Vehicle salt content measurement method and vehicle cleaning test method using the same

Abstract

To provide a salt measurement method capable of easily measuring the amount of salt sticking on a vehicle.SOLUTION: Provided is an antifreeze scattering vehicle, in which a test-piece 21 which can be attached to and detached from it by means of a permanent magnet 23 is used, and after the antifreeze scattering vehicle is operated with the test-piece 21 fitted to a chassis frame of the antifreeze scattering vehicle, the test-piece is detached to acquire the amount of sticking salt from an outer surface 22 of the test-piece 21 detached from the antifreeze scattering vehicle, so a sample sticking on the antifreeze scattering vehicle need not be sampled and the amount of salt sticking on the antifreeze scattering vehicle having been operated actually can be easily acquired. The test-piece 21 is detached after the antifreeze scattering vehicle is washed with the test-piece 21 fitted, and the amount of sticking salt is acquired from the outer surface 22 of the test-piece 21 detached from the antifreeze scattering vehicle, so the sample sticking on the antifreeze scattering vehicle need not be sampled and the amount of sticking salt after the washing can be easily acquired.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle salt content measurement method and a vehicle washing test method using the same. [Background technology]

[0002] BACKGROUND ART Conventionally, in relation to snow removal, a method and an apparatus for detecting the salt concentration on a road to ensure the effectiveness of snow-melting agent spread to prevent freezing are known (for example, Patent Document 1).

[0003] On the other hand, vehicles that travel on roads where salt-containing de-icing agents have been spread, regardless of whether they are passenger cars or snowplows, are susceptible to corrosion due to the effects of salt, and the salt that has accumulated on the vehicle is removed by washing. In particular, as shown in Figure 14, an antifreeze sprayer 1 has a driver's seat 3 located at the front of a chassis frame 2, and is subject to repeated twisting and bending of the chassis frame 2 during operation, which can cause cracks in the paint film and lead to rust, so the salt that has accumulated on the vehicle must be removed by washing. Note that the twisting is exaggerated in Figure 14.

[0004] Furthermore, to confirm the effectiveness of salt removal by washing, the amount of salt adhering to vehicles is measured. For example, in measuring the salt content of a wet salt-spreading vehicle, after washing the vehicle after spraying, an operator puts on vinyl gloves that have been washed with deionized water, moistens a piece of gauze of appropriate size with deionized water, wipes the measurement point on the vehicle body vertically and horizontally with the gauze, and absorbs a sample of salt-containing water into the gauze. This procedure is repeated multiple times, and the gauze with the absorbed salt-containing sample is placed in a beaker containing deionized water. An ion detector tube is then placed in the beaker and the salt concentration is measured using the ion detector tube.

[0005] However, the above measurement method requires wiping the measurement area of ​​the vehicle body with gauze to collect samples, which is a labor-intensive process. Furthermore, there is a risk of measurement errors due to variations in the amount of samples collected by different workers. Furthermore, it can be difficult to collect samples in narrow areas that are susceptible to salt, such as the underside of the vehicle body, inside the chassis frame, or in complex areas where various sensor wiring and air brake air piping are located.

[0006] In contrast to this, as a device for measuring the salt concentration on the surface of a steel structure, which is different from a vehicle, as shown in Japanese Patent No. 3912776, Japanese Utility Model Publication No. 4-5003 and the specification of U.S. Patent No. 6946844, a device is known in which a detection unit having a liquid holding chamber is brought into contact with the surface of the steel structure to be detected, pure water for salt extraction is supplied to the liquid holding chamber, the pure water is stirred using a stirrer provided in the liquid holding chamber to dissolve and extract the salt from the surface to be detected, and the electrical conductivity of the liquid is then measured to measure the salt concentration on the surface of the steel structure. For example, a salt concentration measuring instrument with a simple and sturdy structure that can quickly and accurately measure the salt concentration attached to the surface to be detected includes a device main body that is equipped with an operation panel and display unit together with a processing unit, and a device connected to the device main body. Patent Document 2 proposes an electrical conduction type salinity measuring device for a structure surface, which comprises a liquid holding chamber having an opening at one end that receives and holds pure water for salt extraction during salinity measurement, a liquid supply flow path that supplies pure water to the liquid holding chamber, an air vent flow path that exhausts air from the liquid holding chamber when pure water is supplied, a stirrer that stirs the liquid in the liquid holding chamber, and a salinity measurement sensor with its detection end exposed inside the liquid holding chamber that measures the electrical conductivity of the liquid in the liquid holding chamber, wherein the stirrer causes the pure water for salt extraction to be sprayed directly toward the detection surface of the structure surface, and causes the liquid in the liquid holding chamber to flow in the direction of its stirring axis so as to create a flow that brings the pure water into contact with the entire detection surface.

[0007] In addition, in the salinity measuring device, a sealing member such as an O-ring made of silicone rubber or the like is provided around the opening of the liquid holding chamber, and a permanent magnet is further disposed on the outside of the sealing member. As a result, when the detection unit is brought into contact with the detection surface of the steel structure, the permanent magnet secures the detection unit to the steel structure. Furthermore, at this time, the liquid holding chamber is kept liquid-tight by the sealing member, so the amount of salt per unit area on the detection surface can be obtained from the area of ​​the opening and the measured salinity concentration.

[0008] The above-mentioned salt measuring device can measure salt concentration quickly and accurately, but if moisture remains on the surface to be detected, the measurement accuracy decreases, so the outer surface of the vehicle body, which is the surface to be detected, must be kept dry.

