JP2010221811A - Washing tool, automatic washing device, and washing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove dirt, which is unremovable even by high pressure water, washing automatically. <P>SOLUTION: An elastic material such as a sponge is cylindrically formed so as to axially rotate. Such an axial rotation is configured so as to rotate by a contact friction with a washing object 30. For example, a sponge roll 10a made up in above manner is pressed against the washed surface of the washing object 30 with a predetermined contact pressure. The washing object 30 is moved while keeping such a state. The sponge roll 10a contact rotates in accordance with the movement of the washing object 30. The movement of the sponge roll 10a, which has been collapsed upon the contact rotation, cleanly removes the dirt, which has been unremovable even by high pressure water. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is a technique that is effective when applied to removing dirt that cannot be removed even by blowing high-pressure water.

  In order to clean a so-called vehicle such as a train and a train, since the object to be cleaned is large, automatic cleaning is inevitably performed. Unlike a car or the like, if there are a large number of objects to be cleaned and there are a large number of objects to be cleaned, it is basically impossible for a person to manually wash the cars one by one.

  Conventionally, a brush-type cleaning device has been frequently used as a cleaning device used for such automatic cleaning. Such a brush-type cleaning device is installed in a vehicle base such as a train or a train. The vehicle that has returned to the base is cleaned by the brush type cleaning device while waiting at the base. Such a brush type cleaning apparatus can be found in, for example, a car wash machine such as a gas station. The basic configuration of the brush type cleaning unit is almost the same.

  In such a brush-type cleaning device, the brush is provided so as to be automatically rotatable by a motor. Such brushes are provided radially around the rotation axis, and the entire brush is formed in a columnar shape. In this configuration, the tip side of the brush is brought into contact with the object to be cleaned. The brush is configured to be automatically rotatable. Therefore, basically, the tip end side of the rotating brush comes into rotational contact with the object to be cleaned, and the dirt on the brush contact surface side of the object to be cleaned is removed.

  However, the brush cleaning has been pointed out that the rotating brush is in contact with the object to be cleaned as described above, so that the surface is easily damaged. In particular, it is said that a nylon brush is easily scratched. In order to solve this problem, a method of removing dirt by spraying water has been developed. This is a so-called water pressure method in which water is jetted into a high-pressure jet and the dirt is removed with that momentum. Such a technique is described in, for example, JP-A-7-329737 (Patent Document 1).

JP-A-7-329737

  As described above, the current automatic cleaning apparatus generally uses water pressure and sprays water together with a detergent to remove dirt. Until then, brush cleaning was avoided because of problems such as scratches during cleaning. However, even in the case of the hydraulic type in which the detergent is sprayed to decompose the dirt and then washed away with high-pressure water or warm water, the dirt on the surface cannot be completely removed. Even with an automatic cleaning device, even such dirt cannot be removed completely.

  Such dirt cannot be removed due to the low water pressure of the automatic cleaning device. Even if the water pressure is increased, it cannot be dropped. For example, even if the water pressure is as high as 150 atmospheres, the dirt will not be removed. It was found that the dirt that does not fall even at such a high water pressure is a thin skin-like dirt formed on the surface of the object to be cleaned. When the water pressure is further increased to remove such thin skin-like dirt, the high pressure water applied to the pinholes on the painted surface is applied and the painted surface is peeled off. The present inventor has found that the dirt on the vehicle that cannot be removed even under such high pressure can be easily removed by lightly pressing and touching the fingertip. This was a surprising fact. The present inventor examined such contamination in more detail. As a result, it was found that the film thickness of the dirt that falls just by lightly touching is a thin film that cannot be measured and is considered to be part of the choking deterioration phenomenon.

  Of course, if it is dirt that falls off when touched with a finger, it will fall off if it is wiped manually with a soft cloth. However, it is basically impossible to perform work manually with a large number of objects to be cleaned such as trains and a large number of objects. The fact is that you have to rely on automatic cleaning equipment.

  An object of the present invention is to provide a technique for automatically removing dirt that cannot be removed even with high-pressure water.

  The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows. In other words, the main body of the cleaning tool formed of an elastic member such as sponge is pressed against the object to be cleaned at a predetermined pressure and rotated by contact with the object to be cleaned without rotating by itself. But remove the dirt that could not be removed.

  Among the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows. In other words, it is possible to remove dirt on vehicles such as trains that could not be removed by spraying high-pressure water with an automatic cleaning device without scratching the painted surface so that it can be visually confirmed. became.

(A) is explanatory drawing which shows the outline | summary of a sponge roll typically, (b) is explanatory drawing which shows typically the state which contact | abuts the washing | cleaning target object to which a sponge roll moves, (c) is a sponge roll. It is explanatory drawing which shows typically the case where is rotating in contact with the washing | cleaning target object. (A)-(c) is explanatory drawing which shows typically the condition at the time of contact with the washing | cleaning target object of a sponge roll. (A)-(f) is explanatory drawing which shows typically the prescription | regulation method of contact pressure. (A)-(c) is explanatory drawing which shows typically the modification which provided the cut | interruption in the surrounding surface. It is explanatory drawing which shows typically a mode that the cut was made in the direction which cross | intersects with respect to the rotating shaft direction on the surrounding surface of a sponge roll. It is explanatory drawing which shows typically a mode that the spiral cut | interruption was made in the direction which cross | intersects with respect to a rotating shaft direction on the surrounding surface of a sponge roll. It is explanatory drawing which shows typically a mode that the spiral cut | interruption was made in the direction which cross | intersects with respect to a rotating shaft direction on the surrounding surface of a sponge roll. It is explanatory drawing which shows typically a mode that the cut | interruption was each provided in the direction along the rotating shaft direction of a sponge roll, and the crossing direction. (A)-(c) is explanatory drawing which shows a mode that the convex surface part shown in FIG. 8 is wash | cleaned with the sponge roll which made the notch, respectively. It is explanatory drawing which shows the effect by the installation angle of a sponge roll. It is explanatory drawing which shows the effect by the installation angle of a sponge roll in the state which provided the brake shoe. (A), (b) is explanatory drawing which shows the effect by the magnitude of the installation angle of a sponge roll. (A)-(c) is explanatory drawing which shows typically the case where a sponge roll is provided in the both sides of a track | line and the automatic washing apparatus is comprised. It is a perspective view which shows typically the state which applied the vehicle as a washing | cleaning target object to the automatic washing apparatus shown in FIG. (A), (b) is a modification of the automatic washing apparatus which has a sponge roll. It is explanatory drawing which showed typically the case where the automatic cleaning apparatus was provided for private use. (A), (b) is explanatory drawing which showed typically a mode that a motor vehicle was applied to an automatic washing apparatus. (A), (b) is explanatory drawing which shows typically the case where materials, such as a square and a round, are wash | cleaned with a sponge roll. (A), (b) is a modification of the automatic washing apparatus which has a sponge roll. (A), (b) is a modification of the automatic washing apparatus which has a sponge roll. It is explanatory drawing which shows the structural example of a rotating brush. (A)-(d) is explanatory drawing which shows typically the modification of the cleaning tool main body of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

