one or more switches, are located on handle 22. In particular, if the surface cleaning device 10 is configured to discharge a fluid, in particular steam, by means of one or more control bodies 26, a fluid supply can be turned on.

In one embodiment of the invention, the surface cleaner has a connection member 28 for supplying fluid. By means of this connecting element 28, the surface cleaning device 10 can be connected, for example, to a steam cleaner.

In one embodiment of the invention, the connecting element 28 is made in the form of a flexible hose 30. This hose 30 is attached to the handle 22. Through the hose 30, a fluid is introduced into the surface cleaner, in particular steam, the flow of which can pass through the handle 22 inside it, then through the extension pipe and through the holder 18 to the rag platform.

The rag platform 12 comprises a central link 32, to which the first lateral link 34 is attached to the left, and the second lateral link 36 to the right. The holder 18 is located on the central link 32.

The central link 32 has a first protrusion 38 corresponding to the first side link 34, and on the opposite side, a second protrusion 40 corresponding to the second side link 40. The first protrusion 38 and the second protrusion 40 have a width smaller than the width of the central link 32 outside the first protrusion 38 and the second protrusion 40. When viewed from above, the central link 32 with its protrusions 38, 40 has a cruciform shape.

The fingers 42a, 42b located on opposite sides are located on the first protrusion 38 (see, for example, FIG. 9). Accordingly, fingers 44a, 44b located on opposite sides are located on the second protrusion 40.

The fingers 42a, 42b define the first pivot axis 46, and the fingers 44a, 44b define the second pivot axis 48. The first rotation axis 46 and the second rotation axis 48 extend parallel to each other. In addition, they are oriented parallel to the lower side 50 of the center link 32 (or the corresponding lower side 50 of the flat envelope surface).

The first side link 34 has sockets 52a, 52b for accommodating the fingers 42a, 42b. Accordingly, the second side link 36 has slots 54a, 54b for accommodating the fingers 44a, 44b. Due to this, the first side link 34 is mounted on the Central link 32 with the possibility of rotation around the first axis 46. In addition, the second side link 36 is mounted on the Central link 32 with the possibility of rotation around the second axis 48.

The first side link 34 has a first arm 56a, a second arm 56b located parallel to the first arm 56a at a distance from it, and a connecting jumper 58 connecting the first arm 56a and the second arm 56b to each other. Between the first shoulder 56a, the second shoulder 56b and the connecting jumper 58, a recess 60 (gap) is formed, aligned in shape with the first protrusion 38.

Thus, the first lateral link 34 is U-shaped in plan.

At the end 62, opposite the central link 32, the first lateral link 34 has a trapezoidal shape; at this end 62, the first lateral link 34 is made with bevels (which are indicated by 64 in FIG. 9). This facilitates the insertion of the side link into the pocket of the rag 14.

The first lateral link 34 in the area of its end 62 has on the lower side 66 of the ribs 68 of the slide. Sliding ribs are located at a distance from each other and are oriented perpendicular to the axis of rotation 46, 48. They have a lower sliding surface 70. This lower sliding surface, sliding along the surface while advancing the side link into the pocket of the rag 14, facilitates, like the bevels 64, the entry of the side link into the rag.

The first shoulder 56a at the end 72, opposite the end 62, has a chamber 74. This chamber 74 has a cavity 76 open through an opening 78 towards the center link 32.

Below the cavity 76, a socket 52a is located along the axial height.

On the second arm 56b, in the region of its end opposite the end 62, an elevation 80 is made, in the lower region of which an axle 52b is located in the axial direction (height) of the region. The elevation 80 corresponds in shape to the chamber 74. The elevation 80 is located at a distance from the chamber 74, with a recess 60 located between them.

The chamber 74 and the elevation 80 have a greater axial height than the rest, located outside the elevations 80 and the chamber 74, the section of the first side link 34. This section 82 of the first side link 34, located outside the elevations 80 and the chamber 74, smoothly, without any or edges and faces, goes into chamber 74 and elevation 80.

