JP2014128776A - Tile carpet cleaning device, and tile carpet cleaning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tile carpet cleaning device in which a tile carpet is never damaged by brush, and a working efficiency is good.SOLUTION: A tile carpet cleaning device includes a cleaning tank 10 for holding liquid, an ultrasonic wave vibrating plate 20 provided at a bottom of the cleaning tank 10, and transfer means 30 for transferring a tile carpet by facing it to the ultrasonic wave vibrating plate 20 while immersing the tile carpet in the liquid. The transfer means 30 transfers the tile carpet so that at least a portion thereof passes through a position corresponding to the antinode in the stationary vibration generated between a liquid level and the ultrasonic wave vibrating plate 20. Furthermore, high pressure cleaning means 40 is included which contains a cleaning nozzle 41 for ejecting the liquid to the tile carpet cleaned in the cleaning tank 10.

Description

  The present invention relates to a cleaning device for cleaning tile carpets (tile carpets) that are used by laying them side by side on a floor surface. The present invention relates to a tile carpet cleaning apparatus.

To clean tile carpets (sometimes called "carpet tiles") that are often used in offices, bring the washing machine to the site with the tile carpet still laid on the floor. There is a method of cleaning (referred to as “on-location cleaning”) and a method of cleaning by bringing the tile carpet removed from the floor to another work site (referred to as “off-location cleaning”).
On-location cleaning is not suitable for nursing care sites because the floor remains slippery until it dries because moisture remains on the tile carpet immediately after the cleaning operation. In addition, water cannot be used on free access floors with underfloor wiring, such as computer rooms, and tile carpets cannot be washed sufficiently even with on-location cleaning.

On the other hand, off-location cleaning only removes the tile carpet from the floor at the site, and when removing the tile carpet, if another tile carpet is laid instead, the work can be carried out without trouble even at a site operating 24 hours a day. It can be carried out.
For example, Patent Documents 1 to 3 describe a cleaning apparatus that removes a tile carpet once from a floor surface of a laid building or the like and brings it to another work site to automatically and efficiently clean the tile carpet.
The cleaning device of Patent Document 1 sprays clean water on the tile carpet to pre-clean stains on the cleaning surface, sprays detergent on the cleaning surface, and rotates the three brushes forward and backward to stain the cleaning surface of the tile carpet. Rinse and clean, spray clean water with a predetermined amount of water and water pressure to wash away dirt, mud, sand, etc., remove moisture with a dehydrating roller, and suck moisture with a vacuum pump.

The cleaning device of Patent Document 2 sprays detergent on a tile carpet, jets a high-pressure cleaning liquid to the surface side of the tile carpet, jets high-pressure rinse water, and sucks moisture. In the cleaning device of Patent Document 2, by using a high-pressure cleaning liquid without using a brush, a tile carpet having a long bristle or a tile carpet having a pile is sufficiently washed with good finish without damaging the tile carpet. (Paragraph 0039).
The cleaning apparatus of Patent Document 3 irradiates ultrasonic waves after immersing a tile carpet in a cleaning liquid, sealing a cleaning tank and degassing. In the cleaning device of Patent Document 3, air existing inside the tile carpet is removed by deaeration, so that the cleaning liquid permeates into the tile carpet, thereby improving the cleaning performance. It is described that it can be done (paragraph 0006).

JP-A-9-285769 JP 2003-88824 A JP 2004-16847 A

In the cleaning device of Patent Document 1, since the brush is directly brought into contact with the surface of the tile carpet and rotated, it is difficult to remove dust and earth and sand entering the back, and the tile carpet is damaged when washed strongly. Especially, it is not suitable for carpets with long hairs and tile carpets with piles.
The cleaning devices of Patent Documents 2 and 3 are useful in that the tile carpet is not damaged by the brush.

However, in the cleaning apparatus of Patent Document 2, since cleaning is performed only with a high-pressure cleaning liquid, it is difficult to remove stain stains stuck to the fibers. Therefore, it is necessary to immerse the tile carpet for a predetermined time (for example, 3 to 4 hours) in a dipping tank filled with a mixed water of an oxygen-based bleach and water before being put into the cleaning device (paragraph). 0016), there is a problem that a substantial amount of time is required for the work.
In the cleaning apparatus of Patent Document 3, it is necessary to seal and deaerate the cleaning tank for each lot, and in particular, since degassing requires a long time, there is a problem that work efficiency is extremely poor.
The present invention has been made in consideration of the conventional problems as described above, and provides a tile carpet cleaning apparatus and a tile carpet cleaning method that do not hurt the tile carpet with a brush and have high work efficiency. With the goal.