  The present invention relates to a technique related to an automatic car wash apparatus. In particular, this technique is effective when applied to the removal of dirt from vehicles such as trains and trains that could not be removed by blowing high-pressure water. In the technique according to the present invention for removing such dirt, a cleaning tool having a very specific configuration is used. By using such a cleaning tool, it is possible to easily remove dirt that does not fall off even when high-pressure water is blown without damaging the object to be cleaned.

  As described above, the present inventor has found that dirt that could not be removed by spraying high-pressure water can be removed only by lightly touching with a finger. As a method for removing dirt by lightly touching with such a finger, the idea was to create a rubbing phenomenon (longitudinal and horizontal slant) on the surface of the object to be cleaned by a sponge. By using such means, it is possible to surely increase the cleaning effect as compared with the conventional high pressure water spray cleaning, and it is possible to remove the dirt that could not be removed even by the high pressure water spray. It is assumed that it can be removed by the amplitude of rubbing by the sponge. Such rubbing can be further increased by a cutting angle or the like put in the sponge. Although it is as small as millimeters, it functions sufficiently as a cleaning effect. In the sponge having such a configuration, the shape of the sponge can be easily changed depending on the shape of the object to be cleaned. As a result, the cleaning object is not damaged.

  Such a sponge may be formed, for example, in a cylindrical shape with a shaft in the center and a structure that rotates around the shaft. No power source is required, it is simple and easy to handle. This cylindrical sponge rotates following the movement of the contacting object, gives a slight stimulus (abrasion amplitude) to the surface of the object, and decomposes the dirt. That is, the rotation of the sponge and the moving distance of the cleaning surface are proportional, and unlike a method using power, no extra contact resistance is generated. The absence of excessive contact resistance between the rotation of the sponge and the cleaning surface also leads to less wear on the sponge. As a result, the sponge can withstand long-term use.

  Further, the strength of the contact resistance by the sponge can be selected from a method based on the contact pressure and a method suitable for the purpose by changing the contact angle of the cylindrical sponge. Depending on the angle of the sponge formed in a cylindrical shape, the direction of dirt decomposition (disassembled on the upper surface and decomposed downward) can be freely selected.

  Further, as described above, the target cleaning level can be set by making cracks in various angles into the sponge so that the sponge is crushed in various ways when in contact with the cleaning surface. That is, by changing the angle of cracks in the sponge, the contact resistance of the sponge to the vehicle can be adjusted to a value corresponding to the contamination or dirt of the vehicle. In addition, due to the interrupting shape of the cylindrical sponge, vibration is generated by the compression and twisting of the sponge, which promotes the decomposition of dirt.

  In conventional automatic cleaning devices, brushes, leather, rubber strings, etc. are processed and used like circular brushes. As described above, the brush is rotated by an electric motor at an appropriate rotation speed, and is brought into rotational contact with the vehicle surface for cleaning. In such a method, the scratches due to cleaning gradually scrape the top coat (metallic paint clear) of the vehicle painted surface, and the appearance is significantly damaged. For this reason, for example, luxury cars such as private cars require a hand-washing system to avoid the obstacles.

  The present inventor has been engaged in painting-related work for a long time and has empirically various facts as knowledge. The reason why the car wash system with a brush would cut the painted surface was examined again. In the current automatic cleaning apparatus, at the time of cleaning, the cleaning agent and the water repellent are operated with the same brush. Therefore, a gummy substance adheres to the tip of the brush as dirt. Such dirt is caused by sand or mud adhering to a gummy substance formed at the tip of the brush. With the sand and mud attached to the gum-like substance formed at the tip of the brush, the brush rotates and rubs the painted surface by rotating and contacting the object to be cleaned. As a result, the painted surface is shaved and the coated film thickness is significantly damaged.

  In order to improve the conventional brush cleaning method, the use of a feather brush, a soft nonwoven fabric, etc. is naturally considered. However, as far as the inventors have tried, none of them can escape from the occurrence of soiling of the gum-like substance due to the repetition of the detergent, wax, detergent and wax. That is, the gum-like substance is soiled. When the gum-like substance is contaminated, as described above, sand, mud or the like is adhered and the painted surface is damaged.

  Therefore, it was considered to use a detergent brush and a wax brush separately. Certainly, the occurrence of dirt is remarkably improved by changing to such a method. Naturally, the damage of the cleaning object is also remarkably improved. However, on the contrary, the equipment cost of the automatic cleaning device doubles, and the introduction of the automatic cleaning device itself becomes difficult. Normally, vehicle washing is accounted for in a sense in a department such as maintenance / maintenance costs. Now that cost reduction is screamed, maintenance costs are no exception. Of the budget that is cut down, the budget for maintenance and inspection departments related to safety cannot be cut.畢竟 Currently, the budget for cleaning is being cut down. Considering the situation at the site, an increase in equipment cost is a problem to avoid.

  Further, the above-mentioned scratch is not the only problem that causes troubles with brush cleaning. There is damage to the protruding parts. For example, in an automobile or the like, rotating the brush causes the brush to become entangled and damaged by a mirror, wiper, antenna or the like. Furthermore, the scratch is not completely eliminated.