[0009] Furthermore, because snow removal vehicles such as the wet salt spreader operate during snowfall, it is often the case that snow continues falling even after the vehicle returns to the snow removal base after operation. For this reason, even if the snow removal vehicle is washed using a large vehicle washer after operation and then dried after washing, it is sometimes difficult to dry. For this reason, in bad weather, it can take as long as a day for the vehicle body to dry, which poses the problem of the vehicle being unable to operate during that time in order to measure the amount of salt adhesion. Furthermore, there is also the problem that the detector cannot enter narrow spaces in the vehicle body, resulting in many areas that cannot be measured. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-35686 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-151465 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0011] The problem to be solved is to provide a vehicle salt measurement method that can easily measure the amount of salt adhesion on a vehicle, and also to provide a vehicle cleaning test method that can effectively reduce the amount of salt adhesion. [Means for solving the problem]

[0012] The invention of claim 1 uses a test piece that can be attached and detached to a vehicle, 2 sheets The test piece is Arranged in one part of After installation and operation of the vehicle, On the other hand The test piece Before washing the vehicle Removed and removed from the vehicle On the other hand Obtain the amount of salt attached from the outer surface of the test piece The vehicle is washed with the other test piece attached, and after the washing, the other test piece is removed, and the amount of salt adhesion is measured from the outer surface of the other test piece removed from the vehicle. It is characterized by:

[0013] Claim 2 The invention is characterized in that the test piece is removed from the vehicle, dried, and then the amount of salt adhesion on the outer surface of the test piece is obtained using an electrical conduction type salinity concentration meter.

[0014] Claim 3 The invention is characterized in that the test piece is provided with a magnet means that is detachably attached to the vehicle.

[0015] Claim 4 The invention is Article 1 Using the vehicle salt content measurement method described above, washing was performed under different washing conditions, and after washing, The aforementioned The method is characterized by obtaining the amount of salt adhesion on the outer surface of the test piece. [Effects of the Invention]

[0016] According to the configuration of claim 1, there is no need to collect a sample of salt adhering to the vehicle, and the amount of salt adhering to the vehicle after it has actually been in operation can be easily obtained.

[0017] Also, Claim 1 According to this configuration, the amount of salt adhering to the vehicle that has been washed after operation can be obtained. Then, for each part, the amount of salt adhesion after operation and the amount of salt adhesion after operation and cleaning are obtained, and by comparing the two, it is possible to set appropriate cleaning conditions.

[0018] Claim 2 According to the configuration of (1), the amount of salt adhering to the vehicle can be easily obtained in a short time by using an electrical conduction type salinity concentration meter and drying the removed test piece.

[0019] Claim 3 According to the configuration of (1), the test piece can be detachably attached to the vehicle by the magnet.

[0020] Claim 4 According to the configuration of (1), the optimum cleaning conditions at the test site can be set based on the amount of salt adhesion under different cleaning conditions obtained through testing. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a side view of a vehicle showing a first embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 10 is a perspective view of the test piece and the magnet means. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 10 is a block diagram of a second embodiment of the present invention. [Figure 9] FIG. 10 is a block diagram of a third embodiment of the present invention. [Figure 10] FIG. 10 is a side view showing the test piece attached to the test piece. [Figure 11] FIG. 1 is a block diagram of a first embodiment of the present invention. [Figure 12] FIG. 10 is a block diagram of a second embodiment of the present invention. [Figure 13] FIG. 10 is a side view of a cleaning nozzle showing a third embodiment of the present invention. [Figure 14]FIG. 10 is a perspective view illustrating twisting of the chassis frame. DETAILED DESCRIPTION OF THE INVENTION

[0022] Preferred embodiments of the present invention will be described with reference to the accompanying drawings. Note that the embodiments described below do not limit the content of the present invention as defined in the claims. Furthermore, not all of the configurations described below are necessarily essential requirements of the present invention. [reference Example 1 ]

[0023] The present invention Reference showing the basic configuration Example 1 will be described with reference to Figures 1 to 7. Note that the same parts as in Figure 14 above will be described with the same reference numerals. Figure 1 shows an antifreeze agent spreader 1 serving as a vehicle, with a driver's seat 3 provided at the front of a vehicle body 4, and a loading platform 5 provided on a chassis frame 2 behind the driver's seat 3, with an antifreeze agent spreader 6 mounted on the loading platform 5. This antifreeze agent spreader 6 has a spreader unit 8 provided below and rear of a hopper 7, and front wheels 9 and rear wheels 10, 10 serving as traveling means provided below the loading platform 5. Furthermore, a plow 11 serving as snow removal means is provided in front of the driver's seat 3 as needed, and this plow 11 may be detachably attached to the vehicle body 4.

[0024] As shown in Fig. 2, the chassis frame 2 is a steel ladder-shaped frame that includes a pair of left and right side rails 2L, 2R that are long in the front-rear direction, and multiple cross members 2C that connect the pair of left and right side rails 2L, 2R in the vehicle width direction, and is coated with an anti-rust paint. Also, as shown in Fig. 3, the side rails 2L, 2R are made by overlapping and welding two U-shaped steel members 12, 12A together and then painting them, and there are some surfaces where cracks are likely to occur in the paint film due to the influence of twisting and bending of the chassis frame 2. The left and right side rails 2L, 2R are arranged with the U-shaped openings facing the center in the vehicle width direction.

[0025] The present invention is not limited to snow removal related vehicles such as the antifreeze sprayer 1, but can be applied to various types of vehicles, including passenger cars, buses, trucks, and other vehicles for transporting passengers and cargo, snow removal related vehicles such as snow removal trucks (snow plows) equipped with the antifreeze sprayer and snow removal means, vehicles related to snow removal and construction and civil engineering works, and trains that run on tracks.The present invention may be applied to vehicles that are not self-propelled but are moved by towing, and the running means may be other than wheels, such as crawlers.