In its axial height, the chamber 74 and the elevation 80 are aligned with the casing 84 mounted on the central link 32. In FIG. 4 and in FIG. 10-13 are images in which the casing 84 is removed.

The second side link 36 is identical to the first side link 34, and it is mounted on the Central link 32 with the possibility of rotation around the second axis 48 is mirror symmetric to the first side link 34.

A seal 86 is also provided (see, for example, FIG. 7), which serves to seal the interface between the side link 34 (or 36) and its corresponding protrusion 38 (or 40).

While in a fixed angular position 88 shown, for example, in FIG. 5-8, the first lateral link 34 and the second lateral link 36 are fixed to the central link 32, as explained in more detail below; in this case, a locked state is achieved in which the first lateral link 34 and the second lateral link 36 are fixed and fixed to the central link 32. In this fixed angular position 88, the lower side 66 of the first lateral link 34 and the second lateral link 36, as well as the lower side 50 of the central links 32 are in the same plane (at least along a flat envelope surface corresponding to the lower sides 50, 66); thanks to this, the platform 12 for rags on its lower side forms a single plane, ensuring the readiness of the proposed device for cleaning surfaces for work.

The seal 86 prevents the penetration of fluid at the protrusions 38, 40 from the bottom, i.e. from the bottom of the rag platform 12 (formed by the lower sides 50, 66), up.

In one embodiment, the seal 86 is in the form of a labyrinth seal.

For example, on the corresponding side link 34, 36 along the contour of the recess 60 there is a groove 90 (see Fig. 7 and 9). On the corresponding protrusion 38, 40 of the central link there is a ridge 92 made under the groove, which, in the fixed angular position 88, enters the groove 90.

In this case, the first lateral link 34 and the second lateral link 36 are made with respect to the central link 32 having protrusions 38, 40, so that they (side links) are always under the first 38 and second 40 protrusions, respectively. In an angular position other than the fixed angular position 88, the lateral links are at a distance from the first protrusion 38 and the second protrusion 40 (see, for example, FIG. 13), and when translating the lateral links into the fixed angular position 88 relative to the central link, the groove 90 on the first lateral link 34 and the second lateral link 36 moves in the direction of the ridge 92, which is respectively on the first protrusion 38 and the second protrusion 40, and when the lateral link reaches a fixed angular position 88, the ridge is immersed in the groove with the image A seal is formed to prevent passage between the side link and the corresponding protrusion of the fluid.

In this case, a ridge 92 of elastic material, for example rubber, may be provided.

As an alternative to the above option, or in addition to it, the ridge may be located on the first side link 34 and the second side link 36, and the first protrusion 38 and the second protrusion 40 may have a groove on the side facing the corresponding side link 34, 36 under this crest.

As mentioned above, the first side link 34 and the second side link 36 are made the same and are mounted mirror symmetrically on the central link 32.

The holder 18 comprises a first part 94 and a second part 96. The first part 94 is pivotally pivotally coupled to the rag platform on the upper side of the center link 32 by a pivoting support 98. The first part 94 of the holder, and accordingly the holder 18 itself, can rotate relative to the Central link 32 around the third axis 100 (see, for example, Fig. 2). The third axis of rotation 100 extends across the first axis of rotation 46 and the second axis 48 of rotation, in particular perpendicular to them. The third axis of rotation 100 runs parallel to the lower side of the rag platform 12 (or the flat envelope surface of the lower side) when the lateral links are in a fixed angular position 88.

In particular, the central link 32 is connected to the holder 18 with the possibility of rotation only around the third axis 100, i.e. the only degree of freedom in the joint between the central link 32 and the holder 18 is the possibility of their rotation relative to each other around the third axis 100. The third axis of rotation 100, in turn, is, in particular, stationary relative to the central link 32.