  The rotating brush is rotated by a motor. For example, the sirocco fan for draining, the compressor for driving, the watering pump, etc., the slack power to be activated (small items used in general gas stations) It is said that it requires at least 200V and 22kW power. There is also a trial calculation that the required amount of water is about 180L per vehicle.

  As described above, the cleaning using the rotating brush has problems, damages, and cost problems. For example, the current situation is that it is not suitable for the trend of ecology. The present inventor considered that such a problem is caused by the fact that the chemical reaction technology is not incorporated in the basic concept in manufacturing the automatic cleaning apparatus. That is, in the conventional cleaning system, regarding the ability to decompose the detergent used for cleaning, the relationship between the pH (hydrogen ion index) and the concentration of the detergent caused by the dirt, the time setting from the application of the detergent to the removal of the dirt, the detergent Changes in dirt decomposition time due to the relationship between the concentration of the water and the temperature, adjustment of the concentration of the detergent according to the difference in water quality by region, adjustment of the concentration of the detergent according to the working time and adjustment of the concentration of the detergent according to changes in the temperature and humidity, etc. Is not made. The present invention relates to a cleaning technique that can avoid such problems. In a sense, it can also be said to be an economical cleaning technology that can be extremely energy-saving.

(Embodiment 1)
In the present embodiment, the cleaning tool used in the automatic cleaning apparatus according to the present invention will be specifically described. As shown in FIG. 1, the cleaning tool A described in the present embodiment has a cleaning tool body 10 whose outer shape is formed in a columnar shape. The columnar cleaning tool body 10 is basically formed of a material that can contain a liquid such as water. Such a liquid such as water has a function of discharging the liquid to the outside by pressing the cleaning tool main body 10. For example, it is formed so that it can ooze out. Such a substance is also an elastically deformable substance. An example of such a substance is sponge. Chemically synthesized sponges are used. Of course, as long as properties such as chemical resistance are suitable, an original sponge as a sponge may be used. That is, the cleaning tool body 10 is configured as a sponge roll 10a.

  As shown in FIG. 1A, the sponge roll 10a constituting the cleaning tool main body 10 is provided with a rotation shaft 20 in the core direction of the cylindrical body. For example, the rotating shaft 20 protrudes so that the end 20a protrudes to both ends of the cylindrical body as shown in FIG. Using the sponge roll 10a having such a configuration, the cylindrical body side surface is brought into contact with the object 30 to be cleaned. At the time of cleaning, the object to be cleaned is pressed by the sponge roll 10a with a predetermined pressure so that the cylindrical body side surface of the sponge roll 10a is in contact with the object 30 to be cleaned.

  In the case shown in FIG. 1B, it is assumed that the cleaning object 30 has moved from the right side to the left side as indicated by the arrow. The sponge roll 10a contacts there. The contacted sponge roll 10a is in contact with the cleaning surface 30a of the surface of the cleaning object 30 at a predetermined pressure, as shown in FIG. For example, the sponge roll 10 a is provided so as to be freely rotatable around the rotation shaft 20. That is, it is configured to rotate due to the contact resistance of the cleaning object 30 to the cleaning surface 30a. The sponge roll 10a itself does not cause any rotation. No drive device such as a motor is attached.

  In this state, when the sponge roll 10a comes into contact with the object 30 to be cleaned, the sponge roll 10a becomes a concave arcuate body 11a that is pressed with a predetermined pressure as shown in FIG. That is, as shown in FIG. 2 (a), the sponge roll 10a is contracted and dented by the contact pressure to the cleaning object 30, resulting in an arc-shaped body 11a. On the other hand, the portion where the contact pressure is recessed, that is, the contracted portion is also the arcuate body 11b as shown in FIG.

  As shown in FIG. 2 (a), the arcuate body 11a formed by being depressed by the pressing pressure is a length L1 of the string portion 12 forming the arcuate body 11a if the pressing force is constant. Is constant. With the length L1 of the chord portion 12 of the arcuate body 11a kept constant in this way, the sponge roll 10a is in frictional contact with the object to be cleaned 30 as shown by an arrow as shown in FIG. It is rotating. That is, it rotates at the same speed as the direction of movement of the cleaning object 30. As shown in FIG. 1B, when the end of the cleaning object 30 hits the stopped sponge roll 10 a, the sponge roll 10 a rotates with frictional resistance with the cleaning object 30. When rotating, one end point of the string portion 12 of the arcuate body 11a is a contact start point P of the rotating sponge roll 10a. On the other hand, the other end point of the chord portion 12 is a contact release point Q as shown in FIG. The center point 12M of the string portion 12 becomes the maximum pressure point M indicating the maximum pressing force.

  When dirt is attached to the cleaning surface 30a of the object 30 to be cleaned, the sponge roll 10a comes into contact with the dirt at the contact start point P. Thereafter, the contact pressure gradually increases, and the contact pressure becomes maximum at the maximum pressure point M. Thereafter, the contact pressure gradually decreases toward the contact release point Q. From the maximum pressure point M to the contact release point Q, the sponge roll 10a and dirt are gradually relieved of the pressing force in the contact state. While the contact pressure gradually decreases past the maximum pressure point M, the repulsion due to the elastic force of the sponge roll 10a gradually increases. At the contact release point Q, the contact pressure is released, and the repulsion is maximized.

  On the other hand, the sponge roll 10a is configured in a sponge shape with a small gap. For this reason, the arcuate body 11b contracted by the pressing force does not repel uniformly, but performs irregular repulsion based on the structure in the irregular gaps. Furthermore, the sponge roll 10 a rotates at the same speed as the object to be cleaned 30. As a result, on the contact surface between the object to be cleaned 30 and the sponge roll 10a, it is considered that an amplitude that is an extremely minute irregular motion is generated microscopically. It seems that such minute movements act as if they are lightly touched with a finger against dirt that cannot be removed by water pressure. As a result, dirt that cannot be removed by water pressure can be removed by bringing the sponge roll 10a into contact with the object to be cleaned 30 with a predetermined pressing force. Such a phenomenon is first seen in the sponge roll 10a of the present invention.