[0026] As shown in Figure 6, as an example, when the vehicle is an antifreeze sprayer vehicle 1, the salt measurement method for obtaining the amount of salt adhesion attached to the vehicle body 4 includes an attachment process (S101) for removably attaching test pieces 21 to multiple locations on the outer surface of the vehicle body 4, an operation process (S102) for operating the antifreeze sprayer vehicle 1 after attaching the test pieces 21 to the vehicle body 4, a cleaning process (S103) for cleaning the sprayer vehicle 1 with the test pieces 21 attached, a removal process (S104) for removing the test pieces 21 from the sprayer vehicle 1 after the cleaning process (S103), and a salt adhesion amount obtaining process (S105) for obtaining the amount of salt adhesion from the outer surface 22 of the test pieces 21 in the removed state.

[0027] As shown in Fig. 4, the test piece 21 is made of a flat metal plate made of mild steel, such as SS400. The test piece 21 has length and width dimensions of 110 mm x 110 mm and a thickness of 0.1 to 1 mm (0.1 or more and 1 or less), preferably 0.2 to 0.4 mm, and at least an outer surface 22 of the test piece 21 is provided with a paint layer by painting. In this case, the paint on the test piece 21 is preferably similar to the paint on the vehicle body 4, and in the case of an antifreeze sprayer 1, which is a snow removal vehicle, a similar vehicle yellow paint is applied.

[0028] A permanent magnet 23 is provided as an attachment means for detachably attaching the test piece 21 to a magnetic metal part of the vehicle body 4. The permanent magnet 23 is disk-shaped, with a diameter of, for example, 23 mm and a thickness of approximately 2.5 mm. The permanent magnet 23 is attached to the center of the inner surface of the test piece 21. In this example, the permanent magnet 23 is selected so that the permanent magnet 23 remains on the vehicle body 4 even when the test piece 21 attached to the vehicle body 4 by the permanent magnet 23 is removed.

[0029] Adsorption tests were conducted multiple times using different test pieces 21 and permanent magnets 23, and a permanent magnet 23 with a magnetic flux density (magnetic force strength) of 90 to 190 millitesla (900 to 1900 gauss) was selected.A test piece 21 with dimensions of 110 mm x 110 mm and a thickness of 0.3 mm was selected, and it was possible to repeatedly attach and detach only the test piece 21 while the permanent magnet 23 was attached to the vehicle body 4.

[0030] The combination is not limited to the above, and the combination of the dimensions and material of the test piece 21 and the size and magnetic force of the permanent magnet 23 can be set so that the permanent magnet 23 remains on the vehicle body 4 even when the attracted test piece 21 is removed. Furthermore, the permanent magnet 23 may be fixed to the vehicle body 4 by adhesive or the like.

[0031] Therefore, once the permanent magnet 23 is attached to the vehicle body 4, the test piece 21 can be attached repeatedly to the same position as long as the permanent magnet 23 is not removed from the vehicle body 4. In this case, the vehicle body 4 includes the antifreeze agent spraying device 6 and plow 11 mounted on the loading platform 5, and all parts except for the front wheels 9 and rear wheels 10, which are the driving means of the vehicle, i.e., the antifreeze agent spraying vehicle 1, can be selected and attached.

[0032] In the mounting step (S101), the test pieces 21 are mounted at multiple locations on the vehicle body 4, and in particular, multiple test pieces 21 are mounted at intervals in the front-to-rear direction on the chassis frame 2 that constitutes a part of the vehicle body 4. The test pieces 21 may be mounted not only on the underside of the chassis frame 2 but also on the outer surfaces 2G, 2G of the side rails 2L, 2R on the outer sides in the vehicle width direction, the inner surfaces 2N, 2N of the side rails 2L, 2R on the inner sides in the vehicle width direction, or the cross member 2C. In addition to the chassis frame 2, the test pieces 21 may be mounted on the underside of the cargo bed 5, a drive unit case (not shown) that is part of the vehicle body 4, for example, a differential case or tire housing (not shown) under the floor of the vehicle body 4, etc.

[0033] In either case, the test piece 21 is attached to an exposed outer surface of the sprayer vehicle 1 with its outer surface 22 facing outward. Furthermore, the test piece 21 can be attached not only under the floor but also to the outer surface of the driver's seat 3 or cargo bed 5, or to the outer surface of the antifreeze sprayer 6 or plow 11 mounted on the sprayer vehicle 1. Then, corresponding to the multiple mounting positions on the antifreeze sprayer vehicle 1 which is a vehicle, identification display portions 24 such as numbers or symbols indicating the mounting positions are provided on the outer surface 22 of the test piece 21.

[0034] For example, if there are N vehicles (N is an integer) to be measured and M attachment locations (M is an integer), then "NM" is written as an identification marking 24 at a corner of the outer surface 22 of the test piece 21, as shown in Fig. 4, where N is the vehicle number marking and M is the attachment location marking. This identification marking 24 makes it possible to identify the vehicle on which the test piece 21 is used and the attachment locations.

[0035] In the operation process (S102) following the installation process (S101), salt-containing antifreeze is sprayed onto the road using the antifreeze spraying device 6 while the vehicle is moving, snow is removed from the road where antifreeze has been sprayed using the plow 11, and the vehicle is driven along the road where salt-containing antifreeze has been sprayed, causing salt to adhere to the outer surface of the spraying vehicle 1, and similarly causing salt to adhere to the outer surface 22 of the test piece 21 attached to the outer surface of the spraying vehicle 1.