The first part 94 comprises or is a tubular element 102 on which the shaft 104 is located. The shaft 104 is made in the form of a hollow shaft 106 and has an internal space 108, flowing for a fluid, i.e. capable of passing a fluid stream through itself.

The second part 96 is formed by a curved tubular element 110, to which an extension 16 is adjacent.

The tubular element 110 is hermetically connected to the tubular element 102. Fluid can be guided through the tubular element 110 and a connector 112 is provided that allows fluid to flow from the tubular element 110 to the tubular element 102. The connector 112 is provided with a seal 114.

The tubular element 110, and with it the extension 16, is rotatable relative to the tubular element 102 about an axis 116, which improves the accessibility to the surfaces to be cleaned during operation of the device of the invention. The axis of rotation 116 runs across the third axis 100 of rotation, in particular perpendicular to it.

The tubular element 102 is connected to the shaft 104 in the middle portion 118 of the latter. As described in more detail below, in the middle portion 118 of the shaft 104, there is also a pressing element 120, with which the holder can act on the locking device 122, which locks the side links 34, 36 in the fixed angular position 88 on the central link 32.

On the upper side of the center link 32 are a first socket 124a and a second shaft socket 124b spaced apart from it. Each of these sockets 124a, 124b has a recess 126 in which the shaft 104 is placed. When installed in the sockets 124a, 124b, the shaft 104 has the possibility of rotation (limited rotation, i.e. rotation), and this possibility of rotation of the shaft 104 determines the third axis 100 turns.

The first shaft mounting socket 124a and the second shaft mounting socket 124b are also made in the form of flow elements capable of passing through a fluid supplied from the shaft 104 (when it is made in the form of a hollow shaft 106) and guided through the central link 32 to the lower side 50 last.

To this end, a center hole 32a is provided with a through hole 128a aligned with the first shaft mounting socket 124a and a through hole 128b aligned with the second shaft mounting socket 124b. The corresponding through holes 128a, 128b pass through the center link between its lower side 50 and the upper side.

Each shaft mounting socket 124a, 124b has a flow cavity 130 in communication with a corresponding hole 128a, 128b and with the interior 108 of the hollow shaft 106.

The tubular element 102, for example, is connected to the hollow shaft 106 as a unit with it. In one embodiment of the invention, a fluid distributor 131 is disposed in the tubular member 102 to separate, in particular evenly distributing the fluid passing through the tubular member 102 into flows moving in two directions 132a, 132b, namely, to the right and left of the middle portion 118 of the hollow shaft 106 in the inner space 108 of the latter. The fluid distributor 131 is formed, for example, by a baffle 134 in the flow path of the tubular member 102. This baffle 134 also provides rotation of the fluid flow.

The hollow shaft 106 is rotatably mounted in the recesses 126 by means of corresponding seals 136a, 136b. This ensures the tightness of the seal for introducing fluid through the hollow shaft 106 into the corresponding flow cavity.

A seal 138 is disposed between the shaft mounting receptacle 124a, 124b and its corresponding bore 128a, 128b, thereby achieving a tight seal and allowing fluid to flow through the corresponding flow cavity 130 to the lower side of the center link 32.

On its lower side (Fig. 3), the rag platform 12 is provided with channels 140 for distributing the fluid. In particular, at least one channel 142 extends from the openings 128a, 128b.

The device 10 for cleaning surfaces is a device for cleaning surfaces using a fluid. A nozzle device 139 is formed in it, by means of which a fluid medium, for example steam, is supplied to the rag 14 held on the platform.

In this exemplary embodiment, this nozzle device 139 includes openings 128a, 128b, a hollow shaft 106, and sockets 124a, 124b for mounting it. Fluid enters this nozzle device 139 through a distributor 131.