  As described above, the mechanism for removing dirt on the contact surface of the sponge roll 10a with the object to be cleaned 30 involves the movement based on the release of the repulsive force of the sponge roll 10a contracted with a predetermined pressing force. Seem. It is inferred that the movement based on the release of the repulsive force of the sponge roll 10a is involved in the escape and movement of the contracted arcuate body 11b. The distance of such escape and movement is based on the difference between the length L2 of the circumferential portion of the arcuate body 11b and the length L1 of the chord portion 12. The sponge roll 10a in contact with the cleaning object 30 is pushed by the cleaning object 30 between the contact start point P and the maximum pressure point M as shown in FIG. After the escape ends at the maximum pressure point M, the escape direction is from the maximum pressure point M to the contact release point Q toward the direction of travel of the object 30 to be cleaned. Move in the opposite direction of opening.

  Furthermore, when removing dirt that could not be removed even with high-pressure water by the sponge roll 10a, it is possible to avoid scratches that can be visually confirmed. Even if the same sponge roll 10a is used a plurality of times, the cleaning surface 30a of the cleaning object 30 is not scratched to the extent that it can be visually confirmed.

The magnitude of the contact pressure between the sponge roll 10a and the object 30 to be cleaned has an effect when removing dirt that could not be removed even with the high-pressure water. For example, the hardness is 11.0 to 17.0 kgf (107.9 to 166.7 N), the elongation is 250% or more, the tensile strength is 2.0 kg / cm ² (0.196 Mpa) or more, and the density is 0.026 g / cm ³ . In the case of using a sponge roll 10a formed in a cylindrical shape with a diameter of 1000 mm and a length of 2000 mm using polyurethane foam, the sponge roll 10 a has a length L1 of the string portion 12 of 300 mm with respect to the object to be cleaned 30. And pressed with a contact pressure of 0.67 kPa.

  Detailed investigations by the present inventors have revealed that the contact pressure, that is, the pressing force, is preferably 0.50 kPa or more and 0.70 kPa or less. More preferably, it was 0.55 kPa or more and 0.65 kPa or less. This is because if it is less than 0.50 kPa, the dirt may not be removed. This is because when it exceeds 0.70 kPa, depending on the state of the coating of the object to be cleaned, it has been confirmed that fine scratches that can be visually confirmed may occur. If it was 0.55 kPa or more and 0.65 kPa or less, the surface of the object to be cleaned was not damaged enough to be confirmed by visual confirmation with the naked eye.

  The actual contact pressure for the sponge roll 10a may be set as follows, for example. That is, as shown in FIG. 3A, one point on the side surface of the sponge roll 10a is pushed toward the center side with maximum pressure. If the distance S is the distance S from the center of the sponge roll 10a to the point R at the depression position, as shown in FIG. Can be defined. If the sponge roll 10a is recessed to such a distance S, it can be assumed that the maximum pressure M is applied. When the dent condition is recessed from the distance S, it can be estimated that a pressure higher than the maximum pressure M is applied. Alternatively, when the degree of depression is less than the distance S, it can be estimated that only a pressure smaller than the maximum pressure M is applied.

  For example, when the maximum pressure is indicated in the predetermined range as described above, the side surface of the sponge roll 10a is pushed at the upper limit value M1 of the maximum pressure as shown in FIGS. 3 (c) and 3 (e). Let the point of the dent position in the pressed state be R1. The distance from the center of the sponge roll 10a to the point R1 is S1. In this way, when the sponge roll 10a comes into contact with the object to be cleaned 30 and becomes an arcuate body 11a, if the distance to the center point 12M of the string portion 12 is S1, the contact pressure is the maximum pressure M1. It turns out that it is. Similarly, as shown in FIGS. 3D and 3F, the side surface of the sponge roll 10a is pushed at the maximum pressure upper limit M1. Let the point of the dent position in the pressed state be R2. The distance from the center of the sponge roll 10a to the point R2 is S2. In this way, when the sponge roll 10a comes into contact with the object to be cleaned 30 and becomes an arcuate body 11a, if the distance to the center point 12M of the string portion 12 is S2, the contact pressure is the maximum pressure M. It can be seen that it is M2, which is the lower limit value of.

  The present inventor attempted further improvement on the sponge roll 10a. That is, a modified example was considered. In FIG. 2 (b), it has been described that the escape and movement distance effectively acts on dirt removal that could not be removed even with high-pressure water. Therefore, basically, it was considered that if such escape and movement distance could be increased, it would be more effective for removing dirt. As shown in FIG. 2 (c), the idea was to make a cut 13 around the circumference of the arcuate body 11b crushed by the pressing force. By actually making the cut line 13, the range of escape movement was greatly expanded with respect to the difference between the circumferential length of the arcuate body 11b and the contracted length. That is, the smooth sponge roll 10a without the cut line 13 is connected to the surrounding part because the entire surface is connected in the rotation direction, but the distance of the escape movement is reduced by the connection with the surrounding part. In the roll 10a, the contact portion is not affected by the surroundings, so the range of escape movement is expanded.

  Therefore, the sponge roll 10a as the cleaning tool body 10 has, for example, a wedge-shaped cut 13a (13) as shown in FIG. It should be provided. Alternatively, as shown in FIG. 4 (b), the slit 13 may be formed into a slit-shaped slit 13b (13) without being formed into a wedge shape. Furthermore, as shown in FIG. 4C, the pitch may be changed appropriately by narrowing the adjacent pitch of the cut line 13b.

  Moreover, as shown in FIG. 5, the modification which provided the cut | interruption 14 in the side surface of the sponge roll 10a was considered. That is, a groove 14 is formed by making a cut 14 in a ring shape so as to cross the axial direction of the rotary shaft 20. On the side surface of the sponge roll 10a on the right side of the paper, a cut line 14a (14) is formed in a ring shape obliquely from the upper left of the paper to the lower right of the paper. A plurality of such cut lines 14a are provided in parallel at intervals. On the other hand, the sponge roll 10a on the left side of the paper is provided with a plurality of cut lines 14b (14) in parallel from the upper right of the paper to the lower left of the paper.