[0036] After returning to a snow removal base or the like, the antifreeze spraying vehicle 1 is washed with the test piece 21 attached. This washing step (S103) can be performed using a portal-type vehicle washing device 31 or a washing device (not shown) that sprays washing liquid from the tip of a washing nozzle, with the worker holding the washing nozzle to perform the washing. In this way, the outer surface of the test piece 21 can be washed under the same conditions as the outer surface of the vehicle.

[0037] In the washing step (S103), test washing conditions are determined to determine the optimum washing conditions for each vehicle so as to reduce the amount of salt adhesion. As an example, the test washing conditions using the vehicle washing device 31 and the washing device are shown in Table 1 below.

[0038] [Table 1]

[0039] As shown in Table 1 above, for the wash water spray direction in test item (1), the washing conditions include selecting downward, sideways, upward, diagonal, and other different directions for the direction of the wash nozzle (described later). For the wash water spray pressure in test item (2), the conditions include setting the wash water spray pressure to 1 atmosphere, 2 atmospheres, 3 atmospheres, and other different pressures in gauge pressure, and spraying the wash water. For the wash water spray time in test item (3), the conditions include setting the wash water spray time to 1 minute, 2 minutes, 3 minutes, and other different times. For the wash water temperature in test item (4), the conditions include setting the wash water temperature to 5°C, 20°C, 40°C, and other different temperatures. For the type of wash water in test item (5), the conditions include selecting groundwater, drinking water, water with antifreeze added, and other different waters for washing. Note that for the diagonal direction of the wash water spray, the angle of the wash nozzle direction may be set more precisely.

[0040] 7, a gate-shaped vehicle washing apparatus 31 is used, which includes left and right frame members 32L, 32R and an upper frame member 33 spanning the upper portions of the left and right frame members 32L, 32R. The left and right pipes 32H, 32H of the left and right frame members 32L, 32R are provided with a plurality of washing nozzles 32N aligned vertically, the upper pipe 33H of the upper frame member 33 is provided with a plurality of washing nozzles 33N aligned laterally in the vehicle width direction, and the lower pipe 34H is provided with a plurality of washing nozzles 34N aligned laterally in the vehicle width direction. The direction of spraying washing water can be changed by changing the orientation of the washing nozzles 32.

[0041] 7, the spray direction of wash water W from wash nozzle 33N is set downward, wash nozzle 34N is set upward, and the spray direction of wash water W from the multiple left and right wash nozzles 32N, 32N is set horizontally from top to bottom at 24 degrees downward, 18 degrees downward, 12 degrees downward, 6 degrees downward, 0 degrees, and 5 degrees upward from the horizontal, but the spray direction of wash water W can be changed and set as appropriate without being limited to this. Similarly, the upper and lower wash nozzles 33N, 34N lined up in the vehicle width direction (left and right) may be set so that the spray direction is changed diagonally depending on the left and right position.

[0042] For the wash water, one of the conditions in test item (2) for the wash nozzle is selected. In this case, the same spray pressure may be set for all wash nozzles 32N, 33N, and 34N, or different spray pressures may be set for each of the pipes 32H, 33H, and 34H. Also, for the wash water to be used, one of the conditions in test items (4) and (5) above may be selected. Note that the spray time of wash water in test item (3) is the time it takes for a vehicle to pass through the vehicle wash device 31.

[0043] Test item (3) and other items may be restricted by the location where the vehicle washing device 31 is used. One restriction on the location of use is the inability to install a large-capacity tank to store washing water. Reasons for this include the fact that areas requiring snow removal vehicles are often mountainous regions, it is difficult to make the tanks larger in mountainous regions, and even if it were possible to make the tank larger, it would be difficult to install it due to the cost, and maintenance would also be difficult due to the cost. When there are restrictions due to the location of use, the test items are changed to suit the location of use and tests are conducted to determine the optimal washing conditions.

[0044] That is, in locations where there are restrictions on the amount of wash water that can be used, the optimal wash conditions can be obtained by shortening the spray time so that less water is used. Also, in test item (3), it is thought that increasing the time under the conditions would improve the wash effect, but this would increase the amount of wash water used and the operating time of the vehicle wash device 31, which would reduce energy efficiency, so the optimal wash conditions for the test location are set taking energy efficiency into consideration.

[0045] The above removal process (S10 4 In the test, the vehicle is washed under selected conditions, and then the test piece 21 is removed from the vehicle. The removed test piece 21 is then placed horizontally with the outer surface 22 facing up inside the vehicle to prevent water droplets from falling, and forced drying using a drying means (not shown) such as an electric heater allows for faster drying than natural drying. The electrical conductivity is measured using an electrical conductivity type salinity measuring device such as that shown in Patent Document 2, and the salt concentration is detected from the electrical conductivity. The amount of salt adhesion on the outer surface 22 of the test piece 21 is measured and obtained using an electrical conductivity type salinity meter. The amount of salt adhesion per unit area and the magnitude of the salt adhesion amount are then obtained from the salinity measured by the electrical conductivity type salinity meter.

[0046] The test piece 21 after measuring the salt concentration is washed with dish detergent or the like and then dried before the next use. That is, the test piece 21 used in the attachment step (S101) is one that has been washed with dish detergent or the like. Note that if lower measurement accuracy is acceptable, other methods for measuring salt concentration may be used.

[0047] The amount of salt adhesion and the location obtained under the previous (first) washing conditions are recorded. During the next (second) operation, the test piece 21 is also attached to the vehicle, and after the operation, the vehicle is washed under different washing conditions, and the washing conditions are changed so that the amount of salt adhesion is lower compared to the first test washing conditions before the change, and the test washing conditions are set so that the amount of salt adhesion after the change is lower than the amount of salt adhesion before the change.