The locking device 122 is located on the upper side of the center link 32. The locking device 122 comprises a link mechanism 144. This link mechanism 144 comprises a first beam 146 mounted on the center link 32 via a first pivot bearing 148 that can rotate around the fourth axis 150. The fourth axis the rotation is oriented across the second axis 48 of rotation, in particular perpendicular to it.

The first rocker 146 has a first arm 152a and a second arm 152b. In this case, the first rocker 146 is mounted rotatably on the central link 32 of the rag platform in the transition area between the first shoulder 152a and the second shoulder 152b.

A hook 154 is provided on the second shoulder 152b in a hook shape. In the corresponding chamber 74 of the second side link 36, a nest 155 is located (see FIG. 11) for this hook 154. When entering this nest 155, i.e. cohesion with its wall, the hook 154 provides locking of the second side link 36 in a fixed angular position 88.

By turning the first rocker 146 in the direction of exit from the chamber 74, this lock can be removed.

In addition, on the central link 32, on the upper side, there is a second beam 156 mounted by a second pivot bearing 158. This second beam 156 is associated with the first side link 34. The fifth pivot axis 160 (second beam) is parallel to the fourth pivot axis 150.

The second rocker 156 also has a hook made essentially the same as the hook 154 of the first rocker 146. It is designed to lock the first side link 34 on the central link 32 due to the engagement with the wall of the corresponding socket of the chamber 74, available on the first side link 34.

On the first beam 146, namely on its first shoulder 152a, there is a jumper 162. This jumper, for example, is made integrally with the first arm 152a or is fixedly connected to it by other means of connection.

The jumper 162 is pivotally connected to the second beam 156 by means of a pivot joint 164 located on the second beam 156. By means of a jumper 162 and a pivot hinge 164, the first beam 146 and the second beam 156 are connected (kinematically) to each other.

The lever mechanism 154 is supported by a spring device 166. For example, the spring device 166 comprises a compression spring which abuts the central link 32 on one side 168 and abuts the jumper 162 of the lever mechanism 144 on the opposite side 170. The spring device 166 presses on the jumper 162 and thereby, the first rocker 146 and the second rocker 156 are pressed into a position in which the hook 154 is located in its corresponding slot 155 with the locking of the corresponding side link.

To remove this stop, the elastic force of the spring device 166 must be overcome. When the corresponding compression spring of the spring device 166 is pressed towards side 168 by applying force to side 170, the first rocker 146 and the second rocker 156 can rotate so that both hooks 154 are disengaged with the corresponding slots 155 and thus will be able to exit the chamber 74.

The direction 172 of the elastic force of the spring device 166 is at least approximately parallel to the first axis of rotation 46 and the second axis 48 of rotation.

Thus, the lateral links can be brought out of the fixed angular position 88 by applying a force acting on the bridge 162 in the direction opposite to the direction of action of the elastic force 172, i.e. direction from side 168 to side 170.

The pressure element 120 located on the holder 18, in particular on the shaft 104, when the holder 18 is in the corresponding angular position relative to the central link 32 can act on the jumper 162 due to mechanical contact, compress the spring of the spring device 166 and thereby actuate the lever mechanism 104, while turning the first beam 146 and the second beam 156 to ensure that they are removed from the locked state of the respective side links.

Moreover, the holder 18 has such dimensions with respect to the lever mechanism 144 that in the first range of angular positions (in this connection, see also Fig. 5), corresponding to the working angular range in which the holder and the platform for the rag can rotate relative to each other in the operating time of the device for cleaning surfaces so that the extension cord 16, and with it the holder, are in a certain range of tilt angles to the lower side of the rag platform 12, the holder 18 does not act on the lever mechanism 144.

In the second range of angular positions of the holder 18 relative to the central link 32, the holder acts on the linkage mechanism, and correspondingly turning the holder in the second range or in the second range of angular positions can move the linkage mechanism 144 and release the locking of the side links of the rag platform.

The boundary angle separating the second range of angular positions from the first range of angular positions is in the region of at least 75 °, in particular in the region of at least 80 °. This boundary angle is outside the normal operating range of the angular positions of the holder.