  By making a cut 14 in the sponge roll 10a, for example, when there is an adhering substance between the sponge roll 10a and the object to be cleaned 30, the adhering substance can be moved up and down along the axial direction of the rotary shaft 20. . Examples of such deposits include various things such as dirt or detergent. In the sponge roll 10a on the right side of the paper, for example, the detergent held on the sponge roll 10a with respect to the cleaning object 30 can be moved upward. Alternatively, in the sponge roll 10a on the left side of the paper, for example, the dirt on the surface of the cleaning object 30 can be moved downward.

  FIG. 4 shows a case where a plurality of cut lines 14 are provided in parallel. However, the oblique cut 14 may be formed in a spiral shape as shown in the modification of FIG. The sponge roll 10a on the right side of the drawing shows a case where the cut line 14c is provided in a spiral shape from the upper left of the drawing to the lower right of the drawing. In the sponge roll 10a on the left side of FIG. 6, the case where the cut line 14d is provided spirally from the upper right side to the lower left side of the paper is shown. The cut lines 14c and 14d that are between the sponge roll 10a and the cleaning object 30 and are not originally visible are indicated by broken lines.

  In the case of the configuration of the cut lines 14c and 14d, as shown in FIG. 6, it is noted that dirt, detergent, etc. between the sponge roll 10a and the object to be cleaned 30 move in the opposite direction to the case of FIG. Should. That is, the detergent that moves at the cut 14c moves downward as shown in the sponge roll 10a on the left side of the sheet of FIG. The dirt that moves at the cut line 14d moves upward as shown in the sponge roll 10a on the left side of FIG. FIG. 7 shows a case where the sponge roll 10a is provided with spiral cuts 14e (14) and 14f (14) parallel to the cuts 14c and 14d. In the figure, the cut lines 14e and 14f are indicated by two-dot chain lines.

  The case where there is a cut 13 provided in the axial direction of the rotary shaft 20 and a cut 14 provided so as to cross the rotary shaft 20 is shown on the right and left sides of the sheet of FIG. The case shown on the right side of the page is the case where the cut 14a is provided, and the left side is provided with the cut 14b. By providing the cut line 13 in the vertical direction and the cut line 14 in the oblique direction together, it becomes easier to remove dirt, and it becomes easier to move the dirt. For example, when the portion of the convex surface portion 30b that extends in the vertical direction provided on the object to be cleaned 30 is cleaned, the sponge roll 10a has a cut 13 provided in the axial direction of the rotary shaft 20, as shown in FIG. Therefore, it is possible to clean the corners of the convex portion 30b protruding from the cleaning surface 30a. Further, when the portion of the convex surface portion 30c that extends in the horizontal direction provided on the lower left side in FIG. 8 of the cleaning target 30 is cleaned, as shown in FIG. Accordingly, it is possible to clean the corners around the convex surface portion 30c which is deformed by the cut line 14 (14b) provided so as to cross the surface and protrudes from the cleaning surface 30a. Further, when the portion of the convex surface portion 30d extending in the horizontal direction provided on the upper right side in FIG. 8 of the object to be cleaned 30 is cleaned, as shown in FIG. Therefore, it is possible to clean the entire periphery of the convex surface portion 30d that is deformed by the cut 14 (14a) provided so as to cross the surface and protrudes from the cleaning surface 30a.

  In the case shown in FIG. 10, a modification of the installation angle of the sponge roll 10a is shown. In FIG. 5 etc., the case where the axial direction of the rotating shaft 20 of the sponge roll 10a is arranged in the vertical direction has been described as an example. That is, the installation angle is 90 degrees. However, changing the installation angle has an effect of increasing the rubbing resistance of the sponge roll 10a with respect to the object 30 to be cleaned.

  Assuming that the position where the sponge roll 10a first contacts the object 30 to be cleaned is on the line segment L3, the position where the sponge roll 10a comes into contact when moved and released is on the line segment L4 below the line segment L3. Therefore, the sponge roll 10a rubs against the object 30 to be cleaned by the distance B between the line segments L3 and L4. By increasing the distance B, it is possible to increase the rubbing resistance of the sponge roll 10a against the cleaning object 30. Note that the wear of the sponge roll 10a increases as the rubbing resistance increases, so the angle of the rotation shaft 20 of the sponge roll 10a is increased or decreased while observing the friction state, so that the distance B, that is, the sponge roll 10a with respect to the object to be cleaned 30 is increased. Rub resistance is adjusted.

  The case shown in FIG. 11 is a case where the brake shoe D is provided on the rotating shaft 20 in the configuration shown in FIG. In the present invention, basically, the sponge roll is configured to come into contact with the object to be cleaned by a predetermined pressing force and rotate by the contact resistance at that time. However, since the moving speed of the object to be cleaned is high, the sponge roll may not be sufficiently cleaned. Furthermore, it can be sufficiently assumed that the moving speed of the object to be cleaned cannot be reduced. In such a case, the rotational speed of the sponge roll is intentionally slowed by providing the brake shoe D. By intentionally delaying in this way, the contact friction between the object to be cleaned and the sponge roll can be increased. In this way, it is possible to easily remove dirt.

  12A and 12B show a case where the installation angle of the sponge roll 10a is tilted at an angle smaller than 90 degrees. The installation angle θ1 shown in FIG. 12A is set smaller than the installation angle θ2 shown in FIG. The difference between FIG. 12A and FIG. 12B appears as a difference in force applied to the object to be cleaned. That is, the force applied to the object to be cleaned is larger in the case of FIG. 12A than in the case of FIG. For example, with respect to dirt adhered with the same adhesion force, the sponge roll can be removed more easily by tilting the sponge roll as shown in FIG.

(Embodiment 2)
In the second embodiment, a case where an automatic cleaning device is configured using the sponge roll 10a which is the cleaning tool body 10 described in the first embodiment will be described.

  The configuration shown in FIG. 13A is a configuration in which sponge rolls 10a are provided on both sides of the track. The configuration shown in FIG. 13A is a diagram schematically and briefly showing the main points of the present invention. For example, it goes without saying that the configuration shown in FIG. 13A may actually be configured, for example, in an automatic cleaning apparatus having a conventional portal-type external configuration.