[0048] Areas with a high amount of salt adhesion obtained under the first test cleaning conditions are areas where salt is difficult to remove by cleaning, so the cleaning conditions are changed and the amount of salt adhesion is measured, and if the amount of salt adhesion does not decrease, the conditions are changed or the options for the conditions are changed. By repeating such tests and collecting a large amount of data, the optimal cleaning conditions can be obtained, and the obtained cleaning conditions are highly reliable because they are demonstration experiments conducted for each location to be cleaned.

[0049] Therefore, determining the appropriate cleaning conditions requires a balance between the above items. above The cleaning equipment required at snow removal bases often differs depending on the operating region (for example, Hida region, Hokuriku region, Hokkaido region, etc.).In other words, the optimal conditions for the cleaning equipment must be found for each snow removal base.

[0050] In this way, the number of experiments required to determine appropriate cleaning conditions (in other words, experiments to measure salt concentration) would be enormous, and there is a possibility that they would not be able to be completed within one season of the snow and ice season (generally around November to April).However, in this embodiment, a large number of tests can be carried out efficiently.

[0051] In this way, reference In the example ,carA test piece 21 that can be attached and detached to both antifreeze spraying vehicles 1 is used, and the test piece 21 is attached to the antifreeze spraying vehicle 1. After the antifreeze spraying vehicle 1 is operated, the test piece 21 is removed and the amount of salt adhesion to the outer surface 22 of the test piece 21 removed from the antifreeze spraying vehicle 1 is obtained. Therefore, there is no need to collect a sample while it is attached to the antifreeze spraying vehicle 1, and the amount of salt adhesion to the antifreeze spraying vehicle 1 after it has actually been operated can be easily obtained.

[0052] In this way, reference In the example ,car A test piece 21 that can be attached and detached to both antifreeze spraying vehicles 1 is used, and the test piece 21 is attached to the antifreeze spraying vehicle 1.The antifreeze spraying vehicle 1 is then washed with the test piece 21 attached, and the test piece 21 is then removed and the amount of salt adhesion to the outer surface 22 of the test piece 21 removed from the antifreeze spraying vehicle 1 is obtained.This eliminates the need to collect a sample while it is attached to the antifreeze spraying vehicle 1, and the amount of salt adhesion after washing can be easily obtained.

[0053] In this way, reference In the example , frozen After the antifreeze agent spraying vehicle 1 is operated, the antifreeze agent spraying vehicle 1 is washed with the test piece 21 attached, and after this washing, the test piece 21 is removed, so that the amount of salt adhesion of the antifreeze agent spraying vehicle 1 that has been washed after operation can be obtained.

[0054] In this way, reference In the example, claim 2 In response to this, the test piece 21 is removed from the antifreeze spraying vehicle 1, the test piece 21 is dried, and then the amount of salt adhering to the outer surface of the test piece 21 is obtained using an electrical conduction type salinity meter.Therefore, by drying the removed test piece 21, the amount of salt adhering to the antifreeze spraying vehicle 1 can be easily obtained in a short time.

[0055] In this way, reference In the example, claim 3 Correspondingly, the test piece 21 is provided with a permanent magnet 23 which is a magnetic means that can be attached and detached to the antifreeze spraying vehicle 1, and the test piece 21 can be attached and detached to the antifreeze spraying vehicle 1 by the permanent magnet 23.

[0056] In this way, reference In the example, claim 4 Corresponding to the claim Article 1 Using the vehicle salt content measurement method described above, cleaning is performed under different cleaning conditions, such as the spray direction of the cleaning water and the type of cleaning water, and the amount of salt adhesion on the outer surface of the test piece 21 is obtained after cleaning.From the amount of salt adhesion under different cleaning conditions obtained by the test, the optimal cleaning conditions at the test location can be set.

[0057] below, reference As an example effect, this is a vehicle washing method that uses the vehicle salt measurement method and sets optimal washing conditions to reduce the amount of salt adhesion based on the amount of salt adhesion obtained after washing, so that the amount of salt adhesion after washing can be effectively reduced under conditions appropriate for the washing location.

[0058] Furthermore, a permanent magnet 23 is disposed between the surface of the vehicle body 4 and the test piece 21, and the test piece 21 is detachably attached to the vehicle body 4 by the permanent magnet 23. The permanent magnet 23 and test piece 21 to be used are selected so that the permanent magnet 23 remains on the vehicle body 4. Therefore, once the permanent magnet 23 has been attached to the vehicle body 4, the test piece 21 can be repeatedly attached to the same position as long as the permanent magnet 23 does not come off the vehicle body 4. Furthermore, since the test piece 21 is provided with an identification display portion 24, the vehicle on which the test piece 21 is used and the attachment location can be easily identified.

[0059] In addition, the vehicle washing device 31 is provided with a plurality of washing nozzles 32N arranged sideways in a vertical direction to spray washing water onto the side of the vehicle, a plurality of washing nozzles 33N arranged downward in a horizontal direction to spray washing water onto the top surface of the vehicle, and a plurality of washing nozzles 34N arranged upward in a horizontal direction to spray washing water onto the underside of the vehicle, so that the antifreeze spraying vehicle 1 can be washed efficiently and uniformly.

[0060] Furthermore, since there are a plurality of test items and a plurality of conditions for each test item, optimum cleaning conditions can be effectively set by changing the combination.

[0061] Furthermore, by attaching the test piece 21 to the inner surface of the U-shaped side rails 2L, 2R of the chassis frame 2, which was previously difficult to measure, the amount of salt adhesion on the inner surface can be obtained, and this makes it possible to set cleaning conditions suitable for the inner surface of the side rails 2L, 2R, which are prone to salt adhesion.