In FIG. 5, the angle 174 is indicated between the holder 18 and the lower side 50 of the central link 32. In the present exemplary embodiment, the angle 174 is in the first range of angular positions. By increasing this angle, the pressure member 120 may affect the jumper 162 and cause the rocker arm 146, 156 to move accordingly.

The rag platform 12 has a front side 176 and a rear side 178. The width of the central link 32 is measured between the front side 176 and the rear side 178. In the area of the protrusions 38, 40, the width of the central link is smaller.

A pivot bearing 98, allowing the holder 18 to pivot on the central link 32, is located in the middle between the front side 176 and the rear side 178.

A linkage 174 with a first beam 146 and a second beam 156 is located on a central link 32 between the pivot bearing 98 and the front side 176.

A casing 84 is mounted on the central link 32. The casing 84 covers both the pivot bearing 98 and the linkage 144, in particular protecting them from damage, contamination and other factors.

At the same time, the casing has a recess 180 (see, for example, Fig. 14), which allows the holder 18 to be rotated correspondingly on the central link 32 in an allowable angular range.

The casing 84 is designed so that when the lateral links 34, 36 are in a fixed angular position 88, the casing passes into the lateral links flush with their surface.

Proposed in the invention, a device for cleaning surfaces works as follows.

In one embodiment of the invention, the device for cleaning surfaces is made in the form of a nozzle, i.e. having a nozzle or nozzle for supplying a fluid, a cleaning device, in particular for wet cleaning floors. In this case, a fluid, such as steam, can also be supplied through the surface cleaner.

In principle, the surface cleaning device of the invention can be operated without supplying fluids, and then appropriate components for supplying fluid to the underside of the rag platform 12 should not be provided.

In normal cleaning operations, the rag 14 is held onto the rag platform 12. For this, the rag 14 has a first pocket 182a and a second pocket 182b spaced from it (FIG. 14). When cleaning surfaces, the first side link 34 is in the first pocket 182a, and the second side link 36 is in the second pocket 182b. The rag 14, in particular, is dimensioned with respect to the rag platform 12 such that, in a fixed angular position 88, the first side link 34 and the second side link 36 act as tensioning elements to stretch the rag.

In normal work on cleaning surfaces, the extension cord 16 is in the first range of angular positions, namely, at an angle 174 smaller than the boundary angle equal to, for example, 75 °. In the fixed angular position 88, the lateral links of the rag platform are locked with a locking device 122 with a lever mechanism 144. The hooks 154 in the respective chambers 74 are adjacent to the walls of the slots 155 there, thereby locking the locks formed by the hooks and their sockets.

The spring device 166 holds the linkage in this locking state due to the first rocker 146 and the second rocker 156 being pushed by the spring device 166 into the corresponding locking position and a force is required to unlock the locked locks.

The fixed angular position 88 of the side links is shown, for example, in FIG. 10. In this drawing, the first side link 34, the center link 32 and the second side link 36 are oriented so that their lower sides are in the same plane.

On the edge of the side links 34 and 36, a seal is formed between the side links 34, 36 with their corresponding protrusions 38, 40, provided by the entrance of the corresponding ridge 92 into the groove 90.

A fluid, such as steam, can be supplied through an extension cord and a holder, for example, which is separated by a fluid distributor 131 in the hollow shaft 106 into flows directed in opposite directions. Further, the fluid moves through the hollow shaft 106 into the corresponding flow cavities 130 of the shaft seats 124a, 124b, and then passes through the central link 32 to its lower side 50.

Between the shaft mounting sockets 124a, 124b and the upper side of the central link 32 at the respective holes 128a, 128b there are corresponding seals 184, made in particular in the form of circular rings.

On the underside of the rag platform 12, fluid is distributed by respective channels 140, 142 over the surface of the rag 14 held on the platform.