  In FIG. 13A, a pair of sponge rolls 10 a are provided on both sides of the line 50 so as to be separated by a predetermined distance. In such a configuration, the interval between the sponge rolls 10a is basically fixed and cannot be changed. The sponge roll 10a is rotatably provided on the rotary shaft 20. The sponge roll 10a is installed on the base 40 as shown in FIG. 13 (a), for example. Of course, without using the base 40, other members, or if there is no problem, can be installed directly on the ground surface.

  A vehicle 60 such as a train or a train passes between the pair of sponge rolls 10 a as the object to be cleaned 30 through the track 50. The interval between the pair of sponge rolls 10a is set to be narrower than the width of the vehicle 60 passing through the track 50, as shown in FIG. That is, the space between the sponge rolls 10a is previously narrowed so that the object to be cleaned 30 can come into contact with the vehicle 60. In FIG.13 (b), the vehicle of the washing | cleaning target 30 is displayed with the dashed-two dotted line so that this situation may be understood. The spacing between the sponge rolls 10a is set so that the side surface of the vehicle 60 of the cleaning object 30 can be contacted with a preset contact pressure.

  Such a contact pressure may be indicated by the maximum pressure at the maximum pressure point M. Such maximum pressure is 0.50 kPa or more and 0.70 kPa or less. More preferably, it is 0.55 kPa or more and 0.65 kPa or less.

  When the sponge roll 10a is provided with a cut 13 (13a, 13b) as shown in FIG. 4 or a cut 14 (14a-14f) as shown in FIG. 5 to FIG. 7, the contact pressure of the sponge roll 10a. Since the shape to be crushed changes, the contact pressure is changed depending on how the cut is made. The contact pressure, that is, the maximum pressure when the cuts 13 and 14 are provided in the sponge roll 10a is preferably in the range of 0.20 kPa to 0.50 kPa.

  If the maximum pressure is within such a range, dirt that could not be removed by blowing high-pressure water can be removed. In addition, by indicating the maximum pressure in a predetermined range in this way, it is possible to allow a certain change in the width of the vehicle 60 that is the cleaning object 30 entering between the sponge rolls 10a at regular intervals. The vehicle width is usually designed so that it can be changed within a certain allowable range according to a standard or the like.

  When such a measure is inappropriate, it can be easily dealt with by shifting the mounting position of the sponge roll 10a to the base 40. In some cases, the installation position of the sponge roll 10a on the base 40 may be configured to be variable from the beginning. Depending on circumstances, the position of the sponge roll 10a may be adjusted to optimize the contact pressure.

  FIG. 13C shows a state in which the vehicle 60 of the cleaning object 30 has entered between the sponge rolls 10a set at a predetermined interval as described above. Thus, in the state where the vehicle 60 enters between the sponge rolls 10a, the sponge roll 10a that contacts the cleaning surface side of the vehicle 60 is crushed with a predetermined contact pressure.

  The contact pressure is set within a predetermined range of the maximum pressure, but the compression state differs depending on the elastic modulus of the sponge roll 10a itself. Therefore, the upper limit value and the lower limit value of the maximum pressure may be set in a recessed state in which the side surface of the sponge roll 10a is pressed. That is, it may be set by the distance from the center of the sponge roll 10a to the recessed position when pressed at the upper and lower limits of the maximum pressure. In this way, it is easy to understand how the vehicle 60 to be cleaned enters between the sponge rolls 10a of the automatic cleaning device set so as to be able to contact the vehicle 60 of the cleaning target 30 with a predetermined contact pressure. FIG. 14 schematically shows a perspective view. In the figure, the shaded areas on the side of the vehicle indicate dirt that cannot be removed by blowing high-pressure water. It shows that the dirt on the side surface of the vehicle 60 is removed by passing through the sponge roll 10a.

  In the case shown in FIGS. 13 and 14, the sponge roll 10 a is provided as a pair on both sides of the line 50. However, depending on the situation of the object 30 to be cleaned, it can be sufficiently assumed that a detergent or the like is used. It is also conceivable to construct an automatic cleaning apparatus by considering the cleaning operation as a consistent flow so as to remove dirt with a detergent or the like and then press dirt that does not fall with high pressure water remaining after that. In such a case, for example, as shown in FIG. 15A, a plurality of sponge rolls 10a may be provided. The plurality of sponge rolls 10a are configured to have different uses. The plurality of sponge rolls 10a are sequentially set as sponge rolls 10a1 (10a), 10a2 (10a), and 10a3 (10a) as shown in FIG.

  The first sponge roll 10a1 applies a cleaning agent to the vehicle 60 of the object 30 to be cleaned. As shown in FIG. 15A, the sponge roll 10a1 is provided with a cut 14a (14) parallel to the side surface. Thus, by providing the cut | interruption 14a, a detergent can be apply | coated from the bottom to the top. Although not shown, a detergent supply main pipe is piped along the rotating shaft 20, and the detergent supply branch pipes are provided radially in the middle of the detergent supply main pipe. Detergent can be supplied to the peripheral surface of.

  In the second sponge roll 10a2, dirt is decomposed with a detergent applied to the side of the vehicle 60 of the object 30 to be cleaned. That is, the dirt is decomposed while rubbing the applied detergent on the cleaning surface. The sponge roll 10a2 is provided with a cut 14b (14) on the side surface at an angle opposite to that of the sponge roll 10a1 for applying detergent. The decomposed dirt is dropped downward.

  The third sponge roll 10a3 is not provided with a cut 14 on the side surface. The sponge roll 10a3 has a role of washing away detergent and dirt with water. The sponge roll 10a3 is configured such that a water supply main pipe is provided along the rotary shaft 20, and water supply branch pipes are provided radially from the water supply main pipe so that water can be supplied to the peripheral surface of the sponge roll 10a3. .

  As shown in FIG. 15B, the sponge rolls 10a1 and 10a2 having such a configuration may be provided to be inclined along the moving direction of the object 30 to be cleaned. In the case shown in FIG. 15B, the sponge roll 10a1 and the sponge roll 10a2 are provided so as to be tilted in directions opposite to each other.

As described above, various modifications of the automatic cleaning apparatus are conceivable depending on how the sponge roll 10a is installed. Such an automatic cleaning device can be applied to cleaning trains, trains, shared cars, buses, and the like. Except for the case of using rails such as trains and trains, the cleaning line may be provided with an automatic feeding device such as a belt conveyor that automatically feeds the object to be cleaned between sponge rolls. In this way, it is not necessary to move the sponge roll.
Of course, as with vehicles such as trains and trains, objects to be cleaned such as shared cars and buses may be moved.