The tile carpet cleaning apparatus according to the present invention includes a cleaning tank that holds a liquid, an ultrasonic vibration plate provided at a bottom of the cleaning tank, and the ultrasonic wave is applied to the tile carpet while the tile carpet is immersed in the liquid. And a conveying unit that conveys the diaphragm while facing the diaphragm.
In the tile carpet cleaning apparatus of the present invention, at least a part of the tile carpet passes through the position corresponding to the antinode in the standing wave vibration generated between the liquid level of the liquid and the ultrasonic vibration plate. It is preferable to carry it.

In the tile carpet cleaning apparatus of the present invention, it is preferable that the tile carpet cleaned in the cleaning tank further includes a high-pressure cleaning means including a cleaning nozzle for injecting a liquid.
In the tile carpet cleaning apparatus of the present invention, the cleaning nozzle is installed above the cleaning tank, and the transport means transports the tile carpet cleaned in the cleaning tank to the top of the cleaning tank, and the high pressure It is preferable to pass the tile carpet through the cleaning means.

In the tile carpet cleaning apparatus according to the present invention, the cleaning nozzle sprays the liquid downward, and the conveying means causes the tile carpet to be placed in the cleaning tank with the front side of the tile carpet facing downward. A cleaning tank transport section to be transported; a reversal transport section in which the front side of the tile carpet is turned upward in the downstream of the cleaning tank transport section; and a front side of the tile carpet in the downstream of the reverse transport section. It is preferable that the high-pressure cleaning means includes a high-pressure cleaning and conveying section that allows the tile carpet to pass through in a state of being directed to.
In the tile carpet cleaning apparatus of the present invention, a plurality of the cleaning nozzles are installed on positions corresponding to the circumference of a circle having a diameter equal to or larger than the size of one piece of the tile carpet, and the plurality of cleaning nozzles, It is preferable to rotate along the circumference with the position corresponding to the center of the circle as a rotation axis.

In the tile carpet cleaning apparatus of the present invention, it is preferable that the plurality of cleaning nozzles each have a liquid ejection direction inclined from a direction parallel to the rotation axis to a tangential direction of the circumference.
In the tile carpet cleaning apparatus of the present invention, the high-pressure cleaning means is further provided at a position corresponding to the center of the circle and is rotatably held, and an annular member provided at a position corresponding to the circumference. It is preferable that the plurality of cleaning nozzles are fixed on the annular member, including a connection member provided at a position corresponding to a radius of the circle and connecting the rotation center member and the annular member.

In the tile carpet cleaning apparatus of the present invention, it is preferable that the tile carpet cleaning apparatus further includes suction means for sucking and removing the liquid adhering to the front side of the tile carpet cleaned by the high pressure cleaning means.
The tile carpet cleaning apparatus of the present invention further includes a water environment improvement device that receives raw water supplied from the outside and outputs treated water having a lower oxidation reduction potential than the raw water, and is held in the cleaning tank. The treated water is preferably used as the liquid that has been applied and the liquid that is ejected from the cleaning nozzle.

  The tile carpet cleaning method according to the present invention includes an ultrasonic cleaning step of immersing the tile carpet in a liquid and cleaning the tile carpet by applying ultrasonic vibration, and the tile carpet cleaned in the ultrasonic cleaning step. And a high pressure washing step for jetting and washing the liquid.

  The tile carpet cleaning apparatus according to the present invention is an apparatus that conveys a tile carpet while facing the ultrasonic vibration plate installed at the bottom of the cleaning tank while immersing the tile carpet in a liquid used for ultrasonic cleaning. Even if it is not soaked before it is put into the container, it can remove dust and earth and sand that have penetrated into the back and lift the dirt stuck to the fibers. Therefore, according to the tile carpet cleaning apparatus of the present invention, the tile carpet is not damaged by the brush, the work efficiency is high, and the tile carpet cleaning apparatus can be applied to a carpet having a long bristle or a pile carpet having a pile.

Furthermore, the tile carpet cleaning apparatus according to the present invention conveys the position corresponding to the antinode in the standing wave vibration formed between the liquid surface and the ultrasonic vibration plate so that at least a part of the tile carpet passes, Cleaning can be performed efficiently using ultrasonic vibration.
Furthermore, the tile carpet cleaning apparatus according to the present invention can more reliably remove dirt floating by ultrasonic cleaning by spraying a liquid such as a cleaning liquid onto the tile carpet.