[0062] Furthermore, because the test piece 21 is attached to the vehicle with the permanent magnet 23 superimposed on the inner surface of the test piece 21, when the test piece 21 is attached to a flat mounting surface of the vehicle, a gap equal to the thickness of the permanent magnet 23 is formed between the test piece 21 and the mounting surface, and this gap makes it easy to remove the test piece 21. Furthermore, depending on the conditions of the location where the vehicle washing device 31 is used, optimal washing conditions can be set that take energy efficiency into consideration so that the amount of washing water used and the operating time of the vehicle washing device 31 are not extended. [reference Example 2 ]

[0063] FIG. 8 shows the present invention reference Example 2 shows the above reference The same parts as in Example 1 are denoted by the same reference numerals, and the detailed description thereof will be omitted. This figure shows an example in which the operating step (S102) is not used.

[0064] As shown in Figure 8, as an example, when the vehicle is an antifreeze spraying vehicle 1, a salt measurement method for obtaining the amount of salt adhering to the vehicle body 4 includes preparing a plurality of the above-mentioned test pieces 21 for installation and a plurality of pre-cleaning measurement test pieces 21A (Figure 3) having the same configuration as the test pieces 21, and spraying salt water under the same conditions onto the outer surfaces 22 of these plurality of test pieces 21, 21A to adhere salt (adhesion process S201).

[0065] Furthermore, the identification display section 24 may also be provided on the test piece 21A, and since this test piece 21A is not attached to a vehicle, it is sufficient to at least indicate the vehicle display section N, which indicates the vehicle on which the test will be performed, and if a symbol other than an integer is written in the attachment location display section, it can be indicated that the test piece is not attached to a vehicle.

[0066] After the adhesion step (S201), the method further includes a pre-cleaning residual salt amount acquisition step (S202) in which the amount of salt adhesion on the outer surface 22 of a plurality of test pieces 21A for pre-cleaning measurement is measured and the pre-cleaning residual salt amount is acquired from the average value of the salt adhesion amounts of the plurality of test pieces 21A. Note that a single test piece 21A for pre-cleaning measurement may be used. Various methods may be used to acquire the amount of salt adhesion in the pre-cleaning residual salt amount acquisition step (S202), such as the method using an ion detection tube described in the prior art, but an electrical conduction type salinity meter may be used to improve accuracy.

[0067] In addition, after the attachment step (S201), the method includes an attachment step (S101) in which multiple vehicle-mounted test pieces 21 are dried, and after this drying, the test pieces are detachably attached to multiple locations on the outer surface of the vehicle body 4; a cleaning step (S103) in which the sprayer vehicle 1 is washed with the test pieces 21 attached; a removal step (S104) in which the test pieces 21 are removed from the vehicle body 4 after the cleaning step (S103); and a salt adhesion amount acquisition step (S105) in which the amount of salt adhesion is acquired from the outer surface 22 of the test pieces 21 in the removed state.

[0068] Furthermore, this reference As in the example, in the attachment steps other than the attachment step (S101) after the adhesion step (S201), the test piece 21 is used after being washed with food detergent or the like before attachment.

[0069] Therefore, before cleaning, the amount of salt adhesion on all parts of the test piece 21 can be considered to be the same as the amount of salt adhesion on the test piece 21A, and the amount of salt adhesion before cleaning is known, so it is possible to confirm the reduction in the amount of salt adhesion due to cleaning without operating the vehicle, which makes it possible to set preferable cleaning conditions.In addition, it is possible to repeatedly clean and measure only the parts that are prone to salt adhesion, making it possible to set preferable cleaning conditions.

[0070] In this way, reference In the example above reference It has the same action and effect as Example 1, and , trial After salt is attached to the test piece 21, the test piece 21 with the salt attached thereto is attached to an antifreeze spraying vehicle 1, so that the amount of salt attached to the test piece 21 with salt attached thereto after the vehicle is washed can be obtained experimentally without the need for actual operation.

[0071] Also, reference As an effect of the embodiment, a plurality of test pieces 21 for mounting on a vehicle and at least one, preferably a plurality of test pieces 21A for pre-cleaning measurement are used, and the amount of salt adhesion on all test pieces 21, 21A is the same, and a pre-cleaning salt remaining amount acquisition process (S202) is provided in which the amount of salt adhesion on at least one test piece 21A is acquired.Therefore, the amount of salt adhesion before and after cleaning can be acquired, and the two can be compared to set the optimal conditions. [reference Example 3 ]

[0072] FIG. 9 shows the present invention reference Example 3 shows the above reference The same parts as those in the previous example are given the same reference numerals, and their explanations will be omitted. reference In Example 1, an example in which the cleaning step (S103) is not used will be shown.

[0073] As shown in Figure 9, as an example, when the vehicle is an antifreeze sprayer vehicle 1, the salt measurement method for obtaining the amount of salt adhesion attached to the vehicle body 4 includes an attachment process (S101) for removably attaching test pieces 21 to multiple locations on the outer surface of the vehicle body 4, an operation process (S102) for operating the antifreeze sprayer vehicle 1 after attaching the test pieces 21 to the vehicle body 4, a removal process (S104) for removing the test pieces 21 from the sprayer vehicle 1 after the operation process (S102) without cleaning them, and a salt adhesion amount obtaining process (S105) for obtaining the amount of salt adhesion from the outer surface 22 of the test pieces 21 in the removed state.

[0074] In this way, reference In the example, referenceThe same effects and advantages as those of the previous example are obtained, and it is possible to know how much salt will adhere to the vehicle body 4 during actual operation.