To remove the rags, the holder 18 is transferred to the second range of angular positions, as a result of which the angle 174 is increased. This state is shown in FIG. 12. With this movement of the holder 18 about the third axis of rotation 100, the pressure member 120 acts on the jumper 162 and thereby causes the first rocker 146 and the second rocker 156 to rotate, accompanied by the release of the respective hooks 154 from the respective chambers 74. As a result, the locking of the side links is removed (FIG. . 12).

In the unlocked state, the first side link 34 and the second side link 36 can lean back. This is shown in FIG. 13. The rag 14 held on the platform (the rag is not shown in FIG. 13 for clarity of view) helps to lower the first side link 34 and the second side link 36 by turning the side links down with their gravity. In particular, if the rag 14 is wet, then its gravity is quite large.

If the rag 14 is near the floor surface, the rag 14 itself is separated from the platform 12 and the user does not need to take the rag 14 in his hands to remove it.

Then, another rag can be easily put on the platform, as shown in FIG. fourteen.

For this, a new rag 14 is placed on the base. When the first side link 34 and the second side link 36 are folded down, the rag platform 12 is inserted into a new rag 14, placing the first side link 34 and the second side link 36 between the rag pockets 182a, 182b. Then the central link 32 is pressed against the rag. In this case, the first lateral link 34 and the second lateral link 36 are included in their respective pockets 182a, 182b.

This is facilitated by the trapezoidal shape of the lateral links 34, 36 at the ends and the presence of sliding ribs 68.

Then the lateral links are locked in a fixed angular position 88, for which the holder 18 is rotated, transferring it from the second range of angular positions to the first range of angular positions and thus reducing the angle of inclination to the lower side 50 of the central link 32.

Proposed in the invention, the device 10 for cleaning surfaces is characterized by a simple and compact design. It allows the operator to easily change the rag without grabbing it with his hands.

The device proposed in the invention also provides the efficiency of supplying a fluid (for example, steam) to the lower side of the rag platform 12, and hence to the rag 14 itself.

The presence of a casing 84 provides a secure placement in the interior of both the swivel support 98 and the linkage 122.

The use of the hollow shaft 106 provides, with structural simplicity, an optimized fluid supply.

Reference List

10 example of a device for cleaning surfaces

12 rag platform

14 rag

16 extension cord

18 holder

20 connecting device

22 pen

24 connecting device

26 governing bodies

28 connecting element

30 hose

32 central link

34 first side link

36 second side link

38 first protrusion

40 second ledge

42a finger

42b finger

44a finger

44b finger

46 first axis of rotation

48 second axis of rotation

50 bottom side

52a socket

52b socket

54a nest

54b socket

56a first shoulder

56b second shoulder

58 connecting jumper

60 notch

62 end

64 bevel

66 bottom side

68 ribs

70 bottom sliding surface

72 end

74 camera

76 cavity

78 hole

80 elevation

82 plot

84 casing

86 seal

88 fixed angular position

90 groove

92 comb

94 first part

96 second part

98 swivel bearing

100 third axis of rotation

102 tubular element

104 shaft

106 hollow shaft

108 interior space

110 tubular element

112 connector

114 seal

116 rotation axis

118 middle section

120 push element

122 locking device

124a first shaft mount

124b second shaft mounting slot

126 notch

128a hole

128b hole

130 flow cavity

131 fluid distributor

132a side

132b side

134 partition

136a seal

136b seal

138 seal

139 nozzle device

140 channels

142 channels

144 linkage

146 first rocker

148 first pivot bearing

150 fourth axis of rotation

152a first shoulder

152b second shoulder

154 hook

155 socket

156 second rocker

158 second rotary support

160 fifth axis of rotation

162 jumper

164 swivel joint

166 spring device

168 side

170 side

172 direction of action of the force of elasticity

174 angle

176 front side

178 back side

180 notch

182a first pocket

182b second pocket

184 seal

Claims (38)