Furthermore, the tile carpet cleaning apparatus according to the present invention can reduce the installation area of the apparatus by installing the cleaning nozzle above the cleaning tank, and further, the transport direction in the cleaning tank and the transport direction in the high-pressure cleaning. Since the tile carpet input position and the discharge position are close to each other, one worker can work efficiently.
Furthermore, the tile carpet cleaning apparatus according to the present invention conveys the tile carpet in the cleaning tank with the front side of the tile carpet facing downward, and the bottom side of the cleaning nozzle with the front side of the tile carpet facing upward. By passing the tile carpet through the tile carpet and spraying the liquid downward from the washing nozzle, it is possible to improve the stain removal.

Furthermore, in the tile carpet cleaning apparatus according to the present invention, the plurality of cleaning nozzles rotate along the circumference of a circle having a diameter equal to or larger than the size of one piece of the tile carpet, thereby cleaning the tile carpet without unevenness. And no streaks of cleaning marks are left on the tile carpet.
Furthermore, in the tile carpet cleaning apparatus according to the present invention, the liquid spraying direction in the cleaning nozzle is inclined in the tangential direction of the circumference corresponding to the trajectory when the cleaning nozzle rotates, so that the liquid is simply sprayed in the tangential direction. Propulsive force is generated and the cleaning nozzle can be rotated. Therefore, the structure can be simplified and the manufacturing cost can be reduced.

Furthermore, in the tile carpet cleaning apparatus according to the present invention, the high pressure cleaning means provides an annular member at a position corresponding to the circumference, and a plurality of cleaning nozzles are fixed on the annular member, thereby rotating the cleaning nozzle. It can be stabilized.
Furthermore, since the tile carpet cleaning apparatus according to the present invention includes a suction means for sucking the liquid on the front side of the tile carpet, the liquid on the tile carpet can be removed, so that the drying time of the tile carpet is greatly reduced. can do.

  Furthermore, the tile carpet cleaning apparatus according to the present invention provides an oxidation reduction potential (Oxidation Reduction Potential) by a water environment improvement device using particulate ceramics as the liquid held in the cleaning tank and the liquid sprayed from the cleaning nozzle. By using reduced treated water, the detrimental effect on the environment can be greatly reduced as compared with the case of using a detergent while providing cleaning power, and there is no need to provide a separate rinsing process. The apparatus can be miniaturized.

  In the tile carpet cleaning method according to the present invention, the tile carpet is immersed in a liquid, and ultrasonic vibration is applied to the tile carpet to perform cleaning, thereby removing dust and earth and sand that have penetrated into the back, and floating dirt stuck to the fibers. After that, by jetting and cleaning the liquid, a synergistic effect is obtained that the dirt floating by the ultrasonic vibration can be removed.

1 is an external view of a tile carpet cleaning device according to the present invention. It is the schematic which shows the mode of the ultrasonic vibration in a washing tank. It is an external view which shows the structure of a high pressure washing | cleaning means. It is an external view of the tile carpet cleaning apparatus of the modification which concerns on this invention.

(Embodiment)
The tile carpet cleaning apparatus according to the present invention is an apparatus that performs off-location cleaning, and can sequentially wash tile carpets to be cleaned that have been removed from the floor surface one by one using a belt conveyor system.
A tile carpet cleaning apparatus 1 shown in FIG. 1 includes a cleaning tank 10, an ultrasonic vibration plate 20, a transport unit 30, a high-pressure cleaning unit 40, and a suction unit 50. Here, in FIG. 1, description of the mechanism of the conveyance means 30 is abbreviate | omitted, and the arrow AG for describing the conveyance path | route of the tile carpet by the conveyance means 30 is described instead.

The cleaning tank 10 is a container holding a liquid for use in ultrasonic cleaning, and is an internal method capable of immersing a tile carpet to be cleaned (for example, 50 cm long × 50 cm wide × 4 mm to 10 mm thick). There is.
The liquid held in the cleaning tank 10 may be any liquid as long as it can transmit ultrasonic vibration from the ultrasonic vibration plate 20 to the tile carpet, but has a certain degree of cleaning power. Is desirable. The description about the liquid currently hold | maintained at the washing tank 10 is mentioned later.

  The ultrasonic vibration plate 20 (dashed line in FIG. 1) is a planar vibration plate that generates ultrasonic vibrations, and is provided at the bottom of the cleaning tank 10. In the present embodiment, three ultrasonic vibration plates 20 are installed horizontally on the bottom surface of the cleaning tank 10, and three ultrasonic generators (each driving the three ultrasonic vibration plates 20 outside the device) ( (Not shown). In the present embodiment, the frequency of the ultrasonic vibration generated by the ultrasonic vibration plate 20 is 26 kHz, but the frequency is not limited to this and may be a different frequency. For example, the frequency is preferably 20 kHz or more, and more preferably 20 kHz to 40 kHz. If the frequency is 20 kHz or more, dirt attached to the tile carpet can be cleaned by ultrasonic vibration, and if the frequency is 20 kHz to 40 kHz, the cleaning power is relatively high, and the oil and fat and visible large dirt are visible. Suitable for cleaning.