  In the above description, when cleaning a vehicle such as a train, the configuration of the main part of the configuration of the automatic cleaning apparatus is schematically illustrated, but although not illustrated, it may be configured in a gate shape. It is preferable to install two or three gates, with the first gate set to apply detergent, the second gate to decompose dirt, and the third gate to water wash. Further, in the department of applying the detergent and decomposing the dirt, the detergent hangs down from the object to be cleaned. That is, surplus detergent is generated.

  However, the detergent may not be dropped and discarded, but may be recycled, for example, to the sponge roll 10a1 after being collected and removed from the sand. For example, although not shown, a liquid pipe and a waste liquid reservoir are provided in a portion of the cleaning tool body 10 that does not contact the object to be cleaned 30, and the waste liquid used for cleaning stored in the waste liquid reservoir is supplied to the detergent supply branch pipe through the liquid pipe. It may be configured to return to the peripheral surface of the sponge roll 10a1 again. In addition, the waste liquid is supplied from the waste liquid reservoir to the liquid pipe without using an electric pump or the like, but with the object to be cleaned 30 such as a pump driven by the rotation of the sponge roll 10a1 performed in contact with the object to be cleaned 30. You may comprise so that it may circulate with the energy of the sponge roll 10a1 rotated by contact.

  In addition, as shown in FIG.15 (b), when the sponge roll 10a is given a predetermined angle, or when cuts 13 and 14 are provided, the sponge roll 10a is washed according to the angle and the cut. The contact pressure with respect to the object 30 is adjusted as appropriate.

  In this way, by installing the detergent so as not to be discharged to the outside as much as possible, extra environmental pollution can be prevented. In addition, use a detergent that has passed the hydrogen vulnerability test. In an apparatus that circulates detergent, the dirt particles are filtered. If the cleaning ability is inferior, a new detergent may be automatically added as appropriate.

  As shown in FIG. 15B and the like, in the angle adjustment of the sponge roll, the sliding resistance increases when the angle with respect to the moving object is increased. When the angle is reduced, the sliding resistance is lowered. In this way, by appropriately adjusting the angle, it is only necessary to change the sliding resistance according to the speed of the moving object of the object to be cleaned so that appropriate cleaning can be performed.

  FIG. 16 shows a case where the automatic cleaning device is applied to a private car. For example, as shown in FIG. 16, an automatic cleaning device can be installed in a garden at home. It can be installed next to a parking space provided in the garden. Basically, since the power for rotating the sponge roll 10a is unnecessary, the sponge roll 10a itself can be lightened. As a result, the automatic cleaning device itself can also be configured to be portable. Therefore, it can be installed by individuals for private use. For example, it may be placed next to a parking space and installed as necessary. Until now, basically, it has not been done for individuals to have automatic cleaning equipment.

  As shown in FIG. 17A, the automatic cleaning apparatus having such a configuration may be configured to pass between the sponge rolls 10a when, for example, an automobile is put in a parking space in the back. As shown in FIG. 17 (b), when passing between the sponge rolls 10a, the dirt shown by shading is removed.

  In the above description, the automatic cleaning apparatus of the present invention has been described with respect to a case where a vehicle, an automobile, or the like is the object to be cleaned. However, for example, as shown in FIG. Of course, it can be used. As a material, in addition to a square bar, as shown in FIG. In the case shown in FIGS. 18A and 18B, a plurality of sponge rolls 10a are used to form a frame. By passing the square or round material through the frame of the frame-shaped sponge roll 10a, the sponge roll can be brought into contact with the side surface with a predetermined contact pressure to remove dirt. However, since the shape member having a round cross section such as a round material also has a portion where the sponge roll does not come into contact, it may be passed through the sponge roll frame again as necessary, for example, by rotating the circular cross section. .

In the configuration shown in FIGS. 18A and 18B, basically, a plurality of sponge rolls 10a are combined in a frame shape, and a square or round material that is the object to be cleaned 30 is passed through the frame. It was the structure to wash | clean. This is a case where the square bar or round bar itself is relatively small and can pass through the space constituted by the sponge roll. However, it may be large enough that it cannot pass through the frame.
In such a case, a configuration in which cleaning is performed without using a plurality of sponge rolls and without passing through the frame is also conceivable.

  For example, as shown to Fig.19 (a), it is the structure which moves by itself, while a sponge roll contacts the side surface of a square with a predetermined pressing force. When moving by itself, of course, the sponge roll 10a automatically rotates by contact friction with the object 30 to be cleaned. Alternatively, in the case shown in FIG. 19 (b), the sponge roll 10 a is stretched over a rectangular frame 70 provided in a relative manner. The sponge roll 10a is provided with a guide member 71 that moves on one frame 70 by a motor or the like. The guide member 71 is configured so that the side surface of the object to be cleaned fixed in the frame 70 can be cleaned. In the case shown in FIGS. 20A and 20B, the square shape of the configuration shown in FIGS. 19A and 19B is changed to a round shape.

  As described above, since the automatic cleaning apparatus used in the present invention has the sponge roll 10a, unlike the case of using the conventional rotary brush 100 as shown in FIG. 21, for example, the object to be cleaned is damaged. The dirt that could not be removed without spraying with high-pressure water can be removed cleanly.

  As a modification of the cleaning tool body 10 used in the present invention, a configuration different from the sponge roll 10a was considered. That is, the cleaning tool main body 10 may be configured as a spherical sponge 200 as shown in FIG. In such a configuration, for example, as shown in FIG. 22B, the entire sphere of the spherical sponge 200 is held so as to be freely rotatable in a cover 201 provided so as to cover a hemisphere. The configuration shown in FIG. 22C shows the state of the cross section of the spherical sponge 200. If the spherical sponge 200 is moved in contact with the object to be cleaned 30 with a predetermined contact pressure, as shown in FIG. 22 (d), dirt can be removed in the same manner as described above.