1. A device for cleaning surfaces, containing: - a rag platform (12) having a central link (32) on which, on opposite sides, a first side link (34) is rotated around a first axis (46), and a second side link (36) is rotated around a second axis (48) ), and having a locking device (122) that allows the first side link (34) and the second side link (36) to be fixed to the central link (32) in a fixed angular position (88), in which the lower side (66) of the first side link (34), the lower side (50) of the central link (32) and the lower side (66) of the second side link (36) are at least approximately in the same plane, and - a holder (18) holding the rag platform (12) and connected to the central link (32) with the possibility of rotation around the third axis (100), moreover, in the first range of angular positions of the holder (18) relative to the central link (32), the holder (18) ) is not connected with the fixing device (122), but in the second range of angular positions, the holder (18) acts on the fixing device (122) and by fixing the holder (18) in the second range and / or in the second range of angular positions, the fixing of the angular position is removed the first side link (34) and in the second side link (36) on the central link (32). 2. The device according to p. 1, characterized in that the first axis (46) of rotation and the second (48) axis of rotation are parallel to each other. 3. The device according to p. 1 or 2, characterized in that the third axis (100) of rotation is oriented across, in particular perpendicularly, the first axis (46) of rotation and / or the second axis (48) of rotation. 4. The device according to claim 1, characterized in that an extension (16) of the holder is located on the holder (18). 5. The device according to claim 4, characterized in that the boundary angle separating the second range of angular positions from the first range of angular positions and measured between the holder extension (16) and the bottom side (50) of the central link (32) is at least 75 °. 6. The device according to p. 1, characterized in that the first range of angular positions is the operating range of the device for cleaning surfaces. 7. The device according to p. 1, characterized in that on the first side link (34) and on the second side link (36) are nests (155) for the corresponding hooks (154) of the locking device (122), and at the entrance of the hook (154 ) into the corresponding socket (155), the corresponding lateral link is locked in a fixed angular position (88). 8. The device according to claim 7, characterized in that when the lateral link is in a fixed angular position (88), the hook (154) is locked in its corresponding slot (155). 9. The device according to p. 1, characterized in that it contains a lever mechanism (144) located on the Central link (32) and containing the first beam (146), mounted for rotation around the fourth axis (150), and the second beam ( 156), mounted to rotate around the fifth axis (160), and in the second range of angular positions, the holder (18) acts on the first beam (146) and the second beam (156), causing them to rotate. 10. The device according to p. 9, characterized in that the lever mechanism (144) is supported by a spring device (166), the elastic force of which the first rocker (146) and the second rocker (156) are pressed into the locking position, which ensures the locking of the lateral links in the fixed angular position (88), and in order to derive the rocker arm from this fixing position by means of the holder (18), the spring force of the spring device is overcome. 11. The device according to p. 10, characterized in that the spring force of the spring device (166) acts in the direction (172) extending at least approximately parallel to the first axis of rotation (46) and / or the second axis of rotation (48) , and / or across the third axis of rotation (100), in particular at least approximately perpendicular to it. 12. The device according to p. 9, characterized in that the fourth axis (150) of rotation and the fifth axis (160) of rotation are at least approximately parallel to each other. 13. The device according to claim 9, characterized in that the fourth rotation axis (150) and the fifth rotation axis (160) are oriented across the first rotation axis (46) and / or the second rotation axis (48) and, in particular, across the third axis (100) turning. 14. The device according to p. 9, characterized in that the first beam (146) and the second beam (156) are connected by a jumper (162), which, in particular, is stationary on one of the first (146) and second (156) beam and leans with the possibility of rotation on another of the first (146) and second (156) rocker. 15. The device according to p. 14, characterized in that in the second range of angular positions, the holder (18) acts on the jumper (162) due to mechanical contact. 