  The intensity of the ultrasonic vibration in the ultrasonic vibration plate 20 is appropriately adjusted depending on the type of tile carpet, the degree of contamination, whether the tile carpet is new, or the like. For example, in the case of a tile carpet with short hairs or a tile carpet that has been washed several times, set the strength to a lower value. It is better to set the strength higher.

  The conveying means 30 automatically conveys the tile carpet along a predetermined conveying path (arrows A to G in FIG. 1). Here, the conveyance speed in the conveyance means 30 is appropriately adjusted by the operator by turning the dial on the operation panel 31 according to the type of tile carpet and the like. Any existing method for transporting the tile carpet may be used, but it is desirable that the tile carpet transport mechanism does not interfere with the cleaning of the front side of the tile carpet. The transport means 30 includes a cleaning tank transport section (section corresponding to the transport path indicated by arrows B and C in FIG. 1), a reverse transport section (section corresponding to the transport path indicated by arrow D in FIG. 1), and a high-pressure cleaning transport section. (A section corresponding to the conveyance path indicated by arrow E in FIG. 1) and a suction section (a section corresponding to the conveyance path indicated by arrow F in FIG. 1) are included.

  In this embodiment, the transport means 30 includes a transport guide 32 that moves by a chain drive (not shown) in the cleaning tank transport section, the reverse transport section, and the high-pressure cleaning transport section. The tile carpet is conveyed by pushing one side. Further, the transport unit 30 includes a plurality of pairs of transport rollers 33 at the top and bottom in the suction section, and transports the transport rollers 33 with the tile carpet sandwiched therebetween. Here, by making the conveyance speed by the conveyance roller 33 somewhat faster than the conveyance speed by the conveyance guide 32 in the cleaning tank conveyance section, the reverse conveyance section, and the high pressure cleaning conveyance section, the high pressure cleaning conveyance section is changed to the suction section. The tile carpet can be delivered smoothly without stagnation.

  In the cleaning tank transport section, the tile carpet is transported while facing the ultrasonic vibration plate 20 while the tile carpet is immersed in the liquid held in the cleaning tank 10. Specifically, a tile carpet (X in FIG. 1) that is input from the input port 34 with the front side facing downward (image of arrow A in FIG. 1) is inclined downward (arrow in FIG. 1). The tile carpet is immersed in the liquid in the cleaning tank 10 in order from the top. In the part where the tile carpet is immersed in the liquid, the tile carpet is conveyed horizontally (in the direction of arrow C in FIG. 1) in a state of facing the ultrasonic vibration plate 20, and then the tile carpet is sequentially washed from the top in the cleaning tank 10. Pull up the liquid diagonally upward. Here, since the air on the surface and inside of the tile carpet is gradually pushed out in the process of being transported, the liquid can be distributed inside the tile carpet without performing a long time operation such as deaeration. .

  As described above, the ultrasonic vibration plate 20 applies ultrasonic vibration to the tile carpet immersed in the liquid in the cleaning tank conveyance section, so that the tile carpet can be cleaned. In particular, by transporting the tile carpet in the cleaning tank 10 with the front side of the tile carpet facing downward, it is possible to improve soil removal due to ultrasonic cleaning.

Cleaning by ultrasonic vibration is often used for hard objects such as glasses, contact lenses, accessories, and teeth, but is generally considered ineffective for soft objects such as tile carpets. ing.
This time, we conducted experiments using various cleaning means other than brushes so that the tile carpet would not be damaged by the brush. I did, but I couldn't get a satisfactory result. And finally, by arranging a plurality of ultrasonic vibrators on a plane to make an ultrasonic vibration plate, installing this at the bottom of the water tank, soaking the tile carpet in the liquid in the water tank and facing the ultrasonic vibration plate, We found that dirt and sand that had penetrated into the back of the tile carpet could be removed and the dirt stuck to the fibers could be floated in a relatively short time. Furthermore, when an ultrasonic vibration plate is installed at the bottom of the water tank, it has been found that standing wave vibration can be generated between the ultrasonic vibration plate and the liquid surface. It was found that it can be used frequently and cleaned in a shorter time. The standing wave vibration will be described in detail below.