[0075] Also, reference As an example effect, it is possible to know how much salt adheres to the vehicle body 4 during actual operation, and it is also possible to check the amount of salt adhesion for each part, and for parts with a large amount of salt adhesion, the cleaning effect can be improved by, for example, setting the condition of the spray temperature of the cleaning water in test item (4) to high.

[0076] Then, when setting effective washing conditions, for example, if the amount of salt adhesion under the floor of the vehicle body 4 washed by the lower washing nozzle 34N is higher than other areas, it is possible to increase the spray pressure and / or pressure of the washing water from the lower washing nozzle 34N. Conversely, for areas where the amount of salt adhesion is smaller than other areas after washing, the condition for the spray temperature of the washing water in test item (4) can be set to low, thereby lowering the temperature of the washing water and saving energy. [Example]

[0077] 10 and 11 show an embodiment of the present invention. 1 Each of the above reference The same parts as in the previous example are given the same reference numerals, and their explanations will be omitted. Fig. 10 shows an example in which a plurality of test pieces 21, 21B are attached to one location to obtain the amount of salt adhesion. The test pieces 21, 21B have the same configuration, and are each detachably attached by the permanent magnet 23.

[0078] Two test pieces 21 and 21B are attached side by side to one location on the vehicle, and after operation, one test piece 21 is removed before the cleaning process to obtain the amount of salt adhesion, and the other test piece 21B is removed after the cleaning process to obtain the amount of salt adhesion.

[0079] As shown in FIG. 11, for example, when the vehicle is an antifreeze spraying vehicle 1, a salt measurement method for acquiring the amount of salt adhering to the vehicle body 4 includes an attachment step (S101') of detachably attaching test pieces 21 to a plurality of locations on the outer surface of the vehicle body 4 and attaching two test pieces 21, 21B side by side in close proximity to one location on the vehicle; an operation step (S102) of operating the antifreeze spraying vehicle 1 after attaching the test pieces 21 to the vehicle body 4; and a cleaning step (S103) of cleaning one of the test pieces 21 after the operation step (S102). 1 A test piece removal step (S104') for one of the test pieces to be removed, and a test piece 2 in the removed state 1 of A pre-cleaning salt adhesion amount measurement step (S105') for acquiring the amount of salt adhesion, and the other test piece 21 B a cleaning step (S103) of cleaning the spray vehicle 1 with the test piece 21 attached; B a removal step (S104) of removing the test piece 21 from the spraying vehicle 1; B and a salt adhesion amount obtaining step (S105) of obtaining the amount of salt adhesion from the outer surface 22 of the device.

[0080] In this way, in this embodiment, reference It has the same effect as the example.

[0081] In addition, in this embodiment, Corresponding to claim 1, detachable test pieces 21, 21B are used on an antifreeze spraying vehicle 1, which is a vehicle, and the two test pieces 21, 21B are attached side by side to one location on the antifreeze spraying vehicle 1. After the antifreeze spraying vehicle 1 is operated, one of the test pieces 21 is removed before the antifreeze spraying vehicle 1 is washed, and the amount of salt adhesion is obtained from the outer surface 22 of one of the test pieces 21 removed from the antifreeze spraying vehicle 1. The antifreeze spraying vehicle 1 is washed with the other test piece 21B attached, and after this washing, the other test piece 21B is removed, and the amount of salt adhesion is obtained from the outer surface 22 of the other test piece 21B removed from the antifreeze spraying vehicle 1. The test pieces 21 and 21B are detachable from both antifreeze spraying vehicles 1, and the test pieces 21 and 21B are attached to the antifreeze spraying vehicle 1. After the antifreeze spraying vehicle 1 is operated, one of the test pieces 2 is removed before cleaning. 1 Remove one test piece 2 removed from the vehicle. 1 of The amount of salt adhesion was measured from the outer surface, and the other test piece 21 B The spray vehicle 1 is washed with the other test piece 21 attached. B and in the removed state, the other test piece 21 B Since the amount of salt adhesion is obtained from the outer surface 22, the amount of salt adhesion after operation and the amount of salt adhesion after operation and cleaning are obtained for each part, and by comparing the two, accurate cleaning conditions can be set. [Example]

[0082] FIG. 12 shows an embodiment of the present invention. 2 indicates the Memorial Examples and each reference example The same parts as those in the previous example are designated by the same reference numerals, and detailed description thereof will be omitted. In this example, the amount of salt in the cleaning water used is measured.

[0083] As exemplified in the type of cleaning water in test item (5), a cleaning water salinity acquisition step (S301) is provided to measure the cleaning water salinity of groundwater, drinking water, and antifreeze-added water used as cleaning water. Because the amount of salt in the cleaning water is minute, an electrical conduction type salinity meter is used for measurement. Also provided is a corrected salt adhesion amount acquisition step (S302) to acquire a corrected salt adhesion amount by subtracting the cleaning water salt amount from the salt adhesion amount obtained in the salt adhesion amount acquisition step (S105).

[0084] In this way, in this embodiment, 1 It has the same action and effect.

[0085] Furthermore, as an effect of the embodiment, by obtaining the amount of salt in the cleaning water, it is possible to obtain a more accurate amount of salt adhering to the test piece 21 after operation or cleaning. [Example]

[0086] FIG. 13 shows an embodiment of the present invention. 3 and the above-mentioned examples and each reference example The same parts as those in the previous figures are denoted by the same reference numerals, and the detailed description thereof will be omitted. This figure shows an example in which a portable cleaning nozzle 51 is used.