(Embodiment 3)
In this embodiment, a method for cleaning using the automatic cleaning apparatus described in the above embodiment will be described. This is a technique that can be effectively applied when a detergent is used when washing using the automatic washing apparatus. A feature of the cleaning method described in this embodiment is that the detergent is attached to the cleaning object from the bottom to the top of the cleaning object.

  As shown to Fig.15 (a), a detergent can be apply | coated to a washing | cleaning target object from the bottom upwards by providing the cut | interruption 14a (14) parallel to the side surface of the sponge roll 10a. When the detergent is applied to the object to be cleaned first from the top, the applied detergent hangs down and it becomes difficult to visually observe the dirt on the part where the dirt has not yet been removed. On the other hand, by applying the detergent from the bottom to the top, the dirty part can be surely visually observed.

  In addition, the excess detergent, that is, the waste liquid dripping from the object to be cleaned and stored in the waste liquid reservoir, is returned to the detergent supply branch through the liquid pipe by the pump driven by the sponge roll 10a1 that rotates in contact with the object to be cleaned 30. . Thus, the waste liquid can be circulated reusably with the rotational energy of the sponge roll 10a1 without using an electric pump or the like.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  INDUSTRIAL APPLICATION This invention can be effectively used in the washing | cleaning field | area which removes the stain | pollution | contamination which does not fall by spraying high-pressure water, without scratching, when it looks at a washing | cleaning target object visually.

DESCRIPTION OF SYMBOLS 10 Cleaning tool main body 10a Sponge roll 10a1 Sponge roll 10a2 Sponge roll 10a3 Sponge roll 11a Arc-shaped body 11b Arc-shaped body 12M chord part 12M Center point 13 Cut 13a Cut 13b Cut 14 Cut 14a Cut 14d Cut 14d Cut 14c Cut 14c Cut 14c Cut 14c Cut 14c Cut 14c Cut 14c Cut 14c DESCRIPTION OF SYMBOLS 20 Rotating shaft 20a End part 30 Object to be cleaned 30a Cleaning surface 30b-30d Convex part 40 Base 50 Line 60 Vehicle 70 Frame 100 Rotating brush 200 Spherical sponge 201 Cover A Cleaning tool B Distance P Contact start point Q Contact release point M Maximum pressure Point M1 Upper limit value M2 Lower limit value R point R1 point R2 point S distance S1 distance S2 distance

Claims (16)

A cleaning tool having a cleaning tool body for cleaning the cleaning object in contact with the cleaning object,
The cleaning tool main body is formed of an elastic member and can rotate by contact with the object to be cleaned without rotating by itself. The cleaning tool according to claim 1,
The said cleaning tool main body is formed in the cylindrical body which can rotate the axis | shaft which contacts the said washing | cleaning target object by a side surface, The cleaning tool characterized by the above-mentioned. The cleaning tool according to claim 2,
The columnar body is provided with a cut in the surface that contacts the object to be cleaned. The cleaning tool according to claim 3,
The said cut | interruption is provided along the axial direction of the said cylindrical body, The cleaning tool characterized by the above-mentioned. The cleaning tool according to claim 3,
The said cut | interruption is provided in the crossing direction with respect to the axial direction of the said cylindrical body, The cleaning tool characterized by the above-mentioned. The cleaning tool according to any one of claims 1 to 5,
The cleaning tool, wherein the elastic member is a sponge. An automatic cleaning device having a cleaning tool body for cleaning the cleaning object in contact with the cleaning object,
The cleaning tool body is formed of an elastic member, and is provided so as to be rotatable with respect to the shaft by contact with the cleaning object without rotating by itself.
An automatic cleaning apparatus, wherein the cleaning tool body is brought into contact with the object to be cleaned at a contact pressure in a range of 0.50 kPa to 0.70 kPa. An automatic cleaning device having a cleaning tool body for cleaning the cleaning object in contact with the cleaning object,
The cleaning tool body is formed into a cylindrical body that can rotate with respect to the shaft by contact with the object to be cleaned without rotating by itself by an elastic member,
The cylindrical body is provided with a cut in the surface that contacts the object to be cleaned,
An automatic cleaning apparatus, wherein the cleaning tool main body is brought into contact with the object to be cleaned at a contact pressure in a range of 0.20 kPa to 0.50 kPa. The automatic cleaning apparatus according to claim 7 or 8,
The automatic cleaning apparatus, wherein the cleaning tool main body is provided so as to be able to sandwich the object to be cleaned therebetween. In the automatic washing device according to any one of claims 7 to 9,
The automatic cleaning apparatus, wherein the cleaning tool main body is provided with the shaft at an angle of less than 90 degrees not including 0 degrees with respect to the moving direction of the cleaning object. In the automatic washing device according to any one of claims 7 to 10,
The automatic cleaning apparatus, wherein three or more cleaning tool bodies are provided. In the automatic washing apparatus according to any one of claims 7 to 11,
The cleaning tool main body is provided with a liquid pipe and a waste liquid reservoir in a portion that does not contact the object to be cleaned, and the waste liquid of the liquid used for cleaning stored in the waste liquid reservoir is brought into contact with the object to be cleaned. The automatic cleaning device is characterized in that it is used again in the main body of the cleaning tool with the energy rotating at In the automatic washing device according to any one of claims 7 to 12,
The automatic cleaning apparatus, wherein the cleaning tool body according to any one of claims 1 to 6 is used in the cleaning tool body. A cleaning method using a cleaning tool main body for cleaning the cleaning object in contact with the cleaning object,
The cleaning tool body is formed of an elastic member, and is rotated by contact with the object to be cleaned without rotating by itself.
The cleaning method, wherein the detergent attached to the contact portion of the cleaning tool main body with the object to be cleaned is applied from the lower side to the upper side of the object to be cleaned. The cleaning method according to claim 14,
Of the detergent applied to the object to be cleaned, the surplus detergent hanging from the object to be cleaned is reused in the main body of the cleaning tool. The cleaning method according to claim 15, wherein
For the reuse of the surplus detergent in the cleaning tool body, energy generated when the cleaning tool itself is rotated by contact with the object to be cleaned without rotating by the cleaning tool body itself is used. A cleaning method characterized by being recycled so as to be reusable.

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