  The ultrasonic vibration emitted from the ultrasonic vibration plate 20 and the reflected wave from the liquid surface overlap between the liquid level of the liquid held in the cleaning tank 10 and the ultrasonic vibration plate 20, so that the steady wave vibration is generated. Can do. For example, as shown in FIG. 2, when the cleaning tank 10 is viewed from the front side, the liquid level (A in FIG. 2) held in the cleaning tank 10 and the upper surface of the ultrasonic vibration plate 20 (in FIG. 2). B), when an ultrasonic vibration is generated by standing a thin film such as an aluminum foil perpendicularly to the liquid surface, λ / 2 (λ is an ultrasonic wave) vertically from the ultrasonic vibration plate 20 on the thin film. “Antinodes” (C0, C1, and C2 in FIG. 2) at which the vibration becomes maximum appear every time the wavelength of the vibrations is separated, and “nodes” (in FIG. 2) at which the vibration becomes the minimum between the adjacent “antinodes”. D0, D1, D2) appear. When the wavelength of the ultrasonic vibration generated by the ultrasonic vibration plate 20 is λ, the position corresponding to the “antinode” appears on the thin film at every distance of λ / 2 from the upper surface of the ultrasonic vibration plate 20 ( When N = 0, 1, 2,..., The distance from the upper surface of the ultrasonic vibration plate 20 to the “antinode” is N × λ / 2), and the position corresponding to the “node” is Calculations appearing at positions away from each “antinode” by λ / 4 (when N = 0, 1, 2,..., The distance from the upper surface of the ultrasonic vibration plate 20 to the “node” is λ / 4 + N × λ / 2).

  When the object to be cleaned is placed at a position corresponding to the “antinode” in the standing wave vibration, the ultrasonic vibration can be efficiently used for cleaning. Therefore, it is preferable to transport the tile carpet so that at least a part of the tile carpet passes through the position corresponding to the “antinode” in the standing wave vibration in the cleaning tank transport section. In this embodiment, the tile carpet is parallel to the ultrasonic vibration plate 20, and the surface passing through the position closest to the ultrasonic vibration plate 20 among the positions corresponding to the “antinode” of the ultrasonic vibration (ultrasonic vibration plate) The tile carpet is transported so as to pass through a plane which is separated from the 20 upward by a distance of λ / 2: D0 in FIG. Here, when the velocity of sound in the liquid held in the cleaning tank 10 is V and the ultrasonic vibration generated by the ultrasonic vibration plate 20 is f, the wavelength λ of the ultrasonic vibration is V / f. For example, if f is 26 kHz and V is 1500 m / s, λ / 2 is approximately 28.8 mm. Therefore, the tile carpet is parallel to the ultrasonic diaphragm 20 and shallow from the ultrasonic diaphragm 20 by approximately 28.8 mm. It is a good calculation to transport the surface so as to be included in the transport path of the tile carpet.

  It is possible to remove dirt and earth that have entered the back of the tile carpet and to float dirt stuck to the fiber by simply performing cleaning by ultrasonic vibration without cleaning by the high pressure cleaning means 40. The carpet cleaning apparatus 1 should just be a structure provided with the part of the washing tank conveyance area in the washing tank 10, the ultrasonic vibration plate 20, and the conveyance means 30 at least. In addition, the tile carpet cleaning apparatus 1 adds the suction unit 50 to the above configuration, so that the cleaning tank transport section and the suction section of the cleaning tank 10, the ultrasonic vibration plate 20, the suction unit 50, and the transport unit 30 are separated. The structure provided may be sufficient. Further, the tile carpet is immersed in the liquid in the cleaning tank 10, and the ultrasonic vibration is applied to the tile carpet by the ultrasonic vibration plate 20 to clean the tile carpet, and the high-pressure cleaning means 40 sprays the liquid onto the ultrasonically cleaned tile carpet. By removing the dirt and sand that has penetrated in the ultrasonic cleaning and floating the dirt stuck to the fiber, the dirt that has been lifted by ultrasonic vibration can be removed in the high pressure cleaning. An effect is obtained.

In the reverse conveyance section, the tile carpet is conveyed upward while being inverted so that the front side of the tile carpet facing downward is directed upward in the downstream of the cleaning tank conveyance section.
In the high-pressure washing and conveying section, the tile carpet is passed through the high-pressure washing means 40 with the front side of the tile carpet facing upward at the downstream of the reverse conveying section.
In the high-pressure cleaning means 40, a liquid such as a cleaning liquid is sprayed onto the tile carpet ultrasonically cleaned in the cleaning tank 10 to perform further cleaning. A description of the liquid ejected in the high-pressure cleaning means 40 will be given later. As shown in FIG. 3, the high-pressure cleaning means 40 includes a plurality of cleaning nozzles 41, a rotation center member 42, an annular member 43, and a connection member 44.