16. The device according to claim 1, characterized in that on the central link (32) there is a casing (84) that covers the locking device (122) and the pivot bearing (98), allowing the holder (18) to rotate on the central link (32) . 17. The device according to claim 1, characterized in that the first lateral link (34) and / or the second lateral link (36) in the area of their respective ends (62) are made trapezoidal. 18. The device according to claim 1, characterized in that the first lateral link (34) and / or the second lateral link (36) have sliding ribs (68) located at a distance from each other on the lower side in the region of their ends (62) and provided for sliding with its lower side over the rag area. 19. The device according to claim 1, characterized in that the holder (18) comprises a first part (94) supported by a central link (32) and a second part (96) mounted on the first part (94) with a possibility of rotation relative to it moreover, the corresponding axis of rotation (116) is oriented across the third axis of rotation (100). 20. The device according to p. 1, characterized in that it is made in the form of a device for cleaning surfaces using a fluid supplied through the platform (12) for rags to the cleaning surface and / or to the rag held on the platform (14). 21. The device according to p. 20, characterized in that it contains a nozzle device (139), through which fluid is supplied to the rag (14) held on the platform (12). 22. The device according to p. 21, characterized in that the nozzle device (139) is located on the platform (12) for a rag. 23. The device according to p. 20, characterized in that the holder (18) is or contains a pipe (102; 110) having an internal space for supplying a fluid. 24. The device according to p. 20, characterized in that the shaft (104) of the rotary support (98), through which the holder (18) is mounted on the central link (32), can be rotated, made in the form of a hollow shaft (106), the inner space (108) which is flowing for a fluid. 25. The device according to p. 24, characterized in that the holder (18) is located on the hollow shaft (106), at least approximately in the middle. 26. The device according to p. 25, characterized in that the holder (18) has a distributor (131; 134) of fluid for introducing fluid into the hollow shaft (106) in the first main direction of flow and in a different direction from the first, in particular opposite to it , the second main direction of flow. 27. The device according to p. 24, characterized in that on the central link (32) there is a first socket (124a) and a second socket (124b) spaced from it, designed to install a hollow shaft (106) and capable of passing a fluid stream through itself to the bottom side (50) of the central link (32). 28. The device according to p. 27, characterized in that in the Central link (32) are formed through holes (128a; 128b), combined with the first (124a) and second (124b) sockets for installing the shaft. 29. The device according to p. 27, characterized in that the first (124a) and second (124b) sockets for installing the shaft are connected to the central link (32), and between the corresponding socket (124a; 124b) for installing the shaft and the central link (32 ) the seal (184) is located. 30. The device according to claim 1, characterized in that on the central link (32) from the side of the first side link (34) there is a first protrusion (38), and from the side of the second side link (36) - a second protrusion (40). 31. The device according to p. 30, characterized in that the first axis of rotation (46) passes through the first protrusion (38), and the second axis of rotation (48) passes through the second protrusion (40). 32. The device according to p. 30, characterized in that in the first side link (34) there is a first recess (60) made in the shape of the first protrusion (38), and in the second side link (36) there is a second recess (60), made in the form of a second protrusion (40), and when the side link is in a fixed angular position (88), the corresponding protrusion (38; 40) is located in the corresponding recess (60). 33. The device according to p. 32, characterized in that on the corresponding protrusion (38; 40) and / or on the corresponding side link (34; 36) in the corresponding recess (60) there is a seal (86) to which, when the side link is located in the fixed angular position (88), the corresponding protrusion (38; 40) and / or the corresponding side link (34; 36) are adjacent. 34. The device according to claim 1, characterized in that the central link (32) and / or the first lateral link (34) and / or the second lateral link (36) have channels (140; 142) on their lower side for directing the fluid . 35. The device according to claim 1, characterized in that the rag (14) has a first pocket (182a) for the first side link (34) and a second pocket (182b) spaced from it for the second side link (36). 36. The use of a device for cleaning surfaces according to one of the preceding paragraphs on a steam cleaner.

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