[0087] The cleaning nozzle 51 can be carried by an operator by holding the main body 52, and has a tip 53 that is bent relative to the main body 52, with a nozzle portion 54 that sprays cleaning water W provided at this tip 53.

[0088] In this example, the above test items (1) to (3) are set in combination with a cleaning procedure. In this first cleaning procedure, the parts to be cleaned and the order of cleaning are set, and the conditions of the test items (1) to (3) are set for each part. For example, since the cleaning liquid adhering to the exterior surface flows down from top to bottom along the exterior surface of the vehicle, in the first cleaning procedure, the following areas can be cleaned in this order: the top of the driver's seat 3, the front of the driver's seat 3, one left or right side of the driver's seat 3, the rear of the driver's seat 3, the other left or right side of the driver's seat 3, the top of the antifreeze spraying device 6, the front of the antifreeze spraying device 6, one left or right side of the antifreeze spraying device 6, the rear of the antifreeze spraying device 6, the other left or right side of the antifreeze spraying device 6, the spraying section 8 of the antifreeze spraying device 6, one left or right side of the cargo bed 5, the rear of the cargo bed 5, the other left or right side of the cargo bed 5, the front right side of the underfloor, the front left side of the underfloor, the right center of the front and rear of the underfloor, the left center of the front and rear of the underfloor, the rear right side of the underfloor, and the rear left side of the underfloor.In test cleaning using the cleaning nozzle 51, first, the cleaning procedure is the same and the conditions of test items (1) to (3) are set for each area. In this example, the spray time of the cleaning water for test item (3) is measured in seconds for each part. Also, for test items (4) and (5), conditions can be set for each part.

[0089] In this way, in this embodiment, and each reference example In addition, the test can be performed using a portable cleaning nozzle 51.

[0090] Furthermore, as an effect of the embodiment, after cleaning with the vehicle cleaning device 31, areas with a large amount of salt adhesion can be intensively and supplementarily cleaned using the cleaning nozzle 51 held by the worker, thereby reducing the amount of salt adhesion.

[0091] As an effect of the embodiment, when cleaning using the cleaning nozzle 51, after cleaning, the amount of salt adhesion can be checked for each area, and for areas with a large amount of salt adhesion, the cleaning water spray time condition in test item (3) can be set to a large value, or the cleaning water spray temperature condition in test item (4) can be set to a large value, thereby improving the cleaning effect.On the other hand, for areas with a small amount of salt adhesion, the cleaning water spray time condition in test item (3) can be set to a small value, or the cleaning water spray temperature condition in test item (4) can be set to a small value, thereby shortening the cleaning time or lowering the temperature of the cleaning water to save energy.

[0092] Furthermore, since the test is conducted by changing the conditions of the test items under the constant cleaning procedure, which is the order of cleaning, it is possible to prevent errors in the measurement of the salt removal effect due to differences in the cleaning procedure when cleaning using the cleaning nozzle 51. Also, by keeping the cleaning conditions the same and changing the cleaning procedure to compare the salt removal effect, an effective cleaning procedure can be set.

[0093] For example, the amount of salt deposition after cleaning using the first cleaning procedure and a second cleaning procedure in which the order of parts is reversed compared to the first cleaning procedure can be compared under the same cleaning conditions. In other words, the cleaning results of the different cleaning procedures can be compared, and the cleaning procedure with the highest cleaning effect can be used to improve the cleaning effect.

[0094] The present invention is not limited to the present embodiment, and various modifications are possible within the scope of the present invention. For example, the shape of the test piece is not limited to a square, but may be a rectangle, a circle, or the like. and each reference example Although a permanent magnet has been used as an example of a means for detachably attaching the test piece to the vehicle, the attachment means may also be a hook-and-loop fastener or the like. referenceIn Example 1, a cleaning process is performed after one operation process, but cleaning may be performed after multiple operations. As a modified example, a paint layer may be provided on both sides of the test piece 21, and an identification marking may be provided. In this case, if the paint layers on the outer and inner surfaces are different colors, it becomes easier to tell which is the outer surface. Furthermore, the vehicle cleaning device is not limited to one that sprays cleaning water as in the embodiment, but may also be one that sprays cleaning water and is equipped with a cleaning brush, such as a rotary type. Furthermore, in the case of cleaning using a cleaning nozzle 51, the cleaning work is not limited to one worker, and multiple workers, each holding a cleaning nozzle 51, may perform the cleaning work. 。 [Explanation of symbols]

[0095] 1 Antifreeze sprayer (vehicle) 2 Chassis frame 4. Body 21 Test specimen 21A Test piece for measurement before cleaning 21B test piece 22 Exterior 23 Permanent magnet (magnetic means)

Claims

1. A vehicle salt measurement method comprising the steps of: using detachable test pieces on a vehicle; attaching two of the test pieces side by side to one location on the vehicle; operating the vehicle; removing one of the test pieces before washing the vehicle; obtaining the amount of salt adhesion from the outer surface of one of the test pieces removed from the vehicle; washing the vehicle with the other test piece still attached; removing the other test piece after washing; and obtaining the amount of salt adhesion from the outer surface of the other test piece removed from the vehicle.

2. A vehicle salt measurement method as described in claim 1, characterized in that the test piece is removed from the vehicle, the test piece is dried, and then the amount of salt adhesion on the outer surface of the test piece is obtained using an electrical conduction type salinity concentration meter.

3. 2. The method for measuring salt content in a vehicle according to claim 1, wherein the test piece is provided with a magnetic means for being attached to and detached from the vehicle.

4. A vehicle washing test method, comprising: using the vehicle salt content measurement method according to claim 1, washing under different washing conditions; and obtaining the amount of salt attached to the outer surface of the test piece after washing.

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