  Each of the plurality of cleaning nozzles 41 is installed above the cleaning tank 10 and sprays a liquid such as a cleaning liquid downward onto a tile carpet transported below the cleaning nozzle 41 in the high-pressure cleaning transport section. Wash. Thus, when the cleaning nozzle 41 is installed above the cleaning tank 10, the installation area of the apparatus can be reduced, and further, the transport direction in the cleaning tank transport section and the transport direction in the high-pressure cleaning transport section can be set. Since the direction can be reversed, it is possible for one worker to work efficiently by bringing the tile carpet input position and discharge position closer. The installation positions of the plurality of cleaning nozzles 41 do not necessarily have to be above the cleaning tank 10.

  The plurality of cleaning nozzles 41 can be arranged in various directions, for example, in a direction perpendicular to the tile carpet conveyance direction, or a small number of cleaning nozzles 41 can be moved left and right. Any installation may be used as long as the liquid can be sprayed onto the entire carpet. In the present embodiment, a plurality of cleaning nozzles 41 are installed at intervals on positions corresponding to the circumference of a circle having a diameter (for example, 51 cm) that is equal to or larger than the size (for example, 50 cm) of a piece of tile carpet. The nozzle 41 is rotated with the position corresponding to the center of the circle as the rotation axis, and the liquid is uniformly sprayed onto the tile carpet. Accordingly, the tile carpet can be cleaned evenly with about 2 to 4 cleaning nozzles 41, and no streak-like cleaning marks or the like remain on the tile carpet. In FIG. 1, four solid arrows described on the high-pressure cleaning unit 40 indicate the liquid ejection direction, and broken-line arrows described on the high-pressure cleaning unit 40 indicate the rotation direction of the cleaning nozzle 41.

The rotation center member 42 shown in FIG. 3 is provided at a position corresponding to the rotation axis when the cleaning nozzle 41 rotates, is rotatably held by the frame of the tile carpet cleaning device, and the liquid ejected from the cleaning nozzle 41 is on the frame side. Accept from.
The annular member 43 shown in FIG. 3 is provided at a position corresponding to a track when the cleaning nozzle 41 rotates. Here, a plurality of cleaning nozzles 41 are fixed on the annular member 43, and the rotation of the cleaning nozzles can be stabilized by rotating the annular member 43 together with the plurality of cleaning nozzles 41.

The connection member 44 shown in FIG. 3 is provided at a position corresponding to the radius of a circle drawn by the orbit when the cleaning nozzle 41 rotates, connects the rotation center member 42 and the annular member 43, and connects the rotation center member 42 to the annular member. It is used as a pipe for sending the liquid to be sprayed to each cleaning nozzle 41 on 43.
In the present embodiment, four cleaning nozzles 41 are installed on the annular member 43 at equal intervals, and each connection member 44 sends the liquid to be ejected to one cleaning nozzle 41.
Further, the plurality of cleaning nozzles 41 each incline the liquid ejecting direction in a circumferential tangential direction corresponding to a trajectory when the cleaning nozzle 41 rotates. In this way, a propulsive force is generated in the tangential direction simply by ejecting the liquid, so that the cleaning nozzle 41 can be rotated without any additional power. Therefore, the structure can be simplified and the manufacturing cost can be reduced.

In the suction section, the tile carpet is passed through the suction means 50 in a state where the front side of the tile carpet is directed upward at the downstream side of the high-pressure washing and transport section, and the tile carpet is discharged to the discharge tray (arrow in FIG. 1). G).
The suction means 50 sucks and removes the liquid on the front side of the tile carpet cleaned by the high pressure cleaning means 40. An upward arrow described below the suction means 50 in FIG. 1 indicates the direction of suction. Here, since the position of the tile carpet conveyed in the suction section fluctuates in the vertical direction, the suction means 50 is fixed so as to be movable in the vertical direction so that the fluctuation can be absorbed. Since the liquid on the tile carpet can be almost removed by the suction means 50, the drying time of the tile carpet can be greatly shortened.

(About the liquid currently hold | maintained at the washing tank 10, and the liquid sprayed by the high pressure washing means 40)
As the liquid held in the cleaning tank 10 and the liquid ejected by the high-pressure cleaning means 40, for example, various liquids having a cleaning power such as a detergent can be used. Anything that adversely affects the system is undesirable. In addition, if the liquid is harmful, a process for detoxifying the drained liquid is required at the time of disposal, and the equipment may be large. Therefore, it is desirable to use a liquid that has a detergency, has little adverse effect on the environment, and does not require a separate detoxification treatment when discarded.

  In the present embodiment, as the liquid held in the cleaning tank 10 and the liquid ejected from the cleaning nozzle 41, the tap water of Osaka city is processed by a water environment improvement device (not shown) to improve the cleaning power. Treated water is used.

  For example, the water environment improvement device is a “photoelectronic application device Direka” (hereinafter referred to as “Direka”) sold by TAMURA Inc., which outputs negative ion water with a high active oxygen elimination rate and low active oxygen. can do. According to the material of TAMURA, Inc. (see TAMURA's website http://www.tamuraworld.com), “Direka” creates a myriad of intricate vortices inside when water passes, and the water collides with it. It is said that static electricity is generated by the influence of friction caused by the vortex, the positive charge of the generated static electricity is released to the ground, and the situation where only negative charge exists in the water is supposed to be created . Furthermore, “Dileka” is an “Atom Chip” in which several types of activated carbon are blended into more than 20 types of ores pulverized using nano-technology (technology that makes ores and activated carbon very fine), and these are confined in resin. It is said that the far-infrared effect in nature is reproduced by the effect of "." Furthermore, “Direka” has a complicated vortex inside, so that very fine bubbles are created to purify water with air and purify water with water flow.

  In addition, for example, the water environment improvement device is “TN Realizer” manufactured by Sage Corporation, and “TN Realizer” receives supply of raw water such as well water and tap water from the outside. Treated water (hereinafter referred to as “TN realizer treated water”) having a lower oxidation reduction potential than raw water can be output. According to materials from Sage Corporation, “TN Realizer” is a container that contains powdered ceramics fired from rock powder containing a variety of trace metal elements in a container. Thus, it is said that a water environment having high reducing power, penetrating power and antibacterial power can be created.

Here, the oxidation-reduction potential refers to immersion of a non-invasive electrode such as a platinum plate (an electrode of an inert substance that does not participate in the oxidation-reduction reaction) in a solution composed of an oxidant and a reductant that are in a conjugate relationship by electron transfer. Is obtained by measuring the potential difference generated between the platinum electrode and the standard hydrogen electrode.
Actually, the tap water of Osaka City, negative ion water with low active oxygen obtained by treating the tap water with “Direka”, and “TN Realizer treated water” obtained by supplying the tap water as raw water. In each case, a small amount of detergent was added to compare the stain removal of the tile carpet, and both of these treatment waters were significantly better than Osaka city tap water.

In the present embodiment, negative ion water with less active oxygen obtained by treating tap water with “Direka” is supplied to “TN Realizer” as raw water, and the obtained “TN Realizer treated water” is obtained. Are used as the liquid held in the cleaning tank 10 and the liquid ejected by the high-pressure cleaning means 40. In this way, by using “Deleka” and “TN Realizer” in combination, it is possible to obtain a higher detergency than using each of them alone.
Table 1 shows the results of measuring the oxidation-reduction potential for treated water and non-treated water treated by “TN Realizer”.

  As shown in Table 1, T.W. N. The redox potential of the treated realizer water is about 270 mV according to actual measurements, and the redox potential is reduced by an average of 232.2 mV compared to the raw water (untreated water). Here, T.W. N. As the realizer, an in-facility central system circulation type was used, and a waterproof platinum composite ORP electrode 9300-10D manufactured by HORIBA, Ltd. was used for measurement of the oxidation-reduction potential.

  In addition, as a liquid held in the cleaning tank 10 and a liquid ejected from the cleaning nozzle 41, a water environment improvement device using particulate ceramics such as “Deleka” or “TN Realizer” It is preferable to use treated water that has been subjected to treatment such as reducing the oxidation-reduction potential to 400 mV or less, and more preferably using treated water having the oxidation-reduction potential lowered to 300 mV or less. When treated water whose oxidation-reduction potential is lowered to 400 mV or less by the water environment improvement device can be expected to improve the cleaning power as compared with the case of using non-treated water, and similarly the oxidation-reduction potential is lowered to 300 mV or less. It seems that sufficient detergency can be obtained by using treated water.

  The tile carpet cleaning apparatus 1 according to the present invention uses particulate ceramics such as “Dereka” and “TN Realizer” as liquid held in the cleaning tank 10 and liquid sprayed from the cleaning nozzle 41. By using treated water that has been treated to reduce the oxidation-reduction potential with water environment improvement equipment that uses water, the detrimental effect on the environment is significantly greater than when detergents are used while providing detergency. Can be reduced. In addition, since there is no problem even if the component of the treated water remains on the tile carpet, it is not necessary to provide a separate rinsing step, and the apparatus can be miniaturized.

(Modification)
As shown in FIG. 4, the tile carpet cleaning device 2 according to a modified example of the present invention further includes a single-type water environment improvement device 60 in the tile carpet cleaning device 1 of the above embodiment.

The tile carpet cleaning apparatus 2 can take this apparatus anywhere as long as water and electric power can be secured by incorporating the single water environment improvement device 60. Further, since it is not necessary to make the drained liquid harmless when it is discarded, it is easy to clean the tile carpet while the dirt on the tile carpet is light, for example, by moving the apparatus body close to the laying site.
In addition, instead of the single-type water environment improvement device 60, a circulation type water environment improvement device may be incorporated, and the liquid retained in the cleaning tank 10 may be repeatedly processed.

DESCRIPTION OF SYMBOLS 1, 2 Tile carpet cleaning apparatus 10 Cleaning tank 20 Ultrasonic vibration board 30 Conveyance means 31 Operation panel 32 Conveyance guide 33 Conveyance roller 34 Input port 40 High pressure washing means 41 Washing nozzle 42 Rotation center member 43 Annular member 44 Connection member 50 Suction means 60 Water environment improvement equipment

Claims (11)

A washing tank for holding liquid;
An ultrasonic vibration plate provided at the bottom of the cleaning tank;
A tile carpet cleaning apparatus, comprising: a conveying unit that conveys the tile carpet while facing the ultrasonic vibration plate while immersing the tile carpet in the liquid.   The said conveyance means is conveyed so that at least one part of the said tile carpet may pass through the position corresponded to the antinode in the standing wave vibration made between the liquid level of the said liquid and the said ultrasonic vibration plate. Tile carpet cleaning equipment. further,
The tile carpet cleaning apparatus according to claim 1, further comprising a high-pressure cleaning unit including a cleaning nozzle that sprays liquid on the tile carpet cleaned in the cleaning tank. The cleaning nozzle is installed above the cleaning tank,
The conveying means is
The tile carpet cleaning apparatus according to claim 3, wherein the tile carpet cleaned in the cleaning tank is transported above the cleaning tank and is passed through the high-pressure cleaning means. The cleaning nozzle sprays the liquid downward,
The conveying means is
In a state where the front side of the tile carpet is directed downward, a cleaning tank transport section for transporting the tile carpet in the cleaning tank,
In the downstream of the washing tank conveyance section, a reverse conveyance section that reverses the front side of the tile carpet to face upward, and
5. The tile carpet cleaning according to claim 3, further comprising: a high-pressure cleaning / conveying section that allows the high-pressure cleaning unit to pass the tile carpet with the front side of the tile carpet facing upward at a downstream side of the reverse conveying section. apparatus. The washing nozzle is
A plurality of tile carpets are installed on positions corresponding to the circumference of a circle having a diameter equal to or larger than one piece of the tile carpet,
6. The tile carpet cleaning device according to claim 3, wherein each of the plurality of cleaning nozzles rotates along the circumference with a position corresponding to a center of the circle as a rotation axis. Each of the plurality of cleaning nozzles is
The tile carpet cleaning apparatus according to claim 6, wherein a liquid ejection direction is inclined in a tangential direction of the circumference from a direction parallel to the rotation axis. The high-pressure washing means further includes
A rotation center member provided at a position corresponding to the center of the circle and rotatably held;
An annular member provided at a position corresponding to the circumference;
A connection member provided at a position corresponding to the radius of the circle, and connecting the rotation center member and the annular member;
The tile carpet cleaning apparatus according to claim 7, wherein the plurality of cleaning nozzles are fixed on the annular member. further,
The tile carpet cleaning apparatus according to any one of claims 3 to 8, further comprising a suction unit that sucks and removes liquid adhering to the front side of the tile carpet cleaned by the high-pressure cleaning unit. further,
Equipped with water environment improvement equipment that receives raw water supply from the outside and outputs treated water with lower oxidation reduction potential than the raw water,
The tile carpet cleaning apparatus according to any one of claims 3 to 9, wherein the treated water is used as the liquid held in the cleaning tank and the liquid ejected from the cleaning nozzle. An ultrasonic cleaning step of immersing the tile carpet in a liquid and cleaning the tile carpet by applying ultrasonic vibration;
A tile carpet cleaning method comprising: a high pressure cleaning step of spraying and cleaning a liquid on the tile carpet cleaned in the ultrasonic cleaning step.

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